CN113676915A

CN113676915A - Communication method, communication apparatus, communication device, and storage medium

Info

Publication number: CN113676915A
Application number: CN202111144714.6A
Authority: CN
Inventors: 魏海龙; 潘雷; 叶祖铨; 黄小锋
Original assignee: Comba Network Systems Co Ltd
Current assignee: Comba Network Systems Co Ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2021-11-19
Anticipated expiration: 2041-09-28
Also published as: CN113676915B

Abstract

The application relates to a communication method, a communication device and a storage medium. The method comprises the following steps: acquiring carrier information configured by communication equipment; configuring the CFR level of the communication equipment to a target CFR level according to the carrier information so that the communication equipment provides communication service based on the target CFR level; the target CFR series is the minimum CFR series which enables the peak-to-average ratio of the target communication signal not to be larger than the peak clipping threshold value, and the target communication signal is a signal determined according to the carrier information. The method can ensure that the target communication signal processed by the communication equipment can meet the communication requirement, realize the communication coverage, reduce the CFR level of the communication equipment, realize the flexible adjustment of the processing time delay of the communication equipment, and ensure that the communication equipment with the same structure can support the communication coverage of various remote distances. Therefore, different communication devices do not need to be researched and developed according to different remote distances, and the effect of reducing the cost is achieved.

Description

Communication method, communication apparatus, communication device, and storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a communication method, an apparatus, a computer device, and a storage medium.

Background

With the rapid development of wireless Communication Technology, the increasing speed and decreasing cost policy is gradually released, the number of Mobile users is increasing more and more, and at the same time, more and more users tend to communicate through 4G LTE (4th Generation Mobile Communication Technology Long Term Evolution, fourth Generation Mobile Communication Technology Long Term Evolution) and 5G (5th Generation Mobile Communication Technology, fifth Generation Mobile Communication Technology). This forces operators to continuously enhance the coverage and quality of 4G and 5G communications, mainly covering large cities and towns from the past few years, and to gradually develop to now consider full coverage in rural, remote mountain areas, etc.

In rural areas, remote mountain areas and the like, mobile subscriber distribution has the characteristics of relatively small number of subscribers and non-centralized subscriber distribution, so that the comprehensive coverage of the area needs to be realized by communication equipment with long remote distance. However, the communication device originally used for communication to cover cities and towns has limited remote distance, and is difficult to provide communication service in remote scenes, so that the communication device cannot be directly adopted to cover rural areas and remote mountain areas. Therefore, manufacturers of the devices need to choose longer-distance chips to redesign suitable communication devices.

Therefore, equipment manufacturers need to research and develop different communication equipment aiming at a long-distance scene to adapt to different application environments, so that the research and development cost and the maintenance cost are increased, and the cost of the communication equipment is correspondingly increased; the operator needs to arrange and maintain a special communication device for a long-distance scene, and the purchase cost and the maintenance cost of the special communication device are correspondingly increased; in short, there is a problem of excessive cost.

Disclosure of Invention

In view of the above, it is necessary to provide a communication method, an apparatus, a communication device and a storage medium capable of adjusting the processing delay of the communication device so that the communication device can meet different remote distance requirements, thereby reducing the cost.

A method of communication, the method comprising:

acquiring carrier information configured by communication equipment;

configuring a crest factor reduction CFR level of the communication equipment into a target CFR level according to the carrier information so that the communication equipment provides communication service based on the target CFR level; the target CFR series is the minimum series which enables the peak-to-average ratio of the target communication signal not to be larger than the peak clipping threshold, and the target communication signal is a signal determined according to the carrier information.

In one embodiment, the step of configuring the communication device and the CFR stage as a target CFR stage according to the carrier information includes:

acquiring the current CFR stage number and generating a test signal corresponding to the carrier information;

according to the current CFR series, performing crest factor reduction processing on the test signal to obtain a processed signal;

and if the peak-to-average ratio of the processed signal is not greater than the peak clipping threshold value, determining the current CFR series as the target CFR series, and configuring the CFR series of the communication equipment as the target CFR series.

In one embodiment, the step of configuring the communication device and the CFR stage as a target CFR stage according to the carrier information further includes:

if the peak-to-average ratio of the processed signal is larger than the peak clipping threshold value, the current CFR series is adjusted up to preset adjustment step length, peak factor clipping processing is carried out on the test signal according to the adjusted current CFR series to obtain the processed signal, and the steps are repeated until the peak-to-average ratio of the processed signal is not larger than the peak clipping threshold value;

and confirming the current CFR series as a target CFR series, and configuring the CFR series of the communication equipment as the target CFR series.

In one embodiment, the communication method further includes:

periodically acquiring the peak-to-average ratio of the processed signals, and comparing the peak-to-average ratio of each processed signal with a peak clipping threshold value;

if the peak-to-average ratio of the processed signal is not greater than the peak clipping threshold value, the step of confirming the current CFR series as the target CFR series comprises the following steps:

and if the peak-to-average ratio of each processed signal acquired in the preset judging time period is not greater than the peak clipping threshold value, determining the current CFR series as the target CFR series.

In one embodiment, the step of configuring the CFR order of the communication device as the target CFR order according to the carrier information further includes:

obtaining the total carrier bandwidth of the communication equipment according to the carrier information;

and acquiring a corresponding relation between the total carrier bandwidth and the CFR series, acquiring an initial CFR series corresponding to the total carrier bandwidth of the communication equipment from the corresponding relation, and configuring the CFR series of the communication equipment into the initial CFR series when the CFR series is configured for the first time.

In one embodiment, the method further comprises: and alarming based on the comparison result.

In one embodiment, the method further comprises:

determining the remote distance time delay of the communication equipment according to the target CFR series;

and determining the maximum remote distance of the communication equipment based on the remote distance time delay so that the communication equipment provides communication service according to the maximum remote distance.

In one embodiment, the step of determining the remote delay of the communication device according to the target CFR progression comprises:

acquiring the maximum advance time of a physical layer, and determining the processing time delay of the communication equipment according to the target CFR series;

and confirming the difference between the maximum advance time and the processing time delay as the remote time delay.

In one embodiment, the step of determining the maximum zoom-out distance of the communication device based on the zoom-out time delay includes:

and acquiring the transmission time delay of the remote material per unit distance, and determining the ratio of the remote time delay to the transmission time delay per unit distance as the maximum remote distance.

A communications apparatus, the apparatus comprising:

the carrier information acquisition module is used for acquiring carrier information configured by the communication equipment;

a target CFR stage configuration module, configured to configure a crest factor reduction CFR stage of the communication device as a target CFR stage according to the carrier information, so that the communication device provides communication service based on the target CFR stage; the target CFR series is the minimum CFR series which enables the peak-to-average ratio of the target communication signal not to be larger than the peak clipping threshold value, and the target communication signal is a signal determined according to the carrier information.

A communication device comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:

acquiring carrier information configured by communication equipment;

A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of:

acquiring carrier information configured by communication equipment;

In the communication method, the communication device and the storage medium, the CFR series of the communication device is configured to be the minimum CFR series that can enable the peak-to-average ratio of the target communication signal to satisfy the peak clipping threshold value according to the carrier information configured by the communication device. Wherein the target communication signal is a signal determined from the carrier information. When the communication equipment provides communication service based on the configured minimum CFR level, the target communication signal processed by the communication equipment can meet the communication requirement, communication coverage is realized, the CFR level of the communication equipment is reduced, flexible adjustment of the processing delay of the communication equipment is realized, and the communication equipment with the same structure can support communication coverage of various remote distances. Therefore, the communication coverage of various remote distances can be met through one or a small number of communication equipment, different communication equipment does not need to be researched and developed aiming at different remote distances, on one hand, extra research and development cost can be reduced, on the other hand, an operator can maintain less communication equipment under various application environments, maintenance cost is reduced, and cost reduction effect is achieved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a diagram of an application environment of a communication method in one embodiment;

FIG. 2 is a first flowchart of a communication method according to an embodiment;

FIG. 3 is a first flow diagram illustrating configuring a target CFR stage according to one embodiment;

FIG. 4 is a flow diagram illustrating the process of obtaining an initial CFR stage number according to one embodiment;

FIG. 5 is a second flow diagram illustrating configuring a target CFR stage according to one embodiment;

FIG. 6 is a second flow diagram of a method of communication in one embodiment;

FIG. 7 is a first flow diagram illustrating the determination of a remote delay in one embodiment;

FIG. 8 is a third flow diagram of a method of communication in one embodiment;

FIG. 9 is a block diagram of a communication device in one embodiment;

fig. 10 is an internal configuration diagram of a communication device in one embodiment.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Also, as used in this specification, the term "and/or" includes any and all combinations of the associated listed items.

As described in the background art, in the conventional technology, the same communication device cannot satisfy multiple application scenarios with long remote distances, so different communication devices need to be designed for different remote distances, development cost and maintenance cost in a communication process are increased, and a problem of high cost exists. The inventor researches and finds that the problem is caused because the existing communication equipment, such as a communication base station, a digital DAS (Distributed Antenna System), a repeater and the like, needs to support multi-carrier and broadband signal processing and support a high-order modulation coding mode applied in 4G and 5G communication, so that the peak-to-average ratio of communication signals in the communication System is high. In order to ensure reliable communication, the existing communication device needs to adopt a CFR (peak Factor Reduction) technology to effectively control the peak-to-average ratio of the communication signal, so as to reduce the processing pressure of the subsequent power amplifier. However, in the 4G and 5G technologies era, the processing delay of CFR is generally large, and the use of CFR technology may cause the processing delay of the downlink of the communication device to increase sharply, which greatly reduces the remote distance of the communication device with two or more levels of architectures, especially in the scenario of cascading communication devices, the remote distance is reduced more obviously.

Further, the inventors found, after intensive research, that the application of the CFR technique greatly increases the processing delay because the CFR is not configured in a hierarchical manner or the number of CFR stages is fixed in the existing communication device. In an embodiment where the CFR is fixed, the CFR order is determined according to the widest (or relatively wider) total bandwidth of the carrier, which is generally the maximum CFR order supported by the CFR algorithm. In other words, the existing communication device processes communication signals using the maximum CFR stage number that can satisfy high-capacity communication regardless of the number of carriers and the total bandwidth of the carriers corresponding to the communication device. In the multi-stage CFR processing process, the communication device performs processing sequentially and stage by stage, that is, at the same time, the communication device performs only one stage of CFR without performing parallel processing on each stage of CFR. Therefore, the larger the CFR number is, the longer the processing delay of the communication device is, and the shorter the remote distance is. Therefore, the prior art needs to design different communication devices for different zoom-out distances.

Based on this, it is necessary to provide a communication method, an apparatus, a communication device, and a storage medium. The CFR series can be flexibly adjusted according to the carrier information configured by the communication equipment, so that the adjustment of the processing time delay of the communication equipment (such as shortening of the processing time delay) is realized. Therefore, the same communication equipment can support communication coverage of various remote distances, so that the research and development cost and the maintenance cost are reduced, and the effect of low cost is achieved.

The communication method provided by the application can be applied to a communication system. The communication system can support any communication system, including but not limited to any 2G communication system (such as GSM, EGSM, DCS1800 and PCS1800), any 3G communication system (such as CDMA, TD-SCDMA and WCDMA), any 4G communication system (such as TD-LTE and FD-LTE) and any 5G communication system, or any combination thereof, and has a wide application range.

The communication system includes one or more communication devices, any of which may be, but is not limited to, a base station, a digital DAS, or a repeater. When the number of the communication devices is multiple, the connection relationship between the communication devices may be determined according to the distribution of the areas to be covered, the hardware parameters of the communication devices, and/or the communication requirements, and the like, which is not particularly limited in the present application.

The communication system may further include a control device, where the control device is a device for configuring communication parameters (such as frequency points, bandwidths, and the like) of the communication device. The control device may be implemented by a device (such as an additionally provided controller) independent of the communication device, or may be implemented by the communication device. When the control device is an independent device, the control device may communicate with each communication device to configure the CFR progression of each communication device according to the carrier information of each communication device. When the control device is charged by the communication device, at least the following two cases are included: (1) and each communication device configures the CFR series of the device according to the carrier information of the device. (2) Each communication device may be divided into a master communication device and a slave communication device, each master communication device communicating with its corresponding slave communication device to configure the CFR progression of the slave communication device according to the carrier information of each slave communication device. Meanwhile, the main communication device can also configure the CFR stage number of the device according to the carrier information of the device.

In an embodiment, referring to fig. 1, fig. 1 shows a communication system 100 with 3 levels of cascade connection in a chain-type networking, that is, the communication system 100 includes 3 sequentially cascaded communication devices 102, a control device is served by the communication device 102, and each communication device 102 may configure the CFR level of the device according to the carrier information of the device. Each communication device 102 is configured to provide communication services to terminals 104 located within a service area of the device according to the configured CFR number to achieve communication coverage of the area. The terminal 104 may be, but is not limited to, various personal computers, notebook computers, smart phones, tablet computers, and portable wearable devices.

In one embodiment, as shown in fig. 2, a communication method is provided, which is described by taking the method as an example applied to the communication device (control device) in fig. 1, and includes the following steps:

step 200, carrier information configured by the communication equipment is obtained.

The carrier information of the communication device can be configured according to the application environment. The carrier information reflects communication signals supported by the communication device, including but not limited to any one or any combination of carrier frequency points, number of carriers, and carrier bandwidth. For example, a communication device may be configured with multiple carriers when providing communication coverage to a town region; in providing communication services to rural or remote mountain areas, one or a few carriers may be configured. The frequency and bandwidth of the carrier can be determined according to the communication system supported by the operator, the communication requirement and other factors.

Step 300, according to the carrier information, configuring crest factor reduction CFR levels of the communication equipment into target CFR levels, so that the communication equipment provides communication service based on the target CFR levels; the target CFR series is the minimum CFR series that makes the peak-to-average ratio of the target communication signal not greater than (i.e., less than or equal to) the peak clipping threshold, and the target communication signal is a signal determined according to the carrier information.

The peak clipping threshold is a threshold corresponding to the crest factor reduction processing, and is used for indicating the reduction amplitude of the communication signal. The peak reduction threshold may be determined according to the hardware structure of the communication device (or the communication system), and in one embodiment, the peak reduction threshold may be preset.

Specifically, the communication device may perform crest factor reduction processing on the communication signal according to the configured CFR series, so that the signal peak value of the communication signal is smaller than or equal to a peak reduction threshold value, thereby reducing a difference between the signal peak value and the signal mean value of the communication signal, facilitating processing by a subsequent circuit (such as a power amplifier circuit), and reducing processing pressure of the subsequent circuit. If the CFR stage configuration of the communication device is too small, a peak leakage phenomenon is easily caused in the communication signal after the crest factor reduction processing, that is, the amplitude value corresponding to the processed communication signal on at least one frequency point is higher than the amplitude threshold value, so that the peak-to-average ratio of the signal does not meet the processing requirement of the post-stage circuit, and the processing pressure of the post-stage circuit is increased. In this case, the communication signal output from the subsequent circuit is distorted, and the reliability of communication is lowered. If the CFR series configuration of the communication device is too large, the processing delay of the communication device is increased, which results in a limitation in the remote distance of the communication device, difficulty in arrangement in a remote area, and poor applicability.

In the crest factor reduction processing process, signal bandwidths and/or carrier numbers which can be actually processed by CFRs of different levels may be different, and meanwhile, carrier information configured by communication equipment is different, and requirements of the communication equipment on the CFR levels are also different. When the communication device configures a communication signal with a larger bandwidth or more carriers, the communication signal is more likely to have not only a peak exceeding the amplitude threshold but also a plurality of peaks exceeding the amplitude threshold (i.e., the communication signal has more frequency points corresponding to the amplitude exceeding the amplitude threshold) than a communication signal with a smaller bandwidth or fewer carriers supported by the communication device. In order to ensure the processing effect of the CFR, a larger CFR stage is required to be configured at this time, so that the peak-to-average ratio of the communication signal after being reduced meets the requirement of a subsequent stage circuit. On the contrary, when the communication device configures a communication signal with a smaller bandwidth or a smaller number of carriers, the communication device may configure a smaller CFR number, so as to reduce the processing delay of the communication device while ensuring the crest factor reduction processing effect, so as to increase the remote distance of the device.

In this application, the communication device adjusts the CFR level of the device according to the carrier information configured by the device, and configures the CFR level of the device to be the minimum CFR level that enables the peak-to-average ratio of the communication signal (i.e., the target communication signal) corresponding to the carrier information to satisfy the requirement of the peak clipping threshold. In other words, the communication device is configured according to the minimum CFR number which can meet the communication requirement, the CFR number configured by the communication device is determined according to the carrier information configured by the device, and the CFR number is flexibly adjusted along with the change of the carrier information.

After the CFR series configuration is completed, the communication equipment performs crest factor reduction processing on the target communication signal according to the configured CFR series, and provides communication service support for each terminal in the service area. Under the configuration, the communication equipment can ensure that the target communication signal after crest factor reduction processing can meet the processing requirement of a post-stage circuit, ensure the reliability of communication, and can also reduce the CFR number, thereby achieving the effects of reducing the processing delay of the communication equipment and increasing the remote distance of the communication equipment, and further widening the application scene of the communication equipment.

For example, in an area with densely distributed users and a large number of users, the communication device is configured with a plurality of carriers, and to ensure the reduction effect, the CFR number of the communication device may be configured to be 3 to ensure that the peak value of the plurality of carriers exceeding the peak reduction threshold value can be detected and reduced. In this case, the processing delay of the entire CFR function of the communication apparatus is 12us (microseconds), and for the communication system shown in fig. 1, the CFR processing delay of the entire communication system is 36 us. For an area with a small number of users and a distributed user distribution, the communication device is configured with 1 carrier (e.g., LTE 20MHz bandwidth carrier) to meet the communication requirement. In this case, the CFR stage number of the communication device is configured to be 1 stage, i.e., the requirement of controlling the signal peak-to-average ratio can be satisfied. At this time, the processing delay of the whole CFR function of the communication device is reduced to one third of the former case, namely, from 12us to 4us, and the processing delay is shortened by 8 us. In the communication system shown in fig. 1, the CFR processing delay of the entire communication system can be shortened by 24us (3 × 8). If the communication system is extended by optical fiber, the configuration level 1 CFR can be extended by 4.8 km more than the configuration level 3 CFR.

It is understood that, besides the above implementation manner of automatically configuring the CFR series through the communication device, the present application may also implement the configuration of the CFR series through a manual configuration manner.

In this embodiment, the CFR series of the communication device is configured to be the minimum CFR series that can enable the peak-to-average ratio of the target communication signal to satisfy the peak clipping threshold value according to the carrier information configured by the communication device. Wherein the target communication signal is a signal determined from the carrier information. When the communication equipment provides communication service based on the configured minimum CFR level, the target communication signal processed by the communication equipment can meet the communication requirement, communication coverage is realized, the CFR level of the communication equipment is reduced, flexible adjustment of the processing delay of the communication equipment is realized, and the communication equipment with the same structure can support communication coverage of various remote distances. Therefore, the communication coverage of various remote distances can be met through one or a small number of communication equipment, different communication equipment does not need to be researched and developed aiming at different remote distances, on one hand, extra research and development cost can be reduced, on the other hand, an operator can maintain less communication equipment under various application environments, maintenance cost is reduced, and cost reduction effect is achieved.

In one embodiment, as shown in FIG. 3, step 300 includes:

step 310, acquiring the current CFR stage number and generating a test signal corresponding to the carrier information;

step 320, according to the current CFR stage, performing crest factor reduction processing on the test signal to obtain a processed signal;

step 330, if the peak-to-average ratio of the processed signal is not greater than the peak clipping threshold, determining that the current CFR stage is the target CFR stage, and configuring the CFR stage of the communication device as the target CFR stage.

The current CFR number is a CFR number configured by the communication device at the current time. In one embodiment, when the communication device is in a first round of CFR adjustment (i.e., first configuration), the current CFR progression may be configured as the initial CFR progression.

The test signal corresponds to the carrier information and is used for simulating a target communication signal in a real communication process. In one embodiment, the test signal is a pre-stored mode signal of various carrier bandwidths in a normal communication process, such as an LTE signal and an NR (New Radio, New air interface) signal.

Specifically, the communication device may trigger generation of a test signal corresponding to the carrier information, and take the test signal as a signal to be processed. In this way, the processing procedure of the communication device on the target communication signal can be simulated through the test signal. In the processing process, the communication equipment acquires the current CFR series of the equipment, and carries out crest factor reduction processing on the test signal based on the current CFR series to obtain a processed signal. In one embodiment, the communication device may further perform crest factor reduction processing on the test signal according to a peak reduction threshold and a current CFR number to obtain a processed signal.

And under the condition that the peak-to-average ratio of the processed signal is not greater than the peak clipping threshold value, the CFR series currently configured is indicated to be appropriate and can meet the communication requirement, the communication equipment confirms the CFR series at the moment as the target CFR series, and configures the CFR series of the equipment as the target CFR series. In one embodiment, the communication device may determine whether the peak-to-average ratio of the processed signal is less than or equal to a peak clipping threshold by: the communication equipment acquires the peak-to-average ratio of the processed signal and compares the peak-to-average ratio peak clipping threshold value of the processed signal, so that whether the peak-to-average ratio of the processed signal meets the processing requirement of a post-stage circuit or not can be determined through the comparison result, and whether the CFR peak clipping result is normal or not can be further determined. The communication device can judge whether the currently configured CFR stage is appropriate according to the comparison result, and accordingly, the target CFR stage is determined. Further, when the unit of the signal peak value and the signal mean value is dBm, the communication device may confirm a difference between the signal peak value and the signal mean value as a peak-to-average ratio of the processed signal.

In one embodiment, the communication device may further detect a peak value of the processed signal to determine whether the processed signal has a peak leakage phenomenon, i.e., whether a corresponding amplitude value at least one frequency point is greater than an amplitude threshold value. And the communication equipment determines a target CFR stage according to the comparison result, the detection result and the current CFR stage so as to improve the reliability of the test result and further ensure the communication performance.

In this embodiment, a target communication signal in a real communication process is simulated by the test signal, and crest factor reduction processing is performed on the test signal according to the current CFR series. And when the peak-to-average ratio of the processed signal is not greater than the peak clipping threshold value, determining and configuring a target CFR stage according to the current CFR stage, so that the configured target CFR stage can ensure that the peak-to-average ratio of the target communication signal is less than or equal to the peak clipping threshold value, and further the communication performance is ensured.

In one embodiment, step 300 further comprises:

Specifically, when the peak-to-average ratio of the processed signal is greater than the peak clipping threshold, it indicates that the currently configured CFR number does not meet the communication requirement, and needs to be adjusted. For convenience of description, in the process of determining a target CFR series, the nth value of the CFR series is CS_NWherein N is a positive integer. It can be understood that CS₁For the first value of the CFR series (i.e., the initial CFR series), CS₂For the second value of the CFR series, CS₅The fifth value of the CFR series.

When using CS_NWhen the crest factor reduction processing is performed on the test signal, the obtained processed signal is SS_N，SS_NHas a peak-to-average ratio of PAP_N. It will be appreciated that when using CS₁When the crest factor reduction processing is performed on the test signal, the obtained processed signal is SS₁，SS₁Has a peak-to-average ratio of PAP₁(ii) a When using CS₂When the crest factor reduction processing is performed on the test signal, the obtained processed signal is SS₂，SS₂Has a peak-to-average ratio of PAP₂. The rest of CS_N、SS_NAnd PAP_NAll as understood herein.

Specifically, in the determination of the target CFR stage number, if the processed signal SS is_NPAP of (A)_NIf the CFR is greater than the peak clipping threshold value, the communication device can set the current CFR series CS_NAdjusting up a preset adjustment step length, wherein after the adjustment, the current CFR stage number is CS_N+1. Communication device passing through CS_N+1Crest factor of test signalReduction processing to obtain a signal SS based on the processed signal_N+1PAP of (A)_N+1Determining a current CFR progression CS_N+1Whether it is appropriate. If PAP_N+1If the current CFR series is still larger than the peak clipping threshold value, the current CFR series CS can be set_N+1And the preset adjustment step length is adjusted up again. After the second up-regulation, the current CFR stage number is CS_N+2. Communication device passing through CS_N+2Performing crest factor reduction processing on the test signal to obtain a processed signal SS_N+2PAP of (A)_N+2Determining a current CFR progression CS_N+2Whether it is appropriate. If PAP_N+2Still greater than the peak clipping threshold, the communication device may refer to the above procedure to rank the current CFR CS_N+2And (4) carrying out up-regulation.

After each CFR series is adjusted, crest factor reduction processing is carried out on the test signal based on the current CFR series after the CFR series is adjusted, and the peak-to-average ratio of the processed signal is compared with a peak clipping threshold value until the peak-to-average ratio of the processed signal is smaller than or equal to the peak clipping threshold value. And under the condition that the peak-to-average ratio of the processed signal is less than or equal to the peak clipping threshold value, the communication equipment confirms the current CFR series as the target CFR series, and configures the CFR series of the communication equipment as the target CFR series.

It is understood that the preset stage adjustment step size may be determined according to the communication requirement, the hardware configuration (e.g., computational power) of the communication device, and/or the configuration efficiency of the target CFR stage, which is not specifically limited in this application. In one example, the preset number of stages may be adjusted by a step size of 1 to gradually approach to a minimum CFR number that can meet the communication requirement, so as to avoid setting an excessively large target CFR number, and further reduce the processing delay of the communication device.

In this embodiment, when the currently configured CFR stage does not meet the communication requirement, the communication device may adjust the CFR stage by a preset adjustment step length, perform a new round of test based on the adjusted CFR stage, determine whether the adjusted CFR stage is appropriate based on a test result (i.e., a peak-to-average ratio of a processed signal), and determine a target CFR stage according to the determination result. According to the CFR series detection method and device, whether next up-regulation is carried out or not is judged based on the test result, and the target CFR series is determined, so that the target CFR series can be guaranteed to be the minimum CFR series under the condition that the actual communication requirement can be met, and the target CFR series is prevented from being set too large. Therefore, the integrity of the target communication signal can be ensured in the actual communication process, the communication reliability is improved, the processing time delay of the communication equipment can be reduced, the application scene of the communication equipment is widened, and the applicability is improved.

In one embodiment, step 330 comprises: the peak-to-average ratio of the processed signals is periodically obtained and compared with a peak clipping threshold value. If the peak-to-average ratio of the processed signal is not greater than the peak clipping threshold value, the step of confirming the current CFR series as the target CFR series comprises the following steps: and if the peak-to-average ratio of each processed signal acquired in the preset judging time period is not greater than the peak clipping threshold value, determining the current CFR series as the target CFR series.

Specifically, the communication device may detect a peak-to-average ratio of the signal according to a preset detection period, that is, when the preset detection period comes, detect the peak-to-average ratio of each processed signal, and further, may detect whether each processed signal has a peak leakage phenomenon. If the processed signal has no peak-to-average ratio larger than the peak clipping threshold value and no peak leakage phenomenon in a continuous time period (namely a preset judgment time period), the CFR series configuration at the time is considered to be proper, and the current CFR series can be confirmed as the target CFR series.

It can be understood that the preset detection period and the preset determination period can be determined according to the determination accuracy and/or the carrier information, and the like, which is not limited in the present application. In order to improve the accuracy of the discrimination, the time length of the preset discrimination period may be greater than the time length of the preset detection period. In one embodiment, the preset detection period and the preset discrimination period both support local configuration (e.g., configuration via a Web interface or CLI instruction) and remote configuration (e.g., configuration via a network management system, NMS).

In the embodiment, the signal peak-to-average ratio is detected periodically, and the target CFR stage number is determined according to the detection result in the preset judgment time period, so that the detection comprehensiveness can be improved, the missing detection and the error detection of the peak-to-average ratio are reduced as much as possible, and the communication reliability is further improved.

In one embodiment, as shown in FIG. 4, step 300 further comprises:

step 340, obtaining the total carrier bandwidth of the communication equipment according to the carrier information;

step 350, obtaining the corresponding relation between the total carrier bandwidth and the CFR levels, obtaining the initial CFR levels corresponding to the total carrier bandwidth of the communication device from the corresponding relation, and configuring the CFR of the communication device as the initial CFR levels when configuring for the first time.

The initial CFR series refers to an initial CFR series value in the process of obtaining a target CFR series value, and the communication device may obtain the target CFR series value corresponding to the communication device using the initial CFR series value as a starting point, so as to reduce the peak-to-average ratio of the test signal on the premise of ensuring signal integrity.

Specifically, the corresponding relationship between the total carrier bandwidth and the CFR stage may be obtained through pre-testing and debugging. In one embodiment, the correspondence relationship may be pre-stored in the communication device, so that the communication device determines the initial CFR series through local query, and avoids the influence of the communication quality and the communication speed on the determination of the initial CFR series.

The communication equipment obtains the sum of the carrier bandwidths (namely the total carrier bandwidth) of the equipment according to the carrier information configured by the equipment, takes the sum as a query basis, queries from the corresponding relation to obtain an initial CFR (computational fluid dynamics) stage corresponding to the total carrier bandwidth of the equipment, and configures the CFR stage of the communication equipment into the initial CFR stage for configuration when the communication equipment is configured for the first time. Therefore, the test times of the target CFR series can be reduced, and the determination efficiency of the target CFR series is improved.

It should be noted that the "first configuration" referred to in this embodiment may be understood as the first configuration in each process of determining the target CFR series. For example, when the communication device needs to determine or re-determine the target CFR series for the first time (e.g., the communication device is put into use for the first time, or the application environment of the communication device changes), the first round of configuration of the CFR series.

To facilitate understanding of the steps of configuring the target CFR series in the present application, the following is described by way of a specific example, and as shown in fig. 5, step 300 specifically includes the following steps:

step 402, determining and configuring an initial CFR stage according to the total bandwidth and the number of carriers configured by the communication device. The communication device may be configured with parameters such as carrier information (e.g., frequency point, bandwidth, etc.) and a peak clipping threshold.

Step 404 triggers the generation of a test signal. The communication device may generate a mode signal corresponding to the carrier bandwidth according to the configured carrier information.

And 406, performing CFR processing on the test signal according to the configured target peak clipping threshold and the current CFR stage number to obtain a processed signal, so as to reduce the peak-to-average ratio of the signal on the premise of ensuring the integrity of the signal as much as possible.

And step 408, detecting the peak-to-average ratio of the processed signal and whether the processed signal has a peak leakage phenomenon or not at intervals of T0. Among them, the T0 time supports local configuration and remote configuration.

Step 410, judging whether the peak-to-average ratio of the processed signal is larger than a target peak clipping threshold and/or whether the processed signal has a peak leakage phenomenon, if so, entering step 412, and if not, entering step 414. In general, if a peak leakage phenomenon exists in a processed signal, the peak-to-average ratio of the signal is also larger than a target peak clipping threshold.

Step 412, add 1 to the current CFR stage to obtain an updated CFR stage, and go to step 404. And under the condition that the peak-to-average ratio does not meet the requirement or the peak leakage phenomenon exists, the communication equipment adjusts the current CFR series and performs the test again according to the adjusted initial CFR series.

In step 414, if no peak leakage occurs in the continuous T1 time period and the peak-to-average ratios are less than or equal to the peak clipping threshold, the current CFR series is determined as the target CFR series. And when the peak-to-average ratio is less than or equal to the peak clipping threshold value and the peak leakage phenomenon does not exist, indicating that the currently configured CFR series is proper, and determining the current CFR series as the target CFR series. Among them, the T1 time supports local configuration and remote configuration.

In one embodiment, the communication method further comprises: and alarming based on the comparison result. For example, the communication device may alarm when the peak-to-average ratio of the processed signal is greater than a peak clipping threshold, and further, may alarm when the processed signal has a peak leakage phenomenon. Therefore, operation and maintenance personnel can be reminded in time to improve the configuration efficiency in a manual configuration mode.

In one embodiment, as shown in fig. 6, the communication method further includes:

step 400, determining the remote distance time delay of the communication equipment according to the target CFR series;

step 500, determining the maximum remote distance of the communication device based on the remote distance delay, so that the communication device provides communication service according to the maximum remote distance.

The remote distance delay refers to a maximum transmission delay corresponding to the communication device in the remote process. The maximum pull-out distance may be used to instruct an engineer to install the communication device.

Specifically, the communication device determines, according to the target CFR progression, a maximum transmission delay that can be consumed by the communication device in the process of zooming out, that is, a zooming-out distance delay, when the communication delay is satisfied. When the actual remote distance delay of the communication device is less than the remote distance delay determined in step 400, the communication device may provide communication service support for the terminal, otherwise, the communication device may not provide the communication service. In one embodiment, as shown in FIG. 7, step 400 includes:

step 410, obtaining the maximum advance time of the physical layer, and determining the processing time delay of the communication device according to the target CFR series;

step 420, determining the difference between the maximum advance time and the processing delay as the remote delay.

According to the method and the device, the processing time delay of the communication equipment is subtracted from the maximum advance time which can be processed by the physical layer, and the obtained difference is the maximum transmission time delay of the remote distance, namely the remote distance time delay.

After the remote distance delay of the communication equipment is determined, the communication equipment can determine the maximum remote distance of the communication equipment according to the remote distance delay, so that engineering personnel can lay the communication equipment according to the maximum remote distance, and the laid communication equipment can provide communication service for the mobile terminal.

In one embodiment, step 500 includes: and acquiring the transmission time delay of the remote material per unit distance, and determining the ratio of the remote time delay to the transmission time delay per unit distance as the maximum remote distance. For example, when the remote material is an optical fiber, the propagation delay of a signal in the optical fiber can be calculated as 5 us/km. In the case where the CFR processing delay of the communication device decreases from 12us to 4us, the pull-out distance of the communication device increases by 1.6 km. For the communication system shown in fig. 1, if the CFR processing delay of the entire communication system is shortened from 36us to 12us, the pull-out distance of the communication system increases by 4.8 km. Therefore, the maximum remote distance can be determined according to the transmission delay of the remote material, the accuracy of the maximum remote distance is further improved, and the communication equipment can be arranged by engineering personnel according to the maximum remote distance, so that reliable communication service can be provided by the communication equipment.

In this embodiment, the remote distance time delay of the communication device is determined according to the target CFR series, and the maximum remote distance of the communication device is determined based on the remote distance time delay, so that engineers can conveniently and accurately and quickly determine the remote distance of each communication device, and the laid communication device can provide reliable communication service.

To facilitate understanding of the aspects of the present application, a specific example will be described below. The communication equipment is provided with a configuration module, a baseband intermediate frequency module, a CFR module, a detection module, a judgment module, an adjustment module and a calculation module. As shown in fig. 8, the communication method includes the steps of:

step 602, a configuration module configures carrier information and a peak clipping threshold value;

step 604, the configuration module configures an initial CFR stage number according to the carrier information;

step 606, the configuration module triggers and generates a test instruction according to the carrier information and sends the test instruction to the baseband intermediate frequency module;

step 608, the baseband intermediate frequency module generates a corresponding mode signal according to the carrier information and the test instruction and sends the mode signal to the CFR module;

step 610, the CFR module performs CFR processing on the mode signal according to the peak clipping threshold value and the current CFR stage number to obtain a processed signal;

step 612, the detection module detects the peak value and the peak-to-average ratio of the processed signal and obtains a detection result;

step 614, the judging module judges whether the signal has a peak leakage phenomenon or not and whether the peak-to-average ratio of the signal is less than or equal to a peak clipping threshold value or not according to the detection result, and obtains a judgment result;

step 616, the adjusting module determines whether the current initial CFR stage is appropriate according to the determination result, if not, step 618 is entered, and if so, step 620 is entered;

step 618, the adjusting module adjusts the current CFR stage number and proceeds to step 608;

step 620, the adjusting module sends the current CFR stage number and the adjusting completion instruction to the calculating module;

and 622, calculating an available time delay value of the communication system remote distance by the calculation module according to the adjustment completion instruction and the current CFR series, and calculating the maximum remote distance of the communication system according to the transmission time delay of the remote material. Further, the calculation module can also display the available delay value of the communication system at the remote distance and the maximum remote distance of the communication system so as to instruct engineering personnel to lay the communication system.

It should be understood that although the various steps in the flow charts of fig. 2-8 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2-8 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed in turn or alternately with other steps or at least some of the other steps.

In one embodiment, as shown in fig. 9, there is provided a communication apparatus 700 comprising: a carrier information obtaining module 710 and a target CFR stage configuration module 720, wherein:

a carrier information obtaining module 710, configured to obtain carrier information configured by the communication device;

a target CFR stage configuration module 720, configured to configure a crest factor reduction CFR stage of the communication device as a target CFR stage according to the carrier information, so that the communication device provides a communication service based on the target CFR stage; the target CFR series is the minimum CFR series which enables the peak-to-average ratio of the target communication signal not to be larger than the peak clipping threshold value, and the target communication signal is a signal determined according to the carrier information.

In one embodiment, the target CFR progression configuration module 720 includes a current CFR progression acquisition unit, a test unit, and a first configuration unit. The current CFR stage acquisition unit is used for acquiring the current CFR stage and generating a test signal corresponding to the carrier information. The test unit is used for carrying out crest factor reduction processing on the test signal according to the current CFR series to obtain a processed signal. The first configuration unit is configured to determine a current CFR stage as a target CFR stage and configure the CFR stage of the communication device as the target CFR stage if the peak-to-average ratio of the processed signal is not greater than the peak clipping threshold value.

In one embodiment, the target CFR stage configuration module 720 further includes a CFR stage up-regulation unit and a second configuration unit. The CFR series up-regulation unit is used for up-regulating the current CFR series by a preset regulation step length if the peak-to-average ratio of the processed signal is larger than a peak clipping threshold value, carrying out crest factor reduction processing on the test signal according to the up-regulated current CFR series to obtain a processed signal, and repeating the steps until the peak-to-average ratio of the processed signal is not larger than the peak clipping threshold value. The second configuration unit is used for confirming the current CFR series as the target CFR series and configuring the CFR series of the communication equipment as the target CFR series.

In one embodiment, the target CFR series obtaining unit further includes a period comparing unit. The period comparison unit is used for periodically acquiring the peak-to-average ratio of the processed signals and comparing the peak-to-average ratio of each processed signal with a peak clipping threshold value; . The target CFR series determination unit is further used for determining the current CFR series as the target CFR series if the peak-to-average ratio of each processed signal acquired in the preset judgment time period is not greater than the peak clipping threshold value

In one embodiment, the initial CFR progression obtaining unit includes a carrier total bandwidth obtaining unit and a lookup unit. The carrier total bandwidth acquiring unit is used for acquiring the carrier total bandwidth of the communication equipment according to the carrier information. The searching unit is used for obtaining the corresponding relation between the total carrier bandwidth and the CFR levels, obtaining the initial CFR levels corresponding to the total carrier bandwidth of the communication equipment from the corresponding relation, and configuring the CFR levels of the communication equipment into the initial CFR levels when the CFR levels are configured for the first time.

In one embodiment, the communication device 700 further comprises an alarm module for alarming based on the comparison.

In one embodiment, the communications apparatus 700 further includes a zoom-out delay determination module and a maximum zoom-out determination module. And the remote distance time delay determining module is used for determining the remote distance time delay of the communication equipment according to the target CFR series. The maximum remote distance determining module is used for determining the maximum remote distance of the communication equipment based on the remote distance time delay so that the communication equipment provides communication service according to the maximum remote distance.

In one embodiment, the remote delay determination module includes a processing delay determination unit and a remote delay determination unit. The processing delay determining unit is used for acquiring the maximum advance time of the physical layer and determining the processing delay of the communication equipment according to the target CFR series. The remote delay determining unit is configured to determine a difference between the maximum advance time and the processing delay as a remote delay.

In one embodiment, the maximum remote distance determining module is further configured to obtain a transmission delay per unit distance of the remote material, and determine a ratio of the remote distance delay to the transmission delay per unit distance as the maximum remote distance.

For the specific limitations of the communication device, reference may be made to the above limitations of the communication method, which are not described herein again. The respective modules in the above-described communication apparatus may be implemented in whole or in part by software, hardware, and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as shown in fig. 10. The computer device includes a processor, a memory, and a network interface connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The database of the computer equipment is used for storing data such as carrier information, corresponding relation between total carrier bandwidth and CFR levels and the like. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a communication method.

Those skilled in the art will appreciate that the architecture shown in fig. 10 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.

In one embodiment, a communication device is provided that may be a base station, a digital DAS, or a repeater. In particular, the communication device comprises a memory in which a computer program is stored and a processor which, when executing the computer program, realizes the steps of:

acquiring carrier information configured by communication equipment;

configuring a crest factor reduction CFR level of the communication equipment into a target CFR level according to the carrier information so that the communication equipment provides communication service based on the target CFR level; the target CFR series is the minimum CFR series which enables the peak-to-average ratio of the target communication signal not to be larger than the peak clipping threshold value, and the target communication signal is a signal determined according to the carrier information.

In one embodiment, the processor, when executing the computer program, further performs the steps of: acquiring the current CFR stage number and generating a test signal corresponding to the carrier information; according to the current CFR series, performing crest factor reduction processing on the test signal to obtain a processed signal; and if the peak-to-average ratio of the processed signal is not greater than the peak clipping threshold value, determining the current CFR series as the target CFR series, and configuring the CFR series of the communication equipment as the target CFR series.

In one embodiment, the processor, when executing the computer program, further performs the steps of: if the peak-to-average ratio of the processed signal is larger than the peak clipping threshold value, the current CFR series is adjusted up to preset adjustment step length, peak factor clipping processing is carried out on the test signal according to the adjusted current CFR series to obtain the processed signal, and the steps are repeated until the peak-to-average ratio of the processed signal is not larger than the peak clipping threshold value; and confirming the current CFR series as a target CFR series, and configuring the CFR series of the communication equipment as the target CFR series.

In one embodiment, the processor, when executing the computer program, further performs the steps of: periodically acquiring the peak-to-average ratio of the processed signals, and comparing the peak-to-average ratio of each processed signal with a peak clipping threshold value; and if the peak-to-average ratio of each processed signal acquired in the preset judging time period is not greater than the peak clipping threshold value, determining the current CFR series as the target CFR series.

In one embodiment, the processor, when executing the computer program, further performs the steps of: obtaining the total carrier bandwidth of the communication equipment according to the carrier information; and acquiring a corresponding relation between the total carrier bandwidth and the CFR series, acquiring an initial CFR series corresponding to the total carrier bandwidth of the communication equipment from the corresponding relation, and configuring the CFR series of the communication equipment into the initial CFR series when the CFR series is configured for the first time.

In one embodiment, the processor, when executing the computer program, further performs the steps of: and alarming based on the comparison result.

In one embodiment, the processor, when executing the computer program, further performs the steps of: determining the remote distance time delay of the communication equipment according to the target CFR series; and determining the maximum remote distance of the communication equipment based on the remote distance time delay so that the communication equipment provides communication service according to the maximum remote distance.

In one embodiment, the processor, when executing the computer program, further performs the steps of: acquiring the maximum advance time of a physical layer, and determining the processing time delay of the communication equipment according to the target CFR series; and confirming the difference between the maximum advance time and the processing time delay as the remote time delay.

In one embodiment, the processor, when executing the computer program, further performs the steps of: and acquiring the transmission time delay of the remote material per unit distance, and determining the ratio of the remote time delay to the transmission time delay per unit distance as the maximum remote distance.

In one embodiment, a communication system is provided, the communication system comprising one or more of the communication devices of any of the above embodiments.

In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:

acquiring carrier information configured by communication equipment;

In one embodiment, the computer program when executed by the processor further performs the steps of: acquiring the current CFR stage number and generating a test signal corresponding to the carrier information; according to the current CFR series, performing crest factor reduction processing on the test signal to obtain a processed signal; and if the peak-to-average ratio of the processed signal is not greater than the peak clipping threshold value, determining the current CFR series as the target CFR series, and configuring the CFR series of the communication equipment as the target CFR series.

In one embodiment, the computer program when executed by the processor further performs the steps of: if the peak-to-average ratio of the processed signal is larger than the peak clipping threshold value, the current CFR series is adjusted up to preset adjustment step length, peak factor clipping processing is carried out on the test signal according to the adjusted current CFR series to obtain the processed signal, and the steps are repeated until the peak-to-average ratio of the processed signal is not larger than the peak clipping threshold value; and confirming the current CFR series as a target CFR series, and configuring the CFR series of the communication equipment as the target CFR series.

In one embodiment, the computer program when executed by the processor further performs the steps of: periodically acquiring the peak-to-average ratio of the processed signals, and comparing the peak-to-average ratio of each processed signal with a peak clipping threshold value; and if the peak-to-average ratio of each processed signal acquired in the preset judging time period is not greater than the peak clipping threshold value, determining the current CFR series as the target CFR series.

In one embodiment, the computer program when executed by the processor further performs the steps of: obtaining the total carrier bandwidth of the communication equipment according to the carrier information; and acquiring a corresponding relation between the total carrier bandwidth and the CFR series, acquiring an initial CFR series corresponding to the total carrier bandwidth of the communication equipment from the corresponding relation, and configuring the CFR series of the communication equipment into the initial CFR series when the CFR series is configured for the first time.

In one embodiment, the computer program when executed by the processor further performs the steps of: and alarming based on the comparison result.

In one embodiment, the computer program when executed by the processor further performs the steps of: determining the remote distance time delay of the communication equipment according to the target CFR series; and determining the maximum remote distance of the communication equipment based on the remote distance time delay so that the communication equipment provides communication service according to the maximum remote distance.

In one embodiment, the computer program when executed by the processor further performs the steps of: acquiring the maximum advance time of a physical layer, and determining the processing time delay of the communication equipment according to the target CFR series; and confirming the difference between the maximum advance time and the processing time delay as the remote distance time delay.

In one embodiment, the computer program when executed by the processor further performs the steps of: and acquiring the transmission time delay of the remote material per unit distance, and determining the ratio of the remote time delay to the transmission time delay per unit distance as the maximum remote distance.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A method of communication, the method comprising:

acquiring carrier information configured by communication equipment;

configuring a Crest Factor Reduction (CFR) level of the communication equipment into a target CFR level according to the carrier information, so that the communication equipment provides communication service based on the target CFR level; the target CFR series is the minimum CFR series which enables the peak-to-average ratio of a target communication signal not to be larger than a peak clipping threshold value, and the target communication signal is a signal determined according to the carrier information.

2. The communication method according to claim 1, wherein the step of configuring the CFR progression of the communication device as a target CFR progression according to the carrier information comprises:

3. The communication method according to claim 2, wherein the step of configuring the CFR progression of the communication device as a target CFR progression according to the carrier information further comprises:

if the peak-to-average power ratio of the processed signal is larger than the peak clipping threshold value, the current CFR series is adjusted up to a preset adjustment step length, peak factor clipping processing is carried out on the test signal according to the adjusted current CFR series to obtain the processed signal, and the steps are repeated until the peak-to-average power ratio of the processed signal is not larger than the peak clipping threshold value;

and confirming the current CFR series as the target CFR series, and configuring the CFR series of the communication equipment as the target CFR series.

4. The communication method according to claim 2, further comprising:

periodically acquiring the peak-to-average ratio of the processed signals, and comparing the peak-to-average ratio of each processed signal with the peak clipping threshold value;

if the peak-to-average ratio of the processed signal is not greater than the peak clipping threshold value, the step of determining the current CFR series as the target CFR series includes:

and if the peak-to-average ratio of each processed signal acquired in the preset judgment time period is not greater than the peak clipping threshold value, determining the current CFR series as the target CFR series.

5. The communication method according to claim 2, wherein the step of configuring the CFR progression of the communication device as a target CFR progression according to the carrier information further comprises:

acquiring a corresponding relation between the total carrier bandwidth and the CFR levels, acquiring an initial CFR level corresponding to the total carrier bandwidth of the communication equipment from the corresponding relation, and configuring the CFR level of the communication equipment as the initial CFR level when the CFR level is configured for the first time.

6. The communication method according to any one of claims 2 to 5, characterized in that the method further comprises:

and alarming based on the comparison result.

7. The communication method according to any one of claims 1 to 5, characterized in that the method further comprises:

8. The communication method according to claim 7, wherein the step of determining the remote delay of the communication device according to the target CFR progression comprises:

and confirming the difference between the maximum advance time and the processing time delay as the remote distance time delay.

9. The communication method according to claim 7, wherein the step of determining the maximum remote distance of the communication device based on the remote distance delay comprises:

10. A communications apparatus, the apparatus comprising:

a target CFR order configuration module, configured to configure a crest factor reduction CFR order of the communication device as a target CFR order according to the carrier information, so that the communication device provides a communication service based on the target CFR order; the target CFR series is the minimum CFR series which enables the peak-to-average ratio of a target communication signal not to be larger than a peak clipping threshold value, and the target communication signal is a signal determined according to the carrier information.

11. A communication device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor realizes the steps of the method of any of claims 1 to 9 when executing the computer program.

12. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 9.