CN108156637B - Detection method and device and computer storage medium - Google Patents

Detection method and device and computer storage medium Download PDF

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Publication number
CN108156637B
CN108156637B CN201711470413.6A CN201711470413A CN108156637B CN 108156637 B CN108156637 B CN 108156637B CN 201711470413 A CN201711470413 A CN 201711470413A CN 108156637 B CN108156637 B CN 108156637B
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terminal
lte
cell
network
gsm
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CN108156637A (en
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刘畅
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Telefonaktiebolaget LM Ericsson AB
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Telefonaktiebolaget LM Ericsson AB
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0066—Transmission or use of information for re-establishing the radio link of control information between different types of networks in order to establish a new radio link in the target network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H04W36/0088—Scheduling hand-off measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data

Abstract

The invention discloses a detection method and a device and a computer storage medium, which are applied to the process that a terminal adopts a preset optimization scheme to execute network access, and the method comprises the following steps: sending a redirection message to the terminal; the redirection message is sent after the terminal is registered to the first LTE cell and the signal intensity of the GSM cell is higher than that of the first LTE cell; the redirection message at least carries candidate LTE cell frequency point information reselected from the GSM network to the LTE network; detecting whether an access request sent by a terminal is received; the access request is sent after the terminal is switched from a first LTE cell to a GSM cell, the frequency point information of the candidate LTE cell is determined not to be consistent with the LTE adjacent cell information configured in the system information, and the signal intensity is selected to be higher than that of a second LTE cell of the GSM cell; the configured LTE neighboring cell information at least comprises second LTE cell information; and determining whether the terminal can successfully access the network based on the detection result.

Description

Detection method and device and computer storage medium
Technical Field
The present invention relates to cell reselection technology in the field of mobile communications, and in particular, to a detection method and apparatus, 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 access network to fail, it is necessary to effectively detect the network access result in an abnormal situation.
Disclosure of Invention
The embodiment of the invention provides a detection method and device and a computer storage medium, which can effectively detect a network access result in an abnormal scene.
The embodiment of the invention provides a detection method, which is applied to a process that a terminal executes network access by adopting a preset optimization scheme, and comprises the following steps:
sending a redirection message to the terminal; the redirection message is sent after the terminal is registered to a first LTE cell and the signal strength of a GSM cell is higher than that of the first LTE cell; the redirection message at least carries candidate LTE cell frequency point information reselected from a GSM network to an LTE network;
detecting whether an access request sent by the terminal is received; the access request is sent after the terminal is switched from the first LTE cell to the GSM cell, the frequency point information of the candidate LTE cell is determined not to be matched with the LTE adjacent cell information configured in the system information, and the signal intensity of the second LTE cell is selected to be higher than that of the GSM cell; the configured LTE neighboring cell information at least comprises the second LTE cell information;
and determining whether the terminal can successfully access the network based on the detection result.
In the foregoing solution, the determining whether the terminal can successfully access the network based on the detection result includes:
when an access request sent by the terminal is received within a preset time length, the terminal is determined to be capable of successfully accessing a network;
and allocating Radio Resource Control (RRC) resources to the terminal to complete the establishment of RRC connection.
In the above scheme, the method further comprises:
receiving a tracking area updating request sent by the terminal;
and completing the tracking area updating process and reestablishing a data bearer (DRB) between the terminal and the base station for the terminal.
In the above scheme, the method further comprises:
acquiring a first time length; the first time length represents the time length from the moment that the signal strength of the second LTE cell is higher than that of the GSM cell to the moment that the terminal sends the access request;
acquiring a second time length; the second time length represents the time length from the time when the signal strength of the second LTE cell is higher than the signal strength of the GSM cell to the time when the terminal sends the access request again after the terminal receives the redirection message again and switches from the first LTE cell to the GSM cell again;
and determining whether the terminal can successfully return to the LTE network or not according to the second time length and the third time length.
In the foregoing solution, the determining whether the terminal can successfully access the network according to the first duration and the second duration includes:
when the second duration is less than the first duration, determining that the terminal can successfully return to the LTE network;
alternatively, the first and second electrodes may be,
and when the second duration is greater than or equal to the first duration, determining that the terminal cannot successfully return to the LTE network.
In the foregoing solution, the determining whether the terminal can successfully access the network based on the detection result includes:
and when the access request sent by the terminal is not received within the preset time length, determining that the terminal can not successfully access the network.
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 present invention further provides a detection apparatus, which is applied to a process in which a terminal performs network access by using a preset optimization scheme, and the apparatus includes:
an access processing unit, configured to send a redirection message to the terminal; the redirection message is sent after the terminal is registered to a first LTE cell and the signal strength of a GSM cell is higher than that of the first LTE cell; the redirection message at least carries candidate LTE cell frequency point information reselected from a GSM network to an LTE network;
a detection unit, configured to detect whether an access request sent by the terminal is received; the access request is sent after the terminal is switched from the first LTE cell to the GSM cell, the frequency point information of the candidate LTE cell is determined not to be matched with the LTE adjacent cell information configured in the system information, and the signal intensity of the second LTE cell is selected to be higher than that of the GSM cell; the configured LTE neighboring cell information at least comprises the second LTE cell information; and determining whether the terminal can successfully access the network based on the detection result.
In the foregoing solution, the detecting unit is specifically configured to:
when receiving an access request sent by the terminal within a preset time length, determining that the terminal can successfully access a network, and triggering the access processing unit to allocate RRC resources to the terminal so as to complete establishment of RRC connection.
In the foregoing solution, the access processing unit is further configured to:
receiving a tracking area updating request sent by the terminal;
and completing the tracking area updating process and reestablishing the DRB for the terminal.
In the foregoing solution, the detecting unit is further configured to:
acquiring a first time length; the first time length represents the time length from the moment that the signal strength of the second LTE cell is higher than that of the GSM cell to the moment that the terminal sends the access request;
acquiring a second time length; the second time length represents the time length from the time when the signal strength of the second LTE cell is higher than the signal strength of the GSM cell to the time when the terminal sends the access request again after the terminal receives the redirection message again and switches from the first LTE cell to the GSM cell again;
and determining whether the terminal can successfully return to the LTE network or not according to the first time length and the second time length.
In the foregoing solution, the detecting unit is specifically configured to:
when the second duration is less than the first duration, determining that the terminal can successfully return to the LTE network;
alternatively, the first and second electrodes may be,
and when the second duration is greater than or equal to the first duration, determining that the terminal cannot successfully return to the LTE network.
In the foregoing solution, the detecting unit is specifically configured to:
and when the access request sent by the terminal is not received within the preset time length, determining that the terminal can not successfully access the 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 present invention further provides a detection apparatus, which is applied to a process in which a terminal performs network access by 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,
wherein the processor is configured to perform the steps of any of the above methods when running 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 provided by the embodiment of the invention, a terminal sends a redirection message to the terminal in the process of executing network access by adopting a preset optimization scheme; the redirection message is sent after the terminal is registered to a first LTE cell and the signal strength of a GSM cell is higher than that of the first LTE cell; the redirection message at least carries candidate LTE cell frequency point information reselected from a GSM network to an LTE network; detecting whether an access request sent by the terminal is received; the access request is sent after the terminal is switched from the first LTE cell to the GSM cell, the frequency point information of the candidate LTE cell is determined not to be matched with the LTE adjacent cell information configured in the system information, and the signal intensity of the second LTE cell is selected to be higher than that of the GSM cell; the configured LTE neighboring cell information at least comprises the second LTE cell information; the method and the device can detect whether the access request sent by the terminal after being switched to the GSM cell different from the LTE network is received or not under the scene of misconfiguration of the redirection message in the process of switching the different RAT (IRAT) cell, thereby determining whether the network is successfully accessed or not and finally determining the validity and the rationality of the optimization scheme adopted by the terminal.
Drawings
FIG. 1 is a flow chart of a detection method 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 flow chart of a detection method according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of the priority displayed by the computer display screen according to the embodiment of the present invention;
FIG. 5 is a first schematic structural diagram of a detecting device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a second exemplary embodiment of a detection apparatus according to 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 mentioned above, on the premise that the coupling degree of multiple RAT systems is high, an exception may occur in the access procedure of the terminal. Therefore, the embodiment of the invention provides a method for detecting a network access result under the scene of wrong configuration of a redirection message in the process of IRAT cell switching.
In various embodiments of the present invention, a terminal sends a redirection message to the terminal in the process of executing network access by adopting a preset optimization scheme; the redirection message is sent after the terminal is registered to a first LTE cell and the signal strength of a GSM cell is higher than that of the first LTE cell; the redirection message at least carries candidate LTE cell frequency point information reselected from a GSM network to an LTE network; detecting whether an access request sent by the terminal is received; the access request is sent after the terminal is switched from the first LTE cell to the GSM cell, the frequency point information of the candidate LTE cell is determined not to be matched with the LTE adjacent cell information configured in the system information, and the signal intensity of the second LTE cell is selected to be higher than that of the GSM cell; the configured LTE neighboring cell information at least comprises the second LTE cell information; and determining whether the terminal can successfully access the network based on the detection result.
By adopting the scheme provided by the embodiment of the invention, whether the access request sent by the terminal after being switched to the GSM cell different from the LTE network is received or not can be detected under the scene of misconfiguration of the redirection message in the switching process of the IRAT cell, so that whether the network is successfully accessed or not is determined, and finally, the effectiveness and the rationality of the optimization scheme adopted by the terminal are determined, and the feasibility and the stability can also be understood.
Fig. 1 is a schematic flow chart of a detection method 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 network access by using a preset optimization scheme, as shown in fig. 1, the detection method includes:
step 101: sending a redirection message to the terminal;
here, the redirection message is transmitted after the terminal is registered to the first LTE cell and when the signal strength of the GSM cell is higher than the signal strength of the first LTE cell.
The redirection message at least carries candidate LTE cell frequency point information reselected from the GSM network to the LTE network.
The candidate LTE cell frequency point information is not matched with the LTE cell frequency point information configured by the system information, and the non-matching can be represented as frequency point information which does not exist at all or can be represented as non-configured LTE cell frequency point information.
It should be noted that, the premise that the network side (LTE base station) sends the redirection message to the terminal is that the terminal has completed a registration procedure (including completion of an RRC connection establishment procedure and an attach procedure with the network), resides in the first LTE cell, and has a corresponding data service.
The RRC connection establishment process comprises that the terminal sends an RRC connection request to the network side, and the network side returns an RRC connection establishment 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.
For the attachment process, it includes: the terminal sends an attachment request to a network side; after receiving the attachment request, the network side authenticates 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.
During actual application, after receiving an attach request message sent by a terminal, an LTE base station forwards the attach request message to a Mobility Management Entity (MME). The MME and a Home Subscriber Server (HSS) perform attachment related processing including authentication, location management and the like on the terminal in the LTE network so as to complete registration in the LTE network; meanwhile, the terminal also needs to maintain corresponding registration information in other networks, such as a network related to Wideband Code Division Multiple Access (WCDMA)/GSM/Code Division Multiple Access (CDMA), and so the terminal actually works in the LTE network, but has registration information in other networks.
Step 102: detecting whether an access request sent by the terminal is received;
here, the access request is sent after the terminal is switched from the first LTE cell to the GSM cell, and it is determined that the candidate LTE cell frequency point information is not consistent with LTE neighbor cell information configured in system information, and a second LTE cell having a signal strength higher than that of the GSM cell is selected, where the configured LTE neighbor cell information at least includes the second LTE cell information.
That is to say, after the terminal is switched from the first LTE cell to the GSM cell, when it is detected that the signal strength of the second LTE cell is higher than the signal strength of the GSM cell and it is determined that the candidate LTE cell frequency point information does not coincide with LTE neighbor cell information configured in system information, the terminal selects the second cell (that is, uses statically configured LTE neighbor cell information as a selection reference) and then sends the access request.
Step 103: and determining whether the terminal can successfully access the network based on the detection result.
Specifically, when an access request sent by the terminal is received within a preset time period, it is determined that the terminal can successfully access the network, thereby further illustrating that the optimization scheme is successful. At this time, the network side allocates RRC resources for the terminal to complete the establishment of RRC connection, and subsequently receives a tracking area update request sent by the terminal; and completing the tracking area updating process and reestablishing the DRB for the terminal.
Of course, when the access request sent by the terminal is not received within the preset time, it is determined that the terminal cannot successfully access the network, thereby explaining that the optimization scheme fails.
In the process of updating the tracking area, an MME mainly determines a new tracking area list for the terminal according to the current position of the terminal and sends the new tracking area list to the terminal.
In practical application, the preset duration can be set according to needs. In addition, the preset duration can be realized by setting a timer; specifically, a timer is set after the signal strength of the second LTE cell is higher than the signal strength of the GSM cell, and before the timer expires, whether the access request sent by the terminal is received or not is detected. The purpose of setting the timer is to avoid detecting too long.
In practical application, in order to verify the effectiveness of the optimization scheme, the behavior of returning the terminal from the GSM network to the LTE network again for various reasons can be detected, so as to further verify the effectiveness and the reasonableness of the optimization scheme.
Based on this, in an embodiment, the method may further include:
acquiring a first time length; the first time length represents the time length from the moment that the signal strength of the second LTE cell is higher than that of the GSM cell to the moment that the terminal sends the access request;
acquiring a second time length; the second time length represents the time length from the time when the signal strength of the second LTE cell is higher than the signal strength of the GSM cell to the time when the terminal sends the access request again after the terminal receives the redirection message again and switches from the first LTE cell to the GSM cell again;
and determining whether the terminal can successfully return to the LTE network or not according to the second time length and the third time length.
The second duration may be understood as a duration consumed by the terminal to return to the LTE network from the GSM again.
In an embodiment, when the second duration is less than the first duration, it is determined that the terminal can successfully return to the LTE network, which further illustrates that the optimization scheme is successful.
And when the second duration is greater than or equal to the first duration, determining that the terminal cannot successfully return to the LTE network, wherein the optimization scheme fails.
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.
In the method provided by the embodiment of the invention, the terminal sends the redirection message to the terminal in the process of executing network access by adopting a preset optimization scheme; the redirection message is sent after the terminal is registered to a first LTE cell and the signal strength of a GSM cell is higher than that of the first LTE cell; the redirection message at least carries candidate LTE cell frequency point information reselected from a GSM network to an LTE network; detecting whether an access request sent by the terminal is received; the access request is sent after the terminal is switched from the first LTE cell to the GSM cell, the frequency point information of the candidate LTE cell is determined not to be matched with the LTE adjacent cell information configured in the system information, and the signal intensity of the second LTE cell is selected to be higher than that of the GSM cell; the configured LTE neighboring cell information at least comprises the second LTE cell information; the method and the device can detect whether the access request sent by the terminal after being switched to the GSM cell different from the LTE network is received or not under the scene that the configuration of the redirection message is wrong in the switching process of the IRAT cell, thereby determining whether the network is successfully accessed or not, finally determining the effectiveness and the rationality of the optimization scheme adopted by the terminal, and also being understood as feasibility and stability.
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 (LTE Cell0 and LTE Cell 1), 1 GSM Cell; the method comprises the steps that GSM neighbor Cell information is configured in SIB7 of LTE Cell0 and LTE Cell 1, and LTE neighbor Cell information is configured in GSM SI. FIG. 2A is a schematic diagram of a SIB7 displayed via a computer display screen, and FIG. 2B is a schematic diagram of SI displayed via a computer display screen.
Here, LTE Cell0, LTE Cell 1, GSM Cell are all configured as the same PLMN, the same Tracking Area Code (TAC) code. The LTE Cell 1 is configured to be different frequency, different Physical Cell Identity (PCI) address. The reselection priority for configuring LTE Cell0 is higher than LTE Cell 1.
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 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.
The abnormal scene of the application embodiment is as follows: in the switching process of the UE from the LTE network to the General Packet Radio Service (GPRS) network, a redirection message issued by the network side carries an incorrect selectable item, and under the scene, whether the UE cannot return to the LTE after residing in the GSM cell is detected, so that the validity and the reasonability of an optimization scheme influenced by data service are ensured.
In the embodiment of the present application, three timers are involved, which are named Timer 1, Timer2, and Timer3 respectively.
Step 301: triggering UE to start a registration process to an 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 cell0, 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 Cell0, and the UE is authenticated to be attached to the LTE Cell0 Cell;
here, in the attach procedure, the establishment of the default EPS bearer (defaultepsipedrear) is completed.
Step 303: after the UE completes initialization, initiating a data service;
step 304: the simulation platform initiates an RRC connection reconfiguration (RRCConnectionReconfiguration) message to the UE, and configures a measurement report of a GSM cell of a neighboring cell;
step 305: the simulation platform reduces the signal intensity of the current LTE Cell (namely LTE Cell 0), improves the signal intensity of the GSM Cell, and enables the UE to trigger a test report to be reported to the LTE Cell (namely LTE Cell 0);
step 306: the network sends an RRC connection release (RRCConnectionRelease) message, namely a redirection message, which carries redirection information;
here, the redirection information includes a frequency point ARFCN of the target GSM Cell, a frequency point of a candidate LTE Cell reselected from the GSM network to the LTE network by an additional option, and a dedicated priority corresponding to each Cell, where the frequency point information of the candidate Cell is not consistent with LTE neighbor Cell information (LTE Cell0 and LTE Cell 1 Cell information) configured in GSM SI2, fig. 4 is a schematic diagram of dedicated priorities displayed on a computer screen, and generally, the priorities are represented by numbers, and the sizes of the priorities are sequentially represented by numbers, and the corresponding priorities are represented by numbers 6 and 7 in fig. 4.
Step 307: the simulation platform detects the behavior of the UE: within the duration of Timer 1, if the UE can initiate an RR connection request to a GSM cell, and then initiate a Routing Area Update (RAU) flow, and a subsequent Data service activation flow of a calling (MO) Packet Data Protocol (PDP, Packet Data Protocol) to perform a Data service;
step 308: the simulation platform improves the signal strength of the LTE Cell 1 to be higher than a reselection trigger threshold value;
step 309: the simulation platform monitors the behavior of the UE, if the UE initiates an RRCConnectionrequest message to an LTE cell 1 after the timeout of the Timer2 and before the timeout of the Timer3, and the network allocates RRC resources to establish RRC connection;
here, the cause value carried in the RRCConnectionRequest message is MO signaling, which indicates signaling for actively initiating a call.
In the process, the simulation platform records the time consumed from the time point (moment) of the change of the signal of the LTE cell 1 to the time point (moment) of the initiation of the RRCConnectionRequest message by the UE, and records the time as delta _1, the time of Timer2 is represented by Timer2, the time of Timer3 is represented by Timer3, and then there is delta _1< (Timer 3-Timer 2). delta _1 may be referred to as the length of time it takes for the GSM network to return to the LTE network.
Here, if the step 309 is successfully executed, it indicates that the optimization scheme is successful, and if the UE continues to stay in the GSM cell and initiates an RRCConnectionRequest message to the LTE cell 1, it indicates that the optimization scheme is failed.
Step 310: the simulation platform monitors the behavior of the UE: the UE then initiates a tracking area update Request (TrackingAreaUpdate Request) message, the network receives the Request and completes a Tracking Area Update (TAU) flow, and the DRB bearer is reestablished;
step 311: recording the time length consumed by returning the new primary UE from the GSM network to the LTE network, and recording as delta _ 2;
here, by again performing steps 304-309 to obtain delta _2, delta _2 is obtained in the same manner as delta _ 1.
Step 312: if delta _2< delta _1, the optimization scheme is proved to be successful, otherwise, the optimization scheme is failed.
Fig. 5 is a schematic structural diagram of a detection apparatus according to an embodiment of the present invention, where the apparatus of this embodiment is applied to a process in which a terminal performs network access by using a preset optimization scheme, as shown in fig. 5, the apparatus includes:
an access processing unit 51, configured to send a redirection message to the terminal; the redirection message is sent after the terminal is registered to a first LTE cell and the signal strength of a GSM cell is higher than that of the first LTE cell; the redirection message at least carries candidate LTE cell frequency point information reselected from a GSM network to an LTE network;
a detecting unit 52, configured to detect whether an access request sent by the terminal is received; the access request is sent after the terminal is switched from the first LTE cell to the GSM cell, the frequency point information of the candidate LTE cell is determined not to be matched with the LTE adjacent cell information configured in the system information, and the signal intensity of the second LTE cell is selected to be higher than that of the GSM cell; the configured LTE neighboring cell information at least comprises the second LTE cell information; and determining whether the terminal can successfully access the network based on the detection result.
In an embodiment, the detecting unit 52 is specifically configured to:
when receiving an access request sent by the terminal within a preset time period, it is determined that the terminal can successfully access the network, and the access processing unit 51 is triggered to allocate RRC resources to the terminal, so as to complete establishment of RRC connection.
In an embodiment, the access processing unit 51 is further configured to:
receiving a tracking area updating request sent by the terminal;
and completing the tracking area updating process and reestablishing the DRB for the terminal.
In an embodiment, the detecting unit 52 is further configured to:
acquiring a first time length; the first time length represents the time length from the moment that the signal strength of the second LTE cell is higher than that of the GSM cell to the moment that the terminal sends the access request;
acquiring a second time length; the second time length represents the time length from the time when the signal strength of the second LTE cell is higher than the signal strength of the GSM cell to the time when the terminal sends the access request again after the terminal receives the redirection message again and switches from the first LTE cell to the GSM cell again;
and determining whether the terminal can successfully return to the LTE network or not according to the first time length and the second time length.
In an embodiment, the detecting unit 52 is specifically configured to:
when the second duration is less than the first duration, determining that the terminal can successfully return to the LTE network;
alternatively, the first and second electrodes may be,
and when the second duration is greater than or equal to the first duration, determining that the terminal cannot successfully return to the LTE network.
In an embodiment, the detecting unit 52 is specifically configured to:
and when the access request sent by the terminal is not received within the preset time length, determining that the terminal can not successfully access the 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 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 practical application, the access processing unit 51 may be implemented by a processor in the detection apparatus in combination with a communication interface; the detection unit 52 and the simulation unit may be implemented by a processor in the detection device.
It should be noted that: in the detection device provided in the foregoing embodiment, when detecting a network access result, only the division of each program module is taken 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 to complete all or part of the processing described above. In addition, the detection apparatus and the detection method provided by the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments for details, which are not described herein again.
Based on the hardware implementation of each unit in the detection apparatus, in order to implement the method provided in the embodiment of the present invention, an embodiment of the present invention further provides a detection apparatus, and in a process in which a terminal performs 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:
in the process that the terminal executes network access by adopting a preset optimization scheme, the method comprises the following steps:
sending a redirection message to the terminal; the redirection message is sent after the terminal is registered to a first LTE cell and the signal strength of a GSM cell is higher than that of the first LTE cell; the redirection message at least carries candidate LTE cell frequency point information reselected from a GSM network to an LTE network;
detecting whether an access request sent by the terminal is received; the access request is sent after the terminal is switched from the first LTE cell to the GSM cell, the frequency point information of the candidate LTE cell is determined not to be matched with the LTE adjacent cell information configured in the system information, and the signal intensity of the second LTE cell is selected to be higher than that of the GSM cell; the configured LTE neighboring cell information at least comprises the second LTE cell information;
and determining whether the terminal can successfully access the network based on the detection result.
In some embodiments, the processor 61 is further configured to execute, when running the computer program:
when an access request sent by the terminal is received within a preset time length, the terminal is determined to be capable of successfully accessing a network;
and allocating RRC resources for the terminal to complete the establishment of RRC connection.
In some embodiments, the processor 61 is further configured to execute, when running the computer program:
receiving a tracking area updating request sent by the terminal;
and completing the tracking area updating process and reestablishing the DRB for the terminal.
In some embodiments, the processor 61 is further configured to execute, when running the computer program:
acquiring a first time length; the first time length represents the time length from the moment that the signal strength of the second LTE cell is higher than that of the GSM cell to the moment that the terminal sends the access request;
acquiring a second time length; the second time length represents the time length from the time when the signal strength of the second LTE cell is higher than the signal strength of the GSM cell to the time when the terminal sends the access request again after the terminal receives the redirection message again and switches from the first LTE cell to the GSM cell again;
and determining whether the terminal can successfully return to the LTE network or not according to the second time length and the third time length.
In some embodiments, the processor 61 is further configured to execute, when running the computer program:
when the second duration is less than the first duration, determining that the terminal can successfully return to the LTE network;
alternatively, the first and second electrodes may be,
and when the second duration is greater than or equal to the first duration, determining that the terminal cannot successfully return to the LTE network.
In some embodiments, the processor 61 is further configured to execute, when running the computer program:
and when the access request sent by the terminal is not received within the preset time length, determining that the terminal can not successfully access the network.
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, 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, which can be executed by a processor 61 of the detection apparatus 60 to perform the steps of the foregoing method. The computer-readable storage medium may be a Memory such as 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 (FlashMemory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM).
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 detection method is applied to a process that a terminal executes network access by adopting a preset optimization scheme, and the method comprises the following steps:
sending a redirection message to the terminal; the redirection message is sent after the terminal is registered to a first Long Term Evolution (LTE) cell and the signal strength of a global system for mobile communications (GSM) cell is higher than that of the first LTE cell; the redirection message at least carries candidate LTE cell frequency point information reselected from a GSM network to an LTE network; the candidate LTE cell frequency point information is not consistent with LTE adjacent cell information configured in system information;
detecting whether an access request sent by the terminal is received; the access request is sent after the terminal is switched from the first LTE cell to the GSM cell, the frequency point information of the candidate LTE cell is determined not to be matched with the LTE adjacent cell information configured in the system information, and the signal intensity of the second LTE cell is selected to be higher than that of the GSM cell; the configured LTE neighboring cell information at least comprises the second LTE cell information;
and determining whether the terminal can successfully access the network based on the detection result.
2. The method of claim 1, wherein the determining whether the terminal can successfully access the network based on the detection result comprises:
when an access request sent by the terminal is received within a preset time length, the terminal is determined to be capable of successfully accessing a network;
and allocating Radio Resource Control (RRC) resources to the terminal to complete the establishment of RRC connection.
3. The method of claim 2, further comprising:
receiving a tracking area updating request sent by the terminal;
and completing the updating process of the tracking area, and reestablishing a data bearer DRB between the terminal and the base station for the terminal.
4. The method of claim 2, further comprising:
acquiring a first time length; the first time length represents the time length from the moment that the signal strength of the second LTE cell is higher than that of the GSM cell to the moment that the terminal sends the access request;
acquiring a second time length; the second time length represents the time length from the time when the signal strength of the second LTE cell is higher than the signal strength of the GSM cell to the time when the terminal sends the access request again after the terminal receives the redirection message again and switches from the first LTE cell to the GSM cell again;
and determining whether the terminal can successfully return to the LTE network or not according to the second time length and the third time length.
5. The method of claim 4, wherein the determining whether the terminal can successfully access the network according to the first duration and the second duration comprises:
when the second duration is less than the first duration, determining that the terminal can successfully return to the LTE network;
alternatively, the first and second electrodes may be,
and when the second duration is greater than or equal to the first duration, determining that the terminal cannot successfully return to the LTE network.
6. The method of claim 1, wherein the determining whether the terminal can successfully access the network based on the detection result comprises:
and when the access request sent by the terminal is not received within the preset time length, determining that the terminal can not successfully access the network.
7. The method according to any one of claims 1 to 6, further comprising:
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.
8. A detection device is applied to a process that a terminal executes network access by adopting a preset optimization scheme, and the device comprises:
an access processing unit, configured to send a redirection message to the terminal; the redirection message is sent after the terminal is registered to a first LTE cell and the signal strength of a GSM cell is higher than that of the first LTE cell; the redirection message at least carries candidate LTE cell frequency point information reselected from a GSM network to an LTE network; the candidate LTE cell frequency point information is not consistent with LTE adjacent cell information configured in system information;
a detection unit, configured to detect whether an access request sent by the terminal is received; the access request is sent after the terminal is switched from the first LTE cell to the GSM cell, the frequency point information of the candidate LTE cell is determined not to be matched with the LTE adjacent cell information configured in the system information, and the signal intensity of the second LTE cell is selected to be higher than that of the GSM cell; the configured LTE neighboring cell information at least comprises the second LTE cell information; and determining whether the terminal can successfully access the network based on the detection result.
9. A detection device is applied to a process that a terminal executes 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 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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