CN108024261B

CN108024261B - Method and device for detecting LTE network access result and computer storage medium

Info

Publication number: CN108024261B
Application number: CN201711242769.4A
Authority: CN
Inventors: 曾元清
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-11-30
Filing date: 2017-11-30
Publication date: 2021-05-04
Anticipated expiration: 2037-11-30
Also published as: CN108024261A

Abstract

The invention discloses a method and a device for detecting an LTE network access result and a computer storage medium, wherein the method comprises the following steps: receiving an attachment request sent by a terminal to an LTE first cell; sending attachment rejection information to the terminal and releasing RRC connection aiming at the terminal, wherein the attachment rejection information at least indicates that the terminal has no available cell; detecting whether an access request aiming at an LTE second cell sent by the terminal is received within a second time length, and determining whether the terminal is successfully accessed to the LTE network based on a detection result; wherein the LTE second cell and the LTE first cell encode TACs for different tracking areas.

Description

Method and device for detecting LTE network access result and computer storage medium

Technical Field

The present invention relates to network access technologies in the field of mobile communications, and in particular, to a method and an apparatus for detecting a Long Term Evolution (LTE) network access result, and a computer storage medium.

Background

With the increase of data service demand of users, higher requirements are put on the coverage range and quality of an LTE base station, so that co-station deployment of LTE/TDSCDMA/GSM based on the original system becomes a common practice. The deployment scheme can share part of network elements, the coupling degree of the multi-RAT system is high, unpredictable problems are often brought to the shared network elements of other RATs in the system optimization process of each RAT, and the problems can be solved well only by long-time optimization.

In order to solve the problems caused by the incompatible network deployment, various mobile phone manufacturers adopt various optimization means based on different modules to improve user experience, however, the occurrence of various abnormal conditions can probabilistically cause the failure of UE to access the LTE network, and how to effectively detect the LTE network access result in abnormal scenes is particularly necessary.

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 detect the condition that a terminal is accessed to an LTE second cell under the scene that a network refuses the terminal to access the LTE first cell of an LTE network, and finally determine the effectiveness and the rationality of an optimization scheme adopted by the terminal.

The method for detecting the LTE network access result provided by the embodiment of the invention is applied to the process that the terminal adopts the preset optimization scheme to execute the LTE network access, and comprises the following steps:

receiving an attachment request sent by a terminal to an LTE first cell;

sending attachment rejection information to the terminal and releasing RRC connection aiming at the terminal, wherein the attachment rejection information at least indicates that the terminal has no available cell;

detecting whether an access request aiming at an LTE second cell sent by the terminal is received within a second time length, and determining whether the terminal is successfully accessed to the LTE network based on a detection result; wherein the LTE second cell and the LTE first cell encode TACs for different tracking areas.

The embodiment of the invention provides a device for detecting a network access result, which comprises:

the terminal comprises a receiving unit, a sending unit and a receiving unit, wherein the receiving unit is used for receiving an attachment request sent by the terminal to an LTE first cell;

a sending unit, configured to send attach rejection information to the terminal, and release RRC connection for the terminal, where the attach rejection information at least indicates that the terminal has no available cell;

the detection unit is used for detecting whether an access request aiming at an LTE second cell sent by the terminal is received within a second time length, and determining whether the terminal is successfully accessed to the LTE network based on a detection result; wherein the LTE second cell and the LTE first cell encode TACs for different tracking areas.

The invention provides a device for detecting an LTE network access result, which is characterized in that the device is applied to a process that a terminal adopts a preset optimization scheme to execute the LTE network access, 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 configured to perform the steps of the above method when running the computer program.

The present invention provides a computer storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, performs the steps of the aforementioned method.

According to the method and the device for detecting the LTE network access result and the computer storage medium, the terminal receives the attachment request message sent by the terminal in the process of executing the LTE network access by adopting a preset optimization scheme; the first attach request is sent by the terminal after the terminal selects an LTE first cell; sending an attach reject message to the terminal; detecting whether an access request aiming at an LTE second cell sent by the terminal is received within a second time length, and determining whether the terminal is successfully accessed to the LTE network based on a detection result; wherein the LTE second cell and the LTE first cell encode TACs for different tracking areas. By adopting the scheme provided by the embodiment of the invention, the condition that the terminal is accessed to the LTE second cell can be detected under the scene that the network refuses the terminal to access the LTE first cell of the LTE network, and the effectiveness and the rationality of the optimization scheme adopted by the terminal are finally determined.

Drawings

Fig. 1 is a schematic flowchart 1 of a method for detecting an LTE network access result according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a SIB5 displayed via a computer display screen;

FIG. 3 is a schematic diagram of a SIB7 displayed via a computer display screen;

fig. 4 is a flowchart illustrating a method for detecting an LTE network access result according to an embodiment of the present invention, which is shown in fig. 2;

FIG. 5 is a schematic illustration of the cause value displayed via the computer display screen;

fig. 6 is a first schematic structural diagram of a device for detecting an LTE network access result according to an embodiment of the present invention;

fig. 7 is a structural configuration diagram of a device for detecting an LTE network access result according to an embodiment of the present invention.

Detailed Description

So that the manner in which the features and aspects of the embodiments of the present invention can be understood in detail, a more particular description of the embodiments of the invention, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings.

The embodiment of the invention provides a method for detecting an LTE (long term evolution) network access result, which is applied to a process that a terminal executes LTE network access by adopting a preset optimization scheme, and as shown in figure 1, the method comprises the following steps:

step 101: receiving an attachment request sent by a terminal to an LTE first cell;

step 102: sending attachment rejection information to the terminal and releasing RRC connection aiming at the terminal, wherein the attachment rejection information at least indicates that the terminal has no available cell;

step 103: detecting whether an access request aiming at an LTE second cell sent by the terminal is received within a second time length, and determining whether the terminal is successfully accessed to the LTE network based on a detection result; wherein the LTE second cell and the LTE first cell encode TACs for different tracking areas.

This embodiment may be implemented in a device capable of performing simulation of a network environment, where the device of this embodiment may simulate at least one network, and therefore, before the step 101 is executed, a simulated network environment needs to be constructed, and the specific method further includes:

establishing a simulation network environment, wherein the simulation network environment at least comprises the following network structures: an LTE network, a TDSCDMA network, a GSM network;

the system message block SIB7 of the LTE first cell and the LTE second cell of the LTE network is configured with adjacent GSM cell information, and the adjacent LTE cell information is configured in the GSM system message SI; and the LTE first cell, the TDSCDMA cell and the GSM cell are configured with the same public land mobile network PLMN and the same TAC;

correspondingly, the LTE network interacting with the terminal is the LTE network in the simulated network environment.

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.

For example, as described with reference to fig. 2 and 3, the simulation network constructs a network environment including 2 cells, which are TDD-LTE/1 TDSCDMA/1 GSM cell respectively;

GSM neighbor Cell information is configured in SIB7 of LTE Cell0 (i.e., LTE first Cell) and Cell1(LTE second Cell), for example, SIB 7with GSM N-Cell shown in fig. 3 indicates GSM as a neighbor Cell, and LTE neighbor Cell information is configured in GSM SI. LTE Cell0, TDSCDMA, GSM cells are all configured as the same PLMN, the same TAC code. Also, LTE Cell0 and LTE Cell1 are configured as different TAC codes.

The abnormal scene of the application embodiment is as follows: the terminal fails to access in a specific cell EPS, and the network issues abnormal cause values in the process of rejecting the EPS access, so that the UE cannot access the whole LTE network.

In step 101, the attach request sent by the terminal is sent after the terminal selects 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, before the receiving the attach request sent by the terminal to the LTE first cell, the method further includes: and when detecting an RRC connection request sent by the terminal when the terminal is registered in the first LTE cell, determining that the terminal completes an RRC connection process.

That is, before the terminal performs an attach procedure with the network side, the terminal needs to perform an access procedure with the network side.

More specifically, the 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.

Then, step 102 is executed to send an attach reject message to the terminal and release RRC connection for the terminal, where the attach reject message at least indicates that the terminal has no available cell;

here, in actual application, after receiving an attach request message sent by a terminal, an LTE base station forwards the attach request message to an MME, and the MME and an HSS perform attach related processing on the terminal in an LTE network, including authentication, location management, and the like, so as to complete registration in the LTE network.

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.

In an embodiment, an attach reject message is encapsulated, 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;

the cause value of the attach reject in the attach reject message is used to trigger the terminal to perform an attach procedure based on the GSM cell. The cause value in this embodiment may be a cause value indicating that the terminal has no usable cell, and a specific numerical value is not limited in this embodiment.

That is to say, the terminal determines that there is no corresponding cell in the tracking area corresponding to the TAC of the first LTE cell according to the cause value of the attach reject in the attach reject message.

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.

After sending the attachment rejection information to the terminal device, triggering the terminal to continue making an access request attempt in the LTE first cell, that is:

detecting whether an access request attempt of the terminal for a first LTE cell is received in a first time period.

When the terminal does not receive an access request attempt of the terminal for a first LTE cell within a first time length;

and after the first time length is finished, detecting whether an access request which is sent by the terminal and aims at the LTE second cell is received in a second time length.

Here, when detecting an access request initiated by the terminal for the LTE second cell within the second duration, it is stated that the optimization scheme is successful, and at this time, the bearer of a default Evolved Packet System (EPS) is established in a coordinated manner, so as to verify that the user plane data transmission is smooth.

Of course, when the terminal does not receive the second attach request message sent by the terminal within the second duration, it indicates that the optimization scheme fails.

In practical application, the first time length and the second 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 attempt request to the first LTE cell is detected; and setting a second timer, and detecting whether the terminal receives an 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 an LTE second 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.

In the method provided by the embodiment of the invention, the terminal receives the attachment request message sent by the terminal in the process of executing the LTE network access by adopting a preset optimization scheme; the first attach request is sent by the terminal after the terminal selects an LTE first cell; sending an attach reject message to the terminal; detecting whether an access request aiming at an LTE second cell sent by the terminal is received within a second time length, and determining whether the terminal is successfully accessed to the LTE network based on a detection result; wherein the LTE second cell and the LTE first cell encode TACs for different tracking areas. By adopting the scheme provided by the embodiment of the invention, the condition that the terminal is accessed to the LTE second cell can be detected under the scene that the network refuses the terminal to access the LTE first cell of the LTE network, and the effectiveness and the 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.

As shown in fig. 4, the method for detecting a network access result according to the embodiment of the present application includes the following steps:

step 401: and triggering the UE to start a registration process to an LTE Cell0 Cell, and completing an RRCConnectionSetup process after the simulation system receives an RRC Connection Request sent by the UE to the LTE Cell.

Step 402: after receiving an Attach Request sent to the LTE Cell0, the network sends attachment rejection information to the terminal; namely simulating an abnormal rejection situation: attach Reject, where the cause value is No able cells in tracking area. The RRC connection is then released. As shown in fig. 5, the reason for rejecting access is sent to the terminal through signaling, and is "no available cells in tracking area (15)", where a cause value is indicated to be 15, and the reason is that there is no suitable cell.

Step 403: the simulation system monitors the behavior of the UE, continues Timer1, and detects: the UE abandons the access request attempt on LTE Cell 0.

Step 404: the simulation system monitors the behavior of the UE, and after Timer1 and before Timer2, detects: the UE starts initiating an access request on the LTE cell1 cell.

If the optimization scheme passes, the optimization scheme is successful, otherwise, the optimization scheme fails; if the user interface data is successful, the simulation system establishes defaultEPSBearer in a matching way, and verifies that the user interface data is smooth.

Fig. 6 is a schematic structural composition diagram of a device for detecting a network access result according to an embodiment of the present invention, where the device includes:

a receiving unit 61, configured to receive an attach request sent by a terminal to an LTE first cell;

a sending unit 62, configured to send attach rejection information to the terminal, and release RRC connection for the terminal, where the attach rejection information at least indicates that the terminal has no available cell;

a detecting unit 63, configured to detect whether an access request for an LTE second cell sent by the terminal is received within a second duration, and determine whether the terminal successfully accesses the LTE network based on a detection result; wherein the LTE second cell and the LTE first cell encode TACs for different tracking areas.

This embodiment may be implemented in an apparatus capable of performing network environment simulation, where the apparatus may simulate at least one network, and therefore the apparatus further includes:

a simulation unit 64, configured to establish a simulated network environment, where the simulated network environment at least includes the following network structures: an LTE network, a TDSCDMA network, a GSM network;

GSM neighbor Cell information is configured in SIB7 of LTE Cell0 (i.e., LTE first Cell) and Cell1(LTE second Cell), for example, SIB 7with GSM N-Cell shown in fig. 3 indicates GSM as a neighbor Cell, and LTE neighbor Cell information is configured in GSM SI. LTE Cell0, TDSCDMA, GSM cells are all configured as the same PLMN, the same TAC code. Also, LTE Cell0 and LTE Cell1 are configured with different TAC codes.

The attach request sent by the terminal is sent after the terminal selects 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, before receiving an attach request sent by a terminal to an LTE first cell, when detecting an RRC connection request sent by the terminal when registering in the LTE first cell, the terminal is determined to complete an RRC connection procedure.

Then, a sending unit, configured to send an attach rejection message to the terminal and release RRC connection for the terminal, where the attach rejection message at least indicates that the terminal has no available cell;

a detecting unit, configured to detect whether an access request attempt of the terminal for the LTE first cell is received within a first time period.

Wherein, the duration of the timer can be set according to the requirement.

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 detecting the GSM network access result, and in practical applications, the processing may be distributed to different program modules according to needs, that is, the internal structure of the apparatus is divided into different program modules to complete all or part of the processing described above. In addition, the network access result detection apparatus and the network access result detection method provided in the foregoing embodiments belong to the same concept, and specific implementation processes thereof are described in detail in the method embodiments and are not described herein again.

Based on the hardware implementation of each unit in the detection apparatus for network access result, in order to implement the method provided in the embodiment of the present invention, an embodiment of the present invention further provides a detection apparatus for network access result, as shown in fig. 7, where the apparatus 70 includes: a processor 71 and a memory 72 for storing computer programs capable of running on the processor,

wherein, when the processor 71 is configured to run the computer program, the following steps are executed:

receiving an attachment request sent by a terminal to an LTE first cell; sending attachment rejection information to the terminal and releasing RRC connection aiming at the terminal, wherein the attachment rejection information at least indicates that the terminal has no available cell; detecting whether an access request aiming at an LTE second cell sent by the terminal is received within a second time length, and determining whether the terminal is successfully accessed to the LTE network based on a detection result; wherein the LTE second cell and the LTE first cell encode TACs for different tracking areas.

In addition, when the processor 71 is configured to run the computer program, all the steps in the foregoing method may be executed, which is not described herein again.

Of course, in practical applications, the apparatus may further include a communication interface 73, as shown in fig. 7. The various components in the device 70 are coupled together by a bus system. It will be appreciated that the bus system 73 is used to enable communications among the components. The bus system includes a power bus, a control bus, and a status signal bus in addition to a data bus.

In an exemplary embodiment, an embodiment of the present invention further provides a computer storage medium, which is a computer readable storage medium, for example, a memory including a computer program, where the computer program is executable by a processor of an apparatus 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

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 an attachment request sent by a terminal to an LTE first cell;

2. The method of claim 1, wherein the receiving terminal is configured to, prior to the attach request sent to the LTE first cell, further comprise:

and when detecting an RRC connection request sent by the terminal when the terminal is registered in the first LTE cell, determining that the terminal completes an RRC connection process.

3. The method of claim 1, wherein before the detecting whether the access request for the second cell of LTE from the terminal is received within the second time period, the method further comprises:

4. The method of claim 3, wherein the detecting whether the terminal receives an access request attempt for the first LTE cell within a first time period further comprises:

5. The method according to any one of claims 1 to 4, further comprising:

6. An apparatus for detecting a network access result, the apparatus comprising:

7. The apparatus according to claim 6, wherein the detecting unit is configured to determine that the terminal completes the RRC connection procedure when detecting the RRC connection request sent by the terminal when registering in the first LTE cell.

8. The apparatus of claim 6, wherein the detecting unit is configured to detect whether an access request attempt of the terminal for a first LTE cell is received within a first time period.

9. The apparatus of claim 8, wherein the detecting unit is configured to not receive an access request attempt of the terminal for a first LTE cell within a first duration; and after the first time length is finished, detecting whether an access request which is sent by the terminal and aims at the LTE second cell is received in a second time length.

10. The apparatus of any one of claims 6 to 9, further comprising:

the simulation unit is used for establishing a simulation network environment, and the simulation network environment at least comprises the following network structures: an LTE network, a TDSCDMA network, a GSM network;

11. 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 5 when running the computer program.

12. 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 according to any one of claims 1 to 5.