CN110445679B - Communication test method, device, storage medium and electronic equipment - Google Patents

Communication test method, device, storage medium and electronic equipment Download PDF

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Publication number
CN110445679B
CN110445679B CN201910684790.2A CN201910684790A CN110445679B CN 110445679 B CN110445679 B CN 110445679B CN 201910684790 A CN201910684790 A CN 201910684790A CN 110445679 B CN110445679 B CN 110445679B
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user equipment
test data
frequency offset
determining
signal power
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CN110445679A (en
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祝文敏
郭旸
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Nanjing Dayu Semiconductor Co ltd
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Nanjing Dayu Semiconductor Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0061—Error detection codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0823—Errors, e.g. transmission errors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0823—Errors, e.g. transmission errors
    • H04L43/0847—Transmission error
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/22—Parsing or analysis of headers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Environmental & Geological Engineering (AREA)
  • Computer Security & Cryptography (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The disclosure relates to a communication test method, a communication test device, a storage medium and electronic equipment, which are used for reducing time consumption of NB-IoT downlink comprehensive test and improving test efficiency. The communication test method is applied to user equipment in a narrow-band Internet of things (NB-IoT), and comprises the following steps: determining the frequency offset and the signal power of the test data received by the user equipment; and determining whether a communication link where the user equipment is located has a fault according to the frequency offset and the signal power.

Description

Communication test method, device, storage medium and electronic equipment
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a communication testing method and apparatus, a storage medium, and an electronic device.
Background
NB-IoT (Narrow Band Internet of Things) is an emerging technology in the field of Internet of Things, and supports cellular data connection of low-power consumption equipment in a wide area network. The NB-IoT can be directly deployed in a GSM network, a UMTS network or an LTE network, and supports efficient connection of equipment with long standby time and high requirement on network connection.
In the related art, the NB-IoT communication test, such as NB-IoT downlink comprehensive test, mainly resolves BLER (blockerror rate). Specifically, test data including DCI (Downlink Control Information) and NPDSCH (Narrowband Physical Downlink Shared Channel) is generated and sent to UE (User Equipment), then the UE periodically analyzes the DCI, analyzes NPDSCH according to DCI scheduling, calculates BLER according to CRC (Cyclic Redundancy Check) of NPDSCH, and finally determines whether the NB-IoT Downlink Channel has a fault according to the calculated BLER. This approach requires a long time for the whole communication test procedure because the NPDSCH needs to be parsed many times to obtain BLER for the communication test.
Disclosure of Invention
The disclosure aims to provide a communication testing method, a communication testing device, a storage medium and electronic equipment, so as to reduce time consumption of NB-IoT downlink comprehensive testing and improve testing efficiency.
In order to achieve the above object, in a first aspect, the present disclosure provides a communication testing method applied to a user equipment in a narrowband internet of things NB-IoT, the method including:
determining the frequency offset and the signal power of the test data received by the user equipment;
and determining whether a communication link where the user equipment is located has a fault according to the frequency offset and the signal power.
Optionally, the determining, according to the frequency offset and the signal power, whether a communication link in which the user equipment is located has a fault includes:
and if the frequency offset is within a preset frequency offset range and the signal power is within the preset power range, determining that no fault exists in a communication link where the user equipment is located.
Optionally, the determining, according to the frequency offset and the signal power, whether a communication link in which the user equipment is located has a fault includes:
determining a frequency offset error of the user equipment for receiving the test data according to the frequency offset;
determining a power error of the user equipment for receiving the test data according to the signal power;
and if the frequency deviation error is within a first error range and the power error is within a second error range, determining that the communication link where the user equipment is located has no fault.
Optionally, the method further comprises:
receiving test data comprising a system information block SIB 1;
the determining the frequency offset and the signal power of the test data received by the user equipment includes:
decoding the SIB1 included in the test data;
if the SIB1 is decoded correctly, the frequency offset and signal power of the test data received by the user equipment are determined.
Optionally, the method further comprises:
if the SIB1 is incorrectly decoded, it is determined that there is a failure in the communication link in which the user equipment is located.
In a second aspect, the present disclosure further provides a communication testing apparatus applied to a user equipment in a narrowband internet of things NB-IoT, the apparatus including:
a first determining module, configured to determine a frequency offset and a signal power of test data received by the user equipment;
and a second determining module, configured to determine whether a communication link where the user equipment is located has a fault according to the frequency offset and the signal power.
Optionally, the second determining module is configured to:
and if the frequency offset is within a preset frequency offset range and the signal power is within the preset power range, determining that no fault exists in a communication link where the user equipment is located.
Optionally, the second determining module is configured to:
determining a frequency offset error of the user equipment for receiving the test data according to the frequency offset;
determining a power error of the user equipment for receiving the test data according to the signal power;
and if the frequency deviation error is within a first error range and the power error is within a second error range, determining that the communication link where the user equipment is located has no fault.
Optionally, the apparatus further comprises:
a receiving module for receiving test data comprising a system information block SIB 1;
the first determination module is to:
decoding the SIB1 comprised by the test data and determining a frequency offset and a signal power of the test data received by the user equipment when the SIB1 decoding is correct.
Optionally, the apparatus further comprises:
a third determining module, configured to determine that a communication link in which the user equipment is located has a failure when the SIB1 is incorrectly decoded.
In a third aspect, the present disclosure also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method of any one of the first aspect.
In a fourth aspect, the present disclosure also provides an electronic device, including:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to implement the steps of the method of any one of the first aspect.
By the technical scheme, the user equipment in the NB-IoT can determine the frequency offset and the signal power of the received test data, and then determine whether the communication link where the user equipment is located has a fault according to the frequency offset and the signal power. That is to say, the communication test method of the present disclosure can determine whether the communication link where the user equipment is located has a fault through the frequency offset and the signal power in the one-time communication process, and does not need to determine whether the communication link where the user equipment is located has a fault through obtaining the BLER by decoding the NPDSCH multiple times, thereby reducing the time consumed by the communication test and improving the communication test efficiency.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a flowchart of an NB-IoT downlink comprehensive measurement method in the related art;
fig. 2 is a timing diagram of a downlink scheduling procedure in the related art;
FIG. 3 is a flow chart illustrating a method of communication testing according to an exemplary embodiment of the present disclosure;
FIG. 4 is a diagram illustrating test data in a communication test method according to an exemplary embodiment of the present disclosure;
FIG. 5 is a flow chart illustrating a method of communication testing according to another exemplary embodiment of the present disclosure;
FIG. 6 is a block diagram illustrating a communication testing device according to an exemplary embodiment of the present disclosure;
fig. 7 is a block diagram illustrating an electronic device according to an exemplary embodiment of the present disclosure.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the related art, the NB-IoT communication test, such as NB-IoT downlink comprehensive test, mainly resolves BLER (blockerror rate). Specifically, referring to fig. 1, a process of comprehensively measuring NB-IoT downlink in the related art includes:
step S101 generates test data including DCI (Downlink Control Information) and NPDSCH (Narrowband Physical Downlink Shared Channel), and sends the test data to UE (User Equipment).
Step S102, the UE analyzes the DCI.
And step S103, resolving the NPDSCH according to the resolved DCI scheduling.
Step S104, if the NPDSCH is analyzed for the preset times, the BLER is calculated according to the CRC (cyclic redundancy Check) of the NPDSCH.
And step S105, determining whether the NB-IoT downlink has faults or not according to the calculated BLER.
Calculating BLER in the above manner to achieve communication testing requires multiple decoding of NPDSCH to obtain an accurate value. According to the 36.213 protocol, a downlink scheduling minimum time is shown in fig. 2, DCI and NPDSCH each occupy 1ms, DIC and NPDSCH have an interval of 4ms, UCI (uplink Control information) occupies 2ms, NPDSCH and UCI have an interval of 12ms, and UCI is followed by a guard interval of 3ms, that is, a minimum period of downlink scheduling is about 20 ms. And, to guarantee the accuracy of BLER, NPDSCH is decoded at least 100 times. Therefore, the NB-IoT downlink comprehensive measurement in the manner in the related art takes about 2-3s, which is long.
Also, in the above manner, the test data that needs to be generated in advance is complex and needs to include DCI and NPDSCH. In addition, if the DCI and NPDSCH rate matching degrees are high, the calculated BLER may be high even if the NB-IoT downlink fails. Therefore, it may not be possible to accurately test whether a communication link in which the user equipment is located has a failure through the BLER.
In view of this, embodiments of the present disclosure provide a communication testing method, apparatus, storage medium, and electronic device, so as to reduce time consumption for testing an NB-IoT communication link and improve communication testing efficiency.
Fig. 3 is a flow chart illustrating a communication testing method according to an exemplary embodiment of the present disclosure. Referring to fig. 3, the communication test method may be applied to a user equipment in an NB-IoT and may include:
step S301, determining the frequency offset and the signal power of the test data received by the user equipment.
Step S302, according to the frequency deviation and the signal power, whether a communication link where the user equipment is located has a fault is determined.
By the communication test method, whether the communication link where the user equipment is located has a fault can be determined according to the frequency offset and the signal power in one communication process, and the NPDSCH does not need to be decoded for multiple times to obtain the BLER to determine whether the communication link where the user equipment is located has the fault, so that the time consumption of communication test can be reduced, and the communication test efficiency is improved. In addition, the frequency offset and the signal power can better reflect the communication quality, so the communication test method can also improve the accuracy of the result of the communication test.
The above steps are exemplified in detail below in order to make the communication test method of the present disclosure more understandable to those skilled in the art.
For example, the user equipment in the NB-IoT may be connected in advance with a test instrument that may simulate generating test data, such as baseband test data. The test instrument may then send the simulation generated test data to the user equipment in the NB-IoT. Accordingly, user equipment in the NB-IoT may receive the test data, such that a frequency offset and signal power of the received test data may be further determined.
It should be understood that the test data may include different data according to different test requirements. For example, in the related art, since the communication test needs to be performed by decoding DCI and NPDSCH to obtain BLER, the test data in the related art is complex and needs to include DCI and NPDSCH. In the embodiment of the present disclosure, since the DCI and the NPDSCH do not need to be decoded, the test data does not include the DCI and the NPDSCH, which simplifies the content of the test data, thereby facilitating to improve the overall test efficiency.
The frequency deviation refers to the frequency deviation of test data received by the user equipment, and the difference between the test data received by the user equipment and original test data sent to the user equipment can be determined through the frequency deviation, so that the quality of a communication link where the user equipment is located is determined through the frequency deviation, and whether a fault exists in the communication link where the user equipment is located is further determined.
The signal power can be used to characterize the communication quality of the communication link where the user equipment is located, and if the signal power is higher, it can indicate that the communication quality of the communication link is better, and there is no fault. Otherwise, it can indicate that the worse the communication quality of the communication link is, the possible fault exists. Therefore, the embodiment of the disclosure can determine whether a communication link where the user equipment is located has a fault through the signal power.
For example, the Signal power may include RSSI (Received Signal strength Indication) and/or RSRP (Reference Signal ReceivingPower) of the test data Received by the user equipment, which is not limited by the embodiment of the present disclosure. That is, in a possible manner, step S201 may be to determine frequency offset, RSSI and RSRP of the test data received by the user equipment. Accordingly, step S202 may determine whether there is a failure in the communication link where the user equipment is located according to the frequency offset, the RSSI and the RSRP.
In one possible approach, the user equipment may receive test data comprising a system information block SIB 1. Accordingly, step S201 may be to decode SIB1 included in the test data. If the SIB1 is decoded correctly, the frequency offset and signal power of the test data received by the user equipment are further determined.
That is, in a possible approach, the test equipment may generate baseband data including the SIB1 to send to the user equipment for the communication test. If the SIB1 included in the baseband data is decoded correctly by the user equipment, the frequency offset and the signal power of the test data received by the user equipment can be further determined, so that according to the frequency offset and the signal power, a communication test is performed on a communication link where the user equipment is located,
illustratively, the decoding of SIB1 may be determined to be correct by determining whether the CRC resulting from the decoding of SIB1 is correct. Specifically, if the decoded CRC of SIB1 is correct, then SIB1 may be determined to be correct, and de-regularization may determine SIB1 to be incorrect.
If SIB1 is decoded correctly, RSSI and RSRP of the test data can be calculated according to the related information obtained by decoding SIB1, so that the signal power of the test data received by the user equipment can be determined according to RSSI and RSRP. In addition, if the SIB1 is decoded correctly, the frequency offset of the test data received by the user equipment may also be determined at the same time, so that whether a communication link in which the user equipment is located has a failure may be determined according to the frequency offset and the signal power.
In another possible way, if the SIB1 is decoded incorrectly, it may be determined that the communication link in which the user equipment is located has a failure, so that it is not necessary to determine the frequency offset and the signal power of the test data received by the user equipment, and then it is determined whether the communication link in which the user equipment is located has a failure through the frequency offset and the signal power, which may further improve the communication test efficiency.
After determining the frequency offset and the signal power of the test data received by the user equipment, in step S202, it may be determined whether a communication link where the user equipment is located has a fault according to the frequency offset and the signal power. In one possible approach, determining whether the communication link where the user equipment is located has a fault according to the frequency offset and the signal power may be: and if the frequency deviation is within the preset frequency deviation range and the signal power is within the preset power range, determining that no fault exists in the communication link where the user equipment is located.
Otherwise, if the frequency offset is not within the preset frequency offset range or the signal power is not within the preset power range, determining that the communication link where the user equipment is located has a fault.
For example, the preset frequency offset range may be determined according to the frequency offset of the original test data sent to the user equipment, that is, according to the frequency offset of the test data sent to the user equipment by the test instrument. For example, the frequency offset of the test data sent by the test instrument to the user equipment is 872Mhz, then 872 may be used as a central point, and a certain value is left and right floated to obtain a frequency offset range as a preset frequency offset range, for example, the preset frequency offset range may be set to 871.9999 Mhz-872.0001 Mhz, and the like, which is not limited in the embodiment of the present disclosure.
For example, the preset power range may be determined according to the signal power of the original test data transmitted to the user equipment, that is, may be determined according to the signal power of the test data transmitted to the user equipment by the test instrument. For example, the signal power of the test data sent by the test instrument to the user equipment is-90 dbm, then-90 may be used as a central point, a certain value may be left and right floated to obtain a power range as a preset power range, for example, the preset power range may be set to be-95 to-85 dbm, and the like, which is not limited in the embodiment of the present disclosure.
It should be understood that if the signal power includes RSSI and RSRP, the preset power range may include a preset RSSI range and a preset RSRP range, respectively. The preset RSSI range and the preset RSRP range may be set by a tester according to actual test requirements, and are not limited in the embodiments of the present disclosure.
By setting the preset frequency offset range and the preset power range, after determining the frequency offset and the signal power of the test data received by the user equipment, it can be further determined whether the frequency offset is within the preset frequency offset range, and whether the signal power is within the preset power range. If the frequency deviation is within the preset frequency deviation range and the signal power is within the preset power range, the communication quality of the communication link where the user equipment is located is good, and no fault exists. However, if the frequency offset is not within the preset frequency offset range or the signal power is not within the preset power range, it indicates that the communication quality of the communication link where the user equipment is located is determined to be poor, and a fault may exist.
By the mode, the frequency deviation of the test data received by the user equipment can be compared with the preset frequency deviation range, and the signal power of the test data received by the user equipment is compared with the preset power range, so that whether a fault exists in a communication link where the user equipment is located is determined, the NPDSCH does not need to be decoded for multiple times to obtain the BLER for communication test, the communication test time can be shortened, and the communication test efficiency and accuracy are improved.
In another possible manner, determining whether a communication link where the user equipment is located has a fault according to the frequency offset and the signal power may further be: firstly, determining the frequency offset error of the user equipment for receiving the test data according to the frequency offset, and determining the power error of the user equipment for receiving the test data according to the signal power. And if the frequency offset error is within the first error range and the power error is within the second error range, determining that the communication link where the user equipment is located has no fault.
Otherwise, if the frequency offset error is not within the first error range and the power error is not within the second error range, determining that the communication link where the user equipment is located has a fault.
For example, the frequency offset error may be determined according to a difference between the frequency offset of the test data received by the user equipment and the frequency offset of the original test data sent to the user equipment, for example, the frequency offset of the test data received by the user equipment is 872Mhz, and the frequency offset of the original test data sent to the user equipment is 872.0001Mhz, so that the frequency offset error is 100 hz.
Illustratively, the power error may be determined according to a difference between a signal power of the test data received by the user equipment and a signal power of the original test data transmitted to the user equipment, such as-90 dbm for the signal power of the test data received by the user equipment and-92 dbm for the signal power of the original test data transmitted to the user equipment, and then-2 dbm for the power error.
For example, the first error range and the second error range may be set by a tester according to a test accuracy requirement or different test application scenarios, and the embodiment of the present disclosure does not limit this. It should be understood that the greater the first error range and the second error range are set, the lower the accuracy of the test result is, whereas the smaller the first error range and the second error range are set, the higher the accuracy of the test result is. In addition, it should be understood that the numerical value of the first error range may be the same as or different from the numerical value of the second error range, and the embodiment of the disclosure does not limit this.
For example, the first error range is set to-100 to 100hz, and the second error range is set to-5 to 5dbm, so that when the frequency offset error is-100 to 100hz and the power error is-5 to 5dbm, the communication quality of the communication link where the user equipment is located can be determined to be good, and no fault exists. On the contrary, when the frequency offset error is not in the range of-100 to 100hz or the power error is not in the range of-5 dbm to 5dbm, it can be determined that the communication quality of the communication link where the user equipment is located is poor and a fault may exist.
By the method, the frequency offset error and the power error of the test data received by the user equipment can be determined firstly, then whether a communication link where the user equipment is located has a fault is determined according to the comparison result of the frequency offset error and the first error range and the comparison result of the power error and the second error range, and the NPDSCH does not need to be decoded for many times to obtain the BLER for carrying out communication test, so that the communication test time can be reduced, and the communication test efficiency and accuracy are improved.
The communication test method in the present disclosure is explained below by another exemplary embodiment. Referring to fig. 4, 320ms of baseband data may be generated by a test instrument in the communication test method, where the first 160ms includes PSS (primary Synchronization Signal), SSS (Secondary Synchronization Signal), and NPBCH (narrow band Physical Broadcast Channel), and the second 160ms includes PSS, SSS, and SIB 1. And, the period of SIB1 carried in MIB is set to be 160 ms.
Based on the above-mentioned set baseband data, the communication test method for the NB-IoT downlink channel may include the following steps, with reference to fig. 5:
step S501, the UE searches the cell through the PSS and the SSS. Wherein the physical cell ID may be determined during a cell search procedure.
Step S502, NPBCH is detected in a blind mode. In this case, according to the set baseband data, MIB (Master Information Block) may be obtained through NPBCH parsing in the first 160ms, and then the periodicity of SIB1 is determined to be 160ms through parsing MIB.
In step S503, a subframe for transmitting the SIB1 is determined. Illustratively, when the cell ID is even, the subframe for transmitting the SIB1 is subframe 4 of each even radio frame. When the cell ID is odd, the subframe for transmitting the SIB1 is subframe 4 of each odd radio frame. When the cell ID is 0, since SIB1 requires 8 subframe bearers, it may be determined that SIB1 is carried at subframes 164, 184, 204, 224, 244, 264, 284, 304.
In step S504, SIB1 is decoded.
Step S505, determine whether the SIB1 is decoded correctly, if yes, go to step S506, otherwise, go to step S507.
Step S506, determining the frequency offset, RSSI and RSRP of the test data received by the user equipment.
Step S507, determining that the communication link where the user equipment is located has a fault.
Step S508, determining whether the frequency offset, RSSI and RSRP are all within a preset range, if yes, going to step S509, otherwise going to step S507. It should be understood that the preset ranges in step S508 may include a preset frequency offset range corresponding to the frequency offset, a preset RSSI range corresponding to the RSSI, and a preset RSRP range corresponding to the RSRP, respectively.
Step S509, determining that the communication link where the user equipment is located has no failure.
The detailed description of the above steps is given above for illustrative purposes, and will not be repeated here. It will also be appreciated that for simplicity of explanation, the above-described method embodiments are all presented as a series of acts or combination of acts, but those skilled in the art will recognize that the present disclosure is not limited by the order of acts or combination of acts described above. Further, those skilled in the art will also appreciate that the embodiments described above are preferred embodiments and that the steps involved are not necessarily required for the present disclosure.
By the communication test method, whether the communication link where the user equipment is located has a fault can be determined according to the frequency offset and the signal power in one communication process, and compared with the communication test time consumption of 2-3s in the related technology, the whole communication test time is about 300ms, the communication test time consumption can be reduced, and the communication test efficiency is improved.
Based on the same inventive concept, referring to fig. 6, an embodiment of the present disclosure further provides a communication testing apparatus, which may become part or all of an NB-IoT user equipment through hardware, software, or a combination of the two, and may include:
a first determining module 601, configured to determine a frequency offset and a signal power of test data received by the user equipment;
a second determining module 602, configured to determine whether a communication link where the user equipment is located has a failure according to the frequency offset and the signal power.
Optionally, the second determining module 602 is configured to:
and if the frequency offset is within a preset frequency offset range and the signal power is within the preset power range, determining that no fault exists in a communication link where the user equipment is located.
Optionally, the second determining module 602 is configured to:
determining a frequency offset error of the user equipment for receiving the test data according to the frequency offset;
determining a power error of the user equipment for receiving the test data according to the signal power;
and if the frequency deviation error is within a first error range and the power error is within a second error range, determining that the communication link where the user equipment is located has no fault.
Optionally, the apparatus 600 further comprises:
a receiving module for receiving test data comprising a system information block SIB 1;
the first determining module 601 is configured to:
decoding the SIB1 comprised by the test data and determining a frequency offset and a signal power of the test data received by the user equipment when the SIB1 decoding is correct.
Optionally, the apparatus 600 further comprises:
a third determining module, configured to determine that a communication link in which the user equipment is located has a failure when the SIB1 is incorrectly decoded.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
By any communication test device, whether a communication link where the user equipment is located has a fault can be determined through frequency deviation and signal power in a primary communication process, and whether the communication link where the user equipment is located has the fault can be determined without obtaining BLER through decoding NPDSCH for multiple times, so that time consumption of communication test can be reduced, and communication test efficiency and accuracy are improved.
Based on the same inventive concept, an embodiment of the present disclosure further provides an electronic device, including:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to implement the steps of any of the above-described communication testing methods.
By the electronic equipment, whether a communication link where the user equipment is located has a fault can be determined according to the frequency offset and the signal power in one communication process, and whether the communication link where the user equipment is located has the fault can be determined without decoding the NPDSCH for multiple times to obtain BLER, so that the time consumption of a communication test can be reduced, and the efficiency and the accuracy of the communication test can be improved.
In a possible approach, a block diagram of the electronic device may be as shown in fig. 7. Referring to fig. 7, the electronic device may be provided as a user equipment in an NB-IoT and may include: a processor 701 and a memory 702. The electronic device 700 may also include one or more of a multimedia component 703, an input/output (I/O) interface 704, and a communication component 705.
The processor 701 is configured to control the overall operation of the electronic device 700, so as to complete all or part of the steps in the communication testing method. The memory 702 is used to store various types of data to support operation at the electronic device 700, such as instructions for any application or method operating on the electronic device 700 and application-related data, such as a preset frequency offset range, a preset power range, a first error range, a second error range, and so forth.
The Memory 702 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk, or optical disk.
The multimedia components 703 may include screen and audio components. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in the memory 702 or transmitted through the communication component 705. The audio assembly also includes at least one speaker for outputting audio signals.
The I/O interface 704 provides an interface between the processor 701 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 705 is used for wired or wireless communication between the electronic device 700 and other devices. Wireless Communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or a combination of one or more of them, which is not limited herein. The corresponding communication component 705 may thus include: Wi-Fi module, Bluetooth module, NFC module, etc.
In an exemplary embodiment, the electronic Device 700 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the above-described communication testing method.
In another exemplary embodiment, a computer readable storage medium comprising program instructions which, when executed by a processor, implement the steps of the communication testing method described above is also provided. For example, the computer readable storage medium may be the memory 702 described above including program instructions that are executable by the processor 701 of the electronic device 700 to perform the communication testing method described above.
By the storage medium, whether a communication link where the user equipment is located has a fault can be determined according to the frequency offset and the signal power in one communication process, and whether the communication link where the user equipment is located has the fault can be determined without decoding the NPDSCH for multiple times to obtain BLER, so that the time consumption of a communication test can be reduced, and the efficiency and the accuracy of the communication test can be improved.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (12)

1. A communication testing method applied to User Equipment (UE) in a narrowband Internet of things (NB-IoT), the method comprising:
determining frequency offset and signal power of test data received by the user equipment, wherein the test data does not include Downlink Control Information (DCI) and a Narrowband Physical Downlink Shared Channel (NPDSCH), the test data is sent to the user equipment by a test instrument for simulating and generating test data, and the frequency offset of the test data is used for representing frequency offset between the test data received by the user equipment and original test data sent to the user equipment;
and determining whether a communication link where the user equipment is located has a fault according to the frequency offset and the signal power.
2. The method of claim 1, wherein the determining whether the communication link where the user equipment is located has a failure according to the frequency offset and the signal power comprises:
and if the frequency offset is within a preset frequency offset range and the signal power is within the preset power range, determining that no fault exists in a communication link where the user equipment is located.
3. The method of claim 1, wherein the determining whether the communication link where the user equipment is located has a failure according to the frequency offset and the signal power comprises:
determining a frequency offset error of the user equipment for receiving the test data according to the frequency offset;
determining a power error of the user equipment for receiving the test data according to the signal power;
and if the frequency deviation error is within a first error range and the power error is within a second error range, determining that the communication link where the user equipment is located has no fault.
4. The method according to any one of claims 1-3, further comprising:
receiving test data comprising a system information block SIB 1;
the determining the frequency offset and the signal power of the test data received by the user equipment includes:
decoding the SIB1 included in the test data;
if the SIB1 is decoded correctly, the frequency offset and signal power of the test data received by the user equipment are determined.
5. The method of claim 4, further comprising:
if the SIB1 is incorrectly decoded, it is determined that there is a failure in the communication link in which the user equipment is located.
6. A communication testing apparatus applied to a User Equipment (UE) in a narrowband Internet of things (NB-IoT), the apparatus comprising:
a first determining module, configured to determine frequency offset and signal power of test data received by the user equipment, where the test data does not include downlink control information DCI and a narrowband physical downlink shared channel NPDSCH, the test data is sent to the user equipment by a test instrument for generating test data in a simulated manner, and the frequency offset of the test data is used to represent frequency offset between the test data received by the user equipment and original test data sent to the user equipment;
and a second determining module, configured to determine whether a communication link where the user equipment is located has a fault according to the frequency offset and the signal power.
7. The apparatus of claim 6, wherein the second determining module is configured to:
and if the frequency offset is within a preset frequency offset range and the signal power is within the preset power range, determining that no fault exists in a communication link where the user equipment is located.
8. The apparatus of claim 6, wherein the second determining module is configured to:
determining a frequency offset error of the user equipment for receiving the test data according to the frequency offset;
determining a power error of the user equipment for receiving the test data according to the signal power;
and if the frequency deviation error is within a first error range and the power error is within a second error range, determining that the communication link where the user equipment is located has no fault.
9. The apparatus of any of claims 6-8, further comprising:
a receiving module for receiving test data comprising a system information block SIB 1;
the first determination module is to:
decoding the SIB1 comprised by the test data and determining a frequency offset and a signal power of the test data received by the user equipment when the SIB1 decoding is correct.
10. The apparatus of claim 9, further comprising:
a third determining module, configured to determine that a communication link in which the user equipment is located has a failure when the SIB1 is incorrectly decoded.
11. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 5.
12. An electronic device, comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to carry out the steps of the method of any one of claims 1 to 5.
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