CN101426244A - Method, system and apparatus for conversation loss prevention in static migrating - Google Patents
Method, system and apparatus for conversation loss prevention in static migrating Download PDFInfo
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Abstract
The present invention provides a method for preventing user disconnecting in static migration, wherein the method in the executing course of static migration comprises the following procedures: receiving radio link control RLC sequence number information transmitted by a service radio network controller SRNC corresponding with user equipment UE by a drifting radio network controller DRNC; and processing the protocol data unit PDU sequence transmitted by UE by DRNC with the RLC sequence number information. The invention also provides a system for preventing user disconnecting in static migration and a radio network controller RNC. The application of the invention can settle the problem of user disconnecting when PDU sequence is transmitted by UE to DRNC and increase the user experience in the period when the RLC sequence number information sustained by UE and DRNC is not consistent in the static migration.
Description
Technical field
(Universal Mobile TelecommunicationSystem, UMTS) field particularly prevent the mthods, systems and devices of conversation loss in the UMTS static migrating to the present invention relates to Universal Mobile Telecommunications System.
Background technology
Present UMTS network configuration as shown in Figure 1, mainly comprise core network (Core Network, CN), UMTS Terrestrial radio access network (UMTS Terrestrial Radio Access Network, UTRAN) and user terminal (User Equipment, UE).Wherein, CN comprise grouping (PacketSwitched, PS) ((Radio Network Controller RNC) links to each other by Iu interface and radio network controller for Circuit Switched, CS) territory for territory and circuit; Comprise RNC and base station (Node B) among the UTRAN, RNC links to each other by Iub interface with Node B, and different RNC links to each other by the Iur interface; RNC and Node B composition wireless network control system (Radio Network System, RNS); UE links to each other with Node B by the Uu interface, and the Uu interface is also referred to as air interface.
Wave point among the UTRAN can be divided into physical layer, data link layer and network layer from protocol layer, physical layer is called layer 1 (L1), and data link layer is called layer 2 (L2), and network layer is called layer 3 (L3).Comprise Radio Link control (Radio Link Controller among the above-mentioned L2, RLC) sublayer, mainly finish functions such as transfer of data, flow control and encryption and decryption, at control plane, RLC provides Signaling Radio Bearer (Signal Radio Bear, SRB), at user plane, RLC provide professional radio bearer (Traffic Radio Bear, TRB), above-mentioned SRB and TRB belong to radio bearer (RadioBear, part RB).(Radio Resource Control, RRC) sublayer is used to dispose RLC, and wireless resource allocation is controlled to comprise Radio Resource control among the above-mentioned L3.
According to the division of above-mentioned Radio interface protocols layer, comprise the RLC module of corresponding L2 and the RRC module of corresponding L3 among the RNC, UE also comprises the RLC module, above-mentioned RLC module is finished the function of corresponding rlc layer, and the RRC module is finished the function of corresponding rrc layer.RLC module among the UE, send control signaling by the RLC module of SRB in RNC, or by the RLC module transmission service message of TRB in RNC, above-mentioned control signaling or service message all show as protocol Data Unit (Protocol Data Unit, PDU) sequence.Each PDU sequence that UE sends is all to there being the L2RLCPDU sequence number, and the RLC module among the RNC has the sequence number audit function, and whether what check the UE transmission is the PDU of correct transmission, and returns the RLC status report of notice reception condition to UE.In above-mentioned data transmission and processing, it is synchronous that UE and RNC need carry out the RLC sequence number information, promptly safeguards consistent RLC sequence number information, and RNC just might carry out the sequence number inspection according to consistent RLC sequence number information like this.
There is the RNC migration among the 3GPP agreement regulation UMTS, refer to that the RNC for the UE service is converted to the process of another RNC from current RNC, whether participate in according to UE in the transition process, RNC among UMTS migration is divided into relevant (UE involved) uncorrelated with UE (UE not involved) two classes of UE, wherein the incoherent RNC migration of UE is called static migrating again, to be called Serving RNC (Serving RNC for the RNC of UE service simultaneously, SRNC), Target RNC in the transition process is called Drift Radio Network Controller (Drift RNC, DRNC), after migration is finished, DRNC will become the new service SRNC of UE.
Fig. 2 is the process schematic diagram of static migrating among the prior art UMTS.The left side is depicted as the preceding wireless chaining status of RNC migration among Fig. 2, does not promptly have Radio Link between UE and the SRNC, is triggered to the migration of DRNC by SRNC.The right side is depicted as the wireless chaining status after RNC moves among Fig. 2, and Old SRNC wherein is the preceding SRNC of migration, and SRNC is the DRNC before moving.As can be seen, in whole static migrating process, the Uu interface of UE and UTRAN is not connected not variation, i.e. this transition process of not perception of UE.
Fig. 3 shows the flow process of finishing static migrating shown in Figure 2, and this flow process may further comprise the steps:
1.～2.SRNC sends migration request to CN; CN sends migration request to DRNC, and DRNC moves preparation;
3.～4.DRNC responds to the request of CN remigration; CN sends the migration order to SRNC, and SRNC moves preparation;
5.SRNC send the migration trigger command to DRNC;
6.DRNC after receiving the migration trigger command of SRNC transmission, notice CN detects migration and triggers, and carries out and move; In this step, DRNC carries out migration, is SRB and the TRB between DRNC foundation and the UE, is used for UE and sends the PDU sequence, and the RLC sequence number initial value of above-mentioned newly-built SRB and TRB correspondence is 0;
7.～and 8.DRNC is to UE transmission UTRAN mobility information, and UE returns above-mentioned UTRAN mobility information to DRNC and confirms; In these two steps, DRNC sends the UTRAN mobility information to UE, it is the RLC sequence number initial value of newly-built SRB and TRB correspondence among the notice UE current DRNC, and UE returns affirmation to DRNC, can think UE according to the notice of DRNC, the RLC sequence number information and the RLC sequence number information among the DRNC of self maintained is synchronous; Before the 8.th step, all can be called the implementation of static migrating, behind the 8.th EOS, can think that static migrating finishes.
Finish message 9.DRNC send migration to CN;
10.～and 11.CN sends release command to SRNC, and notice SRNC discharges Iu and connects; SRNC discharges the Iu User Plane bearing resource, and returns Release complete to CN.
Before above-mentioned the 7.th step, UE consistent on the RLC of self maintained sequence number information and SRNC, but with on the DRNC and inconsistent because not perception of UE static migrating process, therefore also can send the PDU sequence to RNC one side according to the flow sequence under self normal condition.For example supposed that before whole static migrating process begins it is 3 PDU sequence that UE correctly transmits Sequence Number to SRNC, and receives the RLC status report that SRNC returns, inform that UE correctly sends; In the static migrating implementation, it is 4 PDU sequence that UE will order transmits Sequence Number to DRNC, not but because not synchronous on sequence number information that DRNC safeguards and the UE, DRNC receives that above-mentioned sequence number is after 4 the PDU sequence, can judge the incorrect transmission of the PDU sequence UE of sequence number before 4, return the RLC status report to UE, inform the incorrect transmission of the PDU sequence of UE sequence number before 4, but in fact UE had received the correct RLC status report that sends of the PDU sequence of sequence number before 4 that the preceding SRNC of migration sends, so UE can't carry out next step operation this moment.Because if resend the PDU sequence of sequence number before 4, will with the indication contradiction of the RLC status report of aforementioned correct transmission of having received, if but the PDU sequence before 4 of not transmitting Sequence Number, again with the indication contradiction of the RLC status report that newly receives, at this moment the RLC module of UE inside can with and DRNC between SRB and TRB reset, cause conversation loss.
Summary of the invention
The embodiment of the invention provides the method that prevents conversation loss in a kind of static migrating, this method can solve UE and DRNC safeguard in the static migrating implementation RLC sequence number information inconsistent during, the problem of conversation loss improved user experience when UE sent the PDU sequence to DRNC.
The embodiment of the invention provides a kind of RNC, uses this RNC, can solve UE and DRNC safeguard in the static migrating implementation RLC sequence number information inconsistent during, the problem of conversation loss improved user experience when UE sent the PDU sequence to DRNC.
The embodiment of the invention provides the system that prevents conversation loss in a kind of static migrating, this system can solve UE and DRNC safeguard in the static migrating implementation RLC sequence number information inconsistent during, the problem of conversation loss improved user experience when UE sent the PDU sequence to DRNC.
The technical scheme of the embodiment of the invention is achieved in that
Prevent the method for conversation loss in a kind of static migrating, this method comprises in the static migrating implementation:
Floating radio network controller DRNC, the Radio Link that receives the service wireless network controller SRNC transmission of user terminal UE correspondence is controlled the RLC sequence number information;
DRNC uses described RLC sequence number information, handles the protocol Data Unit PDU sequence that UE sends.
Prevent the system of conversation loss in a kind of static migrating, this system comprises:
The SRNC of UE correspondence is used for sending the RLC sequence number information by core network CN to DRNC;
DRNC is used for the RLC sequence number information in the described SRNC transmission of static migrating implementation use, handles the PDU sequence that UE sends;
CN is used to connect mutual between described SRNC and the described DRNC.
A kind of radio network controller (RNC), this RNC comprises:
The RRC module is used for receiving the RLC sequence number information that the SRNC of static migrating implementation sends, and described RLC sequence number information is disposed RLC module to described RNC;
The RLC module is used in the static migrating implementation, uses the RLC sequence number information of described RRC block configuration, handles the PDU sequence of the UE transmission that receives.
As seen, prevent the mthods, systems and devices of conversation loss in the embodiment of the invention static migrating, by SRNC the RLC sequence number information is offered DRNC, make DRNC in the static migrating implementation, safeguard identical RLC sequence number information with UE, use this RLC sequence number information that the PDU sequence that UE sends is correctly handled, thereby the situation of non-correct transmission can not take place the correct PDU sequence that sends of UE is defined as, avoid UE occur can't executable operations situation, thereby solve the problem of conversation loss, improve user experience.
Description of drawings
Fig. 1 is a UMTS network structure of the prior art;
Fig. 2 is the process schematic diagram of static migrating among the UMTS in the prior art;
Fig. 3 is for realizing the flow chart of static migrating process shown in Figure 2;
Fig. 4 is for preventing the method flow diagram of conversation loss in the embodiment of the invention static migrating;
Fig. 5 is for preventing the method better embodiment flow chart of conversation loss in the embodiment of the invention static migrating;
Fig. 6 is for preventing the system configuration schematic diagram of conversation loss in the embodiment of the invention static migrating.
Embodiment
For the purpose and the advantage that make the embodiment of the invention is clearer, the embodiment of the invention is described in further detail below in conjunction with accompanying drawing.
At first, introduce the method that prevents conversation loss in the embodiment of the invention static migrating, Fig. 4 shows the flow process of this method, and this flow process may further comprise the steps in the static migrating implementation:
Step 401:DRNC receives the RLC sequence number information of the SRNC transmission of UE correspondence.
In this step, SRNC can be by the message that sends to DRNC, and for example migration request message is carried the RLC sequence number information.
Step 402:DRNC uses described RLC sequence number information, handles the PDU sequence that UE sends.
In this step, DRNC can be finished by two layers the processing of the PDU sequence that UE sends, the rrc layer of DRNC wherein, and the RLC sequence number information that can use SRNC to send is configured the rlc layer of DRNC; And the rlc layer of DRNC, the RLC sequence number information of using above-mentioned rrc layer to dispose is handled the PDU sequence that UE sends.The function of above-mentioned rlc layer and rrc layer can be finished by RLC module and RRC module corresponding among the DRNC.
Prevent the method for conversation loss in the embodiment of the invention static migrating, by SRNC the RLC sequence number information is offered DRNC, make DRNC in the static migrating implementation, safeguard identical RLC sequence number information with UE, use this RLC sequence number information that the PDU sequence that UE sends is correctly handled, thereby the situation of non-correct transmission can not take place the correct PDU sequence that sends of UE is defined as, avoid UE occur can't executable operations situation, thereby solved the problem of conversation loss, improved user experience.
In embodiments of the present invention, because SRNC sends to DRNC with the RLC sequence number, receive at DRNC and will have two kinds of sequence number information on the DRNC, wherein a kind of is the sequence number information synchronous with UE that SRNC sends, another kind is that DRNC sets up RB ', for example set up SRB ' and TRB ' afterwards, the initial value of the sequence number of corresponding SRB ' that sets up and TRB '.When DRNC sends the UTRAN mobility information to UE, and receive after the affirmation message that UE returns, DRNC confirms that the sequence number information on the UE is synchronous with the initial value of SRB ' that self sets up and TRB ' this moment, at this moment, DRNC can use the SRB ' that self sets up and the initial value of TRB ' to begin to handle the PDU sequence that UE sends, and before this, the sequence number information that DRNC all uses SRNC to provide is handled the PDU sequence that UE sends.
If consider a kind of special circumstances, when DRNC after UE sends the UTRAN mobility information, but also do not receive before the affirmation that UE returns, DRNC has received the PDU sequence that UE sends again, if the sequence number of this PDU sequence just in time is 0, DRNC can't determine that this PDU sequence is that UE sends according to former sequence number information this moment, still according to sending synchronously with self sequence number information, therefore DRNC can return the incorrect RLC status report that sends to UE, if the UE really of this PDU sequence sends according to former sequence number information, with may cause again UE will and DRNC between SRB ' and TRB ' reset, cause conversation loss.
Based on above-mentioned special circumstances, the embodiment of the invention can also be taked a kind of preferred implementation, promptly in the static migrating implementation, DRNC handles after the PDU sequence of UE transmission, do not return the RLC status report to UE, and after static migrating is finished, recover again to return the RLC status report, thereby guarantee the conversation loss that in the static migrating process, causes to greatest extent to UE.
Below in conjunction with concrete static migrating implementing procedure, introduce the preferred embodiment that prevents the method for conversation loss in the embodiment of the invention static migrating, Fig. 5 shows the flow process of this preferred embodiment, and this flow process comprises:
Step 501:SRNC sends migration request message by CN to DRNC, carries the RLC sequence number information in the RRC container of this migration request message.
In this step, because SRNC is the RNC that serves for UE before the migration beginning, so the RLC sequence number information of safeguarding among the RLC sequence number information that provides of SRNC and the UE is consistent.
Above-mentioned RLC sequence number information can comprise: the radio bearer RB of the rlc layer of SRNC distinguishes corresponding sequence number information, as a kind of embodiment, in this better embodiment, the RLC sequence number information that SRNC provides comprises that SRB1～SRB4 and the TRB among the above-mentioned RB distinguishes corresponding sequence number information, the parameter of this RLC sequence number information as shown in Table 1, the implication of each parameter is those skilled in the art's a common practise in the table one, and the parameter shown in the his-and-hers watches one is expanded according to actual needs.Be understandable that above-mentioned RLC sequence number information comprises that all SRB and the TRB of the rlc layer of SRNC distinguish corresponding sequence number information, the just a kind of embodiment that adopts in this better embodiment.In actual applications, if UE only uses SRB to send the PDU sequence, or only use TRB to send the PDU sequence, above-mentioned sequence number information also can include only the SRB of rlc layer of SRNC or the sequence number information of TRB correspondence.
| Cell/group name | Whether necessary | Whether a plurality of | Type and value | Describe |
| RLC sequence number title | Essential | According to the decision of Radio Link carrying number | Integer (0..4095) | The RLC sequence number. be used for the radio bearer of RLC transfer of data |
Table one
The rrc layer of step 502:DRNC, the RLC sequence number information of using SRNC to send is to the rlc layer increase configuration of DRNC.
In this step, the RLC sequence number information that SRNC provides in the corresponding step 501 at the rrc layer of DRNC, disposes SRB1 '～SRB4 ' and TRB ' to the rlc layer of DRNC with the RLC sequence number information.Through after this step, two kinds of sequence number information are arranged among the DRNC.
The rlc layer of step 503:DRNC passes through SRB1 '～SRB4 ' and TRB ' receives the PDU sequence that UE sends, RRC measurement report for example, judge the RLC sequence number of the PDU sequence that receives, whether more than or equal to the RLC sequence information of rrc layer configuration or do not equal 0, if, continue execution in step 504, otherwise abandon the PDU sequence that UE sends, directly execution in step 505.
In this step, the decision operation at the rlc layer of DRNC can be exemplified below.The rlc layer of DRNC for example passes through SRB1 ' and receives the PDU sequence that UE sends, and can be divided into following situation to the processing of this PDU sequence:
The first, the RLC sequence number of this PDU sequence thinks that more than or equal to the RLC sequence number information that SRB1 ' disposed this PDU sequence sends for correct.If equal, illustrate that then this PDU sequence that receives is the sequence that UE sends according to the sequence number information order, with the PDU sequence storage of this reception; If the RLC sequence number of the current PDU sequence of receiving is greater than the RLC sequence number information of configuration, because DRNC supports ranking function, therefore can be with the PDU sequence storage that should receive, if the follow-up serial number bit that receives sorted before the RLC of this PDU sequence sequence number.
The second, the sequence number of this PDU sequence equals 0, thinks that this PDU sequence sends for correct.This is a kind of special situation, and sequence number initial value corresponding when promptly the sequence number of this PDU sequence is just in time set up SRB1 ' with DRNC is identical, and this moment, DRNC was also with this sequence storage.
The rlc layer of step 504:DRNC, the PDU sequence that UE is sent are formed the rrc layer that sends to DRNC behind the SDU.
In this step,, a plurality of PDU sequences can also be formed SDU and send to the rrc layer of DRNC if the PDU sequence size that UE sends is littler to the SDU that rrc layer provides than the rlc layer of DRNC.
The rlc layer of step 505:DRNC after described static migrating is finished, recovers to return the RLC status report to UE.
In this step, the sign that static migrating is finished is that the rrc layer of DRNC sends the UTRAN mobility information to UE, and the affirmation of receiving UE.
Above-mentioned steps 502～step 504 has been described DRNC and how in the static migrating implementation PDU sequence of UE transmission have been handled, can be called is the data transmission and processing process of special circumstances, in the data transmission and processing process of these special circumstances, the RLC sequence number information of using SRNC to send is handled the PDU sequence that UE sends, and in the static migrating implementation, DRNC handles after the PDU sequence of UE transmission, does not return the RLC status report to UE.After static migrating is finished, RLC module among the DRNC finishes the data transmission and processing process of above-mentioned special circumstances, and recovery normal handling flow process, when this normal handling flow process begins, the initial value that DRNC and UE go up the sequence number information of safeguarding all is 0, be after normal flow begins, the RLC sequence number information of stopping using SRNC to send is handled the PDU sequence that UE sends, and use above-mentioned initial value is that 0 sequence number information is handled the PDU sequence that UE sends, and recovers again to return the RLC status report to UE after handling the PDU sequence that UE sends.
In this better embodiment, when SRNC transmits Sequence Number information to DRNC, used the message in the existing migration flow process, guaranteed compatibility with existing scheme; All SRB ' and the TRB ' that set up for DRNC increase the sequence number information that has disposed the SRNC transmission, make no matter UE sends the PDU sequence from which bar radio bearer, can prevent the generation of call drop; And in the static migrating implementation, DRNC does not return the RLC status report to UE, thereby has avoided in particular cases contingent call drop situation, has prevented the possibility of call drop to greatest extent.
Secondly, introduce the system that prevents conversation loss in the embodiment of the invention static migrating, Fig. 6 shows the structure of this system, comprises in this system:
The SRNC of UE correspondence is used for sending the RLC sequence number information by core network CN to DRNC.
DRNC is used for the RLC sequence number information in the described SRNC transmission of static migrating implementation use, handles the PDU sequence that UE sends.
CN is used to connect mutual between described SRNC and the described DRNC.
Prevent the system of conversation loss in the embodiment of the invention static migrating, by SRNC the RLC sequence number information is offered DRNC, make DRNC in the static migrating implementation, safeguard identical RLC sequence number information with UE, use this RLC sequence number information that the PDU sequence that UE sends is correctly handled, thereby the situation of non-correct transmission can not take place the correct PDU sequence that sends of UE is defined as, avoid UE occur can't executable operations situation, thereby solved the problem of conversation loss.
SRNC in the said system can comprise: a RLC module and a sending module.
The one RLC module is used to provide the RB of self to distinguish corresponding RLC sequence number information.
Sending module is used for RLC sequence number information that a described RLC module is provided, is carried in the migration request message, sends to described DRNC by CN.
DRNC in the said system can comprise: RRC module and the 2nd RLC module.
The RRC module is used for receiving the RLC sequence number information that static migrating implementation SRNC sends, and described RLC sequence number information is disposed to described the 2nd RLC module.
The 2nd RLC module is used in the static migrating implementation, uses the RLC sequence number information of described RRC block configuration, handles the PDU sequence that receives.
Above-mentioned the 2nd RLC module can comprise: radio bearer unit, determination processing unit and status report unit.
The radio bearer unit is used for receiving the PDU sequence that UE sends by radio bearer RB ', and described RRC module disposes described RLC sequence number information to described RB '.
The determination processing unit, whether the RLC sequence number of the PDU sequence that is used for determining that the radio bearer unit receives is more than or equal to the RLC sequence number information of described RRC block configuration or equal 0, if, become service data unit SDU sequence to send to described RRC module described PDU sequence set, otherwise, the described PDU sequence that receives is abandoned;
The status report unit is used for after described static migrating is finished, and recovers to send the RLC status report to UE.
After the system that the embodiment of the invention is provided further divided, in the static migrating implementation, DRNC did not return the RLC status report to UE, thereby has considered in particular cases contingent call drop situation, has prevented the possibility of call drop to greatest extent.
At last, introducing the device that prevents conversation loss in the embodiment of the invention static migrating, is a kind of RNC, and this RNC comprises:
The RRC module is used for receiving the RLC sequence number information that the SRNC of static migrating implementation sends, and described RLC sequence number information is disposed RLC module to described RNC.
The RLC module is used in the static migrating implementation, uses the RLC sequence number information of described RRC block configuration, handles the PDU sequence of the UE transmission that receives.
The RNC that the embodiment of the invention provides, when carrying out the DRNC function, receive the RLC sequence number information that its corresponding SRNC sends by the RRC module, and the RLC module is given in configuration, use the RLC sequence number information of RRC block configuration correctly to handle the PDU sequence that UE sends by the RLC module, thereby the situation of non-correct transmission can not take place the correct PDU sequence that sends of UE is defined as, avoid UE occur can't executable operations situation, thereby solved the problem of conversation loss.
RLC module among the RNC that the invention described above embodiment provides can comprise: radio bearer unit, determination processing unit and status report unit.
The radio bearer unit is used for receiving the PDU sequence that UE sends by radio bearer RB ', and described RRC module disposes described RLC sequence number information to described RB '.
The determination processing unit, whether the RLC sequence number of the PDU sequence that is used for determining that described radio bearer unit receives is more than or equal to the RLC sequence number information of described RRC block configuration or equal 0, if, become service data unit SDU sequence to send to described RRC module described PDU sequence set, otherwise, the described PDU sequence that receives is abandoned.
The status report unit is used for after described static migrating is finished, and recovers to send the RLC status report to UE.
During as the SRNC in the static migrating implementation, this RNC also comprises: service RLC module and sending module at RNC that the embodiment of the invention provides.
Service RLC module, radio bearer RB distinguishes corresponding RLC sequence number information when being used to provide as SRNC.
Sending module is used for RLC sequence number information that described service RLC module is provided, is carried in the migration request message, sends to DRNC by CN, and described DRNC is and this corresponding D RNC of RNC institute as SRNC.
In sum, more than be preferred embodiment of the present invention only, be not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1, prevent the method for conversation loss in a kind of static migrating, it is characterized in that in the static migrating implementation, this method comprises:
Floating radio network controller DRNC, the Radio Link that receives the service wireless network controller SRNC transmission of user terminal UE correspondence is controlled the RLC sequence number information;
DRNC uses described RLC sequence number information, handles the protocol Data Unit PDU sequence that UE sends.
2, the method for claim 1 is characterized in that, the RLC sequence number information that described DRNC receives the SRNC transmission of UE correspondence comprises:
Described DRNC receives the migration request message that described SRNC sends, and carries described RLC sequence number information in the radio resource control RRC container of described migration request message, and described RLC sequence number information is the pairing RLC sequence number information of rlc layer radio bearer RB.
3, method as claimed in claim 2 is characterized in that, the PDU sequence that described use RLC sequence number information is handled the UE transmission comprises:
The rrc layer of DRNC, the RLC sequence number information that described SRNC is sent disposes the RB ' to the rlc layer of DRNC;
The rlc layer of DRNC uses the RLC sequence number information of the rrc layer configuration of described DRNC, handles the PDU sequence that UE sends.
4, method as claimed in claim 3 is characterized in that, the PDU sequence that the rlc layer of described DRNC is handled the UE transmission comprises:
The rlc layer of DRNC receives the PDU sequence that UE sends by described RB ', and whether the sequence number of determining this PDU sequence is more than or equal to the RLC sequence number information of the rrc layer configuration of described DRNC or equal 0; If become service data unit SDU sequence to send to the rrc layer of described DRNC described PDU sequence set; Otherwise, the described PDU sequence that receives is abandoned.
5, method as claimed in claim 3 is characterized in that, after described static migrating was finished, this method further comprised:
The rlc layer of DRNC recovers to return the RLC status report to UE.
6, as each described method of claim 3 to 5, it is characterized in that described RB comprises: Signaling Radio Bearer SRB and/or professional radio bearer TRB, described RB ' comprising: SRB ' and/or TRB '.
7, prevent the system of conversation loss in a kind of static migrating, it is characterized in that this system comprises:
The SRNC of UE correspondence is used for sending the RLC sequence number information by core network CN to DRNC;
DRNC is used for the RLC sequence number information in the described SRNC transmission of static migrating implementation use, handles the PDU sequence that UE sends;
CN is used to connect mutual between described SRNC and the described DRNC.
8, system as claimed in claim 7 is characterized in that, described SRNC comprises:
The one RLC module is used to provide the RB of self to distinguish corresponding RLC sequence number information;
Sending module is used for RLC sequence number information that a described RLC module is provided, is carried in the migration request message, sends to described DRNC by CN.
9, system as claimed in claim 7 is characterized in that, described DRNC comprises:
The RRC module is used for receiving the RLC sequence number information that static migrating implementation SRNC sends, and described RLC sequence number information is disposed to the 2nd RLC module;
The 2nd RLC module is used in the static migrating implementation, uses the RLC sequence number information of described RRC block configuration, handles the PDU sequence that receives.
10, system as claimed in claim 9 is characterized in that, described the 2nd RLC module comprises:
The radio bearer unit is used for receiving the PDU sequence that UE sends by radio bearer RB ', and described RRC module disposes described RLC sequence number information to described RB ';
The determination processing unit, whether the RLC sequence number of the PDU sequence that is used for determining that described radio bearer unit receives is more than or equal to the RLC sequence number information of described RRC block configuration or equal 0, if, become service data unit SDU sequence to send to described RRC module described PDU sequence set, otherwise, the described PDU sequence that receives is abandoned;
The status report unit is used for after described static migrating is finished, and recovers to send the RLC status report to UE.
11, a kind of radio network controller (RNC) is characterized in that, this RNC comprises:
The RRC module is used for receiving the RLC sequence number information that the SRNC of static migrating implementation sends, and described RLC sequence number information is disposed RLC module to described RNC;
The RLC module is used in the static migrating implementation, uses the RLC sequence number information of described RRC block configuration, handles the PDU sequence of the UE transmission that receives.
12, RNC as claimed in claim 11 is characterized in that, described RLC module comprises:
The radio bearer unit is used for receiving the PDU sequence that UE sends by radio bearer RB ', and described RRC module disposes described RLC sequence number information to described RB ';
The determination processing unit, whether the RLC sequence number of the PDU sequence that is used for determining that described radio bearer unit receives is more than or equal to the RLC sequence number information of described RRC block configuration or equal 0, if, become service data unit SDU sequence to send to described RRC module described PDU sequence set, otherwise, the described PDU sequence that receives is abandoned;
The status report unit is used for after described static migrating is finished, and recovers to send the RLC status report to UE.
13, RNC as claimed in claim 11 is characterized in that, during as the SRNC in the static migrating implementation, described RNC also comprises:
Service RLC module, the RB when being used to provide as SRNC distinguishes corresponding RLC sequence number information;
Sending module is used for RLC sequence number information that described service RLC module is provided, is carried in the migration request message, sends to DRNC by CN, and described DRNC is and this corresponding D RNC of RNC institute as SRNC.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101643535A CN101426244B (en) | 2007-10-30 | 2007-10-30 | Method, system and apparatus for conversation loss prevention in static migrating |
| PCT/CN2008/072858 WO2009059531A1 (en) | 2007-10-30 | 2008-10-28 | Method, system and device for reducing user's drop-calls during the static drift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101643535A CN101426244B (en) | 2007-10-30 | 2007-10-30 | Method, system and apparatus for conversation loss prevention in static migrating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101426244A true CN101426244A (en) | 2009-05-06 |
| CN101426244B CN101426244B (en) | 2010-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101643535A Expired - Fee Related CN101426244B (en) | 2007-10-30 | 2007-10-30 | Method, system and apparatus for conversation loss prevention in static migrating |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101426244B (en) |
| WO (1) | WO2009059531A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101998506A (en) * | 2009-08-14 | 2011-03-30 | 中兴通讯股份有限公司 | Method and system for acquiring control information by radio network controller |
| CN102932860A (en) * | 2012-10-31 | 2013-02-13 | 华为技术有限公司 | Method and device for preventing radio link control (RLC) reset |
| CN103369560A (en) * | 2012-03-29 | 2013-10-23 | 中兴通讯股份有限公司 | Method for obtaining GSM system abnormal call-drop data and system thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6725040B2 (en) * | 2001-07-09 | 2004-04-20 | Asustek Computer Inc. | Lossless SRNS relocation procedure in a wireless communications system |
| KR100765123B1 (en) * | 2002-02-16 | 2007-10-11 | 엘지전자 주식회사 | Method for relocating SRNS |
| KR100883063B1 (en) * | 2002-02-16 | 2009-02-10 | 엘지전자 주식회사 | Method for relocating context |
| CN101018392B (en) * | 2006-02-06 | 2010-06-16 | 中兴通讯股份有限公司 | A method for reducing the data interruption time in the SRNS repositioning process |
-
2007
- 2007-10-30 CN CN2007101643535A patent/CN101426244B/en not_active Expired - Fee Related
-
2008
- 2008-10-28 WO PCT/CN2008/072858 patent/WO2009059531A1/en active Application Filing
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101998506A (en) * | 2009-08-14 | 2011-03-30 | 中兴通讯股份有限公司 | Method and system for acquiring control information by radio network controller |
| CN101998506B (en) * | 2009-08-14 | 2015-04-01 | 中兴通讯股份有限公司 | Method and system for acquiring control information by radio network controller |
| CN103369560A (en) * | 2012-03-29 | 2013-10-23 | 中兴通讯股份有限公司 | Method for obtaining GSM system abnormal call-drop data and system thereof |
| CN103369560B (en) * | 2012-03-29 | 2018-01-26 | 中兴通讯股份有限公司 | A kind of method and system for obtaining gsm system exception call drop data |
| CN102932860A (en) * | 2012-10-31 | 2013-02-13 | 华为技术有限公司 | Method and device for preventing radio link control (RLC) reset |
| WO2014067273A1 (en) * | 2012-10-31 | 2014-05-08 | 华为技术有限公司 | Method and device for avoiding radio link control (rlc) reset |
| CN102932860B (en) * | 2012-10-31 | 2016-06-22 | 华为技术有限公司 | A kind of avoid the wireless spread-spectrum technology RLC method and apparatus resetted |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101426244B (en) | 2010-12-15 |
| WO2009059531A1 (en) | 2009-05-14 |
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