CN102065499A - Protection method and system for X2 interface switching - Google Patents
Protection method and system for X2 interface switching Download PDFInfo
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- CN102065499A CN102065499A CN2009102380860A CN200910238086A CN102065499A CN 102065499 A CN102065499 A CN 102065499A CN 2009102380860 A CN2009102380860 A CN 2009102380860A CN 200910238086 A CN200910238086 A CN 200910238086A CN 102065499 A CN102065499 A CN 102065499A
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Abstract
The invention provides a protection method for X2 interface switching, which comprises the following steps: S202. an X2 Interface Application Protocol receives a user equipment context release message of an X2 interface control surface, or a Packet Data Convergence Protocol reversely completes one of multiple messages and waits for another message; and S204. an endmarker protection timer is arranged in a target base station through the Packet Data Convergence Protocol, and then started. The method and system provided by the invention solve the problem of redundant cache data, shorten the time delay of the switching service interruption, and enhance the user experience.
Description
Technical field
The present invention relates to the communications field, relate in particular to guard method and system that X2 interface switches.
Background technology
The GPRS Tunnel Protocol of user level (GPRS tunneling protocol for the userplane, abbreviating GTP-U as) packet is by User Data Protocol (user data protocol, abbreviate UDP as) protocol Data Unit (protocol data unit, abbreviate PDU as) carrying, the UDP bag is not a reliable transmission, GTP-U control might be lost in transmission course with " end marker (finishing sign) " packet, 36.300 the flow process in the agreement is described suggestion and is realized by repeatedly sending " end marker ", but can't solve the problem that " end marker " loses at all.
Now, describe existing protocol with reference to Fig. 2 and describe " end marker " relevant treatment in the X2 interface switching.
Particularly, source base station " end marker " handling process is as follows: user plane packets data convergence protocol (packet data convergence protocol, abbreviate PDCP as) receive that the GTP-U " end marker " that core net SGW issues notifies X2 interface application protocol (X2 interface applicationprotocol, abbreviate X2 interface AP as)), PDCP is switching in the carrying to target BS transmission " end marker "; In addition, the X2 interface chain of command receives customer equipment context release (UE CONTEXT RELEASE) message that target BS is sent, AP deletes this user S1 interface/X2 interface related resource, user's related resource by X2 interface AP notice Radio Resource control (radioresource control abbreviates RRC as) source of release base station.
In addition, target BS " end marker " handling process is as follows: PDCP receive source base station and target BS X2 interface switch in the carrying " end marker " afterwards, notice X2 interface AP deletion X2 interface switches user resources, and PDCP begins the downlink data of sending from core net SGW that receives is issued the UE that successfully inserts from eating dishes without rice or wine then.
Yet there is following shortcoming in present this processing.
At first, the GTP-U " end marker " that core net SGW is handed down to source base station loses, source base station user face can't be received GTP-U " end marker ", just can not delete this user's X2 interface and switch the corresponding resource of carrying, do not need transmission but this user's X2 interface resource has in fact been switched data, therefore caused the waste of resource.When X2 interface AP receives the UE CONTEXT RELEASE message of X2 interface chain of command, can't judge that user face data is switched to finish, make and can't carry out normal user resources deletion.
Secondly, source base station is issued target BS " end marker " and is lost switching in the carrying, and the resource on this user's X2 interface of target BS can't be deleted, thereby wastes the X2 interface AP user resources and the X2 interface transfer resource of the X2 interface of target BS.In addition, the PDCP of target BS does not receive source base station " end marker ", the downlink data of having received of sending from core net SGW can be transmitted to and insert successful UE, make PDCP data cached can't normally issue UE, thereby cause target BS PDCP EMS memory occupation too much, service switchover interruption time delay is longer, poor user experience.
Therefore, need a kind of method and system that can overcome the prior art shortcoming.
Summary of the invention
At the problem that prior art exists, make the present invention.
According to a first aspect of the invention, the guard method that provides a kind of X2 interface to switch, may further comprise the steps: step S202, the customer equipment context release message of X2 interface application protocol reception X2 interface chain of command or PDCP are switched and are finished in the message and wait for another; And step S204, end marker protection timer is set in target BS and starts end marker protection timer by PDCP.
Wherein, in step S204, start after the end marker protection timer and before the endmarker protection timer expiry; if PDCP receives the end marker packet that sends from source base station; then stop end marker protection timer, and notice X2 interface application protocol deletion active user's X2 interface user resources.
On the other hand; in step S204, start after the end marker protection timer; if PDCP does not receive end marker packet and the end marker protection timer expiry that sends from source base station, then notify X2 interface application protocol deletion active user's X2 interface user resources.
In addition, in deletion active user's X2 interface user resources and receive after path switching finishes message, target BS sends the customer equipment context release message of described X2 interface chain of command to source base station.
Preferably, determine end marker protection length of timer by system emulation.
In step S204, when receiving Radio Resource control handoff completion message, start end marker protection timer.
In addition, if what receive in step S202 is the customer equipment context release message, then this method also comprises: stop to be arranged on the global protecting timer in the source base station.
If what receive in step S202 is the customer equipment context release message of X2 interface chain of command, then this method also comprises: determine whether to receive PDCP and switch and finish message, wherein, if PDCP receives the endmarker packet that issues from core net, then expression receives PDCP and switches and finish message, and sends end marker packet to target BS.
On the one hand, switch and finish message if determine to receive PDCP, then this method also comprises: S1 interface/X2 interface related resource of X2 interface application protocol deletion active user; And user's related resource of X2 interface application protocol notice Radio Resource control source of release base station.
On the other hand, switch and finish message if determine not receive PDCP, then this method also comprises: start the X2 interface protection timer that is arranged in the source base station; Switch under the situation of finishing message S1 interface/X2 interface related resource of X2 interface application protocol deletion active user at the overtime also PDCP that do not receive of X2 interface protection timer; And user's related resource of X2 interface application protocol notice Radio Resource control source of release base station.
Preferably, determine X2 interface protection length of timer by system emulation.
In addition, if what receive in step S202 is that PDCP is switched and finished message, then this method also comprises: X2 interface application protocol deletion active user's X2 interface associated transport resource, and the customer equipment context release message of wait X2 interface chain of command.
If receive the customer equipment context release message of X2 interface chain of command, then this method also comprises: S1 interface/X2 interface related resource of X2 interface application protocol deletion active user; And user's related resource of X2 interface application protocol notice Radio Resource control source of release base station.
If do not receive the customer equipment context release message of X2 interface chain of command, then this method also comprises: whether the global protecting timer of determining to be arranged in the source base station is overtime; And under the overtime situation of described global protecting timer; send customer equipment context to mobile management entity and discharge request message, notify S1 interface/X2 interface related resource of X2 interface application protocol deletion active user to trigger the customer equipment context dispose procedure.
According to a further aspect in the invention, the protection system that provides a kind of X2 interface to switch, comprise source base station and target BS, and comprise: X2 interface protection timer, be arranged in the source base station, receive the customer equipment context release message of X2 interface chain of command but not receiving that PDCP is switched under the situation of finishing message is activated at the X2 interface application protocol, be used to guarantee to delete S1 interface/X2 interface related resource of active user; The global protecting timer, be arranged in the source base station, but receiving PDCP at the X2 interface application protocol switches and finishes message be activated under the situation of customer equipment context release message of not receiving the X2 interface chain of command, be used for sending customer equipment context and discharge request message, notify S1 interface/X2 interface related resource of X2 interface application protocol deletion active user to trigger the customer equipment context dispose procedure to mobile management entity; And end marker protection timer; be arranged in the target BS; be used for receiving Radio Resource control handoff completion message but not receiving under the situation of the end marker packet that sends from source base station being activated, be used to guarantee to delete active user's X2 interface user resources at PDCP.
After starting end marker protection timer and before the end marker protection timer expiry; if PDCP receives the end marker packet that sends from source base station; then stop end marker protection timer, and notice X2 interface application protocol deletion active user's X2 interface user resources.
In addition; after starting end marker protection timer; if PDCP does not receive end marker packet and the end marker protection timer expiry that sends from source base station, then notify X2 interface application protocol deletion active user's X2 interface user resources.
In addition, in deletion active user's X2 interface user resources and receive after path switching finishes message, target BS sends the customer equipment context release message of described X2 interface chain of command to source base station.
Preferably, determine end marker protection length of timer by system emulation.
Preferably, when receiving Radio Resource control handoff completion message, start end marker protection timer.
After the X2 interface application protocol receives the customer equipment context release message of X2 interface chain of command, stop the global protecting timer.
If determining also to receive PDCP after the X2 interface application protocol receives the customer equipment context release message of X2 interface chain of command switches and finishes message, user's related resource of then S1 interface/X2 interface related resource of X2 interface application protocol deletion active user, and notice Radio Resource control source of release base station.
On the other hand; switch under the situation of finishing message at the overtime also PDCP that do not receive of X2 interface protection timer; S1 interface/X2 interface related resource of X2 interface application protocol deletion active user, and user's related resource of notice Radio Resource control source of release base station.
Preferably, determine X2 interface protection length of timer by system emulation.
Before starting the global protecting timer, X2 interface application protocol deletion active user's X2 interface associated transport resource, and the customer equipment context release message of wait X2 interface chain of command.
In addition, receiving PDCP at the X2 interface application protocol switches and finishes message and receive under the situation of customer equipment context release message of X2 interface chain of command, S1 interface/X2 interface related resource of X2 interface application protocol deletion active user, and user's related resource of notice Radio Resource control source of release base station.
In technical scheme of the present invention; by X2 interface protection timer and endmarker protection timer are set; as long as when timer expiry, also do not receive desired message; the user resources of just deletion correspondence; thereby avoided data cached too much problem; reduce service switchover and interrupted time delay, improved user experience.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram that the end marker handling process of prior art is shown;
Fig. 2 is the flow chart that the guard method of switching according to X2 interface of the present invention is shown;
Fig. 3 is the block diagram that the protection system of switching according to X2 interface of the present invention is shown;
Fig. 4 is the schematic diagram that illustrates according to the end marker protection process chart of the target BS of the embodiment of the invention;
Fig. 5 illustrates the schematic diagram of receiving the handling process of customer equipment context release message according to the X2 interface AP of the source base station of the embodiment of the invention;
Fig. 6 is the schematic diagram that illustrates according to the handling process of the X2 interface protection timer expiry of the source base station of the embodiment of the invention;
Fig. 7 illustrates X2 interface AP according to the source base station of the embodiment of the invention to handle PDCP and switch the schematic diagram of the handling process of finishing message; And
Fig. 8 is the schematic diagram that the overtime handling process of global protecting timer (overall timer) according to the embodiment of the invention is shown.
Embodiment
Describe embodiments of the invention in detail below in conjunction with accompanying drawing.
Notice that S1 interface among the present invention and X2 interface all are the logic interfacing between the equipment.Particularly, the S1 interface comprises: S1-U (S1 for the user plane, S1 interface user plane interface), it is eNB and EPC (evolved packet core, the packet-based core networks of evolution) user's face equipment S-GW (serving-gateway, gateway) logic interfacing between, transmission user face data between eNB and S-GW; And S1-MME (S1 for the control plane, S1 interface control plane interface), it is the logic interfacing between eNB and the EPC chain of command equipment MME (mobilitymanagement entity, Mobility Management Entity), transmission S1AP protocol signaling message between eNB and MME.In addition, X2 interface comprises: X2-U (X2 for theuser plane, X2 interface interface in the user plane), and it is the logic interfacing between the adjacent eNB, is used for transmission user face data between adjacent eNB; And X2-C (X2 for the controlplane, X2 interface chain of command interface), it is the logic interfacing between the adjacent eN3, is used for transmission X2AP protocol signaling message between adjacent eNB.
Fig. 2 is the flow chart that the guard method of switching according to X2 interface of the present invention is shown.
With reference to Fig. 1, guard method according to X2 interface switching of the present invention, may further comprise the steps: step S202, the customer equipment context release message of X2 interface application protocol reception X2 interface chain of command or PDCP are switched and are finished in the message and wait for another; And step S204, end marker protection timer is set in target BS and starts end marker protection timer by PDCP.
Fig. 3 is the block diagram that the protection system of switching according to X2 interface of the present invention is shown.
With reference to Fig. 3, the protection system of switching according to X2 interface of the present invention comprises source base station 302 and target BS 304, and comprise: X2 interface protection timer 3022, be arranged in the source base station 302, receive the customer equipment context release message of X2 interface chain of command but not receiving that PDCP is switched under the situation of finishing message is activated at the X2 interface application protocol, be used to guarantee to delete S1 interface/X2 interface related resource of active user; Global protecting timer 3024, be arranged in the source base station 302, but receiving PDCP at the X2 interface application protocol switches and finishes message be activated under the situation of customer equipment context release message of not receiving the X2 interface chain of command, be used for sending customer equipment context and discharge request message, notify S1 interface/X2 interface related resource of X2 interface application protocol deletion active user to trigger the customer equipment context dispose procedure to mobile management entity; And end marker protection timer 3042; be arranged in the target BS 304; be used for receiving Radio Resource control handoff completion message but not receiving under the situation of the endmarker packet that sends from source base station being activated, be used to guarantee to delete active user's X2 interface user resources at PDCP.
Below, specifically describe embodiments of the invention with reference to Fig. 4 to Fig. 8.
Fig. 4 is the schematic diagram that illustrates according to the end marker protection process chart of the target BS of the embodiment of the invention.At the shortcoming of prior art, in target BS of the present invention, by PDCP timer (that is end marker protection timer) is set and protects.This timer startup opportunity is for receiving the RRC handoff completion message, and the PDCP timer duration determined by methods such as system emulations, thereby guarantees that resource can correctly delete.
As can be seen from Figure 4, if PDCP receives in the carrying that source base station sends " endmarker " packet switching, just stop PDCP protection timer, PDCP notice X2 interface AP deletes this user's X2 interface user resources.On the other hand, if PDCP does not receive in the carrying that source base station sends " end marker " packet switching, and PDCP protection timer expiry, then PDCP notice X2 interface AP deletes this user's X2 interface user resources, delete former in timer expiry.X2 interface AP only need send UE CONTEXT RELEASE message to source base station on X2 interface after target BS receives that path switching is finished message.
In addition, in source base station, protect by X2 interface AP protection timer.
Fig. 5 illustrates the schematic diagram of receiving the handling process of customer equipment context release message according to the X2 interface AP of the source base station of the embodiment of the invention, and Fig. 6 is the schematic diagram that illustrates according to the handling process of the X2 interface protection timer expiry of the source base station of the embodiment of the invention.
As shown in Figure 5; if X2 interface AP at first receives the UECONTEXT RELEASE message of X2 interface chain of command; will stop to be arranged on the global protecting timer (being also referred to as the overall timer) in the source base station; determining whether to receive PDCP then switches and finishes message; if PDCP receives the end marker packet that issues from core net; then expression receives PDCP and switches and finish message, and sends end marker packet to target BS.
Switch and finish message if determine to receive PDCP, then X2 interface AP just deletes S1 interface/X2 interface related resource of active user, and user's related resource of notice RRC source of release base station.
On the contrary, if not receiving that PDCP switches finishes message, just start X2 interface AP protection timer, wherein, timer duration is set by methods such as system emulations.
As shown in Figure 6, X2 interface AP wait PDCP switches and finishes message.If PDCP receives the GTP-U " end marker " that core net SGW issues before this timer expiry, PDCP just sends to switch to X2 interface AP and finishes message, is switching in the carrying to target BS transmission " end marker " bag.After this, AP deletes this user S1 interface/X2 interface related resource, by user's related resource of X2 interface AP notice RRC source of release base station.
Fig. 7 illustrates X2 interface AP according to the source base station of the embodiment of the invention to handle PDCP and switch the schematic diagram of the handling process of finishing message, and Fig. 8 is the schematic diagram that illustrates according to the handling process of the overall timer expiry of the embodiment of the invention.
With reference to Fig. 7, if what at first receive is that PDCP switches and finishes message, expression PDCP has received the GTP-U " end marker " that core net SGW issues, and PDCP has sent " end marker " to target BS switching in the carrying, X2 interface AP deletes this user's X2 interface associated transport resource, and waits for the UE CONTEXTRELEASE message of X2 interface chain of command.
If receive the UE CONTEXT RELEASE message of X2 interface chain of command, then X2 interface AP deletes S1 interface/X2 interface related resource of this user, and user's related resource of notice RRC source of release base station.
With reference to Fig. 8, if X2 interface AP does not receive the UECONTEXT RELEASE message of X2 interface chain of command, then the Overall timer expiry process by source base station triggers UE context release request process, triggering following UE context dispose procedure, thus notice AP deletes this user S1 interface/X2 interface related resource.
In technical scheme of the present invention, target BS is provided with timer protection by PDCP, and this timer startup opportunity is for receiving the RRC handoff completion message, and the PDCP timer duration is determined by methods such as system emulations.The target BS side is by the timer protection mechanism of PDCP; the user is after target BS successfully inserts; effectively avoided target BS PDCP data cached too much; it is longer to have reduced service switchover interruption time delay; improved user's business experience; guaranteed that simultaneously X2 interface switches user resources and reliably deleted, thereby made that the X2 interface resource can be by effective configuration using.
Secondly, source base station side X2 interface AP does not switch when finishing message if receive PDCP when receiving X2 interface UE CONTEXTRELEASE message, will start the protection of X2 interface AP timer, and wherein timer duration is determined by methods such as system emulations.If not receiving PDCP in X2 interface AP protection timer start-up course switches and finishes after message and the X2 interface AP protection timer expiry; just delete user S1 interface/X2 interface resource, and notify user's related resource of RRC source of release base station by X2 interface AP.The source base station side starts the protection timer by X2 interface AP UE context dispose procedure, has guaranteed that reliably the source base station user resources are deleted, has guaranteed that at utmost the link of harmless switching keeps, for harmless the switching provides resource guarantee.
In addition, source base station and target BS PDCP after certain bar GTPU link receives " endmarker " packet, PDCP by switch finish message informing mode display notification X2 interface AP link need the deletion.Source base station has satisfied the harmless switching demand under chain of command signaling message and service surface " end marker " the message sink order uncertain condition fully by the flow process guarantee of X2 interface AP module.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.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 (26)
1. the guard method that X2 interface switches is characterized in that, said method comprising the steps of:
Step S202, the customer equipment context release message of the X2 interface application protocol reception X2 interface chain of command of source base station or PDCP are switched and are finished in the message and wait for another; And
Step S204 is provided with end sign protection timer and starts described end sign protection timer by PDCP in target BS.
2. guard method according to claim 1; it is characterized in that; in described step S204, start after the described end sign protection timer and before the described end sign protection timer expiry; if described PDCP receives the end identification data packet of sending from described source base station; then stop described end sign protection timer, and notify described X2 interface application protocol deletion active user's X2 interface user resources.
3. guard method according to claim 1; it is characterized in that; in described step S204, start after the described end sign protection timer; if described PDCP does not receive end identification data packet and the described end sign protection timer expiry that sends from described source base station, then notify described X2 interface application protocol deletion active user's X2 interface user resources.
4. according to claim 2 or 3 described guard methods; it is characterized in that; in deletion active user's X2 interface user resources and receive after path switching finishes message, described target BS sends the customer equipment context release message of described X2 interface chain of command to described source base station.
5. guard method according to claim 1 is characterized in that, determines described end sign protection length of timer by system emulation.
6. guard method according to claim 1 is characterized in that, in described step S204, when receiving Radio Resource control handoff completion message, starts described end sign protection timer.
7. guard method according to claim 1 is characterized in that, if what receive in described step S202 is described customer equipment context release message, then described method also comprises: stop to be arranged on the global protecting timer in the described source base station.
8. guard method according to claim 1; it is characterized in that; if what receive in described step S202 is the customer equipment context release message of described X2 interface chain of command; then described method also comprises: determine whether to receive described PDCP and switch and finish message; wherein; if described PDCP receives the end identification data packet that issues from core net; then expression receives described PDCP and switches and finish message, and sends described end identification data packet to described target BS.
9. guard method according to claim 8 is characterized in that, switches and finishes message if determine to receive described PDCP, and then described method also comprises:
S1 interface/X2 interface related resource of described X2 interface application protocol deletion active user; And
The control of described X2 interface application protocol notice Radio Resource discharges user's related resource of described source base station.
10. guard method according to claim 8 is characterized in that, switches and finishes message if determine not receive described PDCP, and then described method also comprises:
Start the X2 interface protection timer that is arranged in the source base station;
Do not receive described PDCP and switch under the situation of finishing message S1 interface/X2 interface related resource of described X2 interface application protocol deletion active user in that described X2 interface protection timer is overtime also; And
The control of described X2 interface application protocol notice Radio Resource discharges user's related resource of described source base station.
11. guard method according to claim 10 is characterized in that, determines described X2 interface protection length of timer by system emulation.
12. guard method according to claim 1 is characterized in that, if what receive in described step S202 is that described PDCP is switched and finished message, then described method also comprises:
Described X2 interface application protocol is deleted active user's X2 interface associated transport resource, and waits for the customer equipment context release message of described X2 interface chain of command.
13. guard method according to claim 12 is characterized in that, if receive the customer equipment context release message of described X2 interface chain of command, then described method also comprises:
S1 interface/X2 interface related resource of described X2 interface application protocol deletion active user; And
The control of described X2 interface application protocol notice Radio Resource discharges user's related resource of described source base station.
14. guard method according to claim 12 is characterized in that, if do not receive the customer equipment context release message of described X2 interface chain of command, then described method also comprises:
Whether the described global protecting timer of determining to be arranged in the source base station is overtime; And
Under the overtime situation of described global protecting timer; send customer equipment context to mobile management entity and discharge request message, notify S1 interface/X2 interface related resource of described X2 interface application protocol deletion active user to trigger the customer equipment context dispose procedure.
15. the protection system that X2 interface switches, described protection system comprises source base station and target BS, it is characterized in that, described protection system also comprises:
X2 interface protection timer, be arranged in the source base station, receive the customer equipment context release message of X2 interface chain of command but not receiving that PDCP is switched under the situation of finishing message is activated at the X2 interface application protocol, be used to guarantee to delete S1 interface/X2 interface related resource of active user;
The global protecting timer, be arranged in the source base station, but receiving described PDCP at described X2 interface application protocol switches and finishes message be activated under the situation of customer equipment context release message of not receiving described X2 interface chain of command, be used for sending customer equipment context and discharge request message, notify S1 interface/X2 interface related resource of described X2 interface application protocol deletion active user to trigger the customer equipment context dispose procedure to mobile management entity; And
Finish sign protection timer; be arranged in the target BS; be used for receiving Radio Resource control handoff completion message but not receiving under the situation of the end identification data packet of sending being activated, be used to guarantee to delete active user's X2 interface user resources from described source base station at PDCP.
16. protection system according to claim 15; it is characterized in that; after starting described end sign protection timer and before the described end sign protection timer expiry; if described PDCP receives the end identification data packet of sending from described source base station; then stop described end sign protection timer, and notify described X2 interface application protocol deletion active user's X2 interface user resources.
17. protection system according to claim 15; it is characterized in that; after starting described end sign protection timer; if described PDCP does not receive end identification data packet and the described end sign protection timer expiry that sends from described source base station, then notify described X2 interface application protocol deletion active user's X2 interface user resources.
18. according to claim 16 or 17 described protection systems; it is characterized in that; in deletion active user's X2 interface user resources and receive after path switching finishes message, described target BS sends the customer equipment context release message of described X2 interface chain of command to described source base station.
19. protection system according to claim 15 is characterized in that, determines described end sign protection length of timer by system emulation.
20. protection system according to claim 15 is characterized in that, when receiving Radio Resource control handoff completion message, starts described end sign protection timer.
21. protection system according to claim 15 is characterized in that, after described X2 interface application protocol receives the customer equipment context release message of described X2 interface chain of command, stops described global protecting timer.
22. protection system according to claim 15; it is characterized in that; if determining also to receive described PDCP after described X2 interface application protocol receives the customer equipment context release message of described X2 interface chain of command switches and finishes message; S1 interface/X2 interface related resource of then described X2 interface application protocol deletion active user, and the control of notice Radio Resource discharges user's related resource of described source base station.
23. protection system according to claim 15; it is characterized in that; do not receive described PDCP and switch under the situation of finishing message in that described X2 interface protection timer is overtime also; S1 interface/X2 interface related resource of described X2 interface application protocol deletion active user, and the control of notice Radio Resource discharges user's related resource of described source base station.
24. protection system according to claim 23 is characterized in that, determines described X2 interface protection length of timer by system emulation.
25. protection system according to claim 15; it is characterized in that; before starting described global protecting timer, described X2 interface application protocol is deleted active user's X2 interface associated transport resource, and waits for the customer equipment context release message of described X2 interface chain of command.
26. protection system according to claim 15; it is characterized in that; receiving described PDCP at described X2 interface application protocol switches and finishes message and receive under the situation of customer equipment context release message of described X2 interface chain of command; S1 interface/X2 interface related resource of described X2 interface application protocol deletion active user, and the control of notice Radio Resource discharges user's related resource of described source base station.
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| WO2016177102A1 (en) * | 2015-07-27 | 2016-11-10 | 中兴通讯股份有限公司 | Method and device for processing value of timer, and computer storage medium |
| CN110446230A (en) * | 2018-05-02 | 2019-11-12 | 中国移动通信有限公司研究院 | Network side equipment interface adding method and network side equipment |
| CN111132195A (en) * | 2019-12-19 | 2020-05-08 | 京信通信技术(广州)有限公司 | Data switching method and device, computer equipment and storage medium |
| WO2024093059A1 (en) * | 2023-02-24 | 2024-05-10 | Lenovo (Beijing) Limited | Network devices, terminal device and methods for communications |
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| WO2016177102A1 (en) * | 2015-07-27 | 2016-11-10 | 中兴通讯股份有限公司 | Method and device for processing value of timer, and computer storage medium |
| CN106413008A (en) * | 2015-07-27 | 2017-02-15 | 中兴通讯股份有限公司 | Timer value processing method and device |
| CN110446230A (en) * | 2018-05-02 | 2019-11-12 | 中国移动通信有限公司研究院 | Network side equipment interface adding method and network side equipment |
| CN111132195A (en) * | 2019-12-19 | 2020-05-08 | 京信通信技术(广州)有限公司 | Data switching method and device, computer equipment and storage medium |
| CN111132195B (en) * | 2019-12-19 | 2022-05-03 | 京信网络系统股份有限公司 | Data switching method and device, computer equipment and storage medium |
| WO2024093059A1 (en) * | 2023-02-24 | 2024-05-10 | Lenovo (Beijing) Limited | Network devices, terminal device and methods for communications |
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| CN102065499B (en) | 2013-12-25 |
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