Communication method and communication apparatus

Abstract

The present application relates to the field of communications, and provides a communication method and a communication apparatus, which can enable a network device to determine, on the basis of information reported by a terminal device, whether to configure a specific spectrum combination for the terminal device. The method comprises: sending first information to a network device, the first information being used for indicating a first spectrum combination; and sending second information to the network device, the second information being used for indicating one or more of the following: a first maximum sensitivity degradation (MSD) level corresponding to the first spectrum combination, a first MSD type corresponding to the first spectrum combination, a first MSD order of the first MSD type, or a category of the first spectrum combination, wherein: there is a mapping relationship between the first MSD level and a first MSD value range, and the first MSD value range comprises an MSD value of the first spectrum combination; or there is a mapping relationship between the first MSD level and a first MSD value, and the first MSD value is an MSD value of the first spectrum combination.

Description

Communication method and communication apparatus

[0001] The present application claims priority from the Chinese patent application No. 202411101082.9 filed on August 9, 2024, and entitled "Communication method and communication apparatus", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] Embodiments of the present application relate to the field of communication, in particular to a communication method and a communication apparatus in the field of communication. BACKGROUND

[0003] The reception sensitivity can be used to indicate the capability of the terminal device to receive a downlink signal, which can be measured by a signal-to-noise ratio (SNR) or a received signal strength (or a signal reception power), etc. In the presence of interference or noise, such as intermodulation distortion, harmonic distortion, etc., the reception sensitivity of the terminal device will decrease. The sensitivity degradation can be used to indicate the degree of decrease in the reception sensitivity of the terminal device. The maximum sensitivity degradation (MSD) can be used to indicate the maximum amount of decrease in the reception sensitivity of the terminal device under certain conditions.

[0004] In order to improve system performance, increase data transmission rate or enhance signal reliability, spectrum combination can be performed by carrier aggregation (CA), dual connectivity (DC) or supplementary uplink (SUL) technology, etc. Different spectrum combinations can result in different MSDs of the terminal device, thereby having different impacts on the capability of the terminal device to receive a signal. Therefore, the network device can determine whether to configure the spectrum combination based on the MSD corresponding to the spectrum combination.

[0005] However, the network device can not be able to determine whether to configure a specific spectrum combination for the terminal device. SUMMARY

[0006] The present application provides a communication method and a communication apparatus, which can enable the network device to determine whether to configure a specific spectrum combination for the terminal device based on the information reported by the terminal device.

[0007] In a first aspect, a communication method is provided. The method comprises: sending, to a network device, first information, the first information being used to indicate a first spectrum combination; and sending, to the network device, second information, the second information being used to indicate one or more of: a first maximum sensitivity degradation (MSD) level corresponding to the first spectrum combination; a first MSD type corresponding to the first spectrum combination; a first MSD order of the first MSD type; or a category of the first spectrum combination, wherein the category of the first spectrum combination is related to frequency ranges to which at least two frequency bands in the first spectrum combination belong respectively, the at least two frequency bands generating a first MSD value of the first spectrum combination; the first MSD type, the first MSD order, and the category of the first spectrum combination are associated with the first MSD level; wherein the first MSD level has a mapping relationship with a first MSD value interval, the first MSD value interval containing the first MSD value; or the first MSD level has a mapping relationship with the first MSD value, the first MSD value being the first MSD value.

[0008] In a possible implementation, the method is performed by a first communication apparatus. The first communication apparatus can be a terminal device or a chip or circuit applied to a terminal device.

[0009] The first MSD type, the first MSD order, and the category of the first spectrum combination being associated with the first MSD level can also be understood as one or more of the first MSD type, the first MSD order, and the category of the first spectrum combination having a corresponding relationship with the first MSD level.

[0010] In the communication method, the network device can determine the first MSD level based on the second information. In this way, in combination with the first MSD value interval or the first MSD value mapped by the first MSD level, the network device can determine that the MSD value of the first spectrum combination is the first MSD value, or that the MSD value of the first spectrum combination is in the first MSD value interval. Thus, the network device can determine whether to configure the first spectrum combination for the terminal device based on the first spectrum combination reported by the terminal device and the first MSD level or information related to the first MSD.

[0011] For example, in a case where the network device determines that the MSD value of the first spectrum combination is small, or determines that the MSD value in the first MSD value interval is small, the first spectrum combination has a small impact on the signal receiving capability of the terminal device, and the network device can configure the first spectrum combination for the terminal device; otherwise, the network device can not configure the first spectrum combination for the terminal device.

[0012] In some embodiments of the first aspect, the first MSD level belongs to a first MSD level set, the first MSD value interval belongs to a first MSD value interval set, the first MSD level set and the first MSD value interval set have a first mapping relationship, and the first mapping relationship comprises a mapping relationship between the first MSD level and the first MSD value interval; wherein the first mapping relationship is predefined or preconfigured, the first MSD level set comprises at least one MSD level, and the first MSD value interval set comprises at least one MSD value interval; or,

[0013] The first MSD value belongs to a first MSD value set, the first MSD level set and the first MSD value set have a second mapping relationship, and the second mapping relationship comprises a mapping relationship between the first MSD level and the first MSD value; wherein the second mapping relationship is predefined or preconfigured, and the first MSD value set comprises at least one MSD value.

[0014] The first mapping relationship between the first MSD level set and the first MSD value interval set can also be understood as: each MSD value interval in the first MSD value interval set corresponds to one MSD level in the first MSD level set. The second mapping relationship between the first MSD level set and the first MSD value set can also be understood as: each MSD value in the first MSD value set corresponds to one MSD level in the first MSD level set.

[0015] Optionally, part of the first MSD levels have the first mapping relationship with the first MSD value interval set, and another part of the first MSD levels have a mapping relationship with at least one MSD value. Alternatively, part of the first MSD levels have the second mapping relationship with the first MSD value set, and another part of the first MSD levels have a mapping relationship with at least one MSD value interval. For example, in Table 7 below, part of the MSD levels have a mapping relationship with the MSD value, and part of the MSD levels have a mapping relationship with the MSD value interval.

[0016] In this way, the network device can determine the first MSD value or the first MSD value interval corresponding to the first MSD level based on the first mapping relationship or the second mapping relationship, and can further determine that the MSD value of the first spectrum combination is the first MSD value or that the MSD value of the first spectrum combination is in the first MSD value interval.

[0017] In some embodiments of the first aspect, there is a first correspondence relationship between the category of the first spectrum combination, the first MSD level, and the MSD order of the intermodulation distortion MSD, and the first correspondence relationship is predefined or preconfigured.

[0018] The MSD order of the intermodulation distortion MSD can also be understood as a first MSD order when the first MSD type is IMD. That is, in the case where the MSD type corresponding to the first spectrum combination is IMD, the first MSD order of the IMD corresponding to the first spectrum combination can also be referred to as the MSD order of the intermodulation distortion MSD.

[0019] It can be understood that for the intermodulation distortion MSD, the MSD value is greatly affected by the IMD order and the category of the spectrum combination. Therefore, the protocol can predefine or the network device can preconfigure the first correspondence relationship.

[0020] In this way, the network device can determine the first MSD level corresponding to the first spectrum combination based on the category of the first spectrum combination and the MSD order of the intermodulation distortion MSD.

[0021] In combination with the first aspect, in some embodiments of the first aspect, the frequency range includes a first range, a second range, and a third range, frequencies in the first range are less than or equal to a first threshold value, frequencies in the second range are greater than the first threshold value and less than or equal to a second threshold value, frequencies in the third range are greater than the second threshold value, and the first range, the second range, and the third range are predefined or preconfigured.

[0022] The first range can also be referred to as low frequency, the second range can also be referred to as medium frequency, and the third range can also be referred to as high frequency. The first range, the second range, and the third range are predefined or preconfigured can also be replaced by: the first threshold value and the second threshold value are predefined or preconfigured.

[0023] In this way, the terminal device can determine the category of the first spectrum combination based on the above spectrum range, and then report the category of the first spectrum combination, so that the network device determines the first MSD level corresponding to the first spectrum combination based on the category of the first spectrum combination.

[0024] In combination with the first aspect, in some embodiments of the first aspect, the first spectrum combination includes a first frequency band and a second frequency band, and in the case where the frequency points of the first frequency band belong to the first range and the frequency points of the second frequency band belong to the second range, the category of the first spectrum combination is a first category corresponding to the first range and the second range.

[0025] The first frequency band and the second frequency band can each refer to one or more frequency bands.

[0026] In this way, the network device can determine the category of the first spectrum combination based on the frequency range corresponding to each frequency band in the first spectrum combination, and the category of the spectrum combination can reflect the difference in frequency between the first frequency band and the second frequency band.

[0027] In some embodiments of the first aspect, the second correspondence is predefined by a protocol or preconfigured by the network device, and the second correspondence is a correspondence between a category of the first spectrum combination, a first MSD level set, and a first MSD value interval set and / or a first MSD value set; the first MSD level set includes at least one MSD level, the first MSD value interval set includes at least one MSD value interval, the first MSD value set and the second MSD value set each include at least one MSD value, and the first correspondence includes a mapping relationship between the first MSD level and the first MSD value or the first MSD value interval.

[0028] The second correspondence can also be understood as a first mapping relationship and / or a second mapping relationship corresponding to the category of the first spectrum combination. The first mapping relationship and / or the second mapping relationship corresponding to the category of the first spectrum combination can be the same or different.

[0029] The MSD values corresponding to different categories of spectrum combinations can be quite different. By predefining or preconfiguring the second correspondence by a protocol or a network device, the MSD values or MSD value intervals corresponding to the MSD levels are more suitable for the categories of spectrum combinations.

[0030] In some embodiments of the first aspect, the fourth correspondence is predefined by a protocol or preconfigured by the network device, and the fourth correspondence is a correspondence between a first MSD type, a first MSD level set, and a first MSD value interval set and / or a first MSD value set; the first MSD level set includes at least one MSD level, the first MSD value interval set includes at least one MSD value interval, the first MSD value set includes at least one MSD value, and the fourth correspondence includes a mapping relationship between the first MSD level and the first MSD value or the first MSD value interval.

[0031] The fourth correspondence can also be understood as a first mapping relationship and / or a second mapping relationship corresponding to the first MSD type. The first mapping relationship and / or the second mapping relationship corresponding to the first MSD type can be the same or different.

[0032] The MSD values corresponding to different MSD types can be quite different. By predefining or preconfiguring the fourth correspondence by a protocol or a network device, the MSD values or MSD value intervals corresponding to the MSD levels are more suitable for the MSD types.

[0033] In a possible implementation of the first aspect, the fourth correspondence is predefined by a protocol or preconfigured by the network device, and the fifth correspondence is a correspondence between the first MSD order, the first MSD level set, and the first MSD numerical interval set and / or the first MSD numerical set, wherein the first MSD level set includes at least one MSD level, the first MSD numerical interval set includes at least one MSD numerical interval, the first MSD numerical set includes at least one MSD numerical value, and the fifth correspondence includes a mapping relationship between the first MSD level and the first MSD numerical value or the first MSD numerical interval.

[0034] The fifth correspondence can also be understood as the first mapping relationship and / or the second mapping relationship corresponding to the first MSD order. The first mapping relationship and / or the second mapping relationship corresponding to the first MSD type can be the same or different, depending on the first MSD order.

[0035] Since the MSD numerical values corresponding to different MSD orders can be quite different, the fifth correspondence is predefined by a protocol or preconfigured by the network device, so that the MSD numerical value or the MSD numerical interval corresponding to the MSD level is more suitable for each MSD order.

[0036] In a second aspect, another communication method is provided, which includes: receiving first information from a terminal device, the first information being used to indicate a first spectrum combination; and receiving second information from the terminal device, the second information being used to indicate one or more of the following: a first MSD level corresponding to the first spectrum combination; a first MSD type corresponding to the first spectrum combination; a first MSD order of the first MSD type; or a category of the first spectrum combination, wherein the category of the first spectrum combination is related to frequency ranges to which at least two frequency bands in the first spectrum combination belong respectively, the at least two frequency bands generate a first MSD numerical value of the first spectrum combination; the first MSD type, the first MSD order, and the category of the first spectrum combination are associated with the first MSD level; wherein the first MSD level is in a mapping relationship with a first MSD numerical interval, and the first MSD numerical interval includes the MSD numerical value of the first spectrum combination; or the first MSD level is in a mapping relationship with a first MSD numerical value, and the first MSD numerical value is the MSD numerical value of the first spectrum combination. The first spectrum combination is configured for the terminal device according to the first MSD level, or the first spectrum combination is not configured for the terminal device.

[0037] In a possible implementation, the method is performed by a second communication apparatus. The second communication apparatus can be a network device or a chip or circuit applied to a network device.

[0038] With reference to the second aspect, in some embodiments of the second aspect, the first MSD level belongs to a first MSD level set, the first MSD value interval belongs to a first MSD value interval set, the first MSD level set and the first MSD value interval set have a first mapping relationship, and the first mapping relationship comprises a mapping relationship between the first MSD level and the first MSD value interval; wherein the first mapping relationship is predefined or preconfigured, the first MSD level set comprises at least one MSD level, and the first MSD value interval set comprises at least one MSD value interval; or,

[0039] The first MSD value belongs to a first MSD value set, the first MSD level set and the first MSD value set have a second mapping relationship, and the second mapping relationship comprises a mapping relationship between the first MSD level and the first MSD value; wherein the second mapping relationship is predefined or preconfigured, and the first MSD value set comprises at least one MSD value.

[0040] With reference to the second aspect, in some embodiments of the second aspect, there is a first correspondence relationship between the category of the first spectrum combination, the first MSD level, and the MSD order of the intermodulation distortion MSD; and the first correspondence relationship is predefined or preconfigured.

[0041] With reference to the second aspect, in some embodiments of the second aspect, the frequency range comprises a first range, a second range, and a third range, the frequencies in the first range are less than or equal to a first threshold value, the frequencies in the second range are greater than the first threshold value and less than or equal to a second threshold value, the frequencies in the third range are greater than the second threshold value, and the first range, the second range, and the third range are predefined or preconfigured.

[0042] With reference to the second aspect, in some embodiments of the second aspect, the first spectrum combination comprises a first frequency band and a second frequency band, and in a case where the frequency points in the first frequency band belong to the first range and the frequency points in the second frequency band belong to the second range, the category of the first spectrum combination is a first category corresponding to the first range and the second range.

[0043] With reference to the second aspect, in some embodiments of the second aspect, the method further comprises: determining, according to the first correspondence relationship, the category of the first spectrum combination indicated by the second information, and the MSD order of the intermodulation distortion MSD, the first MSD level corresponding to the first spectrum combination.

[0044] The MSD order of the intermodulation distortion MSD can also be understood as the first MSD order when the first MSD type is the intermodulation distortion MSD.

[0045] Optionally, the network device determines, based on the first spectrum combination indicated by the first information, the MSD order of the intermodulation distortion MSD of the first spectrum combination.

[0046] With reference to the second aspect, in some embodiments of the second aspect, the method further includes: determining, according to the first MSD level and a mapping relationship between the first MSD level and a first MSD value interval, that the MSD value of the first spectrum combination is in the first MSD value interval; or determining, according to the first MSD level and a mapping relationship between the first MSD level and a first MSD value, that the MSD value of the first spectrum combination is the first MSD value.

[0047] With reference to the second aspect, in some embodiments of the second aspect, the method further includes: determining, according to the first MSD level, to configure the first spectrum combination for the terminal device or not to configure the first spectrum combination.

[0048] In a third aspect, a communication apparatus is provided, which is configured to execute the method in any possible implementation of the first aspect or the second aspect. Specifically, the communication apparatus includes modules for performing the method in any possible implementation of the first aspect or the second aspect.

[0049] In a fourth aspect, another communication apparatus is provided, which includes a processor and a memory coupled to the processor. The processor is configured to execute instructions stored in the memory to implement the method in any possible implementation of the first aspect or the second aspect. Optionally, the communication apparatus further includes the memory. Optionally, the communication apparatus further includes a communication interface, and the processor is coupled to the communication interface.

[0050] In one implementation, the communication apparatus is a terminal device or a network device. When the communication apparatus is the terminal device or the network device, the communication interface can be a transceiver, or an input / output interface.

[0051] In another implementation, the communication apparatus is a chip applicable to the terminal device or the network device. When the communication apparatus is the chip applicable to the terminal device or the network device, the communication interface can be an input / output interface.

[0052] In a fifth aspect, a processor is provided, which includes an input circuit, an output circuit and a processing circuit. The processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor executes the method in any possible implementation of the first aspect or the second aspect.

[0053] In the implementation process, the processor can be a chip, the input circuit can be an input pin, the output circuit can be an output pin, and the processing circuit can be a transistor, a gate circuit, a flip-flop, and various logic circuits. The input signal received by the input circuit can be received and input by, for example but not limited to, a receiver, the output signal output by the output circuit can be output to and transmitted by, for example but not limited to, a transmitter, and the input circuit and the output circuit can be the same circuit which is used as the input circuit and the output circuit at different times. The embodiments of the present application do not limit the specific implementation of the processor and various circuits.

[0054] In a sixth aspect, a communication apparatus is provided, which includes a processor and a memory. The processor is configured to read instructions stored in the memory, and can receive signals through a receiver and transmit signals through a transmitter to perform the method in any possible implementation manner of the first aspect or the second aspect.

[0055] Optionally, the processor is one or more, and the memory is one or more.

[0056] Optionally, the memory can be integrated with the processor, or the memory and the processor can be separately arranged.

[0057] In the implementation process, the memory can be a non-transitory memory, for example, a read only memory (ROM), which can be integrated with the processor on the same chip or arranged separately on different chips. The type of the memory and the arrangement of the memory and the processor are not limited in the present application.

[0058] It should be understood that the related data interaction process, for example, the process of transmitting the indication information can be the process of outputting the indication information from the processor, and the process of receiving the capability information can be the process of receiving the input capability information by the processor. Specifically, the processed output data can be output to the transmitter, and the input data received by the processor can come from the receiver. The transmitter and the receiver can be collectively referred to as a transceiver.

[0059] The communication apparatus in the sixth aspect can be a chip, and the processor can be implemented by hardware or software. When implemented by hardware, the processor can be a logic circuit or an integrated circuit. When implemented by software, the processor can be a general-purpose processor which reads software codes stored in the memory to implement the processor. The memory can be integrated in the processor or exist independently.

[0060] In a seventh aspect, a computer program product is provided, which includes a computer program (which can also be referred to as code or instructions) that, when executed by a computer, causes the computer to perform the method in any possible implementation of the first aspect or the second aspect.

[0061] In an eighth aspect, a computer-readable storage medium is provided, which stores a computer program (which can also be referred to as code or instructions) that, when executed on a computer, causes the computer to perform the method in any possible implementation of the first aspect or the second aspect. BRIEF DESCRIPTION OF DRAWINGS

[0062] FIG. 1 is a schematic diagram of a first communication system to which embodiments of the present application are applicable;

[0063] FIG. 2 is a schematic diagram of a second communication system to which embodiments of the present application are applicable;

[0064] FIG. 3 is a schematic diagram of a communication method provided by embodiments of the present application;

[0065] FIG. 4 is a schematic block diagram of a communication apparatus provided by embodiments of the present application;

[0066] FIG. 5 is a schematic block diagram of another communication apparatus provided by embodiments of the present application;

[0067] FIG. 6 is a schematic block diagram of an O-RAN system provided by embodiments of the present application. DETAILED DESCRIPTION

[0068] The technical solutions in the present application will be described below with reference to the accompanying drawings.

[0069] In the embodiments of the present application, the terms “first”, “second”, etc. are used to distinguish the same or similar items with basically the same functions and effects. For example, the first value and the second value are merely used to distinguish different values, and do not limit the order. Those skilled in the art can understand that the terms “first”, “second”, etc. do not limit the quantity and execution order, and the terms “first”, “second”, etc. also do not necessarily mean different.

[0070] It should be noted that in the embodiments of the present application, the words “exemplarily” or “for example” are used to represent an example, illustration or explanation. Any embodiment or design scheme described as “exemplarily” or “for example” in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the words “exemplarily” or “for example” are used to present the relevant concepts in a specific manner.

[0071] In the embodiments of the present application, "at least one" means one or more, and "multiple" means two or more. The "and / or" describes the association relationship of the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can represent the following three cases: A exists alone, A and B exist together, and B exists alone, where A and B can be singular or plural. The character "or" generally represents the relationship between the preceding and following associated objects as "or". "At least one of the following" or similar expressions means any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, or c can represent a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c can be single or multiple.

[0072] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD), a worldwide interoperability for microwave access (WiMAX) communication system, a 5th generation (5G) system or new radio (NR), a future communication system, and the like.

[0073] The terminal device in the embodiments of the present application can also be referred to as a user equipment (UE), a mobile station (MS), a mobile terminal (MT), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile terminal, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user apparatus, and the like.

[0074] The terminal device can be a device that provides voice / data connectivity to a user, for example, a handheld device with wireless connection function, a vehicle-mounted device, etc. At present, some examples of terminal devices include: a mobile phone, a tablet computer, a notebook computer, a palm 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 smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolved public land mobile network (PLMN), etc., which are not limited in the present application.

[0075] By way of example, and without limitation, in the present application, the terminal device can be a terminal device in an internet of things (IoT) system. The internet of things is an important component of future information technology development, and its main technical feature is to connect objects through communication technology and network, so as to realize the intelligent network of man-machine interconnection and object-object interconnection. Illustratively, the terminal device in the embodiments of the present application can be a wearable device. The wearable device can also be referred to as a wearable smart device, which is a general term for smart devices that can be worn, such as glasses, gloves, watches, clothing, and shoes, which are designed and developed by applying wearable technology to daily wear. The wearable device is a portable device that can be directly worn on the body or integrated into the user's clothes or accessories. The wearable device is not only a hardware device, but also can realize powerful functions through software support and data interaction, cloud interaction. The general wearable smart device includes a full function, large size, and can realize complete or partial functions without relying on a smart phone, such as a smart watch or smart glasses, and only focuses on a certain application function, and needs to cooperate with other devices such as a smart phone, such as various smart wristbands, smart jewelry, and the like for monitoring vital signs.

[0076] By way of example, and without limitation, in the embodiments of the present application, the terminal device can also be a terminal device in machine type communication (MTC). In addition, the terminal device can also be a vehicle-mounted module, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit, etc. built-in as one or more components or units in a vehicle. The vehicle can implement the method provided in the present application by built-in vehicle-mounted module, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit, etc. Therefore, the embodiments of the present application can also be applied to the Internet of Vehicles, such as vehicle to everything (V2X), long term evolution-vehicle (LTE-V), vehicle-to-vehicle (V2V) technology, etc.

[0077] The network device involved in the present application can be a device in communication with a terminal device, which can also be referred to as an access network device or a radio access network device, which can be a transmission reception point (TRP), and can also be an evolved NodeB (eNB or eNodeB) in an LTE system, and can also be a home base station (for example, a home evolved NodeB or home Node B, HNB), a baseband unit (BBU), and can also be a wireless controller in a cloud radio access network (CRAN) scenario, or the network device can be a relay station, an access point, a vehicle-mounted device, a wearable device, and a network device in a 5G network or a network device in a future evolved PLMN network, and can also be an access point (AP) in a WLAN, and can also be a gNB in an NR system, and the above network device can also be a city base station, a micro base station, a pico base station, a femto base station, and the like, and the present application does not limit this.

[0078] First, some technical terms and symbols involved in the present application are introduced.

[0079] 1. Carrier aggregation (CA): a technology that combines multiple carrier frequency bands together to increase the total bandwidth and improve data transmission rate. Through this technology, devices can simultaneously use multiple frequency bands for data transmission, thereby improving data throughput and spectral efficiency.

[0080] 2. Dual connectivity (DC): a technology that allows a terminal device to connect to two different network devices (such as LTE and 5G NR) at the same time to achieve higher data rates and more reliable connections. DC technology is particularly important in 5G networks, as it allows terminal devices to seamlessly switch between LTE and 5G networks and share resources.

[0081] 3. Supplementary uplink (SUL): a technology used to enhance uplink performance. Through SUL technology, terminal devices can perform uplink data transmission on additional frequency bands outside the main frequency band, thereby improving the capacity and coverage of the uplink.

[0082] 4. Maximum sensitivity degradation (MSD): can refer to the maximum decrease in receiver sensitivity (or reception sensitivity) of a terminal device under certain conditions.

[0083] The reception sensitivity is the ability of the receiver of the terminal device to detect the minimum available signal, usually measured in terms of signal-to-noise ratio (SNR) or received signal strength. The sensitivity degradation means that the ability of the receiver of the terminal device to detect weak signals in the presence of interference or noise and the like is reduced.

[0084] It should be understood that the received signal strength can also be understood as the power of the received signal, and the unit can be, for example, decibel milliwatt (dBm), which is not specifically limited in the present application.

[0085] Based on different interference reasons, MSD can be divided into various types: inter-modulation distortion (IMD) MSD, harmonic MSD, harmonic mixing MSD, and cross band isolation MSD, and the like.

[0086] Among them, the inter-modulation distortion (IMD) MSD can refer to the MSD caused by inter-modulation distortion; the harmonic MSD can refer to the MSD caused by uplink high-order harmonic; the harmonic mixing MSD can refer to the MSD caused by harmonic mixing; and the cross band isolation MSD can refer to the MSD caused by cross band isolation.

[0087] 5. Inter-modulation (IMD): refers to when two or more signals of different frequencies pass through a nonlinear system (such as a power amplifier, a mixer, or other nonlinear elements), new frequency components are generated. These new frequency components are linear combinations of the original signal frequencies, for example, assuming that the frequencies of the original signals are f1 and f2, then the new frequencies can be f1 ± f2, 2 × f1 ± f2 or 2 × f2 ± f1, etc. These new frequency components can fall within the receive frequency band, interfere with the transmission of the downlink signal, for example, reduce the signal quality, increase the bit error rate, reduce the reception sensitivity of the terminal device, and the like. Thus, the system performance is degraded.

[0088] Exemplarily, in the scenarios of LTE-NR dual connectivity (EN-DC) or uplink carrier aggregation (UL CA), the combination of the dual uplink frequency bands can generate new frequency components, and the new frequency components can fall within the receive bandwidth, thereby causing interference.

[0089] The new frequency components described above can also be referred to as intermodulation products (IM products) and the like, and can be generated by combination of multiple original frequency signals. The order (or intermodulation distortion order or MSD order) can be used to indicate the number of original frequency signals that generate the intermodulation products.

[0090] It should be understood that the intermodulation distortion order can include, for example, second-order intermodulation distortion (IMD 2): a distortion component generated by a quadratic combination of two signal frequencies falls within the downlink frequency band, which can be referred to as a second-order intermodulation product, such as f1±f2, and the like; third-order intermodulation distortion (IMD 3): a distortion component generated by a cubic combination of two signal frequencies falls within the downlink frequency band, which can be referred to as a third-order intermodulation product, such as 2×f1±f2 or 2×f2±f1, and the like; higher-order intermodulation distortion: for example, fourth-order intermodulation distortion IMD 4, i.e., a distortion component generated by a quartic combination of two signal frequencies falls within the downlink frequency band, which can be referred to as a fourth-order intermodulation product; fifth-order intermodulation distortion IMD 5, i.e., a distortion component generated by a quintic combination of two signal frequencies falls within the downlink frequency band, which can be referred to as a fifth-order intermodulation product, and the like.

[0091] For example, in LTE-NR dual connectivity or dual uplink frequency band combination such as UL CA, the second-order intermodulation product, the third-order intermodulation product, the fourth-order intermodulation product, or the fifth-order intermodulation product of the two uplink frequency bands falls within the downlink frequency band.

[0092] It should be understood that the intermodulation product falling within the downlink frequency band receiving signal band can also be understood as that the frequency points of the two uplink frequency bands can be calculated to obtain the frequency point of the n-order intermodulation, and the frequency point is within the range of the downlink receiving frequency band of the terminal device, and n is an integer greater than 1. The downlink receiving frequency band can be the downlink frequency band corresponding to any one of the two uplink frequency bands that generate intermodulation. Alternatively, when the uplink frequency band combination is more than two, the downlink receiving frequency band can also refer to the downlink receiving frequency band corresponding to a third frequency band other than the two concurrent uplink frequency bands among the more than two uplink frequency bands.

[0093] It should be noted that in the embodiments of the present application, the intermodulation distortion can also be referred to as intermodulation interference, and the like, which is not limited in the present application.

[0094] 6. Second-order intermodulation point (IP 2): a parameter used to describe the second-order intermodulation distortion characteristics of a terminal device. IP 2 represents the intersection point of the power of the second-order intermodulation product and the power of the input signal in the case where the two are in a linear relationship.

[0095] Third-order intermodulation point (IP 3): a parameter used to describe the third-order intermodulation distortion characteristics of a terminal device. IP 3 represents the intersection point of the power of the third-order intermodulation product and the power of the input signal in the case where the two are in a linear relationship.

[0096] Fourth-order intermodulation point (IP 4): a parameter used to describe the fourth-order intermodulation distortion characteristics of a terminal device. IP 4 represents the intersection point of the power of the fourth-order intermodulation product and the power of the input signal in the case where the two are in a linear relationship.

[0097] Fifth-order intermodulation point (IP 5): a parameter used to describe the fifth-order intermodulation distortion characteristics of a terminal device. IP 5 represents the intersection point of the power of the fifth-order intermodulation product and the power of the input signal in the case where the two are in a linear relationship.

[0098] 7. Harmonic: when a signal passes through a nonlinear system, new frequency components with frequencies that are integer multiples of the original signal frequency are generated, and these new frequency components fall within the receive frequency band, thereby causing interference. For example, if the original signal frequency is f, then the new frequency components can be: a second harmonic (H2) of 2 x f, a third harmonic (H3) of 3 x f, or higher-order harmonics, such as a fourth harmonic of 4 x f or a fifth harmonic of 5 x f, and so on. Harmonics can cause spectral pollution and affect system performance.

[0099] It should be understood that a harmonic can also be referred to as harmonic distortion or harmonic interference, and the like, which are not specifically limited in the present application.

[0100] Exemplarily, the second harmonic, the third harmonic, or the higher-order harmonic of the uplink frequency band can fall within the downlink frequency band, thereby causing interference. The higher-order harmonic can refer to a fourth harmonic or a fifth harmonic, and so on.

[0101] 8. Harmonic mixing: refers to the original signal frequency, or new frequency components (such as second harmonic, third harmonic, fourth harmonic, or fifth harmonic, etc.) generated by the original signal frequency, which may fall within the receive frequency band, thus causing interference, resulting in the terminal device's reception sensitivity being reduced.

[0102] For example, the local oscillator harmonic of the uplink frequency band (i.e. the original uplink frequency), the second harmonic, the third harmonic, or the high-order harmonic, may fall within the second harmonic, the third harmonic, or the high-order harmonic of the downlink frequency band, thus causing interference.

[0103] Harmonic mixing is a form of non-linear distortion, which usually occurs in mixers and amplifiers.

[0104] It should be understood that harmonic mixing can also be referred to as harmonic mixing interference or harmonic mixing interference, etc., which is not specifically limited in the present application.

[0105] 8. Cross band isolation: refers to the signal isolation degree between different frequency bands in a multi-band system. Good cross band isolation can prevent the signal of one frequency band from interfering with the signal of another frequency band, thus improving the overall performance of the system. If the cross band isolation is poor, a strong signal in one frequency band may interfere with a weak signal in another frequency band through non-linear effects (such as IMD or harmonic mixing, etc.), resulting in the terminal device's reception sensitivity being reduced.

[0106] 10. Subcarrier spacing (SCS): is an important parameter in OFDM systems. In 5G NR, the subcarrier spacing can be flexibly adjusted according to different application scenarios and requirements. In the uplink frequency band, selecting the appropriate subcarrier spacing can improve spectral efficiency, reduce latency, and enhance the system's anti-multipath capability, thus meeting the needs of different application scenarios.

[0107] 11. Power amplifier (PA): is mainly used to amplify the power of the signal so that the signal can be effectively transmitted to a farther distance or drive the load.

[0108] Forward power amplifier (PA Forward): refers to the power transmitted from the output of the power amplifier to the load (such as an antenna or other devices). Forward power is the main output of the power amplifier, indicating the effective output power of the power amplifier after amplifying the input signal.

[0109] Reverse power amplifier (PA Reversed): refers to the power reflected from the load back to the power amplifier. Reverse power is usually caused by load mismatch (such as antenna impedance mismatch), and part of the power is not absorbed by the load but reflected back to the amplifier.

[0110] 12. Duplexer: A device used to transmit and receive signals simultaneously on the same antenna. It can separate the transmit and receive signals to avoid interference with each other.

[0111] 13. Triplexer: A device that can separate or combine three different frequency bands of signals to the same antenna. It can handle three different frequencies of signals at the same time.

[0112] 14. Low Noise Amplifier (LNA): An electronic amplifier used to amplify weak signals with very low noise figure. LNA is used in the early stage of receiving signals (such as after the antenna) to minimize the noise introduced while amplifying the signal, thereby improving the signal-to-noise ratio (SNR) of the signal.

[0113] 15. Adjacent Channel Leakage Ratio (ACLR): A key indicator used to evaluate the performance of wireless communication systems. ACLR can refer to the ratio of the power of a measured signal within its allocated frequency band to the leakage power in adjacent frequency bands, usually expressed in decibels (dB). ACLR can represent the degree to which a signal leaks outside its allocated frequency band into adjacent frequency bands.

[0114] In a wireless communication system, ACLR is an important parameter to measure the impact of the transmitter on adjacent channel interference. A higher ACLR indicates less leakage and better signal isolation, thereby reducing interference to adjacent channels and improving the overall system performance and spectral efficiency.

[0115] To facilitate understanding of the embodiments of the present application, first, a communication system suitable for the embodiments of the present application is described in detail in conjunction with FIG. 1 and FIG. 2.

[0116] FIG. 1 is a schematic diagram of a communication system 100 applied in the embodiments of the present application. The communication system 100 can include at least one core network device, such as the core network device 110 shown in FIG. 1; the communication system 100 can also include at least one access network device, such as the access network device 120 shown in FIG. 1; the communication system 100 can also include at least one terminal device, such as the terminal device 130 shown in FIG. 1.

[0117] It should be understood that the core network device 110 and the access network device 120 can be independent and different physical devices, or can be integrated on the same physical device, or can be a physical device integrated with part of the functions of the core network device 110 and part of the functions of the access network device 120. The terminal device 130 can be fixed in position or mobile.

[0118] The terminal device 130 is 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.

[0119] The access network device 120 and the terminal device 130 can communicate through a wireless link. In one possible case, the access network device 120 can serve as a transmitting end, and the terminal device 130 can serve as a receiving end. The access network device 120 sends a signal to the terminal device 130. In another possible case, the access network device 120 can serve as a receiving end, and the terminal device 130 can serve as a transmitting end. The terminal device 130 sends a signal to the access network device 120.

[0120] FIG. 1 exemplarily shows one core network device 110, one access network device 120, and one terminal device 130. Optionally, the communication system 100 can further include multiple core network devices, multiple access network devices, or multiple terminal devices, which are not limited in the embodiments of the present application.

[0121] For example, in addition to the terminal device 130, the communication system 100 can further include a terminal device 140, which can also be connected to the access network device 120 in a wireless or wired manner.

[0122] In addition, the communication system to which the embodiments of the present application are applicable can further include multiple access network devices. Exemplarily, as shown in FIG. 2, a communication system 200 includes at least one core network device, for example, the core network device 210 shown in FIG. 2; the communication system 200 can further include at least two access network devices, for example, the access network device 220 and the access network device 230 shown in FIG. 2; and the communication system 200 can further include at least one terminal device, for example, the terminal device 240 shown in FIG. 2.

[0123] The terminal device 240 is connected to the access network device 230 and the access network device 220 in a wireless manner, and the access network device 230 and the access network device 220 are connected to the core network device 210 in a wireless or wired manner.

[0124] It should be understood that the core network device 210, the access network device 230, and / or the access network device 220 can be independent and different physical devices, can be integrated on the same physical device, or can be a physical device integrated with part of the functions of the core network device 210 and part of the functions of the access network device 230 and / or the access network device 220. The terminal device 240 can be fixed in position or movable.

[0125] It should be noted that the access network device 230 and the access network device 220 can be used to provide different network services, for example, the access network device 230 is used to provide the terminal device 240 with LTE network services, and the access network device 220 is used to provide the terminal device 240 with 5G NR network services. In this case, it can also be understood that the terminal device 240 adopts a dual connectivity (DC) technology.

[0126] FIG. 2 exemplarily shows one core network device 210, two access network devices, i.e., an access network device 220 and an access network device 230, and one terminal device 240. Optionally, the communication system 200 can further include multiple core network devices or multiple terminal devices, or more access network devices. Exemplarily, the communication system 200 further includes a terminal device 250, which can be connected to the access network device 230 and / or the access network device 220 in a wireless manner, and the like. The embodiments of the present application are not limited in this regard.

[0127] The various communication devices in the above communication system 100 or the communication system 200, such as the core network device 110, the access network device 120, or the terminal device 130 in FIG. 1, or the core network device 210, the access network device 220, the access network device 230, and the terminal device 240 in the communication system 200, can be configured with multiple antennas. The multiple antennas can include at least one transmitting antenna for transmitting signals and at least one receiving antenna for receiving signals. In addition, each communication device additionally includes a transmitter chain and a receiver chain, which can include a plurality of components (such as a processor, a modulator, a multiplexer, a demodulator, a demultiplexer, or an antenna, etc.) related to signal transmission and reception, which can be understood by those skilled in the art. Therefore, the access network device and the terminal device can communicate through multi-antenna technology.

[0128] Optionally, the above communication system 100 or the communication system 200 can further include a network controller, a mobile management entity, and other network entities, and the embodiments of the present application are not limited in this regard.

[0129] It should also be understood that the method provided by the embodiments of the present application can be applied to various communication systems including a 5G new radio (NR) system, and the communication system 100 and the communication system 200 are only examples. The present application does not limit the specific architecture of the applicable system, nor the number and form of various devices included in each communication system.

[0130] To improve data throughput and spectrum efficiency, spectrum combination can be performed by one or several of the technologies of CA, DC or SUL at present. However, spectrum combination can affect the performance of terminal device receiving signals, i.e. reduce the receiving sensitivity of the terminal device. Based on this, the MSD can be used to represent the degree of influence of the receiving sensitivity of the terminal device at present. Moreover, the MSD can also reflect the harmonic suppression capability of the power amplifier and filter of the terminal device, the linear capability of the power amplifier, channel and filter, the capability of antenna isolation and the capability of printed circuit board (PCB) isolation. That is, the MSD of the terminal device is related to the performance of the power amplifier, filter and PCB and other devices arranged in the terminal device. The greater the MSD, the greater the influence of spectrum combination on the receiving sensitivity of the terminal device, i.e. the greater the degree of reduction of the receiving sensitivity; the smaller the MSD, the smaller the influence of spectrum combination on the receiving sensitivity of the terminal device, i.e. the smaller the degree of reduction of the receiving sensitivity.

[0131] At present, the MSD corresponding to a plurality of spectrum combinations is defined in the 3GPP protocol. The MSD corresponding to the spectrum combinations shown in Tables 1 to 4 is taken as an example below to be described in detail.

[0132] Table 1 shows the harmonic MSD of the terminal device. As shown in Table 1, the second harmonic of the uplink frequency band n1 directly falls into the local oscillator harmonic (i.e. the original frequency of the downlink frequency band n77) of the downlink frequency band n77, thereby causing interference to the downlink signal transmission.

[0133] Wherein, n1 in the frequency band n1 can be understood as the identification of the frequency band, and n77 in the frequency band n77 can be understood as the identification of the frequency band. Exemplarily, assuming that the frequency of the uplink frequency band n1 is 2.1 GHz, then the second harmonic of the uplink frequency band n1 is 4.2 GHz. Since the local oscillator harmonic of the downlink frequency band n77 is 4.2 GHz. Therefore, the second harmonic of the uplink frequency band n1 falls into the local oscillator harmonic of the downlink frequency band n77, causing interference to the downlink signal transmission.

[0134] In the case that the uplink (UL) bandwidth (BW) is 5MHz, the subcarrier spacing (SCS) of the UL frequency band is 15kHz, the uplink resource block (RB) allocation is 25 RBs (the index RBstart of the starting RB in the 25 RBs is 0), the downlink bandwidth is 10MHz, and the UL and DL frequency center (Fc) condition is NOTE 2, the MSD is 23.9dB.

[0135] It should be understood that the center frequency can also be referred to as a frequency point or a center frequency point, etc., which refers to the middle point of a frequency band.

[0136] In the case where the UL bandwidth (bandwidth, BW) is 20MHz, the subcarrier spacing (SCS) of the UL frequency band is 15kHz, the uplink resource block (resource block, RB) allocation is 100 RBs (the index of the starting RB RBstart in the 100 RBs is 0), and the downlink bandwidth is 100MHz, the MSD is 13.8dB.

[0137] Table 1

[0138] Table 2 shows the harmonic mixing MSD of the terminal device. As shown in Table 2, the local oscillator harmonic of the uplink frequency band n1 falls into the third harmonic of the downlink frequency band n105; the local oscillator harmonic of the uplink frequency band n2 falls into the third harmonic of the downlink frequency band n71.

[0139] In the case where the UL bandwidth is 5MHz, the SCS of the UL frequency band is 15kHz, the uplink RB allocation is 25 RBs (the index of the starting RB RBstart in the 25 RBs is 0), and the downlink bandwidth is 5MHz, the local oscillator harmonic of the uplink frequency band n1 falls into the third harmonic of the downlink frequency band n105, and the harmonic mixing MSD of the terminal device is 26.8dB; the local oscillator harmonic of the uplink frequency band n2 falls into the third harmonic of the downlink frequency band n71, and the harmonic mixing MSD of the terminal device is 26.5dB.

[0140] Table 2

[0141] Table 3 shows the intermodulation distortion MSD of the terminal device when the spectrum combination is CA_n1-n3. As shown in Table 3, the third-order intermodulation product of the uplink frequency band n1 and the uplink frequency band n3 falls into the downlink frequency band, which can be the downlink frequency band corresponding to n1 or the downlink frequency band corresponding to n3.

[0142] Wherein, CA_n1-n3 refers to the uplink frequency band n1 and the uplink frequency band n3 of the carrier aggregation. Assuming that the frequency of the uplink frequency band n1 is f1 and the frequency of the uplink frequency band n3 is f2, the third-order intermodulation product of the uplink frequency band n1 and the uplink frequency band n3 can be, for example, 2×f1±f2 or 2×f2±f1, etc.

[0143] For the uplink frequency band n1, the UL Fc is 1950MHz, the UL and DL bandwidths are 5MHz, the uplink RB allocation is 25 RBs, the DL Fc is 2140MHz, and the duplex mode is frequency division duplexing (FDD); for the uplink frequency band n3, the UL Fc is 1760MHz, the UL and DL bandwidths are 5MHz, the uplink RB allocation is 25 RBs, the DL Fc is 1855MHz, and the duplex mode is time division duplexing (TDD). Then the intermodulation distortion MSD of the terminal device is 23dB.

[0144] Table 3

[0145] Table 4 shows the cross-band isolation MSD of the terminal device.

[0146] As shown in Table 4, in the case where the UL Fc is 1922.5MHz, the UL and DL bandwidths are 5MHz, the SCS of the UL frequency band is 15kHz, the uplink RB allocation is 25 RBs (of which the index of the starting RB RBstart is 0), the DL Fc is 1877.5MHz, and the cross-band isolation resource of the uplink frequency band n1 with respect to the downlink frequency band n77 is greater than ACLR2, the cross-band isolation MSD of the terminal device is 3dB.

[0147] In the case where the UL Fc is 1945MHz, the UL bandwidth is 50MHz, the DL bandwidth is 5MHz, the SCS of the UL frequency band is 15kHz, the uplink RB allocation is 128 RBs (of which the index of the starting RB RBstart is 0), the DL Fc is 1877.5MHz, and the cross-band isolation resource of the uplink frequency band n1 with respect to the downlink frequency band n77 is ACLR1, the cross-band isolation MSD of the terminal device is 19.7dB.

[0148] Table 4

[0149] However, with the development of communication technology, the deployment demand for spectrum combination is increasingly widespread. Therefore, thousands of MSDs are defined in the protocol (for example, the 38.101-1 protocol), and the MSDs range from a few dB to several tens of dB. This may cause the following problems.

[0150] Problem one, the network device can not accurately determine whether to configure a specific spectrum combination for the terminal device. Exemplarily, for the spectrum combination reported by the terminal device, the network device can not obtain part of the information related to the spectrum combination, for example, the network device does not obtain the MSD type, MSD value, MSD order corresponding to the spectrum combination from the terminal device. It is difficult for the network device to determine whether to configure the spectrum combination for the terminal device.

[0151] Problem two, in the case of more spectrum combination deployment requirements in the future, it is difficult to define the MSD of all spectrum combinations.

[0152] It should be noted that the MSD in the above can also be referred to as the MSD value. In order to distinguish, the scheme of the present application is described below taking the MSD value as an example. However, the name of the MSD value does not constitute a limitation on the embodiments of the present application.

[0153] Because of the larger MSD corresponding to part of the spectrum combinations, the reference value of the specific MSD value corresponding to the part of the spectrum combinations is small for the network device (or operator), so it is not meaningful to define the specific MSD of these spectrum combinations.

[0154] Therefore, the present application provides a communication method, the network device can configure or the protocol can predefine a larger granularity MSD level through signaling, and the MSD level can correspond to a range of MSD values, or can correspond to one or more MSD values. Because the MSD values corresponding to various spectrum combinations are usually several to several tens, the number of preconfigured or predefined MSD levels is small. In addition, the terminal device reports the first spectrum combination supported by the terminal device, and also reports the first MSD level corresponding to the first spectrum combination or information associated with the first MSD level, such as the first MSD type associated with the first MSD level or the category of the first spectrum combination. In this way, the network device can determine the first MSD value range or the first MSD value corresponding to the first spectrum combination. Further, the network device can determine whether to configure the first spectrum combination for the terminal device based on the first MSD value range or the first MSD value corresponding to the first spectrum combination. Therefore, the network device can determine whether to configure a specific spectrum combination for the terminal device based on the information reported by the terminal device, so that the network device has less difficulty in determining whether to configure a specific spectrum combination for the terminal device.

[0155] In addition, even if more spectrum combinations need to be deployed in the future, by defining a smaller number of MSD level and MSD value interval (or MSD value) correspondence, through the spectrum combination reported by the terminal device and the MSD level corresponding to the spectrum combination (or information associated with the MSD level), the network device can determine the MSD value interval (or MSD value) corresponding to each spectrum combination. It is helpful for the network device to determine whether to configure a specific spectrum combination for the terminal device.

[0156] Next, in conjunction with FIG. 3, the communication method of the present application will be described in detail. The embodiments shown in the present application show the communication method provided by the present application from the perspective of device interaction. The specific form and number of each device shown are only examples and should not constitute any limitation on the implementation of the method provided by the present application. Next, taking the network device and the terminal device as the main body, the communication method of the embodiments of the present application will be described in detail.

[0157] It should be understood that the terminal device can be the terminal device itself, or a chip, chip system or processor supporting the terminal device to implement the demodulation reference signal transceiving method, or a logic module or software capable of implementing all or part of the terminal device; the network device can be the network device itself, or a chip, chip system or processor supporting the network device to implement the demodulation reference signal transceiving method, or a logic module or software capable of implementing all or part of the network device, which is not limited by the present application.

[0158] FIG. 3 is a flow diagram of the communication method 300 provided by the embodiments of the present application. The method 300 is applicable to the system 100 or the system 200. Among them, the terminal device may, for example, be the terminal device 130 in the system 100, and the network device may, for example, be the access network device 120 in the system 100; or the terminal device may, for example, be the terminal device 240 in the system 200, and the network device may, for example, be the access network device 220 or the access network device 230 in the system 200.

[0159] The method 300 includes the following steps:

[0160] S301, the terminal device sends first information to the network device, and the first information is used to indicate a first spectrum combination. Correspondingly, the network device receives the first information from the terminal device.

[0161] Among them, the first spectrum combination can be a spectrum combination supported by the terminal device. For example, the first information can be carried in the UE capability information. So that the network device can determine the spectrum combination supported by the terminal device based on the first information carried in the UE capability information.

[0162] The first spectrum combination can include at least two frequency bands. Exemplarily, the first spectrum combination can include a first frequency band and a second frequency band, the first frequency band being different from the second frequency band. For example, the first frequency band can be n1, the second frequency band can be n3, the first spectrum combination can be CA_n1-n3, i.e., n1 is carrier aggregated with n3; or, the first frequency band can be n3, the second frequency band can be n78, the first spectrum combination can be CA_n3-n78, i.e., n3 is carrier aggregated with n78, and the like.

[0163] With different first spectrum combinations, the first MSD type corresponding to the first spectrum combination and the first MSD value can also be different.

[0164] At S302, the terminal device sends second information to the network device. Correspondingly, the network device receives the second information from the terminal device. The second information is used to indicate one or more of the following: a first MSD level corresponding to the first spectrum combination; a first MSD type corresponding to the first spectrum combination; a first MSD order of the first MSD type; or, a category of the first spectrum combination, the category of the first spectrum combination being related to frequency ranges to which at least two frequency bands in the first spectrum combination respectively belong, the at least two frequency bands generating the MSD value of the first spectrum combination; the first MSD type, the first MSD order, and the category of the first spectrum combination being associated with the first MSD level.

[0165] The first MSD level is in a mapping relationship with a first MSD value interval, and the first MSD value interval includes the MSD value of the first spectrum combination; or, the first MSD level is in a mapping relationship with a first MSD value, and the first MSD value is the MSD value of the first spectrum combination.

[0166] It should be understood that the first MSD type may, for example but not limited to, include one or more of the following: an intermodulation distortion MSD, a harmonic MSD, a harmonic mixing MSD, or a cross-band isolation MSD. With different first MSD types, the form of the first MSD order can be different.

[0167] Exemplarily, in the case where the first MSD type is an intermodulation distortion MSD, the first MSD order can also be referred to as an intermodulation distortion (IMD) order, which can be denoted as IMD a, a being a positive integer, indicating an a-order intermodulation. The IMD order may, for example but not limited to, include one or more of the following: IMD2, IMD3, IMD4, and IMD5.

[0168] In the case that the first MSD type is harmonic MSD, the first MSD order can also be referred to as harmonic order, which can be denoted by UL b / DL 1. UL b / DL 1 means that the b-th harmonic of the uplink frequency band interferes with the fundamental wave of the downlink frequency band. Here, b is usually a positive integer greater than 1, that is, the b-th harmonic of the uplink frequency band usually interferes with the fundamental wave of the downlink frequency band.

[0169] In the case that the first MSD type is harmonic mixing MSD, the first MSD order can also be referred to as harmonic mixing order, which can be denoted by UL x / DL y or UL x / DL y harmonic mixing. UL x / DL y or UL x / DL y harmonic mixing means that the x-th harmonic of the uplink frequency band interferes with the y-th harmonic of the downlink frequency band. Here, x and y are positive integers, that is, the x-th harmonic of the uplink frequency band usually interferes with the y-th harmonic of the downlink frequency band, where y is an integer greater than 1.

[0170] In the case that the first MSD type is cross-band isolation MSD, the first MSD order can include one or more of the following: ACLR 1, ACLR 2, or >ACLR 2.

[0171] The category of the first spectrum combination can be used to indicate the frequency range in which the at least two frequency bands included in the first spectrum combination are located.

[0172] For ease of understanding, first, the frequency range is described.

[0173] Optionally, the protocol can predefine or the network device can preconfigure a plurality of frequency ranges; or the plurality of frequency ranges are default agreed frequency ranges. Exemplarily, the plurality of frequency ranges can include a first range, a second range, and a third range. The frequencies in the first range are less than or equal to a first threshold, the frequencies in the second range are greater than the first threshold and less than or equal to a second threshold, and the frequencies in the third range are greater than the second threshold.

[0174] Here, the first threshold can be, for example, 1 GHz, and the second threshold can be, for example, 2.7 GHz. Then the first range is ≤1 GHz, the second range is 1.0 GHz-2.7 GHz, and the third range is >2.7 GHz.

[0175] It should be understood that the first range can also be referred to as, for example, low frequency, the second range can also be referred to as, for example, medium frequency, and the third range can be referred to as, for example, high frequency, and the like, and the names of the first range, the second range, and the third range are not specifically limited in the present application.

[0176] It should be noted that, in the case of the frequency being equal to the first threshold, it can also belong to the second range, and / or, in the case of the frequency being equal to the second threshold, it can also belong to the third range. The present application does not make specific limitations in this regard.

[0177] Alternatively, the plurality of frequency ranges can further include more or fewer ranges. For example, the plurality of frequency ranges can further include four ranges, such as a first range, a second range, a third range, and a fourth range, the frequencies in the fourth range being higher than the frequencies in the third range, and the four frequency ranges can be referred to as low frequency, medium frequency, high frequency, and ultra-high frequency (Ultra-High) in turn, respectively. Alternatively, the plurality of frequency ranges can further include five ranges, such as a first range, a second range, a third range, a fourth range, and a fifth range, the frequencies in the fifth range being higher than the frequencies in the fourth range, the frequencies in the fourth range being higher than the frequencies in the third range, and the five frequency ranges can be referred to as low frequency, medium frequency, high frequency, ultra-high frequency, and very high frequency, etc. in turn, respectively. For the sake of brevity, they will not be shown one by one here.

[0178] In combination with the predefined or preconfigured plurality of frequency ranges, the frequency spectrum combination can belong to different categories based on the different frequency ranges corresponding to the frequency bands in the frequency spectrum combination.

[0179] Taking an example in which the plurality of frequency ranges includes a first range (low frequency), a second range (medium frequency), and a third range (high frequency), and the first frequency spectrum combination includes a first frequency band and a second frequency band. The category of the first frequency spectrum combination can be determined in one or more of the following ways.

[0180] 1. In the case where the frequency points of the first frequency band belong to the first range and the frequency points of the second frequency band belong to the second range, the category of the first frequency spectrum combination is a first category corresponding to the first range and the second range, which can be referred to as low frequency + medium frequency, or low + medium, for example.

[0181] 2. In the case where the frequency points of the first frequency band belong to the second range and the frequency points of the second frequency band belong to the third range, the category of the first frequency spectrum combination is a second category corresponding to the second range and the third range, which can be referred to as medium frequency + high frequency, or medium + high, for example.

[0182] 3. In the case where the frequency points of the first frequency band belong to the first range and the frequency points of the second frequency band belong to the first range, the category of the first frequency spectrum combination is a third category corresponding to the first range and the first range, which can be referred to as low frequency + low frequency, or low + low, for example.

[0183] 4. In the case where the frequency points of the first frequency band belong to the second range and the frequency points of the second frequency band belong to the second range, the category of the first frequency spectrum combination is a fourth category corresponding to the second range and the second range, which can be referred to as medium frequency + medium frequency, or medium + medium, for example.

[0184] 5、in the case that the frequency point of the first frequency band belongs to the first range and the frequency point of the second frequency band belongs to the third range, the category of the first frequency spectrum combination is the fifth category corresponding to the first range and the third range, and the fifth category can be referred to as low frequency + high frequency, or low + high.

[0185] 6、in the case that the frequency point of the first frequency band belongs to the third range and the frequency point of the second frequency band belongs to the third range, the category of the first frequency spectrum combination is the sixth category corresponding to the third range and the third range, and the sixth category can be referred to as high frequency + high frequency, or high + high.

[0186] The first MSD type, the first MSD order and the category of the first frequency spectrum combination being associated with the first MSD level can also be understood as: in the case that the second information indicates one or more of the first MSD type, the first MSD order or the category of the first frequency spectrum combination, the one or more indicated by the second information are associated with the first MSD level. For example, the second information is used to indicate the category of the first frequency spectrum combination, and the category of the first frequency spectrum combination is associated with the first MSD level.

[0187] It should be understood that the MSD numerical interval can refer to a range of MSD numerical intervals or a range of numerical MSDs. For example, the first MSD numerical interval can be an MSD numerical value greater than or equal to an MSD numerical value 1, an MSD numerical value in an MSD numerical value 2 to an MSD numerical value 3, or an MSD numerical value less than or equal to an MSD numerical value 4. For example, the first MSD numerical interval is 26-28 dB, etc. The first MSD numerical interval containing the MSD numerical value of the first frequency spectrum combination can also be understood as: the MSD numerical value of the first frequency spectrum combination is in (or belongs to) the first MSD numerical interval.

[0188] The first MSD numerical value can include at least one MSD numerical value. For example, the first MSD numerical value includes one MSD numerical value, for example, the first MSD numerical value is 10.4 dB, and the MSD numerical value of the first frequency spectrum combination is also 10.4 dB; the first MSD numerical value includes multiple MSD numerical values, for example, the first MSD numerical value includes 10 dB and 10.4 dB, and the first MSD numerical value of the first frequency spectrum combination can be replaced by the first MSD numerical value being one of the first MSD numerical values, and the MSD numerical value of the first frequency spectrum combination can be 10 dB, for example.

[0189] It should be noted that the MSD level can be understood as an identifier used to indicate an MSD value interval or an MSD value. The MSD level can be an index, such as 0, 1, 2, or 3, or the like; or can be another identifier. For example, the MSD level can also be represented by class, and the first MSD level can be class I or class 1, or the like. The embodiments of the present application are described by taking the MSD level as an example, and the MSD level can be replaced by another identifier. The present application does not limit the representation form of the MSD level.

[0190] Different MSD levels can indicate (or map) different MSD value intervals or MSD values.

[0191] For example, the first MSD level maps a first MSD value, and a second MSD level different from the first MSD level can map a second MSD value, for example. The first MSD value and the second MSD value can be different, for example, the first MSD value can be 10 dB, and the second MSD value can be 23.8 dB, or the like.

[0192] For another example, the first MSD level maps a first MSD value interval, and a second MSD level different from the first MSD level can map a second MSD value interval, for example. The first MSD value interval and the second MSD value interval can be different, for example, the first MSD value interval can be 0-5 dB, and the second MSD value interval can be >20 dB, or the like.

[0193] The MSD value of the first spectrum combination can be a MSD value calculated by the terminal device. For example, the terminal device can calculate the MSD value of the first spectrum combination based on parameters such as antenna port output power, power amplifier gain, and duplexer insertion loss. The MSD value of the first spectrum combination is the MSD value generated by combining at least two frequency bands included in the first spectrum combination. For example, the first spectrum combination can be CA_n1-n3, and the first MSD value can be the MSD value generated by carrier aggregation of n1 and n3.

[0194] It should be noted that the first information and the second information can be carried in different signaling, or the first information and the second information can also be carried in the same signaling, for example, both carried in the UE capability information. In the case where the first information and the second information are carried in the same signaling, the first information and the second information can be carried in the same field or different fields in the signaling. The present application does not make specific limitation thereto.

[0195] Optionally, the method 300 further includes: determining, by the network device, the first MSD level based on the second information; determining that the MSD value of the first spectrum combination belongs to the first MSD value interval based on the first MSD level and the mapping relationship between the first MSD level and the first MSD value interval, or determining that the MSD value of the first spectrum combination is the first MSD value based on the first MSD level and the mapping relationship between the first MSD level and the first MSD value.

[0196] The communication method of the present application, the network device can determine the first MSD level based on the second information. And in combination with the first MSD value interval or the first MSD value mapped by the first MSD level, the network device can determine that the MSD value of the first spectrum combination is the first MSD value or that the MSD value of the first spectrum combination is in the first MSD value interval. In this way, the network device can determine whether to configure the first spectrum combination for the terminal device based on the first MSD value interval or the first MSD value corresponding to the first spectrum combination. Therefore, the network device can determine whether to configure the first spectrum combination for the terminal device based on the information reported by the terminal device, so that the network device has less difficulty in determining whether to configure the first spectrum combination for the terminal device.

[0197] In addition, even if more spectrum combinations need to be deployed in the future, by defining the correspondence relationship between a smaller number of MSD levels and MSD value intervals (or MSD values), through the new spectrum combination reported by the terminal device and the MSD level (or information associated with the MSD level) corresponding to the new spectrum combination, the network device can also determine the MSD value interval (or MSD value) corresponding to the new spectrum combination. This is helpful for the network device to determine whether to configure the new spectrum combination for the terminal device.

[0198] In addition, as the deployment of more spectrum combinations in the future requires, there is no need to define the MSD value corresponding to each spectrum combination in the protocol, so that the definition difficulty is smaller.

[0199] And, compared with the terminal device directly reporting the MSD value of the first spectrum combination, since the MSD value usually includes more digits, the signaling overhead of the terminal device reporting the MSD value of the first spectrum combination can be larger. For example, assuming that the MSD value of the first spectrum combination is 23.8 dB, the terminal device needs to spend more bits to report 23.8 dB. Each of the first MSD level, the first MSD type, the first MSD order, or the category of the first spectrum combination can be indicated by fewer bits. For example, assuming that the MSD level includes the first MSD level, the second MSD level, the third MSD level, and the fourth MSD level, the terminal device can indicate the first MSD level by two bits. Therefore, the signaling overhead of the terminal device indicating the first MSD level to the network device through the second information is smaller.

[0200] As can be seen from the description of S302, the network device can determine the first MSD level corresponding to the first spectrum combination based on the second information. Then, the method 300 can further include: the network device determines whether to configure the first spectrum combination for the terminal device according to the first MSD level.

[0201] It can be understood that the network device can determine the MSD value of the first spectrum combination or the MSD value interval in which the MSD value of the first spectrum combination is located based on the first MSD level. Then, the network device can determine whether to configure the first spectrum combination for the terminal device. For example, in the case that the first MSD value corresponding to the first MSD level or the MSD value in the first MSD value interval is large, the network device can not configure the first spectrum combination for the terminal device; in the case that the first MSD value corresponding to the first MSD level or the MSD value in the first MSD value interval is small, the network device can configure the first spectrum combination for the terminal device, and the like.

[0202] In order to adapt to the MSD values of various spectrum combinations, the protocol can predefine or the network device can pre-configure: the mapping relationship between more MSD levels and more MSD value intervals, or the mapping relationship between more MSD levels and more MSD values, as follows.

[0203] As an optional embodiment, the protocol can predefine or the network device can pre-configure the first mapping relationship or the second mapping relationship.

[0204] The first mapping relationship is the mapping relationship between the first MSD level set and the first MSD value interval set; the first MSD level set includes at least one MSD level, and the first MSD level set includes the first MSD level; the first MSD value interval set includes at least one MSD value interval, and the first MSD value interval set includes the first MSD value interval. That is, the first mapping relationship includes the mapping relationship between the first MSD level and the first MSD value interval.

[0205] The second mapping relationship is the mapping relationship between the first MSD level set and the first MSD value set; the first MSD value set includes at least one MSD value, and the first MSD value set includes the first MSD value. That is, the second mapping relationship includes the mapping relationship between the first MSD level and the first MSD value.

[0206] It should be understood that the first mapping relationship can be a non-uniform mapping relationship, i.e., the intervals between different MSD value intervals can be different. For example, the MSD value interval 1 can be 0-5 dB; the MSD value interval 2 can be 10-20 dB; the MSD value interval 3 can be ≥22 dB, etc. The maximum value in the MSD value interval 1 is 5 dB apart from the minimum value in the MSD value interval 2; the maximum value in the MSD value interval 2 is 2 dB apart from the minimum value in the MSD value interval 3.

[0207] Exemplarily, the first mapping relationship can be as shown in Table 5. The first MSD grade set includes MSD grade I, MSD grade II, and MSD grade III. The first MSD value interval set includes MSD value interval 1, MSD value interval 2, and MSD value interval 3, which can be >20 dB, 10-20 dB, and 0-10 dB in turn. The first mapping relationship includes the mapping relationship of MSD grade I>20 dB, the mapping relationship of MSD grade II 10-20 dB, and the mapping relationship of MSD grade III 0-10 dB.

[0208] In the case that the first mapping relationship is as shown in Table 5, the first MSD grade can be, for example, MSD grade I, and the first MSD value interval is >20 dB; or, the first MSD grade can be, for example, MSD grade II, and the first MSD value interval is 10-20 dB; or, the first MSD grade can be, for example, MSD grade III, and the first MSD value interval is 0-10 dB.

[0209] Table 5

[0210] In addition, exemplarily, the second mapping relationship can be as shown in Table 6. The first MSD grade set includes MSD grade I, MSD grade II, MSD grade III, MSD grade IV, and MSD grade V. The first MSD value set includes MSD value 1, MSD value 2, MSD value 3, MSD value 4, and MSD value 5, which can be 20 dB, 15 dB, 13 dB, 8.5 dB, and 5 dB in turn. The second mapping relationship includes the mapping relationship of MSD grade I 20 dB, the mapping relationship of MSD grade II 15 dB, the mapping relationship of MSD grade III 13 dB, the mapping relationship of MSD grade IV 8.5 dB, and the mapping relationship of MSD grade V 5 dB.

[0211] In the case that the second mapping relationship is shown in Table 6, the first MSD level can be, for example, MSD level I, and the first MSD value is 20 dB; or, the first MSD level can be, for example, MSD level II, and the first MSD value is 15 dB; or, the first MSD level can be, for example, MSD level III, and the first MSD value is 13 dB; or, the first MSD level can be, for example, MSD level IV, and the first MSD value is 8.5 dB; or, the first MSD level can be, for example, MSD level V, and the first MSD value is 5 dB. The mapping relationship can be a non-uniform mapping relationship, and the intervals between the MSD values corresponding to adjacent MSD levels can be different. For example, the interval between 20 dB corresponding to MSD level I and 15 dB corresponding to MSD level II is 5 dB; the interval between 15 dB corresponding to MSD level II and 13 dB corresponding to MSD level III is 2 dB, and so on.

[0212] Table 6

[0213] It should be noted that the table in the embodiments of the present application does not constitute a limitation on the embodiments of the present application, and specifically includes the following points, which will not be described hereinafter for the sake of brevity.

[0214] 1. In the case that the boundaries of two MSD value intervals coincide, the MSD value corresponding to the coinciding boundary can belong to either of the two MSD value intervals. For example, 20 dB in Table 5 can be divided into MSD value interval 2 or MSD value interval 3.

[0215] 2. The number and representation of the MSD levels included in each MSD level set shown in the table are only examples, and each MSD level set can also include more or fewer MSD levels. For example, the first MSD level set can also include 1 MSD level, or the first MSD level set can also include 4 or 5 MSD levels. Similarly, each MSD value interval set shown in the table can also include more or fewer MSD value intervals, and each MSD value set shown in the table can also include more or fewer MSD values.

[0216] 3. The MSD values or MSD value intervals shown in the table are only examples, and each MSD value or MSD value interval can also be replaced by others; and the MSD value intervals corresponding to each level can also be replaced. For example, in Table 5, MSD level I can also map 20-24 dB, and MSD level II can also map > 24 dB; and the MSD values corresponding to each level can also be replaced. For example, in Table 6, MSD level I can also map 15 dB, and MSD level II can also map 5 dB.

[0217] 4、The number of corresponding relations or mapping relations shown in the table is only an example, and the protocol can predefine or the network device can further preconfigure more or fewer corresponding relations or mapping relations. For example, in combination with Table 6, the second mapping relation further includes mapping relations between more MSD levels and more MSD values.

[0218] On the basis of the above-mentioned embodiments, in order to meet the needs of the network device (or the operator), the protocol can predefine or the network device can preconfigure the first mapping relation and the second mapping relation.

[0219] That is, the first MSD level set includes a plurality of MSD levels, part of the plurality of MSD levels has the first mapping relation with the first MSD value interval, and the remaining part of the plurality of MSD levels has the second mapping relation with the first MSD value set.

[0220] Exemplarily, as shown in Table 7, the first MSD level set includes six MSD levels of MSD level I to MSD level VI. The six MSD levels have the first mapping relation with the first MSD value interval set, and the first MSD value interval set includes the MSD value interval 1 (> 24). The five MSD levels other than the MSD level I in the six MSD levels have the second mapping relation with the first MSD value interval set. The first MSD value interval set includes the MSD value 1 (20 dB), the MSD value 2 (15 dB), the MSD value 3, the MSD value 4 (8.5 dB), and the MSD value 5 (5 dB).

[0221] The mapping relation exists between the MSD level I and the MSD value interval 1 (> 24), the mapping relation exists between the MSD level II and the MSD value 1 (20 dB), the mapping relation exists between the MSD level III and the MSD value 2 (15 dB), the mapping relation exists between the MSD level IV and the MSD value 3 (13 dB), the mapping relation exists between the MSD level V and the MSD value 4 (8.5 dB), and the mapping relation exists between the MSD level VI and the MSD value 5 (5 dB).

[0222] Then, in the case of the MSD level I in the first MSD type, the first MSD value interval is > 24 dB, and then the MSD value of the first spectrum combination is > 24 dB; in the case of the MSD level II in the first MSD type, the first MSD value is 20 dB, and then the MSD value of the first spectrum combination is 20 dB, and so on.

[0223] Table 7

[0224] It can be seen from the above shown Tables 5 to 7 that, in the case that the network device can determine that the first spectrum combination corresponds to the first MSD level, the network device can determine the MSD value of the first spectrum combination, or the network device can determine the MSD value interval in which the MSD value of the first spectrum combination is located.

[0225] It can be understood that, with different first MSD types corresponding to the first spectrum combination, the influencing factors of the MSD value of the first spectrum combination are different. For example, in the case that the first MSD type is the intermodulation distortion MSD, the MSD value of the first spectrum combination is significantly affected by the category of the spectrum combination.

[0226] For example, in the case that the frequency ranges corresponding to the at least two frequency bands included in the first spectrum combination are closer, the intermodulation distortion generated by the at least two frequency bands is larger, so that the MSD value of the first spectrum combination can be larger; in the case that the frequency ranges corresponding to the at least two frequency bands included in the first spectrum combination are far apart, the intermodulation distortion generated by the at least two frequency bands is smaller, so that the MSD value of the first spectrum combination can be smaller.

[0227] Based on this, in the case that the first MSD type is the intermodulation distortion MSD, the category of the spectrum combination and the MSD level have a corresponding relationship. For reference can be made to the first possible case.

[0228] The first possible case

[0229] The protocol can predefine or the network device can preconfigure the corresponding relationship A, the corresponding relationship A including: a corresponding relationship between a category set of spectrum combinations and a first MSD level set. The category set of spectrum combinations includes at least one category of spectrum combination, and the first MSD level set includes at least one MSD level.

[0230] The category set of spectrum combinations includes the category of the first spectrum combination, and the first MSD level set includes the first MSD level. That is, the corresponding relationship A includes: a corresponding relationship between the category of the first spectrum combination and the first MSD level.

[0231] It should be understood that the at least one category of spectrum combination and the at least one MSD level can be one-to-one corresponding, or each MSD level in the at least one MSD level can correspond to one or more categories of spectrum combination.

[0232] For example, as shown in Table 8, the corresponding relationship A may, for example, include: a corresponding relationship between the first category and the MSD level III; a corresponding relationship between the second category and the MSD level IV; a corresponding relationship between the third category and the MSD level I; and a corresponding relationship between the fourth category and the MSD level II.

[0233] Then, in combination with Table 8, in a case that the category of the first spectrum combination is the first category, the first MSD level can be MSD level III; in a case that the category of the first spectrum combination is the second category, the first MSD level can be MSD level IV, and so on.

[0234] Table 8

[0235] Based on this, in a case that the second information is used to indicate the category of the first spectrum combination, the network device can determine the first MSD level corresponding to the category of the first spectrum combination based on the category of the first spectrum combination and the correspondence relationship A. Exemplarily, in a case that the second information indicates that the category of the first spectrum combination is the first category, the network device can determine, based on the correspondence relationship A, that the first MSD level is MSD level III corresponding to the first category.

[0236] Further, the network device can determine, based on the first MSD level and the first mapping relationship, that the MSD value of the first spectrum combination is in the first MSD value interval; or the network device can determine, based on the first MSD level and the second mapping relationship, that the MSD value of the first spectrum combination is the first MSD value.

[0237] Optionally, the correspondence relationship A can also be a correspondence relationship between the category set of the spectrum combination, the first MSD level set, and the first MSD value interval set and / or the first MSD value set. Then, the correspondence relationship A includes a correspondence relationship between the category of the first spectrum combination, the first MSD level, and the first MSD value or the first MSD value interval.

[0238] Exemplarily, as shown in Table 9, the correspondence relationship A can include a correspondence relationship between the first category, MSD level III, and MSD value 1 (15 dB); a correspondence relationship between the second category, MSD level IV, and MSD value 2 (13 dB); a correspondence relationship between the third category, MSD level I, and the MSD value interval 1 (> 25 dB); and a correspondence relationship between the fourth category, MSD level II, and MSD value 3 (20 dB).

[0239] Then, in combination with Table 9, in a case that the category of the first spectrum combination is the first category, the first MSD level can be MSD level III, and the MSD value of the first spectrum combination is the first MSD value (15 dB); in a case that the category of the first spectrum combination is the second category, the first MSD level can be MSD level IV, and the MSD value of the first spectrum combination is the first MSD value (13 dB), and so on.

[0240] Table 9

[0241] Based on this, in a case where the second information is used to indicate the category of the first spectrum combination, the network device can determine, based on the category of the first spectrum combination and the correspondence relationship A, that the MSD value of the first spectrum combination is in the first MSD value interval or that the MSD value of the first spectrum combination is the first MSD value.

[0242] For example, in combination with Table 9, it is assumed that the second information is used to indicate that the category of the first spectrum combination is the first category, and the network device can determine, based on the first category and the correspondence relationship A, that the MSD value of the first spectrum combination is 15 dB, and so on.

[0243] It should be noted that, in some possible implementation manners, the categories of different spectrum combinations can also correspond to the same MSD level. For example, in combination with Table 9, the fourth category can also correspond to the MSD level I. This is not limited in the present application.

[0244] It can be understood that, in a case where the first MSD type is the intermodulation distortion MSD, the MSD value of the first spectrum combination is also affected by the IMD order in addition to the category of the first spectrum combination.

[0245] Based on this, in a case where the first MSD type is the intermodulation distortion MSD, there is a correspondence relationship between the IMD order, the category of the spectrum combination, and the MSD level. For details, refer to the second possible case.

[0246] Second possible case

[0247] The protocol can predefine or the network device can preconfigure the correspondence relationship B, and the correspondence relationship B includes a correspondence relationship between an IMD order set, a category set of spectrum combinations, and a first MSD level set.

[0248] The IMD order set includes at least one IMD order. For example, the IMD order set can include but is not limited to one or more of the following: IMD2, IMD3, IMD4, and IMD5.

[0249] The category set of spectrum combinations includes at least one category of spectrum combinations. For example, the category set of spectrum combinations can include but is not limited to one or more of the following: the first category, the second category, the third category, the fourth category, the fifth category, and the sixth category.

[0250] The first MSD level set includes at least one MSD level. For details of the first MSD level set, refer to the foregoing description.

[0251] In addition, the set of IMD orders includes an IMD order corresponding to the first spectrum combination (a first MSD order); the set of categories of spectrum combinations includes a category of the first spectrum combination; and the set of MSD levels includes a first MSD level. That is, the correspondence relationship B includes a first correspondence relationship among the IMD order corresponding to the first spectrum combination, the category of the first spectrum combination, and the first MSD level. The IMD order corresponding to the first spectrum combination can also be referred to as an MSD order of intermodulation distortion MSD.

[0252] The number of IMD orders in the set of IMD orders, the number of categories of spectrum combinations in the set of categories of spectrum combinations, and the number of MSD levels in the set of MSD levels can be the same or different.

[0253] For example, as shown in Table 10, the correspondence relationship B includes a correspondence relationship of IMD2, a first category, and a MSD level I; a correspondence relationship of IMD2, a second category, and a MSD level I; a correspondence relationship of IMD3, a first category, and a MSD level III; a correspondence relationship of IMD3, a second category, and a MSD level IV; a correspondence relationship of IMD3, a third category, and a MSD level I; a correspondence relationship of IMD3, a fourth category, and a MSD level II; a correspondence relationship of IMD4, a second category, and a MSD level V; a correspondence relationship of IMD4, a fourth category, and a MSD level V; a correspondence relationship of IMD4, a fifth category, and a MSD level V; a correspondence relationship of IMD5, a second category, and a MSD level VI; a correspondence relationship of IMD5, a fourth category, and a MSD level VI; and a correspondence relationship of IMD5, a fifth category, and a MSD level VI.

[0254] Table 10

[0255] In combination with Table 10, the first correspondence relationship can be, for example, a correspondence relationship of IMD2, a first category, and a MSD level I, and in the case that the first MSD order is IMD2 and the category of the first spectrum combination is the first category, the first MSD level is the MSD level I; or the first correspondence relationship can be, for example, a correspondence relationship of IMD2, a second category, and a MSD level I, and in the case that the first MSD order is IMD2 and the category of the first spectrum combination is the second category, the first MSD level is the MSD level I, and so on.

[0256] Based on the first correspondence relationship, in the case that the first MSD type corresponding to the first spectrum combination is intermodulation distortion MSD and the network device determines the IMD order corresponding to the first spectrum combination and the category of the first spectrum combination, the network device can determine the first MSD level corresponding to the first spectrum combination.

[0257] Thus, in an implementation, the second information can indicate the first MSD type, the first IMD order (the IMD order corresponding to the first spectrum combination), and the category of the first spectrum combination. Then, in a case where the network device determines that the MSD type of the first spectrum combination is IMD, the network device can determine the first MSD level corresponding to the first spectrum combination based on the first corresponding relationship, the first IMD order, and the category of the first spectrum combination.

[0258] In another implementation, the second information can indicate the first IMD order and the category of the first spectrum combination. Then, the network device can determine the first MSD level corresponding to the first spectrum combination based on the first corresponding relationship, the first IMD order, and the category of the first spectrum combination.

[0259] In yet another implementation, the second information can indicate the category of the first spectrum combination.

[0260] It can be understood that, for the intermodulation distortion MSD, there is a correlation between the spectrum combination and the IMD order. Then, the network device can determine the IMD order corresponding to the first spectrum combination based on the first spectrum combination indicated by the first information. Therefore, the terminal device can not report the IMD order corresponding to the first spectrum combination.

[0261] Then, the network device can determine the first MSD order (the IMD order corresponding to the first spectrum combination) based on the first spectrum combination indicated by the first information, and determine the first MSD level corresponding to the first spectrum combination based on the first corresponding relationship, the first MSD order, and the category of the first spectrum combination indicated by the second information.

[0262] Further, the network device can determine that the first MSD level corresponds to a first MSD numerical interval based on the first mapping relationship, and then determine that the MSD numerical value of the first spectrum combination is in the first MSD numerical interval, or the network device can determine that the first MSD level corresponds to a first MSD numerical value based on the second mapping relationship, and then determine that the MSD numerical value of the first spectrum combination is the first MSD numerical value.

[0263] It should be noted that Table 10 is only an example. In some possible implementations, the corresponding relationship B can also satisfy one or more of the following.

[0264] 1. The categories of different spectrum combinations can also correspond to the same MSD level. For example, in a case where the IMD order is IMD2, the first category and the second category both correspond to the MSD level I, in combination with Table 10.

[0265] 2、Different IMD orders can correspond to the same MSD level. For example, in combination with Table 10, the MSD level VI corresponding to IMD 5 can be replaced by the MSD level V, and then the MSD levels corresponding to IMD 4 and IMD 5 are the same. Alternatively, different harmonic orders can correspond to the same MSD level.

[0266] 3、Different IMD orders of different spectrum combination categories can correspond to the same MSD level. For example, in combination with Table 10, there is a corresponding relationship between IMD 2, the first category, and the MSD level I, and there is a corresponding relationship between IMD 3, the third category, and the MSD level I. In the two corresponding relationships, the IMD order and the spectrum combination category are different, but the MSD level is the same.

[0267] For the above corresponding relationship B, the following method can also be used to represent it.

[0268] Method 1: The corresponding relationship B can be represented by multiple tables. For example, the corresponding relationship between the category of at least one spectrum combination corresponding to each IMD order in Table 10 and at least one MSD level can be represented by a separate table.

[0269] Optionally, the corresponding relationship B includes a corresponding relationship 1 associated with a first MSD order (an IMD order corresponding to a first spectrum combination), and the corresponding relationship 1 includes a corresponding relationship between a category set of spectrum combinations and a first MSD level set. The category set of spectrum combinations includes the category of the first spectrum combination, and the first MSD level set includes the first MSD level, and the corresponding relationship 1 includes the corresponding relationship between the category of the first spectrum combination and the first MSD level.

[0270] It should be understood that the first MSD order can be one or more of the following: IMD 2, IMD 3, IMD 4, and IMD 5.

[0271] Exemplarily, assuming that the first MSD order is IMD 2, the corresponding relationship 1 corresponding to the first MSD order can be shown in Table 11, for example. That is, in the case where the network device determines the first MSD order based on the first spectrum combination indicated by the first information, the first spectrum combination can be determined to correspond to the first MSD level based on the corresponding relationship 1 corresponding to the first MSD order. For example, assuming that the second information indicates that the category of the first spectrum combination is the first category, in combination with Table 11, the network device can determine that the first spectrum combination corresponds to the MSD level I.

[0272] Table 11

[0273] For example, assuming the first MSD order is IMD3, the correspondence relationship 1 corresponding to the first MSD order can be as shown in Table 8. That is, in a case where the IMD order corresponding to the first spectrum combination indicated by the network device based on the first information is IMD3, the first spectrum combination can be determined to correspond to the first MSD level based on the correspondence relationship 1 corresponding to IMD3. For example, assuming that the second information indicates that the category of the first spectrum combination is the first category, the network device can determine that the first spectrum combination corresponds to the MSD level III in combination with the correspondence relationship 1 shown in Table 8.

[0274] By analogy, the correspondence relationship 1 can be different as the first MSD order is different. In a case where the first MSD order is IMD4, the correspondence relationship 1 associated with IMD4 can be, for example, the correspondence relationship between the second category, the fourth category, and the fifth category and the MSD level V in Table 10; in a case where the first MSD order is IMD5, the correspondence relationship 1 associated with IMD5 can be, for example, the correspondence relationship between the second category, the fourth category, and the fifth category and the MSD level VI in Table 10. For brevity, this will not be shown one by one here.

[0275] Optionally, the correspondence relationship B includes a correspondence relationship 2 corresponding to the category of the first spectrum combination, and the correspondence relationship 2 is a correspondence relationship between an IMD order set and a first MSD level set. The IMD order set includes an IMD order corresponding to the first spectrum combination.

[0276] For example, the category of the first spectrum combination can be any one of the following: the first category, the second category, the third category, the fourth category, the fifth category, or the sixth category.

[0277] For example, as shown in Table 12. The correspondence relationship B includes a correspondence relationship 2 corresponding to the first category, that is, a correspondence relationship between IMD2 and the MSD level I, and a correspondence relationship between IMD3 and the MSD level III. Then, in a case where the category of the first spectrum combination is the first category, the correspondence relationship 2 includes a correspondence relationship between IMD2 and the MSD level I, and a correspondence relationship between IMD3 and the MSD level III.

[0278] Then, in a case where the network device determines based on the second information that the category of the first spectrum combination is the first category, the first MSD level corresponding to the first spectrum combination can be determined based on the correspondence relationship 2 corresponding to the first category. For example, in a case where the second information indicates that the category of the first spectrum combination is the first category, assuming that the network device determines based on the first spectrum combination that the IMD order corresponding to the first spectrum combination is IMD2, the network device can determine that the first MSD level corresponding to the first spectrum combination is the MSD level I.

[0279] The correspondence relationship B further includes: the correspondence relationship 2 corresponding to the second category includes: the correspondence relationship between IMD2 and MSD level I; the correspondence relationship between IMD3 and MSD level IV; the correspondence relationship between IMD4 and MSD level V; and the correspondence relationship between IMD5 and MSD level VI. Then, in the case that the category of the first spectrum combination is the second category, the correspondence relationship 2 corresponding to the category of the first spectrum combination is the correspondence relationship 2 corresponding to the second category.

[0280] Then, in the case that the network device determines, based on the second information, that the category of the first spectrum combination is the second category, the first MSD level corresponding to the first spectrum combination can be determined based on the correspondence relationship 2 corresponding to the second category. For example, in the case that the second information indicates that the category of the first spectrum combination is the second category, assuming that the network device determines, based on the first spectrum combination indicated by the first information, that the IMD order corresponding to the first spectrum combination is IMD4, the network device can determine that the first MSD level corresponding to the first spectrum combination is MSD level V.

[0281] By analogy, the correspondence relationship 2 can be different as the category of the first spectrum combination is different. For details, refer to Table 12. For brevity, details are not described one by one here.

[0282] It should be noted that the correspondence relationship 2 corresponding to the category of each spectrum combination can also be a separate table. For example, the correspondence relationship 2 corresponding to the first category can be represented by a separate table; the correspondence relationship 2 corresponding to the second category can be represented by a separate table; and so on. For brevity, details are not described one by one here.

[0283] Table 12

[0284] In the manner 1 or the manner 2, in the case that the network device determines the first MSD level corresponding to the first spectrum combination, the network device can determine, based on the first mapping relationship, that the first MSD level corresponds to a first MSD numerical interval, and then determine that the MSD numerical value of the first spectrum combination is in the first MSD numerical interval; or the network device can determine, based on the second mapping relationship, that the first MSD level corresponds to a first MSD numerical value, and then determine that the MSD numerical value of the first spectrum combination is the first MSD numerical value.

[0285] It should be noted that for the above first possible case and the second possible case, the MSD levels shown can satisfy the first mapping relationship and / or the second mapping relationship. In this way, in a case where the network device determines that the first spectrum combination corresponds to the first MSD level, the first mapping relationship can be used to determine the first MSD numerical interval corresponding to the first MSD level, and then it is determined that the MSD numerical value of the first spectrum combination is in the first MSD numerical interval; or the second mapping relationship is used to determine the first MSD numerical value corresponding to the first MSD level, and then it is determined that the MSD numerical value of the first spectrum combination is the first MSD numerical value.

[0286] However, in some scenarios, the same MSD level can correspond to different MSD numerical values or MSD numerical intervals as the spectrum combination category changes. For details, refer to the third possible case and the fourth possible case.

[0287] The third possible case

[0288] The protocol can predefine or the network device can preconfigure a correspondence C, and the correspondence C includes: the category of the first spectrum combination, the first MSD level set, and the second correspondence between the first MSD numerical value set and / or the first MSD numerical interval set.

[0289] Exemplarily, as shown in Table 13, the correspondence C may, for example, include: a correspondence between the first category, the MSD level I, and 15 dB; a correspondence between the second category, the MSD level I, and 13 dB; a correspondence between the second category, the MSD level II, and 14 dB; a correspondence between the second category, the MSD level III, and 16-18 dB; a correspondence between the third category, the MSD level I, and 18 dB; a correspondence between the third category, the MSD level II, and 20 dB; a correspondence between the third category, the MSD level III, and 23-25 dB; and a correspondence between the third category, the MSD level IV, and >25 dB.

[0290] Then, in a case where the category of the first spectrum combination is the first category, the second correspondence may, for example, be a correspondence between the first category, the MSD level I, and 15 dB.

[0291] Or, in the case that the type of the first spectrum combination is the second category, the second correspondence may, for example, include: a correspondence between the second category, MSD level I, and 13 dB; a correspondence between the second category, MSD level II, and 14 dB; a correspondence between the second category, MSD level III, and 16-18 dB, wherein the first MSD level set includes MSD level I, MSD level II, and MSD level III, the first MSD value set includes 13 dB and 14 dB, and the first MSD value interval set includes 16-18 dB. And so on.

[0292] As can be seen in Table 13, in the case that the categories of the spectrum combinations are different, the MSD value or MSD value interval corresponding to the same MSD level may be different. For example, in the case that the category of the spectrum combination is the first category, the MSD level I corresponds to the MSD value of 15 dB; in the case that the category of the spectrum combination is the second category, the MSD level I corresponds to the MSD value of 13 dB, and so on.

[0293] Table 13

[0294] Then, in the case that the second information indicates that the category of the first spectrum combination is the first category and indicates that the first MSD level is MSD level I, the network device may determine, based on the second correspondence, that the MSD value of the first spectrum combination is 15 dB; or, in the case that the second information indicates that the category of the first spectrum combination is the second category and indicates that the first MSD level is MSD level II, the network device may determine, based on the second correspondence, that the MSD value of the first spectrum combination is 14 dB, and so on.

[0295] Or, the correspondence C may also be expressed in other manners. For example, the correspondence C may include a mapping relationship corresponding to the category of each spectrum combination in the category set of the spectrum combination. The mapping relationship is a mapping relationship between at least one MSD level and at least one MSD value or at least one MSD value set.

[0296] For example, it is assumed that the correspondence C includes: a mapping relationship 1 corresponding to the first category, a mapping relationship 2 corresponding to the second category, and a mapping relationship 3 corresponding to the third category, and so on.

[0297] Then, in combination with Table 13, the mapping relationship 1 includes a mapping relationship between MSD level I and 15 dB. That is, in the case that the category of the first spectrum combination is the first category, if the first MSD level corresponding to the first spectrum combination is MSD level I, the MSD value of the first spectrum combination is 15 dB.

[0298] The mapping relationship 2 includes a mapping relationship between the MSD level I and 13 dB, a mapping relationship between the MSD level II and 14 dB, and a mapping relationship between the MSD level III and 16-18 dB. That is, in the case where the category of the first spectrum combination is the second category, if the MSD level corresponding to the first spectrum combination is the MSD level I, the MSD value of the first spectrum combination is 13 dB, and so on.

[0299] The mapping relationship 3 includes a mapping relationship between the MSD level II and 18 dB, a mapping relationship between the MSD level II and 20 dB, a mapping relationship between the MSD level III and 23-25 dB, and a mapping relationship between the MSD level IV and >25 dB. That is, in the case where the category of the first spectrum combination is the third category, if the MSD level corresponding to the first spectrum combination is the MSD level I, the MSD value of the first spectrum combination is 18 dB, and so on.

[0300] It should be understood that for the correspondence relationship C, the mapping relationship corresponding to the category of each spectrum combination can also be a table individually. For example, in the case where the category of the first spectrum combination is the second category, the network device can determine the first MSD value or the first MSD value interval corresponding to the first MSD level based on the mapping relationship 2 corresponding to the second category. The mapping relationship 2 can be, for example, as shown in Table 14.

[0301] It should be understood that for the mapping relationship corresponding to other spectrum combinations, it is also similar to Table 14, and for the sake of brevity, it will not be shown one by one here.

[0302] It should be noted that the mapping relationship corresponding to any two categories of spectrum combinations in the category set of spectrum combinations can be different; or, alternatively, for part of the categories of spectrum combinations in the category set of spectrum combinations, the mapping relationship corresponding to the part of the categories of spectrum combinations can also be the same. For example, the fifth category and the second category both correspond to the mapping relationship 2, and so on. The present application does not make a specific limitation on this.

[0303] Table 14

[0304] The fourth possible case

[0305] The protocol can predefine or the network device can preconfigure the correspondence relationship D, and the correspondence relationship D includes: the category of the first spectrum combination, the first MSD order set, the first MSD level set, and the third correspondence relationship between the first MSD value set and / or the first MSD value interval set. The first MSD order set includes at least one MSD order.

[0306] Exemplarily, as shown in Table 15, the correspondence relationship D includes: a correspondence relationship between the first category, IMD2, MSD level I, and 15 dB; a correspondence relationship between the second category, IMD2, MSD level I, and 13 dB; and the like. For details, refer to Table 15, which will not be described here.

[0307] In a case where the category of the first spectrum combination is the first category, the third correspondence relationship may, for example, include a correspondence relationship between the first category, IMD2, MSD level I, and 15 dB.

[0308] Alternatively, in a case where the category of the first spectrum combination is the second category, the third correspondence relationship may, for example, include a correspondence relationship between the second category, IMD2, MSD level I, and 13 dB; a correspondence relationship between the second category, IMD3, MSD level II, and 14 dB; a correspondence relationship between the second category, IMD4, MSD level III, and 16-18 dB; wherein IMD2, IMD3, and IMD4 are the first MSD order set; MSD level I, MSD level II, and MSD level III are the first MSD level set; 13 dB and 14 dB are the first MSD numerical set; and 16-18 dB is the first MSD numerical interval set.

[0309] In this way, in a case where the category of the first spectrum combination is the first category and the first spectrum combination corresponds to IMD2, the network device may, based on the correspondence relationship D, determine that the MSD numerical value of the first spectrum combination is 15 dB, and the like.

[0310] Table 15

[0311] As can be seen from Table 15, in a case where the categories of the spectrum combinations are different, the MSD numerical value or the MSD numerical interval corresponding to the same MSD level may be different. For example, in a case where the category of the spectrum combination is the first category, the MSD level I corresponds to the MSD numerical value of 15 dB; in a case where the category of the spectrum combination is the second category, the MSD level I corresponds to the MSD numerical value of 13 dB; and the like.

[0312] In this case, the network device may, based on the first spectrum combination indicated by the first information, determine the IMD order corresponding to the first spectrum combination; in this way, the network device may, based on the category of the first spectrum combination indicated by the second information, the IMD order corresponding to the first spectrum combination, and the correspondence relationship D, determine that the MSD numerical value of the first spectrum combination is the first MSD numerical value, or determine that the MSD numerical value of the first spectrum combination is in the first MSD numerical interval.

[0313] Similar to the third possible case, the correspondence D can also be represented by multiple tables. For example, the correspondence D can also include a mapping relationship of a category corresponding to each spectrum combination in the category set of spectrum combinations. The mapping relationship of a category corresponding to each spectrum combination can refer to the description in the third possible case. In addition, in addition to the mapping relationship of a category corresponding to each spectrum combination in the category set of spectrum combinations, the correspondence D also includes the correspondence between the category of spectrum combinations, the order of IMD and the grade of MSD, which can refer to the description in the second possible case. For the sake of brevity, it will not be listed one by one here.

[0314] In addition to the intermodulation distortion MSD, the MSD value corresponding to other MSD types can also be affected by the order of MSD, which can be shown in the fifth possible case and the sixth possible case.

[0315] The fifth possible case

[0316] The protocol defines or the network device preconfigures the correspondence E, and the correspondence E includes a correspondence between a first order set of MSD and a first grade set of MSD.

[0317] The first order set of MSD includes at least one order of MSD, and the first grade set of MSD includes at least one grade of MSD. The at least one order of MSD and the at least one grade of MSD can be one-to-one correspondence, or each grade of MSD in the at least one grade of MSD can correspond to one or more orders of MSD in the at least one order of MSD. The first order set of MSD includes a first order of MSD, the first grade set of MSD includes a first grade of MSD, and the correspondence E includes a correspondence between the first order of MSD and the first grade of MSD.

[0318] In the case that the first MSD type corresponding to the first spectrum combination is the harmonic MSD, the correspondence E can be as shown in Table 16. Then the correspondence E can include a correspondence between the second harmonic and the MSD grade I, and a correspondence between the third harmonic, the fourth harmonic and the fifth harmonic and the MSD grade II.

[0319] Then in the case that the first MSD type corresponding to the first spectrum combination is the harmonic MSD, if the first order of MSD indicated by the second information is the second harmonic, the network device can determine that the first grade of MSD corresponding to the first spectrum combination is the MSD grade I based on the second harmonic indicated by the second information and the correspondence E; if the first order of MSD indicated by the second information is the third harmonic, the fourth harmonic or the fifth harmonic, the network device can determine that the first grade of MSD corresponding to the first spectrum combination is the MSD grade II based on the second information and the correspondence E.

[0320] Table 16

[0321] In a case where the first MSD type corresponding to the first spectrum combination is the harmonic mixing MSD, the correspondence relationship E can be as shown in Table 17. Then the correspondence relationship E can include: a correspondence relationship of UL1 / DL2 harmonic mixing and the MSD level I; and a correspondence relationship of UL2 / DL3 harmonic mixing and the MSD level II.

[0322] Wherein, the UL1 / DL2 harmonic mixing can represent that the local oscillator harmonic of the uplink band falls into the second harmonic of the downlink band; and the UL2 / DL3 harmonic mixing can represent that the second harmonic of the uplink band falls into the third harmonic of the downlink band.

[0323] Then in a case where the first MSD type corresponding to the first spectrum combination is the harmonic mixing MSD, if the first MSD order indicated by the second information is UL1 / DL3, the network device can determine, based on the UL1 / DL3 and the correspondence relationship E, that the first MSD level corresponding to the first spectrum combination is the MSD level I, and so on.

[0324] Table 17

[0325] In a case where the first MSD type corresponding to the first spectrum combination is the cross-band isolation MSD, the correspondence relationship E can be as shown in Table 18. Then the correspondence relationship E can include: a correspondence relationship of ACLR1 and the MSD level I; a correspondence relationship of ACLR2 and the MSD level II; and a correspondence relationship of >ACLR2 and the MSD level III.

[0326] Then in a case where the first MSD type corresponding to the first spectrum combination is the cross-band isolation MSD, if the first MSD order indicated by the second information is ACLR1, the network device can determine, based on the ACLR1 and the correspondence relationship E, that the first MSD level corresponding to the first spectrum combination is the MSD level I, and so on.

[0327] Table 18

[0328] In a case where the first MSD type corresponding to the first spectrum combination is the intermodulation distortion MSD, the correspondence relationship E is similar to the correspondence relationship B, or the correspondence relationship E is different from the correspondence relationship B in that the correspondence relationship E does not include the category of the spectrum combination. For example, the correspondence relationship E can be similar to Table 10, and is different from Table 10 in that the category of the spectrum combination is not included. Please refer to the description in the foregoing, which is not shown here.

[0329] It should be understood that the correspondence E shown above is a correspondence between the MSD order set corresponding to each MSD type and the first MSD grade. Therefore, the correspondence E can also be understood as a correspondence between the MSD type set, the MSD order set and the first MSD grade. The MSD type set may, but is not limited to, include one or more of the following: intermodulation distortion MSD, harmonic MSD, harmonic mixing MSD or cross-band isolation MSD.

[0330] It should be noted that in this case, the second information may, for example, be used to indicate the first MSD type and the first MSD order of the first MSD type. In this way, the network device can determine the correspondence between the first MSD order set corresponding to the first MSD type and the first MSD grade set based on the first MSD type, and further determine the first MSD grade corresponding to the first spectrum combination based on the correspondence and the first MSD order.

[0331] It should be noted that in the fifth possible case, the mapping relationship between the MSD grade and the MSD numerical interval in the correspondence E may, for example, refer to the first mapping relationship; and / or the mapping relationship between the MSD grade and the MSD numerical value in the correspondence E may, for example, refer to the second mapping relationship. That is, regardless of whether the MSD types are the same or the MSD orders are the same, the MSD numerical value (or MSD numerical interval) corresponding to the same MSD grade is the same.

[0332] In some possible implementations, the MSD numerical value (or MSD numerical interval) corresponding to the MSD grade may also be different as the MSD types are different. This can be specifically shown in the sixth possible case.

[0333] Sixth possible case

[0334] The protocol defines or the network device preconfigures a third mapping relationship corresponding to each MSD type in the MSD type set, and the third mapping relationship includes a mapping relationship between at least one MSD grade and at least one first MSD numerical value and / or at least one MSD numerical interval.

[0335] The MSD type set includes the first MSD type, and the third mapping relationship corresponding to the first MSD type can also be understood as the first mapping relationship and / or the second mapping relationship.

[0336] Exemplarily, the third mapping relationship corresponding to each MSD type in the MSD type set may include one or more of the following mapping relationships: the third mapping relationship corresponding to the intermodulation distortion MSD; the third mapping relationship corresponding to the harmonic MSD; the third mapping relationship corresponding to the harmonic mixing MSD; or, the third mapping relationship corresponding to the cross-band isolation MSD.

[0337] The third mapping relationship corresponding to each MSD type can be different or partially the same.

[0338] Exemplarily, the third mapping relationship corresponding to the intermodulation distortion MSD is shown in Table 7. In the case where the first MSD type is the intermodulation distortion MSD, the network device can determine the first MSD value or the first MSD value interval in combination with Table 7 and Table 10. That is, in combination with the corresponding relationship B shown in Table 10, the category of the first spectrum combination indicated by the first information, and the category of the first spectrum combination indicated by the second information, the network device can determine the first MSD level. Further, in combination with Table 7 and the first MSD level, the network device can determine the first MSD value or the first MSD value interval. For example, in the case where the network device determines that the first MSD level is MSD level I, the network device can determine that the MSD value of the first spectrum combination is > 24 dB based on the mapping relationship between MSD level I and > 24 dB shown in Table 7.

[0339] Alternatively, the third mapping relationship corresponding to the harmonic MSD can be as shown in Table 19. In the case where the first MSD type is the harmonic MSD, the network device can determine the first MSD value or the first MSD value interval in combination with Table 16 and Table 19. That is, in combination with the corresponding relationship E shown in Table 16 and the harmonic order indicated by the second information, the network device can determine the first MSD level. Further, in combination with Table 19 and the first MSD level, the network device can determine the first MSD value or the first MSD value interval. For example, in the case where the network device determines that the first MSD level is MSD level I, the network device can determine that the MSD value of the first spectrum combination is 23.8 dB based on the mapping relationship between MSD level I and 23.8 dB shown in Table 19.

[0340] Table 19

[0341] It should be understood that the third mapping relationship corresponding to the harmonic mixing MSD (cross-band isolation MSD) is similar to the third mapping relationship corresponding to the harmonic MSD, and for the sake of brevity, it will not be shown one by one here.

[0342] It should be noted that the third mapping relationship corresponding to the harmonic mixing MSD (cross-band isolation MSD) can be the same as the third mapping relationship corresponding to the intermodulation distortion MSD, or can be the same as the third mapping relationship corresponding to the harmonic MSD, or can be different from the third mapping relationship corresponding to the intermodulation distortion MSD and the third mapping relationship corresponding to the harmonic MSD. The present application does not make specific limitations on this.

[0343] Alternatively, the third mapping relationship associated with different MSD types can also be represented in the following manner.

[0344] Optionally, the protocol defines or the network device preconfigures a fourth correspondence, which includes the first MSD type, the first MSD level set, and the correspondence between the first MSD value set and / or the first MSD value interval set. The fourth correspondence includes the first MSD type, the first MSD level, and the correspondence between the first MSD value or the first MSD value interval.

[0345] For example, in the case of the first MSD type being the intermodulation distortion MSD, the fourth correspondence can be shown in Table 20. Then the fourth correspondence includes the correspondence of IMD2, the first category, the MSD level I, and >24dB, and so on. For brevity, details are not described here, and can be referred to Table 20.

[0346] In the case of the first MSD type being the intermodulation distortion MSD, the network device can determine the IMD order corresponding to the first spectrum combination based on the first information, and can determine the category of the first spectrum combination based on the second information. In this way, the network device can determine the MSD value of the first spectrum combination (or determine the first MSD value interval in which the MSD value of the first spectrum combination is located) based on the correspondence F associated with the intermodulation distortion MSD, the IMD order corresponding to the first spectrum combination, and the category of the first spectrum combination.

[0347] Alternatively, the category of the spectrum combination can not be included in Table 20. Then the fourth correspondence includes the correspondence of IMD2, the MSD level I, and >24dB, and so on.

[0348] Table 20

[0349] Alternatively, in the case of the first MSD type being the harmonic MSD, the fourth correspondence can be shown in Table 21. Then the fourth correspondence includes the correspondence of the second harmonic, the MSD level I, and 23.8dB; the correspondence of the third harmonic, the MSD level II, and 10.5dB, and so on. For brevity, details are not described here, and can be referred to Table 21.

[0350] Table 21

[0351] It can be seen from Table 20 and Table 21 that in the case of different MSD types, the same MSD level can correspond to different MSD values or MSD value intervals. For example, in the case of the MSD type being the intermodulation distortion MSD, the MSD level I corresponds to >24dB, and in the case of the MSD type being the harmonic MSD, the MSD level I corresponds to 23.8dB.

[0352] In the case that the first MSD type is harmonic MSD, the network device can determine the harmonic order based on the second information. In this way, the network device can determine the MSD value of the first spectrum combination (or determine the first MSD value interval in which the MSD value of the first spectrum combination is located) based on the fourth correspondence relationship and the harmonic order.

[0353] In the case that the first MSD type is harmonic mixing MSD or cross-band isolation, the fourth correspondence relationship is also similar to Table 21, and for brevity, it will not be shown one by one here.

[0354] In addition, in the sixth case, the second information can indicate the first MSD type corresponding to the first spectrum combination. Then the network device can determine the third mapping relationship corresponding to the first MSD type based on the first MSD type corresponding to the first spectrum combination, and further determine the first MSD value or the first MSD value interval corresponding to the first MSD level based on the third mapping relationship.

[0355] In addition to the category of the spectrum combination and the MSD type, different MSD orders can also correspond to different mapping relationships. Specifically, it can be shown as the seventh possible case.

[0356] Seventh possible case

[0357] The protocol defines or the network device preconfigures the fifth correspondence relationship, and the fifth correspondence relationship includes: the first MSD order, the first MSD level set, and the correspondence relationship between the first MSD value interval set and / or the first MSD value set.

[0358] Taking the first MSD order as the IMD order as an example, the fifth correspondence relationship can be shown as Table 22, for example. It can be seen from Table 22 that in the case that the first MSD order is different, the mapping relationship between the first MSD level set, and the first MSD value interval set and / or the first MSD value set can be different.

[0359] For example, in the case that the first MSD order is IMD2, the fifth correspondence relationship includes the correspondence relationship between IMD2, the first category, MSD level I, and > 24dB; and the correspondence relationship between IMD2, the second category, MSD level I, and > 24dB.

[0360] In the case that the first MSD order is IMD3, the fifth correspondence relationship includes the correspondence relationship between IMD3, the first category, MSD level III, and 15dB; the correspondence relationship between IMD3, the second category, MSD level IV, and 13dB; the correspondence relationship between IMD3, the third category, MSD level I, and 25dB; and the correspondence relationship between IMD3, the fourth category, MSD level II, and 20dB. And so on.

[0361] In the case that the first MSD order is IMD2, the MSD level I corresponds to > 24 dB; in the case that the first MSD order is IMD3, the MSD level I corresponds to 25 dB. That is, the protocol predefines or the network device preconfigures the mapping relationship corresponding to each MSD order. The mapping relationship corresponding to each MSD order can be the same or different.

[0362] Table 22

[0363] Alternatively, the fifth correspondence relationship can also be replaced by the following form.

[0364] Optionally, the protocol predefines or the network device preconfigures the fourth mapping relationship corresponding to each of the first MSD orders. For example, the fourth mapping relationship corresponding to IMD3 and IMD4 can be as shown in Table 7. Then, after the network device determines the first MSD level based on Table 10, the first MSD value or the first MSD value interval corresponding to the first MSD level can be determined based on Table 7.

[0365] In addition to the above several cases, the protocol can predefine or the network device can preconfigure the correspondence relationship between the MSD level and at least one spectrum combination. Specifically, it can be as shown in the eighth possible case.

[0366] The eighth possible case

[0367] The protocol can predefine or the network device can preconfigure the sixth correspondence relationship, and the sixth correspondence relationship includes the correspondence relationship between the first MSD level, the first spectrum combination, and the information related to the frequency band in the first spectrum combination.

[0368] For example, the information related to the frequency band in the first spectrum combination can include one or more of the following, but is not limited to: frequency point, bandwidth, number of RB allocations, or duplex mode.

[0369] Exemplarily, taking the first spectrum combination as CA_n1-n3 and the first MSD level as MSD level I as an example, the sixth correspondence relationship can be as shown in Table 23. The difference between Table 23 and Table 3 is that Table 3 includes the MSD value (23 dB) corresponding to CA_n1-n3. While Table 23 includes the MSD level (MSD level II) corresponding to CA_n1-n3.

[0370] In this case, the second information can be used to indicate the first MSD level, and the network device can determine the information related to the frequency bands in the first spectrum combination based on the first MSD level indicated by the second information, the first spectrum combination indicated by the first information, and the sixth correspondence relationship. For example, according to Table 23, the network device can determine that the uplink and downlink bandwidths are 5 MHz, the number of uplink RBs allocated is 25 RBs, and the like. In this way, when the network device determines to configure the first spectrum combination for the terminal device, the terminal device can be configured with the first spectrum combination based on the information related to the frequency bands in the first spectrum combination.

[0371] Table 23

[0372] It can be understood that the network device can determine the MSD value of the first spectrum combination or the MSD value interval in which the MSD value of the first spectrum combination is located based on the first MSD level reported by the terminal device and the first mapping relationship and / or the second mapping relationship.

[0373] In this way, the network device can determine whether the first spectrum combination meets the communication requirement based on the MSD value of the first spectrum combination (or the MSD value interval in which the MSD value of the first spectrum combination is located).

[0374] For example, when the MSD value of the first spectrum combination is small (or the MSD value in the MSD value interval in which the MSD value of the first spectrum combination is located is small), for example, the MSD value of the first spectrum combination is less than threshold 1 (or the minimum MSD value or the maximum MSD value in the MSD value interval in which the MSD value of the first spectrum combination is located is less than threshold 2), the interference to the received signal of the terminal device is small when the terminal device communicates based on the first spectrum combination, and thus the first spectrum combination can meet the communication requirement. Therefore, the network device can determine to configure the first spectrum combination for the terminal device.

[0375] In addition, when the MSD value of the first spectrum combination is large (or the MSD value in the MSD value interval in which the MSD value of the first spectrum combination is located is large), for example, the MSD value of the first spectrum combination is greater than or equal to threshold 3 (or the minimum MSD value or the maximum MSD value in the MSD value interval in which the MSD value of the first spectrum combination is located is greater than or equal to threshold 4), the interference to the received signal of the terminal device is large when the terminal device communicates based on the first spectrum combination, and thus the first spectrum combination can not meet the communication requirement. Therefore, the network device can determine not to configure the first spectrum combination for the terminal device.

[0376] It should be noted that, in the embodiments of the present application, the network device pre-configuration can also be understood as the network device configuring by sending signaling to the terminal device. For example, the network device pre-configuring the first correspondence relationship can be understood as that the method 300 further includes that the network device sends information for indicating the first correspondence relationship to the terminal device. Correspondingly, the terminal device receives the information for indicating the first correspondence relationship from the network device. Similarly, in the case that the network device pre-configures other correspondence relationships or mapping relationships, the information for indicating the first correspondence relationship can be replaced by information for indicating other correspondence relationships or mapping relationships. For the sake of brevity, they are not listed one by one here.

[0377] It should also be noted that the schemes corresponding to the first possible case to the eighth possible case shown in the above can be implemented alone or in combination. The present application does not make specific limitations on this.

[0378] It should also be understood that, for the tables shown in the embodiments of the present application, any table can be split into multiple tables, or any multiple tables can be combined into one table. The present application does not make specific limitations on this.

[0379] It can be understood that, in the embodiments of the present application, the first MSD level reported by the terminal device can be reported based on the MSD value of the first spectrum combination calculated by the terminal device. The present application does not make specific limitations on this.

[0380] Next, taking the first spectrum combination as the spectrum combination CA_3A-42 and the first MSD type as the intermodulation distortion MSD as an example, the parameters used by the terminal device to calculate the MSD value of the first spectrum combination are exemplarily described in combination with Table 24 to Table 28.

[0381] It can be understood that the parameters shown in Table 24 to Table 28 are only examples for calculating the intermodulation distortion MSD value of the spectrum combination CA_3A-42. More or fewer parameters can also be used in the actual process of calculating the extreme MSD value of the terminal device. And part of the parameters used can also be replaced by other values. The parameters shown in Table 24 to Table 28 do not constitute a limitation on the embodiments of the present application.

[0382] Table 24 shows the performance parameters of various elements in the terminal device corresponding to different order intermodulation points. For example, the performance parameter of the antenna switch corresponding to the second order intermodulation point is 112 dBm, the performance parameter of the antenna switch corresponding to the fifth order intermodulation point is 53 dBm, and the difference between the two is 59 dBm; the performance parameter of the triplexer corresponding to the second order intermodulation point is 115 dBm, the performance parameter of the triplexer corresponding to the fourth order intermodulation point is 55 dBm, and the difference between the two is 60 dBm, and so on. As can be seen, with different orders of IMD, the difference in performance parameters used by the terminal device when calculating the MSD value is large. Therefore, with different orders of IMD, the difference in MSD values calculated by the terminal device can be large.

[0383] Table 24

[0384] Table 25 shows some typical values of isolation parameters related to the isolation of the main antenna and the diversity antenna, the power amplifier (PA), the duplexer, and the triplexer.

[0385] It can be understood that the isolation between the main antenna and the diversity antenna, the PCB isolation, and the use of filters and multiplexers can isolate signals between different frequency bands, thereby reducing interference. Among them, the isolation parameters corresponding to PA(out) to PA(in), PA(out) to PA(in), LNA(in) to PA(out), and the duplexer are large, indicating that the degree of signal attenuation can be large.

[0386] Table 25

[0387] Table 26 shows the power budget of each component in the terminal device corresponding to the B3 frequency band and the power budget of each component in the terminal device corresponding to the B42 frequency band. The power budget refers to the relationship between the transmit power and the receive power in a specific frequency band.

[0388] Table 26

[0389] Table 27 shows the power budget of each component in the terminal device corresponding to the B3 frequency band and the power budget of each component in the terminal device corresponding to the B42 frequency band. The power budget refers to the relationship between the transmit power and the receive power in a specific frequency band.

[0390] Table 27

[0391] Table 28 shows the thermal noise corresponding to the main path and the diversity path, and the IMD corresponding to the main path and the diversity path. After maximum ratio combining (MRC), the MSD calculated by the terminal device is 28.9 dB.

[0392] Table 28

[0393] It can be seen from Tables 24 to 28 that in the process of calculating the MSD value (28.9 dB) by the terminal device, a plurality of common parameters are used, such as antenna port output power, main antenna and diversity antenna isolation, PCB isolation, power amplifier gain, and duplexer insertion loss.

[0394] The performance parameters used by the terminal device to calculate the MSD value differ greatly with different IMD orders, and the receive / transmit rejection of the filter in the terminal device differs greatly with different frequency bands (which can also be referred to as frequency ranges). The receive / transmit rejection of the filter refers to the signal isolation capability of the filter between different frequency bands, which is usually expressed in decibels (dB). It measures the degree of interference on one frequency band when the filter transmits a signal on another frequency band.

[0395] It should be noted that the size of the serial number of each method described above does not mean the execution order, and the execution order of each process should be determined according to its function and inherent logic.

[0396] The communication method of the embodiments of the present application is described in detail above in combination with FIG. 3. The communication apparatus of the embodiments of the present application is described in detail below in combination with FIGS. 4 to 6. The communication apparatus includes modules or units for executing each part of the corresponding modules or units in the above-described embodiments. The modules or units can be software, hardware, or a combination of software and hardware. The communication apparatus is only briefly exemplified below, and for the details of the scheme implementation, reference can be made to the description of the foregoing method embodiments, which will not be described here again.

[0397] FIG. 4 is a schematic block diagram of a communication apparatus 400 provided by an embodiment of the present application. As shown in FIG. 4, the communication apparatus 400 includes a first transceiver module 401 and a second transceiver module 402.

[0398] In a possible implementation, the communication apparatus 400 is configured to implement the steps corresponding to the terminal device in the method 300 described above.

[0399] The first transceiver module 401 is configured to send first information to the network device, the first information being used to indicate a first spectrum combination; and the second transceiver module 402 is configured to send second information to the network device, the second information being used to indicate one or more of the following: a first maximum sensitivity degradation (MSD) level corresponding to the first spectrum combination; a first MSD type corresponding to the first spectrum combination; a first MSD order of the first MSD type; or a category of the first spectrum combination, wherein the category of the first spectrum combination is related to frequency ranges to which at least two frequency bands in the first spectrum combination respectively belong, the at least two frequency bands generating a first MSD value of the first spectrum combination; the first MSD type, the first MSD order, and the category of the first spectrum combination are associated with the first MSD level; wherein the first MSD level has a mapping relationship with a first MSD value interval, and the first MSD value interval contains the first MSD value; or the first MSD level has a mapping relationship with the first MSD value, and the first MSD value is the first MSD value.

[0400] Optionally, the first MSD level belongs to a first MSD level set, the first MSD value interval belongs to a first MSD value interval set, the first MSD level set and the first MSD value interval set have a first mapping relationship, and the first mapping relationship includes a mapping relationship between the first MSD level and the first MSD value interval; wherein the first mapping relationship is predefined or preconfigured, the first MSD level set contains at least one MSD level, and the first MSD value interval set contains at least one MSD value interval; or,

[0401] The first MSD value belongs to a first MSD value set, and the first MSD level set and the first MSD value set have a second mapping relationship, and the second mapping relationship includes a mapping relationship between the first MSD level and the first MSD value; wherein the second mapping relationship is predefined or preconfigured, and the first MSD value set contains at least one MSD value.

[0402] Optionally, the category of the first spectrum combination, the first MSD level, and the MSD order of the intermodulation distortion (IMD) have a first corresponding relationship, and the first corresponding relationship is predefined or preconfigured.

[0403] Optionally, the frequency range includes a first range, a second range, and a third range, frequencies in the first range are less than or equal to a first threshold, frequencies in the second range are greater than the first threshold and less than or equal to a second threshold, frequencies in the third range are greater than the second threshold, and the first range, the second range, and the third range are predefined or preconfigured.

[0404] Optionally, the first spectrum combination includes a first frequency band and a second frequency band, and in a case where frequency points of the first frequency band belong to a first range and frequency points of the second frequency band belong to a second range, a category of the first spectrum combination is a first category corresponding to the first range and the second range.

[0405] In another possible implementation, the communication apparatus 400 is configured to implement the steps corresponding to the network device in the method 300.

[0406] The first transceiver module 401 is configured to receive first information from the terminal device, the first information being used to indicate a first spectrum combination; and the second transceiver module 402 is configured to receive second information from the terminal device, the second information being used to indicate one or more of the following: a first maximum sensitivity degradation (MSD) level corresponding to the first spectrum combination; a first MSD type corresponding to the first spectrum combination; a first MSD order of the first MSD type; or a category of the first spectrum combination, wherein the category of the first spectrum combination is related to frequency ranges to which at least two frequency bands in the first spectrum combination respectively belong, the at least two frequency bands generating a first MSD value of the first spectrum combination; the first MSD type, the first MSD order, and the category of the first spectrum combination are associated with the first MSD level; wherein the first MSD level has a mapping relationship with a first MSD value interval, and the first MSD value interval contains the MSD value of the first spectrum combination; or the first MSD level has a mapping relationship with the first MSD value, and the first MSD value is the MSD value of the first spectrum combination.

[0407] Optionally, the apparatus 400 further includes a processing module 403 configured to determine, according to the first MSD level, whether to configure the first spectrum combination for the terminal device or not.

[0408] Optionally, the first MSD level belongs to a first MSD level set, the first MSD value interval belongs to a first MSD value interval set, the first MSD level set and the first MSD value interval set have a first mapping relationship, and the first mapping relationship includes a mapping relationship between the first MSD level and the first MSD value interval; wherein the first mapping relationship is predefined or preconfigured, the first MSD level set contains at least one MSD level, and the first MSD value interval set contains at least one MSD value interval; or,

[0409] The first MSD value belongs to a first MSD value set, the first MSD level set and the first MSD value set have a second mapping relationship, and the second mapping relationship includes a mapping relationship between the first MSD level and the first MSD value; wherein the second mapping relationship is predefined or preconfigured, and the first MSD value set contains at least one MSD value.

[0410] Optionally, there is a first correspondence relationship between the category of the first spectrum combination, the first MSD level, and the MSD order of the intermodulation distortion MSD; the first correspondence relationship is predefined or preconfigured.

[0411] Optionally, the frequency range includes a first range, a second range, and a third range, frequencies in the first range are less than or equal to a first threshold, frequencies in the second range are greater than the first threshold and less than or equal to a second threshold, frequencies in the third range are greater than the second threshold, the first range, the second range, and the third range are predefined or preconfigured.

[0412] Optionally, the first spectrum combination includes a first frequency band and a second frequency band, in a case where frequency points of the first frequency band belong to the first range and frequency points of the second frequency band belong to the second range, the category of the first spectrum combination is a first category corresponding to the first range and the second range.

[0413] Optionally, the apparatus 400 further includes a processing module 403 configured to determine, according to the first correspondence relationship, the category of the first spectrum combination indicated by the second information, and the MSD order of the intermodulation distortion MSD, the first MSD level corresponding to the first spectrum combination.

[0414] Optionally, the apparatus 400 further includes a processing module 403 configured to determine, according to the first MSD level and a mapping relationship between the first MSD level and a first MSD numerical interval, that the MSD numerical value of the first spectrum combination is in the first MSD numerical interval; or, configured to determine, according to the first MSD level and a mapping relationship between the first MSD level and a first MSD numerical value, that the MSD numerical value of the first spectrum combination is the first MSD numerical value.

[0415] Optionally, the apparatus 400 further includes a processing module 403 configured to determine, according to the first MSD level, to configure the first spectrum combination for the terminal device or not to configure the first spectrum combination.

[0416] It should be understood that the communication apparatus 400 herein is embodied in the form of functional modules. The term "module" herein can refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (for example, a shared processor, a dedicated processor, or a group processor and the like) and a memory for executing one or more software or firmware programs, a combinational logic circuit, and / or other suitable components that support the described functions. In an optional example, those skilled in the art can understand that the communication apparatus 400 can be embodied as the terminal device or the network device in the above embodiments, and the communication apparatus 400 can be used to execute the respective processes and / or steps corresponding to the terminal device or the network device in the above method embodiments. To avoid repetition, details are not described here.

[0417] The communication apparatus 400 has functions to implement the corresponding steps performed by the terminal device or the network device in the above method; the above functions can be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions. In the embodiments of the present application, the communication apparatus 400 in FIG. 4 can also be a chip, for example: SOC.

[0418] FIG. 5 shows a structural schematic diagram of a communication apparatus 500 provided by an embodiment of the present application. The communication apparatus 500 includes a processor 501, a transceiver 502, and a memory 503. The processor 501, the transceiver 502, and the memory 503 communicate with each other through an internal connection path. The memory 503 is configured to store instructions, such as computer degree codes, etc. The processor 501 is configured to execute the instructions stored in the memory 503 to control the transceiver 502 to transmit and / or receive signals.

[0419] It should be understood that the communication apparatus 500 can be specifically the network device or the terminal device in the above embodiments, and can be used to execute the respective steps and / or processes corresponding to the network device or the terminal device in the above method embodiments. Optionally, the memory 503 can include a read-only memory and a random access memory, and provide instructions and data for the processor. A part of the memory can also include a non-volatile random access memory. For example, the memory can also store device type information. The processor 501 can be configured to execute the instructions stored in the memory, and when the processor 501 executes the instructions stored in the memory, the processor 501 is configured to execute the respective steps and / or processes of the above method embodiments. The transceiver 502 can include a transmitter 5021, a receiver 5022, and an antenna 5023. The transmitter 5021 can be configured to implement the respective steps and / or processes corresponding to the transmitter for performing the transmitting action. For example, the transmitter 5021 can be configured to transmit information to another device through the antenna 5023. The receiver 5022 can be configured to implement the respective steps and / or processes corresponding to the receiver for performing the receiving action. For example, the receiver 5022 can be configured to receive information from another device through the antenna 5023.

[0420] It should be understood that in the embodiments of the present application, the processor can be a central processing unit (CPU), and the processor can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0421] In the implementation process, each step of the above method can be completed by integrated logic circuit of hardware in the processor or instruction in the form of software. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as hardware processor execution completion, or executed by hardware and software module combination in the processor. The software module can be located in the mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, register, etc. The storage medium is located in the memory, and the processor executes the instruction in the memory, and combines the hardware to complete the steps of the above method. To avoid repetition, it will not be described in detail here.

[0422] Fig. 6 is a schematic diagram of an O-RAN system according to an embodiment of the present application. The O-RAN system can also include other components in addition to the components shown in Fig. 6.

[0423] As shown in Fig. 6, the network device in the embodiment of the present application can also be referred to as an access network device. The access network device (i.e. RAN, which can be eNB or gNB or next generation access network device) can communicate with the core network (CN) through backhaul and communicate with the terminal device through air interface.

[0424] Specifically, the baseband unit (BBU) in the access network device can communicate with the core network device through backhaul; the radio unit (RU) in the access network device can communicate with at least one terminal device through air interface. The BBU communicates with at least one RU through fronthaul, and the BBU and the RU can be co-located or not.

[0425] The BBU includes at least one control unit (CU) and at least one distributed unit (DU), which can communicate through at least one midhaul.

[0426] In some examples, the CU is a logical node that carries radio resource control (RRC) layer, service data adaptation protocol (SDAP) layer, packet data convergence protocol (PDCP) layer, and other control functions of the access network device. The CU is connected to network nodes such as core network devices through some interfaces, which can be E2 interface, etc. Optionally, the CU can have part of the functions of the core network device. The CU (e.g., PDCP layer and higher layers) is connected to the DU (e.g., RLC layer and lower layers) through some interfaces, which can be F1 interface, etc. In some examples, these interfaces (e.g., F1 interface) can provide control plane (C-Plane) and user plane (U-Plane) functions, such as interface management, system information management, UE context management, and RRC message transmission, etc. F1AP is an application protocol of F1 interface, which defines signaling procedures of F1 in some examples. The F1 interface supports control plane F1-C and user plane F1-U.

[0427] In some examples, the CU can be split into a CU-CP (control unit-control plane) and a CU-UP (control unit-user plane), where the CU-CP is a logical node carrying the RRC layer and the PDCP-C (control plane part of PDCP) layer, used to implement the control plane function of the CU. The CU-CP can interact with a network element in the core network used to implement the control plane function. The network element in the core network used to implement the control plane function can be an access and mobility function network element, such as an access and mobility management function (AMF) in a 5G system. The AMF network element is used to be responsible for mobility management in a mobile network, such as location updating of a terminal device, registration of the terminal device to a network, handover of the terminal device, and the like. The CU-UP is a logical node carrying the SDAP layer and the PDCP-U (user plane part of PDCP) layer, used to implement the user plane function of the CU. The CU-UP can interact with a network element in the core network used to implement the user plane function. The network element in the core network used to implement the user plane function, for example, a user plane function (UPF) in a 5G system, is used to be responsible for forwarding and receiving data in a terminal device. The above configuration of the CU and the DU is merely an example, and the CU and the DU can have functions according to needs. For example, the CU or the DU can be configured to have more protocol layer functions, or the CU or the DU can be configured to have partial processing functions of the protocol layer. For example, part of the functions of the RLC layer and the functions of the protocol layer above the RLC layer are arranged in the CU, and the remaining functions of the RLC layer and the functions of the protocol layer below the RLC layer are arranged in the DU. For another example, the functions of the CU or the DU can be divided according to the service type or other system requirements, for example, according to the delay. The functions that need to meet the delay requirement are arranged in the DU, and the functions that do not need to meet the delay requirement are arranged in the CU.

[0428] In some examples, a DU is a logical node that hosts radio link control (RLC) layer, medium access control (MAC) layer, higher physical layer (higher PHY) layer, and other functions. In some examples, a DU can control at least one RU. The DU is connected with the RUs through some interfaces, which can be a fronthaul interface. In some examples, the higher PHY layer includes parts of PHY layer processing, such as forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, and other processing functions.

[0429] In some examples, an RU is a logical node that hosts lower physical layer (lower PHY) and radio frequency (RF) processing, which can also be referred to as radio frequency chain (RF chain). In some examples, an RU can be a 3GPP transmission reception point (TRP) or a remote radio head (RRH) or other similar functional entity. In some examples, the low-PHY includes parts of PHY processing, such as fast Fourier transform (FFT), inverse fast fourier transformation (IFFT), digital beamforming and filtering, and other processing functions. The RU communicates with one or more UEs through a wireless link.

[0430] The DU and the RU can be co-located or not co-located. The DU and the RU exchange control plane information and user plane information via a lower-layer split CUS-plane (LLS-CUS) interface through a fronthaul link. The LLS-CUS can include a LLS-C interface and a LLS-U interface that provide control plane (C-plane) and user plane (U-plane), respectively. In some examples, the control plane (C-plane) refers to real-time control between the DU and the RU. The DU and the RU exchange management information via a LLS-M interface of the fronthaul link, and the management plane (M-plane) refers to non-real-time management operation between the DU and the RU.

[0431] The DU and the RU can cooperate to jointly implement the functions of the PHY layer. One DU can be connected with one or more RUs. The functions of the DU and the RU can be configured in various manners according to design. For example, the DU is configured to implement baseband functions, and the RU is configured to implement radio frequency functions. For another example, the DU is configured to implement high-layer functions in the PHY layer, and the RU is configured to implement low-layer functions in the PHY layer or implement the low-layer functions and radio frequency functions. The high-layer functions in the PHY layer can include a part of functions of the PHY layer that are closer to the MAC layer, and the low-layer functions in the PHY layer can include another part of functions of the PHY layer that are closer to the radio frequency side.

[0432] In different systems, the CU (or CU-CP and CU-UP), the DU, or the RU can also have different names, but those skilled in the art can understand their meanings. For example, in an ORAN system, the CU can also be referred to as an O-CU (open CU), the DU can also be referred to as an O-DU, the CU-CP can also be referred to as an O-CU-CP, the CU-UP can also be referred to as an O-CU-UP, and the RU can also be referred to as an O-RU. For the convenience of description, the CU, the CU-CP, the CU-UP, the DU, and the RU are taken as examples for description in this application.

[0433] The application also provides a computer readable storage medium for storing a computer program for implementing the method shown in the above method embodiments.

[0434] The application also provides a computer program product including a computer program (also referred to as code or instructions), which, when running on a computer, can execute the method shown in the above method embodiments.

[0435] Those of ordinary skill in the art can realize that the modules and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized in electronic hardware or a combination of computer software and electronic hardware. Whether the functions are executed in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the application.

[0436] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described system, device, and module can refer to the corresponding processes in the foregoing method embodiments, which will not be described here.

[0437] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other manners. For example, the described device embodiments are merely schematic. For example, the division of the modules is merely logical function division. There can be another division manner for the actual implementation, for example, multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections can be indirect couplings or communication connections through some interfaces, devices or modules, and can be in electrical, mechanical or other forms.

[0438] The modules illustrated as separated components can or can not be physically separated, and the components illustrated as modules can or can not be physical modules, i.e., can be located in one place, or can be distributed to multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the purpose of the embodiment.

[0439] In addition, the functional modules in each embodiment of the present application can be integrated into a processing module, or each module can be physically present alone, or two or more modules can be integrated into one module.

[0440] If the functions are realized in the form of software function modules and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application can be embodied in the form of a software product in essence or the part of the technical solutions that make contributions to the prior art, or part of the technical solutions. The computer software product is stored in a storage medium, and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0441] The above description is merely a specific implementation of the present application, but the protection scope of the embodiments of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the embodiments of the present application, which should be covered within the protection scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application should be subject to the protection scope of the claims.

Claims

1. A communication method characterized by comprising: comprise: sending first information, the first information being used for indicating a first spectrum combination; sending second information, the second information being used for indicating one or more of the following: a first maximum sensitivity degradation (MSD) level corresponding to the first spectrum combination; a first MSD type corresponding to the first spectrum combination; a first MSD order of the first MSD type; or, a category of the first spectrum combination, wherein the category of the first spectrum combination is related to frequency ranges to which at least two frequency bands of the first spectrum combination belong respectively, the at least two frequency bands resulting in a MSD value of the first spectrum combination, the first MSD type, the first MSD order and the category of the first spectrum combination being associated with the first MSD level; wherein the first MSD level has a mapping relationship with a first MSD value interval, the first MSD value interval containing the MSD value of the first spectrum combination; or, the first MSD level has a mapping relationship with a first MSD value, the first MSD value being the MSD value of the first spectrum combination.

2. The method of claim 1, wherein, the first MSD level belongs to a first MSD level set, the first MSD value interval belongs to a first MSD value interval set, the first MSD level set and the first MSD value interval set have a first mapping relationship, the first mapping relationship comprising a mapping relationship between the first MSD level and the first MSD value interval; wherein the first mapping relationship is predefined or preconfigured, the first MSD level set contains at least one MSD level, and the first MSD value interval set contains at least one MSD value interval; or, the first MSD value belongs to a first MSD value set, the first MSD level set and the first MSD value set have a second mapping relationship, the second mapping relationship comprising a mapping relationship between the first MSD level and the first MSD value; wherein the second mapping relationship is predefined or preconfigured, and the first MSD value set contains at least one MSD value.

3. The method according to claim 1 or 2, characterized in that, the category of the first spectrum combination, the first MSD level and a MSD order of an intermodulation distortion (IMD) have a first correspondence relationship, and the first correspondence relationship is predefined or preconfigured.

4. The method according to any one of claims 1 to 3, characterized in that, the frequency ranges comprise a first range, a second range and a third range, frequencies in the first range are less than or equal to a first threshold value, frequencies in the second range are greater than the first threshold value and less than or equal to a second threshold value, frequencies in the third range are greater than the second threshold value, and the first range, the second range and the third range are predefined or preconfigured.

5. The method of claim 4, wherein, the first spectrum combination comprises a first frequency band and a second frequency band, and in a case where a frequency point of the first frequency band belongs to the first range and a frequency point of the second frequency band belongs to the second range, the category of the first spectrum combination is a first category corresponding to the first range and the second range.

6. A communication method characterized by comprising: comprise: receiving first information, the first information being used for indicating a first spectrum combination; receive second information, the second information being used to indicate one or more of: a first maximum sensitivity degradation (MSD) level corresponding to the first spectrum combination; a first MSD type corresponding to the first spectrum combination; a first MSD order of the first MSD type; or a category of the first spectrum combination, wherein the category of the first spectrum combination is related to frequency ranges to which at least two frequency bands of the first spectrum combination respectively belong, the at least two frequency bands generating a first MSD value of the first spectrum combination; the first MSD type, the first MSD order, and the category of the first spectrum combination being associated with the first MSD level; wherein the first MSD level has a mapping relationship with a first MSD value interval, the first MSD value interval containing the MSD value of the first spectrum combination; or the first MSD level has a mapping relationship with a first MSD value, the first MSD value being the MSD value of the first spectrum combination.

7. The method of claim 6, wherein, the first MSD level belongs to a first MSD level set, the first MSD value interval belongs to a first MSD value interval set, the first MSD level set and the first MSD value interval set have a first mapping relationship, the first mapping relationship including a mapping relationship between the first MSD level and the first MSD value interval; wherein the first mapping relationship is predefined or preconfigured, the first MSD level set contains at least one MSD level, and the first MSD value interval set contains at least one MSD value interval; or the first MSD value belongs to a first MSD value set, the first MSD level set and the first MSD value set have a second mapping relationship, the second mapping relationship including a mapping relationship between the first MSD level and the first MSD value; wherein the second mapping relationship is predefined or preconfigured, and the first MSD value set contains at least one MSD value.

8. The method according to claim 6 or 7, characterized in that, the category of the first spectrum combination, the first MSD level, and an MSD order of an intermodulation distortion (IMD) have a first correspondence relationship; the first correspondence relationship is predefined or preconfigured.

9. The method according to any one of claims 6-8, characterized in that, the frequency range includes a first range, a second range, and a third range, frequencies in the first range are less than or equal to a first threshold, frequencies in the second range are greater than the first threshold and less than or equal to a second threshold, frequencies in the third range are greater than the second threshold, and the first range, the second range, and the third range are predefined or preconfigured.

10. The method of claim 9, wherein, the first spectrum combination includes a first frequency band and a second frequency band, and in a case where a frequency point of the first frequency band belongs to the first range and a frequency point of the second frequency band belongs to the second range, the category of the first spectrum combination is a first category corresponding to the first range and the second range.

11. The method according to any one of claims 8-10, characterized in that, the method further comprises: According to the first correspondence relationship, the category of the first spectrum combination indicated by the second information, and a MSD order of a intermodulation distortion (MSD), a first MSD level corresponding to the first spectrum combination is determined.

12. The method according to any one of claims 6-11, characterized in that, The method further includes: According to the first MSD level, and a mapping relationship between the first MSD level and the first MSD numerical interval, it is determined that the MSD numerical value of the first spectrum combination is in the first MSD numerical interval; or, According to the first MSD level, and a mapping relationship between the first MSD level and the first MSD numerical value, it is determined that the MSD numerical value of the first spectrum combination is the first MSD numerical value.

13. The method according to any one of claims 6-12, characterized in that, The method further includes: According to the first MSD level, it is determined to configure the first spectrum combination or not to configure the first spectrum combination.

14. A communications device, characterized by The method further includes: The method further includes:

15. A communications device, characterized by A processor coupled with a memory, the memory being configured to store a computer program, when the processor invokes the computer program, the computer program causes the apparatus to execute the method according to any one of claims 1 to 5, or the method according to any one of claims 6 to 13. A computer program product, the computer program product comprising instructions for causing a computer to carry out the method according to any one of claims 1 to 5, or the method according to any one of claims 6 to 13.

16. A computer-readable storage medium, characterized in that, The instructions, when executed on a computer, cause the computer to carry out the method according to any one of claims 1 to 5, or the method according to any one of claims 6 to 13.

17. A computer program product comprising instructions therein, wherein the computer program product is characterised in that, ​

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