CN107889109B - Method and device for detecting network access result and computer storage medium - Google Patents

Method and device for detecting network access result and computer storage medium Download PDF

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Publication number
CN107889109B
CN107889109B CN201711248950.6A CN201711248950A CN107889109B CN 107889109 B CN107889109 B CN 107889109B CN 201711248950 A CN201711248950 A CN 201711248950A CN 107889109 B CN107889109 B CN 107889109B
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terminal
network
cell
lte
gsm
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CN107889109A (en
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曾元清
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/08—Access security
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information

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  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a method and a device for detecting a network access result and a computer storage medium, which are applied to the process that a terminal adopts a preset optimization scheme to execute cell registration, wherein the method comprises the following steps: receiving a first attachment request message sent by the terminal based on wrong USIM parameters; the first attach request message is sent by the terminal after the terminal selects a first LTE cell; sending an attach reject message to the terminal; receiving a second attach request message sent by the terminal; the second attach request message is sent by the terminal after selecting a second LTE cell; the PLMN corresponding to the second LTE cell is different from the PLMN corresponding to the first LTE cell; sending an attach accept message to the terminal; and detecting the resident state of the terminal in the second LTE cell, and determining whether the terminal is successfully accessed into the LTE network based on the detection result.

Description

Method and device for detecting network access result and computer storage medium
Technical Field
The present invention relates to network access technologies in the field of mobile communications, and in particular, to a method and an apparatus for detecting a network access result, and a computer storage medium.
Background
With the improvement of the data service demand of the user, the coverage and quality of a Long Term Evolution (LTE) network need to meet higher requirements. Meanwhile, a Global System for Mobile Communication (GSM)/Time Division Synchronous Code Division Multiple Access (TDSCDMA) network is still used, and for this reason, it is a better transition scheme for the LTE network and the TDSCDMA/GSM network to perform co-site deployment based on the original network System.
For the LTE/TDSCDMA/GSM network, the co-sited deployment scheme may share part of the network elements, resulting in a higher coupling degree of a multi-Radio Access Technology (RAT) system. In the optimization process of each RAT system, unpredictable problems are often caused to shared network elements of other RAT systems, so that the optimization process fails or the optimization time is long.
In order to solve the problem caused by the incompatibility of network deployment, various optimization means are adopted by each terminal (UE) manufacturer to improve the User experience of the network. However, since the occurrence of various abnormal situations may probabilistically cause the UE cell registration to fail, the UE is always in a no-service state, and how to effectively detect the network access result in an abnormal scenario is particularly necessary.
Disclosure of Invention
The embodiment of the invention provides a method and a device for detecting a network access result and a computer storage medium, which are used for detecting the network access result in an abnormal scene that a terminal is always in a non-service state due to the fact that the terminal attempts to register to other operator networks which do not conform to USIM configuration and is refused to access because of wrong USIM parameters of the terminal.
The method for detecting the network access result provided by the embodiment of the invention is applied to the process that the terminal adopts the preset optimization scheme to execute the cell registration, and comprises the following steps:
receiving a first attach request message sent by the terminal based on an incorrect Universal Subscriber Identity Module (USIM) parameter; the first attach request message is sent by the terminal after the terminal selects a first LTE cell;
sending an attach reject message to the terminal;
receiving a second attach request message sent by the terminal; the second attach request message is sent by the terminal after selecting a second LTE cell; a Public Land Mobile Network (PLMN) corresponding to the second LTE cell is different from a PLMN corresponding to the first LTE cell;
sending an attach accept message to the terminal;
and detecting the resident state of the terminal in the second LTE cell, and determining whether the terminal is successfully accessed into the LTE network based on the detection result.
In the embodiment of the present invention, the method further includes:
encapsulating an attachment rejection message, wherein the attachment rejection message carries a reason value of attachment rejection, and the reason value of attachment rejection is used for representing the reason of attachment rejection;
wherein the attach reject cause value in the attach reject message is used to trigger the terminal to perform an attach procedure based on the second LTE cell.
In this embodiment of the present invention, after sending the attach reject message to the terminal, the method further includes:
detecting whether the terminal continues to send a first attach request message, and detecting whether the terminal initiates a Radio Resource Control (RRC) connection request to the second LTE cell;
if the terminal continues to send the first attach request message within the first preset time length, or the terminal initiates an RRC connection request to the second LTE cell within the first preset time length, it is determined that the terminal fails to access the LTE network;
and if the terminal stops sending the first attachment request message within a first preset time length, the terminal does not initiate an RRC connection request to the second LTE cell within the first preset time length, and the terminal does not initiate the RRC connection request to the second LTE cell within a second preset time length after the first preset time length is finished, determining that the terminal cannot successfully access the LTE network.
In the embodiment of the invention, if the terminal stops sending the first attach request message within a first preset time length, and the terminal does not initiate an RRC connection request to the second LTE cell within the first preset time length, and the terminal initiates the RRC connection request to the second LTE cell within a second preset time length after the first preset time length is finished, the terminal sends an RRC connection establishment message to the terminal;
correspondingly, the receiving the second attach request message sent by the terminal includes: and after the RRC connection establishment message is sent to the terminal, receiving a second attachment request message sent by the terminal.
In the embodiment of the present invention, the determining whether the terminal successfully accesses the LTE network based on the detection result includes:
determining that the terminal fails to successfully access an LTE network if the terminal is unable to camp on the second LTE cell; and if the terminal can be resided in the second LTE cell, determining that the terminal can successfully access the LTE network.
In this embodiment of the present invention, after sending the attach accept message to the terminal, the method further includes:
deactivating the second LTE cell and activating a global system for mobile communications (GSM) cell; the PLMN corresponding to the GSM cell is the same as the PLMN corresponding to the second LTE cell, and a value of a Type Approval number (TAC) corresponding to the GSM cell is the same as a TAC value corresponding to the second LTE cell;
the behavior of the terminal is detected, and it is determined whether the terminal is capable of accessing the GSM network based on the detected behavior of the terminal.
In this embodiment of the present invention, the determining whether the terminal can become an access to a GSM network based on the detected behavior of the terminal includes:
if the terminal does not initiate an access request to the GSM cell, determining that the terminal cannot successfully access the GSM network; if the terminal initiates an access request to the GSM cell, detecting whether the terminal can reside in the GSM cell;
determining that the terminal fails to successfully access a GSM network if the terminal is unable to camp on the GSM cell; and if the terminal can reside in the GSM cell, determining that the terminal successfully accesses the GSM network.
In this embodiment of the present invention, a process of sending a first attach request message by the terminal based on an erroneous USIM parameter is triggered based on a first trigger condition, where the first trigger condition is: the signal intensity of the first LTE cell signal detected by the terminal is greater than the signal intensity of the second LTE cell signal detected by the terminal, and the signal intensity of the second LTE cell signal detected by the terminal is greater than a signal intensity threshold value.
In this embodiment of the present invention, the number of the FPLMNs in the Forbidden public land mobile network (FPLMN, Forbidden PLMN) list of the erroneous USIM parameter is 0.
In the embodiment of the present invention, the method further includes:
establishing a simulation network environment, wherein the simulation network environment at least comprises the following network structures: the system comprises an LTE network and a GSM network, wherein the system message block SIB7 of the LTE network is configured with GSM neighbor cell information, and the system message SI of the GSM network is configured with LTE neighbor cell information;
accordingly, the network interacting with the terminal is the network in the simulated network environment.
The device for detecting the network access result provided by the embodiment of the invention is applied to the process that the terminal adopts the preset optimization scheme to execute the cell registration, and comprises the following components:
a first receiving unit, configured to receive a first attach request message sent by the terminal based on an erroneous USIM parameter; the first attach request message is sent by the terminal after the terminal selects a first LTE cell;
a first sending unit, configured to send an attach reject message to the terminal;
a second receiving unit, configured to receive a second attach request message sent by the terminal; the second attach request message is sent by the terminal after selecting a second LTE cell; the PLMN corresponding to the second LTE cell is different from the PLMN corresponding to the first LTE cell;
a second sending unit, configured to send an attach accept message to the terminal;
and the determining unit is used for detecting the residence state of the terminal in the second LTE cell and determining whether the terminal successfully accesses the LTE network based on the detection result.
In the embodiment of the invention, the device also comprises a packaging unit,
the encapsulation unit is used for encapsulating an attachment rejection message, wherein the attachment rejection message carries a reason value of attachment rejection, and the reason value of attachment rejection is used for representing the reason of attachment rejection;
wherein the attach reject cause value in the attach reject message is used to trigger the terminal to perform an attach procedure based on the second LTE cell.
In this embodiment of the present invention, the first sending unit is further configured to trigger the determining unit after sending the attach reject message to the terminal;
correspondingly, the determining unit is further configured to detect whether the terminal continues to send the first attach request message and detect whether the terminal initiates an RRC connection request to the second LTE cell when triggered by the first sending unit; if the terminal continues to send the first attach request message within the first preset time length, or the terminal initiates an RRC connection request to the second LTE cell within the first preset time length, it is determined that the terminal fails to access the LTE network; and if the terminal stops sending the first attachment request message within a first preset time length, the terminal does not initiate an RRC connection request to the second LTE cell within the first preset time length, and the terminal does not initiate the RRC connection request to the second LTE cell within a second preset time length after the first preset time length is finished, determining that the terminal cannot successfully access the LTE network.
In an embodiment of the present invention, the determining unit is specifically configured to determine that the terminal fails to access the LTE network when the terminal cannot camp in the second LTE cell; when the terminal can camp on the second LTE cell, determining that the terminal can successfully access the LTE network.
In this embodiment of the present invention, the second sending unit is further configured to trigger the determining unit after sending the attach accept message to the terminal;
the determining unit is further configured to deactivate the second LTE cell and activate the GSM cell when triggered by the second sending unit; detecting the behavior of the terminal, and determining whether the terminal can be accessed into the GSM network based on the detected behavior of the terminal; wherein the content of the first and second substances,
the PLMN corresponding to the GSM cell is the same as the PLMN corresponding to the second LTE cell, and the TAC value corresponding to the GSM cell is the same as the TAC value corresponding to the second LTE cell.
In the embodiment of the present invention, the number of FPLMNs in the FPLMN list of the erroneous USIM parameter is 0.
In the embodiment of the present invention, the apparatus further includes:
the simulation unit is used for establishing a simulation network environment, and the simulation network environment at least comprises the following network structures: the system comprises an LTE network and a GSM network, wherein the SIB7 of the LTE network is configured with GSM neighbor cell information, and the SI of the GSM network is configured with LTE neighbor cell information;
accordingly, the network interacting with the terminal is the network in the simulated network environment.
Another apparatus for detecting a network access result provided in an embodiment of the present invention is applied to a process in which a terminal performs cell registration using a preset optimization scheme, and the apparatus includes: a processor and a memory for storing a computer program capable of running on the processor,
the processor is configured to execute the steps of any one of the above methods for detecting a network access result when the computer program is run.
The computer storage medium provided by the embodiment of the present invention stores thereon a computer program, and the computer program, when executed by a processor, implements the steps of any one of the above-mentioned methods for detecting a network access result.
In the technical solution of the embodiment of the present invention, when the method is applied to a process in which a terminal performs cell registration by using a preset optimization scheme, the method includes: receiving a first attachment request message sent by the terminal based on the USIM parameters of the wrong global user identification card; the first attach request message is sent by the terminal after selecting a first Long Term Evolution (LTE) cell; sending an attach reject message to the terminal; receiving a second attach request message sent by the terminal; the second attach request message is sent by the terminal after selecting a second LTE cell; a Public Land Mobile Network (PLMN) corresponding to the second LTE cell is different from a PLMN corresponding to the first LTE cell; sending an attach accept message to the terminal; and detecting the resident state of the terminal in the second LTE cell, and determining whether the terminal is successfully accessed into the LTE network based on the detection result. By adopting the technical scheme of the embodiment of the invention, the terminal adopts the preset optimization scheme to execute the cell registration process, in the process, the terminal attempts to register to other operator networks which do not conform to the USIM configuration and is refused to access due to the configuration of wrong USIM parameters, so that the terminal is always in a non-service state.
Drawings
FIG. 1 is a schematic diagram of a SIB5 displayed via a computer display screen;
FIG. 2 is a schematic diagram of a SIB7 displayed via a computer display screen;
FIG. 3 is a schematic diagram of SI displayed by a computer display screen;
fig. 4 is a flowchart illustrating a method for detecting a network access result according to an embodiment of the present invention;
FIG. 5 is a schematic illustration of the cause value displayed via the computer display screen;
fig. 6 is a first schematic structural diagram of a device for detecting an LTE network access result according to an embodiment of the present invention;
fig. 7 is a structural configuration diagram of a device for detecting an LTE network access result according to an embodiment of the present invention.
Detailed Description
So that the manner in which the features and aspects of the embodiments of the present invention can be understood in detail, a more particular description of the embodiments of the invention, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings.
In the technical scheme of the embodiment of the invention, an abnormal access scene is simulated, namely: the terminal is configured with wrong USIM parameters, so that the terminal tries to access other operator networks after being started and is rejected, and the terminal is always in a non-service state.
Aiming at the abnormal access scene, a preset optimization scheme is adopted at the terminal side to execute the cell registration process, the continuous residence time of the terminal in the cell is detected, the verification terminal can search a proper cell based on a self-recovery scheme and successfully register, and finally the validity and the reasonability of the optimization scheme adopted by the terminal are determined.
In the embodiment of the present invention, a network environment (referred to as a simulation network environment) may be constructed by a simulation platform, where the simulation network environment at least includes the following network structures: the system comprises an LTE network, a TDSCDMA network and a GSM network, wherein a system message block SIB7 of the LTE network is configured with GSM neighboring cell information, a system message SI of the GSM network is configured with the LTE neighboring cell information, and optionally, the TDSCDMA neighboring cell information can be configured in an SIB5 of the LTE network; FIG. 1 is a schematic diagram showing SIB5 displayed through a computer display screen, FIG. 2 is a schematic diagram showing SIB7 displayed through a computer display screen, and FIG. 3 is a schematic diagram showing SI displayed through a computer display screen.
Then, a cell registration process of the terminal is executed based on the constructed network environment, and main objects involved in the cell registration process of the terminal include the terminal and the network, wherein the terminal can be implemented by using a mobile phone, but not limited to, and the network can be implemented by using a simulation platform. Here, since the network is implemented by using a simulation platform, the network can stably reproduce an abnormal scene with the terminal, thereby verifying the feasibility and stability of the optimization scheme.
Based on the above simulated network environment, the following describes the technical solution of the embodiment of the present invention in detail.
Fig. 4 is a flowchart illustrating a method for detecting a network access result according to an embodiment of the present invention, where the technical solution of this embodiment is applied to a process in which a terminal performs cell registration by using a preset optimization scheme, and as shown in fig. 4, the method for detecting a network access result includes the following steps:
step 401: and receiving a first attachment request message sent by the terminal based on the USIM parameters of the wrong global user identification card.
Here, the first attach request message is transmitted after the terminal selects a first long term evolution LTE cell.
In actual application, the USIM is located in the terminal, and during implementation, parameters in the USIM can be configured according to actual needs; for example, the user profile of the USIM may be modified to enable the configuration of parameters in the USIM.
In the embodiment of the invention, the PLMN corresponding to the first LTE cell is not consistent with the USIM parameters, and it can be understood that when the USIM parameters are configured correctly, the terminal cannot be registered in the first LTE cell through an attachment process; in this embodiment, the terminal may request access to the first LTE cell due to an error in USIM parameter configuration.
Alternatively, all FPLMN values in the FPLMN list of USIM parameters of the terminal may be cleared in advance, i.e., FPLMN does not exist in the FPLMN list of USIM parameters of the terminal.
It can be understood that the FPLMN is a PLMN which is prohibited from accessing, and the FPLMN is usually added to the FPLMN list after the terminal is rejected to try to access a certain PLMN; thus, the FPLMN of the terminal may initially include the PLMN corresponding to the first LTE cell, and after all the FPLMN values in the FPLMN list of the USIM parameter are cleared, the terminal is allowed to request access to the first LTE cell.
This step may be implemented by a network, and it should be noted that the precondition for performing an LTE cell-based attach procedure between the terminal and the network is that the terminal and the network complete a Radio Resource Control (RRC) connection establishment procedure.
Specifically, the terminal may transmit an RRC connection request message to the network before the first attach request message transmitted based on the erroneous USIM parameter; when the network receives the RRC connection request message, it may send an RRC connection setup message to the terminal; thereafter, the terminal may transmit an RRC connection setup complete message to the network.
Optionally, in an implementation manner of this step, after the terminal is powered on, the network triggers the terminal to initiate a cell registration procedure with the first LTE cell; for example, by configuring the signal transmission power of the base station where the first LTE cell is located, the terminal initiates a cell registration procedure to the first LTE cell after being powered on, and further sends an RRC connection request message to the network.
Step 402: sending an attach reject message to the terminal;
it can be understood that, after receiving the attach request message, the network side may decide to send the attach request message to the terminal or send the attach reject message to the terminal according to the actual situation; if the network sends an attachment request message to the terminal, the terminal can complete cell registration through subsequent signaling interaction with the network; otherwise, if the network sends an attach reject message to the terminal, the terminal may not complete cell registration.
Here, an attach reject message may be encapsulated, where the attach reject message carries a cause value of attach reject, and the cause value of attach reject is used to represent a cause of attach reject; in the embodiment of the present invention, the cause value of the Attach rejection is not limited, and fig. 5 exemplarily illustrates one cause value of the Attach rejection, as shown in fig. 5, taking the Attach rejection message as "Attach Reject" as an example, and the cause (cause) value in the "Attach Reject" is "Tracking Area not allowed (12)", where "Tracking Area not allowed" represents that the cause of the Attach rejection is that the Tracking Area is not allowed.
Step 403: and receiving a second attachment request message sent by the terminal.
The second attach request message is sent by the terminal after selecting a second LTE cell; and the PLMN corresponding to the second LTE cell is different from the PLMN corresponding to the first LTE cell.
This step may be implemented by the network, and it should be noted that the precondition for performing the attach procedure between the terminal and the network is that the terminal and the network complete the RRC connection establishment procedure.
Specifically, the terminal may send an RRC connection request message to the network before sending the second attach request; when the network receives the RRC connection request message, it may send an RRC connection setup message to the terminal; thereafter, the terminal may transmit an RRC connection setup complete message to the network.
Step 404: and sending an attachment acceptance message to the terminal.
This step can be implemented by a network; in an optional implementation manner, the network establishes a default Evolved Packet System (EPS) bearer for the terminal, where the EPS bearer serves to: various data services such as IP Multimedia Subsystem (IMS) voice services, internet access services, etc. may be used. Here, establishing the default EPS bearer is one step of completing the attach procedure.
Step 405: and detecting the resident state of the terminal in the second LTE cell, and determining whether the terminal is successfully accessed into the LTE network based on the detection result.
Here, the camping state of the terminal in the second LTE cell may be determined by detecting a duration of the camping time of the terminal in the second LTE cell.
Specifically, if the duration of the terminal in the second LTE cell does not exceed the first set threshold, it indicates that the terminal cannot camp in the second LTE cell, and it is determined that the terminal fails to access the LTE network at this time.
If the duration of the terminal in the second LTE cell exceeds a first set threshold, the terminal can be resided in the second LTE cell, and at the moment, the terminal is determined to be capable of successfully accessing the LTE network.
In practical implementation, the continuous residence time of the terminal in the second LTE cell may be detected at the base station to which the second LTE cell belongs.
Here, the first set threshold may be set according to actual needs,
optionally, after the network sends the attach reject message to the terminal, it may also be detected whether the terminal continues to send an attach request message for requesting access to the first LTE cell, and whether the terminal initiates an RRC connection request to the second LTE cell;
that is, after the terminal receives the attach reject message, the terminal is in a no-service state; the terminal may choose to continue sending the attach request message to the first LTE cell, may choose to send an RRC connection request to another cell, or may choose to remain in a no-service state.
In an optional example, if the terminal continues to send the first attach request message within the first preset time duration, or the terminal initiates an RRC connection request to the second LTE cell within the first preset time duration, it is determined that the terminal fails to access the LTE network.
And if the terminal stops sending the attachment request message for requesting to access the first LTE cell within the first preset time, the terminal does not initiate an RRC connection request to the second LTE cell within the first preset time, and the terminal does not initiate the RRC connection request to the second LTE cell within the second preset time after the first preset time is finished, the terminal is determined to be successfully accessed to the LTE network.
Optionally, when the terminal stops sending the first attach request message within a first preset time, and the terminal does not initiate an RRC connection request to the second LTE cell within the first preset time, and the terminal initiates an RRC connection request to the second LTE cell within a second preset time when the first preset time ends, step 403 is executed.
Here, the first preset time period and the second preset time period may be preset according to actual requirements.
In the embodiment of the present invention, for the process of sending the first attach request message based on the wrong USIM parameter, an optional implementation is that after the terminal is powered on, the network triggers the terminal to initiate a cell registration process to the first LTE cell; for example, the signal transmission power of the base station where the first LTE cell is located and the signal transmission power of the base station where the second LTE cell is located may be configured, so that the signal strength of the first LTE cell detected by the terminal is greater than the signal strength of the second LTE cell detected by the terminal, and the signal strength of the second LTE cell detected by the terminal is greater than the signal strength threshold; here, the signal strength threshold represents a minimum value of signal strength required when the terminal requests to access the cell, and the signal strength threshold may be preset according to actual requirements.
Further, after the network sends the attach accept message to the terminal, the second LTE cell may be deactivated and the GSM cell may be activated; that is, the second LTE cell is controlled to be in an inactive state, and the GSM cell is controlled to be in an active state, where the cell in the active state allows the terminal to request access, and the cell in the inactive state does not allow the terminal to request access.
Here, a PLMN corresponding to the GSM cell is the same as a PLMN corresponding to the second LTE cell, and a TAC value corresponding to the GSM cell is the same as a TAC value corresponding to the second LTE cell.
After deactivating the second LTE cell and activating the GSM cell, the behavior of the terminal may be detected and it may be determined whether the terminal is capable of accessing the GSM network based on the detected behavior of the terminal
Illustratively, if the terminal does not initiate an access request to the GSM cell, determining that the terminal has failed to access a GSM network; and if the terminal initiates an access request to the GSM cell, detecting whether the terminal can reside in the GSM cell.
In an optional embodiment, if the terminal does not initiate an access request to the GSM cell within a third preset time period, it is determined that the terminal fails to access the GSM network; and if the terminal initiates an access request to the GSM cell within a third preset time length, detecting whether the terminal can reside in the GSM cell.
Determining that the terminal fails to successfully access a GSM network if the terminal is unable to camp on the GSM cell; and if the terminal can reside in the GSM cell, determining that the terminal successfully accesses the GSM network.
In practical application, if the duration of the terminal in the GSM cell does not exceed the second set threshold, it indicates that the terminal cannot camp in the GSM cell; if the continuous residence time of the terminal in the GSM cell exceeds a second set threshold, the terminal can be resided in the GSM cell.
Here, the third preset time period and the second set threshold may be set according to actual requirements.
In practical application, the first preset time length, the second preset time length and the third preset time length can be realized by setting a timer; specifically, a first timer is set, and before the first timer is overtime, whether a terminal sends a first attach request message is detected, or whether the terminal initiates an RRC connection request to the second LTE cell is detected; after the first timer is overtime, starting a second timer, and before the second timer is overtime, detecting whether the terminal initiates an RRC connection request to the second LTE cell; after a second LTE cell is deactivated and a GSM cell is activated, starting a third timer, and detecting whether a terminal initiates an access request to the GSM cell before the third timer is overtime; the purpose of setting the timer is to avoid detecting too long.
Wherein, the duration of the timer can be set according to the requirement.
Optionally, the network interacting with the terminal may be a network in the emulated network environment, for example, the GSM network is a GSM network in the emulated network environment, and the LTE network is an LTE network in the emulated network environment.
By adopting the technical scheme of the embodiment of the invention, the terminal adopts the preset optimization scheme to execute the cell registration process, in the process, the terminal attempts to register to other operator networks which do not conform to the USIM configuration and is refused to access due to the configuration of wrong USIM parameters, so that the terminal is always in a non-service state.
The present application is described in further detail below with reference to an application example.
In the embodiment of the application, a simulation network environment can be constructed; the simulation network environment comprises two Time Division long term evolution (TD-LTE) cells, a TDSCDMA cell and a GSM cell; the two TD-LTE cells are respectively marked as a cell0 cell and a cell1 cell; the cell0 cell, the TDSCDMA cell and the GSM cell are all configured with the same PLMN and the same TAC code (value); the cell1 cell is configured with a different PLMN than the cell0 cell for emulating another operator cell that does not conform to the USIM configuration.
The method for detecting the network access result of the application embodiment comprises the following steps:
step A1: in the simulated network environment, the signal transmission power of the base station to which the cell1 belongs is configured to be greater than the signal transmission power of the base station to which the cell0 belongs, and the signal strength of the cell1 received by the terminal and the signal strength of the cell0 received by the terminal are both greater than a signal strength threshold TH 1.
Here, the purpose of configuring that the signal transmission power of the base station to which the cell1 belongs is greater than the signal transmission power of the base station to which the cell0 belongs is to trigger the UE to perform cell registration.
Step A2: and triggering the terminal to start to register to the cell1, and completing an RRC connection establishment process after a network side of the simulated network environment receives an RRC connection request corresponding to the cell1 sent by the terminal.
It can be seen that, since the signal strength of the cell1 received by the terminal and the signal strength of the cell0 received by the terminal are both greater than the signal strength threshold TH1, and the terminal configures wrong USIM information, the terminal attempts to register to the cell1 cell after being powered on.
Step A3: after receiving the subsequent attach request message to the cell1, the network simulating the network environment simulates an abnormal rejection condition and sends an attach rejection message to the terminal, where the attach rejection message may carry a cause value of attach rejection.
Illustratively, the cause value of attach rejection may be Tracking area not allowed.
Step A4: monitoring the behavior of the terminal by using the simulated network environment, and executing the step A5 when the terminal stops initiating the attach request to the cell1 within the first preset time period and the terminal does not initiate the RRC connection request to the cell0 within the first preset time period.
It should be noted that when the terminal initiates an attach request to the cell1 within the first preset duration, it may be determined that the terminal cannot successfully access the LTE network, which indicates that the optimization scheme fails; when the terminal stops initiating the attach request to the cell1 within the first preset time period and the terminal also initiates the RRC connection request to the cell0 within the first preset time period, it is determined that the terminal cannot successfully access the LTE network, which indicates that the optimization scheme fails.
Step A5: and establishing a default EPS bearer for the terminal by utilizing the network of the simulated network environment, and verifying that the terminal can stably reside in the cell0 cell.
Specifically, the network side utilizing the simulated network environment sends an attach accept message to the terminal, and then determines whether the terminal can stably reside in the cell0 by detecting the duration of the terminal residing in the cell 0.
If the duration of the terminal in the cell0 does not exceed the first set threshold, it indicates that the terminal cannot stably camp in the cell0, and at this time, it may be determined that the terminal fails to successfully access the LTE network.
If the duration of the terminal staying in the cell0 exceeds the first set threshold, it is indicated that the terminal can stably stay in the cell0, and at this time, it can be determined that the terminal can successfully access the LTE network.
Step A6: the network utilizing the emulated network environment deactivates the cell0 cell and activates the GSM cell.
In practical application, the simulated network environment may be used to control the cell0 to be in the inactive state and control the GSM cell to be in the active state.
Step A7: detecting whether the terminal can initiate an access request to a GSM cell or not by utilizing the simulation network environment;
if the terminal can not initiate the RRC connection request to the GSM cell, the terminal can not successfully access the GSM network, and the optimization scheme fails; if the terminal can initiate an access request to the GSM cell, the terminal can send corresponding resources to the terminal by using the simulated network environment, and then, whether the terminal can stably reside in the GSM cell is verified.
If the terminal can stably reside in the GSM cell, the terminal can successfully access the GSM network, and the optimization scheme is successful; otherwise, the terminal cannot be successfully accessed to the GSM network, and the optimization scheme fails.
For example, whether the terminal can stably camp in the GSM cell may be determined by detecting the duration of the terminal in the GSM cell; when the continuous residence time of the terminal in the GSM cell exceeds a second set threshold, the terminal can reside in the GSM cell; otherwise, the terminal cannot camp in the GSM cell.
Fig. 6 is a schematic structural composition diagram of a device for detecting a network access result according to an embodiment of the present invention, where the device of this embodiment is applied to a process in which a terminal performs cell registration by using a preset optimization scheme, and as shown in fig. 6, the device includes:
a first receiving unit 601, configured to receive a first attach request message sent by the terminal based on an erroneous USIM parameter; the first attach request message is sent by the terminal after selecting a first Long Term Evolution (LTE) cell;
a first sending unit 602, configured to send an attach reject message to the terminal;
a second receiving unit 603, configured to receive a second attach request message sent by the terminal; the second attach request message is sent by the terminal after selecting a second LTE cell; the PLMN corresponding to the second LTE cell is different from the PLMN corresponding to the first LTE cell;
a second sending unit 604, configured to send an attach accept message to the terminal;
a determining unit 605, configured to detect a camping state of the terminal in the second LTE cell, and determine whether the terminal successfully accesses the LTE network based on a detection result.
Optionally, the apparatus further comprises an encapsulation unit 606,
the encapsulating unit 606 is configured to encapsulate an attach rejection message, where the attach rejection message carries a cause value of attach rejection, and the cause value of attach rejection is used to represent a cause of attach rejection;
wherein the attach reject cause value in the attach reject message is used to trigger the terminal to perform an attach procedure based on the second LTE cell.
Optionally, the first sending unit 602 is further configured to trigger the determining unit after sending the attach reject message to the terminal;
correspondingly, the determining unit 605 is further configured to detect whether the terminal continues to send the first attach request message and detect whether the terminal initiates an RRC connection request to the second LTE cell when triggered by the first sending unit; if the terminal continues to send the first attach request message within the first preset time length, or the terminal initiates an RRC connection request to the second LTE cell within the first preset time length, it is determined that the terminal fails to access the LTE network; and if the terminal stops sending the first attachment request message within a first preset time length, the terminal does not initiate an RRC connection request to the second LTE cell within the first preset time length, and the terminal does not initiate the RRC connection request to the second LTE cell within a second preset time length after the first preset time length is finished, determining that the terminal cannot successfully access the LTE network.
Optionally, the determining unit 605 is further configured to detect whether the terminal continues to send the first attach request message and detect whether the terminal initiates an RRC connection request to the second LTE cell when triggered by the first sending unit; if the terminal stops sending the first attach request message within a first preset time length, the terminal does not initiate an RRC connection request to the second LTE cell within the first preset time length, and the terminal initiates an RRC connection request to the second LTE cell within a second preset time length after the first preset time length is finished, and an RRC connection establishment message is sent to the terminal;
correspondingly, the second receiving unit 603 is configured to receive a second attach request message sent by the terminal after sending the RRC connection setup message to the terminal.
Optionally, the determining unit 605 is specifically configured to determine that the terminal fails to successfully access the LTE network when the terminal cannot camp on the second LTE cell; when the terminal can camp on the second LTE cell, determining that the terminal can successfully access the LTE network.
Optionally, the second sending unit 604 is further configured to trigger the determining unit after sending the attach accept message to the terminal;
the determining unit 605 is further configured to deactivate the second LTE cell and activate the GSM cell when triggered by the second sending unit; detecting the behavior of the terminal, and determining whether the terminal can be accessed into the GSM network based on the detected behavior of the terminal; wherein the content of the first and second substances,
the PLMN corresponding to the GSM cell is the same as the PLMN corresponding to the second LTE cell, and the TAC value corresponding to the GSM cell is the same as the TAC value corresponding to the second LTE cell.
Optionally, the determining unit 605 is specifically configured to determine that the terminal fails to successfully access the GSM network when the terminal does not initiate an access request to the GSM cell; when the terminal initiates an access request to the GSM cell, detecting whether the terminal can reside in the GSM cell; determining that the terminal fails to successfully access a GSM network if the terminal is unable to camp on the GSM cell; and if the terminal can reside in the GSM cell, determining that the terminal successfully accesses the GSM network.
Optionally, the process that the terminal sends the first attach request message based on the wrong USIM parameters is triggered based on a first trigger condition, where the first trigger condition is: the signal intensity of the first LTE cell signal detected by the terminal is greater than the signal intensity of the second LTE cell signal detected by the terminal, and the signal intensity of the second LTE cell signal detected by the terminal is greater than a signal intensity threshold value.
Optionally, the number of FPLMNs in the forbidden public land mobile network FPLMN list of the erroneous USIM parameter is 0.
Optionally, the apparatus further comprises:
a simulation unit 607, configured to establish a simulated network environment, where the simulated network environment at least includes the following network structures: the system comprises an LTE network and a GSM network, wherein the system message block SIB7 of the LTE network is configured with GSM neighbor cell information, and the system message SI of the GSM network is configured with LTE neighbor cell information;
accordingly, the network interacting with the terminal is the network in the simulated network environment.
It should be noted that: in the above embodiment, when the network access result detection device detects the network access result, only the division of the program modules is used as an example, and in practical applications, the processing distribution may be completed by different program modules according to needs, that is, the internal structure of the device is divided into different program modules, so as to complete all or part of the processing described above. In addition, the network access result detection apparatus and the network access result detection method provided in the foregoing embodiments belong to the same concept, and specific implementation processes thereof are described in detail in the method embodiments and are not described herein again.
Based on the hardware implementation of each unit in the detection apparatus for network access result, in order to implement the detection apparatus for network access result provided by the embodiment of the present invention, as shown in fig. 7, the apparatus 70 further includes: a processor 71 and a memory 72 for storing computer programs capable of running on the processor,
wherein, when the processor 71 is configured to run the computer program, the following steps are executed:
receiving a first attachment request message sent by the terminal based on wrong USIM parameters; the first attach request message is sent by the terminal after the terminal selects a first LTE cell;
sending an attach reject message to the terminal;
receiving a second attach request message sent by the terminal; the second attach request message is sent by the terminal after selecting a second LTE cell; the PLMN corresponding to the second LTE cell is different from the PLMN corresponding to the first LTE cell;
sending an attach accept message to the terminal;
and detecting the resident state of the terminal in the second LTE cell, and determining whether the terminal is successfully accessed into the LTE network based on the detection result.
In one embodiment, the processor 71 further performs the following steps:
encapsulating an attachment rejection message, wherein the attachment rejection message carries a reason value of attachment rejection, and the reason value of attachment rejection is used for representing the reason of attachment rejection;
wherein the attach reject cause value in the attach reject message is used to trigger the terminal to perform an attach procedure based on the second LTE cell.
In one embodiment, the processor 71 further performs the following steps:
detecting whether the terminal continues to send a first attach request message and whether the terminal initiates an RRC connection request to the second LTE cell;
if the terminal continues to send the first attach request message within the first preset time length, or the terminal initiates an RRC connection request to the second LTE cell within the first preset time length, it is determined that the terminal fails to access the LTE network;
and if the terminal stops sending the first attachment request message within a first preset time length, the terminal does not initiate an RRC connection request to the second LTE cell within the first preset time length, and the terminal does not initiate the RRC connection request to the second LTE cell within a second preset time length after the first preset time length is finished, determining that the terminal cannot successfully access the LTE network.
In one embodiment, the processor 71 further performs the following steps:
if the terminal stops sending the first attach request message within a first preset time length, the terminal does not initiate an RRC connection request to the second LTE cell within the first preset time length, and the terminal initiates an RRC connection request to the second LTE cell within a second preset time length after the first preset time length is finished, and an RRC connection establishment message is sent to the terminal;
and after the RRC connection establishment message is sent to the terminal, receiving a second attachment request message sent by the terminal.
In one embodiment, the processor 71 further performs the following steps:
determining that the terminal fails to successfully access an LTE network if the terminal is unable to camp on the second LTE cell; and if the terminal can be resided in the second LTE cell, determining that the terminal can successfully access the LTE network.
In one embodiment, the processor 71 further performs the following steps:
deactivating the second LTE cell and activating a GSM cell after sending an attach accept message to the terminal; the PLMN corresponding to the GSM cell is the same as the PLMN corresponding to the second LTE cell, and the TAC value corresponding to the GSM cell is the same as the TAC value corresponding to the second LTE cell;
the behavior of the terminal is detected, and it is determined whether the terminal is capable of accessing the GSM network based on the detected behavior of the terminal.
In one embodiment, the processor 71 further performs the following steps:
if the terminal does not initiate an access request to the GSM cell, determining that the terminal cannot successfully access the GSM network; if the terminal initiates an access request to the GSM cell, detecting whether the terminal can reside in the GSM cell;
determining that the terminal fails to successfully access a GSM network if the terminal is unable to camp on the GSM cell; and if the terminal can reside in the GSM cell, determining that the terminal successfully accesses the GSM network.
In one embodiment, the process of the terminal sending the first attach request message based on the wrong USIM parameters is triggered based on a first trigger condition: the signal intensity of the first LTE cell signal detected by the terminal is greater than the signal intensity of the second LTE cell signal detected by the terminal, and the signal intensity of the second LTE cell signal detected by the terminal is greater than a signal intensity threshold value.
In an embodiment, the number of FPLMNs in the forbidden public land mobile network FPLMN list of the erroneous USIM parameter is 0.
In one embodiment, the processor 71 further performs the following steps:
establishing a simulation network environment, wherein the simulation network environment at least comprises the following network structures: the system comprises an LTE network and a GSM network, wherein the SIB7 of the LTE network is configured with GSM neighbor cell information, and the SI of the GSM network is configured with LTE neighbor cell information;
accordingly, the network interacting with the terminal is the network in the simulated network environment.
In practice, of course, the various components of the device 70 are coupled together by a bus system 73, as shown in FIG. 7. It will be appreciated that the bus system 73 is used to enable communications among the components. The bus system 73 includes a power bus, a control bus, and a status signal bus in addition to the data bus. For clarity of illustration, however, the various buses are labeled as bus system 73 in fig. 7.
In an exemplary embodiment, the embodiment of the present invention further provides a computer storage medium, which is a computer readable storage medium, for example, the memory 72 including a computer program, which is executable by the processor 71 of the LTE network access result detecting apparatus 70 to complete the steps of the foregoing method. The computer-readable storage medium may be a magnetic random access Memory (FRAM), a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM), among other memories.
The technical schemes described in the embodiments of the present invention can be combined arbitrarily without conflict.
In the embodiments provided in the present invention, it should be understood that the disclosed method and intelligent device may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one second processing unit, or each unit may be separately regarded as one unit, or two or more units may be 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 above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.

Claims (12)

1. The method for detecting the network access result is applied to the process that the terminal executes the cell registration by adopting a preset optimization scheme, and comprises the following steps:
establishing a simulation network environment, wherein the simulation network environment at least comprises the following network structures: the system comprises an LTE network and a GSM network, wherein the system message block SIB7 of the LTE network is configured with GSM neighbor cell information, and the system message SI of the GSM network is configured with LTE neighbor cell information; correspondingly, the network interacting with the terminal is the network in the simulation network environment;
receiving a first attachment request message sent by the terminal based on the USIM parameters of the wrong global user identification card; the first attach request message is sent by the terminal after selecting a first Long Term Evolution (LTE) cell;
sending an attach reject message to the terminal;
receiving a second attach request message sent by the terminal; the second attach request message is sent by the terminal after selecting a second LTE cell; a Public Land Mobile Network (PLMN) corresponding to the second LTE cell is different from a PLMN corresponding to the first LTE cell;
sending an attach accept message to the terminal;
and detecting the resident state of the terminal in the second LTE cell, and determining whether the terminal is successfully accessed into the LTE network based on the detection result.
2. The method of claim 1, further comprising:
encapsulating an attachment rejection message, wherein the attachment rejection message carries a reason value of attachment rejection, and the reason value of attachment rejection is used for representing the reason of attachment rejection;
wherein the attach reject cause value in the attach reject message is used to trigger the terminal to perform an attach procedure based on the second LTE cell.
3. The method of claim 1, wherein after sending the attach reject message to the terminal, the method further comprises:
detecting whether the terminal continues to send a first attach request message and whether the terminal initiates a Radio Resource Control (RRC) connection request to the second LTE cell;
if the terminal continues to send the first attach request message within the first preset time length, or the terminal initiates an RRC connection request to the second LTE cell within the first preset time length, it is determined that the terminal fails to access the LTE network;
and if the terminal stops sending the first attachment request message within a first preset time length, the terminal does not initiate an RRC connection request to the second LTE cell within the first preset time length, and the terminal does not initiate the RRC connection request to the second LTE cell within a second preset time length after the first preset time length is finished, determining that the terminal cannot successfully access the LTE network.
4. The method of claim 3, further comprising: if the terminal stops sending the first attach request message within a first preset time length, the terminal does not initiate an RRC connection request to the second LTE cell within the first preset time length, and the terminal initiates an RRC connection request to the second LTE cell within a second preset time length after the first preset time length is finished, and an RRC connection establishment message is sent to the terminal;
correspondingly, the receiving the second attach request message sent by the terminal includes: and after the RRC connection establishment message is sent to the terminal, receiving a second attachment request message sent by the terminal.
5. The method of claim 1, wherein the determining whether the terminal successfully accesses an LTE network based on the detection result comprises:
determining that the terminal fails to successfully access an LTE network if the terminal is unable to camp on the second LTE cell; and if the terminal can be resided in the second LTE cell, determining that the terminal can successfully access the LTE network.
6. The method of claim 1, wherein after sending the attach accept message to the terminal, the method further comprises:
deactivating the second LTE cell and activating a global system for mobile communications (GSM) cell; the PLMN corresponding to the GSM cell is the same as the PLMN corresponding to the second LTE cell, and the TAC value of the model approval number corresponding to the GSM cell is the same as the TAC value corresponding to the second LTE cell;
the behavior of the terminal is detected, and whether the terminal can successfully access the GSM network is determined based on the detected behavior of the terminal.
7. The method of claim 6, wherein determining whether the terminal can successfully access the GSM network based on the detected behavior of the terminal comprises:
if the terminal does not initiate an access request to the GSM cell, determining that the terminal cannot successfully access the GSM network; if the terminal initiates an access request to the GSM cell, detecting whether the terminal can reside in the GSM cell;
determining that the terminal fails to successfully access a GSM network if the terminal is unable to camp on the GSM cell; and if the terminal can reside in the GSM cell, determining that the terminal successfully accesses the GSM network.
8. The method according to claim 1, wherein the process of the terminal sending the first attach request message based on the wrong USIM parameters is triggered based on a first trigger condition: the signal intensity of the first LTE cell signal detected by the terminal is greater than the signal intensity of the second LTE cell signal detected by the terminal, and the signal intensity of the second LTE cell signal detected by the terminal is greater than a signal intensity threshold value.
9. The method of claim 1, wherein the number of FPLMNs in the forbidden public land mobile network FPLMN list of the erroneous USIM parameter is 0.
10. The device for detecting the network access result is applied to the process that the terminal executes the cell registration by adopting a preset optimization scheme, and comprises the following components:
a first receiving unit, configured to receive a first attach request message sent by the terminal based on an erroneous universal subscriber identity card USIM parameter; the first attach request message is sent by the terminal after selecting a first Long Term Evolution (LTE) cell;
the simulation unit is used for establishing a simulation network environment, and the simulation network environment at least comprises the following network structures: the system comprises an LTE network and a GSM network, wherein the system message block SIB7 of the LTE network is configured with GSM neighbor cell information, and the system message SI of the GSM network is configured with LTE neighbor cell information; correspondingly, the network interacting with the terminal is the network in the simulation network environment;
a first sending unit, configured to send an attach reject message to the terminal;
a second receiving unit, configured to receive a second attach request message sent by the terminal; the second attach request message is sent by the terminal after selecting a second LTE cell; a Public Land Mobile Network (PLMN) corresponding to the second LTE cell is different from a PLMN corresponding to the first LTE cell;
a second sending unit, configured to send an attach accept message to the terminal;
and the determining unit is used for detecting the residence state of the terminal in the second LTE cell and determining whether the terminal successfully accesses the LTE network based on the detection result.
11. The device for detecting the network access result is applied to the process that the terminal executes the cell registration by adopting a preset optimization scheme, and comprises the following components: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is adapted to perform the steps of the method of any one of claims 1 to 9 when running the computer program.
12. Computer storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 9.
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