CN112543464A

CN112543464A - Network returning method and device and computing equipment

Info

Publication number: CN112543464A
Application number: CN201910901295.2A
Authority: CN
Inventors: 耿波; 何义; 陈小奎; 王佳木; 邓也; 戴明艳; 李阳; 孙振
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Group Anhui Co Ltd
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Group Anhui Co Ltd
Priority date: 2019-09-23
Filing date: 2019-09-23
Publication date: 2021-03-23
Anticipated expiration: 2039-09-23
Also published as: CN112543464B

Abstract

The embodiment of the invention relates to the technical field of wireless communication, and discloses a network returning method, a network returning device and computing equipment. The method comprises the following steps: detecting the state of a cell by the evolution type base station; when the state of the cell is changed from an unavailable state to an available state, the evolved node B acquires a modulo-3 remainder value of the cell; and the evolved node B starts the cell according to the corresponding relation between the modulo-3 remainder of the cell and the preset starting waiting time. Through the mode, the embodiment of the invention can homogenize the signaling, thereby relieving signaling congestion.

Description

Network returning method and device and computing equipment

Technical Field

The embodiment of the invention relates to the technical field of wireless communication, in particular to a network returning method, a network returning device and computing equipment.

Background

In the current network operation process, a large-area network disconnection condition (such as a network disconnection condition caused by transmission equipment, circuit abnormality, core network abnormality and the like) sometimes occurs, after the problem occurs, the side of an evolved node B (eNodeB, eNB) judges that the cell state is unavailable, and when the state reaches a certain time (the current network is generally 90 seconds), an alarm is generated; when finding that all Long Term Evolution (LTE) cells are in an unavailable state, the terminal side actively resides in the GSM network and performs an idle reselection frequency scanning action, and once the LTE cells are available, the terminal side returns to the LTE network for the first time.

At present, after a network problem is recovered, because communication recovery of all LTE cells is almost at the same time point, a large number of terminals simultaneously initiate network return requests from different LTE cells, which causes repeated network impact in the same time period, thereby causing signaling congestion.

Disclosure of Invention

In view of the foregoing problems, embodiments of the present invention provide a network returning method, an apparatus, and a computing device, which can uniformize signaling, thereby alleviating signaling congestion.

According to an aspect of an embodiment of the present invention, there is provided a network return method, including: detecting the state of a cell by the evolution type base station; when the state of the cell is changed from an unavailable state to an available state, the evolved node B acquires a modulo-3 remainder value of the cell; and the evolved node B starts the cell according to the corresponding relation between the modulo-3 remainder of the cell and the preset starting waiting time.

In an optional manner, the preset opening waiting time includes a first waiting time, a second waiting time and a third waiting time; opening the cell according to the corresponding relationship between the modulo-3 remainder of the cell and a preset opening waiting time, further comprising: if the modulo-3 residual value of the cell is 0, starting the cell after the first waiting time; if the modulo-3 remainder value of the cell is 1, starting the cell after the second waiting time; and if the modulo-3 residual value of the cell is 2, starting the cell after the third waiting time.

In an optional manner, the detecting the state of the cell further includes: judging whether all Stream Control Transmission Protocol (SCTP) links bearing the S1interface are abnormal or not; if so, the state of the cell is an unavailable state; and if not, the state of the cell is an available state.

In an optional manner, the detecting the state of the cell further includes: and detecting the state of the cell at preset time intervals.

In an optional manner, the method further comprises: a mobile management entity receives network returning requests sent by a plurality of terminals, wherein the network returning requests comprise network returning information; the mobility management entity judges whether the terminal is a terminal requesting to return to an LTE network from a GSM network or not according to the network returning information; if so, the mobility management entity determines the terminal which needs to be refused to return to the network request from the terminal which returns to the LTE network from the GSM network; and the mobile management entity returns a refusing instruction to the terminal refusing the network returning request, wherein the refusing instruction comprises delay connection time, so that the terminal receiving the refusing instruction sends the network returning request again according to the delay connection time.

In an alternative, the delay connection time is a timer time or a random time obtained by multiplying a random number by the timer time.

In an optional manner, the determining, from among the terminals returning from the GSM network to the LTE network, a terminal that needs to be denied a network return request further includes: judging whether the receiving quantity of the network returning requests is larger than a preset processing threshold value or not within preset processing time; if so, determining the terminal corresponding to the partial network returning request exceeding the preset processing threshold as the terminal needing to be refused the network returning request.

According to another aspect of the embodiments of the present invention, there is provided a network returning apparatus, including: an evolved base station; the evolution type base station comprises a state detection module, a residual value acquisition module and a starting module; the state detection module is used for detecting the state of the cell; the residual value acquisition module is used for acquiring a residual value after modulo 3 of the cell when the state of the cell is changed from an unavailable state to an available state; and the starting module is used for starting the cell according to the corresponding relation between the modulo-3 remainder of the cell and the preset starting waiting time.

According to still another aspect of an embodiment of the present invention, there is provided a computing device including: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus; the memory is configured to store at least one executable instruction that causes the processor to perform the operations of the network return method as described above.

According to another aspect of the embodiments of the present invention, there is provided a computer storage medium having at least one executable instruction stored therein, the executable instruction causing a processor to execute the network returning method as described above.

The embodiment of the invention detects the state of the cell at the side of the evolution base station, acquires the residual value after the module 3 of the cell when the state of the cell is changed from the unavailable state to the available state, and opens the cell according to the corresponding relation between the residual value after the module 3 of the cell and the preset opening waiting time, so that the cell can be opened in batch, and the terminal can initiate a network return request in batch, thereby homogenizing the signaling and relieving the signaling congestion.

The foregoing description is only an overview of the technical solutions of the embodiments of the present invention, and the embodiments of the present invention can be implemented according to the content of the description in order to make the technical means of the embodiments of the present invention more clearly understood, and the detailed description of the present invention is provided below in order to make the foregoing and other objects, features, and advantages of the embodiments of the present invention more clearly understandable.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a flowchart illustrating a network returning method according to an embodiment of the present invention;

fig. 2 is a flowchart illustrating a network returning method according to another embodiment of the present invention;

fig. 3 is a schematic structural diagram of a web returning device provided in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a computing device provided in an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

A Long Term Evolution (LTE) project is the Evolution of 3G (Third Generation mobile Communication), in an LTE system, an Evolved Packet Core (EPC) includes a Mobility Management Entity (MME), an Evolved base station (eNodeB, eNB) is directly connected to the EPC, and an S1interface exists between the eNB and the MME for implementing data transmission and signaling interaction between the eNB and the MME.

When large-area network breaking occurs, the eNB side judges that the cell state is an unavailable state, and when the state reaches a certain time length, an alarm is generated. When the terminal finds that all LTE cells are in an unavailable state, the terminal may actively camp on the GSM network, at this time, the terminal does not turn off the radio frequency unit, the radio frequency unit continues to perform a frequency reselection scanning action, and once the LTE cell is turned on, the terminal immediately returns to the LTE network (usually, the terminal sends TRACKING AREA UPDATE REQUEST message to the MME to trigger the TAU procedure).

Because the communication recovery of all cells is almost the same time point, a large number of terminals initiate a large number of LTE network return signaling requests TAU procedures from different LTE cells at the same time, thereby easily causing signaling congestion.

Based on this, the embodiments of the present invention provide a network returning method, an apparatus, and a computing device, which can homogenize signaling, thereby alleviating signaling congestion.

Fig. 1 shows a flowchart of a network returning method according to an embodiment of the present invention. The method may be applied in a computing device, such as a server in a communication network. As shown in fig. 1, the method comprises the steps of:

step 110, the enb detects the state of the cell.

The eNB may be a module on the eNB side or a device on the eNB side. The cell refers to an LTE cell corresponding to an eNB, for example, one eNB corresponds to 3 LTE cells. The eNB detects the state of the LTE cell, specifically: the state of the LTE cell is detected at intervals of a preset time, for example, assuming that the preset time is 3 seconds, the eNB detects the state of the LTE cell at intervals of 3 seconds.

Since the S1interface exists between the eNB and the MME, whether the eNB and the MME are normally connected can be known by detecting the state of the S1 interface. Then, the detecting the state of the LTE cell may be performed by a transmission abnormality determining method, which specifically includes: judging whether all Stream Control Transmission Protocol (SCTP) links bearing the S1interface are abnormal or not; if so, the state of the cell is an unavailable state; if not, the state of the cell is an available state. For example, if the radio frequency module of the eNB detects that all SCTP links bearing the S1Interface (where the number of links is not less than 2, and the SCTP links that do not include the S1Interface used for the IOPS characteristic are all abnormal, and the abnormal time reaches a certain time period (for example, 90 seconds), it is determined that the state of the cell is an unavailable state, and otherwise, it is determined that the state of the cell is an available state.

And step 120, when the state of the cell is changed from the unavailable state to the available state, the evolved node b acquires a modulo-3 remainder of the cell.

The eNB continuously detects the state of the LTE cell at intervals of preset time, and when the eNB detects that the state of the LTE cell is an unavailable state and detects that the state of the LTE cell is an available state in a later period of time, the eNB acquires that the state of the cell is changed from the unavailable state to the available state.

In the LTE system, a terminal distinguishes wireless signals of different cells by Physical Cell Identity (PCI). The LTE system provides 504 PCIs which are formed by a primary synchronization sequence (PSS ═ 0-2) and a secondary synchronization sequence (SSS ═ 0-167) together, and the PCIs are 3 ═ SSS + PSS. The remainder modulo 3 is the remainder of dividing PCI by 3, including 0, 1, and 2.

Step 130, the enb starts the cell according to the corresponding relationship between the modulo-3 remainder of the cell and the preset start waiting time.

The preset opening waiting time comprises a first waiting time, a second waiting time and a third waiting time. The modulo-3 residuals 0, 1, 2 correspond to the first latency, the second latency, and the third latency, respectively. Different timers can be set on the eNB side to open the cell according to different preset opening waiting times.

Wherein, step 130 specifically includes:

step 131, if the modulo-3 residual value of the cell is 0, starting the cell after a first waiting time;

step 132, if the modulo-3 remaining value of the cell is 1, starting the cell after a second waiting time;

and step 133, if the modulo 3 residual value of the cell is 2, starting the cell after the third waiting time.

Optionally, the first waiting time may be 0 second, the second waiting time may be 3 seconds, and the third waiting time may be 6 seconds, and then for the cell with the modulo-3 remainder value of 0, when the state of the cell becomes the available state, the cell is immediately started; for the cell with the remainder value after modulo 3 being 1, when the state of the cell is changed into the usable state, the cell is started after waiting for 3 seconds; and for the cell with the modulo-3 remainder value of 2, when the state of the cell is changed into the usable state, the cell is started after waiting for 6 seconds.

The MME side of the current network has a flow control function, so that the MME processes a certain amount of TAU REQ every minute, and when the flow control function is larger than a threshold, the MME side ignores the request and does not respond to the TAU REQ. And the terminal starts a T3430 timer after initiating the TAU REQ, and once the terminal does not receive the TAU ACCEPT within the time set by the T3430 timer, the terminal terminates the TAU procedure and stops any ongoing user data transmission. If the tracking area updating attribute counter is not equal to 5, the value of the counter is increased, and then the processing (described below) is performed according to the value of the tracking area updating attribute counter. The terminal will also release the NAS signaling connection locally.

Wherein, when the tracking area updating attempt counter is less than 5:

if the TAI of the current serving cell is in the TAI list and the EPS update status is equal to EU1 UPDATED, the terminal keeps the EPS update status as EU1 UPDATED and switches to EMM-REGISTERED. The terminal starts a timer T3411, and when T3411 times out, the terminal will trigger the TAU procedure again.

If the TAI of the current serving cell is NOT in the TAI list, or the EPS UPDATE status is NOT equal TO EU1 UPDATE, the terminal starts a timer T3411, sets the EPS UPDATE status TO EU2 NOT UPDATE, and transitions TO an EMM-registered. When T3411 times out, the terminal will trigger TAU procedure again.

If the terminal supports the A/Gb mode or the Iu mode, under abnormal conditions, when the normal or periodic routing area updating procedure fails, the routing area updating event counter is less than 5, and the GPRS update status is not equal to GU1 UPDATED, the terminal also processes the GPRS update status.

Wherein, when the tracking area updating attempt counter is equal to 5: the terminal starts a timer T3402, sets the EPS Update Status TO EU1 UPDATED, and enters an EMM-REGISTERED.ATTEMPTING-TO-UPDATE-MM state. When T3402 times out, the terminal working in CS/PS mode 2 triggers the combined TAU procedure defined as "combined TA/LA updating with IMSI attach" again. A terminal operating in CS/PS mode 1 selects either GERAN or UTRAN radio access technology and proceeds to execute the appropriate MM or GMM specific procedures.

Since the T3430(15 seconds) and T3411(10 seconds) timers are allocated on the non-network side and are all fixed inside the LTE terminal, once communication is recovered, the TAU REQ initiated by the terminal, the MME side does not respond to the request (does not reply, does not reply to the TAU REJ), the terminal that does not flow control through the MME returns to the LTE network for the first time and definitely fails, and the terminal that does not flow control through the MME in the later period initiates the TAU REQ for the second time when the T3411 timer arrives because the tracking area updating event counter is equal to 1, but such terminals are also initiated at a uniform time point and cause a second round of impact on the network. There is certainly a part of terminals that have no way to flow control through MME until the tracking area updating event counter equals 5, initiating the last TAU REQ.

The CS/PS mode 2 terminal has the opportunity to perform TAU REQ to return to the LTE network after the T3402 timer is overtime. And the CS/PS mode 1 terminal can actively close the LTE radio frequency unit and exists in the network in the form of a GSM terminal.

Even if the TAU REQ is first flow-controlled by the MME, the TAU REQ cannot be returned to the LTE network, because the large area LTE terminal cannot perform the TAU REQ with the MME within the time period T3412 after being disconnected from the GSM, the MME starts the unreachable timer (now the network is 4 minutes) after the time period T3412 expires, and after the time period T3412 expires, the network side does not actively search for the terminal but waits for the terminal to report a signaling, once the unreachable timer expires, the MME initiates implicit detach, and detach the terminal without notifying the LTE terminal.

If the user reaches a certain time in the GSM network, the LTE terminal is implicitly detached, the LTE terminal does not know that the LTE terminal is implicitly detached, and the LTE terminal initiates the TAU REQ to the MME when waiting for the recovery of the LTE network. Even if after the MME flow control, the MME knows that the terminal has detached the ATTACH, it replies TAU REJ, carrying the cause (#10 explicit detach), and the terminal immediately initiates ATTACH according to the MME instruction, and if there are too many users, it also causes a sudden increase of ATTACH signaling on the network side, causes the MME to flow control the ATTACH signaling, and causes the MME not to respond to ATTACH message, and the MME will be controlled by the timers T3410 and T3411 at the later stage, specifically controlling the same TAU REQ process, which is not written in detail herein.

In the prior art, network impact when an LTE network is recovered completely depending on MME side flow control and a terminal side curing timer, which may cause a large number of terminals to repeatedly impact the network at the same time point and in the same time period in the initial period of the LTE network recovery, the final impact result may cause a large number of TAU REQ not to respond and a part of CS/PS mode 1 to turn off an LTE radio frequency unit, and finally exist in the LTE network in the form of a GSM terminal, and unless a user actively ats, the terminal may not actively turn on the LTE radio frequency unit.

Based on this, fig. 2 shows a flowchart of a network returning method according to another embodiment of the present invention. As shown in fig. 2, the method further comprises the steps of:

step 140, the mobility management entity receives network returning requests sent by the terminals, wherein the network returning requests include network returning information.

When the terminal finds that all LTE cells are in an unavailable state, the terminal can actively reside in a GSM network, the radio frequency unit is not closed at the moment, the radio frequency unit continues to perform frequency reselection scanning actions, and once the LTE cells are opened, the terminal immediately sends a network returning request to an MME. The network return request is a request instruction sent by the terminal to the MME for returning to the LTE network, and may be, for example, a TAU REQ message, so as to start a TAU procedure.

And 150, the mobility management entity judges whether the terminal is the terminal requesting to return to the LTE network from the GSM network or not according to the network returning information.

The network return request includes network return information, the network return information carries a state of the terminal, for example, the network return information includes GUTI information, and then according to the network return information, whether the terminal is a terminal requesting to return to the LTE network from the GSM network is determined, and the specific implementation manner may be: and judging whether the Old GUTI type is native GUTI or mapped GUTI, if the Old GUTI type is native GUTI, the terminal is not the terminal requesting to return to the LTE network from the GSM network, and if the Old GUTI type is mapped GUTI, the terminal is the terminal requesting to return to the LTE network from the GSM network.

It should be noted that, for the subsequent version of LTE R10, the version adopts an echo Indicator scheme, that is, explicit network parameters are adopted to indicate whether the GUTI in ATTACH/TAU is the original GUTI or the mapped GUTI, and the terminal provides an explicit parameter (Old GUTI type) at the NAS layer as the native GUTI or the mapped GUTI, so that the MME can know whether the Old GUTI type is the original or the mapped, thereby distinguishing the source node for addressing, and enabling the MME to determine whether the TAU returns to the LTE network for the GSM network.

And step 160, if yes, the mobility management entity determines the terminal which needs to be refused to return the network request from the terminal which returns to the LTE network from the GSM network.

Due to the flow control function of the MME, for a large number of terminals which send network returning requests and return to the LTE network from the GSM network, the MME responds to the network returning requests of a part of terminals and rejects the network returning requests of a part of terminals. Step 160 specifically includes:

step 161, in a preset processing time, judging whether the receiving number of the network returning requests is greater than a preset processing threshold value;

and step 162, if yes, determining the terminal corresponding to the partial network returning request exceeding the preset processing threshold as the terminal needing to be refused to return the network request.

For example, assuming that the preset processing time is every minute, and the preset processing threshold is 300, if the MME receives network return requests sent by 500 terminals in one minute, and the reception number of the network return requests is greater than the preset processing threshold, the MME responds to the first 300 network return requests, and determines the terminals corresponding to the last 200 network return requests as the terminals that need to be rejected.

Step 170, the mobility management entity returns a rejection instruction to the terminal that is rejected to return the network request, where the rejection instruction includes the delay connection time, so that the terminal that receives the rejection instruction sends the network return request again according to the delay connection time.

The reject instruction is an instruction sent by the MME to the terminal for rejecting the network return request, for example, a TAU REJ message. The rejection instruction comprises delayed connection time, the delayed connection time is timer time or random time obtained by multiplying random number by the timer time, the terminal sends a network return request again according to the timer time or the random time, and the terminal can be prevented from repeatedly impacting the network in the same time period, so that signaling congestion is avoided.

The specific implementation of step 170 may be: newly adding 1bit in the TAU REJ message for generating a random number at the terminal side to act on a T3411 timer so as to ensure that an ATTACH attachment process is generated after the rejected terminal has a random period, and further prevent ATTACH attachment congestion after large-scale LTE communication is recovered.

Specifically, 1bit (0 or 1, defined as T3411random) is added to the TAU REJ message to act on the T3411 weight. When the bit is set to 0, if the terminal receives a TAU REJ message of #10im critical decoded, the terminal still starts an ATTACH procedure according to the timer time of T3411 after T3411 times out; when the bit is set to 1, if the terminal receives a TAU REJ message of #10im sent, the terminal generates a random number between 0 and 1, and initiates an ATTACH procedure after the time of the random number timer is over. By the method, the terminal is ensured not to initiate the ATTACH flow again at the same time point in the later period.

It should be noted that, when it is determined that the terminal is a terminal requesting to return from the GSM network to the LTE network, but it is found that the terminal has been Implicitly detached (the terminal has detached from the LTE network for more than T3412+ unreachable time), the MEE feeds back TAU req (#10 invalid detected) to the terminal, the terminal performs different actions according to the received error code, and when the error code is #10 invalid detected, the terminal deletes the peer PLMNs list and enters EMM-registered. The terminal also deletes any mapped EPS security context and then executes a new attach procedure. If the terminal supports the A/Gb mode or the Iu mode, the terminal also processes the GMM state when the combined routing area updating procedure is rejected due to the GMM Cause with the same value. The terminal in CS/PS mode 1or CS/PS mode 2 is still IMSI registered non-EPS service.

In the embodiment of the invention, a network returning request sent by a plurality of terminals is received through an MME, and the network returning request comprises network returning information; judging whether the terminal is a terminal requesting to return to the LTE network from the GSM network or not according to the network returning information; if so, determining a terminal which needs to be refused to return to the network request from terminals which return to the LTE network from the GSM network; and returning a rejection instruction to the terminal which is rejected to return the network request, wherein the rejection instruction comprises delay connection time, so that the terminal which receives the rejection instruction sends the network return request again according to the delay connection time, the rejected terminal can generate an ATTACH attachment process at different times, and the congestion caused by the ATTACH attachment at the same time of all terminals after the large-scale LTE communication is recovered is prevented, so that the signaling is homogenized, and the signaling congestion is relieved.

Fig. 3 shows a schematic structural diagram of a network annotation returning device provided by an embodiment of the present invention. As shown in fig. 3, the apparatus 200 includes: an evolved base station 210. The enb 210 includes a status detection module 211, a residual value obtaining module 212, and a start module 213.

The state detection module 211 is configured to detect a state of a cell; the residual value obtaining module 212 is configured to obtain a modulo-3 residual value of the cell when the state of the cell is changed from the unavailable state to the available state; the starting module 213 is configured to start the cell according to a corresponding relationship between the modulo-3 remainder of the cell and a preset starting waiting time.

In an optional manner, the state detection module 211 is specifically configured to: judging whether all Stream Control Transmission Protocol (SCTP) links bearing the S1interface are abnormal or not; if so, the state of the cell is an unavailable state; and if not, the state of the cell is an available state.

In an optional manner, the state detection module 211 is specifically configured to: and detecting the state of the cell at preset time intervals.

In an optional manner, the preset opening waiting time includes a first waiting time, a second waiting time and a third waiting time; the start module 213 is specifically configured to: if the modulo-3 residual value of the cell is 0, starting the cell after the first waiting time; if the modulo-3 remainder value of the cell is 1, starting the cell after the second waiting time; and if the modulo-3 residual value of the cell is 2, starting the cell after the third waiting time.

In an optional manner, the apparatus 200 further comprises: a mobility management entity 220. The mobility management entity 220 requests the receiving module 221, the judging module 222, the determining module 223 and the rejecting module 224.

The request receiving module 221 is configured to receive network returning requests sent by a plurality of terminals, where the network returning requests include network returning information; the judging module 222 is configured to judge whether the terminal is a terminal that requests to return to the LTE network from the GSM network according to the network return information; the determining module 223 is configured to determine, if yes, a terminal that needs to be denied a network return request from terminals that return to the LTE network from the GSM network; the rejecting module 224 is configured to return a rejecting instruction to the terminal that is rejected the network returning request, where the rejecting instruction includes a delay connection time, so that the terminal that receives the rejecting instruction sends the network returning request again according to the delay connection time.

In an optional manner, the determining module 223 is specifically configured to: judging whether the receiving quantity of the network returning requests is larger than a preset processing threshold value or not within preset processing time; if so, determining the terminal corresponding to the partial network returning request exceeding the preset processing threshold as the terminal needing to be refused the network returning request.

It should be noted that the network returning device provided in the embodiment of the present invention is a device capable of executing the network returning method, and all embodiments of the network returning method are applicable to the device and can achieve the same or similar beneficial effects.

An embodiment of the present invention provides a computer storage medium, where at least one executable instruction is stored in the storage medium, and the executable instruction causes a processor to execute the network returning method in any of the above method embodiments.

An embodiment of the present invention provides a computer program product, which includes a computer program stored on a computer storage medium, where the computer program includes program instructions, and when the program instructions are executed by a computer, the computer is caused to execute the network returning method in any of the above method embodiments.

Fig. 4 is a schematic structural diagram of a computing device according to an embodiment of the present invention, and the specific embodiment of the present invention does not limit the specific implementation of the computing device.

As shown in fig. 4, the computing device may include: a processor (processor)302, a communication Interface 304, a memory 306, and a communication bus 308.

Wherein: the processor 302, communication interface 304, and memory 306 communicate with each other via a communication bus 308. A communication interface 304 for communicating with network elements of other devices, such as clients or other servers. The processor 302 is configured to execute the program 310, and may specifically execute the network returning method in any of the method embodiments described above.

In particular, program 310 may include program code comprising computer operating instructions.

The processor 302 may be a central processing unit CPU, or an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement an embodiment of the present invention. The computing device includes one or more processors, which may be the same type of processor, such as one or more CPUs; or may be different types of processors such as one or more CPUs and one or more ASICs.

And a memory 306 for storing a program 310. Memory 306 may comprise high-speed RAM memory and may also include non-volatile memory (non-volatile memory), such as at least one disk memory.

The algorithms or displays presented herein are not inherently related to any particular computer, virtual system, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. In addition, embodiments of the present invention are not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the embodiments of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.

Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names. The steps in the above embodiments should not be construed as limiting the order of execution unless specified otherwise.

Claims

1. A method for returning to a network, the method comprising:

detecting the state of a cell by the evolution type base station;

when the state of the cell is changed from an unavailable state to an available state, the evolved node B acquires a modulo-3 remainder value of the cell;

and the evolved node B starts the cell according to the corresponding relation between the modulo-3 remainder of the cell and the preset starting waiting time.

2. The method of claim 1, wherein the preset on wait time comprises a first wait time, a second wait time, and a third wait time;

opening the cell according to the corresponding relationship between the modulo-3 remainder of the cell and a preset opening waiting time, further comprising:

if the modulo-3 residual value of the cell is 0, starting the cell after the first waiting time;

if the modulo-3 remainder value of the cell is 1, starting the cell after the second waiting time;

and if the modulo-3 residual value of the cell is 2, starting the cell after the third waiting time.

3. The method of claim 1, wherein the detecting the state of the cell further comprises:

judging whether all Stream Control Transmission Protocol (SCTP) links bearing the S1interface are abnormal or not;

if so, the state of the cell is an unavailable state;

and if not, the state of the cell is an available state.

4. The method of claim 1, wherein the detecting the state of the cell further comprises:

and detecting the state of the cell at preset time intervals.

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

a mobile management entity receives network returning requests sent by a plurality of terminals, wherein the network returning requests comprise network returning information;

the mobility management entity judges whether the terminal is a terminal requesting to return to an LTE network from a GSM network or not according to the network returning information;

if so, the mobility management entity determines the terminal which needs to be refused to return to the network request from the terminal which returns to the LTE network from the GSM network;

and the mobile management entity returns a refusing instruction to the terminal refusing the network returning request, wherein the refusing instruction comprises delay connection time, so that the terminal receiving the refusing instruction sends the network returning request again according to the delay connection time.

6. The method of claim 5, wherein the delayed connection time is a timer time or a random time obtained by multiplying a random number by the timer time.

7. The method of claim 5, wherein the determining, from the terminals returned from the GSM network to the LTE network, the terminal that needs to be denied the request to return to the network further comprises:

judging whether the receiving quantity of the network returning requests is larger than a preset processing threshold value or not within preset processing time;

if so, determining the terminal corresponding to the partial network returning request exceeding the preset processing threshold as the terminal needing to be refused the network returning request.

8. An apparatus for returning to a network, the apparatus comprising an evolved node B;

the evolution type base station comprises a state detection module, a residual value acquisition module and a starting module;

the state detection module is used for detecting the state of the cell;

the residual value acquisition module is used for acquiring a residual value after modulo 3 of the cell when the state of the cell is changed from an unavailable state to an available state;

and the starting module is used for starting the cell according to the corresponding relation between the modulo-3 remainder of the cell and the preset starting waiting time.

9. A computing device, comprising: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus;

the memory is configured to store at least one executable instruction that causes the processor to perform the operations of the network return method of any of claims 1-7.

10. A computer storage medium having stored therein at least one executable instruction for causing a processor to perform the method of any one of claims 1-7.