CN109429288A - The processing method of E-RAB establishment process and the concurrent scene of across base station handoff procedure - Google Patents
The processing method of E-RAB establishment process and the concurrent scene of across base station handoff procedure Download PDFInfo
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The embodiment of the present invention discloses the processing method of E-RAB establishment process and the concurrent scene of across base station handoff procedure, comprising: after source base station triggers across base station handoff procedure in E-RAB establishment process, receives the X2 switching request acknowledgement message that target BS generates；Source base station is set in the RRC connection reconfiguration that X2 switching request acknowledgement message carries increases instruction information in message, obtain target RRC connection reconfiguration and set message；Indicate that information is used to indicate the mark of DRB to be released；Target RRC connection reconfiguration is set message and is sent to target UE by source base station.The embodiment of the present invention is set by the RRC connection reconfiguration carried in X2 switching request acknowledgement message increases instruction information to indicate that UE needs the DRB that discharges in message, when so that re-starting E-RAB establishment process after the completion of switching across base station, UE will not feed back RRC connection re-establishment request message to target BS, to complete E-RAB foundation, it can be seen that, guarantee that E-RAB is successfully established after the completion of switching while triggering across base station switching in time, user's perception and KPI index can be promoted.
Description
Technical field
The present invention relates to fields of communication technology, and in particular to a kind of E-RAB establishment process and across base station handoff procedure are concurrent
Scene processing method and base station.
Background technique
During LTE (Long Term Evolution, long term evolution) network operation, it is understood that there may be E-RAB
(Evolved Radio Access Bearer, the radio access bearer of evolution) establishment process and across base station handoff procedure are concurrent
Scene: base station carry out E-RAB foundation during, base station send for E-RAB establish RRC connection reconfiguration set
(RRCConnectionReconfiguration) completion is set after message and receiving RRC connection reconfiguration
(RRCConnectionReconfigurationComplete) before message, if base station has received for switching across base station
Measurement report, can trigger across base station handoff procedure, generate E-RAB establishment process and the concurrent scene of across base station handoff procedure.And
When across the base station handoff procedure of triggering the signal of the corresponding user equipment of measurement report can be prevented to be deteriorated caused by user's disconnection.
In the prior art, E-RAB establishment process and the concurrent scene of across base station handoff procedure, base station terminate E-RAB and establish
Process and then across the base station handoff procedure of execution are waited and are received because if not terminating E-RAB establishment process but caching measurement report
RRC connection reconfiguration sets completion message, and the DRB between base station and user equipment, (Data Radio Bearer, data are wirelessly held
Carry) be successfully established after, it is also necessary to start delay switching timer wait a uplink direct-sending message (active dedicated
EPS bearer context accept) it is held for establishing EPS (Evolved Packet System, the grouping system of evolution)
Carry, further delay across base station switching opportunity, cause due to switch not in time caused by RRC connection reconfiguration set unsuccessfully, E-
RAB establishes the problem of unsuccessfully KPI (Key Performance Indicator, KPI Key Performance Indicator) being waited to deteriorate.Therefore, such as Fig. 1
Shown, the processing strategie of prior art E-RAB establishment process and the concurrent scene of across base station handoff procedure is priority processing across base
It stands switching, terminates E-RAB establishment process, detailed process is described as follows step 101 to 117, and source base station involved in process is to hold
The base station of row E-RAB establishment process and triggering across base station handoff procedure, target BS are to be responsible for cutting in across base station handoff procedure
The base station that changing-over is received.
101, MME (Mobility Management Entity, mobility management entity) sends E-RAB to source base station and builds
It is vertical to request (S1 E-RAB Setup Request) message, the mark (E-RAB-ID) of E-RAB is carried in the message, it is assumed that E-
RAB-ID is 7.E-RAB establishes the transmission of request message namely the beginning of E-RAB establishment process.
102, source base station sends RRC connection reconfiguration to UE (User Equipment, user equipment) and sets message, in the message
Carrying E-RAB-ID is 7 corresponding relevant informations, and the relevant information includes: the EPS-Bearer-ID (block core of evolution
The mark of system bearing) and DRB-ID (mark of Data Radio Bearer), wherein EPS-Bearer-ID 7, DRB-ID are
6。
103, source base station carries the RRC connection reconfiguration that E-RAB-ID is 7 corresponding relevant informations and sets completion and disappear receiving
Before breath, the measurement report that UE is reported is received.
104, the measurement report that source base station is reported with reference to UE switches over judgement according to preset handoff algorithms, if judgement
Switching then sends E-RAB to MME and establishes response (S1 E-RAB Setup Response) message, and it is former to carry switching in the message
Because of value (cause), switch if it is X2, then cause=" X2 Handover triggered "；Switch if it is S1, then
Cause=" S1 intra system Handover triggered ".MME receives cause=" X2 Handover
After the E-RAB of triggered " establishes response message, (i.e. after step 113), sent to target BS after X2 handover success
E-RAB establishes request message, and (i.e. step 115), the E-RAB-ID which carries are 7.
105, source base station sends X2 switching request (X2 Handover Request) message to MME, does not carry in the message
E-RAB-ID is 7 corresponding relevant informations.
106, MME forwards X2 switching request message to target BS, and not carrying E-RAB-ID in the message is 7 corresponding phases
Close information.
107, target BS sends X2 Handover Request Acknowledge (X2 Handover Request Acknowledge) to MME
Message, the TargeteNBtoSource-eNBTransparentContainer field in the X2 switching request acknowledgement message are taken
The RRC connection reconfiguration for executing switching that band issues UE sets message, and (i.e. RRC connection reconfiguration sets message carrying
MobilityControlInfo information, mobilityControlInfo indicate switching command), which sets message
In do not have carry E-RAB-ID be 7 relevant information.
108, MME forwards X2 switching request acknowledgement message to source base station.
109, after source base station receives X2 switching request acknowledgement message, the RRC for being used to execute switching that will be carried in the message
Connection reconfiguration sets message and is sent to UE.
110, source base station sends X2 Sn Staus Transfer message to target BS, the concrete function of the message referring to
Agreement description, this embodiment is not repeated.
111, after UE executes switching, completion is set to target BS feedback RRC connection reconfiguration
(RRCConnectionReconfigurationComplete) message, the corresponding cell of UE access target BS.
112, target BS is to MME transmitting path switching request (S1 Path Swich Request) message.
113, MME is to target BS feedback path Handover Request Acknowledge (S1 Path Swich Request
Acknowledge) message.
114, target BS sends UE context release (X2 UE Context Release) message to former base station.
After step 114, complete across base station handoff procedure namely step 105 to 114 be across base station handoff procedure.
115, after completing across base station handoff procedure, MME to target BS re-initiate E-RAB establishment process namely MME to
Target BS sends E-RAB and establishes request (S1 ERAB Setup Request) message, and the E-RAB-ID carried in the message is
7。
116, target BS sends RRC connection reconfiguration to UE and sets the business that message establishes E-RAB-ID=7, specifically, mesh
Mark base station sends RRC connection reconfiguration to UE and sets message, and it is 7 corresponding relevant informations that E-RAB-ID is carried in the message, described
Relevant information includes: that EPS-Bearer-ID is 7, DRB-ID 5.
117, since UE still has corresponding DRB information (the i.e. DRB-ID of business of the E-RAB=ID=7 of source base station foundation
For 6), therefore UE is to target BS feedback RRC connection re-establishment request
(RRCConnectionReestablishmentRequest) message carries in the message and re-establishes reason
(ReestablishmentCause) are as follows: reconfiguration failure (reconfigurationFailure).
To step 117, E-RAB establishes failure, and KPI index is deteriorated, thus need it is a kind of for E-RAB establishment process and across
The processing strategie of the concurrent scene of base station handoff procedure.
At present for the processing strategie of the concurrent scene of E-RAB establishment process and across base station handoff procedure are as follows: in step 107
In, TargeteNBtoSource- of the target BS into the X2 switching request acknowledgement message that MME is sent
The RRC connection reconfiguration that eNBTransparentContainer field carries, which is set, only retains the DRB's being successfully established in message
It identifies and carries fullConfig (full configuration) information.Then RRC connection reconfiguration can be set in message and do not occur by UE in step 109
The mark of DRB (i.e. redundancy DRB) is actively deleted, and is specifically shown in 36.331 agreement 5.3.5.8 chapters and sections of 3GPP TS, therefore in step
Would not occur in 117 the case where RRC connection re-establishment (namely UE will not to target BS feed back RRC connection re-establishment request
Message) because the mark of redundancy DRB is deleted by UE.
As it can be seen that at present for the processing strategie of the concurrent scene of E-RAB establishment process and across base station handoff procedure, if not
Using fullConfig mode, it will lead to UE in signaling plane and RRC connection re-establishment occur.But if using the side fullConfig
Formula, the service surface data packet reset (reset or reset) that will lead on the other DRB of UE fall, and packet loss index is caused to be promoted and used
Family perception is deteriorated, and packet loss associated description is referring to 36.300 agreement 10.1.2.1.2 chapters and sections " Data loss may of 3GPP TS
Happen ", and the protocol edition compatible of the processing strategie is problematic.
Therefore, a kind of processing strategie of scene concurrent for E-RAB establishment process and across base station handoff procedure is needed, is solved
Certainly since Non-Access Stratum (Non-Access Stratum, NAS) EPS carries failed foundation, DRB carrying has been successfully established,
Signaling plane RRC link is caused to re-establish the problem of being deteriorated with the perception of user caused by service surface packet loss and KPI index.
Summary of the invention
In view of the above problems, the embodiment of the present invention proposes a kind of E-RAB establishment process for overcoming the above problem and across base
The processing method of the concurrent scene of handoff procedure of standing and base station.
In a first aspect, the embodiment of the present invention proposes a kind of E-RAB establishment process and the concurrent scene of across base station handoff procedure
Processing method, comprising:
After source base station triggers across base station handoff procedure in E-RAB establishment process, the X2 switching that target BS generates is received
Request confirmation message；The source base station is base station of the triggering across base station handoff procedure, and the target BS is to switch across base station
It is responsible for the base station that switching is received in journey；
The source base station is set in the RRC connection reconfiguration that the X2 switching request acknowledgement message carries increases instruction letter in message
Breath, obtains target RRC connection reconfiguration and sets message；Wherein, the instruction information is used to indicate the mark of DRB to be released；
The target RRC connection reconfiguration is set message and is sent to target UE by the source base station, so that the target UE discharges
DRB is discharged based on the instruction information；The target UE is the corresponding UE of across the base station handoff procedure.
Optionally, the DRB to be released is corresponding for the EPS carrying established not successfully in the E-RAB establishment process
The DRB being successfully established.
Optionally, the source base station is set in message in the RRC connection reconfiguration that the X2 switching request acknowledgement message carries and is increased
Add instruction information, obtain target RRC connection reconfiguration and set message, comprising:
The source base station holds the target BS of the X2 switching request acknowledgement message to the RRC in source base station transparent vessel
Device carries out ASN.1 decoding, obtains the corresponding RRC connection reconfiguration of downlink dedicated control channel information and sets message；
The source base station increases son letter in the dedicated radio resources configuration information element that the RRC connection reconfiguration sets message
Element is ceased, the sub-information element is for carrying the instruction information.
Optionally, the target RRC connection reconfiguration is set message and is sent to target UE by the source base station, comprising:
The source base station sets message to the target RRC connection reconfiguration and carries out ASN.1 coding, forms RRC protocol data list
Member；
The RRC protocol Data Unit is sent to the target UE by the source base station.
Second aspect, the embodiment of the present invention also propose a kind of base station, comprising:
Receiving unit receives what target BS generated after triggering across base station handoff procedure in E-RAB establishment process
X2 switching request acknowledgement message；The target BS is the base station being responsible for switching in across base station handoff procedure and receiving；
Adding unit, the RRC connection reconfiguration for carrying in the X2 switching request acknowledgement message, which sets to increase in message, to be referred to
Show information, obtains target RRC connection reconfiguration and set message；Wherein, the instruction information is used to indicate the mark of DRB to be released；
Transmission unit is sent to target UE for the target RRC connection reconfiguration to be set message, so that the target UE is released
It puts and DRB is discharged based on the instruction information；The target UE is the corresponding UE of across the base station handoff procedure.
Optionally, the DRB to be released is corresponding for the EPS carrying established not successfully in the E-RAB establishment process
The DRB being successfully established.
Optionally, the adding unit, is specifically used for:
The target BS of the X2 switching request acknowledgement message is carried out to the RRC container in source base station transparent vessel
ASN.1 decoding, obtains the corresponding RRC connection reconfiguration of downlink dedicated control channel information and sets message；
Increase sub-information element in the dedicated radio resources configuration information element that the RRC connection reconfiguration sets message, it should
Sub-information element is for carrying the instruction information.
Optionally, the transmission unit, is specifically used for:
Message is set to the target RRC connection reconfiguration and carries out ASN.1 coding, forms RRC protocol Data Unit；
The RRC protocol Data Unit is sent to the target UE.
The third aspect, the embodiment of the present invention also propose a kind of base station, comprising: processor, memory, communication interface and total
Line；
Wherein, the processor, memory, communication interface complete mutual communication by the bus；
The communication interface is for the information transmission between external equipment；
The processor is used to call the program instruction in the memory, to execute the step of method as described in relation to the first aspect
Suddenly.
Fourth aspect, the embodiment of the present invention also propose a kind of non-transient storage media, the non-transient storage media storage
Program instruction, described program instruction are performed the step of realizing method as described in relation to the first aspect.
The processing method of E-RAB establishment process and the concurrent scene of across base station handoff procedure that the embodiment of the present invention proposes and
It is set in message and is increased by the RRC connection reconfiguration carried in X2 switching request acknowledgement message after triggering across base station handoff procedure in base station
Add instruction information to indicate that UE needs the DRB that discharges, so that re-starting E-RAB establishment process after the completion of switching across base station
When, UE will not feed back RRC connection re-establishment request message to target BS, to complete E-RAB foundation, it is seen then that touch in time
E-RAB is successfully established after the completion of guaranteeing switching while sending out across base station switching, can promote user's perception and KPI index.
Detailed description of the invention
Fig. 1 is the processing strategie process of E-RAB establishment process and the concurrent scene of across base station handoff procedure in background technique
Figure；
Fig. 2 is a kind of E-RAB establishment process for providing of first embodiment of the invention and the concurrent field of across base station handoff procedure
The processing method flow chart of scape；
Fig. 3 is a kind of base station block diagram that second embodiment of the invention provides；
Fig. 4 is a kind of architecture of base station schematic diagram that third embodiment of the invention provides.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention is explicitly described, it is clear that described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.
Based on 36.322 agreement of 3GPP TS, the signaling on the SRB1 (Signaling Radio Bearer 1) of LTE network is sequentially to pass
It hands over, the case where being submitted there is no random ordering.Therefore, message ratio use is set for establishing the RRC connection reconfiguration of EPS carrying and DRB carrying
Message is set in the RRC connection reconfiguration for executing switching and first reaches UE, if UE can not be received for establishing EPS carrying and DRB carrying
RRC connection reconfiguration set message or RRC connection reconfiguration that UE is received for establishing EPS carrying and DRB carrying sets message still
It executes RRC connection reconfiguration to set unsuccessfully, then UE can report RRC connection re-establishment request message without executing subsequent switching stream
Journey.
Based on 24.301 agreement of 3GPP TS, NAS layers of EPS carrying is identical, then when being established again, UE is automatically deleted
EPS carrying before.Therefore, it even if UE is carried there are not deleted EPS, is deleted without additional signaling process instruction UE
EPS carrying.
In the step 107 of Fig. 1,36.413 agreement 9.2.1.8 chapters and sections of 3GPP TS provide X2 switching request acknowledgement message
The letter that middle target BS is carried to source base station transparent vessel (TargeteNBtoSource-eNBTransparentContainer)
Breath is transmitted to source base station by target BS, and target BS is into the RRC Container (RRC container) in source base station transparent vessel
Carry switching command.
Based on 36.331 agreement 10.2.2 chapters and sections of 3GPP TS, the switching command carried in RRC Container is by source base
It stands and transparent passes to UE (This message is used to transfer the handover command
generated by the target eNB,which is transparently transferred by the source
RAN to the UE)。
Therefore, as shown in Fig. 2, the present embodiment discloses a kind of E-RAB establishment process and the concurrent field of across base station handoff procedure
The processing method of scape, the method may include following steps 201 to 203:
201, after source base station triggers across base station handoff procedure in E-RAB establishment process, the X2 that target BS generates is received
Handover Request Acknowledge (X2Handover Request Acknowledge) message；The source base station is that triggering switched across base station
The base station of journey, the target BS are the base station being responsible for switching in across base station handoff procedure and receiving.
202, the source base station is set to increase in message and be referred in the RRC connection reconfiguration that the X2 switching request acknowledgement message carries
Show information, obtains target RRC connection reconfiguration and set message；Wherein, the instruction information is used to indicate the mark of DRB to be released.
In the present embodiment, the DRB to be released is the EPS carrying pair established not successfully in the E-RAB establishment process
The DRB being successfully established answered.
In the present embodiment, source base station can first judge whether after receiving the X2 Handover Request Acknowledge that target BS generates
There are DRB to be released, and if it exists, thens follow the steps 202, otherwise, executes step 109 in Fig. 1.
203, the target RRC connection reconfiguration is set message and is sent to target UE by the source base station, so that the target UE
Release discharges DRB based on the instruction information；The target UE is the corresponding UE of across the base station handoff procedure.
As it can be seen that the processing method of E-RAB establishment process and the concurrent scene of across base station handoff procedure that the present embodiment proposes,
It is not necessary to modify the processes in Fig. 1, it is only necessary in Fig. 1 when step 108, execute step shown in Fig. 2.
As it can be seen that the processing method of E-RAB establishment process and the concurrent scene of across base station handoff procedure that the present embodiment proposes,
After triggering across base station handoff procedure, increase in message is set by the RRC connection reconfiguration carried in X2 switching request acknowledgement message and is referred to
Show information to indicate that UE needs the DRB that discharges, when so that re-starting E-RAB establishment process after the completion of switching across base station, UE
RRC connection re-establishment request message will not be fed back to target BS, to complete E-RAB foundation, it is seen then that the present embodiment proposed
Method can discharge redundancy DRB in time, avoid service disconnection caused by RRC connection re-establishment.
Further, the method that the present embodiment proposes avoids fullConfig mode from avoiding the influence of existing business
User's perception problems caused by high packet loss.
Further, the method that the present embodiment proposes, after the completion of guaranteeing switching while triggering across base station switching in time
E-RAB is successfully established, and improves handover success rate and E-RAB is created as power.
In a specific example, RRC that source base station described in step 202 is carried in the X2 switching request acknowledgement message
Connection reconfiguration, which is set, increases instruction information in message, obtain target RRC connection reconfiguration and set message, specifically include unshowned in Fig. 2
Following steps 2021 and 2022:
2021, the source base station is to the target BS of the X2 switching request acknowledgement message to source base station transparent vessel
(TargeteNBtoSource-eNBTransparentContainer) the RRC container (RRC Container) in carries out
ASN.1 decoding, obtains the corresponding RRC connection reconfiguration of downlink dedicated control channel information and sets message；
2022, the source base station configures (radioResourc in the dedicated radio resources that the RRC connection reconfiguration sets message
EConfigDedicated) increase sub-information element in information element, the sub-information element is for carrying the instruction information.
In the present embodiment, ASN.1 decoding is carried out by RRC container in step 2021, is realized to switching command
The decoding of (Handover Command), ASN.1 decoding are as follows.
Wherein, the corresponding RRCConnectionReconfig of DL-DCCH-Message (downlink dedicated control channel information)
Uration message is as follows.
Wherein, RadioResourceConfigDedicated (dedicated radio resources configuration information) is described as follows.
Information element in the corresponding RRCConnectionReconfiguration message of DL-DCCH-Message
Already present E-RAB is carried in sub-information element DRB-ToAddModList in radioResourceConfigDedicated
Mark.
In the present embodiment, the dedicated radio resources configuration information element of message is set in step 2022 in the RRC connection reconfiguration
Increase sub-information element in element, be specifically as follows:
Increase sub-information element DRB-ToReleaseList in RadioResourceConfigDedicated, specifically
It is described as follows:
In this implementation, DRB-Identity is set as the corresponding DRB-ID of E-RAB-ID in DRB-ToReleaseList, this
E-RAB-ID=7 in embodiment, DRB-ID=6.That is it is corresponding that DRB-Identity is set as the EPS established not successfully carrying
The mark for the DRB being successfully established.
In a specific example, the target RRC connection reconfiguration is set message and is sent to by source base station described in step 203
Target UE specifically includes unshowned following steps 2031 and 2032 in Fig. 2:
2031, the source base station sets message to the target RRC connection reconfiguration and carries out ASN.1 coding, forms RRC agreement number
According to unit；
2032, the RRC protocol Data Unit is sent to the target UE by the source base station.
In this implementation, source base station is to the RRCConnectionReconfig for carrying information element DRB-ToReleaseList
Uration message carries out ASN.1 coding, is formed RRC PDU (Protocol Data Unit, protocol Data Unit), and send
To UE.UE is discharged after receiving the RRCConnectionReconfiguration message for carrying DRB-ToReleaseList
The EPS established not successfully carries the corresponding DRB carrying being successfully established, and switching is performed simultaneously, to be linked into target BS.
After completing across base station handoff procedure, MME retransmits S1ERAB Setup Request message to target BS, and target BS is given
UE sends the business that RRCConnectionReconfiguration message establishes E-RAB-ID=7.UE is returned
RRCConnectionReestablishmentComplete.UE is successfully established E-RAB.
Based on above description, generally speaking, E-RAB of embodiment of the present invention establishment process and across base station handoff procedure are concurrent
The processing method of scene is: source base station carries out ASN.1 decoding to the switching command message that target BS is sent, after the decoding
Information element (Information Element, IE) is added in ASN.1 message: DRB-ToReleaseList (DRB column to be released
Table), it is used to indicate the corresponding DRB carrying of mark that UE discharges each DRB in DRB-ToReleaseList, i.e. instruction UE release
Fall the EPS established not successfully and carry the corresponding DRB carrying being successfully established, illustrates that EPS is held in 24.301 agreement of 3GPP TS
Carrying can repeat to establish without especially discharging.
As it can be seen that the processing of E-RAB establishment process and the concurrent scene of across base station handoff procedure that the embodiment of the present invention proposes
Method is set in message by the RRC connection reconfiguration carried in X2 switching request acknowledgement message and is increased after triggering across base station handoff procedure
Add instruction information to indicate that UE needs the DRB that discharges, so that re-starting E-RAB establishment process after the completion of switching across base station
When, UE will not feed back RRC connection re-establishment request message to target BS, to complete E-RAB foundation, it is seen then that touch in time
E-RAB is successfully established after the completion of guaranteeing switching while sending out across base station switching, can promote user's perception and KPI index.
Further, the concurrent scene of the E-RAB establishment process and across base station handoff procedure that the embodiment of the present invention proposes
Processing method avoids influence of the fullConfig mode to existing business, that is, avoids user's perception problems caused by high packet loss.
Further, the concurrent scene of the E-RAB establishment process and across base station handoff procedure that the embodiment of the present invention proposes
Processing method guarantees that E-RAB is successfully established after the completion of switching, improves handover success while triggering across base station switching in time
Rate and E-RAB are created as power.
As shown in figure 3, this implementation discloses a kind of base station, it may include with lower unit: receiving unit 31, adding unit 32 and
Transmission unit 33, each unit is described as follows:
Receiving unit 31 receives target BS and generates after triggering across base station handoff procedure in E-RAB establishment process
X2 switching request acknowledgement message；The target BS is the base station being responsible for switching in across base station handoff procedure and receiving；
Adding unit 32, the RRC connection reconfiguration for carrying in the X2 switching request acknowledgement message, which is set in message, to be increased
It indicates information, obtains target RRC connection reconfiguration and set message；Wherein, the instruction information is used to indicate the mark of DRB to be released
Know；
Transmission unit 33 is sent to target UE for the target RRC connection reconfiguration to be set message, so that the target UE
Release discharges DRB based on the instruction information；The target UE is the corresponding UE of across the base station handoff procedure.
The present embodiment can realize embodiment of the method shown in Fig. 2, therefore, illustrate and effect participates in side shown in Fig. 2
Method embodiment, this embodiment is not repeated, and base station disclosed in the present embodiment can be regarded as source base station.
In a specific example, established not successfully in the DRB to be released E-RAB establishment process
EPS carries the corresponding DRB being successfully established.
In a specific example, the adding unit 32 is specifically used for:
The target BS of the X2 switching request acknowledgement message is carried out to the RRC container in source base station transparent vessel
ASN.1 decoding, obtains the corresponding RRC connection reconfiguration of downlink dedicated control channel information and sets message；
Increase sub-information element in the dedicated radio resources configuration information element that the RRC connection reconfiguration sets message, it should
Sub-information element is for carrying the instruction information.
In a specific example, the transmission unit 33 is specifically used for:
Message is set to the target RRC connection reconfiguration and carries out ASN.1 coding, forms RRC protocol Data Unit；
The RRC protocol Data Unit is sent to the target UE.
Compared with prior art, the base station that the embodiment of the present invention proposes, after triggering across base station handoff procedure, by switching in X2
The RRC connection reconfiguration that request confirmation message carries, which is set, increases instruction information to indicate that UE needs the DRB that discharges in message, so that
When re-starting E-RAB establishment process after the completion of across base station switching, UE will not feed back RRC connection re-establishment request to target BS
Message, to complete E-RAB foundation, it is seen then that guarantee E-RAB success after the completion of switching while triggering across base station switching in time
It establishes, user's perception and KPI index can be promoted.
Further, the base station that the embodiment of the present invention proposes, avoids influence of the fullConfig mode to existing business, i.e.,
Avoid user's perception problems caused by high packet loss.
Further, the base station that the embodiment of the present invention proposes guarantees to have switched while triggering across base station switching in time
It is successfully established at rear E-RAB, improves handover success rate and E-RAB is created as power.
As shown in figure 4, the present embodiment discloses a kind of base station, comprising: processor 401, memory 402,403 and of communication interface
Bus 404；
Wherein, the processor 401, memory 402, communication interface 403 complete mutual lead to by the bus 404
Letter；
The communication interface 403 is for the information transmission between external equipment；The external equipment is, for example, UE, MME, base
It stands；
The processor 401 is used to call the program instruction in the memory 402, to execute the relevant each method of Fig. 2
Method provided by embodiment, for example,
After triggering across base station handoff procedure in E-RAB establishment process, it is true to receive the X2 switching request that target BS generates
Recognize message；The target BS is the base station being responsible for switching in across base station handoff procedure and receiving；
It is set in the RRC connection reconfiguration that the X2 switching request acknowledgement message carries and increases instruction information in message, obtain mesh
Mark RRC connection reconfiguration sets message；Wherein, the instruction information is used to indicate the mark of DRB to be released；
The target RRC connection reconfiguration is set into message and is sent to target UE, so that target UE release is based on the finger
Show that information discharges DRB；The target UE is the corresponding UE of across the base station handoff procedure.
The embodiment of the present invention also provides a kind of non-transient storage media, and the non-transient storage media stores program instruction,
Described program instruction, which is performed, realizes method provided by the relevant each method embodiment of Fig. 2, for example,
After triggering across base station handoff procedure in E-RAB establishment process, it is true to receive the X2 switching request that target BS generates
Recognize message；The target BS is the base station being responsible for switching in across base station handoff procedure and receiving；
It is set in the RRC connection reconfiguration that the X2 switching request acknowledgement message carries and increases instruction information in message, obtain mesh
Mark RRC connection reconfiguration sets message；Wherein, the instruction information is used to indicate the mark of DRB to be released；
The target RRC connection reconfiguration is set into message and is sent to target UE, so that target UE release is based on the finger
Show that information discharges DRB；The target UE is the corresponding UE of across the base station handoff procedure.
Those of ordinary skill in the art will appreciate that: realize the complete of method provided by the relevant each method embodiment of Fig. 2
This can be accomplished by hardware associated with program instructions for portion or part steps, and program above-mentioned can store computer-readable in one
It takes in storage medium, which when being executed, executes step including the steps of the foregoing method embodiments；And storage medium packet above-mentioned
It includes: the various media that can store program code such as ROM, RAM, magnetic or disk.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the embodiment of the present invention, rather than it is right
It is limited；Although the embodiment of the present invention is described in detail referring to foregoing embodiments, the ordinary skill of this field
Personnel are it is understood that it is still possible to modify the technical solutions described in the foregoing embodiments, or to part
Or all technical features are equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution
The range of each embodiment technical solution of the embodiment of the present invention.
Claims (10)
1. the processing method of a kind of E-RAB establishment process and the concurrent scene of across base station handoff procedure characterized by comprising
After source base station triggers across base station handoff procedure in E-RAB establishment process, the X2 switching request that target BS generates is received
Confirmation message；The source base station is base station of the triggering across base station handoff procedure, and the target BS is in across base station handoff procedure
It is responsible for the base station that switching is received；
The source base station is set in the RRC connection reconfiguration that the X2 switching request acknowledgement message carries increases instruction information in message,
It obtains target RRC connection reconfiguration and sets message；Wherein, the instruction information is used to indicate the mark of DRB to be released；
The target RRC connection reconfiguration is set message and is sent to target UE by the source base station, so that target UE release is based on
The instruction information discharges DRB；The target UE is the corresponding UE of across the base station handoff procedure.
2. the method according to claim 1, wherein the DRB to be released is in the E-RAB establishment process
The EPS established not successfully carries the corresponding DRB being successfully established.
3. method according to claim 1 or 2, which is characterized in that the source base station disappears in the X2 Handover Request Acknowledge
The RRC connection reconfiguration that breath carries, which is set, increases instruction information in message, obtain target RRC connection reconfiguration and set message, comprising:
The source base station to the target BS of the X2 switching request acknowledgement message to the RRC container in source base station transparent vessel into
Row ASN.1 decoding, obtains the corresponding RRC connection reconfiguration of downlink dedicated control channel information and sets message；
The source base station increases sub-information member in the dedicated radio resources configuration information element that the RRC connection reconfiguration sets message
Element, the sub-information element is for carrying the instruction information.
4. according to the method described in claim 3, it is characterized in that, the source base station sets the target RRC connection reconfiguration disappears
Breath is sent to target UE, comprising:
The source base station sets message to the target RRC connection reconfiguration and carries out ASN.1 coding, forms RRC protocol Data Unit；
The RRC protocol Data Unit is sent to the target UE by the source base station.
5. a kind of base station characterized by comprising
Receiving unit receives the X2 that target BS generates and cuts after triggering across base station handoff procedure in E-RAB establishment process
Change request confirmation message；The target BS is the base station being responsible for switching in across base station handoff procedure and receiving；
Adding unit, the RRC connection reconfiguration for carrying in the X2 switching request acknowledgement message, which is set, increases instruction letter in message
Breath, obtains target RRC connection reconfiguration and sets message；Wherein, the instruction information is used to indicate the mark of DRB to be released；
Transmission unit is sent to target UE for the target RRC connection reconfiguration to be set message, so that the target UE discharges base
DRB is discharged in the instruction information；The target UE is the corresponding UE of across the base station handoff procedure.
6. base station according to claim 5, which is characterized in that the DRB to be released is in the E-RAB establishment process
The EPS established not successfully carries the corresponding DRB being successfully established.
7. base station according to claim 5 or 6, which is characterized in that the adding unit is specifically used for:
ASN.1 solution is carried out to the RRC container in source base station transparent vessel to the target BS of the X2 switching request acknowledgement message
Code, obtains the corresponding RRC connection reconfiguration of downlink dedicated control channel information and sets message；
Increase sub-information element, the sub- letter in the dedicated radio resources configuration information element that the RRC connection reconfiguration sets message
Breath element is for carrying the instruction information.
8. base station according to claim 7, which is characterized in that the transmission unit is specifically used for:
Message is set to the target RRC connection reconfiguration and carries out ASN.1 coding, forms RRC protocol Data Unit；
The RRC protocol Data Unit is sent to the target UE.
9. a kind of base station characterized by comprising processor, memory, communication interface and bus；
Wherein, the processor, memory, communication interface complete mutual communication by the bus；
The communication interface is for the information transmission between external equipment；
The processor is used to call the program instruction in the memory, to execute the side as described in any one of Claims 1-4
The step of method.
10. a kind of non-transient storage media, the non-transient storage media stores program instruction, which is characterized in that described program
Instruction is performed the step of realization any one of such as Claims 1-4 the method.
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