CN115052320B - A conditional switching method, device and storage medium - Google Patents

Abstract

The present invention discloses a conditional switching method, device and storage medium, the method comprising: a first base station determines the priority of at least one candidate cell; the priority of each candidate cell in the at least one candidate cell is determined based on measurement information from a terminal and characteristic information of each candidate cell; the priority of the at least one candidate cell is sent to the terminal; the priority of the at least one candidate cell is used to instruct the terminal to perform conditional switching.

Description

A conditional switching method, device and storage medium

Technical Field

The present invention relates to the field of communications, and in particular to a conditional switching method, device and storage medium.

Background Art

In the related scheme, the conditional handover (CHO) process is as follows: after knowing the terminal status through the information reported by the terminal after measurement, the target side base station prepares the resources for conditional handover in advance (including the terminal's radio network temporary identification (RNTI, Radio Network Temporary Identity) and physical random access channel (PRACH, Physical Random Access Channel) resources) to enable the terminal to switch immediately after meeting the conditions, eliminating the handover preparation delay and reducing the overall handover delay.

However, the above method cannot distinguish the target cells of CHO. In the same-frequency scenario or when the frequency priority is similar, the terminal selects the cell access based on the reference signal received power (RSRP) principle. When the access cell does not meet the terminal requirements, it will cause the terminal to drop the line or switch frequently, affecting the terminal performance and connectivity.

Summary of the invention

In view of this, the main purpose of the present invention is to provide a conditional switching method, device and storage medium.

To achieve the above object, the technical solution of the present invention is achieved as follows:

An embodiment of the present invention provides a conditional switching method, which is applied to a first base station. The method includes:

Determine a priority of at least one candidate cell; the priority of each candidate cell in the at least one candidate cell is determined based on measurement information from the terminal and characteristic information of each candidate cell;

The priority of the at least one candidate cell is sent to the terminal; the priority of the at least one candidate cell is used to instruct the terminal to perform conditional switching.

In the above solution, corresponding to the heterodyne condition of the at least one candidate cell, determining the priority of the at least one candidate cell includes:

The priority of each candidate cell is determined according to the frequency priority of the terminal and the frequency of each candidate cell; the frequency priority indicates information on the order of priorities of the frequencies in which the terminal can reside.

In the above solution, corresponding to the situation where the at least one candidate cell has the same frequency, determining the priority of the at least one candidate cell includes:

The priority of each candidate cell is determined according to the absolute value or cumulative change value of the RSRP of each candidate cell.

In the above solution, the method further includes: determining a cumulative value of a change in RSRP of each of the candidate cells;

The determining the cumulative value of the RSRP change of each candidate cell includes:

In response to the first RSRP increasing compared to the second RSRP, the accumulated value of the RSRP change is increased by one; the corresponding RSRP is obtained by the terminal detecting the corresponding candidate cell; the second RSRP is the RSRP obtained by the previous detection of the first RSRP;

In response to the situation that the first RSRP is lower than the second RSRP or the first RSRP is not received, the accumulated value of the RSRP change is reduced by one.

In the above solution, determining the priority of at least one candidate cell includes:

The priority of each candidate cell is determined according to the correlation between each candidate cell and the capability of the terminal.

In the above solution, the sending the priority of at least one candidate cell to the terminal includes:

Sending a reconfiguration message to the terminal; the reconfiguration message at least includes: a priority of at least one candidate cell.

In the above solution, the characteristic information of the candidate cell includes at least one of the following: the capability of the candidate cell and the frequency of the candidate cell;

The measurement information of the terminal includes at least one of the following: capability of the terminal, frequency of the terminal, RSRP of a corresponding candidate cell detected by the terminal, and frequency priority of the terminal.

An embodiment of the present invention provides a conditional switching method, which is applied to a terminal, and the method includes:

receiving a priority of at least one candidate cell from a base station; the priority of each candidate cell in the at least one candidate cell is determined based on measurement information from a terminal and characteristic information of each candidate cell; the priority of the at least one candidate cell is used to instruct the terminal to perform conditional switching;

The target candidate cell is determined according to the priority of the at least one candidate cell.

In the above solution, the method further includes: sending measurement information of the terminal to the first base station;

The measurement information of the terminal includes at least one of the following: capability of the terminal, frequency of the terminal, RSRP of a corresponding candidate cell detected by the terminal, and frequency priority of the terminal.

In the above solution, the characteristic information of the candidate cell includes at least one of the following: the capability of the candidate cell and the frequency of the candidate cell.

In the above solution, the receiving the priority of at least one candidate cell from the base station includes:

A reconfiguration message is received from a base station; the reconfiguration message includes at least: a priority of at least one candidate cell.

An embodiment of the present invention provides a conditional switching device, the device comprising:

A first processing module, configured to determine a priority of at least one candidate cell; the priority of each candidate cell in the at least one candidate cell is determined based on measurement information from a terminal and characteristic information of each candidate cell;

The first communication module is used to send the priority of the at least one candidate cell to the terminal; the priority of the at least one candidate cell is used to instruct the terminal to perform conditional switching.

In the above scheme, corresponding to the heterodyne situation of at least one candidate cell, the first processing module is used to determine the priority of each candidate cell according to the frequency priority of the terminal and the frequency of each candidate cell; the frequency priority indicates the information of sorting the frequencies where the terminal can reside according to priority.

In the above scheme, corresponding to the situation where the at least one candidate cell is co-frequency, the first processing module is used to determine the priority of each candidate cell according to the absolute value or cumulative change value of the RSRP of each candidate cell.

In the above solution, the first processing module is further used to determine the cumulative value of the RSRP change of each candidate cell;

The first processing module is specifically used to increase the accumulated value of the change of the RSRP by one in response to the increase of the first RSRP compared to the second RSRP; the corresponding RSRP is obtained by the terminal detecting the corresponding candidate cell; the second RSRP is the RSRP obtained by the previous detection of the first RSRP;

In response to the situation that the first RSRP is lower than the second RSRP or the first RSRP is not received, the accumulated value of the RSRP change is reduced by one.

In the above solution, the first processing module is used to determine the priority of each candidate cell according to the capability correlation between each candidate cell and the terminal.

In the above solution, the first communication module is used to send a reconfiguration message to the terminal; the reconfiguration message at least includes: the priority of at least one candidate cell.

In the above solution, the characteristic information of the candidate cell includes at least one of the following: the capability of the candidate cell and the frequency of the candidate cell;

The measurement information of the terminal includes at least one of the following: capability of the terminal, frequency of the terminal, RSRP of a corresponding candidate cell detected by the terminal, and frequency priority of the terminal.

An embodiment of the present invention provides a conditional switching device, the device comprising:

a second communication module, configured to receive a priority of at least one candidate cell from a base station; the priority of each candidate cell in the at least one candidate cell is determined based on measurement information from a terminal and characteristic information of each candidate cell; the priority of the at least one candidate cell is used to instruct the terminal to perform conditional switching;

The second processing module is configured to determine a target candidate cell according to the priority of the at least one candidate cell.

In the above solution, the second communication module is further used to send the measurement information of the terminal to the first base station;

The measurement information of the terminal includes at least one of the following: capability of the terminal, frequency of the terminal, RSRP of a corresponding candidate cell detected by the terminal, and frequency priority of the terminal.

In the above solution, the characteristic information of the candidate cell includes at least one of the following: the capability of the candidate cell and the frequency of the candidate cell.

In the above solution, the second communication module is used to receive a reconfiguration message from a base station; the reconfiguration message at least includes: a priority of at least one candidate cell.

An embodiment of the present invention provides a conditional switching device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the steps of any one of the conditional switching methods described above on the first base station side are implemented; or,

When the processor executes the program, the steps of any one of the conditional switching methods described above on the terminal side are implemented.

The embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of any one of the conditional switching methods described above on the first base station side are implemented; or,

When the computer program is executed by the processor, the steps of any one of the conditional switching methods described above on the terminal side are implemented.

A conditional switching method, device and storage medium provided by an embodiment of the present invention include: a first base station determines the priority of at least one candidate cell; the priority of each candidate cell in the at least one candidate cell is determined based on measurement information from a terminal and characteristic information of each candidate cell; the priority of the at least one candidate cell is sent to the terminal; the priority of the at least one candidate cell is used to instruct the terminal to perform conditional switching; accordingly, the terminal receives the priority of at least one candidate cell from the base station; the priority of each candidate cell in the at least one candidate cell is determined based on measurement information from the terminal and characteristic information of each candidate cell; the priority of the at least one candidate cell is used to instruct the terminal to perform conditional switching; and the target candidate cell is determined according to the priority of the at least one candidate cell. In this way, by marking the priority of the candidate cell in the conditional switching scenario to guide the terminal access order, the failure rate of conditional switching and the probability of ping-pong switching are reduced, and the switching performance of conditional switching is improved.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a conditional switching process;

FIG2 is a schematic flow chart of a conditional switching method provided by an embodiment of the present invention;

FIG3 is a schematic flow chart of another conditional switching method provided by an embodiment of the present invention;

FIG4 is a schematic flow chart of another conditional switching method provided in an embodiment of the present invention;

FIG5 is a schematic diagram of the structure of a conditional switching device provided by an embodiment of the present invention;

FIG6 is a schematic diagram of the structure of another condition switching device provided by an embodiment of the present invention;

FIG. 7 is a schematic diagram of the structure of yet another conditional switching device provided in an embodiment of the present invention.

DETAILED DESCRIPTION

The present invention will be further described in detail in conjunction with the embodiments, and the related technology will be described first.

In the related scheme, the conditional handover (CHO) scheme of Data Forwarding includes: the terminal reports the measurement report, the base station makes a conditional handover decision, sends a handover request to all cells that meet the conditions in the measurement report, and all cells that receive all handover requests perform handover admission operations and reply that the handover is ready. The source base station sends a reconfiguration message, which includes: a conditional reconfiguration message, which may include relevant information of the target cell, such as RRC reconfiguration (RRCreconfigure) and a high-speed indication (highspeedflag). After receiving the reconfiguration, the terminal feedbacks that the reconfiguration is complete. When the CHO condition is met, it detaches from the source base station, synchronizes with the target station, and starts data transmission.

FIG1 is a schematic diagram of a conditional switching process; as shown in FIG1 , the conditional switching process includes:

1. The terminal (UE) performs measurements and reports;

2. The source gNB executes the CHO decision.

3. The source gNB sends a HANDOVER REQUEST to the target gNB and to other potential target gNB(s).

4. The target base station and other possible target base stations perform admission control;

5. The target base station and other possible target base stations send a confirmation request confirmation message (HANDOVER REQUESTACRNOWLEDGE);

6. The source base station sends a reconfiguration message (RRCReconfiguratior) to the terminal;

7. The terminal replies with reconfiguration information (RRCReconfgurationComplete);

And, the terminal evaluates the CHO state; the terminal switches from the old cell to the new cell.

In the above scheme, the terminal measures and reports, including measurement events and neighboring cell measurements, to obtain the terminal status in advance, and the target side base station prepares switching resources (including UE RNTI and PRACH resources) in advance, so that the terminal can switch immediately after meeting the conditions, eliminating the switching preparation delay and reducing the overall switching delay.

However, as mentioned above, the CHO target cells cannot be distinguished. In the same-frequency scenario or when the frequency priority is similar, the terminal selects the cell to access based on the RSRP principle. When the access cell does not meet the terminal requirements, such as a high-speed terminal accessing an ordinary cell, the terminal will be disconnected or frequently switched, affecting the terminal performance and connectivity.

Based on this, the method provided by an embodiment of the present invention is as follows: the first base station determines the priority of at least one candidate cell; the priority of each candidate cell in the at least one candidate cell is determined based on the measurement information from the terminal and the characteristic information of each candidate cell; the priority of the at least one candidate cell is sent to the terminal; the priority of the at least one candidate cell is used to instruct the terminal to perform conditional switching; accordingly, the terminal receives the priority of at least one candidate cell from the base station; the priority of each candidate cell in the at least one candidate cell is determined based on the measurement information from the terminal and the characteristic information of each candidate cell; the priority of the at least one candidate cell is used to instruct the terminal to perform conditional switching; and the target candidate cell is determined according to the priority of the at least one candidate cell.

The present invention will be further described in detail below in conjunction with the embodiments.

FIG2 is a flow chart of a conditional switching method provided by an embodiment of the present invention; as shown in FIG2 , it is applied to a first base station, where the first base station is a source base station (Source gNB), and may also specifically refer to a current resident cell (current serving cell) of a terminal; the method includes:

Step 201: Determine the priority of at least one candidate cell; the priority of each candidate cell in the at least one candidate cell is determined based on measurement information from a terminal and characteristic information of each candidate cell;

Step 202: Send the priority of the at least one candidate cell to the terminal; the priority of the at least one candidate cell is used to instruct the terminal to perform conditional switching.

The candidate cell may be determined based on a neighboring cell of a cell where the terminal currently resides.

In some embodiments, corresponding to the situation that the at least one candidate cell has different frequencies, determining the priority of the at least one candidate cell includes:

Determining the priority of each candidate cell according to the frequency priority of the terminal and the frequency of each candidate cell;

The frequency priority indicates information on the frequencies on which the terminal can reside, sorted according to priority.

The frequency priority of the terminal may be pre-set and stored in the terminal;

The frequency priority of the terminal may include: at least one frequency and a priority corresponding to each frequency.

In some embodiments, corresponding to the co-frequency situation of the at least one candidate cell, determining the priority of the at least one candidate cell includes:

The priority of each candidate cell is determined according to the absolute value or cumulative change value of the RSRP of each candidate cell.

To achieve the above-mentioned determination of the priority of each candidate cell according to the absolute value or cumulative value of the change of RSRP, the method further includes: determining the cumulative value of the change of RSRP of each candidate cell;

Specifically, determining the cumulative value of the RSRP change of each candidate cell includes:

In response to the first RSRP increasing compared to the second RSRP, the accumulated value of the RSRP change is increased by one; the corresponding RSRP is obtained by the terminal detecting the corresponding candidate cell; the second RSRP is the RSRP obtained by the previous detection of the first RSRP;

In response to the situation that the first RSRP is lower than the second RSRP or the first RSRP is not received, the accumulated value of the RSRP change is reduced by one.

Here, the absolute values of the first RSRP and the second RSRP may be taken first, and then the difference between the two may be determined;

The first RSRP and the second RSRP may also be directly compared to determine the difference between the two.

Specifically, the priority of the candidate neighboring cell is obtained by the absolute value or cumulative change value of the RSRP reported by the terminal. For example, if the value of RSRP measured this time (i.e., the first RSRP mentioned above) is higher than the value measured last time (i.e., the second RSRP mentioned above), the cumulative change value of RSRP is increased by 1. If it is lower than the last time or not reported, the cumulative change value of RSRP is reduced by 1.

This is because RSRP can reflect the distance between the terminal and the neighboring cell, that is, the terminal's running direction can be learned through the accumulated value of RSRP changes. An increase means that the terminal moves toward the neighboring cell (the corresponding accumulated value of RSRP changes is increased by 1); a decrease or no report means that the terminal is far away from the neighboring cell (the corresponding accumulated value of RSRP changes is reduced by 1).

In some embodiments, determining the priority of at least one candidate cell includes:

The priority of each candidate cell is determined according to the capability correlation (or status correlation) between each candidate cell and the terminal.

For example, if the terminal is a high-speed terminal, the priority of the high-speed candidate cell is configured as high, and the priority of the low-speed candidate cell is configured as low;

On the contrary, if the terminal is not a high-speed terminal, the priority of the high-speed candidate cell is configured as low, and the priority of the low-speed candidate cell is configured as high.

Specifically, the capability correlation between each candidate cell and the terminal can be pre-determined. If the capability of the candidate cell does not match that of the terminal, it is marked as a low priority. If the capability of the candidate cell matches that of the terminal, the candidate cell (the number of candidate cells is at least two at this time) is further determined to be co-frequency or hetero-frequency. For hetero-frequency candidate cells, the priority of each candidate cell is determined based on the frequency priority of the terminal and the frequency of each candidate cell. For co-frequency candidate cells, the priority of each candidate cell is further determined based on the absolute value or cumulative value of the RSRP of each candidate cell.

In some embodiments, the sending the priority of at least one candidate cell to the terminal includes:

Sending a reconfiguration message to the terminal; the reconfiguration message at least includes: a priority of at least one candidate cell.

Here, in order to inform the terminal of the priority of at least one candidate cell, a condition may be added to the reconfiguration message (conditionalReconfiguration IE): reconfiguration priority (conditionalReconfiguration priority), and the priority of each candidate neighboring cell that has completed handover preparation is represented.

In this way, the terminal can select the access order according to the priority carried in the reconfiguration message, for example, first access the candidate cell with a high priority, and then access the candidate cell with the next priority after the access fails, and so on.

In some embodiments, the characteristic information of the candidate cell includes at least one of the following: capability of the candidate cell, frequency of the candidate cell;

The measurement information of the terminal includes at least one of the following: capability of the terminal, frequency of the terminal, RSRP of a corresponding candidate cell detected by the terminal, and frequency priority of the terminal.

FIG3 is a flow chart of a conditional switching method provided by an embodiment of the present invention; as shown in FIG3 , the method is applied to a terminal, such as a mobile phone, a tablet computer, a laptop computer, a PDA, a wearable device (such as a smart watch, a smart bracelet, a pedometer), etc. The method includes:

Step 301: Receive the priority of at least one candidate cell from a base station; the priority of each candidate cell in the at least one candidate cell is determined based on measurement information from a terminal and characteristic information of each candidate cell; the priority of the at least one candidate cell is used to instruct the terminal to perform conditional switching;

Step 302: Determine a target candidate cell according to the priority of the at least one candidate cell.

In some embodiments, the method further comprises: sending measurement information of the terminal to the first base station;

The measurement information of the terminal includes at least one of the following: capability of the terminal, frequency of the terminal, RSRP of a corresponding candidate cell detected by the terminal, and frequency priority of the terminal.

In some embodiments, the characteristic information of the candidate cell includes at least one of the following: capability of the candidate cell and frequency of the candidate cell.

In some embodiments, the receiving the priority of at least one candidate cell from the base station comprises:

A reconfiguration message is received from a base station; the reconfiguration message includes at least: a priority of at least one candidate cell.

The method shown in Figures 2 and 3 calculates the priority of the target base station by the source base station according to the characteristics of the target base station and the measurement information reported by the terminal, and adds a conditional switching priority in the reconfiguration message (conditionalReconfiguration IE), corresponding to each neighboring area, distinguishes its synchronization priority, and guides the user access order.

The embodiment of the present invention also provides a method for implementing conditional switching, including:

Step 1: Determine the priority of at least one candidate cell (the candidate cell may be a neighboring cell of the cell where the terminal is currently stationed);

Specifically, the priority of the candidate cell is determined and marked in combination with multiple states, and the determination method includes at least one of the following:

Judgment method 1: Determine the priority based on whether the capabilities of the terminal and the base station match;

For example, if the terminal is a high-speed terminal, the priority of the high-speed candidate cell is configured as high, and the priority of the low-speed candidate cell is configured as low;

On the contrary, if the terminal is not a high-speed terminal, the priority of the high-speed candidate cell is configured as low, and the priority of the low-speed candidate cell is configured as high.

Judgment method 2: If the frequencies of the candidate cells are different, the priority of the candidate neighboring cells is obtained according to the frequency priority;

Judgment method 2 can be applied to heterofrequency matching cells, that is, if the candidate cell is a heterofrequency cell of the terminal, the priority of the candidate cell is determined according to the frequency priority of the terminal.

Here, the priority of each candidate cell is determined according to the frequency priority of the terminal and the frequency of each candidate cell; the frequency priority indicates information on the frequencies in which the terminal can reside, sorted according to priority.

Judgment method 3: If the frequencies of the candidate cells are the same (i.e., the frequency priorities are the same), the priority of the candidate neighboring cells is determined according to the RSRP change;

Here, the priority of candidate neighboring cells is determined according to the RSRP change, including:

The priority is calculated cumulatively based on the neighboring cell RSRP information continuously reported by the terminal; finally, the neighboring cell priority is sorted by the absolute value or cumulative change value of RSRP.

For example, if the RSRP measured this time is higher than the last time, the accumulated value of RSRP change is increased by 1. If it is lower than the last time or not reported, the accumulated value of RSRP change is reduced by 1. The running direction of the terminal can be learned through the accumulated value of RSRP change, and the accumulated value of RSRP change is used as the basis for determining priority.

To implement the above solution, a conditional switching priority is added; specifically, a conditional reconfiguration priority is added in the reconfiguration message (conditionalReconfiguration IE) to represent the priority of each candidate neighboring cell that is ready to switch.

Correspondingly, after receiving the reconfiguration message, the terminal selects the access order according to the priority of each candidate cell carried in the reconfiguration message, first accesses the high priority cell, and then accesses the next priority cell if the access fails.

FIG4 is a flow chart of a method for determining neighboring cell priority provided by an embodiment of the present invention; as shown in FIG4 , the terminal first reports the measurement information of the neighboring cell (i.e., the candidate cell mentioned above) and its own status, and the serving cell (i.e., the current resident cell of the terminal) sends a switching request to the neighboring cell in the surrounding measurement report to obtain a neighboring cell switching confirmation.

The serving cell determines whether the neighboring cells match the terminal scenarios or whether the types match; for example, it determines whether they are all in high-speed state or all in low-speed state, and marks the neighboring cells that match the terminal state as high priority, otherwise they are marked as low priority.

After the status is matched, for the matched neighboring cells (when the number of matched neighboring cells is at least two), it is further evaluated whether the neighboring cells are co-frequency or different-frequency. If the neighboring cells are different-frequency, the neighboring cell priority is marked according to the frequency priority; if the neighboring cells are co-frequency, the position relationship between the terminal and the neighboring cell is determined by the absolute value or cumulative value of RSRP to confirm the priority of the co-frequency neighboring cells.

The serving cell sends a reconfiguration message to the terminal to guide the terminal's behavior.

If the serving cell reconfigures the neighboring cell priority multiple times, the most recent reconfiguration is selected as the neighboring cell priority to follow the changes in the terminal location.

Regarding marking the neighboring cell priority by frequency priority, the method shown in FIG. 2 may be used to determine the priority of each candidate cell according to the frequency priority of the terminal and the frequency of each candidate cell; details will not be given here.

Regarding obtaining and judging the positional relationship between the terminal and the neighboring cell by the absolute value or cumulative value of the RSRP, the priority of each candidate cell can be determined according to the absolute value or cumulative value of the RSRP of each candidate cell in the method shown in Figure 2; it will not be repeated here.

FIG5 is a schematic diagram of the structure of a conditional switching device provided by an embodiment of the present invention; as shown in FIG5 , the device is applied to a network device, and includes:

A first processing module, configured to determine a priority of at least one candidate cell; the priority of each candidate cell in the at least one candidate cell is determined based on measurement information from a terminal and characteristic information of each candidate cell;

The first communication module is used to send the priority of the at least one candidate cell to the terminal; the priority of the at least one candidate cell is used to instruct the terminal to perform conditional switching.

Specifically, corresponding to the situation where at least one candidate cell has different frequencies, the first processing module is specifically used to determine the priority of each candidate cell based on the frequency priority of the terminal and the frequency of each candidate cell; the frequency priority indicates information on the frequencies where the terminal can reside, sorted by priority.

Specifically, corresponding to the situation that the at least one candidate cell is in the same frequency, the first processing module is specifically used to determine the priority of each candidate cell according to the absolute value or cumulative value of the RSRP of each candidate cell.

Specifically, the first processing module is used to determine the cumulative value of the RSRP of each candidate cell;

The first processing module is specifically used to increase the accumulated value of the change of the RSRP by one in response to the increase of the first RSRP compared to the second RSRP; the corresponding RSRP is obtained by the terminal detecting the corresponding candidate cell; the second RSRP is the RSRP obtained by the previous detection of the first RSRP;

In response to the situation that the first RSRP is lower than the second RSRP or the first RSRP is not received, the accumulated value of the RSRP change is reduced by one.

Specifically, the first processing module is used to determine the priority of each candidate cell according to the capability correlation between each candidate cell and the terminal.

Specifically, the first communication module is used to send a reconfiguration message to the terminal; the reconfiguration message at least includes: a priority of at least one candidate cell.

Specifically, the characteristic information of the candidate cell includes at least one of the following: capability of the candidate cell and frequency of the candidate cell;

The measurement information of the terminal includes at least one of the following: capability of the terminal, frequency of the terminal, RSRP of a corresponding candidate cell detected by the terminal, and frequency priority of the terminal.

It should be noted that: the conditional switching device provided in the above embodiment only uses the division of the above program modules as an example when implementing the corresponding conditional switching method. In actual applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the server is divided into different program modules to complete all or part of the processing described above. In addition, the device provided in the above embodiment and the embodiment of the corresponding method belong to the same concept, and its specific implementation process is detailed in the method embodiment, which will not be repeated here.

FIG6 is a schematic diagram of the structure of a conditional switching device provided by an embodiment of the present invention; as shown in FIG6 , applied to a terminal, the device includes:

a second communication module, configured to receive a priority of at least one candidate cell from a base station; the priority of each candidate cell in the at least one candidate cell is determined based on measurement information from a terminal and characteristic information of each candidate cell; the priority of the at least one candidate cell is used to instruct the terminal to perform conditional switching;

The second processing module is configured to determine a target candidate cell according to the priority of the at least one candidate cell.

Specifically, the second communication module is further used to send the measurement information of the terminal to the first base station;

The measurement information of the terminal includes at least one of the following: capability of the terminal, frequency of the terminal, RSRP of a corresponding candidate cell detected by the terminal, and frequency priority of the terminal.

Specifically, the characteristic information of the candidate cell includes at least one of the following: capability of the candidate cell and frequency of the candidate cell.

Specifically, the second communication module is used to receive a reconfiguration message from a base station; the reconfiguration message at least includes: a priority of at least one candidate cell.

It should be noted that: the conditional switching device provided in the above embodiment only uses the division of the above program modules as an example when implementing the corresponding conditional switching method. In actual applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the server is divided into different program modules to complete all or part of the processing described above. In addition, the device provided in the above embodiment and the embodiment of the corresponding method belong to the same concept, and its specific implementation process is detailed in the method embodiment, which will not be repeated here.

FIG7 is a schematic diagram of the structure of another conditional switching device provided by an embodiment of the present invention. As shown in FIG7 , the device 70 includes: a processor 701 and a memory 702 for storing a computer program that can be run on the processor;

When the device is applied to a network device, the processor 701 is used to run the computer program to perform: determining the priority of at least one candidate cell; determining the priority of each candidate cell in the at least one candidate cell based on the measurement information from the terminal and the characteristic information of each candidate cell; sending the priority of the at least one candidate cell to the terminal; the priority of the at least one candidate cell is used to instruct the terminal to perform conditional switching. Specifically, the network device can execute the method shown in Figure 2, which belongs to the same concept as the conditional switching method embodiment shown in Figure 2. The specific implementation process is detailed in the method embodiment, which will not be repeated here.

When the device is applied to a terminal, the processor 701 is used to execute the computer program to: receive the priority of at least one candidate cell from a base station; determine the priority of each candidate cell in the at least one candidate cell based on the measurement information from the terminal and the characteristic information of each candidate cell; the priority of the at least one candidate cell is used to instruct the terminal to perform conditional switching; determine the target candidate cell according to the priority of the at least one candidate cell. Specifically, the terminal can execute the method shown in Figure 3, which belongs to the same concept as the method embodiment shown in Figure 3. The specific implementation process is detailed in the method embodiment, which will not be repeated here.

In actual application, the device 70 may further include: at least one network interface 703. The various components in the device 70 are coupled together through a bus system 704. It can be understood that the bus system 704 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 704 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, various buses are marked as bus systems 704 in Figure 7. Among them, the number of processors 701 can be at least one. The network interface 703 is used for wired or wireless communication between the device 70 and other devices.

The memory 702 in the embodiment of the present invention is used to store various types of data to support the operation of the device 70 .

The method disclosed in the above embodiment of the present invention can be applied to the processor 701, or implemented by the processor 701. The processor 701 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit in the processor 701 or the instruction in the form of software. The above processor 701 may be a general processor, a digital signal processor (DSP, DiGital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The processor 701 can implement or execute the methods, steps and logic block diagrams disclosed in the embodiment of the present invention. The general processor may be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiment of the present invention, it can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium, which is located in the memory 702. The processor 701 reads the information in the memory 702 and completes the steps of the above method in combination with its hardware.

In an exemplary embodiment, the device 70 can be implemented by one or more application specific integrated circuits (ASIC), DSP, programmable logic device (PLD), complex programmable logic device (CPLD), field programmable gate array (FPGA), general processor, controller, microcontroller (MCU), microprocessor, or other electronic components to execute the aforementioned method.

An embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon;

When the computer-readable storage medium is applied to a network device, when the computer program is executed by the processor, the following are performed: determining the priority of at least one candidate cell; determining the priority of each candidate cell in the at least one candidate cell based on the measurement information from the terminal and the characteristic information of each candidate cell; sending the priority of the at least one candidate cell to the terminal; the priority of the at least one candidate cell is used to instruct the terminal to perform conditional switching. Specifically, the computer-readable storage medium can execute the method shown in FIG2, which is of the same concept as the conditional switching method embodiment shown in FIG2. The specific implementation process is detailed in the method embodiment, which will not be repeated here.

When the computer-readable storage medium is applied to a terminal, when the computer program is executed by a processor, the following are performed: receiving the priority of at least one candidate cell from a base station; determining the priority of each candidate cell in the at least one candidate cell based on measurement information from the terminal and characteristic information of each candidate cell; the priority of the at least one candidate cell is used to instruct the terminal to perform conditional switching; determining the target candidate cell according to the priority of the at least one candidate cell. Specifically, the computer-readable storage medium can execute the method shown in FIG3 , which is of the same concept as the conditional switching method embodiment shown in FIG3 . The specific implementation process is detailed in the method embodiment, which will not be repeated here.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

In addition, all functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

A person skilled in the art can understand that: all or part of the steps of implementing the above method embodiment can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above method embodiment; and the aforementioned storage medium includes: mobile storage devices, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), disks or optical disks, etc. Various media that can store program codes.

Alternatively, if the above-mentioned integrated unit of the present invention is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present invention can be essentially or partly reflected in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM, magnetic disks or optical disks.

It should be noted that: "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

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

The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (12)

1. A conditional handover method, characterized in that it is applied to a first base station, the method comprising: Determine the priority of at least one candidate cell; the priority of each candidate cell in the at least one candidate cell is determined based on measurement information from the terminal and characteristic information of each candidate cell; wherein, the capability correlation between each candidate cell and the terminal is pre-determined, and if the capability of the candidate cell matches that of the terminal, the priority of at least one candidate cell is determined based on the hetero-frequency or co-frequency situation of the at least one candidate cell; A reconfiguration message is sent to the terminal; the reconfiguration message includes at least: a priority of at least one candidate cell; the priority of at least one candidate cell is used to instruct the terminal to perform conditional switching. 2. The method according to claim 1, characterized in that, corresponding to the heterofrequency situation of the at least one candidate cell, the determining the priority of the at least one candidate cell based on the heterofrequency or co-frequency situation of the at least one candidate cell comprises: The priority of each candidate cell is determined according to the frequency priority of the terminal and the frequency of each candidate cell; the frequency priority indicates information on the order of priorities of the frequencies in which the terminal can reside. 3. The method according to claim 1, characterized in that, corresponding to the situation that the at least one candidate cell is in the same frequency, the determining the priority of the at least one candidate cell based on the different frequency or same frequency situation of the at least one candidate cell comprises: The priority of each candidate cell is determined according to the absolute value or the cumulative value of the reference signal received power RSRP of each candidate cell. 4. The method according to claim 3, characterized in that the method further comprises: determining a cumulative value of a change in RSRP of each of the candidate cells; The determining the cumulative value of the RSRP change of each candidate cell includes: In response to the first RSRP increasing compared to the second RSRP, the accumulated value of the RSRP change is increased by one; the corresponding RSRP is obtained by the terminal detecting the corresponding candidate cell; the second RSRP is the RSRP obtained by the previous detection of the first RSRP; In response to the situation that the first RSRP is lower than the second RSRP or the first RSRP is not received, the accumulated value of the RSRP change is reduced by one. 5. The method according to claim 1, characterized in that the characteristic information of the candidate cell includes at least one of the following: the capability of the candidate cell, the frequency of the candidate cell; The measurement information of the terminal includes at least one of the following: capability of the terminal, frequency of the terminal, RSRP of a corresponding candidate cell detected by the terminal, and frequency priority of the terminal. 6. A conditional switching method, characterized in that it is applied to a terminal, and the method comprises: Receive a reconfiguration message from a base station; the reconfiguration message includes at least: a priority of at least one candidate cell; the priority of each candidate cell in the at least one candidate cell is determined based on measurement information from the terminal and characteristic information of each candidate cell; wherein the priority of the at least one candidate cell is determined by the base station in advance based on the capability correlation between each candidate cell and the terminal, and if the capability of the candidate cell matches that of the terminal, the priority is determined based on the hetero-frequency or co-frequency situation of the at least one candidate cell; the priority of the at least one candidate cell is used to instruct the terminal to perform conditional switching; The target candidate cell is determined according to the priority of the at least one candidate cell. 7. The method according to claim 6, characterized in that the method further comprises: sending the measurement information of the terminal to the first base station; The measurement information of the terminal includes at least one of the following: capability of the terminal, frequency of the terminal, RSRP of a corresponding candidate cell detected by the terminal, and frequency priority of the terminal. 8. The method according to claim 6 is characterized in that the characteristic information of the candidate cell includes at least one of the following: capability of the candidate cell and frequency of the candidate cell. 9. A conditional switching device, characterized in that the device comprises: A first processing module is used to determine the priority of at least one candidate cell; the priority of each candidate cell in the at least one candidate cell is determined based on measurement information from the terminal and characteristic information of each candidate cell; wherein, the capability correlation between each candidate cell and the terminal is pre-determined, and if the capability of the candidate cell matches that of the terminal, the priority of at least one candidate cell is determined based on the hetero-frequency or co-frequency situation of the at least one candidate cell; The first communication module is used to send a reconfiguration message to the terminal; the reconfiguration message at least includes: the priority of at least one candidate cell; the priority of at least one candidate cell is used to instruct the terminal to perform conditional switching. 10. A conditional switching device, characterized in that the device comprises: a second communication module, configured to receive a reconfiguration message from a base station; the reconfiguration message at least comprising: a priority of at least one candidate cell; the priority of each candidate cell in the at least one candidate cell is determined based on measurement information from the terminal and characteristic information of each candidate cell, wherein the priority of at least one candidate cell is determined by the base station in advance by the relevance of the capability of each candidate cell to the terminal, and if the capability of the candidate cell matches that of the terminal, the priority of at least one candidate cell is determined based on the hetero-frequency or co-frequency situation of the at least one candidate cell; the priority of the at least one candidate cell is used to instruct the terminal to perform conditional switching; The second processing module is configured to determine a target candidate cell according to the priority of the at least one candidate cell. 11. A conditional switching device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method according to any one of claims 1 to 5 when executing the program; or When the processor executes the program, the steps of the method according to any one of claims 6 to 8 are implemented. 12. A computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the computer program implements the steps of the method described in any one of claims 1 to 5; or, when the computer program is executed by a processor, the computer program implements the steps of the method described in any one of claims 6 to 8.