CN112532288B - Diversity combining selection method and device for gateway of Internet of things - Google Patents
Diversity combining selection method and device for gateway of Internet of things Download PDFInfo
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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
- H04B7/0837—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]
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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
- H04B7/0874—Hybrid systems, i.e. switching and combining using subgroups of receive antennas
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Abstract
The embodiment of the application discloses a diversity combining selection method and device for an Internet of things gateway. According to the technical scheme, in the initial signal receiving mode, the real-time signals sent by the corresponding Internet of things terminal are received through the single antenna, the Internet of things terminal identification information of the real-time signals is analyzed, the binding relation is inquired based on the Internet of things terminal identification information, the corresponding second antenna combination is determined, and diversity receiving and combination of the signals sent by the current Internet of things terminal are carried out based on the corresponding second antenna combination. By adopting the technical means, the signal transmission quality between the gateway and the terminal of the Internet of things can be improved, and the signal receiving performance of the gateway of the Internet of things is optimized.
Description
Technical Field
The embodiment of the application relates to the technical field of Internet of things, in particular to a diversity combining selection method and device for an Internet of things gateway.
Background
At present, the technology of the internet of things is applied to building a communication network in various fields in life. Generally, in the internet of things systems in these fields, various wireless networking methods are generally used to perform networking within a certain area, and then several data concentrators or intelligent gateways are arranged at appropriate positions. However, in an internet of things system with a large network coverage and a relatively long communication distance, when a gateway of the internet of things system receives signals transmitted by each internet of things terminal, the gateway is affected by deep signal fading, and situations such as instability of the received signals and poor signal quality are easily caused.
Disclosure of Invention
The embodiment of the application provides a diversity combining selection method and device for an Internet of things gateway, which can improve the signal transmission quality between the gateway and an Internet of things terminal and optimize the signal receiving performance of the Internet of things gateway.
In a first aspect, an embodiment of the present application provides a diversity combining and selecting method for an internet of things gateway, including:
the method comprises the steps that an Internet of things gateway receives multiple test signal copies corresponding to the same test signal through multiple diversity antennas, and the test signal is sent by an Internet of things terminal at continuous multiple set time nodes at fixed time;
screening a first set number of the test signal copies for signal combination based on a first signal quality parameter of each test signal copy to obtain a combined signal corresponding to each time node;
determining a plurality of corresponding first antenna combinations based on the test signal copies used by the combined signals, counting the use times of the diversity antennas based on the first antenna combinations, selecting a second set number of diversity antennas with the maximum use times as corresponding second antenna combinations according to the use time sequence, binding the second antenna combinations with the corresponding terminals of the internet of things, generating a binding relationship, and storing the binding relationship;
in an initial signal receiving mode, receiving a corresponding real-time signal sent by the Internet of things terminal through a single antenna, analyzing the Internet of things terminal identification information of the real-time signal, inquiring the binding relation based on the Internet of things terminal identification information, determining a corresponding second antenna combination, and performing diversity reception and combination of the current signals sent by the Internet of things terminal based on the corresponding second antenna combination.
Further, determining the corresponding second antenna combination, and after performing diversity reception and combining on the signal sent by the terminal of the internet of things currently based on the corresponding second antenna combination, the method further includes:
extracting the combined signal corresponding to the terminal of the Internet of things for signal detection, and determining a corresponding second signal quality parameter;
and when the second signal quality parameter is detected to be lower than a set parameter threshold value by the continuous set times, performing diversity reception on the signals sent by the terminal of the Internet of things by using all the diversity antennas, and performing signal combination based on a plurality of signal copies received in the diversity reception mode.
Further, the signal combining based on the multiple signal copies received in diversity includes:
and screening a plurality of signal copies according to the first signal quality parameter to carry out signal combination.
Further, after screening a plurality of signal copies according to the first signal quality parameter for signal combination, the method further includes:
and determining the corresponding diversity antenna according to the screened signal copies to form a new second antenna combination, and modifying the corresponding binding relation based on the new second antenna combination.
Further, determining the corresponding second antenna combination, and after performing diversity reception and combining on the signal sent by the terminal of the internet of things currently based on the corresponding second antenna combination, the method further includes:
and extracting the combined signal corresponding to the terminal of the Internet of things for signal detection, determining a corresponding second signal quality parameter, and increasing or decreasing the diversity antenna based on the second signal quality parameter to perform diversity reception of the signal sent by the terminal of the Internet of things currently.
Further, screening a first set number of the test signal copies for signal combination based on a first signal quality parameter of each of the test signal copies includes:
determining the first signal quality parameter based on a corresponding signal received power, signal received strength, channel instantaneous quality value, and/or interfering signal strength.
Further, selecting a second set number of diversity antennas with the largest number of times of use as a corresponding second antenna combination according to the use time sequence, binding the second antenna combination with the corresponding internet of things terminal, generating a binding relationship, and storing the binding relationship, further comprising:
and receiving terminal replacement information of the Internet of things, and modifying the corresponding binding relationship according to the terminal replacement information of the Internet of things.
In a second aspect, an embodiment of the present application provides a diversity combining and selecting apparatus for an internet of things gateway, including:
the system comprises a receiving module, a receiving module and a processing module, wherein the receiving module is used for receiving a plurality of test signal copies corresponding to the same test signal through a plurality of diversity antennas, and the test signal is sent by an Internet of things terminal at a plurality of continuous set time nodes at fixed time;
a merging module, configured to screen a first set number of the test signal copies for signal merging based on a first signal quality parameter of each of the test signal copies, so as to obtain a merged signal corresponding to each of the time nodes;
a binding module, configured to determine multiple corresponding first antenna combinations based on the test signal copies used by the combined signals, count the number of times of use of each diversity antenna based on the first antenna combinations, select a second set number of diversity antennas with the largest number of times of use according to the use number sequence, as corresponding second antenna combinations, bind the second antenna combinations with the corresponding internet of things terminals, generate a binding relationship, and store the binding relationship;
and the query module is used for receiving the corresponding real-time signals sent by the Internet of things terminal through a single antenna in an initial signal receiving mode, analyzing the Internet of things terminal identification information of the real-time signals, querying the binding relationship based on the Internet of things terminal identification information, determining the corresponding second antenna combination, and performing diversity reception and combination of the signals sent by the Internet of things terminal currently based on the corresponding second antenna combination.
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 executed by the one or more processors, cause the one or more processors to implement the method for diversity combining and selecting for an internet of things gateway 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 method for diversity combining selection of an internet of things gateway according to the first aspect.
According to the embodiment of the application, a plurality of diversity antennas are used for receiving a plurality of test signal copies corresponding to the same test signal, a first set number of test signal copies are screened based on a first signal quality parameter of each test signal copy for signal combination, combined signals corresponding to each time node are obtained, a plurality of corresponding first antenna combinations are determined based on each test signal copy used by each combined signal, the using times of each diversity antenna are counted based on each first antenna combination, a second set number of diversity antennas with the largest using times are selected according to the using times sequence to serve as corresponding second antenna combinations, the second antenna combinations are bound with corresponding Internet of things terminals, and binding relations are generated and stored. And then, in an initial signal receiving mode, receiving a real-time signal sent by a corresponding terminal of the Internet of things through a single antenna, analyzing the terminal identification information of the Internet of things of the real-time signal, inquiring the binding relationship based on the terminal identification information of the Internet of things, determining a corresponding second antenna combination, and performing diversity reception and combination of the signal sent by the current terminal of the Internet of things based on the corresponding second antenna combination. By adopting the technical means, the signal transmission quality between the gateway and the terminal of the Internet of things can be improved, and the signal receiving performance of the gateway of the Internet of things is optimized.
Drawings
Fig. 1 is a flowchart of a diversity combining and selecting method for an internet of things gateway according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of an internet of things gateway in the first embodiment of the present application;
fig. 3 is a schematic communication diagram of an internet of things gateway and an internet of things terminal in the first embodiment of the present application;
FIG. 4 is a flowchart illustrating a combined signal detection according to a first embodiment of the present application;
fig. 5 is a flowchart of diversity reception and combining of signals according to a binding relationship constructed in advance according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a diversity combining and selecting apparatus of an internet of things gateway 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 diversity combining and selecting method for an internet of things gateway according to an embodiment of the present disclosure, where the diversity combining and selecting method for an internet of things gateway provided in this embodiment may be executed by a diversity combining and selecting device for an internet of things gateway, the diversity combining and selecting device for an internet of things gateway may be implemented in a software and/or hardware manner, and the diversity combining and selecting device for an internet of things gateway may be formed by two or more physical entities or may be formed by one physical entity. Generally, the diversity combining and selecting device of the internet of things gateway can be a communication relay device such as the internet of things gateway.
The following description will be given by taking the diversity combining and selecting device of the internet of things as an example of a main body for executing the diversity combining and selecting method of the internet of things gateway. Referring to fig. 1, the diversity combining and selecting method of the internet of things gateway specifically includes:
s110, the Internet of things gateway receives multiple test signal copies corresponding to the same test signal through multiple diversity antennas, and the test signal is sent by the Internet of things terminal at continuous multiple set time nodes at fixed time.
The diversity combining and selecting method for the internet of things gateway provided by the embodiment of the application aims to determine the diversity antenna combination bound by each internet of things terminal in advance through signal testing, and define the diversity antenna combination as the second antenna combination, so that the diversity antenna for receiving the signal sent by each internet of things terminal can be selected subsequently according to the binding relationship. It can be understood that, based on the signal test result, it is determined that the signals sent by the corresponding terminals of the internet of things are received and combined in diversity by using the second antenna combination, the signal receiving performance is optimal, and a better signal transmission effect can be obtained. Therefore, by predetermining the second antenna combination of each internet of things terminal, when the internet of things gateway receives the signals sent by each internet of things terminal, the internet of things gateway receives the combined signals through the adaptive selection diversity antenna to achieve a good signal transmission effect.
For example, referring to fig. 2, a schematic structural diagram of an internet of things gateway according to an embodiment of the present application is provided, where the internet of things gateway is provided with N diversity antennas and corresponding receivers, and each diversity antenna and corresponding receiver are used for receiving a signal of a corresponding signal branch (i.e., channel). The signals are transmitted to a processor through respective receivers, and the processor is generally a baseband processor, and is used for processing respective diversity signals and combining the diversity signals, so as to implement signal diversity reception and combination of the internet of things gateway. It can be understood that, when a signal is sent to the gateway of the internet of things, the terminal of the internet of things generates multiple signal copies corresponding to the same signal through multipath fading. And when the gateway of the internet of things receives signals, if a multi-antenna receiving mode is adopted for receiving the signals, each signal copy is independently received through each antenna, so that diversity reception of the signals is completed, and signal combination is performed based on a plurality of signal copies. If a single antenna is used for signal reception, the signal is received through the single antenna and directly processed. Further, referring to fig. 3, during the signal test, in a communication range of the internet of things gateway 11, the internet of things gateway 11 receives the test signal sent by each internet of things terminal 12. And receiving a plurality of test signal copies corresponding to the test signals by adopting a multi-antenna diversity receiving mode corresponding to one end of the internet of things gateway 11. At this time, the internet of things gateway 11 uses all diversity antennas to independently receive each test signal copy, so that a plurality of test signal copies corresponding to one internet of things terminal at a designated time node can be obtained. It should be noted that, during signal testing, the terminal of the internet of things sends a test signal at a plurality of continuous set time nodes, and the gateway of the internet of things receives a plurality of test signal copies through all antenna diversity, corresponding to one test signal. The internet of things gateway receives multiple sets of corresponding test signal copies corresponding to the test signals sent by the multiple set time nodes.
By analogy, when signal testing is carried out, each Internet of things terminal sends a test signal to the Internet of things gateway at a plurality of continuous set time nodes at fixed time, and then the Internet of things gateway receives a plurality of groups of test signal copies corresponding to each physical network terminal.
S120, screening a first set number of the test signal copies for signal combination based on the first signal quality parameters of the test signal copies to obtain combined signals corresponding to the time nodes.
Further, corresponding to each test signal copy of one test signal, the embodiment of the present application performs signal combination by screening the test signal copies to obtain a combined signal corresponding to each time node to send the test signal. Specifically, corresponding to a plurality of test signal copies of a test signal, in the embodiment of the present application, a signal quality parameter of each test signal copy is measured and calculated, and the signal quality parameter is defined as a first signal quality parameter. And screening each test signal copy based on the first signal quality parameter, and further screening partial signal copies to perform signal combination to obtain corresponding combined signals. Wherein the first signal quality parameter is determined based on the corresponding signal received power, signal received strength, channel instantaneous quality value and/or interfering signal strength. 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 first signal quality parameter, a first signal quality parameter calculation formula is provided to quantize the signal quality of the test signal copy, and the first signal quality parameter calculation formula is:
f＝ω1P+ω2d1+ω3h+ω4d2
wherein f is the first signal quality parameter, P is the signal receiving power, d1For signal received strength, h is the instantaneous quality value of the channel, d2For interfering signal strength, omega1，ω2，ω3And ω4The impact factors are determined according to actual tests and can be set according to actual impact of various types of parameters on the first signal quality parameter. Based on the first signal quality parameter calculation formula, the first signal quality parameter of each test signal copy 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 copy, and a corresponding quantization formula is set accordingly. The above formula is only one calculation method for calculating the first signal quality parameter 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 repeated herein.
Furthermore, according to the first signal quality parameter of each test signal copy, a first set number of test signal copies are screened from large to small according to the first signal quality parameter value, and the test signal copies are subjected to signal combination to obtain a corresponding combined signal. The method is adopted for screening and combining the test signal copies of each test signal, so that combined signals of the test signals sent by the terminals of the internet of things at the corresponding time points can be obtained. It will be appreciated that the signal quality of the combined signal may be guaranteed by signal combining preferably with test signal copies of relatively high signal quality.
S130, determining a plurality of corresponding first antenna combinations based on the test signal copies used by the combined signals, counting the use times of the diversity antennas based on the first antenna combinations, selecting a second set number of diversity antennas with the largest use times as corresponding second antenna combinations according to the use time sequence, binding the second antenna combinations with the corresponding terminals of the Internet of things, generating a binding relationship, and storing the binding relationship.
Further, based on the merged signal obtained in step S120, the embodiment of the present application further performs construction of a binding relationship based on the merged signal. The internet of things gateway obtains a corresponding number of combined signals through signal copy screening and combining corresponding to a plurality of test signals sent by one internet of things terminal, and determines a corresponding first antenna combination based on the combined signals. It will be appreciated that each combined signal includes a first set number of test signal copies, and each test signal copy is received by a corresponding diversity antenna, and by determining the diversity antenna to which each test signal copy belongs, the set of these antennas is the first antenna combination to which the combined signal corresponds. And counting the use times of each diversity antenna in the first antenna combination corresponding to each combined signal of the terminal of the internet of things corresponding to the terminal of the internet of things, and sequencing each diversity antenna according to the use times. And a second set number of diversity antennas with the largest number of times of use are extracted to form a second antenna combination. It can be understood that the first antenna combination is filtered according to the first signal quality parameter measurement, and the signal receptivity of each diversity antenna is relatively good. Then, by counting the number of times of using the diversity antenna, if the number of times of using the diversity antenna is greater, the signal receiving performance of the diversity antenna for receiving the test signal copies at each corresponding time node is relatively good, the signal receiving stability is relatively high, and the corresponding second antenna combination can be determined based on the characteristic.
Further, based on a second antenna combination determined by a plurality of test signals (corresponding to different set time nodes) of the terminal of the internet of things, the terminal of the internet of things and the second antenna combination are bound, and a binding relationship is established and stored. The binding relationship is used for recording a second antenna combination used for receiving a signal sent by the corresponding internet of things terminal. It can be understood that, according to the signal test result, the signals sent by the terminals of the corresponding internet of things are received and combined through the second antenna combination diversity, and a better signal transmission effect can be obtained. Based on this, the embodiment of the application constructs the binding relationship, so as to optimize the receiving performance of each internet of things gateway for receiving each internet of things terminal signal.
In one embodiment, based on the pre-stored binding relationship, when the corresponding internet of things terminal in the internet of things system sends a replacement (such as a replacement of equipment damage or upgrade), the corresponding internet of things terminal replacement information is sent to the internet of things gateway. And one end corresponding to the gateway of the Internet of things receives the terminal replacement information of the Internet of things and modifies the corresponding binding relationship according to the terminal replacement information of the Internet of things. Specifically, the internet of things terminal replacement information comprises original internet of things terminal information and newly replaced internet of things terminal information, the internet of things gateway determines a corresponding binding relationship according to the original internet of things terminal information, modifies the binding relationship according to the newly replaced internet of things terminal information, and replaces the original internet of things terminal information in the binding relationship with the newly replaced internet of things terminal information. Therefore, the binding relationship can be conveniently and quickly established after the terminal of the Internet of things is replaced, and the signal receiving and processing efficiency is improved.
S140, receiving the corresponding real-time signal sent by the Internet of things terminal through a single antenna in an initial signal receiving mode, analyzing the Internet of things terminal identification information of the real-time signal, inquiring the binding relationship based on the Internet of things terminal identification information, determining the corresponding second antenna combination, and performing diversity reception and combination of the current signals sent by the Internet of things terminal based on the corresponding second antenna combination.
After the binding relationship is established, the antennas are selected based on the binding relationship to receive and combine signals sent by the terminals of the corresponding internet of things. When receiving signals, the gateway of the internet of things receives signals sent by all terminals of the internet of things in an initial signal receiving mode. In the initial signal receiving mode, the gateway of the Internet of things starts a single antenna to receive signals, and energy consumption can be saved by adopting the single antenna to receive the signals. Furthermore, after the antenna receives a real-time signal sent by a certain internet of things terminal, the real-time signal is analyzed, and the internet of things terminal identification information of the signal is extracted. In order to ensure the signal receiving performance of receiving the signals sent by the internet of things terminal next time, the pre-stored binding relationship needs to be queried according to the identification information of the internet of things terminal, a corresponding second antenna combination is determined based on the binding relationship, and the diversity antennas corresponding to the second antenna combination are started to receive and combine the signals sent by the internet of things terminal, so that the good signal receiving performance of the internet of things gateway is ensured, and the signal transmission effect is optimized.
Further, after that, based on the combined signal obtained by combining the multiple diversity antennas with the second antenna to perform signal diversity reception and combining, the embodiment of the present application further detects the combined signal and determines whether the signal quality of the combined signal meets the standard. Referring to fig. 4, the merged signal detection process includes:
s1501, extracting the combined signal corresponding to the terminal of the Internet of things for signal detection, and determining a corresponding second signal quality parameter;
s1502, when detecting that the second signal quality parameter is lower than the set parameter threshold for the consecutive set times, performing diversity reception on the signal transmitted by the terminal of the internet of things using all the diversity antennas, and performing signal combining based on multiple signal copies received in diversity.
Specifically, when determining the second signal quality parameter of the combined signal, the first signal quality parameters of the signal copies corresponding to the combined signal are determined with reference to the calculation formula of the first signal quality parameters, and the first signal quality parameters are superposed to obtain an average value, so as to obtain the second signal quality parameter. And comparing the second signal quality parameter with a preset parameter threshold, wherein if the second signal quality parameter is lower than the parameter threshold, the signal quality of the current combined signal is not up to the standard. And when the second signal quality parameter is detected to be lower than the set parameter threshold value by the continuous set times, the situation that the signal quality of the current second antenna combination diversity reception combined signal is not up to the standard continuously is shown. Then, in order to ensure the signal receiving performance, all diversity antennas of the gateway of the internet of things are started to receive signals.
Furthermore, based on the signals received by all diversity antennas, when signal combination is performed, a plurality of signal copies are screened according to the first signal quality parameter for signal combination. It can be understood that by screening the signal copies with relatively good signal quality to perform signal combination, the signal combination efficiency can be improved, and the signal quality of the combined signal can be ensured.
Furthermore, after the current signal combination is completed, in the embodiment of the present application, the corresponding diversity antenna is further determined according to the screened multiple signal copies to form a new second antenna combination, and the corresponding binding relationship is modified based on the new second antenna combination. And the binding relationship is modified, and the new second antenna combination is replaced, so that when the signal sent by the terminal of the Internet of things is received subsequently, the new second antenna combination is utilized to carry out diversity reception and combination of the signal, and the signal transmission effect is further optimized.
In one embodiment, a plurality of diversity antennas are combined based on a second antenna to perform signal diversity reception and combined to obtain a combined signal, the combined signal corresponding to the terminal of the internet of things is extracted to perform signal detection, a corresponding second signal quality parameter is determined, and the diversity antennas are increased or decreased based on the second signal quality parameter to perform diversity reception of a signal currently transmitted by the terminal of the internet of things. Different from the above method of re-determining the second antenna combination, a combined signal obtained by real-time diversity combining is analyzed and compared, if the second signal quality parameter of the combined signal does not reach the standard, a plurality of diversity antennas are added on the basis of the second antenna combination, so that the signal receiving performance is improved, and the signal transmission effect is ensured. On the contrary, if the second signal quality parameter of the combined signal is relatively good and is higher than the preset parameter value, the current signal receiving performance is considered to overflow, and partial antennas of the second antenna combination can be appropriately dormant, so that the power consumption of the gateway of the internet of things is saved while the signal transmission effect is ensured.
Referring to fig. 5, the combined signals are screened through signal testing, a corresponding second antenna combination is determined according to the combined signals, and a binding relationship between the second antenna combination and the internet of things terminal is established, that is, the second antenna combination is determined to perform diversity reception and combination of signals by receiving real-time signals and inquiring the binding relationship.
The multiple test signal copies corresponding to the same test signal are received through the multiple diversity antennas, a first set number of test signal copies are screened based on a first signal quality parameter of each test signal copy to perform signal combination, combined signals corresponding to each time node are obtained, multiple corresponding first antenna combinations are determined based on each test signal copy used by each combined signal, the number of times of use of each diversity antenna is counted based on each first antenna combination, a second set number of diversity antennas with the largest number of times of use are selected according to the number of times of use sequencing to serve as corresponding second antenna combinations, the second antenna combinations are bound with corresponding internet of things terminals, and binding relations are generated and stored. And then, in an initial signal receiving mode, receiving a real-time signal sent by a corresponding terminal of the Internet of things through a single antenna, analyzing the terminal identification information of the Internet of things of the real-time signal, inquiring the binding relationship based on the terminal identification information of the Internet of things, determining a corresponding second antenna combination, and performing diversity reception and combination of the signal sent by the current terminal of the Internet of things based on the corresponding second antenna combination. By adopting the technical means, the signal transmission quality between the gateway and the terminal of the Internet of things can be improved, and the signal receiving performance of the gateway of the Internet of things is optimized.
Example two:
on the basis of the foregoing embodiments, fig. 6 is a schematic structural diagram of a diversity combining and selecting apparatus for an internet of things gateway according to a second embodiment of the present application. Referring to fig. 6, the diversity combining and selecting apparatus for an internet of things gateway provided in this embodiment specifically includes: a receiving module 21, a merging module 22, a binding module 23 and a query module 24.
The receiving module 21 is configured to receive multiple test signal copies corresponding to the same test signal through multiple diversity antennas, where the test signal is sent by the terminal of the internet of things at multiple consecutive set time nodes at regular time;
the merging module 22 is configured to screen a first set number of the test signal copies for signal merging based on a first signal quality parameter of each test signal copy, so as to obtain a merged signal corresponding to each time node;
the binding module 23 is configured to determine a plurality of corresponding first antenna combinations based on the test signal copies used by the combined signals, count the number of times of use of each diversity antenna based on the first antenna combinations, select a second set number of diversity antennas with the largest number of times of use according to the use number sequence as corresponding second antenna combinations, bind the second antenna combinations with the corresponding internet of things terminals, generate a binding relationship, and store the binding relationship;
the query module 24 is configured to receive, in an initial signal receiving mode, a corresponding real-time signal sent by the internet of things terminal through a single antenna, analyze the internet of things terminal identification information of the real-time signal, query the binding relationship based on the internet of things terminal identification information, determine a corresponding second antenna combination, and perform diversity reception and combining of the current signal sent by the internet of things terminal based on the corresponding second antenna combination.
The multiple test signal copies corresponding to the same test signal are received through the multiple diversity antennas, a first set number of test signal copies are screened based on a first signal quality parameter of each test signal copy to perform signal combination, combined signals corresponding to each time node are obtained, multiple corresponding first antenna combinations are determined based on each test signal copy used by each combined signal, the number of times of use of each diversity antenna is counted based on each first antenna combination, a second set number of diversity antennas with the largest number of times of use are selected according to the number of times of use sequencing to serve as corresponding second antenna combinations, the second antenna combinations are bound with corresponding internet of things terminals, and binding relations are generated and stored. And then, in an initial signal receiving mode, receiving a real-time signal sent by a corresponding terminal of the Internet of things through a single antenna, analyzing the terminal identification information of the Internet of things of the real-time signal, inquiring the binding relationship based on the terminal identification information of the Internet of things, determining a corresponding second antenna combination, and performing diversity reception and combination of the signal sent by the current terminal of the Internet of things based on the corresponding second antenna combination. By adopting the technical means, the signal transmission quality between the gateway and the terminal of the Internet of things can be improved, and the signal receiving performance of the gateway of the Internet of things is optimized.
The diversity combining and selecting device for the internet of things gateway provided by the second embodiment of the present application can be used for executing the diversity combining and selecting method for the internet of things gateway provided by 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 diversity combining selection method of the internet of things gateway according to any embodiment of the present application (for example, the receiving module, the combining module, the binding module, and the query module in the diversity combining selection apparatus of the internet of things gateway). 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, so as to implement the diversity combining and selecting method for the internet of things gateway.
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 by the embodiment can be used for executing the diversity combining and selecting method of the internet of things gateway provided by the embodiment, and has corresponding functions and beneficial effects.
Example four:
embodiments of the present application further provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform a method for diversity combining selection of an internet of things gateway, where the method for diversity combining selection of an internet of things gateway includes: the method comprises the steps that an Internet of things gateway receives multiple test signal copies corresponding to the same test signal through multiple diversity antennas, and the test signal is sent by an Internet of things terminal at continuous multiple set time nodes at fixed time;
screening a first set number of the test signal copies for signal combination based on a first signal quality parameter of each test signal copy to obtain a combined signal corresponding to each time node; determining a plurality of corresponding first antenna combinations based on the test signal copies used by the combined signals, counting the use times of the diversity antennas based on the first antenna combinations, selecting a second set number of diversity antennas with the maximum use times as corresponding second antenna combinations according to the use time sequence, binding the second antenna combinations with the corresponding terminals of the internet of things, generating a binding relationship, and storing the binding relationship; in an initial signal receiving mode, receiving a corresponding real-time signal sent by the Internet of things terminal through a single antenna, analyzing the Internet of things terminal identification information of the real-time signal, inquiring the binding relation based on the Internet of things terminal identification information, determining a corresponding second antenna combination, and performing diversity reception and combination of the current signals sent by the Internet of things terminal based on the corresponding second antenna combination.
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 diversity combining selection method of the internet of things gateway described above, and may also perform related operations in the diversity combining selection method of the internet of things gateway provided in any embodiment of the present application.
The diversity combining and selecting apparatus, the storage medium, and the electronic device of the internet of things gateway provided in the foregoing embodiments may execute the diversity combining and selecting method of the internet of things gateway provided in any embodiment of the present application, and reference may be made to the diversity combining and selecting method of the internet of things gateway 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 diversity combining selection method for an Internet of things gateway is characterized by comprising the following steps:
the method comprises the steps that an Internet of things gateway receives multiple test signal copies corresponding to the same test signal through multiple diversity antennas, and the test signal is sent by an Internet of things terminal at continuous multiple set time nodes at fixed time;
screening a first set number of the test signal copies for signal combination based on a first signal quality parameter of each test signal copy to obtain a combined signal corresponding to each time node;
determining a plurality of corresponding first antenna combinations based on the test signal copies used by the combined signals, counting the use times of the diversity antennas based on the first antenna combinations, selecting a second set number of diversity antennas with the maximum use times as corresponding second antenna combinations according to the use time sequence, binding the second antenna combinations with the corresponding terminals of the internet of things, generating a binding relationship, and storing the binding relationship;
in an initial signal receiving mode, receiving a corresponding real-time signal sent by the Internet of things terminal through a single antenna, analyzing the Internet of things terminal identification information of the real-time signal, inquiring the binding relation based on the Internet of things terminal identification information, determining a corresponding second antenna combination, and performing diversity reception and combination of the current signals sent by the Internet of things terminal based on the corresponding second antenna combination.
2. The method for diversity combining selection of an internet of things gateway of claim 1, wherein the determining of the corresponding second antenna combination and the diversity reception and combining of the signal currently transmitted by the terminal of the internet of things based on the corresponding second antenna combination further comprises:
extracting the combined signal corresponding to the terminal of the Internet of things for signal detection, and determining a corresponding second signal quality parameter;
and when the second signal quality parameter is detected to be lower than a set parameter threshold value by the continuous set times, performing diversity reception on the signals sent by the terminal of the Internet of things by using all the diversity antennas, and performing signal combination based on a plurality of signal copies received in the diversity reception mode.
3. The method for diversity combining selection of an internet of things gateway as claimed in claim 2, wherein the signal combining based on the plurality of signal copies received in diversity comprises:
and screening a plurality of signal copies according to the first signal quality parameter to carry out signal combination.
4. The method as claimed in claim 3, further comprising, after the selecting the signal copies for signal combining according to the first signal quality parameter, the step of:
and determining the corresponding diversity antenna according to the screened signal copies to form a new second antenna combination, and modifying the corresponding binding relation based on the new second antenna combination.
5. The method for diversity combining selection of an internet of things gateway of claim 1, wherein the determining of the corresponding second antenna combination and the diversity reception and combining of the signal currently transmitted by the terminal of the internet of things based on the corresponding second antenna combination further comprises:
and extracting the combined signal corresponding to the terminal of the Internet of things for signal detection, determining a corresponding second signal quality parameter, and increasing or decreasing the diversity antenna based on the second signal quality parameter to perform diversity reception of the signal sent by the terminal of the Internet of things currently.
6. The method for diversity combining selection of an internet of things gateway as claimed in claim 1, wherein screening a first set number of the test signal copies for signal combining based on the first signal quality parameter of each test signal copy comprises:
determining the first signal quality parameter based on a corresponding signal received power, signal received strength, channel instantaneous quality value, and/or interfering signal strength.
7. The method for diversity combining and selecting of an internet of things gateway according to claim 1, wherein after selecting a second set number of diversity antennas with the largest number of times of use as corresponding second antenna combinations according to the ranking of the number of times of use, binding the second antenna combinations with the corresponding terminals of the internet of things, generating a binding relationship, and storing, further comprising:
and receiving terminal replacement information of the Internet of things, and modifying the corresponding binding relationship according to the terminal replacement information of the Internet of things.
8. The utility model provides a diversity of thing networking gateway merges selection device which characterized in that includes:
the system comprises a receiving module, a receiving module and a processing module, wherein the receiving module is used for receiving a plurality of test signal copies corresponding to the same test signal through a plurality of diversity antennas, and the test signal is sent by an Internet of things terminal at a plurality of continuous set time nodes at fixed time;
a merging module, configured to screen a first set number of the test signal copies for signal merging based on a first signal quality parameter of each of the test signal copies, so as to obtain a merged signal corresponding to each of the time nodes;
a binding module, configured to determine multiple corresponding first antenna combinations based on the test signal copies used by the combined signals, count the number of times of use of each diversity antenna based on the first antenna combinations, select a second set number of diversity antennas with the largest number of times of use according to the use number sequence, as corresponding second antenna combinations, bind the second antenna combinations with the corresponding internet of things terminals, generate a binding relationship, and store the binding relationship;
and the query module is used for receiving the corresponding real-time signals sent by the Internet of things terminal through a single antenna in an initial signal receiving mode, analyzing the Internet of things terminal identification information of the real-time signals, querying the binding relationship based on the Internet of things terminal identification information, determining the corresponding second antenna combination, and performing diversity reception and combination of the signals sent by the Internet of things terminal currently based on the corresponding second antenna combination.
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 method for diversity combining selection for an internet of things gateway as recited in any of claims 1-7.
10. A storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform the method for diversity combining selection for an internet of things gateway as claimed in any one of claims 1 to 7.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102204320A (en) * | 2008-10-30 | 2011-09-28 | 爱立信电话股份有限公司 | Method and receiver for estimating and reporting a channel quality measure |
| CN102970778A (en) * | 2012-11-01 | 2013-03-13 | 中国联合网络通信有限公司物联网研究院 | Internet of things converged communication gateway for supporting ubiquitous machine to machine protocol (UMMP) |
| CN104081688A (en) * | 2011-12-16 | 2014-10-01 | 高通股份有限公司 | Receive antenna selection/combining of receive antennas using fewer number of receive chains |
| US10601472B2 (en) * | 2017-11-14 | 2020-03-24 | T-Mobile Usa, Inc. | Systems and methods for improving cell-edge receiver performance |
-
2020
- 2020-11-17 CN CN202011290745.8A patent/CN112532288B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102204320A (en) * | 2008-10-30 | 2011-09-28 | 爱立信电话股份有限公司 | Method and receiver for estimating and reporting a channel quality measure |
| CN104081688A (en) * | 2011-12-16 | 2014-10-01 | 高通股份有限公司 | Receive antenna selection/combining of receive antennas using fewer number of receive chains |
| CN102970778A (en) * | 2012-11-01 | 2013-03-13 | 中国联合网络通信有限公司物联网研究院 | Internet of things converged communication gateway for supporting ubiquitous machine to machine protocol (UMMP) |
| US10601472B2 (en) * | 2017-11-14 | 2020-03-24 | T-Mobile Usa, Inc. | Systems and methods for improving cell-edge receiver performance |
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