Communication method, related apparatus, terminal, and computer readable storage medium

Abstract

Embodiments of the present application provide a communication method, a related apparatus, a terminal, and a computer readable storage medium. The communication method comprises: the terminal initiates a first registration application to a first cell in a searched first tracking area code (TAC), the first cell being a cell among cells corresponding to the first TAC, and a communication standard corresponding to the first TAC being a first communication standard; when the first registration application is rejected and a rejection cause value is a preset value, on the basis of historical camping records, searching a cell in a second TAC, a communication standard corresponding to the second TAC being the first communication standard, and the second TAC being different from the first TAC. By adopting the technical solution provided in the present application, network search efficiency is improved, so that quicker discovery of a connectable cell in a TAC can be facilitated, thereby facilitating improvement of network camping capability.

Description

Communication method, related device, terminal and computer-readable storage medium

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on January 11, 2024, with application number 202410047801.7 and application name “Communication Methods, Related Devices, Terminals and Computer-readable Storage Medium”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a communication method, related devices, terminals, and computer-readable storage media. Background Art

[0003] According to the communication protocol (for example, the 3rd Generation Partnership Project (3GPP)), the terminal initiates a registration application to a cell in a certain tracking area code (TAC) searched. If the registration application is rejected and the reason value for rejection is a preset value (for example, #15), the terminal performs a full-band search on the current communication standard except for the TAC corresponding to the rejected registration application.

[0004] The fullband search of the terminal is very time-consuming, sometimes causing the terminal to drop to a low standard or lose the network, affecting the user experience.

[0005] Therefore, when the registration application is rejected and the reason value for rejection is a preset value, how to optimize the communication method is a technical problem that this application needs to solve. Summary of the Invention

[0006] The present application provides a communication method, related devices, terminals and computer-readable storage media, which are conducive to improving network search efficiency.

[0007] In the first aspect, the present application provides a communication method, which includes: a terminal initiates a first registration application to a first cell in a searched first tracking area code; wherein, the first cell is one of the cells corresponding to the first tracking area code, and the communication standard corresponding to the first tracking area code is the first communication standard; when the first registration application is rejected and the reason value for rejection is a preset value, searching for cells in a second tracking area code according to historical resident records, the communication standard corresponding to the second tracking area code is the first communication standard, and the second tracking area code is different from the first tracking area code.

[0008] In this embodiment, when a registration application is rejected and the rejection reason value is a preset value, a search is performed for cells in the second tracking area code based on historical residency records. Compared to the prior art, which performs a fullband search when a registration application is rejected with a rejection reason value of #15, this improves network search efficiency, facilitates faster search for connectable cells in the TAC, and improves network residency capabilities.

[0009] In some possible implementations, the method further includes: when a second cell in the second tracking area code is searched according to the historical residence record, initiating a second registration application to the second cell; the second cell is the cell where the terminal has resided recorded in the historical residence record.

[0010] In some possible implementations, the method further includes: after successfully registering according to the second registration application, camping on the first communication standard through the second cell.

[0011] In some possible implementations, the method further includes: when no record in the historical resident records can be found through searching the historical resident records, searching in a full frequency band corresponding to other standards supported by the terminal.

[0012] In some possible implementations, the search in the full frequency band corresponding to other standards includes: first searching for connectable cells in the full frequency band corresponding to the second communication standard supported by the terminal; when no connectable cells are found in the full frequency band corresponding to the second communication standard, searching for connectable cells in the full frequency band corresponding to the third communication standard supported by the terminal; the first communication standard, the second communication standard and the third communication standard are different communication standards supported by the terminal; the second communication standard has a higher transmission rate than the third communication standard.

[0013] In some possible implementations, the preset value includes #15.

[0014] In some possible implementations, the first communication standard includes any one of the following communication standards: 2G, 3G, 4G, 5G, and 6G.

[0015] In the second aspect, the present application provides a communication device, including: a registration unit and a search unit, wherein the registration unit is used to initiate a first registration application to a first cell in a searched first tracking area code; wherein the first cell is one of the cells corresponding to the first tracking area code, and the communication standard corresponding to the first tracking area code is a first communication standard; the search unit is used to search for cells in a second tracking area code according to historical resident records when the first registration application is rejected and the reason value for rejection is a preset value, the communication standard corresponding to the second tracking area code is the first communication standard, and the second tracking area code is different from the first tracking area code.

[0016] In some possible implementations, the registration unit is further used to initiate a second registration application to a second cell in the second tracking area code when a second cell in the second tracking area code is searched according to the historical residence record; the second cell is the cell where the terminal has resided as recorded in the historical residence record.

[0017] In a third aspect, the present application provides a terminal comprising: a processor, a memory and an interface; the processor, the memory and the interface cooperate with each other so that the terminal executes any one of the methods in the technical solution described in the first aspect.

[0018] In a fourth aspect, the present application provides a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, the processor executes any one of the methods in the technical solution described in the first aspect.

[0019] It should be understood that the technical solutions provided in the second to fourth aspects above all have technical features that correspond to the communication methods provided in the first aspect and its possible implementation methods, and therefore the beneficial effects that can be achieved are similar and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1A is a schematic diagram of an application scenario applicable to a communication method provided in an embodiment of the present application;

[0021] FIG1B is a schematic diagram of an interaction flow of a communication method in the related art;

[0022] FIG1C is a schematic diagram of an interaction flow of another communication method in the related art;

[0023] FIG1D is a schematic diagram of an interaction flow of another communication method in the related art;

[0024] FIG2A is a flow chart of a communication method according to an embodiment of the present application;

[0025] FIG2B is a flow chart of a communication method according to an embodiment of the present application;

[0026] FIG2C is a flow chart of a communication method according to an embodiment of the present application;

[0027] FIG2D is a flow chart of a communication method according to an embodiment of the present application;

[0028] FIG3 is a schematic diagram of an interaction flow of a communication method provided in an embodiment of the present application;

[0029] FIG4 is a schematic diagram of an interaction flow of a communication method provided in an embodiment of the present application;

[0030] FIG5A is a schematic diagram of an application scenario in which a communication method provided in an embodiment of the present application is applicable;

[0031] FIG5B is a schematic diagram of an interaction flow of a communication method in the related art;

[0032] FIG6 is a schematic structural diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings in the embodiments of the present application. In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships can exist, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0034] In the following, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features indicated. Therefore, a feature specified as "first," "second," or "third" may explicitly or implicitly include one or more of the features.

[0035] Figure 1A is a schematic diagram of an application scenario to which the communication method provided in an embodiment of the present application is applicable. As shown in Figure 1A, the environment in which the terminal is located has a tracking area code TAC-A corresponding to the 4G standard, and N1 cells corresponding to TAC-A: A-1, A-2, A-3, ..., A-N1. The environment in which the terminal is located also has a tracking area code TAC-1 corresponding to the 5G standard, and N2 cells corresponding to TAC-1: 1-1, 1-2, ..., 1-N2. The terminal can be an electronic device such as a mobile phone or a wearable device. The embodiment of the present application does not impose any restrictions on the specific type of electronic device.

[0036] FIG1B is a schematic diagram of an interaction flow of a communication method in related art. The method includes the following steps:

[0037] 101. The terminal initiates a registration application to the 5G core network in cell 1-1 of TAC-1.

[0038] 102. If the registration application is rejected, the reason for rejection is a preset value, such as #15.

[0039] 103. The terminal disables TAC-1 of the current 5G cell according to 3GPP and other protocols and initiates a full-band search for 5G. This means searching for a communicable cell within the full frequency band corresponding to the 5G standard.

[0040] FIG1C is a schematic diagram of an interaction flow of another communication method in the related art. The method includes the following steps:

[0041] 101. The terminal initiates a registration application to the 5G core network in cell 1-1 of TAC-1.

[0042] 102. If the registration application is rejected, the reason for rejection is a preset value, such as #15.

[0043] 103. The terminal disables TAC-1 of the current 5G cell according to 3GPP and other protocols and initiates a full-band search for 5G. This means searching for a communicable cell within the full frequency band corresponding to the 5G standard.

[0044] 104. If a cell in 5G is found, a registration application is initiated. If the registration application is accepted, the cell stays in 5G.

[0045] FIG1D is a schematic diagram of an interaction flow of another communication method in the related art. The method includes the following steps:

[0046] 101. The terminal initiates a registration application to the 5G core network in cell 1-1 of TAC-1.

[0047] 102. If the registration application is rejected, the reason for rejection is a preset value, such as #15.

[0048] 103. The terminal disables TAC-1 of the current 5G cell according to 3GPP and other protocols and initiates a full-band search for 5G. This means searching for a communicable cell within the full frequency band corresponding to the 5G standard.

[0049] 104. If a cell in 5G is found, a registration application is initiated. If the registration application is accepted, the cell stays in 5G.

[0050] 105. If no 5G cell is found, and the terminal supports 4G, fullband searches for 4G.

[0051] After a registration application is rejected, the relevant communication method disables the TAC corresponding to the registration application according to the protocol, and then initiates a full-band search in the corresponding standard. Since the initiated search is a full-band search, this communication method has low communication efficiency.

[0052] Please refer to FIG2A for an embodiment of the present application. As shown in FIG2A , the communication method includes the following steps: 201 to 202 .

[0053] 201. The terminal initiates a first registration application to a first cell in a searched first tracking area code; wherein the first cell is a cell corresponding to the first tracking area code, and the communication standard corresponding to the first tracking area code is the first communication standard.

[0054] 202. When the first registration application is rejected and the reason for rejection is a preset value (for example, #15), the cell in the second tracking area code is searched according to the historical resident records. The communication standard corresponding to the second tracking area code is the first communication standard, and the second tracking area code is different from the first tracking area code.

[0055] Through testing, it was found that in actual communication, after the terminal initiates a registration application, the probability of the rejection reason value being a preset value (such as #15) is relatively high. In addition, when the rejection reason value is the preset value, the relevant technology performs a full-band search. Since the number of cells included in the full-band may be relatively large, the search of the relevant communication method is usually time-consuming and inefficient.

[0056] In this embodiment, when a registration application is rejected and the rejection reason value is a preset value, a search is performed for cells in the second tracking area code based on historical residency records. Compared to the prior art, which performs a fullband search when a registration application is rejected with a rejection reason value of #15, this improves network search efficiency, facilitates faster search for connectable cells in the TAC, and improves network residency capabilities.

[0057] As shown in FIG. 2B , in some possible implementations, the communication method includes steps 201 to 203 .

[0058] 201. The terminal initiates a first registration application to a first cell in a searched first tracking area code; wherein the first cell is a cell corresponding to the first tracking area code, and the communication standard corresponding to the first tracking area code is the first communication standard.

[0059] 202. When the first registration application is rejected and the reason for rejection is a preset value (for example, #15), the cell in the second tracking area code is searched according to the historical resident records. The communication standard corresponding to the second tracking area code is the first communication standard, and the second tracking area code is different from the first tracking area code.

[0060] 203. When a second cell in a second tracking area code is found according to the historical residence record, a second registration application is initiated to the second cell; the second cell is a cell where the terminal has resided as recorded in the historical residence record.

[0061] As shown in FIG. 2C , in some possible implementations, the communication method includes steps 201 to 204 .

[0062] 201. The terminal initiates a first registration application to a first cell in a searched first tracking area code; wherein the first cell is a cell corresponding to the first tracking area code, and the communication standard corresponding to the first tracking area code is the first communication standard.

[0063] 202. When the first registration application is rejected and the reason for rejection is a preset value (for example, #15), the cell in the second tracking area code is searched according to the historical resident records. The communication standard corresponding to the second tracking area code is the first communication standard, and the second tracking area code is different from the first tracking area code.

[0064] 203. When a second cell in a second tracking area code is found according to the historical residence record, a second registration application is initiated to the second cell; the second cell is a cell where the terminal has resided as recorded in the historical residence record.

[0065] 204. After successfully registering according to the second registration application, stay in the first communication standard through the second cell.

[0066] As shown in FIG. 2D , in some possible implementations, the communication method includes steps 201 to 205 .

[0067] 201. The terminal initiates a first registration application to a first cell in a searched first tracking area code; wherein the first cell is a cell corresponding to the first tracking area code, and the communication standard corresponding to the first tracking area code is the first communication standard.

[0068] 202. When the first registration application is rejected and the reason for rejection is a preset value (for example, #15), the cell in the second tracking area code is searched according to the historical resident records. The communication standard corresponding to the second tracking area code is the first communication standard, and the second tracking area code is different from the first tracking area code.

[0069] 203. When a second cell in a second tracking area code is found according to the historical residence record, a second registration application is initiated to the second cell; the second cell is a cell where the terminal has resided as recorded in the historical residence record.

[0070] 204. After successfully registering according to the second registration application, stay in the first communication standard through the second cell.

[0071] 205. When no record in the historical resident records can be found by searching the historical resident records, search in the full frequency band corresponding to other standards supported by the terminal.

[0072] In some possible implementations, searching in the full frequency band corresponding to other standards may include: first searching for connectable cells in the full frequency band corresponding to the second communication standard supported by the terminal; when no connectable cells are found in the full frequency band corresponding to the second communication standard, searching for connectable cells in the full frequency band corresponding to the third communication standard supported by the terminal; the first communication standard, the second communication standard, and the third communication standard are different communication standards supported by the terminal; and the second communication standard is a higher standard than the third communication standard. For example, if the terminal supports 3G, 4G, and 5G, the 5G communication standard is higher than the 3G and 4G communication standards, and the 4G communication standard is higher than the 3G communication standard.

[0073] In this embodiment, when a registration application is rejected and the rejection reason value is a preset value, a search is performed on cells in the second tracking area code based on historical resident records. Compared to the prior art, which performs a fullband search when a registration application is rejected with a rejection reason value of #15, this improves network search efficiency, facilitates faster search for connectable cells in the TAC, and improves network retention capabilities. If no cell is found based on historical resident records, a search is performed across the full frequency bands corresponding to other communication standards.

[0074] Please refer to Figure 3 which is an embodiment of the present application. In this embodiment, the terminal supports 4G and 5G communications, and the rejected preset value is #15. As shown in Figure 3, the communication method provided in this embodiment includes the following steps: 301 to 304.

[0075] 301. The terminal initiates a registration application to the 5G core network in cell 1-1 in TAC-1.

[0076] 302. If the registration application is rejected, the reason for rejection is #15.

[0077] 303. The terminal disables TAC-1 where the current 5G cell is located according to the protocol, and initiates a historical search for 5G, that is, searches for cells in other TACs except TAC-1 that correspond to the 5G standard in the historical resident records.

[0078] 304. If a cell in 5G is found, a registration application is initiated. If the registration application is accepted, the device stays on 5G. If no cell in 5G is found, the fullband search is performed on 4G.

[0079] In this embodiment, when a registration application is rejected and the rejection reason value is a preset value, a search is performed for cells in the second tracking area code based on historical residency records. Compared to the prior art, which performs a fullband search when a registration application is rejected with a rejection reason value of #15, this improves network search efficiency, facilitates faster search for connectable cells in the TAC, and improves network residency capabilities.

[0080] Please refer to Figure 4 for an embodiment of the present application. In this embodiment, the terminal supports both 4G and 5G communications, and the preset rejection value is #15. This embodiment differs from the embodiment shown in Figure 3 in that the terminal first initiates a registration request to the 4G core network. As shown in Figure 4, the communication method provided in this embodiment includes the following steps: 401 to 404.

[0081] 401. The terminal initiates a registration application to the 4G core network in cell A-1 of TAC-A.

[0082] 402. If the registration application is rejected, the reason for rejection is #15.

[0083] 403. The terminal disables TAC-A where the current 4G cell is located according to the protocol, and initiates a historical search for 4G, that is, searches for cells in other TACs except TAC-A that correspond to the 4G standard in the historical resident records.

[0084] 404. If a cell in 4G is found, a registration application is initiated. If the registration application is accepted, the phone stays on 4G. If no cell in 4G is found, the phone searches 5G in fullband.

[0085] Figure 5A is a schematic diagram of an application scenario to which the communication method provided in an embodiment of the present application is applicable. As shown in Figure 5A, the environment in which the terminal is located has a tracking area code TAC-A corresponding to the 4G standard, and N1 cells corresponding to TAC-A: A-1, A-2, A-3, ..., A-N1. The environment in which the terminal is located also has tracking area codes TAC-1 and TAC-2 corresponding to the 5G standard, and N2 cells corresponding to TAC-1: 1-1, 1-2, ..., 1-N2, and N3 cells corresponding to TAC-2: 1-1, 1-2, ..., 1-N3. The terminal can be an electronic device such as a mobile phone or a wearable device. The embodiment of the present application does not impose any restrictions on the specific type of electronic device.

[0086] As shown in FIG. 5B , in some possible implementations, the communication method includes steps 501 to 507 .

[0087] 501. The terminal initiates a registration application to the first cell 1-1 in the first tracking area code TAC-1 corresponding to the 5G core network that is searched.

[0088] Among them, cell 1-1 is one of the cells corresponding to the first tracking area code TAC-1, and the communication standard corresponding to the first tracking area code is the 5G communication standard.

[0089] 502. If the registration application is rejected and the rejection reason value is #15.

[0090] 503. The terminal disables TAC-1 where the current 5G cell is located according to the protocol and initiates a historical search for 5G. If the historical resident record includes cell 2-1 in TAC-2, step 504 is executed.

[0091] 504. Initiate a registration application in cell 2-1 of TAC-2.

[0092] 505. If the registration application is rejected, the rejection reason value is #15.

[0093] 506. The terminal disables TAC-2 where the current 5G cell is located according to the protocol and initiates a historical search.

[0094] 507. If a cell in 5G is found in the historical residency record, a registration application is initiated. If the registration application is accepted, the cell stays on 5G; if no cell is found, a fullband search is performed on 4G.

[0095] Some embodiments of the present application also provide a communication device, including: a registration unit and a search unit, wherein the registration unit is used to initiate a first registration application to a first cell in a searched first tracking area code; the first cell is one of the cells corresponding to the first tracking area code, and the communication standard corresponding to the first tracking area code is the first communication standard; the search unit is used to search for cells in a second tracking area code according to historical resident records when the first registration application is rejected and the reason value for rejection is a preset value, the communication standard corresponding to the second tracking area code is the first communication standard, and the second tracking area code is different from the first tracking area code.

[0096] In some possible implementations, the registration unit is further configured to initiate a second registration application to a second cell when a second cell in a second tracking area code is found according to the historical residence record; the second cell is a cell where the terminal has resided as recorded in the historical residence record.

[0097] It should be noted that the units in the communication device correspond to the steps in the previous method embodiment. The specific implementation of each unit during communication can refer to the description in the previous method embodiment, which will not be repeated here.

[0098] As an example, please refer to Figure 6, which is a schematic diagram of the structure of an electronic device 600 provided in an embodiment of the present application. As shown in Figure 6, the electronic device 600 may include a processor 601, a communication module 602, and a display screen 603.

[0099] The processor 601 may include one or more processing units. Different processing units may be independent devices or integrated into one or more processors 601. The controller may serve as the nerve center and command center of the electronic device 600. The controller may generate operation control signals based on instruction opcodes and timing signals to control instruction fetching and execution. The processor 601 may also include a memory for storing instructions and data.

[0100] In some embodiments, the processor 601 may include one or more interfaces. The interfaces may include an integrated circuit interface, an integrated circuit internal audio interface, a pulse code modulation interface, a universal asynchronous receiver and transmitter interface, a mobile industry processor interface, a general purpose input and output interface, a subscriber identity module interface, and / or a universal serial bus interface 611, etc.

[0101] Electronic device 600 implements display functionality through a GPU, display screen 603, and application processor 601. The GPU is a microprocessor for image processing and is connected to display screen 603 and application processor 601. The GPU is used to perform mathematical and geometric calculations for graphics rendering. Processor 601 may include one or more GPUs, which execute program instructions to generate or change display information. Display screen 603 is used to display images, video streams, etc. Communication module 602 may include antenna x, antenna y, mobile communication module 602A, and / or wireless communication module 602B.

[0102] The wireless communication function of the electronic device 600 can be implemented through antenna x, antenna y, mobile communication module 602A, wireless communication module 602B, a modem processor, and a baseband processor.

[0103] The mobile communication module 602A can provide solutions for wireless communications including 2G / 3G / 4G / 5G, etc., applied to the electronic device 600. The mobile communication module 602A may include at least one filter, a switch, a power amplifier, a low noise amplifier (LNA), etc. The mobile communication module 602A can receive electromagnetic waves from the antenna x, filter, amplify, and process the received electromagnetic waves, and transmit them to the modem processor for demodulation. The mobile communication module 602A can also amplify the signal modulated by the modem processor and convert it into electromagnetic waves for radiation through the antenna x. In some embodiments, at least some of the functional modules of the mobile communication module 602A can be set in the processor 601. In some embodiments, at least some of the functional modules of the mobile communication module 602A can be set in the same device as at least some of the modules of the processor 601.

[0104] The application processor outputs audio signals through an audio device (not limited to speaker 606A, receiver 606B, etc.) or displays images or video streams through display screen 603. In some embodiments, the modem processor can be a separate device. In other embodiments, the modem processor can be independent of processor 601 and be provided in the same device as mobile communication module 602A or other functional modules.

[0105] Wireless communication module 602B can provide a wireless communication solution for electronic device 600. Wireless communication module 602B can be one or more devices integrating at least one communication processing module. Wireless communication module 602B receives electromagnetic waves via antenna y, frequency-modulates and filters the electromagnetic wave signals, and transmits the processed signals to processor 601. Wireless communication module 602B can also receive signals to be transmitted from processor 601, frequency-modulate and amplify them, and then convert them into electromagnetic waves for radiation via antenna y.

[0106] The antenna x of the electronic device 600 is coupled to the mobile communication module 602A, and the antenna y is coupled to the wireless communication module 602B, so that the electronic device 600 can communicate with the network and other devices through wireless communication technology.

[0107] The electronic device 600 may also include an external memory interface 610, an internal memory 604, a universal serial bus (USB) interface 611, a charging management module 612, a power management module 613, a battery 614, an audio module 606, a speaker 606A, a receiver 606B, a microphone 606C, an earphone jack 606D, a sensor module 605, a button 609, a motor, an indicator 608, a camera 607, and a subscriber identification module (SIM) card interface. The electronic device 600 may implement audio functions such as music playback and recording through the audio module 606, the speaker 606A, the receiver 606B, the microphone 606C, the earphone jack 606D, and the application processor 601. The sensor module 605 in the electronic device 600 may implement sensing and / or acquisition functions for various signals.

[0108] The electronic device provided in the embodiments of the present application is described above. It should be understood that the structure illustrated in this embodiment does not constitute a specific limitation on the electronic device 600. In other embodiments, the electronic device 600 may include more or fewer components than shown, or may combine or separate certain components, or arrange the components differently. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0109] An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, the processor executes the communication method described in any of the above embodiments.

[0110] The embodiment of the present application also provides a computer program product. When the computer program product is run on a computer, it enables the computer to execute the above-mentioned related steps to implement the communication method in the above-mentioned embodiment.

[0111] Among them, the electronic device, computer-readable storage medium, computer program product or chip provided in this embodiment are all used to execute the corresponding methods provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding methods provided above, and will not be repeated here.

[0112] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, the replaced units may or may not be physically separated, and the components displayed as units may be one physical unit or multiple physical units, that is, they may be located in one place, or they may be distributed in multiple different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the scheme of this embodiment.

[0113] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0114] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a device (which can be a single-chip microcomputer, chip, etc.) or a processor (processor) to execute all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0115] The above content is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A communication method, characterized in that, The method includes: The terminal initiates a first registration application to a first cell in the first tracking area code searched; wherein, the first cell is one of the cells corresponding to the first tracking area code, and the communication system corresponding to the first tracking area code is a first communication system; When the first registration application is rejected and the reason value for rejection is a preset value, search for a cell in a second tracking area code according to the historical residence record, the communication system corresponding to the second tracking area code is the first communication system, and the second tracking area code is different from the first tracking area code.

2. The method according to claim 1, wherein The method further includes: When a second cell in the second tracking area code is searched according to the historical residence record, initiate a second registration application to the second cell; the second cell is a cell where the terminal has resided as recorded in the historical residence record.

3. The method according to claim 2, wherein The method further includes: After successful registration according to the second registration application, reside in the first communication system through the second cell.

4. The method according to claim 1, characterized in that The method further includes: When the record in the historical residence record cannot be searched according to the historical residence record, search in the full frequency band corresponding to other systems supported by the terminal.

5. The method according to claim 1, characterized in that The search in the full frequency band corresponding to other systems includes: First, search for connectable cells in the full frequency band corresponding to the second communication system supported by the terminal; When no connectable cell is searched in the full frequency band corresponding to the second communication system, search for connectable cells in the full frequency band corresponding to the third communication system supported by the terminal; the first communication system, the second communication system, and the third communication system are different communication systems supported by the terminal; the second communication system is higher in communication system than the third communication system.

6. The method according to claim 1, wherein The preset value includes #15.

7. The method according to any one of claims 1 to 6, wherein The first communication system includes any one of the following communication systems: 2G, 3G, 4G, 5G, and 6G.

8. A communication device, characterized in that, It includes: A registration unit and a search unit, wherein The registration unit is used to initiate a first registration application to a first cell in the first tracking area code searched; wherein, the first cell is one of the cells corresponding to the first tracking area code, and the communication system corresponding to the first tracking area code is a first communication system; The search unit is used to search for a cell in a second tracking area code according to the historical residence record when the first registration application is rejected and the reason value for rejection is a preset value, the communication system corresponding to the second tracking area code is the first communication system, and the second tracking area code is different from the first tracking area code.

9. A terminal, characterized in that, It includes: A processor, a memory, and an interface; The processor, the memory, and the interface cooperate with each other to enable the terminal to execute the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, A computer program is stored in the computer-readable storage medium, and when the computer program is executed by the processor, the processor executes the method according to any one of claims 1 to 7.

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