A cell search method, apparatus, electronic device, medium, chip and product

Abstract

The present disclosure relates to a cell search method, device, electronic equipment, medium, chip and product. The cell search method comprises determining at least one frequency band from a plurality of frequency bands according to first information, the first information comprising search priorities of the plurality of frequency bands, each search priority of a frequency band representing an anti-interference degree between a first radio frequency resource and a second radio frequency resource, the first radio frequency resource being a radio frequency resource used by a cell in which a first SIM resides for searching, and the second radio frequency resource being a radio frequency resource used by a cell in which a second SIM resides for searching or a radio frequency resource used by a cell in which the second SIM resides; and searching for the cell in which the first SIM resides on the at least one frequency band. By actively selecting a frequency band for searching for the cell in which the first SIM resides, the radio frequency resource of the first SIM can be dynamically adjusted, the probability of conflict with the radio frequency resource of the other SIM is reduced, the communication performance of the multi-card service is improved, and the user experience is also improved.

Description

Technical Field

[0001] This disclosure relates to the field of mobile communication technology, and in particular to a cell search method, apparatus, electronic device, medium, chip, and product. Background Technology

[0002] With the development of mobile communication technology, terminal devices supporting two subscriber identity modules (SIMs) are becoming increasingly common. Different SIMs within a terminal device can reuse the same strategy for cell search and management, and through the respective radio frequency channels of each card, dual-SIM dual-standby dual-active functionality can be achieved. How to continuously optimize the allocation of radio frequency resources remains a long-term challenge. Summary of the Invention

[0003] To overcome the problems existing in related technologies, this disclosure provides a cell search method, apparatus, electronic device, medium, chip, and product.

[0004] According to a first aspect of the present disclosure, a cell search method is provided, the method comprising:

[0005] At least one frequency band is determined from multiple frequency bands based on first information, the first information including the search priority of the multiple frequency bands, the search priority of each frequency band representing the anti-interference degree between the first radio frequency resource and the second radio frequency resource, the first radio frequency resource refers to the radio frequency resource used to search for the camping cell of the first user identification module SIM in the frequency band, the second radio frequency resource refers to the radio frequency resource used to search for the camping cell of the second SIM, or the radio frequency resource used by the second SIM in the camping cell;

[0006] Search for the cell where the first SIM is stationed on at least one frequency band.

[0007] In this embodiment, by setting the search priority for the search frequency band in the first information to actively select the search frequency band to search for the cell where the first SIM is camped, the radio frequency resources of the first SIM can be dynamically adjusted, reducing the probability of conflict with the radio frequency resources of other SIMs. This allows multiple SIMs to make full use of radio frequency resources, improving the communication performance of multi-SIM services and also enhancing the user experience.

[0008] In some exemplary embodiments of this disclosure, determining at least one frequency band from multiple frequency bands based on first information includes:

[0009] Determine at least one frequency band with the highest search priority from multiple frequency bands.

[0010] In this embodiment, by actively selecting at least one frequency band with the highest search priority to search for the cell where the first SIM is camped, the radio frequency resources of the first SIM can be dynamically adjusted during the process of setting the search priority of the search frequency band in the first information, thereby reducing the probability of conflict with the radio frequency resources of other SIMs.

[0011] In some exemplary embodiments of this disclosure, the method further includes:

[0012] In response to searching for the camping cell of the second SIM within a frequency band, the search priority of the frequency band in the first information is set to the lowest search priority, or the search priority of the frequency band in the first information and the search priority of at least one frequency band closest to the frequency band are set to the lowest search priority.

[0013] In this embodiment, the frequency band is used as the second radio frequency resource. By lowering the search priority of the frequency band in the first information that has a low degree of anti-interference with the second radio frequency resource, the anti-interference level between the first radio frequency resource and the second radio frequency resource is actively changed, thereby reducing the probability of radio frequency channel resource conflict between the first SIM and the second SIM.

[0014] In some exemplary embodiments of this disclosure, the method further includes:

[0015] In response to searching for the camping cell of the second SIM within a frequency band, the search priority of other frequency bands in the first information other than the frequency band and the frequency bands that have already been searched is determined based on the frequency band.

[0016] In this embodiment, the frequency band is used as the second radio frequency resource. By increasing the search priority of the frequency band with a high degree of anti-interference with the second radio frequency resource in the first information, the anti-interference degree between the first radio frequency resource and the second radio frequency resource is actively changed, thereby reducing the probability of radio frequency channel resource conflict between the first SIM and the second SIM.

[0017] In some exemplary embodiments of this disclosure, the method further includes:

[0018] In response to searching for the camping cell of the second SIM in a frequency band, searching for the camping cell of the first SIM in the frequency band is prohibited for a first duration, or searching for the camping cell of the first SIM in the frequency band and at least one frequency band closest to the frequency band is prohibited for a first duration.

[0019] In this embodiment, the frequency band is used as the second radio frequency resource. By blocking the frequency band in the first information that has a low degree of anti-interference with the second radio frequency resource within the first time period, the anti-interference level between the first radio frequency resource and the second radio frequency resource is actively changed, thereby reducing the probability of radio frequency channel resource conflict between the first SIM and the second SIM.

[0020] In some exemplary embodiments of this disclosure, the method further includes:

[0021] In response to the second SIM completing cell camping in a frequency band, the search priority of the frequency band in the first information is set to the lowest search priority, or the search priority of the frequency band in the first information and at least one frequency band closest to the frequency band are set to the lowest search priority.

[0022] In this embodiment, the frequency band is used as the second radio frequency resource. By lowering the search priority of the frequency band in the first information that has a low degree of anti-interference with the second radio frequency resource, the anti-interference level between the first radio frequency resource and the second radio frequency resource is actively changed, thereby reducing the probability of radio frequency channel resource conflict between the first SIM and the second SIM.

[0023] In some exemplary embodiments of this disclosure, the method further includes:

[0024] In response to the second SIM completing cell camping in a frequency band, searching for the first SIM's camping cell in the first frequency band is prohibited for a second duration, or searching for the first SIM's camping cell in the first frequency band and at least one frequency band closest to the first frequency band is prohibited for a second duration.

[0025] In this embodiment, the frequency band is used as the second radio frequency resource. By blocking the frequency band in the first information that has a low anti-interference level with the second radio frequency resource during the second time period, the anti-interference level between the first radio frequency resource and the second radio frequency resource is actively changed, thereby reducing the probability of radio frequency channel resource conflict between the first SIM and the second SIM.

[0026] In some exemplary embodiments of this disclosure, the frequency band in the first information and the at least one frequency band closest to the first frequency band are both frequency bands that have not been searched in the first information.

[0027] In this embodiment, by setting one frequency band in the first information and at least one frequency band closest to that frequency band to be frequency bands that have not been searched in the first information, repeated searches can be avoided and search efficiency can be improved.

[0028] In some exemplary embodiments of this disclosure, the method further includes:

[0029] In response to the terminal device powering on, the first information is established, wherein the multiple frequency bands are the frequency bands corresponding to the initial cell search as agreed in the protocol, or the multiple frequency bands are multiple frequency bands that were saved when the device was powered off last time.

[0030] In this embodiment, by setting multiple frequency bands in the first information when the terminal device is powered on to be the frequency bands used during the initial cell search as agreed in the protocol, or multiple frequency bands that were saved before the terminal device was powered off or disconnected from the network, the cell search speed can be accelerated, the search blind zone can be reduced, and the terminal device can acquire the synchronization channel faster.

[0031] In some exemplary embodiments of this disclosure, establishing the first information includes:

[0032] Set the search priority of each frequency band in the first information to the highest search priority.

[0033] In this embodiment, by setting the search priority of each frequency band in the initial first information to the highest search priority, it is convenient to subsequently reduce the search priority of frequency bands that conflict with the radio frequency resources of other SIMs, thereby adjusting the radio frequency resources of the first SIM.

[0034] In some exemplary embodiments of this disclosure, the method further includes:

[0035] At least one frequency band is determined from the plurality of frequency bands based on the second information, the second information including the search priority of the plurality of frequency bands, the search priority of each frequency band representing the anti-interference degree between the third radio frequency resource and the first radio frequency resource, the third radio frequency resource being the radio frequency resource used to search for the camping cell of the second SIM within the frequency band, and the first radio frequency resource being the radio frequency resource used to search for the camping cell of the first SIM.

[0036] Search for the second SIM's camping cell on at least one frequency band.

[0037] In this embodiment, by setting the search priority for the search frequency band in the second information to actively select the search frequency band to search for the second SIM's camp cell, the radio frequency resources of the second SIM can be dynamically adjusted, reducing the probability of conflict with the radio frequency resources of other SIMs. This allows multiple SIMs to make full use of radio frequency resources, improving the communication performance of multi-SIM services and enhancing the user experience.

[0038] According to a second aspect of the present disclosure, a cell search apparatus is provided, the apparatus comprising:

[0039] A first determining module is configured to determine at least one frequency band from multiple frequency bands based on first information, the first information including the search priority of the multiple frequency bands, the search priority of each frequency band representing the anti-interference degree between a first radio frequency resource and a second radio frequency resource, the first radio frequency resource being the radio frequency resource used to search for the camping cell of a first user identification module (SIM) within the frequency band, and the second radio frequency resource being the radio frequency resource used to search for the camping cell of a second SIM, or the radio frequency resource used by the second SIM in the camping cell;

[0040] The first search module is configured to search for the camping cells of the first SIM on the at least one frequency band.

[0041] In this embodiment, by setting the search priority for the search frequency band in the first information to actively select the search frequency band to search for the cell where the first SIM is camped, the radio frequency resources of the first SIM can be dynamically adjusted, reducing the probability of conflict with the radio frequency resources of other SIMs. This allows multiple SIMs to make full use of radio frequency resources, improving the communication performance of multi-SIM services and also enhancing the user experience.

[0042] According to a third aspect of the present disclosure, an electronic device is provided, comprising:

[0043] processor;

[0044] Memory used to store processor-executable instructions;

[0045] The processor is configured to perform the cell search method as described in the first aspect of this disclosure.

[0046] According to a fourth aspect of the present disclosure, a non-transitory computer-readable storage medium is provided, wherein instructions in the storage medium, when executed by a processor of an electronic device, enable the electronic device to perform the cell search method as described in the first aspect of the present disclosure.

[0047] According to a fifth aspect of the present disclosure, another aspect of the present disclosure provides a chip including a processor and an input / output interface, the input / output interface being configured to receive signals from other devices outside the chip and transmit them to the processor or to send signals from the processor to other devices outside the chip, the processor being configured to implement the method as described in the first aspect via logic circuits or executing code instructions.

[0048] In this embodiment, the chip includes a baseband chip. By setting the search priority for the search frequency band in the first information to actively select the search frequency band to search for the first SIM's camp cell, the radio frequency resources of the first SIM can be dynamically adjusted, reducing the probability of conflict with the radio frequency resources of other SIMs. This allows multiple SIMs to fully utilize radio frequency resources, improving the communication performance of multi-SIM services and also improving the chip's execution efficiency.

[0049] According to a sixth aspect of the present disclosure, a computer program product is provided, the computer program product including computer instructions stored in a computer-readable storage medium; a processor of an electronic device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, causing the electronic device to perform the cell search method described in the first aspect of the present disclosure.

[0050] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0051] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0052] Figure 1 This is a flowchart illustrating a cell search method according to an exemplary embodiment.

[0053] Figure 2 This is a flowchart illustrating a cell search method according to an exemplary embodiment.

[0054] Figure 3 This is a flowchart illustrating a cell search method according to an exemplary embodiment.

[0055] Figure 4 This is a block diagram illustrating a cell search device according to an exemplary embodiment.

[0056] Figure 5 This is a block diagram of an electronic device according to an exemplary embodiment. Detailed Implementation

[0057] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0058] In some embodiments, when a terminal device has two SIM cards, the two SIM cards share a set of terminal hardware resources (e.g., multiplexing the maximum capacity of a single SIM card). The terminal device has two or more radio frequency paths that can communicate with two networks simultaneously. Due to the limitation on the maximum number of radio frequency channels in the same or similar frequency bands, it is necessary to coordinate radio frequency resources between different SIM cards. When the radio frequency resources used by the two SIM cards for searching or camping on a cell conflict, time-division multiplexing of resources between the cards is required.

[0059] The terminal involves many random frequency bands when searching for the cells where the two SIM cards are camped. The two SIM cards may camp on the same or similar frequency bands, which can easily lead to resource conflicts, thereby affecting the performance of the terminal device and the user experience.

[0060] This disclosure provides an exemplary embodiment of a cell search method applicable to terminal devices, specifically smart devices such as mobile phones, tablets, laptops, and smartwatches. The terminal device can have multiple SIM cards, with the number of SIM cards being two, three, or even more. The cell search method provided in this disclosure is suitable for multi-radio channel, multi-SIM scenarios; the following description uses a multi-radio channel, dual-SIM scenario as an example. Under the premise of ensuring that the radio frequency channels used by the dual SIM cards do not exceed the maximum number of radio frequency channels, this disclosure specifically describes a cell search method provided in this disclosure, taking a terminal device including a first SIM and a second SIM as an example. In this disclosure, the first SIM is the primary SIM and the second SIM is the secondary SIM, or the second SIM is the primary SIM and the first SIM is the secondary SIM; this disclosure does not specifically limit this.

[0061] like Figure 1 As shown in this embodiment, the cell search method includes:

[0062] Step S101: Determine at least one frequency band from multiple frequency bands based on the first information.

[0063] In some embodiments, the first information corresponds to the first SIM.

[0064] In some embodiments, the timing of establishing the first information is when the terminal is powered on, or when the terminal reconnects to the network (e.g., when switching from airplane mode to normal communication mode).

[0065] In some embodiments, the first information includes search priorities for multiple frequency bands, where the search priority of each frequency band represents the degree of interference immunity between the first radio frequency resource and the second radio frequency resource. Wherein:

[0066] The first radio frequency resource refers to the radio frequency resources used to search for the first SIM's camp cell within the frequency band;

[0067] The second radio frequency resource refers to the radio frequency resource used to search for the cell where the second SIM is camped, or the radio frequency resource used by the second SIM in the camping cell.

[0068] In some embodiments, the degree of interference immunity refers to the extent to which interference does not occur when using two radio frequency resources. In one example, this degree of interference immunity is positively correlated with the spacing between the two radio frequency resources; specifically, the larger the frequency range of the spacing between the two radio frequency resources, the better the interference immunity, and vice versa. The interference immunity is poor when the frequency ranges of the two radio frequency resources overlap, and the interference immunity is worst when the frequency ranges of the two radio frequency resources completely overlap. Therefore, the interference immunity between the first radio frequency resource and the second radio frequency resource can be adjusted by adjusting the search priority of the frequency bands in the first information.

[0069] In some embodiments, establishing the first information includes setting the search priority of each frequency band in the first information to the highest search priority, so as to facilitate the adjustment of the search priority of the searched frequency band during the search process. Of course, it can also be set to other search priorities besides the highest and lowest search priorities.

[0070] In this embodiment, by setting the search priority of each frequency band in the initial first information to the highest search priority, it is convenient to subsequently reduce the search priority of frequency bands that conflict with the radio frequency resources of other SIMs, thereby adjusting the radio frequency resources of the first SIM.

[0071] In some embodiments, multiple frequency bands refer to the operating frequency bands defined in the communication standard protocol, such as Band 39, Band 40, and Band 41 in the Long Term Evolution (LTE) system, and n41 and n79 in the New Radio (NR) system. Since the SIM card in the terminal device may be a SIM card that supports 4G or a SIM card that supports 5G, multiple frequency bands may simultaneously include operating frequency bands in 4G and operating frequency bands in 5G.

[0072] In some embodiments, in response to the terminal device powering on, first information is established, wherein the multiple frequency bands are frequency bands used during the initial cell search as agreed in the protocol, or the multiple frequency bands are multiple frequency bands that were saved on the terminal device before it was powered off or disconnected from the network last time.

[0073] In this embodiment, by setting multiple frequency bands in the first information when the terminal device is powered on to be the frequency bands used during the initial cell search as agreed in the protocol, or multiple frequency bands that were saved before the terminal device was powered off or disconnected from the network, the cell search speed can be accelerated, the search blind zone can be reduced, and the terminal can acquire the synchronization channel faster.

[0074] In some embodiments, step S100, determining at least one frequency band from multiple frequency bands based on first information, includes: determining at least one frequency band with the highest search priority from multiple frequency bands.

[0075] In this embodiment, by actively selecting at least one frequency band with the highest search priority to search for the cell where the first SIM is camped, the radio frequency resources of the first SIM can be dynamically adjusted during the process of setting the search priority of the search frequency band in the first information, thereby reducing the probability of conflict with the radio frequency resources of other SIMs.

[0076] In one example, when there are N frequency bands with the same search priority and all of them are the highest priority, determining at least one frequency band with the highest search priority from multiple frequency bands means: determining the N frequency bands from multiple frequency bands, where N is an integer greater than 1.

[0077] In another example, there are M frequency bands with different search priorities, and their search priorities decrease sequentially from the highest priority. Determining at least one frequency band with the highest search priority from multiple frequency bands means: identifying the M frequency bands from multiple frequency bands, where M is an integer greater than 1.

[0078] In this embodiment, when the terminal device searches for the cell where the first SIM is registered, it prioritizes selecting from the frequency band with the highest search priority. By determining at least one frequency band with the highest search priority from multiple frequency bands, this at least one frequency band is used as the first radio frequency resource, so that its anti-interference ability with the second radio frequency resource is better.

[0079] In some embodiments, the first information includes multiple frequency band identifiers. When these multiple frequency band identifiers are sorted from high to low search priority, determining at least one frequency band with the highest search priority from the multiple frequency bands includes: selecting at least one frequency band that appears first in the first information. Similarly, it can be understood that the multiple frequency band identifiers included in the first information can be sorted from high to low search priority or from low to high search priority. This disclosure describes the process by taking the sorting of multiple frequency band identifiers in the first information from high to low search priority as an example, that is, in the first information, frequency band identifiers with higher search priority are sorted first, and frequency band identifiers with lower search priority are sorted last.

[0080] Step S102: Search for the camping cell of the first SIM in at least one frequency band.

[0081] In some embodiments, during the execution of step S101 or S102, the first information may also be maintained, or the first information may be modified. That is, step S101 and maintaining the first information are performed in parallel, or step S102 and maintaining the first information are performed in parallel.

[0082] In some embodiments, maintaining the first information includes at least one of the following five methods:

[0083] Method 1:

[0084] In response to searching for a second SIM's camp cell within a frequency band (e.g., frequency band A), the search priority of that frequency band (e.g., frequency band A) in the first information is set to the lowest search priority; or, the search priority of that frequency band (e.g., frequency band A) in the first information and the search priority of at least one frequency band closest to that frequency band (e.g., frequency band A) are both set to the lowest search priority.

[0085] In one example, when multiple frequency band identifiers in the first information are arranged in descending order of search priority, setting the search priority of a frequency band (e.g., frequency band A) in the first information to the lowest search priority means adjusting the frequency band identifier of that frequency band (e.g., frequency band A) in the first information to the last position of the frequency band identifiers included in the first information. Thus, the terminal device selects at least one of the first frequency bands in the first information for searching, so that while searching for the second SIM's registered cell in one frequency band (e.g., frequency band A), the terminal device will not search for the first SIM's registered cell in that same frequency band (e.g., frequency band A).

[0086] A variation of this method 1 is as follows: in response to searching for the camping cell of the second SIM in a frequency band (e.g., frequency band A), and when the frequency band (e.g., frequency band A) is a frequency band not searched in the first information, the search priority of the frequency band (e.g., frequency band A) in the first information is set to the lowest search priority.

[0087] Understandably, a frequency band (e.g., frequency band A) is a frequency band that has not been searched in the first information. If a frequency band (e.g., frequency band A) in the first information has been searched by the terminal device, its search priority will not be adjusted.

[0088] In another example, when multiple frequency band identifiers in the first information are arranged in descending order of search priority, setting the search priority of a frequency band (e.g., frequency band A) in the first information and the search priority of at least one frequency band closest to that frequency band (e.g., frequency band A) to the lowest search priority means: adjusting the frequency band identifier of that frequency band (e.g., frequency band A) and the frequency band identifier of at least one frequency band closest to that frequency band (e.g., frequency band A) in the first information to the last position of the frequency band identifiers included in the first information. Here, at least one frequency band closest to that frequency band (e.g., frequency band A) means: at least one frequency band closest to the frequency of that frequency band (e.g., frequency band A).

[0089] Another variation of this method 1 is: in response to searching for the camping cell of the second SIM in a frequency band (e.g., frequency band A), and when the frequency band (e.g., frequency band A) and at least one frequency band closest to the frequency band (e.g., frequency band A) are frequency bands not searched in the first information, the search priority of the frequency band (e.g., frequency band A) and the search priority of at least one frequency band closest to the frequency band (e.g., frequency band A) in the first information are set to the lowest search priority.

[0090] Understandably, a frequency band (e.g., frequency band A) in the first information and at least one frequency band closest to it are both frequency bands that have not been searched in the first information. If the frequency band (e.g., frequency band A) in the first information and at least one frequency band closest to it have already been searched by the terminal device, their search priority will not be adjusted. If only some frequency bands in the frequency band (e.g., frequency band A) in the first information and at least one frequency band closest to it have not been searched, only the search priority of the unsearched frequency bands will be adjusted. By setting a frequency band in the first information and at least one frequency band closest to it to be frequency bands that have not been searched in the first information, duplicate searches can be avoided and search efficiency can be improved.

[0091] When adjusting the frequency band identifier of a frequency band (e.g., frequency band A) in the first information and the frequency band identifier of the at least one frequency band closest to that frequency band (e.g., frequency band A) to the last position of the frequency band identifiers included in the first information, the process includes: calculating the frequency band distance between a frequency band (e.g., frequency band A) and both the frequency band (e.g., frequency band A) in the first information and the at least one frequency band closest to that frequency band (e.g., frequency band A), and setting the order between the frequency band (e.g., frequency band A) and the at least one frequency band closest to that frequency band (e.g., frequency band A) according to the frequency band distance. A frequency band with a larger frequency band distance from a frequency band (e.g., frequency band A) has a greater degree of anti-interference with the second radio frequency resource and is set earlier in the order; a frequency band with a smaller frequency band distance from a frequency band (e.g., frequency band A) has a smaller degree of anti-interference with the second radio frequency resource and is set later in the order. For example, a frequency band is represented as frequency band A, and the at least one frequency band closest to frequency band A is represented as frequency band B and frequency band C. If the relationship between frequency bands is (CA)>(BA), then when the frequency band identifiers of frequency band A, frequency band B and frequency band C are moved to the last position of the frequency band identifiers included in the first information, the order between frequency band A, frequency band B and frequency band C is: frequency band C, frequency band B, frequency band A.

[0092] In this embodiment, when the second SIM of the terminal device is also in the cell search process, in response to the terminal device searching for the second SIM's camping cell within a frequency band (e.g., frequency band A), the frequency band (e.g., frequency band A) and adjacent frequency bands in the first information can be actively adjusted. The adjustment method includes moving the position of the frequency band identifiers of frequency bands that are the same as or adjacent to the frequency band (e.g., frequency band A) in the first information to the end of the frequency band identifiers included in the first information. In this embodiment, the frequency band (e.g., frequency band A) serves as the second radio frequency resource. By lowering the search priority of frequency bands in the first information that have low anti-interference levels with the second radio frequency resource, the anti-interference level between the first and second radio frequency resources is actively changed, reducing the probability of radio frequency channel resource conflicts between the first and second SIMs.

[0093] Method 2:

[0094] In response to searching for the camping cell of the second SIM within a frequency band (e.g., frequency band A), the search priority of other frequency bands in the first information other than the frequency band (e.g., frequency band A) and the frequency bands that have already been searched is determined based on the frequency band (e.g., frequency band A).

[0095] In one example, determining the search priority of other frequency bands in the first information besides the first frequency band (e.g., frequency band A) and the already searched frequency bands based on a frequency band (e.g., frequency band A) means: calculating the frequency band distance between each of the other frequency bands in the first information and the first frequency band (e.g., frequency band A), and setting the search priority of each frequency band according to the frequency band distance. A frequency band with a larger frequency band distance from the first frequency band (e.g., frequency band A) has a higher search priority, and a frequency band with a smaller frequency band distance from the first frequency band (e.g., frequency band A) has a lower search priority. Thus, the terminal device selects at least one frequency band with the highest priority in the first information for searching, so that while searching for the second SIM's registered cell in one frequency band (e.g., frequency band A), the terminal device does not search for the first SIM's registered cell in the same frequency band (e.g., frequency band A).

[0096] In this embodiment, when the second SIM of the terminal device is also in the cell search process, in response to the terminal device searching for the second SIM's camping cell within a frequency band (e.g., frequency band A), the frequency bands in the first information can be actively adjusted. The adjustment method includes calculating the band distance between each unsearched frequency band in the first information and the first frequency band (e.g., frequency band A), and setting the search priority of each frequency band based on this band distance. In this embodiment, the first frequency band (e.g., frequency band A) serves as the second radio frequency resource. By increasing the search priority of the frequency bands in the first information that have a high degree of anti-interference with the second radio frequency resource, the anti-interference level between the first and second radio frequency resources is actively changed, reducing the probability of radio frequency channel resource conflicts between the first and second SIMs.

[0097] Method 3:

[0098] In response to searching for a second SIM's camping cell in a frequency band (e.g., frequency band A), searching for a first SIM's camping cell in that frequency band (e.g., frequency band A) is prohibited for a first duration; or, searching for a first SIM's camping cell in that frequency band (e.g., frequency band A) and at least one frequency band closest to that frequency band (e.g., frequency band A) is prohibited for a first duration.

[0099] In this embodiment, the first duration can be determined based on empirical or experimental values, and this disclosure does not impose specific limitations. Within the first duration, the terminal device selects at least one frequency band that is not prohibited in the first information for searching, so that while searching for the second SIM's camping cell in a frequency band (e.g., frequency band A), the terminal device will not search for the first SIM's camping cell in the same frequency band (e.g., frequency band A).

[0100] A variation of this method 3 is as follows: in response to searching for the camping cell of the second SIM in a frequency band (e.g., frequency band A), and when the frequency band (e.g., frequency band A) and at least one frequency band closest to the frequency band (e.g., frequency band A) are frequency bands not searched in the first information, searching for the camping cell of the first SIM in the frequency band (e.g., frequency band A) is prohibited for a first duration; or, searching for the camping cell of the first SIM in the frequency band (e.g., frequency band A) and at least one frequency band closest to the frequency band (e.g., frequency band A) is prohibited for a first duration.

[0101] Understandably, a frequency band (e.g., frequency band A) in the first information and at least one frequency band closest to it are both frequency bands that have not been searched in the first information. If the frequency band (e.g., frequency band A) in the first information and at least one frequency band closest to it have already been searched by the terminal, then they will not be blocked for the first time period. If only some frequency bands in the frequency band (e.g., frequency band A) in the first information and at least one frequency band closest to it have not been searched, then only the unsearched frequency bands will be blocked for the first time period. By setting a frequency band in the first information and at least one frequency band closest to it to be frequency bands that have not been searched in the first information, duplicate searches can be avoided and search efficiency can be improved.

[0102] In this embodiment, when the second SIM of the terminal device is also in the cell search process, in response to the terminal device searching for the second SIM's camp cell in a frequency band (e.g., frequency band A), the frequency band (e.g., frequency band A) and adjacent frequency bands in the first information can be actively adjusted. The adjustment method includes prohibiting the search for the frequency band (e.g., frequency band A) and adjacent frequency bands in the first information for a first duration. In this embodiment, the frequency band (e.g., frequency band A) serves as the second radio frequency resource. By prohibiting frequency bands in the first information with low anti-interference levels with the second radio frequency resource for a first duration, the anti-interference level between the first and second radio frequency resources is actively changed, reducing the probability of radio frequency channel resource conflicts between the first and second SIMs.

[0103] Method 4:

[0104] In response to the second SIM completing cell camping in a frequency band (e.g., frequency band A), the search priority of that frequency band (e.g., frequency band A) in the first information is set to the lowest search priority, or the search priority of that frequency band (e.g., frequency band A) in the first information and at least one frequency band closest to that frequency band (e.g., frequency band A) are set to the lowest search priority.

[0105] The understanding of setting the search priority of a frequency band (e.g., frequency band A) in the first information to the lowest search priority, or setting the search priority of a frequency band (e.g., frequency band A) in the first information and at least one frequency band closest to the frequency band (e.g., frequency band A) to the lowest search priority, is consistent with that in the above embodiments and will not be repeated here.

[0106] The terminal device selects at least one frequency band with the highest search priority from the first information for searching, so that when searching for the cell where the first SIM is camped, the terminal device will finally search for a frequency band with low anti-interference level with the frequency band where the cell where the second SIM is camped is located.

[0107] A variation of this method 4 is as follows: In response to the second SIM completing cell camping in a frequency band (e.g., frequency band A), and when the frequency band (e.g., frequency band A) and at least one frequency band closest to the frequency band (e.g., frequency band A) are frequency bands not searched in the first information, the search priority of the frequency band (e.g., frequency band A) in the first information is set to the lowest search priority, or the search priority of the frequency band (e.g., frequency band A) in the first information and the search priority of at least one frequency band closest to the frequency band (e.g., frequency band A) are set to the lowest search priority.

[0108] Understandably, a frequency band (e.g., frequency band A) in the first information and at least one frequency band closest to it are both frequency bands that have not been searched in the first information. If the frequency band (e.g., frequency band A) in the first information and at least one frequency band closest to it have already been searched by the terminal device, their search priority will not be adjusted. If only some frequency bands in the frequency band (e.g., frequency band A) in the first information and at least one frequency band closest to it have not been searched, only the search priority of the unsearched frequency bands will be adjusted. By setting a frequency band in the first information and at least one frequency band closest to it to be frequency bands that have not been searched in the first information, duplicate searches can be avoided and search efficiency can be improved.

[0109] In this embodiment, after the second SIM of the terminal device completes cell camping, in response to the second SIM completing cell camping in a frequency band (e.g., frequency band A), the frequency band (e.g., frequency band A) and adjacent frequency bands in the first information can be actively adjusted. The adjustment method includes moving the position of the frequency band identifiers of frequency bands that are the same as or adjacent to the frequency band (e.g., frequency band A) in the first information to the end of the frequency band identifiers included in the first information. In this embodiment, the frequency band (e.g., frequency band A) serves as the second radio frequency resource. By lowering the search priority of frequency bands in the first information with low anti-interference levels with the second radio frequency resource, the anti-interference level between the first and second radio frequency resources is actively changed, reducing the probability of radio frequency channel resource conflicts between the first and second SIMs.

[0110] Method 5:

[0111] In response to the second SIM completing cell camping in a frequency band (e.g., frequency band A), searching for the first SIM's camping cell in that frequency band (e.g., frequency band A) is prohibited for a second duration; or, searching for the first SIM's camping cell in that frequency band (e.g., frequency band A) and at least one frequency band closest to that frequency band (e.g., frequency band A) is prohibited for a second duration.

[0112] In this embodiment, the second duration is longer than the first duration. The second duration can be determined based on empirical or experimental values, and this disclosure does not impose any specific limitations. Within the second duration, the terminal device selects at least one frequency band that is not prohibited in the first information for searching, so that during the process of searching for the cell where the first SIM is camped, the terminal device finally searches for a frequency band with low anti-interference level with the frequency band where the cell where the second SIM is camped is located.

[0113] A variation of this method 5 is as follows: in response to the second SIM completing cell camping in a frequency band (e.g., frequency band A), and the frequency band (e.g., frequency band A) and at least one frequency band closest to the frequency band (e.g., frequency band A) being frequency bands not searched in the first information, searching for the camping cell of the first SIM in the frequency band (e.g., frequency band A) is prohibited for a second duration; or, searching for the camping cell of the first SIM in the frequency band (e.g., frequency band A) and at least one frequency band closest to the frequency band (e.g., frequency band A) is prohibited for a second duration.

[0114] Understandably, a frequency band in the first information (e.g., frequency band A) and at least one frequency band closest to that frequency band (e.g., frequency band A) are both frequency bands that have not been searched in the first information. If the frequency band in the first information (e.g., frequency band A) and at least one frequency band closest to that frequency band (e.g., frequency band A) have already been searched by the terminal, they will not be blocked during the second time period. If only some frequency bands in the first information (e.g., frequency band A) and at least one frequency band closest to that frequency band (e.g., frequency band A) have not been searched, only the unsearched frequency bands will be blocked during the second time period. By setting a frequency band in the first information and at least one frequency band closest to that frequency band to be frequency bands that have not been searched in the first information, duplicate searches can be avoided, and search efficiency can be improved.

[0115] In this embodiment, after the second SIM of the terminal device completes cell camping, in response to the second SIM completing cell camping in a frequency band (e.g., frequency band A), the frequency band (e.g., frequency band A) and adjacent frequency bands in the first information can be actively adjusted. The adjustment method includes prohibiting the search for the frequency band (e.g., frequency band A) and adjacent frequency bands in the first information for a second duration. In this embodiment, the frequency band (e.g., frequency band A) is used as a second radio frequency resource. By prohibiting frequency bands in the first information with low anti-interference levels with the second radio frequency resource for a second duration, the anti-interference level between the first radio frequency resource and the second radio frequency resource is actively changed, reducing the probability of radio frequency channel resource conflicts between the first SIM and the second SIM.

[0116] In this embodiment, by setting the search priority for the search frequency band in the first information to actively select the search frequency band to search for the cell where the first SIM is camped, the radio frequency resources of the first SIM can be dynamically adjusted, reducing the probability of conflict with the radio frequency resources of other SIMs. This allows multiple SIMs to make full use of radio frequency resources, improving the communication performance of multi-SIM services and also enhancing the user experience.

[0117] Exemplary embodiments of this disclosure provide a cell search method, including:

[0118] While performing step S101 or step S102, at least one frequency band is determined from multiple frequency bands based on the second information, and the camping cell of the second SIM is searched on the at least one frequency band.

[0119] The second information includes search priorities for multiple frequency bands. The search priority of each frequency band indicates the degree of interference immunity between the third radio frequency resource and the first radio frequency resource. The third radio frequency resource refers to the radio frequency resource used to search for the second SIM's camp cell within the frequency band, and the first radio frequency resource refers to the radio frequency resource used to search for the first SIM's camp cell. The greater the frequency range difference between the third and first radio frequency resources, the better the interference immunity. The closer the frequency ranges of the third and first radio frequency resources are, the worse the interference immunity. When the frequency ranges of the third and first radio frequency resources overlap, the interference immunity is the worst. Therefore, the degree of interference immunity between the third and first radio frequency resources can be adjusted by adjusting the search priorities of the frequency bands in the third information.

[0120] Similarly, in this embodiment, the method for maintaining or modifying the second information during the process of searching for the second SIM's camp cell is similar to the five methods mentioned above, and will not be repeated here.

[0121] In some embodiments, the multiple frequency bands corresponding to the first information and the multiple frequency bands corresponding to the second information are the same. Alternatively, the frequency band identifiers included in the first information and the frequency band identifiers included in the second information are the same.

[0122] In this embodiment, the terminal device sets the search priority for the search frequency band in the second information to actively select the search frequency band to search for the cell where the second SIM is camped. This can dynamically adjust the radio frequency resources of the second SIM, reduce the probability of conflict with the radio frequency resources of other SIMs, and enable multiple SIMs to make full use of radio frequency resources, thereby improving the communication performance of multi-SIM services and enhancing the user experience.

[0123] For ease of understanding, a specific embodiment is given below to describe the cell search method of this disclosure, such as... Figure 2 As shown.

[0124] Step S201: In response to the terminal device powering on, establish the first information and the second information.

[0125] Establish the first information, including setting the search priority of each frequency band in the first information to the highest search priority.

[0126] Establish the second information, including setting the search priority of each frequency band in the second information to the highest search priority.

[0127] Step S202: Determine at least one frequency band from multiple frequency bands based on the first information, and search for the cell where the first SIM can camp on the at least one frequency band. Determine at least one frequency band from multiple frequency bands based on the second information, and search for the cell where the second SIM can camp on the at least one frequency band.

[0128] Determining at least one frequency band from multiple frequency bands based on first information includes: determining at least one frequency band with the highest search priority from multiple frequency bands.

[0129] Determining at least one frequency band with the highest search priority from multiple frequency bands includes: selecting at least one frequency band that appears first in the first information, the first information including multiple frequency band identifiers sorted from high to low search priority.

[0130] During the execution of step S202, in response to searching for the camping cell of the second SIM within a frequency band, the first information can be adjusted in the following three ways.

[0131] Method 1: Set the search priority of one frequency band in the first information to the lowest search priority, or set the search priority of that frequency band in the first information and the search priority of at least one frequency band closest to that frequency band to the lowest search priority.

[0132] Setting the search priority of a frequency band in the first information to the lowest search priority means adjusting the frequency band identifier of a frequency band in the first information to the last position of the frequency band identifiers included in the first information.

[0133] Setting the search priority of a frequency band in the first information and the search priority of at least one frequency band closest to that frequency band to the lowest search priority means: adjusting the frequency band identifier of a frequency band in the first information and the frequency band identifier of at least one frequency band closest to that frequency band to the last position of the frequency band identifiers included in the first information.

[0134] Method 2: Determine the search priority of other frequency bands in the first information, excluding the specified frequency band and those already searched, based on a given frequency band.

[0135] Determining the search priority of other frequency bands in the first information other than the first frequency band and the frequency bands that have already been searched, based on a frequency band, includes: calculating the frequency band distance between the other frequency bands in the first information other than the first frequency band and the frequency bands that have already been searched and the first frequency band, and setting the search priority of each frequency band according to the frequency band distance.

[0136] Method 3: Prohibit the search for the first SIM's registered cell on the first frequency band for the first time period, or prohibit the search for the first SIM's registered cell on the first frequency band and on at least one frequency band closest to the first frequency band for the first time period.

[0137] Step S203: The second SIM completes cell camping within a frequency band (frequency band A).

[0138] Step S204: Determine at least one frequency band from multiple frequency bands based on the first information, and search for the camping cell of the first SIM on the at least one frequency band.

[0139] Step S205: The first SIM completes cell camping within a frequency band (frequency band B).

[0140] To facilitate understanding, a specific example is given below to describe the cell search method disclosed herein, such as... Figure 3 As shown.

[0141] In this example, the terminal device is in a newly powered-on state. The terminal device includes a first SIM and a second SIM. Both the first SIM and the second SIM are 5G cards from the same operator and are not connected to the network.

[0142] Step S301: Establish the first information and the second information.

[0143] The first information corresponds to the first SIM. The first information includes the frequency band identifiers of multiple frequency bands that the terminal device needs to search when searching for the cell where the first SIM is camped, and the search priority of these frequency band identifiers is the highest search priority.

[0144] The second information corresponds to the second SIM. The second information includes the frequency band identifiers of multiple frequency bands that the terminal device needs to search when searching for the camp cell of the second SIM, and the search priority of these frequency band identifiers is the highest search priority.

[0145] Step S302: Search for the cell where the first SIM is registered based on the first information, and search for the cell where the second SIM is registered based on the second information.

[0146] In step S302, when searching for the second SIM's registered cell based on the second information, the first information is also adjusted.

[0147] When neither the first SIM nor the second SIM is connected to the network, the terminal device will adjust the first information corresponding to the first SIM during the process of searching for the cell where the second SIM is camped. Moreover, the first information corresponding to the first SIM will be adjusted once every time the terminal device changes to a different frequency band to search for the cell where the second SIM is camped.

[0148] For example, when the terminal device searches for the cell where the second SIM is camped on frequency band A, the first information corresponding to the first SIM is adjusted: the search priority of frequency band A and the search priorities of frequency bands B and C (which are closest to frequency band A and have low anti-interference capabilities with frequency band A) in the first information are set to the lowest search priority.

[0149] In step S302, when searching for the cell where the first SIM is registered based on the first information, the second information is also adjusted.

[0150] When neither the first SIM nor the second SIM is connected to the network, the terminal device will adjust the second information corresponding to the second SIM during the process of searching for the cell where the first SIM is camped. The second information corresponding to the second SIM will be adjusted once every time the terminal device changes to a different frequency band to search for the cell where the first SIM is camped.

[0151] For example, when the terminal device searches for the cell where the first SIM is camped on frequency band D, the second information corresponding to the second SIM is adjusted: the search priority of frequency band D and the search priorities of the closest frequency bands E and F (frequency bands E and F are both frequency bands with low anti-interference with frequency band D) in the second information are set to the lowest search priority.

[0152] Step S303: The second SIM completes cell registration, while the first SIM does not. Update the first information.

[0153] For example, if the second SIM completes cell camping in frequency band G, then the search priority of frequency band G in the first information and the search priorities of the nearest frequency bands H and I (frequency bands H and I are both frequency bands with low anti-interference capability with frequency band G) are set to the lowest search priority.

[0154] Step S304: Search for the cell where the first SIM is registered based on the first information.

[0155] Based on the adjusted first information, the terminal device continues to search on subsequent frequency bands until the first SIM also successfully completes cell registration.

[0156] The cell search method disclosed herein can actively select the search frequency band to search for the cell where the first SIM is camped by setting the search priority of the search frequency band in the first information. This can dynamically adjust the radio frequency resources of the first SIM, reduce the probability of conflict with the radio frequency resources of other SIMs, enable multiple SIMs to make full use of radio frequency resources, improve the communication performance of multi-SIM services, and also improve the user experience.

[0157] Exemplary embodiments of this disclosure provide a cell search device, including a first user identification module (SIM) and a second SIM, such as... Figure 4 The present disclosure presents a block diagram of a cell search device.

[0158] The block diagram includes a first determining module 401 and a first searching module 402. The first determining module 401 is configured to determine at least one frequency band from multiple frequency bands based on first information. The first information includes search priorities for the multiple frequency bands. The search priority of each frequency band represents the anti-interference level between a first radio frequency resource and a second radio frequency resource. The first radio frequency resource refers to the radio frequency resource used to search for the cell where the first SIM is camped within the frequency band. The second radio frequency resource refers to the radio frequency resource used to search for the cell where the second SIM is camped, or the radio frequency resource used by the second SIM in the camping cell. The first searching module 402 is configured to search for the cell where the first SIM is camped in at least one frequency band.

[0159] In this embodiment, by setting the search priority for the search frequency band in the first information to actively select the search frequency band to search for the cell where the first SIM is camped, the radio frequency resources of the first SIM can be dynamically adjusted, reducing the probability of conflict with the radio frequency resources of other SIMs. This allows multiple SIMs to make full use of radio frequency resources, improving the communication performance of multi-SIM services and also enhancing the user experience.

[0160] In some exemplary embodiments of this disclosure, the first determining module 401 is further configured to:

[0161] Determine at least one frequency band with the highest search priority from multiple frequency bands.

[0162] In some exemplary embodiments of this disclosure, the first determining module 401 is further configured to:

[0163] In response to searching for a second SIM's camping cell within a frequency band, the search priority of one frequency band in the first information is set to the lowest search priority, or the search priority of one frequency band in the first information and the search priority of at least one frequency band closest to the first frequency band are set to the lowest search priority.

[0164] In some exemplary embodiments of this disclosure, the first determining module 401 is further configured to:

[0165] In response to searching for the camping cell of the second SIM within a frequency band, the search priority of other frequency bands in the first information, excluding the first frequency band and the frequency bands that have already been searched, is determined based on the frequency band.

[0166] In some exemplary embodiments of this disclosure, the first determining module 401 is further configured to:

[0167] In response to searching for the camping cell of the second SIM in a frequency band, searching for the camping cell of the first SIM in a frequency band is prohibited for a first duration, or searching for the camping cell of the first SIM in a frequency band and at least one frequency band closest to the first frequency band is prohibited for a first duration.

[0168] In some exemplary embodiments of this disclosure, the first determining module 401 is further configured to:

[0169] In response to the second SIM completing cell camping within a frequency band, the search priority of one frequency band in the first information is set to the lowest search priority, or the search priority of one frequency band in the first information and at least one frequency band closest to a frequency band are set to the lowest search priority.

[0170] In some exemplary embodiments of this disclosure, the first determining module 401 is further configured to:

[0171] In response to the second SIM completing cell camping in a frequency band, searching for the first SIM's camping cell in a frequency band is prohibited for a second duration, or searching for the first SIM's camping cell in a frequency band and at least one frequency band closest to the first SIM is prohibited for a second duration.

[0172] In some exemplary embodiments of this disclosure, a frequency band in the first information and at least one frequency band closest to a frequency band are both frequency bands that have not been searched in the first information.

[0173] In some exemplary embodiments of this disclosure, the cell search device further includes an establishment module configured to:

[0174] In response to the terminal device powering on, the first information is established. The multiple frequency bands are either the frequency bands corresponding to the initial cell search as agreed in the protocol, or the multiple frequency bands are multiple frequency bands that were saved when the device was powered off last time.

[0175] In some exemplary embodiments of this disclosure, the establishment module is further configured to:

[0176] Set the search priority of each frequency band in the first information to the highest search priority.

[0177] In some exemplary embodiments of this disclosure, the cell search device further includes:

[0178] The second determining module is configured to determine at least one frequency band from multiple frequency bands based on second information. The second information includes the search priorities of multiple frequency bands. The search priority of each frequency band represents the anti-interference degree between the third radio frequency resource and the first radio frequency resource. The third radio frequency resource refers to the radio frequency resource used to search for the camping cell of the second SIM within the frequency band. The first radio frequency resource refers to the radio frequency resource used to search for the camping cell of the first SIM.

[0179] The second search module is configured to search for the camping cell of the second SIM in at least one frequency band.

[0180] Regarding the cell search device in the above embodiments, the specific methods by which each module performs its operations have been described in detail in the embodiments related to the method, and will not be elaborated here.

[0181] Figure 5 This is a block diagram of an electronic device 500 according to an exemplary embodiment.

[0182] Electronic device 500 includes processor 520 and memory 504 for storing executable instructions of processor 520, wherein processor 520 is configured to perform the cell search method provided in the exemplary embodiments of this disclosure.

[0183] Reference Figure 5 The electronic device 500 may include one or more of the following components: processing component 502, memory 504, power supply component 506, multimedia component 508, audio component 510, input / output (I / O) interface 512, sensor component 514, and communication component 516.

[0184] Processing component 502 typically controls the overall operation of electronic device 500, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 502 may include one or more processors 520 to execute instructions to complete all or part of the steps of the methods described above. Furthermore, processing component 502 may include one or more modules to facilitate interaction between processing component 502 and other components. For example, processing component 502 may include a multimedia module to facilitate interaction between multimedia component 508 and processing component 502.

[0185] Memory 504 is configured to store various types of data to support the operation of electronic device 500. Examples of such data include instructions for any application or method operating on electronic device 500, contact data, phonebook data, messages, pictures, videos, etc. Memory 504 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0186] Power supply component 506 provides power to various components of electronic device 500. Power supply component 506 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 500.

[0187] Multimedia component 508 includes a screen that provides an output interface between the electronic device 500 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 508 includes a front-facing camera and / or a rear-facing camera. When the electronic device 500 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0188] Audio component 510 is configured to output and / or input audio signals. For example, audio component 510 includes a microphone (MIC) configured to receive external audio signals when electronic device 500 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 504 or transmitted via communication component 516. In some embodiments, audio component 510 also includes a speaker for outputting audio signals.

[0189] I / O interface 512 provides an interface between processing component 502 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0190] Sensor assembly 514 includes one or more sensors for providing state assessments of various aspects of electronic device 500. For example, sensor assembly 514 may detect the on / off state of electronic device 500, the relative positioning of components such as the display and keypad of electronic device 500, changes in position of electronic device 500 or a component of electronic device 500, the presence or absence of user contact with electronic device 500, orientation or acceleration / deceleration of electronic device 500, and temperature changes of electronic device 500. Sensor assembly 514 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 514 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 514 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0191] Communication component 516 is configured to facilitate wired or wireless communication between electronic device 500 and other devices. Electronic device 500 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 516 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 516 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0192] In an exemplary embodiment, the electronic device 500 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0193] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 504 including instructions, which can be executed by a processor 520 of an electronic device 500 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0194] A non-transitory computer-readable storage medium, when the instructions in the storage medium are executed by a processor of an electronic device, enables the electronic device to perform the cell search method provided in exemplary embodiments of this disclosure.

[0195] A chip includes a processor and an input / output interface, the input / output interface being used to receive signals from other devices outside the chip and transmit them to the processor, or to send signals from the processor to other devices outside the chip, the processor being used to implement the cell search method provided by exemplary embodiments of this disclosure through logic circuits or executing code instructions.

[0196] In this embodiment, the chip includes a baseband chip. By setting the search priority for the search frequency band in the first information to actively select the search frequency band to search for the first SIM's camp cell, the radio frequency resources of the first SIM can be dynamically adjusted, reducing the probability of conflict with the radio frequency resources of other SIMs. This allows multiple SIMs to fully utilize radio frequency resources, improving the communication performance of multi-SIM services and also improving the chip's execution efficiency.

[0197] A computer program product includes computer instructions stored in a computer-readable storage medium; a processor of an electronic device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the electronic device to perform the cell search method provided in the exemplary embodiments of this disclosure.

[0198] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0199] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A cell search method, characterized in that, The method includes: At least one frequency band is determined from multiple frequency bands based on first information, the first information including the search priority of the multiple frequency bands, the search priority of each frequency band representing the anti-interference degree between the first radio frequency resource and the second radio frequency resource, the first radio frequency resource refers to the radio frequency resource used to search for the camping cell of the first user identification module SIM in the frequency band, the second radio frequency resource refers to the radio frequency resource used to search for the camping cell of the second SIM, or the radio frequency resource used by the second SIM in the camping cell; Search for the cell where the first SIM is stationed on at least one frequency band.

2. The cell search method according to claim 1, characterized in that, The step of determining at least one frequency band from multiple frequency bands based on the first information includes: Determine at least one frequency band with the highest search priority from multiple frequency bands.

3. The cell search method according to claim 2, characterized in that, The method further includes: In response to searching for the camping cell of the second SIM within a frequency band, the search priority of the frequency band in the first information is set to the lowest search priority, or the search priority of the frequency band in the first information and the search priority of at least one frequency band closest to the frequency band are set to the lowest search priority.

4. The cell search method according to claim 2, characterized in that, The method further includes: In response to searching for the camping cell of the second SIM within a frequency band, the search priority of other frequency bands in the first information other than the frequency band and the frequency bands that have already been searched is determined based on the frequency band.

5. The cell search method according to claim 2, characterized in that, The method further includes: In response to searching for the camping cell of the second SIM in a frequency band, searching for the camping cell of the first SIM in the frequency band is prohibited for a first duration, or searching for the camping cell of the first SIM in the frequency band and at least one frequency band closest to the frequency band is prohibited for a first duration.

6. The cell search method according to claim 3, characterized in that, The method further includes: In response to the second SIM completing cell camping in a frequency band, the search priority of the frequency band in the first information is set to the lowest search priority, or the search priority of the frequency band in the first information and at least one frequency band closest to the frequency band are set to the lowest search priority.

7. The cell search method according to claim 5, characterized in that, The method further includes: In response to the second SIM completing cell camping in a frequency band, searching for the first SIM's camping cell in the first frequency band is prohibited for a second duration, or searching for the first SIM's camping cell in the first frequency band and at least one frequency band closest to the first frequency band is prohibited for a second duration.

8. The cell search method according to any one of claims 3, 5-7, characterized in that, The frequency band mentioned in the first information and the at least one frequency band closest to the first frequency band are both frequency bands that have not been searched in the first information.

9. The cell search method according to claim 2, characterized in that, The method further includes: In response to the terminal device powering on, the first information is established, wherein the multiple frequency bands are the frequency bands corresponding to the initial cell search as agreed in the protocol, or the multiple frequency bands are multiple frequency bands that were saved when the device was powered off last time.

10. The cell search method according to claim 9, characterized in that, Establishing the first information includes: Set the search priority of each frequency band in the first information to the highest search priority.

11. The cell search method according to any one of claims 1 to 7, characterized in that, The method further includes: At least one frequency band is determined from the plurality of frequency bands based on the second information, the second information including the search priority of the plurality of frequency bands, the search priority of each frequency band representing the anti-interference degree between the third radio frequency resource and the first radio frequency resource, the third radio frequency resource being the radio frequency resource used to search for the camping cell of the second SIM within the frequency band, and the first radio frequency resource being the radio frequency resource used to search for the camping cell of the first SIM. Search for the second SIM's camping cell on at least one frequency band.

12. A cell search device, characterized in that, The device includes: A first determining module is configured to determine at least one frequency band from multiple frequency bands based on first information, the first information including the search priority of the multiple frequency bands, the search priority of each frequency band representing the anti-interference degree between a first radio frequency resource and a second radio frequency resource, the first radio frequency resource being the radio frequency resource used to search for the camping cell of a first user identification module (SIM) within the frequency band, and the second radio frequency resource being the radio frequency resource used to search for the camping cell of a second SIM, or the radio frequency resource used by the second SIM in the camping cell; The first search module is configured to search for the camping cells of the first SIM on the at least one frequency band.

13. An electronic device, characterized in that, include: processor; Memory used to store processor-executable instructions; The processor is configured to perform the cell search method as described in any one of claims 1-11.

14. A non-transitory computer-readable storage medium, characterized in that, When the instructions in the storage medium are executed by the processor of the electronic device, the electronic device is able to perform the cell search method as described in any one of claims 1-11.

15. A chip, characterized in that, The device includes a processor and an input / output interface, wherein the input / output interface is used to receive signals from other devices outside the chip and transmit them to the processor or to send signals from the processor to other devices outside the chip, and the processor is used to implement the cell search method as described in any one of claims 1-11 through logic circuits or executing code instructions.

16. A computer program product, characterized in that, The computer program product includes computer instructions stored in a computer-readable storage medium; a processor of an electronic device reads the computer instructions from the computer-readable storage medium and executes the computer instructions to cause the electronic device to perform the cell search method as described in any one of claims 1 to 11.

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