CN103748905B - Network name display methods and device - Google Patents

Abstract

An embodiment of the present invention provides a method for displaying network names. During the process of the joint attachment procedure or the joint tracking domain location update procedure, the mobility management entity MME in the first network determines that the operator to which the public land mobile network identifier PLMN ID corresponding to the first network belongs corresponds to the operator of the second network Whether the operators to which the PLMN IDs belong are the same. If they are different, the MME sends network name information to the UE, so that the UE displays the network name corresponding to the network name information, where the first network and the second network are in the In the joint attach process or the joint registration network of the UE in the joint tracking domain update process, the first network is a long-term evolution LTE network, and the second network is a 2G network or a 3G network. Through the above technical solution, it is ensured that the network name displayed by the terminal is consistent with the network name displayed by the UE recorded by the network device.

Description

Network name display method and device

technical field

The invention relates to the field of wireless communication, in particular to a network name display method and device.

Background technique

The 3rd generation partnership project (3rd generation partnership project, 3GPP) launched the evolved packet system ( evolved packet system, EPS). The EPS network includes an evolved universal mobile telecommunications system territorial radio access network (evolved universal mobile telecommunications system territorial radio access network, E-UTRAN) and an evolved packet core network (evolved packet core network, EPC). In the early stage of EPS network construction, operators already have a mature circuit switched (circuit switch, CS) network, while the EPS network only processes packet switched (packet switched, PS) services. In order to protect the investment in the CS network and deploy the EPS network, operators can use the original CS mobility management equipment to provide CS services. Based on this requirement, 3GPP expanded the communication between the mobile switching center/visitor location register (MSC/VLR) and the serving GPRS support node (serving GPRS support node, SGSN) in the existing 2G or 3G network. The Gs interface function defines the SGs interface between the MSC/VLR and the mobility management entity (MME) in the EPC network, where GPRS is the abbreviation of general packet radio service (general packet radio service). Based on the SGs interface function, 3GPP proposes a "Circuit Switched Fallback" (CSfallback, CSFB) technology and a SGs short message (short message over SGs, SMS over SGs) technology. CSFB technology enables user equipment (UE) covered by E-UTRAN to fall back to the CS domain of the 2G/3G network through E-UTRAN when it needs to process CS voice services, so as to complete CS voice service processing; SMS over SGs technology allows The UE residing in the E-UTRAN reuses the existing CS domain equipment to transmit short messages in the CS domain.

In order to greatly reduce the operator's heavy wireless access network deployment cost, 3GPP proposed the idea of network sharing, that is, the public land mobile network (PLMN) of multiple operators, or multiple PLMNs of an operator , can share the same wireless access network to provide wireless communication services. For CSFB technology and SMSover SGs technology, operators also put forward the requirement of CS domain network sharing, mainly in the following two scenarios.

Scenario 1. The traditional operator upgrades the existing CS domain network (including 2G network and 3G network) to support CSFB technology and SMS over SGs technology, that is, the operator can share multiple PLMNs operated by itself, or sign a roaming agreement Share the PLMN of other operators to provide CS services for UEs residing in E-UTRAN.

Scenario 2: Emerging pure PS service operators sign an agreement to lease the CS domain network of traditional operators to support CSFB technology and SMS over SGs technology.

In the above CS domain network sharing scenario, for the same UE residing in the E-UTRAN, multiple available PLMNs may provide CS services for it. In the joint attach process or joint tracking area update process initiated by the UE, if there are multiple available PLMNs to provide CS services for the UE, the MME will track the UE's current location according to the PLMN reported by the evolved node B (eNB). Select an appropriate PLMN based on the region's location information and the operator's CS domain network selection strategy. A corresponding CS domain location area identification (location area identification, LAI) is allocated to the UE based on the location information of the selected PLMN and the tracking area where the UE is located, and an associated MSC/VLR is selected based on the LAI. After the joint attach process is completed, the UE will receive the attach accept (attach accept) sent by the MME, the attach accept carrying the tracking area identity list (tracking area identity list, TAI list), LAI and VLR temporary mobile subscriber identity code (temporary mobile subscriber identity , TMSI). For the UE, the acquisition of the LAI and the VLR TMSI by the UE means that the attachment to the CS domain is successful.

After the joint attach process is completed, the UE is successfully registered to the operator's network, and the UE should display the registered network name. Alternatively, after the joint tracking area update procedure, the UE shall display the registered network name. Currently, the UE displays the network name mainly based on two strategies.

Strategy 1: No configuration is performed on the network side, and the UE displays the network name according to its own configuration.

Specifically, the UE displays the network name corresponding to the PLMN ID according to the PLMN identification (identification, ID) of the currently registered network.

However, in some scenarios, the UE cannot determine the network name corresponding to which PLMN ID to display.

Strategy 2: The network side delivers the network name to be displayed to the UE.

When the UE receives the network name delivered by the network side, it can use the received network name to update the network name configured by the UE itself, and display the updated network name.

(1) The MME notifies the UE of the network name to be displayed through an E-UTRAN mobility management information (E-UTRAN mobile management information, EMM information) message, and the UE displays the notified network name. Wherein, the network name notified by the MME is determined by the MME according to the home PLMN (home PLMN, HPLMN) of the MME.

(2) The MSC/VLR sends the network name of the registered CS domain network to the MME through the SGs interface. The MME notifies the UE of the network name to be displayed through the EMM Information message, and the UE displays the notified network name. Wherein, the network name notified by the MME is the network name of the HPLMN of the MME determined by the MME according to the policy of the MME or the network name of the CS domain network registered through the MSC/VLR.

However, in the policy that the network sends the network name to the UE for display, in some scenarios, the UE cannot determine the network name to be displayed, and the MME does not know which network name the UE displays.

Contents of the invention

In view of this, the embodiments of the present invention provide a network name display method and device, so as to solve the problem in the prior art that the change of the network name displayed by the UE causes poor user experience.

In the first aspect, a method for displaying network names is provided, including:

During the process of the joint attachment procedure or the joint tracking domain location update procedure, the mobility management entity MME in the first network determines that the operator to which the public land mobile network identifier PLMN ID corresponding to the first network belongs corresponds to the operator of the second network Whether the operators to which the PLMN ID belongs are the same;

If they are different, the MME sends network name information to the UE, so that the UE displays the network name corresponding to the network name information, where the first network and the second network are in the In the joint attach process or the joint registration network of the UE in the joint tracking domain update process, the first network is a long-term evolution LTE network, and the second network is a 2G network or a 3G network.

In a first possible implementation manner of the first aspect, the MME sending the network name information to the UE includes: the MME transmits the Universal Mobile Telecommunications System Terrestrial Radio Access Network (E-UTRAN) mobility management information The EMMinformation message sends the network name information to the UE.

In combination with the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner, after the MME sends the network name information to the UE, the method further includes: performing During the service process, the UE changes to the second network, and the MME sends the network name information to the first mobility management device of the second network, so that the first mobility of the second network The management device sends the network name corresponding to the network name information to the UE for display; or

After the MME sends the network name information to the UE, the method further includes: changing the UE to a third network during service execution, and sending the network name information to the third network by the MME The second mobility management device of the third network, so that the second mobility management device of the third network sends the network name corresponding to the network name information to the UE for display.

With reference to the second possible implementation of the first aspect, in the third possible implementation, changing the UE to the second network during the execution of the service includes: during the execution of the circuit switched fallback CSFB service, the The UE falls back to the second network; or during the execution of the voice service, the UE switches to the second network to execute the voice service;

Changing the service to the third network during the execution of the service includes: during the execution of the CSFB service, the CSFB service falls back to the third network; or during the execution of the voice service, the UE switches to the third network The three networks execute the voice service.

With reference to the first aspect or any two possible implementation manners of the first aspect, in a fourth possible implementation manner, the network name information includes the network name and/or a PLMN ID corresponding to the network name.

In a second aspect, a mobility management entity MME is provided, where the MME is an MME in the first network, including:

A judging module, configured to judge the operator to which the PLMN ID corresponding to the first network belongs and the operator to which the PLMNID corresponding to the second network belongs during the joint attachment procedure or the joint tracking domain location update procedure Whether they are the same; if not, instruct the sending module to send the network name information;

The sending module is configured to send the network name information to a user equipment UE, so that the UE displays a network name corresponding to the network name information, where the first network and the second network are in the In the joint attach procedure or the joint tracking domain update procedure, the UE jointly registers the network, the first network is a long-term evolution LTE network, and the second network is a 2G network or a 3G network.

In a first possible implementation manner of the second aspect, the sending module is specifically configured to send the network name information to the UE in the following manner: through the universal mobile communication system terrestrial radio access network E-UTRAN mobility The management information EMM information message sends the network name information to the UE.

In combination with the second aspect or the first possible implementation manner of the second aspect, in the second possible implementation manner, the sending module is further configured to, after sending the network name information to the UE, if executing During the service process, the UE changes to the second network, and sends the network name information to the first mobility management device of the second network, so that the first mobility management device of the second network will sending the network name corresponding to the network name information to the UE for display; or

The sending module is further configured to, after sending the network name information to the UE, if the UE changes to the second network during service execution, send the network name information to the third network the second mobility management device, so that the second mobility management device of the third network sends the network name corresponding to the network name information to the UE for display.

In a third aspect, a mobility management entity MME is provided, where the MME is an MME in the first network, including:

A processor, configured to determine the operator to which the PLMN ID corresponding to the first network belongs and the operator to which the PLMN ID corresponding to the second network belongs during the joint attachment procedure or the joint tracking domain location update procedure. whether the quotient is the same; if not, instruct the sender to send the network name information;

The transmitter is configured to send the network name information to a user equipment UE, so that the UE displays a network name corresponding to the network name information, where the first network and the second network are in the In the joint attach procedure or the joint tracking domain update procedure, the UE jointly registers the network, the first network is a long-term evolution LTE network, and the second network is a 2G network or a 3G network.

In a first possible implementation manner of the third aspect, the sender is specifically configured to send the network name information to the UE in the following manner: through the Universal Mobile Telecommunications System Terrestrial Radio Access Network (E-UTRAN) mobility The management information EMM information message sends the network name information to the UE.

In combination with the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner, the transmitter is further configured to, after sending the network name information to the UE, if performing During the service process, the UE changes to the second network, and sends the network name information to the first mobility management device of the second network, so that the first mobility management device of the second network will sending the network name corresponding to the network name information to the UE for display; or

The transmitter is further configured to, after sending the network name information to the UE, if the UE changes to the second network during service execution, send the network name information to the third network the second mobility management device, so that the second mobility management device of the third network sends the network name corresponding to the network name information to the UE for display.

Through the above technical solution, it is ensured that the network name displayed by the terminal is consistent with the network name displayed by the UE recorded by the network device, avoiding the problem that the network name displayed by the UE changes during the execution process, and ensuring that the network name displayed by the UE Consistency improves user experience.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that need to be used in the prior art or the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments. Those skilled in the art can also use these drawings to obtain other drawings.

FIG. 1 is a flowchart of a network name display method provided by an embodiment of the present invention;

FIG. 2 is a flowchart of a network name display method provided by another embodiment of the present invention;

FIG. 3 is a flowchart of a network name display method provided by another embodiment of the present invention;

FIG. 4 is a flowchart of a network name display method provided by another embodiment of the present invention;

FIG. 5 is a flowchart of a network name display method provided by another embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a network device provided by an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a network device provided by another embodiment of the present invention;

FIG. 8 is a schematic structural diagram of an MME provided by an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a network device provided by another embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a network device provided by another embodiment of the present invention;

Fig. 11 is a schematic structural diagram of an MME provided by another embodiment of the present invention.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Regarding the second strategy above, the EMM Information message sent by the MME is an optional message, that is, the MME may not send the EMM Information message to the UE. However, if the MME does not send the EMMInformation message to the UE, the MME does not know whether the UE displays the network name corresponding to the PLMN ID of the LTE network or the network name corresponding to the PLMN ID of the CS domain network.

On the other hand, for example, when the UE performs a VoIP service on a 3G network (such as a High Speed Uplink Packet Access (HSPA) network), it switches to the LTE network. At this time, since the UE displays the network name of the 3G network when the user dials or accepts or triggers the VoIP service, the user judges that the network currently camped on or served by is the 3G network according to the network name currently displayed by the UE. However, if the UE performs PS handover (handover, HO) to the LTE network during the execution of the VoIP service, the UE will receive the LTE network's The EMM information message sent by the MME, at this time, the UE will display the network name notified by the EMM information message. If the network name of the 3G network is different from the network name notified by the EMMInformation message, it may reduce user experience and cause complaints. Therefore, in order to avoid this problem, during the VoIP service process, the network name displayed by the UE should be avoided to be changed due to the execution of PS HO.

Alternatively, when the UE executes voice services in the CS domain on the 2G network or the 3G network, the network name displayed by the UE may be the network name of the 2G network or the 3G network. However, when it is necessary to perform reverse single access voice call continuity (Reverse Single Radio Voice Call Continuity, rSRVCC) during the voice service continuity process, and switch to the LTE network or 3G network, the UE will The PLMN ID of the LTE network or 3G network displays the corresponding network name, or, if the UE receives the GMM information or EMMinformation message sent by the SGSN or MME of the LTE network or 3G network, the UE displays the network name notified by the GMM Information and EMM information messages. In this case, the network name displayed by the UE when the voice service in the CS domain is triggered may be inconsistent with the network name displayed when the UE switches to the LTE or 3G network.

It should be noted that the CS domain network in all embodiments of the present invention may include a 2G network or a 3G network or a 1xRTT network of a code division multiple access (CDMA) network.

In order to solve the above problem, an embodiment of the present invention provides a network name display method. As shown in Figure 1, the method includes the following steps.

Step 110, during the process of the joint attachment procedure or the joint tracking domain location update procedure, the mobility management entity MME in the first network judges that the operator to which the public land mobile network identifier PLMN ID corresponding to the first network belongs is the same as that of the second Whether the PLMN ID corresponding to the network belongs to the same operator;

Step 120, if not the same, the MME sends network name information to the UE, so that the UE displays the network name corresponding to the network name information, where the first network and the second network are In the joint attach procedure or the joint tracking domain update procedure, the UE jointly registers with the network, the first network is a Long Term Evolution LTE network, and the second network is a 2G network or a 3G network.

In this embodiment, the mobility management device of the first network sends network name information to the UE, so that the UE can display the corresponding network name according to the received network name information, thereby avoiding that the mobility management device does not know that the UE displays It is the network name corresponding to the PLMN ID of the LTE network or the network name corresponding to the PLMN ID of the CS domain network, and avoids the problem that the UE does not know which network name corresponds to the PLMN ID to display.

Another embodiment of the present invention also provides a network name display method. As shown in Figure 2, the method includes the following steps.

Step 210, during the process of the joint attachment procedure or the joint tracking domain location update procedure, the mobility management entity MME in the first network judges that the operator to which the public land mobile network identifier PLMN ID corresponding to the first network belongs is the same as that of the second Whether the PLMN ID corresponding to the network belongs to the same operator.

Wherein, the first network is one of the networks to which the UE is jointly attached, such as an LTE network.

Step 220, if not the same, then the MME sends network name information to the UE; after receiving the network name information sent by the MME, the UE displays the network name corresponding to the network name information, wherein, The first network and the second network are networks jointly registered by the UE in the joint attach procedure or the joint tracking domain update procedure, the first network is a Long Term Evolution LTE network, and the second The network is 2G network or 3G network.

Wherein, the network name information may be a network name, may also be a PLMN ID, or may be a network name and a PLMN ID.

Specifically, if a joint attachment procedure or a joint tracking domain location update procedure is performed, and the UE is jointly attached to the LTE network and the 2G network or jointly attached to the LTE network and the 3G network, the MME may be an MME of the LTE network, and the MME The network name information may be sent to the UE through an EMM information message. Different from the prior art, in this embodiment, if the MME determines that the operator to which the PLMN ID of the LTE network belongs is different from the operator to which the PLMN ID of the CS domain network belongs, the EMMinformation message must be sent instead of Optional message.

If the operator to which the PLMN ID of the LTE network belongs is different from the operator to which the PLMN ID of the 2G or 3G network belongs, the MME sends network name information to the UE, and the network name information may be the home PLMN ID of the MME, It may also be the PLMN ID of the LTE network, or the PLMN ID of the CS domain network.

Further, in this embodiment, if the operator to which the PLMN ID of the LTE network belongs is the same as the operator to which the PLMN ID of the 2G or 3G network belongs, the MME may send an EMM information message to the UE, or may not send the EMM information message to the UE . That is, if the operator to which the PLMN ID of the LTE network belongs is the same as the operator to which the PLMN of the 2G or 3G network belongs, the EMM information message is still an optional message.

In the embodiment of the present invention, if the MME judges that the operator to which the PLMN ID of the LTE network belongs is different from the operator to which the PLMN ID of the 2G or 3G network belongs, the MME sends an EMM Information message to the UE, and this message must be sent. , so as to avoid the problem that the UE cannot determine which network name to display during or after the execution of the CSFB joint attachment and joint tracking area update procedures, and ensure that the network name displayed by the terminal is the same as that displayed by the UE recorded by the mobility management device The network name of the UE is consistent, avoiding the problem that the network name displayed by the UE changes and sends the change during the execution process, ensures the consistency of the network name displayed by the UE, and improves user experience.

Further, if the first network is an LTE network, during the execution of the CSFB service, the UE falls back from the first network to the second network, at this time, the network name displayed by the UE may change, which is easy Cause bad user experience. Similarly, the UE may encounter the same problem when performing voice services. In order to overcome this problem, the above may further include the following steps.

Step 230, the UE changes to the second network during service execution, and the MME sends the network name information to the first mobility management device of the second network, so that all The first mobility management device sends the network name corresponding to the network name information to the UE for display; or, when the UE changes to a third network during service execution, the MME sends the network name information sending to the second mobility management device of the third network, so that the second mobility management device of the third network sends the network name corresponding to the network name information to the UE for display.

Specifically, performing a circuit switched fallback CSFB service to drop the UE back to the second network, the MME sends the network name information to the mobility management device of the second network, and the mobility management device of the second network The information of the network name is sent to the UE, and the UE displays the network name corresponding to the information of the network name, and at this time, the first network is an LTE network.

Alternatively, the UE is handed over to the second network by performing the voice service, the MME sends the network name information to the mobility management device of the second network, and the mobility management device of the second network sends the network name information The information of the network name is sent to the UE, and the UE displays the network name corresponding to the information of the network name.

The MME sends the information of the network name previously sent to the UE to the mobility management device of the second network, and the mobility management device of the second network sends the information of the network name to the UE for display. In this way, the information displayed by the UE The network name is the same as previously shown

Another embodiment of the present invention provides a network name display method.

Considering that in the prior art, after the UE is attached to the LTE network, the UE displays the network name of the LTE network. However, when the CSFB service triggers the UE to fall back to the 2G network or 3G network or switch the voice service to the 2G network, 3G network or 4G network (such as the LTE network), the UE will display the 2G network, 3G network or 4G network where the UE is currently camped. The network name of the network. Or, if the UE falls back to the 2G network or 3G network or switches the voice service to the 2G network, 3G network or 4G network (such as the LTE network), and the UE receives the GPRS mobility management information sent by the SGSN of the 2G network or the 3G network (GPRS mobile management information, GMM information) message, or if the UE receives the mobile management information (mobile management information, MM Information) message sent by the MSC/VLR of the 2G network or 3G network, the UE displays the GMM information message or MM information message notification The name of the network, or if the UE receives the E-UTRAN mobility management information (E-UTRAN mobile management information, EMM Information) message sent by the MME of the 4G network, the UE displays the network name notified by the EMM information message.

or

In the prior art, when the UE performs a Voice over Internet Protocol (VoIP) service on the 3G network, it switches to the LTE network. At this time, since the UE displays the network name of the 3G network when the user dials or accepts or triggers the VoIP service, the user judges that the network currently camped on or the network serving the UE is a 3G network according to the network name displayed by the current UE. However, if the UE performs PS handover (PS handover) to the LTE network during the execution of the VoIP service, and performs a joint tracking area update procedure on the LTE network, the UE will display the network name of the received EMM information notification, or , if the UE does not receive the EMM information, the UE will display the network name of the current network.

However, if the network name displayed after the UE attaches to the LTE network is inconsistent with the network name displayed when the UE falls back to the 2G network or 3G network, or the network name displayed by the UE during the execution of the VoIP service is inconsistent, it will lead to poor user experience. It is easy to cause user complaints.

For example, during the execution of the CSFB service, when the user dials or accepts or triggers the CSFB service, the network name displayed by the UE may be the network name of the LTE network. However, when the UE falls back to the 2G network, the UE will display the corresponding network name according to the PLMN ID of the currently used 2G network, or, when the UE falls back to the 3G network, the UE will display the corresponding network name according to the PLMN ID of the currently used 3G network. the name of the network. Or, if the UE receives the GMM information message sent by the SGSN of the 2G network or the 3G network, or the UE receives the MM information message sent by the MSC/VLR of the 2G network or the 3G network, the UE displays the network notified by the GMM information message or the MM information message name. In this case, the network name displayed when the UE dials or accepts or triggers the CSFB service may be inconsistent with the network name displayed when the UE falls back to the 2G network or 3G network.

For another example, after the UE triggers the VoIP service on the LTE network, the user can judge the network that the UE is currently camping on or the network currently serving the UE according to the network name displayed by the UE. At this time, the network name displayed by the UE can be the LTE network the name of the network. However, when single radio voice call continuity (single radio voice call continuity, SRVCC) needs to be implemented during the implementation of VoIP voice services, and the UE switches to a 2G network or a 3G network, the UE will The PLMNID of the network displays the corresponding network name, or if the UE receives the GMM information message sent by the SGSN of the 2G network or the 3G network, or if the UE receives the MM information message sent by the MSC/VLR of the 2G network or the 3G network, the UE displays The name of the network notified by the GMM information message or MM information message. In this case, the network name displayed by the UE when the VoIP service is triggered may be inconsistent with the network name displayed when the UE falls back to the 2G network or the 3G network.

For another example, when the UE implements voice services in the CS domain on the 2G network or the 3G network, the network name displayed by the UE may be the network name of the 2G or 3G network. However, when it is necessary to perform reverse single radio voice call continuity (rSRVCC) during the voice service continuity process, and the UE switches to an LTE network or a 3G (such as HSPA) network, the UE will then The PLMN ID of the currently used LTE network or 3G network displays the corresponding network name, or if the UE receives the GMM information message sent by the SGSN of the LTE network or the 3G network or the EMM information message sent by the MME, or if the UE receives the To the MMinformation message sent by the MSC/VLR of the 3G network, the UE displays the GMM information, EMM information message or the network name notified by the MMinformation message. In this case, the network name displayed by the UE when the voice service in the CS domain is triggered may be inconsistent with the network name displayed when the UE switches to the LTE or 3G network.

For another example, when the UE is performing a voice service in the CS domain of the 2G network or the 3G network, the network name displayed by the UE may be the network name of the 2G network or the 3G network. However, when the UE needs to perform CS handover (CShandover, CS HO) in the process of performing voice service continuity to switch to another 2G network or 3G network, the UE will use the PLMN of the 2G network or 3G network after the handover. The ID shows the corresponding network name, or if the UE receives the GMMinformation message sent by the SGSN/MME of the 2G network or 3G network, or if the UE receives the MM information message sent by the MSC/VLR of the 2G network or 3G network, the UE Displays the name of the network notified by GMM information or MM information. In this case, the network name displayed by the UE when the voice service in the CS domain is triggered may be inconsistent with the network name displayed when the UE switches to another 2G network or 3G network.

In view of the above problems, another embodiment of the present invention provides a method for displaying a network name. It should be noted that the method of this embodiment may be executed after step 230 in the above embodiment, for example, step 240, or may be executed independently of the above embodiment. As shown in Figure 3, this embodiment includes the following steps.

Step 310, the first mobility management device in the first network acquires first network name information, where the first network name information is the network name currently displayed by the user equipment UE and/or the network name currently displayed by the UE The public land mobile network identifier PLMN ID corresponding to the name, the first network is the network currently registered by the UE, or the network of the two networks currently jointly registered by the UE.

Step 320, if the UE changes to the second network during service execution, the first mobility management device sends the first network name information to the second mobility management device in the second network, so that the The second mobility management device sends the network name corresponding to the first network name information to the UE for display.

In this embodiment, the first mobility management device sends the information of the network name currently displayed by the UE to the second mobility management device in the second network, and the mobility management device of the second network sends the network name The information is sent to the UE for display, so that the network name displayed by the UE is the same as the previously displayed network name.

Correspondingly, to address the above problem, another embodiment of the present invention provides a method for displaying a network name, where the method is executed by a second mobility management device in the second network. As shown in Fig. 4, this embodiment includes the following steps.

Step 410: If the user equipment UE is performing a service on the first network, and the UE changes from the first network to the second network, the second mobility management device in the second network receives the first network The network name information sent by the first mobility management device in the network, wherein the network name information is the network name currently displayed by the UE and/or the public land mobile network identifier PLMN corresponding to the network name currently displayed by the UE ID.

Step 420, the second mobility management device sends the network name corresponding to the network name information to the UE for display.

In this embodiment, the first mobility management device sends the information of the network name currently displayed by the UE to the second mobility management device in the second network, and the mobility management device of the second network sends the network name The information is sent to the UE for display, so that the network name displayed by the UE is the same as the previously displayed network name.

Correspondingly, aiming at the above problem, another embodiment of the present invention provides a method for displaying a network name. As shown in Fig. 5, this embodiment includes the following steps.

Step 510, the first mobility management device in the first network acquires network name information corresponding to the network name currently displayed by the UE.

Wherein, the network name information is a network name currently displayed by the UE and/or a PLMN ID corresponding to the network name currently displayed by the UE, and the first network is a network currently registered by the UE. Wherein, the UE may register with two networks at the same time, for example, register with two networks through a joint attach procedure, such as a 2G or 3G network, and an LTE network.

The first mobility management device may acquire the network name information corresponding to the network name currently displayed by the UE in various ways.

For example, after the UE successfully registers with the network, the UE will display the network name of the registered network, where the network name displayed by the UE can be displayed according to the network name information sent by the mobility management device, as in the above embodiment or The method described in the background art. In this case, when the UE successfully registers with the first network, the first mobility management device will send network information to the UE. Therefore, the first mobility management device can obtain the network information sent by itself. The network name corresponding to the name information.

Alternatively, the UE may also display the network name according to pre-configuration. In this case, in order to keep the network name information displayed by the UE recorded by the first mobility management device consistent with the network name actually displayed by the UE, the first mobility management device will have the same configuration as the UE side, so that the first The mobility management device may acquire the identifier of the PLMN corresponding to the network name displayed by the UE according to the configuration.

Wherein, the UE displays the network name according to its own configuration. There are multiple implementations for the configuration. For example, the configuration may be: the UE displays the network name corresponding to the PLMN identifier of the registered network, or the The UE displays the network name and the like corresponding to a predetermined PLMN identifier among the acquired multiple PLMN identifiers. However, no matter what the configuration is, the same configuration will exist on the mobility management device.

It should be noted that, for different networks, the first mobility management device may be different, for example, it may be an MME, an SGSN, or an MSC server.

For example, the first mobility management device is an MME. After the UE executes the combined attach procedure or the combined tracking area update procedure, the UE will receive the network name to be displayed sent by the MME through EMMinformation or the combined attach accept message (combined attachAccept) or combined location Update the PLMNID sent by the combined tracking area Accept message, and display the network name corresponding to the received PLMN ID or display the received network name, wherein the PLMN identifier is the PLMN identifier of the PS network to which the MME belongs ( That is, the LTE PLMN ID), or the PLMN ID is the PLMN ID of the CS network registered by the MME through the MSC server (ie, the CS PLMN ID). The MME may determine the PLMN identifier as the PLMN identifier corresponding to the network name displayed by the UE according to the PLMN identifier sent to the UE. Or the MME does not send mobility management information to the UE, and the UE displays the network name according to its own configuration. At this time, the MME also determines the PLMN identifier corresponding to the network name displayed by the UE according to the same configuration on the MME. Alternatively, the MME may determine the network name displayed by the UE according to the network name sent to the UE.

In another example, the mobility management device is an SGSN or an MSC server. The SGSN or MSC server carries the network name information in the GMM information or MM Information message and sends it to the UE according to the registered PLMN identifier, and the UE displays the network name to the user according to the received network name. Wherein, the PLMN identifier is the PLMN identifier registered by the SGSN or the MSC server. Alternatively, the SGSN or the MSC server may determine the network name displayed by the UE according to the network name sent to the UE.

Of course, the mobility management device may also obtain network name information in other ways, for example, by interacting with the UE. Any method capable of obtaining the network name information can be applied in the embodiment of the present invention.

Step 520: Change the UE to a second network during service execution, the first mobility management device sends the network name information to a second mobility management device in the second network, and the second mobility management device sends The network name corresponding to the network name information is sent to the UE, and the UE displays the received network name.

Specifically, the UE falls back to the second network during the execution of the CSFB service, the first mobility management device sends the network name information to the second mobility management device, and the second mobility management device sends the network name information The corresponding network name is sent to the UE, and the UE displays the received network name. In this case, the first network is an LTE network, and the second network is a CS domain network. If the UE is also jointly attached to a third network when attaching to the LTE, the second network may be the same as or different from the third network.

Alternatively, the UE is handed over to the second network during voice service execution, the first mobility management device sends the network name information to the second mobility management device, and the second mobility management device corresponds the network name information to The network name of the network is sent to the UE, and the UE displays the received network name. In this case, the first network and the second network may be one of an LTE network, a 2G network, and a 3G network, and the first network is different from the second network. If the UE also jointly attaches to a third network when attaching to the first network, the second network may be the same as or different from the third network.

For example, if the first network is an LTE network, the second network is a 2G network or a 3G network. After the UE switches from the first network or falls back to the second network, the MSC server or SGSN in the second network sends mobility management information (such as MM Information or GMM Information) to the UE, and the mobility management information Carrying the network name, the UE displays that the network name has been received, so that the UE still keeps the displayed network name unchanged, and does not display the network name of the network after switching or falling back.

Wherein, the second mobility management device may obtain the corresponding network name according to the network name information, and then send it to the UE, for example,

If the network name information is the network name currently displayed by the UE, the second mobility management device obtains the network name directly according to the network name information, and sends the network name to the UE;

If the first network name information is the PLMNID corresponding to the network name currently displayed by the UE, the second mobility management device may obtain the network name corresponding to the PLMN ID according to the PLMN ID, and send it to the UE. Wherein, the second mobility management device pre-stores the corresponding relationship between each PLMN ID and the network name. Of course, the corresponding relationship may also be acquired in other ways. or,

If the first network name information is the network name currently displayed by the UE and the PLMN ID corresponding to the network name currently displayed by the UE, the second mobility management device may also obtain the network name directly according to the network name information , and send it to the UE. .

Optionally, the first mobility management device sends the network name information to the second mobility management device in multiple ways. For example, the first mobility management device sends a request message to the second mobility management device, and the request message includes the network name information; wherein, the request message includes but not limited to a location update request message or a service request message.

In the first example, when the UE performs the CSFB service, the MME may carry the network name information in a location update request message (location update request) sent to the MSC server.

In the second example, the UE is the called party of the CSFB voice service, and the MME may carry the network name information in the service request message (service request) sent to the MSCserver; or, the UE is the calling party of the CSFB voice service, and the MME The network name information may be carried in a service request message or other request messages sent to the MSC server.

In the third example, before the UE starts to execute the CSFB service, the first MSC server serves the UE, where the first MSC server is a mobile management device corresponding to the first 2G or first 3G network, and the first 2G Or the first 3G network is the CS domain network in the network jointly registered by the UE. When the UE is the called party or the calling party of the CSFB voice service, the UE falls back to the second MSC server, and the second MSC server serves the UE in the second 2G or second 3G network. If the first MSC server is different from the second MSC server, the second MSC server needs to obtain the first network name information from the first MSC server. In this case, the second MSC server acquires the network name information from the first MSC VLR by "sending an identification message (send identification message)".

It should be pointed out that the embodiment of the present invention is not limited to CSFB voice service, but also includes all CSFB services, wherein the so-called CSFB service includes CSFB voice service, CSFB location control service (LCS) service, CSFB call independent supplementary service , CISS) business, and one of CSFB short message services. Other CSFB services are the same as the CSFB voice services, and will not be described here.

In the fourth example, when the UE performs a voice over internet protocol (VoIP) service on the LTE network, if the VoIP service is switched from the LTE network to another PS domain network, such as high speed uplink packet access technology (high speed uplink packet access technology) access, HSUPA) network, the MME carries the network name information in the handover message sent to the SGSN.

In the fifth example, when the UE performs a VoIP voice service on a 3G network (such as an HSUPA network), it performs a packet switched (packet switched, PS) handover (handover, HO) and switches to LTE. During the handover process, the SGSN sends the MME The network name information is carried in the handover message.

In the sixth example, when the UE performs VoIP voice services on the LTE network, performs single radio voice call continuity (single radio voice call continuity, SRVCC), and switches to the CS domain of 2G or 3G, the SGSN or MME can send the message to the MSC server The PS to CS handover message carries the network name information.

In the seventh example, when the UE performs CS voice services on the 2G or 3G network, and needs to perform reverse single access voice call continuity (reverse single radio voice call continuity, SRVCC) during the voice service continuity process, handover to LTE or In the HSPA network, the MSC server carries the network name information in the CS to PS handover message sent to the SGSN or MME.

In the eighth example, when the UE performs CS voice service on the 2G or 3G network, and performs CS handover (CS handover) during voice service continuity, and switches to another 2G or 3G network, the MSCserver sends the CS voice service to the MSCserver The to CS switching message carries the network name information.

It should be noted that, in the above example, the network name information may carry a newly added information unit in the above message, and the newly added information unit is specially used to store the network name information.

It should be noted that the above-mentioned first mobility management device and second mobility management device may include but not limited to MSC/VLR (MSC server), Serving GPRS Support Node (Serving GPRS Support Node, SGSN), or MME, wherein the MSC server may It is the MSC server of SRVCC, it can also be the MSC server of rSRVCC, and it can also be the MSC server of CSFB.

In addition, if the second network is a pure PS domain network, such as an LTE network, the method in this embodiment ends, and the first mobility management device is a mobility management device in the pure PS domain network; if the second The second network is a network where the CS domain and the PS domain coexist, such as a 2G or 3G network, and the first mobility management device may be a mobility management device in the PS domain network or a mobility management device in the CS domain network. In this implementation The method of the example also includes step 530.

In this embodiment, by sending the network name information to the network device in the network after the UE is changed, the network device can send the network name information to the UE, thereby keeping the network name displayed by the UE and the network name displayed before the change. Consistent, enhance the user experience.

Step 530, the first mobility management device sends an instruction to a third mobility management device in the second network not to send network name information to the UE.

Wherein, the first mobility management device may instruct the third mobility management device in the second network not to send the network name and/or the PLMN ID corresponding to the network name to the UE by sending a request message, so The request message includes indication information, which is used to instruct the second mobility management device not to send the network name and/or the PLMN ID corresponding to the network name, and specifically may be to instruct the second mobility management device in the second network Mobility Management Information messages are not sent.

Wherein, the request message includes but not limited to location update request message, service request message, handover request message (forward relocation request message), context response message (context response), context request message (context request), location update request message (location update request message) request) or business request message (service request).

In the first example, when the UE executes the CSFB service, the MME may carry the indication information in the location update request message sent to the MSC server.

In the second example, the UE is the called party in the CSFB voice service, and the MME may carry the indication information in the service request sent to the MSC server. Alternatively, when the UE is the calling party of the CSFB voice service, the MME may carry the indication information in the service request or other request messages sent to the MSC server.

In the third example, when the UE is the calling party of the CSFB voice service and performs the location update process, the SGSN obtains the UE context from the MME, and the MME may carry the indication information in the context request sent to the SGSN.

In the fourth example, before the UE starts to perform the CSFB service, the first MSC server serves the UE, wherein the first MSC server is a mobility management device corresponding to the first 2G or first 3G network, and the first 2G Or the first 3G network is the CS domain network in the network jointly registered by the UE. When the UE is the called party or calling party of the CSFB voice service, if the first MSC server and the second MSC server are different, the first MSC server sends the indication information to the second MSC server through a "send identification" message.

In the fifth example, when the UE performs VoIP voice service on the LTE network, executes SRVCC, and switches to the 2G or 3G CS domain, the SGSN or MME carries the indication information in the PS to CS switching message sent to the MSC server.

In the sixth example, when the service is a voice service, the MME or SGSN carries the indication information in the handover message sent to the MSC server.

In the seventh example, when the service is the voice service, the MME carries the indication information in a PS to CS switching message sent to the MME.

It should be noted that, in the above example, the indication information may carry a newly added information unit in the above message, and the newly added information unit is specially used to store the indication information.

In addition, if the second mobility management device is a mobility management device in a PS domain network, the third mobility management device is a mobility management device in a CS domain network, and if the second mobility management device is a mobility management device in a CS domain network mobility management device, the third mobility management device is a mobility management device in the PS domain network.

In this embodiment, by sending the network name information to a corresponding mobility management device in the CS domain or PS domain in the 2G or 3G network after the UE changes, the network name information is sent to another corresponding mobility management device in the CS domain or PS domain. Sending the indication information enables the UE to obtain only the name information sent by one mobility management device, thereby keeping the network name displayed by the UE consistent with the network name displayed before the change, and improving user experience.

Based on the method provided by the above-mentioned embodiment, this embodiment also provides a network device, which can execute the method for displaying a network name in the above-mentioned first embodiment of the present invention, and this embodiment only implements the structure of the network device For a brief description, specific principles can be combined with reference to the method embodiments. As shown in FIG. 6 , the network device includes an acquiring module 601 and a sending module 602 .

An obtaining module 601, configured to obtain first network name information, where the first network name information is a network name currently displayed by a user equipment UE and/or a public land mobile network corresponding to the network name currently displayed by the UE Identify the PLMN ID, the first network is the network currently registered by the UE, or the network of the two networks currently jointly registered by the UE;

The sending module 602 is configured to send the first network name information obtained by the obtaining module 601 to a second mobility management device in the second network if the UE changes to the second network during the service process so that the second mobility management device sends the network name corresponding to the first network name information to the UE for display.

Since this embodiment can implement the methods in the above embodiments, the technical effects that can be obtained can refer to the descriptions in the above embodiments, and will not be repeated here.

Further, if the second network is a 2G network, the sending module 602 is further configured to, after sending the first network name information to the second mobility management device in the second network, instruct the second The third mobility management device in the network does not send the second network name information to the UE; wherein the second network name information is any network name and/or the PLMN ID corresponding to any network, and the third mobile The management device is a mobility management device in the circuit switching domain in the 2G, and the second mobility management device is a mobility management device in the packet switching domain in the 2G network; or, the third mobility management device is the The mobility management device of the packet switching domain in the 2G network, the second mobility management device is the mobility management device of the circuit switching domain in the 2G network.

Alternatively, if the second network is a 3G network, the sending module 602 is further configured to, after sending the first network name information to the second mobility management device in the second network, instruct the second network to The third mobility management device in the system does not send the second network name information to the UE; wherein, the second network name information is any network name and/or the PLMN ID corresponding to any network, and the third mobility management The device is a mobility management device in the circuit switching domain in the 3G, and the second mobility management device is a mobility management device in the packet switching domain in the 3G network; or, the third mobility management device is the 3G The mobility management device of the packet switching domain in the network, the second mobility management device is the mobility management device of the circuit switching domain of the 3G network.

Further, the sending module 602 is specifically configured to instruct the third mobility management device in the second network not to send the second network name information to the UE in the following manner: instruct the third mobility management device through a request message Do not send the second network name information to the UE, where the request message includes indication information, and the indication information is used to instruct a third mobility management device not to send the second network name information to the UE .

The sending module 602 is specifically configured to send the request message that includes the indication information, where the indication information is specifically used to instruct the third mobility management device not to send the Universal Mobile Telecommunications System Terrestrial Radio Access network E-UTRAN mobility management information EMM information message, or general packet radio service GPRS mobility management information GMM information or mobility management information MM information message.

Further, if the service is a CSFB service, the sending module 602 is specifically configured to send the first network name information to the second mobility management device in the following manner:

Send the first network name information to the second mobility management device through an update request message or a service request message, wherein the first mobility management device is a first MME, and the second mobility management device is a first MSCserver ;or

Sending the first network name information to the second mobility management device by sending an identification message, where the first mobility management device is a first MSC server, and the second mobility management device is a second MSC server.

If the service is a voice service, the sending module 602 is specifically configured to send the first network name information to the second mobility management device in the following manner:

Sending the first network name information to the second mobility management device through a handover message, where the first network is a first PS domain network, and the second network is a second PS domain network; or

sending the first network name information to the second mobility management device through a packet switching to circuit switching PS to CS handover message, where the first network is the first packet switching domain network, and the second network is a second circuit-switched domain network; or

sending the first network name information to the second mobility management device through a circuit switching to packet switching CS to PS handover message, where the first network is the first circuit switching domain network, and the second network is the said second packet switched domain network; or

sending the first network name information to the second mobility management device through a CS to CS handover message, where the first network is the first CS domain network, and the second network is the second circuit-switched domain network.

Further, if the service is a circuit switched fallback CSFB service, the sending module 602 is specifically configured to instruct the third mobility management device not to send the second network name information to the UE through a request message in the following manner:

Instructing the third mobility management device not to send the second network name information to the UE through a location update request message or a service request message, wherein the request message is the location update request message or the service request message , the first network is a long term evolution network, the first mobility management device is a first MME, the second mobility management device is a second SGSN, and the third mobility management device is a second MSC server; or

Instructing the third mobility management device not to send the second network name information to the UE through a context request message or a handover request message, where the request message is the context request message or the handover request message, and The first mobility management device is the first MME, the second mobility management device is the second MSC server, and the third mobility management device is the second SGSN; or

If the service is a voice service, the sending module 602 is specifically configured to instruct the third mobility management device not to send the second network name information to the UE through a request message in the following manner:

Instruct the third mobility management device not to send the second network name information to the UE by sending a handover message, wherein the request message is the handover message, and the first mobility management device is the first MME, the second mobility management device is the second SGSN, and the third mobility management device is the second MSC server; or

Instruct the third mobility management device not to send the second network name information to the UE by sending a handover message, wherein the request message is the handover message, and the first mobility management device is the first SGSN, the second mobility management device is the second MME, and the third mobility management device is the second MSC server; or

instructing the third mobility management device not to send the second network name information to the UE by sending a packet switched to circuit switched PS to CS handover message, where the request message is the PS to CS handover message, and the The first mobility management device is the first MME, the second mobility management device is the second MSC server, and the third mobility management device is the second MME; or

instructing the third mobility management device not to send the second network name information to the UE by sending a PS to CS handover message, where the request message is the PS to CS handover message, and the first mobility management device The device is the first MME, the second mobility management device is the second SGSN, and the third mobility management device is the second MSC server.

In addition, the network device may further include a storage module 603;

The storage module 603 is configured to store a first configuration, where the first configuration is a predetermined network name and/or a PLMN ID corresponding to the predetermined network name, and the first configuration is the same as the The second configuration is the same, and the UE is the network name displayed according to the second configuration in the UE; the acquiring module 601 is specifically configured to acquire the first network name information in the following manner: acquire the storage module the stored first network name information corresponding to the first configuration; or

The sending module 602 is further configured to: send the network name currently displayed by the UE to the UE; the storage module 603 is configured to store the network name sent by the sending module 602, and the acquiring module is to set To obtain the first network name information in the following manner: obtain the first network name information corresponding to the network name stored in the storage module 603 .

The network device in this embodiment can execute the method in the foregoing embodiment, and for details, refer to the description in the foregoing embodiment. Moreover, the technical effects that can be obtained by the network device are the same as those of the foregoing embodiments, and will not be repeated here.

In addition, an embodiment of the present invention also provides a communication system, including the two network devices described in the above embodiments. For the specific structure and function of the network device, reference may be made to the foregoing embodiments, and details are not repeated here.

Based on the methods provided in the above embodiments, this embodiment also provides a network device that can execute the method of the embodiments of the present invention. This embodiment only briefly describes the structure of the network device. For specific principles, see method described in the examples. As shown in FIG. 7 , the network device includes a receiving module 701 and a sending module 702 .

The receiving module 701 is configured to receive network name information sent by the first mobility management device in the first network if the user equipment UE changes from the first network to the second network during service execution on the first network , wherein the network name information is the network name currently displayed by the UE and/or the public land mobile network identifier PLMN ID corresponding to the network name currently displayed by the UE;

The sending module 702 is configured to send the network name corresponding to the network name information received by the receiving module 701 to the UE for display.

If the service is a circuit switched fallback CSFB service, the receiving module 701 is specifically configured to receive the network name information sent by the first mobility management device in the following manner:

Receive the network name information sent by the first mobility management device through an update request message or a service request message, wherein the first mobility management device is a mobility management entity MME, and the second mobility management device is a mobility switch The second MSC server of the central server; or

receiving the network name information sent by the first mobility management device by sending an identification message, where the first mobility management device is the first MSC server, and the second mobility management device is the second MSC server.

The service is a voice service;

The receiving module 701 is specifically configured to receive the network name information sent by the first mobility management device in the following manner, including:

receiving the network name information sent by the first mobility management device through a handover message, where the first network is a first PS domain network, and the second network is a second PS domain network; or

receiving the network name information sent by the first mobility management device through a packet switching to circuit switching PS to CS handover message, where the first network is the first packet switching domain network, and the second network is a second circuit-switched domain network; or

receiving the network name information sent by the first mobility management device through a circuit switched to packet switched CS to PS handover message, wherein the first network is a first circuit switched domain network, and the second network is the a second packet switched domain network; or

receiving the network name information sent by the first mobility management device through a circuit switching to circuit switching CS to CS handover message, where the first network is the first circuit switching domain network, and the second network is The second circuit switched domain network.

The network device in this embodiment can execute the method in the foregoing embodiment, and for details, refer to the description in the foregoing embodiment. Moreover, the technical effects that can be obtained by the network device are the same as those of the foregoing embodiments, and will not be repeated here.

Based on the methods provided in the foregoing embodiments, this embodiment also provides an MME. The MME is an MME in the first network, and can execute the method of the above-mentioned embodiment of the present invention. This embodiment only briefly describes the structure of the MME. For specific principles, refer to the description in the above-mentioned method embodiment. As shown in FIG. 8 , the MME includes a judging module 801 and a sending module 802 .

The judging module 801 is configured to judge the operator to which the PLMN ID corresponding to the first network belongs and the operator to which the PLMNID corresponding to the second network belongs during the joint attachment procedure or the joint tracking domain location update procedure. whether the quotients are the same; if not, then instruct the sending module 802 to send the network name information;

The sending module 802 is configured to send the network name information to a user equipment UE, so that the UE displays a network name corresponding to the network name information, where the first network and the second network are in In the joint attach procedure or the joint tracking domain update procedure, the UE jointly registers the network, the first network is a long term evolution LTE network, and the second network is a 2G network or a 3G network.

Further, the sending module 802 is specifically configured to send the network name information to the UE in the following manner: send the EMM information message to the UE through a universal mobile communication system terrestrial radio access network E-UTRAN mobility management information message The network name information.

Further, the sending module 802 is further configured to, after sending the network name information to the UE, if the UE changes to the second network during service execution, send the network name information to the The first mobility management device of the second network, so that the first mobility management device of the second network sends the network name corresponding to the network name information to the UE for display; or

The sending module 802 is further configured to, after sending the network name information to the UE, if the UE changes to the second network during service execution, send the network name information to the third network The second mobility management device of the third network, so that the second mobility management device of the third network sends the network name corresponding to the network name information to the UE for display.

The MME in this embodiment can execute the method in the above embodiment, and for details, refer to the description in the above embodiment. Moreover, the technical effects that can be obtained by the MME are the same as those of the foregoing embodiments, and will not be repeated here.

Another embodiment of the present invention also provides a network device, where the network device is the first mobility management device in the first network. The network device can execute the method for displaying the network name in the above-mentioned embodiments of the present invention. This embodiment only briefly describes the structure of the network device. For specific principles, refer to the descriptions in the above-mentioned method embodiments. As shown in FIG. 9 , the user equipment UE includes a processor 901 and a transmitter 902 .

The processor 901 is configured to acquire first network name information, where the first network name information is a network name currently displayed by a user equipment UE and/or a public land mobile network corresponding to the network name currently displayed by the UE Identify the PLMN ID, the first network is the network currently registered by the UE, or the network of the two networks currently jointly registered by the UE; and

The sender 902 is configured to send the first network name information obtained by the processor 901 to a second mobility management device in the second network if the UE changes to the second network during the service process, so as to enabling the second mobility management device to send the network name corresponding to the first network name information to the UE for display.

The network device in this embodiment can execute the method in the foregoing embodiment, and for details, refer to the description in the foregoing embodiment. Moreover, the technical effects that can be obtained by the network device are the same as those of the foregoing embodiments, and will not be repeated here.

Further, if the second network is a 2G network, the sender 902 is further configured to, after sending the first network name information to the second mobility management device in the second network, instruct the second The third mobility management device in the network does not send the second network name information to the UE; wherein the second network name information is any network name and/or the PLMN ID corresponding to any network, and the third mobile The management device is a mobility management device in the circuit switching domain in the 2G, and the second mobility management device is a mobility management device in the packet switching domain in the 2G network; or, the third mobility management device is the The mobility management device of the packet switching domain in the 2G network, the second mobility management device is the mobility management device of the circuit switching domain in the 2G network.

Or, if the second network is a 3G network, the sender 902 is further configured to, after sending the first network name information to the second mobility management device in the second network, instruct the second network to The third mobility management device in the system does not send the second network name information to the UE; wherein, the second network name information is any network name and/or the PLMN ID corresponding to any network, and the third mobility management The device is a mobility management device in the circuit switching domain in the 3G, and the second mobility management device is a mobility management device in the packet switching domain in the 3G network; or, the third mobility management device is the 3G The mobility management device of the packet switching domain in the network, the second mobility management device is the mobility management device of the circuit switching domain of the 3G network.

Further, the sender 902 is specifically configured to instruct the third mobility management device in the second network not to send the second network name information to the UE in the following manner: instruct the third mobility management device through a request message Do not send the second network name information to the UE, where the request message includes indication information, and the indication information is used to instruct a third mobility management device not to send the second network name information to the UE .

Further, the transmitter 902 is specifically configured to send the request message that includes the indication information, where the indication information is specifically used to instruct the third mobility management device not to send a general mobile communication message to the UE. System terrestrial radio access network E-UTRAN mobility management information EMM information message, or general packet radio service GPRS mobility management information GMM information or mobility management information MM information message.

If the service is a circuit switched fallback CSFB service, the sender 902 is specifically configured to send the first network name information to the second mobility management device in the following manner:

Send the first network name information to the second mobility management device through an update request message or a service request message, wherein the first mobility management device is a first MME, and the second mobility management device is a second MSCserver ;or

Sending the first network name information to the second mobility management device by sending an identification message, where the first mobility management device is a first MSC server, and the second mobility management device is a second MSC server.

If the service is a voice service, the sender 902 is specifically configured to send the first network name information to the second mobility management device in the following manner:

Sending the first network name information to the second mobility management device through a handover message, where the first network is a first PS domain network, and the second network is a second PS domain network; or

sending the first network name information to the second mobility management device through a packet switching to circuit switching PS to CS handover message, where the first network is the first packet switching domain network, and the second network is a second circuit-switched domain network; or

sending the first network name information to the second mobility management device through a circuit switching to packet switching CS to PS handover message, where the first network is the first circuit switching domain network, and the second network is the said second packet switched domain network; or

sending the first network name information to the second mobility management device through a CS to CS handover message, where the first network is the first CS domain network, and the second network is the second circuit-switched domain network.

If the service is a circuit switched fallback CSFB service, the sender 902 is specifically configured to instruct the third mobility management device not to send the second network name information to the UE through a request message in the following manner:

Instructing the third mobility management device not to send the second network name information to the UE through a location update request message or a service request message, wherein the request message is the location update request message or the service request message , the first network is a long term evolution network, the first mobility management device is a first MME, the second mobility management device is a second SGSN, and the third mobility management device is a second MSC server; or

Instructing the third mobility management device not to send the second network name information to the UE through a context request message or a handover request message, where the request message is the context request message or the handover request message, and The first mobility management device is the first MME, the second mobility management device is the second MSCserver, and the third mobility management device is the second SGSN; or

If the service is a voice service, the sender 902 is specifically configured to instruct the third mobility management device not to send the second network name information to the UE through a request message in the following manner:

Instruct the third mobility management device not to send the second network name information to the UE by sending a handover message, wherein the request message is the handover message, and the first mobility management device is the first MME, the second mobility management device is the second SGSN, and the third mobility management device is the second MSC server; or

Instructing the third mobility management device not to send the second network name information to the UE by sending a handover message, wherein the request message is the handover message, the first mobility management device is the first SGSN, The second mobility management device is a second MME, and the third mobility management device is the second MSC server; or

instructing the third mobility management device not to send the second network name information to the UE by sending a packet switched to circuit switched PS to CS handover message, where the request message is the PS to CS handover message, and the The first mobility management device is the first MME, the second mobility management device is the second MSC server, and the third mobility management device is the second MME; or

instructing the third mobility management device not to send the second network name information to the UE by sending a PS to CS handover message, where the request message is the PS to CS handover message, and the first mobility management device The device is the first MME, the second mobility management device is the second SGSN, and the third mobility management device is the second MSC server.

In addition, the network device further includes a memory 903;

The memory 903 is configured to store a first configuration, where the first configuration is a predetermined network name and/or a PLMN ID corresponding to the predetermined network name, and the first configuration is the same as the first configuration in the UE. The two configurations are the same, and the UE is the network name displayed according to the second configuration in the UE; the processor 901 is specifically configured to obtain the first network name information in the following manner: obtain the first network name information stored in the memory 903 The first network name information corresponding to the first configuration; or

The transmitter 902 is further configured to: send the network name currently displayed by the UE to the UE; the storage module is configured to store the network name sent by the transmitter, and the processor 901 is configured to The first network name information is obtained as follows: the first network name information corresponding to the network name stored in the memory 903 is obtained.

Another embodiment of the present invention also provides a network device, where the network device is the second mobility management device in the second network. The network device can execute the method for displaying the network name in the above-mentioned embodiments of the present invention. This embodiment only briefly describes the structure of the network device. For specific principles, refer to the descriptions in the above-mentioned method embodiments. As shown in FIG. 10 , the user equipment UE includes a receiver 1001 and a transmitter 1002 .

The receiver 1001 is configured to receive the network name information sent by the first mobility management device in the first network if the user equipment UE changes from the first network to the second network during service execution on the first network , wherein the network name information is the network name currently displayed by the UE and/or the public land mobile network identifier PLMN ID corresponding to the network name currently displayed by the UE;

The sender 1002 is configured to send the network name corresponding to the network name information received by the receiver 1001 to the UE for display.

If the service is a circuit switched fallback CSFB service, the receiver 1001 is specifically configured to receive the network name information sent by the first mobility management device in the following manner:

Receive the network name information sent by the first mobility management device through an update request message or a service request message, wherein the first mobility management device is a mobility management entity MME, and the second mobility management device is a mobility switch The second MSC server of the central server; or

receiving the network name information sent by the first mobility management device by sending an identification message, where the first mobility management device is the first MSC server, and the second mobility management device is the second MSC server.

If the service is a voice service, the receiver 1001 is specifically configured to receive the network name information sent by the first mobility management device in the following manner, including:

receiving the network name information sent by the first mobility management device through a handover message, where the first network is a first PS domain network, and the second network is a second PS domain network; or

receiving the network name information sent by the first mobility management device through a packet switching to circuit switching PS to CS handover message, where the first network is the first packet switching domain network, and the second network is a second circuit-switched domain network; or

receiving the network name information sent by the first mobility management device through a circuit switched to packet switched CS to PS handover message, wherein the first network is a first circuit switched domain network, and the second network is the a second packet switched domain network; or

receiving the network name information sent by the first mobility management device through a circuit switching to circuit switching CS to CS handover message, where the first network is the first circuit switching domain network, and the second network is The second circuit switched domain network.

The network device in this embodiment can execute the method in the foregoing embodiment, and for details, refer to the description in the foregoing embodiment. Moreover, the technical effects that can be obtained by the network device are the same as those of the foregoing embodiments, and will not be repeated here.

In addition, an embodiment of the present invention also provides a communication system, including the two network devices described in the above embodiments. For the specific structure and function of the network device, reference may be made to the foregoing embodiments, and details are not repeated here.

Another embodiment of the present invention also provides an MME, where the MME is a first mobility management device in a first network. The MME can execute the method for displaying a network name in the above-mentioned embodiment of the present invention. This embodiment only briefly describes the structure of the MME. For specific principles, refer to the description in the above-mentioned method embodiment. As shown in FIG. 11 , the user equipment UE includes a processor 1101 and a transmitter 1102 .

Processor 1101, configured to determine the operator to which the PLMN ID corresponding to the first network belongs and the operator to which the PLMNID corresponding to the second network belongs during the joint attachment procedure or the joint tracking domain location update procedure. whether the quotients are the same; if not, instruct the sender 1102 to send the network name information;

The transmitter 1102 is configured to send the network name information to a user equipment UE, so that the UE displays a network name corresponding to the network name information, where the first network and the second network are in In the joint attach procedure or the joint tracking domain update procedure, the UE jointly registers the network, the first network is a long term evolution LTE network, and the second network is a 2G network or a 3G network.

Further, the transmitter 1102 is specifically configured to send the network name information to the UE in the following manner: sending the EMM information message to the UE through a universal mobile communication system terrestrial radio access network E-UTRAN mobility management information message The network name information.

Further, the transmitter 1102 is further configured to, after sending the network name information to the UE, if the UE changes to the second network during service execution, send the network name information to the The first mobility management device of the second network, so that the first mobility management device of the second network sends the network name corresponding to the network name information to the UE for display; or

The transmitter 1102 is further configured to, after sending the network name information to the UE, if the UE changes to the second network during service execution, send the network name information to the third network The second mobility management device of the third network, so that the second mobility management device of the third network sends the network name corresponding to the network name information to the UE for display.

It should be noted that, in addition to the above modules, the network equipment and MME provided by the above-mentioned embodiments of the present invention may also include radio frequency processors, power controllers, and other components, and the embodiments of the present invention are not limited to only include the above modules.

It should be noted that in the above embodiments of the network device and MME, the division of each functional module is only an example. In actual applications, the above functions can be combined according to needs, such as the configuration requirements of corresponding hardware or the convenience of software implementation. Allocation is accomplished by different functional modules, that is, the internal structures of the user equipment and the base station are divided into different functional modules to complete all or part of the functions described above.

Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above-mentioned embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage medium can include: Read Only Memory (ROM, Read Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk, etc.

The method, user equipment, and base station provided by the embodiment of the present invention are described above in detail. In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above embodiment is only used to help understand the method of the present invention. and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and scope of application. limits.

Claims (6)

1. A method of displaying a network name, comprising:

in a joint attachment process or a joint tracking domain location updating process, a Mobility Management Entity (MME) in a first network judges whether an operator to which a public land mobile network identifier (PLMN ID) corresponding to the first network belongs is the same as an operator to which a PLMN ID corresponding to a second network belongs, wherein the joint attachment process or the joint tracking domain location updating process refers to a process in which User Equipment (UE) is attached to an LTE network and a 2G network, or is attached to the LTE network and the 3G network in a joint manner;

if not, the MME sends network name information to the UE so that the UE displays a network name corresponding to the network name information, wherein the first network and the second network are networks which are jointly registered by the UE in the joint attachment process or the joint tracking domain updating process, the first network is a Long Term Evolution (LTE) network, and the second network is a 2G network or a 3G network;

after the MME sends the network name information to the UE, the method further includes: the UE changes to the second network in the process of executing the service, and the MME sends the network name information to first mobile management equipment of the second network so that the first mobile management equipment of the second network sends the network name corresponding to the network name information to the UE for displaying; or

After the MME sends the network name information to the UE, the method further includes: and the UE is changed to a third network in the process of executing the service, and the MME sends the network name information to second mobile management equipment of the third network so that the second mobile management equipment of the third network sends the network name corresponding to the network name information to the UE for displaying.

2. The method of claim 1,

the MME sending the network name information to the UE, including: and the MME sends the network name information to the UE through an E-UTRAN mobility management information EMM information message of a universal mobile communication system terrestrial radio access network.

3. The method of claim 1,

changing the UE to a second network in the process of executing the service, comprising the following steps: in the process of executing the circuit switched fallback CSFB service, the UE falls back to the second network; or in the process of executing the voice service, the UE is switched to the second network to execute the voice service;

the changing of the service to the third network in the process of executing the service comprises the following steps: in the process of executing the CSFB service, the CSFB service falls back to the third network; or in the process of executing the voice service, the UE is switched to the third network to execute the voice service.

4. The method according to any one of claims 1 to 3,

the network name information includes the network name and/or a PLMN ID corresponding to the network name.

5. A mobility management entity MME, wherein the MME is an MME in a first network, comprising:

a determining module, configured to determine whether an operator to which a public land mobile network identifier (PLMN ID) corresponding to the first network belongs is the same as an operator to which a PLMN ID corresponding to a second network belongs in a joint attach procedure or a joint tracking domain location update procedure; if the two types of network names are different, indicating a sending module to send network name information, wherein the joint attachment process or the joint tracking domain position updating process refers to a process that User Equipment (UE) is attached to an LTE network and a 2G network, or is attached to the LTE network and a 3G network in a joint manner;

the sending module is configured to send the network name information to User Equipment (UE) so that the UE displays a network name corresponding to the network name information, where the first network and the second network are networks in which the UE is jointly registered in the joint attach procedure or the joint tracking domain update procedure, the first network is a Long Term Evolution (LTE) network, and the second network is a 2G network or a 3G network;

the sending module is further configured to send the network name information to the UE, and if the UE changes to the second network during service execution, send the network name information to a first mobility management device of the second network, so that the first mobility management device of the second network sends the network name corresponding to the network name information to the UE for display; or

The sending module is further configured to send the network name information to the UE, and if the UE changes to a third network during service execution, send the network name information to a second mobility management device of the third network, so that the second mobility management device of the third network sends the network name corresponding to the network name information to the UE for display.

6. The mobility management entity of claim 5,

the sending module is specifically configured to send the network name information to the UE as follows: and sending the network name information to the UE through an E-UTRAN mobility management information (EMM information) message of a universal mobile telecommunication system terrestrial radio access network.