CN103841614A - Method, device and system for user terminal transfer in pool - Google Patents
Method, device and system for user terminal transfer in pool Download PDFInfo
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Abstract
The embodiment of the invention provides a method, a device and a system for user terminal transfer in a pool. The method comprises the following steps: a BSC (Basic Station Controller) or an RNC (Radio Network Controller) receives a transfer request sent by a user terminal; and the user terminal is transferred from a source SGSN (Serving GPRS Support Node) to a target SGSN according to an NRI (Network Resource Identity) and a non-broadcast RAI (Routing Area Identity), carried in the received transfer request, of the target SGSN. According to the embodiment of the invention, the load of an SGSN in a pool does not need to be adjusted by the BSC or the RNC, the BSC or the RNC can transfer the user terminal from a source SGSN to a specified target SGSN only according to the NRI, carried in the transfer request sent by the user terminal, of the target SGSN, directional migration is realized, and the migration efficiency is high.
Description
Technical field
The present invention relates to mobile communication technology field, relate in particular to method, the Apparatus and system of migrated users terminal in a kind of pond.
Background technology
At present, service universal grouping wireless business supporting node (Serving GPRS Support Node, SGSN) pond (Pool) is a kind of new networking mode, this networking model has been broken a base station controller (Basic Station Controller in legacy network, BSC) restriction that/radio network controller (Radio Network Controller, RNC) can only be linked a SGSN.
Particularly, as shown in Figure 1, a Pool district can comprise that one group of SGSN moves (for example SGSN101, SGSN102 and SGSN103) concurrently, this group SGSN can be routed to multiple BSC/RNC (for example BSC/RNC104, BSC/RNC105, BSC/RNC106 and BSC/RNC107), jointly shares the business in Pool district.Here, each BSC/RNC all possesses (the Mobile Subscribdr for mobile subscriber, MS) select SGSN that the function of service is provided, like this, when MS (can be also user terminal) covers lower time in the Radio Resource in Pool district, it only can be served by a SGSN node in this Pool district, and in the time that MS roams in Pool district, without the SGSN that changes into its service, thereby reduce renewal, switching and the migration between multiple SGSN in Pool district.
Under normal circumstances, mobile subscriber enters behind the overlay area in Pool district, BSC/RNC can be assigned to the SGSN in Pool district by mobile subscriber in the mode of poll, every SGSN distributes a network resource identifier that comprises this SGSN (Network Resource Identity to mobile subscriber, NRI, in SGSN Pool, be used for distinguishing the coding of SGSN) grouping temporarily moved subscriber identification (Packet Temporary Mobile Subscriber Identities, PTMSI) coding, it is the upper identification of SGSN mobile subscriber's coding, this NRI is the 14-23 position of PTMSI coding, as shown in table 1 below.Like this, mobile subscriber is follow-up when moving in Pool and carrying out Business Processing, and the NRI field that BSC/RNC can report according to mobile subscriber identifies the SGSN that user adheres to, and directly this mobile subscriber's association requests is sent to this SGSN.
Table 1
But, along with the evolution of technology and the update of equipment, in SGSN Pool, the disposal ability of SGSN is incomplete same, capacity limit is also incomplete same, in the disposal ability upper limit that has reached in some cases SGSN, or to newly-increased SGSN or when exiting SGSN and adjusting, all exist the user who adheres on SGSN is adjusted to the demand on other SGSN in Pool district.
For example, as shown in Figure 2, Pool district comprises four SGSN, is respectively SGSN201, SGSN202, SGSN203 and SGSN204, the mobile subscriber who wherein adheres on SGSN201, SGSN202 and SGSN204 is transshipped, and SGSN203 networks after exiting networking again, also do not adhere to mobile subscriber, substantially non-loaded, in this case, need to fast mobile subscriber be moved to SGSN203 upper, to reduce the load of other three SGSN, thereby realize the load balancing of SGSN in Pool.
So, in order to realize the object of the load balancing of SGSN in above-mentioned Pool, conventionally need to carry out dismounting flow process to extra-heavy SGSN, below take an extra-heavy SGSN as example, the flow process that once SGSN dismantles the mobile subscriber of the mobile subscriber who newly adheres to and transmission Routing Area Update message is described, as shown in Figure 3, specifically comprise the steps:
S301: when SGSN receives (the Operation Maintenance Center of operation maintenance center, OMC) issue dismounting instruction time, self is set to disassembly status, and to mobile subscriber send carry special NRI (Null-NRI), non-broadcast district mark (Non-broadcast Routing Area Identity, non-broadcast RAI) and set duration adhere to acceptance (attach accept) message or Routing Area Update acceptance (RAUaccept) message;
Here, Null-NRI is mainly carry out the processing of mobile subscriber's migration in SGSN Pool time, being used to indicate BSC/RNC is the new available service SGSN of selection of MS according to the principle of load balancing, Non-broadcast RAI is mainly in order to inform that in Pool, mobile subscriber need to redistribute load, conventionally need and Null-NRI is used in conjunction with, set duration and periodically send to adhere to for moving-limiting user and ask or time of Routing Area Update request;
S302: mobile subscriber, according to the setting duration in the message receiving, sends the Routing Area Update request that carries Null-NRI and Non-broadcast RAI to BSC/RNC, for example setting duration is 4 seconds;
S303:BSC/RNC is according to Null-NRI and Non-broadcast RAI in the Routing Area Update request receiving, mobile subscriber is carried out to load distribution, in Pool, the lighter SGSN of all the other loads, select a SGSN, mobile subscriber is moved to this SGSN above, and Routing Area Update request is routed to this SGSN.
While dismantling flow process for the user who attempts PDP activation under above-mentioned SGSN, SGSN can first carry out attachment removal instruction to the user who initiates PDP activation, again adheres to the same step S301-S303 that states of follow-up flow process after user's attachment removal.
For having adhered under above-mentioned SGSN and in the time that the user of data services dismantles flow process, first having carried out attachment removal, after user adheres to again, the same step S301-S303 that states of follow-up flow process.
Can find out from the above-mentioned dismounting flow process to the overweight SGSN of load, when the mobile subscriber who adheres on the overweight SGSN of load is dismantled, for example, as shown in Figure 4, in the time that the overweight SGSN403 of load initiates dismounting flow process, the null-NRI of SGSN403 due to what send to mobile subscriber, like this, these can be used the user of null-NRI according to the mode of poll in BSC/RNC side, be assigned to successively on the SGSN that other Pool internal burdens are lighter, while making to carry out in this way dismounting flow process, if mobile subscriber is dismantled on (moving to) SGSN402 and SGSN404, may can cause again the load of these two SGSN excessive like this, the less SGSN401 of load capacity can not obtain enough equilibriums always simultaneously.As can be seen here, in the dismounting flow process of existing SGSN, when the mobile subscriber that BSC or RNC adhere under the SGSN larger for load redistributes SGSN, what use is the mode of poll, so, while migration for mobile subscriber, there is no specific aim, and transport efficiency is lower.
Summary of the invention
The embodiment of the present invention provides method, the Apparatus and system of migrated users terminal in a kind of pond, when solving the mobile subscriber who adheres under the overweight SGSN of BSC in existing pond or RNC migration load without specific aim and the lower problem of transport efficiency.
Based on the problems referred to above, the method for migrated users terminal in a kind of pond that the embodiment of the present invention provides, comprising:
BSC or RNC receive the migration request that user terminal sends, described migration request is that the setting duration carrying in the migration message that issues according to source SGSN of described user terminal sends, and the NRI and the non-broadcast RAI that in described migration request, carry target, described target SGSN and non-broadcast RAI obtain from described migration message;
BSC or RNC, according to NRI and the non-broadcast RAI of the target SGSN of carrying in the described migration request receiving, move to target SGSN by described user terminal from source SGSN.
The device of migrated users terminal in a kind of pond that the embodiment of the present invention provides, comprising:
Receiver module, the migration request sending for receiving user terminal, described migration request is that the setting duration carrying in the migration message that issues according to source SGSN of described user terminal sends, and the NRI and the non-broadcast RAI that in described migration request, carry target, described target SGSN and non-broadcast RAI obtain from described migration message;
Transferring module, NRI and the non-broadcast RAI of the target SGSN that the described migration request receiving for basis is carried, move to target SGSN by described user terminal from source SGSN.
The method of migrated users terminal in a kind of SGSN pond that the embodiment of the present invention provides, comprising:
When source SGSN receive OMC according to pond in when the dismounting instruction of the NRI that carries target SGSN that issues of the load information of each SGSN, according to the NRI of the target SGSN of carrying in the dismounting instruction receiving, the special NRI of self is revised as to the NRI of target SGSN;
Source SGSN issues migration message to the user terminal self adhering to of setting quantity, and informing user terminal sends migration request according to the setting duration carrying in described migration message to BSC or RNC, in described migration message, also carry NRI and the non-broadcast RAI of target SGSN.
The device of migrated users terminal in a kind of pond that the embodiment of the present invention provides, comprising:
Modified module, for receive as source SGSN OMC according to pond in when the dismounting instruction of the NRI that carries target SGSN that issues of the load information of each SGSN, according to the NRI of the target SGSN of carrying in the dismounting instruction receiving, the special NRI of self is revised as to the NRI of target SGSN, in described dismounting instruction, carries the NRI of target SGSN;
The module of issuing a notice, for issuing migration message to the user terminal self adhering to of setting quantity, and informing user terminal sends migration request according to the setting duration carrying in described migration message to BSC or RNC, in described migration message, also carry NRI and the non-broadcast RAI of target SGSN.
The system of migrated users terminal in a kind of pond that the embodiment of the present invention provides, comprising:
OMC, for according to the load information of each SGSN in pond, issues the dismounting instruction of the NRI that carries target SGSN to source SGSN;
SGSN equipment, be used for receiving described dismounting instruction, and according to the NRI of the target SGSN of carrying in described dismounting instruction, the special NRI of self is revised as after the NRI of target SGSN, issue migration message to the user terminal self adhering to of setting quantity, in described migration message, carry the NRI of target SGSN, non-broadcast RAI and set duration;
BSC or RNC, the migration request sending for receiving setting duration that user terminal carries according to described migration message, the NRI and the non-broadcast district mark RAI that in described migration request, carry target, described target SGSN and non-broadcast RAI obtain from described migration message; And according to the NRI of the target SGSN of carrying in the described migration request receiving and non-broadcast RAI, described user terminal is moved to target SGSN from source SGSN.
The beneficial effect of the embodiment of the present invention comprises: method, the Apparatus and system of migrated users terminal in a kind of pond that the embodiment of the present invention provides, in the method, BSC or RNC only need receive the migration request that user terminal sends, and according to the NRI of the target SGSN of carrying in migration request and non-broadcast RAI, directly user terminal is moved to target SGSN from source SGSN.In embodiments of the present invention, be that user terminal distributes the lighter SGSN of other loads in Pool without BSC or RNC, and only need according to NRI and the non-broadcast RAI of the target SGSN in the migration request of receiving, just can directly user terminal be moved to this target SGSN, this migration pattern has been realized directional migration, and transport efficiency is high.
Accompanying drawing explanation
Fig. 1 is the Organization Chart of SGSN Pool networking in prior art;
Fig. 2 is the capacity schematic diagram of the interior SGSN of Pool in prior art;
Fig. 3 is one of the dismounting schematic flow sheet of SGSN in prior art;
Fig. 4 be SGSN in prior art dismounting schematic flow sheet two;
One of method flow diagram of migrated users terminal in the pond that Fig. 5 provides for the embodiment of the present invention;
In the pond that Fig. 6 provides for the embodiment of the present invention two of the method flow diagram of migrated users terminal;
In the pond that Fig. 7 provides for the embodiment of the present invention three of the method flow diagram of migrated users terminal;
One of structural representation of the device of migrated users terminal in the pond that Fig. 8 provides for the embodiment of the present invention;
In the pond that Fig. 9 provides for the embodiment of the present invention two of the structural representation of the device of migrated users terminal;
The structural representation of the system of migrated users terminal in the pond that Figure 10 provides for the embodiment of the present invention.
Embodiment
In existing Pool in the dismounting flow process of SGSN, when the mobile subscriber that BSC or RNC adhere under the SGSN larger for load redistributes SGSN, use be the mode of poll, so, while migration for mobile subscriber, there is no specific aim, and transport efficiency is lower.For the problems referred to above, the embodiment of the present invention provides method, the Apparatus and system of migrated users terminal in a kind of pond, BSC or RNC only need, according to NRI and the non-broadcast RAI of the target SGSN of receiving, just can directly user terminal be moved to this target SGSN, thereby realize the migration of Pool interior orientation.
Before the method providing in the execution embodiment of the present invention, on OMC, store load separately and ruuning situation even load information that in Pool, each SGSN periodically reports, OMC can monitor in real time to the loading condition of all SGSN in Pool like this, once it is excessive to find that there is the load of part SGSN, can in Pool, select in advance one or more target SGSN (SGSN specifying), in order to the user terminal adhering under SGSN excessive these loads is moved in this target SGSN.Here, target SGSN can be for example the SGSN again networking after the SGSN that again networks after user's adhesive rate is low in Pool SGSN, newly-increased SGSN, logout or logout upgrading, adopts aforementioned this mode, can balanced Pool in the load of each SGSN.
The in the situation that of occurring that in above-mentioned Pool SGSN load is overweight, OMC can issue dismounting instruction to these SGSN (as source SGSN), carries the NRI of target SGSN in this dismounting instruction.
Below in conjunction with Figure of description, in a kind of pond that the embodiment of the present invention is provided, the method for migrated users terminal, the embodiment of Apparatus and system describe.
The method of migrated users terminal in a kind of pond that the embodiment of the present invention provides, take BSC or this side of RNC as example, describes the realization flow of the method, as shown in Figure 5, specifically comprises the following steps:
S501:BSC or RNC receive the migration request that user terminal sends;
In this step, above-mentioned migration request is that the setting duration carrying in the migration message that issues according to source SGSN of user terminal sends, and in migration request, carry NRI and the non-broadcast RAI of target, this target SGSN and non-broadcast RAI obtain from migration message;
S502:BSC or RNC, according to NRI and the non-broadcast RAI of the target SGSN of carrying in the migration request receiving, move to target SGSN by user terminal from source SGSN.
The method of migrated users terminal in a kind of pond that the embodiment of the present invention provides, take this side of SGSN as example, describes the realization flow of the method, as shown in Figure 6, specifically comprises the following steps:
S601: in the time that SGSN receives the dismounting instruction of the NRI that carries target SGSN that OMC issues, according to the NRI of the target SGSN of carrying in the dismounting instruction receiving, the special NRI of self is revised as to the NRI of target SGSN;
S602: source SGSN issues migration message to the user terminal self adhering to of setting quantity, and informing user terminal is according to moving the setting duration carrying in message to BSC or RNC transmission migration request, also carries NRI and the non-broadcast RAI of target SGSN in this migration message.
Preferably, above-mentioned migration request can be for adhering to request or Routing Area Update request; Migration message can be accepted message or Routing Area Update is accepted message for adhering to.
Preferably, above-mentioned setting duration is for example 4 seconds, and user terminal is receiving after this migration message, can start the timer of self, arrives and sets duration for example after 4 seconds until timer, can send migration request to BSC or RNC.
Take OMC, source SGSN, user terminal, BSC and target SGSN as example, the realization flow of said method is described below, as shown in Figure 7, specifically comprise the steps:
S701:OMC issues the dismounting instruction of the NRI that carries target SGSN to source SGSN;
S702: source SGSN receives this dismounting instruction, and according to the NRI of the target SGSN of carrying in dismounting instruction, the special NRI of self is revised as after the NRI of target SGSN, issues and carry the NRI of target SGSN, non-broadcast RAI and set and adhering to of duration accept message to user terminal;
S703: user terminal receives this and adheres to and accept message, and adheres to according to this setting duration of accepting to carry in message, starts the timer of self, until timer then after, initiate the migration request of the NRI and the non-broadcast RAI that carry target SGSN to BSC;
S704:BSC receives this migration request, and according to the NRI of the target SGSN in this request and non-broadcast RAI, this user terminal is moved to target SGSN (being re-assigned to target SGSN) from source SGSN.
In embodiments of the present invention, BSC or RNC also route to target SGSN by migration request after user terminal is moved in target SGSN; Target SGSN receives after the migration request of this user terminal, in the data that can first preserve in this locality, whether inquiry there is this user terminal, do not have if inquired, re-issue the registration message of the NRI that carries target SGSN to this user terminal, allow user again adhere to once, after adhering to successfully, subsequent user terminal can be carried out Business Processing in target SGSN, has realized directional migration.
Based on same inventive concept, the embodiment of the present invention also provides the device of migrated users terminal in a kind of pond, because the principle that this device is dealt with problems is similar to the method for migrated users terminal in aforementioned pond, therefore the enforcement of this device can be referring to the enforcement of preceding method, repeats part and repeat no more.
The embodiment of the present invention provides the device of migrated users terminal in a kind of pond, as shown in Figure 8, specifically comprises:
Transferring module 802, NRI and the non-broadcast RAI of the target SGSN that the migration request receiving for basis is carried, move to target SGSN by user terminal from source SGSN.
Preferably, above-mentioned migration request can be for adhering to request or Routing Area Update request; Migration message can be accepted message or Routing Area Update is accepted message for adhering to.
Based on same inventive concept, the embodiment of the present invention also provides the device of migrated users terminal in a kind of pond, because the principle that this device is dealt with problems is similar to the method for migrated users terminal in aforementioned pond, therefore the enforcement of this device can be referring to the enforcement of preceding method, repeats part and repeat no more.
The embodiment of the present invention provides the device of migrated users terminal in a kind of pond, as shown in Figure 9, specifically comprises:
The module 902 of issuing a notice, for issuing migration message to predefined user terminal, and informing user terminal is according to moving the setting duration carrying in message to BSC or RNC transmission migration request message, also carries NRI and the non-broadcast RAI of target SGSN in migration message.
Preferably, above-mentioned migration request can be for adhering to request or Routing Area Update request; Migration message can be accepted message or Routing Area Update is accepted message for adhering to.
The embodiment of the present invention also provides the system of migrated users terminal in a kind of pond, as shown in figure 10, comprising:
OMC1001, for according to the load information of each SGSN in pond, issues the dismounting instruction of the NRI that carries target SGSN to source SGSN;
BSC or RNC1003, the migration request sending according to the setting duration that carries of migration message for receiving user terminal, carries NRI and the non-broadcast district mark RAI of target in migration request, and target SGSN and non-broadcast RAI obtain from migration message; And according to the NRI of the target SGSN of carrying in the migration request receiving and non-broadcast RAI, user terminal is moved to target SGSN from source SGSN.
Preferably, above-mentioned migration request can be for adhering to request or Routing Area Update request; Migration message can be accepted message or Routing Area Update is accepted message for adhering to.
Method, the Apparatus and system of migrated users terminal in a kind of pond that the embodiment of the present invention provides, in the method, BSC or RNC only need receive the migration request that user terminal sends, and according to the NRI of the target SGSN of carrying in migration request and non-broadcast RAI, directly user terminal is moved to target SGSN from source SGSN.In embodiments of the present invention, be that user terminal distributes the lighter SGSN of other loads in Pool without BSC or RNC, and only need according to NRI and the non-broadcast RAI of the target SGSN in the migration request of receiving, just can directly user terminal be moved to this target SGSN, this migration pattern has been realized directional migration, and transport efficiency is high.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (15)
1. a method for migrated users terminal in pond, is characterized in that, comprising:
Base station controller BSC or radio network controller (RNC) receive the migration request that user terminal sends, described migration request is that the setting duration carrying in the migration message that issues according to source service universal grouping wireless business supporting node SGSN of described user terminal sends, and the network resource identifier NRI and the non-broadcast district mark RAI that in described migration request, carry target, described target SGSN and non-broadcast RAI obtain from described migration message;
BSC or RNC, according to NRI and the non-broadcast RAI of the target SGSN of carrying in the described migration request receiving, move to target SGSN by described user terminal from source SGSN.
2. the method for claim 1, is characterized in that, described migration request is for adhering to request or Routing Area Update request; Described migration message is accepted message or Routing Area Update is accepted message for adhering to.
3. method as claimed in claim 1 or 2, is characterized in that, described target SGSN is the SGSN again networking after the SGSN that again networks after SGSN that in pond, user's adhesive rate is low, newly-increased SGSN, logout or logout upgrading.
4. a device for migrated users terminal in pond, is characterized in that, comprising:
Receiver module, the migration request sending for receiving user terminal, described migration request is that the setting duration carrying in the migration message that issues according to source service universal grouping wireless business supporting node SGSN of described user terminal sends, and the network resource identifier NRI and the non-broadcast district mark RAI that in described migration request, carry target, described target SGSN and non-broadcast RAI obtain from described migration message;
Transferring module, NRI and the non-broadcast RAI of the target SGSN that the described migration request receiving for basis is carried, move to target SGSN by described user terminal from source SGSN.
5. device as claimed in claim 4, is characterized in that, described migration request is for adhering to request or Routing Area Update request; Described migration message is accepted message or Routing Area Update is accepted message for adhering to.
6. the device as described in claim 4 or 5, is characterized in that, described target SGSN is the SGSN again networking after the SGSN that again networks after SGSN that in pond, user's adhesive rate is low, newly-increased SGSN, logout or logout upgrading.
7. a method for migrated users terminal in pond, is characterized in that, comprising:
When source service universal grouping wireless business supporting node SGSN receive the OMC of operation maintenance center according to pond in when the dismounting instruction of the network resource identifier NRI that carries target SGSN that issues of the load information of each SGSN, according to the NRI of the target SGSN of carrying in the dismounting instruction receiving, the special NRI of self is revised as to the NRI of target SGSN;
Source SGSN issues migration message to the user terminal self adhering to of setting quantity, and informing user terminal sends migration request according to the setting duration carrying in described migration message to base station controller BSC or radio network controller (RNC), in described migration message, also carry NRI and the non-broadcast district mark RAI of target SGSN.
8. method as claimed in claim 7, is characterized in that, described migration request is for adhering to request or Routing Area Update request; Described migration message is accepted message or Routing Area Update is accepted message for adhering to.
9. method as claimed in claim 7 or 8, is characterized in that, described target SGSN is the SGSN again networking after the SGSN that again networks after SGSN that in pond, user's adhesive rate is low, newly-increased SGSN, logout or logout upgrading.
10. a device for migrated users terminal in pond, is characterized in that, comprising:
Modified module, for receive as source service universal grouping wireless business supporting node SGSN the OMC of operation maintenance center according to pond in when the dismounting instruction of the network resource identifier NRI that carries target SGSN that issues of the load information of each SGSN, according to the NRI of the target SGSN of carrying in the dismounting instruction receiving, the special NRI of self is revised as to the NRI of target SGSN, in described dismounting instruction, carries the NRI of target SGSN;
The module of issuing a notice, for issuing migration message to the user terminal self adhering to of setting quantity, and informing user terminal sends migration request according to the setting duration carrying in described migration message to base station controller BSC or radio network controller (RNC), in described migration message, also carry NRI and the non-broadcast district mark RAI of target SGSN.
11. devices as claimed in claim 10, is characterized in that, described migration request is for adhering to request or Routing Area Update request; Described migration message is accepted message or Routing Area Update is accepted message for adhering to.
12. the device as described in claim 10 or 11, is characterized in that, described target SGSN is the SGSN again networking after the SGSN that again networks after SGSN that in pond, user's adhesive rate is low, newly-increased SGSN, logout or logout upgrading.
In 13. 1 kinds of ponds, the system of migrated users terminal, is characterized in that, comprising:
The OMC of operation maintenance center, for according to the load information of each service universal grouping wireless business supporting node SGSN in pond, issues the dismounting instruction of the network resource identifier NRI that carries target SGSN to source SGSN;
SGSN equipment, be used for receiving described dismounting instruction, and according to the NRI of the target SGSN of carrying in described dismounting instruction, the special NRI of self is revised as after the NRI of target SGSN, issue migration message to the user terminal self adhering to of setting quantity, in described migration message, carry the NRI of target SGSN, non-broadcast district mark RAI and set duration;
Base station controller BSC or radio network controller (RNC), the migration request sending for receiving setting duration that user terminal carries according to described migration message, the NRI and the non-broadcast district mark RAI that in described migration request, carry target, described target SGSN and non-broadcast RAI obtain from described migration message; And according to the NRI of the target SGSN of carrying in the described migration request receiving and non-broadcast RAI, described user terminal is moved to target SGSN from source SGSN.
14. systems as claimed in claim 13, is characterized in that, described migration request is for adhering to request or Routing Area Update request; Described migration message is accepted message or Routing Area Update is accepted message for adhering to.
15. the system as described in claim 13 or 14, is characterized in that, described target SGSN is the SGSN again networking after the SGSN that again networks after SGSN that in pond, user's adhesive rate is low, newly-increased SGSN, logout or logout upgrading.
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| CN101026564A (en) * | 2007-02-05 | 2007-08-29 | 华为技术有限公司 | Method and system for realizing load migration in pool area |
| EP2107819A1 (en) * | 2007-04-18 | 2009-10-07 | Huawei Technologies Co., Ltd. | The method, system and cn node for load transferring in the pool area |
| CN101111078A (en) * | 2007-08-21 | 2008-01-23 | 华为技术有限公司 | Method for implementing load equalization in pool district and core network node |
| CN101583155A (en) * | 2008-05-16 | 2009-11-18 | 大唐移动通信设备有限公司 | Load migration method for mobile management entity and communication equipment |
| CN101925123A (en) * | 2009-06-12 | 2010-12-22 | 中国移动通信集团设计院有限公司 | Method, system and related functional entities for realizing load balancing in pool area |
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