Cell searching method for industrial network, and industrial terminal and industrial base station

Abstract

Disclosed in the present application are a cell searching method for an industrial network, and an industrial terminal and an industrial base station. The method comprises: receiving air interface data of a search frequency point; parsing broadcast information in the air interface data, so as to obtain cell channel information, and whitelist information of a base station corresponding to the air interface data, wherein the whitelist information comprises terminal information associated with the base station; and when a terminal successfully matches the terminal information in the whitelist information, stopping cell searching and determining the cell channel information to be a cell search result.

Description

Industrial network cell search method, industrial terminal and industrial base station

[0001] This application claims priority to Chinese patent application No. 202311229020.1 filed on September 21, 2023, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of industrial network technology, and in particular to a cell search method, an industrial terminal, and an industrial base station for an industrial network. Background Art

[0003] Wireless technology is increasingly being used in industrial network communications, with Wi-Fi, 4G, and 5G being the most widely adopted. Currently, wireless terminals and base stations must synchronize before interacting with each other. After powering on, a terminal must search for cell information before initiating random access. Typically, after completing the synchronization information search, the terminal's physical layer obtains the physical cell identifier and cell signal strength, reports this information to the radio resource controller, which then selects the cell with the best signal strength for access. Technical issues

[0004] However, this approach can easily cause industrial terminals to access the wrong base station, leading to functional abnormalities, and the cell search will stop after searching all frequency domain resources, resulting in a long cell search time for terminals in the industrial network, affecting usage. Technical Solutions

[0005] The main purpose of this application is to provide a cell search method, industrial terminal and industrial base station for an industrial network, aiming to ensure the normal function of the industrial terminal while shortening the cell search time.

[0006] To achieve the above objectives, the present application provides a cell search method for an industrial network, which is applied to a terminal. The cell search method for an industrial network includes the following steps:

[0007] Receive air interface data of search frequency;

[0008] Parsing the broadcast information in the air interface data to obtain cell channel information and whitelist information of a base station corresponding to the air interface data, wherein the whitelist information includes terminal information associated with the base station;

[0009] When the terminal successfully matches the terminal information in the whitelist information, the cell search is stopped and the cell channel information is determined as the cell search result.

[0010] In one embodiment, the step of parsing the broadcast information in the air interface data to obtain cell channel information and whitelist information of the base station corresponding to the air interface data includes:

[0011] Parsing the primary system information in the air interface data to obtain the indication scheduling information of the cell channel information and the secondary system information;

[0012] determining whether there is secondary system information according to the indication scheduling information;

[0013] When it is determined that the secondary system information exists, the secondary system information in the air interface data is parsed according to the indication scheduling information to obtain the whitelist information.

[0014] In one embodiment, the terminal information includes at least one of the following information: a physical address, a terminal code, and a logical address.

[0015] In one embodiment, after the step of parsing the broadcast information in the air interface data to obtain cell channel information and whitelist information of the base station corresponding to the air interface data, the step further includes:

[0016] When the terminal fails to match the terminal information in the whitelist information, a new search frequency is configured, and the process returns to the step of receiving the air interface data of the search frequency until the search range is exceeded.

[0017] In one embodiment, the step of receiving the air interface data of the search frequency point includes: receiving the air interface data of the search frequency point according to the subcarrier spacing;

[0018] After the step of parsing the broadcast information in the air interface data to obtain cell channel information and whitelist information of terminals allowed to access by the base station corresponding to the air interface data, the method further includes:

[0019] When the terminal fails to match the terminal information in the whitelist information, if there is a new subcarrier spacing, the process returns to executing the step of receiving the air interface data of the search frequency according to the subcarrier spacing; if there is no new subcarrier spacing, the process configures a new search frequency and then returns to executing the step of receiving the air interface data of the search frequency according to the subcarrier spacing.

[0020] In one embodiment, after the step of parsing the broadcast information in the air interface data, the method further includes:

[0021] When the parsing is successful, obtaining the cell channel information and the whitelist information;

[0022] When the parsing fails, a new search frequency is configured, and the process returns to the step of receiving air interface data of the search frequency until the search range is exceeded.

[0023] In one embodiment, after the step of receiving the air interface data of the search frequency point, the method further includes:

[0024] Detecting whether the air interface data contains a synchronization signal of a base station;

[0025] When the synchronization signal is detected, executing the step of parsing the broadcast information in the air interface data;

[0026] When the synchronization signal is not detected, a new search frequency is configured, and the process returns to the step of receiving air interface data of the search frequency until the search range is exceeded.

[0027] In one embodiment, the step of detecting whether the air interface data contains a synchronization signal of a base station includes:

[0028] It is detected in sequence whether there is a synchronization signal of the corresponding base station according to the base station identifier in the air interface data.

[0029] In addition, to achieve the above-mentioned purpose, the present application also proposes a cell search method for an industrial network, which is applied to a base station. The cell search method for an industrial network includes the following steps:

[0030] Acquire whitelist information, where the whitelist information includes terminal information associated with the base station;

[0031] Broadcast information including the whitelist information is periodically sent so that when a terminal identifies that the terminal successfully matches the terminal information in the whitelist information during a cell search, the terminal stops searching the cell and determines the cell channel information as a cell search result.

[0032] In one embodiment, the step of periodically sending broadcast information including the whitelist information includes:

[0033] Periodically sending primary system information, where the primary system information includes cell channel information and indication scheduling information of secondary system information;

[0034] The secondary system information is sent periodically, where the secondary system information includes the whitelist information.

[0035] In one embodiment, the terminal information includes at least one of the following information: a physical address, a terminal code, and a logical address.

[0036] In addition, in order to achieve the above-mentioned purpose, the present application also proposes an industrial terminal, which includes: a memory, a processor, and a cell search program stored on the memory and runnable on the processor. When the cell search program is executed by the processor, the steps of any of the above cell search methods applied to the terminal are implemented.

[0037] In addition, in order to achieve the above-mentioned purpose, the present application also proposes an industrial base station, which includes: a memory, a processor, and a cell search program stored on the memory and runnable on the processor. When the cell search program is executed by the processor, the steps of any of the above cell search methods applied to the base station are implemented. Beneficial effects

[0038] The present application proposes a cell search method for an industrial network. After a terminal receives air interface data of a search frequency, the method parses the broadcast information in the air interface data to obtain cell channel information and base station whitelist information. When the terminal information successfully matches the terminal information in the whitelist information, the cell search is stopped and the cell channel information is determined as the cell search result. Based on this, there is no need to end the cell search after all frequency domain resources are searched. The cell search time can be effectively shortened, and at the same time, it is ensured that the terminal is associated with the base station to which it is connected, so as to improve the accuracy of the base station to which the terminal is connected, ensure that the base station can provide accurate and effective network services to the terminal, ensure that the normal functions of the terminal are realized, thereby ensuring the normal functions of the industrial terminal while shortening the cell search time. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] FIG1 is a schematic diagram of the hardware structure of an industrial terminal and an industrial base station involved in the operation of an embodiment of a cell search method for an industrial network of the present application;

[0040] FIG2 is a flow chart of an embodiment of a cell search method applied to a terminal according to the present application;

[0041] FIG3 is a flow chart of another embodiment of a cell search method applied to a terminal according to the present application;

[0042] FIG4 is a schematic diagram of the contents of primary system information and secondary system information involved in an embodiment of a cell search method applied to a terminal of the present application;

[0043] FIG5 is a flow chart of another embodiment of a cell search method applied to a terminal in the present application;

[0044] FIG6 is a flow chart of an embodiment of a cell search method applied to a base station in the present application;

[0045] FIG7 is a schematic diagram of periodically sending primary system information and secondary system information involved in an embodiment of a cell search method applied to a base station in the present application.

[0046] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. Modes for Carrying Out the Invention

[0047] It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0048] The embodiment of the present application provides an industrial terminal 1, such as an industrial computer.

[0049] In the embodiment of the present application, referring to Figure 1 , an industrial terminal 1 includes a processor 1001, such as a CPU, a memory 1002, a timer 1003, and a wireless communication module 1004. These components communicate with each other via a communication bus. Memory 1002 can be high-speed RAM or non-volatile memory, such as a disk drive. Memory 1002 can also optionally be a storage device independent of processor 1001.

[0050] The wireless communication module 1004 is used for wireless communication connection with external devices. The wireless communication module 1004 includes a 5G communication module, a WIFI module, etc.

[0051] Those skilled in the art will understand that the device structure shown in FIG1 does not constitute a limitation on the device, and may include more or fewer components than shown, or a combination of certain components, or a different arrangement of components.

[0052] As shown in FIG. 1 , the memory 1002 as a computer storage medium may include a cell search program.

[0053] In the device shown in FIG. 1 , the processor 1001 may be configured to call a cell search program stored in the memory 1002 and execute relevant steps of the cell search method in the following embodiments.

[0054] An embodiment of the present application also provides a cell search method for an industrial network applied to the above-mentioned industrial terminal.

[0055] 2 , an embodiment of a cell search method for an industrial network of the industrial terminal of the present application is proposed. In this embodiment, the cell search method includes:

[0056] Step S10, receiving air interface data of the search frequency;

[0057] The search frequency point here may be a preset fixed frequency point, or a frequency point obtained by adjusting the preset fixed frequency point.

[0058] Air interface data is data received by the industrial terminal based on the wireless transmission specifications between the industrial terminal and the base station.

[0059] The system frequency sweep information pre-stored in the industrial terminal can be used to configure a search frequency point according to the system frequency sweep information, and receive air interface data based on the search frequency point.

[0060] It should be noted that the air interface data received here can be data from one industrial base station or data from multiple industrial base stations. Specifically, the air interface data is all data received by the industrial terminal from the wireless link based on the search frequency.

[0061] Step S20: parsing the broadcast information in the air interface data to obtain cell channel information and whitelist information of the base station corresponding to the air interface data, wherein the whitelist information includes terminal information associated with the base station;

[0062] Industrial base stations can access corresponding whitelist information from internal storage or external devices. This whitelist information includes terminal information for all industrial terminals associated with the industrial base station. Industrial base stations are used to provide wireless network services to their associated industrial terminals, ensuring normal function of the industrial terminals. Different industrial base stations correspond to different whitelist information. Industrial base stations can periodically broadcast information including whitelist information via wireless links.

[0063] The received air interface data is demodulated according to preset rules. If the demodulation is successful, the cell channel information and whitelist information can be obtained.

[0064] Cell channel information is used to synchronize industrial base stations and industrial terminals. This information includes, but is not limited to, system frame number, system bandwidth, number of antenna ports, cell ID, carrier number, radio frame length, timeslot structure, CIF indicator, DRS power, expected received USS power, and adjustment step size.

[0065] Step S30: When the terminal successfully matches the terminal information in the whitelist information, the cell search is stopped and the cell channel information is determined as the cell search result.

[0066] If the whitelist contains the terminal information of an industrial terminal, the terminal is considered to have successfully matched the terminal information in the whitelist, and the cell search can be stopped. Stopping the cell search here means no longer retrieving air interface data based on other search frequencies to analyze cell channel information. After the cell search is stopped, the currently parsed cell channel information is reported as the cell search result. Subsequent industrial terminals can access their associated industrial base stations at any time based on the cell channel information in the cell search result.

[0067] A cell search method is proposed in an embodiment of the present application. After a terminal receives air interface data of a search frequency, the method parses the broadcast information in the air interface data to obtain cell channel information and base station whitelist information. When the terminal information successfully matches the terminal information in the whitelist information, the cell search is stopped and the cell channel information is determined as the cell search result. Based on this, there is no need to end the cell search after all frequency domain resources are searched. The cell search time can be effectively shortened, and at the same time, it is ensured that the terminal is associated with the base station to which it is connected, so as to improve the accuracy of the base station to which the terminal is connected, ensure that the base station can provide accurate and effective network services to the terminal, ensure that the normal functions of the terminal are realized, thereby ensuring the normal functions of the industrial terminal while shortening the cell search time.

[0068] In the above embodiment, the terminal information includes at least one of the following information: a physical address, a terminal code, and a logical address.

[0069] In one implementation, if the whitelist information obtained by parsing the air interface data includes the physical address of the current industrial terminal, the cell search is stopped.

[0070] In another implementation, if the whitelist information obtained by parsing the air interface data includes the logical address of the current industrial terminal, the cell search is stopped.

[0071] In yet another implementation, if the whitelist information obtained by parsing the air interface data includes the physical address of the current industrial terminal, the cell search is stopped.

[0072] In this embodiment, the physical address, terminal code and logical address can all be used as unique identifiers of industrial terminals. Using this information to construct a whitelist is conducive to ensuring the accuracy of matching industrial base stations with industrial terminals, thereby further ensuring the normal function of industrial terminals while shortening cell search time.

[0073] Based on the above embodiment, another embodiment of the cell search method of the industrial network applied to the industrial terminal of the present application is proposed. In this embodiment, referring to FIG3 , the step S20 includes:

[0074] Step S21, parsing the primary system information in the air interface data to obtain the cell channel information and the indication scheduling information of the secondary system information;

[0075] The primary system information (as shown in Figure 4(a)) includes cell channel information and indication scheduling information for secondary system information. The indication scheduling information includes first indication information, second indication information, and third indication information. The first indication information indicates whether secondary system information exists, the second indication information indicates the time domain resource of the secondary system information in the air interface data, and the third indication information indicates the frequency domain resource of the secondary system information in the air interface data.

[0076] Step S22, determining whether there is secondary system information according to the indication scheduling information;

[0077] Determine whether the secondary system information exists according to the first indication information (as shown in FIG4( b )).

[0078] Step S23: When it is determined that the secondary system information exists, the secondary system information in the air interface data is parsed according to the indication scheduling information to obtain the whitelist information.

[0079] When it is determined that the secondary system information exists, the secondary system information in the air interface data is parsed according to the second indication information and the third indication information to obtain the whitelist information.

[0080] In this embodiment, the preset terminal information in the whitelist information is a preset physical address, and each preset physical address is 6 bytes long.

[0081] In this embodiment, when the industrial base station periodically sends broadcast information, the primary system information is sent first, and then the secondary system information is sent.

[0082] In this embodiment, indication information of the auxiliary system information is set in the main system information. Based on this, the industrial terminal can accurately know whether there is whitelist information and the location of the whitelist information resource through the indication information. When it is determined that there is auxiliary system information, the auxiliary system information is further analyzed, which is conducive to reducing unnecessary information parsing operations in the cell search process, and accurately and quickly analyzing the whitelist information, thereby improving the efficiency of the cell search process and further shortening the time to obtain cell search results.

[0083] Based on any of the above embodiments, another embodiment of the cell search method of the industrial network applied to the industrial terminal of the present application is proposed. In this embodiment, referring to FIG5 , after step S20, the method further includes:

[0084] Step S40: When the terminal fails to match the terminal information in the whitelist information, a new search frequency is configured, and the process returns to the step of receiving the air interface data of the search frequency until the search range is exceeded.

[0085] The search range may include multiple preset frequencies, and the preset frequencies among the multiple preset frequencies that have not been used for cell search are used as new search frequencies; if all frequencies among the multiple preset frequencies are used as search frequencies, the cell search is stopped.

[0086] The search range may also include a preset number of frequency points that meet a preset relationship. The total number of search frequency points for cell search is less than the preset number and other frequency points that meet the preset relationship with the current search frequency point are determined as new search frequency points; otherwise, the cell search is stopped.

[0087] After configuring a new search frequency, air interface data may be acquired based on the new search frequency, and cell search may be performed again according to the steps in the above embodiment.

[0088] In this embodiment, when the whitelist information does not include the terminal information of the industrial terminal, it can be considered that the corresponding base station cannot provide the required services for the normal function of the industrial terminal. At this time, a new search frequency is reconfigured to perform cell search, thereby ensuring that the industrial terminal can smoothly access the associated industrial base station and ensure the realization of normal functions.

[0089] In this embodiment, the step of receiving air interface data of the search frequency includes: receiving the air interface data of the search frequency according to the subcarrier spacing. After the step of parsing the broadcast information in the air interface data to obtain cell channel information and whitelist information of terminals allowed to access by the base station corresponding to the air interface data, the step further includes: when the terminal fails to successfully match the terminal information in the whitelist information, if a new subcarrier spacing exists, returning to the step of receiving the air interface data of the search frequency according to the subcarrier spacing; if no new subcarrier spacing exists, configuring a new search frequency and returning to the step of receiving the air interface data of the search frequency according to the subcarrier spacing.

[0090] The subcarrier spacing can be a pre-set fixed parameter or a parameter obtained by adjusting the pre-set subcarrier spacing. The subcarrier spacing can be 15, 30, 60, etc.

[0091] A search frequency corresponds to multiple subcarrier intervals. When there is an unsearched subcarrier interval in the subcarrier interval corresponding to the current search frequency, it can be used as a new subcarrier interval to sample air interface data, and the cell search can be performed according to the scheme mentioned in the above embodiment; when the subcarrier intervals corresponding to the current search frequency have all been searched for cells, a new search frequency can be configured and the air interface data of the corresponding frequency can be received based on the subcarrier interval.

[0092] In this embodiment, performing cell search on the search frequency point according to the subcarrier spacing is conducive to improving the accuracy of the cell search, thereby ensuring the accuracy of the industrial terminal accessing the industrial base station, and further ensuring the realization of the normal functions of the industrial base station.

[0093] Based on any of the above embodiments, in this embodiment, after the step of parsing the broadcast information in the air interface data, it also includes: when the parsing is successful, obtaining the cell channel information and the whitelist information; when the parsing fails, configuring a new search frequency, and returning to execute the step of receiving the air interface data of the search frequency until the search range is exceeded.

[0094] Here, when the air interface data cannot be parsed to find the cell channel information and / or whitelist information, it can be considered that the base station corresponding to the air interface data is not a base station that can be used to provide services to the industrial terminal. At this time, the current air interface data will no longer be processed further, but a new search frequency will be reconfigured to receive new air interface data for cell search, thereby ensuring that the industrial terminal can smoothly and accurately access its associated base station.

[0095] Based on any of the above embodiments, in this embodiment, after the step of receiving the air interface data of the search frequency, it also includes: detecting whether there is a synchronization signal of the base station in the air interface data; when the synchronization signal is detected, executing the step of parsing the broadcast information in the air interface data; when the synchronization signal is not detected, configuring a new search frequency, and returning to the step of receiving the air interface data of the search frequency until the search range is exceeded.

[0096] The synchronization signal is a reference signal used to establish network synchronization between the industrial terminal and the industrial base station, so that the industrial base station can adjust its network configuration parameters when the industrial base station is connected to the industrial terminal.

[0097] When the air interface data contains the synchronization signal of the base station, it indicates that the corresponding industrial base station allows the terminal to access; when the air interface data does not contain the synchronization signal of the base station, it indicates that the corresponding base station does not allow the terminal to access. At this time, a new search frequency is reconfigured to search the cell without further processing the air interface data. This is conducive to improving the efficiency of the cell search and further ensuring the normal function of the industrial terminal.

[0098] In this embodiment, the step of detecting whether the air interface data contains a synchronization signal of a base station includes: detecting whether the synchronization signal of a corresponding base station exists according to base station identifiers in the air interface data in sequence.

[0099] In one embodiment, a base station identifier (base station ID) in air interface data may be identified. The identified base station identifiers may be one or more. Based on the base station identifiers, a rule for identifying the synchronization signal of the corresponding base station is determined. Based on the identification rule, it is determined whether the air interface data contains a corresponding synchronization signal. If more than one base station identifier is identified, all base station identifiers may be traversed, and synchronization signals in the air interface data may be detected based on each base station identifier in turn.

[0100] In this embodiment, synchronization signal detection is performed through the base station identifier in the air interface data, which is conducive to improving the comprehensiveness of synchronization signal detection and the accuracy of cell search, ensuring accurate access of industrial terminals to associated industrial base stations, and further ensuring the realization of normal functions of industrial terminals.

[0101] In order to better understand the cell search process of the industrial terminal in the embodiment of the present application, the entire cell search process of the industrial terminal is described below using a specific example:

[0102] Step 1: The industrial terminal configures the RF frequency based on the system frequency scan information and begins searching by frequency traversal. Once the frequency traversal is complete, the cell search stops and the search results are reported. Otherwise, proceed to the next step.

[0103] Step 2: Start cell search and matching for the frequency point by subcarrier traversal. Return to step 1 when subcarrier traversal is completed, otherwise proceed to the next step.

[0104] Step 3: Collect data transmitted from the air interface.

[0105] Step 4: Start synchronization signal detection according to the base station identification traversal. Return to step 2 after the base station identification traversal is completed, otherwise proceed to the next step.

[0106] Step 5: Check whether the synchronization is successful. If the synchronization is successful, proceed to the next step. Otherwise, return to step 4.

[0107] Step 6: Detect the primary system information and the secondary system information, and obtain the cell channel information and whitelist information.

[0108] Step 7: If the whitelist match fails, return to step 4. If the match succeeds, report the network search results (including cell channel information) and stop the cell search.

[0109] The embodiment of the present application proposes an industrial base station 2.

[0110] In the embodiment of the present application, referring to Figure 1 , the industrial base station 2 includes a processor 2001, such as a CPU, a memory 2002, a timer 2003, and a wireless communication module 2004. These components communicate with each other via a communication bus. The memory 2002 can be a high-speed RAM or a non-volatile memory, such as a disk drive. Alternatively, the memory 2002 can be a storage device independent of the processor 2001.

[0111] The wireless communication module 2004 is used for wireless communication connection with external devices. The wireless communication module 2004 includes a 5G communication module, a WIFI module, etc.

[0112] Those skilled in the art will understand that the device structure shown in FIG1 does not constitute a limitation on the device, and may include more or fewer components than shown, or a combination of certain components, or a different arrangement of components.

[0113] As shown in FIG. 1 , the memory 2002 as a computer storage medium may include a cell search program.

[0114] In the device shown in FIG1 , the processor 2001 may be configured to call a cell search program stored in the memory 2002 and execute relevant steps of the cell search method in the following embodiments.

[0115] An embodiment of the present application also provides a cell search method for an industrial network applied to the above-mentioned industrial base station.

[0116] 6 , an embodiment of a cell search method for an industrial network of the industrial base station of the present application is proposed. In this embodiment, the cell search method includes:

[0117] Step S100: obtaining whitelist information, where the whitelist information includes terminal information associated with the base station;

[0118] Industrial base stations can access corresponding whitelist information from internal storage or external devices. This whitelist information includes the preset terminal information of all industrial terminals associated with the industrial base station. Industrial base stations are used to provide wireless network services to their associated industrial terminals, ensuring normal function of the industrial terminals. Different industrial base stations correspond to different whitelist information.

[0119] The received air interface data is demodulated according to preset rules. If the demodulation is successful, the cell channel information and whitelist information can be obtained.

[0120] Step S200 , periodically sending broadcast information including the whitelist information, so that when a terminal identifies that the terminal successfully matches the terminal information in the whitelist information during a cell search process, the terminal stops the cell search and accesses the base station according to the cell channel information.

[0121] The industrial base station may periodically send broadcast information including whitelist information via a wireless link.

[0122] Broadcast information can be generated based on whitelist information and cell channel information.

[0123] Cell channel information is used to synchronize industrial base stations and industrial terminals. This information includes, but is not limited to, system frame number, system bandwidth, number of antenna ports, cell ID, carrier number, radio frame length, timeslot structure, CIF indicator, DRS power, expected received USS power, and adjustment step size.

[0124] In this embodiment, through the above method, when the industrial terminal searches for a cell, the base station can send whitelist information for the industrial terminal to determine whether to associate, so that the industrial terminal can stop searching for cells when it determines that it is associated with the industrial base station, and no longer search all cells, effectively reducing the cell search time, ensuring that only industrial terminals associated with the industrial base station can access the base station, so as to ensure that the base station can provide the accessed terminals with the services required for their normal functions, further reducing the cell search time of the industrial terminal while ensuring the normal implementation of the industrial terminal functions.

[0125] 7 , step S200 includes: periodically sending primary system information, the primary system information including cell channel information and scheduling information indicating secondary system information; and periodically sending the secondary system information, the secondary system information including the whitelist information.

[0126] The primary system information (MSI, as shown in Figure 4(a)), includes cell channel information and indication scheduling information for secondary system information. The indication scheduling information includes first indication information, second indication information, and third indication information. The first indication information indicates whether secondary system information exists, the second indication information indicates the time domain resource of the secondary system information in the air interface data, and the third indication information indicates the frequency domain resource of the secondary system information in the air interface data.

[0127] The secondary system information (SSI, as shown in FIG4(b) ) includes whitelist information. In this embodiment, the terminal information in the whitelist information is a physical address, and each physical address is 6 bytes long.

[0128] In this embodiment, during the process of periodically sending broadcast information, the primary system information is sent first and then the secondary system information is sent in each period.

[0129] In this embodiment, the broadcast information is sent for the main system information and the auxiliary system information, and the indication information of the auxiliary system information is set in the main system information. Based on this, the industrial terminal can accurately know whether there is whitelist information and the location of the whitelist information resource through the indication information. When it is determined that there is auxiliary system information, the auxiliary system information is further parsed, which is conducive to reducing unnecessary information parsing operations in the cell search process, and accurately and quickly analyzing the whitelist information, thereby improving the efficiency of the cell search process and further shortening the time to obtain cell search results.

[0130] The preset terminal information includes at least one of the following: a physical address, a terminal code, and a preset logical address. In this embodiment, the physical address, terminal code, and logical address can all serve as unique identifiers for industrial terminals. Using this information to construct a whitelist helps ensure accurate matching between industrial base stations and industrial terminals, further ensuring proper functionality of the industrial terminals while shortening cell search time.

[0131] In addition, an embodiment of the present application further provides a storage medium, on which a cell search program is stored. When the cell search program is executed by a processor, the relevant steps of any embodiment of the above cell search method are implemented.

[0132] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or system. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or system comprising the element.

[0133] The serial numbers of the above embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0134] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes a number of instructions for enabling a terminal device (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0135] The above are merely optional embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A cell search method for an industrial network, applied to a terminal, the cell search method comprising the steps of: Receive air interface data of search frequency; Parsing the broadcast information in the air interface data to obtain cell channel information and whitelist information of a base station corresponding to the air interface data, wherein the whitelist information includes terminal information associated with the base station; When the terminal successfully matches the terminal information in the whitelist information, the cell search is stopped and the cell channel information is determined as the cell search result.

2. The cell search method according to claim 1, wherein: The step of parsing the broadcast information in the air interface data to obtain cell channel information and white list information of base stations corresponding to the air interface data includes: Parsing the primary system information in the air interface data to obtain the indication scheduling information of the cell channel information and the secondary system information; Determining whether there is secondary system information according to the indication scheduling information; When it is determined that the secondary system information exists, the secondary system information in the air interface data is parsed according to the indication scheduling information to obtain the whitelist information.

3. The cell search method according to claim 1, wherein: The terminal information includes at least one of the following information: a physical address, a terminal code, and a logical address.

4. The cell search method according to claim 1, wherein: After the step of parsing the broadcast information in the air interface data to obtain the cell channel information and the white list information of the base station corresponding to the air interface data, the method further includes: When the terminal fails to match the terminal information in the whitelist information, a new search frequency is configured, and the process returns to the step of receiving the air interface data of the search frequency until the search range is exceeded.

5. The cell search method according to claim 4, wherein: The step of receiving the air interface data of the search frequency point includes: receiving the air interface data of the search frequency point according to the subcarrier spacing; After the step of parsing the broadcast information in the air interface data to obtain the cell channel information and the white list information of the base station that allows the access terminal corresponding to the air interface data, the method further includes: When the terminal fails to match the terminal information in the whitelist information, if there is a new subcarrier spacing, the step of receiving the air interface data of the search frequency according to the subcarrier spacing is returned to; if there is no new subcarrier spacing, the new search frequency is configured and the step of receiving the air interface data of the search frequency according to the subcarrier spacing is returned to.

6. The cell search method according to any one of claims 1 to 5, wherein: After the step of parsing the broadcast information in the air interface data, the method further includes: When the parsing is successful, the cell channel information and the whitelist information are obtained; When the parsing fails, a new search frequency is configured, and the process returns to the step of receiving air interface data of the search frequency until the search range is exceeded.

7. The cell search method according to any one of claims 1 to 5, wherein: After the step of receiving the air interface data of the search frequency point, the method further includes: Detecting whether the air interface data contains a synchronization signal of a base station; When the synchronization signal is detected, executing the step of parsing the broadcast information in the air interface data; When the synchronization signal is not detected, a new search frequency is configured, and the process returns to the step of receiving air interface data of the search frequency until the search range is exceeded.

8. The cell search method according to claim 7, wherein: The step of detecting whether the air interface data has a synchronization signal of a base station comprises: It is detected in turn whether there is a synchronization signal of the corresponding base station according to the base station identifier in the air interface data.

9. A cell search method for an industrial network, applied to a base station, the cell search method comprising the following steps: Acquire whitelist information, where the whitelist information includes terminal information associated with the base station; Broadcast information including the whitelist information is periodically sent, so that when the terminal recognizes that the terminal successfully matches the terminal information in the whitelist information during the cell search process, the cell search is stopped and the cell channel information is determined as the cell search result.

10. The cell search method according to claim 9, wherein: The step of periodically sending broadcast information including the whitelist information comprises: Periodically sending primary system information, where the primary system information includes cell channel information and indication scheduling information of secondary system information; The secondary system information is sent periodically, wherein the secondary system information includes the whitelist information.

11. The cell search method according to claim 9 or 10, wherein: The terminal information includes at least one of the following information: a physical address, a terminal code, and a logical address.

12. An industrial terminal, wherein: The industrial terminal comprises: a memory, a processor, and a cell search program stored in the memory and executable on the processor. When the cell search program is executed by the processor, the steps of the cell search method according to any one of claims 1 to 8 are implemented.

13. An industrial base station, wherein: The industrial base station comprises: a memory, a processor, and a cell search program stored in the memory and executable on the processor. When the cell search program is executed by the processor, the steps of the cell search method according to any one of claims 9 to 11 are implemented.

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