Cell reselection method and system, electronic equipment and chip
By using PDCCH and PDSCH to receive information in terminal devices to assist cell reselecting, the problem of inaccurate and timely reselecting of cell in the prior art is solved, and the signal quality optimization reselecting of terminal devices in complex network environments is realized.
Patent Information
- Application Number
- CN202510167752.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2025-05-09
AI Technical Summary
When the existing cell reselection method is unreasonable in the network settings, the terminal device cannot accurately and promptly receive paging signaling, and cannot effectively reselect the same frequency or equal priority neighborhood with better signal quality.
Determining whether cell reselection needs to be triggered through the target reception information of the physical downlink control channel PDCCH and/or the physical downlink shared channel PDSCH received by the terminal device in the current serving cell. The specific steps include: measuring the neighborhood signal quality, determining the target cell according to the preset reselection criteria, and reselecting the terminal device from the current serving cell to the target cell.
In a complex real network environment, the terminal device can timely reselect the same frequency/equal priority neighbors with better signal quality. When there is no equal priority neighbor, it will automatically reselect the low priority neighbors to ensure that the terminal device always reselects the cell with better signal quality and avoid the inability to receive paging signaling.
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Figure CN119967525A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of communication control technology, and in particular to a cell reselection method, system, electronic device and chip. Background Art
[0002] A UE (terminal equipment) in an idle or inactive state needs to monitor the signal quality of the current serving cell and neighboring cells in order to select a cell with better signal quality. This process is also called the cell reselection process.
[0003] However, existing cell reselection methods generally have the following problems: (1) If the UE needs to select a low-priority neighboring cell, it must meet the following conditions: the serving cell Squal (a parameter representing the signal quality) < (preset reselection threshold value set in existing specifications), but if the network If the setting is too low, the UE will not be able to reselect a lower priority neighboring cell with better signal quality. Improper settings may result in the UE being unable to accurately and timely receive paging signals while staying in the serving cell; (2) If the UE needs to select a neighboring cell with the same frequency or the same priority, it must be sorted according to R, which often results in the UE being unable to reselect a neighboring cell with the same frequency or the same priority but with better signal quality. Summary of the invention
[0004] The technical problem to be solved by the present disclosure is to overcome the above-mentioned defects in the prior art and to provide a cell reselection method, system, electronic device and chip.
[0005] The present invention solves the above technical problems through the following technical solutions:
[0006] In a first aspect of the present disclosure, a cell reselection method is provided, the cell reselection method comprising:
[0007] In response to the terminal device residing in the current serving cell and the signal quality in the current serving cell meeting the preset cell reselection measurement condition, starting to measure the signal quality of each neighboring cell and obtaining the corresponding neighboring cell signal measurement result;
[0008] In response to the target reception information in the current serving cell satisfying a preset trigger condition, determining to trigger cell reselection; wherein the target reception information is obtained based on a physical downlink control channel PDCCH and / or a physical downlink shared channel PDSCH;
[0009] Based on the neighboring cell signal measurement result and the matching preset reselection criterion, a target cell is determined and the terminal device is reselected from the current serving cell to reside in the target cell.
[0010] Optionally, in response to the target reception information in the current serving cell satisfying a preset trigger condition, determining to trigger cell reselection comprises:
[0011] In response to a block error rate of a paging message and / or a SIB (system information block) message received in the current serving cell exceeding a preset reselection threshold, determining to trigger cell reselection;
[0012] And / or, in response to the paging message and / or the number of times the same SIB message is successfully parsed in the current serving cell exceeding a first preset value, determining to trigger cell reselection.
[0013] Optionally, after the step of determining to trigger cell reselection in response to the target reception information in the current serving cell satisfying a preset trigger condition, the method further comprises:
[0014] The current serving cell is marked as a bad cell.
[0015] Optionally, the step of determining a target cell based on the neighboring cell signal measurement result and a matching preset reselection criterion and reselecting the terminal device from the current serving cell to reside in the target cell includes:
[0016] When the current serving cell is a bad cell, in response to the neighboring cell signal measurement result indicating that there are a plurality of first neighboring cells at the same current frequency priority as the frequency point where the current serving cell is located, sorting the plurality of neighboring cells by using an R criterion to obtain the first neighboring cell with the highest sorting;
[0017] In response to the first neighboring cell with the highest ranking satisfying the S criterion, determining the first neighboring cell with the highest ranking as the target cell, and reselecting the terminal device from the current serving cell to reside in the target cell;
[0018] Or, for the current serving cell which is not a bad cell, in response to the neighboring cell signal measurement result indicating that there are a plurality of first neighboring cells at the same current frequency priority as the frequency point where the current serving cell is located, the plurality of neighboring cells and the current serving cell are sorted using the R criterion to obtain a second neighboring cell with the highest sorting;
[0019] In response to the second neighboring cell with the highest ranking satisfying the S criterion, the second neighboring cell with the highest ranking is determined to be the target cell, and the terminal device is reselected from the current serving cell to reside in the target cell.
[0020] Optionally, after the step of reselecting the terminal device from the current serving cell to camp on the target cell, the method further includes:
[0021] Control to prohibit reselection to the current serving cell where the cell was previously stationed within a preset period of time.
[0022] Optionally, the step of determining a target cell based on the neighboring cell signal measurement result and a matching preset reselection criterion and reselecting the terminal device from the current serving cell to reside in the target cell includes:
[0023] In response to the neighboring cell signal measurement result indicating that there is no first neighboring cell at the same current frequency priority as the frequency point where the current serving cell is located, and there are several fourth neighboring cells at the first frequency priority; wherein the first frequency priority is lower than the current frequency priority;
[0024] In response to the current serving cell being marked as a bad cell and the presence of a third neighboring cell whose signal quality satisfies a second preset value within a preset cell reselection trigger time, the fourth neighboring cell is taken as the target cell, and the terminal device is reselected from the current serving cell to reside in the target cell.
[0025] Optionally, the step of determining a target cell based on the neighboring cell signal measurement result and a matching preset reselection criterion and reselecting the terminal device from the current serving cell to reside in the target cell includes:
[0026] In response to the neighboring cell signal measurement result indicating that there is no first neighboring cell at the same current frequency priority as the frequency point where the current serving cell is located, and there are no fourth neighboring cells at the first frequency priority; wherein the first frequency priority is lower than the current frequency priority;
[0027] In response to the frequency order of the frequency point of the current service cell in the fourth neighboring cell satisfying the third preset value, and the fourth neighboring cell satisfying the S criterion, the fourth neighboring cell is determined to be the target cell, and the terminal device is reselected from the current service cell to reside in the target cell.
[0028] Optionally, before the step of the terminal device camping on the current serving cell, the method further includes:
[0029] In response to the frequency priority of the original cell where the terminal device resides being lower than the frequency priority of the current serving cell, the terminal device is reselected from the original cell to reside in the current serving cell.
[0030] In a second aspect of the present disclosure, a cell reselection system is provided, the cell reselection system comprising:
[0031] A signal measurement module, configured to start measuring the signal quality of each neighboring cell and obtain a corresponding neighboring cell signal measurement result in response to the terminal device residing in the current serving cell and the signal quality in the current serving cell meeting a preset cell reselection measurement condition;
[0032] A reselection trigger module, configured to determine a trigger to perform cell reselection in response to the target reception information in the current serving cell satisfying a preset trigger condition; wherein the target reception information is obtained based on a physical downlink control channel PDCCH and / or a physical downlink shared channel PDSCH;
[0033] The cell reselection determination module is used to determine the target cell based on the neighboring cell signal measurement result and the matching preset reselection criteria, and reselect the terminal device from the current serving cell to reside in the target cell.
[0034] According to a third aspect of the present disclosure, a chip is provided, the chip comprising at least one processor, the processor being configured to execute program instructions to perform the cell reselection method as described above.
[0035] According to a fourth aspect of the present disclosure, a chip module is provided, wherein the chip module comprises at least one processor, and the processor is used to execute program instructions to perform the cell reselection method as described above.
[0036] In a fifth aspect of the present disclosure, an electronic device is provided, comprising a memory, a processor, and a computer program stored in the memory and used to run on the processor, wherein the processor implements the above-mentioned cell reselection method when executing the computer program.
[0037] In a sixth aspect of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the above-mentioned cell reselection method is implemented.
[0038] In a seventh aspect of the present disclosure, a computer program product is provided, including a computer program, wherein when the computer program is executed by a processor, the cell reselection method as described above is implemented.
[0039] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present disclosure.
[0040] The positive and progressive effects of this disclosure are:
[0041] In the present disclosure, through the specific situation that the target reception information (including paging messages, SIB messages, etc.) received by the terminal device UE in the current service cell using the physical downlink control channel PDCCH and / or the physical downlink shared channel PDSCH meets, it is assisted to determine whether it is necessary to trigger cell reselection, that is, considering the signal quality of the current service cell, so that in a complex real network environment, when the UE performs equal priority frequency neighboring cell reselection, it can timely reselect to the same frequency / equal priority neighboring cell with better signal quality; when there is no equal priority neighboring cell, it can automatically reselect to a low priority neighboring cell, that is, the terminal device can always reselect to a cell with better signal quality, thereby avoiding the situation in the existing cell reselection scheme that easily causes the terminal device UE to reside in a certain service cell and cannot accurately and timely receive paging signaling, etc., effectively optimizing the existing cell reselection scheme, ensuring that the terminal device UE accurately, flexibly and reliably reselects to the target cell to achieve accurate and timely reception of paging signaling, etc., and improving the overall signal quality in the terminal device UE to meet the usage scenarios with higher communication requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0042] Figure 1 is a flowchart of the cell reselection method in Embodiment 1 of the present disclosure;
[0043] Figure 2 is a first flow chart of the cell reselection method in Embodiment 2 of the present disclosure;
[0044] Figure 3 is a second flow chart of the cell reselection method in Embodiment 2 of the present disclosure;
[0045] Figure 4 is a third flow chart of the cell reselection method in Embodiment 2 of the present disclosure;
[0046] Figure 5 This is a fourth flow chart of the cell reselection method in Embodiment 2 of the present disclosure;
[0047] Figure 6 is a fifth flow chart of the cell reselection method in Embodiment 2 of the present disclosure;
[0048] Figure 7 is a sixth flow chart of the cell reselection method in Embodiment 2 of the present disclosure;
[0049] Figure 8 It is a module schematic diagram of the cell reselection system in Embodiment 3 of the present disclosure;
[0050] Fig. 9 It is a module schematic diagram of the cell reselection system in Embodiment 4 of the present disclosure;
[0051] Fig.10It is a schematic diagram of the structure of the electronic device in Embodiment 7 of the present disclosure. DETAILED DESCRIPTION
[0052] The present disclosure is further described below by way of examples, but the present disclosure is not limited to the scope of the examples.
[0053] Prefixes such as "first" and "second" are used in the embodiments of the present disclosure only to distinguish different description objects, and have no limiting effect on the position, order, priority, quantity or content of the described objects. The use of prefixes such as ordinal numbers to distinguish description objects in the embodiments of the present disclosure does not constitute a limitation on the described objects. For the statement of the described objects, please refer to the description in the context of the claims or embodiments, and no unnecessary limitation should be constituted due to the use of such prefixes. In addition, in the description of the present embodiment, unless otherwise specified, the meaning of "plurality" is two or more.
[0054] According to the existing protocol specifications, after the UE successfully resides, it needs to continue to measure the signal quality of the cell. In addition, it needs to determine whether to start the neighboring cell measurement based on the conditions. For low-priority frequency neighboring cells, the UE measures the neighboring cells after meeting the measurement start conditions. If the UE resides in the current serving cell for more than 1 second, if the serving cell , and the low priority neighbor is Satisfaction within time , then the UE should retry to the neighboring cell with low priority frequency. However, in the real network environment, due to the complex network environment and network settings, It is not necessarily universal. If the threshold is set too low, when the UE resides in a cell with a high priority frequency, the RSRQ (reference signal reception quality) is poor but does not meet the requirement. This will cause the UE to be unable to reselect to a neighboring cell with a low priority frequency where RSRP (reference signal received power) and RSRQ are more suitable, and it can only continue to stay in the high priority frequency cell, which may easily lead to lost paging or failure to initiate services.
[0055] It can be seen that the existing cell reselection methods generally have the following problems: (1) If the UE needs to select a low-priority neighboring cell, it must meet the following conditions: , but if the network If the setting is too low, the UE will not be able to reselect a lower priority neighboring cell with better signal quality. Improper settings may result in the UE being unable to accurately and timely receive paging signals while staying in the serving cell; (2) If the UE needs to select a neighboring cell with the same frequency or the same priority, it must be sorted according to R, which often results in the UE being unable to reselect a neighboring cell with the same frequency or the same priority but with better signal quality.
[0056] In order to solve the problems existing in the above-mentioned cell reselection scheme, the present disclosure proposes a novel cell reselection scheme, which implements a new decision mechanism to further determine the signal quality of the current serving cell when the UE executes the cell reselection process, thereby optimizing the UE cell reselection rules, solving the scenario in which the UE may reside in an inappropriate cell in the existing network, and ensuring that the UE can receive paging and system messages in a timely and accurate manner. Specifically:
[0057] Example 1
[0058] like Figure 1 As shown, the cell reselection method of this embodiment includes:
[0059] S101, in response to the terminal device residing in the current serving cell and the signal quality in the current serving cell meeting the preset cell reselection measurement condition, starting to measure the signal quality of each neighboring cell and obtaining the corresponding neighboring cell signal measurement result;
[0060] S102. In response to the target reception information in the current serving cell satisfying the preset trigger condition, determine to trigger cell reselection; at this time, it indicates that the signal quality of the current serving cell is poor, and cell reselection needs to be initiated to keep the terminal device in other cells with better signal quality.
[0061] The target reception information is obtained based on the reception of a physical downlink control channel PDCCH and / or a physical downlink shared channel PDSCH;
[0062] Specifically, the target received information includes paging messages, SIB messages, etc.; of course, it is not limited to paging messages and SIB messages, and parameters of other dimensions can also be used as conditions for determining whether the current serving cell needs to trigger a cell reselection operation. I will not go into details here, as long as it can be achieved.
[0063] S103: Based on the neighboring cell signal measurement result and the matching preset reselection criteria, determine the target cell and reselect the terminal device from the current serving cell to reside in the target cell.
[0064] In this solution, the specific situation that the target reception information (including paging messages, SIB messages, etc.) received by the terminal device UE in the current serving cell using the physical downlink control channel PDCCH and / or the physical downlink shared channel PDSCH is met is used to assist in determining whether it is necessary to trigger cell reselection, that is, considering the signal quality of the current serving cell, so that in a complex real network environment, when the UE performs equal priority frequency neighboring cell reselection, it can timely reselect to the same frequency / equal priority neighboring cell with better signal quality; when there is no equal priority neighboring cell, it can automatically reselect to a low priority neighboring cell, that is, the terminal device can always reselect to a cell with better signal quality, thereby avoiding the situation in the existing cell reselection scheme that the terminal device UE is easily caused to reside in a certain serving cell and cannot accurately and timely receive paging signaling, etc., effectively optimizing the existing cell reselection scheme, ensuring that the terminal device UE accurately, flexibly and reliably reselects to the target cell to achieve accurate and timely reception of paging signaling, etc., and improving the overall signal quality in the terminal device UE to meet the usage scenarios with higher communication requirements.
[0065] Example 2
[0066] The cell reselection method of this embodiment is a further improvement on Embodiment 1. Specifically:
[0067] In one feasible solution, Figure 2 As shown, step S102 includes:
[0068] S1021. In response to a block error rate of a paging message and / or SIB message received in a current serving cell exceeding a preset reselection threshold, determining to trigger cell reselection;
[0069] The block error rate is BER, and the preset reselection threshold is the Thresh agreed in the existing protocol. Serving, LowQ , the preset reselection threshold is a pre-defined threshold.
[0070] And / or, in response to successfully parsing a paging message and / or parsing a same SIB message for a number of times exceeding a first preset value in a current serving cell, determining to trigger cell reselection.
[0071] In this scheme, we consider Not universal, no longer based on As a constraint condition for cell reselection, it is to determine whether the block error rate (BER) of paging messages, SIB messages, etc. received by the terminal device UE in the current serving cell using the physical downlink control channel PDCCH and / or the physical downlink shared channel PDSCH exceeds the preset reselection threshold value. , to determine that the current serving cell is a bad cell when it exceeds; and, when the terminal device UE cannot successfully parse the paging message or the same SIB information at one time, and the paging information and the SIB information are transmitted repeatedly, if the terminal device UE needs multiple times (such as 3 times) to successfully parse the paging message or the same SIB information, then the current serving cell is determined to be a bad cell; when the current serving cell is a bad cell, it is necessary to trigger cell reselection, which ensures the accuracy and timeliness of cell reselection, that is, it is no longer based on As a constraint condition for cell reselection, it avoids the situation where the terminal device UE stays in a certain service cell and cannot accurately and timely receive paging signaling under the determined mode, effectively optimizes the existing cell reselection scheme, and ensures the quality and efficiency of cell reselection.
[0072] In an implementable solution, after step S1021, the following steps are included:
[0073] Mark the current serving cell as a bad cell.
[0074] On the contrary, if the conditions involved in step S1021 are not met, it means that the current serving cell is not a bad cell and does not need to be marked.
[0075] In this solution, when the terminal device is in the current service cell and is determined to trigger cell reselection, it means that the signal quality of the current service cell is poor, and the terminal device needs to be reselected to other cells with better signals. That is, the current service cell no longer belongs to the category of subsequent reselected cells. By marking it as a bad cell, it is automatically excluded in the subsequent target cell determination process to ensure the efficiency and accuracy of target cell determination.
[0076] In one feasible solution, Figure 3 As shown, step S103 includes:
[0077] S10311. If the current serving cell is a bad cell, in response to the neighboring cell signal measurement result indicating that there are a number of first neighboring cells at the same current frequency priority as the frequency point where the current serving cell is located, sort the number of neighboring cells using the R criterion to obtain the first neighboring cell with the highest sorting;
[0078] S10312. In response to the first neighboring cell with the highest ranking satisfying the S criterion, determine the first neighboring cell with the highest ranking as the target cell, and reselect the terminal device from the current serving cell to reside in the target cell.
[0079] or, as Figure 4 As shown, step S103 includes:
[0080] S10321. For a current serving cell that is not a bad cell, in response to the neighboring cell signal measurement result indicating that there are a number of first neighboring cells at the same current frequency priority as the frequency point where the current serving cell is located, the number of neighboring cells and the current serving cell are sorted using the R criterion to obtain the second neighboring cell with the highest sorting;
[0081] S10322. In response to the second neighboring cell with the highest ranking satisfying the S criterion, determine the second neighboring cell with the highest ranking as the target cell, and reselect the terminal device from the current serving cell to reside in the target cell.
[0082] In this solution, when the terminal device UE performs equal priority frequency neighbor cell reselection, the BER of the terminal device UE when receiving SIB messages or paging messages through the PDCCH and / or PDSCH channels in the current service cell exceeds the custom preset reselection threshold, and when there are other neighbor cells at the same current frequency priority as the frequency point where the current service cell is located, the terminal device UE excludes the cell at the frequency point where the current service cell is located, and adjusts the frequency priority of the current service cell to the lowest priority, so that the terminal device UE can reselect the equal priority neighbor cell with better signal quality, thereby avoiding the situation in the existing solution that the terminal device UE must meet the R sorting in order to select the same frequency or equal priority neighbor cell, without considering the signal quality of the current service cell, resulting in the UE being unable to reselect the same frequency / equal priority neighbor cell with better signal quality.
[0083] In an implementable solution, after the step of reselecting the terminal device from the current serving cell to camp on the target cell, the method further includes:
[0084] Control prohibiting reselection to the current serving cell where the cell was previously stationed within a preset period of time.
[0085] In this solution, the terminal device UE can be prohibited from reselecting to the original frequency or original cell for a period of time to avoid reselecting to the original cell with poor signal quality in a short period of time, further optimizing the cell reselection process and ensuring the reliability of the target cell after reselection.
[0086] In addition, the duration range of the prohibited preset time period can be determined based on actual experience, and of course can be re-determined or adjusted based on actual conditions to better and more flexibly meet different actual scenarios and ensure the optimized quality of cell reselection.
[0087] In one feasible solution, Figure 5 As shown, step S103 includes:
[0088] S10331. In response to the neighboring cell signal measurement result indicating that there is no first neighboring cell at the same current frequency priority as the frequency point where the current serving cell is located, and there are several third neighboring cells at the first frequency priority; wherein the first frequency priority is lower than the current frequency priority;
[0089] S10332. In response to the current serving cell being marked as a bad cell and the presence of a third neighboring cell whose signal quality satisfies a second preset value within a preset cell reselection trigger time, the third neighboring cell is selected as a target cell, and the terminal device is reselected from the current serving cell to reside in the target cell.
[0090] In this solution, there is no neighboring cell with the same priority in the current serving cell, but there is a neighboring cell with a lower priority, and the neighboring cell with a lower priority is triggered at the preset cell reselection time. Satisfaction within time , and the current serving cell is marked as a bad cell, then the low-priority neighboring cell that meets the conditions is determined to be the selected target cell, and the terminal device is reselected from the current serving cell to reside in the target cell; that is, when there is no neighboring cell with the same priority, it can automatically reselect to the low-priority neighboring cell, that is, the terminal device can always reselect to a cell with better signal quality, thereby avoiding the situation in the existing cell reselection scheme that easily causes the terminal device UE to reside in a certain serving cell and cannot accurately and timely receive paging signaling, etc., effectively optimizing the existing cell reselection scheme, ensuring that the terminal device UE accurately, flexibly and reliably reselects to the target cell to achieve accurate and timely reception of paging signaling, etc., and improving the overall signal quality of the terminal device UE.
[0091] In one feasible solution, Figure 6 As shown, step S103 includes:
[0092] S10341. In response to the neighboring cell signal measurement result indicating that there is no first neighboring cell at the same current frequency priority as the frequency point where the current serving cell is located, and there are no third neighboring cells at the first frequency priority; wherein the first frequency priority is lower than the current frequency priority;
[0093] S10342. In response to the frequency order of the frequency point of the current serving cell in the fourth neighboring cell satisfying the third preset value, and the fourth neighboring cell satisfying the S criterion, determine that the fourth neighboring cell is the target cell, and reselect the terminal device from the current serving cell to reside in the target cell.
[0094] Preferably, the neighboring cell corresponding to the second frequency point ranking of the frequency point where the current serving cell is located in a certain neighboring cell is used as the cell to be determined. Once the cell to be determined meets the S criterion, it is used as the target cell.
[0095] In this scheme, when there are no neighboring cells of equal priority and low priority cells, the neighboring cells whose frequency point of the current service cell is ranked higher (such as the second) in a certain neighboring cell are considered. As long as it meets the S criterion, the target cell can be determined for the terminal device to reselect and reside, so that the terminal device can reselect to a cell with better signal quality as much as possible, and avoid the situation in the existing cell reselection scheme that easily causes the terminal device UE to reside in a certain service cell and cannot accurately and timely receive paging signaling.
[0096] In an implementable solution, before the step of the terminal device camping on the current serving cell, the method further includes:
[0097] In response to the frequency priority of the original cell where the terminal device resides being lower than the frequency priority of the current serving cell, the terminal device is reselected from the original cell to reside in the current serving cell.
[0098] In this solution, if the terminal device resides in a cell with frequency priority, the terminal device UE will first reselect to a high-priority cell according to the cell reselection rules of the high-priority frequency neighboring cell defined in the current specification; when the terminal device is in a high-priority cell, but the signal quality of the current serving cell is poor (such as a low RSRQ), it is determined whether the preset cell reselection measurement conditions specified in the existing protocol are met. If so, it is determined to start the signal quality measurement of the neighboring cell; otherwise, it is determined not to start the signal quality measurement of the neighboring cell.
[0099] The implementation principle of the cell reselection method of this embodiment is explained below with reference to specific examples:
[0100] In the current real network environment, there are only two cells ( and ) as an example, the terminal device UE currently resides in ;
[0101] Among them, the frequency priority corresponding to Cell1 is: medium, medium; The corresponding frequency priority is high, RSRP2 is high (the calculated Srxlev is higher than the threshold ), RSRQ2 is poor; but Cell2 The threshold value is set too low, Cell2 does not meet the ;
[0102] According to existing specifications, the terminal device UE performs the following operations in this scenario:
[0103] (11) After the terminal equipment UE resides in Cell1, it will unconditionally start measuring the high-priority neighboring cell Cell2;
[0104] (12) If the terminal device UE resides in the current Cell1 for more than 1 second, and due to the high priority frequency neighboring Cell2 Satisfaction within time , the terminal device UE reselects to the high-priority frequency neighboring cell Cell2 according to the existing specifications;
[0105] (13) The terminal device UE reselects to the high-priority frequency neighboring cell Cell2, but the RSRQ of Cell2 is very poor. Therefore, this reselection will result in the terminal device UE not being able to obtain good service quality in Cell2. In addition, due to the The threshold is set too low, resulting in the terminal device UE in Cell2 having a very poor RSRQ but still unable to meet It is impossible to reselect Cell 1 which has good RSRP and RSRQ.
[0106] That is to say, according to the existing regulations, if the current serving cell , and the low priority neighbor is Satisfaction within time , then the terminal sets the UE to reselect to the neighboring cell with a low priority frequency, but Cell2 in this example does not meet If no optimization is performed, it is impossible to reselect back to Cell1 or other low-priority neighboring cells, resulting in the situation where the terminal device UE resides in a certain service cell and cannot accurately and timely receive paging signaling.
[0107] After adopting the cell reselection solution disclosed in the present invention:
[0108] (21) After the terminal equipment UE resides in Cell1, it will unconditionally start measuring the high-priority neighboring cell Cell2;
[0109] (22) If the terminal device UE resides in the current Cell1 for more than 1 second, and due to the high priority frequency neighboring Cell2 Satisfaction within time , the terminal device UE reselects to the high-priority frequency neighboring cell Cell2 according to the existing specifications;
[0110] Among them, the RSRQ in Cell2 is relatively low, and the terminal device UE performs the following operations:
[0111] According to the current service area and , the terminal device UE may not measure the same or lower priority neighboring cells of different frequencies or systems, and needs to measure the signal quality of neighboring cells in other cases;
[0112] (23) The terminal device UE obtains the signal quality measurement results of each neighboring cell; specifically:
[0113] If there is a high-priority neighboring cell, the terminal device UE performs the following operations:
[0114] The network is configured in the SIB , and the UE stays in the current serving cell for more than 1 second, if a high priority NR or E-UTRAN RAT / frequency neighboring cell is Satisfaction within time , then the terminal device UE should reselect to the neighboring cell with high priority frequency;
[0115] The terminal device UE checks whether the BER (block error rate) of the SIB message or paging message received by the current serving cell using the PDCCH channel and / or the PDSCH channel exceeds the custom threshold value. If so, it is necessary to trigger cell reselection; or the terminal device UE cannot successfully parse the paging message or the same SIB information at one time, and the terminal device UE needs to parse the paging message or the same SIB information multiple times (such as 3 times) to successfully parse the paging message or the same SIB information, in which case it is also necessary to trigger cell reselection;
[0116] At this point, the current serving cell is identified as a bad cell, and the terminal device UE makes the following adjustments:
[0117] a) If there are neighboring cells with the same frequency priority as the frequency point of the current serving cell, the terminal device UE excludes the cell with the frequency point of the current serving cell and sorts these neighboring cells using the R criterion. If the neighboring cell with the highest ranking meets the S criterion, the neighboring cell with the highest ranking is used as the target cell, and the terminal device UE reselects to the neighboring cell with the highest ranking. At the same time, the terminal device UE may be prohibited from reselecting to the original frequency point or original cell such as Cell2 for a period of time;
[0118] b) If there is no neighboring cell with the same frequency priority, but there is a neighboring cell with a lower priority, and the neighboring cell with the lower priority is Satisfaction within time , and if the current serving cell is marked as a bad cell, the low-priority neighboring cell is used as the target cell, and the terminal device UE is reselected to the low-priority neighboring cell;
[0119] c) If the target cell corresponding to a) and b) does not exist, and the neighboring cell with the second highest frequency point where Cell2 is located needs to meet the S criterion, then this neighboring cell will be used as the target cell, and the terminal device UE will be reselected to the neighboring cell with the second highest frequency point where Cell2 is located.
[0120] It can be seen that when the cell reselection is performed according to the above process using the present embodiment, if the terminal device UE does not find a neighboring cell with the same priority according to a), the terminal device UE will be reselected to the low-priority frequency neighboring cell Cell1 according to the preset reselection rules, so that the terminal device can timely and automatically reselect back to Cell1 or other low-priority neighboring cells, so as to effectively avoid the situation where the terminal device UE resides in a certain service cell and cannot accurately and timely receive paging signaling.
[0121] Furthermore, combined with Figure 7 As shown, the cell reselection solution of this embodiment is described:
[0122] 1. The terminal equipment UE resides in a suitable cell;
[0123] 2. The terminal equipment UE starts to measure the high priority frequency neighboring cell or the neighboring cell of the same priority according to the current specification process;
[0124] 3. The terminal device UE starts measuring the low-priority neighboring cell according to the current specification process;
[0125] 4. The terminal device UE obtains the neighboring cell measurement result and determines whether the conditions for reselecting to the neighboring cell are met:
[0126] (4-1) The terminal device UE determines whether the conditions for reselecting to a high-priority neighboring cell are met. If so, it reselects to a high-priority neighboring cell and the process ends; otherwise, it continues with the subsequent process;
[0127] (4-2) The terminal device UE continues to check the BER when the terminal device UE receives SIB messages or paging messages through the PDCCH channel and / or PDSCH channel in the current serving cell. If the BER is relatively high and exceeds the custom threshold, the current serving cell is marked as a bad cell; or if the terminal device UE needs multiple times (such as 3 times) to successfully parse the paging message or the same SIB, the current serving cell is also marked as a bad cell;
[0128] (4-3) If there is a neighboring cell with the same frequency priority as the frequency point of the current serving cell:
[0129] If the current serving cell is not a bad cell, the terminal device UE ranks the current serving cell and these neighboring cells according to the R criterion. If the neighboring cell with the highest ranking meets the S criterion, the terminal device UE reselects to the neighboring cell with the highest ranking.
[0130] If the current serving cell is a bad cell, the terminal device UE excludes the cell at the frequency point where the current serving cell is located, and sorts these neighboring cells according to the R criterion. If the neighboring cell with the highest ranking meets the S criterion, the terminal device UE reselects to the neighboring cell with the highest ranking; at the same time, the terminal device UE may be prohibited from reselecting to the original frequency point or original cell for a period of time;
[0131] (4-4) If there is a low priority neighbor:
[0132] If the low priority neighbor is Satisfaction within time :
[0133] If the current serving cell satisfies , and the dwell time in the current serving cell exceeds one second, then reselect to a lower priority neighboring cell;
[0134] If the current serving cell is marked as a bad cell and the dwell time in the current serving cell exceeds one second, reselect to a lower priority neighboring cell;
[0135] Otherwise, continue to stay in the current service cell and the process ends;
[0136] If the low priority neighbor is Not satisfied within time , continue to stay in the current service cell, and the process ends;
[0137] (4-5) If there is no low-priority neighboring cell, the terminal device UE continues to stay in the current serving cell and the process ends.
[0138] When the terminal device UE in the present embodiment executes the cell reselection process, a new decision mechanism is used to further determine the signal quality of the current service cell, optimize the cell reselection rules of the terminal device UE, solve the scenario in which the terminal device UE in the existing network may reside in an inappropriate cell, and ensure that the terminal device UE receives paging and system messages in a timely and accurate manner.
[0139] Example 3
[0140] like Figure 8 As shown, the cell reselection system of this embodiment includes:
[0141] The signal measurement module 1 is used to start measuring the signal quality of each neighboring cell and obtain the corresponding neighboring cell signal measurement result in response to the terminal device residing in the current serving cell and the signal quality in the current serving cell meeting the preset cell reselection measurement condition;
[0142] The reselection trigger module 2 is used to determine the trigger for cell reselection in response to the target reception information in the current serving cell meeting the preset trigger condition; wherein the target reception information is obtained based on the reception of the physical downlink control channel PDCCH and / or the physical downlink shared channel PDSCH;
[0143] The cell reselection determination module 3 is used to determine the target cell based on the neighboring cell signal measurement result and the matching preset reselection criteria, and reselect the terminal device from the current serving cell to reside in the target cell.
[0144] In this solution, the specific situation that the target reception information (including paging messages, SIB messages, etc.) received by the terminal device UE in the current serving cell using the physical downlink control channel PDCCH and / or the physical downlink shared channel PDSCH is met is used to assist in determining whether it is necessary to trigger cell reselection, that is, considering the signal quality of the current serving cell, so that in a complex real network environment, when the UE performs equal priority frequency neighboring cell reselection, it can timely reselect to the same frequency / equal priority neighboring cell with better signal quality; when there is no equal priority neighboring cell, it can automatically reselect to a low priority neighboring cell, that is, the terminal device can always reselect to a cell with better signal quality, thereby avoiding the situation in the existing cell reselection scheme that the terminal device UE is easily caused to reside in a certain serving cell and cannot accurately and timely receive paging signaling, etc., effectively optimizing the existing cell reselection scheme, ensuring that the terminal device UE accurately, flexibly and reliably reselects to the target cell to achieve accurate and timely reception of paging signaling, etc., and improving the overall signal quality in the terminal device UE to meet the usage scenarios with higher communication requirements.
[0145] As for the system embodiment, since it basically corresponds to the method embodiment, the relevant parts can refer to the partial description of the method embodiment. The system embodiment described above is only illustrative, wherein the units described as separate components may or may not be physically separated, and the components as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the disclosed solution.
[0146] Example 4
[0147] like Fig. 9 As shown, the cell reselection system of this embodiment is a further improvement of Embodiment 3, specifically:
[0148] In an implementable solution, the reselection triggering module 2 is further used to determine to trigger cell reselection in response to a block error rate of a paging message and / or SIB message received in the current serving cell exceeding a preset reselection threshold value;
[0149] And / or, in response to successfully parsing a paging message and / or parsing a same SIB message for a number of times exceeding a first preset value in a current serving cell, determining to trigger cell reselection.
[0150] In an implementable solution, the cell reselection system further includes a cell marking module 4;
[0151] The cell marking module 4 is used to mark the current serving cell as a bad cell.
[0152] In an implementable solution, the cell reselection determination module 3 is used to, when the current serving cell is a bad cell, in response to the neighboring cell signal measurement result indicating that there are a number of first neighboring cells at the same current frequency priority as the frequency point where the current serving cell is located, sort the number of neighboring cells using the R criterion to obtain the first neighboring cell with the highest sorting;
[0153] In response to the first neighboring cell with the highest ranking satisfying the S criterion, determining the first neighboring cell with the highest ranking as the target cell, and reselecting the terminal device from the current serving cell to reside in the target cell;
[0154] Or, for a current serving cell that is not a bad cell, in response to a neighboring cell signal measurement result indicating that there are a number of first neighboring cells at the same current frequency priority as the frequency point where the current serving cell is located, the number of neighboring cells and the current serving cell are sorted using the R criterion to obtain a second neighboring cell with the highest sorting;
[0155] In response to the second neighboring cell with the highest ranking satisfying the S criterion, the second neighboring cell with the highest ranking is determined to be the target cell, and the terminal device is reselected from the current serving cell to reside in the target cell.
[0156] In an implementable solution, the cell reselection system further includes a control reselection module 5;
[0157] The control reselection module 5 is used to control the prohibition of reselection to the current serving cell where the last stay was within a preset period of time.
[0158] In an implementable solution, the cell reselection determination module 3 is used to respond to the neighboring cell signal measurement result indicating that there is no first neighboring cell at the same current frequency priority as the frequency point where the current serving cell is located, and there are several third neighboring cells at the first frequency priority; wherein the first frequency priority is lower than the current frequency priority;
[0159] In response to the current serving cell being marked as a bad cell and there being a third neighboring cell whose signal quality satisfies a second preset value within a preset cell reselection trigger time, the third neighboring cell is selected as the target cell, and the terminal device is reselected from the current serving cell to reside in the target cell.
[0160] In an implementable solution, in response to the neighboring cell signal measurement result indicating that there is no first neighboring cell at the same current frequency priority as the frequency point where the current serving cell is located, and there are no third neighboring cells at the first frequency priority; wherein the first frequency priority is lower than the current frequency priority;
[0161] In response to the frequency order of the frequency point of the current service cell in the fourth neighboring cell satisfying the third preset value and the fourth neighboring cell satisfying the S criterion, the fourth neighboring cell is determined to be the target cell, and the terminal device is reselected from the current service cell to reside in the target cell.
[0162] In an implementable solution, the cell reselection determination module 3 is further used to reselect the terminal device from the original cell to the current serving cell in response to the frequency priority of the original cell where the terminal device resides being lower than the frequency priority of the current serving cell.
[0163] As for the system embodiment, since it basically corresponds to the method embodiment, the relevant parts can refer to the partial description of the method embodiment. The system embodiment described above is only illustrative, wherein the units described as separate components may or may not be physically separated, and the components as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the disclosed solution.
[0164] Example 5
[0165] The chip of this embodiment includes at least one processor, and the processor is used to execute program instructions to execute the cell reselection method in the above embodiment; or execute the data processing method in the above embodiment.
[0166] The access control system described in the embodiment may specifically be a separate chip or UE (user side), or a chip module integrated into the UE. The various modules / units included in the access control system may be software modules / units, or hardware modules / units, or may be partially software modules / units and partially hardware modules / units. For example, for various devices and products applied to or integrated into the chip, the various modules / units included therein may all be implemented in the form of hardware such as circuits, or at least some of the modules / units may be implemented in the form of software programs, which run on a processor integrated inside the chip, and the remaining modules / units may be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated into the chip module, the various modules / units included therein may all be implemented in the form of hardware such as circuits, and different modules / units may be located in the same component (such as a chip, circuit module, etc.) or different components of the chip module, or at least some of the modules / units may be implemented in the form of software programs, which run on a processor integrated inside the chip, and the remaining modules / units may be implemented in the form of hardware such as circuits. The present invention relates to a method for implementing a plurality of modules / units in a terminal. The plurality of modules / units may be implemented in the form of a software program, which runs on a processor integrated in the chip module, and the remaining plurality of modules / units may be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in the UE, the various modules / units contained therein may be implemented in the form of hardware such as circuits, and different modules / units may be located in the same component (for example, a chip, a circuit module, etc.) or in different components in the terminal, or at least some of the modules / units may be implemented in the form of a software program, which runs on a processor integrated in the UE, and the remaining plurality of modules / units may be implemented in the form of hardware such as circuits.
[0167] Example 6
[0168] The chip module of this embodiment includes at least one processor, and the processor is used to execute program instructions to execute the cell reselection method in the above embodiment; or execute the data processing method in the above embodiment.
[0169] The access control system described in the embodiment may specifically be a separate chip module or UE, or a chip module integrated in the UE. The various modules / units included in the access control system may be software modules / units, or hardware modules / units, or may be partially software modules / units and partially hardware modules / units. For example, for various devices and products applied to or integrated in a chip, the various modules / units included therein may all be implemented in the form of hardware such as circuits, or at least some of the modules / units may be implemented in the form of software programs, which run on a processor integrated inside the chip, and the remaining modules / units may be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in a chip module, the various modules / units included therein may all be implemented in the form of hardware such as circuits, and different modules / units may be located in the same component (such as a chip, circuit module, etc.) or in different components of the chip module, or at least some of the modules / units may be implemented in the form of software programs, which run on a processor integrated inside the chip, and the remaining modules / units may be implemented in the form of hardware such as circuits. The present invention relates to a method for implementing a plurality of modules / units in a terminal. The plurality of modules / units may be implemented in the form of a software program, which runs on a processor integrated in the chip module, and the remaining plurality of modules / units may be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in the UE, the various modules / units contained therein may be implemented in the form of hardware such as circuits, and different modules / units may be located in the same component (for example, a chip, a circuit module, etc.) or in different components in the terminal, or at least some of the modules / units may be implemented in the form of a software program, which runs on a processor integrated in the UE, and the remaining plurality of modules / units may be implemented in the form of hardware such as circuits.
[0170] Example 7
[0171] Fig.10 This is a structural diagram of an electronic device shown in an exemplary embodiment of the present disclosure, the electronic device includes a memory, a processor, and a computer program stored in the memory and used to run on the processor, and when the processor executes the computer program, the cell reselection method described in any of the above embodiments is implemented. Fig.10 The electronic device 90 shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present disclosure.
[0172] like Fig.10As shown, the electronic device 90 may be in the form of a general-purpose computing device, for example, it may be a server device. The components of the electronic device 90 may include, but are not limited to: at least one processor 91, at least one memory 92, and a bus 93 connecting different system components (including the memory 92 and the processor 91).
[0173] The bus 93 includes a data bus, an address bus, and a control bus.
[0174] The memory 92 may include a volatile memory, such as a random access memory (RAM) 921 and / or a cache memory 922 , and may further include a read only memory (ROM) 923 .
[0175] The memory 92 may also include a program tool 925 (or utility) having a set (at least one) of program modules 924, such program modules 924 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.
[0176] The processor 91 executes various functional applications and data processing by running the computer program stored in the memory 92, such as the cell reselection method provided in any of the above embodiments.
[0177] The electronic device 90 may also communicate with one or more external devices 94 (e.g., keyboards, pointing devices, etc.). Such communication may be performed via an input / output (I / O) interface 95. Furthermore, the electronic device 90 may also communicate with one or more networks (e.g., local area networks (LANs), wide area networks (WANs), and / or public networks, such as the Internet) via a network adapter 96. As shown, the network adapter 96 communicates with other modules of the electronic device 90 via a bus 93. It should be understood that, although not shown in the figure, other hardware and / or software modules may be used in conjunction with the electronic device 90, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk array) systems, tape drives, and data backup storage systems, etc.
[0178] It should be noted that although several units / modules or sub-units / modules of the electronic device are mentioned in the above detailed description, this division is merely exemplary and not mandatory. In fact, according to the embodiments of the present disclosure, the features and functions of two or more units / modules described above can be embodied in one unit / module. Conversely, the features and functions of one unit / module described above can be further divided into multiple units / modules to be embodied.
[0179] Example 8
[0180] An embodiment of the present disclosure further provides a computer-readable storage medium having a computer program stored thereon, and when the program is executed by a processor, the cell reselection method provided in any of the above embodiments is implemented.
[0181] The readable storage medium may include but is not limited to: a portable disk, a hard disk, a random access memory, a read-only memory, an erasable programmable read-only memory, an optical storage device, a magnetic storage device or any suitable combination of the above.
[0182] Example 9
[0183] The embodiments of the present disclosure further provide a computer program product, including a computer program, which implements the cell reselection method provided in any of the above embodiments when executed by a processor.
[0184] Among them, the program code for executing the computer program product of the present disclosure can be written in any combination of one or more programming languages, and the program code can be executed completely on the user device, partially on the user device, as an independent software package, partially on the user device and partially on a remote device, or completely on the remote device.
[0185] Although the specific embodiments of the present disclosure are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present disclosure is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present disclosure, but these changes and modifications all fall within the protection scope of the present disclosure.
Claims
1. A cell reselection method, characterized in that: The cell reselection method comprises: In response to the terminal device residing in the current serving cell and the signal quality in the current serving cell meeting the preset cell reselection measurement condition, starting to measure the signal quality of each neighboring cell and obtaining the corresponding neighboring cell signal measurement result; In response to the target reception information in the current serving cell satisfying a preset trigger condition, determining to trigger cell reselection; wherein the target reception information is obtained based on a physical downlink control channel PDCCH and / or a physical downlink shared channel PDSCH; Based on the neighboring cell signal measurement result and the matching preset reselection criterion, a target cell is determined and the terminal device is reselected from the current serving cell to reside in the target cell.
2. The cell reselection method according to claim 1, wherein: The step of determining to trigger cell reselection in response to the target reception information in the current serving cell satisfying a preset trigger condition comprises: In response to a block error rate of a paging message and / or a SIB message received in the current serving cell exceeding a preset reselection threshold, determining to trigger cell reselection; And / or, in response to the paging message and / or the number of times the same SIB message is successfully parsed in the current serving cell exceeding a first preset value, determining to trigger cell reselection.
3. The cell reselection method according to claim 2, wherein: After the step of determining to trigger cell reselection in response to the target reception information in the current serving cell satisfying a preset trigger condition, the method further comprises: The current serving cell is marked as a bad cell.
4. The cell reselection method according to any one of claims 1 to 3, characterized in that: The step of determining a target cell based on the neighboring cell signal measurement result and a matched preset reselection criterion and reselecting the terminal device from the current serving cell to reside in the target cell comprises: When the current serving cell is a bad cell, in response to the neighboring cell signal measurement result indicating that there are a plurality of first neighboring cells at the same current frequency priority as the frequency point where the current serving cell is located, sorting the plurality of neighboring cells by using an R criterion to obtain the first neighboring cell with the highest sorting; In response to the first neighboring cell with the highest ranking satisfying the S criterion, determining the first neighboring cell with the highest ranking as the target cell, and reselecting the terminal device from the current serving cell to reside in the target cell; Or, for the current serving cell which is not a bad cell, in response to the neighboring cell signal measurement result indicating that there are a plurality of first neighboring cells at the same current frequency priority as the frequency point where the current serving cell is located, the plurality of neighboring cells and the current serving cell are sorted using the R criterion to obtain a second neighboring cell with the highest sorting; In response to the second neighboring cell with the highest ranking satisfying the S criterion, the second neighboring cell with the highest ranking is determined to be the target cell, and the terminal device is reselected from the current serving cell to reside in the target cell.
5. The cell reselection method according to claim 4, characterized in that: After the step of reselecting the terminal device from the current serving cell to camp on the target cell, the method further includes: Control to prohibit reselection to the current serving cell where the cell was previously resided within a preset period of time.
6. The cell reselection method according to any one of claims 1 to 3, characterized in that: The step of determining a target cell based on the neighboring cell signal measurement result and a matched preset reselection criterion and reselecting the terminal device from the current serving cell to reside in the target cell comprises: In response to the neighboring cell signal measurement result indicating that there is no first neighboring cell at the same current frequency priority as the frequency point where the current serving cell is located, and there are several fourth neighboring cells at the first frequency priority; wherein the first frequency priority is lower than the current frequency priority; In response to the current serving cell being marked as a bad cell and the presence of a third neighboring cell whose signal quality satisfies a second preset value within a preset cell reselection trigger time, the fourth neighboring cell is taken as the target cell, and the terminal device is reselected from the current serving cell to reside in the target cell.
7. The cell reselection method according to any one of claims 1 to 3, characterized in that: The step of determining a target cell based on the neighboring cell signal measurement result and a matched preset reselection criterion and reselecting the terminal device from the current serving cell to reside in the target cell comprises: In response to the neighboring cell signal measurement result indicating that there is no first neighboring cell at the same current frequency priority as the frequency point where the current serving cell is located, and there are no fourth neighboring cells at the first frequency priority; wherein the first frequency priority is lower than the current frequency priority; In response to the frequency order of the frequency point of the current service cell in the fourth neighboring cell satisfying the third preset value, and the fourth neighboring cell satisfying the S criterion, the fourth neighboring cell is determined to be the target cell, and the terminal device is reselected from the current service cell to reside in the target cell.
8. The cell reselection method according to claim 1, wherein: Before the step of the terminal equipment residing in the current serving cell, the method further includes: In response to the frequency priority of the original cell where the terminal device resides being lower than the frequency priority of the current serving cell, the terminal device is reselected from the original cell to reside in the current serving cell.
9. A cell reselection system, characterized in that: The cell reselection system comprises: A signal measurement module, configured to start measuring the signal quality of each neighboring cell and obtain a corresponding neighboring cell signal measurement result in response to the terminal device residing in the current serving cell and the signal quality in the current serving cell meeting a preset cell reselection measurement condition; A reselection trigger module, configured to determine a trigger to perform cell reselection in response to the target reception information in the current serving cell satisfying a preset trigger condition; wherein the target reception information is obtained based on a physical downlink control channel PDCCH and / or a physical downlink shared channel PDSCH; The cell reselection determination module is used to determine the target cell based on the neighboring cell signal measurement result and the matching preset reselection criteria, and reselect the terminal device from the current serving cell to reside in the target cell.
10. A chip, characterized in that: The chip includes at least one processor, and the processor is used to execute program instructions to perform the cell reselection method according to any one of claims 1 to 8.
11. An electronic device comprising a memory, a processor, and a computer program stored in the memory and used to run on the processor, characterized in that: When the processor executes the computer program, the cell reselection method according to any one of claims 1 to 8 is implemented.