Data processing method, device and system, electronic device, medium

Abstract

The present application provides a data processing method, device and system, electronic device, and computer-readable storage medium. The data processing method includes: obtaining passive intermodulation information of a first receiving channel, and reporting the passive intermodulation information of the first receiving channel to a second node; receiving an adjustment instruction sent by the second node and obtained according to the passive intermodulation information; wherein the adjustment instruction includes: information of the second receiving channel, the second receiving channel being a receiving channel in the first receiving channel that needs to discard data; and discarding part or all of the data of the second receiving channel.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communications, and in particular, to a data processing method, device and system, an electronic device, and a computer-readable storage medium. Background Art

[0002] In the early stage of wireless communication development of the second generation (2G, the Second Generation) and the third generation (3G, the Third Generation), the carrier bandwidth was narrow, the spectrum owned by operators was generally narrow, the passive intermodulation generated by base station transmission would not fall within its own receiving band, the impact of passive intermodulation was not prominent, and operators generally did not pay much attention to the passive intermodulation problem of antenna feed system. However, according to the actual network test results of a domestic operator, the passive intermodulation value of the antenna feed system is generally around 110dBc-130dBc, far from the ideal 150dBc.

[0003] With the development of the fourth generation mobile communication technology (4G, the Third Generation) and the fifth generation mobile communication technology (5G, the Fifth Generation), the carrier bandwidth is getting larger and larger. The single carrier bandwidth of the new wireless (NR, New Radio) can reach 50 MHz. Passive intermodulation problems are very likely to occur, especially in the 900MHz, 1800MHz and other frequency bands. In addition, with the rise of operator network sharing, the carrier bandwidth and spectrum span are further increased, and the passive intermodulation effect of the antenna feed system is further aggravated. Equipment providers and network operators are studying methods and measures to reduce the passive intermodulation effect of the antenna feed system.

[0004] Current methods for reducing the impact of passive intermodulation are not ideal. Summary of the invention

[0005] Embodiments of the present application provide a data processing method, device and system, electronic device, and computer-readable storage medium.

[0006] In a first aspect, an embodiment of the present application provides a data processing method, including:

[0007] Acquire passive intermodulation information of the first receiving channel, and report the passive intermodulation information of the first receiving channel to the second node;

[0008] An adjustment instruction obtained according to the passive intermodulation information and sent by the second node is received; wherein the adjustment instruction includes: information of the second receiving channel, where the second receiving channel is a receiving channel in the first receiving channel that needs to discard data;

[0009] Part or all of the data of the second receiving channel is discarded.

[0010] In a second aspect, an embodiment of the present application provides a data processing method, including:

[0011] Receiving passive intermodulation information of a first receiving channel reported by a first node;

[0012] Determine a second receiving channel according to passive intermodulation information of the first receiving channel; wherein the second receiving channel is a receiving channel in the first receiving channel that needs to discard data;

[0013] An adjustment instruction is sent to the first node, wherein the adjustment instruction includes: information of the second receiving channel.

[0014] In a third aspect, an embodiment of the present application provides an electronic device, including:

[0015] at least one processor;

[0016] A memory, wherein at least one program is stored in the memory, and when the at least one program is executed by at least one processor, any one of the above-mentioned data processing methods is implemented.

[0017] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, any one of the above-mentioned data processing methods is implemented.

[0018] In a fifth aspect, an embodiment of the present application provides a data processing system, including:

[0019] The first node is used to:

[0020] Acquire passive intermodulation information of the first receiving channel, and report the passive intermodulation information of the first receiving channel to the second node;

[0021] An adjustment instruction obtained according to the passive intermodulation information and sent by the second node is received; wherein the adjustment instruction includes: information of the second receiving channel, where the second receiving channel is a receiving channel in the first receiving channel that needs to discard data;

[0022] discarding part or all of the data of the second receiving channel;

[0023] The second node is used to:

[0024] Receiving passive intermodulation information of a first receiving channel reported by a first node;

[0025] Determine a second receiving channel according to passive intermodulation information of the first receiving channel;

[0026] An adjustment instruction is sent to the first node.

[0027] The data processing method on the first node side provided in the embodiment of the present application obtains the passive intermodulation information of the first receiving channel and reports it to the second node, so that the second node determines the second receiving channel according to the passive intermodulation information of the first receiving channel, that is, the receiving channel in the first receiving channel that needs to discard data, and includes the information of the second receiving channel in the adjustment instruction sent to the first node, and then discards part or all of the data of the second receiving channel, thereby reducing the impact of passive intermodulation on the data of the receiving channel.

[0028] The data processing method on the second node side provided in the embodiment of the present application determines the second receiving channel, that is, the receiving channel in the first receiving channel that needs to discard data, based on the passive intermodulation information of the first receiving channel reported by the first node, and includes the information of the second receiving channel in an adjustment instruction and sends it to the first node, so that the first node discards part or all of the data of the second receiving channel, thereby reducing the impact of passive intermodulation on the data of the receiving channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A flowchart of a data processing method provided for one embodiment of the present application;

[0030] Figure 2 A flowchart of a data processing method provided for another embodiment of the present application;

[0031] Figure 3 A flowchart of a data processing method provided for another embodiment of the present application;

[0032] Figure 4 A flowchart of a data processing method provided for Example 1 of an embodiment of the present application;

[0033] Figure 5 This is a schematic diagram of discarding received data of channel 1 and channel 4 in Example 1 of an embodiment of the present application;

[0034] Figure 6 A block diagram of a data processing device provided in another embodiment of the present application;

[0035] Figure 7 A block diagram of a data processing device provided in another embodiment of the present application;

[0036] Figure 8 A block diagram of the composition of a data processing system provided for another embodiment of the present application. DETAILED DESCRIPTION

[0037] In order to enable technicians in this field to better understand the technical solution of the present application, the data processing method, device and system, electronic device, and computer-readable storage medium provided by the present application are described in detail below in conjunction with the accompanying drawings.

[0038] Example embodiments will be described more fully below with reference to the accompanying drawings, but the example embodiments may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. On the contrary, the purpose of providing these embodiments is to make this application thorough and complete and to enable those skilled in the art to fully understand the scope of this application.

[0039] In the absence of conflict, the embodiments of the present application and the features therein may be combined with each other.

[0040] As used herein, the term "and / or" includes any and all combinations of at least one of the associated listed items.

[0041] The terms used herein are only used to describe specific embodiments and are not intended to limit the present application. As used herein, the singular forms "a", "an" and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise. It will also be understood that when the terms "comprising" and / or "made of" are used in this specification, the presence of the features, wholes, steps, operations, elements and / or components is specified, but the presence or addition of at least one other feature, whole, step, operation, element, component and / or its group is not excluded.

[0042] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art. It will also be understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and this application, and will not be interpreted as having an idealized or overly formal meaning unless explicitly defined herein.

[0043] At present, the way to reduce the impact of passive intermodulation of the antenna feed system is to improve the passive intermodulation value of each component of the antenna feed system (including feeder, combiner, tower, antenna, etc.). However, the reasons for the impact of passive intermodulation are extremely complex. Even if the passive intermodulation value of each component is very good, the intermodulation value of the entire system combined together cannot guarantee to meet the design requirements. In addition, as time goes by, the antenna feed system ages, and the passive intermodulation index will further deteriorate, lower than the original design target. With the development of technology, the passive intermodulation cancellation method of base stations has gradually been applied, but the passive intermodulation cancellation method is in its infancy and is limited by many factors, and the effect is not ideal.

[0044] Figure 1 This is a flowchart of a data processing method according to an embodiment of the present application.

[0045] First, refer to Figure 1 An embodiment of the present application provides a data processing method, which can be applied to a first node (such as a base station). The method includes:

[0046] Step 100: Obtain passive intermodulation information of a first receiving channel, and report the passive intermodulation information of the first receiving channel to a second node.

[0047] It should be noted that, since the data received by the first receiving channel is only affected by the passive intermodulation of the signal sent by the transmitting channel having the same port as the first receiving channel, only the passive intermodulation information of the first receiving channel having the same port as the transmitting channel can be obtained.

[0048] For example, assuming that the first node includes two transmitting channels (i.e., transmitting channel 1 and transmitting channel 2) and four first receiving channels (i.e., first receiving channel 1, first receiving channel 2, first receiving channel 3, and first receiving channel 4), wherein transmitting channel 1 and first receiving channel 1 have the same port, and transmitting channel 2 and first receiving channel 2 have the same interface, then only the passive intermodulation information of the first receiving channel 1 and the first receiving channel 2 needs to be obtained.

[0049] In some exemplary embodiments, when it is determined that passive intermodulation interference exists in the first receiving channel according to the carrier center frequency and the carrier bandwidth of the transmitting channel, passive intermodulation information of the first receiving channel is acquired.

[0050] In some other exemplary embodiments, since the passive intermodulation value changes with time and environment, the passive intermodulation information of the first receiving channel may also be acquired periodically.

[0051] In some other exemplary embodiments, assuming that the first node is a base station, the step of acquiring the passive intermodulation information of the first receiving channel may be performed after the base station is constructed and opened.

[0052] In some other exemplary embodiments, the passive intermodulation information of the first receiving channel may also be acquired when a detection instruction sent by the second node is received. The second node may send the detection instruction when the traffic volume is small.

[0053] In some exemplary embodiments, passive intermodulation information of one or more first receiving channels may be obtained, and different first receiving channels may be obtained separately.

[0054] In some exemplary embodiments, since each first receiving channel is configured with one or more carriers, the following is divided into two cases to describe the method for acquiring the passive intermodulation information of the first receiving channel.

[0055] Case 1: The passive intermodulation information of the first receiving channel includes: passive intermodulation information corresponding to at least one carrier of the first receiving channel.

[0056] For case 1, in some exemplary embodiments, since passive intermodulation often causes a change in the noise floor value corresponding to the i-th carrier of the first receiving channel, the passive intermodulation value corresponding to the i-th carrier of the first receiving channel can be indirectly obtained by obtaining the change value of the noise floor value of the first receiving channel. That is, the passive intermodulation information corresponding to the i-th carrier of the first receiving channel is:

[0057] A first change value of the noise floor value corresponding to the i-th carrier of the first receiving channel caused by passive intermodulation when passive intermodulation cancellation is not performed;

[0058] Or, in the case of performing passive intermodulation cancellation, a second change value of the noise floor value corresponding to the i-th carrier of the first receiving channel caused by the passive intermodulation;

[0059] Or, the passive intermodulation value corresponding to the i-th carrier of the first receiving channel;

[0060] Alternatively, the passive intermodulation value corresponding to the i-th carrier of the first receiving channel and the gain corresponding to the i-th carrier of the first receiving channel brought about by performing passive intermodulation cancellation;

[0061] Here, i is an integer greater than or equal to 1.

[0062] It should be noted that performing passive intermodulation cancellation means reducing the passive intermodulation value to a certain extent, that is, being able to directly reduce the change in the noise floor value of the receiving channel caused by passive intermodulation. Passive intermodulation cancellation can be achieved by any method well known to those skilled in the art.

[0063] In the embodiment of the present application, the passive intermodulation value may also be referred to as a passive intermodulation interference value.

[0064] It should be noted that if the first node supports passive intermodulation cancellation, the passive intermodulation information corresponding to the i-th carrier of the first receiving channel is:

[0065] In the case of passive intermodulation cancellation, a second change value of the background noise value corresponding to the i-th carrier of the first receiving channel caused by passive intermodulation;

[0066] Alternatively, the passive intermodulation value corresponding to the i-th carrier of the first receiving channel and the gain corresponding to the i-th carrier of the first receiving channel brought about by performing passive intermodulation cancellation.

[0067] If the first node does not support passive intermodulation cancellation, the passive intermodulation information corresponding to the i-th carrier of the first receiving channel is:

[0068] A second change value of the noise floor value corresponding to the i-th carrier of the first receiving channel caused by passive intermodulation when passive intermodulation cancellation is not performed;

[0069] Alternatively, the passive intermodulation value corresponding to the i-th carrier of the first receiving channel.

[0070] For case 1, in some exemplary embodiments, obtaining a first change value of a noise floor value corresponding to an i-th carrier of a first receiving channel or a passive intermodulation value corresponding to an i-th carrier of a first receiving channel includes:

[0071] When the transmitting channel does not send any signal, detecting a first noise floor value corresponding to an i-th carrier of the first receiving channel;

[0072] Without performing passive intermodulation cancellation and in the case where an analog signal is sent through the sending channel according to the carrier bandwidth, the carrier center frequency and the maximum rated power of the sending channel, detecting a second noise floor value corresponding to the i-th carrier of the first receiving channel;

[0073] A first change value of the noise floor value corresponding to the i-th carrier of the first receiving channel or a passive intermodulation value corresponding to the i-th carrier of the first receiving channel is obtained by subtracting a first noise floor value corresponding to the i-th carrier of the first receiving channel from a second noise floor value corresponding to the i-th carrier of the first receiving channel.

[0074] It should be noted that the first change value of the noise floor value corresponding to the i-th carrier of the first receiving channel is equal to the passive intermodulation value corresponding to the i-th carrier of the first receiving channel.

[0075] For situation 1, in some exemplary embodiments, obtaining a second change value of the noise floor value corresponding to the i-th carrier of the first receiving channel includes:

[0076] When the transmitting channel does not send any signal, detecting a first noise floor value corresponding to an i-th carrier of the first receiving channel;

[0077] When performing passive intermodulation cancellation and sending an analog signal through the transmitting channel according to the carrier bandwidth, the carrier center frequency and the maximum rated power of the transmitting channel, detecting a third noise floor value corresponding to the i-th carrier of the first receiving channel;

[0078] A second change value of the noise floor value corresponding to the i-th carrier of the first receiving channel is obtained by subtracting the first noise floor value corresponding to the i-th carrier of the first receiving channel from the third noise floor value corresponding to the i-th carrier of the first receiving channel.

[0079] For case 1, in some exemplary embodiments, obtaining a gain corresponding to the i-th carrier of the first receiving channel caused by performing passive intermodulation cancellation includes:

[0080] When the transmitting channel does not send any signal, detecting a first noise floor value corresponding to an i-th carrier of the first receiving channel;

[0081] Without performing passive intermodulation cancellation and in the case where an analog signal is sent through the sending channel according to the carrier bandwidth, the carrier center frequency and the maximum rated power of the sending channel, detecting a second noise floor value corresponding to the i-th carrier of the first receiving channel;

[0082] When performing passive intermodulation cancellation and sending an analog signal through the transmitting channel according to the carrier bandwidth, the carrier center frequency and the maximum rated power of the transmitting channel, detecting a third noise floor value corresponding to the i-th carrier of the first receiving channel;

[0083] The gain corresponding to the i-th carrier of the first receiving channel is calculated according to a first noise floor value corresponding to the i-th carrier of the first receiving channel, a second noise floor value corresponding to the i-th carrier of the first receiving channel, and a third noise floor value corresponding to the i-th carrier of the first receiving channel.

[0084] In some exemplary embodiments, calculating a gain corresponding to an i-th carrier of the first receiving channel according to a first noise floor value corresponding to an i-th carrier of the first receiving channel, a second noise floor value corresponding to an i-th carrier of the first receiving channel, and a third noise floor value corresponding to an i-th carrier of the first receiving channel includes:

[0085] Determine the gain D corresponding to the i-th carrier of the first receiving channel as: D=(BA)-(CA);

[0086] Among them, A is the first noise floor value corresponding to the i-th carrier of the first receiving channel, B is the second noise floor value corresponding to the i-th carrier of the first receiving channel, and C is the third noise floor value corresponding to the i-th carrier of the first receiving channel.

[0087] It should be noted that sending an analog signal through a transmitting channel according to the carrier bandwidth, carrier center frequency and maximum rated power of the transmitting channel means carrying the analog signal in each carrier and sending it in the transmitting channel at the maximum rated power. Since the carrier bandwidth, carrier center frequency and maximum rated power of the transmitting channel are the carrier bandwidth, carrier center frequency and maximum rated power of the transmitting channel configured by the operator, the obtained noise floor value is the most accurate, thereby improving the accuracy of the passive intermodulation value and gain.

[0088] For case one, in some exemplary embodiments, sending an analog signal through a transmission channel according to the carrier bandwidth, carrier center frequency and maximum rated power of the transmission channel means that each carrier of the transmission channel sends an analog signal at the maximum rated power.

[0089] For case one, in some exemplary embodiments, the transmitting channel and the first receiving channel have the same port.

[0090] For the first situation, it should be noted that the passive intermodulation information corresponding to different carriers of the first receiving channel can be reported simultaneously or separately.

[0091] Case 2: The passive intermodulation information of the first receiving channel includes: the sum of the passive intermodulation information corresponding to all carriers of the first receiving channel.

[0092] For the second case, in some exemplary embodiments, the passive intermodulation information of the first receiving channel is:

[0093] The sum of first change values ​​of the noise floor values ​​corresponding to all carriers of the first receiving channel caused by passive intermodulation when no passive intermodulation cancellation is performed;

[0094] Or, in the case of passive intermodulation cancellation, the sum of second change values ​​of the background noise values ​​corresponding to all carriers of the first receiving channel caused by passive intermodulation;

[0095] Or, the sum of passive intermodulation values ​​corresponding to all carriers of the first receiving channel;

[0096] Alternatively, the sum of the passive intermodulation values ​​corresponding to all carriers of the first receiving channel and the sum of the gains corresponding to all carriers of the first receiving channel brought about by passive intermodulation cancellation.

[0097] For case 2, the first change value of the noise floor value corresponding to the i-th carrier of the first receiving channel, the second change value of the noise floor value corresponding to the i-th carrier of the first receiving channel, the passive intermodulation value corresponding to the i-th carrier of the first receiving channel, and the gain corresponding to the i-th carrier of the first receiving channel are obtained in the same way as in case 1 and are not repeated here.

[0098] Step 101: receiving an adjustment instruction sent by a second node and obtained according to passive intermodulation information; wherein the adjustment instruction includes: information of a second receiving channel, where the second receiving channel is a receiving channel in the first receiving channel that needs to discard data.

[0099] With respect to situation 1, in some exemplary embodiments, the adjustment instruction further includes: information about a carrier of the second receiving channel that needs to discard data.

[0100] Step 102: discard part or all of the data of the second receiving channel.

[0101] For situation 1, in some exemplary embodiments, discarding part or all of the data of the second receiving channel includes: discarding data corresponding to the carrier of the second receiving channel that needs to discard data.

[0102] For situation 2, in some exemplary embodiments, discarding part or all of the data of the second receiving channel includes: discarding data corresponding to all carriers of the second receiving channel.

[0103] In some exemplary embodiments, the adjustment instruction further includes: information of a third receiving channel, where the third receiving channel is a receiving channel in the first receiving channel for which data needs to be retrieved;

[0104] After receiving the adjustment instruction sent by the second node, the method further includes: retrieving part or all of the data of the third receiving channel.

[0105] For situation one, in some exemplary embodiments, the adjustment instruction also includes: information about the carrier of the third receiving channel whose data needs to be recovered; recovering part or all of the data of the third receiving channel includes: recovering data about the carrier of the third receiving channel whose data needs to be recovered.

[0106] With respect to the second situation, retrieving part or all of the data of the third receiving channel includes: retrieving data of all carriers of the third receiving channel.

[0107] The data processing method on the first node side provided in the embodiment of the present application obtains the passive intermodulation information of the first receiving channel and reports it to the second node, so that the second node determines the second receiving channel according to the passive intermodulation information of the first receiving channel, that is, the receiving channel in the first receiving channel that needs to discard data, and includes the information of the second receiving channel in the adjustment instruction sent to the first node, and then discards part or all of the data of the second receiving channel, thereby reducing the impact of passive intermodulation on the data of the receiving channel.

[0108] Figure 2 This is a flowchart of a data processing method according to another embodiment of the present application.

[0109] Second, refer to Figure 2 Another embodiment of the present application provides a data processing method, which can be applied to a second node (such as an operation maintenance center (OMC) server or a self-optimization network (SON) server), the method comprising:

[0110] Step 200: Receive passive intermodulation information of a first receiving channel reported by a first node.

[0111] It should be noted that the passive intermodulation information of the first receiving channel is the same as that in the above embodiment and will not be described in detail here.

[0112] Step 201: Determine a second receiving channel according to passive intermodulation information of a first receiving channel; wherein the second receiving channel is a receiving channel in the first receiving channel that needs to discard data.

[0113] For situation 1, in some exemplary embodiments, determining the second receiving channel according to the passive intermodulation information of the first receiving channel includes: determining a carrier of the second receiving channel that needs to discard data according to the passive intermodulation information corresponding to at least one carrier of the first receiving channel.

[0114] For situation 1, in some exemplary embodiments, when the passive intermodulation information corresponding to the i-th carrier of the first receiving channel is: a first change value of the noise floor value corresponding to the i-th carrier of the first receiving channel; or, a second change value of the noise floor value corresponding to the i-th carrier of the first receiving channel; or, when the passive intermodulation value corresponding to the i-th carrier of the first receiving channel, determining the carrier of the second receiving channel that needs to discard data according to the passive intermodulation information corresponding to at least one carrier of the first receiving channel includes:

[0115] Determining the carrier of the second receiving channel that needs to discard data includes: a carrier whose passive intermodulation information of the first receiving channel is greater than a corresponding preset threshold.

[0116] It should be noted that it is necessary to determine whether the data corresponding to the i-th carrier of the first receiving channel needs to be discarded based on the passive intermodulation information corresponding to the i-th carrier of the first receiving channel. Specifically, when the passive intermodulation information corresponding to the i-th carrier of the first receiving channel is greater than the preset threshold corresponding to the i-th carrier, it is determined that the data corresponding to the i-th carrier of the first receiving channel needs to be discarded; when the passive intermodulation information corresponding to the i-th carrier of the first receiving channel is less than or equal to the preset threshold corresponding to the i-th carrier, it is determined that the data corresponding to the i-th carrier of the first receiving channel does not need to be discarded.

[0117] For situation 1, in some exemplary embodiments, when the passive intermodulation information corresponding to the i-th carrier of the first receiving channel is: the passive intermodulation value corresponding to the i-th carrier of the first receiving channel and the gain corresponding to the i-th carrier of the first receiving channel, determining the carrier of the second receiving channel that needs to discard data according to the passive intermodulation information corresponding to at least one carrier of the first receiving channel includes:

[0118] Determining the carrier of the second receiving channel that needs to discard data includes: a carrier whose difference between the passive intermodulation value and the gain of the first receiving channel is greater than a corresponding preset threshold.

[0119] It should be noted that it is necessary to determine whether it is necessary to discard the data corresponding to the i-th carrier of the first receiving channel according to the difference between the passive intermodulation value corresponding to the i-th carrier of the first receiving channel and the gain corresponding to the i-th carrier of the first receiving channel. Specifically, when the difference between the passive intermodulation value corresponding to the i-th carrier of the first receiving channel and the gain corresponding to the i-th carrier of the first receiving channel is greater than the preset threshold corresponding to the i-th carrier, it is determined that the data corresponding to the i-th carrier of the first receiving channel needs to be discarded; when the difference between the passive intermodulation value corresponding to the i-th carrier of the first receiving channel and the gain corresponding to the i-th carrier of the first receiving channel is less than or equal to the preset threshold corresponding to the i-th carrier, it is determined that the data corresponding to the i-th carrier of the first receiving channel does not need to be discarded.

[0120] For situation 1, in some exemplary embodiments, the preset threshold is a threshold determined according to the interference threshold that the baseband demodulation can withstand. Specifically, the preset threshold corresponding to the i-th carrier is a threshold determined according to the interference threshold that the baseband demodulation corresponding to the i-th carrier can withstand.

[0121] For situation 1, in some exemplary embodiments, the preset threshold is smaller than the interference threshold that the baseband demodulation can withstand;

[0122] Alternatively, the absolute value of the difference between the preset threshold and the interference threshold that the baseband demodulation can withstand is within a preset range.

[0123] It should be noted that the interference threshold that the baseband demodulation can withstand refers to the interference threshold at which the baseband can correctly demodulate the received data.

[0124] Specifically, the preset threshold corresponding to the i-th carrier is less than the interference threshold that the baseband demodulation corresponding to the i-th carrier can withstand;

[0125] Alternatively, the absolute value of the difference between the preset threshold corresponding to the i-th carrier and the interference threshold that the baseband demodulation corresponding to the i-th carrier can withstand is within a preset range.

[0126] It should be noted that the preset thresholds corresponding to different carriers may be the same or different.

[0127] For situation 2, in some exemplary embodiments, when the passive intermodulation information of the first receiving channel is: the sum of the first change values ​​of the noise floor values ​​corresponding to all carriers of the first receiving channel; or the sum of the second change values ​​of the noise floor values ​​corresponding to all carriers of the first receiving channel; or the sum of the passive intermodulation values ​​corresponding to all carriers of the first receiving channel, determining the second receiving channel according to the passive intermodulation information of the first receiving channel includes:

[0128] Determining the second receiving channel includes: a first receiving channel whose passive intermodulation information is greater than a total preset threshold.

[0129] For situation 2, in some exemplary embodiments, when the passive intermodulation information of the first receiving channel is: the sum of the passive intermodulation values ​​corresponding to all carriers of the first receiving channel and the sum of the gains corresponding to all carriers of the first receiving channel, determining the second receiving channel according to the passive intermodulation information of the first receiving channel includes:

[0130] Determining the second receiving channel includes: a first receiving channel whose difference between the passive intermodulation value and the gain is greater than a total preset threshold.

[0131] Step 202: Send an adjustment instruction to the first node; wherein the adjustment instruction includes: information of the second receiving channel.

[0132] In some exemplary embodiments, when the demodulation configuration mode of the first node is a Maximum Ratio Combining (MRC) mode, the step of sending an adjustment instruction to the first node is continued.

[0133] In some exemplary embodiments, when the demodulation configuration mode of the first node is the Interference Rejection Combining (IRC) mode, there is no need to send an adjustment instruction to the first node, and the existing configuration remains unchanged, that is, data of any receiving channel is not discarded.

[0134] It should be noted that the MRC method is mainly aimed at rural scenarios, while the IRC method is mainly aimed at urban scenarios.

[0135] With respect to situation 1, in some exemplary embodiments, the adjustment instruction further includes: information about a carrier of the second receiving channel that needs to discard data.

[0136] In some exemplary embodiments, after receiving the passive intermodulation information of the first receiving channel reported by the first node, the method further includes: determining a third receiving channel according to the passive intermodulation information of the first receiving channel; wherein the third receiving channel is a receiving channel in the first receiving channel for which data needs to be recovered;

[0137] The adjustment instruction also includes: information of the third receiving channel.

[0138] For situation one, in some exemplary embodiments, determining the third receiving channel according to the passive intermodulation information of the first receiving channel includes: determining a carrier of the third receiving channel whose data needs to be recovered according to the passive intermodulation information corresponding to at least one carrier of the first receiving channel.

[0139] For situation 1, in some exemplary embodiments, determining the carrier of the third receiving channel that needs to recover data according to the passive intermodulation information corresponding to at least one carrier of the first receiving channel includes:

[0140] A carrier of the third receiving channel that does not need to discard data is determined according to passive intermodulation information corresponding to at least one carrier of the first receiving channel, and a carrier whose data has been discarded is selected from the carriers of the third receiving channel that does not need to discard data.

[0141] For situation 1, in some exemplary embodiments, when the passive intermodulation information corresponding to the i-th carrier of the first receiving channel is: a first change value of the noise floor value corresponding to the i-th carrier of the first receiving channel; or, a second change value of the noise floor value corresponding to the i-th carrier of the first receiving channel; or, when the passive intermodulation value corresponding to the i-th carrier of the first receiving channel, determining the carrier of the third receiving channel that does not need to discard data according to the passive intermodulation information corresponding to at least one carrier of the first receiving channel includes:

[0142] Determining the carrier of the third receiving channel that does not need to discard data includes: a carrier whose passive intermodulation information of the first receiving channel is less than or equal to a corresponding preset threshold.

[0143] It should be noted that it is necessary to determine whether the data corresponding to the i-th carrier of the first receiving channel needs to be discarded based on the passive intermodulation information corresponding to the i-th carrier of the first receiving channel. Specifically, when the passive intermodulation information corresponding to the i-th carrier of the first receiving channel is greater than the preset threshold corresponding to the i-th carrier, it is determined that the data corresponding to the i-th carrier of the first receiving channel needs to be discarded; when the passive intermodulation information corresponding to the i-th carrier of the first receiving channel is less than or equal to the preset threshold corresponding to the i-th carrier, it is determined that the data corresponding to the i-th carrier of the first receiving channel does not need to be discarded.

[0144] For situation 1, in some exemplary embodiments, when the passive intermodulation information corresponding to the i-th carrier of the first receiving channel is: the passive intermodulation value corresponding to the i-th carrier of the first receiving channel and the gain corresponding to the i-th carrier of the first receiving channel, determining the carrier of the third receiving channel that does not need to discard data according to the passive intermodulation information corresponding to at least one carrier of the first receiving channel includes:

[0145] Determining the carrier of the third receiving channel that does not need to discard data includes: a carrier whose difference between the passive intermodulation value and the gain of the first receiving channel is less than or equal to the corresponding preset threshold.

[0146] It should be noted that it is necessary to determine whether it is necessary to discard the data corresponding to the i-th carrier of the first receiving channel according to the difference between the passive intermodulation value corresponding to the i-th carrier of the first receiving channel and the gain corresponding to the i-th carrier of the first receiving channel. Specifically, when the difference between the passive intermodulation value corresponding to the i-th carrier of the first receiving channel and the gain corresponding to the i-th carrier of the first receiving channel is greater than the preset threshold corresponding to the i-th carrier, it is determined that the data corresponding to the i-th carrier of the first receiving channel needs to be discarded; when the difference between the passive intermodulation value corresponding to the i-th carrier of the first receiving channel and the gain corresponding to the i-th carrier of the first receiving channel is less than or equal to the preset threshold corresponding to the i-th carrier, it is determined that the data corresponding to the i-th carrier of the first receiving channel does not need to be discarded.

[0147] For situation 2, in some exemplary embodiments, when the passive intermodulation information of the first receiving channel is: the sum of the first change values ​​of the noise floor values ​​corresponding to all carriers of the first receiving channel; or the sum of the second change values ​​of the noise floor values ​​corresponding to all carriers of the first receiving channel; or the sum of the passive intermodulation values ​​corresponding to all carriers of the first receiving channel, determining the third receiving channel according to the passive intermodulation information of the first receiving channel includes:

[0148] Determining the third receiving channel includes: a first receiving channel whose passive intermodulation information is less than or equal to a total preset threshold.

[0149] For situation 2, in some exemplary embodiments, when the passive intermodulation information of the first receiving channel is: the sum of the passive intermodulation values ​​corresponding to all carriers of the first receiving channel and the sum of the gains corresponding to all carriers of the first receiving channel, determining the third receiving channel according to the passive intermodulation information of the first receiving channel includes:

[0150] Determining the third receiving channel includes: a first receiving channel whose difference between the passive intermodulation value and the gain is less than or equal to the total preset threshold.

[0151] In some exemplary embodiments, after determining the second receiving channel or the third receiving channel, the method further includes:

[0152] Send out an alarm signal.

[0153] In some exemplary embodiments, the alarm signal includes: a second receiving channel or a third receiving channel.

[0154] It should be noted that operators or network managers can optimize the passive intermodulation value of the antenna feed system in a timely manner based on the alarm signal, thereby improving network performance.

[0155] The data processing method on the second node side provided in the embodiment of the present application determines the second receiving channel, that is, the receiving channel in the first receiving channel that needs to discard data, based on the passive intermodulation information of the first receiving channel reported by the first node, and includes the information of the second receiving channel in an adjustment instruction and sends it to the first node, so that the first node discards the data of the second receiving channel, thereby reducing the impact of passive intermodulation on the data of the receiving channel.

[0156] Figure 3 This is a flowchart of a data processing method according to another embodiment of the present application.

[0157] Thirdly, refer to Figure 3 Another embodiment of the present application provides a data processing method, including:

[0158] Step 300: The first node obtains passive intermodulation information of a first receiving channel, and reports the passive intermodulation information of the first receiving channel to the second node.

[0159] The specific implementation process of step 300 is the same as that of step 100 in the aforementioned embodiment, and will not be repeated here.

[0160] Step 301: The second node determines a second receiving channel according to passive intermodulation information of the first receiving channel; wherein the second receiving channel is a receiving channel in the first receiving channel that needs to discard data.

[0161] The specific implementation process of step 301 is the same as that of step 201 in the aforementioned embodiment, and will not be repeated here.

[0162] Step 302: The first node receives an adjustment instruction sent by the second node and obtained according to the passive intermodulation information; wherein the adjustment instruction includes: information of the second receiving channel.

[0163] The specific implementation process of step 302 is the same as the specific implementation process of step 101 in the above embodiment, and will not be repeated here.

[0164] Step 303: The first node discards part or all of the data on the second receiving channel.

[0165] In some exemplary embodiments, the method further comprises:

[0166] The second node determines a third receiving channel according to the passive intermodulation information of the first receiving channel; wherein the third receiving channel is a receiving channel in the first receiving channel for which data needs to be recovered;

[0167] The adjustment instruction also includes: information of the third receiving channel;

[0168] After the first node receives the adjustment instruction sent by the second node, the method further includes: the first node recovering part or all of the data of the third receiving channel.

[0169] In the data processing method of the embodiment of the present application, the first node obtains the passive intermodulation information of the first receiving channel and reports it to the second node, the second node determines the second receiving channel according to the passive intermodulation information of the first receiving channel, and carries the information of the second receiving channel in the adjustment instruction to the first node, the first node discards part or all of the data of the second receiving channel, thereby reducing the impact of passive intermodulation on the data of the receiving channel.

[0170] It should be noted that, when the first node is a base station, the passive intermodulation information of the first receiving channel can be obtained through a remote radio unit (RRU, Remote Radio Unit) of the base station.

[0171] It should be noted that, when the first node is a base station, passive intermodulation cancellation may be performed by an RRU of the base station, or by other units.

[0172] Several examples are listed below to describe in detail the data processing method of the embodiments of the present application. The examples listed are only for the convenience of explanation and are not used to limit the protection scope of the embodiments of the present application.

[0173] Example 1

[0174] The RRU is a 2T4R, 2Transmitter 4 Receiver RRU, channel 1 and channel 4 are transceiver channels (i.e., the transmitting channel and the receiving channel have the same interface), channel 2 and channel 3 are only receiving channels, and the second / third / fourth / fifth generation mobile communication (GULN, Global System for Mobile Communication (GSM) / Universal Mobile Telecommunications System (UMTS, Universal Mobile Telecommunications System) / Long Term Evolution (LTE, Long Term Evolution) / New Radio (NR, New Radio)) configuration is enabled. The OMC or SON server determines that channel 1 is seriously interfered by passive intermodulation according to the passive intermodulation information of channel 1, and determines that channel 4 is seriously interfered by passive intermodulation according to the passive intermodulation information of channel 4, and notifies the RRU to discard the receiving data of channel 1 and channel 4, and the RRU becomes 2T2R.

[0175] like Figure 4 As shown, the specific implementation steps are:

[0176] Step 1: The RRU determines whether there is passive intermodulation interference in at least one receiving channel according to the configured carrier center frequency and carrier bandwidth. If there is no passive intermodulation interference in all receiving channels, the RRU implements the normal 2T4R configuration; if it is determined that there is passive intermodulation interference in receiving channel 1 and receiving channel 2, step 2 is executed;

[0177] Step 2: Determine whether the RRU has the capability to perform passive intermodulation cancellation. If yes, execute step 4; if no, execute step 3.

[0178] Step 3, the RRU sends analog signals in the transmission channel 1 and the transmission channel 4 according to the actually configured carrier center frequency, carrier bandwidth and maximum rated power, detects the passive intermodulation information X11dB of the receiving channel 1 (that is, the sum of the first change values ​​of the noise floor values ​​corresponding to all carriers of the receiving channel 1), and the passive intermodulation information X14dB of the receiving channel 4 (that is, the sum of the first change values ​​of the noise floor values ​​corresponding to all carriers of the receiving channel 4), and reports X11 and X14 to the OMC server or the SON server;

[0179] Step 4: The RRU sends analog signals in transmission channel 1 and transmission channel 4 according to the actually configured carrier center frequency, carrier bandwidth and maximum rated power, and performs passive intermodulation cancellation, detects passive intermodulation information X21dB of receiving channel 1 (i.e., the sum of the first change values ​​of the noise floor values ​​corresponding to all carriers of receiving channel 1), and passive intermodulation information X24dB of receiving channel 4 (i.e., the sum of the first change values ​​of the noise floor values ​​corresponding to all carriers of receiving channel 4), and reports X21 and X24 to the OMC server or SON server;

[0180] Step 5. The OMC server or SON server determines whether it is necessary to discard the received data of receiving channel 1 according to X11 or X21, and determines whether it is necessary to discard the received data of receiving channel 4 according to X14 or X24. If it is necessary to discard the received data of receiving channel 1 and receiving channel 4, an adjustment instruction is sent to the RRU, and the adjustment instruction includes information of receiving channel 1 and information of receiving channel 4.

[0181] Step 6: The RRU discards the received data of receiving channel 1 and receiving channel 4, and the RRU changes from the original 2T4R configuration to 2T2R.

[0182] It should be noted that the RRU discards the received data of the receiving channel 1 and / or the receiving channel 4, which means that the RRU does not send the received data of the receiving channel 1 and / or the receiving channel 4 to the baseband processing unit (BBU, Building Base band Unit), such as Figure 5 shown.

[0183] Example 2

[0184] The RRU is a 2T4R RRU, channel 1 and channel 4 are transceiver channels, channel 2 and channel 3 are only receive channels, and the 2G / 3G / 4G / 5G configuration is enabled. The OMC server or SON server determines that channel 1 is severely interfered by passive intermodulation based on the passive intermodulation information of channel 1, and notifies the RRU to discard the receive data of channel 1. The RRU becomes 2T3R.

[0185] The specific implementation process is the same as Example 1 and will not be repeated here.

[0186] Example 3

[0187] The RRU is a 2T4R RRU. Channel 1 and channel 4 are transceiver channels, channel 2 and channel 3 are only receiving channels. The 2G / 3G / 4G / 5G configuration is enabled. The OMC or SON server determines that a carrier of channel 1 is seriously interfered by intermodulation based on the passive intermodulation information corresponding to a carrier of channel 1, and notifies the RRU to discard the received data of a carrier of channel 1. The other carriers remain unchanged. The RRU discards the carrier and changes to 3R reception.

[0188] Example 4

[0189] The RRU is a 4T4R RRU. Channels 1 to 4 are all transceiver channels. The 2G / 3G / 4G / 5G configuration is enabled. The OMC server or SON server determines that channel 1 is severely interfered by passive intermodulation based on the passive intermodulation information of channel 1, and notifies the RRU to discard the received data of channel 1. The RRU becomes 4T3R.

[0190] The specific implementation process is the same as Example 1 and will not be repeated here.

[0191] Example 5

[0192] The RRU is a 4T4R RRU, and the 2G / 3G / 4G / 5G configuration is activated. The OMC server or SON server determines that a carrier of channel 1 is seriously interfered by intermodulation based on the passive intermodulation information corresponding to a carrier of channel 1, and notifies the RRU to discard the received data of a carrier of channel 1. The other carriers remain unchanged, and the RRU becomes 4T3R.

[0193] The specific implementation process is the same as Example 1 and will not be repeated here.

[0194] In a fourth aspect, an embodiment of the present application provides an electronic device, including:

[0195] at least one processor;

[0196] A memory, wherein at least one program is stored in the memory, and when the at least one program is executed by at least one processor, any one of the above-mentioned data processing methods is implemented.

[0197] Among them, the processor is a device with data processing capabilities, including but not limited to a central processing unit (CPU), etc.; the memory is a device with data storage capabilities, including but not limited to random access memory (RAM, more specifically SDRAM, DDR, etc.), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), and flash memory (FLASH).

[0198] In some embodiments, the processor and the memory are connected to each other through a bus, and further connected to other components of the computing device.

[0199] In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, any one of the above-mentioned data processing methods is implemented.

[0200] Figure 6 This is a block diagram of the composition of a data processing device according to another embodiment of the present application.

[0201] Fifth, refer to Figure 6 Another embodiment of the present application provides a data processing device (eg, a first node), including:

[0202] A passive intermodulation information acquisition module 601 is used to acquire passive intermodulation information of a first receiving channel;

[0203] A passive intermodulation information reporting module 602 reports the passive intermodulation information of the first receiving channel to the second node;

[0204] The data adjustment module 603 is used to:

[0205] An adjustment instruction obtained according to the passive intermodulation information and sent by the second node is received; wherein the adjustment instruction includes: information of the second receiving channel, where the second receiving channel is a receiving channel in the first receiving channel that needs to discard data;

[0206] Part or all of the data of the second receiving channel is discarded.

[0207] In some exemplary embodiments, the passive intermodulation information acquisition module 601 is specifically used to: when it is determined that the receiving channel has passive intermodulation interference according to the carrier center frequency and carrier bandwidth of the transmitting channel, acquire passive intermodulation information of the first receiving channel.

[0208] In some exemplary embodiments, the passive intermodulation information of the first receiving channel includes: passive intermodulation information corresponding to at least one carrier of the first receiving channel;

[0209] The adjustment instruction also includes: information about the carrier of the second receiving channel that needs to discard data;

[0210] The data adjustment module 603 is specifically configured to discard part or all of the data of the second receiving channel in the following manner: discarding the data corresponding to the carrier of the second receiving channel that needs to discard the data.

[0211] In some exemplary embodiments, the passive intermodulation information corresponding to the i-th carrier of the first receiving channel is:

[0212] A first change value of the noise floor value corresponding to the i-th carrier of the first receiving channel caused by passive intermodulation when passive intermodulation cancellation is not performed;

[0213] Or, in the case of performing passive intermodulation cancellation, a second change value of the noise floor value corresponding to the i-th carrier of the first receiving channel caused by the passive intermodulation;

[0214] Or, the passive intermodulation value corresponding to the i-th carrier of the first receiving channel;

[0215] Alternatively, the passive intermodulation value corresponding to the i-th carrier of the first receiving channel and the gain corresponding to the i-th carrier of the first receiving channel brought about by performing passive intermodulation cancellation;

[0216] Here, i is an integer greater than or equal to 1.

[0217] In some exemplary embodiments, the passive intermodulation information acquisition module 601 is specifically used to acquire a first change value of a noise floor value corresponding to an i-th carrier of a first receiving channel or a passive intermodulation value corresponding to an i-th carrier of a first receiving channel in the following manner:

[0218] When the transmitting channel does not send any signal, detecting a first noise floor value corresponding to an i-th carrier of the first receiving channel;

[0219] Without performing passive intermodulation cancellation and in the case where an analog signal is sent through the sending channel according to the carrier bandwidth, the carrier center frequency and the maximum rated power of the sending channel, detecting a second noise floor value corresponding to the i-th carrier of the first receiving channel;

[0220] A first change value of the noise floor value corresponding to the i-th carrier of the first receiving channel or a passive intermodulation value corresponding to the i-th carrier of the first receiving channel is obtained by subtracting a first noise floor value corresponding to the i-th carrier of the first receiving channel from a second noise floor value corresponding to the i-th carrier of the first receiving channel.

[0221] In some exemplary embodiments, the passive intermodulation information acquisition module 601 is specifically configured to acquire the second change value of the noise floor value corresponding to the i-th carrier of the first receiving channel in the following manner:

[0222] When the transmitting channel does not send any signal, detecting a first noise floor value corresponding to an i-th carrier of the first receiving channel;

[0223] When performing passive intermodulation cancellation and sending an analog signal through the transmitting channel according to the carrier bandwidth, the carrier center frequency and the maximum rated power of the transmitting channel, detecting a third noise floor value corresponding to the i-th carrier of the first receiving channel;

[0224] A second change value of the noise floor value corresponding to the i-th carrier of the first receiving channel is obtained by subtracting the first noise floor value corresponding to the i-th carrier of the first receiving channel from the third noise floor value corresponding to the i-th carrier of the first receiving channel.

[0225] In some exemplary embodiments, the passive intermodulation information acquisition module 601 is specifically used to implement the following method:

[0226] Obtaining the gain corresponding to the i-th carrier of the first receiving channel caused by the passive intermodulation cancellation includes:

[0227] When the transmitting channel does not send any signal, detecting a first noise floor value corresponding to an i-th carrier of the first receiving channel;

[0228] Without performing passive intermodulation cancellation and in the case where an analog signal is sent through the sending channel according to the carrier bandwidth, the carrier center frequency and the maximum rated power of the sending channel, detecting a second noise floor value corresponding to the i-th carrier of the first receiving channel;

[0229] When performing passive intermodulation cancellation and sending an analog signal through the transmitting channel according to the carrier bandwidth, the carrier center frequency and the maximum rated power of the transmitting channel, detecting a third noise floor value corresponding to the i-th carrier of the first receiving channel;

[0230] The gain corresponding to the i-th carrier of the first receiving channel is calculated according to a first noise floor value corresponding to the i-th carrier of the first receiving channel, a second noise floor value corresponding to the i-th carrier of the first receiving channel, and a third noise floor value corresponding to the i-th carrier of the first receiving channel.

[0231] In some exemplary embodiments, the transmit channel and the first receive channel have the same port.

[0232] In some exemplary embodiments, the passive intermodulation information of the first receiving channel includes: the sum of the passive intermodulation information corresponding to all carriers of the first receiving channel;

[0233] The data adjustment module 603 is specifically configured to discard part or all of the data of the second receiving channel in the following manner: discarding the data corresponding to all carriers of the second receiving channel.

[0234] In some exemplary embodiments, the adjustment instruction further includes: information of a third receiving channel, where the third receiving channel is a receiving channel in the first receiving channel for which data needs to be retrieved;

[0235] The data adjustment module 603 is further used to retrieve part or all of the data of the third receiving channel.

[0236] The specific implementation process of the data processing device in the embodiment of the present application is the same as the data processing method on the first node side in the aforementioned embodiment, which will not be repeated here.

[0237] Figure 7 This is a block diagram of the composition of a data processing device according to another embodiment of the present application.

[0238] Sixth, refer to Figure 7 Another embodiment of the present application provides a data processing device (for example, a second node), including:

[0239] A passive intermodulation information receiving module 701 is used to receive passive intermodulation information of a first receiving channel reported by a first node;

[0240] The adjustment instruction sending module 702 is used to:

[0241] Determine a second receiving channel according to passive intermodulation information of the first receiving channel; wherein the second receiving channel is a receiving channel in the first receiving channel that needs to discard data;

[0242] An adjustment instruction is sent to the first node, wherein the adjustment instruction includes: information of the second receiving channel.

[0243] In some exemplary embodiments, the passive intermodulation information of the first receiving channel includes: passive intermodulation information corresponding to at least one carrier of the first receiving channel;

[0244] The adjustment instruction sending module 702 is specifically used to determine the second receiving channel according to the passive intermodulation information of the first receiving channel in the following manner: determine the carrier of the second receiving channel that needs to discard data according to the passive intermodulation information corresponding to at least one carrier of the first receiving channel;

[0245] The adjustment instruction also includes: information about the carrier of the second receiving channel that needs to discard data.

[0246] In some exemplary embodiments, the passive intermodulation information corresponding to the i-th carrier of the first receiving channel is:

[0247] A first change value of the noise floor value corresponding to the i-th carrier of the first receiving channel caused by passive intermodulation when passive intermodulation cancellation is not performed;

[0248] Or, in the case of performing passive intermodulation cancellation, a second change value of the noise floor value corresponding to the i-th carrier of the first receiving channel caused by the passive intermodulation;

[0249] Or, the passive intermodulation value corresponding to the i-th carrier of the first receiving channel;

[0250] Alternatively, the passive intermodulation value corresponding to the i-th carrier of the first receiving channel and the gain corresponding to the i-th carrier of the receiving channel brought about by performing passive intermodulation cancellation;

[0251] Here, i is an integer greater than or equal to 1.

[0252] In some exemplary embodiments, when the passive intermodulation information corresponding to the i-th carrier of the first receiving channel is: a first change value of the noise floor value corresponding to the i-th carrier of the first receiving channel; or, a second change value of the noise floor value corresponding to the i-th carrier of the first receiving channel; or, when the passive intermodulation value corresponding to the i-th carrier of the first receiving channel is, the adjustment instruction sending module 702 is specifically used to determine the carrier of the second receiving channel that needs to discard data according to the passive intermodulation information corresponding to at least one carrier of the first receiving channel in the following manner:

[0253] Determining the carrier of the second receiving channel that needs to discard data includes: a carrier whose passive intermodulation information of the first receiving channel is greater than a corresponding preset threshold.

[0254] In some exemplary embodiments, when the passive intermodulation information corresponding to the i-th carrier of the first receiving channel is: the passive intermodulation value corresponding to the i-th carrier of the first receiving channel and the gain corresponding to the i-th carrier of the first receiving channel, the adjustment instruction sending module 702 is specifically used to determine the carrier of the second receiving channel that needs to discard data according to the passive intermodulation information corresponding to at least one carrier of the first receiving channel in the following manner:

[0255] Determining the carrier of the second receiving channel that needs to discard data includes: a carrier whose difference between the passive intermodulation value and the gain of the first receiving channel is greater than a corresponding preset threshold.

[0256] In some exemplary embodiments, the preset threshold is a threshold determined according to an interference threshold that the baseband demodulation can withstand.

[0257] In some exemplary embodiments, the preset threshold is less than an interference threshold that the baseband demodulation can withstand;

[0258] Alternatively, the absolute value of the difference between the preset threshold and the interference threshold that the baseband demodulation can withstand is within a preset range.

[0259] In some exemplary embodiments, the passive intermodulation information of the first receiving channel includes: the sum of the passive intermodulation information corresponding to all carriers of the first receiving channel;

[0260] The second receiving channel is a receiving channel in the first receiving channel that needs to discard data corresponding to all carriers.

[0261] In some exemplary embodiments, the adjustment instruction sending module 702 is further used to: determine a third receiving channel according to the passive intermodulation information of the first receiving channel; wherein the third receiving channel is a receiving channel in the first receiving channel for which data needs to be recovered;

[0262] The adjustment instruction also includes: information of the third receiving channel.

[0263] The specific implementation process of the data processing device in the embodiment of the present application is the same as the data processing method on the second node side in the aforementioned embodiment, which will not be repeated here.

[0264] Figure 8 This is a block diagram of the composition of a data processing system according to another embodiment of the present application.

[0265] Seventh, refer to Figure 8 Another embodiment of the present application provides a data processing system, including:

[0266] The first node 801 is configured to:

[0267] Acquire passive intermodulation information of the first receiving channel, and report the passive intermodulation information of the first receiving channel to the second node;

[0268] An adjustment instruction obtained according to the passive intermodulation information and sent by the second node is received; wherein the adjustment instruction includes: information of the second receiving channel, where the second receiving channel is a receiving channel in the first receiving channel that needs to discard data;

[0269] discarding part or all of the data of the second receiving channel;

[0270] The second node 802 is configured to:

[0271] Receiving passive intermodulation information of a first receiving channel reported by a first node;

[0272] Determine a second receiving channel according to passive intermodulation information of the first receiving channel;

[0273] An adjustment instruction is sent to the first node.

[0274] In some exemplary embodiments, the first node 801 is further configured to: when it is determined that passive intermodulation interference exists in the first receiving channel according to the carrier center frequency and carrier bandwidth of the transmitting channel, continue to execute the step of acquiring passive intermodulation information of the first receiving channel.

[0275] In some exemplary embodiments, the passive intermodulation information of the first receiving channel includes: passive intermodulation information corresponding to at least one carrier of the first receiving channel;

[0276] The adjustment instruction also includes: information about the carrier of the second receiving channel that needs to discard data;

[0277] The first node 801 is specifically configured to discard part or all of the data on the second receiving channel in the following manner: discarding the data corresponding to the carrier of the second receiving channel that needs to discard the data.

[0278] In some exemplary embodiments, the passive intermodulation information corresponding to the i-th carrier of the first receiving channel is:

[0279] A first change value of the noise floor value corresponding to the i-th carrier of the first receiving channel caused by passive intermodulation when passive intermodulation cancellation is not performed;

[0280] Or, in the case of performing passive intermodulation cancellation, a second change value of the noise floor value corresponding to the i-th carrier of the first receiving channel caused by the passive intermodulation;

[0281] Or, the passive intermodulation value corresponding to the i-th carrier of the first receiving channel;

[0282] Alternatively, the passive intermodulation value corresponding to the i-th carrier of the first receiving channel and the gain corresponding to the i-th carrier of the first receiving channel brought about by performing passive intermodulation cancellation;

[0283] Here, i is an integer greater than or equal to 1.

[0284] In some exemplary embodiments, the first node 801 is specifically configured to obtain a first change value of a noise floor value corresponding to an i-th carrier of a first receiving channel or a passive intermodulation value corresponding to an i-th carrier of the first receiving channel in the following manner:

[0285] When the transmitting channel does not send any signal, detecting a first noise floor value corresponding to an i-th carrier of the first receiving channel;

[0286] Without performing passive intermodulation cancellation and in the case where an analog signal is sent through the sending channel according to the carrier bandwidth, the carrier center frequency and the maximum rated power of the sending channel, detecting a second noise floor value corresponding to the i-th carrier of the first receiving channel;

[0287] A first change value of the noise floor value corresponding to the i-th carrier of the first receiving channel or a passive intermodulation value corresponding to the i-th carrier of the first receiving channel is obtained by subtracting a first noise floor value corresponding to the i-th carrier of the first receiving channel from a second noise floor value corresponding to the i-th carrier of the first receiving channel.

[0288] In some exemplary embodiments, the first node 801 is specifically configured to obtain a second change value of the noise floor value corresponding to the i-th carrier of the first receiving channel in the following manner:

[0289] When the transmitting channel does not send any signal, detecting a first noise floor value corresponding to an i-th carrier of the first receiving channel;

[0290] When performing passive intermodulation cancellation and sending an analog signal through the transmitting channel according to the carrier bandwidth, the carrier center frequency and the maximum rated power of the transmitting channel, detecting a third noise floor value corresponding to the i-th carrier of the first receiving channel;

[0291] A second change value of the noise floor value corresponding to the i-th carrier of the first receiving channel is obtained by subtracting the first noise floor value corresponding to the i-th carrier of the first receiving channel from the third noise floor value corresponding to the i-th carrier of the first receiving channel.

[0292] In some exemplary embodiments, the first node 801 is specifically configured to obtain a gain corresponding to an i-th carrier of a first receiving channel caused by passive intermodulation cancellation in the following manner:

[0293] When the transmitting channel does not send any signal, detecting a first noise floor value corresponding to an i-th carrier of the first receiving channel;

[0294] Without performing passive intermodulation cancellation, and in a case where an analog signal is sent through the sending channel according to the carrier bandwidth, the carrier center frequency and the maximum rated power of the sending channel, detecting a second noise floor value corresponding to the i-th carrier of the first receiving channel;

[0295] When performing passive intermodulation cancellation and sending an analog signal through the transmitting channel according to the carrier bandwidth, the carrier center frequency and the maximum rated power of the transmitting channel, detecting a third noise floor value corresponding to the i-th carrier of the first receiving channel;

[0296] The gain corresponding to the i-th carrier of the first receiving channel is calculated according to a first noise floor value corresponding to the i-th carrier of the first receiving channel, a second noise floor value corresponding to the i-th carrier of the first receiving channel, and a third noise floor value corresponding to the i-th carrier of the first receiving channel.

[0297] In some exemplary embodiments, the transmit channel and the first receive channel have the same port.

[0298] In some exemplary embodiments, the passive intermodulation information of the first receiving channel includes: the sum of the passive intermodulation information corresponding to all carriers of the first receiving channel;

[0299] The first node 801 is specifically configured to discard part or all of the data on the second receiving channel in the following manner: discarding data corresponding to all carriers of the second receiving channel.

[0300] In some exemplary embodiments, the passive intermodulation information of the first receiving channel includes: passive intermodulation information corresponding to at least one carrier of the first receiving channel;

[0301] The second node 802 is specifically configured to determine the second receiving channel according to the passive intermodulation information of the first receiving channel in the following manner: determining a carrier of the second receiving channel that needs to discard data according to the passive intermodulation information corresponding to at least one carrier of the first receiving channel;

[0302] The adjustment instruction also includes: information about the carrier of the second receiving channel that needs to discard data.

[0303] In some exemplary embodiments, when the passive intermodulation information corresponding to the i-th carrier of the first receiving channel is: a first change value of the noise floor value corresponding to the i-th carrier of the first receiving channel; or, a second change value of the noise floor value corresponding to the i-th carrier of the first receiving channel; or, when the passive intermodulation value corresponding to the i-th carrier of the first receiving channel, the second node 802 is specifically used to determine the carrier of the second receiving channel that needs to discard data according to the passive intermodulation information corresponding to at least one carrier of the first receiving channel in the following manner:

[0304] Determining the carrier of the second receiving channel that needs to discard data includes: a carrier whose passive intermodulation information of the first receiving channel is greater than a corresponding preset threshold.

[0305] In some exemplary embodiments, when the passive intermodulation information corresponding to the i-th carrier of the first receiving channel is: the passive intermodulation value corresponding to the i-th carrier of the first receiving channel and the gain corresponding to the i-th carrier of the first receiving channel, the second node 802 is specifically configured to determine the carrier of the second receiving channel that needs to discard data according to the passive intermodulation information corresponding to at least one carrier of the first receiving channel in the following manner:

[0306] Determining the carrier of the second receiving channel that needs to discard data includes: a carrier whose difference between the passive intermodulation value and the gain of the first receiving channel is greater than a corresponding preset threshold.

[0307] In some exemplary embodiments, the preset threshold is a threshold determined according to an interference threshold that the baseband demodulation can withstand.

[0308] In some exemplary embodiments, the preset threshold is less than an interference threshold that the baseband demodulation can withstand;

[0309] Alternatively, the absolute value of the difference between the preset threshold and the interference threshold that the baseband demodulation can withstand is within a preset range.

[0310] In some exemplary embodiments, the passive intermodulation information of the first receiving channel includes: the sum of the passive intermodulation information corresponding to all carriers of the first receiving channel;

[0311] The second receiving channel is a receiving channel in the first receiving channel that needs to discard data corresponding to all carriers.

[0312] In some exemplary embodiments, the second node 802 is further configured to: determine a third receiving channel according to the passive intermodulation information of the first receiving channel; wherein the third receiving channel is a receiving channel in the first receiving channel for which data needs to be recovered;

[0313] The adjustment instruction also includes: information of the third receiving channel;

[0314] The first node 801 is further used to retrieve part or all of the data of the third receiving channel.

[0315] The specific implementation process of the data processing system in the embodiment of the present application is the same as that of the data processing method in the aforementioned embodiment, which will not be repeated here.

[0316] It will be appreciated by those skilled in the art that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In hardware implementations, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those skilled in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0317] Example embodiments have been disclosed herein, and although specific terms are employed, they are used and should be interpreted only in a general illustrative sense and not for limiting purposes. In some instances, it will be apparent to those skilled in the art that, unless otherwise expressly noted, features, characteristics, and / or elements described in conjunction with a particular embodiment may be used alone or in combination with features, characteristics, and / or elements described in conjunction with other embodiments. Therefore, those skilled in the art will appreciate that various changes in form and detail may be made without departing from the scope of the present application as set forth in the appended claims.

Claims

1. A data processing method, the data processing method comprising: Acquire passive intermodulation information of a first receiving channel, and report the passive intermodulation information of the first receiving channel to a second node; The passive intermodulation information includes: a change value of a noise floor value, a passive intermodulation value or a gain corresponding to a carrier of the first receiving channel; receiving an adjustment instruction sent by the second node and obtained according to the passive intermodulation information; wherein the adjustment instruction includes: information of a second receiving channel, where the second receiving channel is a receiving channel in the first receiving channel that needs to discard data; discarding part or all of the data of the second receiving channel; The obtaining of passive intermodulation information of the first receiving channel includes: When the sending channel does not send any signal, detecting a noise floor value corresponding to the carrier of the first receiving channel; Without performing passive intermodulation cancellation, and in a case where an analog signal is sent through the sending channel according to the carrier bandwidth, the carrier center frequency and the maximum rated power of the sending channel, detecting a noise floor value corresponding to the carrier of the first receiving channel; When performing passive intermodulation cancellation and sending an analog signal through the sending channel according to the carrier bandwidth, carrier center frequency and maximum rated power of the sending channel, detecting a noise floor value corresponding to the carrier of the first receiving channel; According to the noise floor values ​​corresponding to the carrier of the first receiving channel detected in different situations, a change value, a passive intermodulation value or a gain of the noise floor value corresponding to the carrier of the first receiving channel is determined.

2. The data processing method according to claim 1, wherein when it is determined that passive intermodulation interference exists in the first receiving channel according to the carrier center frequency and carrier bandwidth of the transmitting channel, passive intermodulation information of the first receiving channel is obtained.

3. The data processing method according to claim 1, wherein: The passive intermodulation information of the first receiving channel includes: passive intermodulation information corresponding to at least one carrier of the first receiving channel; The adjustment instruction also includes: information about the carrier of the second receiving channel that needs to discard data; The discarding of part or all of the data of the second receiving channel includes: discarding the data corresponding to the carrier of the second receiving channel that needs to discard the data.

4. The data processing method according to claim 3, wherein: The passive intermodulation information corresponding to the i-th carrier of the first receiving channel is: a first change value of a noise floor value corresponding to an i-th carrier of the first receiving channel caused by passive intermodulation when passive intermodulation cancellation is not performed; Alternatively, in the case of performing the passive intermodulation cancellation, a second change value of the noise floor value corresponding to the i-th carrier of the first receiving channel caused by the passive intermodulation; Or, the passive intermodulation value corresponding to the i-th carrier of the first receiving channel; Alternatively, the passive intermodulation value corresponding to the i-th carrier of the first receiving channel and the gain corresponding to the i-th carrier of the first receiving channel brought about by performing the passive intermodulation cancellation; Here, i is an integer greater than or equal to 1.

5. The data processing method according to claim 4, wherein: Obtaining a first change value of a noise floor value corresponding to an i-th carrier of the first receiving channel or a passive intermodulation value corresponding to an i-th carrier of the first receiving channel includes: When the sending channel does not send any signal, detecting a first noise floor value corresponding to an i-th carrier of the first receiving channel; Without performing the passive intermodulation cancellation, and in a case where an analog signal is sent through the sending channel according to the carrier bandwidth, the carrier center frequency and the maximum rated power of the sending channel, detecting a second noise floor value corresponding to the i-th carrier of the first receiving channel; A first change value of the noise floor value corresponding to the i-th carrier of the first receiving channel or a passive intermodulation value corresponding to the i-th carrier of the first receiving channel is obtained by subtracting a first noise floor value corresponding to the i-th carrier of the first receiving channel from a second noise floor value corresponding to the i-th carrier of the first receiving channel.

6. The data processing method according to claim 4, wherein: Obtaining a second change value of the noise floor value corresponding to the i-th carrier of the first receiving channel includes: When the sending channel does not send any signal, detecting a first noise floor value corresponding to an i-th carrier of the first receiving channel; While performing the passive intermodulation cancellation and sending an analog signal through the sending channel according to the carrier bandwidth, the carrier center frequency and the maximum rated power of the sending channel, detecting a third noise floor value corresponding to the i-th carrier of the first receiving channel; A second change value of the noise floor value corresponding to the i-th carrier of the first receiving channel is obtained by subtracting the first noise floor value corresponding to the i-th carrier of the first receiving channel from the third noise floor value corresponding to the i-th carrier of the first receiving channel.

7. The data processing method according to claim 4, wherein: Obtaining a gain corresponding to the i-th carrier of the first receiving channel caused by performing the passive intermodulation cancellation includes: When the sending channel does not send any signal, detecting a first noise floor value corresponding to an i-th carrier of the first receiving channel; Without performing the passive intermodulation cancellation, and in a case where an analog signal is sent through the sending channel according to the carrier bandwidth, the carrier center frequency and the maximum rated power of the sending channel, detecting a second noise floor value corresponding to the i-th carrier of the first receiving channel; While performing the passive intermodulation cancellation and sending an analog signal through the sending channel according to the carrier bandwidth, the carrier center frequency and the maximum rated power of the sending channel, detecting a third noise floor value corresponding to the i-th carrier of the first receiving channel; A gain corresponding to the i-th carrier of the first receiving channel is calculated according to a first noise floor value corresponding to the i-th carrier of the first receiving channel, a second noise floor value corresponding to the i-th carrier of the first receiving channel, and a third noise floor value corresponding to the i-th carrier of the first receiving channel.

8. The data processing method according to any one of claims 5 to 7, wherein: The transmitting channel and the first receiving channel have the same port.

9. The data processing method according to claim 1, wherein: The passive intermodulation information of the first receiving channel includes: the sum of the passive intermodulation information corresponding to all carriers of the first receiving channel; The discarding of part or all of the data of the second receiving channel includes: discarding data corresponding to all carriers of the second receiving channel.

10. The data processing method according to claim 1, wherein the adjustment instruction further comprises: Information of a third receiving channel, where the third receiving channel is the receiving channel in the first receiving channel for which data needs to be retrieved; After receiving the adjustment instruction sent by the second node and obtained according to the passive intermodulation information, the method further includes: retrieving part or all of the data of the third receiving channel.

11. A data processing method, comprising: Receiving passive intermodulation information of a first receiving channel reported by a first node; The passive intermodulation information includes: a change value of a noise floor value corresponding to the carrier of the first receiving channel, a passive intermodulation value or a gain, and the first node obtains the passive intermodulation information in the following manner: when the sending channel of the first node does not send any signal, detecting the noise floor value corresponding to the carrier of the first receiving channel of the first node; when no passive intermodulation cancellation is performed and an analog signal is sent through the sending channel according to the carrier bandwidth, the carrier center frequency and the maximum rated power of the sending channel, detecting the noise floor value corresponding to the carrier of the first receiving channel; when passive intermodulation cancellation is performed and an analog signal is sent through the sending channel according to the carrier bandwidth, the carrier center frequency and the maximum rated power of the sending channel, detecting the noise floor value corresponding to the carrier of the first receiving channel; according to the noise floor values ​​corresponding to the carrier of the first receiving channel detected in different situations, determining the change value of the noise floor value corresponding to the carrier of the first receiving channel, the passive intermodulation value or the gain; Determine a second receiving channel according to the passive intermodulation information of the first receiving channel; wherein the second receiving channel is a receiving channel in the first receiving channel that needs to discard data; An adjustment instruction is sent to the first node; wherein the adjustment instruction includes: information of the second receiving channel, and the first node is used to discard part or all of the data of the second receiving channel according to the adjustment instruction.

12. The data processing method according to claim 11, wherein: The passive intermodulation information of the first receiving channel includes: passive intermodulation information corresponding to at least one carrier of the first receiving channel; Determining the second receiving channel according to the passive intermodulation information of the first receiving channel includes: determining a carrier of the second receiving channel that needs to discard data according to the passive intermodulation information corresponding to at least one carrier of the first receiving channel; The adjustment instruction also includes: information about the carrier of the second receiving channel that needs to discard data.

13. The data processing method according to claim 12, wherein: The passive intermodulation information corresponding to the i-th carrier of the first receiving channel is: a first change value of a noise floor value corresponding to an i-th carrier of the first receiving channel caused by passive intermodulation when passive intermodulation cancellation is not performed; Alternatively, in the case of performing the passive intermodulation cancellation, a second change value of the noise floor value corresponding to the i-th carrier of the first receiving channel caused by the passive intermodulation; Or, the passive intermodulation value corresponding to the i-th carrier of the first receiving channel; Alternatively, the passive intermodulation value corresponding to the i-th carrier of the first receiving channel and the gain corresponding to the i-th carrier of the receiving channel brought about by performing the passive intermodulation cancellation; Here, i is an integer greater than or equal to 1.

14. The data processing method according to claim 13, wherein: The passive intermodulation information corresponding to the i-th carrier of the first receiving channel is: a first change value of the noise floor value corresponding to the i-th carrier of the first receiving channel; Or, a second change value of the noise floor value corresponding to the i-th carrier of the first receiving channel; Alternatively, in the case of the passive intermodulation value corresponding to the i-th carrier of the first receiving channel, determining the carrier of the second receiving channel that needs to discard data according to the passive intermodulation information corresponding to at least one carrier of the first receiving channel includes: The carrier whose passive intermodulation information of the first receiving channel is greater than the corresponding preset threshold is determined as the carrier of the second receiving channel that needs to discard data.

15. The data processing method according to claim 13, wherein: In a case where the passive intermodulation information corresponding to the i-th carrier of the first receiving channel is: the passive intermodulation value corresponding to the i-th carrier of the first receiving channel and the gain corresponding to the i-th carrier of the first receiving channel, determining the carrier of the second receiving channel that needs to discard data according to the passive intermodulation information corresponding to at least one carrier of the first receiving channel includes: A carrier whose difference between the passive intermodulation value and the gain of the first receiving channel is greater than a corresponding preset threshold is determined as a carrier of the second receiving channel that needs to discard data.

16. The data processing method according to claim 14 or 15, wherein: The preset threshold is a threshold determined according to the interference threshold that the baseband demodulation can withstand.

17. The data processing method according to claim 14 or 15, wherein: The preset threshold is smaller than the interference threshold that the baseband demodulation can bear; Alternatively, the absolute value of the difference between the preset threshold and the interference threshold that the baseband demodulation can withstand is within a preset range.

18. The data processing method according to claim 11, wherein: The passive intermodulation information of the first receiving channel includes: the sum of the passive intermodulation information corresponding to all carriers of the first receiving channel; The second receiving channel is a receiving channel in the first receiving channel that needs to discard data corresponding to all carriers.

19. The data processing method according to claim 11, after receiving the passive intermodulation information of the first receiving channel reported by the first node, the method further comprises: Determine a third receiving channel according to the passive intermodulation information of the first receiving channel; wherein the third receiving channel is a receiving channel in the first receiving channel for which data needs to be recovered; The adjustment instruction also includes: information of the third receiving channel.

20. An electronic device, comprising: at least one processor; A memory having at least one program stored thereon, wherein when the at least one program is executed by the at least one processor, the data processing method according to any one of claims 1 to 10 or the data processing method according to any one of claims 11 to 19 is implemented.

21. A computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the data processing method according to any one of claims 1 to 10, or the data processing method according to any one of claims 11 to 19.

22. A data processing system comprising: The first node is used to: Acquire passive intermodulation information of a first receiving channel, and report the passive intermodulation information of the first receiving channel to a second node; The passive intermodulation information includes: a change value of a noise floor value corresponding to the carrier of the first receiving channel, a passive intermodulation value or a gain; the obtaining of the passive intermodulation information of the first receiving channel includes: detecting a noise floor value corresponding to the carrier of the first receiving channel when no signal is sent through the sending channel; detecting a noise floor value corresponding to the carrier of the first receiving channel when no passive intermodulation cancellation is performed and an analog signal is sent through the sending channel according to the carrier bandwidth, the carrier center frequency and the maximum rated power of the sending channel; detecting a noise floor value corresponding to the carrier of the first receiving channel when passive intermodulation cancellation is performed and an analog signal is sent through the sending channel according to the carrier bandwidth, the carrier center frequency and the maximum rated power of the sending channel; determining a change value of a noise floor value, a passive intermodulation value or a gain corresponding to the carrier of the first receiving channel according to the noise floor values ​​corresponding to the carrier of the first receiving channel detected under different circumstances; receiving an adjustment instruction sent by the second node and obtained according to the passive intermodulation information; wherein the adjustment instruction includes: information of a second receiving channel, where the second receiving channel is a receiving channel in the first receiving channel that needs to discard data; discarding part or all of the data of the second receiving channel; The second node is used to: Receiving passive intermodulation information of a first receiving channel reported by a first node; Determining a second receiving channel according to passive intermodulation information of the first receiving channel; Send an adjustment instruction to the first node.

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