CN110875789B - Multi-antenna platform capability test method and device - Google Patents
Multi-antenna platform capability test method and device Download PDFInfo
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- CN110875789B CN110875789B CN201810993908.5A CN201810993908A CN110875789B CN 110875789 B CN110875789 B CN 110875789B CN 201810993908 A CN201810993908 A CN 201810993908A CN 110875789 B CN110875789 B CN 110875789B
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Abstract
The embodiment of the invention provides a method and a device for testing the capability of a multi-antenna platform, wherein the method comprises the following steps: acquiring downlink data issued by a terminal, determining a radio frequency channel corresponding to each downlink data according to a preset channel mapping coefficient, sending the downlink data to the terminal through the corresponding radio frequency channel, and executing a downlink service to acquire a platform capability test result; and under the empty environment formed by connecting the terminal with the base station through a channel simulator or a phase shifter, all downlink data is sent to the terminal through each radio frequency channel, and downlink empty performance service is executed to obtain a downlink empty performance test result, so that the performance of the downlink empty is tested on the basis of the completion of platform capability test, the test method is simplified, the problem that the environment construction and the instrument use time are wasted due to the positioning of the platform capability problem in the traditional test is prevented, the labor and time cost is saved, and the test efficiency is improved.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a method and a device for testing the capability of a multi-antenna platform.
Background
One of the key technologies of 5G is the multi-antenna technology, the number of antennas of the multi-antenna system is 64/128/256 antennas or more, and the number of downlink supported streams reaches 24 streams or more.
The development of 5G multi-antenna technology also brings new challenges to the testing method. Laboratory tests 24 flow require the use of channel simulators or phase shifters to construct scenarios where different users are in different spatial locations and channel conditions.
At present, most of channel simulators and phase shifters support 16 flows at most in the downlink, and the limited situation occurs. The channel simulator or the phase shifter is used for testing, the number of radio frequency lines to be connected is large, a large amount of manpower, time and space resources are consumed in the processes of constructing an environment, calibrating an instrument, setting a model and the like, and the cost is high. And when the phase shifter or the channel simulator is used for testing, the 24 streams may not reach the empty peak speed due to the interference problem among users, so that the maximum processing capacity of the platform cannot be tested.
Disclosure of Invention
The invention provides a method and a device for testing the capability of a multi-antenna platform, which are used for solving the problem that the maximum processing capability of the platform cannot be tested by adopting a phase shifter or a channel simulator in the prior art.
In a first aspect, an embodiment of the present invention provides a method for testing a capability of a multi-antenna platform, including:
acquiring downlink data issued by a terminal;
determining a radio frequency channel corresponding to each downlink data according to a preset channel mapping coefficient;
sending the downlink data to a terminal through a corresponding radio frequency channel, and executing a downlink service to obtain a platform capability test result;
after the platform capability test is finished, if the downlink air interface performance test is determined to be performed, all downlink data is sent to the terminal through each radio frequency channel under the air interface environment formed by connecting the terminal with the base station through the channel simulator or the phase shifter, and downlink air interface performance service is executed to obtain a downlink air interface performance test result.
Optionally, the channel mapping coefficients include:
wherein r is a channel mapping coefficient, the number of rows in the matrix Z is a preset number of radio frequency channels, the number of columns in the matrix Z is a number of port streams of each terminal, and the number of rows in the matrix S is a number S of port streams of each terminal1、S2、S3、S4The matrix Z includes a matrix a having the same number as the number of terminals, and the matrix a specifies the radio frequency channels connected to the terminals.
Optionally, the downlink service includes data transmission capability of the S1 communication interface and processing capabilities of a physical layer, a media access control layer, a radio link control layer, and a packet data convergence protocol layer.
Optionally, in the process of executing the downlink service, the terminal is connected with the radio frequency channel of the base station in a coaxial direct connection manner.
In a second aspect, an embodiment of the present invention provides a device for testing capability of a multi-antenna platform, including:
the acquisition module is used for acquiring downlink data issued by the orientation terminal;
the determining module is used for determining a radio frequency channel corresponding to each downlink data according to a preset channel mapping coefficient;
the first testing module is used for sending the downlink data to a terminal through a corresponding radio frequency channel and executing downlink service to obtain a platform capability testing result;
and the second testing module is used for sending all downlink data to the terminal through each radio frequency channel under an air interface environment formed by connecting the terminal with the base station through a channel simulator or a phase shifter after the platform capacity test is finished and when the downlink air interface performance test is determined to be carried out, executing downlink air interface performance service and obtaining a downlink air interface performance test result.
Optionally, the channel mapping coefficients include:
wherein r is a channel mapping coefficient, the number of rows in the matrix Z is a preset number of radio frequency channels, the number of columns in the matrix Z is a number of port streams of each terminal, and the number of rows in the matrix S is a number S of port streams of each terminal1、S2、S3、S4The matrix Z includes a matrix a having the same number as the number of terminals, and the matrix a specifies the radio frequency channels connected to the terminals.
Optionally, the downlink service includes data transmission capability of the S1 communication interface and processing capabilities of a physical layer, a media access control layer, a radio link control layer, and a packet data convergence protocol layer.
Optionally, in the process of executing the downlink service, the terminal is connected with the radio frequency channel of the base station in a coaxial direct connection manner.
In a third aspect, an embodiment of the present invention provides an electronic device, including: a processor, a memory, a bus, and a computer program stored on the memory and executable on the processor;
the processor and the memory complete mutual communication through the bus;
the processor, when executing the computer program, implements the method as described above.
In a fourth aspect, an embodiment of the present invention provides a non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores thereon a computer program, and when executed by a processor, the computer program implements the method as described above.
As can be seen from the foregoing technical solutions, in the method and the apparatus for testing the capability of a multi-antenna platform provided in the embodiments of the present invention, downlink data sent by a terminal is obtained, a radio frequency channel corresponding to each downlink data is determined according to a preset channel mapping coefficient, the downlink data is sent to the terminal through the corresponding radio frequency channel, and a downlink service is executed to obtain a platform capability test result; and under the empty environment formed by connecting the terminal with the base station through a channel simulator or a phase shifter, all downlink data is sent to the terminal through each radio frequency channel, and downlink empty performance service is executed to obtain a downlink empty performance test result, so that the performance of the downlink empty is tested on the basis of the completion of platform capability test, the test method is simplified, the problem that the environment construction and the instrument use time are wasted due to the positioning of the platform capability problem in the traditional test is prevented, the labor and time cost is saved, and the test efficiency is improved.
Drawings
Fig. 1 is a schematic flowchart of a method for testing capability of a multi-antenna platform according to an embodiment of the present invention;
fig. 2 is a schematic diagram of connections of 6 terminals and 24 streams over 64 channels according to an embodiment of the present invention;
fig. 3 is a schematic flowchart illustrating a method for testing the capability of a multi-antenna platform according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a multi-antenna platform capability testing apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Fig. 1 shows a method for testing capability of a multi-antenna platform according to an embodiment of the present invention, including:
s11, acquiring downlink data sent to the terminal;
s12, determining a radio frequency channel corresponding to each downlink data according to a preset channel mapping coefficient;
s13, sending the downlink data to a terminal through a corresponding radio frequency channel, and executing a downlink service to obtain a platform capability test result;
and S14, after the platform capability test is finished, if the downlink air interface performance test is determined to be performed, sending all downlink data to the terminal through each radio frequency channel under the air interface environment formed by connecting the terminal with the base station through the channel simulator or the phase shifter, and executing the downlink air interface performance service to obtain a downlink air interface performance test result.
For the above-mentioned step S11-step S13, it should be noted that, in the embodiment of the present invention, the base station performs scrambling, modulation, layer mapping, precoding, and physical resource mapping on the downlink data sent to the terminal, and determines the radio frequency channel corresponding to each downlink data according to a preset channel mapping coefficient. And sending the downlink data to a terminal through a corresponding radio frequency channel, and executing a downlink service to obtain a platform capability test result. And in the process of executing the downlink service, the terminal is connected with the radio frequency channel of the base station in a coaxial line direct connection mode.
In the embodiment of the invention, the radio frequency channel corresponding to each downlink data is determined according to the preset channel mapping coefficient. Wherein the channel mapping coefficients comprise:
wherein r is a channel mapping coefficient, the number of rows in the matrix Z is a preset number of radio frequency channels, the number of columns in the matrix Z is a number of port streams of each terminal, and the number of rows in the matrix S is a number S of port streams of each terminal1、S2、S3、S4The matrix Z includes a matrix a having the same number as the number of terminals, and the matrix a specifies the radio frequency channels connected to the terminals.
The following are illustrated by specific examples:
the 24 streams of downstream data, 6 terminals, 4 streams per terminal, were tested. Terminal 1 corresponds to streams 1-4, and if it wants to map streams 1-4 on the first 4 channels, a channel mapping coefficient is used, which is a matrix formula as follows:
the 24 streams of downstream data, 6 terminals, 4 streams per terminal, were tested. Terminal 1 corresponds to streams 1-4, and if it wants to map streams 1-4 on the first 4 channels, a channel mapping coefficient is used, which is a matrix formula as follows:
the matrix specification is 64 x 4, 64 rows respectively represent 1-64 radio frequency channels, and 4 columns are self-adaptive according to the number of streams currently used by the terminal. If the peak speed test is required, the fixed number of rows is 4. The latter 4 x 1 matrix represents the number of terminal streams, where S1、S2、S3、S4Representing streams 1-4.
And for other five terminals, changing the channel mapping coefficient matrix according to the above analogy, and flexibly controlling the radio frequency channel mapped by each stream.
Fig. 2 is a schematic diagram showing connection of 6 terminals and 24 streams on 64 channels. But is not limited to such a connection.
In this embodiment, the downlink service includes data transmission capability of the S1 communication interface and processing capabilities of a physical layer, a media access control layer, a radio link control layer, and a packet data convergence protocol layer. The result of the downlink service test can be used for judging whether the processing capacity of the multi-antenna platform reaches 8 Gbps.
In this embodiment, the execution of the downlink service belongs to a mature technology, and is not described herein again.
For the step S14, it should be noted that, in the embodiment of the present invention, after the platform capability test result is obtained (that is, the downlink service is executed), if a downlink air interface performance needs to be further tested, an air interface environment formed by connecting the terminal and the base station through a channel simulator or a phase shifter is needed at this time. Under the air interface environment, the base station receives a sounding reference signal sent by the terminal to calculate a beamforming coefficient, all the downlink data are sent to the terminal through each radio frequency channel according to the beamforming coefficient, and a downlink air interface performance service is executed to obtain a downlink air interface performance test result, so that the performance of the downlink multi-stream data under different channel conditions is obtained.
As shown in fig. 3, when only the platform capability is tested, the radio frequency channel corresponding to each downlink data is determined according to the preset channel mapping coefficient; and sending the downlink data to a terminal through a corresponding radio frequency channel, and executing a downlink service to obtain a platform capability test result.
When not only the platform capability is tested, but also the downlink air interface performance is tested, after the platform capability test is finished, under the air interface environment formed by connecting the terminal with the base station through the channel simulator or the phase shifter, the base station sends all downlink data to the terminal through each radio frequency channel, and executes the downlink air interface performance service to obtain a downlink air interface performance test result.
The method for testing the capability of the multi-antenna platform, provided by the embodiment of the invention, comprises the steps of obtaining downlink data sent to a terminal, determining a radio frequency channel corresponding to each downlink data according to a preset channel mapping coefficient, sending the downlink data to the terminal through the corresponding radio frequency channel, and executing downlink service to obtain a platform capability test result; and under the empty environment formed by connecting the terminal with the base station through a channel simulator or a phase shifter, all downlink data is sent to the terminal through each radio frequency channel, and downlink empty performance service is executed to obtain a downlink empty performance test result, so that the performance of the downlink empty is tested on the basis of the completion of platform capability test, the test method is simplified, the problem that the environment construction and the instrument use time are wasted due to the positioning of the platform capability problem in the traditional test is prevented, the labor and time cost is saved, and the test efficiency is improved.
Fig. 4 shows a multi-antenna platform capability testing apparatus provided in an embodiment of the present invention, which includes an obtaining module 41, a determining module 42, a first testing module 43, and a second testing module 44, where:
an obtaining module 41, configured to obtain downlink data sent by a terminal;
a determining module 42, configured to determine, according to a preset channel mapping coefficient, a radio frequency channel corresponding to each piece of downlink data;
the first testing module 43 is configured to send the downlink data to the terminal through the corresponding radio frequency channel, and execute the downlink service to obtain a platform capability test result;
the second testing module 44 is configured to, after the platform capability test is finished, send all downlink data to the terminal through each radio frequency channel in an air interface environment formed by connecting the terminal with the base station through the channel simulator or the phase shifter, and execute a downlink air interface performance service to obtain a downlink air interface performance test result when it is determined that a downlink air interface performance test is performed.
Since the principle of the apparatus according to the embodiment of the present invention is the same as that of the method according to the above embodiment, further details are not described herein for further explanation.
It should be noted that, in the embodiment of the present invention, the relevant functional module may be implemented by a hardware processor (hardware processor)
According to the multi-antenna platform capability test device provided by the embodiment of the invention, downlink data sent to a terminal are obtained, a radio frequency channel corresponding to each downlink data is determined according to a preset channel mapping coefficient, the downlink data are sent to the terminal through the corresponding radio frequency channel, and a platform capability test result is obtained by executing downlink service; and under the empty environment formed by connecting the terminal with the base station through a channel simulator or a phase shifter, all downlink data is sent to the terminal through each radio frequency channel, and downlink empty performance service is executed to obtain a downlink empty performance test result, so that the performance of the downlink empty is tested on the basis of the completion of platform capability test, the test method is simplified, the problem that the environment construction and the instrument use time are wasted due to the positioning of the platform capability problem in the traditional test is prevented, the labor and time cost is saved, and the test efficiency is improved.
Fig. 5 shows that an embodiment of the present invention provides an electronic device, including: a processor 51, a memory 52, a bus 53 and computer programs stored on the memory and executable on the processor;
the processor and the memory complete mutual communication through the bus;
the processor, when executing the computer program, implements a method as described above, for example comprising: acquiring downlink data issued by a terminal; determining a radio frequency channel corresponding to each downlink data according to a preset channel mapping coefficient; sending the downlink data to a terminal through a corresponding radio frequency channel, and executing a downlink service to obtain a platform capability test result; after the platform capability test is finished, if the downlink air interface performance test is determined to be performed, all downlink data is sent to the terminal through each radio frequency channel under an air interface environment formed by connecting the terminal with the base station through a channel simulator or a phase shifter, and downlink air interface performance service is executed to obtain a downlink air interface performance test result.
An embodiment of the present invention provides a non-transitory computer readable storage medium, on which a computer program is stored, and when executed by a processor, the computer program implements the method as described above, for example, including: acquiring downlink data issued by a terminal; determining a radio frequency channel corresponding to each downlink data according to a preset channel mapping coefficient; sending the downlink data to a terminal through a corresponding radio frequency channel, and executing a downlink service to obtain a platform capability test result; after the platform capability test is finished, if the downlink air interface performance test is determined to be performed, all downlink data is sent to the terminal through each radio frequency channel under an air interface environment formed by connecting the terminal with the base station through a channel simulator or a phase shifter, and downlink air interface performance service is executed to obtain a downlink air interface performance test result.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
Those of ordinary skill in the art will understand that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions and scope of the present invention as defined in the appended claims.
Claims (10)
1. A multi-antenna platform capability test method comprises the following steps:
acquiring downlink data issued by a terminal;
determining a radio frequency channel corresponding to each downlink data according to a preset channel mapping coefficient;
sending the downlink data to a terminal through a corresponding radio frequency channel, and executing a downlink service to obtain a platform capability test result;
it is characterized by also comprising:
after the platform capability test is finished, if the downlink air interface performance test is determined to be performed, all downlink data is sent to the terminal through each radio frequency channel under the air interface environment formed by connecting the terminal with the base station through the channel simulator or the phase shifter, and downlink air interface performance service is executed to obtain a downlink air interface performance test result.
2. The method of claim 1, wherein the channel mapping coefficients comprise:
wherein r is a channel mapping coefficient, the number of rows in the matrix Z is a preset number of radio frequency channels, the number of columns in the matrix Z is a number of port streams of each terminal, and the number of rows in the matrix S is a number S of port streams of each terminal1、S2、S3、S4The matrix Z includes a matrix a having the same number as the number of terminals, and the matrix a specifies the radio frequency channels connected to the terminals.
3. The method of claim 1, wherein the downlink traffic comprises data transmission capability of the S1 communication interface and processing capability of a physical layer, a media access control layer, a radio link control layer, and a packet data convergence protocol layer.
4. The method according to claim 1, wherein during the downlink service, the terminal is connected to the radio frequency channel of the base station by using a coaxial direct connection method.
5. A multi-antenna platform capability testing apparatus, comprising:
the acquisition module is used for acquiring downlink data issued by the orientation terminal;
the determining module is used for determining a radio frequency channel corresponding to each downlink data according to a preset channel mapping coefficient;
the first testing module is used for sending the downlink data to a terminal through a corresponding radio frequency channel and executing downlink service to obtain a platform capability testing result;
it is characterized by also comprising:
and the second testing module is used for sending all downlink data to the terminal through each radio frequency channel under an air interface environment formed by connecting the terminal with the base station through a channel simulator or a phase shifter after the platform capacity test is finished and when the downlink air interface performance test is determined to be carried out, and executing downlink air interface performance service to obtain a downlink air interface performance test result.
6. The apparatus of claim 5, wherein the channel mapping coefficients comprise:
wherein r is a channel mapping coefficient, the number of rows in the matrix Z is a preset number of radio frequency channels, the number of columns in the matrix Z is a number of port streams of each terminal, and the number of rows in the matrix S is a number S of port streams of each terminal1、S2、S3、S4The matrix Z includes a matrix a having the same number as the number of terminals, and the matrix a specifies the radio frequency channels connected to the terminals.
7. The apparatus of claim 5, wherein the downlink traffic comprises data transmission capability of the S1 communication interface and processing capability of a physical layer, a media access control layer, a radio link control layer, and a packet data convergence protocol layer.
8. The apparatus according to claim 5, wherein during the downlink service, the terminal is connected to the radio frequency channel of the base station by using a coaxial direct connection method.
9. An electronic device, comprising: a processor, a memory, a bus, and a computer program stored on the memory and executable on the processor;
the processor and the memory complete mutual communication through the bus;
the processor, when executing the computer program, implements the method of any of claims 1-4.
10. A non-transitory computer-readable storage medium, having stored thereon a computer program which, when executed by a processor, implements the method of any one of claims 1-4.
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| CN101547464A (en) * | 2008-03-28 | 2009-09-30 | 华为技术有限公司 | Wireless test system of virtual outfield |
| CN104902504B (en) * | 2015-06-08 | 2018-12-18 | 北京邮电大学 | A kind of test macro and test method of the handling capacity of multiple antennas mobile terminal |
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