WO2023015532A1 - Cell reselection method and apparatus, device, and storage medium - Google Patents

Abstract

A cell reselection method and apparatus, a device, and a storage medium, relating to the technical field of communications. The method comprises: when a target cell is not a suitable cell due to the fact that the target cell does not meet a cell selection criterion, not considering the target cell as a reselection candidate cell; or not considering the target cell and other intra-frequency cells as reselection candidate cells; or considering the priority of the frequency where the target cell is located as the lowest priority (S310). A subsequent operation of a terminal device is provided when a target cell is not a suitable cell due to the fact that the target cell does not meet a cell selection criterion, so that the terminal device is prevented from performing cell reselection and selecting the target cell that does not meet the cell selection criterion (for example, an S criterion), thereby avoiding that a connection cannot be normally established between the terminal device and a network device, or avoiding that a service cannot be initiated due to extremely poor signal conditions.

Description

Cell reselection method, device, equipment and storage medium technical field

The present application relates to the field of communication technologies, and in particular to a cell reselection method, device, equipment and storage medium.

Background technique

In order to obtain better network services, etc., the terminal device can perform cell reselection.

In related technologies, when a terminal device performs cell reselection, it can find a cell that meets the reselection conditions and has the best signal quality on each frequency according to the frequency priority order configured by the network device, as the target cell, and finally checks the target cell. Whether the cell is a suitable cell (Suitable Cell, which can also be interpreted as "suitable cell"). If the target cell is a suitable cell, reselect to the target cell; if the target cell is not a suitable cell, perform subsequent operations in the manner discussed in the communication protocol.

However, for the case that the target cell is not a suitable cell because it does not satisfy the cell selection criterion (such as the S criterion), subsequent operations performed by the terminal device have not been mentioned and discussed yet.

Contents of the invention

Embodiments of the present disclosure provide a cell reselection method, device, device, and storage medium, and provide subsequent operations performed by a terminal device when a target cell is not a suitable cell because it does not meet cell selection criteria. Described technical scheme is as follows:

According to one aspect of the present disclosure, a cell reselection method is provided, which is applied to a terminal device, and the method includes:

determining that the target cell does not meet cell selection criteria;

It is determined that the target cell is not a suitable cell.

According to one aspect of the present disclosure, a cell reselection method is provided, which is applied to a network device, and the method includes:

Broadcasting a system message to the terminal device, where the system message includes first configuration information, and the first configuration information is used to configure the terminal device to perform cell reselection when the target cell does not meet the cell selection criteria and is not a suitable cell.

According to one aspect of the present disclosure, a cell reselection device is provided, and the device includes:

A determining module, configured to: determine that the target cell does not meet the cell selection criteria; determine that the target cell is not a suitable cell.

According to one aspect of the present disclosure, a cell reselection device is provided, and the device includes:

A sending module, configured to broadcast a system message to the terminal device, where the system message includes first configuration information, and the first configuration information is used to configure the terminal device to perform cell reconfiguration when the target cell does not meet the cell selection criteria and is not a suitable cell select.

According to one aspect of the present disclosure, a cell reselection method is provided, which is applied to a terminal device, and the method includes:

If the target cell is not a suitable cell because it does not meet the cell selection criteria, do not consider the target cell as a candidate cell for reselection; or, if the target cell is not a suitable cell because it does not meet the cell selection criteria, do not Consider using the target cell and other cells of the same frequency as candidate cells for reselection; the other cells of the same frequency refer to other cells on the frequency point where the target cell is located; or, the target cell fails to meet the cell selection criteria If it is not a suitable cell, the priority of the frequency point where the target cell is located is regarded as the lowest priority.

According to one aspect of the present disclosure, a cell reselection method is provided, which is applied to a network device, and the method includes:

Sending first configuration information to the terminal device; wherein the first configuration information is used to configure operations performed by the terminal device when the target cell is not a suitable cell because it does not meet the cell selection criteria.

According to one aspect of the present disclosure, a cell reselection device is provided, and the device includes:

An execution module, configured to: when the target cell is not a suitable cell because it does not meet the cell selection criteria, do not consider the target cell as a candidate cell for reselection; or, when the target cell is not a suitable cell because it does not meet the cell selection criteria In the case of a cell, the target cell and other cells of the same frequency are not considered as reselection candidate cells; the other cells of the same frequency refer to other cells on the frequency point where the target cell is located; or, in the target cell due to In the case that the cell selection criterion is not met but is not a suitable cell, the priority of the frequency point where the target cell is located is regarded as the lowest priority.

According to one aspect of the present disclosure, a cell reselection device is provided, and the device includes:

The sending module is configured to: send first configuration information to the terminal device; wherein the first configuration information is used to configure the target cell that is not a suitable cell because it does not meet the cell selection criteria, the terminal device executes operation.

According to an aspect of the present disclosure, there is provided a terminal device, the terminal device includes: a processor; a transceiver connected to the processor; wherein the processor is configured to load and execute executable instructions to implement The cell reselection method on the side of the terminal device is as described above.

According to an aspect of the present disclosure, there is provided a network device, the network device includes: a processor; a transceiver connected to the processor; wherein the processor is configured to load and execute executable instructions to implement The cell reselection method on the network device side is as described above.

According to an aspect of the present disclosure, a computer-readable storage medium is provided, the computer-readable storage medium stores at least one instruction, at least one program, code set or instruction set, the at least one instruction, the at least A section of program, the code set or the instruction set is loaded and executed by the processor to implement the above cell reselection method.

The beneficial effects brought by the technical solutions provided by the embodiments of the present disclosure at least include:

By providing the subsequent operations performed by the terminal device in the case that the target cell is not a suitable cell because it does not meet the cell selection criteria, such as the terminal device does not consider the target cell as a candidate cell for reselection, or does not consider the target cell and the same frequency Other cells are used as reselection candidate cells, or the priority of the frequency point where the target cell is located is regarded as the lowest priority, which prevents the terminal device from performing cell reselection and selecting a target cell that does not meet the cell selection criteria (such as the S criterion), In this way, the connection between the terminal device and the network device cannot be established normally, or the service cannot be initiated due to poor signal conditions, and unnecessary power consumption and reselection delay caused by multiple executions of cell reselection are avoided. , improving the efficiency of cell reselection.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

Fig. 1 is a schematic diagram of a communication system provided by an exemplary embodiment of the present disclosure;

FIG. 2 is a flowchart of a cell reselection method provided by an exemplary embodiment of the present disclosure;

FIG. 3 is a flowchart of a cell reselection method provided by another exemplary embodiment of the present disclosure;

Fig. 4 is a flow chart of a cell reselection method provided by another exemplary embodiment of the present disclosure;

Fig. 5 is a flowchart of a cell reselection method provided by another exemplary embodiment of the present disclosure;

Fig. 6 is a structural block diagram of a cell reselection device provided by an exemplary embodiment of the present disclosure;

Fig. 7 is a structural block diagram of a cell reselection device provided by another exemplary embodiment of the present disclosure;

Fig. 8 is a structural block diagram of a cell reselection device provided by another exemplary embodiment of the present disclosure;

Fig. 9 is a structural block diagram of a cell reselection device provided by another exemplary embodiment of the present disclosure;

Fig. 10 is a schematic structural diagram of a communication device provided by an exemplary embodiment of the present disclosure.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numerals in different drawings indicate the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only, and is not intended to limit the present disclosure. As used in this disclosure and the appended claims, the singular forms "a," "the" and "the" are also intended to include the plural unless the context clearly dictates otherwise. It should also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the present disclosure, first information may also be called second information, and similarly, second information may also be called first information. Depending on the context, for example, the word "if" as used herein could be interpreted as "at" or "when" or "in response to a determination".

Please refer to FIG. 1 , which shows a schematic diagram of a communication system provided by an embodiment of the present disclosure. The communication system may include: a terminal device 10 and a network device 20 .

There are generally multiple terminal devices 10, and one or more terminal devices 10 may be distributed in a cell managed by each network device 20. The terminal device 10 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem, as well as various forms of user equipment (User Equipment, UE), mobile station (Mobile Station, MS) and so on. For convenience of description, in the embodiment of the present application, the above-mentioned devices are collectively referred to as terminal devices.

The network device 20 is a device deployed in an access network to provide a wireless communication function for the terminal device 10 . The network device 20 may include various forms of macro base stations, micro base stations, relay stations, access points and so on. In systems using different radio access technologies, the names of devices with network device functions may be different. For example, in 5G NR systems, they are called gNodeB or gNB. The term "network equipment" may change as communications technology evolves. For the convenience of description, in the embodiment of the present application, the above-mentioned devices that provide the wireless communication function for the terminal device 10 are collectively referred to as network devices. A connection can be established between the network device 20 and the terminal device 10 through an air interface, so as to perform communication through the connection, including signaling and data interaction. The number of network devices 20 may be multiple, and communication between two adjacent network devices 20 may also be performed in a wired or wireless manner. The terminal device 10 can switch between different network devices 20 , that is, establish connections with different network devices 20 .

The "5G NR system" in the embodiments of the present disclosure may also be called a 5G system or an NR system, but those skilled in the art can understand its meaning. The technical solution described in the embodiments of the present disclosure can be applied to the 5G NR system, and can also be applied to the subsequent evolution system of the 5G NR system.

In order to obtain better network services, etc., the terminal device can perform cell reselection.

In related technologies, when a terminal device performs cell reselection, it can release (Release) messages through SIB (System Information Broadcast, System Information Broadcast), RRC (Radio Resource Control, Radio Resource Control), Inter-RAT (Inter -Radio Access Type, between wireless access types) inherits the configured frequency point priority order, finds the cell that meets the reselection conditions and has the best signal quality on each frequency, as the target cell, and finally checks whether the target cell is suitable neighborhood. If the target cell is a suitable cell, reselect to the target cell; if the target cell is not a suitable cell, perform subsequent operations in the manner discussed in the communication protocol.

In one example, cell reselection is divided into intra-frequency cell reselection, inter-frequency cell reselection, or inter-system cell reselection, and inter-frequency cell reselection can be divided into high-priority inter-frequency cell reselection according to different priorities , Low-priority inter-frequency cell reselection and same-priority inter-frequency cell reselection. Since different systems do not support the same frequency and priority configuration, the cell reselection of different systems can be regarded as different frequency and different priority cell reselection, and cell reselection is performed according to the high/low priority different frequency cell reselection rules.

For the above types of cell reselection, the reselection criteria include: cell reselection measurement criteria, cell reselection criteria and sorting criteria. In the following, these several reselection criteria are introduced and explained respectively.

1. Cell reselection measurement criteria.

When the signal quality of the serving cell is higher than a certain threshold (Srxlev>S _IntraSearchP and Squal>S _IntraSearchQ ), the terminal device may not perform intra-frequency measurement. Otherwise, the terminal device performs intra-frequency measurement.

If there are high-priority NR (New Radio, new air interface) frequency points or inter-RAT frequency points, the terminal device performs high-priority frequency point measurement.

If there are equal priority or low priority frequency points, when the signal quality of the serving cell is less than a certain threshold (Srxlev<S _{nonIntraSearchP} and Squal<S _{nonIntraSearchQ} ), the terminal device performs equal priority or low priority frequency point measurement .

2. Community reselection criteria.

If the terminal device stays in the current serving cell for more than 1 second, and the service quality of the same frequency or the same priority different frequency cell is better than the serving cell for a period of time, the terminal device performs same frequency cell reselection or the same priority different frequency cell re-election.

If the terminal device stays in the current serving cell for more than 1 second, and there is a high-priority frequency cell that satisfies Srxlev>Thresh _{X, HighP} or Squal>Thresh _{X, HighQ} in Treselection _RAT , the terminal device performs high-priority inter-frequency cell re- select.

If the terminal device stays in the current serving cell for more than 1 second, and the current serving cell satisfies Srxlev<Thresh _Serving,LowP , if there is a low-priority frequency point cell in Treselection _RAT that satisfies Srxlev>Thresh _X,LowP , the terminal device performs low priority Level inter-frequency cell reselection.

3. Sorting criteria.

For different types of cell reselection, if only one cell satisfies the corresponding cell reselection criteria, this cell will be used as the target cell; if there are multiple cells that meet the corresponding cell reselection criteria, the terminal device performs a sorting operation to determine the highest ranking The cell is used as the target cell.

The terminal device sorts the cells that meet the cell reselection criterion and the S criterion, and determines the highest-ranked cell based on the following criteria.

If the terminal device is configured with Rangetobestcell, then determine the cell whose R value is between [Rbest-rangetobestcell, Rbest] and the number of beams exceeding the configured threshold is the highest as the cell with the highest ranking; if there are multiple cells that meet this condition, then The cell with the highest R value is determined as the cell with the highest ranking.

If the terminal device is not configured with a Rangetobest cell, the cell with the highest R value is determined as the cell with the highest ranking.

For the target cell determined by the above operations, the terminal device reads the system information of the target cell, and judges whether the target cell is a suitable cell based on the parameters in the system information. If the target cell is a suitable cell, reselect to the target cell; if the target cell is not a suitable cell, determine whether to perform subsequent operations such as reselection to other cells of the same frequency according to the manner discussed in the communication protocol.

In related technologies, the terminal device uses the reselection parameters broadcast by the serving cell when evaluating the Srxlev and Squal of the neighboring cell, but in the final inspection, the terminal device needs to use the system parameters broadcast by the target cell for S Criterion Evaluation. Due to the different parameters used, there is a situation where, for the target cell, the calculation of the reselection system parameters based on the serving cell broadcast satisfies the S criterion, but in the final inspection based on the calculation of the system parameters broadcast by the target cell does not satisfy the S criterion. criterion, which leads to the fact that the target cell is not a suitable cell.

However, for the case that the target cell is not a suitable cell because it does not satisfy the cell selection criterion (such as the S criterion), subsequent operations performed by the terminal device have not been mentioned and discussed yet. If there is no reselection restriction on the target cell and other cells in the same frequency, it may cause the terminal device to perform cell reselection again and finally check the target cell without considering other cells until the calculation based on the system parameters broadcast by the target cell The S criterion can be met, or the cell with the highest ranking is changed and reselected to another cell. However, this will cause the terminal equipment to perform multiple repeated and unnecessary cell reselections, thereby introducing unnecessary power consumption and reselection delay.

Based on this, an embodiment of the present application provides a cell reselection method, which provides subsequent operations performed by a terminal device when a target cell is not a suitable cell because it does not meet the cell selection criteria. In the following, the technical solution provided by the present application will be described through several embodiments.

Please refer to FIG. 2 , which shows a flowchart of a cell reselection method provided by an embodiment of the present disclosure. The method can be applied to the communication system shown in FIG. 1 . The method includes the following steps.

Step 210, the terminal device determines that the target cell does not satisfy the cell selection criteria.

Step 220, the terminal device determines that the target cell is not a suitable cell.

In one example, as shown in FIG. 2, the above method further includes step 230, the terminal device does not use the target cell as a candidate cell for reselection; or, the terminal device does not use the target cell and other cells of the same frequency as candidate cells for reselection, wherein , the other cells of the same frequency are other cells on the frequency point where the target cell is located; or, the terminal device sets the priority of the frequency point where the target cell is located as the lowest priority.

In one example, as shown in FIG. 2 , the above method further includes step 240, the network device broadcasts a system message to the terminal device, the system message includes first configuration information, and the first configuration information is used for cell reselection.

Optionally, the first configuration information is used to configure any of the following: take the target cell and/or other cells of the same frequency as reselection candidate cells; take the priority of the frequency point where the target cell is located as the lowest priority.

Optionally, the terminal device reselects the cell within the first time period, and/or the terminal device reselects the cell within the first reselection times.

In one example, as shown in FIG. 2 , the above method further includes step 250, the network device sends second configuration information to the terminal device, the second configuration information includes at least one of the following items: a first duration, and the duration of the first time period is less than Or equal to the first duration; the first number of reselections; the duration of the first time period.

In an example, the duration of the first time period is predefined by the communication protocol; or, the duration of the first time period is less than or equal to the first duration, and the first duration is predefined by the communication protocol.

In one example, the first number of reselections is predefined by the communication protocol.

Optionally, the second configuration information is carried in at least one of the following messages: a system message, and a radio resource control RRC release message.

In one example, the network device includes a serving cell and/or a target cell.

It should be noted that, for a detailed description of the embodiment in FIG. 2 , please refer to the following embodiments, and details will not be repeated here. It should be understood that in the embodiment of FIG. 2, the above steps 240 and 250 may be performed before the above steps 210 and 220, or may be performed after the above steps 210 and 220, which is not limited in this embodiment of the present application.

To sum up, the technical solution provided by the embodiment of the present application provides subsequent operations performed by the terminal device when the target cell is not a suitable cell because it does not meet the cell selection criteria. For example, the terminal device does not consider the target cell as a cell. Reselect candidate cells, or do not consider the target cell and other cells of the same frequency as reselection candidate cells, or regard the priority of the frequency point where the target cell is located as the lowest priority, which prevents the terminal device from performing cell reselection and selecting to Target cells that do not meet the cell selection criteria (such as S criteria), so as to avoid the failure to establish a connection between the terminal device and the network device, or to avoid the inability to initiate services due to poor signal conditions, and to avoid multiple executions of cell re-starting Unnecessary power consumption and reselection delay caused by cell selection improve the efficiency of cell reselection.

Please refer to FIG. 3 , which shows a flowchart of a cell reselection method provided by an embodiment of the present disclosure. This method can be applied to the communication system shown in Fig. 1 . The method includes the following steps.

Step 310, when the target cell is not a suitable cell because it does not meet the cell selection criteria, the terminal device does not consider the target cell as a candidate cell for reselection; or, in the case that the target cell is not a suitable cell because it does not meet the cell selection criteria In this case, the terminal device does not consider the target cell and other cells of the same frequency as reselection candidate cells; or, when the target cell is not a suitable cell because it does not meet the cell selection criteria, the terminal device will prioritize the frequency of the target cell. level is considered the lowest priority.

During the cell reselection process, the terminal device can first determine the target cell through the reselection parameters broadcast by the serving cell, and then finally check whether the target cell is a suitable cell through the system message of the target cell. In an example, when finally checking whether the target cell is a suitable cell, the terminal device may determine whether the target cell is a suitable cell by checking whether the target cell satisfies a cell selection criterion. Optionally, the cell selection criterion includes but is not limited to the S criterion. For example, in the 5G NR system, the cell selection criterion includes the S criterion; in the subsequent evolution system of the 5G NR system, the cell selection criterion may include other criteria. Examples are not limited to this.

In an example, the cell selection criterion includes an S criterion, and the terminal device uses the S criterion to judge whether the target cell is suitable for camping on. Optionally, the S criterion includes: Squal>0 and Srxlev>0. Squal is the cell selection quality value, and Squal=Q _qualmeas –(Q _qualmin +Q _{qualminoffset} )-Qoffset _temp , where Q _qualmeas is the measured cell reference signal quality value, Q _qualmin is the minimum signal quality requirement of the cell, and Q _{qualminoffset} is the offset Qoffset _temp is the temporary offset used for the cell whose connection establishment fails. Srxlev is the cell selection received power, and Srxlev=Q _rxlevmeas -(Q _rxlevmin +Q _{rxlevminoffset} )-P _compensation -Qoffset _temp , wherein, Q _rxlevmeas is the power strength of the measured cell reference signal (such as RSRP (Reference Signal Receiving Power, reference Signal received power) value), Q _rxlevmin is the lowest receiving level, Q _{rxlevminoffset} is an offset, P _compensation is a power compensation value, and Qoffset _temp is a temporary offset for a cell whose connection establishment fails.

Based on the above example, when the terminal device finally checks whether the target cell is a suitable cell, if the target cell meets the cell selection criteria, the terminal device determines that the target cell is a suitable cell, and reselects to the target cell; if the target cell does not meet the cell selection criteria criterion, the terminal device determines that the target cell is not a suitable cell.

In the embodiment of this application, when the target cell is not a suitable cell because it does not meet the cell selection criteria, the terminal device performs any of the following behaviors: do not consider the target cell as a candidate cell for reselection, do not consider the target cell and the same Other cells of the frequency are used as reselection candidate cells, and the priority of the frequency point where the target cell is located is regarded as the lowest priority. The other cells of the same frequency refer to other cells on the frequency point where the target cell is located, that is to say, the frequency points of the other cells of the same frequency and the target cell are the same.

Based on this, in one example, when the target cell is not a suitable cell because it does not meet the cell selection criteria, the terminal device does not consider the target cell as a candidate cell for reselection; in another example, when the target cell does not meet the In the case of a cell selection criterion other than a suitable cell, the terminal device does not consider the target cell and other cells of the same frequency as reselection candidate cells; in another example, when the target cell is not a suitable cell because it does not meet the cell selection criteria In this case, the terminal device does not consider other cells of the same frequency as reselection candidate cells; in another example, when the target cell is not a suitable cell because it does not meet the cell selection criteria, the terminal device uses Priority is considered the lowest priority.

In this embodiment of the present application, by providing subsequent operations performed by the terminal device when the target cell does not meet the cell selection criteria and is not a suitable cell, it prevents the terminal device from performing cell reselection and selecting a cell that does not meet the cell selection criteria (such as S Criterion), so as to avoid failure to establish a connection between the terminal equipment and the network equipment normally, or avoid failure to initiate services due to poor signal conditions.

In an example, if the terminal device does not consider the target cell as a candidate cell for reselection, the terminal device may remove the target cell from the candidate cell for reselection, and select the cell with the highest ranking among the candidate cells for reselection to continue cell reselection. Related operations: If the terminal device does not consider the target cell and other cells of the same frequency as reselection candidate cells, the terminal device can remove the target cell and other cells of the same frequency from the reselection candidate cell, and select the highest ranking among the reselection candidate cells If the terminal device regards the priority of the frequency point where the target cell is located as the lowest priority, the terminal device can reorder the reselection candidate cells and select the highest ranking among the reselection candidate cells. The highest cell continues to perform operations related to cell reselection.

The embodiment of the present application does not limit the method of determining the above-mentioned operations performed by the terminal device. In one example, the above-mentioned operations performed by the terminal device are configured by the network device. Based on this, please refer to FIG. 4 . In step 320, the network device sends the first configuration information to the terminal device; in another example, the above operations performed by the terminal device are predefined by the communication protocol.

Wherein, when the above-mentioned operation performed by the terminal device is network device configuration, the network device configures the above-mentioned operation performed by the terminal device through first configuration information, and the first configuration information may be carried in a system message broadcast by the network device, As in the SIB message. Optionally, the network device includes a serving cell, or the network device includes a target cell, or the network device includes a serving cell and a target cell. Optionally, the first configuration information is used to configure any of the following: whether the terminal device considers the target cell as a candidate cell for reselection; whether the terminal device considers other cells of the same frequency as candidate cells for reselection; whether the terminal device considers the The target cell and other cells of the same frequency are used as reselection candidate cells; whether the terminal device regards the priority of the frequency point where the target cell is located as the lowest priority.

In an example, the network device sends first configuration information to the terminal device, where the first configuration information is used to configure whether the terminal device considers the target cell as a candidate cell for reselection. Exemplarily, the first configuration information is used to configure the terminal device to consider the target cell as a candidate cell for reselection. Then, when the target cell is not a suitable cell because it does not meet the cell selection criteria, the terminal device, based on the first configuration information, The target cell is still considered during cell reselection. Exemplarily, the first configuration information is used to configure the terminal device not to consider the target cell as a candidate cell for reselection. Then, when the target cell is not a suitable cell because it does not meet the cell selection criteria, the terminal device , the target cell is no longer considered in the cell reselection process.

Optionally, in the case where the first configuration information is only used to configure whether the terminal device considers the target cell as a candidate cell for reselection, the terminal device based on the predefined communication protocol and/or its own implementation and/or the first configuration information Consider whether to use other cells of the same frequency as candidate cells for reselection. Exemplarily, whether the first configuration information is used to configure the terminal device to consider the target cell as a candidate cell for reselection, or to configure the terminal device not to consider the target cell as a candidate cell for reselection, the terminal device is based on the predefined And/or its own implementation, without considering other cells of the same frequency as reselection candidate cells; or, when the first configuration information is used to configure the terminal device to consider the target cell as a reselection candidate cell, the terminal device based on the first The configuration information also considers other cells of the same frequency as reselection candidate cells. When the first configuration information is used to configure the terminal device not to consider the target cell as a reselection candidate cell, the terminal device does not consider the target cell based on the first configuration information. Other cells of the same frequency are used as candidate cells for reselection.

In another example, the network device sends first configuration information to the terminal device, where the first configuration information is used to configure whether the terminal device considers other cells of the same frequency as reselection candidate cells. Exemplarily, the first configuration information is used to configure the terminal device to consider other cells of the same frequency as reselection candidate cells. Then, when the target cell is not a suitable cell because it does not meet the cell selection criteria, the terminal device does not consider the target cell. The cell is used as a candidate cell for reselection, and based on the first configuration information, other cells of the same frequency are still considered during the cell reselection process. Exemplarily, the first configuration information is used to configure the terminal device not to consider other cells of the same frequency as reselection candidate cells. Then, when the target cell is not a suitable cell because it does not meet the cell selection criteria, the terminal device does not consider the The target cell is used as a candidate cell for reselection, and based on the first configuration information, other cells of the same frequency are no longer considered during the cell reselection process.

In yet another example, the network device sends first configuration information to the terminal device, where the first configuration information is used to configure whether the terminal device considers the target cell and other cells of the same frequency as candidate cells for reselection. Exemplarily, the first configuration information is used to configure the terminal device to consider the target cell and other cells of the same frequency as reselection candidate cells. Then, when the target cell is not a suitable cell because it does not meet the cell selection criteria, the terminal device based on The first configuration information still considers the target cell and other cells of the same frequency during the cell reselection process. Exemplarily, the first configuration information is used to configure the terminal device not to consider the target cell and other cells of the same frequency as reselection candidate cells. Then, when the target cell is not a suitable cell because it does not meet the cell selection criteria, the terminal device Based on the first configuration information, the target cell and other cells of the same frequency are no longer considered in the cell reselection process.

In yet another example, the network device sends first configuration information to the terminal device, where the first configuration information is used to configure whether the terminal device regards the priority of the frequency point where the target cell is located as the lowest priority. Exemplarily, the first configuration information is used to configure the terminal device to regard the priority of the frequency point where the target cell is located as the lowest priority. Then, when the target cell is not a suitable cell because it does not meet the cell selection criteria, the terminal device Based on the first configuration information, the priority of the frequency point where the target cell is located is regarded as the lowest priority in the cell reselection process.

To sum up, the technical solution provided by the embodiment of the present application provides subsequent operations performed by the terminal device when the target cell is not a suitable cell because it does not meet the cell selection criteria. For example, the terminal device does not consider the target cell as a cell. Reselect candidate cells, or do not consider the target cell and other cells of the same frequency as reselection candidate cells, or regard the priority of the frequency point where the target cell is located as the lowest priority, which prevents the terminal device from performing cell reselection and selecting to Target cells that do not meet the cell selection criteria (such as S criteria), so as to avoid the failure to establish a connection between the terminal device and the network device, or to avoid the inability to initiate services due to poor signal conditions, and to avoid multiple executions of cell re-starting Unnecessary power consumption and reselection delay caused by cell selection improve the efficiency of cell reselection.

In the embodiment of the present application, the above-mentioned operations performed by the terminal device (that is, the above-mentioned step 310) may be valid under certain conditions, and may also be canceled when certain conditions are met.

Firstly, an introduction is given to explain that the above-mentioned operations performed by the terminal device are effective under certain conditions.

In a possible implementation manner, when the target cell is not a suitable cell because it does not meet the cell selection criterion, the above operation performed by the terminal device is valid within the first time period.

The embodiment of the present application does not limit the method of determining the first time period. In one example, the first time period is configured by the network device. Based on this, please refer to FIG. 4. Step 330 is also included before the above step 310. The network The device sends the second configuration information to the terminal device; in another example, the above-mentioned first time period is predefined by a communication protocol.

Wherein, when the above-mentioned first time period is configured by the network device, the network device configures the above-mentioned first time period through the second configuration information, and the second configuration information may be carried in at least one of the following messages: system message, RRC release information. Optionally, the network device includes a serving cell, or the network device includes a target cell, or the network device includes a serving cell and a target cell.

In an example, when the network device configures or the communication protocol predefines the first time period, the network device may configure or the communication protocol may predefine the duration of the first time period. That is, the duration of the first time period is configured by the network device through the second configuration information, or the duration of the first time period is predefined by the communication protocol.

In another example, when the network device configures or the communication protocol predefines the first time period, the network device may configure or the communication protocol may predefine the maximum duration of the first time period. That is, the duration of the first time period is less than or equal to the first duration (that is, the maximum duration of the first time period is the first duration), and the first duration is configured by the network device through the second configuration information, or, The first duration is predefined by the communication protocol. Exemplarily, the network device configuration or the communication protocol predefines the first duration, and when the target cell is not a suitable cell because it does not meet the cell selection criteria, the terminal device determines that the duration of the first time period is less than the first duration based on its own implementation ; Or, based on its own implementation, the terminal device determines that the duration of the first time period is equal to the first duration.

Exemplarily, if the network device configuration or the communication protocol pre-defines the first time period as 300 seconds, then within the 300 seconds, the above operations performed by the terminal device (that is, step 310 ) are valid. Exemplarily, the network device configures the duration of the first time period to be at most 300 seconds (that is, the first duration is 300 seconds), then the effective duration of the above-mentioned operation (ie, step 310) performed by the terminal device is at most 300 seconds, thus, Based on its own implementation, the terminal device may set the duration of the first time period equal to 300 seconds or less than 300 seconds. Exemplarily, the duration of the first time period predefined by the communication protocol is at most 300 seconds (that is, the first duration is 300 seconds), and the effective duration of the above-mentioned operation (ie, step 310) performed by the terminal device is at most 300 seconds, so , the terminal device may set the length of the first time period equal to 300 seconds or less than 300 seconds based on its own implementation.

In yet another example, when the network device configures or the communication protocol predefines the first time period, the network device may further configure or the communication protocol may also predefine a starting moment of the first time period. That is, the duration and start time of the first time period are configured by the network device through the second configuration information, or the duration and start time of the first time period are predefined by the communication protocol; or, the first time period above The duration of the time period is less than or equal to the first duration, the first duration and the start time of the first time period are configured by the network device through the second configuration information, or the first duration and the start moment of the first time period are communication The protocol is predefined; or, the duration of the first time period is configured by the network device through the second configuration information, and the starting moment of the first time period is predefined by the communication protocol; or, the duration of the first time period is the communication The protocol is predefined, and the starting moment of the first time period is configured by the network device through the second configuration information; or, the duration of the first time period is shorter than the first time period, and the first time period is configured by the network device through the second configuration information , and the starting moment of the first time period is predefined by the communication protocol; or, the duration of the first time period is less than the first duration, the first duration is predefined by the communication protocol, and the starting moment of the first time period It is configured by the network device through the second configuration information.

Exemplarily, if the network device only configures or the communication protocol only predefines the duration of the first time period or the first duration, then, when the target cell is not a suitable cell because it does not meet the cell reselection criterion, the terminal device may immediately The above operation (that is, the above step 310) is executed, and at the same time, the timing of the first time period can be started immediately.

Exemplarily, if the network device configuration or communication protocol predefines the duration and start time of the first time period, or the first time length and the start time of the first time period, then the target cell does not meet the cell reselection criterion In the case of an unsuitable cell, the terminal device may start to perform the above operation (ie step 310) and start timing of the first time period at the beginning of the first time period predefined by network device configuration or communication protocol.

It should be noted that the above operation performed by the terminal device may be valid within the first time period by using a timer. That is to say, the running time of the timer is the length of the first time period, and the terminal device can realize the timing of the first time period by starting the timer. During the running time of the timer, the terminal device performs the above operations (ie step 310).

In another possible implementation manner, when the target cell is not a suitable cell because it does not meet the cell selection criterion, the operation performed by the terminal device is valid within the first reselection times.

The first number of reselections refers to the number of cell reselections. The embodiment of the present application does not limit the specific value of the first reselection times N (N is equal to 1, or N is an integer greater than 1). Optionally, the first reselection times are 1, or 2, or 3, or 4 etc. The embodiment of the present application does not limit the method of determining the first number of reselections. In one example, the first number of reselections is configured by the network device. Based on this, please refer to FIG. 4 , step 330 is also included before the above step 310 , the network device sends the second configuration information to the terminal device; in another example, the above-mentioned first number of reselections is predefined by the communication protocol.

Wherein, when the above-mentioned first reselection times are configured by the network device, the network device configures the above-mentioned first reselection times through the second configuration information, and the second configuration information may be carried in at least one of the following messages: system message, RRC release message. Optionally, the network device includes a serving cell, or the network device includes a target cell, or the network device includes a serving cell and a target cell.

It should be noted that in the embodiment of the present application, the above two conditions (the first time period and the first number of reselections) can be used alone or in combination. For an example of using these two conditions alone, please refer to the above embodiments; when these two conditions are used in combination, when the target cell is not a suitable cell because it does not meet the cell selection criteria, the above operations performed by the terminal device (ie Step 310) is valid within the first time period and the first number of reselections. That is to say, in the case that the target cell is not a suitable cell because it does not meet the cell reselection criteria, the terminal device will perform the above operation only if it satisfies both within the first time period and within the first reselection times; if If the first time period is exceeded but the first reselection times are not exceeded, or, if the first reselection times are exceeded but the first time period is not exceeded, the terminal device will no longer perform the above operations.

Secondly, it introduces and explains how to cancel the execution of the above-mentioned operations performed by the terminal device when certain conditions are met.

In an example, when the first condition is satisfied, the terminal device cancels the execution of the above operation (that is, the above step 310). The embodiment of the present application does not limit the content of the first condition. Optionally, the first condition includes at least one of the following: the cell with the highest ranking has changed, the third configuration information from the network device is received, and the system message from the network device An update occurs.

The first condition includes that the cell with the highest ranking has changed, and optionally, the ranking includes at least one of the following: frequency point priority ranking, R value ranking, and beam number ranking. In one example, if the cell with the highest rank has changed, that is, the target cell is no longer the cell with the highest rank among the reselection candidate cells, the terminal device cancels the above operation (that is, the above step 310), and based on the current highest rank The cell continues to perform operations related to cell reselection.

For the first condition including receiving the third configuration information from the network device, please refer to FIG. 5 , the third configuration information is used to configure the terminal device to cancel the above operation (that is, the above step 310), and the third configuration information can be carried in the following At least one message: system message, RRC release message. Optionally, the network device includes a serving cell, or the network device includes a target cell, or the network device includes a serving cell and a target cell.

For the first condition including that system information of the network device is updated, optionally, the network device includes a serving cell, or the network device includes a target cell, or the network device includes a serving cell and a target cell. Exemplarily, the system information of the serving cell is updated, and the reselection parameters corresponding to the target cell in the system information broadcast by the serving cell are changed, so that the target cell no longer satisfies the cell reselection criteria and no longer belongs to the reselection candidate cell, then The terminal device cancels the execution of the above operation (that is, the above step 310).

It should be noted that, for the above-mentioned first condition, the terminal device can cancel the execution of the above-mentioned operation (that is, the above-mentioned step 310) when any one, two or three of them are satisfied, that is, the above-mentioned three conditions (The cell with the highest ranking has changed, the third configuration information from the network device has been received, and the system information of the network device has been updated) can be combined arbitrarily, which is not limited in this application.

To sum up, the technical solution provided by the embodiment of this application provides a validity period or a condition for canceling execution for the operation performed by the terminal device when the target cell does not meet the cell reselection criteria and is not a suitable cell, This enables the terminal equipment to perform cell reselection flexibly.

It should be noted that, in the foregoing embodiments, the cell reselection method provided in the embodiments of the present application is described from the perspective of interaction between the terminal device and the network device. In the above embodiments, the steps performed by the terminal equipment may be implemented as a cell reselection method on the terminal equipment side; the steps performed by the network equipment may be implemented as a cell reselection method on the network equipment side.

FIG. 6 is a structural block diagram of an apparatus for cell reselection provided by an exemplary embodiment of the present disclosure. As shown in FIG. 6 , the apparatus 600 is used for a terminal device as an example, and the apparatus 600 includes: a determination module 610 .

A determining module 610, configured to determine that the target cell does not satisfy the cell selection criteria.

The determining module 610 is further configured to determine that the target cell is not a suitable cell.

In an example, as shown in FIG. 7 , the apparatus 600 further includes: a receiving module 620, configured to receive a system message broadcast by a network device, where the system message includes first configuration information, and the first configuration information is used for District re-election.

In one example, as shown in FIG. 7 , the apparatus 600 further includes an execution module 630 configured to: not use the target cell as a candidate cell for reselection; or not use the target cell and other cells of the same frequency as Reselecting a candidate cell, wherein the other cells of the same frequency are other cells on the frequency point where the target cell is located; or, setting the priority of the frequency point where the target cell is located to the lowest priority.

In an example, the first configuration information is used to configure any of the following: using the target cell and/or the other cells of the same frequency as the reselection candidate cell; setting the frequency point where the target cell is located priority as the lowest priority.

In an example, the cell reselection device reselects a cell within a first time period, and/or, the cell reselection device reselects a cell within a first reselection times.

In one example, as shown in FIG. 7 , the apparatus 600 further includes: a receiving module 620, configured to: receive second configuration information sent by a network device, where the second configuration information includes at least one of the following: a first duration , the duration of the first time period is less than or equal to the first duration; the first number of reselections; and the duration of the first time period.

In an example, the duration of the first time period is predefined by a communication protocol; or, the duration of the first time period is less than or equal to a first duration, and the first duration is predefined by a communication protocol.

In an example, the first number of reselections is predefined by a communication protocol.

In an example, the second configuration information is carried in at least one of the following messages: system message, radio resource control RRC release message.

FIG. 8 is a structural block diagram of an apparatus for cell reselection provided by an exemplary embodiment of the present disclosure. As shown in FIG. 8 , taking the apparatus used in a network device as an example, the apparatus 800 includes: a sending module 810 .

The sending module 810 is configured to broadcast a system message to the terminal device, where the system message includes first configuration information, and the first configuration information is used to configure the terminal device to perform cell selection when the target cell does not meet the cell selection criteria and is not a suitable cell re-election.

In an example, the first configuration information is used to configure any one of the following: using the target cell and/or the other cells of the same frequency as the reselection candidate cell; The priority of the point is taken as the lowest priority. In an example, the sending module 810 is further configured to send second configuration information to the terminal device, where the second configuration information is used to configure at least one of the following items: the first duration; the first number of reselections; The duration of a period of time.

In an example, the second configuration information is carried in at least one of the following messages: a system message and an RRC release message.

FIG. 9 is a structural block diagram of an apparatus for cell reselection provided by an exemplary embodiment of the present disclosure. As shown in FIG. 9 , the apparatus 900 is used for a terminal device as an example, and the apparatus 900 includes: an execution module 910 .

Executing module 910, configured to: when the target cell is not a suitable cell because it does not meet the cell selection criteria, do not consider the target cell as a candidate cell for reselection; or, when the target cell does not meet the cell selection criteria and is not In the case of a suitable cell, the target cell and other cells of the same frequency are not considered as reselection candidate cells; the other cells of the same frequency refer to other cells on the frequency point where the target cell is located; or, in the target cell In the case that the cell is not a suitable cell because the cell selection criterion is not satisfied, the priority of the frequency point where the target cell is located is regarded as the lowest priority.

In an example, when the target cell is not the suitable cell because it does not meet the cell selection criterion, the operation performed by the terminal device is configured by the network device through the first configuration information; or, In the case that the target cell is not the suitable cell due to not satisfying the cell selection criterion, the operation performed by the terminal device is predefined by the communication protocol.

In an example, the first configuration information is carried in a system message broadcast by the network device.

In an example, the first configuration information is used to configure any of the following: whether the terminal device considers the target cell as the reselection candidate cell; whether the terminal device considers the same-frequency other cells as the reselection candidate cell; whether the terminal device considers the target cell and the other cells of the same frequency as the reselection candidate cell; whether the terminal device selects the frequency point where the target cell is located is considered the lowest priority.

In an example, when the target cell is not the suitable cell due to not satisfying the cell selection criterion, the operation performed by the terminal device is valid within a first time period, and/or, the The operations performed by the terminal device are valid within the first number of reselections.

In an example, the duration of the first time period is configured by the network device through the second configuration information, or, the duration of the first time period is predefined by the communication protocol; or, the duration of the first time period is The duration is less than or equal to the first duration, the first duration is configured by the network device through the second configuration information, or the first duration is predefined by the communication protocol.

In an example, the first number of reselections is configured by the network device through the second configuration information; or, the first number of reselections is predefined by a communication protocol.

In an example, the second configuration information is carried in at least one of the following messages: a system message and an RRC release message.

In an example, when the first condition is met, the terminal device cancels the execution of: the operation performed by the terminal device when the target cell is not a suitable cell because it does not meet the cell selection criteria.

In an example, the first condition includes at least one of the following: the cell with the highest ranking has changed, and the ranking includes at least one of the following: frequency point priority ranking, R value ranking, and beam number ranking; The third configuration information of the network device, the third configuration information is used to configure the terminal device to cancel execution: the operation performed by the terminal device when the target cell does not meet the cell selection criteria and is not a suitable cell; the The system information of the above network device is updated.

In an example, the third configuration information is carried in at least one of the following messages: a system message and an RRC release message.

In an example, the network device includes a serving cell and/or the target cell.

FIG. 8 is a structural block diagram of a cell reselection device provided by an exemplary embodiment of the present disclosure. As shown in FIG. 8 , taking the device used in a network device as an example, the device 800 includes:

The sending module 810 is configured to send first configuration information to the terminal device; wherein the first configuration information is used to configure the target cell that is not a suitable cell because it does not meet the cell selection criteria, the terminal device executes operation.

In an example, the first configuration information is carried in a system message broadcast by the network device.

In an example, the first configuration information is used to configure any of the following: whether the terminal device considers the target cell as the reselection candidate cell; whether the terminal device considers the same-frequency other cells as the reselection candidate cell; whether the terminal device considers the target cell and the other cells of the same frequency as the reselection candidate cell; whether the terminal device selects the frequency point where the target cell is located is considered the lowest priority.

In an example, the sending module 810 is further configured to send second configuration information to the terminal device, where the second configuration information is used to configure the first duration and/or the first number of reselections.

In an example, the second configuration information is carried in at least one of the following messages: a system message and an RRC release message.

In an example, the sending module 810 is further configured to send third configuration information to the terminal device, where the third configuration information is used to configure the terminal device to cancel execution: instead of the operations performed by the terminal device in the case of a suitable cell.

In an example, the third configuration information is carried in at least one of the following messages: a system message and an RRC release message.

In an example, the network device includes a serving cell and/or the target cell.

FIG. 10 shows a schematic structural diagram of a communication device 1000 (which may be implemented as the above-mentioned terminal device or the above-mentioned network device) provided by an exemplary embodiment of the present disclosure. The communication device 1000 includes: a processor 1010, a receiver 1020, and a transmitter 1030 , memory 1040 and bus 1050.

The processor 1010 includes one or more processing cores, and the processor 1010 executes various functional applications and information processing by running software programs and modules.

The receiver 1020 and the transmitter 1030 can be implemented as a communication component, which can be a communication chip.

The memory 1040 is connected to the processor 1010 through a bus 1050 .

The memory 1040 may be used to store at least one instruction, and the processor 1010 is used to execute the at least one instruction, so as to implement various steps performed by the terminal device in the above method embodiments, or implement various steps performed by the network device in the above method embodiments.

In addition, the memory 1040 can be implemented by any type of volatile or non-volatile storage device or their combination, volatile or non-volatile storage devices include but not limited to: magnetic or optical disks, electrically erasable and programmable Read Only Memory (Erasable Programmable Read Only Memory, EEPROM), Erasable Programmable Read Only Memory (Erasable Programmable Read Only Memory, EPROM), Static Random Access Memory (SRAM), Read Only Memory (Read -Only Memory, ROM), magnetic memory, flash memory, programmable read-only memory (Programmable Read-Only Memory, PROM).

An exemplary embodiment of the present disclosure also provides a cell reselection system, the system includes: terminal equipment and network equipment; the terminal equipment includes the cell reselection apparatus provided in the embodiment shown in FIG. 6 , or includes such as The cell reselection device provided in the embodiment shown in FIG. 7 may include the cell reselection device provided in the embodiment shown in FIG. 9 ; the network device includes the cell reselection device provided in the embodiment shown in FIG. 8 .

An exemplary embodiment of the present disclosure also provides a computer-readable storage medium, the computer-readable storage medium stores at least one instruction, at least one program, code set or instruction set, the at least one instruction, the At least one program, the code set or instruction set is loaded and executed by the processor to implement the steps performed by the terminal device in the cell reselection method provided by the above method embodiments.

An exemplary embodiment of the present disclosure also provides a computer-readable storage medium, the computer-readable storage medium stores at least one instruction, at least one program, code set or instruction set, the at least one instruction, the At least one program, the code set or instruction set is loaded and executed by the processor to implement the steps performed by the network device in the cell reselection method provided by the above method embodiments.

It should be understood that the "plurality" mentioned herein refers to two or more than two. "And/or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently. The character "/" generally indicates that the contextual objects are an "or" relationship.

Other embodiments of the present disclosure will be readily apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. The present disclosure is intended to cover any modification, use or adaptation of the present disclosure. These modifications, uses or adaptations follow the general principles of the present disclosure and include common knowledge or conventional technical means in the technical field not disclosed in the present disclosure. . The specification and examples are to be considered exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It should be understood that the present disclosure is not limited to the precise constructions which have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (19)

A cell reselection method, characterized in that it is applied to a terminal device, and the method includes: determining that the target cell does not meet cell selection criteria; It is determined that the target cell is not a suitable cell. The method according to claim 1, further comprising: not using the target cell as a candidate cell for reselection; or, The target cell and other cells of the same frequency are not used as reselection candidate cells, wherein the other cells of the same frequency are other cells on the frequency point where the target cell is located; or, Setting the priority of the frequency point where the target cell is located to the lowest priority. The method according to claim 2, further comprising: A system message broadcast by a network device is received, where the system message includes first configuration information, and the first configuration information is used for cell reselection. The method according to claim 3, wherein the first configuration information is used to configure any of the following: taking the target cell and/or the other cells of the same frequency as the reselection candidate cell; The priority of the frequency point where the target cell is located is taken as the lowest priority. The method according to any one of claims 2 to 4, wherein the terminal device reselects a cell within a first time period, and/or, the terminal device reselects a cell within a first reselection times . The method according to claim 5, wherein the method further comprises: receiving second configuration information sent by the network device, where the second configuration information includes at least one of the following: a first duration, the duration of the first time period is less than or equal to the first duration; the number of first re-elections; The duration of the first time period. The method according to claim 5, characterized in that, The duration of the first time period is predefined by the communication protocol; or, The duration of the first time period is less than or equal to the first duration, and the first duration is predefined by the communication protocol. The method according to claim 5 or 7, characterized in that the first number of reselections is predefined by a communication protocol. The method according to claim 6, wherein the second configuration information is carried in at least one of the following messages: a system message and a radio resource control (RRC) release message. The method according to any one of claims 3, 4, 6, and 9, wherein the network device includes a serving cell and/or the target cell. A cell reselection method, characterized in that it is applied to network equipment, the method comprising: Broadcasting a system message to the terminal device, where the system message includes first configuration information, and the first configuration information is used to configure the terminal device to perform cell reselection when the target cell does not meet the cell selection criteria and is not a suitable cell. The method according to claim 11, wherein the first configuration information is used to configure any of the following: taking the target cell and/or the other cells of the same frequency as the reselection candidate cell; The priority of the frequency point where the target cell is located is taken as the lowest priority. The method according to claim 11 or 12, characterized in that the method further comprises: Sending second configuration information to the terminal device, where the second configuration information includes at least one of the following: first duration; the number of first re-elections; The length of the first time period. The method according to claim 13, wherein the second configuration information is carried in at least one of the following messages: a system message and a radio resource control (RRC) release message. A cell reselection device, characterized in that the device comprises: A determining module, configured to: determine that the target cell does not meet the cell selection criteria; determine that the target cell is not a suitable cell. A cell reselection device, characterized in that the device comprises: A sending module, configured to broadcast a system message to the terminal device, where the system message includes first configuration information, and the first configuration information is used to configure the terminal device to perform cell reconfiguration when the target cell does not meet the cell selection criteria and is not a suitable cell select. A terminal device, characterized in that the terminal device includes: processor; a transceiver connected to the processor; Wherein, the processor is configured to load and execute executable instructions to implement the cell reselection method according to any one of claims 1 to 10. A network device, characterized in that the network device includes: processor; a transceiver connected to the processor; Wherein, the processor is configured to load and execute executable instructions to implement the cell reselection method according to any one of claims 11 to 14. A computer-readable storage medium, characterized in that at least one instruction, at least one program, code set or instruction set is stored in the computer-readable storage medium, and the at least one instruction, the at least one program, the The code set or the instruction set is loaded and executed by the processor to implement the cell reselection method according to any one of claims 1 to 14.

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