Cell reselection method, terminal and storage medium

Abstract

Disclosed in an embodiment of the present application are a cell reselection method, a terminal and a storage medium, the terminal residing in a first cell through cell selection, the first cell comprising a plurality of carriers, the method comprising: determining a target cell reselection rule from a first cell reselection rule and a second cell reselection rule based on the signal quality of a target carrier in the first cell; wherein the first cell reselection rule is a cell reselection rule set for a second cell which shares a base band with the first cell, the second cell reselection rule is a cell reselection rule set for a third cell which does not share the base band with the first cell, and the second cell and the third cell are neighbor cells of the first cell and respectively comprise a plurality of carriers; and performing cell reselection according to the target cell reselection rule.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communication technology, and in particular, to a cell reselection method, a terminal, and a storage medium. Background Art

[0002] Cell reselection is the process in which a terminal selects an optimal cell to provide service signals by monitoring the signal quality of neighboring cells and the current cell in idle mode.

[0003] The existing multi-band fusion networking technology has problems such as complex protocol design, large latency caused by the primary and secondary concepts, and high energy consumption. Therefore, it is considered to regard the carriers of multiple frequency bands as one service cell to eliminate the primary and secondary concepts. In the scenario where multiple carriers are regarded as one cell, if the terminal still uses the traditional single cell reselection process, the flexibility of cell reselection is poor, and it is difficult to ensure that the terminal reselects to the appropriate cell. Summary of the invention

[0004] The embodiments of the present application provide a cell reselection method, a terminal and a storage medium, and the terminal can timely select an appropriate cell reselection rule to perform cell reselection, thereby improving the flexibility of cell reselection, ensuring that the terminal always selects a better cell to provide services, and improving performance.

[0005] The technical solution of the embodiment of the present application is implemented as follows:

[0006] An embodiment of the present application provides a cell reselection method, which is applied to a terminal, wherein the terminal resides in a first cell through cell selection, and the first cell includes multiple carriers. The method includes:

[0007] Determine, based on the signal quality of the target carrier in the first cell, a target cell reselection rule from a first cell reselection rule and a second cell reselection rule; wherein the first cell reselection rule is a cell reselection rule set for a second cell that shares a baseband with the first cell, and the second cell reselection rule is a cell reselection rule set for a third cell that does not share a baseband with the first cell, and the second cell and the third cell are neighboring cells of the first cell and each include multiple carriers;

[0008] Perform cell reselection according to the target cell reselection rule.

[0009] In the above method, determining the target cell reselection rule from the first cell reselection rule and the second cell reselection rule based on the signal quality of the target carrier among the multiple carriers includes:

[0010] If the signal quality of the target carrier is greater than a target threshold value, determining the first cell reselection rule as the target cell reselection rule;

[0011] If the signal quality of the target carrier is not greater than the target threshold, the first cell reselection rule and / or the second cell reselection rule is determined as the target cell reselection rule.

[0012] In the above method, the first cell reselection rule is to perform cell reselection based on any co-frequency or hetero-frequency carrier between the first cell and the second cell.

[0013] In the above method, the target cell reselection rule includes the first cell reselection rule, the first cell includes a first carrier, the first carrier is any inter-frequency carrier of the first cell relative to the second cell, the second cell includes a second carrier, the second carrier is an inter-frequency carrier of the second cell relative to the first cell and having the same priority as the first carrier, and performing cell reselection according to the target cell reselection rule includes:

[0014] If the second cell has the same priority as the first cell, measurement is not started when the signal quality of the first carrier in the first cell is greater than a first threshold value, otherwise the signal quality of the second carrier in the second cell is measured;

[0015] The signal quality of the first carrier in the first cell and the signal quality of the second carrier in the second cell are sorted according to the R criterion. If the signal quality of the second carrier in the second cell is greater than the signal quality of the first carrier in the first cell, the cell is reselected to the second cell.

[0016] In the above method, the target cell reselection rule includes the first cell reselection rule, the second cell includes a second carrier, the second carrier is any inter-frequency carrier of the second cell relative to the first cell, and the performing cell reselection according to the target cell reselection rule includes:

[0017] If the priority of the second cell is higher than that of the first cell, periodically measuring the signal quality of the second carrier in the second cell;

[0018] If the signal quality of the second carrier in the second cell is greater than a second threshold value and lasts for longer than a first duration, and the terminal stays in the first cell for longer than a second duration, the cell is reselected to the second cell.

[0019] In the above method, the target cell reselection rule includes the first cell reselection rule, the first cell includes a first carrier, the first carrier is any inter-frequency carrier of the first cell relative to the second cell, the second cell includes a second carrier, the second carrier is an inter-frequency carrier of the second cell relative to the first cell and having the same priority as the first carrier, and performing cell reselection according to the target cell reselection rule includes:

[0020] if the priority of the second cell is lower than that of the first cell, when the signal quality of the first carrier in the first cell is greater than a first threshold, measurement is not started; otherwise, the signal quality of the second carrier in the second cell is measured;

[0021] If the signal quality of the first carrier in the first cell is less than a third threshold value, the signal quality of the second carrier in the second cell is greater than a fourth threshold value and the duration exceeds a first duration, and the terminal stays in the first cell for more than a second duration, the cell reselects to the second cell.

[0022] In the above method, the target cell reselection rule includes the first cell reselection rule, the first cell includes a third carrier, the second cell includes a fourth carrier, the third carrier and the fourth carrier are co-frequency carriers, and performing cell reselection according to the target cell reselection rule includes:

[0023] If the signal quality of the third carrier in the first cell is greater than a fifth threshold, measurement is not started; otherwise, the signal quality of the fourth carrier in the second cell is measured;

[0024] The signal quality of the third carrier in the first cell and the signal quality of the fourth carrier in the second cell are sorted according to the R criterion. If the signal quality of the fourth carrier in the second cell is greater than the signal quality of the third carrier in the first cell, the cell is reselected to the second cell.

[0025] In the above method, the second cell reselection rule is to perform cell reselection based on all same-frequency or all different-frequency carriers of the first cell and the third cell.

[0026] In the above method, the target cell reselection rule includes the second cell reselection rule, and performing cell reselection according to the target cell reselection rule includes:

[0027] If the priority of the third cell is the same as the priority of the first cell, measurement is not started when the signal quality of each carrier of the first cell with respect to the co-frequency of the third cell is greater than a sixth threshold value, otherwise the signal quality of the third cell with respect to each carrier of the co-frequency of the first cell is measured;

[0028] When the signal quality of each carrier of the first cell that is different in frequency from the third cell is greater than the sixth threshold, measurement is not started; otherwise, the signal quality of the third cell that is different in frequency from the first cell is measured;

[0029] performing R criterion sorting on signal qualities of carriers of the same frequency between the third cell and the first cell;

[0030] Sorting the signal qualities of the third cell relative to each carrier having a different frequency from the first cell and the carrier having a same priority among each carrier having a different frequency from the first cell relative to the third cell by R criterion;

[0031] If the signal qualities of the carriers of not less than the target number in the third cell are greater than the signal qualities of the corresponding carriers in the third cell, the cell is reselected to the third cell.

[0032] In the above method, the target cell reselection rule includes the second cell reselection rule, and performing cell reselection according to the target cell reselection rule includes:

[0033] If the priority of the third cell is higher than that of the first cell, periodically measuring the signal quality of each carrier of the third cell;

[0034] If the signal quality of any carrier of the third cell is greater than a seventh threshold value and lasts for longer than a first duration, and the terminal stays in the first cell for longer than a second duration, the cell is reselected to the third cell.

[0035] In the above method, the target cell reselection rule includes the second cell reselection rule, and performing cell reselection according to the target cell reselection rule includes:

[0036] If the priority of the third cell is lower than the priority of the first cell, when the signal quality of each carrier of the first cell with respect to the co-frequency of the third cell is less than a sixth threshold value, start measuring the signal quality of each carrier of the third cell with respect to the co-frequency of the first cell;

[0037] When the signal quality of each carrier of the first cell that is different in frequency from the third cell is less than the sixth threshold, start measuring the signal quality of each carrier of the third cell that is different in frequency from the first cell;

[0038] If the signal quality of each carrier of the first cell is less than the eighth threshold value, the signal quality of each carrier of the third cell is greater than the ninth threshold value, and the duration exceeds the first duration, and the duration that the terminal stays in the first cell exceeds the second duration, the cell is reselected to the third cell.

[0039] In the above method, before performing cell reselection according to the target cell reselection rule, the method further includes:

[0040] Acquire system information of the first cell; wherein the system information includes reselection configuration parameters corresponding to the first cell reselection rule and the second cell reselection rule, respectively, and the reselection configuration parameters corresponding to different cell reselection rules respectively include at least one of the following: cell priority, relevant threshold value, and R criterion related parameter;

[0041] The reselection configuration parameter corresponding to the target cell reselection rule is read from the system information to configure the target cell reselection rule.

[0042] An embodiment of the present application provides a terminal, wherein the terminal resides in a first cell through cell selection, the first cell includes multiple carriers, and the terminal includes:

[0043] A selection module is configured to determine a target cell reselection rule from a first cell reselection rule and a second cell reselection rule based on a signal quality of a target carrier in the first cell; wherein the first cell reselection rule is a cell reselection rule set for a second cell sharing a baseband with the first cell, and the second cell reselection rule is a cell reselection rule set for a third cell that does not share a baseband with the first cell, and the second cell and the third cell are neighboring cells of the first cell and each include multiple carriers;

[0044] The reselection module is used to perform cell reselection according to the target cell reselection rule.

[0045] An embodiment of the present application provides a terminal, including: a processor, a memory, and a communication bus;

[0046] The communication bus is used to realize the communication connection between the processor and the memory;

[0047] The processor is used to execute one or more computer programs stored in the memory to implement a cell reselection method.

[0048] An embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, and the computer program implements a cell reselection method when executed by a processor.

[0049] The embodiment of the present application provides a cell reselection method, terminal and storage medium, the terminal resides in the first cell through cell selection, the first cell includes multiple carriers, the method includes: based on the signal quality of the target carrier in the first cell, determine the target cell reselection rule from the first cell reselection rule and the second cell reselection rule; wherein the first cell reselection rule is a cell reselection rule set for the second cell sharing the same baseband with the first cell, the second cell reselection rule is a cell reselection rule set for the third cell that does not share the same baseband with the first cell, the second cell and the third cell are neighboring cells of the first cell, and each includes multiple carriers; cell reselection is performed according to the target cell reselection rule. The technical solution provided by the embodiment of the present application designs two cell reselection rules according to whether the cells share the same baseband, specifically, cell reselection is performed for the same frequency or different frequency of the same priority, different frequency of high priority and different frequency of low priority, etc., so as to flexibly select the appropriate cell reselection rule for cell reselection based on the carrier signal strength of the cell where the terminal resides, so as to ensure that the terminal always selects a better cell to provide services and improve performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 A schematic diagram of a cell reselection method provided in an embodiment of the present application;

[0051] Figure 2 An exemplary carrier relationship diagram provided for an embodiment of the present application;

[0052] Figure 3 A schematic diagram of a terminal structure provided in an embodiment of the present application Figure 1 ;

[0053] Figure 4 A schematic diagram of a terminal structure provided in an embodiment of the present application Figure 2 . DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0055] The following will specifically describe the technical solution of the present application and how the technical solution of the present application solves the above technical problems through embodiments and in conjunction with the accompanying drawings. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0056] In addition, the technical solutions described in the embodiments of the present application can be combined arbitrarily without conflict.

[0057] The embodiment of the present application provides a cell reselection method, which is implemented by a terminal, and the terminal resides in a first cell through cell selection, and the first cell includes multiple carriers, and the multiple carriers included in the first cell can be co-frequency or heterogeneous. The terminal can be any type of electronic device such as a mobile phone, and the embodiment of the present application is not limited.

[0058] Figure 1 A flowchart of a cell reselection method provided in an embodiment of the present application is shown in FIG. Figure 1 As shown, in the embodiment of the present application, the cell reselection method mainly includes the following steps:

[0059] S101. Determine a target cell reselection rule from a first cell reselection rule and a second cell reselection rule based on a signal quality of a target carrier in a first cell.

[0060] In an embodiment of the present application, the terminal may determine a target cell reselection rule from the first cell reselection rule and the second cell reselection rule based on the signal quality of the target carrier among multiple carriers.

[0061] In the embodiment of the present application, two cell reselection rules can be designed, namely, a first cell reselection rule and a second cell reselection rule, wherein the first cell reselection rule is a cell reselection rule set for a second cell sharing a baseband with the first cell, and the second cell reselection rule is a cell reselection rule set for a third cell that does not share a baseband with the first cell, and the second cell and the third cell are neighboring cells of the first cell, and each includes multiple carriers. The multiple carriers included in the second cell can be of the same frequency or different frequencies, and the multiple carriers included in the third cell can be of the same frequency or different frequencies.

[0062] It should be noted that in the embodiments of the present application, the first cell includes multiple carriers sharing a common baseband, the second cell includes multiple carriers sharing a common baseband, and the third cell includes multiple carriers sharing a common baseband. Whether the cells share a common baseband actually refers to whether the carriers included in the cells share a common baseband, wherein the common baseband may be a common baseband pool. Considering the differences in whether the cells share a common baseband and the differences in whether the carriers share a common baseband, it is necessary to compare the quality of the cells from different angles, and design two cell reselection rules so that the terminal can select appropriate cell reselection rules for cell reselection for neighboring cells with different relationships, so as to reselect the optimal cell.

[0063] It should be noted that, in the embodiment of the present application, the target carrier in the first cell may be the carrier with the lowest frequency band among the multiple carriers included therein, and of course, may also be any designated carrier among the multiple carriers, which is not limited in the embodiment of the present application.

[0064] In an embodiment of the present application, the terminal determines a target cell reselection rule from a first cell reselection rule and a second cell reselection rule based on a signal quality of a target carrier among multiple carriers, including: if the signal quality of the target carrier is greater than a target threshold value, determining the first cell reselection rule as the target cell reselection rule; if the signal quality of the target carrier is not greater than the target threshold value, determining the first cell reselection rule and / or the second cell reselection rule as the target cell reselection rule.

[0065] It should be noted that, in the embodiments of the present application, the target threshold value may be a threshold value set based on actual needs and application scenarios for measuring the signal quality of the target carrier, and the specific target threshold value is not limited in the embodiments of the present application.

[0066] It can be understood that in the embodiments of the present application, whether the cells share the same baseband is handled differently during cell reselection. For example, if carriers 1, 2, and 3 share the same baseband, one cell includes carrier 1 and carrier 2, and the other cell includes carrier 1 and carrier 3. The two cells share the same baseband. The terminal can select the cell of carrier 1 and carrier 2, or the cell of carrier 1 and carrier 3. When the cell is reselected, it is only necessary to switch the carrier from 2 to carrier 3. For example, carriers 4 and 5 share the same baseband and do not share the same baseband with carrier 1 or carrier 2. One cell includes carrier 1 and carrier 2, and the other cell includes carrier 4 and carrier 5. The two cells do not share the same baseband. The terminal can select the cell of carrier 1 and carrier 2, or the cell of carrier 4 and carrier 5. When the cell is reselected, carrier 1 and carrier 2 must be switched to carrier 4 and carrier 5 at the same time. After the terminal resides in the first cell through cell selection, it makes a judgment based on the signal quality of the target carrier. If the signal quality is good, it means that the terminal is in the middle of the first cell, and it only needs to try to reselect to the second cell with the same baseband. If the signal quality is poor, it means that the terminal is at the edge of the first cell, and it can try to reselect to the second cell and the third cell to ensure that a better cell can always be selected to provide services.

[0067] S102. Perform cell reselection according to target cell reselection rules.

[0068] In the embodiment of the present application, after determining the target cell reselection rule, the terminal may perform cell reselection according to the target cell reselection rule.

[0069] It should be noted that in the embodiments of the present application, the first cell reselection rule and the second cell reselection rule involve the application of various threshold values ​​and other parameters, and the terminal needs to obtain these parameters in advance to configure the reselection rules before performing cell reselection.

[0070] In an embodiment of the present application, before the terminal performs cell reselection according to the target cell reselection rule, the terminal further performs the following steps: obtaining system information of the first cell; wherein the system information includes reselection configuration parameters corresponding to the first cell reselection rule and the second cell reselection rule, respectively, and the reselection configuration parameters corresponding to different cell reselection rules respectively include at least one of the following: cell priority, relevant threshold value, R criterion related parameters; reading the reselection configuration parameters corresponding to the target cell reselection rule from the system information, and configuring the target cell reselection rule.

[0071] The following is a detailed description of cell reselection based on the case where the target cell reselection rule includes the first cell reselection rule, wherein the first cell reselection rule may specifically be cell reselection based on any co-frequency or hetero-frequency carrier between the first cell and the second cell.

[0072] In an embodiment of the present application, a target cell reselection rule includes a first cell reselection rule, the first cell includes a first carrier, the first carrier is any hetero-frequency carrier of the first cell relative to the second cell, the second cell includes a second carrier, the second carrier is an hetero-frequency carrier of the second cell relative to the first cell and has the same priority as the first carrier, and cell reselection is performed according to the target cell reselection rule, including: if the second cell has the same priority as the first cell, measurement is not started when the signal quality of the first carrier in the first cell is greater than a first threshold value, otherwise the signal quality of the second carrier in the second cell is measured; the signal quality of the first carrier in the first cell and the signal quality of the second carrier in the second cell are sorted according to the R criterion, and if the signal quality of the second carrier in the second cell is greater than the signal quality of the first carrier in the first cell, the cell is reselected to the second cell.

[0073] It should be noted that in the embodiments of the present application, each cell has its corresponding priority, and each carrier also has its corresponding priority. If the first cell and the second cell have the same priority, since the two cells are of the same importance, the terminal can determine whether to reselect the cell to the second cell based on the carriers of the same priority but different frequencies between the first cell and the second cell.

[0074] It can be understood that in the embodiment of the present application, when the signal quality of the first carrier in the first cell is greater than the first threshold value, it indicates that the first cell is better, so the measurement is not started, otherwise the signal quality of the second carrier in the second cell is measured. If the signal quality of the second carrier in the second cell is greater than the signal quality of the first carrier in the first cell, it indicates that the second cell is better than the first cell, based on which the terminal can reselect to the second cell.

[0075] In an embodiment of the present application, the target cell reselection rule includes a first cell reselection rule, the second cell includes a second carrier, the second carrier is any heterofrequency carrier of the second cell relative to the first cell, and the terminal performs cell reselection according to the target cell reselection rule, including: if the priority of the second cell is higher than that of the first cell, periodically measuring the signal quality of the second carrier in the second cell; if the signal quality of the second carrier in the second cell is greater than a second threshold value and lasts for more than the first time length, and the terminal stays in the first cell for more than the second time length, the cell is reselected to the second cell.

[0076] It should be noted that in an embodiment of the present application, if the priority of the second cell is higher than that of the first cell, since the importance of the second cell is higher than that of the first cell, the terminal can directly determine whether to reselect to the second cell based on any heterofrequency carrier of the second cell relative to the first cell.

[0077] It can be understood that in the embodiment of the present application, if the signal quality of the second carrier in the second cell is greater than the second threshold value and the duration exceeds the first duration, it indicates that the second cell is continuously in a good state. In addition, the terminal cell reselection to the second cell must also meet the requirement that the duration of the terminal staying in the first cell exceeds the second duration, the purpose of which is to avoid frequent cell switching of the terminal and excessive power consumption of the terminal.

[0078] In an embodiment of the present application, a target cell reselection rule includes a first cell reselection rule, the first cell includes a first carrier, the first carrier is any hetero-frequency carrier of the first cell relative to the second cell, the second cell includes a second carrier, the second carrier is a hetero-frequency carrier of the second cell relative to the first cell and has the same priority as the first carrier, and the terminal performs cell reselection according to the target cell reselection rule, including: if the priority of the second cell is lower than that of the first cell, measurement is not started when the signal quality of the first carrier in the first cell is greater than a first threshold value, otherwise the signal quality of the second carrier in the second cell is measured; if the signal quality of the first carrier in the first cell is less than a third threshold value, the signal quality of the second carrier in the second cell is greater than a fourth threshold value and the duration exceeds the first duration, and the duration for which the terminal resides in the first cell exceeds the second duration, the cell is reselected to the second cell.

[0079] It should be noted that in an embodiment of the present application, if the priority of the second cell is lower than that of the first cell, since the importance of the second cell is lower than that of the first cell, the terminal can judge whether the second cell is better than the first cell based on the carriers of the same priority but different frequencies between the first cell and the second cell, thereby determining whether to reselect the cell to the second cell.

[0080] It can be understood that in an embodiment of the present application, when the signal quality of the first carrier in the first cell is greater than the first threshold value, it indicates that the first cell is better, therefore, the measurement is not started, otherwise the signal quality of the second carrier in the second cell is measured. If the signal quality of the first carrier in the first cell is less than the third threshold value, and the signal quality of the second carrier in the second cell is greater than the fourth threshold value and the duration exceeds the first duration, it indicates that the first cell is poor and the second cell is continuously in a better state. In addition, the terminal cell reselection to the second cell must also satisfy the duration of the terminal staying in the first cell for more than the second duration, the purpose of which is to avoid frequent cell switching of the terminal and excessive power consumption of the terminal.

[0081] In an embodiment of the present application, the target cell reselection rule includes a first cell reselection rule, the first cell includes a third carrier, the second cell includes a fourth carrier, the third carrier and the fourth carrier are co-frequency carriers, and the terminal performs cell reselection according to the target cell reselection rule, including: if the signal quality of the third carrier in the first cell is greater than the fifth threshold value, the measurement is not started, otherwise the signal quality of the fourth carrier in the second cell is measured; the signal quality of the third carrier in the first cell and the signal quality of the fourth carrier in the second cell are sorted according to the R criterion, and if the signal quality of the fourth carrier in the second cell is greater than the signal quality of the third carrier in the first cell, the cell is reselected to the second cell.

[0082] It should be noted that, in the embodiment of the present application, if there is a co-frequency carrier between the first cell and the second cell, the terminal can determine whether to reselect to the second cell based on the co-frequency carrier between the first cell and the second cell. Among them, the third carrier and the fourth carrier can be the same carrier, using the same symbol identification.

[0083] It can be understood that in the embodiment of the present application, if the signal quality of the third carrier in the first cell is greater than the fifth threshold value, it indicates that the first cell is better and the measurement is not started, otherwise the signal quality of the fourth carrier in the second cell is measured. If the signal quality of the fourth carrier in the second cell is greater than the signal quality of the third carrier in the first cell, it indicates that the second cell is better than the first cell, based on which the terminal can reselect to the second cell.

[0084] The following is a detailed description of cell reselection based on the case where the target cell reselection rule includes the second cell reselection rule, wherein the second cell reselection rule may specifically be cell reselection based on all co-frequency or all hetero-frequency carriers of the first cell and the third cell.

[0085] In an embodiment of the present application, the target cell reselection rule includes a second cell reselection rule, and the terminal performs cell reselection according to the target cell reselection rule, including: if the priority of the third cell is the same as the priority of the first cell, the measurement is not started when the signal quality of each carrier of the first cell with respect to the third cell at the same frequency is greater than the sixth threshold value, otherwise the signal quality of each carrier of the third cell with respect to the first cell at the same frequency is measured; when the signal quality of each carrier of the first cell with respect to the third cell with different frequencies is greater than the sixth threshold value, the measurement is not started, otherwise the signal quality of the third cell with respect to each carrier of different frequencies with respect to the first cell is measured; the signal quality of each carrier of the same frequency between the third cell and the first cell is sorted by the R criterion; the signal quality of the third cell with respect to each carrier of different frequencies with respect to the first cell and the carrier of different frequencies with respect to the third cell, the signal quality of the carriers with the same priority are sorted by the R criterion; if the signal quality of carriers of not less than the target number in the third cell is greater than the signal quality of the corresponding carrier in the third cell, the cell is reselected to the third cell.

[0086] It should be noted that, in an embodiment of the present application, if the third cell has the same priority as the first cell, and when the conditions for measuring the signal quality of the carrier are met, the third cell has a larger number of carriers with better signal quality than the first cell, including a comparison of the signal quality of carriers of the same frequency between the two cells and a comparison of the signal quality of carriers of different frequencies between the two cells. Overall, the third cell is better than the first cell, and therefore, the cell can be reselected to the third cell.

[0087] It can be understood that in the embodiment of the present application, for the comparison of the signal quality of the carrier between the third cell and the first cell, the carriers of the same frequency are compared accordingly, for example, the third cell and the first cell both include carrier 1, carrier 1 is the same frequency carrier of the two cells, and the signal quality of carrier 1 in the third cell is compared with that of carrier 1 in the first cell; the carriers of different frequencies are compared with the same priority, for example, the third cell includes carrier 2, the first cell includes carrier 3, carrier 2 and carrier 3 are different frequencies and have the same priority, and the signal quality of carrier 2 is compared with that of carrier 3. The specific comparison methods are all implemented by sorting by the R criterion.

[0088] In an embodiment of the present application, the target cell reselection rule includes a second cell reselection rule, and the terminal performs cell reselection according to the target cell reselection rule, including: if the priority of the third cell is higher than that of the first cell, periodically measuring the signal quality of each carrier of the third cell; if the signal quality of any carrier of the third cell is greater than a seventh threshold value and lasts for more than the first time length, and the terminal stays in the first cell for more than the second time length, the cell is reselected to the third cell.

[0089] It should be noted that in an embodiment of the present application, if the priority of the third cell is higher than that of the first cell, since the importance of the third cell is higher than that of the first cell, the terminal can determine whether to reselect to the third cell based on any carrier of the third cell.

[0090] It can be understood that in the embodiment of the present application, if the signal quality of any carrier of the third cell is greater than the seventh threshold value and the duration exceeds the first duration, it indicates that the third cell is continuously in a good state. In addition, the terminal cell reselection to the third cell also needs to meet the requirement that the duration of the terminal staying in the first cell exceeds the second duration, the purpose of which is to avoid frequent cell switching of the terminal and avoid excessive power consumption of the terminal.

[0091] In an embodiment of the present application, the target cell reselection rule includes a second cell reselection rule, and the terminal performs cell reselection according to the target cell reselection rule, including: if the priority of the third cell is lower than the priority of the first cell, starting to measure the signal quality of each carrier of the third cell with respect to the first cell when the signal quality of each carrier of the first cell with respect to the third cell with the same frequency is less than a sixth threshold value; starting to measure the signal quality of each carrier of the third cell with respect to the first cell with different frequencies when the signal quality of each carrier of the first cell with respect to the third cell with different frequencies is less than a sixth threshold value; if the signal quality of each carrier of the first cell with respect to the third cell with different frequencies is less than an eighth threshold value, the signal quality of each carrier of the third cell with respect to the first cell with different frequencies is greater than a ninth threshold value, and the duration exceeds the first duration, and the duration for which the terminal resides in the first cell exceeds the second duration, the cell is reselected to the third cell.

[0092] It should be noted that in an embodiment of the present application, if the priority of the third cell is lower than that of the first cell, since the importance of the third cell is lower than that of the first cell, when the conditions for measuring the signal quality of the carrier are met, the terminal can determine whether to reselect to the second cell based on all carriers of the first cell and the third cell.

[0093] It can be understood that in the embodiment of the present application, if the signal quality of each carrier of the first cell is less than the eighth threshold value, and the signal quality of multiple carriers of the third cell is greater than the ninth threshold value and the duration exceeds the first duration, it indicates that the first cell is poor and the third cell is continuously in a good state. In addition, the terminal cell reselection to the third cell must also meet the requirement that the duration of the terminal staying in the first cell exceeds the second duration, the purpose of which is to avoid frequent cell switching of the terminal and excessive power consumption of the terminal.

[0094] The following describes the cell reselection method provided in the present application based on specific examples.

[0095] Figure 2 This is a schematic diagram of an exemplary carrier relationship provided in an embodiment of the present application. Figure 2As shown, base stations 1 to 10 are involved, wherein the carrier of base station 1 is F1, identified as 1, the carrier of base station 2 is F2, identified as 2, the carrier of base station 3 is F3, identified as 3, the carrier of base station 4 is F2, identified as 4, the carrier of base station 5 is F3, identified as 5, and base stations 1 to 5 share the baseband. The carrier of base station 6 is F1, identified as 6, the carrier of base station 7 is F2, identified as 7, the carrier of base station 8 is F3, identified as 8, the carrier of base station 9 is F2, identified as 9, the carrier of base station 10 is F4, identified as 10, and base stations 6 to 10 share the baseband.

[0096] Exemplarily, the cell identification list of cell 1 includes identifications 6, 7 and 8, based on which, cell 1 includes the carriers of base stations 6, 7 and 8, that is, cell 1 includes carriers F1, F2 and F3. Cell 2 is a neighboring cell of cell 1, and the cell identification list of cell 2 includes identifications 6, 9 and 10, based on which, cell 2 includes the carriers of base stations 6, 9 and 10, that is, cell 2 includes carriers F1, F2 and F4, and cell 2 and cell 1 share the same baseband. Cell 3 is also a neighboring cell of cell 1, and the cell identification list of cell 3 includes identifications 1, 2 and 3, based on which, cell 3 includes the carriers of base stations 1, 2 and 3, that is, carriers F1, F2 and F3, and cell 3 does not share the same baseband with cell 1. Combined Figure 2 , if the terminal camps on cell 1 through cell selection, then:

[0097] For the F1, F2 and F3 carriers of cell 1, the F4 carrier of cell 2 is out of frequency with the F3 carrier of cell 1. If cell 1 and cell 2 have the same priority, assuming that the signal quality of the F3 carrier of cell 1 is not greater than the first threshold, the terminal will start measuring the F4 carrier of cell 2 and sort the signal qualities of the two carriers according to the R criterion. When the signal quality of the F4 carrier of cell 2 is better than the signal quality of the F3 carrier of cell 1, the terminal will reselect to cell 2.

[0098] For the F1, F2 and F3 carriers of cell 1, the F4 carrier of cell 2 is out of frequency with the F3 carrier of cell 1. If cell 2 has a higher priority than cell 1, the terminal will start periodic measurement of the F4 carrier of cell 2. When the signal quality of the F4 carrier of cell 2 is greater than the second threshold value and the duration exceeds the first duration, and the duration of the terminal staying in the first cell exceeds the second duration, the terminal will reselect to cell 2.

[0099] For the F1, F2 and F3 carriers of cell 1, the F4 carrier of cell 2 is out of frequency with the F3 carrier of cell 1. If cell 2 has a lower priority than cell 1, assuming that the signal quality of the F3 carrier of cell 1 is not greater than the first threshold, the terminal will start measuring the F4 carrier of cell 2. When the signal quality of the F3 carrier of cell 1 is less than the third threshold, and the signal quality of the F4 carrier of cell 2 is greater than the fourth threshold, and the duration exceeds the first duration, and the terminal stays in the first cell for more than the second duration, the terminal will reselect to cell 2;

[0100] For the F1, F2 and F3 carriers of cell 1, the F1 and F2 carriers of cell 2 are co-frequency carriers with those of cell 1. Assuming that the signal quality of the F2 carrier of cell 1 (equivalent to the third carrier) is not greater than the fifth threshold, the terminal will start measuring the F2 carrier of cell 2 (equivalent to the fourth carrier), and sort the signal qualities of the two carriers according to the R criterion. When the signal quality of the F2 carrier of cell 2 is better than the signal quality of the F2 carrier of cell 1, the terminal will reselect to cell 2.

[0101] For the F1, F2 and F3 carriers of cell 1, all carriers of cell 3 are co-frequency carriers with cell 1. If cell 1 and cell 3 have the same priority, assuming that the signal quality of the F1 carrier of cell 1 is not greater than the sixth threshold value, the terminal will start measuring the F1, F2 and F3 carriers of cell 2, and sort the signal qualities of the co-frequency carriers of these two cells according to the R criterion. Assuming that the target number is 2, the signal quality of the F1 carrier of cell 2 is better than the signal quality of the F1 carrier of cell 1, but the signal quality of the F2 carrier and the F3 carrier of cell 2 are worse than the signal quality of the F2 carrier and the F3 carrier of cell 1, and the terminal will not reselect;

[0102] For the F1, F2 and F3 carriers of cell 1, all carriers of cell 3 are co-frequency carriers with cell 1. If cell 3 has a higher priority than cell 1, the terminal will start periodic measurement of all carriers of cell 3. When the signal quality of the F1 carrier or F2 or F3 of cell 3 is greater than the seventh threshold value and the duration exceeds the first duration, and the duration of the terminal staying in the first cell exceeds the second duration, the terminal will reselect to cell 3.

[0103] For the F1, F2 and F3 carriers of cell 1, all carriers of cell 3 are co-frequency carriers with cell 1. If cell 3 has a lower priority than cell 1, when the signal qualities of the F1, F2 and F3 carriers of cell 1 are all less than the sixth threshold value, the terminal will start measuring all carriers of cell 3. When the signal qualities of the F1, F2 and F3 carriers of cell 1 are all less than the eighth threshold value, and the signal qualities of the F1, F2 and F3 carriers of cell 3 are all greater than the ninth threshold value, and the duration exceeds the first duration, the terminal stays in the first cell for more than the second duration, and the terminal will reselect to cell 3.

[0104] The cell reselection method provided in the embodiment of the present application designs two cell reselection rules according to whether the cells share a common baseband, and performs cell reselection design for carriers of the same frequency or different frequencies with the same priority, different frequencies with high priority, and different frequencies with low priority, respectively. This can ensure that the terminal always selects a better cell to provide services, thereby improving performance.

[0105] An embodiment of the present application further provides a terminal, where the terminal resides in a first cell through cell selection, and the first cell includes multiple carriers. Figure 3 A schematic diagram of a terminal structure provided in an embodiment of the present application Figure 1 .

[0106] like Figure 3 As shown, the terminal includes:

[0107] A selection module 201 is configured to determine a target cell reselection rule from a first cell reselection rule and a second cell reselection rule based on a signal quality of a target carrier in the first cell; wherein the first cell reselection rule is a cell reselection rule set for a second cell sharing a baseband with the first cell, and the second cell reselection rule is a cell reselection rule set for a third cell that does not share a baseband with the first cell, and the second cell and the third cell are neighboring cells of the first cell and each include multiple carriers;

[0108] The reselection module 202 is configured to perform cell reselection according to the target cell reselection rule.

[0109] In one embodiment of the present application, the selection module 201 is used to determine the first cell reselection rule as the target cell reselection rule if the signal quality of the target carrier is greater than the target threshold value; if the signal quality of the target carrier is not greater than the target threshold value, determine the first cell reselection rule and / or the second cell reselection rule as the target cell reselection rule.

[0110] In an embodiment of the present application, the first cell reselection rule is to perform cell reselection based on any co-frequency or hetero-frequency carrier between the first cell and the second cell.

[0111] In an embodiment of the present application, the target cell reselection rule includes the first cell reselection rule, the first cell includes a first carrier, the first carrier is any inter-frequency carrier of the first cell relative to the second cell, the second cell includes a second carrier, and the second carrier is an inter-frequency carrier of the second cell relative to the first cell and having the same priority as the first carrier;

[0112] The reselection module 202 is configured to: if the priority of the second cell is the same as that of the first cell, not start measurement when the signal quality of the first carrier in the first cell is greater than a first threshold value; otherwise, measure the signal quality of the second carrier in the second cell; sort the signal quality of the first carrier in the first cell and the signal quality of the second carrier in the second cell by R criterion, and if the signal quality of the second carrier in the second cell is greater than the signal quality of the first carrier in the first cell, reselect the cell to the second cell.

[0113] In an embodiment of the present application, the target cell reselection rule includes the first cell reselection rule, the second cell includes a second carrier, and the second carrier is any different frequency carrier of the second cell relative to the first cell;

[0114] The reselection module 202 is used to periodically measure the signal quality of the second carrier in the second cell if the priority of the second cell is higher than that of the first cell; if the signal quality of the second carrier in the second cell is greater than a second threshold value and lasts for more than a first duration, and the terminal stays in the first cell for more than a second duration, the cell is reselected to the second cell.

[0115] In an embodiment of the present application, the target cell reselection rule includes the first cell reselection rule, the first cell includes a first carrier, the first carrier is any inter-frequency carrier of the first cell relative to the second cell, the second cell includes a second carrier, and the second carrier is an inter-frequency carrier of the second cell relative to the first cell and having the same priority as the first carrier;

[0116] The reselection module 202 is configured to: if the priority of the second cell is lower than that of the first cell, not start measurement when the signal quality of the first carrier in the first cell is greater than a first threshold value, otherwise measure the signal quality of the second carrier in the second cell; if the signal quality of the first carrier in the first cell is less than a third threshold value, the signal quality of the second carrier in the second cell is greater than a fourth threshold value and the duration exceeds a first duration, and the duration for which the terminal resides in the first cell exceeds a second duration, the cell is reselected to the second cell.

[0117] In an embodiment of the present application, the target cell reselection rule includes the first cell reselection rule, the first cell includes a third carrier, the second cell includes a fourth carrier, and the third carrier and the fourth carrier are co-frequency carriers;

[0118] The reselection module 202 is configured to not start measurement if the signal quality of the third carrier in the first cell is greater than a fifth threshold value, and otherwise measure the signal quality of the fourth carrier in the second cell; sort the signal quality of the third carrier in the first cell and the signal quality of the fourth carrier in the second cell by using an R criterion, and if the signal quality of the fourth carrier in the second cell is greater than the signal quality of the third carrier in the first cell, reselect the cell to the second cell.

[0119] In an embodiment of the present application, the second cell reselection rule is to perform cell reselection based on all same-frequency or all different-frequency carriers of the first cell and the third cell.

[0120] In an embodiment of the present application, the target cell reselection rule includes the second cell reselection rule, and the reselection module 202 is used for, if the priority of the third cell is the same as the priority of the first cell, not starting measurement when the signal quality of each carrier of the first cell with respect to the third cell at the same frequency is greater than a sixth threshold value, otherwise measuring the signal quality of each carrier of the third cell with respect to the first cell at the same frequency; not starting measurement when the signal quality of each carrier of the first cell with respect to the third cell at a different frequency is greater than the sixth threshold value, otherwise measuring the signal quality of the third cell with respect to each carrier of a different frequency from the first cell; performing R criterion sorting on the signal quality of each carrier of the same frequency between the third cell and the first cell; performing R criterion sorting on the signal quality of the carriers with the same priority among the carriers of the third cell with respect to each carrier of a different frequency from the first cell and each carrier of a different frequency from the first cell relative to the third cell; if the signal quality of carriers of not less than a target number in the third cell is greater than the signal quality of the corresponding carrier in the third cell, the cell is reselected to the third cell.

[0121] In one embodiment of the present application, the target cell reselection rule includes the second cell reselection rule, and the reselection module 202 is used to periodically measure the signal quality of each carrier of the third cell if the priority of the third cell is higher than that of the first cell; if the signal quality of any carrier of the third cell is greater than a seventh threshold value and lasts for more than a first duration, and the terminal stays in the first cell for more than a second duration, the cell is reselected to the third cell.

[0122] In one embodiment of the present application, the target cell reselection rule includes the second cell reselection rule, and the reselection module 202 is used to start measuring the signal quality of each carrier of the third cell with respect to the first cell if the priority of the third cell is lower than the priority of the first cell, when the signal quality of each carrier of the first cell with respect to the third cell with respect to the same frequency is less than a sixth threshold value; start measuring the signal quality of each carrier of the third cell with respect to the first cell with respect to the different frequency when the signal quality of each carrier of the first cell with respect to the third cell with respect to the different frequency is less than the sixth threshold value; if the signal quality of each carrier of the first cell with respect to the third cell with respect to the different frequency is less than an eighth threshold value, the signal quality of each carrier of the third cell with respect to the different frequency is greater than a ninth threshold value, and the duration exceeds the first duration, and the duration for which the terminal resides in the first cell exceeds the second duration, the cell is reselected to the third cell.

[0123] In one embodiment of the present application, the reselection module 202 is further used to obtain system information of the first cell; wherein the system information includes reselection configuration parameters corresponding to the first cell reselection rule and the second cell reselection rule, and the reselection configuration parameters corresponding to different cell reselection rules include at least one of the following: cell priority, relevant threshold value, R criterion related parameters; the reselection configuration parameters corresponding to the target cell reselection rule are read from the system information to configure the target cell reselection rule.

[0124] Figure 4 A schematic diagram of a terminal structure provided in an embodiment of the present application Figure 2 .like Figure 4 As shown, the terminal includes: a processor 301, a memory 302 and a communication bus 303;

[0125] The communication bus 303 is used to realize the communication connection between the processor 301 and the memory 302;

[0126] The processor 301 is configured to execute one or more computer programs stored in the memory 302 to implement a cell reselection method.

[0127] The embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, and the computer program implements a cell reselection method when executed by a processor. The computer-readable storage medium can be a volatile memory (volatile memory), such as a random access memory (Random-Access Memory, RAM); or a non-volatile memory (non-volatile memory), such as a read-only memory (Read-Only Memory, ROM), a flash memory (flash memory), a hard disk (Hard Disk Drive, HDD) or a solid-state drive (Solid-State Drive, SSD); or it can be a respective device including one or any combination of the above memories, such as a mobile phone, a computer, a tablet device, a personal digital assistant, etc.

[0128] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of hardware embodiments, software embodiments, or embodiments in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0129] The present application is described with reference to implementation flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the process in the flowchart. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0130] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which is implemented in the implementation flow diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0131] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operation steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for executing the steps in the flowchart. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0132] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the utility application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A cell reselection method, characterized in that: Applied to a terminal, the terminal camps on a first cell through cell selection, the first cell includes multiple carriers, and the method includes: Determine, based on the signal quality of the target carrier in the first cell, a target cell reselection rule from a first cell reselection rule and a second cell reselection rule; wherein the first cell reselection rule is a cell reselection rule set for a second cell that shares a baseband with the first cell, and the second cell reselection rule is a cell reselection rule set for a third cell that does not share a baseband with the first cell, and the second cell and the third cell are neighboring cells of the first cell and each include multiple carriers; Perform cell reselection according to the target cell reselection rule.

2. The method according to claim 1, characterized in that The determining, based on the signal quality of the target carrier among the multiple carriers, the target cell reselection rule from the first cell reselection rule and the second cell reselection rule comprises: If the signal quality of the target carrier is greater than a target threshold value, determining the first cell reselection rule as the target cell reselection rule; If the signal quality of the target carrier is not greater than the target threshold, the first cell reselection rule and / or the second cell reselection rule is determined as the target cell reselection rule.

3. The method according to claim 1, characterized in that The first cell reselection rule is to perform cell reselection based on any co-frequency or hetero-frequency carrier between the first cell and the second cell.

4. The method according to claim 3, characterized in that: The target cell reselection rule includes the first cell reselection rule, the first cell includes a first carrier, the first carrier is any inter-frequency carrier of the first cell relative to the second cell, the second cell includes a second carrier, the second carrier is an inter-frequency carrier of the second cell relative to the first cell and having the same priority as the first carrier, and performing cell reselection according to the target cell reselection rule includes: If the second cell has the same priority as the first cell, measurement is not started when the signal quality of the first carrier in the first cell is greater than a first threshold value, otherwise the signal quality of the second carrier in the second cell is measured; The signal quality of the first carrier in the first cell and the signal quality of the second carrier in the second cell are sorted according to the R criterion. If the signal quality of the second carrier in the second cell is greater than the signal quality of the first carrier in the first cell, the cell is reselected to the second cell.

5. The method according to claim 3, characterized in that: The target cell reselection rule includes the first cell reselection rule, the second cell includes a second carrier, the second carrier is any inter-frequency carrier of the second cell relative to the first cell, and performing cell reselection according to the target cell reselection rule includes: If the priority of the second cell is higher than that of the first cell, periodically measuring the signal quality of the second carrier in the second cell; If the signal quality of the second carrier in the second cell is greater than a second threshold value and lasts for longer than a first duration, and the terminal stays in the first cell for longer than a second duration, the cell is reselected to the second cell.

6. The method according to claim 3, characterized in that: The target cell reselection rule includes the first cell reselection rule, the first cell includes a first carrier, the first carrier is any inter-frequency carrier of the first cell relative to the second cell, the second cell includes a second carrier, the second carrier is an inter-frequency carrier of the second cell relative to the first cell and having the same priority as the first carrier, and performing cell reselection according to the target cell reselection rule includes: if the priority of the second cell is lower than that of the first cell, when the signal quality of the first carrier in the first cell is greater than a first threshold, measurement is not started; otherwise, the signal quality of the second carrier in the second cell is measured; If the signal quality of the first carrier in the first cell is less than a third threshold value, the signal quality of the second carrier in the second cell is greater than a fourth threshold value and the duration exceeds a first duration, and the terminal stays in the first cell for more than a second duration, the cell reselects to the second cell.

7. The method according to claim 3, characterized in that The target cell reselection rule includes the first cell reselection rule, the first cell includes a third carrier, the second cell includes a fourth carrier, the third carrier and the fourth carrier are co-frequency carriers, and performing cell reselection according to the target cell reselection rule includes: If the signal quality of the third carrier in the first cell is greater than a fifth threshold, measurement is not started; otherwise, the signal quality of the fourth carrier in the second cell is measured; The signal quality of the third carrier in the first cell and the signal quality of the fourth carrier in the second cell are sorted according to the R criterion. If the signal quality of the fourth carrier in the second cell is greater than the signal quality of the third carrier in the first cell, the cell is reselected to the second cell.

8. The method according to claim 1, characterized in that The second cell reselection rule is to perform cell reselection based on all same-frequency carriers or all different-frequency carriers of the first cell and the third cell.

9. The method according to claim 8, characterized in that The target cell reselection rule includes the second cell reselection rule, and performing cell reselection according to the target cell reselection rule includes: If the priority of the third cell is the same as the priority of the first cell, measurement is not started when the signal quality of each carrier of the first cell with respect to the co-frequency of the third cell is greater than a sixth threshold value, otherwise the signal quality of the third cell with respect to each carrier of the co-frequency of the first cell is measured; When the signal quality of each carrier of the first cell that is different in frequency from the third cell is greater than the sixth threshold, measurement is not started; otherwise, the signal quality of the third cell that is different in frequency from the first cell is measured; performing R criterion sorting on signal qualities of carriers of the same frequency between the third cell and the first cell; Sorting the signal qualities of the third cell relative to each carrier having a different frequency from the first cell and the carrier having a same priority among each carrier having a different frequency from the first cell relative to the third cell by R criterion; If the signal qualities of the carriers of not less than the target number in the third cell are greater than the signal qualities of the corresponding carriers in the third cell, the cell is reselected to the third cell.

10. The method according to claim 8, characterized in that The target cell reselection rule includes the second cell reselection rule, and performing cell reselection according to the target cell reselection rule includes: If the priority of the third cell is higher than that of the first cell, periodically measuring the signal quality of each carrier of the third cell; If the signal quality of any carrier of the third cell is greater than a seventh threshold value and lasts for longer than a first duration, and the terminal stays in the first cell for longer than a second duration, the cell is reselected to the third cell.

11. The method according to claim 8, characterized in that The target cell reselection rule includes the second cell reselection rule, and performing cell reselection according to the target cell reselection rule includes: If the priority of the third cell is lower than the priority of the first cell, when the signal quality of each carrier of the first cell with respect to the co-frequency of the third cell is less than a sixth threshold value, start measuring the signal quality of each carrier of the third cell with respect to the co-frequency of the first cell; When the signal quality of each carrier of the first cell that is different in frequency from the third cell is less than the sixth threshold, start measuring the signal quality of each carrier of the third cell that is different in frequency from the first cell; If the signal quality of each carrier of the first cell is less than the eighth threshold value, the signal quality of each carrier of the third cell is greater than the ninth threshold value, and the duration exceeds the first duration, and the duration that the terminal stays in the first cell exceeds the second duration, the cell is reselected to the third cell.

12. The method according to claim 1, characterized in that Before performing cell reselection according to the target cell reselection rule, the method further includes: Acquire system information of the first cell; wherein the system information includes reselection configuration parameters corresponding to the first cell reselection rule and the second cell reselection rule, respectively, and the reselection configuration parameters corresponding to different cell reselection rules respectively include at least one of the following: cell priority, relevant threshold value, and R criterion related parameter; The reselection configuration parameter corresponding to the target cell reselection rule is read from the system information to configure the target cell reselection rule.

13. A terminal, characterized in that: The terminal resides in a first cell through cell selection, the first cell includes multiple carriers, and the terminal includes: A selection module is configured to determine a target cell reselection rule from a first cell reselection rule and a second cell reselection rule based on a signal quality of a target carrier in the first cell; wherein the first cell reselection rule is a cell reselection rule set for a second cell sharing a baseband with the first cell, and the second cell reselection rule is a cell reselection rule set for a third cell that does not share a baseband with the first cell, and the second cell and the third cell are neighboring cells of the first cell and each include multiple carriers; The reselection module is used to perform cell reselection according to the target cell reselection rule.

14. A terminal, characterized in that: include: processor, memory, and communications bus; The communication bus is used to realize the communication connection between the processor and the memory; The processor is used to execute one or more computer programs stored in the memory to implement the cell reselection method according to any one of claims 1 to 12.

15. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the cell reselection method according to any one of claims 1 to 12 is implemented.

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