CN113645689A

CN113645689A - Network access registration method, device, equipment and storage medium

Info

Publication number: CN113645689A
Application number: CN202111130897.6A
Authority: CN
Inventors: 倪金金; 金逸
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2021-11-12
Also published as: WO2023046160A1

Abstract

The embodiment of the invention provides a network access registration method, a network access registration device, terminal equipment and a storage medium. The method is applied to electronic terminal equipment (UE), a local PLMN list is stored in the UE, the PLMN list comprises a local home PLMN and other PLMNs of the UE, the PLMN which is the same as the local home PLMN is the highest registration priority, the other PLMNs in the PLMN list correspond to the registration priorities in a one-to-one mode according to a preset priority rule, and the UE receives a message which is sent by a network side of a current cell which attempts to access and carries a reason causing network access abnormity; and reselecting the cell containing the PLMN in the local PLMN list for re-registration according to the descending order of the registration priority of the PLMN in the local PLMN list until the registration is successful. When the network access is abnormal, the network reselection is carried out according to the registration priority, so that the success rate and the efficiency of the UE network registration can be improved.

Description

Network access registration method, device, equipment and storage medium

[ technical field ] A method for producing a semiconductor device

The embodiment of the invention relates to the technical field of communication, in particular to a network access registration method, a network access registration device, terminal equipment and a storage medium.

[ background of the invention ]

On the basis of the unshared network, the shared network has come up, and no matter what kind of network the terminal wants to access, the terminal needs to send a registration request message to the core network device through a specific access network device (e.g., a base station), and then if a system message of successful registration is received, the terminal is indicated to successfully access the network. In contrast, during the network access registration of the terminal, many reasons may also occur that cause network access abnormality, for example, the core network device and the specific access network device cannot be synchronized.

However, in the prior art, the terminal cannot receive the system message indicating the cause of the abnormality, and only can determine that the registration fails and start the timer, and the terminal continues to attempt registration in the specific access network device after the pending timer expires. If the registration is failed to be attempted for many times, the timer is started for many times, and other timers with longer time may be started, so that the network access delay is caused by frequent network registration failure of the terminal, and the time for the terminal to register is longer and the success rate is lower.

[ summary of the invention ]

In order to solve the above problem, embodiments of the present invention provide a network access registration method, apparatus, device, and storage medium. When the network access is abnormal, the network is processed through the registration priority, and the success rate and the efficiency of the UE network registration can be improved.

In a first aspect, the present application provides a network access registration method, which is applied to an electronic terminal device UE, where the UE stores a local PLMN list, where the PLMN list includes a home PLMN of the UE and other PLMNs, and the PLMNs in the PLMN list correspond to registration priorities in a one-to-one manner according to a preset priority rule, where the method includes:

receiving a message which is sent by a network side of a current cell trying to access and carries a reason causing network access abnormity;

and reselecting the cell containing the PLMN in the local PLMN list for re-registration according to the descending order of the registration priority of the PLMN in the local PLMN list until the registration is successful.

In the embodiment of the invention, when the network access is abnormal, the UE can receive and analyze the message carrying the reason causing the abnormal network access, and then quickly and accurately reselect the cell through the registration priority, so that the network access delay caused by frequent network registration failure of the UE is prevented, and the success rate and the efficiency of the network registration of the UE can be improved.

In a possible implementation manner, when the current cell is a shared network, before the reselecting the cell including the PLMN in the home PLMN list for re-registration, the method further includes:

setting the cells with the same PLMN sequence as the current cell in the PLMN list as forbidden cells so that the UE can forbid the forbidden cells in the registration process.

In a possible implementation manner, when the current cell is a non-shared network, before the reselecting the cell including the PLMN in the home PLMN list for re-registration, the method further includes:

and setting the current cell as a forbidden cell so that the UE can forbid the forbidden cell in a registration process.

In one possible implementation, the local home PLMN of the UE is different from the home PLMN of the current cell.

In a possible implementation manner, the reselecting a cell including a PLMN in the local PLMN list for re-registration until registration is successful, where the PLMN in the local PLMN list is the same as a local home PLMN of the UE and is the highest registration priority, includes:

re-searching a first cell, wherein the home PLMN of the first cell is the same as the local home PLMN of the UE;

if the first cell cannot be searched, searching a next second cell containing other PLMNs in the local PLMN list according to the descending order of the registration priority of other PLMNs in the local PLMN list;

and if the second cell is found, trying to reside and register, and if the registration is unsuccessful, continuing to find the second cell and trying to access the network for registration according to the descending order of the registration priority of other PLMNs in the local PLMN list until the registration is successful.

In a possible implementation manner, the reselecting the cell including the PLMN in the home PLMN list for re-network access registration according to an order of decreasing registration priorities of the PLMNs in the home PLMN list until registration is successful further includes:

and if the first cell is found, performing network access registration.

In a possible implementation manner, a PLMN in the PLMN list that is the same as a local home PLMN of the UE is the highest registration priority, and the preset priority rules of the remaining PLMNs in the PLMN list include:

according to the signal intensity of the corresponding cell of the PLMN, the stronger the signal is, the higher the corresponding priority is;

or according to the PLMN historical registration success rate, the higher the success rate is, the higher the corresponding priority is.

In a second aspect, an embodiment of the present invention provides a device configured in an electronic terminal device UE, where the UE stores a local PLMN list, where the PLMN list includes a home PLMN of the UE and other PLMNs, and PLMNs in the PLMN list correspond to registration priorities in a one-to-one correspondence manner according to a preset priority rule, and the device includes:

the abnormal message receiving module is used for receiving a message which is sent by a network side of a current cell trying to access and carries a reason causing network access abnormity;

and the cell reselection module reselects the cell containing the PLMN in the local PLMN list for re-registration according to the descending order of the registration priority of the PLMN in the local PLMN list until the registration is successful.

In one possible implementation manner, the apparatus further includes a first cell disabling module, where the first cell disabling module is configured to:

when the current cell is a shared network, before reselecting the cell containing the PLMN in the local PLMN list for re-registration, setting the cell with the same ranking as the PLMN in the current cell PLMN list as a forbidden cell so that the UE can forbid the forbidden cell in the registration process.

In a possible implementation manner, the apparatus further includes a second cell disabling module, where the second cell disabling module is configured to:

when the current cell is a non-shared network, before reselecting the cell containing the PLMN in the local PLMN list for re-registration, setting the current cell as a forbidden cell, so that the UE can be forbidden in the registration process.

In a possible implementation manner, in the local PLMN list, a PLMN that is the same as a local home PLMN of the UE is a highest registration priority, and the cell reselection module is specifically configured to:

In one possible implementation, the cell reselection module is further configured to:

and if the first cell is found, performing network access registration.

In a third aspect, an embodiment of the present invention provides a terminal device, including: at least one processor; and at least one memory communicatively coupled to the processor, wherein: the memory stores program instructions executable by the processor, the processor calling the program instructions to be able to perform the method provided by the first aspect.

In a fourth aspect, an embodiment of the present invention provides a non-transitory computer-readable storage medium storing computer instructions for causing a computer to perform the method provided in the first aspect.

It should be understood that the second to fourth aspects of the embodiment of the present invention are consistent with the technical solution of the first aspect of the embodiment of the present invention, and the beneficial effects obtained by the aspects and the corresponding possible implementation manners are similar, and are not described again.

[ description of the drawings ]

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

FIG. 1 is a schematic diagram of an application scenario provided by an embodiment of the present invention;

fig. 2 is a flowchart of a network access registration method according to an embodiment of the present invention;

fig. 3 is a flowchart of a network access registration method according to another embodiment of the present invention;

fig. 4 is a flowchart of a network access registration method according to another embodiment of the present invention;

fig. 5 is a flowchart of a method for reselecting a cell including a PLMN in a home PLMN list for re-registration according to another embodiment of the present invention;

fig. 6 is a functional block diagram of a network access registration apparatus according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 8 is a schematic diagram of a hardware structure of an electronic terminal device according to an embodiment of the present invention.

[ detailed description ] embodiments

For better understanding of the technical solutions in the present specification, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings.

It should be understood that the described embodiments are only a few embodiments of the present specification, and not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments in the present specification without any inventive step are within the scope of the present specification.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the specification. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

Fig. 1 is a schematic application scenario diagram provided in an embodiment of the present invention, and as shown in fig. 1, in a shared network scenario 11, a PLMN1 and a PLMN2 share a base station 11, and a PLMN1 and a PLMN2 use a local core network device 14 and a local core network device 15, respectively. In the unshared network scenario 12, the PLMN3 uses the base station 16 and the local core network device 17. The core network device may include a corresponding computer room and a backbone network. The mobile communication terminal 18 may access a shared network or may access an unshared network. For example, the home PLMN of the mobile communication terminal 18 is PLMN1, the home PLMNs corresponding to the base station 13 and the base station 16 are PLMN1 and PLMN3, respectively, the mobile communication terminal 18 may send the registration request information to the core network device 14 of the PLMN1 through the base station 13, and if the core network device 14 may release the system message indicating successful registration, the mobile communication terminal 18 may receive the system message indicating successful registration through the base station 13, so as to complete network access registration. Since roaming agreements allowing mutual communication may exist between different PLMNs, the mobile communication terminal 18 may also transmit registration request information to the core network device 17 of the PLMN3 through the base station 16, and perform network access registration in the same manner as described above.

In the process of searching for and accessing and registering to the PLMN by the mobile communication terminal 18, many reasons may occur that cause network access abnormality, for example, the mobile communication terminal 18 cannot search for an accessible PLMN, or the home PLMN of the mobile communication terminal 18 is inconsistent with the home PLMN of the cell to be accessed, so that the mobile communication terminal 18 cannot send the registration request message to the core network through the base station of the cell to be accessed. Based on the above-described abnormal cause, there is a probability that the mobile communication terminal 18 fails to register access to both the unshared network and the shared network. When the network access is abnormal, the mobile communication terminal 18 cannot receive the system message indicating the reason of the abnormality, and more specifically, the mobile communication terminal 18 can only receive the system message indicating the registration failure but not including the system message indicating the reason of the abnormality, and the mobile communication terminal 18 may determine that the registration failure occurs and start a timer, and continue to attempt registration in the specific access network device after the timer expires. If the registration attempts fail many times, not only the timer is started many times, but also other timers with longer time may be started, for example, when the number of times of starting the timer reaches 5 times or more, the mobile communication terminal 18 starts a T3402 timer and a T3502 timer with timeout time as long as tens of minutes, and frequent network registration failure of the terminal causes network access delay, so that the time for the terminal to perform registration is longer and the success rate is lower.

In view of the above problems, embodiments of the present invention provide a network access registration method, apparatus, terminal device and storage medium, by which, when a network access is abnormal, the mobile communication terminal 18 may receive and analyze a message carrying a cause causing the network access abnormality, and after analyzing the message causing the abnormality, the mobile communication terminal 18 may skip the operation of starting a timer, and directly perform a network reselection rapidly and accurately according to a preset registration priority, so as to prevent a network access delay caused by a frequent network registration failure, thereby improving a success rate and efficiency of the network registration.

Fig. 2 is a flowchart of a network access registration method according to an embodiment of the present invention, where the network access registration method may be applied to an electronic terminal device UE, the UE may be a mobile communication terminal having a Subscriber Identity Module (SIM) or a Universal Subscriber Identity Module (USIM), and the UE may store a local PLMN list.

In some embodiments, the local home PLMN of the UE and other PLMNs may be included in the local PLMN list. For example, the local home PLMN of the UE is PLMN1, and PLMN2 and PLMN3 may also be included in the local PLMN list. The PLMN2 and the PLMN3 may be PLMNs that the UE may register, for example, the PLMN2 and the PLMN3 may be PLMNs that have a mutual communication protocol (e.g., a roaming protocol) with a home PLMN of the UE, that is, although the home PLMN of the UE is the PLMN1, the PLMN2 and the PLMN3 may also be selected for registration. Furthermore, PLMN2 and PLMN3 may also be PLMNs that have been successfully registered by the UE in history.

In some embodiments, the local PLMN list may further include a PLMN with the same local home PLMN of the UE as a highest registration priority, and the remaining PLMNs in the PLMN list may correspond to the registration priority in a one-to-one manner according to a preset priority rule.

When the UE reselects the network, if the PLMN that the UE fails to register this time is different from the local home PLMN, in order to ensure the success rate of the next registration, other PLMNs can be reselected for registration. If the UE selects the PLMN that is the same as its home PLMN for registration, no matter whether the PLMN corresponds to a non-shared network or a shared network, the UE may perform operations such as transmission and routing of a registration request message through the access network device and the core network device that correspond to the PLMN that is the same as the home PLMN.

In some embodiments, the pre-set priority rules for the remaining PLMNs in the PLMN list may include: according to the signal intensity of the corresponding cell of the PLMN, the stronger the signal is, the higher the corresponding priority is. A PLMN may cover one or more cells, each cell corresponding to an access network device (e.g., base station). When the UE performs cell search, it may receive a cell synchronization signal sent by the cell access network device, where the strength of the cell synchronization signal depends on the signal quality and the signal strength of the cell synchronization signal. That is, the stronger the signal of the cell is, the better the signal quality and/or the stronger the signal strength of the cell synchronization signal is, so for the rest PLMNs in the PLMN list, the stronger the signal is, the higher the priority of the PLMN corresponding to the cell is.

In some embodiments, the pre-set priority rules for the remaining PLMNs in the PLMN list may include: according to the PLMN historical registration success rate, the higher the success rate is, the higher the corresponding priority is. It can be understood that, when the UE performs network reselection, selecting a PLMN with a higher history registration success rate for re-registration can greatly improve the probability of successful registration next time compared to a PLMN with a lower history registration success rate, so for the remaining PLMNs in the PLMN list, the PLMN with a higher history registration success rate has a higher priority.

As shown in fig. 2, the network access registration method includes:

step 210, receiving a message carrying a cause causing network access abnormality, sent by a network side of a current cell attempting to access.

The network side is the access network device, e.g. a base station. When the UE attempts to access the current cell, a network access registration procedure may be performed. Optionally, the UE may first determine that there is a registrable PLMN in the current cell according to the local PLMN list, for example, the home PLMN or the visited PLMN of the current cell is the same as a certain PLMN in the local PLMN list. And then the UE starts a registration process, sends the registration request message to the core network equipment through the network side, and after the registration is successful, the core network can generate a system message indicating the successful registration and transmit the system message to the UE through the network side.

Since the UE is more likely to have network access anomalies or registration failures in case of attempting to access a different PLMN than the local home PLMN. In some embodiments, the UE's local home PLMN and the home PLMN of the current cell may be different. For example, the home PLMN of the current cell may be the remaining PLMNs in the local PLMN list.

In the network access registration procedure, if a situation that a registrable PLMN does not exist, a registration request message cannot be routed to a core network device, a cell synchronization fails, and the like, which causes an abnormal network access occurs, the network side may release a Radio Resource Control (RRC) release message, and send the RRC release message to the UE. The network access abnormality may be a registration failure of the UE accessing the non-shared network or a registration failure of the UE accessing the shared network, and a PLMN corresponding to the registration failure of the UE may be the same as a local home PLMN or different from the local home PLMN.

In the protocol programming phase, it may be preset that the RRC release message includes the message carrying the cause of the network access abnormality. The abnormal message may be a cell, an air interface signaling, an abnormal field, etc. for indicating that the network access is abnormal, that is, the RRC release message may carry a cell, an air interface signaling, or an abnormal field corresponding to the abnormal message.

In some embodiments, an exception message may be added to the cause value of the RRC release message. For example, an exception field corresponding to the exception message may be added to the definition field of the cause value, so that the cause value of the RRC release message carries the exception message.

In some embodiments, if there is no cause value in the RRC release message, the exception message may be added to the RRC release message in the form of a cell or an air interface signaling.

In some embodiments, before the RRC release message is released, a message that can be received by the UE may be added, and a cell, an air interface signaling, or an exception field corresponding to the exception message is added to the message.

In some embodiments, it may also be directly preset that before the release of the RRC release message, the network side can send an exception message to the UE.

It should be noted that, after the UE receives the abnormal message in the above manner, the UE parses the abnormal message, and after the parsing is completed, the UE skips the operation of restarting the timer, and then performs the network reselection operation according to the embodiment of the present invention.

Through the mode, the abnormal message is added to the RRC release message in the form of a cell, an air interface signaling or an abnormal field in the protocol programming stage in advance, or the abnormal message is sent to the UE directly after the network access abnormality occurs in advance, so that the UE can timely and accurately receive the abnormal message containing the reason of the network access abnormality, the UE can skip the operation of restarting the timer and then execute the network reselection operation, the time required by re-registration is greatly saved, and the network registration efficiency is remarkably improved.

As shown in fig. 5, the step of re-registering in step 220 may include:

step 221, re-searching the first cell, where the home PLMN of the first cell is the same as the home PLMN of the UE.

The method includes that a cell is searched, namely UE executes cell search, when the UE executes the cell search, a broadcast message sent by a base station of a current cell is received, the broadcast message can include an available frequency point set of the cell, correspondingly, PLMN in a local PLMN list of the UE corresponds to one or more applicable frequency points, and in the one or more applicable frequency points of the UE, if at least one applicable frequency point matched with the available frequency point set of the cell exists, the UE can search and reside the cell, and select the PLMN corresponding to the cell to attempt registration.

In some embodiments, the UE may find the first cell according to the highest registration priority, and the home PLMN of the first cell is the same as the home PLMN of the UE. Exemplarily, the local home PLMN of the UE corresponds to the a network, and the applicable frequency points of the a network include: 1300. 1275, 3682, 3683, 3641, 3621, 36275, 37900, 38098, 38400, 38544, 38950, 39148, 39292, 40936; the frequency points corresponding to the available frequency point set of the cell P include: 1300. 1275, 3682, 1650, 1506 and 1524. It can be seen that the UE has an applicable frequency point that matches with the available frequency point set of the cell P: 1300. 1275 and 3682, indicating that the UE can find the cell P as the first cell according to the highest registration priority. Correspondingly, if the UE does not have a suitable frequency point matching with the available frequency point set of a certain cell, it indicates that the UE does not find the first cell.

It should be noted that, in the process of searching for a cell again, the UE may change the current location of the UE in a manner that the user moves, so as to be able to search for another cell again.

If the first cell is not found, step 222 is performed, and if the first cell is found, step 224 is performed.

Step 222, if the first cell is not found, finding a next second cell including other PLMNs in the local PLMN list according to the descending order of registration priorities of the other PLMNs in the local PLMN list. According to the foregoing, the preset priority rules of the remaining PLMNs in the PLMN list may include: according to the signal intensity of the corresponding cell of the PLMN, the stronger the signal is, the higher the corresponding priority is; or according to the PLMN historical registration success rate, the higher the success rate is, the higher the corresponding priority is. For example, after the UE cannot find the first cell, the UE may directly enter the next operation of re-finding the cell after the current location or the mobile location is found, and the UE may obtain the cell synchronization signal strength and the available frequency point set of the current cell by analyzing the synchronization signal in the broadcast message according to the received broadcast message of the next cell, so as to comprehensively determine which PLMN or PLMN covered cell is selected for registration next time according to the obtained data, for example, select a cell with better signal quality of the synchronization signal or a cell with stronger signal strength of the synchronization signal; or, the UE may preferentially select a target PLMN to be re-registered according to the PLMN history registration success rate, acquire an applicable frequency point of the target PLMN, and search for the second cell by searching for a cell available frequency point set matching the applicable frequency point.

Step 223, if the second cell is found, attempting to camp on and register, if the registration is unsuccessful, continuing to find the second cell and attempting to register for network access according to the descending order of the registration priority of other PLMNs in the local PLMN list until the registration is successful.

Continuing with the example of step 222, if the second cell is found, it indicates that there is a frequency point matching with the applicable frequency point set of the second cell in the applicable frequency points of other PLMNs in the local PLMN list, and the UE may attempt to camp and register in the second cell; if the registration is unsuccessful, selecting a PLMN with weaker cell signals than the cell with the failed registration according to the descending order of the cell signal strength, searching other second cells corresponding to the PLMN and trying network access registration until the registration is successful; or, according to the descending order of the PLMN historical registration success rate, selecting a PLMN with a lower PLMN than the historical registration success rate of the PLMN which failed in the current registration, searching for other second cells corresponding to the PLMN, and attempting network access registration until the registration is successful.

In some embodiments, if the UE does not find the second cell after performing step 223, the UE may change the location again and then search for the cell corresponding to the same PLMN as the local home PLMN with the highest registration priority again. It can be understood that if the cell satisfying the highest registration priority cannot be found, step 222 and step 223 are executed again until the registration is successful.

Generally speaking, the registration success rate of the UE in the network of the local home PLMN is the highest, and in order to ensure that the UE can register successfully in the PLMN corresponding to the highest registration priority as much as possible, for the network reselection operation, a preset condition that the UE is switched from the PLMN selected by the highest registration priority to the PLMN selected by another priority may be preset. In some embodiments, the preset condition may be that no PLMN meeting the highest registration priority is found in the target area. The target area may be a maximum location change area of the UE, for example, the target area may be a maximum active range of a user holding the UE, and if the user still cannot search for a PLMN meeting the highest registration priority in the maximum active range, the UE may switch to another PLMN selected by priority for re-registration.

Step 224, if the first cell is found, performing network access registration. It can be understood that if the first cell is found, indicating that a frequency point matching with the applicable frequency point set of the first cell exists in the applicable frequency points of the local home PLMN of the UE, the UE may attempt to camp and register in the first cell.

Because the registration success rate of the UE under the network of the local home PLMN is the highest, the UE can be successfully registered in the PLMN corresponding to the highest registration priority as much as possible. In some embodiments, if the UE fails to register in the first cell, the UE may perform a timer starting operation, and after the timer expires, the UE continues to re-register in the first cell, and if the registration still fails, reselects another PLMN in the local PLMN list for registration.

Through the mode, when network access is abnormal, the UE can perform rapid and accurate network reselection through the preset priority rule, and various factors influencing the re-registration success rate and efficiency, such as the PLMN type, the signal strength of a cell, the PLMN historical registration success rate and the like, are comprehensively considered in the priority rule, so that the re-registration success rate and efficiency can be improved.

Fig. 3 is a flowchart of a network access registration method according to another embodiment of the present invention. As shown in fig. 3, when the current cell is an unshared network, step 310 may be further performed before the cell including the PLMN in the home PLMN list is reselected for re-registration.

Step 310, when the current cell is a shared network, setting a cell with the same PLMN ranking as in the PLMN list of the current cell as a forbidden cell, so that the UE is forbidden in the registration process.

The UE may determine the network type of the current cell, for example, the UE may analyze from a broadcast message of the base station that the current cell includes several PLMNs, that is, may determine whether the current cell is covered by a network of one PLMN or a network of multiple PLMNs. If the current cell is only covered by the network of one PLMN, the current cell is a non-shared network cell; and if the current cell is covered by the networks of the PLMNs, the current cell is a shared cell.

In some embodiments, if the current cell is a shared network, the cells with the same ranking as the PLMN in the PLMN list of the current cell are set as forbidden cells. The PLMN content in the PLMN list of the current cell may be a PLMN number, for example, the number 46000 of PLMN1, the number 46001 of PLMN2, or the like. The PLMN ranking may be an arrangement order of PLMN numbers, for example, PLMN contents in the PLMN list are arranged in an order of 46000 as a first one and 46001 as a second one. In some embodiments, the same ranking may be that the first PLMN in the PLMN list is numbered the same, i.e., the home PLMNs of the two shared network cells are the same. For example, the UE obtains that the PLMN list of the current cell is PLMN1 (number 46000) and PLMN2 (number 46001), and in the process of reselecting the PLMN registration, the UE may set all cells corresponding to the first PLMN in the PLMN list being PLMN1 (number 46000) as forbidden cells.

In some embodiments, the ranking may be the same for both PLMN contents in the PLMN list and the ranking. For example, the UE obtains that the PLMN lists of the current cells are PLMN1 (number 46000) and PLMN2 (number 46001), and in the process of reselecting the PLMN registration, the UE may set all cells corresponding to the PLMN lists of PLMN1 (number 46000) and PLMN2 (number 46001) as forbidden cells.

Through the mode, before the UE reselects the PLMN for registration, the PLMN list of the current cell with the registration failure can be obtained, the cells with the same sequencing as the PLMNs in the PLMN list are set as forbidden cells, so that the similar cells cannot be searched again when the UE reselects the PLMN, the registration failure caused by the reselection of the similar cells can be prevented, the time for reselecting the PLMN by the UE can be saved, and the efficiency and the success rate of the UE re-registration can be remarkably improved.

Fig. 4 is a flowchart of a network access registration method according to another embodiment of the present invention. As shown in fig. 4, when the current cell is an unshared network, step 410 may be further performed before the cell including the PLMN in the home PLMN list is reselected for re-registration.

Step 410, when the current cell is a non-shared network, setting the current cell as a forbidden cell, so that the UE forbids the forbidden cell in a registration process.

Similar to step 310, after the network access abnormality occurs, if the current cell is the non-shared network, the current cell may be set as the forbidden cell.

It can be understood that setting the current cell as the forbidden cell can enable the UE to forbid the cell during the registration process, so as to improve the efficiency and success rate of UE re-registration. However, unlike step 310, when the current cell is a non-shared network and the current cell is covered by only one PLMN, the home PLMN of the current cell may not be set as a forbidden PLMN, so as to prevent the UE from being unable to search for a shared network cell including the home PLMN when reselecting the PLMN subsequently.

Corresponding to the foregoing network access registration method, an embodiment of the present invention provides a functional block diagram of a network access registration apparatus, where the apparatus may be disposed in an electronic terminal device UE, the UE may store a local PLMN list, the local PLMN list may include a home PLMN of the UE and other PLMNs, and PLMNs in the PLMN list may correspond to registration priorities in a one-to-one manner according to a preset priority rule, as shown in fig. 6, the apparatus may include: an abnormal message receiving module 61, a cell reselection module 62, a first cell disabling module 63 and a second cell disabling module 64.

An abnormal message receiving module 61, configured to receive a message that is sent by a network side of a current cell attempting to access and carries a reason for causing abnormal network access;

and a cell reselection module 62, configured to reselect a cell including a PLMN in the local PLMN list for re-registration according to the descending order of registration priorities of PLMNs in the local PLMN list until registration is successful.

A first cell disabling module 63, configured to, when the current cell is a shared network, set a cell with a same ranking as a PLMN in the PLMN list of the current cell as a disabled cell before reselecting a cell including a PLMN in the local PLMN list for re-registration, so that the UE disables the disabled cell in a registration process.

A second cell disabling module 64, configured to set the current cell as a disabled cell before reselecting the cell including the PLMN in the home PLMN list for re-registration when the current cell is an unshared network, so that the UE disables the disabled cell in a registration process.

Optionally, the local home PLMN of the UE may be different from the home PLMN of the current cell.

Optionally, in the local PLMN list, a PLMN that is the same as the local home PLMN of the UE is the highest registration priority, and the cell reselection module 62 is specifically configured to: re-searching a first cell, wherein the home PLMN of the first cell is the same as the local home PLMN of the UE; if the first cell cannot be searched, searching a next second cell containing other PLMNs in the local PLMN list according to the descending order of the registration priority of other PLMNs in the local PLMN list; and if the second cell is found, trying to reside and register, and if the registration is unsuccessful, continuing to find the second cell and trying to access the network for registration according to the descending order of the registration priority of other PLMNs in the local PLMN list until the registration is successful.

Optionally, the cell reselection module 62 is further configured to: and if the first cell is found, performing network access registration.

Optionally, a PLMN in the PLMN list that is the same as the local home PLMN of the UE is the highest registration priority, and the preset priority rules of the remaining PLMNs in the PLMN list may include: according to the signal intensity of the corresponding cell of the PLMN, the stronger the signal is, the higher the corresponding priority is; or according to the PLMN historical registration success rate, the higher the success rate is, the higher the corresponding priority is.

The network access registration apparatus provided in the embodiment shown in fig. 6 may be used to implement the technical solutions of the method embodiments shown in fig. 2 to fig. 5 in this specification, and the implementation principle and the technical effects may further refer to the related descriptions in the method embodiments.

Fig. 7 is a schematic structural diagram of an electronic terminal device according to an embodiment of the present invention, where the electronic terminal device 200 includes a processor 201, a memory 202, and a computer program stored in the memory 202 and capable of being executed on the processor 201, where the processor 201 implements the steps in the foregoing method embodiments when executing the program, and the electronic terminal device according to the embodiment may be used to implement the technical solution according to the foregoing method embodiment, and further reference may be made to the relevant description in the method embodiments for implementing the principle and the technical effect, which are not described herein again.

Fig. 8 is a schematic diagram of a hardware structure of an electronic terminal device according to an embodiment of the present invention, and referring to fig. 8, the electronic terminal device may include at least one processor; and at least one memory communicatively coupled to the processor, wherein: the memory stores program instructions that may be executed by the processor, and the processor invokes the program instructions to perform the method for managing display of clipboard interfaces provided by the embodiments of fig. 2-5 of the present specification.

The terminal device may be an intelligent electronic device such as a smart phone, a tablet computer, or a notebook computer, and the form of the terminal device is not limited in this embodiment.

Exemplarily, fig. 8 illustrates a schematic structure of a terminal device by taking a smart phone as an example, as shown in fig. 8, the terminal device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a Universal Serial Bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a key 190, a motor 191, an indicator 192, a camera 193, a display 194, a Subscriber Identity Module (SIM) card interface 195, and the like.

It is to be understood that the illustrated structure of the embodiment of the present invention does not specifically limit the terminal device 100. In other embodiments of the invention, terminal device 100 may include more or fewer components than shown, or some components may be combined, some components may be split, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

Processor 110 may include one or more processing units, such as: the processor 110 may include an Application Processor (AP), a modem processor, a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a controller, a video codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), etc. The different processing units may be separate devices or may be integrated into one or more processors.

The controller can generate an operation control signal according to the instruction operation code and the timing signal to complete the control of instruction fetching and instruction execution.

The processor 110 executes programs stored in the internal memory 121 to perform various functional applications and data processing, for example, implement the network access registration method provided by the embodiments of fig. 2 to 3 of the present invention.

In some embodiments, processor 110 may include one or more interfaces. The interface may include an integrated circuit (I2C) interface, an integrated circuit built-in audio (I2S) interface, a Pulse Code Modulation (PCM) interface, a universal asynchronous receiver/transmitter (UART) interface, a Mobile Industry Processor Interface (MIPI), a general-purpose input/output (GPIO) interface, a Subscriber Identity Module (SIM) interface, and/or a Universal Serial Bus (USB) interface, etc.

The charging management module 140 is configured to receive charging input from a charger.

The power management module 141 is used to connect the battery 142, the charging management module 140 and the processor 110.

The wireless communication function of the terminal device 100 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, a modem processor, a baseband processor, and the like.

The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in terminal device 100 may be used to cover a single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 may provide a solution including 2G/3G/4G/5G wireless communication applied on the terminal device 100. The mobile communication module 150 may include at least one filter, a switch, a power amplifier, a Low Noise Amplifier (LNA), and the like. The mobile communication module 150 may receive the electromagnetic wave from the antenna 1, filter, amplify, etc. the received electromagnetic wave, and transmit the electromagnetic wave to the modem processor for demodulation. The mobile communication module 150 may also amplify the signal modulated by the modem processor, and convert the signal into electromagnetic wave through the antenna 1 to radiate the electromagnetic wave. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the same device as at least some of the modules of the processor 110.

The modem processor may include a modulator and a demodulator. In some embodiments, the modem processor may be a stand-alone device. In other embodiments, the modem processor may be provided in the same device as the mobile communication module 150 or other functional modules, independent of the processor 110.

The wireless communication module 160 may provide a solution for wireless communication applied to the terminal device 100, including Wireless Local Area Networks (WLANs) (e.g., wireless fidelity (Wi-Fi) networks), bluetooth (bluetooth, BT), Global Navigation Satellite System (GNSS), Frequency Modulation (FM), Near Field Communication (NFC), Infrared (IR), and the like. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, performs frequency modulation and filtering processing on electromagnetic wave signals, and transmits the processed signals to the processor 110. The wireless communication module 160 may also receive a signal to be transmitted from the processor 110, perform frequency modulation and amplification on the signal, and convert the signal into electromagnetic waves through the antenna 2 to radiate the electromagnetic waves.

In some embodiments, the antenna 1 of the terminal device 100 is coupled to the mobile communication module 150 and the antenna 2 is coupled to the wireless communication module 160 so that the terminal device 100 can communicate with the network and other devices through wireless communication technology. The wireless communication technology may include global system for mobile communications (GSM), General Packet Radio Service (GPRS), code division multiple access (code division multiple access, CDMA), Wideband Code Division Multiple Access (WCDMA), time-division code division multiple access (time-division code division multiple access, TD-SCDMA), Long Term Evolution (LTE), LTE, BT, GNSS, WLAN, NFC, FM, and/or IR technologies, etc. The GNSS may include a Global Positioning System (GPS), a global navigation satellite system (GLONASS), a beidou navigation satellite system (BDS), a quasi-zenith satellite system (QZSS), and/or a Satellite Based Augmentation System (SBAS).

The terminal device 100 implements a display function by the GPU, the display screen 194, and the application processor. The GPU is a microprocessor for image processing, and is connected to the display screen 194 and an application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. The processor 110 may include one or more GPUs that execute program instructions to generate or alter display information.

The display screen 194 is used to display images, video, and the like.

The terminal device 100 may implement a shooting function through the ISP, the camera 193, the video codec, the GPU, the display screen 194, the application processor, and the like.

The ISP is used to process the data fed back by the camera 193.

The digital signal processor is used for processing digital signals, and can process digital image signals and other digital signals. For example, when the terminal device 100 selects a frequency point, the digital signal processor is used to perform fourier transform or the like on the frequency point energy.

Video codecs are used to compress or decompress digital video. The terminal device 100 may support one or more video codecs. In this way, the terminal device 100 can play or record video in a plurality of encoding formats, such as: moving Picture Experts Group (MPEG) 1, MPEG2, MPEG3, MPEG4, and the like.

The NPU is a neural-network (NN) computing processor that processes input information quickly by using a biological neural network structure, for example, by using a transfer mode between neurons of a human brain, and can also learn by itself continuously.

The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to extend the storage capability of the terminal device 100.

The internal memory 121 may be used to store computer-executable program code, which includes instructions.

The terminal device 100 may implement an audio function through the audio module 170, the speaker 170A, the receiver 170B, the microphone 170C, the earphone interface 170D, and the application processor.

The audio module 170 is used to convert digital audio information into an analog audio signal output and also to convert an analog audio input into a digital audio signal.

The speaker 170A, also called a "horn", is used to convert the audio electrical signal into an acoustic signal. The terminal device 100 can listen to music through the speaker 170A, or listen to a handsfree call.

The receiver 170B, also called "earpiece", is used to convert the electrical audio signal into an acoustic signal.

The microphone 170C, also referred to as a "microphone," is used to convert sound signals into electrical signals. When making a call or transmitting voice information, the user can input a voice signal to the microphone 170C by speaking the user's mouth near the microphone 170C.

The headphone interface 170D is used to connect a wired headphone.

The keys 190 include a power-on key, a volume key, and the like.

The motor 191 may generate a vibration cue.

Indicator 192 may be an indicator light that may be used to indicate a state of charge, a change in charge, or a message, missed call, notification, etc.

The SIM card interface 195 is used to connect a SIM card. The SIM card can be brought into and out of contact with the terminal device 100 by being inserted into the SIM card interface 195 or being pulled out of the SIM card interface 195. The terminal device 100 may support 1 or N SIM card interfaces, where N is a positive integer greater than 1. The SIM card interface 195 may support a Nano SIM card, a Micro SIM card, a SIM card, etc. The same SIM card interface 195 can be inserted with multiple cards at the same time. The types of the plurality of cards may be the same or different. The SIM card interface 195 may also be compatible with different types of SIM cards. The SIM card interface 195 may also be compatible with external memory cards. The terminal device 100 interacts with the network through the SIM card to implement functions such as communication and data communication. In some embodiments, the terminal device 100 employs eSIM, namely: an embedded SIM card. The eSIM card may be embedded in the terminal device 100 and cannot be separated from the terminal device 100.

Embodiments of the present invention provide a non-transitory computer-readable storage medium, which stores computer instructions, where the computer instructions cause the computer to execute the network access registration method provided in the embodiments shown in fig. 2 to fig. 3 in this specification.

The non-transitory computer readable storage medium described above may take any combination of one or more computer readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read Only Memory (ROM), an Erasable Programmable Read Only Memory (EPROM) or flash memory, an optical fiber, a portable compact disc read only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, Radio Frequency (RF), etc., or any suitable combination of the foregoing.

Computer program code for carrying out operations for aspects of the present description may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).

The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.

In the description of embodiments of the invention, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the specification. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present specification, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present description in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present description.

The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.

It should be noted that the terminal according to the embodiment of the present invention may include, but is not limited to, a Personal Computer (PC), a Personal Digital Assistant (PDA), a wireless handheld device, a tablet computer (tablet computer), a mobile phone, an MP3 player, an MP4 player, and the like.

In the several embodiments provided in this specification, it should be understood that the disclosed system, apparatus, and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions in actual implementation, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

In addition, functional units in the embodiments of the present description may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods described in the embodiments of the present disclosure. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only a preferred embodiment of the present disclosure, and should not be taken as limiting the present disclosure, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.

Claims

1. A network access registration method is applied to electronic terminal equipment (UE), the UE stores a local PLMN list, the local PLMN list comprises a local home PLMN of the UE and other PLMNs, the PLMNs in the PLMN list correspond to registration priorities in a one-to-one mode according to preset priority rules, and the method comprises the following steps:

2. The method of claim 1, wherein when the current cell is a shared network, before the reselecting the cell including the PLMN in the home PLMN list for re-registration, further comprising:

3. The method of claim 1, wherein when the current cell is an unshared network, before the reselecting the cell including the PLMN in the home PLMN list for re-registration, further comprising:

4. The method of any of claims 1-3, wherein the UE's local home PLMN is different from the home PLMN of the current cell.

5. The method of claim 4, wherein the PLMN in the local PLMN list which is the same as the local home PLMN of the UE is the highest registration priority, and wherein the reselecting the cell including the PLMN in the local PLMN list for re-registration until the registration is successful comprises:

and if the second cell is found, trying to reside and register, and if the registration is unsuccessful, continuing to find the next second cell and trying to access the network for registration according to the descending order of the registration priority of other PLMNs in the local PLMN list until the registration is successful.

6. The method of claim 5, wherein the reselecting the cell including the PLMNs in the home PLMN list for re-network access registration in an order of decreasing registration priorities of the PLMNs in the home PLMN list until registration is successful further comprises:

and if the first cell is found, performing network access registration.

7. The method according to any of claims 1-3, wherein the PLMN in the PLMN list that is the same as the local home PLMN of the UE is the highest registration priority, and the preset priority rules for the remaining PLMNs in the PLMN list include:

8. A network access registration device is arranged in an electronic terminal device (UE), the UE stores a local PLMN list, the local PLMN list comprises a UE home PLMN and other PLMNs, the PLMNs in the PLMN list correspond to registration priorities in a one-to-one mode according to a preset priority rule, and the device comprises:

9. The apparatus of claim 8, further comprising a first cell disabling module configured to:

10. The apparatus of claim 8, further comprising a second cell disabling module configured to:

11. The apparatus of any of claims 8-10, wherein a home PLMN of the UE is different from a home PLMN of the current cell.

12. The apparatus of claim 11, wherein a PLMN in the local PLMN list that is the same as a local home PLMN of the UE is a highest registration priority, and wherein the cell reselection module is specifically configured to:

13. The apparatus of claim 12, wherein the cell reselection module is further configured to:

and if the first cell is found, performing network access registration.

14. The apparatus according to any of claims 8-10, wherein the PLMN in the PLMN list that is the same as the local home PLMN of the UE is the highest registration priority, and the preset priority rules for the remaining PLMNs in the PLMN list include:

15. A terminal device, comprising:

at least one processor; and

at least one memory communicatively coupled to the processor, wherein:

the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of any of claims 1 to 7.

16. A non-transitory (non-volatile) computer readable storage medium storing computer instructions that cause a computer to perform the method of any of claims 1 to 7.