WO2006094458A1

WO2006094458A1 - A method for controlling the accesses of terminals

Info

Publication number: WO2006094458A1
Application number: PCT/CN2006/000345
Authority: WO
Inventors: Chengjun Li; Zhengwei Wang; Shengxi Pan; Li Shen; Zenghua Fang
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2005-03-08
Filing date: 2006-03-08
Publication date: 2006-09-14

Abstract

A method for controlling the accesses of terminals comprises: A, setting access rejection table so as to record the service field access rejection network identification and service field identification; B, looking up the access rejection table according to the service field identification and the network identification when the terminal attempts to access to the service field of the PLMN network, if finding the corresponding record in the table, refraining the terminal from access to the service field of this PLMN; if finding no corresponding record in the table, allowing the terminal access to the service field of this PLMN. By applying this invention, it could ensure the terminal reliably roam to the service field with an agreement, thus avoid the influence of the service field network without an agreement during the procedure of terminal roaming access.

Description

Method for controlling terminal access

Technical field

The present invention relates to the field of wireless communication technologies, and more particularly to a method of controlling terminal access. Background of the invention

Now 3G networks are gradually commercializing in the world, and 2G and 3G coexisting more and more networks. Dual-mode mobile phones and other dual-mode terminals (hereinafter collectively referred to as UEs, ie user equipments) are born and gradually commercialized, which can be used in 2G and Free switching between 3G networks. Because 3G networks are also immature commercial networks, there are a large number of experimental networks. Because it is a trial network, the operator does not write the PLMN (Public Land Mobile Network) into the FPLMN of the SIM card (the public land mobile network is prohibited), ie the SIM can register with the trial network. When the UE attempts to perform location or routing updates and registers a CS or PS domain, the current test network may return registration exception information such as IMSI U KOWN IN HLR, ILLEGAL MS, ILLEGAL ME, GPRS SERVICES NOT ALLOWED or GPRS SERVICES NOT ALLOWED IN THIS PLM. The existing technical solutions are processed according to the specifications, and the 3GPP specifications do not consider various complex network environments in reality. According to the protocol 3GPP 24.008, at this time, the UE will set the status of the service domain such as CS (Circuit Switching) or PS (Packet Switching) of the subscriber identity module to be illegal according to the information returned by the trial network, so that As a result, the UE (User Equipment) cannot make a call or access the Internet. Even if it returns to the available network, it cannot log in normally. Because the subscriber identity module has been set to CS or the PS is invalid, the UE does not reset the subscriber identity module status. The UE must be restarted for normal use, which inconveniences the user.

When the operator builds a 2G, 3G network, or builds a trial network, In the case of network evolution or business operation, etc., it is impossible to sign all service domains. How to avoid the user terminal roaming access process is affected by the service domain network that the carrier has not signed, so that the terminal can exist in a complex environment with multiple networks. Achieving reliable access has become an urgent problem to be solved. Summary of the invention

In view of this, it is an object of the present invention to provide a method of controlling access to a terminal such that the terminal can reliably roam access to a corresponding service domain in its subscribed RAT network.

The object of the invention is achieved by the following technical solutions:

A method for controlling terminal access includes:

A. Set the access denied list to record the rejected network identifier and service domain identifier when accessing the service domain. 5

B. When the terminal attempts to fall in the service domain of the PLMN network, the access denial table is searched according to the service domain identifier and the network identifier. If the corresponding record is found in the access denial table, the terminal prohibits the PLMN. The access is performed on the service domain; if the corresponding record is not found in the access denial table, the terminal allows the access to be performed on the service domain of the PLMN.

The network identity includes a PLMN identity and/or a RAT identity.

Step A is further: adding a service domain identity attribute in the disabled PLMN table in the subscriber identity module, or adding a RAT identity attribute and a service domain identity attribute to expand the access denied list.

Step A is further configured to: separately set an access denial table in the subscriber identity module or the UE, where the access denial table includes a service domain identifier attribute and a PLMN identity attribute, or includes a service domain identifier attribute and a RAT identifier attribute, or includes a service. Domain ID attribute, PLMN ID attribute, and RAT ID attribute.

Step B also includes determining whether the PLMN is present in the forbidden PLMN table. The method further includes: when the terminal cannot access any of the corresponding PLMNs through all the RAT networks supported by the terminal, the PLMN is recorded in the forbidden PLMN table.

The method further includes: when the terminal receives the registration abnormality message returned by the network side, the service domain identifier that fails to be registered and the corresponding network identifier are recorded in the access rejection list.

The method further includes: when the terminal manually attempts to access successfully, if the corresponding service domain identifier and its corresponding network identifier are recorded in the access denial table, the record is automatically deleted from the table. : ..'

The RAT network includes: an advanced mobile telephone system (AMPS) network, a narrowband code division multiple access (CDMA IS95) network, a CDMA2000 network, a CDMA2000 EV-DO network for enhancing data services, and a digital cellular mobile communication system (GSM) network. Wideband Code Division Multiple Access (WCDMA) networks, Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) networks, Wireless Local Area Network (WLAN) networks, WIMAX networks.

The access denial table includes a user identification module identification attribute domain.

The user identification module identifier may be an International Mobile Subscriber Identity (IMSI) in the subscriber identity module, and may be an electronic serial number (ESN) of the subscriber identity module.

The user identification module includes a UIM, a SIM, and a USIM. The access denial table is a dynamic table or a static table. '

The access includes: location update, routing update, or service domain registration.

A method for controlling terminal access includes:

A. The terminal selects the service domain to be attempted to access and the PLMN in which it is located, and attempts to access;

B. When the terminal receives the registration exception message returned by the network side, the terminal's monthly service domain is no longer invalid.

The method further includes:

Set the access denied table to record the rejection of location updates, routing updates, or service domain registrations PLMN identity and/or RAT network identity and service domain identity;

In step A, before attempting to access, the terminal further includes searching for the access denial table according to the PLMN identifier and/or the RAT identifier and the service domain identifier, and if the corresponding record is not found in the access denial table, the terminal The location update, routing update, or service domain registration is attempted, otherwise the terminal does not attempt location update, routing update, or service domain registration.

Step B further includes:

The RAT network identifier and the PLMN identity and service domain identifier in which it resides are recorded in the access reject list.

The service domain includes a CS service domain, a PS service domain, and a CS&PS service domain.

It can be seen from the technical solution provided by the present invention that the implementation of the present invention enables an operator to build a 2G, 3G network, or when constructing a trial network, and cannot sign all the service domains due to network evolution or commercial operation. In this case, the user terminal can be reliably roamed to the subscribed service domain, thereby avoiding the influence of the unsigned service domain network during the roaming access process of the user terminal. BRIEF DESCRIPTION OF THE DRAWINGS

1 is a flow chart of an exemplary method of the present invention.

2 is a flow chart of an exemplary method in accordance with a first embodiment of the present invention.

3 is a schematic flow chart of an exemplary method according to a second embodiment of the present invention.

4 is a flow chart showing an exemplary process according to a third embodiment of the present invention. Mode for carrying out the invention

The core idea of the present invention is: first, the terminal selects a RAT network, a PLMN, and a service domain that can be attempted to register, and attempts to register; and then when the terminal receives the registration exception message returned by the network side, the terminal (U) SIM is no longer used. The service domain is set to invalid. And in order to reduce unnecessary taste The trial access causes the power consumption of the mobile phone. The present invention further sets the access rejection list, which may be by extending the FPLMN table in the current subscriber identity module, adding a service domain identity attribute or simultaneously adding the RAT attribute and the service domain identity attribute. In order to make it an access rejection list, an access rejection list can also be established separately in the subscriber identity module. The subscriber identity module includes an ISIM card, a UIM card, a SIM card, and a USIM card. When receiving the registration abnormality message returned by the network side, the terminal writes the corresponding PLMN identity, the RAT identifier, and the service domain identifier into the access rejection list, and uses the table to determine whether to try to access the service of the RAT network of one PLMN. area.

The invention can effectively solve the problem that in the 2G network and/or the 3G network environment, the service domain of one network does not allow access, and the access to the available network service domain cannot be accessed.

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

The specific implementation of the method of the present invention is as shown in FIG. 1 , and includes the following steps: In the present invention, it can be assumed that in the 2G and 3G networks of the same PLMN, when the terminal performs location update or routing update or service domain registration, A specific implementation of the method of the present invention is shown in FIG. 1 and includes the following steps:

Step 11: In the PLMN, when the UE attempts to perform location update or routing update or service domain registration, the network returns a registration exception message to the UE;

Step 12: The UE receives the message, and does not set the CS domain or the PS domain when the PLMN is registered to be invalid.

Step 13: Determine whether there are other available networks in the current RAT, if yes, perform step 14, otherwise, perform step 15;

Step 14: Determine that the RAT still has other available networks, and then try to perform location update or routing update or service domain registration to other available networks, until each network of the RAT fails to implement update or service domain registration, step 15; Of course, if on other available networks When the location update or registration is implemented, the corresponding access processing ends;

Step 15: When the UE attempts location update or registration failure in a RAT network, then switch to another new RAT to search for another RAT network again;

In this way, when the terminal fails to register the corresponding PLMN and the service domain through the current RAT, the CS or PS of the U (SIM) is not set to be invalid, and other registrations can be continued without restarting the terminal, so that the terminal user can access the network.

In the processing provided by the above invention, if the available RAT network is not always searched in the PLMN, or the location update, the routing update, or the registration service domain attempt for each RAT network fails, the PLMN may be written. In the FPLMN, it indicates that the UE is prohibited from accessing and roaming in the PLMN.

Obviously, in the case of having the same PLMN, when one service domain does not allow access and roaming, and another service domain subscription allows access and roaming, the method of the present invention is adopted, so that the terminal discovers a certain one under the PLMN. When the service domain does not allow access, it can still try to access other service domains under the PLMN that have not tried to access or allow access or roaming. In order to reduce the energy consumption of the terminal due to unnecessary access attempts and improve the access efficiency, the present invention further sets an access denial list, by which the terminal can avoid invalid attempts of those service domains that are not allowed to register.

The access denial table may be set in the subscriber identity module or may be set in the UE, and the subscriber identity module may be an ISIM card, a UIM card, a SIM card, a USIM card, and the like.

When the access rejection list is set in the subscriber identity module, the FPLMN table in the current subscriber identity module may be extended, the service domain identity attribute may be added therein, or the RAT attribute and the service domain identity attribute may be simultaneously added to Make it the fc entry rejection table; the access rejection table can also be set separately in the subscriber identity module. In general, the table is a static table that loses power without losing information. · '

When the access denial table is set in the subscriber identity module, the access denial list may be A static table that loses power without power loss, or a dynamic table that loses power loss information. Of course, when the access denial table is set in the subscriber identity module, the access denial list may also be a dynamic table of power loss information.

The access denied list includes a network identity attribute and a service domain identity attribute, where the network identity attribute refers to a PLMN identity and/or a RAT identity. The service domain includes CS, PS service domain and possibly other service domains. The access denial table is used to record the service domain information that is denied access. When the terminal performs location update, or road tour update or service domain registration on a certain RAT network of a certain PLMN, After receiving the registration abnormality message returned by the network side, that is, the login failure message, the current network identification information and the corresponding monthly service domain identification information may be recorded in the table.

When the access denial table is set in the subscriber identity module, the access denial list is generally a static table that is powered off without losing information; when the access denial list is set in the UE, the access denial list may be It is a static table that loses power without power loss, and can also be a dynamic table that loses information when power is lost. Of course, when the access denial table is set in the subscriber identity module, the access denial list may also be a dynamic table of power loss information.

After the access denial table is set, when the terminal performs location update, routing update, or registration of the service domain in the corresponding service domain on a certain RAT network of a certain PLMN, the service domain is searched according to the network identifier and the service domain identifier. Access denial table, if the corresponding record is not found in the above table, the update or registration is attempted, otherwise the attempt to update or register is not performed.

In this way, if the subscription service is searched for in the RAT network of a PLMN, the location update, the routing update, or the registration of the service domain can be performed, thereby satisfying the access and roaming needs of the terminal, and facilitating the operator to provide flexible access for the user terminal. Into the service.

In order to demonstrate the role of the access denial table, the following further describes in depth through the embodiments. As shown in FIG. 2, the first embodiment of the present invention includes the following steps: Step 21: Set an access rejection list in the user identification module. This embodiment passes at present The service identification attribute of the FPLMN table of the subscriber identity module is added as shown in Table 1, or the RAT identity attribute and the service domain attribute are added as shown in Table 2 to be extended to the service domain access rejection list.

In practical applications, the record number in the table may not be available.

In practical applications, the record number in the table may not be available.

The extended FPLMN table shown in Table 1 only includes the service domain identity attribute and the corresponding PLMN identity attribute, which may be applicable to the case where the terminal corresponds to one available RAT network in one PLMN identity, in which case only the service domain is required. The identification attribute and the corresponding PLMN identification attribute can distinguish different service domains of different networks.

The extended FPLMN table shown in Table 2 includes the service area identity attribute and the corresponding RAT network identity and PLMN identity attribute, which is applicable to the case where one PLMN identity of the terminal corresponds to multiple RAT networks, and can distinguish various situations. Different service domains under different networks.

The PLMN identifier and/or the RAT identifier are collectively referred to as network identifier information. In the extended FPLMN table, the recorded information includes a network identifier and a service domain identifier information, when the UE is in a certain When a location update, routing update, or registration is performed on a RAT network of a PLMN, the registration exception information such as IMSI UNKOWN IN HLR, ILLEGAL MS, ILLEGAL ME, GPRS SERVICES NOT ALLOWED, or GPRS SERVICES NOT ALLOWED IN THIS PLMN returned by the network side is received. And recording the current network identification information and the service domain identifier information of the terminal in the extended FPLMN table;

Step 22: The UE determines to try a location update, a route update or a registered service domain and a corresponding PLMN, or the UE determines to try a location update, a route update or a registered service domain and a corresponding PLMN and RAT identity. For example: When the UE moves to the foreign network or reboots, it will search for the corresponding AT network signal and automatically select a server of a certain RAT network.

Step 23: Check whether the service domain and its corresponding network identity information are present in the extended FPLMN table, that is, check the service domain and the corresponding PLMN, or check whether the service domain and the corresponding PLMN and RAT identifier exist in the In the extended FPLMN table, when the extended FPLMN table is as shown in Table 1, the table may be searched according to the service domain identifier and the corresponding PLMN identifier. When the extended FPLMN table is as shown in Table 2, The table is searched according to the service domain identifier and the corresponding PLMN identifier and the current RAT identifier. If the service domain and its corresponding network identifier information are present in the extended FPLMN table, step 24 is performed; otherwise, step 25 is performed.

Step 24: Determine whether other available networks are searched under the current RAT. If other available networks are searched, return to step 23. If no other available networks are found, go to step 28.

Step 25: The UE attempts a location update or routing update or registration service domain.

Step 26: Determine whether the update or registration is successful, and if successful, end; otherwise, perform step 27; for example, receive the IMSI UNKOWN IN HLR, ILLEGAL MS^ ILLEGAL ME, GPRS SERVICES NOT ALLOWED or GPRS SERVICES NOT ALLOWED IN THIS returned by the network side When the PLMN or the like registers the abnormal information, the update or registration fails. Step 27: Record the domain ID of the registration failure and the corresponding network identifier into the extended FPLMN table, that is, record the current PLMN identity and the service domain into the extended FPLMN table, or the current PLMN identity, the RAT network identifier, and the service domain. Recorded in the extended FPLMN table, when the extended FPLMN table is as shown in Table 1, the service domain identifier and the corresponding PLMN identifier that failed to be updated or registered are recorded in the extended FPLMN table. When the extended FPLMN table is as shown in Table 2, the service domain identifier, the RAT network, and the corresponding PLMN identifier that failed to be updated or registered are recorded in the FPLMN table; after that, the process returns to step 24.

Step 28: Switch to another RAT, and re-search for the RAT network and its corresponding PLMN; then return to step 23;

In this way, if a RAT network and a corresponding service domain are searched for in a certain PLMN, location update or routing update or service domain registration can be performed, thereby satisfying the access and roaming needs of the UE, and facilitating the operator to provide flexibility for the terminal. Access service.

Obviously, in step 21, the setting the access denial table may also be implemented by separately setting an access denial table in the user identifier module, without performing the extension on the existing FPLMN, or may be in the The access denial table implementation is set in the UE. In this way, the expected purpose can be achieved in the same way that the other steps are basically unchanged.

When the deny access table is set separately in the user identification module or is set in the UE, the table may not only include the service domain identifier attribute and the corresponding PLMN identifier attribute manner as in Table 1 above, or The manner of including the service domain identity attribute and the corresponding RAT network identity and the PLMN identity attribute in Table 2 above may also be the manner of Table 3 below. Record number RAT identifier (1 byte) knife service field label · ί only (1 byte, can include CS, PS, CS & PS)

1

2

N

In practical applications, the record number in the table may not be available.

In Table 3, only the service domain identity attribute and the corresponding RAT identity attribute are included. Table 3 can be applied to a case where the available RAT network of the terminal only corresponds to one PLMN identity. In this case, only the service domain identity attribute and the corresponding RAT identity attribute can be used to distinguish different service domains of different networks. In this way, when the foregoing embodiment is implemented, the corresponding operation of step 22 is: the UE determines to try the location update, or the routing update, or the service domain registration service domain and the corresponding RAT identifier; Check whether the service domain and the corresponding RAT identifier exist in Table 3. If yes, go to Step 24, otherwise go to Step 25. The corresponding operation in Step 27 is: Record the service domain ID and the corresponding RAT ID record. Go to Table 3. The other steps can be basically unchanged or adjusted accordingly. As shown in FIG. 3, which is a second embodiment of the present invention, the method includes the following steps: Step 31: separately setting an access rejection table in the user identification module, as shown in Table 3 above, in the table, recorded The information includes the RAT identity and the service domain identity.

Step 32: The UE determines to try a location update, or a route update, or a registered service domain and RAT identity. For example: When the UE moves to the foreign network or reboots, it will search for the corresponding RAT network signal and automatically select a certain RAT network. .

Step 33: Check whether the PLMN corresponding to the RAT network exists in the FPLMN table, if yes, it is determined that the PLMN prohibits the UE from accessing, and step 34 is performed; otherwise, step 35 is performed;

Step 34: Search for other networks of the current RAT, and determine whether other available ones are searched for. Network, when it is found, go to step 33; if no other available RAT network is found, go to step 39;

Step 35: If the corresponding PLMN is not in the FPLMN, continue to check the access denial table, that is, Table 3. If no matching record is found in Table 3 according to the RAT identifier and the current service domain identifier, go to Step 36, otherwise , go to step 34;

Step 36: Allow the UE to try to register the PLMN network and perform corresponding location update. Step 37: Determine whether the location update or registration is successful. If not, proceed to step 38. If the UE receives the location update or registration success message, Then the process ends. For example: If the registration exception information such as IMSI UN OWN IN HLR, ILLEGAL MS > ILLEGAL ME, GPRS SERVICES NOT ALLOWED or GPRS SERVICES NOT ALLOWED IN THIS PLMN returned by the network side is received, the update or registration fails. Step 38: Record the RAT identifier and the current service domain identifier that rejects the update or registration into the access denial table (Table 3) instead of simply corresponding to the CS domain in the terminal or the user identification module or The PS field is set to invalid. Then perform step 34;

Step 39: If there is no other available network in the current RAT, switch to another RAT, and re-search the network, determine the corresponding RAT network and the PLMN in which it is located, and perform step 33 until it accesses the network.

In the above embodiment, the access denial table as shown in Table 1, Table 2, and Table 3 may be set in the UE, and the table may be set as a dynamic table or as a static table. Obviously, keeping the other steps of the two embodiments unchanged, only changing the way the user identification module sets the table to setting in the UE can also achieve the intended purpose.

In the above method, when the UE manually attempts to register a service domain of a certain PI^^VIN, the access rejection list is not checked. After registration, the UE may further perform: the UE according to the current service domain identifier and the PLMN and/or Or the RAT identifier checks the access denial table, and deletes the corresponding record found. Of course, when the access denial table is set in the UE, in order to support the UE to replace the user card, that is, the user identification module, the user identification module (ie, user card) identification attribute domain may be further added to the access denial table. .

As shown in FIG. 4, the third embodiment of the present invention includes the following steps: Step 41: An access denial table is set in a UE (or a subscriber identity module), and the table may be stored in a file system of the UE. The table is mainly used for recording the terminal login network rejection history information, and may include a PLMN (Public Land Mobile Network) identifier, a RAT (Radio Access Technology) identifier, and a service domain identifier information, and may also include (U)SIM. ID (User Identity Module Identification) information, the service domain identification information includes CS (Circuit Switching), PS (Packet Switching), CS&PS (Circuit Switching and Packet Switching), etc. Here, the PLMN identity and/or the RAT identifier are called Network identification information. The user identification module identifier may be an International Mobile Subscriber Identity (IMSI) in the subscriber identity module, may be an electronic serial number (ESN) of the subscriber identity module, and may be other information that can identify the subscriber identity module in the terminal. . The access denial table may be, but is not limited to, the recording format shown in the following table:

In practical applications, the record number in the table may not be available.

In the present invention, the access denial table may be a dynamically or statically saved table.

If the dynamic table is used as the access reject list, the (U)SIM identifier in the table can be omitted; this is because when the UE changes the card, the record of the dynamic table will be automatically cleared;

If it is a static table, the USIM identifier in the table can be either or not. The conditions are as follows:

1) When the USIM logo is not included in the table, the current user card ID should be saved in the mobile phone. When the card is changed, the mobile phone determines whether to change the card by comparing the identifier of the new card with the identifier of the saved card. This judgment is generally made at the time of power-on. When the mobile phone changes cards, the records in the above table can be cleared. When there is no card change, the phone continues to use the records in the table.

2) When the USIM logo is included in the table, the phone can use this ID to distinguish the login rejection of the same card. However, the frequent card change of the mobile phone may cause the record in the table to increase too fast, or the mechanism for deleting the record in the table is set in the UE, for example, the maximum number of records in the table is set, so that a certain number of records are recorded in the table. After that, delete those records that have not been used for a long time. - If it is a dynamic table, the USIM identifier in the table may not be used; because the table record is automatically cleared when the card is changed. Of course, in the case of a multi-card unified card, when multiple subscriber identity module identifiers may appear in one card, the USIM identifier in the access rejection list may still be retained. In summary, the access denied list added to the USIM identity can record the access denied information more accurately.

Step 42: When the UE moves to the foreign network or reboots, it will search for the corresponding RAT network signal and automatically select a certain RAT network, that is, the UE determines the service domain and the PLMN where the location update or registration can be attempted.

Step 43: Check whether the PLMN in the service domain exists in the FPLMN. If yes, determine that the PLMN prohibits the UE from accessing, and perform step 44. Otherwise, go to step 45.

Step 44: Search for other service domains of the current RAT and determine whether other available service domains are searched. When the corresponding available service domain is searched and the corresponding PLMN is determined, step 43 is performed; if other available service domains are not found, Then proceed to step 49.

Step 45: If not in the FPLMN, continue to check the access denial table, that is, Table 4, if no matching record is found in Table 5 according to the current user identification module identifier, the network identification information of the network to be selected, and the current service domain identifier. Then, go to step 46. Otherwise, go to step 44. Step 46: Allow the UE to try to register the PLMN network, and perform corresponding location update. Step 47: When the UE performs location update or registration on a certain service domain of a PLMN, determine whether the location update or registration is successful, such as the network. If the abnormality message is returned to the UE, it is determined that the location update or registration process fails. After the UE receives the message, step 48 is performed. If the UE receives the message of location update or registration success, the processing ends.

Step 48: Record the current user identification module identifier, the network identification information (PLMN identity and/or RAT identifier) that refuses to access the roaming, and the current service domain identifier into the access denial table, instead of simply The CS domain or PS domain of the terminal (U)SIM is set to be invalid. Then proceed to step 44.

Those skilled in the art should know that when there are two such records in the table: the service domain attribute values are CS and PS, respectively, and other records except the record number or the record identifier have the same value, the two records can be merged. For one, make the corresponding service domain attribute value CS&PS. Of course, the process may also be performed when a record that can be merged is added to the table. For example, if the CS service domain under the network identification information of a user card identifier is rejected, if the terminal determines that the PS service domain under the network identifier information is rejected under the user card identifier, The service domain attribute value corresponding to the record of the CS domain can be directly changed to CS&PS.

Step 49: If there is no other available network in the current RAT, switch to another RAT, and re-search the network, determine the corresponding RAT network and the PLMN in which it is located, and perform step 43 until it accesses the network.

In the present invention, if all the service domains of all the RATs supported by the mobile phone corresponding to the mobile phone identified by the current subscriber identity module recorded in the access denial table are rejected, that is, the UE rejects the support according to the access rejection table. All RATs cannot access a certain PLMN, and the PLMN can also be written into the FPLMN of the subscriber identity module corresponding to the current subscriber identity module identifier, and the corresponding record in the access denial table is deleted. In the above third embodiment, the access denial table may be set in the user card identification module, which is useful for synthesizing a plurality of user cards into one user card. Obviously, keeping the other steps of this embodiment unchanged, changing the manner in which the table is set only in the setting to the setting in the subscriber identity module can also achieve the intended purpose.

In the above method, when the UE manually attempts to register a certain service domain of a certain RAT network of a PLMN, the access rejection list is not checked, and after registration, the UE can further perform: the identification and service of the corresponding user card according to the UE The domain identifier, the current RAT identifier, and the PLMN where the PLMN is located are checked for the access denial table, and the corresponding record found is deleted.

In the present invention, if the user identification module identifier is not included in the access denial table, when the terminal determines to replace the subscriber identity module, the information stored in the access denial table is deleted; or, the terminal determines the user identifier. When the module identification information is replaced, the information stored in the access rejection table is deleted.

In this embodiment, when the terminal manually attempts to register, it is not necessary to check the FPLMN. When the registration is successful, when the PLMN checks that the FPLMN table finds a matching record, the corresponding record is deleted.

In the third embodiment described above, the access denial list may be set in the user card identification module, which is useful for synthesizing a plurality of user cards into a single card of a user card. Obviously, keeping the other steps of this embodiment unchanged, changing only the way in which the table is set in the UE to being set in the subscriber identity module can also achieve the intended purpose.

In the present invention, after the service domain access denial table is set, the number of times the terminal attempts to access can be effectively reduced, and the efficiency of access roaming is improved. And when the user access rejection list is set in the subscriber identity module, the same effect can be achieved if the subscriber identity module is used for other UEs.

In the present invention, when the access denial table is set on the terminal, if the user identification module identifier is not included in the access denial table, when the user terminal determines to replace the subscriber identity module, the Enter the information stored in the rejection list; or, the terminal determines the use When the identification information of the subscriber identity module is replaced, the information stored in the access denial list is deleted.

Obviously, in the present invention, different service domains of the same network are treated differently, or different networks in the same service domain are treated differently, which solves the problems existing in the prior art, thereby satisfying the requirements of the operator to improve the service quality. '

In the present invention, a maintenance interface of the service domain access denial table may also be provided, so that the user can perform maintenance on the data in the table, for example, deleting one, multiple or all records in the table. This will achieve a better implementation. For example, it can be ensured that although the mobile phone was once rejected when registering the service domain of a certain network (the corresponding information is recorded in the service domain access rejection list), as long as the service B is activated, The maintenance interface deletes the related information in the access denial table, and then restores the access of the terminal to the corresponding service domain of the network.

In the present invention, when the terminal manually attempts to register a certain service domain of the RAT of a PLMN, it may not be affected by the access denial table, for example, the service domain access denial list may not be checked, and when the registration is performed, Then, the terminal further checks the service domain access rejection table according to the current subscriber identity module identifier and/or the current network identity and/or the service domain identifier, and deletes the corresponding record that is found.

In the present invention, the RAT network may be: an AMPS network, a CDMA IS95 network, a CDMA2000 network, an EV-DO network, a WLAN network, a W1MAX network, a GSM network, a WCDMA network, or a TD-SCDMA network, and the like.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim

A method for controlling terminal access, characterized in that it comprises:

A. Set an access denied list to record the rejected network identifier and service domain identifier when accessing the service domain;

B. When the terminal attempts to access on the service domain of the PLMN network, the access denial table is searched according to the service domain identifier and the network identifier. If the corresponding record is found in the access denial table, the terminal prohibits the PLMN. The access is performed on the service domain; if the corresponding record is not found in the access denial table, the terminal allows the access to be performed on the service domain of the PLMN. ..

2. The method of controlling access by a terminal according to claim 1, wherein the network identifier comprises a PLMN identity and/or a RAT identity.

The method for controlling terminal access according to claim 1, wherein the step A is further: adding a service domain identifier attribute in the disabled PLMN table in the subscriber identity module, or adding a RAT identity attribute and a service domain identifier. An attribute to extend it to the access denial table.

The method for controlling terminal access according to claim 1, wherein the step A is further configured to: separately set an access denial table in the subscriber identity module or the UE, where the access denial table includes a service domain identifier The attribute and the PLMN identity attribute, or include the service domain identity attribute and the RAT identity attribute, or include a service domain identity attribute, a PLMN identity attribute, and a RAT identity attribute. .

The method for controlling terminal access according to claim 4, wherein the step B further comprises determining whether the PLMN exists in the forbidden PLMN table.

The method for controlling access of a terminal according to claim 5, wherein the method further comprises: when the terminal is unable to access the corresponding RAT network through all the RATs supported by the terminal When any of the service domains in the PLMN, the PLMN is recorded in the forbidden PLMN table.

The method for controlling access of a terminal according to any one of claims 1 to 6, wherein the method further comprises: when the terminal receives a message that the registration side returned by the network side is abnormal, the registration fails. The service domain identifier and the corresponding network identifier are recorded in the access denial table.

The method for controlling terminal access according to claim 1, wherein the method further comprises: when the terminal manually attempts to access successfully, if the corresponding service domain identifier and its corresponding network identifier are recorded in the In the access rejection list, the record is automatically deleted from the table.

The control terminal access method according to any one of claims 1 to 8, wherein the RAT network comprises: an advanced mobile phone system AMPS network, a narrowband code division multiple access CDMA IS95 network, and a CDMA2000 network. , CDMA2000 EV-DO network for enhanced data services, GSM network for digital cellular mobile communication system, WCDMA network for wideband code division multiple access, time division-synchronous code division multiple access TD-SCDMA network, wireless local area network WLAN network, WIMAX network.

10. The method according to claim 1, wherein the access denial table comprises a subscriber identity module identification attribute domain.

The method according to claim 10, wherein the user identification module identifier may be an international mobile subscriber identity code IMSI in the subscriber identity module, and may be an electronic serial number ESN of the subscriber identity module.

The control terminal access method according to any one of claims 1 to 11, wherein the user identification module comprises a UIM, a SIM or a USIM.

13. The method according to claim 1, wherein the access denial table is a dynamic table or a static table.

14. The method according to claim 1, wherein the accessing comprises: a location update, a routing update, or a service domain registration.

A method for controlling access of a terminal, comprising:

B. When the terminal receives the registration exception message returned by the network side, the terminal does not invalidate the service domain of the terminal.

The method according to claim 15, wherein the method further comprises:

Setting an access denied list to record a PLMN identity and/or an AT network identity and a service domain identity that rejects location updates, routing updates, or service domain registrations;

In step A, before attempting to access, the terminal further includes searching for the access denial table according to the PLMN identifier and/or the RAT identifier and the service domain identifier, and if the corresponding record is not found in the access denial table, the terminal The location update, routing update, or service domain registration is attempted, otherwise the terminal does not attempt a location update, a routing update, or a service domain registration.

The method according to claim 15, wherein the step B further comprises: recording the RAT network identifier and the PLMN identifier and the service domain identifier in which the RAT network identifier is located into the access reject list.

The method according to any one of claims 15-17, wherein the service domain comprises a CS service domain, a PS service domain, and a CS&PS service domain.