Anti-interference method, device, electronic device and storage medium for DSS

Abstract

The present application discloses an anti-interference method, device, electronic device and storage medium for DSS. The anti-interference method for DSS includes: obtaining real-time radio frequency performance parameters and communication performance parameters; judging whether there is interference of dynamic spectrum sharing DSS according to the radio frequency performance parameters and communication performance parameters; if there is interference, classifying the interference according to the radio frequency performance parameters and communication performance parameters; and performing corresponding anti-interference processing on different types of interference according to the classification results. In the implementation mode of the present application, the interference generated by the dynamic spectrum sharing process is classified, and corresponding processing is performed according to the classification results, so that the anti-interference processing is more targeted and the efficiency of the anti-interference processing is improved without reducing the spectrum utilization rate; at the same time, since the radio frequency performance parameters and communication performance parameters are real-time acquired values, it is possible to verify whether there is still interference after the anti-interference processing, thereby ensuring the completeness of the anti-interference processing.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communications, and in particular to an anti-interference method for DSS. Background Art

[0002] With the increasing demand for mobile broadband network service traffic, the spectrum is dense, and the current low-frequency spectrum resources are almost all occupied by 2 / 3 / 4G. Since 2 / 3 / 4G, especially 4G, will coexist with 5G for a long time, it is impossible to recultivate all of these high-quality low-frequency resources. It is an inevitable trend for operators to recultivate 2G / 3G networks to 4G, and from 4G to 5G. How to tap more potential from operators' existing spectrum resources has become a topic of general concern in the industry. Spectrum sharing technology can realize on-demand and dynamic allocation of spectrum resources in the same frequency band, and has become an inevitable choice for operators. Dynamic Spectrum Sharing (DSS) allows 4G Long Term Evolution (LTE) and 5G New Radio (NR) to share the same spectrum, and dynamically allocates time and frequency resources to 4G and 5G users, such as Figure 1 After adopting DSS technology, spectrum efficiency can be improved and smooth evolution between 4G and 5G can be facilitated; it can not only utilize the low-frequency band resources and base stations of the old 4G, but also realize smooth evolution from 4G to 5G, greatly reducing the investment cost of 5G.

[0003] Although DSS is very attractive to operators, it still faces many technical challenges, mainly the problem of inter-channel interference. Taking 4G / 5G DSS as an example, 4G is a broadband system with relatively extensive channel configuration. Control channels, pilots, etc. are all mapped to the full frequency band. 5G is also a broadband system with various physical channels. In related technologies, buffer bands are reserved to solve the interference of various physical channels between the two systems. However, the reserved buffer band method will reduce the overall spectrum utilization of the service channel during the DSS process. Summary of the invention

[0004] The main purpose of the embodiments of the present application is to provide an anti-interference method, device, electronic device and storage medium for DSS, which can perform anti-interference processing on the interference generated in the DSS process without reducing the overall spectrum utilization rate in the DSS process.

[0005] To solve the above technical problems, the embodiments of the present application provide an anti-interference method for DSS, comprising:

[0006] Obtain real-time RF performance parameters and communication performance parameters;

[0007] Determine whether there is interference from dynamic spectrum sharing (DSS) according to the radio frequency performance parameters and the communication performance parameters;

[0008] If interference exists, classifying the interference according to the radio frequency performance parameters and the communication performance parameters;

[0009] According to the classification result, corresponding anti-interference processing is performed on different types of interference.

[0010] In order to solve the above technical problems, the embodiments of the present application further provide an anti-interference device for DSS, comprising:

[0011] An acquisition module is used to obtain real-time radio frequency performance parameters and communication performance parameters;

[0012] A determination module, used to determine whether there is interference from dynamic spectrum sharing DSS according to the radio frequency performance parameters and the communication performance parameters;

[0013] A classification module, for classifying the interference according to the radio frequency performance parameters and the communication performance parameters if interference exists;

[0014] The processing module is used to perform corresponding anti-interference processing on different types of interference according to the classification result.

[0015] To solve the above technical problems, an embodiment of the present application also provides an electronic device, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the above anti-interference method for DSS.

[0016] In order to solve the above technical problems, the embodiments of the present application further provide a computer-readable storage medium storing a computer program, which implements the above anti-interference method for DSS when executed by a processor.

[0017] Compared with the related art, the implementation method of the present application classifies the interference generated by the dynamic spectrum sharing process according to the radio frequency indicators, and performs corresponding processing according to the classification results, so that the anti-interference processing is more targeted and the efficiency of the anti-interference processing is improved without reducing the spectrum utilization rate; at the same time, because the radio frequency performance parameters and communication performance parameters are real-time acquired values, real-time feedback can be obtained after the anti-interference processing is performed to check whether there is still interference, thereby ensuring the completion of the anti-interference processing. In other words, the implementation method of the present application can solve the current 5G terminal self-interference problem in the DSS process, improve the spectrum anti-interference performance of 2 / 3 / 4G and 5G NR, prevent the deterioration of the transmission indicators caused by conflicts or interference in the dynamic process, and receive large bit errors, thereby improving the performance effect of the terminal 5G peak upload and download throughput. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0019] Figure 1 It is a schematic diagram of dynamic spectrum sharing in the background technology of this application;

[0020] Figure 2 is a flow chart of an anti-interference method for DSS provided in the first embodiment of the present application;

[0021] Figure 3 is a schematic diagram of the cause of interference provided by the first embodiment of the present application;

[0022] Figure 4 is a schematic diagram of interference self-test provided in the first embodiment of the present application;

[0023] Figure 5 This is a schematic diagram of anti-interference processing for adjusting dynamic power provided by the first embodiment of the present application;

[0024] Figure 6 is a flow chart of an anti-interference method for DSS provided in the second embodiment of the present application;

[0025] Figure 7 is a module schematic diagram of an anti-interference method for DSS provided in the second embodiment of the present application;

[0026] Figure 8 is a schematic diagram of a device for an anti-interference method for DSS provided in a third embodiment of the present application;

[0027] Fig. 9 It is a schematic diagram of an electronic device provided in the fourth embodiment of the present application. DETAILED DESCRIPTION

[0028] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings. However, it will be appreciated by those skilled in the art that in the present application, many technical details are proposed in order to enable the reader to better understand the present application. However, even without these technical details and various changes and modifications for the following embodiments, the technical scheme claimed in the present application can also be implemented. The division of the following embodiments is for the convenience of description, and the specific implementation of the present application should not be construed as any limitation, and the various embodiments can be combined and referenced with each other without contradiction.

[0029] The terms "first" and "second" in the embodiments of the present application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a system, product or device comprising a series of parts or units is not limited to the listed parts or units, but optionally also includes parts or units that are not listed, or optionally also includes other parts or units inherent to these products or devices. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] The first embodiment of the present application relates to an anti-interference method for DSS, which is applied to electronic devices including various 5G terminals, customer premise equipment (CPE), base stations and other products using 5G technology. The specific process is as follows: Figure 2 shown.

[0031] Step 101, obtaining real-time radio frequency performance parameters and communication performance parameters;

[0032] Step 102, judging whether there is interference from dynamic spectrum sharing DSS according to the radio frequency performance parameters and the communication performance parameters, if yes, proceeding to step 103; if no, returning to step 101;

[0033] Step 103, classifying interference according to radio frequency performance parameters and communication performance parameters;

[0034] Step 104, according to the classification result, perform corresponding anti-interference processing on different types of interference, and after processing, return to step 101 for judgment and detection.

[0035] The implementation details of the anti-interference method for DSS of this embodiment are specifically described below. The following content is only the implementation details provided for the convenience of understanding and is not necessary for implementing this solution.

[0036] In step 101, the electronic device supporting the DSS function obtains the real-time RF performance parameters and communication performance parameters of the electronic device through the test algorithm built into the electronic device. That is, when obtaining the real-time RF performance parameters and communication performance parameters, it does not rely on external test instruments, additional RF modules and devices, such as power dividers, combiners, couplers, coupling boxes, etc., nor does it rely on RF test cables. It is only implemented through self-test algorithms and instructions, and the self-test algorithm is located in the electronic device program. For example: the terminal collects three transmission indicators of real-time power, vector amplitude error (Error Vector Magnitude, EVM), and adjacent channel suppression ratio (Adjacent Channel Leakage Ratio, ACLR) through the built-in test algorithm, and also collects two receiving indicators of reference signal receiving power (Reference Signal Receiving Power, RSRP) and estimated sensitivity (Sensitivity, SEN). Among them, RF performance parameters include: EVM, ACLR, RSRP and block error rate (BLER); communication performance parameters include: uplink and downlink throughput, bit error rate, modulation and coding scheme (MCS) and multiple-in multiple-out (MIMO) data stream number.

[0037] In step 102, the real-time RF performance parameters and communication performance parameters acquired above are compared with the preset RF performance indicators and communication performance indicator thresholds under DSS without interference to determine whether there is DSS interference. For example, by comparing the collected uplink and downlink throughput, MCS and bit error rate indicators with the preset indicator thresholds under DSS without interference, if they exceed the preset range, it indicates that there is interference in the current electronic device working mode. Interference will occur due to the overlap of different communication channels or the adjacent state, for example Figure 3 As shown; in the 01 state, 100% overlapping interference will be generated, in the 02 state, 20% overlapping in-band interference will be generated, in the 03 and 04 states, adjacent-band interference will be generated, and in the 05 state, harmonic interference, intermodulation interference or spurious interference will be generated.

[0038] In one example, when the transmission index in the RF performance parameters and communication performance parameters is used for self-test, the self-test algorithm sends a control instruction in the idle or standby time slot of the terminal, and calls the EVM and ACLR index values ​​that are the same as the real-time transmission index obtained in real time according to the real-time transmission index obtained, and controls the terminal's transmitter to enter the spontaneous mode; and the closed-loop feedback collects the transmitter's transmission index EVM and ACLR index, and compares them with the preset transmission index EVM and ACLR thresholds, such as the threshold EVM is 3%, and the threshold ACLR is -35dBc. When the closed-loop feedback device detects that the transmitter's transmission index EVM exceeds 3% or the ACLR exceeds -35dBc, it is determined that there is currently DSS interference. Among them, the transmission indexes EVM and ACLR used for self-test can also be estimated by sampling and calculating the in-phase quadrature signal (IQ).

[0039] In another example, when the self-test is performed with the receiving indicators in the RF performance parameters and the communication performance parameters, the self-test algorithm controls the transmitter to transmit a single carrier (CarrierWave, CW) reference signal with the same frequency as the shared spectrum and the same signal reception level, such as transmitting a continuous single-tone waveform signal with a CELL POWER signal level of -70dB. The signal can be a signal with the same frequency as the shared spectrum frequency, or a signal with a certain frequency offset (such as 500Hz) added to the shared spectrum frequency. After the transmitter transmits the CW wave, the receiver collects the CW wave, performs demodulation and calculates the received signal strength indication (Recieived power, RX) on the terminal side / the received signal strength indication (Received Signal Strength Indication, RSSI) on the base station side, and compares the read RSRP signal with the transmitted level CELL POWER. POWER is compared, the difference is determined, and compared with the preset threshold (such as 3dB). If it is greater than 3dB, it can be determined that the current shared spectrum has interference and the NR spectrum frequency needs to be adjusted to a non-interference position; if it is less than 3dB or close to 0, it can be determined that the current shared spectrum has no or acceptable interference and the spectrum frequency does not need to be adjusted. The schematic diagram of self-testing based on the transmission index and / or reception index in the RF performance parameters and communication performance parameters is as follows Figure 4 shown.

[0040] In addition, the system software algorithm can capture the above IQ sampling values, the NF noise coefficient value between systems and the thermal noise value, and then calculate the C / N carrier-to-noise ratio between the terminal system from the transceiver to the antenna end, and finally convert it into the SEN value; the RSRP value read by the above receiver and the converted SEN value are compared with the corresponding RSRP value and SEN target threshold in the preset DSS interference-free state to determine whether there is interference at present. For example, the target threshold RSRP of N3 in the preset DSS interference-free state is -70+ / -2dB, and the corresponding limit SEN is -93dBm / BW. When N3 is in the shared spectrum mode, the calculated detected RSRP value is -65dB, and the calculated SEN is -89dBm / BW, indicating that the current shared interference is 4-5dB.

[0041] In step 103, if the result is interference after the above judgment, the interference is classified according to the RF performance parameters and communication performance parameters obtained in real time. In one example, the interference is classified according to the frequency information and ACLR of the first communication network and the second communication network, and the network speed of the second communication network is greater than the network speed of the first communication network. For example, the second communication network can be 5G NR and the first communication network can be 4G LTE.

[0042] In one example, DSS interference includes harmonic interference, intermodulation interference, spurious interference, etc. Since NR occupies the spectrum of LTE frequency, and sometimes is very close to or even overlaps with LTE, DSS interference will be generated. The frequency information of LTE and NR is calculated, and the ACLR coexistence spurious value is monitored at the same time to identify the interference type. For example, if the frequency of B1 and N28 is tripled, it is harmonic interference. When B1 and N1 work at the same time, if the frequency is very close and the ACLR coexistence spurious value is greater than the target threshold, it is spurious interference.

[0043] In step 104, according to the classification result, corresponding anti-interference processing is performed on different types of interference. Corresponding processing is performed for different types of interference, making the anti-interference execution process more accurate and efficient.

[0044] If the above parameters that exceed the threshold index change significantly under different adjustment parameters, it indicates that there is a correlation, and the size of the correlation is recorded as the correlation coefficient and stored in the memory; through the correlation between the interference and adjustment parameters, the corresponding or highly correlated anti-interference measures are called. In addition, there is an AI learning process with correlation, and its steps are completed after a round of effective adjustment. That is, the model establishment process of effective adjustment measures and parameters, that is, the self-learning process of the DSS anti-interference parameter model library, establishes a correlation coefficient between each round or the final adjustment measures or parameters and the predetermined target. If effective, the correlation coefficient is increased by 1, if not effective, the correlation coefficient is reduced by 1, and through continuous accumulation and learning, the correlation model library is improved to facilitate more accurate anti-interference adjustment in the future.

[0045] In one example, anti-interference processing is performed by adjusting the transmit power in the dynamic power. For ease of understanding, the following example is given:

[0046] When NR works within the LTE spectrum range, the spurious signals of LTE or NR will cause the uplink and downlink bit error rates (Symbol Error Rate, SER) to be different, which will lead to the deterioration of throughput performance, so the spurious signals need to be eliminated. A significant manifestation of abnormal spurious parameters is that the transmit power of LTE or NR in the real-time acquired RF indicators is relatively high, reaching or approaching the maximum transmit power. At this time, the ACLR margin is small under this power, and the EVM or spurious signals are in the critical range; adjusting the transmit power can affect ACLR, EVM and spurious signals at the same time, and can perform anti-interference processing on spurious interference. Specifically: if it is detected that the difference between the current transmit power of LTE and its maximum transmit power is less than the preset first threshold, the current transmit power of LTE is reduced and the current transmit power of NR is increased; if it is detected that the difference between the current transmit power of NR and its maximum transmit power is less than the preset second threshold, the current transmit power of NR is reduced and the current transmit power of LTE is increased. When reducing the transmit power on one side, compensation is made by increasing the transmit power on the other side, such as Figure 5 As shown, while achieving spurious suppression, the total transmit power is not affected. For example: detect the real-time transmit power of LTE and NR. The transmit power of NR is 23dbm, which has reached the maximum transmit power. The transmit power of LTE is 5dbm. At this time, adjust the transmit power, reduce the transmit power of NR to 20dbm, and increase the transmit power of LTE to 8dbm (or other better power ranges). After adjusting the transmit power, you can also detect the real-time ACLR, EVM, SER or throughput performance to verify whether the anti-interference processing for spurious interference is completed.

[0047] In one example, anti-interference processing is performed by adjusting adaptive modulation parameters, such as MCS, resource block start (RB start), resource block number (RB nub), Rank, sub-carrier spacing (SCS), etc.

[0048] Taking SCS as an example, LTE uses a fixed SCS of 15kHz, and NR supports the mixed use of different parameter sets, that is, it allows the configuration of different SCSs, such as 15kHz, 30kHz, 60kHz, etc. NR reduces inter-symbol interference through the windowing / filtering technology of Orthogonal Frequency Division Multiplexing (OFDM) signals, but LTE does not have windowing / filtering technology, resulting in interference to LTE when NR and LTE share spectrum, if NR is configured with an SCS different from 15kHz, it will cause performance loss to LTE. Therefore, first check whether the current SCS is orthogonal. If not, adjust the SCS of NR to be orthogonal to the SCS of LTE; if the SCS of NR cannot be adjusted, interference still exists after adjusting the SCS to orthogonal, or the original SCS that has not been adjusted is in an orthogonal state, adjust other adaptive modulation parameters until the detected real-time RF indicators meet the threshold requirements of the preset DSS without interference.

[0049] In one example, if it is detected that the channel frequency points overlap or are adjacent, the shared channel is constrained and adjusted according to the channel constraint algorithm. Before processing the interference, the LTE or NR channel is restricted to be within the available range list. By limiting the channel, the interference can be reduced or eliminated. For example, by modifying the RF driver configuration file, a channel restriction mechanism is introduced in the module software. Specifically, when it is detected that the current electronic device is in the DSS working mode of NR, the LTE-NR channel constraint algorithm is used to limit the coexistence channel working range or list of LTE and NR. Only channels within the constraint range or within the specified available list can be shared. Channels outside the constraint range or within the specified list are unavailable and need to be adjusted to channels within the constraint range or within the specified list. Here, constraints can be made by whitelist or blacklist. If it is a whitelist method, the shared spectrum channel value of LTE and NR is specified; if it is a blacklist method, the spectrum channel value that LTE and NR cannot use at the same time is specified. Among them, the channel constraint algorithm comes from the R&D collection values ​​before leaving the factory. It is a scanned collection value based on a large number of data models. The scanning range is the LTE full channel and NR full channel combination of the corresponding frequency band. By collecting the RF indicator values ​​under different channel combinations such as EVM / ACLR / RSRP / BLER, etc., the channels that meet the preset DSS threshold requirements without interference are listed as available channels.

[0050] Among them, channel constraints are not static, but dynamically adjustable. When the LTE channel changes, the NR channel will also change accordingly. The channel combination in the channel constraint algorithm also has a real-time update function. When a new channel combination and condition is generated, and there is interference under this channel, the channel combination and condition will also be automatically added and stored in the channel constraint algorithm, that is, it can autonomously learn and supplement in real time, and can also receive and mark the available channel combinations and unavailable channel combinations entered by the user, and update in real time.

[0051] In one example, a predetermined processing method is pre-stored for changes in some non-complex RF performance parameters and communication performance parameters. That is, when interference judgment is made through RF performance parameters and communication performance parameters, if it is identified as a pre-stored interference condition, the pre-stored anti-interference method corresponding to the interference is called, thereby reducing the dynamic calculation of parameters within the abnormal threshold range and improving the anti-interference processing efficiency.

[0052] In addition, the data preset in the storage space also includes: RF performance parameters and communication performance parameters under different spectrum overlap modes of NR and LTE; NR RF index values ​​within different channel ranges, such as dividing the NR channel into three segments of HML, high, medium and low, or dividing it into multiple segments of ABCDEF according to the degree of interference deterioration under ENDC.

[0053] In this implementation, for the interference generated by the dynamic spectrum sharing process, the interference is classified according to the radio frequency indicators, and the corresponding processing is performed according to the classification results, so that the anti-interference processing is more targeted and the efficiency of the anti-interference processing is improved without reducing the spectrum utilization rate; at the same time, because the radio frequency performance parameters and communication performance parameters are real-time acquired values, real-time feedback can be obtained after the anti-interference processing is performed to verify whether there is still interference, thereby ensuring the completion of the anti-interference processing. In other words, the implementation method of the present application can solve the current 5G terminal self-interference problem in the DSS process, improve the spectrum anti-interference performance of 2 / 3 / 4G and 5GNR, prevent the deterioration of the transmission indicators caused by conflicts or interference in the dynamic process, and receive large bit errors, thereby improving the performance effect of the terminal 5G peak upload and download throughput.

[0054] The second embodiment of the present application relates to an anti-interference method for DSS, and the specific process is as follows: Figure 6 shown.

[0055] Step 201, identifying a frequency band combination for dynamic spectrum sharing;

[0056] Step 202, judging whether there may be interference from dynamic spectrum sharing DSS according to the identified frequency band combination of dynamic spectrum sharing, if there may be interference from DSS, proceeding to step 203; if there may not be interference from dynamic spectrum sharing DSS, ending the process;

[0057] Step 203, judging whether there is interference according to the real-time detected radio frequency performance parameters and communication performance parameters, if yes, proceeding to step 204; if no, returning to step 203;

[0058] Step 204, classifying interference according to radio frequency performance parameters and communication performance parameters;

[0059] Step 205 , according to the classification result, perform corresponding anti-interference processing on different types of interference, and return to step 203 after processing.

[0060] Among them, steps 203 to 205 are substantially the same as those in the first embodiment, and will not be described in detail to avoid repetition. The main difference lies in step 201 and step 202, and the implementation details are described in detail below.

[0061] In step 201, before obtaining real-time RF performance parameters and communication performance parameters, the electronic device system software can also capture shared reporting information to identify the frequency band combination for dynamic spectrum sharing, that is, which frequency band of NR and LTE shares the spectrum, such as B1-N1, B3-N3, B28-N28, B66-N66, B71-N71, etc.

[0062] In addition, identify whether the electronic device is currently in standalone (SA) or non-standalone (NSA) mode, single NR mode, or 5G carrier aggregation (NR-CA) mode. If it is NSA mode, it is also necessary to collect LTE and NR frequency band information under LTE and NR dual connection (E-UTRA-NR-Dual Connectivity, EN-DC). If it is NR-CA mode, NR-CA frequency band information is also required, such as N3-N78; if it is 4G Long Term Evolution-Carrier Aggregation (LTE-CA) plus EN-DC mode, it is necessary to collect LTE-CA and NR frequency band information at the same time, such as B1-B3-N3-N78. The identification results are stored in the memory as an auxiliary reference value for further interference identification and classification.

[0063] In step 202, it is determined whether there is interference from dynamic spectrum sharing DSS based on the identified frequency band combination for dynamic spectrum sharing. If the identification result shows that there is no frequency band combination for dynamic spectrum sharing, it means that there is no interference from DSS, and the process is terminated directly. If there is a frequency band combination for dynamic spectrum sharing, it means that there may be interference from DSS, and the process proceeds to step 203 to determine whether there is interference based on the real-time detected radio frequency performance parameters and communication performance parameters.

[0064] In one example, before obtaining real-time RF performance parameters and communication performance parameters, the spectrum state currently shared by the first communication network and the second communication network is detected, wherein the first communication network may be LTE and the second communication network may be NR. If LTE and NR do not currently share a spectrum, there is no need for subsequent anti-interference processing for DSS; if LTE and NR do not work simultaneously in the currently shared spectrum or there is a spectrum gap in the spectrum (for example, they are in the high and low channel ranges respectively), the interference state is known, and the preset anti-interference parameters can be called for processing, and there is no need to obtain real-time RF performance parameters and communication performance parameters for judgment, classification and corresponding anti-interference processing; if LTE and NR currently share a spectrum, and there is no spectrum gap between LTE and NR in the currently shared spectrum, that is, LTE and NR may have interference, and the interference state is unknown and uncontrollable, so it is necessary to obtain real-time RF performance parameters and communication performance parameters, and perform subsequent judgment, classification and corresponding anti-interference processing. Through this step, the preset controllable interference can be identified, and the processing of controllable interference can reduce the calculation process, improve processing efficiency, and improve user experience.

[0065] In this embodiment, the system block diagram in the DSS state is as follows: Figure 7 , wherein the sharing detection module L1 is used to identify the frequency band combination and working mode of dynamic spectrum sharing based on the sharing reporting information; the DSS interference detection module L2 is used to determine whether there is DSS interference based on the RF performance parameters and communication performance parameters; the DSS interference classification module L3 is used to classify the interference based on the RF performance parameters and communication performance parameters; the pre-interference adjustment module L4 is used to call the preset anti-interference parameters to process the known relatively simple interference state; the real-time calculation adjustment module L5 performs calculation and analysis based on the acquired real-time RF performance parameters and communication performance parameters, and calls the corresponding anti-interference processing module for corresponding processing; the shared channel constraint anti-interference module L6 is used to constrain and adjust the channel; the dynamic power control anti-interference module L7 is used to process stray interference; the modulation parameter adjustment anti-interference module L8 is used to process harmonic interference and intermodulation interference; at the same time, there is also a parameter storage module (not shown) connected to each operation and judgment module to provide parameter support for the anti-interference processing process.

[0066] Specifically, the parameter storage module may include the following information: different RF transceiver index values ​​and field measurement index values ​​under different spectrum overlap modes of NR and LTE, that is, the index parameter values ​​in the dynamic spectrum sharing mode; NR RF index values ​​within different channel ranges, such as dividing the NR channel into three segments of high, medium and low HML, or dividing it into multiple segments of ABCDEF according to the interference deterioration degree under random access ENDC (EUTRA-NRDual Connectivity, ENDC); transmission index values ​​of different target transmission powers in non-dynamic power sharing mode, and transmission index values ​​in dynamic power sharing mode; different modulation coefficients, such as different RB numbers, MCS, and transmission index values ​​under time slots SLOT, and throughput and bit error values ​​under different receiving gains and receiving levels. The pre-interference adjustment module L4, the shared channel constraint anti-interference module L6, the dynamic power control anti-interference module L7 and the modulation parameter adjustment anti-interference module L8 can perform anti-interference processing according to the parameters stored in the parameter storage module.

[0067] The pre-interference adjustment module L4 is mainly used for anti-interference adjustment in situations where dynamic sharing is not very complicated. For example, in the spectrum used by NR, LTE used in the same time period is not working at the same time, but other LTE frequency bands are working. For example, when N3 is working, B3 is not working, only B1 is working. Secondly, B3 and N3 work at the same time, but in different spectrum ranges. B3 is in the low channel range, and N3 is in the high channel range. There is a certain spectrum interval between the two. The interference state between them is known, so the pre-interference adjustment module L4 can be called to limit LTE and NR to different spectrum ranges, or the anti-interference processing modules of L6-L8 can be called for adjustment and optimization.

[0068] The real-time calculation and adjustment module L5 is connected to the anti-interference processing modules L4, L6 to L8, and is mainly used to calculate the anti-interference adjustment in the case of dynamic sharing. When NR and LTE are sharing the spectrum under the same frequency band, the frequency point is in dynamic change and is not easy to divide and pre-process. At this time, it is necessary to call the real-time calculation and adjustment module to monitor and calculate the current interference in real time, and update the calculation results to the parameter storage module in real time. At the same time, the anti-interference processing modules of L6-L8 are also called for adjustment and optimization.

[0069] In this embodiment, it is first detected whether the first communication network and the second communication network currently have a shared spectrum; after determining that the spectrum is shared, real-time parameters are further received to determine whether there is interference, and anti-interference processing is performed. This avoids useless reception of DSS parameters and interference judgment processes, and reduces the system resource usage of the device for anti-interference processing.

[0070] The step division of the above methods is only for the purpose of clear description. When implemented, they can be combined into one step or some steps can be split and decomposed into multiple steps. As long as they include the same logical relationship, they are all within the scope of protection of this patent; adding insignificant modifications to the algorithm or process or introducing insignificant designs without changing the core design of the algorithm and process are all within the scope of protection of this patent.

[0071] The third embodiment of the present application relates to an anti-interference device for DSS, such as Figure 8 As shown, including:

[0072] An acquisition module 301 is used to acquire real-time radio frequency performance parameters and communication performance parameters;

[0073] A determination module 302 is used to determine whether there is interference from dynamic spectrum sharing DSS according to radio frequency performance parameters and communication performance parameters;

[0074] A classification module 303, for classifying interference according to radio frequency performance parameters and communication performance parameters if interference exists;

[0075] The processing module 304 is used to perform corresponding anti-interference processing on different types of interference according to the classification result.

[0076] For the acquisition module 301, in an example, before acquiring the real-time RF performance parameters and communication performance parameters, it is detected whether the first communication network and the second communication network currently have a shared spectrum; if the first communication network and the second communication network currently have a shared spectrum, and there is no spectrum gap between the first communication network and the second communication network in the shared spectrum, then the real-time RF performance parameters and communication performance parameters are acquired again.

[0077] For the determination module 302, in one example, the RF performance parameters and the communication performance parameters are compared with the preset RF performance index and the communication performance index threshold under DSS interference-free conditions to determine whether there is DSS interference.

[0078] For the classification module 303, in one example, interference is classified according to the frequency information and adjacent channel rejection ratio ACLR of the first communication network and the second communication network; wherein the types of interference include: harmonic interference, intermodulation interference, and spurious interference; and the network speed of the second communication network is greater than the network speed of the first communication network.

[0079] For the processing module 304, the dynamic power in the DSS is adjusted, for example: the current transmission power of the first communication network and the second communication network is detected; if the difference between the current transmission power of the first communication network and the maximum transmission power of the first communication network is less than the preset first threshold, the current transmission power of the first communication network is reduced, and the current transmission power of the second communication network is increased; if the difference between the current transmission power of the second communication network and the maximum transmission power of the second communication network is less than the preset second threshold, the current transmission power of the second communication network is reduced, and the current transmission power of the first communication network is increased.

[0080] Adjust the adaptive modulation parameters, for example: detect whether the current SCS is orthogonal; if the SCS is not orthogonal, adjust the SCS of the second communication network to be orthogonal to the SCS of the first communication network; wherein, if the SCS adjustment fails or interference still exists after the SCS is adjusted to be orthogonal, adjust the adaptive modulation parameters of the second communication network.

[0081] If the interference is channel interference, then the shared channel is constrained and adjusted according to a channel constraint algorithm; the channel interference is the overlap or proximity of channel frequencies.

[0082] In this implementation, for the interference generated by the dynamic spectrum sharing process, the interference is classified according to the radio frequency indicators, and the corresponding processing is performed according to the classification results, so that the anti-interference processing is more targeted and the efficiency of the anti-interference processing is improved without reducing the spectrum utilization rate; at the same time, because the radio frequency performance parameters and communication performance parameters are real-time acquired values, real-time feedback can be obtained after the anti-interference processing is performed to verify whether there is still interference, thereby ensuring the completion of the anti-interference processing. In other words, the implementation method of the present application can solve the current 5G terminal self-interference problem in the DSS process, improve the spectrum anti-interference performance of 2 / 3 / 4G and 5GNR, prevent the deterioration of the transmission indicators caused by conflicts or interference in the dynamic process, and receive large bit errors, thereby improving the performance effect of the terminal 5G peak upload and download throughput.

[0083] It is not difficult to find that this embodiment is a system embodiment corresponding to the above embodiment, and this embodiment can be implemented in conjunction with the above embodiment. The relevant technical details mentioned in the above embodiment are still valid in this embodiment, and in order to reduce repetition, they are not repeated here. Accordingly, the relevant technical details mentioned in this embodiment can also be applied in the above embodiment.

[0084] It is worth mentioning that all modules involved in this embodiment are logic modules. In practical applications, a logic unit can be a physical unit, a part of a physical unit, or a combination of multiple physical units. In addition, in order to highlight the innovative part of this application, this embodiment does not introduce units that are not closely related to solving the technical problems proposed by this application, but this does not mean that there are no other units in this embodiment.

[0085] A fourth embodiment of the present application relates to an electronic device, such as Fig. 9 As shown, it includes at least one processor 401; and a memory 402 that is communicatively connected to the at least one processor 401; wherein the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the above-mentioned anti-interference method for DSS.

[0086] Among them, the memory and the processor are connected in a bus manner, and the bus may include any number of interconnected buses and bridges, and the bus connects various circuits of one or more processors and memories together. The bus can also connect various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface between the bus and the transceiver. The transceiver can be one element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices on a transmission medium. The data processed by the processor is transmitted on a wireless medium via an antenna, and further, the antenna also receives data and transmits the data to the processor.

[0087] The processor is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. Memory can be used to store data used by the processor when performing operations.

[0088] The fifth embodiment of the present application relates to a computer-readable storage medium storing a computer program, which implements the above method embodiment when executed by a processor.

[0089] That is, those skilled in the art can understand that all or part of the steps in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a program, and the program is stored in a storage medium, including several instructions to enable a device (which can be a single-chip microcomputer, chip, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0090] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present application, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present application.

Claims

1. An anti-interference method for DSS, characterized in that: include: Obtain real-time RF performance parameters and communication performance parameters; Determine whether there is interference from dynamic spectrum sharing (DSS) according to the radio frequency performance parameter and the communication performance parameter; If interference exists, classifying the interference according to the radio frequency performance parameter and the communication performance parameter; According to the classification result, performing corresponding anti-interference processing on different types of interference; The performing corresponding anti-interference processing on different types of interference includes: Detect the current transmission power of the first communication network and the second communication network; if the difference between the current transmission power of the first communication network and the maximum transmission power of the first communication network is less than a preset first threshold, reduce the current transmission power of the first communication network and increase the current transmission power of the second communication network; if the difference between the current transmission power of the second communication network and the maximum transmission power of the second communication network is less than a preset second threshold, reduce the current transmission power of the second communication network and increase the current transmission power of the first communication network; And / or, adjust the adaptive modulation parameters; the adaptive modulation parameters include one of the following or any combination thereof: subcarrier spacing SCS of 5G new air interface NR, modulation and coding strategy MCS, resource block RB, time slot SLOT, symbol SYMBOL.

2. The anti-interference method for DSS according to claim 1, characterized in that: The classifying the interference according to the radio frequency performance parameter and the communication performance parameter includes: Classifying the interference according to frequency information and radio frequency performance parameters of the first communication network and the second communication network; The type of interference includes one of the following or any combination thereof: harmonic interference, intermodulation interference, spurious interference, and channel interference; and the network speed of the second communication network is greater than the network speed of the first communication network.

3. The anti-interference method for DSS according to claim 1, characterized in that: According to the classification result, performing corresponding anti-interference processing on different types of interference includes: According to the classification result and the correlation coefficient, performing corresponding anti-interference processing on different types of interference; The correlation coefficient is updated in real time according to the processing result of the anti-interference processing on the different types of interference.

4. The anti-interference method for DSS according to claim 2, characterized in that: Before obtaining the real-time radio frequency performance parameters and communication performance parameters, the following steps are included: Detecting whether the first communication network and the second communication network currently have a shared spectrum; If the first communication network and the second communication network currently share a spectrum, and there is no spectrum gap between the first communication network and the second communication network in the shared spectrum, the step of obtaining real-time RF performance parameters and communication performance parameters is performed again.

5. The anti-interference method for DSS according to any one of claims 1 to 4, characterized in that: The obtaining of real-time radio frequency performance parameters and communication performance parameters includes: The real-time radio frequency performance parameters and communication performance parameters are obtained through the test algorithm and the self-transmission and self-reception.

6. An anti-interference device for DSS, characterized in that: include: An acquisition module is used to obtain real-time radio frequency performance parameters and communication performance parameters; A determination module, used to determine whether there is interference from dynamic spectrum sharing DSS according to the radio frequency performance parameters and the communication performance parameters; A classification module, for classifying the interference according to the radio frequency performance parameters and the communication performance parameters if interference exists; A processing module, used to perform corresponding anti-interference processing on different types of interference according to the classification result, and the processing module is specifically used to detect the current transmission power of the first communication network and the second communication network; if the difference between the current transmission power of the first communication network and the maximum transmission power of the first communication network is less than a preset first threshold, the current transmission power of the first communication network is reduced, and the current transmission power of the second communication network is increased; If the difference between the current transmit power of the second communication network and the maximum transmit power of the second communication network is less than a preset second threshold, reducing the current transmit power of the second communication network and increasing the current transmit power of the first communication network; And / or, adjust the adaptive modulation parameters; the adaptive modulation parameters include one of the following or any combination thereof: subcarrier spacing SCS of 5G new air interface NR, modulation and coding strategy MCS, resource block RB, time slot SLOT, symbol SYMBOL.

7. An electronic device, characterized in that: include: at least one processor; as well as, a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the anti-interference method for DSS as claimed in any one of claims 1 to 5.

8. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the anti-interference method for DSS according to any one of claims 1 to 5 is implemented.

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