CN110876206B - Concurrent switching processing method and device - Google Patents
Concurrent switching processing method and device Download PDFInfo
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- CN110876206B CN110876206B CN201811027289.0A CN201811027289A CN110876206B CN 110876206 B CN110876206 B CN 110876206B CN 201811027289 A CN201811027289 A CN 201811027289A CN 110876206 B CN110876206 B CN 110876206B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/18—Management of setup rejection or failure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
Abstract
The embodiment of the invention discloses a concurrent switching processing method and a device, wherein the method comprises the following steps: after receiving a request message for E-RAB establishment or modification, judging whether a preset switch is turned on or not; if the preset switch is judged to be turned on, judging whether the received switching measurement report is before an air interface reconfiguration completion message is received; if the air interface reconfiguration completion message is received, terminating the establishment or modification process of the E-RAB, and sending failure feedback carrying the reason value to the MME; and if the air interface reconfiguration completion message is received, executing the establishment or modification process of the E-RAB and triggering the concurrent switching process. The termination or execution of the establishment or modification process of the E-RAB is determined by setting the preset switch and judging different time of the received switching measurement report, so that the problem of different concurrent switching processes under different switching scenes is solved, the call drop rate of UE in an LTE system is effectively reduced, the success rate of VoLTE is improved, and the influence on the use of a user is reduced.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a concurrent switching processing method and device.
Background
Concurrent switching in the dedicated load establishing process, because the dedicated load is switched without being established, the dedicated load establishing will fail, VoLTE (Voice over LTE, Voice service based on IMS, where LTE represents Long Term Evolution, Long Term Evolution) call failure, and meanwhile, such concurrency will cause a core network to release UE (User Equipment), and such RRC (Radio Resource Control) release is not presented in KPI (Key Performance Indicator).
In the prior art, concurrent handover is performed in a dedicated Bearer establishment process, a base station does not perform special processing on the dedicated Bearer, an E-RAB (Evolved Radio Access Bearer) establishment is encountered in the handover process, an E-RAB establishment failure is directly replied, measurement reports reported in the E-RAB establishment process are all lost and not processed, the dedicated Bearer establishment failure is directly triggered, and therefore a VoLTE call drop is caused, and the use of a user is influenced.
Disclosure of Invention
Because the existing method has the above problem, the embodiments of the present invention provide a concurrent handover processing method and apparatus.
In a first aspect, an embodiment of the present invention provides a concurrent handover processing method, including:
after receiving a request message for establishing or modifying an evolved radio access bearer E-RAB, judging whether a preset switch is turned on or not; the preset switch is used for carrying out bearing processing and switching concurrent processing;
if the preset switch is judged to be turned on, judging whether the received switching measurement report is before an air interface reconfiguration completion message is received;
if the received switching measurement report is before the air interface reconfiguration completion message is received, terminating the establishment or modification process of the E-RAB, and sending failure feedback carrying a reason value to a mobile management node MME;
and if the received switching measurement report receives the air interface reconfiguration completion message, executing the establishment or modification process of the E-RAB and triggering a concurrent switching process.
Optionally, if the received handover measurement report is before receiving the air interface reconfiguration complete message, terminating the establishment or modification process of the E-RAB, and sending failure feedback carrying the cause value to the mobility management node MME, specifically including:
in the process of establishing the E-RAB, if the received handover measurement report is before receiving an air interface reconfiguration completion message, after receiving a handover request message of RRM (Radio Resource Management), notifying an AP (Access Point) and the RRM that the current E-RAB establishment fails, terminating the process of establishing the E-RAB, clearing an instance of E-RAB bearer establishment, and sending failure feedback carrying a cause value to an MME (Mobility Management node).
Optionally, if the received handover measurement report receives the air interface reconfiguration complete message, then the process of establishing or modifying the E-RAB is executed, and a concurrent handover procedure is triggered, which specifically includes:
if the received switching measurement report receives the air interface reconfiguration completion message, executing the establishment or modification process of the E-RAB, caching the switching measurement report, and starting a timer;
and if the uplink direct transmission message is received before the timer is judged to be overtime, stopping the timer, and triggering a concurrent switching process according to the cached switching measurement report.
Optionally, the method further comprises:
and if a new switching measurement report is received within the timing time of the timer, caching the new switching measurement report and not triggering a concurrent switching process.
Optionally, the method further comprises:
and if a non-switching measurement report is received or a concurrent switching process cannot be triggered after the switching measurement report is received, continuing to execute the establishment or modification process of the E-RAB.
Optionally, the handover request message indicates the target cell to perform handover of the fully configured fullconfig by using a preset cause value.
In a second aspect, an embodiment of the present invention further provides a concurrent handover processing apparatus, including:
the switch judgment module is used for judging whether a preset switch is turned on or not after receiving a request message for establishing or modifying an evolved radio access bearer E-RAB; the preset switch is used for carrying out bearing processing and switching concurrent processing;
a receiving sequence judging module, configured to judge whether the received handover measurement report is before an air interface reconfiguration complete message is received if it is judged that the preset switch is turned on;
a process termination module, configured to terminate an E-RAB establishment or modification process and send a failure feedback carrying a cause value to a mobility management node MME if the received handover measurement report is before the air interface reconfiguration complete message is received;
and the process execution module is used for executing the establishment or modification process of the E-RAB and triggering the concurrent switching process if the received switching measurement report receives the air interface reconfiguration completion message.
Optionally, the process termination module is specifically configured to:
in the process of establishing the E-RAB, if the received switching measurement report is before an air interface reconfiguration completion message is received, after a switching request message of radio resource management RRM is received, an access point AP and the RRM are notified that the current E-RAB establishment fails, the establishing process of the E-RAB is terminated, an example of E-RAB bearer establishment is cleared, and failure feedback carrying a cause value is sent to a mobility management node MME.
In a third aspect, an embodiment of the present invention further provides an electronic device, including:
at least one processor; and
at least one memory communicatively coupled to the processor, wherein:
the memory stores program instructions executable by the processor, which when called by the processor are capable of performing the above-described methods.
In a fourth aspect, an embodiment of the present invention further provides a non-transitory computer-readable storage medium storing a computer program, which causes the computer to execute the above method.
According to the technical scheme, the embodiment of the invention determines the termination or execution of the establishment or modification process of the E-RAB by setting the preset switch and judging different time of the received switching measurement report, solves the problem of different concurrent switching processes in different switching scenes, effectively reduces the call drop rate of UE in an LTE system, improves the success rate of VoLTE, and reduces the influence on the use of a user.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic flowchart of a concurrent handover processing method according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of a concurrent handover processing method according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of a concurrent handover processing apparatus according to an embodiment of the present invention;
fig. 4 is a logic block diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Fig. 1 shows a flowchart of a concurrent handover processing method provided in this embodiment, which includes:
s101, after receiving a request message for establishing or modifying an evolved radio access bearer E-RAB, judging whether a preset switch is turned on or not; the preset switch is used for carrying out bearing processing and switching concurrent processing.
Specifically, after receiving the message of the E-RAB establishment/modification request, the HL (High Level) of the base station needs to determine whether the "bearer processing and handover concurrent processing switch" is turned on, and if so, the following procedure is continued, otherwise, the processing is performed according to the existing procedure, as shown in fig. 2.
And S102, if the preset switch is judged to be turned on, judging whether the received switching measurement report is before an air interface reconfiguration completion message is received.
And S103, if the received switching measurement report is before the air interface reconfiguration completion message is received, terminating the establishment or modification process of the E-RAB, and sending failure feedback carrying the reason value to the MME.
Specifically, referring to fig. 2, after receiving the handover measurement report processing before the reconfiguration complete message of bearer establishment/modification, in the E-RAB establishment process, after the base station side sends the RRC reconfiguration message of bearer establishment, before receiving the air interface reconfiguration complete message, if the base station receives a measurement report for handover at this time (mainly, measurement configured as "handover algorithm" by measalgontype in a measurement event), and the RRM processes the measurement report after the measurement report to normally trigger handover, the E-RAB establishment process is terminated; if a non-handover measurement report is received or a handover measurement report is received but the RRM process cannot trigger the handover procedure thereafter, the E-RAB establishment procedure is continued.
Specifically, when the inter-station handover is performed, i.e. the handover preparation process and the handover execution process after receiving the measurement report, if an E-RAB establishment request is received at this time, the handover preparation and the handover execution message are processed preferentially, the base station terminates the E-RAB establishment process, and carries the Cause value (the Cause value, triggered by the inter-system/intra-system S1 handover or X2 handover) in the E-RAB Failed to Setup List of the E-RAB Setup Response message.
And S104, if the received switching measurement report receives the air interface reconfiguration completion message, executing the establishment or modification process of the E-RAB, and triggering a concurrent switching process.
Specifically, for intra-station handover, an E-RAB establishment procedure needs to be performed after handover is completed, so as to ensure that a concurrent handover procedure is triggered after the E-RAB establishment procedure is successful.
In the embodiment, the preset switch is set, and different times of the received switching measurement report are judged to determine the termination or execution of the establishment or modification process of the E-RAB, so that the problem of different concurrent switching processes in different switching scenes is solved, the call drop rate of the UE in the LTE system is effectively reduced, the success rate of the VoLTE is improved, and the influence on the use of the user is reduced.
Further, on the basis of the above method embodiment, S103 specifically includes:
in the process of establishing the E-RAB, if the received switching measurement report is before an air interface reconfiguration completion message is received, after a switching request message of radio resource management RRM is received, an access point AP and the RRM are notified that the current E-RAB establishment fails, the establishing process of the E-RAB is terminated, an example of E-RAB bearer establishment is cleared, and failure feedback carrying a cause value is sent to a mobility management node MME.
And the handover request message indicates the target cell to perform handover of the fully configured fullconfig by using a preset cause value.
Specifically, the process of terminating the E-RAB establishment procedure is as follows: and the RRC receives the measurement report when waiting for the air interface reconfiguration completion message of the bearer establishment completion, informs the AP of the E-RAB establishment failure after receiving the switching request message of the RRM, informs the RRM of the ERAB establishment failure, stops the E-RAB establishment process, then clears the E-RAB bearer establishment example and starts to process the switching process. If the terminal protocol version only supports r8, no special treatment is carried out (the exception occurring at the moment cannot be avoided); otherwise, there are the following two schemes to trigger the target cell to perform fullconfig:
first, a special cause value is used in the handover request message to instruct the target cell to perform fullconfig handover. Wherein, in the S1 switching request message, the cause value uses "Interaction with other procedure"; in the X2 Handover request message, the cause value uses "Handover optimization"; and switching in the station, and marking by adding a new mark bit in the station. After the target cell receives the handover request message, if the newly added cause value or mark is found to be used, the mark is to be fullconfig. This approach has the disadvantage of not being adaptable to different vendors.
And secondly, switching in the station, and marking by newly adding a mark bit in the station for distinguishing the target cell. Between stations, when filling ue-configrule-r 9 in the handover request message, filling it as spare1 (if the base station protocol version is upgraded, this value may need to be modified and needs to be higher than the current base station protocol version), after receiving, the target cell finds that this IE value is spare1, then it is determined that fullconfig is to be performed, otherwise, it continues to perform operations such as checking according to the original flow. The drawback of this approach is that it cannot be determined whether the different vendor will also make a contrast restriction on the IE and UE capability protocol versions, so it cannot be guaranteed that the different vendor will certainly make fullconfig.
Specifically, the RRC determines, according to the handover type triggered by the measurement, a cause value carried in the ERAB setup failure message to the AP, and the specific determination rule is as follows:
1) if the E-RAB failure is caused by X2 switching in the system, cause is "X2 Handover triggered";
2) if the E-RAB failure is caused by S1 switching in the system, cause is "S1 intra system Handover trigged";
3) if the E-RAB failure is caused by S1 Handover between systems, cause is "S1 inter system Handover trigged";
4) if the Handover is the multiple ready set Handover or the intra-system Handover, the call is returned to X2 Handover triggered.
In addition, at this time, since the reconfiguration complete message of the QCI (Qos Class Identifier, where Qos represents Quality of Service) Bearer establishment has not been received yet, it cannot be determined whether the QCI Bearer at the terminal side is successful, so that only the original DRB (Data Resource Bearer, Data Bearer between the terminal and the base station) is considered during the handover, and the newly established Bearer is not handed over.
In the E-RAB modification process, after a base station side sends a bearing modified RRC reconfiguration message and before an air interface reconfiguration completion message is received, if the base station receives a measurement report capable of triggering switching at the moment and RRM processes the measurement report after the measurement report and can normally trigger switching, the E-RAB modification process is terminated, AP and RRM are informed that the E-RAB modification is successful, and normal switching is continuously executed. The reason is that the E-RAB modification message seen in the current test does not have the content of substantively requiring the terminal to modify the parameters.
Further, on the basis of the above method embodiment, S104 specifically includes:
s1041, if the received switching measurement report receives the air interface reconfiguration completion message, executing the establishment or modification process of the E-RAB, caching the switching measurement report, and starting a timer;
and S1042, if the uplink direct transmission message is received before the timer is judged to be overtime, stopping the timer, and triggering a concurrent switching process according to the cached switching measurement report.
Specifically, the processing of receiving the measurement report after receiving the air interface reconfiguration complete message that the bearer establishment/modification is successful is the same as the processing of receiving the measurement report after receiving the air interface reconfiguration complete message that the bearer establishment is successful, and the description of the E-RAB establishment is also applicable to the E-RAB modification without special description.
When the base station receives the E-RAB Setup request, completes the QCI bearer establishment, receives the RRC reconfiguration completion message of the air interface QCI bearer establishment and then receives the measurement report message, the E-RAB establishment is required to be completed firstly, and the measurement report which needs to be cached is A3\ A4\ A5 of the mobility switching based on the coverage in the system, other measurements do not need to cache such as A4/B1 measurement of load balance, measurement of CA, intersystem data or voice B2, intersystem interoperation B1 and the like, so that the switching can be continuously triggered after the E-RAB establishment is completed, and the measurement which does not need to be cached is sent to RRM for processing.
For example, a timer Thodelay for delaying the response of handover measurement report needs to be set, the HL starts the handover delay timer Thodelay after receiving an RRC reconfiguration complete message that completes the establishment of an air interface QCI bearer, receives a measurement report for handover within a timer time, and at this time, buffers the measurement report without processing the handover procedure.
Further, on the basis of the above embodiment of the method, the method further comprises:
and S105, if a new switching measurement report is received within the timing time of the timer, caching the new switching measurement report, and not triggering a concurrent switching process.
S106, if a non-switching measurement report is received or a concurrent switching process cannot be triggered after a switching measurement report is received, continuing to execute the establishment or modification process of the E-RAB.
Specifically, after receiving the measurement report, the RRC invokes the RRM function to query the measurement report type, and if the measurement report is a measurement report for mobility handover, the RRC performs caching, and sends other measurement types to the RRM for processing. The RRC buffers only the latest received handover measurement report and only one measurement report, and buffers only the latest measurement report for handover measurement.
If the RRC receives and completes the uplink direct transfer message processing before the handover delay timer expires, the RRC stops the timer and performs handover processing according to the buffered measurement report, as shown in fig. 2. In the implementation, the first uplink direct transmission message received after the air interface receives the E-RAB establishment reconfiguration completion message is the active truncated EPS bearer context access, and at this time, the timer can be stopped, and the switching processing process is started. Thus, there may be a certain proportion of misjudgments, which may cause a handover failure, for example, the received first NAS (Non-access stratum) message is not an active determined EPS bearer context access message, such as TAU.
If there are two bearers that are continuously established/modified/deleted (with NAS PDU), the concurrent timer will affect the establishment/modification/deletion (with NAS PDU) of the second bearer, and when the implementation is needed, the timer is restarted when the message processed by the second bearer is received, and the timer is stopped after the two uplink NAS messages are received, so as to trigger the handover process. The case of two bearers being established/modified/deleted consecutively (with NAS PDUs) is now considered for a while.
After the handover delay timer expires, handover processing is also required according to the buffered measurement report. And no other configuration flow operation is carried out in the timeout process of the waiting timer.
After the time length of the timer is dynamically modified, the RRC is valid for new parameters when the timer is started next time. That is, the time length of the timer is modified under the condition that the timer is started, the RRC still uses the original timer to judge, and the new timer parameter is not used until the timer is started again.
It should be noted that the "bearer processing and switching concurrent processing switch" is only effective for a new user after being dynamically turned off.
When the inter-station handover is performed, namely, the handover preparation process and the handover execution process after receiving the measurement report, if the E-RAB establishment request is received at this time, the handover preparation and the handover execution message are processed preferentially, the base station terminates the E-RAB establishment process, and carries the Cause value in the E-RAB Failed to Setup List of the E-RAB Setup Response message (triggered by the inter-system/intra-system S1 handover or X2 handover). For intra-station handover, the E-RAB establishment procedure needs to be performed after the handover is completed, so as to ensure that the E-RAB establishment procedure is successful.
When the base station receives the measurement report message before receiving the dedicated bearer Reconfiguration Complete (RRC Connection Reconfiguration Complete) message, it needs to perform Handover first and reply the dedicated bearer setup failure, which is "S1 inter system Handover triggered", "S1 inter system Handover triggered" or "X2 Handover triggered".
When the base station receives the dedicated bearer setup Reconfiguration Complete (RRC Connection Reconfiguration Complete) message and then receives the measurement report message, the base station needs to Complete the E-RAB setup and buffer the measurement report. The specific requirement is that the eNB starts the delayed Response handover measurement report timer Thodelay after replying to the E-RAB Setup Response message. The timer has the following properties and requirements: the timer has two states: valid and invalid; the timer is effective after being started, and is ineffective after overtime or actively setting invalid action; in the effective period of the timer, the base station buffers the received switching measurement report without preparing switching preparation; and when the time is invalid, responding to the time, and preparing for switching. Wherein the measurement report to be cached only contains the intra-system handover, and the same measurement id only caches the latest measurement report.
And after the uplink direct transmission message is received and processed in the valid period of the timer, setting the timer as invalid. And after the reconfiguration completion message for the e-rab in the air interface is received, an uplink direct transmission message is considered as an active determined EPS bearer context access, and the timer is set to be invalid. There will be a certain percentage of misjudgments, for example, the above messages come from other nas, such as TAU, etc. Such misjudgment can be tolerated at present.
The duration of Thodelay (100 ms-2000 ms, adjusted granularity of 100 ms. recommended value of 500ms) supports operator configuration, and the above ERAB establishment is only implemented for QCI1 and QCI 2.
In this embodiment, in an E-RAB establishment concurrent handover scenario, for an E-RAB that successfully establishes a radio bearer DRB but does not successfully establish an EPS bearer on a radio side, a bearer processing and handover concurrent processing switch is added, and if the bearer processing and handover concurrent processing switch is turned off, the concurrent process is not processed, and the processing is directly performed according to the following two principles: when the ERAB establishment is met in the switching process, the ERAB establishment failure is directly replied; the measurement reports reported in the ERAB establishing process are all discarded and not processed. If the bearing lining and the switch concurrent processing switch are opened, the following two scenes are divided:
first, the measurement report process is received before the reconfiguration complete message of bearer establishment/modification: after a base station side sends an RRC reconfiguration message for bearing establishment and before an air interface reconfiguration completion message is received, if a base station receives a measurement report (mainly referring to measurement that MeasAlgoType is configured as a switching algorithm in a measurement event) for switching at the moment, and RRM (radio resource management) processes the measurement report after the measurement report and can normally trigger switching, terminating the E-RAB establishment process; if a non-handover measurement report is received or a handover measurement report is received but the RRM process cannot trigger the handover procedure thereafter, the E-RAB establishment procedure is continued.
Second, processing of receiving a measurement report after receiving an air interface reconfiguration complete message of successful bearer establishment/modification: the processing of receiving the measurement report after receiving the bearer modified air interface reconfiguration complete message is the same as the processing of receiving the measurement report after receiving the bearer establishment successful air interface reconfiguration complete message.
Fig. 3 is a schematic structural diagram of a concurrent switching processing apparatus provided in this embodiment, where the apparatus includes:
the switch determining module 301 is configured to determine whether a preset switch is turned on after receiving a request message for establishing or modifying an evolved radio access bearer E-RAB; the preset switch is used for carrying out bearing processing and switching concurrent processing;
a receiving sequence determining module 302, configured to determine whether the received handover measurement report is before an air interface reconfiguration complete message is received if it is determined that the preset switch is turned on;
a process terminating module 303, configured to terminate an E-RAB establishment or modification process and send failure feedback carrying a cause value to a mobility management node MME if the received handover measurement report is before the air interface reconfiguration complete message is received;
the process executing module 304 is configured to execute an E-RAB establishing or modifying process and trigger a concurrent handover procedure if the received handover measurement report receives the air interface reconfiguration complete message.
Specifically, the switch determining module 301 determines whether the preset switch is turned on after receiving a request message for establishing or modifying an evolved radio access bearer E-RAB; the preset switch is used for carrying out bearing processing and switching concurrent processing; if the receiving sequence determining module 302 determines that the preset switch is turned on, it determines whether the received handover measurement report is before the air interface reconfiguration complete message is received; the process terminating module 303 terminates the E-RAB establishment or modification process and sends a failure feedback carrying a cause value to the mobility management node MME, if the received handover measurement report is before receiving the air interface reconfiguration complete message; the process executing module 304, if the received handover measurement report receives the air interface reconfiguration complete message, executes the E-RAB establishment or modification process, and triggers a concurrent handover procedure.
In the embodiment, the preset switch is set, and different times of the received switching measurement report are judged to determine the termination or execution of the establishment or modification process of the E-RAB, so that the problem of different concurrent switching processes in different switching scenes is solved, the call drop rate of the UE in the LTE system is effectively reduced, the success rate of the VoLTE is improved, and the influence on the use of the user is reduced.
Further, on the basis of the above apparatus embodiment, the process termination module is specifically configured to:
in the process of establishing the E-RAB, if the received switching measurement report is before an air interface reconfiguration completion message is received, after a switching request message of radio resource management RRM is received, an access point AP and the RRM are notified that the current E-RAB establishment fails, the establishing process of the E-RAB is terminated, an example of E-RAB bearer establishment is cleared, and failure feedback carrying a cause value is sent to a mobility management node MME.
The concurrent handover processing apparatus described in this embodiment may be used to execute the method embodiments described above, and the principle and technical effect are similar, which are not described herein again.
Referring to fig. 4, the electronic device includes: a processor (processor)401, a memory (memory)402, and a bus 403;
wherein the content of the first and second substances,
the processor 401 and the memory 402 complete communication with each other through the bus 403;
the processor 401 is configured to call program instructions in the memory 402 to perform the methods provided by the above-described method embodiments.
The present embodiments disclose a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform the methods provided by the above-described method embodiments.
The present embodiments provide a non-transitory computer-readable storage medium storing computer instructions that cause the computer to perform the methods provided by the method embodiments described above.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
It should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A concurrent handover processing method, comprising:
after receiving a request message for establishing or modifying an evolved radio access bearer E-RAB, judging whether a preset switch is turned on or not; the preset switch is used for carrying out bearing processing and switching concurrent processing;
if the preset switch is judged to be turned on, judging whether the received switching measurement report is before an air interface reconfiguration completion message is received;
if the received switching measurement report is before the air interface reconfiguration completion message is received, terminating the establishment or modification process of the E-RAB, and sending failure feedback carrying a reason value to a mobile management node MME;
and if the received switching measurement report receives the air interface reconfiguration completion message, executing the establishment or modification process of the E-RAB and triggering a concurrent switching process.
2. The method according to claim 1, wherein if the received handover measurement report is before receiving the air interface reconfiguration complete message, terminating the E-RAB establishment or modification process, and sending failure feedback carrying a cause value to the mobility management node MME, specifically includes:
in the process of establishing the E-RAB, if the received switching measurement report is before an air interface reconfiguration completion message is received, after a switching request message of radio resource management RRM is received, an access point AP and the RRM are notified that the current E-RAB establishment fails, the establishing process of the E-RAB is terminated, an example of E-RAB bearer establishment is cleared, and failure feedback carrying a cause value is sent to a mobility management node MME.
3. The method according to claim 1, wherein the performing, if the received handover measurement report receives the air interface reconfiguration complete message, an E-RAB establishment or modification procedure, and triggering a concurrent handover procedure, specifically includes:
if the received switching measurement report receives the air interface reconfiguration completion message, executing the establishment or modification process of the E-RAB, caching the switching measurement report, and starting a timer;
and if the uplink direct transmission message is received before the timer is judged to be overtime, stopping the timer, and triggering a concurrent switching process according to the cached switching measurement report.
4. The method of claim 3, further comprising:
and if a new switching measurement report is received within the timing time of the timer, caching the new switching measurement report and not triggering a concurrent switching process.
5. The method of claim 1, further comprising:
and if a non-switching measurement report is received or a concurrent switching process cannot be triggered after the switching measurement report is received, continuing to execute the establishment or modification process of the E-RAB.
6. The method according to claim 2, wherein a preset process cause value is used in the handover request message to instruct the target cell to perform handover of fully configured fullconfig.
7. A concurrent handover processing apparatus, comprising:
the switch judgment module is used for judging whether a preset switch is turned on or not after receiving a request message for establishing or modifying an evolved radio access bearer E-RAB; the preset switch is used for carrying out bearing processing and switching concurrent processing;
a receiving sequence judging module, configured to judge whether the received handover measurement report is before an air interface reconfiguration complete message is received if it is judged that the preset switch is turned on;
a process termination module, configured to terminate an E-RAB establishment or modification process and send a failure feedback carrying a cause value to a mobility management node MME if the received handover measurement report is before the air interface reconfiguration complete message is received;
and the process execution module is used for executing the establishment or modification process of the E-RAB and triggering the concurrent switching process if the received switching measurement report receives the air interface reconfiguration completion message.
8. The apparatus of claim 7, wherein the process termination module is specifically configured to:
in the process of establishing the E-RAB, if the received switching measurement report is before an air interface reconfiguration completion message is received, after a switching request message of radio resource management RRM is received, an access point AP and the RRM are notified that the current E-RAB establishment fails, the establishing process of the E-RAB is terminated, an example of E-RAB bearer establishment is cleared, and failure feedback carrying a cause value is sent to a mobility management node MME.
9. An electronic device, comprising:
at least one processor; and
at least one memory communicatively coupled to the processor, wherein:
the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of any of claims 1 to 4.
10. A non-transitory computer-readable storage medium storing a computer program that causes a computer to perform the method according to any one of claims 1 to 4.
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