WO2023221148A1

WO2023221148A1 - Cell reselection method and apparatus, and inactive multicast service related information sending method and apparatus

Info

Publication number: WO2023221148A1
Application number: PCT/CN2022/094287
Authority: WO
Inventors: 刘晓菲; 吴昱民
Original assignee: 北京小米移动软件有限公司
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2023-11-23
Also published as: CN117441370A

Abstract

The present disclosure relates to a cell reselection method and apparatus, and an inactive multicast service related information sending method and apparatus. The cell reselection method comprises: receiving inactive multicast service related information; determining reselection information according to the inactive multicast service related information; and performing cell reselection according to the reselection information, wherein performing cell reselection according to the reselection information comprises at least one of the following: performing inter-frequency cell reselection according to the reselection information, and performing inter-priority frequency point cell reselection according to the reselection information. According to the present disclosure, when cell reselection is performed by a terminal, whether a cell supports an inactive multicast service can be further taken into consideration according to needs, so that an inter-frequency cell and/or an inter-priority frequency point cell supporting the inactive multicast service can be preferentially reselected.

Description

Cell reselection and inactive multicast service related information sending method and device

Technical field

The present disclosure relates to the field of communication technology, specifically, to a cell reselection method, a cell reselection device, a method for sending inactive multicast service related information, a device for sending inactive state multicast service related information, a communication device and a computer readable storage media.

Background technique

In related technologies, when a terminal needs to perform a multicast service MBS (Multicast Broadcast Service, which can also be called a multicast service), it needs to first establish a Radio Resource Control (RRC) connection to enter the connected state, and receive the network side in the connected state. Configuration information of the sent multicast service.

However, in some cases, such as when there are relatively many terminals in the same cell, if the terminals always remain in the connected state to receive multicast service data, it will cause high power consumption. Therefore, the terminal can be set to perform multicast services in the inactive state. However, part of the process for the terminal to perform multicast services in the inactive state is still incomplete, resulting in the terminal being unable to receive multicast services in the inactive state.

Contents of the invention

In view of this, embodiments of the present disclosure propose a cell reselection method, a cell reselection device, a method for sending inactive multicast service-related information, and a device for sending inactive multicast service-related information to solve the technical problems in related technologies. question.

According to the first aspect of the embodiment of the present disclosure, a cell reselection method is proposed, which is suitable for terminals. The method includes: receiving inactive multicast service-related information; determining reselection based on the inactive multicast service-related information. Select information; perform cell reselection based on the reselection information; wherein, performing cell reselection based on the reselection information includes at least one of the following: performing inter-frequency cell reselection based on the reselection information; The reselection information is used to reselect cells with different priority frequencies.

According to the second aspect of the embodiment of the present disclosure, a method for sending inactive multicast service-related information is proposed, which is suitable for network equipment. The method includes: sending inactive multicast service-related information to a terminal, wherein, The inactive multicast service related information is used to instruct the terminal to determine reselection information for inter-frequency cell reselection and/or inter-priority frequency cell reselection based on the inactive multicast service related information.

According to the third aspect of the embodiment of the present disclosure, a cell reselection device is proposed, which is suitable for terminals. The device includes: a communication module configured to receive inactive multicast service-related information; a processing module configured to The inactive multicast service related information determines reselection information; cell reselection is performed based on the reselection information; wherein the processing module is configured to: perform inter-frequency cell reselection based on the reselection information; The reselection information performs cell reselection at different priority frequencies.

According to the fourth aspect of the embodiment of the present disclosure, a device for sending inactive multicast service-related information is proposed, which is suitable for network equipment. The device includes: a communication module configured to send inactive multicast service-related information to a terminal. Information, wherein the inactive multicast service related information is used to instruct the terminal to determine to perform inter-frequency cell reselection and/or inter-priority frequency cell reselection based on the inactive multicast service related information. information.

According to a fifth aspect of an embodiment of the present disclosure, a communication device is proposed, including: a processor; and a memory for storing instructions executable by the processor; wherein the processor is configured to execute the above cell reselection method.

According to a sixth aspect of the embodiment of the present disclosure, a communication device is proposed, including: a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to execute the above-mentioned inactive multicast service-related Message sending method.

According to a seventh aspect of the embodiment of the present disclosure, a computer-readable storage medium is proposed for storing a computer program, which implements the steps in the above cell reselection method when executed by a processor.

According to an eighth aspect of the embodiment of the present disclosure, a computer-readable storage medium is provided for storing a computer program, which when executed by a processor implements the steps in the above method for sending inactive multicast service-related information.

According to embodiments of the present disclosure, when performing cell reselection, the terminal can determine the reselection information of the cell based on the inactive multicast service-related information, and perform inter-frequency cell reselection and/or inter-priority based on the determined reselection information. Level frequency cell reselection. For example, when the terminal needs to perform inactive multicast services, it can reselect information about frequencies that support inactive multicast services based on the received inactive multicast service-related information relative to frequencies that do not support inactive multicast services. The reselection information of frequency points that support inactive multicast services is relatively high, and the reselection information of inter-frequency cells that support inactive multicast services is relatively low compared to the reselection information of inter-frequency cells that do not support inactive multicast services. High, so that when performing cell reselection, the terminal can have a higher possibility of reselecting to an inter-frequency cell that supports inactive multicast services. Accordingly, when performing cell reselection, the terminal can further consider whether the cell supports inactive multicast services as needed, thereby reselecting an appropriate inter-frequency cell and/or inter-priority frequency cell.

Description of the drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed 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 of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting any creative effort.

Figure 1 is a schematic flow chart of a cell reselection method according to an embodiment of the present disclosure.

Figure 2 is a schematic flow chart of another cell reselection method according to an embodiment of the present disclosure.

Figure 3 is a schematic flow chart of another cell reselection method according to an embodiment of the present disclosure.

Figure 4 is a schematic flow chart of another cell reselection method according to an embodiment of the present disclosure.

Figure 5 is a schematic flow chart of another cell reselection method according to an embodiment of the present disclosure.

Figure 6 is a schematic flow chart of a method for sending inactive multicast service-related information according to an embodiment of the present disclosure.

Figure 7 is a schematic flow chart of another inactive multicast service related information sending and reselection method according to an embodiment of the present disclosure.

Figure 8 is a schematic block diagram of a device for cell reselection according to an embodiment of the present disclosure.

Figure 9 is a schematic block diagram of a device for sending inactive multicast service-related information according to an embodiment of the present disclosure.

Figure 10 is a schematic block diagram of a terminal according to an embodiment of the present disclosure.

Figure 11 is a schematic block diagram of a network device according to an embodiment of the present disclosure.

Detailed ways

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this disclosure.

The terminology used in the embodiments of the present disclosure is for the purpose of describing specific embodiments only and is not intended to limit the embodiments of the present disclosure. As used in the embodiments of the present disclosure and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will 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 to describe various information in the embodiments of the present disclosure, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be called second information, and similarly, the second information may also be called first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "when" or "in response to determining."

For the purpose of simplicity and ease of understanding, the terms used in this article are "greater than" or "less than", "higher than" or "lower than" when characterizing size relationships. But for those skilled in the art, it can be understood that: the term "greater than" also covers the meaning of "greater than or equal to", and "less than" also covers the meaning of "less than or equal to"; the term "higher than" covers the meaning of "higher than or equal to". "The meaning of "less than" also covers the meaning of "less than or equal to".

Figure 1 is a schematic flow chart of a cell reselection method according to an embodiment of the present disclosure. The cell reselection method shown in this embodiment can be applied to terminals, which include but are not limited to mobile phones, tablet computers, wearable devices, sensors, Internet of Things devices and other communication devices. The terminal can communicate with network side equipment, which includes but is not limited to network side equipment in 4G, 5G, 6G and other communication systems, such as base stations, core networks, etc.

As shown in Figure 1, the cell reselection method may include the following steps:

In step S101, receive information related to the inactive multicast service MBS (Multicast Broadcast Service, which can also be called multicast service);

In step S102, determine reselection information based on the inactive multicast service related information;

In step S103, perform cell reselection based on the reselection information;

Wherein, the cell reselection based on the reselection information includes at least one of the following:

Perform inter-frequency cell reselection according to the reselection information;

Cell reselection at different priority frequencies is performed based on the reselection information.

All embodiments of the present disclosure can be applied to inter-frequency cell reselection and to inter-priority frequency cell reselection, where the different-priority frequency cell is a frequency point with different priorities from the frequency point of the terminal serving cell. Community, this disclosure does not limit this.

When the terminal performs cell reselection, it can determine the candidate cells that meet the cell reselection conditions. For example, it can be determined according to the S criterion. The terminal selects an appropriate cell among the candidate cells by determining the reselection information of each cell in the candidate cells.

In all embodiments of the present disclosure, candidate cells for cell reselection by the terminal may include at least one of the following: the terminal's serving cell, a neighboring cell with a different frequency than the serving cell, and a priority cell with a frequency point different from that of the serving cell. Neighboring cells with different levels.

When the terminal performs inter-frequency cell reselection, the candidate cells may include the terminal's serving cell and/or neighboring cells with different frequencies from the serving cell; when the terminal performs inter-priority frequency cell reselection, the candidate cells may include the serving cell. and/or neighboring cells with different priorities from the serving cell frequency.

When the terminal performs cell reselection for inter-frequency cells (including cells with different priority frequency points), the terminal can first select the frequency point according to the priority of the frequency point, and then select the frequency point in the cell corresponding to the selected frequency point according to the cell priority and/or Or cell reselection is performed in the order of cell reselection.

Therefore, in one embodiment, the reselection information may include at least one of the following:

Frequency priority;

Priority of the community;

The order of reselection of cells.

In one embodiment, determining the reselection information based on the inactive multicast service related information includes:

Determine the priority of the frequency point based on the inactive multicast service related information; and/or

Determine the priority of the cell based on the inactive multicast service related information; and/or

The reselection order of the cells is determined according to the inactive multicast service related information, where the reselection order of the cells can be determined according to the cell sorting criterion (R criterion).

In one embodiment, the terminal can select a frequency point according to the priority of the frequency point, for example, select the frequency point according to the priority from high to low;

In one embodiment, the terminal can perform cell reselection according to the priority of the cell, for example, select cells according to the priority from high to low;

In one embodiment, the terminal may perform cell reselection according to the cell reselection order, for example, selecting cells from front to back in order.

In one embodiment, the terminal can determine the priority of the frequency point based on the received inactive multicast service related information, select the frequency point based on the priority of the frequency point, and then select the frequency point based on the received inactive multicast service related information. The information determines the priority of the cell and/or the reselection order of the cells in the cell corresponding to the selected frequency point, and performs cell reselection based on the priority of the cell and/or the reselection order of the cells.

In one embodiment, the inactive multicast service related information includes at least one of the following:

Inactive multicast service configuration information; wherein the inactive multicast service configuration information is used to determine the first cell and/or first frequency point that supports the inactive multicast service;

Support indication information, wherein the support indication information is used to determine the first cell and/or the first frequency point that supports the inactive multicast service;

Priority configuration related information, wherein the priority configuration related information is used to determine the priority of the first cell, and/or the reselection order of the first cell, and/or the first frequency point priority.

In one embodiment, the inactive multicast service configuration information includes configuration information for the terminal to perform inactive multicast service reception, such as time domain resources, frequency domain resources, etc.

The terminal can determine the frequency point corresponding to the cell that has received the inactive multicast service configuration information, and determine that the frequency point is the first frequency point that supports the inactive multicast service. Further, it can also determine the frequency point of the first frequency point. The priority is higher than the priority of the second frequency point that does not support inactive multicast services; among them, when there are multiple first frequency points, the priority between multiple first frequency points can be implemented by the terminal itself Sure.

The terminal can determine the cell that has received the inactive multicast service configuration information, and determine that the cell is the first cell that supports the inactive multicast service. Further, it can also determine that the priority of the first cell is higher than that of the first cell that does not support the inactive multicast service. The priority of the second cell that activates the multicast service may also determine that the reselection sequence of the first cell is before the reselection sequence of the second cell. Wherein, when there are multiple first cells, the priority and/or reselection order among the multiple first cells can be determined by the terminal itself.

In one embodiment, the support indication information may include first support indication information and/or second support indication information, where the support indication information includes but is not limited to a rate limit list.

The terminal may determine the first frequency point that supports the inactive state multicast service according to the first support indication information (for example, a list related to the frequency point), and may further determine that the first frequency point has a higher priority than the group that does not support the inactive state multicast service. The priority of the second frequency point of the broadcast service; wherein, when there are multiple first frequency points, the priority between the multiple first frequency points can be determined by the terminal itself.

The terminal may determine the first cell that supports the inactive multicast service according to the second support indication information (for example, a list related to the cell), and may further determine that the priority of the first cell is higher than that of the first cell that does not support the inactive multicast service. The priority of the second cell may also determine that the reselection sequence of the first cell is before the reselection sequence of the second cell. Wherein, when multiple first cells are determined according to the second support indication information, the priority and/or reselection order among the multiple first cells may be determined by the terminal itself.

In one embodiment, the priority configuration related information includes at least one of the following:

Frequency priority information;

Priority information of the cell;

Cell reselection parameters associated with the inactive multicast service.

On the basis of receiving the support indication information, the terminal can also receive priority configuration related information.

For example, the terminal may first determine the first frequency point that supports the inactive multicast service based on the first support indication information, and further determine the priority of the first frequency point based on the priority information of the frequency point.

For example, the terminal may first determine the first cell that supports the inactive multicast service based on the second support indication information, and further determine the priority of the first cell based on the priority information of the cell.

For example, the terminal may first determine the first cell that supports the inactive multicast service based on the second support indication information, and further determine the reselection sequence of the first cell based on the cell reselection parameters associated with the inactive multicast service.

Wherein, the cell reselection parameters associated with the inactive multicast service are used to determine the reselection sequence of the first cell. For example, the terminal determines the reselection sequence of the cells based on the R criterion. The cell reselection parameters can be Used to adjust parameters in the R criterion.

That is, when performing cell reselection, the terminal can determine the third party that supports the inactive multicast service based on the inactive multicast service configuration information in the received inactive multicast service related information and/or based on the support indication information. One cell and/or the first frequency point. And for the determined first cell and/or first frequency point, the terminal can determine the first cell and/or the first frequency point according to the agreement or according to the priority configuration related information in the received inactive multicast service related information. The priority of the frequency point is determined to determine the cell reselection information for cell reselection.

In related technologies, when a terminal performs cell reselection, the terminal can calculate the R value of each candidate cell through the cell ranking criterion (R criterion), and then sort the candidate cells based on the relationship between the R values of each candidate cell, so that the candidate cells can be sorted according to The sorted results are used for cell reselection. Specifically, the calculation formula for calculating the R value of each candidate cell through the R criterion is as follows:

R _s =Q _meas,s +Q _hyst -Qoffset _temp ;

R _n =Q _meas,n -Qoffset-Qoffset _temp ;

Among them, R _s represents the R value of the serving cell, R _n represents the R value of the neighboring cell, Q _mean,s represents the reference signal receiving power RSRP (Reference Signal Receiving Power) of the serving cell, and Q _hyst represents the reselection hysteresis parameter of the serving cell. , Qoffset _temp represents the new offset parameter in the R criterion when multiple random access failures occur, Qoffset represents the offset value of the neighboring cell, and Qoffset _temp and Qoffset are both carried by the network device and broadcast in the system message.

According to the above formula, it can be seen that when performing cell reselection, the terminal mainly considers the signal quality of the cell and selects a cell with better signal quality to reside in based on the reference signal received power. However, when the terminal needs to perform some specific services, such as inactive multicast services, since not all cells support inactive multicast services, if only the signal quality of the cell is considered, the terminal is likely to Reselect a cell with better signal quality but does not support inactive multicast services, so inactive multicast services cannot be performed in the reselected cell.

According to this embodiment, when performing cell reselection, the terminal can determine the reselection information based on the inactive multicast service related information, and perform cell reselection based on the determined reselection information. Without considering other conditions (conditions other than whether the inactive multicast service is supported or not), determining the reselection information based on the information related to the inactive multicast service can make the first frequency point that supports the inactive multicast service The priority of the first cell that supports the inactive multicast service is higher than the priority of the second frequency point that does not support the inactive multicast service. The priority of the first cell that supports the inactive multicast service is higher than the priority of the second cell that does not support the inactive multicast service. The priority of the cell and/or the reselection sequence of the first cell is before the reselection sequence of the second cell.

According to an embodiment of the present disclosure, determining the reselection information based on the inactive multicast service related information includes:

According to the information related to the inactive multicast service, it is determined that the priority of the first frequency point that supports the inactive multicast service is higher than the priority of the second frequency point that does not support the inactive multicast service. ;

and / or

According to the information related to the inactive multicast service, it is determined that the priority of the first cell that supports the inactive multicast service is higher than the priority of the second cell that does not support the inactive multicast service. , and/or determine that the reselection sequence of the first cell is before the reselection sequence of the second cell.

For example, if the terminal can support the inactive multicast service, or if the terminal can support the inactive multicast service and needs to perform the inactive multicast service, it can determine based on the information related to the inactive multicast service. Reselect the message.

Therefore, in the process of reselecting inter-frequency cells, the information related to the inactive multicast service can be considered, so that the first frequency point that supports the inactive multicast service has a higher priority than the first frequency point that does not support the inactive multicast service. The priority of the second frequency point allows the terminal to have a higher possibility of reselecting to the first frequency point that supports inactive multicast services when reselecting inter-frequency cells (including cells with different priority frequency points);

And when further reselecting the cell under the reselected frequency point, the priority of the first cell that supports the inactive multicast service is higher than the priority of the second cell that does not support the inactive multicast service. level, and/or the reselection sequence of the first cell is before the reselection sequence of the second cell, so that inter-frequency cells (including different-priority frequencies) are selected according to the priority of the cell and/or the reselection sequence of the cell. When reselecting a cell), the terminal can reselect to the first cell that supports inactive multicast services with a higher probability. Accordingly, it is helpful to ensure that the terminal can perform inactive multicast services in the reselected cell.

Figure 2 is a schematic diagram of another cell reselection method according to an embodiment of the present disclosure. As shown in Figure 2, the method also includes:

In step S201, determine the first cell and/or first frequency point that supports the inactive state multicast service according to the support indication information; and/or determine that the inactive state is not supported according to the support indication information. The second cell and/or second frequency point of the multicast service.

In one embodiment, the support indication information includes at least one of the following:

Cell list1, the first list of cells supporting inactive multicast services;

Cell list2, the second list of cells that does not support inactive multicast services;

Frequency list3, the third list of frequencies that supports inactive multicast services;

Frequency list 4 is the fourth list of frequencies that does not support inactive multicast services.

In one embodiment, determining the first cell and/or the second cell according to the support indication information includes:

Determine that a cell that belongs to the first list and/or does not belong to the second list is the first cell;

It is determined that a cell that does not belong to the first list and/or belongs to the second list is a second cell.

In one embodiment, determining the first frequency point and/or the second frequency point according to the support indication information includes:

Determine the frequency points that belong to the third list and/or do not belong to the fourth list as the first frequency points;

It is determined that frequency points that do not belong to the third list and/or belong to the fourth list are second frequency points.

The network device carries the cell list and/or the frequency point list indicating that the inactive multicast service is supported and/or does not support the inactive multicast service as the support indication information, and carries it in the inactive multicast service related information and sends it to the terminal, so that the terminal receives After obtaining the relevant information about the inactive multicast service, you can determine the cells that support the inactive multicast service and/or the cells that do not support the inactive multicast service based on the cell list contained therein. Determine the frequencies that support inactive multicast services and/or the frequencies that do not support inactive multicast services.

In one embodiment, the terminal may determine the first cell that supports the inactive multicast service and/or the second cell that does not support the inactive multicast service based on the cell list included in the support indication information. . For example, when the terminal determines that the received information related to the inactive multicast service contains the Cell list 1 of a cell that supports the inactive multicast service, the terminal may determine that the candidate cell included in the Cell list 1 is the first cell. The candidate cells not included in Cell list1 are the second cells. For another example, when the terminal determines that the received information related to the inactive multicast service contains the Cell list 2 of a cell that does not support the inactive multicast service, the terminal may determine that the candidate cell included in the Cell list 2 is the second cell. cell, and the candidate cell not included in Cell list2 is the first cell.

In one embodiment, the terminal may determine the first frequency point that supports the inactive multicast service and/or the third frequency point that does not support the inactive multicast service based on the frequency point list included in the support indication information. Second frequency point. For example, when the terminal determines that the received information related to the inactive multicast service includes Frequency list 3 of frequencies that support the inactive multicast service, the terminal may determine the frequency corresponding to the candidate cell included in the Frequency list 3. The point is the first frequency point, and the frequency point corresponding to the candidate cell not included in Frequency list3 is the second frequency point. For another example, when the terminal determines that the received information related to the inactive multicast service contains the Frequency list 4 of a frequency point that does not support the inactive multicast service, the terminal may determine the candidate cell contained in the Frequency list 4 corresponding to The frequency point is the second frequency point, and the frequency point corresponding to the candidate cell not included in Frequency list4 is the first frequency point.

Of course, the above embodiment is only an exemplary description of the support indication information in the present disclosure. In fact, in addition to the list form, the support indication information in the present disclosure can also be expressed in other forms, and the present disclosure does not limit this.

In one embodiment, the information related to the inactive multicast service may also include configuration information of the inactive multicast service, where the configuration information of the inactive multicast service is used to configure the terminal to execute the inactive multicast service. For example, the configuration information of the inactive multicast service includes time domain resources, frequency domain resources, etc. for the terminal to perform inactive multicast service data reception.

In this embodiment, the terminal may, in response to receiving the configuration information of the inactive multicast service, determine that the cell in which the terminal receives the configuration information of the inactive multicast service supports the inactive multicast service. The first cell of business.

Wherein, the cell from which the terminal receives the configuration information of the inactive multicast service may include at least one of the following:

One or more cells configured to support multicast services when the terminal is in the connected state; specifically, they can be primary cells, secondary cells, primary and secondary cells, etc., and this disclosure does not limit this;

The serving cell where the terminal is currently located when it receives the inactive multicast service configuration information; it may also include the cell where the terminal was camped when it received the configuration information; specifically it may be the primary cell, the secondary cell, the primary and secondary cells, etc., this There are no restrictions on disclosure.

Since the configuration information of the inactive multicast service sent by the network device is used to configure the terminal to perform data reception of the inactive multicast service, when the terminal receives the configuration information in any cell, it can default that the cell supports the inactive group. multicast service, there is no need for the network equipment to send additional support indication information to indicate whether the cell supports inactive multicast services, which reduces the consumption of communication resources.

Figure 3 is a schematic diagram of yet another cell reselection method according to an embodiment of the present disclosure. As shown in Figure 3, determining the reselection information based on the inactive multicast service related information includes at least one of the following:

In step S301, the reselection information is determined according to the agreement;

Wherein, the reselection information determined according to the agreement includes at least one of the following:

Determining that the priority of the first frequency point that supports the inactive multicast service is higher than the priority of the second frequency point that does not support the inactive multicast service;

Determining that the priority of the first cell that supports the inactive multicast service is higher than the priority of the second cell that does not support the inactive multicast service;

It is determined that the reselection sequence of the first cell is before the reselection sequence of the second cell.

In one embodiment, the protocol stipulates that after determining the first frequency point and/or the second frequency point, the terminal determines to set the priority of the first frequency point to the highest priority. In addition, the priority between multiple first frequency points can be determined by the terminal itself, or the protocol determines that the multiple first frequency points will be regarded as equal priority frequencies. This disclosure does not limit this. That is, the terminal determines that the priorities of all first frequency points are higher than the priorities of the second frequency points, and performs cell reselection based on the determined priorities of the frequency points, so that the terminal performs cell reselection based on the priorities of the frequency points. The frequency can be reselected first to support the inactive multicast service.

In one embodiment, the terminal may determine the priority of the cells and/or the reselection order of the cells according to the protocol agreement. For example, after determining the first cell and/or the second cell, the terminal may set the priority of the first cell to the highest priority and/or set the reselection order of the first cell to the front according to the agreement. And regarding the priority and/or reselection order among multiple first cells, the terminal can be determined by its own implementation, or the protocol determines to treat multiple first cells as cells with equal priority and/or equal reselection order. , this disclosure does not limit this. That is, the terminal determines that the priorities of all first cells are higher than the priorities of the second cells, and/or the reselection order of all first cells is before the reselection order of the second cells, and based on the determined priorities of the cells Cell reselection is performed based on the cell priority and/or cell reselection order, so that the terminal can preferentially reselect a cell that supports inactive multicast services when performing cell reselection based on the cell priority and/or cell reselection order.

In one embodiment, the terminal can determine the priority of the frequency point according to the agreement, and after selecting the reselection frequency point according to the determined priority of the frequency point, further determine the cell corresponding to the reselection frequency point according to the agreement. priority and/or cell reselection order. For example, after determining the first frequency point and/or the second frequency point, the terminal can set the priority of the first frequency point to the highest priority according to the agreement, so that the frequency point that supports the inactive multicast service can be selected first . After selecting a frequency point according to the priority of the determined frequency point, the first cell and/or the second cell can be further determined in the cell corresponding to the selected frequency point. The terminal can still follow the cell relocation within the existing frequency point. The priority and/or reselection order of each cell under the reselection frequency point are determined by the reselection method, and the cell reselection is performed according to the determined priority and/or reselection order of the cells; the first cell can also be further selected as needed. The priority is set to the highest priority and/or the reselection order of the first cell is set to the front, so that when cell reselection is performed according to the cell's priority and/or reselection order, priority can be given to reselection to a non-supported cell. Cell in which multicast service is activated.

In one embodiment, the method further includes:

When the first frequency point no longer supports the inactive multicast service, re-determine the priority of the first frequency point; and/or

When the first cell no longer supports the inactive multicast service, re-determine the priority of the first cell;

Wherein, the re-determining the priority of the first cell includes: determining the priority of the first cell to be the lowest priority; or, determining that the first cell does not participate in cell reselection; or, reselecting according to traditional The information re-determines the priority of the first cell;

The redetermining the priority of the first frequency point includes: determining the priority of the first frequency point to be the lowest priority; or, determining that the first frequency point does not participate in frequency point reselection; or, according to traditional The reselection information re-determines the priority of the first frequency point.

Since whether a cell and/or frequency point supports inactive multicast services may change, when a cell and/or frequency point that supports inactive multicast services no longer supports inactive multicast services service, if the cell reselection is still performed according to the original priority, the terminal will still give priority to the cell and/or frequency that no longer supports the inactive multicast service, and thus cannot perform well in the inactive state. Receive multicast services.

Therefore, when a cell that supports inactive multicast services no longer supports inactive multicast services, the priority of the cell that no longer supports inactive multicast services can be regarded as the lowest priority, or it can The priority of the cell that no longer supports the inactive multicast service can be re-determined based on the traditional legacy priority, or the cell that no longer supports the inactive multicast service can be excluded from the candidate cells for cell reselection. This is to prevent the terminal from being reselected to the cell that no longer supports inactive multicast services.

When a frequency point that supports inactive multicast services no longer supports inactive multicast services, the priority of the frequency point that no longer supports inactive multicast services can be regarded as the lowest priority, or it can be based on The traditional legacy priority re-determines the priority of the frequency point that no longer supports the inactive multicast service, or the cell corresponding to the frequency point that no longer supports the inactive multicast service can be excluded from the candidate frequency points. In addition, to prevent the terminal from reselecting the frequency point that no longer supports inactive multicast services.

Figure 4 is a schematic diagram of yet another cell reselection method according to an embodiment of the present disclosure. As shown in Figure 4, determining the reselection information based on the inactive multicast service-related information includes:

In step S401, determine the priority of the first frequency point according to the priority information of the frequency point; and/or determine the priority of the first cell according to the priority information of the cell; and/or , determining the reselection sequence of the first cell according to the cell reselection parameters.

In one embodiment, the network device can carry the priority information of the frequency point in the inactive multicast service related information and send it to the terminal as the priority configuration information, so that the terminal can adjust the priority of the frequency point issued by the network side. The information determines the priority of the frequency points. For example, the network device can carry the priority information of the first frequency point as priority configuration information and send it in the inactive multicast service-related information. After receiving the inactive multicast service-related information, the terminal group After determining the first frequency point that supports the inactive multicast service based on the relevant information about the broadcast service, the terminal can directly determine the priority of the first frequency point based on the priority information of the first frequency point contained in the relevant information, so as to determine the priority of the first frequency point according to the determined Cell reselection is performed based on the priority of the first frequency point.

In one embodiment, the network device can carry the priority information of the frequency point in the inactive multicast service related information and send it to the terminal as the priority configuration information, so that the terminal can adjust the priority of the frequency point issued by the network side. The information determines the priority of the frequency points. For example, the network device can carry the priority information of the first cell as the priority configuration information and send it in the inactive multicast service-related information. After receiving the inactive multicast service-related information, the terminal After the service-related information determines the first cell that supports the inactive multicast service, the terminal can directly determine the priority of the first cell based on the priority information of the first cell contained in the relevant information, and thereby determine the priority of the first cell based on the determined frequency. Prioritize cell reselection.

In one embodiment, the network device can carry the priority information of the frequency point and the priority information of the frequency point in the inactive multicast service related information and send it to the terminal as priority configuration information, so that the terminal can configure the frequency point according to the network side. The delivered frequency point priority information and frequency point priority information respectively determine the frequency point priority and frequency point priority.

For example, the network device can carry the priority information of the first frequency point and the priority information of the first cell as priority configuration information in the inactive multicast service related information and send it. After receiving the inactive multicast service, the terminal After determining the first frequency point that supports the inactive multicast service based on the relevant information and the information related to the inactive multicast service, the terminal can directly determine the first frequency point based on the priority information of the first frequency point contained in the relevant information. priority, thereby determining the reselected frequency point based on the determined priority of the first frequency point. Further, for the cell corresponding to the determined reselection frequency point, after the terminal determines the first cell that supports the inactive multicast service based on the inactive multicast service related information, it may not perform cell reselection within the frequency point. Improvement: The reselection sequence of each cell under the reselection frequency point is still determined according to the existing method, and the cell reselection is performed according to the determined reselection sequence of the cells; it can also be directly based on the first cell's reselection sequence contained in the relevant information. The priority information determines the priority of the first cell, so that cell reselection is performed in the cell corresponding to the reselected frequency point according to the determined priority of the frequency point.

The priority information of the cell sent by the network device may include at least one of the following:

Priority information of the first cell that supports inactive multicast services;

Priority information of the first cell that supports the inactive multicast service and priority information of the second cell that does not support the inactive multicast service.

The priority information of the frequency points sent by the network device may include at least one of the following:

Priority information of the first frequency point that supports inactive multicast services;

Priority information of the first frequency point that supports inactive multicast services and priority information of the second frequency point that does not support inactive multicast services;

Legacy dedicated frequency priority.

In one embodiment, the priority information of the frequency point and/or the priority information of the cell is valid within the timer timing period. In addition to sending the priority information of the frequency point and/or the priority information of the cell to the terminal, the network device can also send timer configuration information related to the priority information of the frequency point and/or the priority information of the cell to the terminal. After receiving the priority information of the frequency point and/or the priority information of the cell, the timer can be run according to the timer configuration information provided by the network device. Among them, the timer run by the terminal can reuse the existing T320 timer, or can introduce a new timer different from T320. This disclosure does not limit this.

Within the valid time of the timer, the terminal can determine the priority of the frequency point according to the priority information of the frequency point provided by the network device, and/or determine the priority of the cell according to the priority information of the cell provided by the network device, When the timer times out, that is, outside the valid time, the priority of the frequency point may not be determined based on the priority information of the frequency point provided by the network device, and the priority of the cell may not be determined based on the priority information of the cell provided by the network device. Priority, to avoid determining the reselection information based on the original priority configuration information after the status of the cell and/or frequency point changes, which will affect the terminal's reception of inactive multicast services in the reselected cell.

In one embodiment, after the network device delivers the priority information of the frequency point to the terminal, the terminal may also first determine that the priority of the first frequency point that supports the inactive multicast service is higher than the priority of the second frequency point. , and then determine the priority between each first frequency point based on the received priority of the frequency point delivered by the network device.

In one embodiment, after the network device sends the priority information of the frequency point to the terminal, the terminal can also first determine that the priority of the first cell that supports the inactive multicast service is higher than the priority of the second cell, and then The priority between the first cells is then determined based on the received priority of the frequency point delivered by the network device.

In one embodiment, after receiving the inactive multicast service-related information sent by the network device, the terminal can first determine whether the inactive multicast service-related information contains priority configuration information. If the inactive multicast service-related information is The relevant information does not contain priority configuration information, the terminal can set the level of the reselection information as needed, and perform cell reselection based on the self-set reselection information; if it is determined that the inactive multicast service related information contains priority configuration information, the reselection information can be determined based on the priority information configured by the network device, and cell reselection can be performed based on the reselection information determined based on the network device configuration. The terminal can set the reselection information as needed, and perform cell reselection based on the network device configuration. The configured priority information determines the reselection information. Please refer to the relevant content in the above embodiments, which will not be described again here.

In one embodiment, the network device can carry the cell reselection parameters associated with the inactive multicast service in the inactive multicast service related information and send it to the terminal as priority configuration information, so that the terminal can send the inactive multicast service to the terminal. The R criterion is introduced into the cell reselection parameters associated with the multicast service to calculate the R value of the cell, and then the cell reselection sequence is determined by comparing the R value of the cell.

In an embodiment, the cell reselection parameters associated with the inactive multicast service may be carried by the network device in system messages (for example, system information block SIB2 messages and/or SIB3 messages) or proprietary signaling (for example, wireless Resource control release (RRCRelease signaling) is sent.

In an embodiment, the terminal may determine the reselection sequence of the first cell according to the received cell reselection parameters. Taking the R criterion as an example, when calculating the R value of the first cell that supports inactive multicast services, cell reselection parameters can be introduced based on the original parameters in the R value calculation formula of related technologies to increase support. The R value of the first cell of the inactive multicast service is used to improve the ranking of the first cell in cell reselection. As a possible implementation, the calculation formula for calculating the R value of the first cell through the R criterion is as follows:

R _s =Q _meas,s +Q _hyst -Qoffset _temp +Qoffset _multicast (Formula 1);

R _n =Q _meas,n -Qoffset-Qoffset _temp +Qoffset _multicast (Formula 2);

Among them, Qoffset _multicast is the cell reselection parameter associated with the inactive multicast service.

In one embodiment, the terminal can no longer use Qoffset and Qoffset _temp when calculating the R value, but can directly calculate Rs based on Q _meas,s , Q _hyst and cell reselection parameters, and calculate Rs based on Q _meas,n and cell reselection parameters. Calculate the R _n value.

In one embodiment, the cell reselection parameter may be associated with whether the cell supports the inactive multicast service and whether the frequency point corresponding to the cell supports the inactive multicast service. That is, in this embodiment, the network device can carry the frequency reselection parameters in the cell reselection parameters and send them to the terminal. The terminal performs calculations based on the received cell reselection parameters. It can not only add support for inactive multicast services The R value of the first cell also further increases the R value of the cell corresponding to the first frequency point that supports the inactive multicast service, and improves the ranking of the cell corresponding to the first frequency point in cell reselection.

After receiving the relevant information of the inactive multicast service, the terminal can determine the first frequency point that supports the inactive multicast service and/or the second frequency point that does not support the inactive multicast service and the group that supports the inactive state. The first cell that broadcasts the service and/or the second cell that does not support the inactive multicast service. For example, the first cell and the first frequency point can be determined according to the support indication information in the relevant information of the inactive multicast service.

Furthermore, when determining the reselection sequence of cells, the R value of the first cell and/or the second cell can be calculated based on the cell reselection parameters associated with the inactive multicast service, so that the reselection sequence of the first cell is not higher than that of the first cell. The second cell that supports inactive multicast services is placed relatively near the front, so that the terminal can be reselected to a cell that supports inactive multicast services first, which is helpful to ensure that the terminal can perform inactive operations in the reselected cell. Multicast service.

In one embodiment, after the terminal determines the reselection sequence of the first cell based on the received cell reselection parameters, the terminal may perform cell reselection only in the first cell based on the determined reselection sequence of the first cell, and Ignoring the second cell, avoiding reselection to a cell that does not support inactive multicast services helps ensure that the terminal can perform inactive multicast services in the reselected cell.

In one embodiment, in addition to determining the first cell reselection sequence based on the cell reselection parameters, the terminal can also determine the second cell reselection sequence based on the cell reselection parameters. However, when determining the reselection sequence of the second cell, it can Taking the Qoffset _multicast in the above equations 1 and 2 as 0, it is equivalent to still following the existing R criterion and determining the R _s value of the second cell by calculating Q _meas,s + Qhyst-Qoffset _temp . By calculating Q _{meas , n} -Qoffset-Qoffset _temp determines the R _n value of the second cell, so that the cell reselection order of the first cell in the determined cell reselection order can still be relatively earlier than the cell reselection order of the second cell.

In one embodiment, when the second cell reselection sequence is determined, the terminal may not only perform cell reselection in the first cell that supports the inactive multicast service, but may also perform cell reselection based on the determined first cell. The cell reselection sequence and the reselection sequence of the second cell are sorted for all cells that support and do not support inactive multicast services (the first cell and the second cell), so that all candidate cells that meet the cell reselection conditions are sorted. Perform cell reselection.

In one embodiment, when the received cell reselection parameter meets the preset condition (for example, the cell reselection parameter is infinity), the terminal may first perform cell reselection in the first cell, and then perform cell reselection according to the The reselection sequence of the first cell: If the cell reselection in the first cell fails to successfully reselect the cell, cell reselection is further performed in all reselection candidate cells.

Specifically, when the terminal determines that the received cell reselection parameter is infinite, it may determine that it needs to perform cell reselection in the first cell, and then perform cell reselection in the first cell but fails to successfully reselect the cell. Cell reselection is performed among all candidate cells, that is, the cell reselection parameters not only can be used to calculate the R value, but also serve as an indicator. Then, the terminal first performs cell reselection in the first cell according to the reselection order of the first cell. If the cell reselection in the first cell fails to successfully reselect the cell, the terminal further performs cell reselection according to the reselection sequence of all candidate cells. Carry out community reselection. In this case, the terminal treats the cell reselection parameter as 0 when calculating the R value of each first cell.

In one embodiment, the cell reselection parameter may be associated only with whether the cell supports inactive multicast services. When the terminal performs cell reselection, the terminal can determine the priority of the frequency point through any of the embodiments shown above, and select the reselection frequency point according to the determined priority of the frequency point. When determining the cell reselection order for the cells corresponding to the reselection frequency point, the first cell that supports the inactive multicast service under the reselection frequency point can be calculated through the cell reselection parameters according to the above-mentioned Equation 1 and Equation 2. The R value is increased to increase the R value of the first cell that supports the inactive multicast service in the cell corresponding to the reselection frequency point, and improve the ranking of the first cell in cell reselection.

In one embodiment, the method further includes: when it is determined that the currently camped frequency point no longer supports the inactive multicast service, perform cell reselection on cells corresponding to other frequency points;

When it is determined that the currently camped cell no longer supports the inactive multicast service, stop using the cell reselection parameters to determine the reselection sequence of the currently camped cell, and perform other operations on the currently camped frequency point. The community undergoes cell reselection.

Since cells and/or frequencies may change whether they support inactive multicast services, a cell and/or frequency that supports inactive multicast services no longer supports inactive multicast services. , if the R value is still calculated according to the above equation 1 and equation 2 to determine the cell reselection sequence, the terminal may preferentially reselect the cell and/or frequency point that no longer supports the inactive multicast service, thus failing to achieve good results. The ground receives multicast services in the inactive state. Therefore, when a frequency point that supports the inactive multicast service no longer supports the inactive multicast service, the terminal needs to perform cell reselection on other frequency points than the frequency point. When a cell that supports inactive multicast services no longer supports inactive multicast services, it is necessary to stop using Qoffset _multicast and calculate Q _meas,s +Qhyst-Qoffset _temp or Q _meas according to the existing R criteria. , _n -Qoffset-Qoffset _temp re-determines the R value of the cell, and re-determines the cell re-selection sequence based on the calculated R value for cell re-selection.

Figure 5 is a schematic diagram illustrating yet another cell reselection method according to an embodiment of the present disclosure. As shown in Figure 6, the method also includes:

In step S501, capability information is reported to the network device, where the capability information is used to indicate whether the terminal supports the capability of inactive multicast services.

Before performing cell reselection, the terminal can report capability information indicating whether it supports inactive multicast services to the network device in advance, so that the network device can determine whether to provide inactive multicast services to the terminal based on the received capability information. Related Information.

When the network device determines that the terminal supports the inactive multicast service based on the capability information reported by the terminal, it can provide the terminal with information related to the inactive multicast service so that the terminal can preferentially reselect a terminal that supports the inactive multicast service. cell; and when it is determined that the terminal does not support the inactive multicast service based on the capability information reported by the terminal, there is no need to provide the terminal with information related to the inactive multicast service, thereby reducing the consumption of communication resources and allowing the terminal to According to the original cell reselection method, camp on the cell with the best signal quality.

Figure 6 is a schematic flow chart of a method for sending inactive multicast service-related information according to an embodiment of the present disclosure. The method for sending inactive multicast service-related information shown in this embodiment can be executed by network side equipment. The network side equipment can communicate with the terminal. The network side equipment includes but is not limited to 4G base station, 5G base station, and 6G base station. The terminals include but are not limited to mobile phones, tablet computers, wearable devices, sensors, Internet of Things devices and other communication devices.

As shown in Figure 6, the method for sending inactive multicast service-related information may include the following steps:

In step S601, inactive multicast service-related information is sent to the terminal. The inactive multicast service-related information is used to instruct the terminal to determine the inter-frequency cell reconfiguration method based on the inactive multicast service-related information. Reselection information of cell reselection and/or cell reselection of different priority frequencies.

Therefore, in one embodiment, the reselection information includes at least one of the following:

Frequency priority;

Priority of the community;

Reselect order.

In one embodiment, the inactive multicast service related information is used to instruct the terminal to determine reselection information based on the inactive multicast service related information including:

The inactive multicast service related information is used to instruct the terminal to determine the priority of the frequency point based on the inactive multicast service related information; and/or

The inactive multicast service related information is used to instruct the terminal to determine the priority of the cell based on the inactive multicast service related information; and/or

The inactive multicast service related information is used to instruct the terminal to determine the reselection sequence of cells based on the inactive multicast service related information, where the reselection sequence of cells can be determined according to the cell sorting criterion (R criterion).

After the network device sends the inactive multicast service configuration information to the terminal, the terminal can determine the frequency point corresponding to the cell that received the inactive multicast service configuration information, and determine that the frequency point supports the inactive multicast service the first frequency point, it can further be determined that the priority of the first frequency point is higher than the priority of the second frequency point that does not support the inactive multicast service; wherein, when there are multiple first frequency points, multiple third frequency points The priority between frequency points can be determined by the terminal itself.

After the network device sends the inactive multicast service configuration information to the terminal, the terminal can determine the cell that received the inactive multicast service configuration information and determine that the cell is the first cell that supports the inactive multicast service. Furthermore, it may be determined that the priority of the first cell is higher than the priority of the second cell that does not support the inactive multicast service, or it may be determined that the reselection sequence of the first cell is before the reselection sequence of the second cell. Wherein, when there are multiple first cells, the priority and/or reselection order among the multiple first cells can be determined by the terminal itself.

After the network device sends the first support indication information to the terminal, the terminal can determine the first frequency point that supports the inactive multicast service according to the first support indication information (for example, a list related to the frequency point), and further determine the first frequency point. The priority of the point is higher than the priority of the second frequency point that does not support the inactive multicast service; among them, when there are multiple first frequency points, the priority between the multiple first frequency points can be determined by the terminal. Self-realization is determined.

After the network device sends the second support indication information to the terminal, the terminal can determine the first cell that supports the inactive multicast service based on the second support indication information (for example, a list related to the cell), and further determine the priority of the first cell. The priority is higher than the priority of the second cell that does not support the inactive multicast service. It can also be determined that the reselection sequence of the first cell is before the reselection sequence of the second cell. Wherein, when multiple first cells are determined according to the second support indication information, the priority and/or reselection order among the multiple first cells may be determined by the terminal itself.

Frequency priority information;

Priority information of the cell;

Cell reselection parameters associated with the inactive multicast service.

On the basis of sending support indication information to the terminal, the network device can also send priority configuration-related information, so that the terminal can also receive priority configuration-related information on the basis of receiving the support indication information.

For example, the terminal may first determine the first cell that supports the inactive multicast service through the second support indication information, and further determine the reselection sequence of the first cell based on the cell reselection parameters associated with the inactive multicast service.

Rs=Qmeas,s+Qhyst-Qoffsettemp;

Rn=Qmeas,n-Qoffset-Qoffsettemp;

Among them, Rs represents the R value of the serving cell, Rn represents the R value of the neighboring cell, Qmean,s represents the reference signal receiving power RSRP (Reference Signal Receiving Power) of the serving cell, Qhyst represents the reselection hysteresis parameter of the serving cell, and Qoffsettemp represents R The offset parameter added in the criterion when multiple random access failures occur, Qoffset represents the offset value of the neighboring cell, and Qoffsettemp and Qoffset are both carried by the network equipment and broadcast in the system message.

According to this embodiment, the network device can send inactive multicast service related information to the terminal so that when the terminal performs cell reselection, it can determine the reselection information based on the inactive multicast service related information, and determine the reselection information based on the determined reselection. Select information to perform cell reselection. Without considering other conditions (conditions other than whether the inactive multicast service is supported or not), determining the reselection information based on the information related to the inactive multicast service can make the first frequency point that supports the inactive multicast service The priority of the first cell that supports the inactive multicast service is higher than the priority of the second frequency point that does not support the inactive multicast service. The priority of the first cell that supports the inactive multicast service is higher than the priority of the second cell that does not support the inactive multicast service. The priority of the cell and/or the reselection sequence of the first cell is before the reselection sequence of the second cell.

In one embodiment, the inactive multicast service related information is used to instruct the terminal to determine that the priority of the first frequency point that supports the inactive multicast service is higher than that of the first frequency point that does not support the inactive multicast service. The priority of the second frequency point;

and / or

The inactive multicast service related information is used to indicate that the first cell determined to support the inactive multicast service has a higher priority than the second cell that does not support the inactive multicast service. priority, and/or the reselection sequence of the first cell that supports the inactive multicast service is before the reselection sequence of the second cell that does not support the inactive multicast service.

The network device sends information related to the inactive multicast service to the terminal so that the terminal can support the inactive multicast service, or can support the inactive multicast service and needs to perform the inactive multicast service. Under this condition, the reselection information can be determined based on the information related to the inactive multicast service.

In one embodiment, the priority information of the frequency point is used for the terminal to determine the priority of the first frequency point;

and / or

The priority information of the cell is used for the terminal to determine the priority of the first cell;

and / or

The cell reselection parameters are used for the terminal to determine the reselection sequence of the first cell.

Legacy dedicated frequency priority.

In one embodiment, after the network device sends the cell reselection parameters to the terminal, the terminal can determine the reselection sequence of the first cell based on the received cell reselection parameters. Taking the R criterion as an example, when calculating the R value of the first cell that supports inactive multicast services, cell reselection parameters can be introduced based on the original parameters in the R value calculation formula of related technologies to increase support. The R value of the first cell of the inactive multicast service is used to improve the ranking of the first cell in cell reselection. As a possible implementation, the calculation formula for calculating the R value of the first cell through the R criterion is as follows:

Rs=Qmeas,s+Qhyst-Qoffsettemp+Qoffsetmulticast (Equation 1);

Rn=Qmeas,n-Qoffset-Qoffsettemp+Qoffsetmulticast (Formula 2);

Among them, Qoffsetmulticast is the cell reselection parameter associated with the inactive multicast service.

In one embodiment, the terminal can no longer use Qoffset and Qoffsettemp when calculating the R value, but can directly calculate Rs based on Qmeas,s, Qhyst and cell reselection parameters, and calculate the Rn value based on Qmeas,n and cell reselection parameters.

In one embodiment, after the terminal determines the reselection sequence of the first cell based on the cell reselection parameters sent by the network device, the terminal may perform cell reselection only in the first cell based on the determined reselection sequence of the first cell. Regardless of the second cell, reselection to a cell that does not support inactive multicast services is avoided, which is beneficial to ensuring that the terminal can perform inactive multicast services in the reselected cell.

In one embodiment, in addition to determining the first cell reselection sequence based on the cell reselection parameters, the terminal can also determine the second cell reselection sequence based on the cell reselection parameters. However, when determining the reselection sequence of the second cell, it can Taking Qoffsetmulticast in the above equations 1 and 2 as 0, it is equivalent to still following the existing R criterion, determining the Rs value of the second cell by calculating Qmeas,s+Qhyst-Qoffsettemp, and calculating Qmeas,n-Qoffset- Qoffsettemp determines the Rn value of the second cell, so that in the determined cell reselection order, the cell reselection order of the first cell is relatively earlier than the cell reselection order of the second cell.

Since cells and/or frequencies may change whether they support inactive multicast services, a cell and/or frequency that supports inactive multicast services no longer supports inactive multicast services. , if the R value is still calculated according to the above equation 1 and equation 2 to determine the cell reselection sequence, the terminal may preferentially reselect the cell and/or frequency point that no longer supports the inactive multicast service, thus failing to achieve good results. The ground receives multicast services in the inactive state. Therefore, when a frequency point that supports the inactive multicast service no longer supports the inactive multicast service, the terminal needs to perform cell reselection on other frequency points than the frequency point. When a cell that supports inactive multicast services no longer supports inactive multicast services, it is necessary to stop using Qoffsetmulticast and calculate Qmeas,s+Qhyst-Qoffsettemp or Qmeas,n-Qoffset according to the existing R criteria. -Qoffsettemp redetermines the R value of the cell, and redetermines the cell reselection sequence based on the calculated R value for cell reselection.

Figure 7 is a schematic diagram of yet another cell reselection method according to an embodiment of the present disclosure. As shown in Figure 7, the method also includes:

In step 701, capability information reported by a terminal is received, where the capability information is used to indicate whether the terminal supports the capability of inactive multicast services.

Before sending information related to the inactive multicast service to the terminal, the network device can receive the capability information reported by the terminal to indicate whether it supports the inactive multicast service, so that it can determine whether the terminal supports the inactive multicast service based on the capability information reported by the terminal. In the case of inactive multicast service, the terminal is provided with information related to the inactive multicast service so that the terminal can preferentially reselect a cell that supports the inactive multicast service; and when it is determined that the terminal does not support the inactive multicast service In the case of multicast services, there is no need to provide terminals with information related to inactive multicast services, which reduces the occupation of data transmission resources and enables terminals to camp in the cell with the best signal quality according to conventional cell reselection methods.

Corresponding to the foregoing embodiments of the cell reselection method, the present disclosure also provides embodiments of a cell reselection apparatus.

Figure 8 is a schematic block diagram of a cell reselection device according to an exemplary embodiment of the present disclosure. As shown in Figure 8, the device can be applied to terminals, which include but are not limited to electronic devices such as mobile phones, tablet computers, wearable devices, sensors, and Internet of Things devices. The terminal can communicate with base stations as user equipment, and the base stations include but are not limited to 4G base stations, 5G base stations, and 6G base stations.

As shown in Figure 8, the cell reselection device may include:

The communication module 801 is configured to receive inactive multicast service-related information; the processing module 802 is configured to determine reselection information based on the inactive multicast service-related information; and perform cell reselection based on the reselection information. ; Wherein, the processing module is configured to: perform inter-frequency cell reselection according to the reselection information; perform inter-frequency cell reselection according to the reselection information.

Optionally, the reselection information includes at least one of the following: frequency point priority; cell priority; and cell reselection order.

The processing module 802 is configured to determine, based on the inactive multicast service related information, that the priority of the first frequency point that supports the inactive multicast service is higher than that of the first frequency point that does not support the inactive multicast service. the priority of the second frequency point; and/or, according to the information related to the inactive multicast service, determine that the priority of the first cell that supports the inactive multicast service is higher than that of the first cell that does not support the inactive multicast service. The priority of the second cell of the inactive multicast service, and/or determining that the reselection sequence of the first cell is before the reselection sequence of the second cell

Optionally, the inactive multicast service related information includes at least one of the following: inactive multicast service configuration information; support indication information, wherein the support indication information is used to determine that the inactive group is supported. The first cell and/or the first frequency point that broadcasts the service; priority configuration related information, wherein the priority configuration related information is used to determine the priority of the first cell, and/or the priority of the first cell. The reselection order, and/or the priority of the first frequency point.

Optionally, the priority configuration related information includes at least one of the following: frequency point priority information; cell priority information; and cell reselection parameters associated with the inactive multicast service.

Optionally, the processing module 802 is configured to: determine the priority of the first frequency point according to the priority information of the frequency point; and/or determine the first frequency point according to the priority information of the cell. The priority of the cell; and/or, determining the reselection order of the first cell according to the cell reselection parameter.

Corresponding to the foregoing embodiments of the method for sending inactive multicast service-related information, the present disclosure also provides embodiments of an apparatus for sending inactive multicast service-related information.

Figure 9 is a schematic block diagram of a cell reselection device according to an exemplary embodiment of the present disclosure. As shown in Figure 9, this device can be applied to network equipment. The network side equipment can communicate with the terminal. The network side equipment includes but is not limited to base stations in communication systems such as 4G base stations, 5G base stations, and 6G base stations. The terminals include but is not limited to mobile phones, tablet computers, wearable devices, Sensors, IoT devices (such as NB-IoT, MTC, eMTC) and other communication devices.

As shown in Figure 9, the device for sending inactive multicast service-related information may include:

The communication module 901 is configured to send inactive multicast service-related information to the terminal, where the inactive multicast service-related information is used to instruct the terminal to determine to perform inter-frequency operation based on the inactive multicast service-related information. Reselection information of cell reselection and/or cell reselection of different priority frequency points.

Optionally, the reselection information includes at least one of the following: frequency point priority; cell priority; and reselection order.

Optionally, the inactive multicast service related information is used to instruct the terminal to determine that the priority of the first frequency point that supports the inactive multicast service is higher than the priority of the first frequency point that does not support the inactive multicast service. The priority of the second frequency point; and/or, the inactive multicast service related information is used to indicate that the priority of the first cell determined to support the inactive multicast service is higher than that of the first cell that does not support the inactive multicast service. The priority of the second cell that supports the inactive multicast service, and/or the reselection sequence of the first cell that supports the inactive multicast service is in the first cell that does not support the inactive multicast service. before the reselection sequence of the second cell.

Optionally, the priority information of the frequency point is used for the terminal to determine the priority of the first frequency point; and/or the priority information of the cell is used for the terminal to determine the priority of the first frequency point. The priority of a cell; and/or the cell reselection parameters are used for the terminal to determine the reselection sequence of the first cell.

Regarding the devices in the above embodiments, the specific manner in which each module performs operations has been described in detail in the embodiments of the relevant methods, and will not be described in detail here.

As for the device embodiment, since it basically corresponds to the method embodiment, please refer to the partial description of the method embodiment for relevant details. The device embodiments described above are only illustrative. The modules described as separate components may or may not be physically separated. The components shown as modules may or may not be physical modules, that is, they may be located in One place, or it can be distributed to multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Persons of ordinary skill in the art can understand and implement the method without any creative effort.

An embodiment of the present disclosure also provides a communication device, including:

processor;

Memory used to store instructions executable by the processor;

Wherein, the processor is configured to implement the cell reselection method described in any of the above embodiments.

processor;

Memory used to store instructions executable by the processor;

Wherein, the processor is configured to implement the method for sending inactive multicast service-related information described in any of the above embodiments.

Embodiments of the present disclosure also provide a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the steps in the cell reselection method described in any of the above embodiments are implemented.

Embodiments of the present disclosure also provide a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the method for sending inactive multicast service-related information described in any of the above embodiments is implemented. step.

As shown in FIG. 10 , FIG. 10 is a schematic block diagram of an apparatus 1000 for cell reselection and/or sending inactive multicast service-related information according to an embodiment of the present disclosure. The apparatus 1000 may be provided as a base station. Referring to Figure 10, apparatus 1000 includes a processing component 1022, a wireless transmit/receive component 1024, an antenna component 1026, and a signal processing portion specific to the wireless interface. The processing component 1022 may further include one or more processors. One of the processors in the processing component 1022 may be configured to send inactive multicast service-related information to the terminal.

Figure 11 is a schematic block diagram of a terminal 1100 according to an embodiment of the present disclosure. For example, the terminal 1100 may be a mobile phone, a computer, a digital broadcast terminal, a message receiving device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, or the like.

11 , the terminal 1100 may include one or more of the following components: a processing component 1102, a memory 1104, a power supply component 1106, a multimedia component 1108, an audio component 1110, an input/output (I/O) interface 1111, a sensor component 1114, and Communication component 1116.

Processing component 1102 generally controls the overall operations of terminal 1100, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 1102 may include one or more processors 1120 to execute instructions to complete all or part of the above-mentioned cell reselection and/or inactive multicast service related information sending method. Additionally, processing component 1102 may include one or more modules that facilitate interaction between processing component 1102 and other components. For example, processing component 1102 may include a multimedia module to facilitate interaction between multimedia component 1108 and processing component 1102.

Memory 1104 is configured to store various types of data to support operations at terminal 1100 . Examples of such data include instructions for any application or method operating on the terminal 1100, contact data, phonebook data, messages, pictures, videos, etc. Memory 1104 may be implemented by any type of volatile or non-volatile storage device, or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EEPROM), Programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

Power supply component 1106 provides power to various components of terminal 1100. Power supply components 1106 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to terminal 1100 .

Multimedia component 1108 includes a screen that provides an output interface between the terminal 1100 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide action. In some embodiments, multimedia component 1108 includes a front-facing camera and/or a rear-facing camera. When the terminal 1100 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front-facing camera and rear-facing camera can be a fixed optical lens system or have a focal length and optical zoom capabilities.

Audio component 1110 is configured to output and/or input audio signals. For example, audio component 1110 includes a microphone (MIC) configured to receive external audio signals when terminal 1100 is in operating modes, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 1104 or sent via communications component 1116 . In some embodiments, audio component 1110 also includes a speaker for outputting audio signals.

The I/O interface 1111 provides an interface between the processing component 1102 and a peripheral interface module. The peripheral interface module may be a keyboard, a click wheel, a button, etc. These buttons may include, but are not limited to: Home button, Volume buttons, Start button, and Lock button.

Sensor component 1114 includes one or more sensors for providing various aspects of status assessment for terminal 1100 . For example, the sensor component 1114 can detect the open/closed state of the terminal 1100 and the relative positioning of components, such as the display and keypad of the terminal 1100. The sensor component 1114 can also detect the position change of the terminal 1100 or a component of the terminal 1100. , the presence or absence of user contact with the terminal 1100 , the orientation or acceleration/deceleration of the terminal 1100 and the temperature change of the terminal 1100 . Sensor assembly 1114 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 1114 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 1114 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 1116 is configured to facilitate wired or wireless communication between the terminal 1100 and other devices. The terminal 1100 can access a wireless network based on communication standards, such as WiFi, 2G, 3G, 4G LTE, 5G NR or a combination thereof. In one exemplary embodiment, the communication component 1116 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communications component 1116 also includes a near field communications (NFC) module to facilitate short-range communications. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

In an exemplary embodiment, terminal 1100 may be configured by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable Gate array (FPGA), controller, microcontroller, microprocessor or other electronic components are implemented for executing the above cell reselection and/or inactive state multicast service related information sending method.

In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions, such as a memory 1104 including instructions, which can be executed by the processor 1120 of the terminal 1100 to complete the above-described cell reselection and/or is also provided. Method for sending inactive multicast service-related information. For example, the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

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

It is to be understood that the present disclosure is not limited to the precise structures described above and illustrated in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the disclosure is limited only by the appended claims.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations are mutually exclusive. any such actual relationship or sequence exists between them. The terms "comprises," "comprises," or any other variation thereof are intended to cover a non-exclusive inclusion such that a process, method, article or apparatus including a list of elements includes not only those elements but also others not expressly listed elements, or elements inherent to such process, method, article or equipment. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article, or apparatus that includes the stated element.

The methods and devices provided by the embodiments of the present disclosure have been introduced in detail above. Specific examples are used in this article to illustrate the principles and implementations of the present disclosure. The description of the above embodiments is only used to help understand the methods and methods of the present disclosure. The core idea; at the same time, for those of ordinary skill in the art, there will be changes in the specific implementation and application scope based on the ideas of this disclosure. In summary, the content of this description should not be understood as a limitation of this disclosure. .

Claims

A cell reselection method, characterized in that it is suitable for terminals, and the method includes:

Receive inactive multicast service related information;

Determine reselection information based on the inactive multicast service related information;

Perform cell reselection based on the reselection information;

Wherein, the cell reselection based on the reselection information includes at least one of the following:

Perform inter-frequency cell reselection according to the reselection information;

Cell reselection at different priority frequencies is performed based on the reselection information.
The method according to claim 1, characterized in that the reselection information includes at least one of the following:

Frequency priority;

Priority of the community;

The order of reselection of cells.
The method according to claim 2, wherein determining the reselection information based on the inactive multicast service-related information includes:

According to the information related to the inactive multicast service, it is determined that the priority of the first frequency point that supports the inactive multicast service is higher than the priority of the second frequency point that does not support the inactive multicast service. ;

and / or

According to the information related to the inactive multicast service, it is determined that the priority of the first cell that supports the inactive multicast service is higher than the priority of the second cell that does not support the inactive multicast service. , and/or determine that the reselection sequence of the first cell is before the reselection sequence of the second cell.
The method according to claim 2, characterized in that the inactive multicast service related information includes at least one of the following:

Inactive multicast service configuration information;

Support indication information, wherein the support indication information is used to determine the first cell and/or the first frequency point that supports the inactive multicast service;

Priority configuration related information, wherein the priority configuration related information is used to determine the priority of the first cell, and/or the reselection order of the first cell, and/or the first frequency point priority.
The method according to claim 4, characterized in that the priority configuration related information includes at least one of the following:

Frequency priority information;

Priority information of the cell;

Cell reselection parameters associated with the inactive multicast service.
The method of claim 5, wherein determining the reselection information based on the inactive multicast service-related information includes:

Determine the priority of the first frequency point according to the priority information of the frequency point;

and / or

Determine the priority of the first cell according to the priority information of the cell;

and / or

The reselection sequence of the first cell is determined according to the cell reselection parameter.
A method for sending inactive multicast service-related information, characterized in that it is suitable for network equipment, and the method includes:

Send inactive multicast service related information to the terminal, where the inactive multicast service related information is used to instruct the terminal to determine to perform inter-frequency cell reselection and/or inter-frequency cell reselection based on the inactive multicast service related information. Reselection information of priority frequency cell reselection.
The method according to claim 7, characterized in that the reselection information includes at least one of the following:

Frequency priority;

Priority of the community;

Reselect order.
The method according to claim 8, characterized in that the inactive multicast service related information is used to instruct the terminal to determine that the priority of the first frequency point that supports the inactive multicast service is higher than that of the first frequency point that does not support the inactive multicast service. Describe the priority of the second frequency point of the inactive multicast service;

and / or

The inactive multicast service related information is used to indicate that the first cell determined to support the inactive multicast service has a higher priority than the second cell that does not support the inactive multicast service. priority, and/or the reselection sequence of the first cell that supports the inactive multicast service is before the reselection sequence of the second cell that does not support the inactive multicast service.
The method according to claim 8, characterized in that the inactive multicast service related information includes at least one of the following:

Inactive multicast service configuration information;

Support indication information, wherein the support indication information is used to determine the first cell and/or the first frequency point that supports the inactive multicast service;

Priority configuration related information, wherein the priority configuration related information is used to determine the priority of the first cell, and/or the reselection order of the first cell, and/or the first frequency point priority.
The method according to claim 10, characterized in that the priority configuration related information includes at least one of the following:

Frequency priority information;

Priority information of the cell;

Cell reselection parameters associated with the inactive multicast service.
The method according to claim 11, characterized in that the priority information of the frequency point is used for the terminal to determine the priority of the first frequency point;

and / or

The priority information of the cell is used for the terminal to determine the priority of the first cell;

and / or

The cell reselection parameters are used for the terminal to determine the reselection sequence of the first cell.
A cell reselection device, characterized in that it is suitable for terminals, and the device includes:

The communication module is configured to receive inactive multicast service-related information;

a processing module configured to determine reselection information based on the inactive multicast service related information; and perform inter-frequency cell reselection based on the reselection information;

Wherein, the processing module is configured as:

Perform inter-frequency cell reselection according to the reselection information;

Cell reselection at different priority frequencies is performed based on the reselection information.
A device for sending information related to inactive multicast services, which is characterized in that it is suitable for network equipment, and the device includes:

The communication device is configured to send inactive multicast service-related information to the terminal, wherein the inactive multicast service-related information is used to instruct the terminal to determine an inter-frequency cell based on the inactive multicast service-related information. Reselection information of reselection and/or cell reselection of different priority frequency points.
A terminal, characterized by including:

processor;

Memory used to store computer programs;

Wherein, when the computer program is executed by a processor, the cell reselection method described in any one of claims 1 to 6 is implemented.
A terminal, characterized by including:

processor;

Memory used to store computer programs;

Wherein, when the computer program is executed by the processor, the inactive multicast service related information sending method described in any one of claims 7 to 12 is implemented.
A computer-readable storage medium used to store a computer program, characterized in that when the computer program is executed by a processor, the steps in the cell reselection method described in any one of claims 1 to 6 are implemented.
A computer-readable storage medium for storing a computer program, characterized in that when the computer program is executed by a processor, the inactive multicast service-related information described in any one of claims 7 to 12 is realized Steps in the sending method.