CN1878342A - Method for realizing load redistribution in association route/location update - Google Patents
Method for realizing load redistribution in association route/location update Download PDFInfo
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Abstract
The invention relates to a method for realizing load redistribution when coupling route/refreshing position, when there is Gs interface exists. Wherein, at the wireless access network node, the invention processes load redistribution on service GPRS support node (SGSN) and MSC at the same time; selects right SGSN and MSC as target SGSN and target MSC; and transmits selected target MSC mark to target SGSN; and the target SGSN, only according to target MSC mark, sends the position refreshing request to target MSC, to confirm the dynamic balance of MSC load, and make the load control decision node (LCDN) uniform.
Description
Technical field
The present invention relates to the heavy distribution technique of load, refer to especially in joint route/position (RA/LA) upgrades, realize the method that core net (CN) node load heavily distributes under a kind of situation that has a Gs interface.
Background technology
Third generation partner program (3GPP) standard TS23.236 has proposed the notion of pool area, and promptly several Radio Access Networks (RAN) node is formed a pool area as the zone of radio network controller (RNC) or base station controller (BSC) covering.A pool area provides service concurrently by several CN nodes usually, also can provide service by a CN node.When a pool area provided service concurrently by several CN nodes, these CN nodes were promptly formed a CN node pool, i.e. MSC pond or Serving GPRS Support Node (SGSN) pond.
For CN node of sign in a CN node pool, each CN node is assigned with one or several network resource identifiers (NRI), and by Operation and Maintenance (O﹠amp; M) operation is configured in the NRI that distributes in the CN node.When the CN node is certain portable terminal (MS) distribution Temporary Mobile Subscriber Identity (TMSI) or packet TMSI (P-TMSI), simultaneously the NRI of this CN node sign is carried at and sends to this MS among the TMSI/P-TMSI, specify a CN that service is provided so just for this MS, this CN can be called service CN.Here, if the CN node is MSC, then be MS distribution T MSI; If the CN node is SGSN, then distribute P-TMSI for MS.
In certain pool area, when MS sets up Non-Access Stratum (NAS) with the CN node when being connected, the NRI that RAN node basis is initially carried in the NAS message is routed to this initial NAS message the CN node of NRI correspondence.As seen, the RAN node is to select the CN node according to the NRI that carries among the TMSI/P-TMSI.
In order to control the load of each CN node in the CN node pool, reduce the risk of CN node overload, present processing is: when renewal of MS executing location or routing update, by the load state of RAN node according to each CN node in the CN node pool, MS is transferred in the low CN node of load.According to the agreement regulation, the RAN node is load control decision node (LCDN, Load Controlling Node).
Here, in following situation, the CN node can send the load information notification message to the RAN node, so that the load state information of current C N node to be provided:
1. RAN node request CN node provides load information;
2. add new CN node in the CN node pool, after this new CN node is restarted;
3. the load level of CN node changes;
4. because of O﹠amp; Action needs such as M stop certain CN node provides service;
5. cancel O﹠amp to the CN node; The M operation planning.
Wherein, the present load situation disposable load level index of CN node represents, and is general, and the load level of CN node is divided into k grade equably, is n as if the rank of certain CN node, and then representing this CN node is k/n full load, here, and n≤k.For example the load level of certain CN node evenly is divided into 8 grades, and promptly k=8 so, if this CN node load rank is 0, represents that then this CN node is that idling carries; If this CN node load rank is 8, represent that then this CN node is a full load; If this CN node load rank is 4, represent that then this CN node is half load or the like.It should be noted that zero load is not that this CN intranodal of expression does not have the user, and be meant that the load of this CN node is minimum.
After the RAN node is received the load information notification message, can from message, obtain the following load information and the state information of CN node:
The CN node identification of unique identification CN node in the CN node pool; The present load rank of CN node, indicate whether this CN node is whether new CN node indication, the indication CN node that newly comes into operation will carry out the O﹠amp of Operation and Maintenance; M operation indication and indication are from sending the load information notification message to carrying out O﹠amp; The time interval between the M operation.
The RAN node carries out load according to following load allocating principle to the CN node and heavily distributes according to the above information of carrying in the load information notification message that receives, and selects appropriate C N node:
1) if O﹠amp; M operation is designated as " 1 ", illustrates that this CN node will carry out Operation and Maintenance, and then this CN node will be from then on not selected, unless receive in the new load information notification message and indicate O﹠amp; The M operation is cancelled, and promptly receives O﹠amp; The M operation is designated as " 0 ";
2) if new CN node is designated as " 1 ", illustrate that this CN node newly comes into operation, then all users select to be connected in this CN node within a certain period of time;
3) except that above two kinds of situations, the RAN node will select the minimum CN node of load level to provide service for the user.
In sum, the RAN node can obtain the load information and the state information of CN node by the load information notification message.Like this, when the RAN node is received co-location/route (RA/LA) update request that UE initiates, the RAN node carries out load according to the load state of the former CN node at current UE place and heavily distributes, and selects appropriate C N node as current CN node.Such as, the overload of the former CN node at UE place, the RAN node is transferred to MS on the low CN node of other load, reaches the purpose that load is dynamically adjusted.Here said overload can be a standard that pre-sets.
But the such scheme of prior art exists under the situation of Gs interface, does not reach the purpose that load is dynamically adjusted.
As everyone knows, CN is from being divided into circuit switching (CS) territory and packet switching (PS) territory in logic.MSC/ VLR Visitor Location Register (VLR) is the functional node in CS territory, SGSN is the functional node in PS territory, can be connected by Gs interface between MSC/VLR and the SGSN, can not link to each other between MSC/VLR and the SGSN yet, situation about being connected by Gs interface between MSC/VLR and the SGSN is called the situation that has Gs interface here.MSC/VLR, SGSN link to each other with the RAN node by Iu_CS interface, Iu_PS interface respectively.
From as seen above-mentioned, under the situation that has Gs interface, the RAN node is connected with SGSN by the Iu_PS interface, is connected with MSC by Gs interface again, at this moment, upgrade if MS initiates associating RA/LA, in order to save interface-free resources, agreement not regulation signaling is directly passed to MSC by the RAN node by the Iu_CS interface, so the RAN node has no idea to reselect MSC by position updating process, promptly when overload takes place Anchor MSC, can not carry out load by the RAN node and heavily distribute, select suitable MSC.
Fig. 1 is that prior art exists under the situation of Gs interface, associating RA/LA upgrades the flow chart of handling, it is the request that comprises route and/or position renewal that UE initiates to the RAN node that associating RA/LA upgrades, and wherein the routing update request is handled by SGSN, and position updating request is handled by MSC.Here, suppose that the RAN node is RNC, this associating RA/LA upgrades processing procedure and specifically may further comprise the steps:
Step 100:UE initiates Routing Area Update request (Routeing Area UpdateRequest) message to RNC.
Step 101:RNC carries out load and heavily distributes according to the loading condition of SGSN node, selects suitable SGSN.
The processing of this step and mentioned abovely the CN node is carried out load heavily distribute selects the method for appropriate C N node in full accord, no longer repeats here.Wherein, load and the state information of RNC by carrying in the load information notification message, the loading condition of acquisition SGSN node.
Step 102:RNC sends to selected SGSN with Routeing Area Update Request message.
In this step, SGSN does following processing according to the indication information in updating type (Update Type) field of carrying in the Routeing Area Update Request message:
If being indicated as being associating RA/LA in the Update the type field upgrades, and the content of Update the type field also comprises joint route/position updating request (combined RA/LA update withIMSI attach requested) that IMSI adheres to, perhaps the Location Area Identification (LAI) in this Routeing Area Update Request message has identified LA and has changed, illustrate that then this Routing Area Update need initiate position updating request through Gs interface to MSC from SGSN, enter step 103;
Otherwise, illustrate that this Routing Area Update belongs to the associating RA/LA update request that does not exist under the Gs interface situation, do not belong in the scope of this paper discussion, its specific implementation can no longer be described here referring to 3GPP TW23.060 agreement regulation.
Step 103:SGSN calculates and selects MSC according to IMSI International Mobile Subscriber Identity (IMSI).
Generally, calculate and select the method for MSC to be according to IMSI: according to the agreement regulation, SGSN use Routing Area Identifier (RAI) and from IMSI everywhere HASH value select MSC, a certain section corresponding some MSC of HASH value.Like this, just selected the MSC of current transmission location request message.Wherein, RAI and IMSI are carried in the UpdateType field of Routeing Area Update Request message.
Above-mentioned according to IMSI calculate and the method for selecting MSC as seen, in this step, without any relation, such processing is difficult to guarantee the MSC that the selects service that can offer the best to the current load state of the selection of MSC and MSC, the MSC of Xuan Zeing is fully loaded with probably.
That is to say that this processing of calculating and select MSC according to IMSI of prior art does not reach MSC is carried out the purpose that load heavily distributes.
Step 104:SGSN sends to the MSC that chooses with position updating request (Location Update Request) message.
The position that step 105～step 106:MSC will carry self TMSI is upgraded and is received (Location Update Accept) message, sends to SGSN; The TMSI of the current MSC that SGSN will receive is carried at Routing Area Update and receives in (Routeing Area Update Accept) message, sends to UE.
In this step, if in step 101, variation has taken place in SGSN, and then SGSN needs the TMSI of the current MSC will receive simultaneously and the P-TMSI of current SGSN to be carried in the RouteingUpdate Accept message, sends to UE.
Generally speaking, when portable terminal is initiated joint route/position when upgrading, the CN node all can change, one changes among SGSN and the MSC but also have, or the two situation about all not changing, in the case, it is constant that processing procedure is upgraded in joint route/position, just, in above-mentioned steps 105～step 106, also may there be two kinds of situations:
If one changes among SGSN and the MSC, then carry TMSI or the P-TMSI that changes in the Routeing Area Update Accept message;
If SGSN and MSC all change, then can not carry TMSI and P-TMSI in the Routeing Area Update Accept message.
Above-mentioned is that UE initiates the existing processing procedure that associating RA/LA upgrades, and handling process can no longer repeat here referring to 3GPP TS 23.060 agreements regulation more specifically.
It is emphasized that from existing method step 103 as seen, existing under the situation of Gs interface, select MSC by SGSN, according to existing processing method, SGSN calculates by IMSI and selects MSC, rather than selects MSC according to the current load state of MSC.Such processing does not reach MSC is carried out the purpose that load heavily distributes, and can not guarantee the dynamic equilibrium of MSC load.
According to present agreement, SGSN can not obtain the current load state information of MSC, so be to select MSC according to load at SGSN, also is can not carry out load to redistribute.Even SGSN can obtain the load information of MSC, be the thought of LCDN, caused the situation of a plurality of LCDN but select MSC also to run counter to the RAN node, promptly comprise RNC and two LCDN of SGSN this moment by SGSN, make the decision point disunity, and decision-making mechanism also can become very complicated.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of and realizes the method that load heavily distributes in associating RA/LA upgrades, this method can reach LCDN node in agreement regulation carries out load to the CN node and heavily distributes, and guarantees the dynamic equilibrium of CN node load and the unification of load control decision node.
For achieving the above object, technical scheme of the present invention specifically is achieved in that
A kind of method that the realization load heavily distributes in joint route/position RA/LA upgrades, this method may further comprise the steps:
A. after Radio Access Network RAN node receives Routing Area Update message from portable terminal, carry out load according to the loading condition of core net CN node and heavily distribute, determine purpose Serving GPRS Support Node SGSN and purpose MSC;
The B.RAN node sends to purpose SGSN with the purpose MSC sign and the Routing Area Update request of determined purpose MSC correspondence, and purpose SGSN sends location update request message to purpose MSC.
Before steps A, this method also comprises: described RAN node determines that according to the indication information in the described Routing Area Update request the current associating RA/LA that is updated to upgrades.
Before steps A, determine current being updated to after associating RA/LA upgrades, this method also comprises: described RAN node is determined joint route/position updating request that the current IMSI of being updated to adheres to according to the indication information in the described Routing Area Update request, or LA changes.
In step B, described RAN node sends to purpose MSC sign after the purpose SGSN, and purpose SGSN is before purpose MSC sends location update request message, and this method also comprises:
Purpose SGSN determines joint route/position updating request that the current IMSI of being updated to adheres to according to the indication information in the described Routing Area Update request that receives, or LA changes.
In step B, the method for described transmission purpose MSC sign is:
Described purpose MSC sign is carried in the new field of Routing Area Update request message and sends;
Or described purpose MSC sign is carried in the Routing Area Update request message sends in the existing reserved field;
Or described purpose MSC sign is carried on to be specifically designed in the message that sends purpose MSC sign sends.
Described MSC is designated the MSC ID of unique identification MSC, or the NRI that is distributed by CN.
This method also comprises: described purpose MSC is carried at position requests with self Temporary Mobile Subscriber Identity TMSI and receives in the message, send to described purpose SGSN, described purpose SGSN is carried at the TMSI of the described purpose MSC that receives in the Routing Area Update reception message, sends to described portable terminal.
This method also comprises: purpose SGSN is carried at the packet TMSI P-TMSI of self in the Routing Area Update reception message simultaneously, sends to portable terminal.
The method that load heavily distributes described in the steps A is: the RAN node to the load information and the state information that self send, is selected purpose SGSN and purpose MSC according to existing load allocating principle according to the CN node.
Described RAN node is radio network controller (RNC) or base station controller BSC.
As seen from the above technical solution, the present invention is after the RAN node receives Routing Area Update request message from MS, determine that according to the indication information that carries in this message this Routing Area Update is that needs are initiated position updating request through Gs interface to MSC by SGSN, then the RAN node is according to the loading condition of current C N node, select purpose SGSN and purpose MSC, purpose MSC sign is carried at sends to purpose SGSN in the Routing Area Update request message afterwards; Purpose SGSN sends location update request message to the corresponding purpose MSC of purpose MSC sign; After purpose MSC receives location update request message, self TMSI is carried at the position to be upgraded to receive in the message and sends to purpose SGSN, purpose SGSN is with the TMSI of the purpose MSC that receives, the P-TMSI of the TMSI of the purpose MSC that perhaps receives and purpose SGSN self is carried at Routing Area Update and receives in the message, sends to UE.
The RAN node that this method is stipulated in agreement has carried out load to MSC and has heavily distributed, and the purpose MSC sign of the purpose MSC that will select at the RAN node sends to purpose SGSN, purpose SGSN can send to location update request message the MSC of current selection, has guaranteed the dynamic equilibrium of MSC load.In addition, this method is at the LCDN node of agreement regulation, and promptly the RAN node carries out load to MSC and heavily distributes, and has guaranteed the unification of load control decision node, and decision-making mechanism has been become simple.
Description of drawings
Fig. 1 is that prior art exists under the situation of Gs interface, and associating RA/LA upgrades the flow chart of handling;
Fig. 2 is that the present invention exists under the situation of Gs interface, and associating RA/LA upgrades the flow chart of handling;
Fig. 3 is an embodiment of the invention flow chart.
Embodiment
Core concept of the present invention is: initiate associating RA/LA when portable terminal to wireless access network node and upgrade processing procedure, and exist under the situation of Gs interface, the present invention carries out load to SGSN and MSC simultaneously at the wireless access network node of agreement regulation and heavily distributes, selected the MSC of present load situation the best, guarantee the dynamic equilibrium of MSC load, also guaranteed the unification of load control decision node simultaneously.
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing preferred embodiment that develops simultaneously, the present invention is described in more detail.
Fig. 2 is that the present invention exists under the situation of Gs interface, and associating RA/LA upgrades the flow chart of handling, and specifically may further comprise the steps:
Step 200～step 201:RAN node receives the Routing Area Update request message from MS, and according to the loading condition of CN node, carries out load and heavily distribute, and selects purpose SGSN and purpose MSC.
In this step, it is prior art that the RAN node is selected purpose SGSN, no longer repeats here.The selection whether the RAN node carries out purpose MSC has following two kinds of methods:
(1) be indicated as being associating RA/LA renewal if the RAN node is determined the indication information that the Routing Area Update request message carries, then the RAN node is selected purpose MSC according to CN node load situation.
(2) if the RAN node determines that the indication information that the Routing Area Update request message carries includes joint route/position updating request (combined RA/LA update with IMSI attachrequested) that IMSI adheres to, or LA changes, illustrate that this Routing Area Update need initiate position updating request through Gs interface to MSC by SGSN, then the RAN node is selected purpose MSC according to CN node load situation.
Whether carry out the selection of purpose MSC if adopt above-mentioned (2) kind method decision, if do not have combined RA/LA update with IMSI attachrequested in the indication information that the Routing Area Update request message carries, perhaps LA does not change, illustrate that then this Routing Area Update belongs to the associating RA/LA update request that does not exist under the Gs interface, do not belong in the scope of this paper discussion, its specific implementation can no longer be described here referring to 3GPP TW23.060 agreement regulation.
In this step, load and the state information of RAN node by carrying in the load information notification message, obtain the loading condition of CN node, and SGSN or MSC are carried out described in heavy allocation process of load and the prior art CN node being carried out load heavily distribute, select the method for appropriate C N node in full accord, no longer repeat here.
Step 202:RAN node sends to purpose SGSN with purpose MSC sign and the Routing Area Update request of selecting.
In this step, purpose MSC sign is a unique symbol that is used to identify MSC, such as can being the fixing MSC ID that in network design, distributes to the unique identification MSC of MSC, or the NRI that distributes by CN etc.
Generally, the Routing Area Update request sends by the Routing Area Update request message; Purpose MSC sign can be carried in the Routing Area Update request message and send, and also can adopt a message that is specifically designed to transmission purpose MSC sign to send, such as sending the heavy allocation identification message of MSC.When purpose MSC sign is carried in the Routing Area Update request message, can in this Routing Area Update request message, increase the heavy allocation identification field of a MSC newly, be used for storage purpose MSC sign; Also can utilize in the existing route district update inquiry information existing reserved field to carry the MSC sign.
Step 203: purpose SGSN sends location update request message to the corresponding purpose MSC of purpose MSC sign that receives.
In this step, if in step 200～step 201, the RAN node adopts the decision of (2) kind method whether to carry out the selection of purpose MSC, and then purpose SGSN directly gets final product to purpose MSC transmission location update request message.
If in step 200～step 201, the RAN node adopts the decision of (1) kind method whether to carry out the selection of purpose MSC, then purpose SGSN judges according to above-mentioned (2) kind method whether this Routing Area Update request message is to initiate position updating request through Gs interface to MSC by SGSN, if then purpose SGSN gets final product to purpose MSC transmission location update request message; Otherwise, illustrate that this Routing Area Update belongs to the associating RA/LA update request that does not exist under the Gs interface, do not belong in the scope of this paper discussion, its specific implementation can no longer be described here referring to 3GPP TW23.060 agreement regulation.
The position that step 204～step 205: purpose MSC will carry self TMSI is upgraded and is received message and send to purpose SGSN, and purpose SGSN is carried at Routing Area Update with the TMSI of the purpose MSC that receives and receives in the message and send to UE.
Step 105～step 106 is in full accord in realization of this step and the prior art, no longer repeats here.
Exist from the invention described above under the situation of Gs interface, associating RA/LA upgrades the method for handling, importantly, in the RAN node, simultaneously SGSN and MSC are carried out load and heavily distribute, select suitable SGSN and MSC respectively as purpose SGSN and purpose MSC, the RAN node passes through message simultaneously, the purpose MSC sign of selecting is passed to purpose SGSN, and purpose SGSN only needs the sign according to purpose MSC, the position requests updating message is sent to purpose MSC get final product.The inventive method has guaranteed the dynamic equilibrium of MSC load, has also guaranteed the unification of load control decision node simultaneously.
Specifically describe implementation method of the present invention below in conjunction with an embodiment.Fig. 3 is an embodiment of the invention flow chart, supposes that here the RAN node is RNC, and the CN node pool comprises SGSN node pool and MSC node pool; And the indication information of Update the type field upgrades for being indicated as being associating RA/LA in the Routeing Area Update Request message, and also comprise combined RA/LA update with IMSI attachrequested, or LA changes, and promptly this Routing Area Update request message is to initiate the associating RA/LA update inquiry information that the position is upgraded through Gs interface to MSC by SGSN.Suppose in the present embodiment that simultaneously in load heavily distributed, SGSN did not change, MSC changes.The specific implementation step is as follows:
Step 300～step 301:RNC receives the Routeing Area Update Request message from MS, and according to the loading condition of node in the CN node pool, carries out load and heavily distribute, and selects purpose SGSN and purpose MSC.
In this step, it is prior art that RNC selects purpose SGSN, no longer repeats here.
After supposing that indication information in the Update the type field that RNC determines that Routeing Area Update Request message carries is indicated as being associating RA/LA and upgrades, RNC selects purpose MSC according to CN node load situation.
In this step, SGSN or MSC are carried out the heavy allocation process of load and described in the prior art CN node carried out load and heavily distribute, the method for selection appropriate C N node is in full accord, no longer repeats here.
Step 302:RNC is carried at the purpose MSC ID that selects in the Routeing Area UpdateRequest message, sends to purpose SGSN.
In this step, purpose MSC ID is the pre-assigned unique symbol that is used to identify MSC of CN.
In addition, the heavy allocation identification field of a newly-increased MSC is used for storage purpose MSC sign in Routeing Area Update R é quest message.
Step 303: purpose SGSN sends Location Update Request message to the corresponding purpose MSC of the purpose MSC ID that receives.
In this step, purpose SGSN determines that the indication information that the Routing Area Update request message carries includes joint route/position updating request (combined RA/LA update with IMSIattach requested) that IMSI adheres to, or LA changes, illustrate that this Routing Area Update need initiate position updating request through Gs interface to MSC by SGSN, then purpose SGSN selects purpose MSC according to CN node load situation.
The Location UpdateAccept message that step 304～step 305: purpose MSC will carry self TMSI sends to purpose SGSN, and purpose SGSN is carried at the TMSI of the purpose MSC that receives in the Routeing Area Update Accept message and sends to UE.
The realization of this step and the step 105～step 106 of prior art are in full accord, no longer repeat here.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (10)
1. in joint route/position RA/LA upgrades, realize the method that load heavily distributes for one kind, it is characterized in that this method may further comprise the steps:
A. after Radio Access Network RAN node receives Routing Area Update message from portable terminal, carry out load according to the loading condition of core net CN node and heavily distribute, determine purpose Serving GPRS Support Node SGSN and purpose MSC;
The B.RAN node sends to purpose SGSN with the purpose MSC sign and the Routing Area Update request of determined purpose MSC correspondence, and purpose SGSN sends location update request message to purpose MSC.
2. method according to claim 1 is characterized in that, before steps A, this method also comprises: described RAN node determines that according to the indication information in the described Routing Area Update request the current associating RA/LA that is updated to upgrades.
3. method according to claim 2, it is characterized in that, before steps A, determine current being updated to after associating RA/LA upgrades, this method also comprises: described RAN node is determined joint route/position updating request that the current IMSI of being updated to adheres to according to the indication information in the described Routing Area Update request, or LA changes.
4. method according to claim 2 is characterized in that, in step B, described RAN node sends to purpose MSC sign after the purpose SGSN, and purpose SGSN is before purpose MSC sends location update request message, and this method also comprises:
Purpose SGSN determines joint route/position updating request that the current IMSI of being updated to adheres to according to the indication information in the described Routing Area Update request that receives, or LA changes.
5. method according to claim 1 is characterized in that: in step B, the method for described transmission purpose MSC sign is:
Described purpose MSC sign is carried in the new field of Routing Area Update request message and sends;
Or described purpose MSC sign is carried in the Routing Area Update request message sends in the existing reserved field;
Or described purpose MSC sign is carried on to be specifically designed in the message that sends purpose MSC sign sends.
6. according to each described method of claim 1 to 5, it is characterized in that: described MSC is designated the MSC ID of unique identification MSC, or the NRI that is distributed by CN.
7. method according to claim 1, it is characterized in that, this method also comprises: described purpose MSC is carried at position requests with self Temporary Mobile Subscriber Identity TMSI and receives in the message, send to described purpose SGSN, described purpose SGSN is carried at the TMSI of the described purpose MSC that receives in the Routing Area Update reception message, sends to described portable terminal.
8. method according to claim 7 is characterized in that, this method also comprises: purpose SGSN is carried at the packet TMSI P-TMSI of self in the Routing Area Update reception message simultaneously, sends to portable terminal.
9. method according to claim 1, it is characterized in that, the method that load heavily distributes described in the steps A is: the RAN node to the load information and the state information that self send, is selected purpose SGSN and purpose MSC according to existing load allocating principle according to the CN node.
10. method according to claim 1 is characterized in that: described RAN node is radio network controller (RNC) or base station controller BSC.
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| CN101374342B (en) * | 2007-08-20 | 2012-04-18 | 华为技术有限公司 | Method for removing adhesion of user equipment |
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| CN101374342B (en) * | 2007-08-20 | 2012-04-18 | 华为技术有限公司 | Method for removing adhesion of user equipment |
| CN102685879B (en) * | 2007-08-20 | 2015-03-25 | 华为技术有限公司 | Unregistering method of user equipment |
| CN101150753B (en) * | 2007-10-29 | 2010-10-27 | 华为技术有限公司 | A load adjustment method and base station controller |
| WO2010145388A1 (en) * | 2009-09-30 | 2010-12-23 | 中兴通讯股份有限公司 | Rerouting method and radio network controller |
| CN102143476A (en) * | 2010-11-19 | 2011-08-03 | 华为技术有限公司 | Gs or SGs interface message processing method and Gs or SGs interface message processing device |
| WO2011150791A1 (en) * | 2010-11-19 | 2011-12-08 | 华为技术有限公司 | Method, apparatus and system for data synchronization |
| CN102143476B (en) * | 2010-11-19 | 2013-11-06 | 华为技术有限公司 | Gs or SGs interface message processing method and Gs or SGs interface message processing device |
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| CN100396114C (en) | 2008-06-18 |
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