CN112422163A - Signal receiving processing mode selection method and device of signal receiving end - Google Patents

Signal receiving processing mode selection method and device of signal receiving end Download PDF

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CN112422163A
CN112422163A CN202011288022.4A CN202011288022A CN112422163A CN 112422163 A CN112422163 A CN 112422163A CN 202011288022 A CN202011288022 A CN 202011288022A CN 112422163 A CN112422163 A CN 112422163A
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signal
mode
receiving
signal receiving
antenna
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CN112422163B (en
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王琳
陈名峰
王鑫
马凤鸣
温文坤
林英喜
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Guangzhou Jixiang Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/0871—Hybrid systems, i.e. switching and combining using different reception schemes, at least one of them being a diversity reception scheme
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/084—Equal gain combining, only phase adjustments
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0848—Joint weighting
    • H04B7/0857—Joint weighting using maximum ratio combining techniques, e.g. signal-to- interference ratio [SIR], received signal strenght indication [RSS]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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Abstract

The embodiment of the application discloses a method and a device for selecting a signal receiving processing mode of a signal receiving end. According to the technical scheme provided by the embodiment of the application, a first binding relationship between the service type and the signal receiving mode and a second binding relationship between each signal transmitting end and the corresponding diversity combining mode are constructed in advance. And then, analyzing the currently received signal, extracting the service type information and the signal transmitting terminal identification information of the signal, inquiring the first binding relationship according to the service type information, determining the signal receiving mode of the current signal, inquiring the second binding relationship according to the signal transmitting terminal identification information if the signal receiving mode of the current signal is determined to be the multi-antenna receiving mode, and determining the diversity combining mode of the current signal. The signal receiving mode and the diversity combining mode are adaptively selected through different service types and different signal transmitting ends, the signal receiving and processing effect is optimized, the signal processing efficiency is improved, and the energy consumption management of the system is optimized.

Description

Signal receiving processing mode selection method and device of signal receiving end
Technical Field
The embodiment of the application relates to the technical field of signal receiving, in particular to a method and a device for selecting a signal receiving processing mode of a signal receiving end.
Background
At present, with the development of communication technology, various communication devices have become indispensable devices for people's life. During communication, the communication equipment receives communication signals by using the antenna. In order to ensure the communication quality and reduce the influence of signal fading, in some communication scenarios, a diversity technique is used to transmit signals between a signal transmitting end and a signal receiving end. The diversity technique is to use multiple signal paths that transmit the same information and have approximately equal average signal strength and mutually independent fading characteristics, and appropriately combine these signals at the receiving end, so as to greatly reduce the influence of multipath fading, thereby improving the reliability of transmission. That is, if one wireless propagation path experiences deep fading, and another relatively independent path may still contain a strong signal, two or more signals may be selected from the multiple signals to be combined, so that the instantaneous signal-to-noise ratio and the average signal-to-noise ratio of the receiving end can be simultaneously improved, the influence of multipath fading is further reduced, and the reliability of information transmission is improved.
However, simply receiving signals using antenna diversity techniques optimizes signal reception performance to some extent, but also increases power consumption at the signal receiving end. Moreover, since the signals are received and combined by the plurality of antennas in a diversity manner, the processing time of the signals is prolonged, and the processing efficiency of the signals is reduced.
Disclosure of Invention
The embodiment of the application provides a method and a device for selecting a signal receiving processing mode of a signal receiving end, which can adaptively select the signal receiving mode and a diversity combining mode through different service types and different signal transmitting ends, optimize the signal receiving processing effect, improve the signal processing efficiency and optimize the energy consumption management of a system.
In a first aspect, an embodiment of the present application provides a method for selecting a signal receiving processing mode at a signal receiving end, including:
configuring corresponding signal receiving modes for different service types in advance, and constructing a first binding relationship between the service types and the signal receiving modes, wherein the signal receiving modes comprise a single-antenna receiving mode and a multi-antenna receiving mode;
receiving test signals transmitted by each fixed signal transmitting end through multi-antenna diversity in advance, performing performance evaluation of different diversity combining modes based on the test signals, and constructing a second binding relationship between each signal transmitting end and the corresponding diversity combining mode according to a performance evaluation result, wherein the diversity combining modes comprise a selective combining mode, a maximum ratio combining mode and an equal gain combining mode;
analyzing the currently received signal, extracting the service type information and the signal transmitting terminal identification information of the signal, inquiring the first binding relationship according to the service type information, determining the signal receiving mode of the current signal, inquiring the second binding relationship according to the signal transmitting terminal identification information if the signal receiving mode of the current signal is determined to be the multi-antenna receiving mode, and determining the diversity combining mode of the current signal.
Further, before analyzing the currently received signal, the method further includes:
in the initial signal reception mode, signals are independently received through a single antenna.
Further, after querying the second binding relationship according to the signal transmitting end identification information and determining the diversity combining mode of the current signal, the method further includes:
and after the signal corresponding to the service type is received, recovering the initial signal receiving mode, and independently receiving the signal through the single antenna.
Further, before independently receiving signals through a single antenna, the method further includes:
and obtaining a signal receiving performance test result of each antenna through a signal receiving performance test, and selecting one antenna to receive signals in the initial signal receiving mode based on the signal receiving performance test result.
Further, after querying the first binding relationship according to the service type information and determining the signal receiving mode of the current signal, the method further includes:
detecting a signal quality parameter of the current signal in real time if the signal receiving mode of the current signal is a single-antenna receiving mode;
and when the signal quality parameter is detected to be lower than a preset parameter threshold value for a continuously set number of times, switching the current signal receiving mode into a multi-antenna receiving mode.
Further, after querying the second binding relationship according to the signal transmitting end identification information and determining the diversity combining mode of the current signal, the method further includes:
randomly extracting a set number of signals received corresponding to the service types, and carrying out signal combination by using each diversity combination mode according to a plurality of signal copies of each signal to obtain corresponding combined signals;
performing signal combination performance evaluation of each diversity combination mode based on the combination signal to obtain a corresponding combination performance evaluation result;
and judging whether to switch the diversity combining mode of the current signal or not based on the combining performance evaluation result.
Further, after determining whether to switch the diversity combining mode of the current signal based on the combining performance evaluation result, the method further includes:
and if the diversity combining mode of the current signal is judged to be switched, unbinding the second binding relationship, and rebinding the second binding relationship based on the switched diversity combining mode.
In a second aspect, an embodiment of the present application provides a signal receiving processing mode selection apparatus for a signal receiving end, including:
the first binding module is used for configuring corresponding signal receiving modes for different service types in advance and constructing a first binding relationship between the service types and the signal receiving modes, wherein the signal receiving modes comprise a single-antenna receiving mode and a multi-antenna receiving mode;
the second binding module is used for receiving test signals transmitted by each fixed signal transmitting end through multi-antenna diversity in advance, performing performance evaluation of different diversity combining modes based on the test signals, and constructing a second binding relationship between each signal transmitting end and the corresponding diversity combining mode according to a performance evaluation result, wherein the diversity combining modes comprise a selective combining mode, a maximum ratio combining mode and an equal gain combining mode;
a determining module, configured to analyze a currently received signal, extract service type information and signal transmitting end identification information of the signal, query the first binding relationship according to the service type information, determine the signal receiving mode of the current signal, query the second binding relationship according to the signal transmitting end identification information if it is determined that the signal receiving mode of the current signal is the multi-antenna receiving mode, and determine a diversity combining mode of the current signal.
In a third aspect, an embodiment of the present application provides an electronic device, including:
a memory and one or more processors;
the memory for storing one or more programs;
when the one or more programs are executed by the one or more processors, the one or more processors implement the signal reception processing mode selection method at the signal reception end according to the first aspect.
In a fourth aspect, embodiments of the present application provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform the signal reception processing mode selection method for a signal receiving end according to the first aspect.
The method comprises the steps of configuring corresponding signal receiving modes for different service types in advance, and constructing a first binding relationship between the service types and the signal receiving modes, wherein the signal receiving modes comprise a single-antenna receiving mode and a multi-antenna receiving mode; the method comprises the steps of receiving test signals transmitted by each fixed signal transmitting end through multi-antenna diversity in advance, carrying out performance evaluation of different diversity combining modes based on the test signals, and constructing a second binding relationship between each signal transmitting end and the corresponding diversity combining mode according to a performance evaluation result, wherein the diversity combining modes comprise a selection combining mode, a maximum ratio combining mode and an equal gain combining mode. And then, analyzing the currently received signal, extracting the service type information and the signal transmitting terminal identification information of the signal, inquiring the first binding relationship according to the service type information, determining the signal receiving mode of the current signal, inquiring the second binding relationship according to the signal transmitting terminal identification information if the signal receiving mode of the current signal is determined to be the multi-antenna receiving mode, and determining the diversity combining mode of the current signal. By adopting the technical means, the signal receiving mode and the diversity combining mode are adaptively selected through different service types and different signal transmitting ends, the signal receiving and processing effect is optimized, the signal processing efficiency is improved, and the energy consumption management of the system is optimized.
Drawings
Fig. 1 is a flowchart of a signal receiving processing mode selection method of a signal receiving end according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a signal receiving end in the first embodiment of the present application;
fig. 3 is a flow chart of signal receiving mode switching in the first embodiment of the present application;
fig. 4 is a flowchart of diversity combining mode switching in the first embodiment of the present application;
fig. 5 is a flowchart of a signal receiving process in the first embodiment of the present application;
fig. 6 is a schematic structural diagram of a signal receiving processing mode selection apparatus of a signal receiving end according to a second embodiment of the present application;
fig. 7 is a schematic structural diagram of an electronic device according to a third embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, specific embodiments of the present application will be described in detail with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some but not all of the relevant portions of the present application are shown in the drawings. Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently or simultaneously. In addition, the order of the operations may be re-arranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like.
The first embodiment is as follows:
fig. 1 is a flowchart of a signal receiving processing mode selection method of a signal receiving end according to an embodiment of the present disclosure, where the signal receiving processing mode selection method of the signal receiving end provided in this embodiment may be executed by a signal receiving processing mode selection device of the signal receiving end, the signal receiving processing mode selection device of the signal receiving end may be implemented in a software and/or hardware manner, and the signal receiving processing mode selection device of the signal receiving end may be formed by two or more physical entities or may be formed by one physical entity. Generally, the signal receiving processing mode selection device may be a signal receiving end device such as a base station or a gateway.
The following description will be made by taking the signal reception processing mode selection apparatus as an example of a main body of a signal reception processing mode selection method performed at a signal reception side. Referring to fig. 1, the method for selecting a signal receiving processing mode at a signal receiving end specifically includes:
s110, configuring corresponding signal receiving modes for different service types in advance, and constructing a first binding relationship between the service types and the signal receiving modes, wherein the signal receiving modes comprise a single-antenna receiving mode and a multi-antenna receiving mode.
The method for selecting the signal receiving processing mode in the embodiment of the application aims to extract the service type information and the signal transmitting end identification information by pre-constructing the first binding relationship between the service type of the signal and the signal receiving mode and the second binding relationship between each signal transmitting end and the corresponding diversity combining mode and subsequently analyzing the received signal, namely, the first binding relationship and the second binding relationship can be correspondingly inquired based on the service type information and the signal transmitting end identification information, and the corresponding signal receiving mode and the diversity combining mode are selected for receiving and combining the signal.
For example, referring to fig. 2, a schematic structural diagram of a signal receiving processing mode selecting device (i.e., a signal receiving end) according to an embodiment of the present application is provided, where the signal receiving end is provided with N antennas and corresponding receivers, and each antenna and corresponding receiver is configured to receive a signal of a corresponding signal branch (i.e., a channel). The signals are transmitted to a processor, which is generally a baseband processor, through respective receivers, and the processor processes the respective diversity signals, and combines the diversity signals, thereby implementing signal diversity reception and combining at a signal receiving end. It can be understood that, when a signal transmitting end transmits a piece of information to a signal receiving end, multiple signal copies corresponding to the same piece of information are generated through multipath fading. When the signal receiving end receives signals, if a multi-antenna receiving mode is adopted for signal receiving, each signal copy is independently received through each antenna, so that diversity reception of the signals is completed, and then a corresponding diversity combining mode is selected for signal combining. If a single antenna is used for signal reception, the signal is received through the single antenna and directly processed.
It should be noted that the requirements for the signal transmission quality are different in consideration of different service types. For the service types with relatively high service levels and relatively important service types, when the signal receiving end receives the signals of the corresponding service types, the signal receiving end is required to have relatively high signal transmission performance, and the influence of excessive attenuation of the signals on the receiving processing of the services is avoided. For a service type with a relatively low service level, if a signal received by a single antenna is sufficient to meet the signal transmission performance requirement, the single antenna may be preferentially selected for receiving the signal of the service type. Based on this, the embodiment of the application constructs the first binding relationship between the service type and the signal receiving mode by prediction, binds the service type with relatively high signal transmission performance requirement with the multi-antenna receiving mode, and binds the service type with relatively low signal transmission performance requirement with the single-antenna receiving mode, thereby constructing the first binding relationship. It will be appreciated that when signals are received using the multiple antenna reception mode, each antenna receives one signal copy independently, and multiple signal copies received by each antenna in diversity may result in a combined signal with relatively less signal attenuation through signal diversity combining. Therefore, for the service type with high signal transmission performance requirement, the bound multi-antenna receiving mode can be selected, so as to guarantee the signal transmission performance.
S120, receiving test signals transmitted by each fixed signal transmitting end through multi-antenna diversity in advance, performing performance evaluation of different diversity combining modes based on the test signals, and constructing a second binding relationship between each signal transmitting end and the corresponding diversity combining mode according to a performance evaluation result, wherein the diversity combining modes comprise a selective combining mode, a maximum ratio combining mode and an equal gain combining mode.
On the other hand, considering that the signal transmitting terminals at different positions have different signal transmission performance, the signal attenuation conditions of the signals are different when the signals transmitted by the signal transmitting terminals are received corresponding to one end of the signal receiving terminal. After the signals are received through diversity, the signals are combined by adopting different diversity combining modes, and the signal quality of the combined signals obtained by the signals is different. Based on this, in the embodiments of the present application, a corresponding diversity combining mode is configured for each signal transmitting end, so that after the signal transmitted by the signal transmitting end is received in diversity, a high-quality combined signal is obtained by combining through the pre-configured diversity combining mode.
Specifically, for each fixed position signal transmitting end, a test signal is transmitted to a signal receiving end. The signal receiving end can perform performance evaluation of each diversity combining mode based on a plurality of signal copies of the test signal. Wherein the signal combining performance of each diversity combining mode is evaluated based on the signal parameters by determining the signal power, the noise power and the signal-to-noise ratio of each signal copy. Specifically, a signal combination formula is provided:
Figure BDA0002782992130000061
wherein, akWeight coefficient representing the k-th signal copy (here, a is taken)1～aM) The weighting coefficient is influenced by the signal-to-noise ratio of the corresponding branch, and the greater the signal-to-noise ratio is, the weighting coefficient akThe larger, rkRepresenting the input of the kth signal copy (here taking r)1～rM) M denotes the number of signal copies, i.e. the number of diversity antennas, and r (t) denotes the output of the combined signal.
And based on the signal combination formula, combining the signal-to-noise ratios of the signal branches which are determined in advance, and correspondingly performing signal combination performance evaluation of a selection combination mode, a maximum ratio combination mode and an equal gain combination mode. In the selective combiner, only one effective weighting coefficient is provided, and the weighting coefficients corresponding to the rest of the signal copies are all 0. The signal combining formula of the selective combining mode can be expressed as:
r(t1)＝amaxrmax
wherein, amaxRepresenting the weighting factor, r, corresponding to the signal branch having the greatest signal-to-noise ratiomaxThe signal replica, r (t), representing the signal received by the signal branch with the greatest signal-to-noise ratio1) Indicating the output result of the selective combining.
The maximum ratio combining mode is to weight each signal branch, and the weighting coefficient a of each signal branchkWith corresponding signal envelope rkProportional to (i.e. signal replica input) and noise power NkIn inverse proportion. The signal combining formula of the maximum ratio combining mode can be expressed as:
Figure BDA0002782992130000071
wherein, akWeight coefficient representing the k-th signal copy (here, a is taken)1～aM)，rkRepresenting the input of the kth signal copy (i.e. the signal envelope), M represents the number of signal copies, i.e. the number of diversity antennas, r (t)2) Output result of the combined signal, N, representing the maximal ratio combining modekRepresenting the noise power.
The equal gain combining mode does not need to weight the signals, the signals of each signal branch are added by equal gain, and the signal combining formula of the equal gain combining mode can be expressed as:
Figure BDA0002782992130000072
wherein r iskRepresenting the input of the k-th signal copy, M representing the number of signal copies, i.e. the number of diversity antennas, r (t)3) An output result of the combined signal representing the equal gain combining mode.
Based on the known signal-to-noise ratio, signal power and noise power, and in combination with a preset weighting coefficient conversion mode, the corresponding weighting coefficient can be determined according to the signal-to-noise ratio, signal power and noise power information. Then, based on the signal combination formula of each diversity combination mode, the combined signal output result of each diversity combination mode can be determined. And further based on the output results of the combined signals of the three diversity combining modes, namely the output results of the three combined signals through comparison, evaluating the signal combining performance of the corresponding diversity combining mode to obtain the corresponding performance evaluation result. And comparing the values of the three output results to determine the maximum output result of the selected output value, and determining that the diversity combining mode corresponding to the output result has the current best signal combining performance. And then selecting the subset and binding the mode with the information of the signal transmitting terminal to construct the second binding relationship. It should be noted that the above signal combining performance evaluation is only one implementation way for evaluating the signal combining performance according to the embodiment of the present application, and in practical application, the signal combining performance may also be determined according to the error rates of the combined signals of the three diversity combining modes according to actual evaluation requirements. There are many ways to evaluate the signal combining performance of the diversity combining mode in the prior art, and the embodiments of the present application are not limited herein.
S130, analyzing the currently received signal, extracting the service type information and the signal transmitting terminal identification information of the signal, inquiring the first binding relationship according to the service type information, determining the signal receiving mode of the current signal, inquiring the second binding relationship according to the signal transmitting terminal identification information if the signal receiving mode of the current signal is determined to be the multi-antenna receiving mode, and determining the diversity combining mode of the current signal.
Finally, after the first binding relationship and the second binding relationship are pre-constructed, the selection of the signal receiving mode and the diversity combining mode can be performed according to the service type of the signal and the identification information of the signal transmitting terminal when the signal is received.
Specifically, when receiving a signal in the initial state, the signal receiving end independently receives a signal through a single antenna in the initial signal receiving mode. It can be understood that, since the service type of the signal to be received and the signal transmitting end are not yet clear, in the initial state, a single antenna is selected for signal reception, so as to save energy consumption of the signal receiving end and improve the signal reception processing efficiency.
Further, based on the signal received in the initial signal receiving mode, the signal receiving mode required to be used by the current signal is determined by analyzing the service type information of the signal and the identification information of the signal receiving end and inquiring the first binding relationship which is constructed in advance based on the service type information. If the signal receiving mode is determined to be the single-antenna receiving mode, directly keeping the single-antenna receiving signal in the current initial signal receiving mode. If the signal receiving mode is determined to be the multi-antenna receiving mode, all antennas of the signal receiving end are started to receive signals. Further, when the signal receiving mode is determined to be the multi-antenna receiving mode, in order to adaptively provide an optimal signal diversity combining mode, the second binding relationship is queried by extracting the signal receiving end identification information, the current signal diversity combining mode is determined, and then the signal receiving and combining processing is performed based on the determined signal receiving mode and diversity combining mode.
Furthermore, after the signal reception of the corresponding service type is completed, the initial signal reception mode is recovered, and signal reception is independently performed through a single antenna. It can be understood that, after the signal reception of the current service type is completed, in order to save energy consumption, the current signal reception mode needs to be restored to the initial signal reception mode, and a single antenna is used to receive signals, so as to avoid energy consumption of a signal receiving end caused by receiving signals with multiple antennas, and save energy consumption of the signal receiving end.
In one embodiment, for a single antenna used for signal reception in the initial signal mode, a signal reception performance test result of each antenna is also obtained through a signal reception performance test, and one antenna is selected for receiving signals in the initial signal reception mode based on the signal reception performance test result. Specifically, when the signal receiving performance of each antenna is tested, each antenna receives a test signal sent by each signal transmitting terminal, and based on each test signal, an initial signal quality parameter value of the test signal is calculated. Wherein the initial signal quality parameter value of the test signal is determined by the signal reception power, the signal reception strength, the channel instantaneous quality value and/or the interference signal strength of the corresponding antenna. Wherein the channel instantaneous quality value represents the channel quality, channel matrix feedback, signal response and/or interference information for the corresponding diversity antenna. And measuring the various types of parameters through the corresponding test signals and the antenna parameters. Further, in order to quantize the initial signal quality parameter value, a calculation formula of the initial signal quality parameter value is provided to quantize the signal quality of the test signal, and the calculation formula of the initial signal quality parameter value is:
f＝ω1P+ω2d1+ω3h+ω4d2
where f is the initial signal quality parameter value, P is the signal received power, d1For signal received strength, h is signalInstantaneous quality value of the track, d2For interfering signal strength, omega1，ω2，ω3And ω4The influence factors are determined according to actual tests and can be set according to actual influences of various types of parameters on the initial signal quality parameter values. Based on the initial signal quality parameter value calculation formula, the initial signal quality parameter value of each test signal can be determined. It should be noted that, in practical applications, according to different signal quality evaluation criteria, a plurality of different manners may be selected to evaluate the signal quality of each test signal, and a corresponding quantization formula is set accordingly. The above formula is only one calculation method for calculating the initial signal quality parameter value in the embodiment of the present application, and various different measurement and calculation formulas may be selected according to actual measurement and calculation requirements, which is not described herein again. Further, based on the initial signal quality parameters of each test signal, the average value of the initial signal quality parameters can be obtained according to the initial signal quality parameters of each test signal received by the antenna, and the average value of the initial signal quality parameters is used as a signal receiving performance test result. It can be understood that the larger the mean value of the initial signal quality parameters is, the better the signal receiving performance is, and based on the result of the signal receiving performance test, the antenna with the best signal receiving performance can be selected for receiving signals in the initial signal receiving mode.
In one embodiment, when a single antenna is used for receiving the signal of the current service type, the switching of the signal receiving mode is also carried out according to the signal quality parameter of the current signal. Referring to fig. 3, the signal receiving mode switching process includes:
s131, detecting a signal quality parameter of the current signal in real time if the signal receiving mode of the current signal is a single-antenna receiving mode;
s132, when the signal quality parameter is detected to be lower than a preset parameter threshold value for a continuous set number of times, switching the current signal receiving mode to be a multi-antenna receiving mode.
And correspondingly calculating the signal quality parameter of the current signal by using the calculation formula of the initial signal quality parameter value based on the current signal received by the single antenna according to the measuring and calculating mode of the initial signal quality parameter of the test signal. And comparing the measured signal quality parameters with a preset parameter threshold value based on the measured signal quality parameters, wherein if the signal quality parameters are lower than the parameter threshold value, the signal receiving performance of the current antenna is relatively poor. If the signal quality parameter of the detected signal is lower than the parameter threshold value for the continuously set times, the signal receiving performance of the current antenna is continuously in a poor receiving performance state. At this time, in order to ensure the signal receiving performance, all antennas can be turned on, and a multi-antenna receiving mode is used for receiving signals, so that the signal receiving performance is ensured, and the processing of the corresponding service types is prevented from being blocked.
In one embodiment, after combining signals by using corresponding diversity combining modes based on the current multi-antenna diversity received signals, the diversity combining mode of the current signals is judged whether to be switched or not based on the combining performance evaluation result by evaluating the signal combining performance of each diversity combining mode in real time. Referring to fig. 4, the diversity combining mode switching procedure includes:
s133, randomly extracting a set number of signals received corresponding to the service types, and combining the signals by using the diversity combining modes according to a plurality of signal copies of each signal to obtain corresponding combined signals;
s134, performing signal combination performance evaluation of each diversity combination mode based on the combination signal to obtain a corresponding combination performance evaluation result;
and S135, judging whether to switch the diversity combining mode of the current signal or not based on the combining performance evaluation result.
Specifically, based on the signals received in the multi-antenna reception mode, a set number of signals are randomly extracted, and a plurality of signal copies corresponding to the respective signals are determined. And based on a plurality of signal copies of the same signal, respectively using a selective combination mode, a maximum ratio combination mode and an equal gain combination mode to carry out diversity combination on the signal so as to obtain corresponding combined signals. Immediately, since a set number of signals are randomly extracted, a set number of combined signals are combined for each diversity combining mode through diversity combining. Further, signal combination performance evaluation is performed based on the output result of this combined signal. Referring to the signal combining performance evaluation manner in step S120, the output results of the combined signals corresponding to the same diversity combining mode are superimposed and averaged, and the average of the output results of the combined signals is compared to determine the diversity combining mode with the best signal combining performance. It can be understood that, if the optimal diversity combining mode is the diversity combining mode determined by querying the second binding relationship, the diversity combining mode does not need to be switched. On the contrary, if the optimal diversity combining mode is not the diversity combining mode determined by inquiring the second binding relationship, the diversity combining mode currently used for signal combining needs to be switched to the optimal diversity combining mode, so as to complete the switching of the diversity combining mode.
Further, if it is determined to perform switching of the diversity combining mode of the current signal, the second binding relationship is unbound, and the second binding relationship is rebinding based on the switched diversity combining mode. It can be understood that, after determining the current optimal diversity combining mode according to the real-time signal combining performance evaluation, the original second binding relationship needs to be unbound according to the switched diversity combining mode, and the switched diversity combining mode is bound with the corresponding signal transmitting end, so as to ensure the combining performance of the subsequent signal diversity combining.
Referring to fig. 5, in the embodiment of the present application, a signal is received, service type information and signal transmitting end information of the signal are analyzed, and then a signal receiving mode and a diversity combining mode of a current signal are determined by querying a first binding relationship and a second binding relationship that are constructed in advance, so that signals are received in a multi-antenna diversity manner, and the signals are combined in a corresponding diversity combining mode, so that a better signal receiving processing effect is achieved, signal receiving performance is guaranteed, and energy consumption management of a signal receiving end is optimized.
As described above, the first binding relationship between the service type and the signal receiving mode is established by configuring corresponding signal receiving modes for different service types in advance, where the signal receiving mode includes a single-antenna receiving mode and a multi-antenna receiving mode; the method comprises the steps of receiving test signals transmitted by each fixed signal transmitting end through multi-antenna diversity in advance, carrying out performance evaluation of different diversity combining modes based on the test signals, and constructing a second binding relationship between each signal transmitting end and the corresponding diversity combining mode according to a performance evaluation result, wherein the diversity combining modes comprise a selection combining mode, a maximum ratio combining mode and an equal gain combining mode. And then, analyzing the currently received signal, extracting the service type information and the signal transmitting terminal identification information of the signal, inquiring the first binding relationship according to the service type information, determining the signal receiving mode of the current signal, inquiring the second binding relationship according to the signal transmitting terminal identification information if the signal receiving mode of the current signal is determined to be the multi-antenna receiving mode, and determining the diversity combining mode of the current signal. By adopting the technical means, the signal receiving mode and the diversity combining mode are adaptively selected through different service types and different signal transmitting ends, the signal receiving and processing effect is optimized, the signal processing efficiency is improved, and the energy consumption management of the system is optimized.
Example two:
based on the above embodiments, fig. 6 is a schematic structural diagram of a signal receiving processing mode selection apparatus of a signal receiving end according to a second embodiment of the present application. Referring to fig. 6, the signal receiving processing mode selecting apparatus of the signal receiving end provided in this embodiment specifically includes: a first binding module 21, a second binding module 22 and a determining module 23.
The first binding module 21 is configured to configure corresponding signal receiving modes for different service types in advance, and construct a first binding relationship between the service type and the signal receiving mode, where the signal receiving mode includes a single-antenna receiving mode and a multi-antenna receiving mode;
the second binding module 22 is configured to receive, in advance, test signals transmitted by each fixed signal transmitting end through multi-antenna diversity, perform performance evaluation in different diversity combining modes based on the test signals, and construct, according to a performance evaluation result, a second binding relationship between each signal transmitting end and the corresponding diversity combining mode, where the diversity combining modes include a selective combining mode, a maximum ratio combining mode, and an equal gain combining mode;
the determining module 23 is configured to analyze a currently received signal, extract service type information and signal transmitting end identification information of the signal, query the first binding relationship according to the service type information, determine the signal receiving mode of the current signal, query the second binding relationship according to the signal transmitting end identification information if it is determined that the signal receiving mode of the current signal is the multi-antenna receiving mode, and determine a diversity combining mode of the current signal.
As described above, the first binding relationship between the service type and the signal receiving mode is established by configuring corresponding signal receiving modes for different service types in advance, where the signal receiving mode includes a single-antenna receiving mode and a multi-antenna receiving mode; the method comprises the steps of receiving test signals transmitted by each fixed signal transmitting end through multi-antenna diversity in advance, carrying out performance evaluation of different diversity combining modes based on the test signals, and constructing a second binding relationship between each signal transmitting end and the corresponding diversity combining mode according to a performance evaluation result, wherein the diversity combining modes comprise a selection combining mode, a maximum ratio combining mode and an equal gain combining mode. And then, analyzing the currently received signal, extracting the service type information and the signal transmitting terminal identification information of the signal, inquiring the first binding relationship according to the service type information, determining the signal receiving mode of the current signal, inquiring the second binding relationship according to the signal transmitting terminal identification information if the signal receiving mode of the current signal is determined to be the multi-antenna receiving mode, and determining the diversity combining mode of the current signal. By adopting the technical means, the signal receiving mode and the diversity combining mode are adaptively selected through different service types and different signal transmitting ends, the signal receiving and processing effect is optimized, the signal processing efficiency is improved, and the energy consumption management of the system is optimized.
The signal receiving processing mode selection device of the signal receiving end provided in the second embodiment of the present application can be used to execute the signal receiving processing mode selection method of the signal receiving end provided in the first embodiment of the present application, and has corresponding functions and beneficial effects.
Example three:
an embodiment of the present application provides an electronic device, and with reference to fig. 7, the electronic device includes: a processor 31, a memory 32, a communication module 33, an input device 34, and an output device 35. The number of processors in the electronic device may be one or more, and the number of memories in the electronic device may be one or more. The processor, memory, communication module, input device, and output device of the electronic device may be connected by a bus or other means.
The memory 32 is a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the signal receiving processing mode selecting method of the signal receiving end according to any embodiment of the present application (for example, the first binding module, the second binding module, and the determining module in the signal receiving processing mode selecting device of the signal receiving end). The memory can mainly comprise a program storage area and a data storage area, wherein the program storage area can store an operating system and an application program required by at least one function; the storage data area may store data created according to use of the device, and the like. Further, the memory may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory may further include memory located remotely from the processor, and these remote memories may be connected to the device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The communication module 33 is used for data transmission.
The processor 31 executes various functional applications and data processing of the device by running software programs, instructions and modules stored in the memory, that is, implements the signal receiving processing mode selection method of the signal receiving end.
The input device 34 may be used to receive entered numeric or character information and to generate key signal inputs relating to user settings and function controls of the apparatus. The output device 35 may include a display device such as a display screen.
The electronic device provided above can be used to execute the signal receiving processing mode selection method of the signal receiving end provided in the first embodiment, and has corresponding functions and beneficial effects.
Example four:
the present invention also provides a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform a signal receiving processing mode selection method for a signal receiving end, where the signal receiving processing mode selection method for the signal receiving end includes: configuring corresponding signal receiving modes for different service types in advance, and constructing a first binding relationship between the service types and the signal receiving modes, wherein the signal receiving modes comprise a single-antenna receiving mode and a multi-antenna receiving mode; receiving test signals transmitted by each fixed signal transmitting end through multi-antenna diversity in advance, performing performance evaluation of different diversity combining modes based on the test signals, and constructing a second binding relationship between each signal transmitting end and the corresponding diversity combining mode according to a performance evaluation result, wherein the diversity combining modes comprise a selective combining mode, a maximum ratio combining mode and an equal gain combining mode; analyzing the currently received signal, extracting the service type information and the signal transmitting terminal identification information of the signal, inquiring the first binding relationship according to the service type information, determining the signal receiving mode of the current signal, inquiring the second binding relationship according to the signal transmitting terminal identification information if the signal receiving mode of the current signal is determined to be the multi-antenna receiving mode, and determining the diversity combining mode of the current signal.
Storage medium-any of various types of memory devices or storage devices. The term "storage medium" is intended to include: mounting media such as CD-ROM, floppy disk, or tape devices; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Lanbas (Rambus) RAM, etc.; non-volatile memory such as flash memory, magnetic media (e.g., hard disk or optical storage); registers or other similar types of memory elements, etc. The storage medium may also include other types of memory or combinations thereof. In addition, the storage medium may be located in a first computer system in which the program is executed, or may be located in a different second computer system connected to the first computer system through a network (such as the internet). The second computer system may provide program instructions to the first computer for execution. The term "storage medium" may include two or more storage media residing in different locations, e.g., in different computer systems connected by a network. The storage medium may store program instructions (e.g., embodied as a computer program) that are executable by one or more processors.
Of course, the storage medium containing the computer-executable instructions provided in the embodiments of the present application is not limited to the signal receiving processing mode selection method of the signal receiving end described above, and may also perform related operations in the signal receiving processing mode selection method of the signal receiving end provided in any embodiments of the present application.
The signal receiving processing mode selection device, the storage medium, and the electronic device of the signal receiving end provided in the foregoing embodiments may execute the signal receiving processing mode selection method of the signal receiving end provided in any embodiment of the present application, and refer to the signal receiving processing mode selection method of the signal receiving end provided in any embodiment of the present application without detailed technical details described in the foregoing embodiments.
The foregoing is considered as illustrative of the preferred embodiments of the invention and the technical principles employed. The present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the claims.

Claims (10)

1. A signal receiving processing mode selection method of a signal receiving end is characterized by comprising the following steps:
configuring corresponding signal receiving modes for different service types in advance, and constructing a first binding relationship between the service types and the signal receiving modes, wherein the signal receiving modes comprise a single-antenna receiving mode and a multi-antenna receiving mode;
receiving test signals transmitted by each fixed signal transmitting end through multi-antenna diversity in advance, performing performance evaluation of different diversity combining modes based on the test signals, and constructing a second binding relationship between each signal transmitting end and the corresponding diversity combining mode according to a performance evaluation result, wherein the diversity combining modes comprise a selective combining mode, a maximum ratio combining mode and an equal gain combining mode;
analyzing the currently received signal, extracting the service type information and the signal transmitting terminal identification information of the signal, inquiring the first binding relationship according to the service type information, determining the signal receiving mode of the current signal, inquiring the second binding relationship according to the signal transmitting terminal identification information if the signal receiving mode of the current signal is determined to be the multi-antenna receiving mode, and determining the diversity combining mode of the current signal.
2. The signal receiving processing mode selecting method of claim 1, further comprising, before parsing the currently received signal:
in the initial signal reception mode, signals are independently received through a single antenna.
3. The method as claimed in claim 2, wherein after querying the second binding relationship according to the signal transmitting end identification information and determining the diversity combining mode of the current signal, the method further comprises:
and after the signal corresponding to the service type is received, recovering the initial signal receiving mode, and independently receiving the signal through the single antenna.
4. The signal reception processing mode selection method at a signal reception end according to claim 2, further comprising, before independently receiving signals through a single antenna:
and obtaining a signal receiving performance test result of each antenna through a signal receiving performance test, and selecting one antenna to receive signals in the initial signal receiving mode based on the signal receiving performance test result.
5. The method as claimed in claim 1, wherein after querying the first binding relationship according to the service type information and determining the signal receiving mode of the current signal, the method further comprises:
detecting a signal quality parameter of the current signal in real time if the signal receiving mode of the current signal is a single-antenna receiving mode;
and when the signal quality parameter is detected to be lower than a preset parameter threshold value for a continuously set number of times, switching the current signal receiving mode into a multi-antenna receiving mode.
6. The method as claimed in claim 1, wherein after querying the second binding relationship according to the signal transmitting end identification information and determining the diversity combining mode of the current signal, the method further comprises:
randomly extracting a set number of signals received corresponding to the service types, and carrying out signal combination by using each diversity combination mode according to a plurality of signal copies of each signal to obtain corresponding combined signals;
performing signal combination performance evaluation of each diversity combination mode based on the combination signal to obtain a corresponding combination performance evaluation result;
and judging whether to switch the diversity combining mode of the current signal or not based on the combining performance evaluation result.
7. The method as claimed in claim 6, further comprising, after determining whether to switch the diversity combining mode of the current signal based on the combining performance evaluation result, the step of:
and if the diversity combining mode of the current signal is judged to be switched, unbinding the second binding relationship, and rebinding the second binding relationship based on the switched diversity combining mode.
8. A signal receiving processing mode selection apparatus at a signal receiving end, comprising:
the first binding module is used for configuring corresponding signal receiving modes for different service types in advance and constructing a first binding relationship between the service types and the signal receiving modes, wherein the signal receiving modes comprise a single-antenna receiving mode and a multi-antenna receiving mode;
the second binding module is used for receiving test signals transmitted by each fixed signal transmitting end through multi-antenna diversity in advance, performing performance evaluation of different diversity combining modes based on the test signals, and constructing a second binding relationship between each signal transmitting end and the corresponding diversity combining mode according to a performance evaluation result, wherein the diversity combining modes comprise a selective combining mode, a maximum ratio combining mode and an equal gain combining mode;
a determining module, configured to analyze a currently received signal, extract service type information and signal transmitting end identification information of the signal, query the first binding relationship according to the service type information, determine the signal receiving mode of the current signal, query the second binding relationship according to the signal transmitting end identification information if it is determined that the signal receiving mode of the current signal is the multi-antenna receiving mode, and determine a diversity combining mode of the current signal.
9. An electronic device, comprising:
a memory and one or more processors;
the memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the signal reception processing mode selection method at the signal reception end according to any one of claims 1 to 7.
10. A storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform the signal reception processing mode selection method of the signal receiving end according to any one of claims 1 to 7.
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