CN113747545B - Terminal equipment and method for intelligent network selection - Google Patents

Abstract

The embodiment of the application provides a terminal device and an intelligent network selection method, which comprise the following steps: the device comprises an evaluation and ordering module, a quality evaluation module and a quality evaluation module, wherein the evaluation and ordering module is used for determining first information of at least one cell to be accessed, the first information comprises a score of each cell to be accessed in the at least one cell to be accessed, the signal quality of each cell to be accessed meets a first condition, and the first condition is that the level value of the at least one cell to be accessed is greater than a first threshold value and the quality value of the at least one cell to be accessed is greater than a second threshold value; and the control center is used for determining a target cell of the terminal equipment from the at least one cell to be accessed according to the first information. According to the scheme, the terminal equipment can be ensured to be rapidly accessed into the network and can preferentially reside in the high-quality cell, so that the user experience can be improved.

Description

Terminal equipment and method for intelligent network selection

technical field

The present application relates to the communication field, in particular to a terminal device and an intelligent network selection method.

Background technique

With the fifth generation (fifth generation, 5G) mobile communication system gradually entering the commercial stage, 5G cells have a better user experience than 4G cells, because the user terminal equipment (customer premise equipment) is selected based on the order of network search and signal strength. , CPE) is a network-based cell, so the current network search mechanism will probabilistically fail to attach to the 5G network.

Unlike mobile phones, 5G CPEs have a relatively fixed location. Generally, after staying in a certain cell, there is a high probability that they will not change the cell. Therefore, the performance of the first cell where it resides is very important, and there are currently some problems. These problems lead to slow, unstable, and poor experience of 5G non-standalone (NSA) CPE products. Therefore, a solution is needed to solve such problems and provide users with the best network services in a certain area.

In view of the above problems, one solution is to search one by one according to the frequency bands supported by the terminal equipment defined by the current third generation partnership agreement (3rd generation partnership project, 3GPP), when the signal strength of which frequency band is higher than the minimum receiving level of the terminal equipment, Just record it. And try to camp on the network in this frequency band, this way allows CPE to quickly camp on the network. However, this solution only considers that the signal strength of the searched frequency point satisfies a certain threshold. Therefore, even if the cell meets the network camping conditions, the CPE access to the cell will result in a low rate and poor user experience.

In view of the above problems, another solution is to have a variety of network search optimization schemes such as bad cells, ping-pong handover suppression, and ping-pong reselection suppression. However, these solutions all have certain entry conditions for judgment. If the entry condition is determined, it may fall into such an abnormal scene for a long time. This solution is only optimized on the basis of the original technology to avoid the problem of ping-pong handover when accessing an unavailable cell (faulty cell) or terminal equipment in a neighboring cell. Incoming-NEDC (evolved UMTS terrestrial radio access-new radio dual connectivity, ENDC) cell problem.

Therefore, how to ensure that the CPE can quickly access the network and at the same time preferentially camp in a high-quality cell is a problem that needs to be solved.

Contents of the invention

The embodiment of the present application provides a terminal device and an intelligent network selection method, which can ensure that the CPE can quickly access the network and at the same time preferentially camp in high-quality cells, thereby improving user experience.

In a first aspect, a terminal device is provided, including: an evaluation and sorting module, configured to determine first information of at least one cell to be accessed, the first information including each of the at least one cell to be accessed The score of the incoming cell, the signal quality of each cell to be accessed satisfies the first condition, the first condition is that the level value of the at least one cell to be accessed is greater than the first threshold and the at least one cell to be accessed The quality value of the incoming cell is greater than the second threshold; the control center is configured to determine the target cell of the terminal device from the at least one cell to be accessed according to the first information.

In the solution provided by the embodiment of this application, since the evaluation and sorting module included in the terminal device can determine the first information of at least one cell to be accessed, the control center can determine the target cell of the terminal device according to the score included in the first information, Compared with the prior art scheme that only considers whether the signal strength of a frequency point meets a certain threshold, the scheme of this application can preferentially search and reside in a high-quality and high-performance cell based on an intelligent network search strategy, ensuring that terminal equipment quickly accesses the network At the same time, it can also give priority to camping in high-quality cells, which can try to avoid the one-sidedness of preferentially camping in cells based on signal quality when accessing the network for the first time and preferentially accessing historical cells when entering the network, thereby improving user experience.

With reference to the first aspect, in some possible implementation manners, the score is determined based on at least one of the following parameters:

The residence situation of the new air interface NR anchor point of the at least one cell to be accessed, the bandwidth of the at least one cell to be accessed, the congestion degree of the at least one cell to be accessed, the at least one cell to be accessed CA activation status of the carrier aggregation and the multiple-input multiple-output MIMO activation level of the at least one cell to be accessed.

In the solution provided by the embodiment of this application, the evaluation and sorting module included in the terminal device can determine the score of at least one cell to be accessed based on at least one parameter among multiple parameters, which can improve the accuracy of the terminal device camping on a high-quality high-performance cell. performance, which can further improve user experience.

With reference to the first aspect, in some possible implementation manners, if the terminal device accesses the network for the first time, the at least one cell to be accessed is a cell in a first frequency band, and the first frequency band is a cell in the first frequency band for the terminal device Supported frequency bands; or, if the terminal device is not accessing the network for the first time, the at least one cell to be accessed is the current cell where the terminal device resides and a neighboring cell of the current cell.

The solution provided by the embodiment of the present application can determine the difference of at least one cell to be accessed according to whether the terminal device accesses the network for the first time, which can ensure that the terminal device quickly accesses the network, thereby improving the efficiency of the terminal device in the network, and further can improve user experience.

With reference to the first aspect, in some possible implementation manners, the first information further includes an ID of each cell to be accessed and/or a frequency band corresponding to each cell to be accessed.

In the solution provided by the embodiment of this application, the first information may also include the ID of each cell to be accessed and/or the frequency band corresponding to each cell to be accessed, which is conducive to the accuracy of the terminal device camping on the target cell, and further can improve user experience.

With reference to the first aspect, in some possible implementation manners, the evaluation and sorting module is further configured to sort the score of each cell to be accessed according to the first information; the control center further It is configured to: according to the sorting, determine the cell with the highest score as the target cell of the terminal device.

In the solution provided by the embodiment of the present application, the control center can determine the cell with the highest ranking as the target cell of the terminal device, which can further ensure that the terminal device preferentially camps in a high-quality cell, thereby improving user experience.

With reference to the first aspect, in some possible implementation manners, the terminal device further includes: a network camping module, configured to: if the target cell satisfies a registration condition, the terminal device camps in the target cell; Or, if the target cell does not meet the registration condition, feed back to the control center that the target cell does not meet the registration condition; Determine the target cell as the terminal device.

With reference to the first aspect, in some possible implementation manners, if the terminal device camps in the target cell, the control center is further configured to: drive the evaluation and sorting module to determine the Second information about the target cell and adjacent cells of the target cell, where the second information includes scores of the target cell and adjacent cells of the target cell; according to the second information, re-determine the terminal The device's target cell.

In the solution provided by the embodiment of the present application, after the terminal device camps in the target cell, the control center can also drive the evaluation and sorting module to determine the second information of the target cell where it currently resides and its adjacent cells every first time interval, Therefore, the target cell can be adjusted based on the obtained second information, and the performance of the cell where the terminal device resides can be further ensured, thereby improving user experience.

With reference to the first aspect, in some possible implementation manners, the score of the target cell included in the second information is obtained by weighting based on the current score and historical score of the target cell; the second information includes The score of the neighbor cell of the target cell is obtained by weighting based on the current score and the history score of the neighbor cell.

In the solution provided by the embodiment of the present application, the score included in the second information is obtained by weighting based on the current score of the cell and the historical score of the cell, which can further ensure the performance of the cell where the terminal device resides, thereby improving user experience.

With reference to the first aspect, in some possible implementation manners, the control center is further configured to: trigger the terminal device to perform the intelligent network selection.

With reference to the first aspect, in some possible implementation manners, the control center is further used to:

Triggering the terminal device to perform the intelligent network selection based on a preset period; and/or,

When the terminal device is in an idle state, triggering the terminal device to perform the intelligent network selection; and/or,

When the user manually operates, triggering the terminal device to perform the intelligent network selection; and/or,

When the terminal device is turned on for the first time or after being reset, the terminal device is triggered to perform the intelligent network selection.

With reference to the first aspect, in some possible implementation manners, the control center is further configured to: trigger the terminal device to perform the intelligent network selection based on an AT command.

With reference to the first aspect, in some possible implementation manners, the terminal device further includes: a parameter collection module: configured to obtain information about each cell to be accessed and a neighboring cell of each cell to be accessed The third information, the third information includes at least one of the following parameters: the residence situation of the NR anchor point of each cell to be accessed, the bandwidth of each cell to be accessed, the The congestion degree of the cell to be accessed, the CA activation status of each cell to be accessed and the MIMO activation level of each cell to be accessed; the evaluation and sorting module is further configured to: according to the third information , determining the first information of each cell to be accessed.

In a second aspect, a method for intelligent network selection is provided, including: determining first information of at least one cell to be accessed, the first information including a score of each cell to be accessed in the at least one cell to be accessed , the signal quality of each cell to be accessed satisfies a first condition, the first condition being that the level value of the at least one cell to be accessed is greater than a first threshold and the quality of the at least one cell to be accessed The value is greater than the second threshold; according to the first information, determine the target cell of the terminal device from the at least one cell to be accessed.

With reference to the second aspect, in some possible implementation manners, the score is determined based on at least one of the following parameters: the residence situation of the NR anchor point of the new air interface of the at least one cell to be accessed, The bandwidth of the at least one cell to be accessed, the congestion degree of the at least one cell to be accessed, the carrier aggregation CA activation status of the at least one cell to be accessed, and the multiple-input multiple Output MIMO enable level.

With reference to the second aspect, in some possible implementation manners, if the terminal device accesses the network for the first time, the at least one cell to be accessed is a cell in a first frequency band, and the first frequency band is a cell in the first frequency band for the terminal device Supported frequency bands; or, if the terminal device is not accessing the network for the first time, the at least one cell to be accessed is the current cell where the terminal device resides and a neighboring cell of the current cell.

With reference to the second aspect, in some possible implementation manners, the first information further includes an ID of each cell to be accessed and/or a frequency band corresponding to each cell to be accessed.

With reference to the second aspect, in some possible implementation manners, the determining the target cell of the terminal device from the at least one cell to be accessed according to the first information includes: according to the first information , sorting the scores of each cell to be accessed; according to the sorting, determining the cell with the highest score as the target cell of the terminal device.

With reference to the second aspect, in some possible implementations, the method further includes: if the target cell satisfies the registration condition, camping on the network of the terminal device to the target cell; or, if the target cell does not Satisfying the registration condition, feeding back to the control center that the target cell does not meet the registration condition; according to the sorting, determining the cell with the second highest score as the target cell of the terminal device.

With reference to the second aspect, in some possible implementation manners, if the terminal device camps in the target cell, the method further includes: driving the evaluation and sorting module to determine the target cell every first time length and the second information of the adjacent cells of the target cell, the second information includes the scores of the target cell and the adjacent cells of the target cell; according to the second information, re-determine the target area.

With reference to the second aspect, in some possible implementation manners, the score of the target cell included in the second information is obtained by weighting based on the current score and historical score of the target cell; the second information includes The score of the neighbor cell of the target cell is obtained by weighting based on the current score and the history score of the neighbor cell.

With reference to the second aspect, in some possible implementation manners, the method further includes: triggering the terminal device to perform the intelligent network selection.

With reference to the second aspect, in some possible implementation manners, the triggering the terminal device to perform the intelligent network selection includes:

Triggering the terminal device to perform the intelligent network selection based on a preset period; and/or,

When the terminal device is in an idle state, triggering the terminal device to perform the intelligent network selection; and/or,

When the user manually operates, triggering the terminal device to perform the intelligent network selection; and/or,

When the terminal device is turned on for the first time or after being reset, the terminal device is triggered to perform the intelligent network selection.

With reference to the second aspect, in some possible implementation manners, the triggering the terminal device to perform the intelligent network selection includes: triggering the terminal device to perform the intelligent network selection based on an AT command.

With reference to the second aspect, in some possible implementation manners, the method further includes: acquiring third information about each cell to be accessed and a neighboring cell of each cell to be accessed, the first The third information includes at least one of the following parameters: the residence situation of the NR anchor point of each cell to be accessed, the bandwidth of each cell to be accessed, and the congestion degree of each cell to be accessed . The CA activation status of each cell to be accessed and the MIMO activation level of each cell to be accessed; according to the third information, determine the first information of each cell to be accessed.

For the beneficial effects of the second aspect, reference may be made to the beneficial effects of the first aspect, which will not be repeated here.

In a third aspect, a communication device is provided, and the communication device may be the terminal device in the foregoing method embodiment, or a chip provided in the terminal device. Includes transceiver and processor. Optionally, the communication device further includes a memory. The processor is used to control the transceiver to send and receive signals, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the communication device executes any one of the possible implementation manners of the second aspect above Methods.

In a fourth aspect, the present application provides a system-on-a-chip, where the system-on-a-chip includes a processor, configured to implement functions of the terminal device in the methods of the above aspects. In a possible design, the chip system further includes a memory, configured to store program instructions and/or data. The system-on-a-chip may consist of chips, or may include chips and other discrete devices.

In a fifth aspect, a computer-readable storage medium is provided, where a computer program is stored in the computer-readable storage medium, and when the computer program is run, the method performed by the terminal device in the foregoing aspects is implemented.

According to a sixth aspect, a computer program product is provided, and the computer program product includes: computer program code. When the computer program code is executed, the method performed by the terminal device in the above aspects is executed.

Description of drawings

FIG. 1 is a schematic diagram of a wireless communication system provided by an embodiment of the present application.

FIG. 2 is a schematic diagram of a CPE resident network provided by an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a terminal device provided by another embodiment of the present application.

Fig. 5 is a schematic structural diagram of a terminal device provided by another embodiment of the present application.

Fig. 6 is a schematic flowchart of a method for intelligent network selection provided by an embodiment of the present application.

Fig. 7 is a schematic flowchart of a method for intelligent network selection provided by another embodiment of the present application.

Fig. 8 is a schematic block diagram of a communication device provided by an embodiment of the present application.

FIG. 9 is a schematic block diagram of a chip provided by an embodiment of the present application.

Detailed ways

The technical solution in this application will be described below with reference to the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

In order to facilitate the understanding of the solution of the present application, the terms involved in the present application are described below first.

5G NSA network: The existing long term evolution (LTE) wireless access and core network serves as the anchor point for mobility management and coverage, and a new 5G access networking method.

The newly added networking mode can include two scenarios, one scenario is that the master cell group (MCG) shares bearer (split bear) (option 3 networking), and the other scenario is that the secondary cell group (secondary cellgroup) , SCG) spilled bear (option 3X networking).

1. Option 3 networking: user plane data first arrives at LTE, and data from the core network first enters the packet data convergence protocol (PDCP) of the evolved base station (evolved node B, eNodeB or eNB), and then the data of the eNB The PDCP performs data offloading, and offloads the data to the radio link control (radio link control, RLC) on the base station (generationnode B, gNodeB or gNB) side through the x2 interface.

2. Option 3X networking: The user plane data first goes to 5G, and the data from the core network enters the PDCP of the gNB, and then the data is distributed by the PDCP, and distributed to the RLC on the eNB side through the x2 interface.

FIG. 1 is a schematic diagram of a wireless communication system 100 provided by an embodiment of the present application. The communication system 100 may include: a mobility management entity (mobility management entity, MME)/serving gateway (serving gateway, S-GW) 110, a base station and a core side gateway (next generation-control plane or user plane gateway, NG-CP/ UPGW) 120 , at least one eNB 130 , at least one gNB 140 and a terminal device 150 .

It should be understood that FIG. 1 is only a schematic diagram, and the communication system may further include other network devices, which are not shown in FIG. 1 . The embodiments of the present application do not limit the number of network devices and terminal devices included in the mobile communication system.

Among them, eNB130, eNB130 and gNB140 can be connected through the X2 interface, and gNB140 can be interconnected through the Xn interface. The multi-pair connection between gNB140 and NG-CP/UPGW120 is realized through the Ng interface, and the connection between gNB140 and terminal device 150 is through the user equipment-Universal Mobile Telecommunications System Terrestrial Access Network (UE-UTRAN, Uu) interface, and gNB140 and MME /S-GW110 are connected through the S1-U interface.

The Uu interface may be an interface between a user equipment (user equipment, UE) and an access network device. Wherein, the access network device may be a base station in a universal mobile telecommunications system terrestrial radio access network (UMTS terrestrial radio accessnetwork, UTRAN), or a base station in a universal mobile telecommunications system (universal mobile telecommunications system, UMTS), or a base station in a 5G network gNB, or a base station in a subsequent evolved network, is not limited.

It should be understood that in this embodiment of the present application, the terminal device or network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (central processing unit, CPU), a memory management unit (memory management unit, MMU), and memory (also called main memory). The operating system may be any one or more computer operating systems that implement business processing through processes, for example, Linux operating system, Unix operating system, Android operating system, iOS operating system, or windows operating system. The application layer includes applications such as browsers, address books, word processing software, and instant messaging software. Moreover, the embodiment of the present application does not specifically limit the specific structure of the execution subject of the method provided by the embodiment of the present application, as long as the program that records the code of the method provided by the embodiment of the present application can be run to provide the method according to the embodiment of the present application. For example, the execution subject of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module in a terminal device or a network device that can call a program and execute the program.

Additionally, various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used in this application covers a computer program accessible from any computer readable device, carrier or media. For example, computer-readable storage media may include, but are not limited to, magnetic storage devices (e.g., hard disks, floppy disks, or tapes, etc.), optical disks (e.g., compact discs (compact disc, CD), digital versatile discs (digital versatile discs, DVD) etc.), smart cards and flash memory devices (eg, erasable programmable read-only memory (EPROM), card, stick or key drive, etc.).

Additionally, various storage media described herein can represent one or more devices and/or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing and/or carrying instructions and/or data.

It should be understood that the division of methods, situations, categories and embodiments in the embodiments of the present application is only for the convenience of description and should not constitute a special limitation. The features in various methods, categories, situations and embodiments are not contradictory cases can be combined.

It should also be understood that "first", "second" and "third" in the embodiments of the present application are only for distinction and shall not constitute any limitation to the present application. For example, "first information" and "second information" in this embodiment of the present application refer to information transmitted between a network device and a terminal device.

It should also be understood that in various embodiments of the present application, the sequence numbers of the processes do not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation.

It should also be noted that in this embodiment of the application, "pre-set", "pre-defined", etc. can be indicated by pre-saving corresponding codes, tables or other instructions in devices (including terminal devices and network devices, for example) related information, the present application does not limit its specific implementation, such as the preset rules and preset constants in the embodiments of the present application.

It should also be noted that "and/or" describes the association relationship of associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone These three situations. The character "/" generally indicates that the contextual objects are an "or" relationship. The technical solutions provided by the present application will be described in detail below in conjunction with the accompanying drawings.

Since 2019, 5G services have been commercialized around the world. However, in the actual experience of users on the live network, many terminal devices still reside on the LTE network most of the time without accessing the 5G network. Analyzing the network status of the terminal device, it is found that even if there are new air interface/new radio (NR) network resources around the terminal device, the signal strength of the NR network resource is not as high as that of the non-anchor LTE cell, so the Some terminals will stay on non-anchor LTE cells, resulting in users not being able to preferentially use 5G cell services, making user experience worse.

Judging from 5G CPE big data statistics and field test feedback, narrowband cells are the main cause of congestion triggering, making 5G CPE experience worse than LTE, accounting for more than 20% of complaints. Among them, typical narrowband frequency bands (band) include telecom band5 and China Unicom band8. For the identified narrowband cells, it can be considered to add them to the blocked cells to prohibit their use, but if there are no better 5G cells or LTE cells around the user, the user will not be able to access the Internet and the user experience will be worse.

As 5G gradually enters the commercial stage, 5G cells have a better user experience than 4G cells. However, since 5G cells select CPE based cells based on the network search order and signal strength, the current network search mechanism may fail probabilistically. Attached to 5G network. For a cell that supports NSA_ENDC or a 4G cell adjacent to 5G, it will randomly access to a 4G cell or a 5GENDC cell.

5G CPE is different from mobile phones, and its location is relatively fixed. Generally, after staying in a certain cell, there is a high probability that it will not change the cell. Therefore, the performance of the first cell where it resides is very important. Currently, there are the following problems:

1. Camp in a narrow bandwidth cell (for example, the bandwidth is below 5M);

2. Residing in a non-anchor cell, 5G cannot be activated;

3. Residing in a non-carrier aggregation (CA) cell, CA cannot be activated;

4. Camp on cells with strong signal but poor quality. Camping in these cells will result in poor CPE service experience.

These problems lead to slow, unstable, and poor experience of 5G NSA CPE products. Therefore, a solution is needed to solve such problems and provide users with the best network services in a certain area.

For the above problem, one solution is to search one by one according to the frequency bands supported by the terminal equipment defined by the current 3GPP, and record when the signal strength of any frequency band is higher than the minimum receiving level of the terminal equipment. And try to camp on the network in this frequency band, this way allows CPE to quickly camp on the network.

As shown in FIG. 2 , it is a schematic diagram of a CPE resident network provided by the embodiment of the present application.

Among them, the solid circle on the left is the NR anchor LTE cell, the dotted circle in the middle is the LTE cell, and the solid circle on the right is the cell that failed to camp.

The signal strength of the current LTE cell is the strongest, and the terminal device searches the network in order of frequency bands. Based on the signal quality and strength matching, the terminal device will directly reside in the middle LTE cell with a high probability, resulting in poor user experience.

The current standard network search theory is to search the network according to the preset frequency band sequence. In the NSA network, it is based on LTE search network, and based on the LTE signal strength meeting the minimum reception level (signal strength) as the basis for selecting access cells, specifically Search the net as follows:

1. The CPE reads the supported frequency bands.

2. In order to find the frequency point as soon as possible, the CPE will first read the frequency point of the history (the frequency point of the cell where it was turned on last time).

3. After reading the historical frequency points, the CPE will make an energy estimate for each historical frequency point and sort them according to the energy intensity.

4. Then try each historical frequency point in turn. If the historical frequency points are not available, the CPE will scan each frequency band one by one.

5. The CPE will scan 50 frequency points for each frequency band, if it cannot be scanned, it will scan the next frequency band.

6. Judging whether the frequency point is available is mainly to judge whether the primary synchronization signal (primary synchronization signal, PSS)/secondary synchronization signal (secondary synchronization signal, SSS) of the cell at the frequency point is synchronous, and obtain the primary information block broadcast by the cell ( master information block (MIB) message and system information block (system information block, SIB) message.

7. The SIB message contains information such as Q _rxlevmin in the S criterion. Only the cell that meets the S criterion can the terminal device try to register; otherwise, scan the next frequency point,

8. The cell selection process is the judgment of the S criterion, for which reference may be made to the 3rd Generation Partnership Project 3GPP technical specification (technology standards, TS) 36.304 5.2 cell selection and reselection.

The S criterion of LTE is defined as: satisfying Srxlev>0 and Squal>0.

Among them, Srxlev= _Qrxlevmeas- ( _Qrxlevmin + _{Qrxlevminoffset} )-P _compensation ;

Squal = Q _qualmeas - (Q _qualmin + Q _{qualminoffset} ).

Refer to Table 1 for the meanings in the above formulas.

Table 1

Wherein, RSRP in the above Table 1 is reference signal receiving power (reference signal receiving power, RSRP), and RSRQ is reference signal receiving quality (reference signal receiving quality, RSRQ).

However, this solution only considers whether the signal strength of the searched frequency point meets a certain threshold (see the above formula for the specific algorithm), and does not consider other factors of the LTE. Cells will also lead to low speed and poor user experience.

In view of the above problems, another solution is the existing bad cell (the cell will be marked when it often fails), ping-pong handover suppression (caused by dynamic changes in signal strength), ping-pong reselection (based on the increase of the reselection threshold based on signal strength) suppression, etc. However, these solutions all have certain judgment entry conditions. Once the judgment entry conditions of these optimization strategies are not met, it may fall into such abnormal scenarios for a long time.

This solution is only optimized on the basis of the original technology to avoid the problem of ping-pong handover when accessing an unavailable cell (faulty cell) or when the UE is in a neighboring cell. It does not solve the problem of staying in ENDC (5G cell under NSA) ) community problems.

Therefore, this application provides a terminal device that can preferentially search and reside in an ENDC cell or a non-narrowband cell or a high-quality high-performance cell combining them based on an intelligent network search strategy under a 5G NSA network. At the same time, it can also preferentially reside in high-quality cells, which can improve user experience.

FIG. 3 is a terminal device 300 provided in an embodiment of the present application. The terminal device 300 may be the above-mentioned CPE, or the terminal device 150 in FIG. 1 , and the terminal device 300 may include an application processor (application processor , AP) 310, which may include a control center 302 and an evaluation and ranking module 301.

An evaluation and sorting module 301, configured to determine first information of at least one cell to be accessed, where the first information includes a score of each cell to be accessed in the at least one cell to be accessed, and each cell to be accessed The signal quality of the incoming cell satisfies a first condition, and the first condition is that the level value of the at least one cell to be accessed is greater than a first threshold and the quality value of the at least one cell to be accessed is greater than a second threshold.

In the embodiment of this application, whether the terminal device accesses the network for the first time can be understood as: if the terminal device newly purchased by the user accesses the network or when the user accesses the network after resetting (because it needs to be configured according to the wizard after resetting, the access The network time may be slightly longer) or when the terminal device moves far away to access the network (for example, from China to a foreign country), it can be understood as the terminal device accessing the network for the first time; if the user has already used the terminal When the device is connected to the network again (the location of the access network is relatively close), it can be understood that the terminal device is not accessing the network for the first time.

It should be understood that whether the terminal device accesses the network for the first time is not limited to the above-mentioned several situations, and may also include other situations, which are not limited.

The signal quality of each cell to be accessed in this embodiment of the present application satisfies the above S criterion, that is, each cell to be accessed in at least one cell to be accessed satisfies Srxlev>0 and Squal>0.

It should be noted that the first threshold and/or the second threshold in the embodiments of the present application may be the same or different, and the first threshold and/or the second threshold may also be other values, which are not limited.

For example, assuming that the first threshold and/or the second threshold in this embodiment of the present application are 0.1, then the level value of each cell to be accessed is greater than 0.1, and the quality value of each cell to be accessed is greater than 0.1.

The control center 302 is configured to determine a target cell of the terminal device from the at least one cell to be accessed according to the first information.

In the solution provided by the embodiment of this application, since the evaluation and sorting module included in the terminal device can determine the first information of at least one cell to be accessed, the control center can determine the target cell of the terminal device according to the score included in the first information, Compared with the prior art scheme that only considers whether the signal strength of a frequency point meets a certain threshold, the scheme of this application can preferentially search and reside in a high-quality and high-performance cell based on an intelligent network search strategy, ensuring that terminal equipment quickly accesses the network At the same time, it can also give priority to camping in high-quality cells, which can try to avoid the one-sidedness of preferentially camping in cells based on signal quality when accessing the network for the first time and preferentially accessing historical cells when entering the network, thereby improving user experience.

As mentioned above, the evaluation and sorting module 301 can determine the score of each of the at least one to-be-accessed cell, wherein, the score of each to-be-accessed cell can be calculated or obtained in combination with the following parameters, please refer to See below.

Optionally, in some embodiments, the score is determined based on at least one of the following parameters: the residence situation of the NR anchor point of the at least one cell to be accessed, the at least one cell to be accessed bandwidth, the congestion degree of the at least one cell to be accessed, the CA activation status of the at least one cell to be accessed, and the multiple input multiple output (multiple input multiple output, MIMO) activation of the at least one cell to be accessed grade.

In the embodiment of this application, the calculation of the score of each cell to be accessed can be calculated based on the following method (the score of the current cell can be defaulted to X):

1) Assuming that the cell to be accessed is an NR anchor cell, if the cell to be accessed has not been successfully registered yet, then increase Y=40 points; if the cell to be accessed successfully resides in 5G, then increase Y=80 points .

2) If the bandwidth of the cell to be accessed is narrowband, N=50 points may be subtracted.

3) The congestion degree of the cell to be accessed can be divided into 0 to 5 levels, 0 means that the cell to be accessed is not congested, and level 5 means that the cell to be accessed is extremely congested, and 20 points can be subtracted for each level.

4) If CA is activated in the cell to be accessed, K=20 points can be added.

5) The MIMO activation level of the cell to be accessed can be divided into 2 types, which can include 2 input and output levels and 4 input and output levels, and each additional channel can increase 10 points.

Then the final score of the cell to be accessed can be calculated based on the following formula (1):

S＝X+Y-N-L*20+K+m*10 (1)

For example, assume that the cell 1 to be accessed is an NR anchor cell, and successfully resides in a 5G cell, the bandwidth of the cell 1 to be accessed is narrowband, and the cell 1 to be accessed is a cell with level 2 congestion. Enter the cell 1 to start CA, the MIMO activation level of the cell 1 to be accessed is 2 input and output levels, the default current score of the cell to be accessed is 100, then the final score of the cell 1 to be accessed can be obtained according to the above formula (1) It is S1=100+80-50-40+20+20=130 points.

It should be understood that the above numerical values are for illustration only, and may also be other numerical values, which should not be particularly limited to the present application.

It should be noted that CA can aggregate multiple continuous or discontinuous carriers into a larger bandwidth (up to 100M at most), and can provide a rate of 1Gbit/s downlink and 500Mbit/s uplink within a bandwidth of 100M , it can be simply understood that the CA can increase the capacity rate of uploading and downloading. Therefore, if the cell to be accessed starts CA, the corresponding score can be increased.

In the solution provided by the embodiment of this application, the evaluation and sorting module included in the terminal device can determine the score of at least one cell to be accessed based on at least one parameter among multiple parameters, which can improve the accuracy of the terminal device camping on a high-quality high-performance cell. performance, which can further improve user experience.

Optionally, in some embodiments, if the terminal device accesses the network for the first time, the at least one cell to be accessed is a cell in a first frequency band, and the first frequency band is a frequency band supported by the terminal device; Or, if the terminal device is not accessing the network for the first time, the at least one cell to be accessed is a current cell where the terminal device resides and a neighboring cell of the current cell.

The first frequency band in the embodiment of the present application may be a frequency band supported by a terminal device. Since the frequency band supported by each terminal device is based on the manufacturer's factory settings, the frequency bands set by different manufacturers may be different. For example, some terminal devices can support dual frequency bands (such as 900MHz and 1800MHz), some terminal devices can support three frequency bands (such as 850MHz, 1800MHz and 1900MHz), and some terminal devices support four frequency bands (such as 850MHz, 900MHz, 1800MHz, and 1900MHz).

If the terminal device accesses the network for the first time, each frequency band in the first frequency band may include multiple cells, and the signal quality of only some of the multiple cells may meet the above S criterion, that is, Srxlev>0 and Squal>0, Then the part of the cells satisfying the S criterion is at least one cell to be accessed in the embodiment of the present application.

If the terminal device is not accessing the network for the first time, the at least one cell to be accessed may be understood as: the current cell where the terminal device resides and its neighboring cells. The adjacent cell in this application may refer to a cell that can be handed over between two cells during a call.

The solution provided by the embodiment of the present application can determine the difference of at least one cell to be accessed according to whether the terminal device accesses the network for the first time, which can ensure that the terminal device quickly accesses the network, thereby improving the efficiency of the terminal device in the network, and further can improve user experience.

Optionally, in some embodiments, the first information further includes an identity (identity, ID) of each cell to be accessed and/or a frequency band corresponding to each cell to be accessed.

In this embodiment of the present application, in addition to the score of each cell to be accessed, the first information may also include an identifier or index of each cell to be accessed, and a frequency band corresponding to each cell to be accessed.

As described above, the control center 302 may determine the target cell of the terminal device from at least one cell to be accessed according to the first information. Assuming that the control center 302 determines that the cell 1 to be accessed is the target cell of the terminal device, the terminal device can be connected to the determined cell 1 through the identification of the cell 1 to be accessed in the first information and/or the frequency band corresponding to the cell to be accessed. target area.

The identification in this embodiment of the application can be represented by "*". Assuming that the control center 302 determines that the cell 1 to be accessed is the target cell of the terminal device, the cell 1 to be accessed can be identified. For example, the cell 1 to be accessed can be identified. If * is marked on the access cell 1, the terminal device can know that the cell 1 to be accessed is a target cell that can be accessed.

It should be understood that the above-mentioned identifications are for illustration only, and may also be marked with other identifications, for example, may be marked with "1" or "#", which is not specifically limited in this application, as long as the determined target cell can be combined with other cells The identifiers that are distinguished can all be applied in the embodiments of the present application.

In the solution provided by the embodiment of this application, the first information may also include the ID of each cell to be accessed and/or the frequency band corresponding to each cell to be accessed, which is conducive to the accuracy of the terminal device camping on the target cell, and further can improve user experience.

It has been explained above that the evaluation and sorting module 301 can determine the target cell of the terminal device from at least one cell to be accessed according to the first information. Determining the target cell from at least one cell to be accessed may be implemented in the following manner, which is detailed below.

Optionally, in some embodiments, the evaluation and sorting module 301 is further configured to sort the scores of each cell to be accessed according to the first information; the control center 302 is further configured to : According to the sorting, determine the cell with the highest score as the target cell of the terminal device.

As mentioned above, calculating the score of the cell to be accessed can be calculated by the above method. When sorting each of the at least one cell to be accessed, the scores of all cells meeting the first condition may be calculated first, and then uniformly sorted. In the process of sorting, it can be sorted from high to low, or from low to high, without limitation.

In the embodiment of the present application, the ranking of scores may be displayed in the form of a table or in the form of a graph, which is not specifically limited in the present application, as long as the form that can represent the ranking can be applied to this application.

In the process of determining the cell with the highest score as the target cell of the terminal device according to the ranking, the following two situations may be included according to whether the terminal device accesses the network for the first time, and details are described below.

Scenario 1: The terminal device accesses the network for the first time

When the terminal device accesses the network for the first time, the cells that meet the first condition in the first frequency band supported by the terminal device may be scored, and the obtained scores may be sorted.

Exemplarily, assuming that there are 3 cells in the first frequency band that meet the first condition, that is, there are 3 cells in the first frequency band that meet the S criterion, then the evaluation and sorting module 301 in the terminal device can calculate the scores for these 3 cells and put in order.

Assume that the cell 1 to be accessed is an NR anchor cell and successfully resides in 5G, the bandwidth of the cell 1 to be accessed is broadband, and the cell 1 to be accessed is a cell with level 2 congestion, and the cell to be accessed 1 starts CA , the MIMO activation level of the cell 1 to be accessed is 2 input and output levels, and the current score of the cell to be accessed is 100 by default, then according to the above formula (1), the final score of the cell 1 to be accessed can be determined as S1=100+ 80-0-40+20+20=180 points.

Similarly, assuming that the cell 2 to be accessed is an NR anchor cell, and the registration has not been successful yet, the bandwidth of the cell 2 to be accessed is broadband, and the cell 2 to be accessed is a cell with a congestion degree of level 3, and the cell 2 to be accessed is Start CA, the MIMO activation level of the cell 2 to be accessed is 4 input and output levels, and the current score of the cell to be accessed is 100 by default, then according to the above formula (1), the final score of the cell 2 to be accessed can be determined as S2= 100+40-0-60+20+40=140 points.

Calculate the score of the cell 3 to be accessed in the same way, assuming that the final score S3 of the cell 3 to be accessed is 160.

Based on the scores of the cells to be accessed calculated above, the final ranking of the scores may be: cell to be accessed 1 > cell to be accessed 3 > cell to be accessed 2 .

The control center 302 can obtain the final ranking of scores from the evaluation and ranking module 301, and then determine the cell with the highest score as the target cell of the terminal device, that is, determine the cell 1 to be accessed as the target cell of the terminal device.

Case 2: The terminal device is not accessing the network for the first time

In the case that the terminal device is not accessing the network for the first time, the cell currently accessed by the terminal device and the neighboring cells of the currently accessed cell may be scored, and the obtained scores may be sorted.

For example, assuming that the terminal device has been connected to the network before, the network search module in the terminal device can use the currently accessed cell as the primary cell, and search for all adjacent cells (or adjacent cells) around the primary cell, Record information such as RSRP, SINR, NR anchor point, bandwidth, and congestion degree of each cell, and calculate the score of each cell based on this information.

Assume that the current access cell of the terminal device is the cell to be accessed 1, and there are three adjacent cells around the cell to be accessed, namely the cell to be accessed 2, the cell to be accessed 3, and the cell to be accessed 4. The network search module can search the information of these three adjacent cells, and determine the score of each cell to be accessed based on the same calculation method as above.

If the score of the currently accessed cell 1 to be accessed is 180, the scores of the cell to be accessed 2 , the cell to be accessed 3 , and the cell to be accessed 4 are 140, 120, and 200, respectively. The final ranking of scoring may be: cell to be accessed 4 > cell to be accessed 1 > cell to be accessed 2 > cell to be accessed 3 .

The control center 302 can obtain the final score ranking from the evaluation and ranking module 301, and then determine the cell with the highest score as the target cell of the terminal device, that is, the cell 4 to be accessed can be re-determined as the target cell of the terminal device.

It should be noted that the evaluation and ranking module 301 in the embodiment of the present application can be one module or different modules, for example, it can include an evaluation module and a ranking module, which can respectively score and rank each cell to be accessed , without restriction.

In the solution provided by the embodiment of the present application, the control center can determine the cell with the highest ranking as the target cell of the terminal device, which can further ensure that the terminal device preferentially camps in a high-quality cell, thereby improving user experience.

Based on this, some possible ways of determining the target cell of the terminal device are mainly described above, and the following will mainly explain whether the terminal device determines whether to camp on the network based on the performance of the target cell, please refer to the following for details.

Optionally, in some embodiments, as shown in FIG. 4 , which is a terminal device 300 provided in another embodiment of the present application, the terminal device 300 may further include: a network presence module 313 .

The network camping module 313 is configured to: if the target cell satisfies the registration condition, the terminal device camps in the target cell; or, if the target cell does not meet the registration condition, feedback to the control center 302 The target cell does not satisfy the registration condition; the control center 302 is further configured to: according to the ranking, determine the cell with the second highest score as the target cell of the terminal device.

The network-based module 313 in the embodiment of this application can access the network according to the target cell determined by the control center 302. If the target cell meets the registration conditions (the signal strength of the target cell meets the requirements, and the network device side allows access), the terminal The device will continue to complete the registration, authentication, and dialing procedures; if the target cell does not meet the above registration conditions, the network station module 313 can feed this information back to the control center 302, and the control center 302 can base on the determined at least one to-be-accessed For the sorting of the cells, the cell with the second highest score is determined as the target cell of the terminal device.

Exemplarily, as described above, assuming that there are 3 cells in the first frequency band that meet the first condition, based on the scores of the cells to be accessed calculated above, the final ranking of the scores can be: cell to be accessed 1 > cell to be accessed 3> To be connected to cell 2.

If the cell 1 to be accessed meets the registration conditions, that is, the signal strength of the cell 1 to be accessed at this time meets the requirements, and the network device side allows the terminal device to access, then the terminal device can camp on the network to the cell 1 to be accessed; The access cell 1 does not meet the registration conditions, that is, the signal strength of the cell 1 to be accessed at this time does not meet the requirements, and the network device side does not allow the terminal device to access, then the network station module 313 can feed back this information to the control center 302, The control center 302 may determine the second-ranked cell 3 to be accessed as the target cell of the terminal device, and the network camping module 313 determines whether the cell 3 to be accessed can be registered based on the same judgment method as above.

It should be noted that if the target cell determined by the control center 302 does not meet the registration conditions, the network presence module 313 may feed back this information to the control center 302 . One implementation may be that the network station module 313 directly feeds back to the control center 302 that the target cell does not meet the registration conditions; another implementation may be that the network station module 313 may feed back a message to the control center 302, which includes the target cell This information does not meet the conditions for registration; without limitation.

Optionally, in some embodiments, if the terminal device camps in the target cell, the control center 302 is further configured to: drive the evaluation and sorting module 301 to determine the target cell every first duration and the second information of the adjacent cells of the target cell, the second information includes the scores of the target cell and the adjacent cells of the target cell; according to the second information, re-determine the target area.

In the embodiment of the present application, after the terminal device camps in the target cell, the terminal device can also periodically complete the signal measurement and wireless air interface resource measurement of the target cell with the network device. The control center 302 may periodically drive the evaluation and sorting module 301 to determine second information about the target cell (the currently accessed cell) and neighboring cells of the target cell, the second information including the current score and The current score of the adjacent cell, and re-determine the target cell of the terminal device according to the current score of the target cell and the current score of the adjacent cell.

Similarly, after the evaluation and sorting module 301 obtains the current score of the currently accessed cell and the current score of the neighboring cell, the obtained cell score can be sent to the control center 302, and the control center 302 can re-determine the terminal according to the score The device's target cell. For example, the obtained scores of the cells may be reordered, and the reordered cell with the highest score is determined as the target cell of the terminal device.

The first preset duration in this embodiment of the present application may be preset, may be continuously adjusted, or may be specified based on an agreement, and is not limited.

In the solution provided by the embodiment of the present application, after the terminal device camps in the target cell, the control center can also drive the evaluation and sorting module to determine the second information of the target cell where it currently resides and its adjacent cells every first time interval, Therefore, the target cell can be adjusted based on the obtained second information, and the performance of the cell where the terminal device resides can be further ensured, thereby improving user experience.

Optionally, in some embodiments, the score of the target cell included in the second information is obtained by weighting based on the current score and historical score of the target cell; the target cell included in the second information The scores of the neighboring cells of the cell are obtained through weighting based on the current scores and historical scores of the neighboring cells.

The second information in the embodiment of the present application may include the scores of the target cell and the adjacent cells of the target cell. The included score of the target cell may be obtained by weighting the current score and historical score of the target cell. The included The score of the neighboring cell may be obtained by weighting the current score and the historical score of the neighboring cell.

In other words, the score of the target cell included in the second information can be obtained by multiplying the current score and historical score of the target cell by the corresponding weighting coefficient and taking the average value, and the included score of the adjacent cell can be It is obtained by multiplying the current score and historical score of the adjacent cell by the corresponding weighting coefficient and taking the average value.

The historical scores mentioned in the above embodiment may include the previous 3 historical scores before the current score. Taking the current scoring time as 1:00 as an example, assuming that the above-mentioned first duration is preset to 30 minutes, then the historical score 3 can be the score of the terminal device at 12:30, and the historical score can be the score of the terminal device at 12:00. A score of :00 and a historical score of 1 may be the score of the terminal device at 11:30. Therefore, the score of the cell to be accessed (the target cell or the adjacent cell of the target cell) can be calculated based on the following formula (2):

Score of the cell to be accessed = (current score + a*history score 1+b*history score 2+c*history score 3)/4 (2)

Among them, a, b, and c are the weighting coefficients of historical scores at different moments, respectively, and the value of the coefficients can be set based on the distance between the moment of historical scores and the current moment. For example, it can be set based on the following rules: the closer the time of the historical score is to the current time, the larger the value of the coefficient; the farther the time of the historical score is from the current time, the smaller the value of the coefficient.

For example, the values of a, b, and c can be 0.1, 0.5, and 0.9, respectively. It should be noted that the value of this coefficient can also be other values, which are not limited.

For example, assuming that the current score of the target cell is 180 points, the previous three historical scores from far to near are 120, 160 and 140 respectively, that is, the above-mentioned historical score 1, historical score 2, and historical score 3 are respectively 120, 160 and 140, if the values of the above-mentioned weighting coefficients a, b, and c are respectively set to 0.1, 0.5, and 0.9, the evaluation and sorting module 301 can average them according to the above-mentioned formula (2), then the average value of the target cell is (180+120*0.1+160*0.5+140*0.9)/4=99.5 points.

The average score of the adjacent cells of the target cell can be determined based on the above-mentioned similar method. Assume that the adjacent cells of the target cell include 3 cells, which are respectively the adjacent cell 1, the adjacent cell 2 and the adjacent cell 3. For these 3 After the current score of the adjacent cells and the previous three historical scores are weighted and averaged, the average scores of the three adjacent cells are 120, 100 and 160 in sequence. Since the ranking of scores at this time is: adjacent cell 3 > adjacent cell 1 > adjacent cell 2 > target cell, the terminal device can re-determine the adjacent cell 3 as the target cell, and further, the terminal device can switch to the re-determined cell The neighbor cell 3 with the highest score is used to realize the intelligent network selection of terminal equipment.

It should be understood that the above numerical values are for illustration only, and may also be other numerical values, which should not be particularly limited to the present application.

It should be noted that the historical scores listed in the above embodiments include the previous three historical scores of the current score. In some embodiments, the historical scores may also include the previous n historical scores of the current score, where n The value may be any positive integer, for example, the value of n may be 4 or 5, etc., without limitation.

In the solution provided by the embodiment of the present application, the score included in the second information is obtained by weighting based on the current score of the cell and the historical score of the cell, which can further ensure the performance of the cell where the terminal device resides, thereby improving user experience.

Optionally, in some embodiments, the control center 302 is further configured to: trigger the terminal device to perform the intelligent network selection.

The "trigger" in the embodiment of this application can be understood as a certain reaction caused by some conditions, etc., and the control center 302 is used to trigger the terminal equipment to perform intelligent network selection, which can be understood as the control center 302 based on certain conditions that the terminal equipment meets The intelligent network selection of the terminal equipment is caused.

In the embodiment of the present application, the control center 302 can trigger the terminal device to perform intelligent network selection based on some conditions that the terminal device meets. In other words, under what conditions the terminal device will perform intelligent network selection, please refer to the description below for details.

Optionally, in some embodiments, the control center 302 is further configured to:

Triggering the terminal device to perform the intelligent network selection based on a preset period; and/or,

When the terminal device is in an idle state, triggering the terminal device to perform the intelligent network selection; and/or,

When the user manually operates, triggering the terminal device to perform the intelligent network selection; and/or,

When the terminal device is turned on for the first time or after being reset, the terminal device is triggered to perform the intelligent network selection.

In the embodiment of this application, triggering the terminal device to perform intelligent network selection may include the following methods:

Method 1: The control center 302 can trigger terminal devices to perform intelligent network selection based on a preset period. For example, the control center 302 can perform intelligent network selection every 2 days or 3 days, without limitation;

Specifically, the terminal device can be triggered to perform intelligent network selection based on a preset period by configuring a timer.

Method 2: When the terminal device is in an idle state, for example, when the terminal device has no service connection, the control center 302 can trigger the terminal device to perform intelligent network selection;

Method 3: The user can also manually operate the trigger terminal device to perform intelligent network selection. For example, the user can manually operate the user interface (user interface, UI), web page (website, Web) UI or application (application, APP) to send a message to the control Center 302, thereby triggering terminal equipment to perform intelligent network selection;

Method 4: After the terminal device is started or reset for the first time, for example, the user’s newly purchased terminal device accesses the Internet in the user’s area for the first time, or after the user’s purchased terminal device is reset (it can also be understood as format), the control center 302 can trigger the terminal device to perform intelligent network selection.

It should be noted that among the above four methods, the control center 302 may also trigger the intelligent network selection of the terminal device in combination with multiple methods, and the multiple methods may include two, three or four. Taking the combination of the two methods as an example, for example, the control center 302 can combine methods 1 and 2 to trigger the terminal device to perform intelligent network selection, that is, trigger the terminal device to perform intelligent network selection when the preset cycle is met and the terminal device is in an idle state.

Similarly, other combinations are similar to the above examples, and for the sake of brevity, details are not repeated here.

Optionally, in some embodiments, the control center 302 is further configured to: trigger the terminal device to perform the intelligent network selection based on an attention (AT) instruction.

The AT command in this embodiment of the present application may be an command to trigger a terminal device to perform intelligent network selection. The control center 302 can send an AT command to the parameter collection module, and the parameter collection module can perform the process of intelligent network selection after receiving the AT command.

In the embodiment of the present application, the AT command can be used as an information communication method, which can be applied to the information communication between the data terminal equipment and the data circuit terminal equipment, and can be applied to the user terminal equipment of the wireless mobile communication system.

Optionally, in some embodiments, as shown in FIG. 4 , the terminal device further includes: a parameter acquisition module 312: configured to acquire each of the cells to be accessed and the relative information of each of the cells to be accessed. The third information of the neighboring cell, the third information includes at least one of the following parameters: the residence situation of the NR anchor point of each cell to be accessed, the bandwidth of each cell to be accessed, the The congestion degree of each cell to be accessed, the CA activation status of each cell to be accessed, and the MIMO activation level of each cell to be accessed; the evaluation and sorting module 301 is further configured to: according to the The third information is to determine the first information of each cell to be accessed.

In the embodiment of the present application, when determining the first information, the following two methods can be divided according to whether the terminal device accesses the network for the first time.

Method 1: The terminal device accesses the network for the first time

In the first manner, determining the first information may be divided into two implementation manners, which are detailed below.

In an implementation manner, the terminal device may determine the first information based on the following steps:

1), the control center 302 obtains the list information of the frequency bands supported by the terminal equipment from the parameter acquisition module 312 through the AT command;

2), the control center 302 sends the list of frequency bands supported by the terminal equipment to the network search module 311, and the network search module 311 uses the received frequency bands to search the network, and when the cell to be accessed under the frequency band is obtained, The parameter collection module 312 collects the information of the cell to be accessed (including the residence situation, bandwidth, congestion degree, CA startup situation and MIMO startup level of the NR anchor point), and reports the cell information to the control center 302;

3) The control center 302 triggers the next frequency band in the frequency band list to search the network until all the frequency bands in the list are searched.

4). The control center 302 determines the first information according to the received cell information.

In another implementation manner, the terminal device may determine the first information based on the following steps:

1), the control center 302 sends an AT command to the parameter collection module 312, and the parameter collection module 312 obtains the list information of the frequency bands supported by the terminal device;

2), the network search module 311 obtains the list information of the frequency bands supported by the terminal device from the parameter acquisition module 312;

3), the search network module 311 utilizes the obtained frequency band to search the network, when the sub-district to be accessed under each frequency band in the frequency band list is obtained, the information of the sub-district to be accessed is collected by the parameter collection module 312 (including NR anchor point residency situation, bandwidth, congestion degree, CA startup situation and MIMO startup level), and report the cell information to the control center 302;

4). The control center 302 determines the first information according to the received cell information.

Method 2: The terminal device does not access the network for the first time

The terminal device may determine the first information based on the following steps:

1), the parameter collection module 312 acquires the information of the current cell and its adjacent cells accessed by the terminal device (including the residence situation, bandwidth, congestion degree, CA startup situation and MIMO startup level of the NR anchor point), and the cell The information is reported to the control center 302;

2). The control center 302 determines the first information according to the received cell information.

In order to facilitate the understanding of the whole text, the following will generally describe the process of intelligent network selection in this application with reference to FIG. 5 .

a. The 4G or 5G module 320 feeds back the network search results and the information of the searched cells to the AP310;

b. AP310 determines the timing of intelligent network selection, calculates the priority of the received cells, sorts them and instructs them to reside;

c. AP310 instructs 4G or 5G module 320 to start triggering high-quality cell network presence;

d. The 4G or 5G module 320 implements network presence.

For the specific steps of intelligent network selection, reference may be made to the above descriptions in FIG. 3 and FIG. 4 , and for the sake of brevity, details are not repeated here.

The terminal device provided by the embodiment of the present application has been described in detail above with reference to FIG. 1 to FIG. 5 . Hereinafter, the method for intelligent network selection according to the embodiment of the present application will be described in detail with reference to FIGS. 6-7 .

FIG. 6 shows a schematic flowchart of a method 600 for intelligent network selection according to an embodiment of the present application. The method 600 may be executed by the above-mentioned terminal device 300, or may be executed by a chip or component applied to the terminal device. As shown in FIG. 6, the method 600 may include steps S610 and S620.

S610. Determine first information of at least one cell to be accessed, where the first information includes a score of each cell to be accessed in the at least one cell to be accessed, and the signal quality of each cell to be accessed satisfies A first condition. The first condition is that the level value of the at least one cell to be accessed is greater than a first threshold and the quality value of the at least one cell to be accessed is greater than a second threshold.

S620. Determine a target cell of the terminal device from the at least one cell to be accessed according to the first information.

Optionally, in some embodiments, the score is determined based on at least one of the following parameters: the residence situation of the new air interface NR anchor point of the at least one cell to be accessed, the at least one The bandwidth of the cell to be accessed, the congestion degree of the at least one cell to be accessed, the carrier aggregation CA activation status of the at least one cell to be accessed, and the multiple-input multiple-output MIMO activation level of the at least one cell to be accessed .

Optionally, in some embodiments, if the terminal device accesses the network for the first time, the at least one cell to be accessed is a cell in a first frequency band, and the first frequency band is a frequency band supported by the terminal device; or,

If the terminal device is not accessing the network for the first time, the at least one cell to be accessed is a current cell where the terminal device resides and a neighboring cell of the current cell.

Optionally, in some embodiments, the first information further includes an ID of each cell to be accessed and/or a frequency band corresponding to each cell to be accessed.

Optionally, in some embodiments, the determining the target cell of the terminal device from the at least one cell to be accessed according to the first information includes: determining the target cell of the terminal device according to the first information. The scores of each cell to be accessed are sorted; according to the sorting, the cell with the highest score is determined as the target cell of the terminal device.

Optionally, in some embodiments, the method further includes: if the target cell satisfies the registration condition, camping the terminal device to the target cell; or, if the target cell does not meet the registration condition condition, feeding back to the control center that the target cell does not meet the registration condition; according to the sorting, determining the cell with the second highest score as the target cell of the terminal device.

Optionally, in some embodiments, FIG. 7 shows a schematic flowchart of a method 600 for intelligent network selection according to another embodiment of the present application. If the terminal device camps in the target cell, the method 600 may further include steps S630-S640.

S630. The driver evaluation and ranking module determines second information of the target cell and neighboring cells of the target cell every first time period, where the second information includes the target cell and neighboring cells of the target cell rating.

S640. Re-determine the target cell of the terminal device according to the second information.

Optionally, in some embodiments, the score of the target cell included in the second information is obtained by weighting based on the current score and historical score of the target cell; the target cell included in the second information The scores of the neighboring cells of the cell are obtained through weighting based on the current scores and historical scores of the neighboring cells.

Optionally, in some embodiments, the method further includes: triggering the terminal device to perform the intelligent network selection.

Optionally, in some embodiments, the triggering the terminal device to perform the intelligent network selection includes:

Triggering the terminal device to perform the intelligent network selection based on a preset period; and/or,

When the terminal device is in an idle state, triggering the terminal device to perform the intelligent network selection; and/or,

When the user manually operates, triggering the terminal device to perform the intelligent network selection; and/or,

When the terminal device is turned on for the first time or after being reset, the terminal device is triggered to perform the intelligent network selection.

Optionally, in some embodiments, the triggering the terminal device to perform the intelligent network selection includes: triggering the terminal device to perform the intelligent network selection based on an AT instruction.

Optionally, in some embodiments, the method further includes: acquiring third information about each cell to be accessed and a neighboring cell of each cell to be accessed, the third information including the following At least one of the parameters: the residence situation of the NR anchor point of each cell to be accessed, the bandwidth of each cell to be accessed, the congestion degree of each cell to be accessed, the The CA activation status of a cell to be accessed and the MIMO activation level of each cell to be accessed; according to the third information, determining the first information of each cell to be accessed.

Fig. 8 is a schematic structural diagram of a communication apparatus 800 provided by an embodiment of the present application, for example, it may be the terminal device in the foregoing embodiment. As shown in FIG. 8 , the communication device 800 includes a processor 810 and a transceiver 820 . Optionally, the communications device 800 further includes a memory 830 . Among them, the processor 810, the transceiver 820, and the memory 830 communicate with each other through an internal connection path to transmit control and/or data signals, the memory 830 is used to store computer programs, and the processor 810 is used to call from the memory 830 And run the computer program to control the transceiver 820 to send and receive signals.

The foregoing processor 810 and memory 830 may be combined into a processing device, and the processor 810 is configured to execute program codes stored in the memory 830 to implement functions of the terminal device in the foregoing method embodiments. During specific implementation, the memory 830 may also be integrated in the processor 810, or be independent of the processor 810. The transceiver 820 may be implemented by means of a transceiver circuit.

The above-mentioned communication device 800 may further include an antenna 840 for transmitting downlink data or downlink control signaling output by the transceiver 820 through wireless signals, or receiving uplink data or uplink control signaling and sending them to the transceiver 820 for further processing.

It should be understood that the apparatus 800 may correspond to the terminal device in the method 600 according to the embodiment of the present application, and the apparatus 800 may also be a chip or a component applied to the terminal device. In addition, each unit in the device 800 implements the corresponding process in the method 600 in FIG. 6 and/or FIG. 7 , and the specific process for each unit to perform the above-mentioned corresponding steps has been described in detail in the method 600. For the sake of brevity, no more details are given here. .

FIG. 9 is a schematic structural diagram of a chip provided by an embodiment of the present application. The chip 900 shown in FIG. 9 includes a processor 910, and the processor 910 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 9 , the chip 900 may further include a memory 920 . Wherein, the processor 910 can invoke and run a computer program from the memory 920, so as to execute the steps of the method 600 in the embodiment of the present application.

Wherein, the memory 920 may be an independent device independent of the processor 910 , or may be integrated in the processor 910 .

Optionally, the chip 900 may also include an input interface 930 . Wherein, the processor 910 can control the input interface 930 to communicate with other devices or chips, specifically, can obtain information or data sent by other devices or chips.

Optionally, the chip 900 may also include an output interface 940 . Wherein, the processor 910 can control the output interface 940 to communicate with other devices or chips, specifically, can output information or data to other devices or chips.

Optionally, the chip can be applied to the terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the terminal device in the methods of the embodiments of the present application. For the sake of brevity, details are not repeated here.

It should be understood that the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.

The embodiment of the present application also provides a computer-readable storage medium for storing computer programs.

Optionally, the computer-readable storage medium can be applied to the terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity, here No longer.

The embodiment of the present application also provides a computer program product, including computer program instructions.

Optionally, the computer program product can be applied to the terminal device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the terminal device in the methods of the embodiment of the present application. For the sake of brevity, the Let me repeat.

The embodiment of the present application also provides a computer program.

Optionally, the computer program can be applied to the terminal device in the embodiment of the present application. When the computer program is run on the computer, the computer executes the corresponding process implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity , which will not be repeated here.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, and details are not repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative, and the division of the units is only a logical function division. In actual implementation, there may be other division methods, for example, multiple units or components may be combined. In another point, the mutual coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interfaces, devices or units.

In addition, each functional unit in each embodiment of the present application may be integrated into one physical entity, or each unit may correspond to one physical entity, or two or more units may be integrated into one physical entity.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other various media that can store program codes. .

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims (26)

1. A terminal device, characterized in that, comprising: An evaluation and sorting module, configured to determine first information of at least one cell to be accessed, where the first information includes the score of each cell to be accessed in the at least one cell to be accessed, and each cell to be accessed The signal quality of the cell satisfies a first condition, the first condition being that the level value of the at least one cell to be accessed is greater than a first threshold and the quality value of the at least one cell to be accessed is greater than a second threshold; a control center, configured to determine a target cell of the terminal device from the at least one cell to be accessed according to the first information; Wherein, the score is determined based on at least one of the following parameters: The residency situation of the new air interface NR anchor point of the at least one cell to be accessed, the carrier aggregation CA startup status of the at least one cell to be accessed, and the multiple-input multiple-output MIMO startup level of the at least one cell to be accessed . 2. The terminal device according to claim 1, wherein the score is determined based on at least one of the following parameters: the bandwidth of the at least one cell to be accessed, the bandwidth of the at least one cell to be accessed congestion degree. 3. The terminal device according to claim 1 or 2, wherein if the terminal device accesses the network for the first time, the at least one cell to be accessed is a cell in the first frequency band, and the first frequency band is the frequency bands supported by the terminal device; or, If the terminal device is not accessing the network for the first time, the at least one cell to be accessed is a current cell where the terminal device resides and a neighboring cell of the current cell. 4. The terminal device according to claim 1 or 2, wherein the first information further includes the ID of each cell to be accessed and/or the frequency band corresponding to each cell to be accessed . 5. The terminal device according to claim 1 or 2, wherein the evaluation and sorting module is further configured to sort the score of each cell to be accessed according to the first information; The control center is further configured to: according to the sorting, determine the cell with the highest score as the target cell of the terminal device. 6. The terminal device according to claim 5, further comprising: On-net module for: If the target cell satisfies the registration condition, then the terminal device camps on the network to the target cell; or, if the target cell does not meet the registration condition, feeding back to the control center that the target cell does not meet the registration condition; The control center is further configured to: according to the sorting, determine the cell with the second highest score as the target cell of the terminal device. 7. The terminal device according to claim 1 or 2, wherein if the terminal device resides in the target cell, the control center is further configured to: Driving the evaluation and sorting module to determine second information about the target cell and adjacent cells of the target cell every first time period, the second information including the target cell and adjacent cells of the target cell rating; Re-determine the target cell of the terminal device according to the second information. 8. The terminal device according to claim 7, wherein the score of the target cell included in the second information is obtained by weighting based on the current score and historical score of the target cell; The scores of the neighboring cells of the target cell included in the second information are obtained by weighting based on the current scores and historical scores of the neighboring cells. 9. The terminal device according to claim 1 or 2, wherein the control center is further used for: Triggering the terminal device to perform intelligent network selection. 10. The terminal device according to claim 9, wherein the control center is further used for: Triggering the terminal device to perform the intelligent network selection based on a preset period; and/or, When the terminal device is in an idle state, triggering the terminal device to perform the intelligent network selection; and/or, When the user manually operates, triggering the terminal device to perform the intelligent network selection; and/or, When the terminal device is turned on for the first time or after being reset, the terminal device is triggered to perform the intelligent network selection. 11. The terminal device according to claim 10, wherein the control center is further used for: Triggering the terminal device to perform the intelligent network selection based on an AT instruction. 12. The terminal device according to any one of claims 1-2, 6, 8, 10-11, wherein the terminal device further comprises: A parameter collection module: used to acquire third information about each cell to be accessed and a neighboring cell of each cell to be accessed, the third information including at least one of the following parameters: each The residence status of the NR anchor point of a cell to be accessed, the bandwidth of each cell to be accessed, the congestion degree of each cell to be accessed, the CA activation status of each cell to be accessed, and The MIMO activation level of each cell to be accessed; The evaluation and sorting module is further configured to: determine the first information of each cell to be accessed according to the third information. 13. A method for intelligent network selection, comprising: determining first information of at least one cell to be accessed, where the first information includes a score of each cell to be accessed in the at least one cell to be accessed, and the signal quality of each cell to be accessed satisfies the first A condition, the first condition being that the level value of the at least one cell to be accessed is greater than a first threshold and the quality value of the at least one cell to be accessed is greater than a second threshold; determining a target cell of the terminal device from the at least one cell to be accessed according to the first information; Wherein, the score is determined based on at least one of the following parameters: The residency situation of the new air interface NR anchor point of the at least one cell to be accessed, the carrier aggregation CA startup status of the at least one cell to be accessed, and the multiple-input multiple-output MIMO startup level of the at least one cell to be accessed . 14. The method according to claim 13, wherein the score is determined based on at least one of the following parameters: the bandwidth of the at least one cell to be accessed, the congestion of the at least one cell to be accessed Spend. 15. The method according to claim 13 or 14, wherein if the terminal device accesses the network for the first time, the at least one cell to be accessed is a cell in the first frequency band, and the first frequency band is the cell in the first frequency band. the frequency bands supported by the above-mentioned terminal equipment; or, If the terminal device is not accessing the network for the first time, the at least one cell to be accessed is a current cell where the terminal device resides and a neighboring cell of the current cell. 16. The method according to claim 13 or 14, wherein the first information further includes an ID of each cell to be accessed and/or a frequency band corresponding to each cell to be accessed. 17. The method according to claim 13 or 14, wherein the determining the target cell of the terminal device from the at least one cell to be accessed according to the first information comprises: sorting the scores of each cell to be accessed according to the first information; According to the sorting, the cell with the highest score is determined as the target cell of the terminal device. 18. The method of claim 17, further comprising: If the target cell satisfies the registration condition, then the terminal device camps on the network to the target cell; or, If the target cell does not meet the registration condition, feeding back to the control center that the target cell does not meet the registration condition; According to the sorting, the cell with the second highest score is determined as the target cell of the terminal device. 19. The method according to claim 13 or 14, characterized in that, if the terminal equipment camps in the target cell, the method further comprises: The driver evaluation and sorting module determines second information of the target cell and the adjacent cells of the target cell every first time length, the second information includes the score of the target cell and the adjacent cells of the target cell ; Re-determine the target cell of the terminal device according to the second information. 20. The method according to claim 19, wherein the score of the target cell included in the second information is obtained by weighting based on the current score and historical score of the target cell; The scores of the neighboring cells of the target cell included in the second information are obtained by weighting based on the current scores and historical scores of the neighboring cells. 21. The method according to claim 13 or 14, further comprising: Triggering the terminal device to perform the intelligent network selection. 22. The method according to claim 21, wherein the triggering the terminal device to perform the intelligent network selection comprises: Triggering the terminal device to perform the intelligent network selection based on a preset period; and/or, When the terminal device is in an idle state, triggering the terminal device to perform the intelligent network selection; and/or, When the user manually operates, triggering the terminal device to perform the intelligent network selection; and/or, When the terminal device is turned on for the first time or after being reset, the terminal device is triggered to perform the intelligent network selection. 23. The method according to claim 22, wherein the triggering the terminal device to perform the intelligent network selection comprises: Triggering the terminal device to perform the intelligent network selection based on an AT command. 24. The method according to any one of claims 13-14, 18, 20, 22-23, further comprising: Obtain third information about each cell to be accessed and a neighboring cell of each cell to be accessed, where the third information includes at least one of the following parameters: The residence status of the NR anchor point, the bandwidth of each cell to be accessed, the congestion degree of each cell to be accessed, the CA activation status of each cell to be accessed, and the The MIMO activation level of the incoming cell; Determine the first information of each cell to be accessed according to the third information. 25. A computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed, the method according to any one of claims 13 to 24 is realized . 26. A chip system, characterized in that the chip system comprises: memory for storing instructions; The processor is configured to call and execute the instructions from the memory, so that the communication device installed with the system-on-a-chip executes the method according to any one of claims 13-24.

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