CN111817799B - Anti-interference method and device - Google Patents
Anti-interference method and device Download PDFInfo
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- CN111817799B CN111817799B CN201910295631.3A CN201910295631A CN111817799B CN 111817799 B CN111817799 B CN 111817799B CN 201910295631 A CN201910295631 A CN 201910295631A CN 111817799 B CN111817799 B CN 111817799B
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- H—ELECTRICITY
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- H04B17/30—Monitoring; Testing of propagation channels
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
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- H04L1/0071—Use of interleaving
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Abstract
The application discloses an anti-interference method and equipment. In the application, a channel performance parameter is obtained, and the channel performance parameter is used for representing the channel performance; selecting a matched anti-interference scheme from at least one pre-configured anti-interference scheme set according to the channel performance parameters and the service performance target indexes; and performing anti-interference processing according to the matched anti-interference scheme. In the at least one anti-interference scheme set, different anti-interference scheme sets correspond to different anti-interference technology types, and different anti-interference schemes in one anti-interference scheme set correspond to different anti-interference configuration parameters.
Description
Technical Field
The present application relates to the field of wireless communications technologies, and in particular, to an anti-interference method and apparatus.
Background
In the field of wireless communication networks, the anti-interference capability is an important requirement for network operation, and the anti-interference capability is important for timely processing the interference problem in the network operation, the stability of the network operation and the improvement of the network data transmission performance.
Taking a wireless self-organizing network as an example, a retransmission technical scheme and an interleaving coding technical scheme are important anti-interference technical schemes, and the two technical schemes have application ranges respectively.
Disclosure of Invention
The embodiment of the application provides an anti-interference method and equipment.
In a first aspect, an anti-interference method is provided, including: acquiring channel performance parameters, wherein the channel performance parameters are used for representing the channel performance; selecting a matched anti-interference scheme from at least one pre-configured anti-interference scheme set according to the channel performance parameters and the service performance target indexes; and performing anti-interference processing according to the matched anti-interference scheme. In the at least one anti-interference scheme set, different anti-interference scheme sets correspond to different anti-interference technology types, and different anti-interference schemes in one anti-interference scheme set correspond to different anti-interference configuration parameters.
In a possible implementation manner, an anti-interference scheme corresponds to a channel condition set of at least one channel environment type and a performance evaluation index set corresponding to conditions in the condition set; the performance evaluation index corresponding to one anti-interference scheme is used for representing the performance which can be achieved by the anti-interference scheme.
In a possible implementation manner, the selecting a matching anti-interference scheme from at least one pre-configured anti-interference scheme set according to the channel performance parameter and the service performance target index includes:
determining a corresponding first channel condition according to the acquired channel performance parameters;
determining a matching factor corresponding to the anti-interference scheme contained in the at least one anti-interference scheme set under the first channel condition according to the first channel condition and a service performance target index; the matching factor corresponding to one anti-interference scheme under the first channel condition is used for representing the matching degree between the performance evaluation index and the service performance target index of the anti-interference scheme under the first channel condition;
and selecting an anti-interference scheme from the at least one anti-interference scheme according to the matching factor corresponding to the at least one anti-interference scheme.
Optionally, the following formula is adopted, and according to the first channel condition and the service performance target index, a matching factor corresponding to the anti-interference scheme included in the at least one anti-interference scheme set under the first channel condition is determined:
therein, DismsA matching factor corresponding to the s anti-interference scheme in the m anti-interference scheme set, AjFor the weighting factor, Perform, corresponding to the j-th performance evaluation indexmsc′_jPerformReq as a j performance evaluation indexjAnd the performance target index corresponding to the j performance evaluation index.
Optionally, the selecting, according to the matching factor corresponding to the at least one anti-interference scheme, an anti-interference scheme from the at least one anti-interference scheme includes: and selecting the anti-interference scheme corresponding to the minimum matching factor from the at least one anti-interference scheme according to the minimum matching factor in the matching factors corresponding to the at least one anti-interference scheme.
In a second aspect, an apparatus for interference rejection is provided, comprising:
an obtaining module, configured to obtain a channel performance parameter, where the channel performance parameter is used to characterize channel performance;
the anti-interference scheme selection module is used for selecting a matched anti-interference scheme from at least one pre-configured anti-interference scheme set according to the channel performance parameter and the service performance target index, wherein in the at least one anti-interference scheme set, different anti-interference scheme sets correspond to different anti-interference technology types, and different anti-interference schemes in one anti-interference scheme set correspond to different anti-interference configuration parameters;
and the anti-interference processing module is used for carrying out anti-interference processing according to the matched anti-interference scheme.
In a third aspect, a communication device is provided, comprising: a processor, memory, transceiver; the processor is configured to read the computer instructions in the memory and execute the method according to any one of the first aspect.
In a fourth aspect, there is provided a computer-readable storage medium having stored thereon computer-executable instructions for causing the computer to perform the method of any of the first aspects above.
In the above embodiment of the present application, at least one anti-interference scheme set is preconfigured, in the at least one anti-interference scheme set, different anti-interference scheme sets correspond to different anti-interference technology types, and different anti-interference schemes in one anti-interference scheme set correspond to different anti-interference configuration parameters. When the anti-interference is needed, according to the acquired channel performance parameters and the service performance target indexes, selecting a matched anti-interference scheme from at least one pre-configured anti-interference scheme set, and performing anti-interference processing according to the matched anti-interference scheme. Therefore, the matched anti-interference technology can be selected according to the channel performance parameters and the service performance target indexes, and the matched anti-interference configuration parameters are adopted, so that on one hand, anti-interference can be realized, and the service performance can be ensured.
Drawings
Fig. 1 is a schematic diagram of a block error rate when a retransmission technique is adopted and the transmission frequency is 2;
fig. 2 is a schematic diagram of the block error rate when the retransmission technique is adopted and the transmission times is 3;
fig. 3 is a schematic view of an anti-interference process provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of an anti-interference device according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application.
Detailed Description
Although there are many anti-jamming techniques, a fixed anti-jamming technique is generally employed. Taking a wireless ad hoc network as an example, a retransmission technology and an interleaving coding technology are important technologies against interference.
Under a certain scene, the block error rate can be reduced and the data transmission performance can be improved by adopting the active retransmission technology, but the rate reduction ratio is higher. For example, when the signal-to-noise ratio is distributed between-4 and 2dB and the interference rise value is greater than 15dB, if the transmission is performed twice, the block error rate distribution range is 9% to 14%, and the rate reduction ratio is 52% to 55%, as shown in fig. 1; if the transmission is carried out three times, the distribution range of the block error rate is between 2.8% and 5.5%, and the rate reduction proportion is further improved to between 65% and 67%, as shown in fig. 2.
A reduced rate reduction ratio, but a higher delay, can be achieved with the interleaving coding technique. Taking 720 symbols as an example of the interleaving depth and 52 symbols as an example of the interleaving width, the rate reduction ratio is reduced compared with the retransmission technology, but the time delay corresponding to interleaving and deinterleaving is increased to about 150 milliseconds.
When a fixed anti-interference technology is adopted, the performance indexes which can be achieved under different anti-interference parameter configurations are different. In addition, the performance index requirements for different traffic types are also different. The fixed anti-interference technology and anti-interference parameter configuration are applied, and the performance index requirements of different service types cannot be met in a self-adaptive mode.
That is, the fixed anti-interference technology cannot adapt to the changing channel conditions, so that the effectiveness of anti-interference is limited, and meanwhile, the optimal anti-interference technology cannot be adopted for various services for anti-interference.
In order to solve the above problem, embodiments of the present application provide an anti-interference method and related devices. In the embodiment of the application, the communication equipment can select a matched anti-interference scheme from a plurality of pre-configured anti-interference schemes based on the current channel condition and the service performance index requirement, and perform anti-interference according to the selected anti-interference scheme. The embodiment of the application can flexibly and effectively adopt the anti-interference technology and the anti-interference parameters which correspond to the most matched data according to specific channel conditions and data transmission requirements so as to adapt to different channel conditions and performance index requirements of different services, thereby improving anti-interference effectiveness, further improving data transmission performance, timely processing interference problems in a network and improving network operation and maintenance efficiency.
The embodiments of the present application will be described in detail below with reference to the accompanying drawings.
In the embodiment of the application, at least one anti-interference scheme set can be configured in advance. For example, the first set of anti-interference schemes and the second set of anti-interference schemes may be preconfigured. Each interference rejection scheme set comprises at least one interference rejection scheme.
In the at least one anti-interference scheme set, different anti-interference scheme sets correspond to different anti-interference technology types, that is, the anti-interference schemes in the different anti-interference scheme sets belong to different anti-interference technology types. For example, taking a first set of anti-interference schemes and a second set of anti-interference schemes that are configured in advance as an example, the anti-interference schemes included in the first set of anti-interference schemes are all retransmission technical schemes, and the anti-interference schemes included in the second set of anti-interference schemes are all interleaving coding technical schemes. That is, the anti-interference schemes in the first set of anti-interference schemes belong to the anti-interference schemes of the retransmission technology type, and the anti-interference schemes in the second set of anti-interference schemes belong to the anti-interference schemes of the interleaving coding technology type.
One set of interference rejection schemes includes at least one interference rejection scheme, with different interference rejection schemes using different interference rejection configuration parameters. Taking the first set of anti-interference schemes as an example, the first set of anti-interference schemes includes a first anti-interference scheme and a second anti-interference scheme, where the number of transmissions used by the first anti-interference scheme is 2, and the number of transmissions used by the second anti-interference scheme is 3.
Optionally, one interference rejection scheme corresponds to a set of channel conditions of at least one channel environment type and a set of performance evaluation indicators corresponding to channel conditions in the set of channel conditions. Wherein each channel condition corresponds to a set of performance evaluation indicators. The performance evaluation index is used for representing the performance which can be achieved by the corresponding anti-interference scheme.
Wherein the channel condition may be characterized by a channel performance parameter, such as the channel condition may be characterized using a signal-to-noise ratio.
Wherein the channel environment types include, but are not limited to: the embodiment of the present application does not limit the wide rural areas and the concentrated urban population areas.
The following describes in detail the interference avoidance scheme set configured in the embodiment of the present application by using a specific example.
Firstly, the alternative anti-interference technical schemes of the wireless communication network and anti-interference configuration parameters used by each alternative technical scheme can be determined, and at least one anti-interference scheme set is formed.
For example, there are M types of interference rejection techniques (M is an integer greater than or equal to 1), and M sets of interference rejection schemes may be configured for the M types of interference rejection techniques:
{Measure1，Measure2，……，MeasureM}
wherein Measure1Representing the set of anti-interference schemes, Measure, corresponding to the first anti-interference technique2Representing the anti-interference scheme set corresponding to the second anti-interference technology, and so on, MeasureMAnd representing the anti-interference scheme set corresponding to the Mth anti-interference technology.
In each anti-interference scheme set, different anti-interference schemes can be configured with different anti-interference parameters. In the m-th seed (1)<＝m<M) set of anti-interference schemes MeasuremFor example, the interference rejection schemes in the set of interference rejection schemes share SmParameter configuration, and accordingly, S is included in the set of interference rejection schemesmThe anti-interference scheme, different anti-interference schemes correspond to different anti-interference configuration parameters, and the anti-interference schemes are as follows:
{SubMeasurem1，SubMeasurem2，……，SubMeasuremSm}
wherein, SubMeasurem1Representing a first immunity scheme, the immunity scheme configured using first parameters; SubMeasurem2Representing a second anti-interference scheme, the anti-interference scheme configured using a second parameter; by analogy, SubMeasurem1Denotes the S thmAnti-jamming scheme using the SthmAnd (4) configuring parameters.
As can be seen from the above description, the interference avoidance schemes in the M sets of interference avoidance schemes can be expressed as:
taking the alternative technical schemes of the wireless self-organizing network for anti-interference, including the retransmission technical scheme and the interleaving coding technical scheme as examples, the following two anti-interference scheme sets (measures) can be configured1，Measure2) Wherein Measure1Measure for a set of retransmission solutions2For a set of interleaved coding schemes:
Measure1scheme of retransmission]；
Measure2Scheme of interleaving coding]。
Wherein, the retransmission technical scheme is integrated with Measure1Includes 2 anti-interference schemes (SubMeasure)11，SubMeasure12) Wherein, the anti-interference scheme is SubMeasure11Retransmission technique in (1)Retransmission times adopted by the technical scheme are equal to 2, and an anti-interference scheme is SubMeasure12The retransmission times adopted by the retransmission technical scheme in (1) is equal to 3:
SubMeasure11transmission times 2 in retransmission scheme]；
SubMeasure12Transmission times is 3 in the retransmission scheme]。
Interleaving coding technical scheme set Measure2Includes 1 anti-interference scheme sub measure21The interleaving depth adopted by the interleaving coding technical scheme is equal to 720:
SubMeasure21the interleaving depth is 720 for the interleaving coding scheme]。
And aiming at the configured anti-interference scheme set, at least one channel environment type and a channel condition set needing to be evaluated can be configured.
The channel condition may be characterized by a channel performance parameter, where the channel performance parameter may include at least one of a signal-to-noise ratio, a received power, a received interference power, and the like, and this is not limited in this embodiment of the present application.
For example, there are C types (C is an integer greater than or equal to 1) of channel conditions to be evaluated, which are:
{Channel1，Channel2，……，ChannelC}
taking a wireless ad hoc network as an example, the channel environment type is rural and wide, the channel condition to be evaluated is characterized by the signal-to-noise ratio, and the value of C is 7 (i.e. there are 7 signal-to-noise ratios to be evaluated), as shown in table 1:
TABLE 1
| Signal to noise ratio [ dB ]] | Value taking |
| Signal to noise ratio1 | -15.85 |
| Signal to noise ratio2 | -12.85 |
| Signal to noise ratio3 | -9.85 |
| Signal to noise ratio4 | -6.85 |
| Signal to noise ratio5 | -3.85 |
| Signal to noise ratio6 | -0.85 |
| Signal to noise ratio7 | 2.15 |
And the performance evaluation indexes under different anti-interference parameter configurations can be configured according to the specific channel environment type. The performance evaluation index is used for representing the performance which can be achieved by the corresponding anti-interference scheme.
Specifically, corresponding performance evaluation indexes can be configured for the anti-interference schemes under various channel conditions and under specific anti-interference parameter configurations under the channel conditions. The method for determining the performance evaluation index is not limited in the embodiment of the application, and for example, for a certain anti-interference scheme, the performance that can be achieved by the anti-interference scheme can be determined in a simulation or calculation analysis manner.
For example, if the performance evaluation indexes corresponding to a certain anti-interference scheme are P types (P is an integer greater than or equal to 1), under the channel condition c and the anti-interference parameter configuration s of the mth anti-interference scheme, the values of the corresponding performance evaluation indexes are as follows:
{Performmsc_1，Performmsc_2，……，Performmsc_P}
taking two performance indexes of the mth anti-interference scheme under the anti-interference parameter configuration s scheme as an example, as shown in table 2:
TABLE 2
Taking a wireless self-organizing network as an example, the channel environment type is wide in the country, the channel condition to be evaluated is characterized by using the signal-to-noise ratio, a retransmission technical scheme is adopted, the transmission time is 2, and the signal-to-noise ratio is' the signal-to-noise ratio4"the performance evaluation indexes are respectively: the block error rate index, the time delay index and the rate reduction ratio index take the values of 8 percent of block error rate, 5 milliseconds of time delay and 52 percent of rate reduction ratio.
Referring to fig. 3, a schematic flowchart of an anti-interference method provided in the embodiment of the present application is shown, where the flowchart may be executed by a communication device.
The communication device may be a terminal. The "terminal," also called User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), etc., is a device that provides voice and/or data connectivity to a user, for example, a handheld device with a wireless connection function, a vehicle-mounted device, etc. Currently, some examples of terminals are: a mobile phone (mobile phone), a tablet computer, a notebook computer, a palm top computer, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (smart security), a wireless terminal in city (smart city), a wireless terminal in home (smart home), and the like.
As shown in fig. 3, the process may include:
s301: and acquiring channel performance parameters, wherein the channel performance parameters are used for representing the channel performance.
In this step, for a signal that needs to be subjected to interference processing, a performance parameter of a channel carrying the signal may be obtained. The performance parameter may include a block error rate, and the like, which is not limited in this embodiment of the present application.
The performance parameters of the current channel (i.e., the channel that needs to be subjected to interference processing) may be obtained according to the channel conditions in the channel condition set configured for the anti-interference scheme set. For example, if the channel conditions in the set of channel conditions configured for the set of interference rejection schemes are characterized by a signal-to-noise ratio, in S301, the communication device may obtain the signal-to-noise ratio of the current channel.
In the embodiment of the present application, a specific implementation manner of obtaining the channel performance parameter is not limited, for example, the communication device may determine the channel performance parameter through channel detection, and may also receive the channel performance parameter sent by the communication peer. Taking the wireless ad hoc network as an example, if the channel environment type is a rural area, the channel performance parameters to be acquired include the signal-to-noise ratio.
S302: and selecting a matched anti-interference scheme from at least one pre-configured anti-interference scheme set according to the channel performance parameters and the service performance target indexes.
The service performance target index is used for representing the performance requirement which needs to be met by the service data to be transmitted.
For the description of the interference rejection scheme set, reference may be made to the foregoing embodiments, and the description is not repeated here.
Optionally, in this step, the communication device may first determine a corresponding first channel condition according to the obtained channel performance parameter.
Specifically, the communication device may determine, according to the obtained channel performance parameter, a first channel condition matched with the parameter. The first channel condition is an interference-free partyOne of a set of channel conditions configured by the set. Taking the case that the set of channel conditions configured for the set of anti-interference schemes is as shown in table 1 as an example, if the snr of the current channel acquired by the communication device is-6.85, the snr is obtained by the communication device as the value of the snr is equal to the snr in table 14If the values of the first channel are the same, the first channel condition is determined to be' signal-to-noise ratio4"; if the snr of the current channel acquired by the communications device is-6.86, although the snr is different from any snr in table 1, the snr is different from the snr in table 14"is closest, then the first channel condition is determined to be" signal to noise ratio4”。
Then, according to the first channel condition and the service performance target index, determining a matching factor corresponding to the anti-interference scheme included in the at least one anti-interference scheme set under the first channel condition. And the matching factor corresponding to one anti-interference scheme under the first channel condition is used for representing the matching degree between the performance evaluation index and the service performance target index of the anti-interference scheme under the first channel condition.
Specifically, the following formula may be adopted to determine a matching factor corresponding to the anti-interference scheme included in the at least one set of anti-interference schemes under the first channel condition:
therein, DismsA matching factor corresponding to the s anti-interference scheme in the m anti-interference scheme set, AjFor the weighting factor, Perform, corresponding to the j-th performance evaluation indexmsc′_jPerformReq as a j performance evaluation indexjAnd the performance target index corresponding to the j performance evaluation index.
S303: and performing anti-interference processing according to the matched anti-interference scheme.
For example, according to the process shown in fig. 3, a performance target index of the current service, that is, a performance requirement that the current service data needs to meet, may be determined first. For example, the performance target indexes that the current service data transmission needs to meet are respectively:
{PerformReq1，PerformReq2，……，PerformReqP}
taking the wireless ad hoc network as an example, the performance indexes are respectively: the block error rate index, the time delay index and the rate reduction ratio index are three indexes, and the performance index required to be met by a certain service type is that the block error rate is not higher than 10%, the time delay is not more than 5 milliseconds, and the rate reduction ratio is not more than 60%.
Aiming at each anti-interference scheme, under different parameter configuration schemes, the Channel with the current Channel conditionc′And respectively calculating matching factors according to the performance evaluation index and the performance target index of the current data transmission.
Therefore, for each anti-interference scheme, under different parameter configuration schemes, the calculated matching factors are respectively as follows:
obtaining the minimum value in the matching factor set:
MinDis is the minimum value in the matching factor set, Dism′s′And for the matching factor element corresponding to the minimum value, subscripts of the element respectively identify that the type of the current anti-interference scheme is the m 'th class, and the parameter is configured as a parameter configuration scheme s' of the anti-interference scheme. Thus, the anti-interference scheme and the parameter configuration scheme adopted under the current data transmission and channel conditions are determined.
In the above embodiment of the present application, at least one anti-interference scheme set is preconfigured, in the at least one anti-interference scheme set, different anti-interference scheme sets correspond to different anti-interference technology types, and different anti-interference schemes in one anti-interference scheme set correspond to different anti-interference configuration parameters. When the anti-interference is needed, according to the acquired channel performance parameters and the service performance target indexes, selecting a matched anti-interference scheme from at least one pre-configured anti-interference scheme set, and performing anti-interference processing according to the matched anti-interference scheme. Therefore, the matched anti-interference technology can be selected according to the channel performance parameters and the service performance target indexes, and the matched anti-interference configuration parameters are adopted, so that on one hand, anti-interference can be realized, and the service performance can be ensured.
By adopting the embodiment of the application, the optimal anti-interference scheme and the optimal parameter configuration scheme which correspond to the most matching can be flexibly and effectively adopted according to the specific channel condition and the data transmission requirement, the requirements of different channel conditions and performance indexes of various services are met, the effectiveness of the anti-interference scheme is improved, the data transmission performance is further improved, the interference problem in the network is timely processed, and the network operation and maintenance efficiency is improved.
In order to more clearly understand the above embodiments of the present application, several specific examples are described below.
Example 1
In this example, an interference rejection scheme set is preconfigured, and the interference rejection scheme set includes a retransmission technology scheme set Measure1And interleaving coding technical scheme set Measure2：
Measure1Scheme of retransmission]，Measure2Scheme of interleaving coding]。
Retransmission technical scheme set Measure1Including 2 anti-interference schemes (SubMeasure)11，SubMeasure12)：
SubMeasure11Transmission times 2 in retransmission scheme]；
SubMeasure12Transmission times is 3 in the retransmission scheme]。
Interleaving coding technical scheme set Measure2The method comprises 1 anti-interference scheme:
SubMeasure21the interleaving depth is 720 for the interleaving coding scheme]。
The channel environment is of a wide country, the channel condition to be evaluated is characterized by the signal-to-noise ratio, the number of the channel conditions (i.e., the signal-to-noise ratio) is 7, and the 7 channel conditions characterized by the signal-to-noise ratio can be shown in table 3:
TABLE 3
The performance evaluation indexes included in the performance evaluation index set are respectively: the block error rate index, the time delay index and the rate reduction ratio index.
Each anti-interference scheme corresponds to a channel condition set (for example, 7 snr's in table 3), and for each channel condition in the channel condition set corresponding to each anti-interference scheme, corresponds to a performance evaluation index set (for example, a performance evaluation index set formed by a block error rate index, a delay index, and a rate reduction ratio index).
In this example, the anti-interference scheme is SubMeasure in the case that the channel environment type is wide in the country11(i.e. retransmission scheme set with retransmission times of 2) corresponding to the set of channel conditions4The corresponding performance evaluation indexes are respectively as follows: the block error rate is 8%, the delay is 5 milliseconds, and the rate reduction ratio is 52%.
According to the above-mentioned flow shown in fig. 3, in S301, the terminal determines that the current snr corresponds to the snr { snr }1… …, signal-to-noise ratio20Signal to noise ratio in }4. The performance target index (i.e. the performance requirement to be met) corresponding to the service type is that the block error rate is 10%, the time delay is 5 milliseconds, and the rate reduction ratio is not more than 60%.
In S302, for each interference rejection scheme included in the preconfigured set of interference rejection schemes, under different parameter configuration schemes, the snr is4Performance ofAnd respectively calculating matching factors by the evaluation index and the performance target index of the current data transmission.
Various anti-interference schemes, under different parameter configuration schemes, signal-to-noise ratio4The following performance evaluation indices may be shown in table 4:
TABLE 4
The performance target indicators for the current data transmission are shown in table 5:
TABLE 5
| Service performance requirements | Block error rate | Time delay | Rate |
| Business | |||
| 10％ | 5 milliseconds | 60％ |
The match factor calculation can be shown in table 6:
TABLE 6
| Signal to noise ratio4 | Matching factor |
| [ retransmission scheme, transmission frequency is 2%] | 0.82 |
| [ retransmission scheme, transmission frequency is 3%] | 0.99 |
| [ interleaving encoding scheme, interleaving depth is 720 ═] | 15.18 |
Obtaining the minimum value of 0.82 in the matching factor set, thereby determining that the anti-interference scheme and the parameter configuration scheme adopted under the current data transmission and channel conditions are SubMeasure11[ retransmission scheme, transmission frequency is 2%]。
Example 2
In this example, an interference rejection scheme set is preconfigured, and the interference rejection scheme set includes a retransmission technology scheme set Measure1And interleaving coding technical scheme set Measure2：
Measure1Scheme of retransmission]，Measure2Scheme of interleaving coding]。
Retransmission technical scheme set Measure1Including 2 anti-interference schemes (SubMeasure)11，SubMeasure12)：
SubMeasure11Transmission times 2 in retransmission scheme]；
SubMeasure12Transmission times is 3 in the retransmission scheme]。
Interleaving coding technical scheme set Measure2The method comprises 1 anti-interference scheme:
SubMeasure21the interleaving depth is 720 for the interleaving coding scheme]。
The channel environment is of a wide country, the channel condition to be evaluated is characterized by the signal-to-noise ratio, the number of the channel conditions (i.e., the signal-to-noise ratio) is 7, and the 7 channel conditions characterized by the signal-to-noise ratio can be shown in table 7:
TABLE 7
| Signal to noise ratio [ dB ]] | Value taking |
| Signal to noise ratio1 | -15.85 |
| Signal to noise ratio2 | -12.85 |
| Signal to noise ratio3 | -9.85 |
| Signal to noise ratio4 | -6.85 |
| Signal to noise ratio5 | -3.85 |
| Signal to noise ratio6 | -0.85 |
| Signal to noise ratio7 | 2.15 |
The performance evaluation indexes included in the performance evaluation index set are respectively: the block error rate index, the time delay index and the rate reduction ratio index.
Each anti-interference scheme corresponds to a channel condition set (for example, 7 snr's in table 3), and for each channel condition in the channel condition set corresponding to each anti-interference scheme, corresponds to a performance evaluation index set (for example, a performance evaluation index set formed by a block error rate index, a delay index, and a rate reduction ratio index).
In this example, the anti-interference scheme is SubMeasure in the case that the channel environment type is wide in the country11(i.e. retransmission scheme set with retransmission times of 2) corresponding to the set of channel conditions4The corresponding performance evaluation indexes are respectively as follows: the block error rate is 8%, the delay is 5 milliseconds, and the rate reduction ratio is 52%.
According to the above-mentioned flow shown in fig. 3, in S301, the terminal determines that the current snr corresponds to the snr { snr }1… …, signal-to-noise ratio20Signal to noise ratio in }4. The performance target index (i.e. the performance requirement to be met) corresponding to the service type is that the block error rate is 10%, the time delay is 5 milliseconds, and the rate reduction ratio is not more than 60%.
In S302, for each interference rejection scheme included in the preconfigured set of interference rejection schemes, under different parameter configuration schemes, the snr is4And respectively calculating matching factors according to the performance evaluation index and the performance target index of the current data transmission.
Various anti-interference schemes, under different parameter configuration schemes, signal-to-noise ratio4The following performance evaluation indices may be shown in table 8:
TABLE 8
The performance target indicators for the current data transmission are shown in table 9:
TABLE 9
| Service performance requirements | Block error rate | Time delay | Rate |
| Business | |||
| 10％ | 5 milliseconds | 60％ |
The match factor calculation can be as shown in table 10:
watch 10
| Signal to noise ratio4 | Matching factor |
| [ retransmission scheme, transmission frequency is 2%] | 19.62 |
| [ retransmission scheme, transmission frequency is 3%] | 19.33 |
| [ interleaving encoding scheme, interleaving depth is 720 ═] | 5.22 |
Obtaining the minimum value 5.22 in the matching factor set, thereby determining that the anti-interference scheme and the parameter configuration scheme adopted under the current data transmission and channel conditions are SubMeasure21[ interleaving encoding scheme, interleaving depth is 720 ═]。
Based on the same technical concept, the embodiment of the invention also provides anti-interference equipment which can be respectively applied to the above embodiments.
Referring to fig. 4, a schematic structural diagram of an anti-interference device provided in the embodiment of the present invention is shown. As shown, the network device may include: the device comprises an acquisition module 401, an anti-interference scheme selection module 402 and an anti-interference processing module 403, wherein:
an obtaining module 401, configured to obtain a channel performance parameter, where the channel performance parameter is used to characterize channel performance;
an anti-interference scheme selecting module 402, configured to select a matched anti-interference scheme from at least one pre-configured anti-interference scheme set according to the channel performance parameter and the service performance target index, where in the at least one anti-interference scheme set, different anti-interference scheme sets correspond to different anti-interference technology types, and different anti-interference schemes in one anti-interference scheme set correspond to different anti-interference configuration parameters;
and an anti-interference processing module 403, configured to perform anti-interference processing according to the matched anti-interference scheme.
The functions of the modules in the network device may refer to the descriptions of the functions implemented by the communication device in the foregoing embodiments, and are not repeated here.
Based on the same technical concept, the embodiment of the present application further provides a communication device, which can implement the functions of the communication device in the foregoing embodiments.
Referring to fig. 5, a schematic structural diagram of a communication device provided in the embodiment of the present application is shown. As shown, the communication device may include: a processor 501, a memory 502, a transceiver 503, and a bus interface 504.
The processor 501 is responsible for managing the bus architecture and general processing, and the memory 502 may store data used by the processor 501 in performing operations. The transceiver 503 is used to receive and transmit data under the control of the processor 501.
The bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 501, and various circuits, represented by memory 502, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The processor 501 is responsible for managing the bus architecture and general processing, and the memory 502 may store data used by the processor 501 in performing operations.
The process disclosed in the embodiment of the present invention may be applied to the processor 501, or implemented by the processor 501. In implementation, the steps of the signal processing flow may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 501. The processor 501 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof that may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 502, and the processor 501 reads the information in the memory 502 and completes the steps of the signal processing flow in combination with the hardware thereof.
Specifically, the processor 501 is configured to read the computer instructions in the memory 502 and execute the functions implemented on the network device side in the flow shown in fig. 3.
The embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable the computer to execute the method performed by the communication device in the foregoing embodiment.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (12)
1. An interference rejection method, comprising:
acquiring channel performance parameters, wherein the channel performance parameters are used for representing the channel performance;
selecting a matched anti-interference scheme from at least one pre-configured anti-interference scheme set according to the channel performance parameters and the service performance target indexes, wherein in the at least one anti-interference scheme set, different anti-interference scheme sets correspond to different anti-interference technology types, and different anti-interference schemes in one anti-interference scheme set correspond to different anti-interference configuration parameters;
and performing anti-interference processing according to the matched anti-interference scheme.
2. The method of claim 1, wherein an interference rejection scheme corresponds to a set of channel conditions for at least one channel environment type and a set of performance evaluation indicators corresponding to conditions in the set of conditions; the performance evaluation index corresponding to one anti-interference scheme is used for representing the performance which can be achieved by the anti-interference scheme.
3. The method according to claim 1 or 2, wherein said selecting a matching interference rejection scheme from at least one pre-configured set of interference rejection schemes based on said channel performance parameter and a service performance target indicator comprises:
determining a corresponding first channel condition according to the acquired channel performance parameters;
determining a matching factor corresponding to the anti-interference scheme contained in the at least one anti-interference scheme set under the first channel condition according to the first channel condition and a service performance target index; the matching factor corresponding to one anti-interference scheme under the first channel condition is used for representing the matching degree between the performance evaluation index and the service performance target index of the anti-interference scheme under the first channel condition;
and selecting an anti-interference scheme from the at least one anti-interference scheme according to the matching factor corresponding to the at least one anti-interference scheme.
4. The method according to claim 3, wherein the following formula is adopted to determine, according to the first channel condition and a service performance target indicator, a matching factor corresponding to the interference rejection scheme included in the at least one interference rejection scheme set under the first channel condition:
therein, DismsA matching factor corresponding to the s anti-interference scheme in the m anti-interference scheme set, AjFor the weighting factor, Perform, corresponding to the j-th performance evaluation indexmsc′_jPerformReq as a j performance evaluation indexjA performance target index corresponding to the jth performance evaluation index; and P is the total number of performance evaluation indexes corresponding to the s-th anti-interference scheme, and is an integer greater than or equal to 1.
5. The method according to claim 4, wherein said selecting an interference rejection scheme from said at least one interference rejection scheme according to a matching factor corresponding to said at least one interference rejection scheme comprises:
and selecting the anti-interference scheme corresponding to the minimum matching factor from the at least one anti-interference scheme according to the minimum matching factor in the matching factors corresponding to the at least one anti-interference scheme.
6. An interference rejection device, comprising:
an obtaining module, configured to obtain a channel performance parameter, where the channel performance parameter is used to characterize channel performance;
the anti-interference scheme selection module is used for selecting a matched anti-interference scheme from at least one pre-configured anti-interference scheme set according to the channel performance parameter and the service performance target index, wherein in the at least one anti-interference scheme set, different anti-interference scheme sets correspond to different anti-interference technology types, and different anti-interference schemes in one anti-interference scheme set correspond to different anti-interference configuration parameters;
and the anti-interference processing module is used for carrying out anti-interference processing according to the matched anti-interference scheme.
7. A communication device, comprising: a processor, memory, transceiver; the processor is used for reading the computer instructions in the memory and executing:
acquiring channel performance parameters, wherein the channel performance parameters are used for representing the channel performance;
selecting a matched anti-interference scheme from at least one pre-configured anti-interference scheme set according to the channel performance parameters and the service performance target indexes, wherein in the at least one anti-interference scheme set, different anti-interference scheme sets correspond to different anti-interference technology types, and different anti-interference schemes in one anti-interference scheme set correspond to different anti-interference configuration parameters;
and performing anti-interference processing according to the matched anti-interference scheme.
8. The apparatus of claim 7, wherein an interference rejection scheme corresponds to a set of channel conditions for at least one channel environment type and a set of performance evaluation indicators corresponding to conditions in the set of conditions; the performance evaluation index corresponding to one anti-interference scheme is used for representing the performance which can be achieved by the anti-interference scheme.
9. The device of claim 7 or 8, wherein the processor is specifically configured to:
determining a corresponding first channel condition according to the acquired channel performance parameters;
determining a matching factor corresponding to the anti-interference scheme contained in the at least one anti-interference scheme set under the first channel condition according to the first channel condition and a service performance target index; the matching factor corresponding to one anti-interference scheme under the first channel condition is used for representing the matching degree between the performance evaluation index and the service performance target index of the anti-interference scheme under the first channel condition;
and selecting an anti-interference scheme from the at least one anti-interference scheme according to the matching factor corresponding to the at least one anti-interference scheme.
10. The device of claim 9, wherein the processor is specifically configured to:
therein, DismsA matching factor corresponding to the s anti-interference scheme in the m anti-interference scheme set, AjFor the weighting factor, Perform, corresponding to the j-th performance evaluation indexmsc′_jPerformReq as a j performance evaluation indexjAnd the performance target index corresponding to the j performance evaluation index.
11. The device of claim 10, wherein the processor is specifically configured to:
and selecting the anti-interference scheme corresponding to the minimum matching factor from the at least one anti-interference scheme according to the minimum matching factor in the matching factors corresponding to the at least one anti-interference scheme.
12. A computer-readable storage medium having stored thereon computer-executable instructions for causing a computer to perform the method of any one of claims 1-5.
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