CN100407856C - Method for preventing from transmitting accessing message spanning wireless network controller by Iur interface - Google Patents
Method for preventing from transmitting accessing message spanning wireless network controller by Iur interface Download PDFInfo
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- CN100407856C CN100407856C CN2004100738784A CN200410073878A CN100407856C CN 100407856 C CN100407856 C CN 100407856C CN 2004100738784 A CN2004100738784 A CN 2004100738784A CN 200410073878 A CN200410073878 A CN 200410073878A CN 100407856 C CN100407856 C CN 100407856C
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Abstract
The present invention discloses a method for preventing an Iur port from transferring paging messages across a wireless network controller. UE originates a subzone updating process after a PCH state reaches TRNC; TRNC adds contents of subzone updating request messages to RANAP messages which is sent to CN, and the CN transfers the contents of the messages to SRNC; after parsing, SRNC can trigger a relocation process to be completed, and then organizes and adds the contents of relocation instruction messages to the RANAP messages which can be transferred to TRNC, wherein TRNC can complete a reconfiguration process after parsing; the subzone updating request messages and the relocation instruction messages can be added to an RRC Container of the original RANAP messages or a structure of new RANAP messages. The present invention relocates when subzones are updated, and SRNC of UE can be switched to TRNC consequently, so that the generation of the paging messages across RNC can be avoided, and the problem of paging across RNC without Iur port is solved.
Description
Technical field
The present invention relates to the third generation mobile system, relate in particular to the paging method of this system.
Background technology
TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, the TD SDMA access) there are being a lot of identical points in system and WCDMA (Wide Code Division MultipleAccess, the broadband S-CDMA inserts) system aspect the agreement of following.But the Iur mouth is not quite similar in the effect that two kind of 3 generation mobile communication standard risen.
In WCDMA, in the time of switching the soft handover principle of priority, certain UE is had multi wireless links and its communication simultaneously, wherein also can there be the Radio Link of Iur-crossing port.So we can think that the Iur mouth is indispensable to WCDMA.But this interface situation concerning TD-SCDMA is just different.
Concerning TD-SCDMA, only support the mode of direct-cut operation now, the flow process of direct-cut operation is: be the newly-built wireless links of UE earlier, notify UE to use new Radio Link to carry out communication then; After UE forwards the enterprising row communication of new Radio Link to, original Radio Link is deleted.That is to say at any time have only a wireless links and UE carrying out communication.When direct-cut operation is when striding RNC (radio network controller), we can use direct-cut operation to follow the mode of reorientation to solve the continuity problem of communication fully, and after not needing Iur-crossing port to set up Radio Link, allow UE move on the Radio Link of this Iur-crossing port.Because concerning TD-SCDMA, both actual effects are the same (for the users), and in the Radio Link subsequent treatment of Iur-crossing port, will cause some related procedure again, make RNC complicated aspect processing.
From above discussion, we can think that the Radio Link of setting up Iur-crossing port is indispensable to WCDMA, but concerning TD-SCDMA then being can be unwanted, even can think: after removing the Iur mouth, with reducing the processing complexity of RNC, make that the efficient resource on the RNC obtains better utilization.So in order to reduce the difficulty that the TD-SCDMA whole system is realized, improve overall system efficiency simultaneously, can consider not realize striding the Radio Link foundation of Iur fully.If not realizing the Radio Link of striding Iur sets up, the meaning that the Iur mouth exists greatly is just no longer valid, from this angle, RNSAP (Radio Network SubsystemApplication Part, the Radio Network Subsystem Application Part) agreement of removing the Iur mouth in TD-SCDMA is feasible.
If remove the Iur mouth, is will produce a new problem: how the beep-page message of Iur-crossing port realized? because according to existing communications protocol, UE (portable terminal) is at PCH (Paging Channel, paging channel) after state enters another RNC, CN (core net) may initiate the paging to UE, is divided into following two kinds of situations:
First kind of situation is the paging that initiate in the CS territory: when paging is initiated in the CS of CN (circuit switching) territory, CN be to UE all RNC of the resident band of position send beep-page messages, promptly the TRNC (target radio network controller) at the SRNC of UE (service wireless network controller) and the present place of UE can receive this beep-page message.After TRNC receives beep-page message, can in paging channel, send a class beep-page message to whole sub-district, after UE receives this beep-page message, state according to self is judged as follows: UE is in the PCH state, U-RNTI (the UtranRadio Network Temporary Identity that does not comprise this UE in the beep-page message of receiving, the Utran Radio Network Temporary Identifier), then UE does not handle this beep-page message but directly this message is abandoned.
After SRNC receives the next beep-page message of CN, when the Iur mouth exists, send to the TRNC side by the Iur mouth after this beep-page message added U-RNTI, form beep-page message paging UE by TRNC, after UE receives beep-page message, judge that UE is in the PCH state and the beep-page message received in comprise U-RNTI, then initiate the cell update flow process of this beep-page message of response.
Second kind of situation is PS (message switching) territory when having data to transmit: SRNC can send the requirement of paging to TRNC by the Iur mouth, mails to UE after forming beep-page message by TRNC.
Any situation described above all needs the support of Iur mouth.If there is not the Iur mouth, this flow process can't realize how handling this situation has been exactly a problem in need of immediate treatment.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method of avoiding passing by the Iur oral instructions beep-page message of spanning across wireless network controller, can avoid the appearance of the beep-page message of Iur-crossing port.
In order to solve the problems of the technologies described above, the invention provides a kind of method of avoiding passing the beep-page message of spanning across wireless network controller by the Iur oral instructions, may further comprise the steps:
(a) portable terminal arrives the sub-district that target radio network controller is administered at front access state, initiates the cell update flow process;
(b) after target radio network controller is received the cell update message of portable terminal, judging oneself is not the service wireless network controller of this portable terminal, in the structure of Radio Access Network application protocol message, add the content of cell update request message, mail to core net by the Iu mouth;
(c) core net mails to the content of described cell update request message the service wireless network controller of described portable terminal according to target radio network controller sign in the message;
(d) described service wireless network controller is resolved the content of receiving the cell update request message in the message, direct then trigger re-positioning flow process;
(e) carry out the reorientation flow process, described target radio network controller is finished resource allocation and is notified described service wireless network controller;
(f) described service wireless network controller joins the content of the reorientation Indication message of tissue in the structure of Radio Access Network application protocol message, sends core net by the Iu mouth;
(g) core net is according to target radio network controller sign in the message, and the content of described reorientation Indication message is mail to described target radio network controller;
(h) described target radio network controller is resolved receiving the reorientation Indication message content in the message, sends reconfiguration message to described portable terminal, and reshuffling successfully, the back discharges the resource that described service wireless network controller distributes for this portable terminal.
Further, said method can have following characteristics: the content of described cell update request message and reorientation Indication message is in the Radio Resource control container that joins in original Radio Access Network application protocol message and labels.
Further, said method can have following characteristics: original Radio Access Network application protocol message is a RELOCATION REQUEST message, the content of cell update request message and reorientation Indication message all joins in the Radio Resource control container of RELOCATION REQUEST message, after core net was received this RELOCATION REQUEST message, the message content of organizing the reorientation incoming message to add was delivered to the purpose radio network controller; The content of perhaps described cell update request message and reorientation Indication message all joins in the Radio Resource control container of reorientation response message, after core net was received this reorientation response message, the message content of organizing the reorientation command messages to add was delivered to the purpose radio network controller.
Further, said method can have following characteristics: the cell update request message that described Radio Resource control container comprises or the content of reorientation Indication message are labelled by a parameter value, after described target and service wireless network controller are received the Radio Access Network application protocol message, discern the content that whether has comprised cell update request message or reorientation Indication message in its structure according to this parameter value in its structure, resolve then.
Further, said method can have following characteristics: the content of described cell update request message and reorientation Indication message is to join in the structure of newly-increased Radio Access Network application protocol message, also includes the sign of service wireless network controller and target radio network controller in this newly-increased message structure.
Further, said method can have following characteristics: the content of described cell update request message and reorientation Indication message is to join in the same newly-increased Radio Access Network application protocol message structure also to label with a parameter, after described target and service wireless network controller are received this newly-increased message, discern the content that whether has comprised cell update request message and reorientation Indication message in its structure according to this parameter in its structure, resolve then; Perhaps, the content of described cell update request message and reorientation Indication message is to join respectively in the structure of a newly-increased Radio Access Network application protocol message.
Further, said method can have following characteristics: the content of described cell update request message and reorientation Indication message is that the structure organization by former radio resource control message joins in the structure of Radio Access Network application protocol message.
Further, said method can have following characteristics: described step (e) further can be divided into following steps:
(e1) described service wireless network controller initiates to relocate request-message to core net;
(e2) after core net is received described RELOCATION REQUEST message, organize the reorientation incoming message to mail to described target radio network controller;
(e3) after described target radio network controller is received the reorientation incoming message, finish Iu mouth and Iub mouth ground resource and Iub mouth allocation of radio resources, send the reorientation response message to described core net;
(e4) after core net is received the reorientation response message of described target radio network controller transmission, organize the reorientation command messages to send to described service wireless network controller.
Because the present invention has carried out reorientation at UE at the cell update that the PCH state enters the scope initiation of TRNC, makes the SRNC of this UE be switched to TRNC.After handling like this, the paging no matter initiate in the CS territory, still the UTRAN paging that has data demand to initiate owing to PS, the capital is after TRNC receives, be converted into that UE can correctly accept and beep-page message and handle, thereby avoided striding the generation of RNC paging, effectively solved the problem of striding the RNC paging.
Description of drawings
Fig. 1 is after revising RRC Container data structure, the flow chart of cell update trigger re-positioning.
After Fig. 2 is newly-increased RANAP message and data structure, the flow chart of cell update trigger re-positioning.
Embodiment
UE enters another RNC at PCH (forward direction access) state, when being the scope of TRNC, can initiate the flow process of cell update, the reason of initiating cell update has following two kinds: first kind is periodic cell update, be the sub-district at the UE present place of access side of regularly accusing, insert side and only need reply.Second kind is that the UE side will be given a notice that inserts side need initiate uplink service the time, and request inserts side and distributes corresponding resource, is referred to as the cell update that transfer of data requires in the literary composition.
In the existing procedure, the TRNC side is initiated cell update, is to send the cell update request message by the Iur mouth to SRNC, because the present invention does not have the Iur mouth, need change by the Iu mouth and transmit.In addition, for fear of SRNC and TRNC different and need Iur-crossing port to transmit beep-page message during paging, the flow process of the present invention's equal trigger re-positioning in the existing cell update by the Iu cause for gossip is changed into the RNC that UE serves, and Iu mouth that will be relevant with UE is moved to TRNC from original SRNC.
Existing reorientation flow process realizes by following steps: SRNC sends RELOCATION REQUEST message to CN, CN receives that the back sends the reorientation incoming message to TRNC, after TRNC is the UE Resources allocation, send the reorientation response message to CN, CN receives that it is that the resource that UE distributes is told SRNC with TRNC that the back sends the reorientation command messages to SRNC.All message of this process are all existing by the Iu cause for gossip, needn't change.
After above-mentioned flow performing was intact, SRNC also needed to send a reorientation Indication message (Relocation commit) to TRNC, tells TRNC to send reconfiguration message to UE.This reorientation Indication message is in existing protocol, and is also existing by the Iur cause for gossip.
In the present invention, cell update request and reorientation indication all needs to transmit by the Iu mouth.Below will with two embodiment describe in detail the present invention by the existing cell update of Iu cause for gossip after, the whole flow process of SRNC trigger re-positioning.
First embodiment
Existing message in the RANAP (Radio Access Network application protocol) is still continued to use in communication between present embodiment RNC and CN.In order to realize the cell update by the Iu mouth, and don't change existing RANAP, present embodiment all is placed on the content of cell update request message and reorientation Indication message to transmitting in the sightless code stream of CN.RRC Container (the Radio Resource control container) block code that comes to this stream in the existing RANAP, in RELOCATION REQUEST message, reorientation response message and the reorientation incoming message of RANAP the structure of a unit being arranged all is RRCContainer.
Present embodiment is expanded the RRC Container structure in the RELOCATION REQUEST message, and the content of cell update request message and reorientation Indication message is added wherein, mails to CN by the Iu mouth.Defined some structures among original RRC Container, distinguished by the value of the parametric t in this message structure between each RRC Container structure, supposed that present span is 1～N, then present embodiment need increase to give a definition:
During t=N+1, comprise the content of cell update request message in the RRC Container structure, the cell update solicited message and the TRNC that include the UE transmission are the resource that UE distributes, as: C-RNIT (Cell Radio Network Temporary Identifier/Identity, Cell-RNTI) and U-RNTI etc.
During t=N+2, comprise the content of reorientation Indication message in the RRC Container structure, be used for triggering TRNC reshuffling UE.
The content of the rrc layer message among the above-mentioned RRC Container adopts the structure of former rrc layer message to organize, but the present invention does not limit concrete organizational form.
The flow process of present embodiment cell update may further comprise the steps as shown in Figure 1:
S01, UE sends the cell update request message to TRNC;
S02, TRNC receive the cell update request message that UE sends, and judge the SRNC that this RNC is not this UE, send RELOCATION REQUEST message to CN, comprise the content of cell update request message in the RRC Container structure of this message, parametric t=N+1;
S03, after CN receives the RELOCATION REQUEST message of TRNC transmission, according to the sign of the purpose RNC in the message structure, organize the reorientation incoming message to send to SRNC, what comprise in the RRCContainer structure of this reorientation incoming message is the content of cell update request message;
S04, after the SRNC side is received the reorientation incoming message, RRC Container structure in this message is analyzed, what learn that it comprises according to parametric t=N+1 is the content of cell update request message, resolve the back and initiate to relocate request-message to CN, the flow process of trigger re-positioning, present embodiment reorientation flow process is the same with former protocols having, at this moment RRC Container structure is the original structure in the agreement;
S05, CN organize reorientation incoming message (SRNC Relocation Request) to mail to TRNC after receiving the RELOCATION REQUEST message of SRNC transmission;
S06, after TRNC receives the reorientation incoming message, RRC Container structure in this message is analyzed, after resolving this message by original mode, finish the allocation of radio resources of Iu mouth and Iub mouth ground resource and Iub mouth, send reorientation response message (Relocation Request Ack) to CN then;
S07, the CN side organizes reorientation command messages (Relocation Command) to send to SRNC after receiving the reorientation response message of TRNC transmission;
S08, SRNC receive the reorientation command messages that CN sends, and handle the back and send RELOCATION REQUEST message to CN, comprise the content of reorientation Indication message in the RRC Container structure of this message, parametric t=N+2;
After S09, CN receive the RELOCATION REQUEST message of SRNC transmission,, organize the reorientation incoming message to mail to TRNC according to the sign of the purpose RNC in the message structure;
S10, after TRNC receives the reorientation incoming message, analyze the RRC Container structure in this message, what learn that it comprises according to parametric t=N+2 is the content of reorientation Indication message, it is resolved the back send reconfiguration message (can be that RB reshuffles, transmission channel is reshuffled or physical channel is reshuffled) to UE;
S11, UE receive the reconfiguration message that TRNC sends, and reshuffle success message to the TRNC transmission after configuration is finished;
After S12, TRNC receive and reshuffle success message, send reorientation to CN and finish message;
After S13, CN receive that message is finished in reorientation, send Iu mouth release message to SRNC, SRNC discharges UE all resources on SRNC, finishes.
The advantage of first embodiment is: all used original message structure and handling process at Uu mouth and Iu mouth, modification is limited in the RRC structure, reduced the modification to the existing protocol framework as best one can.Mode, the cell update request message that will use in the creationary adding cell updating course and the content of reorientation Indication message of revising the RRC Container structure in the re-positioning request have been adopted.On the basis that does not change RANAP, realized that cell update follows the reorientation flow process, changed RNC for the UE service, original SRNC has been moved on the TRNC, thereby avoided the transmission of follow-up beep-page message Iur-crossing port.
This embodiment can have other conversion on the basis of such scheme, for example, can change into the RRC Container structure of reorientation response message is expanded, the content that adds cell update request and reorientation Indication message, after core net is received this reorientation response message, organize the reorientation command messages that the message content that adds is delivered to the purpose radio network controller.But perhaps adopt other to comprise the RANAP message of transparent transmission information.
In addition, also can adopt RRCContainer structure in RELOCATION REQUEST message and the reorientation response message to finish the transmission of a cell update message content simultaneously, for example, the content of cell update request message is added among the RRC Container of RELOCATION REQUEST message, and the content of reorientation Indication message is joined among the RRC Container of reorientation response message, also can realize renewal process of the present invention.
Second embodiment:
Former in order to pass by the defeated message of Iur oral instructions by the Iu oral instructions, present embodiment has adopted a newly-increased RANAP message (being designated hereinafter simply as newly-increased message), and defined the message structure of this newly-increased message, the sign that in newly-increased message structure, contains purpose RNC and source RNC, in order to utilize the content of this same transmission of messages cell update message and reorientation Indication message, in newly-increased message structure, also defined a parametric t and distinguished, be defined as follows:
During t=1, comprise the content of cell update request message in the newly-increased message structure, comprise that cell update solicited message and TRNC that UE sends are the information such as resource that UE distributes.
During t=2, comprise the content of reorientation Indication message in the newly-increased message structure, be used for triggering TRNC reshuffling UE.
The structure of the former rrc layer message of the preferable employing of content of above-mentioned cell update request message and reorientation Indication message is organized, and can also expand newly-increased message on this basis.Simultaneously, also need define the processing mode that CN receives the RANAP message that this is newly-increased, present embodiment does not process the rrc layer message structure that comprises in its structure, is directly delivered to purpose RNC.
The flow process of present embodiment periodic cell update may further comprise the steps as shown in Figure 2:
S21, UE sends the cell update request message to TRNC;
S22, TRNC receive the cell update request message that UE sends, and judge the SRNC that this RNC is not this UE, send newly-increased message to CN, purpose RNC in its message structure is designated the SRNC sign of this UE, and the parametric t in the structure=1 comprises the content of cell update request message;
After S23, CN receive the newly-increased message of TRNC transmission, directly this message is sent to SRNC according to purpose RNC sign, the content of cell update request message just has been passed to SRNC like this;
S24, the SRNC side learns that according to the parametric t in the message structure=1 it comprises the content of cell update request message after receiving newly-increased message, sends RELOCATION REQUEST message to CN, the flow process of trigger re-positioning (the same with former agreement);
S25 after CN receives RELOCATION REQUEST message, organizes the reorientation incoming message to send to TRNC;
After S26, TRNC receive the reorientation incoming message, finish the allocation of radio resources of Iu mouth and Iub mouth ground resource and Iub mouth, send the reorientation response message to CN;
S27, the CN side organizes the reorientation command messages to send to SRNC after receiving the reorientation response message of TRNC transmission;
S28, SRNC send newly-increased message to CN after receiving the reorientation command messages that CN sends, and parametric t in the message structure=2 comprise the content of reorientation Indication message, and purpose RNC is designated the sign of TRNC;
After S29, CN receive the newly-increased message of SRNC transmission, directly this message is mail to TRNC according to purpose RNC sign;
S30, TRNC learn that according to the parametric t in the message structure=2 it comprises the content of reorientation Indication message after receiving newly-increased message, resolve the back and send reconfiguration message to UE;
S31, UE receive the reconfiguration message that TRNC sends, and reshuffle success message to the TRNC transmission after configuration is finished;
After S32, TRNC receive and reshuffle success message, send reorientation to CN respectively and finish message;
After S33, CN receive that message is finished in reorientation, send Iu mouth release message to SRNC, SRNC discharges UE all resources on SRNC.
The advantage of second embodiment is: adding for RANAP on the basis of new information, use new interface to finish cell update and realize the switching of SRNC, and this has just enlarged the range of definition to Iu mouth agreement on original basis, do not influence original flow process and structure, can compatible function, flow process and parameter in the past.Because what adopt is the mode of function expansion, so can on function and exploitation version, accomplish to seamlessly transit.
Second embodiment also can have other conversion on the basis of such scheme, for example, such scheme is to have adopted a newly-increased message to transmit the message of a plurality of rrc layers, by the identification of parameter value being distinguished the structure of its message that comprises, also can adopt a plurality of newly-increased message, the structure that comprises a RRC message in the structure of each newly-increased message need not operation parameter t like this and distinguishes.
In addition, the rrc layer message content that is comprised in the newly-increased message structure of embodiment is visible to CN, but also can a RRC Container unit be set, the message of coming the transparent transmission rrc layer with this structure in newly-increased message.CN can directly transmit by such scheme newly-increased message, also can handle, but must guarantee that wherein the useful content of rrc layer message is passed to purpose RNC.
Claims (8)
1. method of avoiding passing by the Iur oral instructions beep-page message of spanning across wireless network controller may further comprise the steps:
(a) portable terminal arrives the sub-district that target radio network controller is administered at front access state, initiates the cell update flow process;
(b) after target radio network controller is received the cell update message of portable terminal, judging oneself is not the service wireless network controller of this portable terminal, in the structure of Radio Access Network application protocol message, add the content of cell update request message, mail to core net by the Iu mouth;
(c) core net mails to the content of described cell update request message the service wireless network controller of described portable terminal according to target radio network controller sign in the message;
(d) described service wireless network controller is resolved the content of receiving the cell update request message in the message, direct then trigger re-positioning flow process;
(e) carry out the reorientation flow process, described target radio network controller is finished resource allocation and is notified described service wireless network controller;
(f) described service wireless network controller joins the content of the reorientation Indication message of tissue in the structure of Radio Access Network application protocol message, sends core net by the Iu mouth;
(g) core net is according to target radio network controller sign in the message, and the content of described reorientation Indication message is mail to described target radio network controller;
(h) described target radio network controller is resolved receiving the reorientation Indication message content in the message, sends reconfiguration message to described portable terminal, and reshuffling successfully, the back discharges the resource that described service wireless network controller distributes for this portable terminal.
2. the method for claim 1 is characterized in that, the content of described cell update request message and reorientation Indication message is in the Radio Resource control container that joins in original Radio Access Network application protocol message and labels.
3. method as claimed in claim 2, it is characterized in that, original Radio Access Network application protocol message is a RELOCATION REQUEST message, the content of cell update request message and reorientation Indication message all joins in the Radio Resource control container of RELOCATION REQUEST message, after core net was received this RELOCATION REQUEST message, the message content of organizing the reorientation incoming message to add was delivered to the purpose radio network controller; The content of perhaps described cell update request message and reorientation Indication message all joins in the Radio Resource control container of reorientation response message, after core net was received this reorientation response message, the message content of organizing the reorientation command messages to add was delivered to target radio network controller.
4. method as claimed in claim 3, it is characterized in that, the cell update request message that described Radio Resource control container comprises or the content of reorientation Indication message are labelled by a parameter value, after described target and service wireless network controller are received the Radio Access Network application protocol message, discern the content that whether has comprised cell update request message or reorientation Indication message in its structure according to this parameter value in its structure, resolve then.
5. the method for claim 1, it is characterized in that, the content of described cell update request message and reorientation Indication message is to join in the structure of newly-increased Radio Access Network application protocol message, also includes the sign of service wireless network controller and target radio network controller in this newly-increased message structure.
6. method as claimed in claim 5, it is characterized in that, the content of described cell update request message and reorientation Indication message is to join in the same newly-increased Radio Access Network application protocol message structure also to label with a parameter, after described target and service wireless network controller are received this newly-increased message, discern the content that whether has comprised cell update request message and reorientation Indication message in its structure according to this parameter in its structure, resolve then; Perhaps, the content of described cell update request message and reorientation Indication message is to join respectively in the structure of a newly-increased Radio Access Network application protocol message.
7. the method for claim 1 is characterized in that, the content of described cell update request message and reorientation Indication message is that the structure organization by former radio resource control message joins in the structure of Radio Access Network application protocol message.
8. the method for claim 1 is characterized in that, described step (e) further can be divided into following steps:
(e1) described service wireless network controller initiates to relocate request-message to core net;
(e2) after core net is received described RELOCATION REQUEST message, organize the reorientation incoming message to mail to described target radio network controller;
(e3) after described target radio network controller is received the reorientation incoming message, finish Iu mouth and Iub mouth ground resource and Iub mouth allocation of radio resources, send the reorientation response message to described core net;
(e4) after core net is received the reorientation response message of described target radio network controller transmission, organize the reorientation command messages to send to described service wireless network controller.
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| CN100455134C (en) * | 2006-04-21 | 2009-01-21 | 华为技术有限公司 | Method and device for arranging channel |
| CN101018354B (en) * | 2006-08-18 | 2010-10-27 | 华为技术有限公司 | A control method and device for update of the service cell |
| CN101287285B (en) * | 2007-04-10 | 2011-12-21 | 华为技术有限公司 | Method, system and device for calling establishing and triggering in circuit domain |
| CN101426248B (en) * | 2007-10-30 | 2010-06-23 | 华为技术有限公司 | Method and system for supporting circuit domain service in high-speed data access evolution network |
| CN101938801B (en) * | 2009-06-30 | 2013-08-07 | 中兴通讯股份有限公司 | Method and system for realizing relocation between networks |
| KR101574188B1 (en) * | 2009-09-30 | 2015-12-03 | 삼성전자주식회사 | Method and system for changing asn of ms in communication system |
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