CN101257707A - Routing method when mobile terminal activating service in wireless network - Google Patents

Routing method when mobile terminal activating service in wireless network Download PDF

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Publication number
CN101257707A
CN101257707A CNA2007101304076A CN200710130407A CN101257707A CN 101257707 A CN101257707 A CN 101257707A CN A2007101304076 A CNA2007101304076 A CN A2007101304076A CN 200710130407 A CN200710130407 A CN 200710130407A CN 101257707 A CN101257707 A CN 101257707A
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core network
service nodes
network service
mme
plmn
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CN101257707B (en
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宗在峰
朱进国
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2007/003865 priority patent/WO2009009938A1/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W12/00Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/08Access security
    • H04W12/086Access security using security domains

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Abstract

A routing method is adaptable to need of intercommunication between wireless access systems and all-IP core networks, can not limit numbers of subscribers managed by a pool when a mobile terminal activates services in a wireless network. The mobile terminal preserves MME ID and Pool ID in advance, includes following steps: (a) sending a service request message and an identification information of the mobile terminal to a wireless access network unit, the identification information includes MME ID, Pool ID and PLMN ID; (b) the wireless access network unit judges the Pool ID in the identification information is the ID of a core network node pool connected with the wireless access network unit, the core network node pool belongs to the PLMN designated by the PLMN ID, and the MME ID is not empty, thereby the wireless access network unit sends the service request message of the terminal to a core network service node corresponding to a domain name according to the domain name of the core network service node composed of PLMN ID, Pool ID and MME ID.

Description

Method for routing in a kind of wireless network during mobile terminal activating service
Technical field
The present invention relates to wireless network, particularly the method for routing during mobile terminal activating service in the wireless network.
Background technology
The method of one group of radio network controller of a kind of core net node managed together (RNC) has been described in the version 5 (hereinafter to be referred as R5) of the relevant WCDMA that 3GPP issues, that is the notion in so-called " pond ".A node pool of core network is defined as: the zone of a MS (Mobile Station, travelling carriage) roaming but needn't change core network service nodes (Serving CN Node); A pond is by one or more core network service nodes common service; All sub-districts of RNC management all belong to same pond.
In R5, NRI (Network Resource Identifier) is used for identifying different core network service nodes.When portable terminal was registered in certain pond first, RNC distributed a core network service nodes according to the load sharing principle for it, and the login request message of portable terminal is sent to this core network service nodes.After successfully registering, core network service nodes can send to portable terminal with own pairing NRI, and portable terminal is preserved this NRI.
All disposed the mapping table of a NRI among all RNC in the pond to core network service nodes IP address.When portable terminal sent non-access layer information (NAS) once more in this pond, portable terminal had NRI in message.RNC searches the IP address of core network service nodes according to NRI from the mapping table of configuration, and the non-access layer information (NAS message) from portable terminal is transmitted to this core network service nodes.
In R5, for the version (R99 and R4) before the compatibility, NRI is planned to the part of TMSI (temporary mobile subscriber identity).This has limited the number of users of managing in a pond must not surpass 2 at most TMSIIndividual.And the part of TMSI also will be used as other management functions, such as visitor register (VLR) restart sign etc., the number of users of pond institute actual management is than 2 TMSIFew.This has limited the expansion in pond.
And in R5, the mapping table of NRI and core network service nodes IP address disposes in RNC.This configuration effort amount increases along with increasing of RNC, and the configuration effort amount is the product of quantity and the core network service nodes quantity of RNC, and this has also limited the expansion in pond.
Even this method for routing among the R5 can adapt to the demand of 3G (3-G (Generation Three mobile communication system)), because the connectedness between RNC and core network service nodes is actually certain limitation in 3G network.But along with IPization deepens continuously, can accomplish the all-IP intercommunication between wireless access system and core net, the pond can be disposed very big that to reach more resource-sharings, this moment, present method for routing just can not be satisfied the demand again.
Summary of the invention
Method for routing when technical problem to be solved by this invention provides a kind of mobile terminal activating service can adapt to the needs of wireless access system and the intercommunication of core net all-IP, and the number of users that the pond is managed no longer includes restriction.
In order to solve the problems of the technologies described above, method for routing when the invention provides mobile terminal activating service in a kind of wireless network, described portable terminal has been preserved core network service nodes sign MME ID and core network service nodes pond sign Pool ID in advance, may further comprise the steps:
(a) business request information of portable terminal and identification information send to the Radio Access Network unit, and described identification information comprises MME ID, Pool ID and public land mobile net sign PLMN ID;
(b) the Pool ID in the described identification information of described Radio Access Network unit judges is the ID in the core network service nodes pond that connected, this Radio Access Network unit, and this core network service nodes pond belongs to the specified PLMN of PLMN ID, and MME ID is not empty, then described Radio Access Network unit sends to the business request information of described terminal the core network service nodes of this domain name correspondence according to the domain name of PLMN ID, Pool ID and MME ID composition core network service nodes.
Further, said method also can comprise following characteristics: in described step (a), the business request information of described portable terminal and identification information by and the Radio Access Network unit between the initial direct-sending message of radio resource control information send described Radio Access Network unit to.
Further, said method also can comprise following characteristics: in described step (b), the domain name in the core network service nodes pond that described Radio Access Network unit generates is MME ID.Pool ID.PLMNID.
Further, said method also can comprise following characteristics: described core network service nodes is a Mobility Management Entity, and described Radio Access Network unit is evolved Node B.
Further, said method also can comprise following characteristics: described portable terminal is preserved MME ID and Pool ID during in when registration or at tracing section updating.
Further, said method also can comprise following characteristics: the registration of portable terminal and tracing section updating process may further comprise the steps:
Identification information when (A) portable terminal is with Attach Request message or tracing section updating request message and last registration sends to the Radio Access Network unit, and described identification information comprises MME ID, PoolID and PLMN ID;
(B) described Radio Access Network unit judges is if described PLMN ID is effective, MME ID and Pool ID are invalid, then generate the domain name in the core network service nodes pond of this PLMN correspondence that connects for described terminal, visit the resource management server of this core network service nodes pond correspondence according to domain name according to described PLMN ID;
(C) described resource management server is described terminal distribution core network service nodes, by described resource management server or Radio Access Network unit described Attach Request message or tracing section updating request message is sent to the core network service nodes that described resource management server distributes;
(D) after described core network service nodes is received Attach Request message or tracing section updating request message, register to home subscriber server, send success response message to portable terminal, carry the identification information of current core network service nodes in the message, comprise MME ID, PoolID, perhaps also comprise PLMNID;
(E) after described portable terminal is received success response message, preserve identification information wherein.
Further, said method also can comprise following characteristics: in described step (A), the Attach Request message of described portable terminal or tracing section updating request message and described identification information by and the Radio Access Network unit between the initial direct-sending message of radio resource control information send described Radio Access Network unit to.
Further, said method also can comprise following characteristics: in described step (B), the PLMN ID that ask according to portable terminal described Radio Access Network unit selects corresponding Pool ID, and the domain name in the core network service nodes pond of described generation is PoolID.PLMN ID.
Further, said method also can comprise following characteristics: in described step (B), described Radio Access Network unit access resource management server, distribute core network service nodes to adopt one of following method by resource management server: described Radio Access Network unit will send to described resource management server from Attach Request message or the tracing section updating request message that portable terminal is sent, described resource management server is that described portable terminal distributes core network service nodes according to the load sharing principle, and described Attach Request message or tracing section updating request message is redirected to the core network service nodes of this distribution; Perhaps, described Radio Access Network unit distributes core network service nodes according to domain name to the resource management server request, resource management server is after portable terminal distributes core network service nodes according to the load sharing principle, and described Radio Access Network unit is transmitted to the core network service nodes that described resource management server distributes with described Attach Request message or tracing section updating request message.
Further, said method also can comprise following characteristics: described Radio Access Network unit is transmitted to the core network service nodes that described resource management server distributes with described Attach Request message or tracing section updating request message, be the IP address that obtains described core network service nodes according to the domain name lookup domain name resolution server of core network service nodes, more described non-access layer information transmitted in the past.
Further, said method also can comprise following characteristics: in described step (D), described core network service nodes is after the home subscriber server registration, and described home subscriber server returns user's CAMEL-Subscription-Information to it.
Further, said method also can comprise following characteristics: when described non-access layer information was Attach Request message, in described step (D), described core network service nodes sent success response message to portable terminal after setting up the IP carrying again.
Further, said method also can comprise following characteristics: described PLMN ID effectively is meant the PLMNID value not for empty, and this Radio Access Network unit belongs to the public land mobile network of this PLMN ID sign; Described Pool ID is meant that effectively Pool ID value is not for empty, and this core network service nodes pond is the Pool ID in a certain core network service nodes pond of this Radio Access Network unit of management, and the PLMN ID in the corresponding core network service nodes pond of described PLMN ID and Pool ID is consistent; Described MMEID effectively is meant MME ID value not for empty, and pairing Pool ID is effective.
The invention provides a kind ofly in the network of being made up of a plurality of Radio Access Networks unit and a plurality of core network service nodes, the Radio Access Network unit effectively is routed to message the method for a certain core network service nodes.Scheme of the present invention can adapt to the needs of wireless access system and the intercommunication of core net all-IP based on the IP framework.The present invention has adopted a kind of new parameter: use an identifier MME ID who is independent of TMSI to identify core network service nodes in the pond, and do not re-use the TMSI field as sign, therefore the number of users that the pond is managed without limits.In addition, can accomplish to need not in the Radio Access Network unit, to dispose mapping table, inquire about the IP address that certain central control unit obtains the core net service station, alleviate the workload of Radio Access Network unit, conserve system resources by RAN.
Description of drawings
Fig. 1 is the networking structure figure between a plurality of Radio Access Networks unit and a plurality of core network node;
Fig. 2 is the first embodiment of the invention flow chart;
Fig. 3 is the second embodiment of the invention flow chart;
Fig. 4 is the third embodiment of the invention flow chart.
Embodiment
Below in conjunction with the drawings and specific embodiments invention is described in further detail.
The present invention is directed to the problem that exists among the R5 and done following improvement:
At first, the core network service nodes in a pond no longer makes a check mark with the field of TMSI, and is to use an identifier MME ID (MME Identifier) who is independent of TMSI to identify;
Secondly, do not need the mapping between the IP address of MME ID and core network service nodes is disposed in the Radio Access Network unit by hand, but inquire about the IP address that certain central control unit (as dns server or resource management server) obtains core network service nodes by Radio Access Network unit R AN.
The overall identification of present embodiment core network service nodes is made of jointly the sign (PLMN ID) of public land mobile network, the sign (Pool ID) in core network service nodes pond and the sign (MME ID) of the core network service nodes in the pond.A core network service nodes pond is meant one group of core network service nodes of one group of Radio Access Network of managed together (RAN), and core network service nodes remains unchanged when portable terminal is mobile in the Radio Access Network (RAN) that this core network service nodes pond is managed.One group of tracking area is also managed in a core network service nodes pond, the corresponding tracking area identification symbol of each tracking area, tracking area identification symbol (Tracking Area ID, TAI) whole public-land mobile network PLMN (Public Land Mobile Network, unique in PLMN).Pool ID can be the identifier (TAI) of its a certain tracking area of managing, also can be an identifier that is independent of tracking area identification.Pool ID and PLMN ID can form the domain name in a certain core network service nodes pond, this core network service nodes pond of unique identification.
When the non-access layer information (NAS message) that the portable terminal that is in idle condition sends is received in the Radio Access Network unit, check wherein whether carry identification information, described identification information comprises PLMNID, Pool ID and MME ID, takes following different processing according to the difference of effective situation of identification information:
If 1. PLMN ID, the Pool ID and the MME ID that receive of Radio Access Network unit is all effective, then identification information MME ID, Pool ID, PLMN ID are formed the domain name of the core network service nodes of portable terminal, this core network service nodes of unique identification.According to this domain name, the IP address that Radio Access Network unit inquiry dns server or resource management server obtain core network service nodes, thereby communication with it send to core network service nodes with the non-access layer information of portable terminal;
The Radio Access Network unit with the method for a kind of optional generation domain name of MME ID, Pool ID and PLMN ID composition core network service nodes domain name is: domain name=MME ID.Pool ID.PLMN ID.
If 2. the PLMN ID and the Pool ID that receive of Radio Access Network unit is effective, but the MME ID that receives is invalid, then construct the domain name in core network service nodes pond, manage the pairing resource management server in core network service nodes pond of this Radio Access Network unit according to this domain name access, is that portable terminal distributes a core network service nodes by resource management server according to the load sharing principle, and the Radio Access Network unit sends to core network service nodes with the non-access layer information of portable terminal;
Above-mentioned resource management server can be the independent server that is provided with, and also can be distributed in each core network service nodes;
If 3. the PLMN ID that receives of Radio Access Network unit is effective, but the Pool ID and the MME ID that receive are invalid, then at first determine Pool ID (PLMN has only a MME Pool to link to each other with a Radio Access Network unit) according to PLMN ID, construct the domain name in core network service nodes pond again, according to this pairing resource management server in core network service nodes pond of this domain name access, distribute core network service nodes by resource management server, the Radio Access Network unit sends to core network service nodes with the non-access layer information of portable terminal;
If 4. PLMN ID, the Pool ID and the MME ID that receive of Radio Access Network unit is all invalid, then return failed message to UE.
Above-mentioned effective PLMN ID is meant that PLMN ID value is not NULL, and this Radio Access Network unit belongs to the public land mobile network of this PLMN ID sign; Effectively Pool ID is meant that the PoolID value is not NULL, and this core network service nodes pond is the Pool ID in a certain core network service nodes pond of this Radio Access Network unit of management, and the PLMN ID in the corresponding core network service nodes pond of aforementioned PLMN ID and Pool ID is consistent; Effectively MME ID is meant that MME ID value is not NULL, and pairing Pool ID is effective.The Radio Access Network unit can be simultaneously by the management of a plurality of core network service nodes pond, is separate but manage between a plurality of core network service nodes pond of same Radio Access Network unit, does not have to interact.
After core network service nodes is successfully registered this portable terminal, the PLMN ID that sends in the response message of portable terminal the Pool ID in the MME ID of this core network service nodes and its core network service nodes pond, place and corresponding public-land mobile network in core network service nodes sends to portable terminal, so that portable terminal carries the core network service nodes that makes the Radio Access Network unit can find it to register to the Radio Access Network unit with up-to-date MME ID, Pool ID and PLMN ID when initiating new service request next time.
Described non-access layer information is the message between portable terminal and core network service nodes, and access message is the message between UE and Radio Access Network unit.Between Radio Access Network unit and UE, non-access layer information also transmits by inserting message.In order to save the trouble of Radio Access Network unit decodes non-access layer information, transmit and MME ID, Pool ID, PLMN ID be placed on to insert in the message.
First embodiment
As shown in Figure 2, present embodiment is the flow process when portable terminal is registered in network first.Present embodiment is applied in the System Architecture Evolution (SAE), contrast Fig. 1, MME among Fig. 2 (MobilityManagement Entity, Mobility Management Entity) core network service nodes in the corresponding diagram 1, Radio Access Network unit in eNB (evolved Node B) corresponding diagram 1, the portable terminal in UE (subscriber equipment) corresponding diagram 1.
Register flow path may further comprise the steps:
Step 201, the Attach Request message of UE transmits by the initial direct-sending message of the RRC between UE and the eNB (Radio Resource control) message, comprise the identification information when Attach Request message (non-access layer information) between UE and MME and UE registered last time in the initial direct-sending message, described identification information comprises: MME ID (Mobility Management Entity sign), Pool ID (core network service nodes pond sign), PLMN ID (public land mobile net sign);
Because UE registers in network for the first time when sending Attach Request message, the MME ID and the Pool ID of UE initial direct-sending message are set to NULL, and be promptly invalid, and PLMN ID is set to the PLMN ID of the selected network of UE; In non-access layer information (Attach Request message), UE carries MME ID, Pool ID and the PLMN ID of the MME that registered the place last time, and alternatively, UE also portability registered the TAI (tracking area ID) at place last time.
Step 202 after eNB receives initial direct-sending message, parses identification information, judges whether the PLMN ID in the described identification information is effective, if, carry out next step, otherwise directly returning failure response, eNB gives UE, registration process finishes;
Step 203, if eNB judges that PLMN ID is effective, MME ID and Pool ID are invalid, then eNB is the MME pond that UE selects this PLMN correspondence according to PLMN ID, and the Pool ID in the decision MME pond that will connect (the configuration POOL ID of the difference correspondence in a plurality of MME pond of connection to some extent among the eNB, and the pairing PLMN ID of each POOL ID), generate the domain name in MME pond, as: Pool ID.PLMN ID, eNB is according to this pairing resource management server in MME pond of this domain name access, and distributes MME according to the load sharing principle to UE by this pairing resource management server in MME pond;
Distribute MME can adopt following two kinds of methods, shown in empty frame a and b among the figure.
First method:
A1, eNB will send to the pairing resource management server of the domain name that is generated from the Attach Request message that UE sends;
A2, resource management server are that UE distributes MME according to the load sharing principle, and Attach Request message is redirected to the MME of this distribution, promptly directly Attach Request message are sent to MME.
Resource management server can be one or more independent servers that are provided with, and also this function can be distributed in all MME in the MME pond.If the MME that distributes is a resource management server self, then do not need execution in step A2.
Second method:
B1, eNB distributes MME according to the domain name that is generated to the resource management server request;
B2, resource management server distributes MME according to the load sharing principle to UE;
At this moment, resource management server is the independent one or more servers that are provided with, and the function of this server can be integrated among the domain name resolution server DNS.
B3, eNB will be transmitted to the MME that resource management server distributes from the Attach Request message that UE receives.
When eNB transmitted message to MME, pass by forwards the IP address of searching this MME earlier again.
Step 204 after MME receives Attach Request message, judges whether carried effectively old Pool ID (or old TAI) and old MME ID in the Attach Request message, if, carry out next step, otherwise, step 207 changeed;
Step 205, MME parses the domain name that UE registers the old MME at place for the last time according to the old Pool ID (or old TAI) and the old MME ID that carry in the Attach Request message, and obtain the IP address of described old MME by dns resolution according to this domain name, and to this old MME transmission request transmission UE context message, described UE context message comprises user profile such as user key, signatory attribute;
Because a MME Pool manages one group of TA, and TA is that the overall situation is unique, and therefore TAI can be used to identify MME Pool when the TA in two MME ponds is not overlapping.
Step 206, old MME sends to the context message of UE the MME of this moment;
Step 207, whether MME decision needs the user is authenticated (for example, if the user is new user, or the authentication of last time is when soon expired) as required, if then MME authenticates UE, carries out next step, otherwise, directly carry out next step;
Step 208, MME is this UE service to home subscriber server HSS registration oneself;
Step 209 after HSS receives the registration message of MME, sends the order of deletion user's context message to old MME;
Step 210, old MME deletes user's context or be designated and do not exist;
Step 211, HSS inserts user signing contract information to MME;
Step 212 is set up default IP carrying (be distributing IP, connect) under the control of MME;
This step also needs the participation of core net user plane unit, and not within discussion scope of the present invention, not going to live in the household of one's in-laws on getting married adds description.
Step 213, MME sends registration confirmation message (or be called to adhere to accept message) to UE, if core network service nodes is judged MME ID change (promptly the MME ID in the non-access message that sends with portable terminal is inconsistent) has been taken place, then core network service nodes is carried up-to-date identification information in described acknowledge message, comprise MME ID, Pool ID, perhaps also comprise PLMN ID;
Step 214 after UE receives registration confirmation message, is preserved identification information wherein, returns the affirmation of succeeding in registration (or be called adhere to the message of accepting confirmation) to MME.
UE preserves identification information wherein, so that non-access layer information can be properly routed to this MME when inserting next time.
Second embodiment
As shown in Figure 3, present embodiment is a portable terminal when remaining in the wireless access network scope of being managed in same MME pond, activates certain flow process when professional in idle condition.In this flow process, UE has preserved effective MME ID and Pool ID before initiating service request.Its step is as described below:
Step 301, the business request information of UE transmits by the initial direct-sending message of the RRC message between UE and the eNB, comprise the identification information when business request information (non-access layer information) and UE register for the last time in the initial direct-sending message, described identification information comprises MME ID, Pool ID and PLMNID;
In initial direct-sending message, carry identification information and be and need not to resolve non-access layer information (service request here) when making the eNB pathfinding.
Step 302, after eNB receives initial direct-sending message, parse identification information, judge that Pool ID in the described identification information is the ID in certain MME pond of connecting of this eNB, and this MME pond belongs to the specified PLMN of PLMN ID, and MME ID is not NULL, and then eNB forms the domain name of MME according to PLMN ID, Pool ID and MME ID, as: MME ID.Pool ID.PLMN ID;
Step 303, eNB finds described MME (domain name is converted to the IP address location to MME) according to above-mentioned domain name, sets up related (as RRC and signaling link are bound) between UE and this MME, and the business request information of UE is sent to this MME;
After MME receives business request information, as required described UE is authenticated.Follow-up non-access layer information is directly transmitted between MME and UE, and eNB need not to resolve once more domain name.
The 3rd embodiment
As shown in Figure 4, present embodiment is the tracing section updating flow process of portable terminal when idle condition is moved to the wireless access network scope of being managed in another MME pond.In this flow process, the Pool ID that preserves in the UE is not the ID in the MME pond that will insert at present, and therefore, the Pool ID and the MME ID that preserve in the UE are invalid.Its step is as described below:
Step 401, when UE detects tracking area and changes (the tracking area tabulation that the tracking area tabulation and the UE of Cell Broadcast CB preserved do not have occur simultaneously), send the tracing section updating request message, the tracing section updating request message of UE transmits by the RRC message initial direct-sending message between UE and the eNB, comprise the identification information when tracing section updating request message (non-access layer information) and UE register for the last time in the initial direct-sending message, described identification information comprises: MME ID, Pool ID and PLMN ID;
Described tracing section updating request message sends to MME, and this message needs to be sent to eNB by the RRC message initial direct-sending message between UE and eNB.
Step 402 after eNB receives initial direct-sending message, parses identification information, judges whether the PLMN ID in the described identification information is effective, if, carry out next step, otherwise directly returning failure response, eNB gives UE, registration process finishes;
Step 403, eNB judges that PLMN ID is effective, MME ID and Pool ID are invalid, the Pool ID in the MME pond that decision will connect according to PLMNID, and generation domain name, as: Pool ID.PLMN ID, eNB be according to this pairing resource management server in MME pond of this domain name access, and distribute a MME according to the load sharing principle to UE by this resource management server;
In the present embodiment, the Pool ID of this eNB of management is different among Pool ID and the same PLMN, and the MME pond changes, though this moment MME ID and Pool ID be not NULL, still be invalid, need redistribute MME.
Distribute MME that following two kinds of methods are arranged, shown in empty frame a and b among the figure.
First method:
A1, eNB will send to the pairing resource management server of the domain name that is generated from the tracking update inquiry information that UE sends;
A2, resource management server are that UE distributes MME according to the load sharing principle, and will follow the tracks of the MME that update inquiry information is redirected to this distribution.
Resource management server can be one or more independent servers that are provided with, and also this function can be distributed in all MME in the MME pond.If the MME that distributes is a resource management server self, then do not need execution in step A2.
Second method:
B1, eNB distributes MME according to the domain name that is generated to the resource management server request;
B2, resource management server distributes MME according to the load sharing principle to UE;
At this moment, resource management server is the independent one or more servers that are provided with.The function of this server can be integrated among the domain name resolution server DNS.
B3, eNB will be transmitted to the MME that resource management server distributes from the tracking update inquiry information that UE receives.
When eNB transmitted message to MME, pass by forwards the IP address of searching this MME in the central control unit earlier again.
Step 404 after MME receives and follows the tracks of update inquiry information, is judged and is followed the tracks of whether carried effectively old Pool ID (or old TAI) and old MME ID in the update inquiry information, if, carry out next step, otherwise, execution in step 407;
Step 405, MME parses the IP address that UE registers the old MME at place for the last time according to the old Pool ID (or old TAI) and the old MME ID that follow the tracks of in the update inquiry information, and sends request transmission UE context message to this OldMME;
Step 406, old MME sends to MME at this moment with the context message of UE, and described UE context message comprises user profile such as user key, signatory attribute;
Step 407, whether MME decision needs the user is authenticated (for example, if the user be new user, or the authentication of last time is when soon expired) as required, if then newly MME authenticates UE, carries out next step, otherwise, directly carry out next step;
Step 408, MME is this UE service to HSS registration oneself;
Step 409 after HSS receives the registration message of MME, sends the order of deletion user's context to old MME;
Step 410, old MME deletes user's context or be designated and do not exist;
Step 411, HSS inserts user signing contract information to MME;
Step 412, MME sends tracing section updating to UE and accepts message, carries identification information in this message, comprises MME ID, Pool ID, perhaps also comprises PLMN ID;
Step 413 after UE receives that tracing section updating is accepted message, is preserved identification information wherein, confirms the tracing section updating success to MME.
UE preserves identification information wherein, so that non-access layer information can be properly routed to this MME when inserting next time.

Claims (13)

1. the method for routing during mobile terminal activating service in the wireless network, described portable terminal has been preserved core network service nodes sign MME ID and core network service nodes pond sign Pool ID in advance, may further comprise the steps:
(a) business request information of portable terminal and identification information send to the Radio Access Network unit, and described identification information comprises MME ID, Pool ID and public land mobile net sign PLMN ID;
(b) PoolID in the described identification information of described Radio Access Network unit judges is the ID in the core network service nodes pond that connected, this Radio Access Network unit, and this core network service nodes pond belongs to the specified PLMN of PLMN ID, and MME ID is not empty, then described Radio Access Network unit sends to the business request information of described terminal the core network service nodes of this domain name correspondence according to the domain name of PLMN ID, Pool ID and MME ID composition core network service nodes.
2. the method for claim 1, it is characterized in that, in described step (a), the business request information of described portable terminal and identification information by and the Radio Access Network unit between the initial direct-sending message of radio resource control information send described Radio Access Network unit to.
3. the method for claim 1 is characterized in that, in described step (b), the domain name in the core network service nodes pond that described Radio Access Network unit generates is MME ID.PoolID.PLMN ID.
4. the method for claim 1 is characterized in that, described core network service nodes is a Mobility Management Entity, and described Radio Access Network unit is evolved Node B.
5. the method for claim 1 is characterized in that, described portable terminal is preserved MME ID and Pool ID during in when registration or at tracing section updating.
6. method as claimed in claim 5 is characterized in that, the registration of portable terminal and tracing section updating process may further comprise the steps:
Identification information when (A) portable terminal is with Attach Request message or tracing section updating request message and last registration sends to the Radio Access Network unit, and described identification information comprises MME ID, PoolID and PLMN ID;
(B) described Radio Access Network unit judges is if described PLMN ID is effective, MME ID and PoolID are invalid, then generate the domain name in the core network service nodes pond of this PLMN correspondence that connects for described terminal, visit the resource management server of this core network service nodes pond correspondence according to domain name according to described PLMN ID;
(C) described resource management server is described terminal distribution core network service nodes, by described resource management server or Radio Access Network unit described Attach Request message or tracing section updating request message is sent to the core network service nodes that described resource management server distributes;
(D) after described core network service nodes is received Attach Request message or tracing section updating request message, register to home subscriber server, send success response message to portable terminal, carry the identification information of current core network service nodes in the message, comprise MME ID, Pool ID, perhaps also comprise PLMNID;
(E) after described portable terminal is received success response message, preserve identification information wherein.
7. method as claimed in claim 6, it is characterized in that, in described step (A), the Attach Request message of described portable terminal or tracing section updating request message and described identification information by and the Radio Access Network unit between the initial direct-sending message of radio resource control information send described Radio Access Network unit to.
8. method as claimed in claim 6, it is characterized in that, in described step (B), the PLMN ID that ask according to portable terminal described Radio Access Network unit selects corresponding PoolID, and the domain name in the core network service nodes pond of described generation is Pool ID.PLMN ID.
9. method as claimed in claim 6 is characterized in that, in described step (B), described Radio Access Network unit access resource management server, distribute core network service nodes to adopt one of following method by resource management server:
Described Radio Access Network unit will send to described resource management server from Attach Request message or the tracing section updating request message that portable terminal is sent, described resource management server is that described portable terminal distributes core network service nodes according to the load sharing principle, and described Attach Request message or tracing section updating request message is redirected to the core network service nodes of this distribution;
Perhaps, described Radio Access Network unit distributes core network service nodes according to domain name to the resource management server request, resource management server is after portable terminal distributes core network service nodes according to the load sharing principle, and described Radio Access Network unit is transmitted to the core network service nodes that described resource management server distributes with described Attach Request message or tracing section updating request message.
10. method as claimed in claim 9, it is characterized in that, described Radio Access Network unit is transmitted to the core network service nodes that described resource management server distributes with described Attach Request message or tracing section updating request message, be the IP address that obtains described core network service nodes according to the domain name lookup domain name resolution server of core network service nodes, more described non-access layer information transmitted in the past.
11. method as claimed in claim 6 is characterized in that, in described step (D), described core network service nodes is after the home subscriber server registration, and described home subscriber server returns user's CAMEL-Subscription-Information to it.
12. method as claimed in claim 6 is characterized in that, when described non-access layer information was Attach Request message, in described step (D), described core network service nodes sent success response message to portable terminal after setting up the IP carrying again.
13. method as claimed in claim 6 is characterized in that, described PLMN ID effectively is meant PLMN ID value not for empty, and this Radio Access Network unit belongs to the public land mobile network of this PLMN ID sign; Described Pool ID is meant that effectively Pool ID value is not for empty, and this core network service nodes pond is the Pool ID in a certain core network service nodes pond of this Radio Access Network unit of management, and the PLMN ID in the corresponding core network service nodes pond of described PLMN ID and Pool ID is consistent; Described MME ID effectively is meant MME ID value not for empty, and pairing Pool ID is effective.
CN2007101304076A 2007-03-01 2007-07-18 Routing method when mobile terminal activating service in wireless network Expired - Fee Related CN101257707B (en)

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