CN102625418B

CN102625418B - The method and apparatus selecting public land mobile communication network network access network

Info

Publication number: CN102625418B
Application number: CN201110034390.0A
Authority: CN
Inventors: 闫学霞; 周汉
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2011-02-01
Filing date: 2011-02-01
Publication date: 2016-08-03
Anticipated expiration: 2031-02-01
Also published as: CN102625418A; WO2011147362A1

Abstract

The embodiment of the present invention provides a kind of method and apparatus selecting public land mobile communication network network access network, and the method includes: the quantity of the UE accessed on home service device statistics the oneth PLMN；Described home service equipment, according to the quantity of UE accessed on a described PLMN and presetting rule, sends a notification message, to notify the state of a described PLMN or available PLMN to UE.The embodiment of the present invention, the quantity of the UE accessed on a PLMN exceedes threshold value, or when the quantity of the UE accessed on a PLMN exceedes the network state information exception of threshold value and this PLMN, home service equipment or MTC platform can notify that UE currently limits this PLMN of access so that UE can select other PLMN to access；It is achieved in when network problem occurs in PLMN or during in order to meet the requirement of current PLMN network, can effectively control user from available PLMN access network.

Description

The method and apparatus selecting public land mobile communication network network access network

Technical field

The present embodiments relate to communication technical field, particularly relate to a kind of method and apparatus selecting public land mobile communication network network access network.

Background technology

M2M (machinetomachine, Machine To Machine) is the radio communication of Machine To Machine.Sensu lato M2M includes following three kinds of modes: Machine To Machine, machine is to mobile phone (such as user remotely monitors), and mobile phone is to machine (such as user remotely controls).

Commonly used along with mobile technology, the terminal quantity of M2M can account for the ratio of whole terminal quantity and will get more and more.The business model of M2M can be the mode of MVNO (MobileVirtualNetworkOperate, mobile virtual network operation), it is also possible to be to be runed by the operator of MNO (MobileNetworkOperate, mobile network runs).Under the pattern of MVNO, one of possible networking mode is: there is the M2M business platform of oneself in M2M operator, there is no the Radio Resource of oneself, there is no a core network element yet, but there is the PLMN (PublicLandMobile-communicationNetwork of oneself, public land mobile communication network network) ID, HLR/HSS can be disposed with oneself, the HLR/HSS of MNO can also be rented, wherein HLR be attaching position register (HomeLocationRegister), HSS be home subscriber server (HomeSubscriberServers).

Under above-mentioned MVNO pattern, M2M operator can use Internet resources and the Radio Resource of MNO with different MNO operator signature roaming agreements, make M2M user can carry out M2M business by the Internet resources of MNO and Radio Resource.MVNO operator, when with MNO operator signature roaming agreement, typically can subscribe to the agreement with multiple MNO operators, say, that the SIM/USIM card M2M user has multiple PLMNID and selects to be linked into real-time performance M2M business for M2M user.

In prior art, when M2M user selects access network in multiple PLMNID, select PLMNID according to the strong and weak of wireless signal of the network corresponding with PLMN of the priority of PLMNID of signing in USIM/SIM card.When there is the network problems such as congested or network failure when corresponding for certain PLMN network, the priority of the PLMNID of this PLMN is constant, and the power of the wireless signal of network corresponding to this PLMN may be the most constant.Thus, in the prior art, when there is the network problems such as congested or network failure at network corresponding for the PLMN that M2M user is currently used, the PLMNID that M2M user selects only according to the power of the wireless signal of the priority of the PLMNID network corresponding with PLMN, the PLMNID of network problem may or currently occur, thus cannot normal access network.

Summary of the invention

The embodiment of the present invention provides a kind of method and apparatus selecting public land mobile communication network network access network, to achieve effective control user from available PLMN access network.The embodiment of the present invention provides a kind of method selecting PLMN access network, including:

The quantity of the UE accessed on home service device statistics the oneth PLMN；

Described home service equipment, according to the quantity of UE accessed on a described PLMN and presetting rule, sends a notification message, to notify the state of a described PLMN or available PLMN to UE.

The embodiment of the present invention provides a kind of device selecting PLMN access network, and described device is included in home service equipment, and described device includes:

Statistical module, the quantity of the UE accessed on statistics the oneth PLMN；

First notification module, for the quantity according to the UE accessed on a described PLMN and presetting rule, sends a notification message, to notify the state of a described PLMN or available PLMN to UE.

The embodiment of the present invention provides a kind of device selecting PLMN access network, and described device is included in machine type communication MTC platform, and described device includes:

First message reception module, when being used for the quantity receiving the UE that home service equipment accesses on a PLMN more than the first threshold value, second notification message including a UE number parameter of transmission；A described UE number parameter includes: the quantity of the UE accessed on a described PLMN, or for representing the quantity first parameter more than the first threshold value of the UE accessed on a described PLMN；

First sending module, for according to described second notification message, sending the 7th notification message including the first announcement information to UE；Described first announcement information includes: limits and accesses the information of a described PLMN and/or currently available PLMN list.

Second message reception module, for receiving the third notice message including state parameter that home service equipment sends；Described state parameter includes: the quantity of the UE accessed on a PLMN or for representing that the quantity of the UE accessed a described PLMN on is more than the first parameter of the first threshold value, and the network state information of a described PLMN；

Second sending module, for the quantity as the UE accessed a described PLMN on more than described first threshold value, and during the network state information exception of a described PLMN, includes the 7th notification message of the first announcement information to UE transmission；Described first announcement information includes: limits and accesses the information of a described PLMN and/or currently available PLMN list.

The method and apparatus selecting public land mobile communication network network access network of the embodiment of the present invention, the quantity of the UE that home service device statistics the oneth PLMN accesses；Then, home service equipment, according to the quantity of UE accessed on a PLMN and presetting rule, sends a notification message to UE or MTC platform；The quantity making the UE accessed on certain PLMN exceedes threshold value, or when the quantity of the UE accessed on certain PLMN exceedes the network state information exception of threshold value and this PLMN, home service equipment or MTC platform can notify that UE currently limits this PLMN of access so that UE can select other PLMN to access；Thus can be implemented in when network problem occurs in PLMN or during in order to meet the requirement of current PLMN network, can effectively control user from available PLMN access network.

Accompanying drawing explanation

For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in describing embodiment below, the required accompanying drawing used is briefly described, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the flow chart that the present invention selects the embodiment of the method one of PLMN access network；

Fig. 2 is the flow chart that the present invention selects the embodiment of the method two of PLMN access network；

Fig. 3 is the flow chart that the present invention selects the embodiment of the method three of PLMN access network；

Fig. 4 is the flow chart that the present invention selects the embodiment of the method four of PLMN access network；

Fig. 5 is the flow chart that the present invention selects the embodiment of the method five of PLMN access network；

Fig. 6 is the schematic diagram that the present invention selects the device embodiment one of PLMN access network；

Fig. 7 is the schematic diagram that the present invention selects the device embodiment two of PLMN access network；

Fig. 8 is the schematic diagram that the present invention selects the device embodiment three of PLMN access network；

Fig. 9 is the schematic diagram that the present invention selects the device embodiment four of PLMN access network.

Detailed description of the invention

For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.

Fig. 1 is the flow chart that the present invention selects the embodiment of the method one of PLMN access network, as it is shown in figure 1, the method includes:

The quantity of the UE accessed on step 101, home service device statistics the oneth PLMN.

UE in various embodiments of the present invention can be M2M terminal.Home service equipment in the embodiment of the present invention can be HLR or HSS；In following embodiment, illustrate as a example by HSS；Home service equipment is the flow process that flow process during HLR may refer to that home service equipment is HSS.

Each mobile management unit (MobilityManagementEntity, referred to as: mark MME) all includes PLMNID information；When UE is registered to MME, MME can pass through authentication request message or location update message, the mark (including PLMNID information) of this MME and the IMSI (InternationalMobileSubscriberIdentificationNumber, international mobile subscriber identity) of this UE are sent to HSS；Wherein, corresponding for this MME PLMNID is the PLMNID of the PLMN that this UE accesses.

After HSS receives PLMNID and IMSI that MME sends, the quantity of the UE that PLMN that will be corresponding to this PLMNID accesses adds 1.Such as: MME1 correspondence PLMNID1, PLMNID1 correspondence PLMN1, UE1 correspondence IMSI1, UE2 correspondence IMSI2；When UE1 is registered to MME1, MME1 sends PLMNID1 and IMSI1 to HSS, and now the quantity of the UE accessed on PLMN1 is added 1 by HSS, afterwards, UE2 is also registered to MME1, MME1 and sends PLMNID1 and IMSI2 to HSS, and now the quantity of the UE accessed on PLMN1 is added 1 by HSS again.

When HSS receives registration message (purge message), the quantity of the UE that the PLMN that HSS can be corresponding to this PLMNID accesses subtracts 1.During multiple UE access PLMN and/or exit PLMN, HSS can add up the quantity of the UE accessed on each PLMN.A PLMN therein is the PLMN that current UE accesses.

Step 102, home service equipment, according to the quantity of UE accessed on a PLMN and presetting rule, send a notification message, to notify the state of PLMN or available PLMN to UE.

HSS can be according to presetting rule, when network at arbitrary PLMN is unsatisfactory for requiring, to UE or MTC platform (MTCservice, machinetypecommunicationservice, machine type communication platform) send a notification message, access from this PLMN with restriction UE, and make UE select other PLMN to access.Wherein, the notification message that home service equipment sends, can be the first notification message of sending to UE of home service equipment, it is also possible to the second notification message sent to MTC platform for home service equipment.

This presetting rule may include that the population size of the UE accessed according to a certain PLMN decides whether to limit and accesses this PLMN；Or, according to the population size of the UE that a certain PLMN accesses, and the network state information of this PLMN decides whether to limit to access this PLMN the most extremely.Concrete, HSS when the quantity of the UE that arbitrary PLMN accesses is more than a threshold value, can include the notification message of currently available PLMN list to UE transmission for the notification message or transmission limiting this PLMN of access；Or, HSS can be when the quantity of the UE that arbitrary PLMN accesses be more than a threshold value, the quantity of the UE accessed by this PLMN is sent to MTC platform, and then MTC platform includes the notification message of currently available PLMN list to UE transmission for the notification message or transmission limiting this PLMN of access；Or, HSS can be when the quantity of the UE that arbitrary PLMN accesses be more than a threshold value, the quantity of UE and the network state information of this PLMN that are accessed by this PLMN are sent to MTC platform, then MTC platform is when the quantity of the UE that this PLMN accesses is more than the network state information exception of this threshold value and this PLMN, includes the notification message of currently available PLMN list for the notification message or transmission limiting this PLMN of access to UE transmission；Or, HSS can be more than a threshold value in the quantity of the UE that arbitrary PLMN accesses, and during the network state information exception of this PLMN, the quantity of UE accessed by this PLMN and the network state information of this PLMN are sent to MTC platform, and then MTC platform includes the notification message of currently available PLMN list to UE transmission for the notification message or transmission limiting this PLMN of access.

Wherein, state or the available PLMN of the oneth PLMN are notified to UE by HSS or MTC platform, refer to: HSS or MTC platform sends and includes the state of a PLMN or the information broadcast notice messages of available PLMN, all notices being able to receive that the UE of this broadcast notice messages just can receive HSS or MTC platform.

When UE is informed to limit and accesses a certain PLMN, UE can select other available PLMN to access.In the present embodiment, the threshold value in above-mentioned presetting rule, can determine according to practical situation；The quantity of the network of each PLMN UE for accessing on this PLMN has certain requirement, to meet the demand of network normal operation.

The embodiment of the present invention, the quantity of the UE that home service device statistics the oneth PLMN accesses；Then, home service equipment, according to the quantity of UE accessed on a PLMN and presetting rule, sends a notification message to UE or MTC platform；The quantity making the UE accessed on a PLMN exceedes threshold value, or when the quantity of the UE accessed on a PLMN exceedes the network state information exception of threshold value and this PLMN, home service equipment or MTC platform can notify that limiting UE accesses this PLMN, and make UE that other PLMN can be selected to access；Thus can be implemented in when network problem occurs in PLMN or during in order to meet the requirement of current PLMN network, can effectively control user from available PLMN access network.

In the scheme that the embodiment of the present invention provides, can judge whether to limit by HSS and access PLMN, and when needs limit and access PLMN, HSS directly send a notification message to UE；Can also judge whether to limit by MTC platform and access PLMN, and when needs limit and access PLMN, MTC platform send a notification message to UE.The embodiment of the present invention is specifically described by a point situation below.

Fig. 2 is the flow chart that the present invention selects the embodiment of the method two of PLMN access network, as in figure 2 it is shown, the method includes:

Step 201, UE1 are registered to MME1 by base station (eNB).

The application scenarios of the present embodiment is: home service equipment judges whether to limit access PLMN, and when needs limit and access PLMN, home service equipment directly sends a notification message to UE.In following embodiment, home service equipment illustrates as a example by HSS.

Step 202, MME1 send authentication request message or location update message to HSS；Wherein, authentication request message or location update message carry the IMSI1 corresponding for PLMNID1 with UE1 of MME1.

Wherein, the PLMNID1 of MME1, it is the PLMNID1 of the PLMN (PLMN1) that this UE1 is accessed.

The quantity of the UE accessed on step 203, HSS statistics PLMN1；When the quantity of the UE accessed on PLMN1 is more than the first threshold value, perform step 204.

The description in the quantity embodiment shown in Figure 1 step 101 of UE is accessed on HSS statistics PLMN1.After HSS receives PLMNID1 and IMSI1 that MME1 sends, the quantity of the UE that PLMN1 accesses is added 1.

Step 204, HSS send the first notification message including the first announcement information to UE, access PLMN1 to limit.

Wherein, the UE in this step is not defined by the present embodiment, and HSS sends the first notification message, it is possible to the UE receiving this notification message can receive this notification message, such as UE1 and UE2 shown in figure.

Wherein, this first announcement information may include that to limit and accesses the information of PLMN1 and/or currently available PLMN list；That is, this first announcement information is used for limiting UE and accesses this PLMN1, or this first announcement information is for informing PLMN list currently available for UE, or, this first announcement information is informed to UE for the information that currently available PLMN list and restriction access PLMN1 simultaneously, make UE that other available PLMN can be selected to access, thus realize M2M business.It should be noted that when the first announcement information includes limiting the information accessing PLMN1, or, when the first announcement information includes currently available PLMN list, this first announcement information all can limit UE and access this PLMN1；During it is to say, only include currently available PLMN list in the first announcement information, not comprising PLMN1 in this currently available PLMN list, now UE obtains available PLMN access from this list, and no longer accesses from PLMN1.

This first notification message can be cell broadcast messages.Cell broadcast messages can include CBC (CellBroadcastCentre, CBC) message and ACB (AccessClassBaring, access grade is forbidden) message.Concrete, this first notification message can be CBC message or ACB message, say, that the first announcement information can be sent to UE by CBC message or ACB message by HSS, is specifically introduced both notification messages below.

A, the first notification message are CBC message, i.e. use the mode of CBS (CellBroadcastService, cell broadcaste service) to send a notification message.

HSS sends the notification message comprising the first announcement information to CBC, and then CBC sends the CBC message comprising the first announcement information to MME；This first announcement information is notified to corresponding eNB by MME again by CBC message；Then by broadcast, this first announcement information is broadcast to UE by eNB.

Wherein, this first announcement information may include that limit access PLMN1 information, and/or, current UE can PLMN list.

B, the first notification message are ACB message.

HSS sends the ACB message comprising the first announcement information to MME1；This first announcement information is notified to corresponding eNB by MME again by ACB message；Then by broadcast, this first announcement information is broadcast to UE by eNB.

Wherein, this first announcement information may include that and limits the information accessing PLMN1.

It should be noted that in various embodiments of the present invention, after HSS sends cell broadcast messages, all UE being able to receive that this message just can receive this message.

In another embodiment, can in HSS configure-reject UE access strategy so that HSS when a certain PLMN is limited access, refusal accessing this PLMN other UE send request, thus on the basis of above-described embodiment, the present embodiment can also include:

Step 205, when the quantity of the UE accessed on PLMN1 is more than the first threshold value, HSS sends the message that refusal accesses, and the UE being currently registered to PLMN1 with refusal is registered to PLMN1.

When the quantity of the UE accessed on PLMN1 is more than the first threshold value, if there being UE to access this PLMN1 again, then PLMN1 may will cause network congestion or be unsatisfactory for the requirement of this PLMN1 network because of the increase of UE number-of-registration because of the increase of UE number-of-registration, thus, HSS can refuse current UE in authentication request response or position updating request response and be linked into network from this PLMN1, such as when UE1 or UE2 is the UE being currently accessed, send, to UE, the message that refusal accesses.

Above steps is to limit the process that UE accesses from PLMN1, but, after the UE quantity accessed on PLMN is recovered normally, it is also possible to this PLMN of UE is currently available for notice so that UE can be from this PLMN access network；Thus, on the basis of above-described embodiment, after step 205, the present embodiment can also comprise the following steps:

Step 206, when the quantity of the UE accessed on PLMN1 is less than or equal to the first threshold value, HSS sends to UE and comprises the 4th notification message of the second announcement information.

Wherein, the 4th notification message that HSS sends, all UE being able to receive that this notification message can receive, such as UE1 and UE2 shown in figure.

Wherein, this second announcement information may include that to cancel limiting and accesses the information of PLMN1 and/or currently available PLMN list；That is, this second notification message is used for informing that UE currently can access this PLMN1, or this second announcement information is for informing PLMN list currently available for UE, or, this second announcement information is for by currently available PLMN list and currently can access PLMN1 and inform to UE simultaneously, make UE that this PLMN1 can be selected to access, thus realize M2M business.

The quantity of the UE of the upper access of PLMN1 is change, when the quantity of the UE accessed on PLMN1 is less than or equal to the first threshold value, other UE can be allowed to be linked into PLMN1；Thus, when HSS count on PLMN1 access UE quantity less than or equal to the first threshold value time, HSS judge whether again to UE be transmitted across limit access PLMN1 the first notification message, if being transmitted across, then HSS by message informing currently available for PLMN1 to UE.

Wherein, the 4th notification message can be identical with the type of the first notification message described in step 204.When the 4th notification message is CBC message, this second announcement information may include that to cancel and limits the information accessing PLMN1, is used for indicating UE can be linked into network from PLMN1；And/or, current UE can PLMN list.When the 4th notification message is ACB message, this second announcement information may include that to cancel and limits the information accessing PLMN1.

The embodiment of the present invention, the quantity of the UE that HSS statistics the oneth PLMN accesses；Then, when the quantity of the UE that HSS accesses on a PLMN exceedes threshold value, notice this PLMN of UE limits and accesses so that UE can select other PLMN to access；Thus can be implemented in when network problem occurs in PLMN or during in order to meet the requirement of current PLMN network, can effectively control user from available PLMN access network, thus realize M2M business.

Fig. 3 is the flow chart of the embodiment of the method three of PLMN access network of the present invention, as it is shown on figure 3, the method includes:

Step 301, UE1 are registered to MME1 by eNB.

The application scenarios of the present embodiment is: HSS judges whether to limit access PLMN, and when needs limit and access PLMN, HSS directly sends a notification message to UE.The present embodiment includes with the difference of the embodiment described in Fig. 2: in the present embodiment, and HSS can also receive the network state information of PLMN that the MME that MME sends is belonged to.

Step 302, MME1 send authentication request message or location update message to HSS；Wherein, authentication request message or location update message carry the network state information of the PLMN that IMSI1 and MME1 corresponding for PLMNID1, UE1 of MME1 is belonged to.

In the present embodiment, MME is in addition to being sent to HSS by PLMNID1 and IMSI1, and the network state information of the PLMN also belonged to by MME1 is sent to HSS.Wherein, the network state information of the PLMN that MME is belonged to, it is the network state information of PLMN1；Network state information can be normal or abnormal, and network state information can be extremely: network congestion or network exist fault.Network state information is sent to HSS by MME, and HSS can be made to be monitored the network state of PLMN.

The quantity of the UE accessed on step 303, HSS statistics PLMN1；When the quantity of the UE accessed on PLMN1 is more than the first threshold value, and during the network state information exception of PLMN1, perform step 304.

The UE that step 304, HSS access on current PLMN1 sends the first notification message including the first announcement information, accesses PLMN1 or by currently available PLMN list notification to UE to limit.

Wherein, this first announcement information and the first notification message may refer to the specific descriptions in embodiment illustrated in fig. 2 step 204.Wherein, the first notification message that HSS sends, all UE being able to receive that this notification message can receive, such as UE1 and UE2 shown in figure.

In another embodiment, can in HSS configure-reject UE access strategy so that HSS when a PLMN is unavailable, refusal accessing this PLMN UE send request, thus on the basis of above-described embodiment, the present embodiment can also include:

Step 305, when the quantity of the UE accessed on PLMN1 is more than the first threshold value, and during the network state information exception of PLMN1, HSS sends the message that refusal accesses, and the UE being currently registered to PLMN1 with refusal is registered to PLMN1.

The quantity of the UE accessed on PLMN1 is more than the first threshold value, and during the network state exception of PLMN1, if there being UE to access this PLMN1 again, then PLMN1 may will cause network congestion or be unsatisfactory for the requirement of this PLMN1 network because of the increase of UE number-of-registration because of the increase of UE number-of-registration, thus, HSS can refuse current UE in authentication request response or position updating request response and be linked into network from this PLMN1, such as when UE1 or UE2 is the UE being currently accessed, send, to UE, the message that refusal accesses.

Above steps is to limit the UE process from PLMN1 access network, but, after the UE quantity accessed on PLMN is recovered normally, it is also possible to notice this PLMN of UE currently can access so that UE can be from this PLMN access network；Thus, on the basis of above-described embodiment, after step 305, the present embodiment can also comprise the following steps:

Step 306, when the quantity of the UE accessed on PLMN1 is less than or equal to the first threshold value, and when the network state information of PLMN1 is normal, HSS sends the 4th notification message comprising the second announcement information to UE.

Wherein, this second announcement information and the 4th notification message may refer to the specific descriptions in embodiment illustrated in fig. 2 step 206.Wherein, the 4th notification message that HSS sends, all UE being able to receive that this notification message can receive, such as UE1 and UE2 shown in figure.

The quantity of the UE of the upper access of PLMN1 is change, when the quantity of the UE accessed PLMN1 on is less than or equal to the first threshold value, and when the network state information of PLMN1 is normal, other UE can be allowed to be linked into PLMN1；Thus, when HSS counts on the quantity of the UE that PLMN1 accesses less than or equal to the first threshold value, and when the network state information of PLMN1 is normal, HSS judges whether to be transmitted across limiting the first notification message accessing PLMN1 to UE again, if being transmitted across, then HSS by message informing currently available for PLMN1 to UE.

The embodiment of the present invention, the quantity of the UE that HSS statistics the oneth PLMN accesses, and receive the network state information of a PLMN；Then, the quantity of the UE that HSS accesses on a PLMN exceedes threshold value, and during the network state information exception of this PLMN, HSS can limit with this PLMN of UE and access so that UE can select other PLMN to access；Thus can be implemented in when network problem occurs in PLMN or during in order to meet the requirement of current PLMN network, effectively control user from available PLMN access network, thus realize M2M business.

Fig. 4 is the flow chart of the embodiment of the method four of PLMN access network of the present invention, and as shown in Figure 4, the method includes:

Step 401, UE1 are registered to MME1 by eNB.

The application scenarios of the present embodiment is: MTC platform judges whether to limit access PLMN, and when needs limit and access PLMN, MTC platform sends a notification message to UE.

Step 402, MME1 send authentication request message or location update message to HSS；Wherein, authentication request message or location update message carry the IMSI1 corresponding for PLMNID1 with UE1 of MME1.

The quantity of the UE accessed on step 403, HSS statistics PLMN1；When the quantity of the UE accessed on PLMN1 is more than the first threshold value, perform step 404.

Step 404, HSS send the second notification message including a UE number parameter to MTC platform, so that PLMN1 is currently limited access notice to UE according to the second notification message by MTC platform.

Wherein, a UE number parameter includes: the quantity of the UE of the upper access of PLMN1, or for representing the quantity first parameter more than the first threshold value of the UE accessed on PLMN1.It is to say, HSS can send the quantity of the UE accessed on PLMN1 to MTC platform, it is also possible to the quantity directly transmitting the UE accessed on PLMN1 to MTC platform is more than this result of the first threshold value, i.e. sends the first parameter.

Step 405, MTC platform, according to the second notification message, send the 7th notification message comprising the first announcement information to UE, PLMN1 currently to limit access notice to UE.

Wherein, the 7th notification message that MTC platform sends, all UE being able to receive that this notification message can receive, such as UE1 and UE2 shown in figure.

Wherein, this first announcement information may include that to limit and accesses the information of PLMN1 and/or currently available PLMN list；That is, this first announcement information is used for limiting UE and accesses this PLMN1, or this first announcement information is for informing PLMN list currently available for UE, or, this first announcement information is informed to UE for the information that currently available PLMN list and restriction access PLMN1 simultaneously, make UE that other available PLMN can be selected to access, thus realize M2M business.

MTC platform receives the second notification message that HSS sends, according to the second notification message, MTC platform can know that the quantity of the UE accessed on PLMN1 is more than the first threshold value, concrete: after MTC platform receives the quantity of the UE accessed on PLMN1, the quantity of this UE is compared with the first threshold value, i.e. can get the quantity of the UE accessed on PLMN1 more than this result of the first threshold value, or, after MTC platform receives the first parameter, just obtain the quantity of the UE of access on PLMN1 and be more than this result of the first threshold value；Then MTC platform sends the 7th notification message comprising the first announcement information to UE.Wherein, the 7th notification message can be cell broadcast messages, is specifically as follows CBC message or ACB message.

When the 7th notification message is CBC message, this MTC platform sends the CBC message comprising the first announcement information to MME；This first announcement information is notified to corresponding eNB by MME again by CBC message；Then by broadcast, this first announcement information is broadcast to UE by eNB.Wherein, this first announcement information may include that the information accessing PLMN1 that limits, and/or, currently available PLMN list.

When the 7th notification message is ACB message, this MTC platform sends the ACB message comprising the first announcement information to MME；This first announcement information is notified to corresponding eNB by MME again by ACB message；Then by broadcast, this first announcement information is broadcast to UE by eNB.Wherein, this first announcement information may include that and limits the information accessing PLMN1.

Wherein, when cell broadcast messages is ACB message, MTC platform is when MME sends ACB message, and MTC platform directly can send this ACB message to MME, and MTC platform can also send this ACB message through HSS to MME.When MTC platform sends the ACB message comprising the first announcement information through HSS to MME, can in HSS configure-reject UE access strategy, make HSS when a certain PLMN is limited access, refusal is accessing the request that the UE of this PLMN sends, thus on the basis of above-described embodiment, the present embodiment can also include:

Step 406, when HSS receive that MTC platform sends for limiting the first notification message accessing PLMN1 time, HSS sends the message that refusal accesses, and the UE being currently registered to PLMN1 with refusal is registered to PLMN1.

Above steps is to limit UE from the process accessed from PLMN1, but, the UE quantity accessed on PLMN recover normal after, it is also possible to notify that this PLMN of UE is currently available so that UE can be from this PLMN access network；Thus, on the basis of above-described embodiment, after step 406, the present embodiment can also comprise the following steps:

Step 407, when on PLMN1 access UE quantity less than or equal to the first threshold value time, HSS sends the 5th notification message including the 2nd UE number parameter to MTC platform, so that MTC platform includes the 8th notification message of the second announcement information according to the 5th notification message to UE transmission, currently can access to UE notice PLMN1.

Wherein, the 8th notification message that MTC platform sends, all UE being able to receive that this notification message can receive, such as UE1 and UE2 shown in figure.

The quantity of the UE of the upper access of PLMN1 is change, when the quantity of the UE accessed on PLMN1 is less than or equal to the first threshold value, the quantity of the UE accessed on current PLMN1 is sent to MTC platform, i.e. HSS and sends the 5th notification message including the 2nd UE number parameter to MTC platform by HSS；Wherein, the content that the 2nd UE number parameter and a UE number parameter include is corresponding, and the i.e. the 2nd UE number parameter may include that the quantity of the UE accessed on PLMN1, or for representing the quantity parameter less than or equal to the first threshold value of the UE accessed on PLMN1.

Step 408, MTC platform, according to the 5th notification message, send the 8th notification message including the second announcement information to UE, currently can access to UE notice PLMN1.

After MTC platform receives the 5th notification message, i.e. can know that the quantity of the UE accessed on PLMN1 is less than or equal to the first threshold value, now MTC platform judges whether to be transmitted across limiting to UE first notification message of access PLMN1 again, if being transmitted across, then cancellation is limited the message informing accessing PLMN1 and sends the 8th notification message including the second announcement information to UE, i.e. MTC platform by MTC platform.Wherein, the message that PLMN1 currently can access, it is and cancels the message limiting access PLMN1.

The message that PLMN1 currently can access can be sent to UE by the 8th notification message by MTC platform；Wherein, form and the mode of transmission of the 8th notification message and the 7th notification message in step 405 can be identical, differing only in the content that the second announcement information in the 8th notification message in this step includes is: cancels and limits the information accessing PLMN1, and/or, currently available PLMN list.

The embodiment of the present invention, the quantity of the UE that HSS statistics the oneth PLMN accesses；Then, when the quantity of the UE that HSS accesses on a PLMN exceedes threshold value, the quantity of the UE that this PLMN accesses is sent to MTC platform by HSS；MTC platform notice this PLMN of UE limits and accesses afterwards so that UE can select other PLMN to access；Thus can be implemented in when network problem occurs in PLMN or during in order to meet the requirement of current PLMN network, can effectively control user from available PLMN access network.

Fig. 5 is the flow chart of the embodiment of the method five of PLMN access network of the present invention, as it is shown in figure 5, the method includes:

Step 501, UE1 are registered to MME1 by eNB.

The application scenarios of the present embodiment is: MTC platform judges whether to limit access PLMN, and when needs limit and access PLMN, MTC platform sends a notification message to UE.The present embodiment includes with the difference of the embodiment described in Fig. 4: in the present embodiment, when MTC platform judges whether to limit access PLMN, it is also contemplated that the network state information of PLMN.

Step 502, MME1 send authentication request message or location update message to HSS；Wherein, authentication request message or location update message carry the network state information of the PLMN that IMSI1 and MME1 corresponding for PLMNID1, UE1 of MME1 is belonged to.

In the present embodiment, MME is in addition to being sent to HSS by PLMNID and IMSI, and the network state information of the PLMN also belonged to by MME is sent to HSS.Wherein, the network state information of the PLMN that MME1 is belonged to, it is the network state information of PLMN1；Network state information can be normal or abnormal, and network state information can be extremely: network congestion or network exist fault.

The quantity of the UE accessed on step 503, HSS statistics PLMN1；HSS sends a notification message to MTC platform according to presetting rule.

Concrete, step 503 can include step 503a or step 503b.

The quantity of the UE accessed on step 503a, HSS statistics PLMN1；When the quantity of the UE accessed on PLMN1 is more than the first threshold value, HSS sends the third notice message including state parameter to MTC platform；Then step 504 is performed.Wherein, this state parameter includes: the quantity of the UE of the upper access of PLMN1 or for representing that the quantity of the UE accessed PLMN1 on is more than the first parameter of the first threshold value, and the network state information of PLMN1.In this step, when the quantity of the UE that HSS accesses on PLMN1 is more than the first threshold value, just the quantity information of the UE accessed on PLMN1 and the network state information of PLMN1 are sent to MTC platform.

The quantity of the UE accessed on step 503b, HSS statistics PLMN1；When the quantity of the UE accessed on PLMN1 is more than the first threshold value, and during the network state information exception of PLMN1, HSS sends the third notice message including state parameter to MTC platform；Then step 504 is performed.Wherein, this state parameter includes: the quantity of the UE of the upper access of PLMN1 or for representing that the quantity of the UE accessed PLMN1 on is more than the first parameter of the first threshold value, and the network state information of PLMN1.In this step, the quantity of the UE that HSS accesses on PLMN1 is more than the first threshold value, and during the network state information exception of PLMN1, just the quantity information of the UE accessed on PLMN1 and the network state information of PLMN1 is sent to MTC platform.

Step 504, MTC platform, according to third notice message, obtain quantity and the network state information of PLMN1 of the UE accessed on PLMN1；When the quantity of the UE accessed on PLMN1 is more than described first threshold value, and during the network state information exception of PLMN1, MTC platform sends the 7th notification message comprising the first announcement information to UE, to limit UE access PLMN1 or by currently available PLMN list notification to UE.

Wherein, this step comprises the specific descriptions in the 7th notification message embodiment shown in Figure 4 step 405 of the first announcement information.Wherein, the 7th notification message that MTC platform sends, all UE being able to receive that this notification message can receive, such as UE1 and UE2 shown in figure.

When MTC platform sends the ACB message comprising the first announcement information through HSS to MME, can in HSS configure-reject UE access strategy, make HSS when a certain PLMN is limited access, refusal is accessing the request that the UE of this PLMN sends, thus on the basis of above-described embodiment, the present embodiment can also include:

Step 505, when HSS receive that MTC platform sends for limiting the first notification message accessing PLMN1 time, HSS sends the message that refusal accesses, and the UE being currently registered to PLMN1 with refusal is registered to PLMN1.

Such as when UE1 or UE2 is the UE being currently accessed, HSS sends, to UE, the message that refusal accesses.

Above steps is to limit the UE process from PLMN1 access network, but, after the UE quantity accessed on PLMN is recovered normally, it is also possible to notice this PLMN of UE currently can access so that UE can be from this PLMN access network；Thus, on the basis of above-described embodiment, after step 505, the present embodiment can also comprise the following steps.

The quantity of the UE accessed on step 506, HSS statistics PLMN1；When the quantity of the UE accessed on PLMN1 is less than or equal to the first threshold value, HSS sends a notification message to MTC platform according to presetting rule.Concrete, step 506 can include step 506a or step 506b.

Step 506a, when the quantity of the UE accessed on PLMN1 is less than or equal to the first threshold value, HSS sends to MTC platform and includes the 6th notification message of current state parameter, then performs step 507.

Step 506b, when the quantity of the UE accessed on PLMN1 is less than or equal to the first threshold value, and when the network state information of PLMN1 is normal, HSS sends the 6th notification message including current state parameter, then performs step 507 to MTC platform.

Wherein, current state parameter in step 506a and step 506b includes: the quantity of the upper UE accessed of current PLMN1 or for representing that current PLMN1 on, the quantity of the UE of access is less than or equal to the first parameter of the first threshold value, and the network state information of PLMN1.It should be noted that step 506a can be applied in same embodiment with step 503a, step 506b can be applied in same embodiment with step 503b.

After step 507, MTC platform receive the 6th notification message that HSS sends, when the quantity of the UE accessed on PLMN1 is normal less than or equal to the network state information of the first threshold value and PLMN1, MTC platform sends the 8th notification message including the second announcement information to UE, currently can access to UE notice PLMN1.

After MTC platform receives the 6th notification message, i.e. can know that the quantity of the UE accessed on current PLMN1 is less than or equal to the first threshold value, now MTC platform judges that the network state information of current PLMN1 is the most abnormal again, if the network state information of current PLMN1 is abnormal, then MTC platform judges whether to be transmitted across for limiting the 7th notification message accessing PLMN1 to UE again, if being transmitted across, then MTC platform by message informing currently available for PLMN1 to UE.

Wherein, the message that PLMN1 currently can access can be sent to UE by the 8th notification message by MTC platform, form and the mode of transmission of the 8th notification message and the 7th notification message in step 504 can be identical, differ only in the content that the second announcement information in the 8th notification message in this step includes and are: cancel limiting and access the information of PLMN1 and/or currently available PLMN list.

The embodiment of the present invention, the quantity of the UE that HSS statistics the oneth PLMN accesses, and receive the network state information of a PLMN；Then, when the quantity of the UE that HSS accesses on a PLMN exceedes threshold value, the quantity of UE and the network state information of this PLMN that this PLMN accesses are sent to MTC platform by HSS；When the quantity of the UE that MTC platform accesses on this PLMN exceedes the network state information exception of threshold value and this PLMN afterwards, notice this PLMN of UE is limited access so that UE can select other PLMN to access；Thus can be implemented in when network problem occurs in PLMN or during in order to meet the requirement of current PLMN network, effectively control user from available PLMN access network.

One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can be completed by the hardware that programmed instruction is relevant, aforesaid program can be stored in a computer read/write memory medium, this program upon execution, performs to include the step of said method embodiment；Aforesaid storage medium includes: the various media that can store program code such as ROM, RAM, magnetic disc or CD.

Fig. 6 is the schematic diagram that the present invention selects the device embodiment one of PLMN access network, and as shown in Figure 6, this device is included in home service equipment, and this device includes: statistical module 61 and the first notification module 63.

The quantity of the UE that statistical module 61 accesses on statistics the oneth PLMNPLMN.

First notification module 63, for the quantity according to the UE accessed on a PLMNPLMN and presetting rule, sends a notification message, to notify the state of a PLMN or available PLMN to UE.

In the present embodiment, workflow and the operation principle of modules see the description in embodiment of the method shown in above-mentioned Fig. 1, do not repeat them here.Wherein, home service equipment can include HSS or HLR.

The embodiment of the present invention, the quantity of the UE that statistical module counts the oneth PLMN accesses；Then, the first notification module, according to the quantity of UE accessed on a PLMN and presetting rule, sends a notification message to UE or MTC platform；The quantity making the UE accessed on a PLMN exceedes threshold value, or when the quantity of the UE accessed on a PLMN exceedes the network state information exception of threshold value and this PLMN, home service equipment or MTC platform can notify that limiting UE accesses this PLMN, and make UE that other PLMN can be selected to access；Thus can be implemented in when network problem occurs in PLMN or during in order to meet the requirement of current PLMN network, can effectively control user from available PLMN access network.

Fig. 7 is the schematic diagram that the present invention selects the device embodiment two of PLMN access network, on the basis of the device embodiment shown in Fig. 6,

First notification module 63 may include that the first notification unit 631 and/or the second notification unit 633.Or, the first notification module 63 may include that third notice unit the 635, the 4th notification unit 637 and/or the 5th notification unit 639.

First notification unit 631, for when the quantity of the UE accessed on a PLMN is more than the first threshold value, sends the first notification message including the first announcement information to UE.

Second notification unit 633 is for when the quantity of the UE accessed on a PLMN is more than the first threshold value, the second notification message including a UE number parameter is sent, so that MTC platform includes the 7th notification message of first communication information according to the second notification message to UE transmission to MTC platform；Oneth UE number parameter includes: the quantity of the UE accessed on a PLMN, or for representing the quantity first parameter more than the first threshold value of the UE accessed on a PLMN.

First announcement information includes: limits and accesses the information of a PLMN and/or currently available PLMN list.

When the first notification module 63 includes: when third notice unit the 635, the 4th notification unit 637 and/or five notification units 639, this device can also include: receiver module 65.

Receiver module 65 is for receiving the network state information of the PLMN corresponding for MME that MME sends；

Third notice unit 635 is used for: when the quantity of the UE accessed on a PLMN is more than the first threshold value, and during the network state information exception of a PLMN, sends the first notification message including the first announcement information to UE.

4th notification unit 637 is used for: when the quantity of the UE accessed on a PLMN is more than the first threshold value, send to MTC platform and include the third notice message of state parameter, so that include the 7th notification message of first communication information during network state information exception that the quantity of UE that accesses on a PLMN of MTC platform is more than the first threshold value and a PLMN to UE transmission.

5th notification unit 639 is used for: when the quantity of the UE accessed on a PLMN is more than the first threshold value, and during the network state information exception of a PLMN, the third notice message including state parameter is sent, so that MTC platform includes the 7th notification message of first communication information according to third notice message to UE transmission to MTC platform.

Above-mentioned state parameter includes: the quantity of the UE accessed on a PLMN or for representing that the quantity of the upper UE accessed of a PLMN is more than the first parameter of the first threshold value, and the network state information of a PLMN；First announcement information includes: limits and accesses the information of a PLMN and/or currently available PLMN list.

Further, this device can also include: the second notification module 67 and/or third notice module 69.

Second notification module 67 is used for: after the UE accessed on a current PLMN at the first notification unit 631 sends the first notification message including the first announcement information, when the quantity of the UE accessed on a PLMN is less than or equal to the first threshold value, send the 4th notification message including the second announcement information to UE.

Third notice module 69 is used for: at the second notification unit 633 after the transmission of MTC platform includes the second notification message of a UE number parameter, when the quantity of the UE accessed on a PLMN is less than or equal to the first threshold value, the 5th notification message including the 2nd UE number parameter is sent, so that MTC platform includes the 8th notification message of the second announcement information according to the 5th notification message to UE transmission to MTC platform.2nd UE number parameter includes: the quantity of the UE accessed on a PLMN, or for representing the quantity second parameter less than or equal to the first threshold value of the UE accessed on a described PLMN.

Second announcement information includes: cancels limiting and accesses the information of a PLMN and/or currently available PLMN list.

Further, device can also include: the 4th notification module the 60, the 5th notification module 62 and/or the 6th notification module 64.

4th notification module 60 is used for: after the UE accessed on a current PLMN at third notice unit 635 sends the first notification message including the first announcement information, when the quantity of the UE accessed on a PLMN is less than or equal to the first threshold value, and when the network state information of a PLMN is normal, send the 4th notification message including the second announcement information to UE；

5th notification module 62 is used for: at the 4th notification unit 637 after the transmission of MTC platform includes the second notification message of state parameter, when the quantity of the UE accessed on a PLMN is less than or equal to the first threshold value, the 6th notification message including current state parameter is sent to MTC platform, during so that the quantity of UE that accesses on a PLMN of MTC platform is normal less than or equal to the network state information of the first threshold value and a PLMN, send the 8th notification message including the second announcement information to UE.

6th notification module 64 is used for: at the 5th notification unit 639 after the transmission of MTC platform includes the second notification message of state parameter, when the quantity of the UE accessed on a PLMN is less than or equal to the first threshold value, and when the network state information of a PLMN is normal, the 6th notification message including current state parameter is sent, so that MTC platform includes the 8th notification message of the second announcement information according to the 6th notification message to UE transmission to MTC platform；

Description during modules and the workflow of unit and operation principle see above-mentioned each method embodiment in the present embodiment, does not repeats them here.

The embodiment of the present invention, the quantity of the UE that home service device statistics the oneth PLMN accesses；Then, home service equipment, according to the quantity of UE accessed on a PLMN and presetting rule, sends a notification message to UE or MTC platform；The quantity making the UE accessed on a PLMN exceedes threshold value, or when the quantity of the UE accessed on certain PLMN exceedes the network state information exception of threshold value and this PLMN, home service equipment or MTC platform can notify that limiting UE accesses this PLMN, and make UE that other PLMN can be selected to access；Thus can be implemented in when network problem occurs in PLMN or during in order to meet the requirement of current PLMN network, can effectively control user from available PLMN access network.

Fig. 8 is the schematic diagram that the present invention selects the device embodiment three of PLMN access network, and this device is included in MTC platform, and this device includes: the first message reception module 81 and the first sending module 83.

When first message reception module 81 is used for the quantity receiving the UE that HSS accesses on a PLMN more than the first threshold value, second notification message including a UE number parameter of transmission；A described UE number parameter includes: the quantity of the UE accessed on a described PLMN, or for representing the quantity first parameter more than the first threshold value of the UE accessed on a described PLMN.

First sending module 83 for according to described second notification message, sending the 7th notification message including the first announcement information to UE；Described first announcement information includes: limits and accesses the information of a described PLMN and/or currently available PLMN list.

The embodiment of the present invention, when the quantity of the UE that home service equipment accesses on a PLMN exceedes threshold value, is sent to the first message reception module of MTC platform by the quantity of the UE accessed on this PLMN；First sending module notice this PLMN of UE of MTC platform limits and accesses afterwards so that UE can select other PLMN to access；Thus can be implemented in when network problem occurs in PLMN or during in order to meet the requirement of current PLMN network, can effectively control user from available PLMN access network.

Fig. 9 is the schematic diagram that the present invention selects the device embodiment four of PLMN access network, and this device is included in MTC platform, and this device includes: the second message reception module 91 and the second sending module 93.

Second message reception module 91 is for receiving the third notice message including state parameter that HSS sends；Described state parameter includes: the quantity of the UE accessed on a described PLMN or for representing that the quantity of the UE accessed a described PLMN on is more than the first parameter of the first threshold value, and the network state information of a described PLMN.

Second sending module 93 more than described first threshold value, and during the network state information exception of a described PLMN, includes the 7th notification message of the first announcement information for the quantity as the UE accessed a described PLMN on to UE transmission.Described first announcement information includes: limits and accesses the information of a described PLMN and/or currently available PLMN list.

The embodiment of the present invention, when the quantity of the UE that home service equipment accesses on a PLMN exceedes threshold value, the quantity of UE that this PLMN accesses and the network state information of this PLMN are sent to the second message reception module of MTC platform by home service equipment；When the quantity of the UE that the second sending module of MTC platform accesses on this PLMN exceedes the network state information exception of threshold value and this PLMN afterwards, notice this PLMN of UE is limited access so that UE can select other PLMN to access；Thus can be implemented in when network problem occurs in PLMN or during in order to meet the requirement of current PLMN network, can effectively control user from available PLMN access network.

Last it is noted that above example is only in order to illustrate technical scheme, it is not intended to limit；Although the present invention being described in detail with reference to previous embodiment, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims

1. the method selecting public land mobile communication network network PLMN access network, it is characterised in that including:

Described home service equipment, according to the quantity of UE accessed on a described PLMN and presetting rule, sends a notification message, to notify the state of a described PLMN or available PLMN to UE；

Wherein, described home service equipment, according to the quantity of UE accessed on a described PLMN and presetting rule, sends a notification message and includes:

When the quantity of the UE accessed on a PLMN is more than the first threshold value, described home service equipment sends the first notification message including the first announcement information to UE；Or

When the quantity of the UE accessed on a PLMN is more than the first threshold value, described home service equipment sends the second notification message including a UE number parameter to machine type communication MTC platform, so that described MTC platform includes the 7th notification message of first communication information according to described second notification message to UE transmission；A described UE number parameter includes: the quantity of the UE accessed on a described PLMN, or for representing the quantity first parameter more than the first threshold value of the UE accessed on a described PLMN；

Described first announcement information includes: limits and accesses the information of a described PLMN and/or currently available PLMN list.

Method the most according to claim 1, it is characterised in that also include: home service equipment receives the network state information of the PLMN corresponding for described MME that mobile management unit MME sends；

Described home service equipment, according to the quantity of UE accessed on a described PLMN and presetting rule, sends a notification message and includes:

When the quantity of the UE accessed on a PLMN is more than the first threshold value, and during the network state information exception of a described PLMN, described home service equipment sends the first notification message including the first announcement information to UE；Or

When the quantity of the UE accessed on a PLMN is more than the first threshold value, described home service equipment sends to MTC platform and includes the third notice message of state parameter, so that include the 7th notification message of first communication information during network state information exception that the quantity of UE that accesses on a described PLMN of described MTC platform is more than the first threshold value and a described PLMN to UE transmission；Described state parameter includes: the quantity of the UE accessed on a described PLMN or for representing that the quantity of the UE accessed a described PLMN on is more than the first parameter of the first threshold value, and the network state information of a described PLMN；Or

When the quantity of the UE accessed on a PLMN is more than the first threshold value, and during the network state information exception of a described PLMN, described home service equipment sends the third notice message including state parameter to MTC platform, so that described MTC platform includes the 7th notification message of first communication information according to described third notice message to UE transmission；Described state parameter includes: the quantity of the UE accessed on a described PLMN or for representing that the quantity of the UE accessed a described PLMN on is more than the first parameter of the first threshold value, and the network state information of a described PLMN；

Method the most according to claim 1, it is characterised in that also include:

When the quantity of the UE accessed on a described PLMN is more than described first threshold value, or when described home service equipment receive that described MTC platform sends for limiting the notification message accessing a described PLMN time, the current UE being registered to a described PLMN of described home service equipment refusal is registered to a described PLMN.

Method the most according to claim 1, it is characterised in that:

The UE that described home service equipment accesses on a presently described PLMN also includes after sending the first notification message including the first announcement information: when the quantity of the UE accessed on a described PLMN is less than or equal to described first threshold value, and described home service equipment sends the 4th notification message including the second announcement information to UE；Or

Described home service equipment also includes send the second notification message including a UE number parameter to MTC platform after: when the quantity of the UE accessed on a described PLMN is less than or equal to described first threshold value, described home service equipment sends the 5th notification message including the 2nd UE number parameter to described MTC platform, so that described MTC platform includes the 8th notification message of the second announcement information according to described 5th notification message to UE transmission；Described 2nd UE number parameter includes: the quantity of the UE accessed on a described PLMN, or for representing the quantity second parameter less than or equal to the first threshold value of the UE accessed on a described PLMN；

Described second announcement information includes: cancels limiting and accesses the information of a described PLMN and/or currently available PLMN list.

Method the most according to claim 2, it is characterised in that also include:

When the quantity of the UE accessed on a described PLMN is more than the network state information exception of described first threshold value and a described PLMN, or when described home service equipment receive that described MTC platform sends for limiting the notification message accessing a described PLMN time, the current UE being registered to a described PLMN of described home service equipment refusal is registered to a described PLMN.

Method the most according to claim 2, it is characterised in that:

The UE that described home service equipment accesses on a presently described PLMN also includes after sending the first notification message including the first announcement information: when the quantity of the UE accessed on a described PLMN is less than or equal to described first threshold value, and when the network state information of a described PLMN is normal, described home service equipment sends the 4th notification message including the second announcement information to UE；Or

Described home service equipment also includes send the second notification message including state parameter to MTC platform after: when the quantity of the UE accessed on a described PLMN is less than or equal to described first threshold value, described home service equipment sends the 6th notification message including current state parameter to MTC platform, during so that the quantity of UE that accesses on a described PLMN of described MTC platform is normal less than or equal to the network state information of described first threshold value and a described PLMN, send the 8th notification message including the second announcement information to UE；Or

Described home service equipment also includes send the second notification message including state parameter to MTC platform after: when the quantity of the UE accessed on a described PLMN is less than or equal to described first threshold value, and when the network state information of a described PLMN is normal, described home service equipment sends the 6th notification message including current state parameter to MTC platform, so that described MTC platform includes the 8th notification message of the second announcement information according to described 6th notification message to UE transmission；

7. selecting a device for public land mobile communication network network PLMN access network, described device is included in home service equipment, it is characterised in that described device includes:

First notification module, for the quantity according to the UE accessed on a described PLMN and presetting rule, sends a notification message, to notify the state of a described PLMN or available PLMN to UE；

Wherein, described first notification module includes:

First notification unit, for when the quantity of the UE accessed on a PLMN is more than the first threshold value, sends the first notification message including the first announcement information to UE；Or

Second notification unit, for when the quantity of the UE accessed on a PLMN is more than the first threshold value, the second notification message including a UE number parameter is sent, so that described MTC platform includes the 7th notification message of first communication information according to described second notification message to UE transmission to machine type communication MTC platform；A described UE number parameter includes: the quantity of the UE accessed on a described PLMN, or for representing the quantity first parameter more than the first threshold value of the UE accessed on a described PLMN；

Device the most according to claim 7, it is characterised in that

Described device also includes: receiver module, for receiving the network state information of the PLMN corresponding for described MME that mobile management unit MME sends；

Described first notification module includes: third notice unit, the 4th notification unit or the 5th notification unit；

Described third notice unit is used for: when the quantity of the UE accessed on a PLMN is more than the first threshold value, and during the network state information exception of a described PLMN, sends the first notification message including the first announcement information to UE；

Described 4th notification unit is used for: when the quantity of the UE accessed on a PLMN is more than the first threshold value, send to MTC platform and include the third notice message of state parameter, so that include the 7th notification message of first communication information during network state information exception that the quantity of UE that accesses on a described PLMN of described MTC platform is more than the first threshold value and a described PLMN to UE transmission；

Described 5th notification unit is used for: when the quantity of the UE accessed on a PLMN is more than the first threshold value, and during the network state information exception of a described PLMN, the third notice message including state parameter is sent, so that described MTC platform includes the 7th notification message of first communication information according to described third notice message to UE transmission to MTC platform；

Described state parameter includes: the quantity of the UE accessed on a described PLMN or for representing that the quantity of the UE accessed a described PLMN on is more than the first parameter of the first threshold value, and the network state information of a described PLMN；

Device the most according to claim 7, it is characterised in that described device also includes: the second notification module or third notice module；

Described second notification module is used for: after the UE accessed on a presently described PLMN at described first notification unit sends the first notification message including the first announcement information, when the quantity of the UE accessed on a described PLMN is less than or equal to described first threshold value, send the 4th notification message including the second announcement information to UE；

Described third notice module is used for: at described second notification unit after the transmission of MTC platform includes the second notification message of a UE number parameter, when the quantity of the UE accessed on a described PLMN is less than or equal to described first threshold value, the 5th notification message including the 2nd UE number parameter is sent, so that described MTC platform includes the 8th notification message of the second announcement information according to described 5th notification message to UE transmission to described MTC platform；Described 2nd UE number parameter includes: the quantity of the UE accessed on a described PLMN, or for representing the quantity second parameter less than or equal to the first threshold value of the UE accessed on a described PLMN；

Device the most according to claim 8, it is characterised in that described device also includes: the 4th notification module, the 5th notification module or the 6th notification module；

Described 4th notification module is used for: after the UE accessed on a presently described PLMN at described third notice unit sends the first notification message including the first announcement information, when the quantity of the UE accessed on a described PLMN is less than or equal to described first threshold value, and when the network state information of a described PLMN is normal, send the 4th notification message including the second announcement information to UE；

Described 5th notification module is used for: at described 4th notification unit after the transmission of MTC platform includes the second notification message of state parameter, when the quantity of the UE accessed on a described PLMN is less than or equal to described first threshold value, the 6th notification message including current state parameter is sent to MTC platform, during so that the quantity of UE that accesses on a described PLMN of described MTC platform is normal less than or equal to the network state information of described first threshold value and a described PLMN, send the 8th notification message including the second announcement information to UE；

Described 6th notification module is used for: at described 5th notification unit after the transmission of MTC platform includes the second notification message of state parameter, when the quantity of the UE accessed on a described PLMN is less than or equal to described first threshold value, and when the network state information of a described PLMN is normal, the 6th notification message including current state parameter is sent, so that described MTC platform includes the 8th notification message of the second announcement information according to described 6th notification message to UE transmission to MTC platform；

11. 1 kinds of devices selecting public land mobile communication network network PLMN access network, described device is included in machine type communication MTC platform, it is characterised in that described device includes:

12. 1 kinds of devices selecting public land mobile communication network network PLMN access network, described device is included in machine type communication MTC platform, it is characterised in that described device includes: