Communication method, communication device, chip, and computer program

Abstract

An embodiment of the present application provides a communication method and a communication device. The method includes: a terminal determining a maximum sensitivity degradation (MSD) mitigation capability for a first band combination, where the first band combination includes a first band and a second band, and the band number of the first band is different from the band number of the second band; and a terminal transmitting first information to a network, where the first information indicates the MSD mitigation capability. In the embodiment of the present application, the terminal may transmit the first information to the network, where the first information may indicate the terminal's capability to mitigate MSD for the first band combination, so that the network recognizes the terminal's capability to mitigate MSD and can determine whether further MSD mitigation is required based on the first information. The MSD can be effectively mitigated by the terminal or the network, thereby improving the terminal's reception performance.

Description

[Technical Field]

[0001] This application claims priority to Chinese Patent Application No. 202210926439.1, filed with the State Intellectual Property Office of China on August 3, 2022, entitled "Communication Method and Communication Apparatus," which is incorporated herein by reference in its entirety.

[0002] TECHNICAL FIELD Embodiments of the present application relate to the field of communications, and more particularly to communication methods and devices. [Background technology]

[0003] Receiver sensitivity is used to describe the minimum signal reception power of a required downlink signal to be received by a terminal. When the terminal's signal energy is less than the rated receiver sensitivity, the terminal will not receive any data. In other words, receiver sensitivity is the minimum threshold at which a terminal receives a signal. In wireless transmission, receiver sensitivity is similar to the hearing of people communicating. Improving the receiver sensitivity of a signal allows a wireless product to better capture weak signals. Thus, as the transmission distance increases, the received signal becomes weaker, but a high-sensitivity wireless product can still receive data and maintain a stable connection, thereby significantly extending the transmission distance.

[0004] However, in the actual signal transmission process, the reception of the terminal may be interfered with due to various reasons (e.g., signals on two uplink bands are included in the downlink reception band), resulting in degradation of the receiver sensitivity of the terminal, i.e., maximum sensitivity degradation (MSD). MSD affects the downlink communication of the terminal, in other words, affects the reception performance of the terminal. Therefore, the terminal and / or the network need to take corresponding measures to mitigate MSD.

[0005] Generally, both the network and the terminal can mitigate MSD, but the terminal and the network cannot exchange information. Thus, the network cannot recognize which MSD needs to be mitigated and cannot determine whether it needs to take measures to mitigate MSD. Therefore, the MSD cannot be effectively mitigated, which affects the reception performance of the terminal. Summary of the Invention

[0006] The embodiments of the present application provide a communication method and a communication device, wherein a terminal and a network can exchange information through first information, so as to effectively mitigate MSD, thereby improving the receiving performance of a terminal device.

[0007] According to a first aspect, a communication method is provided, applicable to a terminal or a module in the terminal, comprising: determining a maximum sensitivity degradation (MSD) mitigation capability for a first band combination, where the first band combination includes a first band and a second band, and where a band number of the first band is different from a band number of the second band; and transmitting first information, where the first information indicates the MSD mitigation capability for the first band combination.

[0008] In this embodiment of the present application, the terminal may send first information to the network, which may indicate the terminal's ability to mitigate MSD for a first band combination, so that the network can recognize the terminal's ability to mitigate MSD, and determine whether the MSD needs to be further mitigated based on the first information, effectively mitigating the MSD, thereby improving the receiving performance of the terminal.

[0009] In a possible implementation, before the terminal determines the capability of mitigating maximum sensitivity degradation (MSD) for the first band combination, the method further includes: acquiring a first carrier and a second carrier by the terminal, where a first band corresponding to the first carrier and a second band corresponding to the second carrier form a first band combination, and the relationship of the first band combination is carrier aggregation or dual connectivity. In other words, the network configures carrier aggregation CA / dual connectivity DC for the terminal, and the dual connectivity mode may include EN-DC, NE-DC, or NR-DC.

[0010] Referring to the first aspect, in some implementations of the first aspect, the first information includes MSD mitigation capability information, where the MSD mitigation capability information indicates that the terminal can mitigate MSD, or the MSD mitigation capability information indicates that the terminal cannot mitigate MSD.

[0011] In this embodiment of the present application, the first information sent by the terminal to the network may include MSD mitigation capability information, which may indicate that the terminal can mitigate MSD, or may indicate that the terminal cannot mitigate MSD, so that the network determines whether the terminal can mitigate MSD after receiving the first information. If the terminal cannot mitigate MSD, the network may take corresponding measures to mitigate MSD, avoiding the inability to mitigate MSD and the receiving performance of the terminal being affected.

[0012] Referring to the first aspect, in some implementations of the first aspect, if the first MSD value is smaller than or equal to a first threshold, the MSD mitigation capability information indicates that the terminal can mitigate MSD; or if the first MSD value is larger than the first threshold, the MSD mitigation capability information indicates that the terminal cannot mitigate MSD. The first MSD value is the MSD value of the terminal for the first band combination. In other words, the MSD mitigation capability information is determined based on the first MSD value. The first MSD value may be understood as the MSD value actually generated by the terminal for a given band combination (e.g., the first band combination). It should be understood that the first MSD value corresponds to a terminal, and the first MSD values of different terminals may be different.

[0013] Optionally, the first threshold is predefined, the first threshold is configured by using higher layer parameters, or the first threshold is dynamically indicated by using DCI or MAC CE, which is not limited in this application. For example, the value of the first threshold may be 5 dB, 10 dB, or the like.

[0014] In this embodiment of the present application, if the MSD value of the terminal for the first band combination is less than or equal to the first threshold, it indicates that the first MSD value of the terminal (i.e., the MSD value reduced by the terminal) meets a specific requirement. In this case, MSD mitigation capability information may be reported to indicate that the terminal can mitigate the MSD, and the network does not need to further mitigate the MSD. If the first MSD value of the terminal is greater than the first threshold, it indicates that the terminal cannot effectively mitigate the MSD value, in other words, the reduced MSD value cannot meet the requirement. In this case, MSD mitigation capability information may be reported to indicate that the terminal cannot mitigate the MSD, and the MSD of the terminal needs to be mitigated through network scheduling restrictions to improve the receiving performance of the terminal.

[0015] Referring to the first aspect, in some implementations of the first aspect, if the first MSD value is less than or equal to the first threshold and the second MSD value is greater than or equal to the second threshold, the MSD mitigation capability information indicates that the terminal can mitigate MSD; or if the first MSD value is greater than the first threshold, the MSD mitigation capability information indicates that the terminal cannot mitigate MSD. The first MSD value is the terminal's MSD value for the first band combination, the second MSD value is a predefined MSD value for the first band combination, and the first MSD value is less than the second MSD value. In other words, the MSD mitigation capability information is determined based on the first MSD value and the second MSD value. The second MSD value can be understood as an MSD value obtained through the assumption and definition of the band combination in conventional RAN4. At a specific power level, for a given band combination (e.g., the first band combination), the second MSD value is fixed and predefined in the protocol.

[0016] Optionally, the second threshold is predefined, the second threshold is configured by using higher layer parameters, or the second threshold is dynamically indicated by using DCI or MAC CE, which is not limited in this application. For example, the value of the second threshold may be 5 dB, 10 dB, or the like.

[0017] In this embodiment of the present application, the terminal may determine whether the terminal is capable of mitigating MSD based on the first MSD value and the second MSD value. If the first MSD value is smaller than or equal to the first threshold and the second MSD value is larger than or equal to the second threshold, it indicates that the terminal is capable of mitigating MSD, and the network does not need to further mitigate MSD. The terminal may transmit MSD mitigation capability information to the network, indicating that the terminal is capable of mitigating MSD. If the first MSD value is larger than the first threshold, it indicates that the terminal cannot effectively mitigate MSD. Therefore, the terminal may transmit MSD mitigation capability information to the network, indicating that the terminal is unable to mitigate MSD.

[0018] Referring to the first aspect, in some implementations of the first aspect, the first information includes MSD type information, where the MSD type information indicates a type of MSD for the first band combination, and the MSD type information includes at least one of the following: second-order intermodulation interference, third-order intermodulation interference, fourth-order intermodulation interference, fifth-order intermodulation interference, second-order harmonic interference, third-order harmonic interference, fourth-order harmonic interference, fifth-order harmonic interference, second-order harmonic mixing interference, third-order harmonic mixing interference, fourth-order harmonic mixing interference, fifth-order harmonic mixing interference, or inter-band separation.

[0019] In a possible implementation, the MSD type information includes all MSD types present in the first band combination, in other words, all MSD types present in the first band combination are reported to the network.

[0020] In one possible implementation, the MSD type information includes an MSD type corresponding to a maximum second MSD value in the first band combination, where the second MSD value is a predefined MSD value for the first band combination. In other words, the MSD type with the most severe MSD problem is reported to the network.

[0021] In a possible implementation, the MSD type information includes an MSD type for a first band combination that satisfies a first condition, where the first condition is that the first MSD value is greater than or equal to a third threshold, and the first MSD value is the MSD value of the terminal for the first band combination. In other words, the terminal may transmit to the network an MSD type corresponding to the first MSD value greater than or equal to the third threshold based on the first MSD value of the terminal. In this case, it indicates that the terminal cannot mitigate MSD. Therefore, the MSD type that cannot be mitigated needs to be transmitted to the network, and the network may take appropriate measures based on the MSD type information in the first information.

[0022] Optionally, the third threshold is predefined, the third threshold is configured by using higher layer parameters, or the third threshold is dynamically indicated by using DCI or MAC CE, which is not limited in this application. For example, the value of the third threshold may be 5 dB, 10 dB, or the like.

[0023] In a possible implementation, the MSD type information includes an MSD type for the first band combination in which the third MSD value is not zero. The third MSD value is a difference between the first MSD value and the second MSD value, where the first MSD value is an MSD value of the terminal device for the first band combination, and the second MSD value is a predefined MSD value for the first band combination, and the first MSD value is smaller than the second MSD value. In other words, the MSD type information reported by the terminal device is a mitigated MSD type.

[0024] Optionally, the terminal reports an MSD type that satisfies a second condition, where the first MSD value is less than or equal to a first threshold and the second MSD value is greater than a second threshold.

[0025] In a possible implementation, the first information includes MSD mitigation capability information and MSD type information. In other words, when reporting the MSD mitigation capability information, the terminal may also report corresponding MSD type information, specifically, which types of MSD can be mitigated by the terminal or which types of MSD cannot be mitigated by the terminal. In this case, by receiving the first information, the network may recognize which types of MSD need to be mitigated and / or which types of MSD do not need to be mitigated.

[0026] Referring to the first aspect, in some implementations of the first aspect, the first band combination further includes a third band, the band number of the third band being different from the band number of the first band and different from the band number of the second band, the first information including band information indicating the third band, the third band being a band in the first band combination affected by MSD.

[0027] In this case, the terminal may directly report the bands affected by MSD to the network, so that after receiving the first information, the network may determine information about the third band affected by MSD (e.g., the third band number) and appropriately mitigate the MSD problem.

[0028] In a possible implementation, the first information includes at least one of MSD mitigation capability information, MSD type information, or band information, so that after receiving the first information, the network can take appropriate measures based on the first information to mitigate MSD.

[0029] Referring to the first aspect, in some implementations of the first aspect, the first information includes first range information, which includes a range to which the first MSD value belongs, and the first MSD value is an MSD value of the terminal for the first band combination.

[0030] Optionally, the network side and the terminal side may predefine or preconfigure an MSD mitigation range mapping table (i.e., a range mapping table corresponding to the first MSD value). The mapping table may include a value (reported value) reported by the terminal and a first MSD value range corresponding to the reported value. The reported value may be a bit value, and the first MSD value range may be [0, N1), [N1, N2), [N2, N3), or the like, and the bit value corresponds to the first MSD value range. For example, a 0 bit reported by the terminal indicates that the first MSD value is in the range of [0, N1), and a 1 bit reported by the terminal indicates that the first MSD value is in the range of [N1, N2). Therefore, after receiving the reported bit value, the network may determine the range of the first MSD value based on the MSD mitigation range mapping table, so that after receiving the first information, the network may take appropriate measures to mitigate the MSD.

[0031] In a possible implementation, the first information includes at least one of MSD mitigation capability information, MSD type information, band information, or first range information, so that after receiving the first information, the network can take appropriate measures based on the first information to mitigate MSD.

[0032] Optionally, the first information may include first range information and MSD type information. In other words, when reporting the first range information, the terminal may further report the MSD type information, so that after receiving the first information, the network may know the range to which the first MSD value belongs and the type of the first MSD value, and the network can better take corresponding actions based on the first information to mitigate MSD.

[0033] Referring to the first aspect, in some implementations of the first aspect, the first information includes second range information, where the second range information includes a range to which a third MSD value belongs, the third MSD value being a difference between the first MSD value and the second MSD value, the first MSD value being an MSD value of the terminal for the first band combination, the second MSD value being a predefined MSD value for the first band combination, and the first MSD value being smaller than the second MSD value.

[0034] Optionally, the network side and the terminal side may predefine or preconfigure a range mapping table of mitigated MSDs (i.e., a range mapping table corresponding to the third MSD value). The mapping table may include a value (reported value) reported by the terminal and a third MSD value range corresponding to the reported value. The reported value may be a bit value, and the third MSD value range may be [0, N1), [N1, N2), [N2, N3), or the like, and the bit value corresponds to the third MSD value range. For example, a 0 bit reported by the terminal indicates that the third MSD value is in the range of [0, N1), and a 1 bit reported by the terminal indicates that the third MSD value is in the range of [N1, N2). Therefore, after receiving the reported bit value, the network may determine the range of the third MSD value based on the MSD mitigation range mapping table. As a result, after receiving the first information, the network may take appropriate measures to mitigate the MSD.

[0035] In a possible implementation, the first information includes at least one of MSD mitigation capability information, MSD type information, band information, or second range information, so that after receiving the first information, the network can take appropriate measures based on the first information to mitigate MSD.

[0036] Optionally, the first information may include second range information and MSD type information. In other words, when reporting the second range information, the terminal may further report MSD type information, so that the network may know the range to which the third MSD value belongs and the type of the third MSD value after receiving the first information, and the network may better take corresponding actions based on the first information to mitigate MSD.

[0037] Referring to the first aspect, in some implementations of the first aspect, the first information includes a first MSD value, or the first information includes a third MSD value, where the third MSD value is a difference between the first MSD value and the second MSD value, the first MSD value is an MSD value of the terminal for the first band combination, the second MSD value is a predefined MSD value for the first band combination, and the first MSD value is smaller than the second MSD value.

[0038] In a possible implementation, the first information includes at least one of MSD mitigation capability information, MSD type information, band information, a first MSD value, or a third MSD value, so that after receiving the first information, the network can take appropriate measures based on the first information to mitigate the MSD.

[0039] Referring to the first aspect, in some implementations of the first aspect, the first information includes first behavior information and / or second behavior information. The first behavior information indicates that the network transmits uplink transmissions on a single carrier or a single band. The second behavior information indicates that the network does not simultaneously schedule uplink and downlink transmissions in the first band combination, or the second behavior information indicates that an interval between uplink and downlink transmissions scheduled by the network in the first band combination is greater than or equal to a fifth threshold.

[0040] Optionally, the fifth threshold is predefined, the fifth threshold is configured by using a higher layer parameter, or the fifth threshold is dynamically indicated by using a DCI or MAC CE, which is not limited in this application.

[0041] In a possible implementation, the first information includes at least one of MSD mitigation capability information, MSD type information, band information, first range information, first behavior information, or second behavior information, so that after receiving the first information, the network can take appropriate measures based on the first information to mitigate MSD.

[0042] In a possible implementation, the first information includes at least one of MSD mitigation capability information, MSD type information, band information, second range information, first behavior information, or second behavior information, so that after receiving the first information, the network can take appropriate measures based on the first information to mitigate MSD.

[0043] In a possible implementation, the first information includes at least one of MSD mitigation capability information, MSD type information, band information, a first MSD value, a third MSD value, a first behavior information, or a second behavior information, so that after receiving the first information, the network can take appropriate measures based on the first information to mitigate the MSD.

[0044] Referring to the first aspect, in some implementations of the first aspect, the first information includes simultaneous transmission and reception capability indication information, wherein the simultaneous transmission and reception capability indication information indicates that the first band combination supports simultaneous transmission and reception, or the simultaneous transmission and reception capability indication information indicates that the first band combination does not support simultaneous transmission and reception.

[0045] Referring to the first aspect, in some implementations of the first aspect, if the first MSD value is greater than or equal to a first threshold, the simultaneous transmission and reception capability indication information indicates that the first band combination does not support simultaneous transmission and reception; or if the first MSD value is less than the first threshold, the simultaneous transmission and reception capability indication information indicates that the first band combination supports simultaneous transmission and reception.

[0046] Alternatively, if the second MSD value is greater than or equal to the fourth threshold, the simultaneous transmission and reception capability indication information indicates that the first band combination does not support simultaneous transmission and reception; or, if the second MSD value is less than the fourth threshold, the simultaneous transmission and reception capability indication information indicates that the first band combination supports simultaneous transmission and reception.

[0047] The first MSD value is an MSD value of the terminal for the first band combination, the second MSD value is a predefined MSD value for the first band combination, and the first MSD value is smaller than the second MSD value.

[0048] Optionally, the fourth threshold is predefined, the fourth threshold is configured by using higher layer parameters, or the fourth threshold is dynamically indicated by using DCI or MAC CE, which is not limited in this application. For example, the value of the fourth threshold may be 10 dB, 15 dB, 28.7 dB, or the like.

[0049] In this embodiment of the present application, if the first MSD value is greater than or equal to the first threshold, the terminal indicates that the MSD cannot be effectively mitigated. Therefore, a simultaneous transmission and reception capability indication needs to be sent to the network to indicate that the first band combination does not support simultaneous transmission and reception, preventing the network from simultaneously scheduling signal reception and transmission and avoiding further impact on the MSD. In addition, if the second MSD value is greater than or equal to the fourth threshold, it indicates that the original MSD value is large, and if the first band combination still supports simultaneous transmission and reception, the MSD may be further affected. Therefore, the terminal may also report a simultaneous transmission and reception capability indication to indicate that the first band combination does not support simultaneous transmission and reception.

[0050] Referring to the first aspect, in some implementations of the first aspect, if the first MSD value is less than or equal to a first threshold, the simultaneous transmission and reception capability indication information indicates that the first band combination does not support simultaneous transmission and reception, and the first MSD value is the MSD value of the terminal for the first band combination.

[0051] In this embodiment of the present application, if the first MSD value is less than or equal to the first threshold, the terminal may reduce the MSD for the first band combination, and if simultaneous transmission and reception of signals is still supported, the first MSD value of the terminal may be affected (e.g., the first MSD value may increase). As a result, the reception performance of the terminal may be affected. Therefore, in this case, the terminal may report simultaneous transmission and reception capability indication information to indicate that the first band combination does not support simultaneous transmission and reception.

[0052] In a possible implementation, the first information includes at least one of MSD mitigation capability information, MSD type information, band information, first range information, first behavior information, second behavior information, or simultaneous transmission and reception capability indication information, so that after receiving the first information, the network can take appropriate measures based on the first information to mitigate MSD.

[0053] In a possible implementation, the first information includes at least one of MSD mitigation capability information, MSD type information, band information, second range information, first behavior information, second behavior information, or simultaneous transmission and reception capability indication information, so that after receiving the first information, the network can take appropriate measures based on the first information to mitigate MSD.

[0054] In a possible implementation, the first information includes at least one of MSD mitigation capability information, MSD type information, band information, first MSD value, third MSD value, first behavior information, second behavior information, or simultaneous transmission and reception capability indication information, so that after receiving the first information, the network can take appropriate measures based on the first information to mitigate MSD.

[0055] Referring to the first aspect, in some implementations of the first aspect, the first information includes scaling factor information indicating a ratio of a transmission power change value of the terminal to a third MSD value, the third MSD value being a difference between the first MSD value and the second MSD value, the first MSD value being an MSD value of the terminal for the first band combination, the second MSD value being a predefined MSD value for the first band combination, and the first MSD value being smaller than the second MSD value.

[0056] It may be understood that the ratio of the transmit power change value to the third MSD value may be different for different band combinations and different MSD types. Thus, when reporting a given band combination (e.g., the first band combination), the terminal may report scaling factor information corresponding to at least one MSD type.

[0057] In a possible implementation, the first information includes at least one of MSD mitigation capability information, MSD type information, band information, first range information, first behavior information, second behavior information, simultaneous transmission and reception capability indication information, or scaling factor information, so that after receiving the first information, the network can take appropriate measures based on the first information to mitigate MSD.

[0058] In a possible implementation, the first information includes at least one of MSD mitigation capability information, MSD type information, band information, second range information, first behavior information, second behavior information, simultaneous transmission and reception capability indication information, or scaling factor information, so that after receiving the first information, the network can take appropriate measures based on the first information to mitigate MSD.

[0059] In a possible implementation, the first information includes at least one of MSD mitigation capability information, MSD type information, band information, first MSD value, third MSD value, first behavior information, second behavior information, simultaneous transmission and reception capability indication information, or scaling factor information, so that after receiving the first information, the network can take appropriate measures based on the first information to mitigate the MSD.

[0060] Referring to the first aspect, in some implementations of the first aspect, the first information is determined based on a location of the terminal.

[0061] Optionally, the terminal device determines a location in the cell based on the path loss measurement or the timing advance. If the path loss measurement or the timing advance of the terminal device is smaller than or equal to a sixth threshold, the terminal device is located at a position close to the cell to which the terminal device belongs. If the path loss measurement or the timing advance of the terminal device is larger than the sixth threshold, the terminal device is located at a position far away from the cell to which the terminal device belongs. Optionally, the terminal may further determine a location in the cell based on RRM measurement parameters configured by the network.

[0062] Optionally, when the terminal device is located at a position close to the cell to which the terminal device belongs, the first information includes MSD mitigation capability information, where the MSD mitigation capability information indicates that the terminal device can mitigate MSD for the first band combination, or the MSD mitigation capability information indicates that the terminal device cannot mitigate MSD for the first band combination.

[0063] Optionally, if the first MSD value is less than or equal to a first threshold, the MSD mitigation capability information indicates that the terminal device can mitigate the MSD for the first band combination; or if the first MSD value is greater than the first threshold, the MSD mitigation capability information indicates that the terminal device cannot mitigate the MSD for the first band combination. The first MSD value is an MSD value of the terminal for the first band combination.

[0064] Optionally, if the first MSD value is less than or equal to the first threshold and the second MSD value is greater than or equal to the second threshold, the MSD mitigation capability information indicates that the terminal device can mitigate the MSD for the first band combination; or if the first MSD value is greater than the first threshold, the mitigation capability information indicates that the terminal device cannot mitigate the MSD for the first band combination, where the first MSD value is an MSD value of the terminal for the first band combination, the second MSD value is a predefined MSD value for the first band combination, and the first MSD value is less than the second MSD value.

[0065] Optionally, when the terminal device is located far away from a cell to which the terminal device belongs, the first information includes first behavior information and / or second behavior information, where the first behavior information indicates that the network transmits uplink transmissions on a single carrier or a single band, and the second behavior information indicates that the network does not simultaneously schedule uplink and downlink transmissions in the first band combination, or the second behavior information indicates that an interval between uplink and downlink transmissions scheduled by the network in the first band combination is greater than or equal to a fifth threshold.

[0066] In this embodiment of the present application, the terminal considers the influence of the terminal's location on the MSD when determining the first information, so that the terminal can determine and report the first information more efficiently.

[0067] According to a second aspect, a communication method is provided for and applied to a network or a module in the network, the method comprising receiving first information, the first information indicating a terminal's capability to mitigate maximum sensitivity degradation (MSD) for a first band combination, the first band combination including a first band and a second band, the band number of the first band being different from the band number of the second band.

[0068] It should be understood that the first information may be first information according to the first aspect or any one of the possible implementations of the first aspect.

[0069] In this embodiment of the present application, the network receives first information and determines the terminal's ability to mitigate MSD based on the first information, so that the network determines whether the MSD needs to be further reduced based on the first information, thereby improving the receiving performance of the terminal.

[0070] In a possible implementation, the method further includes the network transmitting the first carrier and the second carrier. A first band corresponding to the first carrier and a second band corresponding to the second carrier form a first band combination. The relationship of the first band combination is carrier aggregation, or the relationship of the first band combination is dual connectivity. The dual connectivity mode may include EN-DC, NE-DC, or NR-DC.

[0071] Referring to the second aspect, in some implementations of the second aspect, the network determines to schedule uplink transmissions on a single carrier or a single band based on the first information.

[0072] Referring to the second aspect, in some implementations of the second aspect, the network determines, based on the first information, not to simultaneously schedule uplink and downlink transmissions in the first band combination.

[0073] Referring to the second aspect, in some implementations of the second aspect, the network determines, based on the first information, that the interval between uplink and downlink transmissions scheduled in the first band combination is greater than or equal to a fifth threshold.

[0074] Referring to the second aspect, in some implementations of the second aspect, the network adjusts a transmit power at which the terminal device transmits an uplink signal based on the first information.

[0075] In this embodiment of the present application, the network may take corresponding actions to intervene with the terminal based on the received first information. The network may schedule the terminal to transmit uplink transmissions on a single carrier or a single band, or may not simultaneously schedule uplink and downlink transmissions in the first band combination, where the interval between the scheduled uplink and downlink transmissions in the first band combination is greater than or equal to a fifth threshold, or may adjust the transmit power at which the terminal device transmits the uplink signal. In this way, the MSD of the terminal is mitigated and the receiving performance of the terminal is improved.

[0076] According to a third aspect, there is provided a communications device comprising: a processing unit configured to determine a maximum sensitivity degradation (MSD) mitigation capability for a first band combination, the first band combination including a first band and a second band, the band number of the first band being different from the band number of the second band; and a transmitting unit configured to transmit first information, the first information indicating the MSD mitigation capability.

[0077] It should be understood that the first information may be first information according to the first aspect or any one of the possible implementations of the first aspect.

[0078] Referring to the third aspect, in some implementations of the third aspect, the communication device further includes a receiving unit. The receiving unit is configured to acquire a first carrier and a second carrier. A first band corresponding to the first carrier and a second band corresponding to the second carrier form a first band combination. The relationship of the first band combination is carrier aggregation, or the relationship of the first band combination is dual connectivity. The dual connectivity mode may include EN-DC, NE-DC, or NR-DC.

[0079] Referring to the third aspect, in some implementations of the third aspect, the processing unit is further configured to determine a location in the cell based on the path loss measurement value or the timing advance. If the path loss measurement value or the timing advance value of the terminal device is smaller than or equal to a sixth threshold, the terminal device is located at a position close to the cell to which the terminal device belongs; or if the path loss measurement value or the timing advance value of the terminal device is larger than the sixth threshold, the terminal device is located at a position far away from the cell to which the terminal device belongs.

[0080] Optionally, when the terminal device is located at a position close to the cell to which the terminal device belongs, the first information includes MSD mitigation capability information, where the MSD mitigation capability information indicates that the terminal device can mitigate MSD for the first band combination, or the MSD mitigation capability information indicates that the terminal device cannot mitigate MSD for the first band combination.

[0081] Optionally, if the first MSD value is less than or equal to a first threshold, the MSD mitigation capability information indicates that the terminal device can mitigate the MSD for the first band combination; or if the first MSD value is greater than the first threshold, the MSD mitigation capability information indicates that the terminal device cannot mitigate the MSD for the first band combination. The first MSD value is an MSD value of the terminal for the first band combination.

[0082] Optionally, if the first MSD value is less than or equal to the first threshold and the second MSD value is greater than or equal to the second threshold, the MSD mitigation capability information indicates that the terminal device can mitigate the MSD for the first band combination; or if the first MSD value is greater than the first threshold, the mitigation capability information indicates that the terminal device cannot mitigate the MSD for the first band combination, where the first MSD value is an MSD value of the terminal for the first band combination, the second MSD value is a predefined MSD value for the first band combination, and the first MSD value is less than the second MSD value.

[0083] Optionally, when the terminal device is located far away from a cell to which the terminal device belongs, the first information includes first behavior information and / or second behavior information, where the first behavior information indicates that the network schedules uplink transmissions on a single carrier or a single band, and the second behavior information indicates that the network does not simultaneously schedule uplink and downlink transmissions in the first band combination, or the second behavior information indicates that an interval between uplink and downlink transmissions scheduled by the network in the first band combination is greater than or equal to a fifth threshold.

[0084] According to a fourth aspect, there is provided a communication device including a receiving unit configured to receive first information indicating a terminal's capability to mitigate maximum sensitivity degradation (MSD) for a first band combination, the first band combination including a first band and a second band, wherein a band number of the first band is different from a band number of the second band.

[0085] It should be understood that the first information may be the first information according to the first aspect or any one of the possible implementations of the first aspect.

[0086] Referring to the fourth aspect, in some implementations of the fourth aspect, the communication device further includes a transmitting unit. The transmitting unit is configured to transmit a first carrier and a second carrier. A first band corresponding to the first carrier and a second band corresponding to the second carrier form a first band combination. The relationship of the first band combination is carrier aggregation, or the relationship of the first band combination is dual connectivity. The dual connectivity mode may include EN-DC, NE-DC, or NR-DC.

[0087] Referring to the fourth aspect, in some implementations of the fourth aspect, the communication device further includes a processing unit configured to determine, based on the first information, scheduling of uplink transmissions on a single carrier or a single band.

[0088] Referring to the fourth aspect, in some implementations of the fourth aspect, the processing unit is further configured to determine, based on the first information, not to simultaneously schedule uplink and downlink transmissions in the first band combination.

[0089] Referring to the fourth aspect, in some implementations of the fourth aspect, the processing unit is further configured to determine, based on the first information, that an interval between uplink and downlink transmissions scheduled in the first band combination is greater than or equal to a fifth threshold.

[0090] Referring to the fourth aspect, in some implementations of the fourth aspect, the processing unit is further configured to adjust, based on the first information, a transmission power at which the terminal device transmits an uplink signal.

[0091] According to a fifth aspect, there is provided a communication device comprising a processor, the processor being coupled to a memory, the memory being configured to store a program or instructions, the program or instructions being executed by the processor, the communication device being capable of implementing a method in any possible implementation of the first or second aspect.

[0092] According to a sixth aspect, there is provided a chip including a processor, wherein a memory configured to store a computer program is located independently of the chip, and the processor is configured to execute the computer program stored in the memory to perform the method of any possible implementation of the first or second aspect.

[0093] According to a seventh aspect, there is provided a computer-readable storage medium storing a computer program or instructions which, when executed, implements a method in any possible implementation of the first or second aspect.

[0094] According to an eighth aspect, there is provided a computer program product, the computer program product comprising computer program code, which, when executed on a computer, enables the computer to perform a method in any possible implementation of the first or second aspect.

[0095] It can be understood that any communication device, chip, computer-readable storage medium, computer program product, or the like provided above is configured to execute the corresponding method provided above. Therefore, for the beneficial effects that can be achieved by the communication device, chip, computer-readable storage medium, computer program product, or the like, please refer to the beneficial effects of the corresponding method. Details will not be described again here. [Brief explanation of the drawings]

[0096] [Figure 1] 1 is a diagram of a communication system applicable to embodiments of the present application; [Figure 2] 1 is a schematic flowchart of a communication method according to an embodiment of the present application; [Figure 3] 4 is a schematic flowchart of another communication method according to an embodiment of the present application; [Figure 4] 4 is a schematic flowchart of another communication method according to an embodiment of the present application; [Figure 5] 1 is a schematic block diagram of a communication device according to an embodiment of the present application; [Figure 6] 1 is a diagram of the structure of a communication device according to an embodiment of the present application; DETAILED DESCRIPTION OF THE INVENTION

[0097] The following describes the technical solutions of the embodiments in this application with reference to the accompanying drawings.

[0098] The technical solutions of the embodiments of the present application may be applied to various communication systems, such as global system for mobile communications (GSM), code division multiple access (CDMA) systems, wideband code division multiple access (WCDMA) systems, general packet radio service (GPRS), long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD), universal mobile telecommunications system (UMTS), worldwide interoperability for microwave access (WiMAX) communication systems, fifth generation (5G) mobile communication systems, or new radio (NR) access technologies. The technical solutions provided in this application may further be applied to future communication systems, such as sixth generation (6G) mobile communication systems.

[0099] FIG. 1 is a diagram of a communication system 100 applicable to an embodiment of the present application. As shown in FIG. 1, the communication system 100 may include a core network device 110, an access network device 120, and at least one terminal device (e.g., the terminal device 130 and the terminal device 140 shown in FIG. 1). The terminal device 130 and the terminal device 140 may be connected to the access network device 120 in a wireless manner, and the access network device 120 is connected to the core network device 110 in a wireless or wired manner. It should be understood that the core network device and the access network device may be different physical devices independent of each other, and that the functions of the core network device and the logical functions of the access network device may be integrated into the same physical device, or that some functions of the core network device and some functions of the access network device may be integrated into one physical device. It should further be understood that FIG. 1 is merely a diagram. The communication system may further include other network devices, for example, a wireless relay device and a wireless backhaul device. This is not a limitation in the present application. It can be understood that the network in this embodiment of the present application can be the core network device 110 or the access network device 120. The terminal in this embodiment of the present application can be the terminal device 130 and / or the terminal device 140.

[0100] In this embodiment of the present application, an access network device (e.g., access network device 120) is an access device for a terminal device to access a communication system in a wireless manner. The access network device may also be referred to as a radio access network (RAN) device, a radio access network device, or a network device. For example, the access network device may be a base station. The term base station may encompass or be replaced by a variety of broad names, such as a NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmission and reception point (TRP), transmission point (TP), master eNodeB (MeNB), secondary eNodeB (SeNB), multi-standard radio (MSR) node, home base station, network controller, access node, radio node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), and positioning node. The base station may be a macro base station, a micro base station, a relay node, a donor node, an analog, or a combination thereof. Alternatively, the base station may be a communication module, a modem, or a chip disposed in the device or apparatus. Alternatively, the base station may be a network side device in a 6G network, a device responsible for base station functions in a future communication system, or the like.The base stations may support networks of the same access technology or different access technologies. The base stations may be fixed or mobile. For example, a helicopter or an unmanned aerial vehicle may be configured as a mobile base station, and one or more cells may move based on the location of the mobile base station. In another example, a helicopter or an unmanned aerial vehicle may be configured as a device for communicating with another base station. The specific technology used by the access network device and the specific device configuration are not limited to the embodiments of the present application.

[0101] In some deployments, a gNB may include a CU and a DU. The gNB may further include an active antenna unit (AAU). The CU implements some functions of the gNB. The DU implements some functions of the gNB. For example, the CU is responsible for processing non-real-time protocols and services and implements functions of the radio resource control (RRC) layer and packet data convergence protocol (PDCP) layer. The DU is responsible for processing physical layer protocols and real-time services and implements functions of the radio link control (RLC) layer, media access control (MAC) layer, and physical (PHY) layer. The AAU implements some physical layer processing functions, radio frequency processing, and active antenna-related functions. Information at the RRC layer ultimately becomes information at the PHY layer or is converted from information at the PHY layer. Therefore, in this architecture, higher layer signaling, such as RRC layer signaling, may be considered to be transmitted by the DU or transmitted by the DU and AAU. It may be understood that the network device may be a device including one or more of a CU node, a DU node, and an AAU node. In addition, the CU may be used as a network device in an access network, or may be used as a network device in a core network (CN). This is not limited in the present application.

[0102] In addition, the terminal devices (e.g., terminal device 130 and terminal device 140) in this embodiment of the present application may be devices that provide voice / data connectivity to users, such as handheld devices or in-vehicle devices with wireless connection capabilities; devices in Internet of Vehicles communications, such as communication terminals mounted on vehicles or roadside units (RSUs); communication terminals carried on unmanned aerial vehicles; or terminal devices in Internet of Things (IoT) systems. The terminal devices may also be referred to as user equipment (UE), access terminals, subscriber units, subscriber stations, mobile stations, remote stations, remote terminals, mobile devices, user terminals, terminals, wireless communication devices, user agents, or user equipment.

[0103] For example, the terminal device may be a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, a cellular telephone, a cordless telephone, a session initiation protocol (SIP) telephone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a personal digital assistant (PDAs ... The terminal device may include, but is not limited to, a PDA (registered trademark), a handheld device with wireless communication capabilities, a computing device or another processing device connected to a wireless modem, a wearable device, a terminal device in a 5G network, or a terminal device in a next-generation communication system (e.g., a 6G communication system), a terminal device in a future evolved public land mobile network (PLMN), or the like. The specific form of the terminal device is not limited in the embodiments of the present application.

[0104] The access network devices and terminal devices may be deployed on land, including indoor or outdoor devices, handheld devices, or vehicle-mounted devices; may be deployed on water; or may be deployed on airplanes, balloons, and satellites in the air. The application scenarios of the access network devices and terminal devices are not limited to the embodiments of this application.

[0105] It should be understood that in future communication systems, for example, 6G communication systems, the above-mentioned devices may use the names of devices in 5G communication systems, or may still have other names. This is not limited in the embodiments of the present application. The functions of the above-mentioned devices may be completed by one independent device, or may be completed together by multiple devices. During actual deployment, network elements in the core network may be deployed on the same physical device or different physical devices. This is not limited in the embodiments of the present application. Figure 1 is merely an example and does not constitute any limitation on the scope of protection of the present application. The communication method provided in the embodiments of the present application may further relate to network elements or devices not shown in Figure 1. Of course, the communication method provided in the embodiments of the present application may alternatively include only some devices shown in Figure 1. This is not limited in the embodiments of the present application.

[0106] The communication system 100 used in this embodiment of the present application is merely an example for explanation, and the communication system applicable to this embodiment of the present application is not limited thereto. Any communication system capable of implementing the functions of the above-mentioned device is applicable to this embodiment of the present application.

[0107] In this embodiment of the present application, unless otherwise specified, a network device is an access network device. A terminal device or a network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also referred to as main memory). The operating system may be any one or more computer operating systems for implementing service processing through processes, such as the Linux operating system, Unix operating system, Android operating system, iOS operating system, or Windows operating system. The application layer includes applications such as a browser, an address book, word processing software, and instant messaging software. In addition, the specific structure of the executing entity of the method provided in the embodiment of the present application is not specifically limited in the embodiment of the present application, as long as a program recording the code of the method provided in the embodiment of the present application is executable to perform communication according to the method provided in the embodiment of the present application. For example, the methods provided in the embodiments of the present application may be performed by a terminal device or a network device, or a functional module (e.g., a processor, a chip, or a chip system) in a terminal device or a network device that can call and execute a program.

[0108] As explained in the background art, in the actual signal transmission process, various reasons may cause interference to the UE's signal reception, which may result in receiver sensitivity degradation, i.e., MSD, affecting the UE's reception performance. Based on different causes of interference, there are four types of MSD: inter-modulation (IMD) interference, harmonic / harmonic mixing interference, cross-band isolation, and proximity interference.

[0109] Intermodulation interference refers to the second-, third-, fourth-, or fifth-order intermodulation products of two uplink bands in a dual uplink band combination, such as LTE-NR dual connectivity (E-UTRA-NR dual connectivity, EN-DC) or uplink carrier aggregation (UL CA), being included in the signal reception band of the downlink band. The inclusion of the intermodulation products of two uplink bands in the signal reception band of the downlink band can be understood as an nth-order intermodulation frequency being obtained through calculation of the frequencies of the two uplink bands. The nth-order intermodulation frequency is within the downlink reception band of the UE. As a result, interference may occur in the UE's signal reception, degrading the UE's receiver sensitivity. The downlink reception band may be one of the downlink bands corresponding to the two uplink bands where the intermodulation is generated, or the downlink reception band may be a third band other than the two simultaneous uplink bands in a CA / DC combination that includes more than two bands.

[0110] Harmonic / harmonic mixing interference means that when the transmitter and receiver of a band combination supported by a UE are simultaneously active, the UE's reception performance may be reduced due to harmonic and / or harmonic mixing interference. Harmonic interference means that the second, third, fourth, or fifth harmonic of the uplink signal of the lower band in the CA / DC band combination falls into the higher band, causing interference to the reception of the higher band. Harmonic mixing interference means that the second, third, fourth, or fifth harmonic of the local frequency signal of the lower band in the CA / DC band combination and the mixing of the uplink signal of the higher band fall into the wanted signal reception band of the lower band, causing interference to the reception of the lower band.

[0111] Inter-band isolation means that the UE receiver sensitivity is degraded when the band used by the UE to transmit uplink information is very close to the band used to receive downlink information, or when the uplink signal in a band in a band combination is interfered from the uplink to the downlink due to insufficient filter suppression of the frequency range of the received signal in another band.

[0112] Near-field interference refers to interference of uplink signals on the same band with signals on the receive band.

[0113] In addition, based on the assumptions and definitions of band combinations in conventional RAN4, the obtained MSD values exceed 10 dB (dB) in many band combinations, and even exceed 20 dB in some band combinations. Excessively large MSD values make it unsuitable for operators to deploy CA / DC combinations. The band combination DC_3-n78, which is widely used in 5G NR, is used as an example. DC_3-n78 indicates that there is a dual connectivity DC between band 3 and band n78. The MSD values of DC_3-n78 at different channel bandwidths are shown in Table 1. The channel bandwidths of downlink band n78 all exceed 10 dB. When the downlink channel bandwidth of n78 is 10 MHz, 15 MHz, and 20 MHz, the MSD value even exceeds 20 dB. It can be understood that if the signal energy of a terminal is smaller than the MSD value specified in the protocol, the terminal cannot receive any data. Therefore, if the MSD value is excessively high, the reception performance of the terminal may be affected. Therefore, the MSD value needs to be reduced, in other words, the MSD needs to be mitigated. [Table 1] [Table 1]

[0114] Currently, there are various methods for mitigating MSD, which are mainly implemented by using UE hardware and through network scheduling. For intermodulation interference (MSD), the intermodulation interference (MSD) can be mitigated by adjusting UE hardware or through network scheduling, such as by improving UE printed circuit board (PCB) isolation, improving UE antenna isolation, improving radio frequency device performance (e.g., power amplifier (PA) linearity), reducing UE transmit power, or network scheduling on a single uplink carrier. For harmonic / harmonic mixed interference (MSD), the harmonic / harmonic mixed interference (MSD) can also be mitigated by adjusting UE hardware or through network scheduling, such as by increasing the UE PA output harmonic suppression, using a harmonic suppression filter at the PA output, or implementing non-simultaneous transmission and reception through network scheduling restrictions. Various methods for mitigating MSD are described in detail below.

[0115] Method 1: Improve PCB isolation.

[0116] When high-frequency lines on a PCB are routed, crosstalk will be introduced if the signal lines are written in parallel over a short distance. Crosstalk refers to the coupling phenomenon between signal lines that are not directly connected. The parameters of the PCB layers, the spacing between signal lines, the electrical characteristics of the driving and receiving ends, and the connection method of the signal lines all affect crosstalk to some extent. A possible solution is to reduce high-frequency signal crosstalk through PCB routing, in other words, to mitigate intermodulation interference (MSD) by using PCB isolation methods.

[0117] For example, a ground line or ground plane may be inserted between two lines with severe crosstalk to separate the lines and reduce the crosstalk. In another example, provided there is sufficient routing space, the spacing between adjacent signal lines may be increased and the length of parallel signal lines may be reduced. In yet another example, if parallel lines on the same layer cannot be avoided, measures such as allowing lines on two adjacent layers to be perpendicular to each other may be taken.

[0118] Method 2: Improve the antenna isolation of the UE.

[0119] Antenna isolation refers to the ratio of the signal received by another antenna to the signal transmitted by that antenna. In other words, if an antenna receives fewer signals from another antenna, the isolation between the two antennas is better and the degree of interference is lower. Effective measures to improve antenna isolation include blocking, cross polarization, cancellation, and proper antenna layout.

[0120] The blocking method refers to placing a barrier on the electromagnetic coupling channel to block electromagnetic coupling. For example, a parabolic antenna is provided with a skirt edge, which improves the front-to-back ratio index of the parabolic antenna by nearly 15 dB compared to a standard antenna. The orthogonal polarization method refers to two antennas being polarized orthogonally to each other. For example, two antennas in a duplex state are orthogonal linearly polarized or orthogonally circularly polarized for transmitting and receiving signals, respectively, to improve the isolation effect. The cancellation method refers to manually creating a separate coupling channel between two antennas, so that the coupling channel and the original coupling channel cancel each other out, thereby enhancing the isolation effect. The most straightforward way to improve antenna isolation is to increase the antenna spacing, but in practice, there are often limitations, especially when the antenna layout range on a mobile terminal is narrow. Therefore, proper antenna layout is more important. When solving practical problems, the above methods are generally used in a comprehensive manner.

[0121] Method 3: UE transmits power reduction.

[0122] An increase in UE transmit power results in an increase in the MSD value. For example, when the power level increases from 3 to 2 (i.e., from 23 dBm to 26 dBm), the MSD value of second-order intermodulation may increase from 26 dB to 31.9 dB, and the MSD value of fourth-order intermodulation may increase from 8 dB to 18.5 dB. The transmit power of the physical uplink shared channel (PUSCH) is determined by using Equation 1:

number

number

number

number

[0123]

number

number

number

number

number

number

number

[0124] Configured maximum transmit power

number

number

[0125]

number

number

number

number

[0126] Referring to Equations 2 to 4, it can be seen that the range of the configured maximum transmit power is related to the maximum power reduction (MPR). A larger MPR value indicates a smaller configured maximum transmit power. Therefore, the UE can reduce its transmit power and mitigate MSD by determining a relatively large MPR value by the UE. In addition, the MPR value is related to the power level, waveform selection, modulation scheme, and frequency domain resource allocation of uplink transmission. Therefore, the MPR can be increased by using a higher modulation order or adjusting the RB allocation, thereby reducing the UE transmit power and mitigating MSD.

[0127] Method 4: Perform network scheduling on a single uplink carrier to send uplink transmissions.

[0128] For dual uplink band combinations such as UL CA / EN-DC, intermodulation interference may occur when uplink transmissions are sent simultaneously on two uplink carriers. If network devices implement scheduling restrictions to ensure that uplink transmissions can only be sent on one uplink carrier at a time and that uplink transmissions are not scheduled on other carriers, intermodulation interference can be effectively avoided and MSD can be mitigated.

[0129] Method 5: Perform network scheduling to allow non-simultaneous sending and receiving of uplink and downlink transmissions.

[0130] The main cause of harmonic / harmonic mixed interference is that the UE needs to receive downlink transmissions while transmitting uplink transmissions. As a result, the receiver sensitivity of the UE is affected. Therefore, the network implements restrictions to ensure that downlink transmissions are not scheduled while uplink transmissions are scheduled at the same time, so that the UE does not need to receive downlink transmissions while transmitting uplink transmissions; or, uplink transmissions are not scheduled while downlink transmissions are scheduled, so that the UE does not need to transmit uplink transmissions while receiving downlink transmissions, thereby reducing the impact on receiver sensitivity.

[0131] In conclusion, the mitigation methods vary for different types of MSD. For example, four methods: improving PCB isolation, improving antenna isolation, reducing transmit power, and single-carrier uplink transmission through network scheduling restrictions can mitigate intermodulation interference MSD, but the mitigation of harmonic / harmonic mixing interference MSD is small. Two methods: increasing PA output harmonic suppression and implementing non-simultaneous transmission and reception through network scheduling restrictions can mitigate harmonic / harmonic mixing interference MSD, but the mitigation of intermodulation interference MSD is small.

[0132] In addition, the performance of UEs produced by different manufacturers varies. Some UEs can meet the requirements for mitigating MSD. For example, larger PCB separation is possible through design limitations. However, some UEs cannot mitigate MSD. The network does not know which UEs can mitigate MSD and which cannot. Therefore, this can lead to two consequences. First, operators avoid deploying band combinations with excessively severe MSD issues, which may include n3+n78 and n3+n41. However, these bands are the main bands for operators in China, such as China Mobile, China Unicom, and China Telecom, and network deployment restrictions on these bands can significantly affect operator revenues. Second, operators still deploy band combinations with large MSD and ignore MSD, which inevitably affects UE reception performance.

[0133] Furthermore, since the network does not know whether the accessed UE can mitigate MSD, the network does not know whether it needs to intervene with the UE through scheduling restrictions to mitigate the UE's MSD. For UEs whose MSD has been automatically mitigated, the network does not need to further mitigate the MSD. In this case, if the network takes measures blindly, the scheduling restrictions will increase. For UEs that cannot automatically mitigate MSD, the network needs to take measures. However, since the network does not know which MSD of the band combination needs to be mitigated, it therefore cannot take appropriate measures.

[0134] Therefore, the embodiments of the present application provide a communication method and a communication device, in which a terminal sends first information to a network, where the first information indicates an ability to mitigate MSD, so that the network can determine whether to take measures based on the first information, thereby improving the transmission performance of a terminal having an MSD problem.

[0135] 2 illustrates a communication method according to an embodiment of the present application. As shown in FIG. 2, the method 200 relates to an interaction between a network and a terminal. The network may be, for example, the access network device 120 and the core network device 110 illustrated in FIG. 1, and the terminal may be the terminal device 130 and the terminal device 140 illustrated in FIG. 1. The method 200 may specifically include S210 and S220.

[0136] S210: The terminal determines a maximum sensitivity degradation (MSD) mitigation capability for a first band combination, where the first band combination includes a first band and a second band, and the band number of the first band is different from the band number of the second band.

[0137] It should be understood that since the performance of different terminals is different, some terminals can meet the requirements for mitigating MSD. For example, the hardware design of the terminal may allow for greater PCB separation. In this case, the terminal can mitigate intermodulation interference MSD. Specifically, after determining the two bands in the first band combination, the terminal may determine whether it can mitigate MSD for the first band combination based on the hardware conditions of the terminal. In other words, the terminal determines its ability to mitigate MSD for the first band combination.

[0138] For example, the first band combination is CA_n3-n78, the first band is n3, the second band is n78, and carrier aggregation is performed on the first band n3 and the second band n78. The CA_n3-n78 band combination may have both intermodulation interference MSD and harmonic interference MSD. If the hardware design of the terminal allows for greater PCB separation, the intermodulation interference MSD may be mitigated, and the terminal determines that it can mitigate the intermodulation interference MSD of the CA_n3-n78 band combination.

[0139] S220: The terminal transmits first information, and in response, the network receives the first information.

[0140] It should be understood that the first information indicates a capability to mitigate MSD for the first band combination. The first information may include at least one of the following: MSD mitigation capability information, MSD type information, band information, first range information, first behavior information, second behavior information, simultaneous transmission and reception, capability information, or scaling factor information. Alternatively, the first information may include at least one of the following: MSD mitigation capability information, MSD type information, band information, second range information, first behavior information, second behavior information, simultaneous transmission and reception, capability information, or scaling factor information. Alternatively, the first information may include at least one of the following: mitigation capability information, MSD type information, band information, first MSD value, third MSD value, first behavior information, second behavior information, simultaneous transmission and reception capability information, or scaling factor information.

[0141] In a possible implementation, the first information includes MSD mitigation capability information, which indicates that the terminal can mitigate MSD, or which indicates that the terminal cannot mitigate MSD.

[0142] In an embodiment, the MSD mitigation capability information is determined based on a first MSD value, which is the MSD value of the terminal for the first band combination. The first MSD value may be understood as the MSD value actually generated by the terminal for a given band combination (e.g., the first band combination). It should be understood that the first MSD value corresponds to a terminal, and the first MSD values of different terminals may be different. The first MSD value also corresponds to a band combination, and the MSD values of different band combinations are determined independently. For example, the terminal increases the original MSD value (in other words, increases the second MSD value) by increasing antenna isolation, PCB isolation, and the like. The original MSD value here may be understood as the MSD value obtained through the assumption and definition of the band combination in conventional RAN4. At a specific power level, there is a fixed MSD type and corresponding second MSD value for a given band combination (e.g., the first band combination).

[0143] Specifically, if the first MSD value is less than or equal to the first threshold, the MSD mitigation capability information indicates that the terminal can mitigate MSD; or if the first MSD value is greater than the first threshold, the MSD mitigation capability information indicates that the terminal cannot mitigate MSD. Alternatively, if the first MSD value is less than the first threshold, the MSD mitigation capability information indicates that the terminal can mitigate MSD; or if the first MSD value is greater than or equal to the first threshold, the MSD mitigation capability information indicates that the terminal cannot mitigate MSD.

[0144] It can be understood that if the MSD value of the terminal for the first band combination is smaller than or equal to the first threshold, it indicates that the first MSD value of the terminal (i.e., the MSD value reduced by the terminal) meets a specific requirement. In this case, the MSD mitigation capability information can be reported to indicate that the terminal can mitigate the MSD, and the network does not need to further mitigate the MSD. If the first MSD value of the terminal is larger than the first threshold, it indicates that the terminal cannot mitigate the MSD value, or the reduced MSD value cannot meet the requirement. In this case, the MSD mitigation capability information can be reported to indicate that the terminal cannot mitigate the MSD, and network scheduling restrictions need to be intervened in the terminal to mitigate the MSD of the terminal.

[0145] In another embodiment, the MSD mitigation capability information is determined based on a first MSD value and a second MSD value. The first MSD value is the MSD value of the terminal for the first band combination, and may be understood as the MSD value actually generated by the terminal for a given band combination (e.g., the first band combination). The second MSD value is a predefined MSD value for the first band combination, and the first MSD value is smaller than the second MSD value. The second MSD value may be understood as an MSD value obtained through the assumption and definition of the band combination in conventional RAN4. For a given band combination (e.g., the first band combination), the second MSD value is fixed and predefined in the protocol. Generally, the first MSD value is smaller than the second MSD value; in other words, the terminal reduces the MSD value. The first MSD value is the mitigated MSD value, and the second MSD value is the original MSD value.

[0146] Specifically, if the first MSD value is less than or equal to the first threshold and the second MSD value is greater than or equal to the second threshold, the MSD mitigation capability information indicates that the terminal can mitigate MSD; or, if the first MSD value is greater than the first threshold, the MSD mitigation capability information indicates that the terminal cannot mitigate MSD. Alternatively, if the first MSD value is less than the first threshold and the second MSD value is greater than or equal to the second threshold, the MSD mitigation capability information indicates that the terminal can mitigate MSD; or, if the first MSD value is greater than or equal to the first threshold, the MSD mitigation capability information indicates that the terminal cannot mitigate MSD.

[0147] It may be understood that the terminal may determine whether the terminal is capable of mitigating MSD based on the first MSD value and the second MSD value. If the first MSD value is smaller than or equal to the first threshold and the second MSD value is larger than or equal to the second threshold, it indicates that the terminal is capable of mitigating MSD, and the network does not need to further mitigate MSD. The terminal may transmit MSD mitigation capability information to the network, indicating that the terminal is capable of mitigating MSD. If the first MSD value is larger than the first threshold, it indicates that the terminal cannot effectively mitigate MSD. Therefore, the terminal may transmit MSD mitigation capability information to the network, indicating that the terminal is not capable of mitigating MSD.

[0148] It should be noted that the first threshold and / or the second threshold may be predefined, the first threshold and / or the second threshold may be configured by using higher layer parameters, or the first threshold and / or the second threshold may be dynamically indicated by using downlink control information (DCI) or a media access control element (MAC CE), which is not limited in this application. For example, the value of the first threshold and / or the second threshold may be 5 dB, 10 dB, or the like.

[0149] For example, the first information may include one bit. When the bit is set to 0, the first information indicates that the terminal device includes MSD mitigation capability information indicating that the terminal device cannot mitigate MSD. When the bit is set to 1, the first information indicates that the terminal device includes MSD mitigation capability information indicating that the terminal device can mitigate MSD.

[0150] It may be understood that the first information may include only MSD mitigation capability information. For example, only when the first MSD value decreases to 5 dB or less, the MSD mitigation capability information reported by the terminal indicates that the terminal can mitigate the MSD. However, when the second MSD value decreases from 20 dB to 10 dB, the first MSD value (i.e., the reduced MSD value of 10 dB) cannot meet the transmission requirement (the first MSD value is less than or equal to 5 dB), so the MSD mitigation capability information reported by the terminal indicates that the terminal cannot mitigate the MSD, and network scheduling restriction needs to be intervened in the terminal to mitigate the MSD of the terminal.

[0151] In another possible implementation, the first information includes MSD type information, the MSD type information indicating a type of MSD for the first band combination, and the MSD type information includes at least one of the following: second-order intermodulation interference, third-order intermodulation interference, fourth-order intermodulation interference, fifth-order intermodulation interference, second-order harmonic interference, third-order harmonic interference, fourth-order harmonic interference, fifth-order harmonic interference, second-order harmonic mixing interference, third-order harmonic mixing interference, fourth-order harmonic mixing interference, fifth-order harmonic mixing interference, or inter-band separation.

[0152] In an embodiment, the MSD type information includes all MSD types present in the first band combination. In other words, all MSD types present in the first band combination are reported to the network. It can be understood that there can be at least two MSD types for a specific band combination. For example, second-order intermodulation interference, fourth-order intermodulation interference, fifth-order intermodulation interference, and harmonic interference all exist in the CA_n3-n78 band combination.

[0153] In another embodiment, the MSD type information includes an MSD type corresponding to a maximum second MSD value in the first band combination, where the second MSD value is a predefined MSD value for the first band combination. In other words, the MSD type with the most severe MSD problem is reported to the network.

[0154] In another embodiment, the MSD type information includes an MSD type for a first band combination that satisfies a first condition, where the first condition is that the first MSD value is greater than or equal to a third threshold, and the first MSD value is the MSD value of the terminal for the first band combination. In other words, the terminal may transmit to the network an MSD type corresponding to the first MSD value greater than or equal to the third threshold based on the first MSD value of the terminal. In this case, it indicates that the terminal is also unable to mitigate MSD. Therefore, the MSD type that cannot be mitigated needs to be transmitted to the network, so that the network can take appropriate measures based on the MSD type information in the first information.

[0155] It should be noted that the third threshold may be predefined, configured by using higher layer parameters, or dynamically indicated by using DCI or MAC CE, which is not limited in this application. For example, the value of the third threshold may be 5 dB, 10 dB, or the like.

[0156] In another embodiment, the MSD type information includes an MSD type indicating that a third MSD value for the first band combination is not zero. The third MSD value is a difference between the first MSD value and the second MSD value, where the first MSD value is an MSD value of the terminal device for the first band combination, and the second MSD value is a predefined MSD value for the first band combination, and the first MSD value is smaller than the second MSD value. In other words, the MSD type information reported by the terminal device is a mitigated MSD type.

[0157] Optionally, the terminal reports an MSD type that satisfies a second condition, where the first MSD value is less than or equal to a first threshold and the second MSD value is greater than a second threshold.

[0158] For example, if the first MSD type satisfies the following conditions: the first MSD value is less than or equal to a first threshold value, and the second MSD value is greater than a second threshold value, the MSD type information reported by the terminal includes the first MSD type, i.e., the first MSD type is the type of MSD mitigated by the terminal. The type of MSD mitigated by the terminal is reported, so that the network can recognize which type of MSD is mitigated by the terminal by receiving the first information and take more appropriate corresponding actions to mitigate another type of MSD.

[0159] In another example, if the second MSD type satisfies the conditions that the first MSD value is greater than the first threshold and the second MSD value is greater than the second threshold, the MSD type information reported by the terminal does not include the second MSD type. In other words, the terminal mitigates the second MSD type, but the degree of mitigation for the second MSD type is insufficient. After the network receives the first information, if the first information does not include the second MSD type, it indicates that the terminal does not mitigate the second MSD type, and the network needs to take corresponding measures to mitigate the second MSD type.

[0160] In another example, if the third MSD type satisfies that the first MSD value is smaller than or equal to the first threshold and the second MSD value is smaller than or equal to the first threshold, the reduced MSD type reported by the terminal does not include the third MSD type; in other words, the original MSD value of the third MSD type is not large (i.e., the second MSD value is not large), and neither the terminal nor the network needs to reduce the third MSD type.

[0161] Optionally, the first information may include 8 bits, each bit corresponding to one MSD type. In this case, the first information may correspond to up to 8 MSD types. For a bit set to 0, it indicates that the MSD type corresponding to the bit is not present in the first band combination. For a bit set to 1, it indicates that the MSD type corresponding to the bit is present in the first band combination.

[0162] In another possible implementation, the first information includes MSD mitigation capability information and MSD type information. In other words, when reporting the MSD mitigation capability information, the terminal may report corresponding MSD type information, specifically, which types of MSD can be mitigated by the terminal or which types of MSD cannot be mitigated by the terminal. In this case, by receiving the first information, the network may recognize which types of MSD need to be mitigated and / or which types of MSD do not need to be mitigated.

[0163] In another possible implementation, the first band combination further includes a third band, the band number of the third band being different from the band number of the first band and different from the band number of the second band, the first information including band information indicating the third band, the third band being a band in the first band combination affected by the MSD.

[0164] In this case, the terminal may directly report the bands affected by MSD to the network, so that the network, after receiving the first information, may determine information about the third band affected by MSD and appropriately mitigate the MSD problem.

[0165] For example, when the band combination includes at least three bands, and the MSD generated in the first band and the MSD generated in the second band are included in the reception band of the third band, the terminal device may report band information of the third band. For example, the terminal device may report the band number of the third band.

[0166] In another possible implementation, the first information includes first range information, the first range information including a range to which the first MSD value belongs, and the first MSD value is an MSD value of the terminal for the first band combination.

[0167] Optionally, the network side and the terminal side may predefine an MSD mitigation range mapping table (i.e., a first MSD range mapping table), or the network may preconfigure it. The mapping table may include values (reported values) reported by the terminal and first MSD value ranges corresponding to the reported values. The reported values may be bit values, and the first MSD value ranges may be [0, N1), [N1, N2), [N2, N3), or the like, and the bit values correspond to the first MSD value ranges. For example, a 0 bit reported by the terminal indicates that the first MSD value is in the range of [0, N1), and a 1 bit reported by the terminal indicates that the first MSD value is in the range of [N1, N2). Therefore, after receiving the reported values, the network may determine the range of the first MSD value based on the MSD mitigation range mapping table.

[0168] For example, the mitigation range division of MSD may be shown in Table 2 or Table 3. The values of (N1, N2, N3, ..., N(m+1)) are predefined or preconfigured. Optionally, m=3, and the values of (N1, N2, N3, N4) are (5, 10, 15, 20); m=7, and the values of (N1, N2, N3, N4, N5, N6, N7) are (5, 10, 15, 20, 25, 30, 35); or m=0, and the value of N1 may be 5, 10, 15, or 20. [Table 2] [Table 2] [Table 3] [Table 3]

[0169] Optionally, the first information may include first range information and MSD type information. In other words, when reporting the first range information, the terminal may further report the MSD type information, so that after receiving the first information, the network may know the range to which the first MSD value belongs and the type of the first MSD value, and the network can better take corresponding actions based on the first information to mitigate MSD.

[0170] In another possible implementation, the first information includes second range information, the second range information including a range to which a third MSD value belongs, the third MSD value being a difference between the first MSD value and the second MSD value, the first MSD value being an MSD value of the terminal for the first band combination, the second MSD value being a predefined MSD value for the first band combination, and the first MSD value being smaller than the second MSD value.

[0171] Optionally, the network side and the terminal side may predefine a mitigated MSD range mapping table (i.e., a third MSD range mapping table), or the network may preconfigure it. The mapping table may include a value (reported value) reported by the terminal and a third MSD value range corresponding to the reported value. The reported value may be a bit value, and the third MSD value range may be [0, N1), [N1, N2), [N2, N3), or the like, and the bit value corresponds to the third MSD value range. For example, a 0 bit reported by the terminal indicates that the third MSD value is in the range of [0, N1), and a 1 bit reported by the terminal indicates that the third MSD value is in the range of [N1, N2). Therefore, after receiving the reported bit value, the network may determine the range of the third MSD value based on the MSD mitigation range mapping table, so that after receiving the first information, the network may take appropriate measures to mitigate the MSD.

[0172] For example, the value range division of the mitigated MSD may be shown in Table 2, Table 3, or Table 4. The values of (N1, N2, N3, ..., N(m+1)) are predefined or preconfigured. Optionally, m=3 and the values of (N1, N2, N3, N4) are (5, 10, 15, 20); m=7 and the values of (N1, N2, N3, N4, N5, N6, N7) are (5, 10, 15, 20, 25, 30, 35); or m=0 and the value of N1 may be 5, 10, 15, or 20. [Table 4] [Table 4]

[0173] Optionally, the first information may include second range information and MSD type information. In other words, when reporting the second range information, the terminal may further report MSD type information, so that the network may know the range to which the third MSD value belongs and the type of the third MSD value after receiving the first information, and the network may better take corresponding actions based on the first information to mitigate MSD.

[0174] In another possible implementation, the first information includes a first MSD value, or the first information includes a third MSD value, the third MSD value being a difference between the first MSD value and the second MSD value, the first MSD value being an MSD value of the terminal for the first band combination, the second MSD value being a predefined MSD value for the first band combination, and the first MSD value being smaller than the second MSD value.

[0175] In another possible implementation, the first information includes first behavior information and / or second behavior information, where the first behavior information indicates that the network schedules uplink transmissions on a single carrier or a single band, and the second behavior information indicates that the network does not simultaneously schedule uplink and downlink transmissions on the first band combination, or the second behavior information indicates that an interval between uplink and downlink transmissions scheduled by the network on the first band combination is greater than or equal to a fifth threshold.

[0176] Optionally, when there is intermodulation interference MSD in the first band combination, the second MSD value is large, and the terminal cannot mitigate the MSD, the terminal reports that the network device is expected to perform a first behavior. For UL CA / EN-DC, if there are uplink resources on two carriers at the same time, the network schedules uplink transmissions on only one carrier.

[0177] Optionally, when there is harmonic / mixed harmonic interference MSD in the first band combination, the second MSD value is large, and the terminal cannot mitigate the MSD, the terminal reports that the network is expected to perform a second behavior. For FDD carriers, uplink and downlink transmissions are not scheduled simultaneously, avoiding the terminal from receiving and transmitting information simultaneously, or there is a certain separation between receiving and transmitting information.

[0178] It should be noted that the fifth threshold may be predefined, the fifth threshold may be configured by using higher layer parameters, or the fifth threshold may be dynamically indicated by using DCI or MAC CE, which is not a limitation in this application.

[0179] In another possible implementation, the first information includes simultaneous transmission and reception capability indication information, wherein the simultaneous transmission and reception capability indication information indicates that the first band combination supports simultaneous transmission and reception, or the simultaneous transmission and reception capability indication information indicates that the first band combination does not support simultaneous transmission and reception.

[0180] In an embodiment, if the first MSD value is greater than or equal to a first threshold, the simultaneous transmission and reception capability indication information indicates that the first band combination does not support simultaneous transmission and reception; or if the first MSD value is less than the first threshold, the simultaneous transmission and reception capability indication information indicates that the first band combination supports simultaneous transmission and reception.

[0181] If the first MSD value is greater than or equal to the first threshold, it may be understood to indicate that the terminal cannot effectively mitigate MSD. Therefore, a simultaneous transmission and reception capability indication needs to be sent to the network to indicate that the first band combination does not support simultaneous transmission and reception, thereby preventing the network from simultaneously scheduling signal reception and transmission and avoiding further impact on MSD.

[0182] In another embodiment, if the second MSD value is greater than or equal to a fourth threshold, the simultaneous transmission and reception capability indication information indicates that the first band combination does not support simultaneous transmission and reception; or if the second MSD value is less than the fourth threshold, the simultaneous transmission and reception capability indication information indicates that the first band combination supports simultaneous transmission and reception.

[0183] It can be understood that if the second MSD value is greater than or equal to the fourth threshold, it indicates that the original MSD value is large, and if the first band combination still supports simultaneous transmission and reception, the MSD may be further affected. Therefore, the terminal may also need to report simultaneous transmission and reception capability indication information to indicate that the first band combination does not support simultaneous transmission and reception.

[0184] In another embodiment, if the first MSD value is less than or equal to a first threshold, the simultaneous transmission and reception capability indication information indicates that the first band combination does not support simultaneous transmission and reception, and the first MSD value is the MSD value of the terminal for the first band combination.

[0185] It can be understood that if the first MSD value is smaller than or equal to the first threshold, in other words, if the terminal reduces the MSD for the first band combination and simultaneous transmission and reception of signals is still supported, the first MSD value of the terminal may be affected, for example, the first MSD value may increase. As a result, the reception performance of the terminal may be affected. Therefore, in this case, the terminal needs to report simultaneous transmission and reception capability indication information to indicate that the first band combination does not support simultaneous transmission and reception.

[0186] It should be understood that if the terminal has reported capability information supporting simultaneous transmission and reception before transmitting the first information, the terminal may transmit simultaneous transmission and reception capability indication information to indicate that the first band combination does not support simultaneous transmission and reception. If the terminal does not report capability information supporting simultaneous transmission and reception before transmitting the first information, the terminal may report capability information for non-simultaneous transmission and reception, the terminal may not report capability information related to simultaneous transmission and reception, or the terminal may transmit simultaneous transmission and reception capability indication information to indicate that the first band combination does not support simultaneous transmission and reception.

[0187] It should be noted that the fourth threshold may be predefined, configured by using higher layer parameters, or dynamically indicated by using DCI or MAC CE, which is not limited in this application. For example, the value of the fourth threshold may be 10 dB, 15 dB, 28.7 dB, or the like.

[0188] In another possible implementation, the first information includes scaling factor information indicating a ratio of a transmission power change value of the terminal to a third MSD value, the third MSD value being a difference between the first MSD value and the second MSD value, the first MSD value being an MSD value of the terminal for the first band combination, the second MSD value being a predefined MSD value for the first band combination, and the first MSD value being smaller than the second MSD value.

[0189] In some embodiments, the first information reported by the terminal includes a ratio of the terminal's transmit power change value to the third MSD value. The terminal calculates scaling factor information based on the relationship between the transmit power change value and the third MSD value. For example, if the terminal's transmit power increases by 2 dB and the MSD value decreases by 4 dB, the scaling factor reported by the terminal is 0.5.

[0190] In some other embodiments, the first information reported by the terminal includes a transmission power change value and a third MSD value, in other words, the terminal separately reports the transmission power change value and the third MSD value of the terminal, and the network calculates the scaling factor information based on the first information. For example, if the transmission power change value reported by the terminal is 2 dB and the third MSD value is 4 dB, the scaling factor obtained by the terminal network through calculation is 0.5.

[0191] In some other embodiments, the network and the terminal may predefine a scaling factor mapping table, or the network may preconfigure it. The mapping table may include values reported by the terminal (reported values) and scaling factor ranges corresponding to the reported values. The reported values may be bit values, and the scaling factor ranges may be [0, 0.2), [0.2, 0.4), ..., and [0.8, 1), where the bit values correspond to the scaling factor ranges. For example, a 0 bit reported by the terminal indicates that the scaling factor is in the range [0, 0.2), and a 1 bit reported by the terminal indicates that the scaling factor is in the range [0.2, 0.4). Therefore, after receiving the reported bit values, the network may determine the scaling factor range based on the scaling factor range mapping table.

[0192] In another possible implementation, the first information may include MSD type information and scaling factor information. Considering different band combinations and different MSD types, the ratio of the transmit power change value to the third MSD value may be different. Therefore, when reporting a given band combination (e.g., the first band combination), the terminal may report scaling factor information corresponding to at least one MSD type. After receiving the first information, the network may recognize the scaling factor corresponding to a particular MSD type, so that the transmit power of the terminal may be appropriately adjusted.

[0193] It should be understood that the first information may be carried on a MAC CE and transmitted to the network, or may be carried on a PUSCH and transmitted to the network, which is not limited in the present application.

[0194] In addition, after receiving the first information, the network recognizes that the terminal can mitigate the MSD, or recognizes the type of the mitigated MSD, or the mitigation value of the MSD, and then the network can determine whether the MSD needs to be further mitigated.

[0195] Optionally, if the network determines that the MSD does not need to be further mitigated, the network does not perform any action after receiving the first information. If the network determines that the MSD needs to be further mitigated, the network may mitigate the MSD of the terminal through scheduling restrictions.

[0196] In an embodiment, the network recognizes that the terminal cannot mitigate the MSD after receiving the first information, and then the network takes corresponding measures to mitigate the MSD.

[0197] Specifically, after receiving the first information, the network may recognize an MSD type with an excessively large MSD value, and then the network may take corresponding actions based on the MSD type to mitigate the MSD. For example, if the MSD type reported by the terminal is intermodulation interference, the network may schedule uplink transmissions to be sent on a single carrier or a single band to mitigate this type of MSD. If the MSD type reported by the terminal is harmonic / harmonic intermodulation interference, the network may not schedule uplink and downlink transmissions simultaneously, or there may be a specific interval between scheduled uplink and downlink transmissions to mitigate this type of MSD.

[0198] In another embodiment, after receiving the first information, the network device recognizes that the network behavior expected by the terminal is the first behavior or the second behavior. In this case, the network performs corresponding scheduling restrictions based on the first behavior or the second behavior that the terminal expects to perform, in other words, the network schedules uplink transmissions on a single carrier or a single band, and the network does not simultaneously schedule uplink and downlink transmissions in the first band combination, or there is a specific interval between uplink and downlink transmissions scheduled by the network in the first band combination.

[0199] In this embodiment of the present application, the terminal may transmit first information to the network, where the first information may indicate the terminal's ability to mitigate MSD for a first band combination, so that the network knows the terminal's ability to mitigate MSD and can determine whether the MSD needs to be further mitigated based on the first information. The MSD can be effectively mitigated by the terminal or the network, so that the receiving performance of the terminal can be improved.

[0200] 3 illustrates another communication method according to an embodiment of the present application. As shown in FIG. 3, the method 300 relates to an interaction between a network device and a terminal device. The network device may be, for example, the access network device 120 and the core network device 110 illustrated in FIG. 1, and the terminal device may be the terminal device 130 and the terminal device 140 illustrated in FIG. 1. The method 300 may specifically include steps S310 to S340.

[0201] S310: The terminal device obtains a first carrier and a second carrier, and in response, the network device transmits the first carrier and the second carrier.

[0202] The network device may add a first carrier to initial configuration information for the terminal device. The terminal device may access the network device through the first carrier and establish an RRC connection. The frequency of the first carrier belongs to a first band. The network device may query capability information of the UE by using signaling, and the UE reports the capability information of the UE. The capability information may include a list of band combinations supported by the UE and / or a list of candidate band combinations. The network device adds a second carrier as a secondary cell for the UE by using RRC reconfiguration information. The frequency of the second carrier belongs to a second band.

[0203] Carrier aggregation CA is performed on the uplink carrier of the first band and the uplink carrier of the second band, or the first carrier and the second carrier form dual connectivity, which may be EN-DC dual connectivity, NE-DC dual connectivity, NR-DC dual connectivity, or the like, which is not limited in this application.

[0204] It can be understood that the terminal device is configured to aggregate the first carrier and the second carrier, or the terminal device is configured to form dual connectivity of the first carrier and the second carrier, and the first carrier and the second carrier form a first band combination. For example, the band combination DC_3-n78 indicates that there is dual connectivity between band 3 and band n78.

[0205] S320: The terminal determines a maximum sensitivity degradation (MSD) mitigation capability for a first band combination, where the first band combination includes a first band and a second band, and the band number of the first band is different from the band number of the second band.

[0206] S330: The terminal device transmits first information, and in response, the network device receives the first information.

[0207] For S320 and S330, please refer to S210 and S220, respectively, and for the sake of brevity, the details will not be described again here.

[0208] S340: The network device determines whether to implement a scheduling restriction on the terminal device based on the first information.

[0209] Specifically, after receiving the first information, the network device determines whether the MSD needs to be further reduced based on the first information. If the network device determines that the terminal device has reduced the MSD, the network device may not perform any operation after receiving the first information. If the network device determines that the MSD needs to be further reduced, the network device may implement a scheduling restriction on the terminal device to reduce the MSD of the terminal device.

[0210] Optionally, after receiving the first information, if the network device recognizes an MSD type with an excessively large MSD value, the network device takes measures based on the specific circumstances of the first information. For example, if the MSD type reported by the terminal device is intermodulation interference, the network device may schedule uplink transmission on a single carrier or a single band to mitigate this type of MSD. If the MSD type reported by the terminal device is harmonic / harmonic intermodulation interference, the network device may not schedule uplink and downlink transmissions simultaneously, or there is a specific interval between scheduled uplink and downlink transmissions to mitigate this type of MSD.

[0211] Optionally, after receiving the first information, if the network device recognizes that the network behavior expected by the terminal device is the first behavior or the second behavior, the network device may execute a corresponding scheduling restriction based on the first behavior or the second behavior expected by the terminal device to perform. In other words, the network device determines, based on the first information, that the terminal device schedules uplink transmission on a single carrier or a single band, the network device determines, based on the first information, that the terminal device does not simultaneously schedule uplink and downlink transmissions in the first band combination, or the network device determines, based on the first information, that an interval between uplink transmission and downlink transmission scheduled in the first band combination is greater than or equal to a fifth threshold.

[0212] Optionally, after receiving the first information, if the network device can recognize the ratio of the transmission power change value of the terminal device and the third MSD value, the network device can adjust the transmission power at which the terminal device transmits an uplink signal based on the first information to reduce the impact on the MSD.

[0213] In this embodiment of the present application, the terminal device and the network device may exchange information through first information, which may indicate the terminal device's ability to mitigate MSD for a first band combination, so that the network device determines whether it needs to further mitigate MSD based on the first information, avoiding the impact of MSD on downlink communication, and thereby improving the receiving performance of the terminal.

[0214] 4 illustrates another communication method according to an embodiment of the present application. As shown in FIG. 4, the method 400 relates to an interaction between a network device and a terminal device. The network device may be, for example, the access network device 120 and the core network device 110 illustrated in FIG. 1, and the terminal device may be the terminal device 130 and the terminal device 140 illustrated in FIG. 1. The method 400 may specifically include steps S410 to S460.

[0215] S410: The terminal device obtains a first carrier and a second carrier, and in response, the network device transmits the first carrier and the second carrier.

[0216] For the specific content of this step, please refer to S310, and the details will not be explained again here.

[0217] S420: The terminal device determines a maximum sensitivity degradation (MSD) mitigation capability for a first band combination, where the first band combination includes a first band and a second band, and the band number of the first band is different from the band number of the second band.

[0218] For the specific content of this step, please refer to S210, and the details will not be explained again here.

[0219] S430: The terminal device determines the location of the terminal device in the cell.

[0220] Optionally, the terminal device determines its location in the cell based on a path loss measurement or a timing advance (TA). If the path loss measurement or timing advance of the terminal device is smaller than or equal to a sixth threshold, the terminal device is located near the cell to which the terminal device belongs. If the path loss measurement or timing advance of the terminal device is larger than the sixth threshold, the terminal device is located far away from the cell to which the terminal device belongs.

[0221] Optionally, the terminal device may further determine its location in the cell based on radio resource management (RRM) measurement parameters configured by the network.

[0222] S440: The terminal device determines first information based on the location of the terminal device.

[0223] Optionally, when the terminal device is located at a position close to the cell to which the terminal device belongs, the first information includes MSD mitigation capability information, where the MSD mitigation capability information indicates that the terminal device can mitigate MSD for the first band combination, or the MSD mitigation capability information indicates that the terminal device cannot mitigate MSD for the first band combination.

[0224] In an embodiment, if the first MSD value is less than or equal to a first threshold, the MSD mitigation capability information indicates that the terminal device can mitigate the MSD for the first band combination; or if the first MSD value is greater than the first threshold, the MSD mitigation capability information indicates that the terminal device cannot mitigate the MSD for the first band combination. The first MSD value is an MSD value of the terminal for the first band combination.

[0225] In another embodiment, if the first MSD value is less than or equal to the first threshold and the second MSD value is greater than or equal to the second threshold, the MSD mitigation capability information indicates that the terminal device can mitigate the MSD for the first band combination; or if the first MSD value is greater than the first threshold, the mitigation capability information indicates that the terminal device cannot mitigate the MSD for the first band combination. The first MSD value is the terminal's MSD value for the first band combination, the second MSD value is a predefined MSD value for the first band combination, and the first MSD value is less than the second MSD value.

[0226] Optionally, when the terminal device is located far away from a cell to which the terminal device belongs, the first information includes first behavior information and / or second behavior information, where the first behavior information indicates that the network schedules uplink transmissions on a single carrier or a single band, and the second behavior information indicates that the network does not simultaneously schedule uplink and downlink transmissions in the first band combination, or the second behavior information indicates that an interval between uplink and downlink transmissions scheduled by the network in the first band combination is greater than or equal to a fifth threshold.

[0227] S450: The terminal device transmits first information, and in response, the network device receives the first information.

[0228] For the specific content of this step, please refer to S220, and the details will not be explained again here.

[0229] S460: The network device determines whether to enforce scheduling restrictions on the terminal device based on the first information.

[0230] For the specific content of this step, please refer to S340. The details will not be repeated here.

[0231] In this embodiment of the present application, when determining the first information, the terminal device considers the influence of the terminal device's location on the MSD, so that the terminal device can more efficiently determine and report the first information, and the network device determines based on the first information whether to take corresponding measures to further reduce the MSD, thereby avoiding affecting the receiving performance of the terminal device as much as possible.

[0232] Above, the method embodiment of the present application is described in detail with reference to Figures 1 to 4. Hereinafter, the apparatus embodiment of the present application is described in detail with reference to Figures 5 and 6. It should be understood that the description of the method embodiment corresponds to the description of the apparatus embodiment. Therefore, for parts not described in detail, please refer to the above method embodiment.

[0233] FIG. 5 is a schematic block diagram of a communication device according to an embodiment of the present application.

[0234] In some embodiments, the communication device 500 includes a processing unit 520 and a transmitting unit 530. Optionally, the communication device 500 may be configured to implement steps or procedures performed by a terminal device in the method embodiments shown in Figures 2 to 4. For example, the communication device 500 may be a terminal device, or a chip or circuit in a terminal device.

[0235] The processing unit 520 is configured to determine a maximum sensitivity degradation (MSD) mitigation capability for a first band combination, where the first band combination includes a first band and a second band, and a band number of the first band is different from a band number of the second band. The transmitting unit 530 is configured to transmit first information, where the first information indicates the MSD mitigation capability.

[0236] Optionally, the communication device 500 further includes a receiving unit 510. The receiving unit 510 is configured to obtain a first carrier and a second carrier. A first band corresponding to the first carrier and a second band corresponding to the second carrier form a first band combination. The relationship of the first band combination is carrier aggregation, or the relationship of the first band combination is dual connectivity. The dual connectivity mode may include EN-DC, NE-DC, or NR-DC.

[0237] Optionally, the processing unit 520 is further configured to determine a location in a cell based on the path loss measurement or the timing advance. If the path loss measurement or the timing advance of the terminal device is smaller than or equal to a sixth threshold, the terminal device is located at a position close to the cell to which the terminal device belongs; or if the path loss measurement or the timing advance of the terminal device is larger than the sixth threshold, the terminal device is located at a position far away from the cell to which the terminal device belongs.

[0238] If the terminal device is located at a position close to the cell to which the terminal device belongs, the first information includes MSD mitigation capability information, which indicates that the terminal device can mitigate MSD for the first band combination, or the MSD mitigation capability information indicates that the terminal device cannot mitigate MSD for the first band combination.

[0239] If the first MSD value is less than or equal to a first threshold, the MSD mitigation capability information indicates that the terminal device can mitigate the MSD for the first band combination; or if the first MSD value is greater than the first threshold, the MSD mitigation capability information indicates that the terminal device cannot mitigate the MSD for the first band combination. The first MSD value is an MSD value of the terminal for the first band combination.

[0240] If the first MSD value is less than or equal to the first threshold and the second MSD value is greater than or equal to the second threshold, the MSD mitigation capability information indicates that the terminal device can mitigate the MSD for the first band combination; or if the first MSD value is greater than the first threshold, the mitigation capability information indicates that the terminal device cannot mitigate the MSD for the first band combination. The first MSD value is the terminal's MSD value for the first band combination, the second MSD value is a predefined MSD value for the first band combination, and the first MSD value is less than the second MSD value.

[0241] When the terminal device is located far away from a cell to which the terminal device belongs, the first information includes first behavior information and / or second behavior information, the first behavior information indicating that the network transmits uplink transmissions on a single carrier or a single band, the second behavior information indicating that the network does not simultaneously schedule uplink and downlink transmissions in the first band combination, or the second behavior information indicating that an interval between uplink and downlink transmissions scheduled by the network in the first band combination is greater than or equal to a fifth threshold.

[0242] In some embodiments, the communication device 500 comprises a receiving unit 510. Optionally, the communication device 500 may be configured to implement steps or procedures performed by a network device in the method embodiments shown in Figures 2 to 4. For example, the communication device 500 may be a network device, or may be a chip or circuit in a network device.

[0243] The receiving unit 510 is configured to receive first information indicating a terminal's capability to mitigate maximum desensitization (MSD) for a first band combination, the first band combination including a first band and a second band, wherein the band number of the first band is different from the band number of the second band.

[0244] Optionally, the communication device further includes a transmitting unit 530. The transmitting unit 530 is configured to transmit a first carrier and a second carrier. A first band corresponding to the first carrier and a second band corresponding to the second carrier form a first band combination. The relationship of the first band combination is carrier aggregation, or the relationship of the first band combination is dual connectivity. The dual connectivity mode may include EN-DC, NE-DC, or NR-DC.

[0245] Optionally, the communication device further comprises a processing unit 520. The processing unit 520 is configured to determine, based on the first information, to schedule uplink transmission on a single carrier or a single band.

[0246] Optionally, the processing unit 520 is further configured to determine, based on the first information, not to schedule uplink and downlink transmissions simultaneously on the first band combination.

[0247] Optionally, the processing unit 520 is further configured to determine, based on the first information, that an interval between uplink and downlink transmissions scheduled in the first band combination is greater than or equal to a fifth threshold.

[0248] Optionally, the processing unit 520 is further configured to adjust, based on the first information, a transmission power at which the terminal device transmits an uplink signal.

[0249] FIG. 6 is a diagram of the structure of a communication device according to an embodiment of the present application.

[0250] 6, the communication device 600 includes a processor 610. The processor 610 is coupled to a memory 620. The memory 620 is configured to store computer programs or instructions and / or data. The processor 610 is configured to execute the computer programs or instructions stored in the memory 620 or read the data stored in the memory 620 to perform the method in the above-described method embodiments.

[0251] Optionally, there are one or more processors 610 .

[0252] Optionally, there are one or more memories 620 .

[0253] Optionally, memory 620 and processor 610 are integrated together or located separately.

[0254] Optionally, as shown in Figure 6, the communication device further includes a transceiver 630. The transceiver 630 is configured to receive and / or transmit signals. For example, the processor 610 is configured to control the transceiver 630 to receive and / or transmit signals.

[0255] Optionally, the communication apparatus 600 may be configured to perform the operations performed by the terminal device in the above-described method embodiments. For example, the processor 610 is configured to execute a computer program or instructions stored in the memory 620 to implement the associated operations performed by the terminal device in the above-described method embodiments. For example, the transceiver 630 may be configured to perform the terminal device's receiving operation at S310 shown in FIG. 3 and further to perform the terminal device's transmitting operation at S330. The processor 610 is configured to perform the terminal device's processing steps in this embodiment of the present application. For example, the processor 610 is configured to perform an operation of determining first information based on the location of the terminal device. It should be understood that the communication apparatus 600 shown in FIG. 6 may perform the operations performed by the terminal in FIGS. 2 to 4.

[0256] Optionally, the communication device 600 may be configured to perform the operations performed by the network device in the above-described method embodiments. For example, the processor 610 is configured to execute computer programs or instructions stored in the memory 620 to implement the associated operations performed by the network device in the above-described method embodiments. For example, the transceiver 630 may be configured to perform the network device's transmitting operation at S310 shown in FIG. 3 and further to perform the network device's receiving operation at S450 shown in FIG. 4. The processor 610 is configured to perform the processing steps of the network device in this embodiment of the present application. For example, the processor 610 is configured to determine, based on the first information, not to simultaneously schedule uplink and downlink transmissions in the first band combination, or to adjust, based on the first information, the transmit power at which the terminal device transmits an uplink signal. It should be understood that the communication device 600 shown in FIG. 6 may perform the operations performed by the network devices in FIGS. 2 to 4.

[0257] It should further be understood that FIG. 6 is merely an example and not a limitation, and that a communications device including a processor, memory, and transceiver may not rely on the structure shown in FIG.

[0258] Additionally, the present application further provides a chip, the chip including a processor, a memory configured to store a computer program, the memory being located independently of the chip, and the processor being configured to execute the computer program stored in the memory, such that the operations and / or processes performed by the terminal device, the first device, or the positioning management device in any of the method embodiments are performed.

[0259] Furthermore, the chip may include a communication interface, which may be an input / output interface, an interface circuit, or the like. Furthermore, the chip may include a memory.

[0260] The chip in this embodiment of the present application may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), a CPU, a network processor (NP), a digital signal processor (DSP), a microcontroller unit (MCU), a programmable logic device (PLD), another programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or another integrated chip.

[0261] The present application further provides a computer program product, which includes computer program code, which, when executed on a computer, enables the computer to perform the method in any one of the embodiments shown in Figures 2 to 4.

[0262] The present application further provides a computer-readable medium, which stores program code, which, when executed on a computer, enables the computer to execute the method in any one of the embodiments shown in Figures 2 to 4.

[0263] In implementation, the steps of the above method can be completed by using an integrated logic circuit of hardware in a processor or instructions in the form of software. The steps of the method disclosed with reference to the embodiments of the present application can be executed and completed by a hardware processor, or can be executed and completed directly by a combination of hardware and software modules in a processor. The software modules can be located in a storage medium that is mature in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an electrically erasable programmable memory, or a register. The storage medium is located in the memory. The processor reads information in the memory and completes the steps of the method in combination with the hardware. To avoid repetition, the details will not be described again here.

[0264] It should be noted that the processor in this embodiment of the present application has signal processing capabilities and may be an integrated circuit chip. During implementation, the steps of the above method embodiments can be completed by using hardware integrated logic circuits in the processor or instructions in the form of software. The general-purpose processor may be a microprocessor, or the processor may be any conventional processor or the like. The steps of the method disclosed with reference to the embodiments of the present application may be performed and completed by a hardware decode processor, or may be performed and completed directly by a combination of hardware and software modules in the decode processor. The software modules may be located in a storage medium well-established in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an electrically erasable programmable memory, or a register. The storage medium is located in the memory. The processor reads information in the memory and completes the method steps in combination with its hardware.

[0265] It can be understood that memory in this embodiment of the present application can be volatile or nonvolatile memory, or can include volatile and nonvolatile memory. Nonvolatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM) used as an external cache. By way of example and not limitation, many forms of RAM may be used, such as, for example, static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), sync link dynamic random access memory (sync link DRAM, SLDRAM), and direct rambus dynamic random access memory (direct rambus RAM, DR RAM). Note that memory in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0266] Those skilled in the art may recognize that, in combination with the examples described in the embodiments disclosed herein, the units and algorithm steps may be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed by hardware or software depends on the specific application and the design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementations should not be considered to go beyond the scope of the present application.

[0267] Those skilled in the art can clearly understand that for convenience and simple description, the specific operation processes of the above-mentioned devices and units may be referred to the corresponding processes in the method embodiments, and the details will not be described again here.

[0268] Those skilled in the art may recognize that, in combination with the examples described in the embodiments disclosed herein, the units and algorithm steps may be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed by hardware or software depends on the specific application and the design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementations should not be considered to go beyond the scope of the present application.

[0269] Those skilled in the art can clearly understand that for convenience and simple description, the specific operation processes of the above systems, devices and units may be referred to the corresponding processes in the method embodiments, and the details will not be described again here.

[0270] In some embodiments provided herein, it should be understood that the disclosed devices and methods may be implemented in other manners. For example, device embodiments are merely examples. For example, the division of units is merely a logical division of functions, and other divisions may be used in actual implementation. For example, multiple units or components may be combined or integrated into another system, and some features may be omitted or not implemented. In addition, the shown or discussed mutual couplings or direct couplings or communication connections may be implemented by using some interfaces. Indirect couplings or communication connections between devices or units may be implemented in electronic, mechanical, or other forms.

[0271] The units described as separate parts may or may not be physically separate, and the parts shown as units may or may not be physical units, and may be located in one location or distributed over multiple network units, some or all of which may be selected based on the actual requirements for realizing the objectives of the solutions of the embodiments.

[0272] Additionally, the functional units in the embodiments of the present application may be integrated into one processing unit, or each of the units may exist physically alone, or two or more units may be integrated into one unit.

[0273] When a function is implemented in the form of a software functional unit and sold or used as an independent product, the function may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may essentially be implemented in the form of a software product, or a portion of the technical solution may be implemented in the form of a software product. A computer software product is stored in a storage medium and includes a plurality of instructions for instructing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method described in the embodiments of the present application. The above-mentioned storage medium includes any medium capable of storing program code, such as a USB flash drive, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0274] The terms used in the above embodiments are merely intended to describe particular embodiments and are not intended to limit the present application. As used in this specification and the appended claims, the singular terms "a," "an," and "it" are intended to include forms such as "one or more," unless the context clearly dictates otherwise. It should be further understood that in the following embodiments of the present application, "at least one" and "one or more" mean one, two, or more. The terms "first," "second," and various numbers are used merely for distinction to facilitate description and are not used to limit the scope of the embodiments of the present application. The term "and / or" is used to describe a correspondence between corresponding objects and indicates that three relationships may exist. For example, "A and / or B" may represent the following three cases: only A is present, only B is present, and both A and B are present, where A and B may be singular or plural. The symbol " / " generally indicates an "or" relationship between related objects. The sequence numbers of the following processes do not imply the order of execution. The order of execution of the processes should be determined according to the functions and internal logic of the processes, and should not constitute any limitation on the implementation process of the embodiments of the present application. In addition, in the embodiments of the present application, numbers such as "301", "401", and "501" are simply used as identifiers to facilitate description, and do not limit the order of executing steps.

[0275] References to "embodiments," "some embodiments," or the like herein mean that one or more embodiments herein include the particular feature, structure, or characteristic described with reference to the embodiment. In this application, the terms "example," "for example," or the like are used to denote an example, illustration, or description. Any embodiment or design scheme described herein as "exemplary" or "for example" should not be construed as being preferred or having more advantages over another embodiment or design scheme. In particular, terms such as "example" and "for example" used herein are intended to present relevant concepts in a specific implementation. The terms "include," "have," and variations thereof all mean "including, but not limited to," unless otherwise emphasized. In the embodiments herein, descriptions such as "when," "in the case of," and "in the case of" all mean that a device performs a corresponding process in an objective case, and are not time-limited, and the device does not necessarily perform a definite action during implementation. This does not imply any other limitations. In this application, "illustrate" may include "directly illustrate" and "indirectly illustrate." When one piece of designation information indicates A, the designation information may directly indicate A or indirectly indicate A, but does not necessarily indicate that the designation information holds A.

[0276] The above description is merely a specific implementation example of the present application and is not intended to limit the scope of protection of the present application. Any modifications or replacements that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application shall be included in the scope of protection of the present application. Therefore, the scope of protection of the present application shall be subject to the scope of protection of the claims.

Claims

1. A communication method applied to a terminal or a module in said terminal, comprising: determining a maximum sensitivity degradation (MSD) mitigation capability for a first band combination, wherein the first band combination includes a first band and a second band, and the band number of the first band is different from the band number of the second band; and transmitting first information, wherein the first information indicates the capability to mitigate the MSD for the first band combination; A method for providing the above.

2. A communication method applied to a network or to a module in said network, comprising: receiving first information, wherein the first information indicates a terminal's capability to mitigate maximum desensitization (MSD) for a first band combination, the first band combination including a first band and a second band, and a band number of the first band being different from a band number of the second band; A method for providing the above.

3. 3. The method of claim 1, wherein the first information includes MSD mitigation capability information, wherein the MSD mitigation capability information indicates that the terminal can mitigate the MSD, or wherein the MSD mitigation capability information indicates that the terminal cannot mitigate the MSD.

4. If a first MSD value is less than or equal to a first threshold, the MSD mitigation capability information indicates that the terminal can mitigate the MSD; or If the first MSD value is greater than a first threshold, the MSD mitigation capability information indicates that the terminal cannot mitigate the MSD; the first MSD value is an MSD value of the terminal for the first band combination; The method of claim 3.

5. If the first MSD value is less than or equal to a first threshold and the second MSD value is greater than or equal to a second threshold, the MSD mitigation capability information indicates that the terminal can mitigate the MSD; or If the first MSD value is greater than a first threshold, the MSD mitigation capability information indicates that the terminal cannot mitigate the MSD; the first MSD value is an MSD value of the terminal for the first band combination, the second MSD value is a predefined MSD value for the first band combination, and the first MSD value is smaller than the second MSD value; The method of claim 3.

6. 6. The method of claim 1, wherein the first information includes MSD type information, the MSD type information indicating a type of the MSD, and the MSD type information includes at least one of the following: second-order intermodulation interference, third-order intermodulation interference, fourth-order intermodulation interference, fifth-order intermodulation interference, second-order harmonic interference, third-order harmonic interference, fourth-order harmonic interference, fifth-order harmonic interference, second-order harmonic mixing interference, third-order harmonic mixing interference, fourth-order harmonic mixing interference, fifth-order harmonic mixing interference, or inter-band separation.

7. 7. The method of claim 6, wherein the MSD type information includes a type of the MSD of the first band combination that satisfies a first condition, the first condition being that the first MSD value is greater than or equal to a third threshold, and the first MSD value is the MSD value of the terminal for the first band combination.

8. the first band combination further includes a third band, the band number of the third band being different from the band number of the first band, and the band number of the third band being different from the band number of the second band; 8. The method of claim 1, wherein the first information includes band information, the band information indicating the third band, the third band being a band in the combination of the first bands that is affected by the MSD.

9. the first information includes first range information, the first range information includes a range to which the first MSD value belongs, and the first MSD value is the MSD value of the terminal for the first band combination; 9. The method according to any one of claims 1 to 8.

10. the first information includes second range information, the second range information includes a range to which a third MSD value belongs, the third MSD value is a difference between the first MSD value and the second MSD value, the first MSD value is the MSD value of the terminal for the first band combination, the second MSD value is a predefined MSD value for the first band combination, and the first MSD value is smaller than the second MSD value; 9. The method according to any one of claims 1 to 8.

11. the first information includes the first MSD value, or the first information includes the third MSD value, the third MSD value being a difference between the first MSD value and the second MSD value, the first MSD value being the MSD value of the terminal for the first band combination, the second MSD value being a predefined MSD value for the first band combination, and the first MSD value being smaller than the second MSD value; 9. The method according to any one of claims 1 to 8.

12. The first information includes first behavioral information and / or second behavioral information, and the first behavioral information indicates that the network schedules uplink transmissions on a single carrier or a single band; the second behavioral information indicates that the network does not simultaneously schedule uplink and downlink transmissions on the first band combination, or the second behavioral information indicates that an interval between uplink and downlink transmissions scheduled by the network on the first band combination is greater than or equal to a fifth threshold.

12. The method according to any one of claims 1 to 11.

13. the first information includes simultaneous transmission and reception capability indication information, and the simultaneous transmission and reception capability indication information indicates that the first band combination supports simultaneous transmission and reception, or the simultaneous transmission and reception capability indication information indicates that the first band combination does not support simultaneous transmission and reception.

13. The method according to any one of claims 1 to 12.

14. If the first MSD value is greater than or equal to the first threshold, the simultaneous transmission and reception capability indication information indicates that the first band combination does not support simultaneous transmission and reception; If the first MSD value is less than the first threshold, the simultaneous transmission and reception capability indication information indicates that the first band combination supports simultaneous transmission and reception; If the second MSD value is greater than or equal to a fourth threshold, the simultaneous transmission and reception capability indication indicates that the first band combination does not support simultaneous transmission and reception; or If the second MSD value is smaller than a fourth threshold, the simultaneous transmission and reception capability indication information indicates that the first band combination supports simultaneous transmission and reception; and the first MSD value is the MSD value of the terminal for the first band combination, the second MSD value is the MSD value predefined for the first band combination, and the first MSD value is smaller than the second MSD value; The method of claim 13.

15. If the first MSD value is less than or equal to the first threshold, the simultaneous transmission and reception capability indication information indicates that the first band combination does not support simultaneous transmission and reception, and the first MSD value is the MSD value of the terminal for the first band combination. The method of claim 13.

16. the first information includes scaling factor information, the scaling factor information indicating a ratio of a transmission power change value of the terminal to the third MSD value, the third MSD value being a difference between the first MSD value and the second MSD value, the first MSD value being the MSD value of the terminal for the first band combination, the second MSD value being the MSD value predefined in the first band combination, and the first MSD value being smaller than the second MSD value; 16. The method of any one of claims 1 to 15.

17. A communication device comprising modules adapted to carry out the method of any one of claims 1 to 16.

18. 17. A communications device comprising a processor, the processor coupled to a memory, the memory configured to store a program or instructions, the program or instructions being executed by the processor enabling the communications device to perform the method of any one of claims 1 to 16.

19. A chip comprising a processor, the processor being configured to read and execute a computer program stored in a memory to perform the method of any one of claims 1 to 16.

20. 17. A computer-readable storage medium storing instructions that, when executed on a computer, enable the computer to perform the method of any one of claims 1 to 16.

Images