Downlink test method and device, uplink test method and device

Abstract

The application discloses a downlink test method and device, and an uplink test method and device. The specific implementation scheme of the downlink test method is as follows: a local maintenance terminal (LMT) of a millimeter wave base station controls a BBU of the millimeter wave base station to send downlink calibration indication information to a measured AAU of the millimeter wave base station, so as to send a first phase difference compensation parameter to the measured AAU according to a phase difference between a second downlink calibration intermediate frequency signal obtained by performing down-conversion reception on a downlink calibration radio frequency signal of a first antenna and a first downlink calibration intermediate frequency signal, thereby controlling the BBU of the millimeter wave base station to send downlink test indication information to the measured AAU, and then controlling a spectrum analysis device to perform test on a downlink test radio frequency signal received by the first antenna, so as to determine a downlink test result of the measured AAU. Thus, the calibration and the test are integrated, and the accuracy of a millimeter wave base station device test result can be ensured.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a downlink testing method and apparatus, and an uplink testing method and apparatus. Background Technology

[0002] Millimeter-wave base stations require radio frequency (RF) testing to verify the proper functioning of their RF link hardware. Since the RF link can be divided into uplink and downlink bidirectional channels, uplink and downlink tests are necessary. In related technologies, uplink RF testing involves sending test signals using a signal source. The base station parses this data according to a fixed configuration and outputs the CRC (cyclic redundancy check) pass rate on the test platform. Downlink RF testing involves the base station sending test data, and a spectrum analyzer analyzes the signal quality to determine if it meets 3GPP (3rd Generation Partnership Project) standards. However, because RF testing often uses analog data, the accuracy of the test results can be low. Summary of the Invention

[0003] This application provides a downlink testing method and apparatus, and an uplink testing method and apparatus.

[0004] According to a first aspect of this application, a downlink testing method is provided, the method comprising:

[0005] The local maintenance terminal (LMT) of the millimeter-wave base station controls the base station's base unit (BBU) to send downlink calibration instruction information to the AAU under test of the millimeter-wave base station; wherein, the downlink calibration instruction information is used to instruct the AAU under test to send downlink calibration radio frequency signal according to the first downlink calibration intermediate frequency signal;

[0006] Based on the phase difference between the second downlink calibration intermediate frequency signal obtained by downconverting the downlink calibration radio frequency signal to the first downlink calibration intermediate frequency signal and the first downlink calibration intermediate frequency signal, a first phase difference compensation parameter is sent to the AAU under test.

[0007] The LMT controls the BBU of the millimeter-wave base station to send downlink test instruction information to the AAU under test; wherein, the downlink test instruction information is used to instruct the AAU under test to send a downlink test radio frequency signal, and the downlink test radio frequency signal is the radio frequency signal after phase compensation by the AAU under test according to the first phase difference compensation parameter;

[0008] The control spectrum analysis equipment tests the downlink test radio frequency signal received by the first antenna to determine the downlink test result of the AAU under test.

[0009] Optionally, before the step of controlling the BBU of the millimeter-wave base station to send downlink calibration indication information to the AAU under test of the millimeter-wave base station via the local maintenance terminal (LMT) of the millimeter-wave base station, the method further includes:

[0010] The optical switching matrix is ​​controlled to establish a link between the BBU and the AAU under test among multiple AAUs.

[0011] Optionally, after the control optical switching matrix establishes the link between the BBU and the tested AAU among the multiple AAUs, it further includes:

[0012] The first antenna is rotated so that its receiving direction matches the transmitting direction of the AAU under test.

[0013] Optionally, the downlink calibration indication information carries target downlink data and target control messages;

[0014] The target downlink data and the target control message correspond to the test type information indicated by the LMT and are used by the AAU to generate the first downlink calibration intermediate frequency signal.

[0015] According to a second aspect of this application, an uplink testing method is provided, characterized in that the method includes:

[0016] The control signal source outputs an uplink calibration radio frequency signal to the second antenna through an upconverter based on the first uplink calibration intermediate frequency signal, so that the second antenna transmits the uplink calibration radio frequency signal;

[0017] Based on the phase difference between the second uplink calibration intermediate frequency signal obtained by the AUU under test of the millimeter-wave base station performing down-conversion reception of the uplink calibration radio frequency signal and the first uplink calibration intermediate frequency signal, a second phase difference compensation parameter is sent to the AAU under test.

[0018] The signal source is controlled to output an uplink test radio frequency signal through the second antenna, so that the AUU under test receives the uplink test radio frequency signal to obtain a first uplink test intermediate frequency signal, and the second phase difference compensation parameter is used to compensate for the phase difference to obtain a phase-compensated first uplink test intermediate frequency signal.

[0019] The BBU controlling the millimeter-wave base station determines the uplink test result of the AUU under test based on the first uplink test intermediate frequency signal after phase compensation.

[0020] Optionally, before the control signal source outputs an uplink calibration radio frequency signal to the second antenna via an upconverter based on the first uplink calibration intermediate frequency signal, and before the second antenna transmits the uplink calibration radio frequency signal, it further includes:

[0021] The optical switching matrix is ​​controlled to establish a link between the BBU and the AAU under test among multiple AAUs.

[0022] Optionally, after the control optical switching matrix establishes the link between the BBU and the tested AAU among the multiple AAUs, it further includes:

[0023] Control the rotation of the second antenna so that the transmission direction of the second antenna matches the receiving direction of the AAU under test.

[0024] According to a third aspect of this application, a testing apparatus is provided, characterized in that it includes a memory, a transceiver, and a processor:

[0025] A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:

[0026] The local maintenance terminal (LMT) of the millimeter-wave base station controls the base station's base unit (BBU) to send downlink calibration instruction information to the AAU under test of the millimeter-wave base station; wherein, the downlink calibration instruction information is used to instruct the AAU under test to send downlink calibration radio frequency signal according to the first downlink calibration intermediate frequency signal;

[0027] Based on the phase difference between the second downlink calibration intermediate frequency signal obtained by downconverting the downlink calibration radio frequency signal to the first downlink calibration intermediate frequency signal and the first downlink calibration intermediate frequency signal, a first phase difference compensation parameter is sent to the AAU under test.

[0028] The LMT controls the BBU of the millimeter-wave base station to send downlink test instruction information to the AAU under test; wherein, the downlink test instruction information is used to instruct the AAU under test to send a downlink test radio frequency signal, and the downlink test radio frequency signal is the radio frequency signal after phase compensation by the AAU under test according to the first phase difference compensation parameter;

[0029] The control spectrum analysis equipment tests the downlink test radio frequency signal received by the first antenna to determine the downlink test result of the AAU under test.

[0030] Optionally, before the step of controlling the BBU of the millimeter-wave base station to send downlink calibration indication information to the AAU under test of the millimeter-wave base station via the local maintenance terminal (LMT) of the millimeter-wave base station, the method further includes:

[0031] The optical switching matrix is ​​controlled to establish a link between the BBU and the AAU under test among multiple AAUs.

[0032] Optionally, after the control optical switching matrix establishes the link between the BBU and the tested AAU among the multiple AAUs, it further includes:

[0033] The first antenna is rotated so that its receiving direction matches the transmitting direction of the AAU under test.

[0034] According to a fourth aspect of this application, a testing apparatus is provided, characterized in that it includes a memory, a transceiver, and a processor:

[0035] A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:

[0036] The control signal source outputs an uplink calibration radio frequency signal to the second antenna through an upconverter based on the first uplink calibration intermediate frequency signal, so that the second antenna transmits the uplink calibration radio frequency signal;

[0037] Based on the phase difference between the second uplink calibration intermediate frequency signal obtained by the AUU under test of the millimeter-wave base station performing down-conversion reception of the uplink calibration radio frequency signal and the first uplink calibration intermediate frequency signal, a second phase difference compensation parameter is sent to the AAU under test.

[0038] The signal source is controlled to output an uplink test radio frequency signal through the second antenna, so that the AUU under test receives the uplink test radio frequency signal to obtain a first uplink test intermediate frequency signal, and the second phase difference compensation parameter is used to compensate for the phase difference to obtain a phase-compensated first uplink test intermediate frequency signal.

[0039] The BBU controlling the millimeter-wave base station determines the uplink test result of the AUU under test based on the first uplink test intermediate frequency signal after phase compensation.

[0040] Optionally, before the control signal source outputs an uplink calibration radio frequency signal to the second antenna via an upconverter based on the first uplink calibration intermediate frequency signal, and before the second antenna transmits the uplink calibration radio frequency signal, it further includes:

[0041] The optical switching matrix is ​​controlled to establish a link between the BBU and the AAU under test among multiple AAUs.

[0042] Optionally, after the control optical switching matrix establishes the link between the BBU and the tested AAU among the multiple AAUs, it further includes:

[0043] Control the rotation of the second antenna so that the transmission direction of the second antenna matches the receiving direction of the AAU under test.

[0044] According to a fifth aspect of this application, a testing system is provided, characterized in that it comprises:

[0045] The AAU under test is connected to the local maintenance terminal (LMT) of the millimeter-wave base station via the BBU of the millimeter-wave base station.

[0046] The first antenna is used to receive signals emitted by the AAU under test.

[0047] The second antenna is used to transmit signals to the AAU under test;

[0048] The signal source is connected to the second antenna;

[0049] A spectrum analysis device is connected to the first antenna and the signal source.

[0050] Optionally, the spectrum analysis device is also connected to the AAU under test, and is used to determine the first phase difference compensation parameter based on the phase difference between the second downlink calibration intermediate frequency signal received by the first antenna and the first downlink calibration intermediate frequency signal obtained from the AAU under test.

[0051] Optionally, the spectrum analysis device is also connected to the AAU under test and a signal source, and is used to determine a second phase difference compensation parameter based on the phase difference between the second uplink calibration intermediate frequency signal received by the AAU under test and the first uplink calibration intermediate frequency signal obtained from the signal source.

[0052] Optionally, the signal source is a high-frequency signal source; or,

[0053] The signal source includes a frequency converter and an intermediate frequency signal source.

[0054] Optionally, a downconverter is provided between the spectrum analysis device and the first antenna for frequency conversion of the radio frequency signal output by the first antenna.

[0055] Optionally, an upconverter is provided between the intermediate frequency signal source and the second antenna to convert the intermediate frequency signal output by the intermediate frequency signal source.

[0056] Optionally, the system further includes an optical switching matrix;

[0057] The optical switching matrix is ​​used to establish a link between the BBU and the tested AAU among multiple AAUs.

[0058] Optionally, the first antenna is further configured to adjust its receiving direction to match the transmitting direction of the AAU under test; and / or,

[0059] The second antenna is also used to adjust the transmission direction to match the receiving direction of the AAU under test.

[0060] According to a sixth aspect of this application, a processor-readable storage medium is provided, the processor-readable storage medium storing a computer program for causing the processor to perform the downlink test method of the first aspect, or the uplink test method of the second aspect.

[0061] The downlink testing method and apparatus provided in this application control the base station bus (BBU) of the millimeter-wave base station via the local maintenance terminal (LMT) to send downlink calibration instruction information to the AAU under test (AAU) of the millimeter-wave base station. This achieves the following: based on the phase difference between the second downlink calibration intermediate frequency (IF) signal obtained by downconverting the downlink calibration RF signal received by the first antenna and the first downlink calibration IF signal, a first phase difference compensation parameter is sent to the AAU under test. This, in turn, controls the BBU to send downlink test instruction information to the AAU under test via the LMT, thereby controlling a spectrum analysis device to test the downlink test RF signal received by the first antenna to determine the downlink test result of the AAU under test. Thus, by integrating calibration and testing into one unit, the accuracy of the test results for the millimeter-wave base station equipment can be guaranteed.

[0062] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this application, nor is it intended to limit the scope of this application. Other features of this application will become readily apparent from the following description. Attached Figure Description

[0063] The accompanying drawings are provided for a better understanding of this solution and do not constitute a limitation of this application. Wherein:

[0064] Figure 1 This is a schematic diagram of the structure of a test platform provided according to the first embodiment of this application;

[0065] Figure 2 This is a schematic diagram of the structure of a test platform provided according to the second embodiment of this application;

[0066] Figure 3 This is a flowchart illustrating a downlink testing method according to the third embodiment of this application;

[0067] Figure 4 This is a flowchart illustrating a downlink testing method provided according to the fourth embodiment of this application;

[0068] Figure 5 This is a flowchart illustrating an uplink testing method provided according to the fifth embodiment of this application;

[0069] Figure 6 This is a flowchart illustrating an uplink testing method provided according to the sixth embodiment of this application;

[0070] Figure 7This is a schematic diagram of the structure of a testing system provided according to the seventh embodiment of this application;

[0071] Figure 8 This is a schematic diagram of a testing device provided according to the eighth embodiment of this application;

[0072] Figure 9 This is a schematic diagram of a testing device provided according to the ninth embodiment of this application. Detailed Implementation

[0073] In the embodiments of this application, the term "and / or" describes the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0074] In the embodiments of this application, the term "multiple" refers to two or more, and other quantifiers are similar.

[0075] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0076] Currently, in related technologies, there are mainly two types of testing platforms:

[0077] First, the test platform consists of an AAU (Active Antenna Unit) and test instruments (spectrum analysis equipment and signal source), such as... Figure 1 As shown, the millimeter-wave base station's LMT (Local Maintenance Terminal) is connected to the AAU (Audi Antenna Unit), and the LMT can control the AAU. The spectrum analysis equipment and signal source are also connected to the antenna. In this scheme, the data source required for transmitter RF performance testing is obtained by simulating the data source within the AAU. However, because the data source is simulated within the AAU, it does not pass through the interface between the BBU (Baseband Unit) and the AAU, thus failing to fully verify the AAU equipment.

[0078] Secondly, the test platform consists of an analog BBU, AAU, and test instruments (spectrum analysis equipment and signal source), such as... Figure 2As shown, the millimeter-wave base station's LMT is connected to the simulated BBU, which in turn is connected to the AAU. This allows the LMT to control the AAU via the simulated BBU. The spectrum analysis equipment and signal source are also connected to the antenna. In this scheme, the data source required for transmitter RF performance testing is obtained through simulation within the simulated BBU. However, because the data source is simulated within the simulated BBU, although the data source passes through the CPRI (Common Public Radio Interface) interface between the simulated BBU and the AAU, it cannot fully verify the actual BBU equipment.

[0079] To address the aforementioned issues, embodiments of this application provide downlink testing methods and apparatus, and uplink testing methods and apparatus, to integrate calibration and testing into one unit, ensuring the accuracy of millimeter-wave base station equipment testing.

[0080] The method and apparatus are based on the same concept of the application. Since the methods and apparatus solve problems in similar ways, the implementation of the apparatus and methods can refer to each other, and the repeated parts will not be described again.

[0081] The technical solutions provided in this application can be applied to a variety of systems. For example, applicable systems may include Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS), Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD), LTE Time Division Duplex (TDD), Long Term Evolution Advanced (LTE-A), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX), and 5G New Radio (NR). All of these systems include terminal equipment and network equipment. The systems may also include a core network component, such as Evolved Packet System (EPS) or 5G system (5GS).

[0082] The terminal devices involved in the embodiments of this application can be devices that provide voice and / or data connectivity to users, handheld devices with wireless connectivity, or other processing devices connected to a wireless modem. The names of the terminal devices may differ in different systems; for example, in a 5G system, a terminal device can be called User Equipment (UE). Wireless terminal devices can communicate with one or more core networks (CNs) via a Radio Access Network (RAN). Wireless terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, for example, portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the RAN. Examples include Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). Wireless terminal equipment can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, remote terminal, access terminal, user terminal, user agent, or user device, but is not limited to these terms in the embodiments of this application.

[0083] The network device involved in this application embodiment can be a base station, which may include multiple cells providing services to terminals. Depending on the specific application, a base station may also be called an access point, or a device in an access network that communicates with a wireless terminal device through one or more sectors on the air interface, or other names. The network device can be used to exchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network device can also coordinate the attribute management of the air interface. For example, the network equipment involved in the embodiments of this application can be a base transceiver station (BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a NodeB in a Wide-band Code Division Multiple Access (WCDMA) system, an evolved Node B (eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station (gNB) in a next generation system, a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in the embodiments of this application. In some network structures, the network equipment may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized unit and distributed unit may be geographically separated.

[0084] Network devices and terminal devices can each use one or more antennas for multiple-input multiple-output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multiple-user MIMO (MU-MIMO). Depending on the configuration and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, and can also be diversity transmission, precoding transmission, or beamforming transmission, etc.

[0085] The downlink testing method and apparatus, and the uplink testing method and apparatus of this embodiment are described below with reference to the accompanying drawings.

[0086] Figure 3 This is a flowchart illustrating a downlink testing method provided according to the third embodiment of this application.

[0087] Optionally, the downlink testing method provided in this application embodiment can be executed by a testing device, which may include a memory, a transceiver, and a processor. The memory stores a computer program; the transceiver transmits and receives data under the control of the processor; and the processor reads the computer program from the memory and executes the downlink testing method provided in this application embodiment. Alternatively, the downlink testing method provided in this application embodiment can be executed by a testing system. This testing system may include the AAU under test, BBU, and LMT of a millimeter-wave base station, as well as a first antenna, a spectrum analysis device, and a control device. The AAU under test is connected to the local maintenance terminal (LMT) of the millimeter-wave base station via the BBU; the first antenna receives signals emitted by the AAU under test; the spectrum analysis device is connected to the first antenna and the control device; and the control device is connected to the AAU under test, the LMT, and the spectrum analysis device to execute the downlink testing method provided in this application embodiment. This embodiment does not impose any limitations on this. This application embodiment uses the execution of the downlink testing method by a testing system as an example for illustration.

[0088] like Figure 3 As shown, the downlink testing method may include the following steps:

[0089] Step 301: The local maintenance terminal (LMT) of the millimeter-wave base station controls the BBU of the millimeter-wave base station to send downlink calibration instruction information to the AAU under test of the millimeter-wave base station.

[0090] In this embodiment, the control device of the test system can be connected to the LMT of the millimeter-wave base station, the AAU under test of the millimeter-wave base station, and the spectrum analysis device to execute this downlink test method. The AAU under test of the millimeter-wave base station can be connected to the LMT of the millimeter-wave base station through the BBU of the millimeter-wave base station. It is understood that, since the control device of the test system can be connected to the LMT of the millimeter-wave base station, and the AAU under test of the millimeter-wave base station can be connected to the LMT of the millimeter-wave base station through the BBU of the millimeter-wave base station, the control device of the test system can control the BBU of the millimeter-wave base station to send downlink calibration indication information to the AAU under test of the millimeter-wave base station through the LMT. The downlink calibration indication information is used to instruct the AAU under test to send a downlink calibration radio frequency signal based on the first downlink calibration intermediate frequency signal. That is, the control device of the test system controls the BBU of the millimeter-wave base station to send downlink calibration indication information to the AAU under test of the millimeter-wave base station through the LMT, so that after receiving the downlink calibration indication information, the AAU under test can send a downlink calibration radio frequency signal based on the first downlink calibration intermediate frequency signal according to the instruction of the downlink calibration indication information.

[0091] In this embodiment, the first downlink calibration intermediate frequency signal can be understood as the intermediate frequency signal in the AAU under test, and the downlink calibration radio frequency signal can be understood as the radio frequency signal obtained by the AAU under test after processing the first downlink calibration intermediate frequency signal. It is understood that, since the intermediate frequency signal needs to be converted into a radio frequency signal by a frequency converter before transmission, the AAU under test, after receiving the downlink calibration indication information, can determine the corresponding downlink calibration radio frequency signal based on the first downlink calibration intermediate frequency signal and send it.

[0092] In one possible implementation of this embodiment, the control device of the test system can configure relevant calibration flag parameters into the BBU of the millimeter-wave base station through the LMT of the millimeter-wave base station, so as to control the BBU of the millimeter-wave base station to send downlink calibration instruction information to the AAU under test of the millimeter-wave base station.

[0093] It should be noted that the downlink calibration indication information may carry target downlink data and target control messages. These target downlink data and target control messages correspond to the test type information indicated by the LMT (Local Modem) and are used by the AAU under test to generate the first downlink calibration intermediate frequency signal.

[0094] Step 302: Based on the phase difference between the second downlink calibration intermediate frequency signal obtained by downconverting the downlink calibration RF signal to the first downlink calibration intermediate frequency signal and the first downlink calibration intermediate frequency signal, send the first phase difference compensation parameter to the AAU under test.

[0095] In this embodiment, since the first antenna is used to receive the signal emitted by the AAU under test, after receiving the downlink calibration RF signal emitted by the AAU under test, the first antenna can downconvert the downlink calibration RF signal to obtain a second downlink calibration intermediate frequency signal. Then, the control device of the test system can determine a first phase difference compensation parameter based on the phase difference between the first and second downlink calibration intermediate frequency signals and send the first phase difference compensation parameter to the AAU under test. It should be noted that the signal received by the first antenna is a radio frequency signal, while the signal in the AAU under test is an intermediate frequency signal. Therefore, after receiving the downlink calibration RF signal emitted by the AAU under test, the first antenna needs to downconvert the downlink calibration RF signal to obtain a second downlink calibration intermediate frequency signal with the same frequency as the first downlink calibration intermediate frequency signal. Then, the control device of the test system can determine the first phase difference compensation parameter based on the phase difference between the first and second downlink calibration intermediate frequency signals and send the first phase difference compensation parameter to the AAU under test.

[0096] In one possible implementation of this embodiment, the control device of the test system can directly use the phase difference between the second downlink calibration intermediate frequency signal obtained by downconverting the downlink calibration RF signal received by the first antenna and the first downlink calibration intermediate frequency signal as the first phase compensation parameter. Optionally, the control device of the test system can control a spectrum analysis device to measure the phase difference between the first downlink calibration intermediate frequency signal and the second downlink calibration intermediate frequency signal, thereby obtaining the phase difference between the first downlink calibration intermediate frequency signal and the second downlink calibration intermediate frequency signal. In this case, the spectrum analysis device can be connected to the AAU under test and used to determine the first phase difference compensation parameter based on the phase difference between the second downlink calibration intermediate frequency signal received by the first antenna and the first downlink calibration intermediate frequency signal obtained from the AAU under test.

[0097] It should be noted that when performing downlink testing on the signal emitted by the AAU under test, since the signal will have a certain phase change during transmission, a calibration process is required before the test to determine the corresponding first phase difference compensation parameter and send the first phase difference compensation parameter to the AAU under test so that the AAU under test can perform phase compensation on the RF signal according to the first phase difference compensation parameter.

[0098] Understandably, the calibration process to determine the first phase difference compensation parameter may include: 1. After receiving the downlink calibration instruction information sent by the BBU of the millimeter-wave base station, the AAU under test sends a downlink calibration radio frequency signal to the first antenna based on the signal in the AAU under test, i.e., the first downlink calibration intermediate frequency signal; 2. After receiving the downlink calibration radio frequency signal sent by the AAU under test, the first antenna performs downconversion processing on the downlink calibration radio frequency signal to obtain the second downlink calibration intermediate frequency signal; 3. The control equipment of the test system determines the first phase difference compensation parameter based on the phase difference between the signal in the AAU under test, i.e., the first downlink calibration intermediate frequency signal and the second downlink calibration intermediate frequency signal.

[0099] Step 303: The BBU is controlled by the LMT to send downlink test instruction information to the AAU under test.

[0100] In this embodiment, the control device of the test system can control the BBU of the millimeter-wave base station to send downlink test instruction information to the AAU under test of the millimeter-wave base station via the LMT of the millimeter-wave base station. The downlink test instruction information instructs the AAU under test to send a downlink test radio frequency signal, which is the radio frequency signal after phase compensation by the AAU under test according to the first phase difference compensation parameter. Optionally, the control device of the test system can first control the BBU of the millimeter-wave base station to send the downlink test instruction information to the AAU under test via the LMT of the millimeter-wave base station. After receiving the downlink test instruction information, the AAU under test then performs phase compensation according to the previously received first phase difference compensation parameter to obtain the downlink test radio frequency signal and sends it to the first antenna. Alternatively, after receiving the first phase difference compensation parameter sent by the first antenna, the AAU under test can first perform phase compensation according to the first phase difference compensation parameter to obtain the downlink test radio frequency signal, and then, after receiving the downlink test instruction information sent by the BBU of the millimeter-wave base station, send a downlink calibration radio frequency signal to the first antenna according to the downlink test instruction information. This embodiment does not impose any restrictions on this approach.

[0101] In one possible implementation of this embodiment, the control device of the test system can configure relevant test parameters into the BBU of the millimeter-wave base station through the LMT of the millimeter-wave base station, so as to control the BBU of the millimeter-wave base station to send downlink test instruction information to the AAU under test.

[0102] It is understandable that the AAU under test performs phase compensation based on the first phase difference compensation parameter, which can achieve phase alignment of each transmission channel, so that the phase-compensated RF signal can be sent to the first antenna as a downlink test RF signal.

[0103] Step 304: Control the spectrum analysis device to test the downlink test RF signal received by the first antenna to determine the downlink test result of the AAU under test.

[0104] In this embodiment, the spectrum analysis device is connected to the first antenna. Optionally, a downconverter may be provided between the spectrum analysis device and the first antenna to convert the frequency of the radio frequency signal output by the first antenna.

[0105] In this embodiment, since the first antenna is used to receive the signal emitted by the AAU under test, after the first antenna receives the downlink test radio frequency signal emitted by the AAU under test, the control device of the test system can control the spectrum analysis device to test the downlink test radio frequency signal received by the first antenna in order to determine the downlink test result of the AAU under test.

[0106] The downlink testing method provided in this application embodiment controls the base station bus (BBU) of the millimeter-wave base station to send downlink calibration instruction information to the AAU under test (AAU) of the millimeter-wave base station via the local maintenance terminal (LMT). This achieves this by sending a first phase difference compensation parameter to the AAU based on the phase difference between the second downlink calibration intermediate frequency signal obtained by downconverting the downlink calibration RF signal received by the first antenna and the first downlink calibration intermediate frequency signal. The LMT then controls the BBU to send downlink test instruction information to the AAU, thereby controlling a spectrum analysis device to test the downlink test RF signal received by the first antenna to determine the downlink test result of the AAU. Thus, integrating calibration and testing into one unit ensures the accuracy of the millimeter-wave base station equipment test results.

[0107] To clearly illustrate the previous embodiment, this embodiment provides another downlink testing method. Figure 4This is a flowchart illustrating a downlink testing method according to the fourth embodiment of this application. Similarly, the downlink testing method provided in this embodiment can also be executed by a testing device, which may include a memory, a transceiver, and a processor. The memory stores a computer program; the transceiver transmits and receives data under the control of the processor; and the processor reads the computer program from the memory and executes the downlink testing method provided in this embodiment. Alternatively, the downlink testing method provided in this embodiment can also be executed by a testing system, which may include the AAU under test, BBU, and LMT of a millimeter-wave base station, as well as a first antenna, a spectrum analysis device, and a control device. The AAU under test is connected to the local maintenance terminal (LMT) of the millimeter-wave base station via the BBU; the first antenna receives signals emitted by the AAU under test; the spectrum analysis device is connected to the first antenna and the control device; and the control device is connected to the AAU under test, the LMT, and the spectrum analysis device to execute the downlink testing method provided in this embodiment. This embodiment does not impose any limitations on this. Similarly, this embodiment will also illustrate the downlink testing method executed by a testing system.

[0108] like Figure 4 As shown, the downlink testing method may include the following steps:

[0109] Step 401: Control the optical switching matrix to establish a link between the BBU and the AAU under test among multiple AAUs.

[0110] In this embodiment, the optical switching matrix can be connected to the control equipment of the test system to establish a link between the BBU and the AAU under test among multiple AAUs under the control of the control equipment of the test system.

[0111] In this embodiment, the control device of the test system can control the optical switching matrix to establish a link between the BBU and the AAU under test among multiple AAUs, so as to realize the testing of the AAU under test among multiple AAUs. Optionally, the number of AAUs under test can be one or more, and this embodiment does not limit this. Specifically, when the number of AAUs under test is one, the control device of the test system can control the optical switching matrix to establish a link between the BBU and one of the AAUs under test among multiple AAUs; when the number of AAUs under test is multiple, the control device of the test system can control the optical switching matrix to establish links between the BBU and multiple AAUs under test among multiple AAUs.

[0112] Step 402: Control the first antenna to rotate so that the receiving direction of the first antenna matches the transmitting direction of the AAU under test.

[0113] In this embodiment, the control device of the test system can be connected to the first antenna to control the rotation of the first antenna so that the receiving direction of the first antenna matches the transmitting direction of the AAU under test.

[0114] In this embodiment, since the first antenna is used to receive the signal emitted by the AAU under test, the receiving direction of the first antenna must be consistent with the transmitting direction of the AAU under test. Therefore, the control equipment of the test system needs to control the first antenna to rotate so that the receiving direction of the first antenna matches the transmitting direction of the AAU under test.

[0115] Step 403: The local maintenance terminal (LMT) of the millimeter-wave base station controls the BBU of the millimeter-wave base station to send downlink calibration instruction information to the AAU under test of the millimeter-wave base station.

[0116] Step 404: Based on the phase difference between the second downlink calibration intermediate frequency signal obtained by downconverting the downlink calibration RF signal to the first downlink calibration intermediate frequency signal and the first downlink calibration intermediate frequency signal, send the first phase difference compensation parameter to the AAU under test.

[0117] Step 405: The BBU is controlled by the LMT to send downlink test instruction information to the AAU under test.

[0118] Step 406: Control the spectrum analysis device to test the downlink test RF signal received by the first antenna to determine the downlink test result of the AAU under test.

[0119] It should be noted that the execution process of steps 403-406 can refer to the execution process of steps 301-304 in the previous embodiment of this application, and the principle is the same, so it will not be repeated here.

[0120] The downlink testing method provided in this application embodiment can, before the local maintenance terminal (LMT) of the millimeter-wave base station controls the base station's BBU to send downlink calibration instruction information to the AAU under test, control the optical switching matrix to establish a link between the BBU and the AAU under test among multiple AAUs, and control the rotation of the first antenna to match the receiving direction of the first antenna with the transmitting direction of the AAU under test. This enables batch testing of AAUs.

[0121] It should be noted that the above embodiments are described from the perspective of downlink testing. To more clearly illustrate the testing process, this application provides a possible implementation of an uplink testing method described from the perspective of uplink testing. Figure 5 This is a flowchart illustrating an uplink testing method provided according to the fifth embodiment of this application.

[0122] Optionally, the uplink testing method provided in this application embodiment can be executed by a testing device, which may include a memory, a transceiver, and a processor. The memory stores a computer program; the transceiver transmits and receives data under the control of the processor; and the processor reads the computer program from the memory and executes the uplink testing method provided in this application embodiment. Alternatively, the uplink testing method provided in this application embodiment can be executed by a testing system. This testing system may include the AAU under test, BBU, and LMT of a millimeter-wave base station, as well as a second antenna, a signal source, a spectrum analysis device, and a control device. The AAU under test is connected to the local maintenance terminal (LMT) of the millimeter-wave base station via the BBU; the second antenna transmits signals to the AAU under test; the signal source is connected to the second antenna and the control device; the spectrum analysis device is connected to the signal source and the control device; and the control device is connected to the AAU under test, the LMT, the signal source, and the spectrum analysis device to execute the uplink testing method provided in this application embodiment. This embodiment does not impose any limitations on this. This application embodiment uses the execution of the uplink testing method by a testing system as an example for illustration.

[0123] like Figure 5 As shown, the uplink testing method may include the following steps:

[0124] Step 501: The control signal source outputs an uplink calibration radio frequency signal to the second antenna through the upconverter based on the first uplink calibration intermediate frequency signal, so that the second antenna can transmit the uplink calibration radio frequency signal.

[0125] In this embodiment, the control device of the test system can be connected to the LMT of the millimeter-wave base station, the AAU under test of the millimeter-wave base station, the signal source and the spectrum analysis device to execute this uplink test method.

[0126] In this embodiment, the signal source can be connected to the control equipment of the second antenna and the test system. Optionally, the signal source can be a high-frequency signal source, or the signal source can include a frequency converter and an intermediate frequency signal source; this embodiment does not impose any limitations on this.

[0127] In this embodiment, the second antenna is used to transmit signals to the AAU under test.

[0128] In this embodiment, an upconverter can be installed between the signal source and the second antenna to convert the intermediate frequency signal output by the signal source.

[0129] In this embodiment, the control device of the test system can control the signal source to convert the first uplink calibration intermediate frequency signal into an uplink calibration radio frequency signal through an upconverter, and output the uplink calibration radio frequency signal to the second antenna so that the second antenna can transmit the uplink calibration radio frequency signal.

[0130] In this embodiment, the first uplink calibration intermediate frequency signal can be understood as the intermediate frequency signal in the signal source, and the uplink calibration radio frequency signal can be understood as the radio frequency signal obtained after the signal source processes the first uplink calibration intermediate frequency signal through an upconverter. It is understood that, since the intermediate frequency signal needs to be converted into a radio frequency signal by the upconverter before transmission, the signal source needs to convert the first uplink calibration intermediate frequency signal into an uplink calibration radio frequency signal through the upconverter and output this uplink calibration radio frequency signal to the second antenna.

[0131] Step 502: Based on the phase difference between the second uplink calibration intermediate frequency signal obtained by the downconversion reception of the uplink calibration radio frequency signal by the AAU under test of the millimeter wave base station and the first uplink calibration intermediate frequency signal, send the second phase difference compensation parameter to the AAU under test.

[0132] In this embodiment, since the second antenna is used to transmit signals to the AAU under test, after receiving the uplink calibration RF signal from the second antenna, the AAU under test can down-convert the uplink calibration RF signal to obtain a second uplink test intermediate frequency signal. Then, the control equipment of the test system can determine a second phase difference compensation parameter based on the phase difference between the second and first uplink calibration intermediate frequency signals, and send this second phase difference compensation parameter to the AAU under test. It should be noted that the signal transmitted by the second antenna is a radio frequency signal, while the signal in the signal source is an intermediate frequency signal. Therefore, after receiving the uplink calibration RF signal from the second antenna, the AAU under test needs to down-convert the uplink calibration RF signal to obtain a second uplink calibration intermediate frequency signal with the same frequency as the first uplink calibration intermediate frequency signal. Then, the control equipment of the test system can determine the second phase difference compensation parameter based on the phase difference between the first and second uplink calibration intermediate frequency signals, and send this second phase difference compensation parameter to the AAU under test.

[0133] In one possible implementation of this embodiment, the control device of the test system can directly use the phase difference between the second uplink calibration intermediate frequency signal obtained by the AAU under test (AAU) through downconversion of the uplink calibration RF signal and the first downlink calibration intermediate frequency signal as the second phase compensation parameter. Optionally, the control device of the test system can control a spectrum analysis device to measure the phase difference between the first uplink calibration intermediate frequency signal and the second uplink calibration intermediate frequency signal, thereby obtaining the phase difference between the first uplink calibration intermediate frequency signal and the second uplink calibration intermediate frequency signal. In this case, the spectrum analysis device can be connected to the AAU under test and the signal source to determine the second phase difference compensation parameter based on the phase difference between the second uplink calibration intermediate frequency signal received by the AAU under test and the first uplink calibration intermediate frequency signal obtained from the signal source.

[0134] Similarly, when performing uplink testing on the signal received by the AAU under test, since the signal will have a certain phase change during transmission, a calibration process is required before the test to determine the corresponding second phase difference compensation parameter and send the second phase difference compensation parameter to the AAU under test so that the AAU under test can perform phase compensation on the RF signal according to the second phase difference compensation parameter.

[0135] Understandably, the calibration process to determine the second phase difference compensation parameter may include: 1. The signal source, based on the signal in the signal source, i.e., the first uplink calibration intermediate frequency signal, outputs an uplink calibration radio frequency signal to the second antenna via an upconverter, so that the second antenna transmits the uplink calibration radio frequency signal to the AAU under test; 2. After receiving the uplink calibration radio frequency signal from the second antenna, the AAU under test performs downconversion processing on the uplink calibration radio frequency signal to obtain the second uplink calibration intermediate frequency signal; 3. The control equipment of the test system determines the second phase difference compensation parameter based on the signal in the signal source, i.e., the first uplink calibration intermediate frequency signal, and the phase difference between the second uplink calibration intermediate frequency signal.

[0136] Step 503: The control signal source outputs an uplink test RF signal through the second antenna so that the AAU under test receives the uplink test RF signal to obtain the first uplink test intermediate frequency signal, and uses the second phase difference compensation parameter to compensate for it to obtain the phase-compensated first uplink test intermediate frequency signal.

[0137] In this embodiment, since the second antenna is used to transmit signals to the AAU under test, the control equipment of the test system can control the signal source to output an uplink test RF signal through the second antenna. This allows the AAU under test to receive the uplink test RF signal and obtain a first uplink test intermediate frequency (IF) signal. The AAU then uses a second phase difference compensation parameter to compensate for the phase difference, resulting in a phase-compensated first uplink test IF signal. In other words, after receiving the uplink test RF signal output from the second antenna, the AAU under test can determine the first uplink test IF signal based on the received signal and then use the previously received second phase difference compensation parameter to compensate for the first uplink test IF signal, thus obtaining a phase-compensated first uplink test IF signal.

[0138] In one possible implementation of this embodiment, after receiving the uplink test RF signal from the second antenna, the AAU under test can perform downconversion processing on the uplink test RF signal to obtain the first uplink test intermediate frequency signal.

[0139] It is understandable that the AAU under test uses the second phase difference compensation parameter for phase compensation, which can achieve phase alignment of each transmission channel.

[0140] Step 504: Control the BBU of the millimeter-wave base station to determine the uplink test result of the AAU under test based on the first uplink test intermediate frequency signal after phase compensation.

[0141] In this embodiment, the control device of the test system can control the BBU of the millimeter-wave base station to determine the uplink test result of the AAU under test based on the first uplink test intermediate frequency signal after phase compensation.

[0142] The uplink testing method provided in this application integrates calibration and testing. A control signal source outputs a first uplink calibration radio frequency (RF) signal to a second antenna via an upconverter based on a first uplink calibration IF signal. This causes the second antenna to transmit the first uplink calibration RF signal. A second phase difference compensation parameter is then sent to the AAU under test (AAU) based on the phase difference between the second uplink calibration IF signal received by the AAU at the millimeter-wave base station and the first uplink calibration IF signal. This allows the control signal source to output an uplink test RF signal through the second antenna, enabling the AAU under test to receive the uplink test RF signal, obtain the first uplink test IF signal, and compensate for the phase difference using the second phase difference compensation parameter to obtain a phase-compensated first uplink test IF signal. Finally, the BBU of the millimeter-wave base station determines the uplink test result of the AAU under test based on the phase-compensated first uplink test IF signal. This integrated calibration and testing ensures the accuracy of the millimeter-wave base station equipment test results.

[0143] To clearly illustrate the previous embodiment, this embodiment provides another uplink testing method. Figure 6 This is a flowchart illustrating an uplink testing method according to the sixth embodiment of this application. Similarly, the uplink testing method provided in this application embodiment can also be executed by a testing device. This testing device can also include a memory, a transceiver, and a processor, wherein the memory is used to store computer programs; the transceiver is used to transmit and receive data under the control of the processor; and the processor is used to read the computer program from the memory and execute the uplink testing method provided in this application embodiment. Alternatively, the uplink testing method provided in this application embodiment can also be executed by a testing system, which can also include the AAU under test, BBU, and LMT of the millimeter-wave base station, as well as a second antenna, a signal source, a spectrum analysis device, and a control device. The AAU under test is connected to the local maintenance terminal (LMT) of the millimeter-wave base station via the BBU; the second antenna is used to transmit signals to the AAU under test; the signal source is connected to the second antenna and the control device; the spectrum analysis device is connected to the signal source and the control device; and the control device is connected to the AAU under test, the LMT, the signal source, and the spectrum analysis device to execute the uplink testing method provided in this application embodiment. This embodiment does not impose any limitations on this aspect. Similarly, this application embodiment uses the example of the test system executing the above-line test method to illustrate the process.

[0144] like Figure 6 As shown, the uplink testing method may include the following steps:

[0145] Step 601: Control the optical switching matrix to establish a link between the BBU and the AAU under test among multiple AAUs.

[0146] In this embodiment, the optical switching matrix can be connected to the control equipment of the test system to establish a link between the BBU and the AAU under test among multiple AAUs under the control of the control equipment of the test system.

[0147] In this embodiment, the control device of the test system can control the optical switching matrix to establish a link between the BBU and the AAU under test among multiple AAUs, so as to realize the testing of the AAU under test among multiple AAUs. Optionally, the number of AAUs under test can be one or more, and this embodiment does not limit this. Specifically, when the number of AAUs under test is one, the control device of the test system can control the optical switching matrix to establish a link between the BBU and one of the AAUs under test among multiple AAUs; when the number of AAUs under test is multiple, the control device of the test system can control the optical switching matrix to establish links between the BBU and multiple AAUs under test among multiple AAUs.

[0148] Step 602: Control the rotation of the second antenna so that the transmission direction of the second antenna matches the receiving direction of the AAU under test.

[0149] In this embodiment, the control device of the test system can be connected to the second antenna to control the rotation of the second antenna so that the transmission direction of the second antenna matches the receiving direction of the AAU under test.

[0150] In this embodiment, since the second antenna is used to transmit signals to the AAU under test, the receiving direction of the second antenna must be consistent with the receiving direction of the AAU under test. Therefore, the control equipment of the test system needs to control the rotation of the second antenna so that the transmission direction of the second antenna matches the receiving direction of the AAU under test.

[0151] Step 603: The control signal source outputs an uplink calibration radio frequency signal to the second antenna through the upconverter based on the first uplink calibration intermediate frequency signal, so that the second antenna can transmit the uplink calibration radio frequency signal.

[0152] Step 604: Based on the phase difference between the second uplink calibration intermediate frequency signal obtained by the under-test AUU of the millimeter-wave base station performing down-conversion reception of the uplink calibration radio frequency signal and the first uplink calibration intermediate frequency signal, send the second phase difference compensation parameter to the under-test AUU.

[0153] Step 605: The control signal source outputs an uplink test RF signal through the second antenna so that the AUU under test receives the uplink test RF signal to obtain the first uplink test intermediate frequency signal, and uses the second phase difference compensation parameter to compensate for it to obtain the phase-compensated first uplink test intermediate frequency signal.

[0154] Step 606: Control the BBU of the millimeter-wave base station to determine the uplink test result of the AUU under test based on the first uplink test intermediate frequency signal after phase compensation.

[0155] It should be noted that the execution process of steps 603-606 can refer to the execution process of steps 501-504 in the previous embodiment of this application, and the principle is the same, so it will not be repeated here.

[0156] The downlink testing method provided in this application embodiment, before the control signal source outputs an uplink calibration RF signal to the second antenna via an upconverter based on the first uplink calibration intermediate frequency signal, so that the second antenna transmits the uplink calibration RF signal, can control the optical switching matrix to establish a link between the BBU and the AAU under test among multiple AAUs, and control the rotation of the second antenna so that the transmission direction of the second antenna matches the reception direction of the AAU under test. Thus, batch testing of AAUs can be achieved.

[0157] To more clearly illustrate the above embodiments, the embodiments of this application provide, as follows: Figure 7 The diagram shows the structure of the test system. Figure 7 This is a schematic diagram of a testing system provided according to the seventh embodiment of this application. Figure 7 As shown, the testing process of a millimeter-wave base station can be controlled by a console. The control device is connected to a network switch, which controls the LMT, optical switching matrix, first antenna, second antenna, frequency converter, signal source, and spectrum analysis equipment. The LMT controls the BBU, allowing the control device to control the BBU via the LMT. The control device controls the optical switching matrix via the network switch, allowing it to control any AAU in the dark box via the optical switching matrix. The control device controls the first and second antennas via the network switch, allowing it to align the first and second antennas with the AAU position by adjusting and rotating them. Optionally, appropriate frequency points (26GHz and 39GHz), bandwidths (100MHz, 200MHz, 400MHz, and 800MHz), subframe configurations (e.g., DDDSU, DDDSUU, and DSUUU), power, and other parameters can be set in the LMT to establish a normal cell.

[0158] To implement the above embodiments, this application also provides a testing apparatus.

[0159] Figure 8 This is a schematic diagram of a testing device provided according to the eighth embodiment of this application.

[0160] like Figure 8 As shown, the test apparatus may include a memory 810, a transceiver 820, and a processor 830.

[0161] The memory 810 is used to store computer programs; the transceiver 820 is used to send and receive data under the control of the processor; and the processor 830 is used to read the computer programs from the memory and perform the following operations:

[0162] The local maintenance terminal (LMT) of the millimeter-wave base station controls the base station's BBU to send downlink calibration instruction information to the AAU under test of the millimeter-wave base station; wherein, the downlink calibration instruction information is used to instruct the AAU under test to send downlink calibration radio frequency signal according to the first downlink calibration intermediate frequency signal;

[0163] Based on the phase difference between the second downlink calibration intermediate frequency signal obtained by downconverting the downlink calibration radio frequency signal to the first downlink calibration intermediate frequency signal and the first downlink calibration intermediate frequency signal, the first phase difference compensation parameter is sent to the AAU under test.

[0164] The BBU of the millimeter-wave base station is controlled by LMT to send downlink test instruction information to the AAU under test; wherein, the downlink test instruction information is used to instruct the AAU under test to send downlink test radio frequency signal, and the downlink test radio frequency signal is the radio frequency signal after phase compensation by the AAU under test according to the first phase difference compensation parameter;

[0165] The control spectrum analysis equipment tests the downlink test RF signal received by the first antenna to determine the downlink test result of the AAU under test.

[0166] Transceiver 820 is used to receive and send data under the control of processor 830.

[0167] Among them, Figure 8 In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits together, represented by one or more processors (processor 830) and memory (memory 810). The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 820 can be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical fibers, etc. The processor 830 is responsible for managing the bus architecture and general processing, and the memory 810 can store data used by the processor 830 during operation.

[0168] Alternatively, the processor 830 may be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD), and the processor may also adopt a multi-core architecture.

[0169] The processor executes any of the methods described in the embodiments of this application according to the obtained executable instructions by calling a computer program stored in memory. The processor and memory may also be physically separated.

[0170] As one possible implementation of this application, before the local maintenance terminal (LMT) of the millimeter-wave base station controls the BBU of the millimeter-wave base station to send downlink calibration indication information to the AAU under test of the millimeter-wave base station, the following method is also included:

[0171] The optical switching matrix is ​​controlled to establish a link between the BBU and the AAU under test among multiple AAUs.

[0172] As one possible implementation of this application, after controlling the optical switching matrix to establish a link between the BBU and the tested AAU among multiple AAUs, the method further includes:

[0173] Control the rotation of the first antenna so that the receiving direction of the first antenna matches the transmitting direction of the AAU under test.

[0174] It should be noted that the testing apparatus provided in this application embodiment is capable of achieving the above-mentioned... Figures 3 to 4 All method steps implemented in the method embodiment can achieve the same technical effect. Therefore, the parts that are the same as those in the method embodiment and their beneficial effects will not be described in detail here.

[0175] Figure 9 This is a schematic diagram of a testing device provided according to the ninth embodiment of this application.

[0176] like Figure 9 As shown, the test apparatus may include a memory 910, a transceiver 920, and a processor 930.

[0177] The memory 910 is used to store computer programs; the transceiver 920 is used to send and receive data under the control of the processor; and the processor 930 is used to read the computer programs from the memory and perform the following operations:

[0178] The control signal source outputs an uplink calibration radio frequency signal to the second antenna through an upconverter based on the first uplink calibration intermediate frequency signal, so that the second antenna can transmit the uplink calibration radio frequency signal;

[0179] Based on the phase difference between the second uplink calibration intermediate frequency signal obtained by the AUU under test of the millimeter-wave base station performing down-conversion reception of the uplink calibration radio frequency signal and the first uplink calibration intermediate frequency signal, a second phase difference compensation parameter is sent to the AAU under test.

[0180] The control signal source outputs an uplink test RF signal through the second antenna, so that the AUU under test receives the uplink test RF signal to obtain the first uplink test intermediate frequency signal, and uses the second phase difference compensation parameter to compensate to obtain the phase-compensated first uplink test intermediate frequency signal;

[0181] The BBU controlling the millimeter-wave base station determines the uplink test result of the AUU under test based on the first uplink test intermediate frequency signal after phase compensation.

[0182] Transceiver 920 is used to receive and send data under the control of processor 930.

[0183] Among them, Figure 9 In this context, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits together, represented by one or more processors (processor 930) and memory (memory 910). The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 920 may be multiple elements, including transmitters and receivers, providing units for communicating with various other devices over transmission media, including wireless channels, wired channels, optical fibers, etc. The processor 930 is responsible for managing the bus architecture and general processing, and the memory 910 may store data used by the processor 930 during operation.

[0184] Alternatively, the processor 930 may be a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a CPLD (Complex Programmable Logic Device), and the processor may also adopt a multi-core architecture.

[0185] The processor executes any of the methods described in the embodiments of this application according to the obtained executable instructions by calling a computer program stored in memory. The processor and memory may also be physically separated.

[0186] As one possible implementation of this application, the control signal source outputs an uplink calibration radio frequency signal to the second antenna via an upconverter based on the first uplink calibration intermediate frequency signal, so that before the second antenna transmits the uplink calibration radio frequency signal, the method further includes:

[0187] The optical switching matrix is ​​controlled to establish a link between the BBU and the AAU under test among multiple AAUs.

[0188] As one possible implementation of this application, after controlling the optical switching matrix to establish a link between the BBU and the tested AAU among multiple AAUs, the method further includes:

[0189] Control the rotation of the second antenna to match the transmission direction of the second antenna with the receiving direction of the AAU under test.

[0190] It should be noted that the testing apparatus provided in this application embodiment is capable of achieving the above-mentioned... Figures 5 to 6 All method steps implemented in the method embodiment can achieve the same technical effect. Therefore, the parts that are the same as those in the method embodiment and their beneficial effects will not be described in detail here.

[0191] To implement the above embodiments, this application also proposes a testing system. The testing system includes: an AAU under test, a first antenna, a second antenna, a signal source, and a spectrum analysis device.

[0192] Among them, the AAU under test is connected to the local maintenance terminal (LMT) of the millimeter-wave base station through the BBU of the millimeter-wave base station.

[0193] The first antenna is used to receive signals emitted by the AAU under test.

[0194] The second antenna is used to transmit signals to the AAU under test.

[0195] The signal source is connected to the second antenna;

[0196] A spectrum analysis device, connected to the first antenna and signal source;

[0197] Optionally, the spectrum analysis device is also connected to the AAU under test and is used to determine the first phase difference compensation parameter based on the phase difference between the second downlink calibration intermediate frequency signal received by the first antenna and the first downlink calibration intermediate frequency signal obtained from the AAU under test.

[0198] Optionally, the testing apparatus performs the functions described in this application. Figures 5 to 6Uplink test method of any embodiment;

[0199] The spectrum analysis equipment is also connected to the AAU under test and the signal source to determine the second phase difference compensation parameter based on the phase difference between the second uplink calibration intermediate frequency signal received by the AAU under test and the first uplink calibration intermediate frequency signal obtained from the signal source.

[0200] Optionally, the signal source is a high-frequency signal source; or,

[0201] Signal sources include frequency converters and intermediate frequency signal sources.

[0202] Optionally, a downconverter is provided between the spectrum analysis device and the first antenna to convert the frequency of the radio frequency signal output by the first antenna.

[0203] Optionally, an upconverter is provided between the intermediate frequency signal source and the second antenna to convert the intermediate frequency signal output by the intermediate frequency signal source.

[0204] Optionally, the testing system also includes an optical switching matrix;

[0205] An optical switching matrix is ​​used to establish links between the BBU and the tested AAU among multiple AAUs.

[0206] Optionally, the first antenna is also used to adjust the receiving direction to match the transmitting direction of the AAU under test; and / or,

[0207] The second antenna is also used to adjust the transmission direction to match the receiving direction of the AAU under test.

[0208] To implement the above embodiments, this application also proposes a processor-readable storage medium. This processor-readable storage medium stores a computer program that causes the processor to execute this application. Figures 3 to 4 The downlink test method of any embodiment, or, Figures 5 to 6 The uplink test method of any embodiment.

[0209] The processor-readable storage medium can be any available medium or data storage device that the processor can access, including but not limited to magnetic memory (e.g., floppy disk, hard disk, magnetic tape, magneto-optical disk (MO)), optical memory (e.g., CD, DVD, BD, HVD), and semiconductor memory (e.g., ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)).

[0210] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.

[0211] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0212] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0213] These processors can execute instructions that can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable device for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0214] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A downlink testing method, characterized in that, The method includes: The local maintenance terminal (LMT) of the millimeter-wave base station controls the base station's base unit (BBU) to send downlink calibration instruction information to the AAU under test of the millimeter-wave base station; wherein, the downlink calibration instruction information is used to instruct the AAU under test to send downlink calibration radio frequency signal according to the first downlink calibration intermediate frequency signal; Based on the phase difference between the second downlink calibration intermediate frequency signal obtained by downconverting the downlink calibration radio frequency signal to the first downlink calibration intermediate frequency signal and the first downlink calibration intermediate frequency signal, a first phase difference compensation parameter is sent to the AAU under test. The LMT controls the BBU to send downlink test instruction information to the AAU under test; wherein, the downlink test instruction information is used to instruct the AAU under test to send a downlink test radio frequency signal, and the downlink test radio frequency signal is the radio frequency signal after phase compensation by the AAU under test according to the first phase difference compensation parameter; The control spectrum analysis equipment tests the downlink test radio frequency signal received by the first antenna to determine the downlink test result of the AAU under test.

2. The method according to claim 1, characterized in that, Before the step of controlling the BBU of the millimeter-wave base station to send downlink calibration instruction information to the AAU under test of the millimeter-wave base station via the local maintenance terminal (LMT) of the millimeter-wave base station, the method further includes: The optical switching matrix is ​​controlled to establish a link between the BBU and the AAU under test among multiple AAUs.

3. The method according to claim 2, characterized in that, After the control optical switching matrix establishes the link between the BBU and the tested AAU among the multiple AAUs, it also includes: The first antenna is rotated so that its receiving direction matches the transmitting direction of the AAU under test.

4. The method according to any one of claims 1-3, characterized in that, The downlink calibration indication information carries target downlink data and target control messages; The target downlink data and the target control message correspond to the test type information indicated by the LMT and are used by the AAU to generate the first downlink calibration intermediate frequency signal.

5. An uplink testing method, characterized in that, The method includes: The control signal source outputs an uplink calibration radio frequency signal to the second antenna through an upconverter based on the first uplink calibration intermediate frequency signal, so that the second antenna transmits the uplink calibration radio frequency signal; Based on the phase difference between the second uplink calibration intermediate frequency signal obtained by the AAU under test of the millimeter-wave base station performing down-conversion reception of the uplink calibration radio frequency signal and the first uplink calibration intermediate frequency signal, a second phase difference compensation parameter is sent to the AAU under test. The signal source is controlled to output an uplink test radio frequency signal through the second antenna, so that the AAU under test receives the uplink test radio frequency signal to obtain a first uplink test intermediate frequency signal, and the second phase difference compensation parameter is used to compensate for the phase difference to obtain a phase-compensated first uplink test intermediate frequency signal. The BBU controlling the millimeter-wave base station determines the uplink test result of the AAU under test based on the first uplink test intermediate frequency signal after phase compensation.

6. The method according to claim 5, characterized in that, The control signal source outputs an uplink calibration radio frequency signal to the second antenna via an upconverter based on the first uplink calibration intermediate frequency signal, so that before the second antenna transmits the uplink calibration radio frequency signal, it further includes: The optical switching matrix is ​​controlled to establish a link between the BBU and the AAU under test among multiple AAUs.

7. The method according to claim 6, characterized in that, After the control optical switching matrix establishes the link between the BBU and the tested AAU among the multiple AAUs, it also includes: Control the rotation of the second antenna so that the transmission direction of the second antenna matches the receiving direction of the AAU under test.

8. A testing apparatus, characterized in that, Includes memory, transceiver, and processor: A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations: The local maintenance terminal (LMT) of the millimeter-wave base station controls the base station's base unit (BBU) to send downlink calibration instruction information to the AAU under test of the millimeter-wave base station; wherein, the downlink calibration instruction information is used to instruct the AAU under test to send downlink calibration radio frequency signal according to the first downlink calibration intermediate frequency signal; Based on the phase difference between the second downlink calibration intermediate frequency signal obtained by downconverting the downlink calibration radio frequency signal to the first downlink calibration intermediate frequency signal and the first downlink calibration intermediate frequency signal, a first phase difference compensation parameter is sent to the AAU under test. The LMT controls the BBU of the millimeter-wave base station to send downlink test instruction information to the AAU under test; wherein, the downlink test instruction information is used to instruct the AAU under test to send a downlink test radio frequency signal, and the downlink test radio frequency signal is the radio frequency signal after phase compensation by the AAU under test according to the first phase difference compensation parameter; The control spectrum analysis equipment tests the downlink test radio frequency signal received by the first antenna to determine the downlink test result of the AAU under test.

9. The apparatus according to claim 8, characterized in that, Before the step of controlling the BBU of the millimeter-wave base station to send downlink calibration instruction information to the AAU under test of the millimeter-wave base station via the local maintenance terminal (LMT) of the millimeter-wave base station, the method further includes: The optical switching matrix is ​​controlled to establish a link between the BBU and the AAU under test among multiple AAUs.

10. The apparatus according to claim 9, characterized in that, After the control optical switching matrix establishes the link between the BBU and the tested AAU among the multiple AAUs, it also includes: The first antenna is rotated so that its receiving direction matches the transmitting direction of the AAU under test.

11. A testing apparatus, characterized in that, Includes memory, transceiver, and processor: A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations: The control signal source outputs an uplink calibration radio frequency signal to the second antenna through an upconverter based on the first uplink calibration intermediate frequency signal, so that the second antenna transmits the uplink calibration radio frequency signal; Based on the phase difference between the second uplink calibration intermediate frequency signal obtained by the AAU under test of the millimeter-wave base station performing down-conversion reception of the uplink calibration radio frequency signal and the first uplink calibration intermediate frequency signal, a second phase difference compensation parameter is sent to the AAU under test. The signal source is controlled to output an uplink test radio frequency signal through the second antenna, so that the AAU under test receives the uplink test radio frequency signal to obtain a first uplink test intermediate frequency signal, and the second phase difference compensation parameter is used to compensate for the phase difference to obtain a phase-compensated first uplink test intermediate frequency signal. The BBU controlling the millimeter-wave base station determines the uplink test result of the AAU under test based on the first uplink test intermediate frequency signal after phase compensation.

12. The apparatus according to claim 11, wherein before the control signal source outputs an uplink calibration radio frequency signal to the second antenna via an upconverter based on the first uplink calibration intermediate frequency signal, so as to enable the second antenna to transmit the uplink calibration radio frequency signal, the apparatus further comprises: The optical switching matrix is ​​controlled to establish a link between the BBU and the AAU under test among multiple AAUs.

13. The apparatus according to claim 12, characterized in that, After the control optical switching matrix establishes the link between the BBU and the tested AAU among the multiple AAUs, it also includes: Control the rotation of the second antenna so that the transmission direction of the second antenna matches the receiving direction of the AAU under test.

14. A testing system, characterized in that, include: The AAU under test is connected to the local maintenance terminal (LMT) of the millimeter-wave base station via the BBU of the millimeter-wave base station. The first antenna is used to receive signals emitted by the AAU under test. The second antenna is used to transmit signals to the AAU under test; The signal source is connected to the second antenna; A spectrum analysis device is connected to the first antenna and the signal source.

15. The system according to claim 14, characterized in that, The spectrum analysis device is also connected to the AAU under test and is used to determine the first phase difference compensation parameter based on the phase difference between the second downlink calibration intermediate frequency signal received by the first antenna and the first downlink calibration intermediate frequency signal obtained from the AAU under test.

16. The system according to claim 14, characterized in that, The spectrum analysis device is also connected to the AAU under test and the signal source, and is used to determine the second phase difference compensation parameter based on the phase difference between the second uplink calibration intermediate frequency signal received by the AAU under test and the first uplink calibration intermediate frequency signal obtained from the signal source.

17. The system according to any one of claims 14-16, characterized in that, The signal source is a high-frequency signal source; or... The signal source includes a frequency converter and an intermediate frequency signal source.

18. The system according to claim 14, characterized in that, A downconverter is provided between the spectrum analysis device and the first antenna to convert the frequency of the radio frequency signal output by the first antenna.

19. The system according to claim 17, characterized in that, An upconverter is provided between the intermediate frequency signal source and the second antenna to convert the intermediate frequency signal output by the intermediate frequency signal source.

20. The system according to any one of claims 14-16, characterized in that, The system also includes an optical switching matrix; The optical switching matrix is ​​used to establish a link between the BBU and the tested AAU among multiple AAUs.

21. The system according to claim 19, characterized in that, The first antenna is also used to adjust the receiving direction to match the transmitting direction of the AAU under test; and / or, The second antenna is also used to adjust the transmission direction to match the receiving direction of the AAU under test.

22. A processor-readable storage medium, characterized in that, The processor-readable storage medium stores a computer program that causes the processor to perform the method as described in any one of claims 1-4, or the method as described in any one of claims 5-8.

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