CN101534500B - An addressing method, network element equipment and network system - Google Patents

Abstract

The present invention discloses an addressing method, which includes: when a user equipment UE switches between different systems, a first mobility management network element receives an access request message carrying a temporary identifier sent by an access network management network element; The temporary identifier determines the address of the management entity registered before the UE handover, and learns that the network element where the management entity is located before the UE handover is a second mobility management network element; obtains the second mobility management network element A shared ID of the element; sending the shared ID to the access network management network element, where the shared ID is used by the access network management network element to address the second mobility management network element. Using the technical solution of the embodiment of the present invention can ensure that the management entity accessed by the user before handover and the management entity accessed after the handover are on the same mobility management network element, reducing the signaling interaction between management entities of different systems .

Description

An addressing method, network element equipment and network system

technical field

The invention relates to the technical field of communication, in particular to an addressing method, network element equipment and a network system.

Background technique

The core network of the wireless evolved network mainly includes three logical functional bodies: the Mobility Management Entity (MME), the Serving Gateway (S-GW), and the Data Gateway (PDN Gateway, P-GW). Among them, the MME is The mobile management entity is responsible for non-access layer NAS signaling encryption, roaming, tracking and other functions, assigning user temporary identities, security functions, etc., which corresponds to the internal GPRS service support of the current Universal Mobile Telecommunication System (UMTS) The control plane part of the node (Serving GPRS Support Node, SGSN). The S-GW is responsible for the local mobility anchor point and the mobility anchor point within the 3GPP system and information related to lawful interception; the P-GW is responsible for policy enforcement and charging, and functions related to lawful interception.

One requirement of the evolved network is to realize the function of saving signaling or restricting signaling (Idlemode signaling reduction, ISR) in idle mode, which is mainly to reduce the mobility of user equipment (UE) in idle mode between different access networks management process. For example, when the UE switches from the UMTS network to the LTE network, the processing of Inter 3GPP Access System Mobility in Idle State is reduced.

In the prior art, a UE is connected to an LTE network and attached to an MME/SGSN integrated device, and the MME assigns a Globally Unique Temporary Identity (GUTI) to the UE. GUTI is composed of Globally Unique MME Identity (GUMMEI) and MME Temporary User Identity (M-TMSI). When the UE switches from the LTE network to the 2G/3G network, the GUMMEI is regarded as the Old Routing Area Identity (Routing AreaIdentity, RAI), and the M-TMSI is regarded as the P-TMSI. Since the M-TMSI is allocated by the MME, among them The corresponding network resource indicator (Network Resource Indicator, NRI) indicator bit is false information, and the RNC cannot address the SGSN according to the M-TMSI, but selects the SGSN to access according to the network side conditions.

Similarly, the UE accesses the 2G/3G network and attaches to the MME/SGSN integrated device, and the SGSN assigns the P-TMSI to the UE. When the UE switches from the 2G/3G network to the LTE network, the P-TMSI is regarded as the M-TMSI, but the M-TMSI only represents the identity of the mobile user, so the eNodeB cannot address the MME according to the M-TMSI, and The MME access is selected according to the situation on the network side.

In the prior art, when the UE is handed over between networks, it cannot be guaranteed that the management entity accessed after the handover is on the same mobility management network element as the management entity accessed before the handover, so the management entity accessed after the handover cannot be reduced. The signaling interaction between the entity and the management entity accessed before the handover.

Contents of the invention

The technical problem to be solved by the embodiments of the present invention is to provide an addressing method, network element equipment and network system, so that when a user switches between networks, it can ensure that the management entity accessed after the switch is the same as the management entity accessed before the switch. The entity resides on a mobility management network element.

In view of this, embodiments of the present invention provide:

An addressing method, comprising: when a user equipment UE switches between different systems,

The first mobility management network element receives the access request message carrying the temporary identifier sent by the access network management network element;

determining the address of the management entity registered by the UE before the handover according to the temporary identifier, and learning the second mobility management network element where the management entity registered by the UE before the handover is located;

Acquiring a shared ID of the second mobility management network element, where the shared ID indicates that the second mobility management network element is an integrated device;

Sending the shared ID to the access network management network element, where the shared ID is used by the access network management network element to address the second mobility management network element.

An addressing method, which is used when the UE undergoes system handover, including:

The access network management network element receives the location update request sent by the UE, and the location update request carries the temporary identifier assigned by the first management entity, and the first management entity is the management entity registered before the handover of the UE; according to Obtain the address of the second management entity from the pre-stored correspondence between the temporary identifier assigned by the first management entity and the address of the second management entity, and the second management entity and the first management entity are in the second mobility on the management network element;

Address the second mobility management network element according to the acquired address of the second management entity.

An addressing method, which is used when the UE undergoes system handover, including:

The UE acquires a temporary identifier assigned by a first management entity, where the first management entity is the management entity registered before the UE handover;

Obtain a temporary identifier for addressing a second management entity according to the temporary identifier assigned by the first management entity, and the second management entity is a management entity of the system after UE handover; the second management entity and the first management entity The entities are both on the second mobility management network element;

Sending a location update request to the access network management network element, where the location update request includes the temporary identifier used to address the second management entity.

An addressing method, which is used when the UE undergoes system handover, including:

The UE receives the temporary identities allocated by at least two management entities on the mobility management network element, selects the temporary identities allocated by the management entities to be switched into the system, and sends a location update request to the access network management network element, in which the location update request Carrying the selected temporary identifier; the temporary identifier is used by the access network management network element to address the mobility management network element.

A mobility management network element, comprising:

The temporary identification receiving unit is used to receive the access request message carrying the temporary identification sent by the access network management network element;

a mobility management network element determining unit, configured to determine the address of the management entity registered before the UE handover according to the temporary identifier, and learn the second mobility management network element where the management entity registered before the UE handover is located;

A shared ID obtaining unit, configured to obtain the shared ID of the second mobility management network element; the shared ID indicates that the second mobility management network element is a combined device;

A sending unit, configured to send the shared ID to the access network management network element.

An access network management network element, including:

The receiving unit is configured to receive a location update request sent by the UE, where the location update request carries a temporary identifier assigned by a first management entity, and the first management entity is a management entity of the system before the UE handover;

The address obtaining unit is configured to obtain the address of the second management entity according to the pre-stored correspondence between the temporary identifier assigned by the first management entity and the address of the second management entity, and the second management entity is related to the first management entity The entities are both on the second mobility management network element;

The addressing unit is configured to address the second mobility management network element according to the acquired address of the second management entity.

A user equipment, comprising:

The first obtaining unit is configured to obtain a temporary identifier assigned by a first management entity; the first management entity is a management entity of the system before the UE is handed over;

The second acquiring unit is configured to acquire a temporary identifier for addressing a second management entity according to the temporary identifier allocated by the first management entity, where the second management entity is a management entity of the system after UE handover; The second management entity and the first management entity are both located on the second mobility management network element;

A message sending unit, configured to send a location update request to an access network management network element, where the location update request includes the temporary identifier used to address the second management entity.

A user equipment, comprising:

a receiving unit, configured to receive temporary identities allocated by at least two management entities on the mobility management network element;

a selection unit, configured to select a temporary identifier allocated by a management entity to be switched into the system;

A sending unit, configured to send a location update request to an access network management network element, where the location update request carries a selected temporary identifier; the temporary identifier is used by the access network management network element to address the mobility Manage network elements.

One of the above technical solutions has the following beneficial effects:

The first mobility management network element in the embodiment of the present invention can determine the address of the management entity registered before the UE handover according to the temporary identifier in the location update request, and then confirm the second mobility where the management entity registered before the UE handover is located. The management network element obtains the shared ID of the second mobility management network element and sends it to the access network management network element, so that the access network management network element addresses the second mobility management network element according to the shared ID, ensuring that all The accessed management entity and the accessed management entity before handover are on the same mobility management network element, which reduces the signaling interaction between different system management entities.

Another technical solution in the above technical solutions has the following beneficial effects:

The access network management network element in the embodiment of the present invention can obtain the address of the second management entity according to the pre-stored correspondence between the temporary identifier assigned by the first management entity on the second mobility management network element and the address of the second management entity Address; wherein, the first management entity is the management entity registered before the UE handover, and the second management entity is the management entity of the system after the UE handover, which can ensure that the management entity accessed after the handover is the same as the management entity accessed before the handover On one mobility management network element, the signaling interaction between different system management entities is reduced.

Another technical solution in the above technical solutions has the following beneficial effects:

The UE in the embodiment of the present invention can obtain the second management information used to address the second mobility management network element on the second mobility management network element according to the temporary identifier allocated by the first management entity on the second mobility management network element registered before the UE handover. The temporary identifier of the entity is sent to the management network element of the access network, wherein the second management entity is the management entity of the system after UE handover, which can ensure that the management entity accessed after the handover and the management entity accessed before the handover are in the same On the mobility management network element, the signaling interaction between different system management entities is reduced.

Another technical solution in the above technical solutions has the following beneficial effects:

The UE in the embodiment of the present invention can obtain the temporary identities assigned by at least two management entities on the mobility management network element, and select the system to be handed in from the obtained temporary identities assigned by the management entities on the same mobility management network element The temporary identifier assigned by the management entity of the network is sent to the access network management network element, which can ensure that the management entity accessed after the handover is on the same mobility management network element as the management entity accessed before the handover, reducing the need for management of different systems Signaling interaction between entities.

Description of drawings

FIG. 1 is a flowchart of an addressing method provided by Embodiment 1 of the present invention;

FIG. 2 is a flow chart of an addressing method provided by Embodiment 2 of the present invention;

FIG. 3 is a flowchart of an addressing method provided by Embodiment 3 of the present invention;

FIG. 4 is a flowchart of an addressing method provided by Embodiment 4 of the present invention;

FIG. 5 is a flowchart of an addressing method provided by Embodiment 5 of the present invention;

FIG. 6 is a flowchart of an addressing method provided by Embodiment 6 of the present invention;

FIG. 7 is a flowchart of an addressing method provided by Embodiment 7 of the present invention;

FIG. 8 is a flowchart of an addressing method provided in Embodiment 8 of the present invention;

FIG. 9 is a flowchart of an addressing method provided by Embodiment 9 of the present invention;

FIG. 10 is a flowchart of an addressing method provided by Embodiment 10 of the present invention;

FIG. 11 is a structural diagram of a mobility management network element provided by Embodiment 12 of the present invention;

FIG. 12 is a structural diagram of an access network management network element provided by Embodiment 13 of the present invention;

FIG. 13 is a structural diagram of user equipment provided by Embodiment 14 of the present invention;

FIG. 14 is a structural diagram of user equipment provided by Embodiment 15 of the present invention.

Detailed ways

An embodiment of the present invention provides an addressing method, including: when the user equipment UE is handed over between different systems, the first mobility management network element receives the access request message carrying the temporary identifier sent by the access network management network element; The temporary identifier determines the address of the management entity registered before the UE handover, and obtains the second mobility management network element where the management entity registered before the UE handover is located; obtains the address of the second mobility management network element A shared ID, where the shared ID indicates that the second mobility management network element is an integrated device; sending the shared ID to the access network management network element, where the shared ID is used for the access network management The network element addresses the second mobility management network element. Wherein, the access request message may be a location update request or an attach request, and the inter-system handover of the UE may be the handover of the UE from the 2G/3G network to the LTE network, or the handover of the UE from the LTE network to the 2G/3G network. By using the technical solutions provided by the embodiments of the present invention, it can be ensured that both the management entity accessed after the handover and the management entity accessed before the handover are on the second mobility management network element.

Referring to Fig. 1, Embodiment 1 of the present invention provides an addressing method for a user to switch between networks. The user has accessed the second mobility management network element before the switch. network, then access the SGSN on the second mobility management network element, and if the user accesses the LTE network before handover, then access the MME on the second mobility management network element, and be confirmed by the first mobility management network element The second mobility management network element is an integrated device that can be accessed by the access network management network element, and the method specifically includes:

Step 101, the access network management network element forwards the location update request from the UE to the first mobility management network element, and the message includes a shared ID list Share ID list and a temporary identifier, wherein the Share ID list indicates that the access network management network element A list of shared mobility management network elements that the network element can associate with.

Assuming that the UE has been connected to the LTE network and attached to the MME of the second mobility management network element, the MME allocates a GUTI to the UE, and the GUTI is composed of GUMMEI and M-TMSI. When the UE switches from the LTE network to the 2G/3G network, the UE regards GUMMEI as Old RAI, regards M-TMSI as P-TMSI, and sends a RAU request message carrying P-TMSI to the access network management network element RNC , because the M-TMSI is allocated by the MME, and the corresponding NRI indicator bit is false information, the RNC cannot address the SGSN according to the M-TMSI, but selects the first mobility management network element SGSN to access according to the network side conditions.

Similarly, assuming that the UE has been connected to the 2G/3G network and then switched to the LTE network, the access network management network element eNodeB selects the first mobility management network element MME to access according to the situation of the network side.

Step 102: The first mobility management network element determines that the UE accesses the second mobility management network element before handover according to the temporary identifier in the location update request, and sends a Context request message to the second mobility management network element.

Specifically, the first mobility management network element SGSN resolves to the previously attached MME address according to the P-TMSI carried in the RAU request message, or the first mobility management network element MME resolves to the address of the previously attached MME according to the GUTI carried in the TAU request message The address of the previously attached SGSN is resolved to determine that the UE has accessed the second mobility management network element before the handover, and a Context request message is sent to the second mobility management network element.

In this step, if the first mobility management network element determines that the mobility management network element accessed by the UE before the handover is itself, the subsequent steps do not need to be performed.

Step 103, the second mobility management network element determines that it is a combined device, and sends a context response message to the first mobility management network element, and the message carries a Share ID identifying itself as a combined device.

Step 104. According to the Share ID in the Context response message, the first mobility management network element determines that the second mobility management network element is an integrated device, and then judges whether the Share ID exists in the Share ID list. If yes, it indicates the first The second mobility management network element is an integrated device that can be accessed by the access network management network element, and step 105 is executed.

Step 105, the first mobility management network element sends a re-route request to the access network management network element, and the re-route request carries the Share ID.

Step 106: The access network management network element resends a location update request to the second mobility management network element according to the Share ID.

The first mobility management network element in Embodiment 1 of the present invention can determine the address of the management entity registered before the UE handover according to the temporary identifier in the location update request, and then confirm the mobility management entity where the management entity registered before the UE handover is located. The network element obtains the shared ID of the second mobility management network element when the management entity registered before the UE handover is in the second mobility management network element; sends the shared ID to the access network management network element, so that the access The network management network element addresses the second mobility management network element according to the shared ID. Adopting the technical solution provided by this embodiment can ensure that the management entity accessed after the handover and the management entity accessed before the handover are on the same mobility management network element, and the signaling interaction between management entities of different systems is reduced.

Referring to Fig. 2, Embodiment 2 of the present invention provides an addressing method for a user to switch between networks. The permanent management network element is an integrated device that can be accessed by the access network management network element, and the method specifically includes:

Step 201, the access network management network element forwards the location update request from the UE to the first mobility management network element, and the location update request carries a temporary identifier.

Step 202-step 203 are the same as step 102-step 103.

Step 204, the first mobility management network element forwards a re-route request message to the access network management network element, and the message carries a Shared ID identifying that the second mobility management network element is an integrated device.

Step 205, the access network management network element determines that the second mobility management network element is an integrated device according to the Share ID in the re-route request message, and then judges whether the Share ID exists in the Share ID list, and if so, execute the step 206.

Step 206, the access network management network element sends a location update request to the second mobility management network element according to the Share ID.

The first mobility management network element in Embodiment 2 of the present invention can determine the address of the management entity registered before the UE handover according to the temporary identifier in the location update request, and then confirm the mobility management entity where the management entity registered before the UE handover is located. The network element obtains the shared ID of the second mobility management network element when the management entity registered before the UE handover is in the second mobility management network element; sends the shared ID to the access network management network element, so that the access The network management network element addresses the second mobility management network element according to the shared ID. Adopting the technical solution provided by this embodiment can ensure that the management entity accessed after the handover and the management entity accessed before the handover are on the same mobility management network element, and the signaling interaction between management entities of different systems is reduced.

Referring to FIG. 3 , Embodiment 3 of the present invention provides an addressing method, wherein it is used for switching between networks for a user, and the user has accessed the second mobility management network element before the switching, and is confirmed by the second mobility management network element Whether it is an integrated device that can be accessed by an access network management network element, the method specifically includes:

Step 301 is the same as step 101.

Step 302, the first mobility management network element determines that the UE accesses the second mobility management network element before handover according to the temporary identifier in the location update request, and sends a context request Context carrying a ShareID list to the second mobility management network element request message.

In this step, the first mobility management network element determines that the UE accesses the second mobility management network element before the handover according to the temporary identifier in the location update request is the same as step 102 .

Step 303, the second mobility management network element determines that it is a unified device, and judges whether the Share ID identifying itself as a unified device exists in the Share ID list, and if so, executes step 304.

Step 304, the second mobility management network element carries the Share ID and information indicating rerouting in the Contextresponse message sent to the first mobility management network element.

Step 305, the first mobility management network element sends a re-route request to the access network management network element, and the message carries the Share ID.

Step 306, the access network management network element sends a location update request to the second mobility management network element according to the Share ID.

The first mobility management network element in Embodiment 3 of the present invention can determine the address of the management entity registered before the UE handover according to the temporary identifier in the location update request, and then confirm the mobility management where the management entity registered before the UE handover is located. The network element obtains the shared ID of the second mobility management network element when the management entity registered before the UE handover is in the second mobility management network element; sends the shared ID to the access network management network element, so that the access The network management network element addresses the second mobility management network element according to the shared ID. Adopting the technical solution provided by this embodiment can ensure that the management entity accessed after the handover and the management entity accessed before the handover are on the same mobility management network element, and the signaling interaction between management entities of different systems is reduced.

Referring to Fig. 4, Embodiment 4 of the present invention provides an addressing method for a user to switch between networks. The user has accessed the second mobility management network element before switching, and the first mobility management network element confirms the The mobility management network element is an integrated device that can be accessed by the access network management network element, and the method includes:

Step 401, the access network management network element sends an AttachRequest message to the first mobility management network element, and the message includes a Share ID list and a temporary identifier.

Assuming that the UE has been connected to the LTE network and attached to the MME of the second mobility management network element, the MME allocates a GUTI to the UE, and the GUTI is composed of GUMMEI and M-TMSI. When UE switches from LTE network to 2G/3G network, UE regards GUMMEI as Old RAI and M-TMSI as P-TMSI, and sends an Attach Request message carrying P-TMSI to the access network management network element RNC , because the M-TMSI is allocated by the MME, and the corresponding NRI indicator bit is false information, the RNC cannot address the SGSN according to the M-TMSI, but selects the first mobility management network element SGSN to access according to the network side conditions.

Similarly, assuming that the UE first accesses the 2G/3G network and then switches to the LTE network, the access network management network element eNodeB selects the first mobility management network element MME to access according to the network side conditions.

Step 402, the first mobility management network element determines that the UE is connected to the second mobility management network element before handover according to the temporary identifier carried in the Attach request message, and sends an Identification Request message to the second mobility management network element .

Specifically, the manner in which the first mobility management network element determines that the UE accesses the second mobility management network element before handover according to the temporary identifier carried in the Attach request message is similar to that in step 102, and will not be repeated here.

In this step, if the first mobility management network element determines that the mobility management network element accessed by the UE before the handover is itself, the subsequent steps do not need to be performed.

Step 403, the second mobility management network element determines that it is a unified device, and sends an Identification response message to the access network management network element, and the message carries a Share ID identifying itself as a unified device.

Step 404, the first mobility management network element determines that the second mobility management network element is a unified device according to the ShareID in the Identification response message, and then judges whether the Share ID exists in the Share IDlist, and if so, it indicates that the second mobile The permanent management network element is an integrated device that can be accessed by the access network management network element, and step 405 is performed.

Step 405, the first mobility management network element sends a re-routing request re-attach request to the access network management network element, and the re-attach request carries the Share ID.

Step 406, the access network management network element resends the Attach request to the second mobility management network element according to the Share ID.

The first mobility management network element in Embodiment 4 of the present invention can determine the address of the management entity registered before the UE handover according to the temporary identifier in the attach request, and then confirm the mobility management network where the management entity registered before the UE handover is located element, when the management entity registered by the UE before handover is in the second mobility management network element, obtain the shared ID of the second mobility management network element; send the shared ID to the access network management network element, so that the access network The management network element addresses the second mobility management network element according to the shared ID. Adopting the technical solution provided by this embodiment can ensure that the management entity accessed after the handover and the management entity accessed before the handover are on the same mobility management network element, and the signaling interaction between management entities of different systems is reduced.

Referring to Fig. 5, Embodiment 5 of the present invention provides an addressing method for a user to switch between networks. The permanent management network element is an integrated device that can be accessed by the access network management network element, and the method includes:

Step 501, the access network management network element sends an AttachRequest message to the first mobility management network element, and the message carries a temporary identifier.

Step 502-step 503 are the same as step 402-step 403.

Step 504, the first mobility management network element sends a re-attach request message to the eNodeB, and the message carries a Shared ID identifying that the second mobility management network element is an integrated device.

Step 505, according to the Share ID in the re-attach request message, the access network management network element determines that the second mobility management network element is an integrated device, and then judges whether the Share ID exists in the Share ID list, and if so, execute the step 506.

Step 506, the access network management network element resends the Attachrequest to the second mobility management network element.

The first mobility management network element in Embodiment 5 of the present invention can determine the address of the management entity registered before the UE handover according to the temporary identifier in the attach request, and then confirm the mobility management network where the management entity registered before the UE handover is located element, when the management entity registered by the UE before handover is in the second mobility management network element, obtain the shared ID of the second mobility management network element; send the shared ID to the access network management network element, so that the access network The management network element addresses the second mobility management network element according to the shared ID. Adopting the technical solution provided by this embodiment can ensure that the management entity accessed after the handover and the management entity accessed before the handover are on the same mobility management network element, and the signaling interaction between management entities of different systems is reduced.

Referring to FIG. 6 , Embodiment 6 of the present invention provides an addressing method, wherein, when a user switches between networks, the user has accessed a second mobility management network element before switching, and is confirmed by the second mobility management network element Whether it is an integrated device that can be accessed by an access network management network element, the method includes:

Step 601, the access network management network element sends an Attach Request message to the first mobility management network element, and the message includes a Share ID list and a temporary identifier.

Step 602, the first mobility management network element determines that the UE is connected to the second mobility management network element before handover according to the temporary identifier carried in the Attach request message, and sends a message carrying the Shared ID List to the second mobility management network element Identification Request message.

Step 603, the second mobility management network element determines that it is a unified device, and judges whether the Share ID identifying itself as a unified device exists in the Share ID list, and if so, executes step 604.

Step 604, the second mobility management network element carries the Share ID and information indicating rerouting in the Identification response message sent to the first mobility management network element.

Step 605, the first mobility management network element sends a re-attach request to the access network management network element, and the message carries the Share ID.

Step 606: The access network management network element resends the Attach request to the second mobility management network element according to the Share ID.

The first mobility management network element in Embodiment 6 of the present invention can determine the address of the management entity registered before the UE handover according to the temporary identifier in the attach request, and then confirm the mobility management network where the management entity registered before the UE handover is located element, when the management entity registered by the UE before handover is in the second mobility management network element, obtain the shared ID of the second mobility management network element; send the shared ID to the access network management network element, so that the access network The management network element addresses the second mobility management network element according to the shared ID. Adopting the technical solution provided by this embodiment can ensure that the management entity accessed after the handover and the management entity accessed before the handover are on the same mobility management network element, and the signaling interaction between management entities of different systems is reduced.

Referring to Fig. 7, Embodiment 7 of the present invention provides an addressing method, in which the second mobility management network element allocates two sets of temporary identifiers P-TMSI and GUTI, and the method includes:

Step 701, the UE sends an Attach Request to the second mobility management network element, and in the message, the UE sends its own access network capabilities (referring to which networks the UE supports, for example, the UE can access the LTE network and the 2G/3G network) to the network side.

Step 702: After the mobility management network element of the second network discovers that the UE has multiple access capabilities, the Attach Accept message includes not only the temporary identifier assigned by the management entity to which the current user is attached, but also the mobility management network element of the second network. The temporary identity assigned by another management entity on the Yuan, that is, the Attach Accept includes GUTI, TAI list assigned by MME, P-TMSI, RAI, and P-TMSI Signature assigned by SGSN.

The P-TMSI allocated by SGSN can be of the following two types:

1) Identify the P-TMSI of the UE, that is, the P-TMSI assigned by the SGSN to the UE, to ensure that different UEs are assigned different P-TMSIs.

2) The P-TMSI that identifies itself, that is, the temporary identity allocated for the SGSN itself, is a public identity that uniquely identifies the SGSN.

Step 703, if the location of the UE changes (or periodically updates), the UE sends a Radio Resource Control (Radio Network Resource Control, RRC) message to the access network management network element, and the message carries a location update request and a temporary identifier.

If the UE wants to access the LTE network, the access network management element is eNodeB, and the temporary identifier is GUTI; if the UE wants to access the 2G/3G network, the access network management element is SGSN, and the temporary identifier includes P-TMSI.

Step 704: The access network management network element addresses the corresponding management entity through the temporary identifier provided by the UE, that is, addresses the MME according to the GUTI, or addresses the SGSN according to the P-TMSI, and sends the UE's information to the addressed management entity. Location update request.

Step 705: The second mobility management network element sends a location update acceptance message to the access network management network element. If the UE generally only saves a set of temporary identities, the location update acceptance message needs to notify the UE that it has accessed On an all-in-one device, the UE will continue to retain two sets of temporary identities after receiving such a notification message. If the UE supports the function of saving dual temporary identities, then there is no need to notify the UE that it has connected to an integrated device, and the UE will automatically save two sets of identities.

In Embodiment 7 of the present invention, the UE can acquire the temporary identifiers assigned by at least two management entities on the mobility management network element, and select the temporary identifier assigned by the management entity to be switched into the system to send to the access network management network element, which can ensure handover The management entity accessed later is on the same mobility management network element as the management entity accessed before the handover, which reduces the signaling interaction between management entities of different systems.

Embodiments 8, 9, 10, and 11 of the present invention provide an addressing method. The UE obtains the temporary identifier assigned by the first management entity on the second mobility management network element; the first management entity is the system before the UE handover A management entity; according to the temporary identifier allocated by the first management entity, acquire a temporary identifier for addressing a second management entity on the second mobility management network element, where the second management entity is the system after UE handover A management entity; sending a location update request to an access network management network element, where the location update request includes the temporary identifier used to address the second management entity. Wherein, the first management entity may be an MME, and the second management entity may be an SGSN; or, the first management entity may be an SGSN, and the second management entity may be an MME. By using the technical solutions provided by the embodiments of the present invention, it can be ensured that both the management entity accessed after the handover and the management entity accessed before the handover are on the second mobility management network element.

Referring to FIG. 8, Embodiment 8 of the present invention provides an addressing method, which includes:

Step 801, the UE first attaches to the MME of the second mobility management network element, the MME makes the following changes to the GUTI, and sends an Attach Accept to the UE, and the Attach Accept carries the GUTI.

Specifically, MME makes the following changes to GUTI:

EPS<MCC> matches 2G/3G<MCC>;

EPS<MNC> matches 2G/3G<MNC>;

EPS<MME Group ID> matches 2G/3G<LAC>;

EPS<MME Code> matches 2G/3G<RAC>;

EPS<M-TMSI> matches 2G/3G<P-TMSI>.

Specifically, the MME configures the M-TMSI according to the format of the P-TMSI, so that the M-TMSI is also configured with NRI information, and the NRI uniquely identifies the SGSN on the second mobility management network element.

In step 802, the UE accesses the 2G/3G network, and maps the M-TMSI to a P-TMSI, and the P-TMSI carries an NRI.

Step 803, the UE sends a location update request to the access network management network element RNC, the location update request is a RAU Request, and the RAU Request carries the P-TMSI.

Step 804, the RNC addresses the SGSN on the second mobility management network element according to the P-TMSI, and sends the RAU Request to the SGSN.

In the eighth embodiment of the present invention, in the temporary identity assigned by the MME on the second mobility management network element, the M-TMSI contains the NRI that identifies the SGSN, and the UE maps the M-TMSI to a P-TMSI, and the P-TMSI carries The NRI enables the access network management network element RNC to address the SGSN on the second mobility management network element according to the NRI, and can ensure that the management entity accessed after the handover and the management entity accessed before the handover are both in On the second mobility management network element.

Referring to FIG. 9, Embodiment 9 of the present invention provides an addressing method, which includes:

Step 901, UE first attaches to the SGSN of the second mobility management network element, receives the Attach Accept sent by the SGSN, the Attach Accept carries the P-TMSI assigned by the SGSN, and indicates the second mobility management network element that the UE has accessed is an all-in-one device.

Step 902, the UE accesses the LTE network, and according to the indication that the second mobility management network element that the UE has accessed is an integrated device, confirm that the UE has accessed an integrated device, and the UE constructs a GUTI, where MMEID=NRI in the GUTI , since the value of the MME ID is greater than the NRI, the insufficient binary digits are filled with zeros. This method requires the core network side to ensure the uniqueness of the MME ID.

Step 903, the UE sends a location update request to the access network management network element eNodeB, the location update request is a TAU Request, and the TAU Request carries a GUTI.

Step 904, the eNodeB addresses the MME on the second mobility management entity according to the GUTI, and sends the TAURequest to the MME.

In Embodiment 9 of the present invention, the UE uses the NRI in the P-TMSI as the MME ID in the GUTI, and the core network side must ensure the uniqueness of the MME ID, so that the access network management network element eNodeB can address the second MME ID according to the MME ID. The MME on the mobility management network element can ensure that both the management entity accessed after the handover and the management entity accessed before the handover are on the second mobility management network element.

Referring to Fig. 10, Embodiment 10 of the present invention provides an addressing method, UE has been attached to the management entity of the second mobility management network element (such as MME2) and the management entity of the first mobility management network element (such as SGSN1) , receive and save the GUTI2 sent by the MME2 and the P-TMSI1 sent by the SGSN1. If the first mobility management network element is an integrated device, the UE needs to be notified to record that the first mobility management network element is an integrated device. Specifically, the following methods can be adopted:

1) The first mobility management network element adds a new information element to indicate that it is an integrated device, or indicates whether it is an integrated device through different values of the newly added information element.

2) The first mobility management network element may set a bit in the temporary identifier to reflect that it is an integrated device.

If the first mobility management network element adopts the above first method, then the UE device performs the following processing:

1) If the UE does not receive the indication information, it may be considered that the corresponding mobility management network element is not an integrated device.

2) If the UE receives indication information indicating that the corresponding mobility management network element is an integrated device, it may specifically add an information element associated with its temporary identifier, indicating that the mobility management network element is an integrated device.

Similarly, if the second mobility management network element is an integrated device, the UE needs to be notified to record that the second mobility management network element is an integrated device, and the specific implementation method is the same as above.

Step 1001, when the UE changes its location, it sends a location update request carrying a temporary identifier to the access network management network element.

If a RAU occurs in the UE, the UE checks the status of the GUTI to confirm whether the mobility management network element where the management entity corresponding to the GUTI is located is an integrated device. If so, the two temporary identifiers (temporary identifiers of the same access system P-TMSI) to notify the access network management network element that the temporary identity (P-TMSI) of the same access system can be placed in the front, and the special temporary identity of the different system can be placed in the back. The temporary identifier is to map the M-TMSI in the GUTI to P-TMSI by referring to steps 801 and 802, so that the access network management network element in the subsequent steps can first identify the temporary identifier of the system. The management entity corresponding to the temporary identifier then identifies the special temporary identifier of the different system, and accesses the management entity corresponding to the special temporary identifier.

If a TAU occurs in the UE, the UE checks the status of the P-TMSI, and confirms whether the mobility management network element where the management entity corresponding to the P-TMSI is located is an integrated device. If so, the two temporary identifiers (same connection The temporary identifier of the incoming system and the special temporary identifier of the different system) notify the management network element of the access network. The temporary identifier (GUTI) of the same access system is placed in the front, and the special temporary identifier of the different system is placed in the back. Here, the special temporary identifier of the different system The temporary identifier is the UE assembling GUTI by referring to steps 901 and 902, so that MME ID = NRI, so that the access network management network element in the subsequent steps first recognizes the temporary identifier of the system, if the temporary identifier of the system cannot be accessed The corresponding management entity then identifies the special temporary identifier of the different system, and accesses the management entity corresponding to the special temporary identifier.

Wherein, the above-mentioned temporary identifier of this system is a temporary identifier assigned by a management entity of the same system on the first mobility management network element, and the temporary identifier of a special different system is used to address the same system on the second mobility management network element Temporary ID of the managed entity.

Step 1002, the access network management network element analyzes the temporary identity of the system, and determines whether the third management entity on the first mobility management network element corresponding to the temporary identity of the system can be accessed, and if so, reports to the system The third management entity on the first mobility management network element corresponding to the temporary identifier sends a location update request, and proceeds to step 1003; if not, proceeds to step 1004.

Step 1003, the first mobility management network element sends a location update acceptance message to the access network management network element, and may notify the UE that the first mobility management network element where the management entity accessed is an integrated device.

Step 1004, the access network management network element analyzes the temporary identifier of the special different system, and sends a location update request to the second management entity on the second mobility management network element corresponding to the temporary identifier of the special different system.

Step 1005, the second mobility management network element sends a location update acceptance message to the access network management network element, and may notify the UE that the second mobility management network element where the management entity accessed is an integrated device.

For the above tenth embodiment, if the access network management network element first analyzes the temporary identifier of the system (the temporary identifier assigned by the third management entity on the first mobility management network element), it is determined that the first mobility management network element cannot access the The third management entity on the network element analyzes the temporary identifier of the special different system (used to address the temporary identifier of the management entity of the same system on the second mobility management network element, that is, used to address the second mobility management network After confirming that the second management entity on the second mobility management network element cannot be accessed, according to the principle of selecting the core network management network element configured by oneself, a mobility The management network element, which may be a third mobility management network element, sends a location update request to the third mobility management network element, and then the third mobility management network element sends a location update acceptance to the UE, the location The temporary identifier assigned by itself is carried in the update acceptance message. If the MME3 on the third mobility management network element is connected, MME3 will assign a temporary identifier GUTI3, and the UE receives GUTI3, which will overwrite the original saved GUTI1. If the connection is on the third mobility management network element SGSN3, the SGSN3 will assign a temporary identifier P-TMSI3, and the UE will overwrite the original stored P-TMSI1 after receiving the P-TMSI3. If RAU occurs in the UE, P-TMSI3 is used as the temporary identifier allocated by the management entity of the same system to the access network management network element, or the NRI in P-TMSI3 is used as the MME ID to construct GUTI3 as a temporary identifier of a special different system. The identifier is brought to the management network element of the access network; if the UE has a TAU, the temporary identifier assigned by GUTI3 as a management entity of the same system is brought to the management network element of the access network, or the M-TMSI in GUTI3 is mapped to P-TMSI , as a temporary identifier of a special heterogeneous system, which is brought to the management network element of the access network.

In Embodiment 10 of the present invention, the UE will bring two sets of temporary identities (temporary identities of its own system and temporary identities of special different systems) to the access network management network element, and the access network management network element first confirms whether it can access the system The same-system management entity (third management entity) on the first mobility management network element corresponding to the temporary identifier of the temporary identifier, if not, then access to the second mobility management network element corresponding to the temporary identifier of the special different system The management entity of the same system (second management entity), when the UE undergoes network handover, if the UE is handed over between the same systems, it first selects the management entity of the same system on the previously accessed mobility management network element.

Embodiment 11 of the present invention provides an addressing method (refer to FIG. 10 ). Before this method, the UE has been attached to the management entity (such as MME2) of the second mobility management network element and the first mobility management network element On the management entity (such as SGSN1), receive and save the GUTI2 sent by MME2 and the P-TMSI1 sent by SGSN1. If the first mobility management network element is an integrated device, the UE needs to be notified to record that the first mobility management network element is an integrated device. Specifically, the following methods can be adopted:

1) The first mobility management network element adds a new information element to indicate that it is an integrated device, or indicates whether it is an integrated device through different values of the newly added information element.

2) The first mobility management network element may set a bit in the temporary identifier to reflect that it is an integrated device.

If the first mobility management network element adopts the above first method, then the UE device performs the following processing:

1) If the UE does not receive the indication information, it may be considered that the corresponding mobility management network element is not an integrated device.

2) If the UE receives indication information indicating that the corresponding mobility management network element is an integrated device, it may specifically add an information element associated with its temporary identifier, indicating that the mobility management network element is an integrated device.

Similarly, if the second mobility management network element is an integrated device, the UE needs to be notified to record that the second mobility management network element is an integrated device, and the specific implementation method is the same as above.

Step 1101, when the UE changes its location, it sends a location update request carrying two sets of temporary identities (P-TMSI and GUTI) to the access network management network element.

If a TAU occurs in the UE, the UE checks the status of the P-TMSI, and confirms whether the mobility management network element where the management entity corresponding to the P-TMSI is located is a unified device. If so, the two temporary identifiers (P-TMSI and GUTI) to notify the access network management network element that the temporary identifier (GUTI) of the same access system can be placed in front, and the temporary identifier (P-TMSI) of a different system can be placed in the back, so that in step 1102, the access network management network The eNodeB first analyzes the temporary identifier of the local system, and if it cannot access the management entity corresponding to the temporary identifier of the local system, then resolves the temporary identifier of the other system, otherwise it does not resolve the temporary identifier of the different system.

If a RAU occurs in the UE, the UE checks the status of the GUTI to confirm whether the mobility management network element where the management entity corresponding to the GUTI is located is a unified device, and if so, notifies the two temporary identities (P-TMSI and GUTI) through the RRC message For the access network management network element, the temporary identifier (P-TMSI) of the same access system can be placed in front, and the temporary identifier (GUTI) of a different system can be placed in the back, so that in step 1002, the access network management network element RNC first resolves If the temporary ID of this system cannot access the management entity corresponding to the temporary ID of this system, then resolve the temporary ID of another system; otherwise, do not resolve the temporary ID of another system.

Step 1102, the access network management network element analyzes the temporary identity of the system, and determines whether it can access the third management entity on the first mobility management network element corresponding to the temporary identity of the system, and if so, reports to the system The third management entity on the first mobility management network element corresponding to the temporary identifier sends a location update request, and proceeds to step 1103; if not, proceeds to step 1104.

Step 1103 , the first mobility management network element sends a location update acceptance message to the access network management network element, and may notify the UE that the first mobility management network element where the management entity accessed is an integrated device.

Step 1104, the access network management network element resolves the temporary identifier of the different system (that is, the temporary identifier assigned by the first management entity on the second mobility management network element), and according to the pre-stored temporary identifier assigned by the first management entity Identify the correspondence relationship with the address of the second management entity on the second mobility management network element (on the second mobility management network element, and belong to the management entity of the same system as the access network management network element), and obtain the first An address of the second management entity: addressing the second mobility management network element according to the acquired address of the second management entity.

Embodiment 11 of the present invention needs to upgrade the access network management network element in advance, so that all the access network management network elements associated with the MME/SGSN integrated device are configured with integrated device information. Specifically, the RNC can identify the association with the GUTI The eNodeB can identify the address of the MME of the MME/SGSN combined device associated with the P-TMSI.

Step 1105 , the second mobility management network element sends a location update acceptance message to the access network management network element, and may notify the UE that the second mobility management network element where the management entity accessed is an integrated device.

For the eleventh embodiment above, if the access network management network element first analyzes the temporary identifier of the system (the temporary identifier assigned by the third management entity on the first mobility management network element), it is determined that the third management entity cannot be accessed , and then analyze the temporary identifier of the different system (the temporary identifier assigned by the first management entity on the second mobility management network element), according to the pre-stored temporary identifier assigned by the first management entity and the second mobility management network element The corresponding relationship between the addresses of the second management entity (on the second mobility management network element and belonging to the same system as the access network management network element) addresses, obtain the address of the second management entity, and confirm that it cannot access After the second management entity is connected to the second mobility management network element, a mobility management network element that can serve is selected according to the principle of selecting the core network management network element configured by itself. The mobility management network element can be the third mobile The mobility management network element sends a location update request to the third mobility management network element, and then the third mobility management network element sends a location update acceptance to the UE, and the location update acceptance message carries the temporary identity allocated by itself. If the MME3 on the third mobility management network element is connected, MME3 will assign a temporary identifier GUTI3, and the UE receives GUTI3, which will overwrite the original saved GUTI1. If the connection is on the third mobility management network element SGSN3, the SGSN3 will assign a temporary identifier P-TMSI3, and the UE will overwrite the original stored P-TMSI1 after receiving the P-TMSI3.

Of course, in the eleventh embodiment of the present invention, if the UE only brings the temporary identifier of the different system (such as the temporary identifier assigned by the first management entity on the second mobility management network element) to the access network management network element, then The access network management network element matches the address of the second management entity (a management entity located in the same system as the access network management network element) on the second mobility management network element according to the pre-stored temporary identifier assigned by the first management entity Corresponding relationship, obtain the address of the second management entity, and access the second management entity.

In the eleventh embodiment of the present invention, the UE will bring two sets of temporary identities (temporary identities of its own system and temporary identities of other systems) to the access network management network element, and the access network management network element first confirms whether it can access the system The third management entity on the first mobility management network element corresponding to the temporary identifier of the temporary identifier, if not, then according to the pre-stored temporary identifier assigned by the first management entity on the second mobility management network element (temporary identifier of different system ) and the address of the second management entity on the second mobility management network element (the management entity on the second mobility management network element and belonging to the same system as the access network management network element), and obtain the first The address of the second management entity is connected to the second management entity, so that when the UE undergoes network handover, if the UE switches between the same system, it first selects the management entity of the same system on the previously accessed mobility management network element.

Those of ordinary skill in the art can understand that all or part of the steps in the methods of the above embodiments can be implemented through a program to instruct related hardware, and the program can be stored in a computer-readable storage medium, such as a read-only memory, Disk or CD, etc.

Referring to FIG. 11 , Embodiment 12 of the present invention provides a mobility management network element, including:

A temporary identifier receiving unit 1101, configured to receive an access request message carrying a temporary identifier sent by an access network management network element;

The mobility management network element determination unit 1102 is configured to determine the address of the management entity registered by the UE before the handover according to the temporary identifier, and learn that the network element where the management entity registered by the UE before the handover is located is the second mobility Manage network elements;

a shared ID obtaining unit 1103, configured to obtain the shared ID of the second mobility management network element;

The sending unit 1104 is configured to send the shared ID to the access network management network element.

The mobility management network element also includes:

A list obtaining unit 1105, configured to obtain a list of shared IDs that can be associated with access network management network elements;

a judging unit 1106, configured to judge whether the shared ID acquired by the shared ID acquiring unit 1105 is a shared ID in the list;

The sending unit 1104 is configured to send the shared ID acquired by the shared ID acquiring unit to the access network management network element when the judging result of the judging unit 1106 is yes.

The mobility management network element provided by Embodiment 12 of the present invention can determine the address of the management entity registered before the UE handover according to the temporary identifier, and then confirm the second mobility management network element where the management entity registered before the UE handover is located, Obtain the shared ID of the second mobility management network element and send it to the access network management network element, so that the access network management network element can address the second mobility management network element according to the shared ID, which can ensure that the UE accessed after handover The management entity and the accessed management entity before the handover are on the same mobility management network element.

Referring to Fig. 12, Embodiment 13 of the present invention provides an access network management network element, including:

The receiving unit 1201 is configured to receive a location update request sent by the UE, where the location update request carries a temporary identifier allocated by the first management entity registered before the UE handover;

The address obtaining unit 1202 is configured to obtain the address of the second management entity according to the pre-stored correspondence between the temporary identifier assigned by the first management entity and the address of the second management entity; the second management entity is UE handover The management entity of the subsequent system; the first management entity and the second management entity are both located on the second mobility management network element;

The addressing unit 1203 is configured to address the second mobility management network element according to the acquired address of the second management entity.

Wherein, the location update request further includes: a temporary identifier allocated by a third management entity that the UE has accessed and belongs to the same system as the access network management network element, and the third management entity is located in the first On the mobility management network element; the access network management network element also includes:

A judging unit 1204, configured to determine whether the third management entity can be accessed according to the temporary identifier assigned by the third management entity;

The address acquiring unit 1205 is configured to acquire the second management entity according to the pre-stored correspondence between the temporary identifier allocated by the first management entity and the address of the second management entity when the determination result of the determination unit 1204 is no. 2. The address of the managed entity.

The location update request received by the access network management network element provided by Embodiment 13 of the present invention carries the temporary identifier assigned by the first management entity on the second mobility management network element registered before the UE handover, and the access network The management network element can determine the address of the second management entity according to the pre-stored correspondence between the temporary identifier assigned by the first management entity and the address of the second management entity on the second mobility management network element, and the second management entity The entity is the management entity of the system after the UE is handed over, and it can ensure that the management entity accessed by the UE after the handover is on the same mobility management network element as the management entity accessed by the UE before the handover.

Referring to FIG. 13 , Embodiment 14 of the present invention provides a user equipment, including:

The first obtaining unit 1301 is configured to obtain the temporary identifier assigned by the first management entity registered before the user equipment handover;

The second acquiring unit 1302 is configured to acquire a temporary identifier for addressing a second management entity according to the temporary identifier assigned by the first management entity, and the second management entity is a management entity of the system after UE handover; the The first management entity and the second management entity are both on the second mobility management network element;

The message sending unit 1303 is configured to send a location update request to an access network management network element, where the location update request includes the temporary identifier used to address the second management entity.

Wherein, the first management entity is an MME, the second management entity is an SGSN, and the M-TMSI in the temporary identity allocated by the MME has an NRI identifying the SGSN; the second acquiring unit 1302 is configured to Mapping the M-TMSI into a P-TMSI for addressing the SGSN, where the P-TMSI carries the NRI.

Wherein, the first management entity is an SGSN, the second management entity is an MME, and the second acquiring unit 1302 is configured to use the value of NRI in the temporary identifier assigned by the SGSN as the MMEID, and construct the The temporary identification of the MME ID used to address the MME.

The user equipment provided by the fourteenth embodiment of the present invention can obtain the address for the second mobility management network element on the second mobility management network element according to the temporary identifier assigned by the first management entity on the second mobility management network element registered before the handover. The temporary identifier of the management entity. The second management entity is the management entity of the system after the UE is handed over, and can ensure that the management entity accessed by the UE after the handover is on the same mobility management network element as the management entity accessed by the UE before the handover.

Referring to FIG. 14, Embodiment 15 of the present invention provides a user equipment, including:

The receiving unit 1401 is configured to receive temporary identities allocated by at least two management entities on the mobility management network element;

A selection unit 1402, configured to select, among the received temporary identities, the temporary identities assigned by the management entities to be switched into the system;

The sending unit 1403 is configured to send a location update request to the access network management network element, where the location update request carries the selected temporary identifier; the temporary identifier is used by the access network management network element to address the mobile sex management network element. the

The user equipment provided by Embodiment 15 of the present invention receives the temporary identities allocated by at least two management entities on the mobility management network element, selects the temporary identities allocated by the management entities to be switched into the system from the received temporary identities, and sends the For the access network management network element, it can ensure that the management entity accessed by the UE after handover and the management entity accessed before the handover are on the same mobility management network element.

The addressing method, network element equipment, and network system provided by the embodiment of the present invention have been introduced in detail above. For those of ordinary skill in the art, based on the idea of the embodiment of the present invention, there will be some specific implementation methods and application ranges. Changes, in summary, the contents of this specification should not be construed as limiting the present invention.

Claims (24)

1. an addressing method is characterized in that, comprising: when user equipment (UE) switches between different system,

First mobile management network element receives the access request message that carries temporary mark that the access network managed network element sends;

Determine the address of the management entity registered before described UE switches according to described temporary mark, know second mobile management network element at the management entity place of being registered before the described UE switching;

Obtain the share I D of described second mobile management network element, described share I D shows that described second mobile management network element is an in-one device;

Described share I D is sent to described access network managed network element, and described share I D is used for described second mobile management network element of described access network managed network element addressing.

2. method according to claim 1 is characterized in that, this method also comprises:

First mobile management network element obtains the tabulation of the related share I D of described access network managed network element energy, whether the share I D that judges second mobile management network element obtained is the share I D in the described tabulation, if continue to carry out the step that described share I D is sent to described access network managed network element.

3. method according to claim 1 is characterized in that, this method also comprises:

First mobile management network element obtains the tabulation of the related share I D of described access network managed network element energy and sends to described second mobile management network element, described second mobile management network element judges that whether the share I D of oneself is the share I D in the described tabulation, if continue the step that the share I D of second mobile management network element is obtained in execution.

4. method according to claim 1 is characterized in that, described share I D is sent to after the described access network managed network element, and this method also comprises:

The share I D that described access network managed network element is judged second mobile management network element whether described access network managed network element can be related the tabulation of share I D in, if, according to described second mobile management network element of the share I D addressing of described second mobile management network element.

5. an addressing method is characterized in that, comprising: when user equipment (UE) switches between different system,

The access network managed network element receives the position updating request that UE sends, and carries the temporary mark that first management entity is distributed in the described position updating request, and described first management entity is the management entity of being registered before described UE switches; The temporary mark that is distributed according to described first management entity that prestores and the corresponding relation of the second management entity address, the address that obtains described second management entity, described second management entity and first management entity are in together on second mobile management network element;

According to the address of second management entity that is obtained, described second mobile management network element of addressing.

6. method according to claim 5, it is characterized in that, also comprise in the described position updating request: what described UE once inserted belongs to the temporary mark that the 3rd management entity of homologous ray is distributed with described access network managed network element, and described the 3rd management entity is positioned on first mobile management network element;

This method also comprises: the access network managed network element determines whether to insert described the 3rd management entity according to the temporary mark that described the 3rd management entity is distributed, if described access network managed network element inserts described the 3rd management entity; If not, continue to carry out the step of the address that obtains described second management entity.

7. according to claim 5 or 6 described methods, it is characterized in that, carry the indication information of representing that described second mobile management network element is an in-one device in the temporary mark that described first management entity is distributed;

This method also comprises: described UE is according to described indication information, confirm that described second mobile management network element is in-one device after, send the position updating request of carrying described temporary mark to described access network managed network element.

8. according to claim 5 or 6 described methods, it is characterized in that this method also comprises:

Described first management entity sends the indication information of representing that described second mobile management network element is an in-one device to UE; Described UE is according to described indication information, confirm that described second mobile management network element is in-one device after, send the position updating request of carrying described temporary mark to described access network managed network element.

9. an addressing method is characterized in that, comprising: when user equipment (UE) switches between different system,

UE obtains the temporary mark that first management entity distributes, and described first management entity is the management entity of being registered before UE switches;

Temporary mark according to described first management entity distributes obtains the temporary mark that is used for addressing second management entity, and described second management entity is the management entity that UE switches the back system; Described second management entity and first management entity are in together on second mobile management network element;

Send position updating request to the access network managed network element, comprise the described temporary mark that is used for described second management entity of addressing in the described position updating request.

10. method according to claim 9, it is characterized in that, described first management entity is Mobility Management Entity MME, second management entity is Serving GPRS Support Node SGSN, among the MME Temporary Mobile Subscriber Identity M-TMSI in the temporary mark that described MME distributes, have the Internet resources indication NRI that identifies described SGSN;

The described temporary mark that is used for addressing second management entity that obtains is specially:

UE is mapped to the P-TMSI that is used for the described SGSN of addressing with described M-TMSI, carries described NRI among the described P-TMSI.

11. method according to claim 9 is characterized in that, described first management entity is SGSN, and described second management entity is MME,

The described temporary mark that is used for addressing second management entity that obtains is specially:

UE as MME ID, is configured to second temporary mark of the described MME of addressing with the value of the NRI in the temporary mark that described SGSN distributed, and described second temporary mark comprises described MME ID.

12. according to each described method of claim 9 to 11, it is characterized in that, also comprise in the described position updating request: what described UE once inserted belongs to the temporary mark that the 3rd management entity of homologous ray is distributed with described access network managed network element, and described the 3rd management entity is positioned on first mobile management network element;

This method also comprises: the access network managed network element determines whether to insert described the 3rd management entity according to the temporary mark that described the 3rd management entity is distributed, if described access network managed network element inserts described the 3rd management entity; If not, described access network managed network element inserts described second management entity according to the described temporary mark that is used for described second management entity of addressing.

13. method according to claim 9 is characterized in that, carries the indication information of representing that described second mobile management network element is an in-one device in the temporary mark that described first management entity distributes;

Before obtaining the temporary mark that is used for addressing second management entity, this method also comprises: described UE confirms that according to described indication information described second mobile management network element is an in-one device.

14. method according to claim 9 is characterized in that, before obtaining the temporary mark that is used for addressing second management entity, this method also comprises:

Described first management entity sends the indication information of representing that described second mobile management network element is an in-one device to UE;

Described UE confirms that according to described indication information described second mobile management network element is an in-one device.

15. an addressing method is characterized in that, comprising: when user equipment (UE) switches between different system,

Message Attach Accept is accepted in adhering to that UE receiving mobility managed network element sends, in Attach Accept, not only comprise the temporary mark that management entity distributed that current UE is adhered to, also comprise the temporary mark that another management entity distributed on the described mobile management network element, the management entity that described current UE is adhered to is on described mobile management network element;

Select to wait the temporary mark that management entity distributed of the system that cuts in the temporary mark that management entity distributed on described mobile management network element, send position updating request to the access network managed network element, carry selected temporary mark in the described position updating request; Described temporary mark is used for the described mobile management network element of described access network managed network element addressing.

16. method according to claim 15, it is characterized in that when the management entity when being SGSN of temporary mark distribution, the temporary mark that described SGSN distributes is the Packet Temporary Mobile Subscriber Identity sign P-TMSI that is used to discern UE, perhaps, be used to discern the P-TMSI of described SGSN.

17. a mobile management network element is characterized in that, comprising:

The temporary mark receiving element is used to receive the access request message that carries temporary mark that the access network managed network element sends;

The mobile management network element determining unit is used for determining according to described temporary mark the address of the management entity registered before described UE switches, knows second mobile management network element at the management entity place of being registered before the described UE switching;

Share I D acquiring unit is used to obtain the share I D of described second mobile management network element; Described share I D shows that described second mobile management network element is an in-one device;

Transmitting element is used for described share I D is sent to described access network managed network element.

18. mobile management network element according to claim 17 is characterized in that, also comprises:

The tabulation acquiring unit, the tabulation that is used to obtain the related share I D of access network managed network element energy;

Judging unit is used for judging whether the described share I D that described share I D acquiring unit is obtained is the share I D of described tabulation;

Described transmitting element is used in the judged result of described judging unit when being, the share I D that described share I D acquiring unit is obtained sends to described access network managed network element.

19. an access network managed network element is characterized in that, comprising:

Receiving element is used to receive the position updating request that UE sends, and carries the temporary mark that first management entity is distributed in the described position updating request, and described first management entity is the management entity of system before UE switches;

Address acquisition unit, be used for the temporary mark that distributed according to described first management entity that prestores and the corresponding relation of the second management entity address, obtain the address of described second management entity, described second management entity and first management entity are in together on second mobile management network element;

Selected cell is used for the address according to second management entity that is obtained, described second mobile management network element of addressing.

20. access network managed network element according to claim 19 is characterized in that,

Also comprise in the described position updating request: what described UE once inserted belongs to the temporary mark that the 3rd management entity of homologous ray is distributed with described access network managed network element, and described the 3rd management entity is positioned on first mobile management network element;

Described access network managed network element also comprises:

Judging unit is used for the temporary mark that distributed according to described the 3rd management entity, determines whether to insert described the 3rd management entity;

Described address acquisition unit is used in the judged result of described judging unit for not the time, the temporary mark that is distributed according to described first management entity that prestores and the corresponding relation of the second management entity address, the address that obtains described second management entity; Described second management entity is the management entity that UE switches the back system.

21. a subscriber equipment is characterized in that, comprising:

First acquiring unit is used to obtain the temporary mark that first management entity distributes; Described first management entity is the management entity of system before UE switches;

Second acquisition unit is used for the temporary mark according to described first management entity distribution, obtains the temporary mark that is used for addressing second management entity, and described second management entity is the management entity that UE switches the back system; Described second management entity and first management entity are in together on second mobile management network element;

Message sending unit is used for sending position updating request to the access network managed network element, comprises the described temporary mark that is used for described second management entity of addressing in the described position updating request.

22. subscriber equipment according to claim 21 is characterized in that, described first management entity is MME, and second management entity is SGSN, has the NRI that identifies described SGSN among the M-TMSI in the temporary mark that described MME distributes;

Described second acquisition unit is used for described M-TMSI is mapped to the P-TMSI that is used for the described SGSN of addressing, carries described NRI among the described P-TMSI.

23. subscriber equipment according to claim 21 is characterized in that, described first management entity is SGSN, and described second management entity is MME,

Described second acquisition unit, the value that is used for temporary mark NRI that described SGSN is distributed are as MME ID, and structure comprises the temporary mark that is used for the described MME of addressing of described MME ID.

24. a subscriber equipment is characterized in that, comprising:

Receiving element, be used for adhering to of receiving mobility managed network element transmission accepting message Attach Accept, in Attach Accept, not only comprise the temporary mark that management entity distributed that current UE is adhered to, also comprise the temporary mark that another management entity distributed on the described mobile management network element, the management entity that described current UE is adhered to is on described mobile management network element;

Selected cell is used for the temporary mark that management entity distributed that the temporary mark that management entity distributed on described mobile management network element selects to wait the system that cuts;

Transmitting element is used for sending position updating request to the access network managed network element, carries selected temporary mark in the described position updating request; Described temporary mark is used for the described mobile management network element of described access network managed network element addressing.

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