CN107948995B - Method and device for detecting LTE network access result and computer storage medium - Google Patents
Method and device for detecting LTE network access result and computer storage medium Download PDFInfo
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- CN107948995B CN107948995B CN201711240616.6A CN201711240616A CN107948995B CN 107948995 B CN107948995 B CN 107948995B CN 201711240616 A CN201711240616 A CN 201711240616A CN 107948995 B CN107948995 B CN 107948995B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
Abstract
The invention discloses a method and a device for detecting an LTE network access result and a computer storage medium, which are applied to the process that a terminal adopts a preset optimization scheme to execute the LTE network access, and the method comprises the following steps: receiving a first attachment request message sent by the terminal based on a TAC of a first LTE cell; determining that no corresponding cell exists in a tracking area corresponding to the TAC of the first LTE cell, and sending an attachment rejection message to the terminal; receiving a second attachment request message sent by the terminal based on a second LTE cell TAC, and sending an attachment success message to the terminal; the TAC of the second LTE cell is different from the TAC of the first LTE cell; 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
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 Long Term Evolution (LTE) 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 to fail to access the LTE network, it is necessary to effectively detect the network access result in an abnormal scenario.
Disclosure of Invention
The embodiment of the invention provides a method and a device for detecting an LTE network access result and a computer storage medium, which can effectively detect the network access result in an abnormal scene.
The embodiment of the invention provides a method for detecting a network access result, which is applied to a process that a terminal executes LTE network access by adopting a preset optimization scheme, and comprises the following steps:
receiving a first attach request message sent by the terminal based on a Tracking Area Code (TAC) of a first LTE cell;
determining that no corresponding cell exists in a tracking area corresponding to the TAC of the first LTE cell, and sending an attachment rejection message to the terminal;
receiving a second attachment request message sent by the terminal based on a second LTE cell TAC, and sending an attachment success message to the terminal; the TAC of the second LTE cell is different from the TAC of the first LTE cell;
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 above scheme, the method further comprises:
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 the above scheme, the receiving a second attach request message sent by the terminal based on a second LTE cell TAC and sending an attach success message to the terminal includes:
after receiving a second attachment request message sent by the terminal, authenticating the terminal to obtain an authentication success result;
establishing a default Evolved Packet System (EPS) bearer for the terminal to complete an attachment process;
and sending an attachment success message to the terminal.
In the above scheme, the method further comprises:
after sending an attachment rejection message to the terminal, judging whether a second attachment request message sent by the terminal is received within a preset time length;
and if a second attach request message sent by the terminal is received within a preset time length, sending an attach success message to the terminal.
In the foregoing scheme, the determining whether the second attach request message sent by the terminal is received within a preset time includes:
detecting whether the terminal initiates an access request to the first LTE cell or the first GSM cell within a first preset time length; the TAC of the first GSM cell is the same as the TAC of the first LTE cell;
and when detecting that the access request to the first LTE cell or the GSM cell is not initiated within a first preset time length, judging whether the terminal receives a second attachment request message sent by the terminal within a second preset time length.
In the foregoing solution, the determining whether the terminal successfully accesses the LTE network based on the detection result includes:
when detecting that the terminal can camp on the second LTE cell, determining that the terminal successfully accesses an LTE network.
In the foregoing scheme, the detecting that the terminal can camp on the second LTE cell includes:
detecting that the terminal is able to camp on the second LTE cell when the transmit power of the second GSM cell is higher than the transmit power of the second LTE cell; the TAC of the second GSM cell is the same as the TAC of the second LTE cell.
In the above scheme, the method further comprises:
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 GSM neighbor cell Information is configured in a System Information Block (SIB, System Information Block)7 of the LTE network, and the LTE neighbor cell Information is configured in a System Information Block (SI, System Information) of the GSM network;
accordingly, the network interacting with the terminal is the network in the simulated network environment.
The embodiment of the invention also provides a device for detecting the LTE network access result, which is applied to the process that a terminal adopts a preset optimization scheme to execute the LTE network access, and the device comprises:
the first access processing unit is used for receiving a first attachment request message sent by the terminal based on a tracking area code TAC of a first LTE cell; determining that no corresponding cell exists in a tracking area corresponding to the TAC of the first LTE cell, and sending an attachment rejection message to the terminal;
the second access processing unit is used for receiving a second attachment request message sent by the terminal based on a second LTE cell TAC and sending an attachment success message to the terminal; the TAC of the second LTE cell is different from the TAC of the first LTE cell;
and the detection unit is used for determining whether the terminal is successfully accessed to the LTE network or not based on the detection result when the terminal is in the resident state of the second LTE cell.
In the above scheme, the first access processing unit is further 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.
In the above scheme, the detecting unit is further configured to determine whether a second attach request message sent by the terminal is received within a preset time after sending an attach reject message to the terminal;
and if a second attachment request message sent by the terminal is received within a preset time length, triggering the second access processing unit to send an attachment success message to the terminal.
In the foregoing solution, the detecting unit is specifically configured to: when detecting that the terminal can camp on the second LTE cell, determining that the terminal successfully accesses an LTE network.
In the above scheme, the apparatus further comprises:
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.
The embodiment of the invention also provides a device for detecting an LTE network access result, which is applied to a process that a terminal executes LTE network access by adopting a preset optimization scheme, and the device comprises: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is configured to perform the steps of any of the above methods when executing the computer program.
Embodiments of the present invention further provide a computer storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of any one of the above methods.
In the technical scheme of the embodiment of the invention, a terminal receives a first attachment request message sent by the terminal based on a TAC (cell access control) of a first LTE cell in the process of executing LTE network access by adopting a preset optimization scheme; determining, and sending an attachment rejection message to the terminal; receiving a second attachment request message sent by the terminal based on a second LTE cell TAC, and sending an attachment success message to the terminal; the TAC of the second LTE cell is different from the TAC of the first LTE cell; by adopting the scheme provided by the embodiment of the invention, the residing state of the terminal in the second LTE cell with different TACs with the first LTE cell can be detected under the scene that the network refuses the terminal to access the LTE network corresponding to the first LTE cell and prohibits the access to all LTE cells in the tracking cell to which the first LTE cell belongs, so that whether the terminal successfully accesses the LTE network is determined, and the validity and rationality of the optimization scheme adopted by the terminal are finally determined.
Drawings
Fig. 1 is a flowchart of a method for detecting an LTE network access result according to an embodiment of the present invention;
FIG. 2A is a diagram illustrating an embodiment of the present invention displaying SIB7 through a computer display screen;
FIG. 2B is a diagram illustrating an application of the present invention displaying SI via a computer display screen;
FIG. 3 is a flowchart of a method for detecting a network access result according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a cause value displayed by a computer display screen according to an embodiment of the present invention;
fig. 5 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. 6 is a schematic structural composition diagram of a detection apparatus for 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.
As described above, on the premise that the coupling degree of multiple RAT systems is high, an exception may occur in the access procedure to the UE. Therefore, the embodiment of the invention provides a method for detecting a network access result in a scene that a network refuses a terminal to access an LTE network and prohibits access to all LTE cells in a tracking area.
In various embodiments of the present invention, in a process that a terminal performs LTE network access by using a preset optimization scheme, a first attach request message sent by the terminal based on a TAC of a first LTE cell is received; determining that no corresponding cell exists in a tracking area corresponding to the TAC of the first LTE cell, and sending an attachment rejection message to the terminal; receiving a second attachment request message sent by the terminal based on a second LTE cell TAC, and sending an attachment success message to the terminal; the TAC of the second LTE cell is different from the TAC of the first LTE cell; 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 scheme provided by the embodiment of the invention, the residing state of the terminal in the second LTE cell with different TACs with the first LTE cell can be detected under the scene that the network refuses the terminal to access the LTE network corresponding to the first LTE cell and prohibits the terminal from accessing all LTE cells in the tracking area to which the first LTE cell belongs, so that whether the terminal is successfully accessed to the LTE network is determined, and the validity and rationality of the optimization scheme adopted by the terminal are finally determined.
Fig. 1 is a flowchart illustrating a method for detecting an LTE 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 LTE network access by using a preset optimization scheme, and as shown in fig. 1, the method for detecting a network access result includes:
step 101: receiving a first attachment request message sent by the terminal based on a TAC of a first LTE cell;
the first attach request message is sent by the terminal after the terminal selects a first LTE cell; and no corresponding cell exists in the tracking area corresponding to the TAC of the first LTE cell. 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 a Radio Resource Control (RRC) connection establishment procedure.
Specifically, the terminal sends an RRC connection request to the network side, and the network side returns an RRC connection setup response message to the terminal; the terminal sends RRC connection setup complete message to the network side.
That is, before the terminal performs an attach procedure with the network side, the terminal needs to perform a random access procedure with the network side.
More specifically, the random access procedure may include: the terminal sends a random access request message (Msg1) to the base station, wherein a preamble is carried; after receiving the message, the base station sends a random access response message (Msg2) to the terminal; after receiving the message, the terminal sends an RRC connection establishment request message (Msg3) to the base station; after receiving the message, the base station sends an RRC connection establishment message (Msg4) to the terminal; the terminal sends an RRC connection setup complete message (which may be sent through SIB 1) to the base station.
Step 102: determining that no corresponding cell exists in a tracking area corresponding to the TAC of the first LTE cell, and sending an attachment rejection message to the terminal;
in practical application, after receiving a first attach request message sent by a terminal, an LTE base station forwards the first attach request message to an MME. And the MME and the HSS perform attachment related processing including authentication, position management and the like on the terminal in the LTE network so as to complete registration in the LTE network, and when no corresponding cell exists in a tracking area corresponding to the TAC of the first LTE cell due to the movement of the terminal and the like, the MME sends an attachment rejection message to the terminal through the LTE base station.
The tracking area is a concept newly established for location management of the terminal by an LTE/System Architecture Evolution (SAE) System. Which is defined as a free mobility area where the UE does not need to update the service. The tracking area function is to manage the terminal location, and may be divided into paging management and location update management. The terminal informs the tracking area of the core network (EPC) through the tracking area registration.
When the terminal is in an idle state, the core network can know the tracking area where the terminal is located, and when the terminal in the idle state needs to be paged, paging must be performed in all cells of the tracking area where the terminal is registered. The tracking area is configured at a cell level, a plurality of cells can be configured with the same tracking area, and one cell can only belong to one tracking area.
In an embodiment, an attach reject message is encapsulated, wherein the attach reject message carries an attach reject cause value, and the attach reject cause value is used for indicating the cause of attach reject;
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.
That is, the terminal determines that the attachment fails according to the cause value of the attachment rejection in the attach reject message, and then performs an attachment procedure based on the second LTE cell, that is, sends a second attachment request message to the second LTE cell to initiate the attachment procedure, that is, performs step 103.
Step 103: receiving a second attachment request message sent by the terminal based on a second LTE cell TAC, and sending an attachment success message to the terminal;
here, the second attach request message is sent by the terminal after selecting the second LTE cell; the TAC of the second LTE cell is different from the TAC of the first LTE cell.
In an embodiment, after receiving a second attach request message sent by the terminal, authenticating the terminal to obtain a successful authentication result;
establishing a default EPS bearer (default EPSBearer) for the terminal to complete an attachment process;
and sending an attachment success message to the terminal.
Wherein, the established EPS carries data and/or signaling.
In practical application, in order to verify the validity of the optimization scheme, the behavior of the terminal after receiving the attach reject message can be detected, so as to further verify the validity and the rationality of the optimization scheme.
Based on this, in an embodiment, after sending the attach reject message to the terminal, it is determined whether a second attach request message sent by the terminal is received within a preset time period;
and if a second attach request message sent by the terminal is received within a preset time length, sending an attach success message to the terminal.
Wherein, the determining whether the second attach request message sent by the terminal is received within the preset duration includes:
detecting whether the terminal initiates an access request to the first LTE cell or the first GSM cell within a first preset time length; the TAC of the first GSM cell is the same as the TAC of the first LTE cell;
and when detecting that the access request to the first LTE cell or the GSM cell is not initiated within a first preset time length, judging whether the terminal receives a second attachment request message sent by the terminal within a second preset time length.
Here, when it is detected that an access request to the first LTE cell or to the first GSM cell is initiated within a first preset duration, it is said that the optimization scheme fails.
Of course, when the terminal does not receive the second attach request message sent by the terminal within the second preset time duration, it also indicates that the optimization scheme fails.
In practical application, the first preset time length and the second preset time length can be realized by setting a timer; specifically, a first timer is set, and before the first timer is overtime, whether the terminal initiates an access request to the first LTE cell or the first GSM cell is detected; and setting a second timer, and detecting whether the terminal receives a second attachment request message sent by the terminal before the second timer is overtime when the terminal is detected not to initiate an access request to the first LTE cell, or to the first GSM cell before the first 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.
Step 104: 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 an embodiment, in step 104, when it is detected that the terminal can camp on the second LTE cell, it is determined that the terminal successfully accesses the LTE network, further illustrating that the optimization scheme is successful.
Of course, when it is detected that the terminal cannot camp on the second LTE cell, failure of the terminal to access the LTE network is described, and further, failure of the optimization scheme is described.
In actual application, the following two situations are used for detecting whether the terminal can camp on the second LTE cell:
in a first case, after the terminal completes attachment, i.e., a registration procedure, in the second LTE cell, the terminal may set a timer, detect whether the terminal can camp on the second LTE cell before the timer expires, and if the terminal is detected to camp on the second LTE cell before the timer expires and no access request is initiated to another cell, indicate that the terminal can stably camp on the second LTE cell; and if the terminal is detected to initiate an access request to other cells before the timer is overtime, the terminal cannot stably reside in the second LTE cell.
A second situation, when the first situation detects that the terminal can camp on the second LTE cell, when the transmission power of the second GSM cell is higher than that of the second LTE cell, whether the terminal can camp on the second LTE cell is detected, if the terminal is camped on the second LTE cell and an access request is not initiated to the second GSM cell, the terminal can stably camp on the second LTE cell is indicated; and if the terminal initiates an access request to the second GSM cell, the terminal cannot stably reside in the second LTE cell. Wherein the TAC of the second GSM cell is the same as the TAC of the second LTE cell.
In practical application, a network environment applied to the embodiment of the invention can be constructed in a laboratory simulation mode, that is, the scene where the terminal is located in the embodiment of the invention is obtained in a simulation mode, so that on one hand, a worker does not need to go to a field for detection, and therefore, the cost of the worker can be reduced; on the other hand, the scene of the scene may also include other factors, so that the detection result is influenced, and therefore, by adopting the simulation network of the embodiment of the invention, the abnormal scene occurring in the scene network can be stably reproduced, and the influence of other factors on the detection result under the scene described in the embodiment of the invention can be eliminated.
Based on this, in an embodiment, the method may further include:
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.
Of course, in practical applications, the simulated network environment may also include a TDSCDMA network to truly simulate a real network environment.
According to the method provided by the embodiment of the invention, in the process that the terminal adopts a preset optimization scheme to execute the LTE network access, the terminal receives a first attachment request message sent by the TAC of a first LTE cell; determining that no corresponding cell exists in a tracking area corresponding to the TAC of the first LTE cell, and sending an attachment rejection message to the terminal; receiving a second attachment request message sent by the terminal based on a second LTE cell TAC, and sending an attachment success message to the terminal; the TAC of the second LTE cell is different from the TAC of the first LTE cell; by adopting the scheme provided by the embodiment of the invention, the residing state of the terminal in the second LTE cell with different TACs with the first LTE cell can be detected under the scene that the network refuses the terminal to access the LTE network corresponding to the first LTE cell and prohibits the access to all LTE cells in the tracking cell to which the first LTE cell belongs, so that whether the terminal successfully accesses the LTE network is determined, and the validity and rationality of the optimization scheme adopted by the terminal are finally determined.
In addition, the network interacting with the terminal is a network in a simulation network environment, a simulation mode is adopted, workers do not need to go to the site, and other factors influencing detection can be removed, so that the personnel cost can be greatly reduced, and meanwhile, the influence of other factors on the detection result under the scene described by the embodiment of the invention can be eliminated.
The invention is described in more detail below with reference to an application example.
In the embodiment of the application, a network environment is constructed through a simulation platform, and the method comprises the following steps: 2 TDD-LTE cells (LTE Cell 0 and LTE Cell 1), 1 TDSCDMA Cell, two GSM cells (GSM0 and GSM 1); the method comprises the steps of configuring GSM adjacent Cell information in SIB7 of LTE Cell 0 and LTE Cell 1, and configuring LTE adjacent Cell information in SI of GSM0 and GSM 1. FIG. 2A is a schematic diagram of a SIB7 displayed via a computer display screen; fig. 2B is a schematic diagram of SI displayed by a computer display screen.
The LTE Cell, the TDSCDMA Cell, and the GSM Cell are all configured as the same Public Land Mobile Network (PLMN), the LTE Cell 0, the TDSCDMA, and the GSM0 are configured with the same TAC, that is, TAC1, and the LTE Cell 1 and the GSM 1 are configured with the same TAC, that is, TAC 2.
Wherein, PLMN means: networks established and operated by governments or operators approved therefor for the purpose of providing land mobile services to the public. In practical applications, the PLMN is generally set by the operator. The PLMN consists of a Mobile country number (MCC) and a Mobile network number (MNC), wherein the MCC uniquely represents the country of the Mobile subscriber, and the MCC in China is 460; the MNC uniquely represents the network in the country, for example, the china mobile GSM network is 00 and the china unicom GSM network is 01.
The abnormal scene of the application embodiment is as follows: the network refuses the terminal to access the LTE network corresponding to the first LTE cell and therefore forbids the whole TAC abnormally, namely forbids all cells of the tracking area to which the first LTE cell belongs, and the effectiveness and the rationality of the optimization scheme of the cross-RAT network searching scheme based on the access TAC evaluation are detected in the scene.
In the embodiment of the present application, three timers are involved, namely, timer1, timer 2 and timer 3.
As shown in fig. 3, the method for detecting a network access result according to the embodiment of the present application includes the following steps:
step 301: triggering UE to start a registration process to an LTE cell 0;
here, the simulation platform needs to configure that the power of LTE cell 0 is higher than that of LTE cell 1, and the power of LTE cell 1 is higher than that of other cells, so as to trigger the UE to start registering on LTE cell 0.
Specifically, the UE sends an RRC Connection Request (i.e., an RRC Connection Request) message to a base station corresponding to the LTE cell 0, and after receiving the RRC Connection Request message sent by the UE, the base station completes an RRC Connection setup (RRCConnectionSetup) procedure with the UE.
Step 302: after the RRC connection is successfully established, the UE sends an attachment Request (namely Attach Request) message to a base station corresponding to the LTE Cell 0, and the UE is authenticated to be attached to the LTE Cell 0 Cell;
here, at this time, an abnormal rejection situation is simulated through the simulation platform, and an Attach Reject (i.e., Attach Reject) message is sent to the UE, where the cause (cause) value carried is No enable Cell in tracking area, which indicates that No corresponding Cell exists in the tracking area, and fig. 4 is a schematic diagram of the cause value displayed through the computer display screen.
Step 303: after sending Attach Reject (i.e., Attach Reject) message to the UE, the simulation system monitors the behavior of the UE for the duration of timer 1;
specifically, it is detected that the UE abandons the access request attempt on LTE Cell 0 and does not make an access request on GSM0, and then step 304 is executed.
When the UE does not give up the access request attempt on the LTE Cell 0 within the duration of the timer1 or tries to make the access request on the GSM0, the optimization scheme is failed.
Step 304: the simulation system monitors the behavior of the UE, and detects the following conditions after the timeout of the Timer1 and before the timeout of the Timer 2: the UE starts to carry out an access request on the LTE Cell 1;
here, if the UE is not detected to make an access request on LTE Cell 1 after Timer 2 times out, it indicates that the optimization scheme fails.
Step 305: after receiving the access request, the simulation system allocates downlink resources (including a default ESP bearer), completes the registration process of the UE on the LTE Cell 1, monitors the duration of the timer 3, determines that the UE can stably reside on the LTE network, and then executes step 306;
failure of the optimization scheme is explained when the UE cannot stably camp on the LTE network within the duration of timer 3.
Step 306: the simulation system improves the transmitting power of the GSM 1;
step 307: the simulation system detects that the UE cannot initiate an access request to the GSM 1 and can still stably reside on the LTE network.
At this time, the UE is successfully accessed to the LTE network, and the optimization scheme is successful. Of course, when it is detected that the UE initiates an access request to GSM 1, the optimization scheme is failed.
Fig. 5 is a schematic structural composition diagram of an apparatus for detecting an LTE network access result according to an embodiment of the present invention, where the apparatus of this embodiment is applied to a process in which a terminal performs LTE network access by using a preset optimization scheme, and as shown in fig. 5, the apparatus includes:
a first access processing unit 51, configured to receive a first attach request message sent by the terminal based on a tracking area code TAC of a first LTE cell; determining that no corresponding cell exists in a tracking area corresponding to the TAC of the first LTE cell, and sending an attachment rejection message to the terminal;
a second access processing unit 52, configured to receive a second attach request message sent by the terminal based on a second LTE cell TAC, and send an attach success message to the terminal; the TAC of the second LTE cell is different from the TAC of the first LTE cell;
and the detecting unit 53 is configured to determine, based on the detection result, whether the terminal successfully accesses the LTE network in the camping state of the terminal in the second LTE cell.
In an embodiment, the first access processing unit 51 is further configured to encapsulate an attach reject message, where the attach reject message carries a cause value of the attach reject, and the cause value of the attach reject is used to characterize a cause of the attach reject;
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 an embodiment, the detecting unit 53 is further configured to determine whether a second attach request message sent by the terminal is received within a preset time after sending an attach reject message to the terminal;
and if a second attach request message sent by the terminal is received within a preset time length, triggering the second access processing unit 52 to send an attach success message to the terminal.
In an embodiment, the detecting unit 53 is specifically configured to: when detecting that the terminal can camp on the second LTE cell, determining that the terminal successfully accesses an LTE network.
In an embodiment, the apparatus may further include:
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;
accordingly, the network interacting with the terminal is the network in the simulated network environment.
In practical application, the first access processing unit 51 and the second access processing unit 52 may be implemented by a processor in a device for detecting an access result of an LTE network in combination with a communication interface; the detection unit and the simulation unit can be realized by a processor in the detection device of the LTE network access result.
It should be noted that: the network access result detection apparatus provided in the foregoing embodiment is only illustrated by dividing the program modules when performing LTE network access result detection, and in practical applications, the above processing may be distributed and completed by different program modules as needed, that is, the internal structure of the apparatus is divided into different program modules, so as to complete all or part of the above-described processing. In addition, the detection apparatus for the LTE network access result provided by the above embodiment and the detection method embodiment for the LTE network access result belong to the same concept, and specific implementation processes thereof are detailed in the method embodiment and are not described herein again.
Based on the above hardware implementation of each unit in the detection apparatus for the LTE network access result, in order to implement the method provided by the embodiment of the present invention, an embodiment of the present invention further provides a detection apparatus for an LTE network access result, and in a process in which a terminal performs LTE network access by using a preset optimization scheme, as shown in fig. 6, the apparatus 60 includes: a processor 61 and a memory 62 for storing computer programs capable of running on the processor,
wherein, when the processor 61 is used for running the computer program, the following steps are executed:
receiving a first attachment request message sent by the terminal based on a TAC of a first LTE cell;
determining that no corresponding cell exists in a tracking area corresponding to the TAC of the first LTE cell, and sending an attachment rejection message to the terminal;
receiving a second attachment request message sent by the terminal based on a second LTE cell TAC, and sending an attachment success message to the terminal; the TAC of the second LTE cell is different from the TAC of the first LTE cell;
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 some embodiments, the processor 61 is further configured to execute, when running the computer program:
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 some embodiments, the processor 61 is further configured to execute, when running the computer program:
after receiving a second attachment request message sent by the terminal, authenticating the terminal to obtain an authentication success result;
establishing a default EPS bearing for the terminal to complete an attachment process;
and sending an attachment success message to the terminal.
In some embodiments, the processor 61 is further configured to execute, when running the computer program:
after sending an attachment rejection message to the terminal, judging whether a second attachment request message sent by the terminal is received within a preset time length;
and if a second attach request message sent by the terminal is received within a preset time length, sending an attach success message to the terminal.
In some embodiments, the processor 61 is further configured to execute, when running the computer program:
detecting whether the terminal initiates an access request to the first LTE cell or the first GSM cell within a first preset time length; the TAC of the first GSM cell is the same as the TAC of the first LTE cell;
and when detecting that the access request to the first LTE cell or the GSM cell is not initiated within a first preset time length, judging whether the terminal receives a second attachment request message sent by the terminal within a second preset time length.
In some embodiments, the processor 61 is further configured to execute, when running the computer program:
when detecting that the terminal can camp on the second LTE cell, determining that the terminal successfully accesses an LTE network.
In some embodiments, the processor 61 is further configured to execute, when running the computer program:
detecting that the terminal is able to camp on the second LTE cell when the transmit power of the second GSM cell is higher than the transmit power of the second LTE cell; the TAC of the second GSM cell is the same as the TAC of the second LTE cell.
In some embodiments, the processor 61 is further configured to execute, when running the computer program:
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.
Of course, in practical applications, the apparatus may further include a communication interface 63, as shown in fig. 6. The various components of the device 60 are coupled together by a bus system 64. It will be appreciated that the bus system 64 is used to enable communications among the components. The bus system 64 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 64 in fig. 6.
In an exemplary embodiment, an embodiment of the present invention further provides a computer storage medium, which is a computer readable storage medium, such as a memory 62 including a computer program, where the computer program is executable by a processor 61 of the apparatus 60 for detecting an LTE network access result, so as 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 (10)
1. A method for detecting an LTE network access result is applied to a process that a terminal executes LTE network access by adopting a preset optimization scheme, and comprises the following steps:
receiving a first attachment request message sent by the terminal based on a Tracking Area Code (TAC) of a first LTE cell, wherein no corresponding cell exists in a tracking area corresponding to the TAC of the first LTE cell;
determining that no corresponding cell exists in a tracking area corresponding to the tracking area code TAC of the first LTE cell, and sending an attachment rejection message to the terminal;
receiving a second attachment request message sent by the terminal based on a second LTE cell TAC, and sending an attachment success message to the terminal; the PLMN of the second LTE cell is the same as that of the first LTE cell, and the TAC of the second LTE cell is different from that of the first LTE cell;
detecting the residence state of the terminal in the second LTE cell, and determining whether the terminal is successfully accessed to an LTE network based on the detection result;
the method further 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;
accordingly, the network interacting with the terminal is the network in the simulated network environment.
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 cause value of attach reject 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 the receiving a second attach request message sent by the terminal based on a second LTE cell TAC and sending an attach success message to the terminal comprises:
after receiving a second attachment request message sent by the terminal, authenticating the terminal to obtain an authentication success result;
establishing a default Evolved Packet System (EPS) bearer for the terminal to complete an attachment process;
and sending an attachment success message to the terminal.
4. The method of claim 1, further comprising:
after sending an attachment rejection message to the terminal, judging whether a second attachment request message sent by the terminal is received within a preset time length;
and if a second attach request message sent by the terminal is received within a preset time length, sending an attach success message to the terminal.
5. The method of claim 4, wherein the determining whether the second attach request message sent by the terminal is received within a preset time duration comprises:
detecting whether the terminal initiates an access request to the first LTE cell or a first GSM cell within a first preset time; the TAC of the first GSM cell is the same as the TAC of the first LTE cell;
and when detecting that the access request to the first LTE cell or the GSM cell is not initiated within a first preset time length, judging whether the terminal receives a second attachment request message sent by the terminal within a second preset time length.
6. The method of claim 1, wherein the determining whether the terminal successfully accesses an LTE network based on the detection result comprises:
when detecting that the terminal can camp on the second LTE cell, determining that the terminal successfully accesses an LTE network.
7. The method of claim 6, wherein the detecting that the terminal can camp on the second LTE cell comprises:
detecting that the terminal is able to camp on a second GSM cell when the transmit power of the second GSM cell is higher than the transmit power of the second LTE cell; the TAC of the second GSM cell is the same as the TAC of the second LTE cell.
8. The device for detecting the LTE network access result is applied to the process that the terminal executes the LTE network access by adopting a preset optimization scheme, and comprises the following components:
the first access processing unit is used for receiving a first attachment request message sent by the terminal based on the TAC of the first LTE cell; determining that no corresponding cell exists in a tracking area corresponding to the TAC of the first LTE cell, and sending an attachment rejection message to the terminal;
the second access processing unit is used for receiving a second attachment request message sent by the terminal based on a second LTE cell TAC and sending an attachment success message to the terminal; the PLMN of the second LTE cell is the same as that of the first LTE cell, and the TAC of the second LTE cell is different;
the detection unit is used for determining whether the terminal is successfully accessed to the LTE network or not based on the detection result when the terminal is in the resident state in the second 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;
accordingly, the network interacting with the terminal is the network in the simulated network environment.
9. The device for detecting the LTE network access result is applied to the process that the terminal executes the LTE network access 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 7 when running the computer program.
10. A computer storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 7.
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| CN112074001A (en) * | 2020-08-27 | 2020-12-11 | 展讯半导体(成都)有限公司 | Network access method and communication device |
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