CN109600808B

CN109600808B - Cell selection method, terminal and network side equipment

Info

Publication number: CN109600808B
Application number: CN201910023224.7A
Authority: CN
Inventors: 叶瑜龙; 杨飞; 原晓坤
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2019-01-10
Filing date: 2019-01-10
Publication date: 2021-06-18
Anticipated expiration: 2039-01-10
Also published as: CN109600808A

Abstract

The invention provides a cell selection method, a terminal and network side equipment. The cell selection method applied to the terminal comprises the following steps: receiving a first service state measurement value of a first candidate cell sent by first network side equipment; executing target operation of cell selection according to the first service state measurement value; the first candidate cell is determined according to a physical parameter measurement value of the cell, or is specified by second network side equipment; the first traffic state measurement is used to characterize the traffic state of the first candidate cell. Therefore, compared with the existing cell selection method, the embodiment of the invention can also execute the target operation of cell selection based on the first service measurement value for representing the service state of the first candidate cell, thereby improving the reliability of the selected cell and further improving the cell selection effect.

Description

Cell selection method, terminal and network side equipment

Technical Field

The embodiment of the invention relates to the technical field of communication, in particular to a cell selection method, a terminal and network side equipment.

Background

In a mobile communication system, a terminal may communicate with other devices through a network. Therefore, in order to realize communication with other devices, the terminal in an idle state may initiate cell selection and cell reselection to successfully connect a certain cell and then access a network; in order to improve the communication quality with other devices, the connected terminal may perform cell switching to select a suitable cell for switching to.

According to the 3rd Generation Partnership Project (3 GPP) protocol, the cell selection of the terminal strictly follows the S criterion, the cell reselection strictly follows the R criterion, and the cell handover reports the measurement result of the measurement event strictly following the measurement event threshold condition.

At present, the terminal performs cell selection based on the measured values of physical parameters such as signal strength and signal quality, and the effect is poor.

Disclosure of Invention

The embodiment of the invention provides a cell selection method, a terminal and network side equipment, which aim to solve the problem that the existing terminal has poor effect when performing cell selection based on a physical parameter measurement value.

In order to solve the problems, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a cell selection method, which is applied to a terminal, and the method includes:

receiving a first service state measurement value of a first candidate cell sent by first network side equipment;

executing target operation of cell selection according to the first service state measurement value;

the first candidate cell is determined according to a physical parameter measurement value of the cell, or is specified by second network side equipment; the first traffic state measurement is used to characterize the traffic state of the first candidate cell.

In a second aspect, an embodiment of the present invention provides a cell selection method, which is applied to a network side device, and the method includes:

receiving a second message sent by a terminal side, wherein the second message comprises identification information of a first candidate cell and service information of a target service of the first candidate cell in a target time period;

generating service state information according to the second message, wherein the service state information comprises a first service state measurement value of the first candidate cell;

and sending the first service state measurement value of the first candidate cell to a target terminal.

In a third aspect, an embodiment of the present invention further provides a terminal, where the terminal includes:

a first receiving module, configured to receive a first service state measurement value of a first candidate cell sent by a first network side device;

the execution module is used for executing target operation of cell selection according to the first service state measurement value;

Optionally, in the process of cell selection or cell reselection, the terminal further includes:

the first obtaining module is used for obtaining a first physical parameter measurement value of a second candidate cell before receiving a first service state measurement value of the first candidate cell sent by first network side equipment;

a selection module configured to select the first candidate cell from the second candidate cells according to the first physical parameter measurement value.

Optionally, the selecting module includes:

a first determining sub-module, configured to determine a measurement energy value of the second candidate cell according to the first physical parameter measurement value;

a first selection submodule, configured to select, according to the measurement energy value, N cells that meet a cell selection criterion or a cell reselection criterion from the second candidate cells, where N is a positive integer;

and the second selection submodule is used for selecting the first candidate cell from the N cells according to the measurement energy values of the N cells.

Optionally, the second selection sub-module includes:

a first determining unit configured to determine a maximum value among the measurement energy values of the N cells as a target measurement energy value;

a second determining unit, configured to determine, as the first candidate cell, a cell corresponding to a measurement energy value, of the measurement energy values of the N cells, where a difference between the measurement energy value and the target measurement energy value is smaller than a first preset value.

Optionally, the execution module is specifically configured to:

sending a connection request message to a first target cell of the first candidate cells;

wherein the first traffic state measurement value of the first target cell is greater than the first traffic state measurement values of other cells of the first candidate cell except the first target cell.

Optionally, in the cell reselection process, the terminal further includes:

an adjusting module, configured to adjust a reselection interval time of the first target cell according to the first service state measurement value;

the execution module is specifically configured to:

sending a connection request message to the first target cell upon reaching the adjusted reselection interval time for the first target cell.

Optionally, the execution module includes:

an adjusting submodule, configured to adjust a reselection interval time of a second target cell in the first candidate cell according to the first service state measurement value;

a sending submodule, configured to send a connection request message to the second target cell when the adjusted reselection interval time of the second target cell is reached;

wherein the measurement energy value of the second target cell is greater than the measurement energy values of the other cells of the first candidate cell except the second target cell.

Optionally, in the process of cell handover, the terminal further includes:

a second obtaining module, configured to obtain a first target value of the first candidate cell and a second service state measurement value of a serving cell of the terminal before performing a target operation of cell selection according to the first service state measurement value, where the first target value includes a second physical parameter measurement value and/or a trigger time;

the execution module includes:

a generation submodule, configured to generate a second target value according to the first service state measurement value, the second service state measurement value, and the first target value;

the execution submodule is used for determining whether to send a measurement report to the second network side equipment or not according to the second target value;

wherein, in a case where the first target value includes the second physical parameter measurement value, the second target value includes a first sub-value corresponding to the second physical parameter measurement value; in a case where the first target value includes the trigger time, the second target value includes a second sub-value corresponding to the trigger time.

Optionally, when the first target value includes the second physical parameter measurement value, the generating sub-module is specifically configured to:

determining a sum of a second physical parameter measurement value and an offset value of a first cell of the first candidate cell as a first sub-value of the first cell when a first traffic state measurement value of the first cell is greater than a second traffic state measurement value and a difference between the first traffic state measurement value and the second traffic state measurement value of the first cell is greater than a second preset value; alternatively, the first and second electrodes may be,

and determining a difference between a second physical parameter measurement value and an offset value of the first cell as a first sub-value of the first cell when the first traffic state measurement value of the first cell of the first candidate cell is smaller than the second traffic state measurement value and the difference between the first traffic state measurement value and the second traffic state measurement value of the first cell is larger than a third preset value.

Optionally, the execution module includes:

the first comparison submodule is used for comparing a first sub-value of the first cell with a physical parameter measurement threshold value to obtain a first comparison result;

and the second determining submodule is used for determining whether to send a measurement report to the second network side equipment or not according to the first comparison result.

Optionally, when the first target value includes the trigger time, the generating sub-module is specifically configured to:

determining a difference value between a trigger time and a time preset value of a first cell as a second sub-value of the first cell under the condition that a first traffic state measurement value of the first cell of the first candidate cell is greater than a second traffic state measurement value and the difference value between the first traffic state measurement value and the second traffic state measurement value of the first cell is greater than a second preset value; alternatively, the first and second electrodes may be,

and determining a sum of the trigger time and the time preset value of the first cell as a second sub-value of the first cell under the condition that the first traffic state measurement value of the first cell of the first candidate cell is smaller than the second traffic state measurement value and the difference between the first traffic state measurement value and the second traffic state measurement value of the first cell is larger than a third preset value.

Optionally, the execution module includes:

the second comparison submodule is used for comparing a second sub-value of the first cell with a trigger time threshold value to obtain a second comparison result;

and the third determining submodule is used for determining whether to send a measurement report to the second network side equipment or not according to the second comparison result.

Optionally, the terminal further includes:

a first sending module, configured to send a first message to a first network side device before receiving a first service state measurement value of a first candidate cell sent by the first network side device, where the first message includes identification information of the first candidate cell and identification information of a serving cell of the terminal.

In a fourth aspect, an embodiment of the present invention further provides a network side device, where the network side device includes:

a second receiving module, configured to receive a second message sent by a terminal side, where the second message includes identification information of a first candidate cell and service information of a target service of the first candidate cell in a target time period;

a generating module, configured to generate service state information according to the second message, where the service state information includes a first service state measurement value of the first candidate cell;

optionally, the second message further includes a second service state measurement value of a serving cell of the target terminal;

the network side device further includes:

a third receiving module, configured to receive a first message sent by a target terminal after generating service state information according to the second message and before sending a first service state measurement value of the first candidate cell to the target terminal, where the first message includes identification information of the first candidate cell and identification information of a serving cell of the target terminal;

an adjusting module, configured to adjust a first traffic state measurement value of the first candidate cell and/or a second traffic state measurement value of a serving cell of the target terminal according to the first message;

the second sending module is specifically configured to:

and sending the adjusted first service state measurement value of the first candidate cell and/or the second service state measurement value of the serving cell of the target terminal to the target terminal.

And the second sending module is used for sending the first service state measured value of the first candidate cell to the target terminal.

In a fifth aspect, an embodiment of the present invention further provides a terminal, where the terminal includes a processor, a memory, and a computer program stored in the memory and being executable on the processor, and the computer program, when executed by the processor, implements the steps of the cell selection method described above.

In a sixth aspect, an embodiment of the present invention further provides a network-side device, where the network-side device includes a processor, a memory, and a computer program stored in the memory and operable on the processor, and when the computer program is executed by the processor, the steps of the cell selection method are implemented.

In a seventh aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and the computer program, when executed by a processor, implements the steps of the cell selection method described above or the steps of the cell selection method described above.

In the embodiment of the invention, a terminal receives a first service state measurement value of a first candidate cell sent by first network side equipment; executing target operation of cell selection according to the first service state measurement value; the first candidate cell is determined according to a physical parameter measurement value of the cell, or is specified by second network side equipment; the first traffic state measurement is used to characterize the traffic state of the first candidate cell. Therefore, compared with the existing cell selection method, the embodiment of the invention can also execute the target operation of cell selection based on the first service measurement value for representing the service state of the first candidate cell, thereby improving the reliability of the selected cell and further improving the cell selection effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a block diagram of a network system to which an embodiment of the present invention is applicable;

fig. 2 is a flowchart of a cell selection method according to an embodiment of the present invention;

fig. 3 is a second flowchart of a cell selection method according to an embodiment of the present invention;

fig. 4 is a third flowchart of a cell selection method according to an embodiment of the present invention;

fig. 5a is a fourth flowchart of a cell selection method according to an embodiment of the present invention;

fig. 5b is a fifth flowchart of a cell selection method according to an embodiment of the present invention;

fig. 5c is a sixth flowchart of a cell selection method according to an embodiment of the present invention;

fig. 6 is one of the structural diagrams of a terminal provided in the embodiment of the present invention;

fig. 7 is one of the structural diagrams of the network side device according to the embodiment of the present invention;

fig. 8 is a second structural diagram of a terminal according to an embodiment of the present invention;

fig. 9 is a second structural diagram of a network-side device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terms "first," "second," and the like in this application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Further, as used herein, "and/or" means at least one of the connected objects, e.g., a and/or B and/or C, means 7 cases including a alone, B alone, C alone, and both a and B present, B and C present, both a and C present, and A, B and C present.

Referring to fig. 1, fig. 1 is a structural diagram of a network system to which an embodiment of the present invention is applicable, and as shown in fig. 1, the network system includes a terminal 11 and a network-side device 12, where the terminal 11 and the network-side device 12 can communicate with each other.

In the embodiment of the present invention, the terminal 11 may be a terminal-side Device such as a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or a vehicle-mounted Device, and it should be noted that a specific type of the terminal 11 is not limited in the embodiment of the present invention.

The network-side device 12 may include at least one of: RAN (Radio Access Network) Network elements, and CN (Core Network) Network elements. In a specific implementation, the network-side device 12 may be a base station, or the network-side device 12 may be a server, but is not limited thereto. Further, the base station may be a base station in an LTE (Long Term Evolution) system, or a base station of 5G and later releases (e.g., 5G NR NB), or a base station in other communication systems (e.g., an eNB (evolved Node B), and it should be noted that a specific type of the network-side device 12 is not limited in this embodiment of the present invention.

The cell selection method according to the embodiment of the present invention is explained below.

Referring to fig. 2, fig. 2 is a flowchart of a cell selection method according to an embodiment of the present invention. The cell selection method of the present embodiment may be applied to a terminal. The terminal may be a terminal in an idle state (hereinafter referred to as an idle-state terminal) or a terminal in a connected state (hereinafter referred to as a connected-state terminal).

The idle terminal may initiate a cell selection or cell reselection procedure, and accordingly, the cell selection method may be applied to a cell selection or cell reselection process; the connected terminal may initiate a cell handover procedure, and accordingly, the cell selection method may be applied to a cell handover procedure.

As shown in fig. 2, the cell selection method may include the steps of:

step 201, receiving a first service state measurement value of a first candidate cell sent by a first network side device.

The first candidate cell is determined according to the physical parameter measurement value of the cell, or is specified by the second network side device. In the present embodiment, the physical parameter measurement may include, but is not limited to, at least one of the following: a measurement of RSRP (Reference Signal Receiving Power); a measurement value of RSRQ (Reference Signal Receiving Quality).

In a specific implementation, in a cell selection or cell reselection process, the first candidate cell may be determined according to a measured value of a physical parameter of a cell; in a cell handover procedure, the first candidate cell may be specified by a second network side device. The second network side device may be represented as a base station.

The first traffic state measurement may be used to characterize the traffic state of the first candidate cell. In practical applications, the first traffic measurement value may be expressed as a score or a grade, etc. It should be noted that the traffic state measurement value of the cell is positively correlated with the traffic state of the cell. That is, the larger the traffic state measurement value of a cell, the better the traffic state of the cell is.

In practical application, the first network side device may generate in advance service state information including the first service state measurement value of the first candidate cell, and then send the generated service state information to the terminal. It should be understood that the present embodiment does not limit the manner in which the first network-side device generates the service status information.

The first network-side device may be a server, and further, the server may be integrated in the base station, or may be integrated in the core network device, which may be determined according to actual needs.

Step 202, according to the first service state measurement value, executing target operation of cell selection.

In a specific implementation process, in the cell selection process, the idle-state terminal may determine, according to the first service state measurement value, a sequence in which the terminal sends the connection request message to the first candidate cell.

In the process of cell reselection, the idle terminal may determine, according to the first service state measurement value, a sequence in which the terminal sends a connection request message to the first candidate cell; and/or the idle terminal may adjust the reselection interval time of each cell in the first candidate cell according to the first traffic state measurement value.

In the cell switching process, the connected terminal may determine whether to send a measurement report to the second network side device according to the first service state measurement value.

In the cell selection method of this embodiment, a terminal receives a first service state measurement value of a first candidate cell sent by a first network side device; executing target operation of cell selection according to the first service state measurement value; the first candidate cell is determined according to a physical parameter measurement value of the cell, or is specified by second network side equipment; the first traffic state measurement is used to characterize the traffic state of the first candidate cell. Therefore, compared with the existing cell selection method, the embodiment of the invention can also execute the target operation of cell selection based on the first service measurement value for representing the service state of the first candidate cell, thereby improving the reliability of the selected cell and further improving the cell selection effect.

As can be seen from the foregoing, the manner in which the terminal determines the first candidate cell during cell selection or cell reselection, and the target operation of cell selection performed according to the first service state measurement value, are different from those during cell handover. Therefore, the cell selection method will be described below with respect to a cell selection or cell reselection procedure and a cell handover procedure, respectively.

Scenario one, cell selection or cell reselection.

In scenario one, the terminal is an idle terminal. The first candidate cell may be determined from physical parameter measurements of the cells. Optionally, before receiving the first service state measurement value of the first candidate cell sent by the first network side device, the method further includes:

obtaining a first physical parameter measurement value of a second candidate cell;

selecting the first candidate cell from the second candidate cells based on the first physical parameter measurement.

In specific implementation, the terminal may measure the second candidate cell to obtain a physical parameter measurement value of the second candidate cell, and record the physical parameter measurement value as the first physical parameter measurement value.

The first candidate cell may then be selected from the second candidate cells based on the first physical parameter measurement. It should be understood that the first candidate cell is part or all of the second candidate cells.

In a specific implementation, in an implementation, the terminal may preset a physical parameter measurement threshold, and determine a cell in which a physical parameter measurement value in the second candidate cell is greater than the physical parameter measurement threshold as the first candidate cell. The physical parameter measurement threshold value may be preset according to actual conditions, and is not limited in the embodiment of the present invention.

In another embodiment, the terminal may select, in advance, N cells meeting a cell selection criterion or a cell reselection criterion from the second candidate cells according to the first physical parameter value, and further select the first candidate cell from the N cells according to a measurement energy value corresponding to the first physical parameter measurement value.

Optionally, the selecting the first candidate cell from the second candidate cells according to the first physical parameter measurement value may include:

determining a measurement energy value of the second candidate cell according to the first physical parameter measurement value;

selecting N cells meeting a cell selection criterion or a cell reselection criterion from the second candidate cells according to the measurement energy value, wherein N is a positive integer;

selecting the first candidate cell from the N cells according to the measurement energy values of the N cells.

In specific implementation, the terminal may obtain a corresponding relationship between the physical parameter measurement value and the measurement energy value in advance, so that after the first physical parameter measurement value is obtained, the measurement energy value of each candidate cell in the second candidate cell may be determined by searching the corresponding relationship.

It should be noted that the measured value of the physical parameter of the cell is positively correlated with the measured energy value of the cell. That is, the larger the physical parameter measurement value of the cell, the larger the measurement energy value of the cell.

In addition, the measured energy value can be used to characterize the measured energy of the cell, and the measured energy value of the cell is positively correlated with the measured energy of the cell. That is, the larger the measurement energy value of the cell, the higher the measurement energy of the cell.

In the process of cell selection, the terminal may select, according to the measurement energy value, N cells that meet a cell selection criterion, such as an S criterion, from the second candidate cells; during cell reselection, the terminal may select N cells that meet a cell reselection criterion, such as an R criterion, from the second candidate cells according to the measurement energy value.

And then, selecting the first candidate cell from the N cells according to the measurement energy values of the N cells. Optionally, the selecting the first candidate cell from the N cells according to the measured energy values of the N cells may include:

determining a maximum value of the measurement energy values of the N cells as a target measurement energy value;

and determining the cell corresponding to the measurement energy value of which the difference value with the target measurement energy value is smaller than a first preset value in the measurement energy values of the N cells as the first candidate cell.

In a specific implementation, the terminal may perform cell sorting according to the measurement energy values of the N cells, traverse the target measurement energy value and other measurement energy values except the target measurement energy value among the measurement energy values of the N cells according to a sorting result, and determine a cell corresponding to a measurement energy value whose difference between the measurement energy value of the N cells and the target measurement energy value is smaller than a first preset value (which may be denoted as Min Power) as a first candidate cell.

The measured energy threshold value may be preset according to the actual situation, which is not limited in the embodiment of the present invention. Additionally, it should be understood that the number of first candidate cells may be less than or equal to N.

Of course, the terminal may also preset a measurement energy threshold, and determine a cell, of the N cells, whose measurement energy is greater than the measurement energy threshold, as the first candidate cell, but is not limited thereto. The measured energy threshold value may be preset according to the actual situation, which is not limited in the embodiment of the present invention.

As can be seen, in scenario one, the terminal may select a first candidate cell from the second candidate cells according to the first physical parameter measurement value of the second candidate cell, and further perform a target operation of cell selection based on the first traffic state measurement value of the first candidate cell. Compared with the prior art that the cell selection is directly performed according to the physical parameter measurement value of the first candidate cell, the target operation of the cell selection can be further executed by combining the first service state measurement value of the first candidate cell in the scene, so that the reliability of the selected cell can be improved, and the cell selection effect can be further improved.

The following describes the specific steps performed by the terminal in this scenario, namely, performing the target operation of cell selection according to the first traffic state measurement value.

Implementation mode one

Optionally, in the process of cell selection or cell reselection, the performing, according to the first service state measurement value, a target operation of cell selection may specifically be:

In this embodiment, the first traffic state measurement value may be used to determine the first target cell.

In a specific implementation, in a cell selection or cell reselection process, the terminal may rank the first candidate cells according to the first service state measurement value, and execute a subsequent process of cell selection or cell reselection according to a ranking result.

For example, the terminal may sequentially send the connection request messages to the first candidate cells according to a descending order of the first traffic state measurement value of each cell in the first candidate cells. In this implementation, the terminal may preferentially send the connection request message to the first target cell corresponding to the maximum value of the first traffic state measurement value in the first candidate cell.

If the terminal is successfully accessed to the first target cell, the cell selection or cell reselection process can be ended; if the terminal does not successfully access the first target cell, the terminal may continue to send the connection request message to the cell corresponding to the first service state measurement value arranged at the second position in the arrangement sequence, and so on until the terminal successfully accesses a certain cell in the first candidate cells, or the terminal does not successfully access any candidate cell in the first candidate cells.

In this embodiment, the terminal may preferentially send the connection request message to the first target cell corresponding to the maximum value of the first service state measurement value in the first candidate cell, so as to further improve the reliability of the selected cell, and further improve the cell selection effect.

Second embodiment

Optionally, in a cell reselection process, the performing, according to the first service state measurement value, a target operation of cell selection may specifically be:

adjusting the reselection interval time of a second target cell in the first candidate cell according to the first service state measurement value;

sending a connection request message to the second target cell when the adjusted reselection interval time of the second target cell is reached;

In this embodiment, in the cell reselection process, the terminal ranks the cells included in the first candidate cell according to the measurement energy value of each cell in the first candidate cell, and executes the subsequent process of cell reselection according to the ranking result.

For example, the terminal may sequentially send the connection request messages to the first candidate cells according to an order of a large measured energy value to a small measured energy value of each of the first candidate cells. In this implementation, the terminal may preferentially send the connection request message to the second target cell corresponding to the maximum value of the measurement energy values in the first candidate cell.

If the terminal successfully accesses the second target cell, the cell reselection process can be ended; if the terminal does not successfully access the second target cell, the terminal may continue to send the connection request message to the cell corresponding to the first service state measurement value arranged at the second position in the arrangement sequence, and so on until the terminal successfully accesses a certain cell in the first candidate cells, or the terminal does not successfully access any candidate cell in the first candidate cells.

It can be seen that, unlike the first embodiment in which the first target cell is determined from the first candidate cells according to the first traffic state measurement value, this embodiment may determine the second target cell from the first candidate cells directly according to the measurement value without considering the first traffic state measurement value.

In this embodiment, the first traffic state measurement value may be used to adjust a Reselection interval (T-Reselection) time of each of the first candidate cells.

Therefore, in this embodiment, before sending the connection request message to the second target cell, the terminal may further adjust the reselection interval time of the second target cell in the first candidate cell according to the first traffic state measurement value, and further may send the connection request message to the second target cell when the adjusted reselection interval time of the second target cell is reached.

In a specific implementation, the terminal may preset a service state measurement threshold, and may further adjust the reselection interval time of each cell in the first candidate cell according to a comparison result between the service state measurement value of each cell in the first candidate cell and the service state measurement threshold.

Specifically, if the service state measurement value of the second target cell is greater than the service state measurement threshold, which indicates that the service state of the second target cell is better, the reselection interval time adjusted by the second target cell may be obtained by subtracting a fourth preset value from the initial reselection interval time of the second target cell, that is, the reselection interval of the second target cell is shortened. Therefore, the waiting time for the terminal to send the connection request message to the second target cell can be shortened, and the cell access efficiency is improved.

If the service state measurement value of the second target cell is smaller than the service state measurement threshold, which indicates that the service state of the second target cell is poor, the initial reselection interval time of the second target cell may be added to a fourth preset value, so as to obtain the reselection interval time adjusted by the second target cell, that is, the reselection interval of the second target cell is prolonged. In this way, the waiting time for the terminal to send the connection request message to the second target cell can be prolonged.

It should be noted that the initial reselection time interval of the cell may be configured by the second network-side device, but is not limited thereto. The fourth preset value is smaller than the initial reselection interval, and a specific value of the fourth preset value may be set according to an actual requirement, for example, may be 0.5 times of the initial reselection interval, or 1 second.

In addition, for other cells than the second target cell in the first candidate cell, the reselection interval time of the cell may also be adjusted according to the above-mentioned manner.

In this embodiment, the terminal may adjust the reselection time interval of the cell according to the first service state measurement value, so as to improve flexibility of determining the connection request message sending time.

In practical applications, in a cell reselection process, the first embodiment and the second embodiment may be implemented independently, or may be implemented in combination. In an application scenario implemented by combining the first embodiment with the second embodiment, the first service state measurement value may be used to determine the first target cell, and may also be used to adjust a reselection interval time of the first target cell.

In this application scenario, on the basis of the first embodiment, in a cell reselection process, before further sending the connection request message to the first target cell in the first candidate cell, the method further includes:

adjusting the reselection interval time of the first target cell according to the first service state measurement value;

the sending a connection request message to a first target cell of the first candidate cells includes:

The implementation principle of the terminal "adjusting the reselection interval time of the first target cell according to the first service state measurement value" may refer to the related description in embodiment two, and is not described herein again.

It should be understood that, in this application scenario, the first traffic state measurement value of the first target cell is greater than the first traffic state measurement values of the other cells except for the first target cell in the first candidate cell, and therefore, in practical applications, the preset traffic state measurement threshold may be smaller than the first traffic state measurement value of the first target cell.

In this way, the terminal may shorten the reselection interval time of the first target cell, and send the connection request message to the first target cell when the adjusted reselection interval time of the first target cell is reached, so that the waiting time for the terminal to send the connection request message to the first target cell may be shortened, and the cell access efficiency may be improved.

Therefore, in the application scenario, the terminal executes the target operation of cell selection according to the first service state measurement value, which not only can improve the reliability of the selected cell and further improve the cell selection effect, but also can shorten the waiting time for the terminal to send the connection request message to the first target cell and improve the cell access efficiency.

And scene two, cell switching.

In the second scenario, the terminal is a connected terminal.

In the process of cell handover, optionally, before performing the target operation of cell selection according to the first service state measurement value, the method further includes:

acquiring a first target value of the first candidate cell and a second service state measurement value of a service cell of the terminal, wherein the first target value comprises a second physical parameter measurement value and/or trigger time;

the performing a target operation of cell selection according to the first traffic state measurement value includes:

generating a second target value according to the first service state measurement value, the second service state measurement value and the first target value;

determining whether to send a measurement report to the second network side device according to the second target value;

In this scenario, the first candidate cell may be specified by the second network side device. In specific implementation, the second network side device may issue an RRC (Radio Resource Control) connection reconfiguration message to the terminal, so as to instruct the terminal to measure the first candidate cell, obtain a physical parameter measurement value of the first candidate cell, and record the physical parameter measurement value as a second physical parameter measurement value. In practical applications, the number of first candidate cells may be greater than or equal to 1.

Wherein the first target value may include, but is not limited to, the second physical parameter measurement value and/or the trigger time. During specific implementation, the terminal can obtain a second physical parameter measurement value of each cell in the first candidate cell in a detection mode; the terminal may obtain the trigger time of each cell in the first candidate cell in a receiving manner.

In addition, for the second service state measurement value of the serving cell of the terminal, the terminal may obtain the second service state measurement value of the serving cell of the terminal in a receiving manner, for example, the second service state measurement value of the serving cell of the terminal sent by the first network side device may be received.

It should be understood that each of the first candidate cells corresponds to a first traffic state measurement value, a first target value, and a second target value, respectively.

In a specific implementation, for each cell in the first candidate cell, the terminal may generate, according to a comparison result between the first traffic measurement value of the cell and the second traffic state measurement value of the serving cell of the terminal, the second target value of the cell in combination with the first target value of the cell. That is, each of the first candidate cells corresponds to a second target value, and the number of the second target values generated by the terminal is equal to the number of the first candidate cells.

After that, the terminal may determine whether to send a measurement report to the second network side device according to the second target value of each cell in the first candidate cells.

As can be seen, in scenario two, the terminal may perform a target operation of cell selection according to the first traffic state measurement value of the first candidate cell, the first target value of the first candidate cell, and the second traffic state measurement value of the serving cell of the terminal. Compared with the prior art that the cell selection is directly performed according to the physical parameter measurement value of the first candidate cell, the target operation of the cell selection can be further executed by further combining the service state measurement values of the first candidate cell and the service cell of the terminal, so that the reliability of the selected cell can be improved, and the cell selection effect can be further improved.

In scenario two, the second target value may include the first sub-value and/or the second sub-value, and the concrete form of the second target value is related to the concrete form of the first target value. In particular, in the case where the first target value comprises the second physical parameter measurement value, the second target value comprises a first sub-value corresponding to the second physical parameter measurement value; in a case where the first target value includes the trigger time, the second target value includes a second sub-value corresponding to the trigger time.

In the following, the description will be made of "generating a second target based on the first traffic state measurement value, the second traffic state measurement value, and the second physical parameter measurement value" performed by the terminal according to the specific expression of the first target value.

In expression one, the first target value comprises only the second physical parameter measurement value.

Optionally, the generating a second target value according to the first service state measurement value, the second service state measurement value, and the first target value may specifically be as follows:

The second preset value (which may be recorded as Max Power), the third preset value (which may be recorded as Min Power), and the offset value (which may be recorded as setter Threshold) are greater than 0, and specific values may be preset according to actual requirements, which is not limited in the embodiment of the present invention.

In addition, if the difference between the first service state measurement value and the second service state measurement value of the first cell is between the second preset value and the third preset value, the terminal may directly determine the second physical parameter measurement value of the first cell as the first sub-value of the first cell.

It should be noted that the first cell may be any cell in the first candidate cell. In a specific implementation, for any cell of the first candidate cells, the corresponding first sub-value may be generated in the above manner.

After that, the terminal may determine whether to send a measurement report to the second network-side device according to the generated first sub-value. Optionally, the determining, according to the second target value, whether to send the measurement report to the second network-side device includes:

comparing the first sub-value of the first cell with a physical parameter measurement threshold value to obtain a first comparison result;

and determining whether to send a measurement report to the second network side equipment or not according to the first comparison result.

It should be noted that the physical parameter measurement threshold for the first sub-value comparison may be the same or different for different cells in the first candidate cell.

For example, assuming that the first candidate cell includes cell 1, cell 2, cell 3, and cell 4, the measurement event triggering the second network-side device to issue the cell-switching RRC connection reconfiguration message is an A3 event, and includes a first A3 event and a second A3 event. If the first a3 event includes the identifier of cell 1, the identifier of cell 2, and the first physical parameter measurement threshold, and the cell 1, the cell 2, and the first physical parameter measurement threshold have an association relationship, then the first sub-value of the first physical parameter measurement threshold is compared with the first physical parameter measurement threshold for cell 1 and cell 2. If the second a3 event includes the identifier of the cell 3, the identifier of the cell 4, and the second physical parameter measurement threshold, and the cell 3, the cell 4, and the second physical parameter measurement threshold have an association relationship, the first sub-value of the first physical parameter measurement threshold is compared with the second physical parameter measurement threshold for the cell 1 and the cell 2.

In a specific implementation, if the first comparison result is that the first sub-value of the first cell is greater than or equal to the physical parameter measurement threshold associated therewith, the terminal may determine to send a measurement report to the second network side device, and carry relevant information of the first cell, such as identification information, service state measurement information, physical parameter measurement information, and the like, in the measurement report.

If the first comparison result is that the first sub-value of the first cell is smaller than the physical parameter measurement threshold associated with the first sub-value, the terminal may compare the first sub-value of the other cells except the first cell in the first candidate cell with the physical parameter measurement threshold, and determine whether to send a measurement report to the second network side device according to the comparison result.

It should be understood that, if the first sub-values of all the cells in the first candidate cell are smaller than the associated physical parameter measurement threshold, the terminal may give up sending the measurement report to the second network-side device.

It can be seen that, in an application scenario where the first target value only includes the second physical parameter measurement value, the terminal may generate the first sub-value by combining the second physical parameter measurement value of the first cell according to a first comparison result between the first service measurement value of the first cell and the second service status measurement value of the serving cell of the terminal. Then, the first sub-value of the first cell may be compared with the physical parameter measurement threshold, and after the first sub-value is greater than or equal to the physical parameter measurement threshold, a measurement report may be sent to the second network side device, so that the second network side device may decide whether to instruct the terminal to perform cell handover operation based on the measurement report reported by the terminal. Therefore, compared with the prior art that the terminal determines whether to send the measurement report to the second network side device directly based on the comparison result between the physical parameter measurement value and the physical parameter measurement threshold value of the cell, the terminal provided by the invention can intervene the measurement event reporting process based on the service state of the cell, so that the reliability of the selected cell can be improved, and the cell selection effect can be further improved.

In expression two, the first target value only includes the Trigger Time (Time To Trigger, TTT).

The second preset value (which may be recorded as Max Power), the third preset value (which may be recorded as Min Power), and the time preset value are greater than 0, and specific values may be preset according to actual requirements, which is not limited in the embodiment of the present invention. Illustratively, the time preset value may be 0.5 times the trigger time, or 1 second, etc.

In addition, if the difference between the first service state measurement value and the second service state measurement value of the first cell is between the second preset value and the third preset value, the terminal may directly determine the trigger time of the first cell as the second sub-value.

It should be noted that the first cell may be any cell in the first candidate cell. In a specific implementation, for any cell of the first candidate cells, the corresponding second sub-value may be generated in the above manner.

Then, the terminal may determine whether to send the measurement report to the second network-side device according to the generated first sub-value. Optionally, the determining, according to the second target value, whether to send the measurement report to the second network-side device includes:

comparing the second sub-value of the first cell with a trigger time threshold to obtain a second comparison result;

and determining whether to send a measurement report to the second network side equipment or not according to the second comparison result.

It should be noted that, for different cells in the first candidate cell, the trigger time threshold for the second sub-value comparison may be the same or different.

In a specific implementation, if the second comparison result is that the second sub-value of the first cell is greater than the trigger time threshold, the terminal may further determine whether the second physical parameter measurement value of the first cell reaches the physical parameter measurement threshold, and may send a measurement report to the second network side device when the second physical parameter measurement value of the first cell reaches the physical parameter measurement threshold.

If the second comparison result is that the second sub-value of the first cell is smaller than the trigger time threshold, the terminal may compare the second sub-value of the other cell except the first cell in the first candidate cell with the trigger time threshold, and determine whether to send the measurement report to the second network side device according to the comparison result.

It should be understood that, if the second sub-values of all the cells in the first candidate cell are less than the trigger time threshold, the terminal may abandon sending the measurement report to the second network-side device.

It can be seen that, in an application scenario where the first target value only includes the trigger time, the terminal may generate the second sub-value according to a first comparison result between the first service measurement value of the first cell and the second service state measurement value of the serving cell of the terminal, in combination with the trigger time of the first cell. Then, the second sub-value of the first cell may be compared with a trigger time threshold, and according to a comparison result, it may be determined whether to send a measurement report to the second network side device. Therefore, compared with the prior art that the terminal determines whether to send the measurement report to the second network side device directly based on the comparison result between the triggering time of the cell and the triggering time threshold, the terminal of the invention can intervene in the reporting flow of the measurement event based on the service state of the cell, thereby improving the reliability of the selected cell and further improving the cell selection effect.

In a third expression, the first target value includes the second physical parameter measurement value and a trigger time.

In this application scenario, first, the terminal may generate a first sub-value in combination with a second physical parameter measurement value of the first cell according to a first comparison result between a first service measurement value of the first cell and a second service state measurement value of a serving cell of the terminal, and generate a second sub-value in combination with a trigger time of the first cell.

And then, comparing the second sub-value of the first cell with a trigger time threshold, and further comparing the first sub-value of the first cell with a physical parameter measurement threshold under the condition that the second sub-value of the first cell is greater than or equal to the trigger time threshold. And if the first sub-value of the first cell is greater than or equal to the physical parameter measurement threshold, determining to send a measurement report to the second network side device.

Therefore, compared with the prior art that the terminal determines whether to send the measurement report to the second network side device directly based on the comparison result between the triggering time and the triggering time threshold value of the cell and the comparison result between the physical parameter measurement value of the cell and the physical parameter measurement threshold value, the terminal provided by the invention can intervene in the measurement event reporting process based on the service state of the cell, so that the reliability of the selected cell can be improved, and the cell selection effect can be further improved.

In addition, in scenario two, after the terminal performs measurement, if the measured value of the physical parameter of the first candidate cell is obtained through measurement, it indicates that the terminal is most likely to have moved out of the center position of the serving cell and come to the edge position of the serving cell, and the signal coverage strength of the first candidate cell at the position of the terminal is most likely to be stronger than that of the serving cell at the position of the terminal. At this time, the terminal may perform cell handover to access a candidate cell in the first candidate cell to improve communication quality.

In order to improve the probability of cell handover, optionally, before receiving the first service state measurement value of the first candidate cell sent by the first network side device, the method further includes:

and sending a first message to the first network side device, wherein the first message comprises the identification information of the first candidate cell and the identification information of the service cell of the terminal.

In a specific implementation, the identification information of the cell may include at least one of the following: a cell identity; a PLMN (Public Land Mobile Network) identity; TAC (Tracking Area Code).

In this way, the first network side device may appropriately adjust the traffic state measurement value of the first candidate cell and/or the traffic state measurement value of the serving cell of the terminal according to the received first message, and send the adjusted traffic state measurement value of the first candidate cell and/or the traffic state measurement value of the serving cell of the terminal to the terminal, so that the terminal may perform a target operation of cell selection based on the adjusted traffic state measurement value of the first candidate cell and/or the traffic state measurement value of the serving cell of the terminal, thereby improving the probability of cell handover, and further improving the effect of cell selection.

It should be noted that, various optional implementations described in the embodiments of the present invention may be implemented in combination with each other or implemented separately, and the embodiments of the present invention are not limited thereto.

Referring to fig. 3, fig. 3 is a second flowchart of a cell selection method according to an embodiment of the present invention. The cell selection method of this embodiment may be applied to the first network side device in the method embodiment corresponding to fig. 2.

As shown in fig. 3, the cell selection method of this embodiment may include the following steps:

step 301, receiving a second message sent by a terminal side, where the second message includes identification information of a first candidate cell and service information of a target service of the first candidate cell in a target time period.

The service information may be determined according to the type of the target service. For example, if the target service is a game service, the service information may include delay information, such as instruction response delay information; if the target service is an internet service, the service information may include throughput information; if the target service is a voice service, the service information may include mos (mean Opinion score) information and/or Call Drop (Call Drop) rate information; if the target service is a UI (User Interface) display optimization service, the service Information may include System Information Block Type2 (System Information Block Type 2) Information, such as judgment Information of whether Upper Layer Indication-r15 (Upper Layer Indication-r 15) of the System Information Block Type2 is tube, and if the Upper Layer Indication-r15 of the System Information Block Type2 is tube, the UI display optimization service may be represented as displaying a 5G icon, that is, displaying a 5G icon.

In specific implementation, when the terminal in a connection state at the terminal side starts to operate the target service, the service information of the target service at the current time can be recorded every preset time.

After the target service is finished running, the terminal may process the recorded service information to obtain average service information of the target service in the running period, i.e., the target time period.

Then, the terminal may upload the identification information of the serving cell of the terminal and the average service information to the first network side device after meeting the preset condition.

Wherein, the preset condition may include, but is not limited to, at least one of the following: the terminal is connected to a WIFI (Wireless Fidelity) access point; the terminal is connected with a USB (Universal Serial Bus) interface; the terminal does not run an application.

Step 302, generating service state information according to the second message, wherein the service state information includes a first service state measurement value of the first candidate cell.

Since multiple cells may access the same cell simultaneously, the first network side device may receive second messages from different terminals, but carrying the same cell identifier. In this scenario, for the service information of the target service in the same cell, the terminal may determine the service state measurement value of the target service in the cell based on the average value of the service information reported by each terminal.

In addition, the active time periods for different traffic are considered to be different. Further, the terminal may determine the service state measurement value of the target service of the cell according to the average value of the service information corresponding to the time period, that is, the service state measurement values of the target service of the cell in different time periods may be obtained for the same cell, so that the cell selection may be closer to the actual needs of the user, and the cell selection effect may be improved.

Step 303, sending the first service state measurement value of the first candidate cell to a target terminal.

It should be noted that the target terminal in this step may be understood as a terminal in the method embodiment corresponding to fig. 2.

In this way, after receiving the first service state measurement value of the first candidate cell, the terminal may execute the flow of the method embodiment corresponding to fig. 2, and in specific implementation, the terminal may execute a target operation of cell selection according to a service requirement and a service state measurement value of a service in a target time period, thereby improving a cell selection effect.

Optionally, after generating the service state information according to the second message and before sending the first service state measurement value of the first candidate cell to the target terminal, the method further includes:

receiving a first message sent by the target terminal, wherein the first message comprises identification information of the first candidate cell and identification information of a serving cell of the target terminal;

according to the first message, adjusting a first service state measurement value of the first candidate cell and/or a second service state measurement value of a serving cell of the target terminal;

the sending the first traffic state measurement value of the first candidate cell to the target terminal includes:

Since the first message includes the identification information of the first candidate cell and the identification information of the serving cell of the target terminal, it indicates that the terminal is most likely to have moved out of the center position of the serving cell and come to the edge position of the serving cell, and the signal coverage strength of the first candidate cell at the position of the terminal is most likely to be stronger than the signal coverage strength of the serving cell at the position of the terminal. At this time, the terminal may perform cell handover to access a candidate cell in the first candidate cell to improve communication quality.

Therefore, the first network side device may adjust the first traffic state measurement value of the first candidate cell and/or the second traffic state measurement value of the serving cell of the target terminal according to the first message. In specific implementation, a fifth preset value can be added to the original first service state measurement value to obtain an adjusted first service state measurement value; and/or, a sixth preset value may be subtracted from the original second service state measurement value to obtain an adjusted second service state measurement value. Therefore, the probability of cell switching can be improved, and the effect of cell selection is further improved.

It should be noted that, the present embodiment is implemented as a network side device corresponding to the foregoing method embodiment, and therefore, reference may be made to the relevant description in the foregoing method embodiment, and the same beneficial effects may be achieved. To avoid repetition of the description, the description is omitted.

It should be noted that, in practical applications, the method embodiment corresponding to fig. 2 and the method embodiment corresponding to fig. 3 may be implemented independently or in combination.

As can be seen from the foregoing, the cell selection method according to the embodiment of the present invention is mainly improved in that: for the first network side device, it may generate the service state information in advance, and send the service state information to the terminal. For the terminal, it can perform cell selection according to the traffic state information.

For convenience of understanding, the cell selection method according to the embodiment of the present invention is illustrated below according to a game delay experience. Can be divided into two parts: generating service state information and interfering the service state information to cell selection.

A first part: and generating service state information.

As shown in fig. 4, the following steps may be included:

step 401, the process starts, and the terminal starts the big data information collection system.

Wherein, the process can be understood as the target service. The terminal may pre-pick the target game to embed the data collection system. When the terminal starts to play the target game, the big data information collecting system is started.

And step 402, the terminal records the key information every S seconds.

In a specific implementation, the delay information of the current game may be recorded every 1 second (not limited to 1 second), and the corresponding cell identification information and time period may be recorded.

And step 403, ending the process, settling the statistical information by the terminal, and recording the statistical time period.

And when the game is finished, stopping counting and settling the counting information. For example, if the game running time is 19:00 to 20:00, the terminal may calculate an average value (statistical information of settlement) of delay information detected during the time period (statistical time period).

And step 404, when the preset condition is reached, the terminal uploads the statistical information, the statistical time period and the identification information of the cell to a cloud server.

During specific implementation, if the terminal is connected with WIFI (wireless fidelity), connected with USB (universal serial bus) or idle, statistical information, statistical time periods and identification information of a cell can be uploaded.

Step 405, the server calculates the score of each cell in each time period based on the statistical information, the statistical time period and the identification information of the cell.

Wherein the score can be understood as the above traffic status measure.

In a specific implementation, the server may score each base station according to a time period (the network adaptability state is time-efficient, so that it needs to be distinguished according to the time period to improve the scoring effectiveness) based on the average delay of the currently collected big data.

It should be noted that, the above only describes the game service by way of example, but the present invention is not limited to the cell network selection optimization of game delay, and may also be extended to the application scenarios of surfing the internet, accelerating specific applications, or other applications that are not limited to delay and throughput, that is, the collection of key information, which may be relatively flexible.

A second part: intervention of the traffic status information on cell selection.

The following description is directed to three application scenarios, namely cell selection, cell reselection and cell handover.

And selecting a cell according to an application scene I.

As shown in fig. 5a, the following steps may be included:

step 501, the terminal is in an idle state.

Step 502, the terminal measures candidate cells, and N cells meet the S criteria.

Wherein N is an integer greater than 1. The candidate cell in this step corresponds to the second candidate cell in the above-described method embodiment.

Step 503, the terminal sorts the cells loaded with the S criteria according to the measured energy.

It should be understood that the flow of

steps

502 and 503 still conforms to the original flow of cell reselection in 3 GPP.

And step 504, the terminal traverses from the cell with the highest energy to the cell with the lower energy rank according to the ranking result, and selects the cell with the energy value higher than the pre-ranking Top M of the Min Power with the highest energy.

Wherein M is an integer less than or equal to N. The cell of Top M in this step may be understood as the first candidate cell in the above-described method embodiment.

And 505, the terminal sorts the Top M cells according to the big data scoring information to obtain a new candidate cell list.

Step 506, the terminal initiates selection based on the new candidate cell list.

And applying a second scene and reselecting the cell.

As shown in fig. 5b, the following steps may be included:

step 511, the terminal is in an idle state.

Step 512, the terminal measures the candidate cells, and N cells meet the R criteria.

And 513, the terminal performs cell sorting according to the cell reselection R criterion.

It should be understood that the flow of

steps

512 and 513 still conforms to the original flow of cell reselection in 3 GPP.

And 514, traversing from the cell with the highest energy to the cell with the lower energy ranking by the terminal according to the ranking result, and selecting the cell with the energy value higher than the energy value of the Min Power before ranking Top M.

Step 515, the terminal sorts the Top M cells according to the big data scoring information to obtain a new candidate cell list; and/or adjusting a trigger time for each of the Top M cells.

For example, amplifying the T-Reselection (i.e., trigger time) of the poor scoring cell in the Top M cell, for example, multiplying the T-Reselection by 1.5, or multiplying the T-Reselection by 1 second; the T-Reselection of the better scoring cell in the Top M cell is narrowed, such as multiplying the T-Reselection by 0.5, or multiplying the T-Reselection for-1 second.

In step 516, the terminal initiates reselection based on the new candidate cell list and/or the adjusted trigger time.

According to the 3GPP protocol, the candidate cell list obtained in step 515 is used as the final candidate cell list, and the subsequent procedure of cell reselection is executed.

And an application scene three, cell switching.

As shown in fig. 5c, the following steps may be included:

and step 521, the terminal is in a connected state.

The actual handover initiation of the cell handover procedure is derived from a network decision, which is based on a measurement event decision reported by the terminal to indicate the terminal to perform cell handover.

In step 522, the terminal performs signal measurement on the designated cell.

Wherein, the specified cell may be understood as the first candidate cell in the embodiment.

In specific implementation, the terminal may measure the specified neighboring cell according to an RRC connection reconfiguration message issued by the network.

Additionally, the terminal can also issue information of the current serving cell and the target neighbor cell to be detected to the server cloud, and the server cloud can give scoring information based on the received information of the neighbor cell and the serving cell.

Step 523, if the score of the target neighboring cell configured in the event a3/5 in the RRC connection reconfiguration information is higher than that of the serving cell and the difference value thereof reaches the Threshold Max setter, then when the Threshold condition of the measurement event is determined, the RSRP of the target neighboring cell is added to the offset setter Threshold; and/or subtracting a time preset value from the TTT of the target neighbor cell.

Step 524, if the score of the target neighboring cell of the a3/5 time event is worse than that of the serving cell in the RRC connection reconfiguration information and the difference reaches a Threshold Min setter, subtracting an offset setter Threshold from the RSRP of the target neighboring cell when judging the Threshold condition of the measurement event; and/or adding a time preset value to the TTT of the target neighbor cell.

The time preset value can be 0.5 times of TTT, or 1 second, etc.

Additionally, when the score difference between the target neighboring cell and the serving cell is between the Max Better and the Min Better, the terminal may not interfere with the event reporting process, and the measurement input parameters of the event threshold condition are measured, which still follows the original 3GPP event threshold calculation process.

And step 525, using the biased measurement parameters and/or the adjusted trigger time to judge the threshold of the measurement event.

It should be understood that when the score difference between the target neighbor and the serving cell is between Max Better and Min Better, then the offset value may be considered to be "0".

The embodiment of the invention has the following beneficial effects:

the embodiment of the invention can realize cell selection by evaluating physical parameters such as RSRP/RSRQ and the like in the original flow, and introduces the evaluation of cell service performance to intervene in the original flow of cell selection, so that the cell selection can be closer to the actual requirement of a user, and the user experience is greatly improved.

Referring to fig. 6, fig. 6 is a diagram illustrating a structure of a terminal according to an embodiment of the present invention. As shown in fig. 6, the terminal 600 includes:

a first receiving module 601, configured to receive a first service state measurement value of a first candidate cell sent by a first network side device;

an executing module 602, configured to execute a target operation of cell selection according to the first service state measurement value;

On the basis of fig. 6, the following describes modules further included in the terminal 600, sub-modules included in each module, and/or units included in the sub-modules.

Optionally, in the process of cell selection or cell reselection, the terminal 600 further includes:

Optionally, the selecting module includes:

Optionally, the second selection sub-module includes:

Optionally, the executing module 602 is specifically configured to:

Optionally, in the cell reselection process, the terminal 600 further includes:

the execution module 602 is specifically configured to:

Optionally, the executing module 602 includes:

Optionally, in the process of cell handover, the terminal 600 further includes:

the executing module 602 includes:

Optionally, the executing module 602 includes:

Optionally, the terminal 600 further includes:

The terminal 600 can implement each process in the method embodiment of the present invention and achieve the same beneficial effects, and is not described herein again to avoid repetition.

Referring to fig. 7, fig. 7 is a diagram illustrating one of the structures of a network device according to an embodiment of the present invention. As shown in fig. 7, the network-side device 700 includes:

a second receiving module 701, configured to receive a second message sent by a terminal side, where the second message includes identification information of a first candidate cell and service information of a target service of the first candidate cell in a target time period;

a generating module 702, configured to generate service state information according to the second message, where the service state information includes a first service state measurement value of the first candidate cell;

a second sending module 703 is configured to send the first service state measurement value of the first candidate cell to the target terminal.

On the basis of fig. 7, the following describes modules included in the network-side device 700.

the network side device 700 further includes:

the second sending module 703 is specifically configured to:

The network side device 700 can implement each process in the method embodiment of the present invention and achieve the same beneficial effects, and is not described here again to avoid repetition.

Referring to fig. 8, fig. 8 is a second structural diagram of a terminal according to a second embodiment of the present invention, where the terminal may be a hardware structural diagram of a terminal for implementing various embodiments of the present invention. As shown in fig. 8, terminal 800 includes, but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, a processor 810, and a power supply 811. Those skilled in the art will appreciate that the terminal configuration shown in fig. 8 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The radio frequency unit 801 is configured to:

a processor 810 configured to:

Optionally, in the process of cell selection or cell reselection, the processor 810 is further configured to:

Optionally, the processor 810 is further configured to:

Optionally, the radio frequency unit 801 is further configured to:

Optionally, during cell reselection, the processor 810 is further configured to:

the radio frequency unit 801 is further configured to:

Optionally, in the cell handover process, the processor 810 is further configured to:

Optionally, in a case that the first target value includes the second physical parameter measurement value, the processor 810 is further configured to:

Optionally, the processor 810 is further configured to:

Optionally, in a case that the first target value includes the trigger time, the processor 810 is further configured to:

Optionally, the processor 810 is further configured to:

Optionally, the radio frequency unit 801 is further configured to:

It should be noted that, in this embodiment, the terminal 800 may implement each process in the method embodiment of the present invention and achieve the same beneficial effects, and for avoiding repetition, details are not described here.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 801 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 810; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 801 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. Further, the radio frequency unit 801 can also communicate with a network and other devices through a wireless communication system.

The terminal provides wireless broadband internet access to the user through the network module 802, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.

The audio output unit 803 may convert audio data received by the radio frequency unit 801 or the network module 802 or stored in the memory 809 into an audio signal and output as sound. Also, the audio output unit 803 may also provide audio output related to a specific function performed by the terminal 800 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 803 includes a speaker, a buzzer, a receiver, and the like.

The input unit 804 is used for receiving an audio or video signal. The input Unit 804 may include a Graphics Processing Unit (GPU) 8041 and a microphone 8042, and the Graphics processor 8041 processes image data of a still picture or video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 806. The image frames processed by the graphics processor 8041 may be stored in the memory 809 (or other storage medium) or transmitted via the radio frequency unit 801 or the network module 802. The microphone 8042 can receive sound, and can process such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 801 in case of a phone call mode.

The terminal 800 also includes at least one sensor 805, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 8061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 8061 and/or the backlight when the terminal 800 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 805 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 806 is used to display information input by the user or information provided to the user. The Display unit 806 may include a Display panel 8061, and the Display panel 8061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 807 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 807 includes a touch panel 8071 and other input devices 8072. The touch panel 8071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 8071 (e.g., operations by a user on or near the touch panel 8071 using a finger, a stylus, or any other suitable object or accessory). The touch panel 8071 may include two portions of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 810, receives a command from the processor 810, and executes the command. In addition, the touch panel 8071 can be implemented by various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 8071, the user input unit 807 can include other input devices 8072. In particular, other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

Further, the touch panel 8071 can be overlaid on the display panel 8061, and when the touch panel 8071 detects a touch operation on or near the touch panel 8071, the touch operation is transmitted to the processor 810 to determine the type of the touch event, and then the processor 810 provides a corresponding visual output on the display panel 8061 according to the type of the touch event. Although in fig. 8, the touch panel 8071 and the display panel 8061 are two independent components to implement the input and output functions of the terminal, in some embodiments, the touch panel 8071 and the display panel 8061 may be integrated to implement the input and output functions of the terminal, which is not limited herein.

The interface unit 808 is an interface for connecting an external device to the terminal 800. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 808 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the terminal 800 or may be used to transmit data between the terminal 800 and external devices.

The memory 809 may be used to store software programs as well as various data. The memory 809 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 809 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 810 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 809 and calling data stored in the memory 809, thereby integrally monitoring the terminal. Processor 810 may include one or more processing units; preferably, the processor 810 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 810.

The terminal 800 may also include a power supply 811 (e.g., a battery) for powering the various components, and preferably, the power supply 811 may be logically coupled to the processor 810 via a power management system to provide management of charging, discharging, and power consumption via the power management system.

In addition, the terminal 800 includes some functional modules that are not shown, and are not described in detail herein.

Preferably, an embodiment of the present invention further provides a terminal, including a processor 810, a memory 809, and a computer program stored in the memory 809 and capable of running on the processor 810, where the computer program, when executed by the processor 810, implements each process of the above cell selection method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.

Referring to fig. 9, fig. 9 is a second structural diagram of a network-side device according to an embodiment of the present invention, and as shown in fig. 9, the network-side device 900 includes: a processor 901, a memory 902, a user interface 903, a transceiver 904, and a bus interface.

In this embodiment of the present invention, the network side device 900 further includes: a computer program stored on the memory 902 and executable on the processor 901, the computer program realizing the following steps when executed by the processor 901:

the computer program, when executed by the processor 901, may further implement the steps of:

In fig. 9, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 901, and various circuits, represented by memory 902, linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 904 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The user interface 903 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 901 is responsible for managing the bus architecture and general processing, and the memory 902 may store data used by the processor 2601 in performing operations.

The network side device 900 can implement each process implemented by the network side device in the above method embodiments, and is not described here again to avoid repetition.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the cell selection method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A cell selection method applied to a terminal is characterized by comprising the following steps:

the first candidate cell is determined according to a physical parameter measurement value of the cell, or is specified by second network side equipment; the first traffic state measurement value is used for characterizing the traffic state of the first candidate cell;

before performing a target operation of cell selection according to the first traffic state measurement value in a cell handover process, the method further includes:

2. The method according to claim 1, wherein before the receiving the first traffic state measurement value of the first candidate cell sent by the first network-side device in the cell selection or cell reselection process, the method further comprises:

3. The method of claim 2, wherein selecting the first candidate cell from the second candidate cells according to the first physical parameter measurement value comprises:

4. The method of claim 3, wherein the selecting the first candidate cell from the N cells according to the measured energy values of the N cells comprises:

5. The method according to any of claims 1 to 4, wherein the performing a target operation of cell selection according to the first traffic state measurement value during cell selection or cell reselection comprises:

6. The method of claim 5, wherein before the sending the connection request message to the first target cell of the first candidate cells during cell reselection, the method further comprises:

7. The method according to any of claims 1 to 4, wherein the performing a target operation of cell selection according to the first traffic state measurement value during cell reselection comprises:

8. The method of claim 1, wherein in the case that the first target value comprises the second physical parameter measurement value, the generating a second target value according to the first traffic state measurement value, the second traffic state measurement value and the second physical parameter measurement value comprises:

9. The method according to claim 8, wherein the determining whether to send a measurement report to the second network-side device according to the second target value comprises:

10. The method of claim 1, wherein, in the case that the first target value comprises the trigger time, the generating a second target value according to the first traffic state measurement value, the second traffic state measurement value, and the first target value comprises:

11. The method according to claim 10, wherein the determining whether to send a measurement report to the second network-side device according to the second target value comprises:

12. The method of claim 1, wherein before receiving the first traffic state measurement value of the first candidate cell sent by the first network side device, the method further comprises:

13. A cell selection method is applied to a network side device, and is characterized in that the method comprises the following steps:

sending a first service state measurement value of the first candidate cell to a target terminal;

the second message also comprises a second service state measurement value of the serving cell of the target terminal;

after generating the service state information according to the second message and before sending the first service state measurement value of the first candidate cell to the target terminal, the method further includes:

14. A terminal, comprising:

in the process of cell switching, the terminal further includes:

the execution module includes:

15. A network-side device, comprising:

a second sending module, configured to send the first service state measurement value of the first candidate cell to a target terminal;

the network side device further includes:

the second sending module is specifically configured to:

16. A terminal comprising a processor, a memory and a computer program stored on the memory and operable on the processor, the computer program, when executed by the processor, performing the steps of the cell selection method of any one of claims 1 to 12.

17. A network side device comprising a processor, a memory and a computer program stored on the memory and operable on the processor, wherein the computer program, when executed by the processor, implements the steps of the cell selection method according to claim 13.

18. A computer-readable storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the cell selection method according to one of the claims 1 to 12 or the steps of the cell selection method according to claim 13.