Standing Wave Ratio Calculation Method, Apparatus, Network Device, and Storage Medium

Abstract

The standing wave ratio calculation method, device, network device, and storage medium provided by the embodiments of the present invention determine the time domain position of the synchronization and broadcast SSB symbols according to the cell configuration information; collect the feedback signal and the reflection signal corresponding to the SSB symbol based on the time domain position; calculate the corresponding standing wave ratio based on the feedback signal and the reflection signal corresponding to the SSB symbol. Thus, by determining the time domain position of the SSB symbol, it is possible to ensure that, under the condition of the 5G physical layer signal characteristics, the feedback signal and the reflection signal corresponding to the SSB symbol can be accurately obtained, avoiding obtaining incorrect signals or failing to obtain signals, thereby providing the possibility for accurately calculating the corresponding standing wave ratio and enabling the calculation of the standing wave ratio of 5G NR signals.

Description

Technical Field

[0001] The embodiments of the present invention relate to, but are not limited to, the field of communications. Specifically, they relate to, but are not limited to, a method, device, network device, and storage medium for calculating the standing wave ratio. Background Art

[0002] The standing wave ratio is an important indicator for indicating the impedance matching state of a communication system and has important guiding significance for the detection of the quality of the antenna feeder system and outdoor field construction. In the related art, the vector standing wave ratio calculation function is usually used to achieve real-time standing wave ratio calculation and detection. In the RRU (Remote Radio Unit) system, the vector standing wave ratio function needs to collect and feedback the forward and reflected signals at different times and convert them to the frequency domain to calculate the standing wave ratio of the desired frequency point. However, the vector standing wave ratio calculation function in the related art is only applicable to 2G, 3G, and 4G, and is not applicable to 5G NR (New Radio) signals. Because when collecting and feedbacking the forward and reflected signals at different times, due to the signal characteristics of the 5G physical layer, it cannot be guaranteed that the collected signals are valid signals, and even signals cannot be collected. Therefore, a reliable standing wave ratio calculation scheme is urgently needed. Summary of the Invention

[0003] The standing wave ratio calculation method, device, network device, and storage medium provided by the embodiments of the present invention mainly solve the technical problem that there is a lack of a standing wave ratio calculation scheme for 5G NR signals in the related art.

[0004] To solve the above technical problem, an embodiment of the present invention provides a method for calculating the standing wave ratio, including:

[0005] Determine the time domain position of the SSB symbol according to the cell configuration information;

[0006] Collect the forward signal and the reflected signal corresponding to the SSB symbol based on the time domain position;

[0007] Calculate the corresponding standing wave ratio based on the forward signal and the reflected signal corresponding to the SSB symbol.

[0008] An embodiment of the present invention also provides a device for calculating the standing wave ratio, including:

[0009] A position determination module, configured to determine the time domain position of the SSB synchronization / broadcast block symbol according to the cell configuration information;

[0010] An acquisition module, configured to collect the forward signal and the reflected signal corresponding to the SSB symbol based on the time domain position;

[0011] A calculation module, configured to calculate the corresponding standing wave ratio based on the forward signal and the reflected signal corresponding to the SSB symbol.

[0012] An embodiment of the present invention further provides a network device, including a processor, a memory, and a communication bus;

[0013] The communication bus is used to implement connection communication between the processor and the memory;

[0014] The processor is configured to execute one or more computer programs stored in the memory to implement the steps of the above-mentioned standing wave ratio calculation method.

[0015] An embodiment of the present invention further provides a computer storage medium. The computer-readable storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of the above-mentioned standing wave ratio calculation method.

[0016] According to the standing wave ratio calculation method, device, network device, and storage medium provided by the embodiments of the present invention, the time domain position of the SSB synchronization / broadcast block symbol is determined according to the cell configuration information; based on the time domain position, the feedback signal and the reflection signal corresponding to the SSB symbol are collected; based on the feedback signal and the reflection signal corresponding to the SSB symbol, the corresponding standing wave ratio is calculated. Thus, by determining the time domain position of the SSB symbol, it is possible to accurately obtain the feedback signal and the reflection signal corresponding to the SSB symbol under the condition of the 5G physical layer signal characteristics, avoiding obtaining incorrect signals or failing to obtain signals, thereby providing the possibility for accurately calculating the corresponding standing wave ratio and realizing the standing wave ratio calculation of 5G NR signals.

[0017] Other features and corresponding beneficial effects of the present invention are described in the following part of the specification, and it should be understood that at least some of the beneficial effects are obvious from the description in the specification of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a flowchart of the standing wave ratio calculation method according to Embodiment 1 of the present invention;

[0019] Figure 2 It is a characteristic diagram of 5G NR SSB symbols in each embodiment of the present invention;

[0020] Figure 3 It is a detailed flowchart of the standing wave ratio calculation method according to Embodiment 2 of the present invention;

[0021] Figure 4 It is a schematic diagram of the composition of the standing wave ratio calculation device according to Embodiment 3 of the present invention;

[0022] Figure 5 It is a schematic diagram of the composition of the network device according to Embodiment 4 of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to make the objectives, technical solutions and advantages of the present invention more clear and understandable, the embodiments of the present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] Embodiment 1:

[0025] This embodiment provides a method for calculating the standing wave ratio. Please refer to Figure 1 , and the method includes:

[0026] S101. Determine the time domain position of the SSB symbol according to the cell configuration information;

[0027] S102. Collect the feedback signal and the reflection signal corresponding to the SSB symbol based on the time domain position;

[0028] S103. Calculate the corresponding standing wave ratio based on the feedback signal and the reflection signal corresponding to the SSB symbol.

[0029] In the related art, the vector standing wave ratio calculation function is used to implement the standing wave ratio calculation and detection. In the RRU system, the vector standing wave ratio function needs to collect the feedback and reflection signals at different times and convert them to the frequency domain to calculate the standing wave ratio of the desired frequency point. Since 5G NR collects signals at different times and 5G NR schedules resources in the frequency domain in units of RBs (Resource Blocks), a corresponding standing wave ratio calculation scheme needs to be designed for 5G NR. In order to successfully calculate the standing wave ratio, it is necessary to ensure that the feedback signal and the reflection signal collected during the time-sharing collection process are converted to the frequency domain and have signals at the same frequency point, so that the standing wave ratio can be correctly calculated.

[0030] Please refer to Figure 2 , Figure 2This is an introduction to the symbol characteristics of 5G NR SSB (SS / PBCH block, Synchronization and Broadcast Block; SS, Synchronization Signal; PBCH, Physical Broadcast Channel). In the time domain, an SSB contains 4 OFDM symbols numbered from 0 to 3. In the frequency domain, an SS / PBCH block contains 240 consecutive subcarriers (20 RBs) numbered from 0 to 239. As can be seen from the figure, the PSS (Primary Synchronization Signal) and SSS (Secondary Synchronization Signal) are on symbols 0 and 2, and in the frequency domain, they are located on subcarriers 56 - 182, a total of 127 subcarriers. On both sides of the PSS and SSS in the frequency domain, there is a part of subcarriers set to 0 as guard bands. For the PSS, subcarriers 0 - 55 at the low end and 183 - 239 at the high end are set to 0 as guard bands. For the SSS, subcarriers 48 - 55 at the low end and 183 - 191 at the high end are set to 0 as guard bands. The PBCH (Physical Broadcast Channel) is on symbols 1, 2, and 3. After deducting the DMRS (Demodulation Reference Signal) on symbols 1 and 3, there are 240 * 0.75 = 180 subcarriers left. After deducting the DMRS on symbol 2, there are (240 - 127 - 8 - 9) * 0.75 = 72 subcarriers left. The DMRS is inserted in the middle of the PBCH, with an interval of 4 subcarriers, and the starting offset position is mod 4, indicating that the v value therein is determined by the physical cell ID.

[0031] According to the cell configuration information, the time-domain position of the SSB symbol can be determined. The cell configuration information includes, but is not limited to, the following information: ARFCN (Absolute Radio Frequency Channel Number), GSCN (Global Synchronization Channel Number), SSB time-domain transmission period, and the specific position of the SSB in a cycle. Among them, in some embodiments, determining the time-domain position of the SSB symbol according to the cell configuration information may include:

[0032] Determining the cyclic period of the SSB symbol;

[0033] Determining the transmission position scenario CASE of the SSB symbol within the cyclic period;

[0034] Determine the time-domain position of the SSB symbol according to the transmission position CASE.

[0035] The transmission of the SSB symbol is cyclical, which can be determined by the SSB time-domain transmission cycle parameter. Currently, the configurable cycle periods include 5 ms, 10 ms, 20 ms, 40 ms, 80 ms, 160 ms, etc.; and there are several scenarios (CASE) for the specific transmission position of the SSB symbol in each cycle. The transmission position can be determined as which Case according to the frequency band information and subcarrier spacing configured in the cell.

[0036] In some embodiments, in determining the transmission position CASE of the SSB symbol within the cycle period, CASE may include the SSB time-domain scenarios with subcarrier spacings of 15 kHz, 30 kHz, 60 kHz, 120 kHz, and 240 kHz respectively. Among them:

[0037] Case A - 15 kHz SCS (subcarrier spacing): The possible positions where the first symbol of the SSB may be transmitted are {2, 8}+14·n. When the carrier frequency is less than or equal to 3 GHz, n = 0, 1; when the carrier frequency is greater than 3 GHz and less than or equal to 6 GHz, n = 0, 1, 2, 3.

[0038] Case B - 30 kHz SCS: The possible positions where the first symbol of the SSB may be transmitted are {4, 8, 16, 20}+28·n. When the carrier frequency is less than or equal to 3 GHz, n = 0; when the carrier frequency is greater than 3 GHz and less than or equal to 6 GHz, n = 0, 1.

[0039] Case C - 30 kHz SCS: The possible positions where the first symbol of the SSB may be transmitted are {2, 8}+14·n:

[0040] For the paired spectrum, when the carrier frequency is less than or equal to 3 GHz, n = 0, 1; when the carrier frequency is greater than 3 GHz and less than or equal to 6 GHz, n = 0, 1, 2, 3;

[0041] For the unpaired spectrum, when the carrier frequency is less than or equal to 2.4 GHz, n = 0, 1; when the carrier frequency is greater than 2.4 GHz and less than or equal to 6 GHz, n = 0, 1, 2, 3.

[0042] Case D - 120 kHz SCS: The possible positions where the first symbol of the SSB may be transmitted are {4, 8, 16, 20}+28·n. When the carrier frequency is greater than 6 GHz, n = 0, 1, 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 15, 16, 17, 18;

[0043] Case E - 240kHz SCS: The possible transmission positions of the first symbol of the SSB are {8, 12, 16, 20, 32, 36, 40, 44} + 56·n. When the carrier frequency is greater than 6 GHz, n = 0, 1, 2, 3, 5, 6, 7, 8.

[0044] It can be seen that for different cases, there are multiple possible positions of the SSB in the time domain within one period, which can be finally determined by the specific position parameters of the SSB in one period. For example, in Case B, when the carrier frequency is less than or equal to 3 GHz and n = 0, there are four possible transmission positions of the first symbol of the SSB, which are {4, 8, 16, 20}. According to the specific position parameters, it can be finally determined which of these four positions it is.

[0045] In some embodiments, calculating the corresponding voltage standing wave ratio based on the feedback signal and the reflection signal corresponding to the SSB symbol may include:

[0046] Based on the feedback signal and the reflection signal corresponding to the SSB symbol, convert to the frequency domain to find the corresponding SSB symbol, and calculate the corresponding voltage standing wave ratio. That is, when calculating the voltage standing wave ratio, it is necessary to find the corresponding SSB symbol in the frequency domain for calculation.

[0047] In some embodiments, before converting to the frequency domain to find the corresponding SSB symbol, it further includes:

[0048] Determine the frequency domain position of the SSB symbol according to the cell configuration information. Among them, the timing of determining the frequency domain position of the SSB symbol according to the cell configuration information can be before calculating the voltage standing wave ratio; generally, it can be at S101, that is, when determining the time domain position of the SSB symbol according to the cell configuration information, the frequency domain position of the SSB symbol can also be confirmed at the same time.

[0049] In some embodiments, determining the frequency domain position of the SSB symbol according to the cell configuration information may include:

[0050] Determine the center frequency point SS of the SSB symbol REF ;

[0051] Determine the center frequency point F of the 5G NR carrier REF ;

[0052] Based on the center frequency point of the SSB symbol and the center frequency point of the 5G NR carrier, determine the frequency domain position of the SSB symbol.

[0053] In some embodiments, determining the center frequency point of the SSB symbol may include:

[0054] Determine the center frequency of the SSB symbol according to the Global Synchronization Channel Number (GSCN). The SSB frequency domain position can be determined by the GSCN (Global Synchronization Channel Number). Each GSCN corresponds to an SS REF , which is the frequency domain position of RE0 of RB10 of the SSB. Please refer to Table 1:

[0055] Table 1

[0056]

[0057] The calculation methods of N and M in the above table are as follows:

[0058] Below 3 GHz: N is the result of rounding GSCN divided by 3, and M=(GSCN - 3*N)*2 + 3;

[0059] Above 3 GHz: N = GSCN - 7499;

[0060] After calculating M and N based on GSCN, the SS can be calculated REF .

[0061] In some embodiments, determining the center frequency of a 5G NR (New Radio) carrier may include:

[0062] Determine the center frequency of the 5G NR carrier according to the Absolute Radio Frequency Channel Number (ARFCN). The ARFCN (Absolute Radio Frequency Channel Number) is used to indicate the center frequency F of the 5G NR carrier REF , and their relationship is shown in the following formula: F REF = F REF-Offs + ΔF Global (N REF – N REF-Offs ); The relevant parameters are shown in Table 2:

[0063] Table 2

[0064] Frequency Band (MHz) <![CDATA[ΔF Global (kHz)]]> <![CDATA[F REF-Offs (MHz)]]> <![CDATA[N REF-Offs > <![CDATA[N REF range]]> 0–3000 5 0 0 0–599999 3000–24250 15 3000 600000 600000–2016666

[0065] The standing wave ratio calculation method provided in this embodiment determines the time domain position of the SSB synchronization / broadcast block symbol according to the cell configuration information; based on the time domain position, collects the feedback signal and the reflection signal corresponding to the SSB symbol; based on the feedback signal and the reflection signal corresponding to the SSB symbol, calculates the corresponding standing wave ratio. In some implementation processes, by determining the time domain position of the SSB symbol, accurate acquisition of the feedback signal and the reflection signal corresponding to the SSB symbol is achieved, thereby providing the possibility for accurately calculating the corresponding standing wave ratio, and the standing wave ratio calculation of 5G NR signals can be realized.

[0066] Embodiment 2:

[0067] This embodiment provides a method for calculating the standing wave ratio. Please refer to Figure 3 which includes:

[0068] S301. Cell establishment. The CPU (Central Processing Unit) sends the 5G NR related cell configuration information to the DSP (Digital Signal Process), including ARFCN, GSCN, SSB time domain transmission period, the specific position of SSB in one cycle, etc.

[0069] S302. The DSP calculates the time domain position and frequency domain position of the SSB symbol of 5G NR according to the cell configuration information sent by the CPU.

[0070] Among them, the method for confirming the SSB time domain position is as follows:

[0071] The SSB transmission is periodic and cyclic, which is determined by the SSB time domain transmission period parameter. Currently, the configurable cycle periods are 5ms, 10ms, 20ms, 40ms, 80ms, and 160ms;

[0072] There are five positions, namely CaseA, B, C, D, and E, for the specific transmission position of the SSB in each cycle. The transmission position can be determined as which Case according to the frequency band information and subcarrier spacing configured for the cell.

[0073] For different Cases, there are n possible positions where the SSB appears in the time domain within one cycle, which can be finally determined by the specific position parameter of the SSB in one cycle.

[0074] The method for confirming the SSB frequency domain position is as follows:

[0075] Calculate the center frequency point (SSREF) of the SSB symbol. According to Section 5.4.3.1 of Protocol 38101-1-f40, the SSB frequency domain position can be determined by the GSCN (Global Synchronization Channel Number). Each GSCN corresponds to an SS REF which is the frequency domain position of RE0 of RB10 of the SSB.

[0076] Calculate the center frequency point of the 5G NR carrier. According to Section 5.4.2.1 of Protocol 38101-1-f40, the ARFCN (Absolute Radio Frequency Channel Number) is used to indicate the 5G NR carrier center frequency F REF .

[0077] After knowing the ARFCN and GSCN, F can be known. REF and SS REF Furthermore, the position of the SSB relative to the carrier center can be known, and the SSB can be found in the frequency domain.

[0078] S303. The CPU periodically notifies the DSP to initiate the VSWR detection.

[0079] S304. The DSP configures the FPGA (Field Programmable Gate Array) to collect 5G NR SSB symbols in the time domain. The maximum transmission period of the SSB is 160 ms, the air interface radio frame length is 10 ms, and it is numbered from 0. The FPGA generates a sampling frame header starting from frame 0, and then generates a sampling frame header every 16 radio frames. The DSP calculates the specific symbol position in one SSB transmission period, starting from the 160 ms sampling frame header, calculates the number of points of the SSB position relative to the sampling frame header, and configures it for the FPGA, and the FPGA accurately collects the SSB symbols.

[0080] S305. The DSP converts the feedback and reflection signals corresponding to the SSB symbols collected in a time-sharing manner to the frequency domain to find the SSB symbols, completes the VSWR calculation, and returns the VSWR value to the CPU.

[0081] Embodiment 3:

[0082] This embodiment provides a VSWR calculation device. Please refer to Figure 4 . The device includes:

[0083] A position determination module 41, configured to determine the time-domain position of the SSB synchronization / broadcast block symbol according to the cell configuration information;

[0084] An acquisition module 42, configured to acquire the feedback signal and the reflection signal corresponding to the SSB symbol based on the time-domain position;

[0085] A calculation module 43, configured to calculate the corresponding VSWR based on the feedback signal and the reflection signal corresponding to the SSB symbol.

[0086] In the related art, the vector VSWR calculation function is used to implement the VSWR calculation and detection. In the RRU system, the vector VSWR function needs to collect the feedback and reflection signals in a time-sharing manner and convert them to the frequency domain to calculate the VSWR of the desired frequency point. Since it is time-sharing acquisition, and 5G NR performs resource scheduling in the frequency domain in units of RBs, a corresponding VSWR calculation scheme needs to be designed for 5G NR. In order to successfully calculate the VSWR, it is necessary to realize that there are signals at the same frequency point when the feedback and reflection signals collected in a time-sharing manner are converted to the frequency domain, so that the VSWR can be correctly calculated.

[0087] Based on the cell configuration information, the time-domain position of the SSB symbol can be determined; the cell configuration information includes, but is not limited to, the following information: ARFCN, GSCN, SSB time-domain transmission period, and the specific position of the SSB in one cycle; wherein, in some embodiments, determining the time-domain position of the SSB symbol based on the cell configuration information may include:

[0088] Determine the cycle period of the SSB symbol;

[0089] Determine the transmission position scenario CASE of the SSB symbol within the cycle period;

[0090] Based on the transmission position CASE, determine the time-domain position of the SSB symbol.

[0091] The transmission of the SSB symbol is periodic and cyclic, which can be determined by the SSB time-domain transmission period parameter. Currently, the configurable cycle periods include 5ms, 10ms, 20ms, 40ms, 80ms, 160ms, etc.; and there are several scenarios for the specific transmission position of the SSB symbol in each cycle. The transmission position of which Case can be determined according to the frequency band information and subcarrier spacing configured for the cell.

[0092] In some embodiments, in determining the transmission position CASE of the SSB symbol within the cycle period, CASE may include the SSB time-domain scenarios with subcarrier spacings of 15kHz, 30kHz, 60kHz, 120kHz, and 240kHz respectively.

[0093] In some embodiments, calculating the corresponding standing wave ratio based on the feedback signal and reflection signal corresponding to the SSB symbol may include:

[0094] Based on the feedback signal and reflection signal corresponding to the SSB symbol, convert to the frequency domain to find the corresponding SSB symbol and calculate the corresponding standing wave ratio. That is to say, when calculating the standing wave ratio, it is necessary to find the corresponding SSB symbol in the frequency domain for calculation.

[0095] In some embodiments, before converting to the frequency domain to find the corresponding SSB symbol, it further includes:

[0096] Based on the cell configuration information, determine the frequency-domain position of the SSB symbol. Among them, the timing of determining the frequency-domain position of the SSB symbol based on the cell configuration information can be before calculating the standing wave ratio; generally speaking, it can be at S101, that is, when determining the time-domain position of the SSB symbol according to the cell configuration information, the frequency-domain position of the SSB symbol can also be confirmed at the same time.

[0097] In some embodiments, determining the frequency-domain position of the SSB symbol based on the cell configuration information may include:

[0098] Determine the center frequency point SS of the SSB symbolREF ;

[0099] Determine the central frequency point F of the 5G NR carrier REF ;

[0100] Based on the central frequency point of the SSB symbol and the central frequency point of the 5G NR carrier, determine the frequency domain position of the SSB symbol.

[0101] In some embodiments, determining the central frequency point of the SSB symbol may include:

[0102] Determine the central frequency point of the SSB symbol according to the global synchronization channel number GSCN.

[0103] In some embodiments, determining the central frequency point of the 5G NR (New Radio) carrier may include:

[0104] Determine the central frequency point of the 5G NR carrier according to the absolute radio frequency channel number ARFCN.

[0105] The standing wave ratio calculation device provided in this embodiment determines the time domain position of the SSB synchronization / broadcast block symbol according to the cell configuration information; based on the time domain position, collects the feedback signal and the reflection signal corresponding to the SSB symbol; based on the feedback signal and the reflection signal corresponding to the SSB symbol, calculates the corresponding standing wave ratio. In some implementation processes, by determining the time domain position of the SSB symbol, accurate acquisition of the feedback signal and the reflection signal corresponding to the SSB symbol is achieved, thereby providing the possibility for accurately calculating the corresponding standing wave ratio, and the standing wave ratio calculation of the 5G NR signal can be realized.

[0106] Embodiment 4:

[0107] This embodiment also provides a network device. Please refer to Figure 5 , which includes a processor 51, a memory 52, and a communication bus 53;

[0108] The communication bus 53 is used to realize the connection and communication between the processor 51 and the memory 52;

[0109] The processor 51 is used to execute one or more computer programs stored in the memory 52 to implement the steps in the standing wave ratio calculation method in the above embodiments, which will not be elaborated here.

[0110] This embodiment also provides a computer-readable storage medium, which includes volatile or non-volatile, removable or non-removable media implemented in any method or technology for storing information such as computer-readable instructions, data structures, computer program modules, or other data. The computer-readable storage medium includes, but is not limited to, RAM (Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable Read Only Memory), flash memory or other memory technologies, CD-ROM (Compact Disc Read-Only Memory), digital versatile disc (DVD) or other optical disc storage, magnetic cassette, tape, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer.

[0111] The computer-readable storage medium in this embodiment can be used to store one or more computer programs, and the one or more computer programs stored therein can be executed by one or more processors to implement the steps of the standing wave ratio calculation method in the above embodiments.

[0112] This embodiment also provides a computer program (or computer software), which can be distributed on a computer-readable medium and executed by a computable device to implement the steps of the standing wave ratio calculation method in the above embodiments; and in some cases, at least one of the steps shown or described can be executed in a different order from that described in the above embodiments.

[0113] This embodiment also provides a computer program product, including a computer-readable device, on which the computer program as shown above is stored. In this embodiment, the computer-readable device can include the computer-readable storage medium as shown above.

[0114] It can be seen that those skilled in the art should understand that all or some of the steps in the methods disclosed above, and the functional modules / units in systems and devices, can be implemented as software (which can be realized by computer program codes executable by a computing device), firmware, hardware, and their appropriate combinations. In the hardware implementation, the division between the functional modules / units mentioned above does not necessarily correspond to the division of physical components; for example, a physical component can have multiple functions, or a function or step can be executed by several physical components in cooperation. Some or all physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit.

[0115] In addition, as is well known to those of ordinary skill in the art, a communication medium generally contains computer-readable instructions, data structures, computer program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanisms, and can include any information delivery medium. Therefore, the present invention is not limited to any specific combination of hardware and software.

[0116] The above content is a further detailed description of the embodiments of the present invention in combination with specific implementation manners. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can still be made, and all should be regarded as belonging to the protection scope of the present invention.

Claims

1. A method for calculating the standing wave ratio, comprising: Determining the time-domain position of the synchronization and broadcast SSB symbols according to the cell configuration information, where the cell configuration information includes at least one of an absolute radio frequency channel number, a global synchronization channel number, an SSB time-domain transmission period, and the specific position of the SSB in one period; Collecting the feedback signal and the reflection signal corresponding to the SSB symbol based on the time-domain position; Calculating the corresponding standing wave ratio based on the feedback signal and the reflection signal corresponding to the SSB symbol; The determining the time-domain position of the SSB symbol according to the cell configuration information includes: Determining the cycle period of the SSB symbol; Determining the transmission position scenario CASE of the SSB symbol within the cycle period; Determining the time-domain position of the SSB symbol according to the transmission position CASE.

2. The VSWR calculation method according to claim 1, characterized in that In the determining the transmission position CASE of the SSB symbol within the cycle period, the CASE includes SSB time-domain scenarios with subcarrier spacings of 15 kHz, 30 kHz, 60 kHz, 120 kHz, and 240 kHz respectively.

3. The VSWR calculation method according to any one of claims 1-2, characterized in that The calculating the corresponding standing wave ratio based on the feedback signal and the reflection signal corresponding to the SSB symbol includes: Converting to the frequency domain based on the feedback signal and the reflection signal corresponding to the SSB symbol to find the corresponding SSB symbol, and calculating the corresponding standing wave ratio.

4. The VSWR calculation method according to claim 3, characterized in that Before converting to the frequency domain to find the corresponding SSB symbol, it further includes: Determining the frequency-domain position of the SSB symbol according to the cell configuration information.

5. The VSWR calculation method according to claim 4, characterized in that, The determining the frequency-domain position of the SSB symbol according to the cell configuration information includes: Determining the center frequency of the SSB symbol; Determining the center frequency of the 5G NR (New Radio) carrier; Determining the frequency-domain position of the SSB symbol based on the center frequency of the SSB symbol and the center frequency of the 5G NR carrier.

6. The VSWR calculation method according to claim 5, characterized in that, The determining the center frequency of the SSB symbol includes: Determining the center frequency of the SSB symbol according to the global synchronization channel number GSCN.

7. The VSWR calculation method according to claim 5, characterized in that, The determining the center frequency of the 5G NR (New Radio) carrier includes: Determining the center frequency of the 5G NR carrier according to the absolute radio frequency channel number ARFCN.

8. A standing wave ratio calculation device, comprising: A position determination module for determining the time-domain position of the synchronization and broadcast SSB symbols according to the cell configuration information, where the cell configuration information includes at least one of an absolute radio frequency channel number, a global synchronization channel number, an SSB time-domain transmission period, and the specific position of the SSB in one period; A collection module for collecting the feedback signal and the reflection signal corresponding to the SSB symbol based on the time-domain position; A calculation module for calculating the corresponding standing wave ratio based on the feedback signal and the reflection signal corresponding to the SSB symbol; The position determination module is specifically configured to: determine the cycle period of the SSB symbol; determine the transmission position scenario CASE of the SSB symbol within the cycle period; determine the time-domain position of the SSB symbol according to the transmission position CASE.

9. A network device, comprising a processor, a memory, and a communication bus; The communication bus is used to implement the connection and communication between the processor and the memory; The processor is configured to execute one or more computer programs stored in the memory to implement the steps of the VSWR calculation method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores one or more computer programs, and the one or more computer programs can be executed by one or more processors to implement the steps of the VSWR calculation method according to any one of claims 1 to 7.

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