Summary of the invention
The embodiment of the invention provides a kind of motion management method and equipment, for solving in dense network deployment scenarioIn, there is presently no aiming at the problem that terminal mobility management mechanism of UDN network.
In a first aspect, providing a kind of motion management method, this method is applied to dense network, wherein local serviceThe control plane of center LSC and first base station composition dense network, local data center LDC and the second base station form intensive netThe user plane of network, this method comprises:
The LSC determines that the terminal needs to switch after determining switching that terminal needs to carry out user plane pathThe second base station of target arrived, second base station of target for switching after provide the second base station of service for the terminal；
The user plane path of the terminal is switched to second base station of target, institute from the second base station of source by the LSCThe second base station of source is stated to provide the second base station of service before switching for the terminal.
As a kind of optional implementation, the LSC determines that the terminal needs to carry out the user plane pathSwitching, comprising: after the LSC receives the first message that the first base station is sent, determine that the terminal needs to carry outThe switching of user plane, wherein include the identification information of at least one the second base station in the first message；
The LSC determines the second base station of target that the terminal needs to be switched to, comprising: the LSC disappears from described firstIn corresponding second base station of the identification information for including in breath, the second base station of target that the terminal needs to be switched to is determined.
As another optional implementation, the LSC determines that the terminal needs to carry out the user plane roadThe switching of diameter, comprising: after the LSC receives the measurement report that the first base station is sent, determine the terminal need intoThe switching of row user plane, wherein the measurement report is after being measured by the terminal to the second base station around itselfIt is reported to the first base station；
The LSC determines the second base station of target that the terminal needs to be switched to, comprising: the LSC according to measurement report,Determine the second base station of target that the terminal needs to be switched to.
As a kind of optional implementation, the LSC is by the user plane path of the terminal from second base of sourceStation is switched to second base station of target, comprising:
The LSC generates the parameter information of the first user plane access between the second base station the LDC and the target；
The LSC sends second message to second base station of target, to request second base station of target for the endResource and the first user plane access is established needed for the distributing user plane data transfer of end, is wrapped in the second messageInclude the parameter information；And the LSC sends third message to the LDC, to request the LDC to establish first userPlane access includes the parameter information in the third message.
Optionally, the parameter information includes:
The endpoint of a tunnel mark of the second base station of Tunnel End Point Identifier and target of LDC in the first user plane accessKnow；Or
The ip routing information of the first user plane access；Or
The SDN flow table configuration information of the first user plane access.
As another optional implementation, the LSC is by the user plane path of the terminal from the source secondBase station is switched to second base station of target, comprising:
The LSC sends the 4th message to second base station of target, to request described in the second base station of target generationThe endpoint of a tunnel mark of the second base station of the target in the first user plane access between the second base station LDC and the targetKnow；And the LSC sends the 5th message to the LDC, to request the LDC to generate in the first user plane accessThe Tunnel End Point Identifier of the LDC；
The LSC is after the Tunnel End Point Identifier for receiving the LDC that the LDC is returned, the second base of Xiang Suoshu targetIt stands and sends second message, to request second base station of target to be the terminal distribution user plane data transfer resource and buildThe first user plane access is found, includes the Tunnel End Point Identifier of the LDC in the second message；And the LSC existsAfter the Tunnel End Point Identifier for receiving the second base station of the target that second base station of target returns, Xiang Suoshu LDC sends theThree message include the target second in the third message to request the LDC to establish the first user plane accessThe Tunnel End Point Identifier of base station.
In possible implementation, this method further include:
The LSC receives the response message that second base station of target returns, with determination second base station of targetPreparation before completing the terminal access.
In possible implementation, after the LSC receives the response message that second base station of target returns, the partyMethod further include:
The LSC sends the 6th message to the first base station, to notify the second base station of target described in the first base stationPreparation before the terminal access is completed.
In possible implementation, the method also includes:
The LSC sends release request to second base station of source, to request second base station of source to discharge the terminalInterface-free resources and the second base station of the source and the LDC between second user plane access.
Based on any of the above-described embodiment, in possible implementation, this method further include:
The LSC determines that the network topology structure of the user plane of dense network changes；
The LSC updates the network topology structure of the user plane of dense network, and determines each second base station to instituteState the most short transmission path of LDC；
The LSC each of will determine that relevant information of second base station to the most short transmission path of the LDC, notice are givenCorresponding second base station.
In possible implementation, the LSC occurs in the network topology structure for the user plane for determining dense networkWhen variation, the network topology structure is updated, comprising:
The LSC is after receiving the link information of user plane for the second base station newly accessed, according to the new accessThe second base station user plane link information, update the network topology structure；Or
The LSC is after receiving the updated user face link information of any second base station, after the updateUser face link information, update the network topology structure；Or
The LSC determine any second base station from dense network remove after, update the network topology structure.
Second aspect, provides a kind of motion management method, and this method is applied to dense network, wherein local serviceThe control plane of center LSC and first base station composition dense network, local data center LDC and the second base station form intensive netThe user plane of network, this method comprises:
The LDC receives the third message that the LSC is sent, wherein the third message is for requesting the LDC to buildVertical the first user plane access the second base station of target between, second base station of target is provides service for terminal after switchingThe second base station；
The LDC establishes the first user plane access according to the third message.
It include the parameter information of the first user plane access in possible implementation, in the third message；InstituteLDC is stated according to the third message, establishes the first user plane access, comprising: the LDC according to the parameter information,Establish the first user plane access；
Or
It include the endpoint of a tunnel of the second base station of the target in the first user plane access in the third messageMark, the LDC establish the first user plane access, comprising: LDC is generated according to the LDC according to the third messageThe first user plane access in the LDC the second base station of Tunnel End Point Identifier and the target endpoint of a tunnel markKnow, establishes the first user plane access.
In possible implementation, the parameter information includes:
The endpoint of a tunnel mark of the second base station of Tunnel End Point Identifier and target of LDC in the first user plane accessKnow；Or
The ip routing information of the first user plane access；Or
The SDN flow table configuration information of the first user plane access.
In possible implementation, the LDC is received before the third message that the LSC is sent, further includes:
The LDC receives the 5th message that the LSC is sent, and the 5th message is for requesting the LDC to generate instituteState the Tunnel End Point Identifier of the LDC in the first user plane access；
The LDC generates the Tunnel End Point Identifier of the LDC；
The LDC sends the Tunnel End Point Identifier of the LDC to the LSC.
In possible implementation, the LDC establishes the first user plane access between the second base station of the targetLater, this method further include:
The LDC is sent to the second base station of source terminates label end marker, so that the second base station of the source will not transmitDownlink data be forwarded to second base station of target, wherein second base station of source is the where before terminal switchingTwo base stations.
In possible implementation, the LDC is established after the first user plane access, this method further include:
The LDC returns to confirmation message to the LSC, to notify that it is flat that first user has been established in LDC described in the LSCFace access.
Fourth aspect, provides a kind of local service center LSC, and the LSC is applied to dense network, the LSC and theOne base station forms the control plane of dense network, and local data center LDC and the second base station form the user plane of dense network,The LSC includes:
Decision-making module, for after determining switching that terminal needs to carry out user plane path, determining that the terminal needsThe second base station of target to be switched to, second base station of target for switching after provide the second base station of service for the terminal；
Switching module, for the user plane path of the terminal to be switched to second base of target from the second base station of sourceStand, second base station of source for switching before provide the second base station of service for the terminal.
In possible implementation, the decision-making module is specifically used for:
After receiving the first message that the first base station is sent, determine that the terminal needs to carry out cutting for user planeIt changes, wherein include the identification information of at least one the second base station in the first message；The mark for including from the first messageKnow in corresponding second base station of information, determines the second base station of target that the terminal needs to be switched to；
Or
After receiving the measurement report that the first base station is sent, determine that the terminal needs to carry out cutting for user planeIt changes, wherein the measurement report is to be reported to described first after being measured by the terminal to the second base station around itselfBase station；According to the measurement report, the second base station of target that the terminal needs to be switched to is determined.
As a kind of optional implementation, the switching module is specifically used for:
Generate the parameter information of the first user plane access between the second base station the LDC and the target；
Second message is sent to second base station of target, to request second base station of target for terminal distribution useResource needed for the plane data transfer of family and the first user plane access is established, includes the ginseng in the second messageNumber information；And third message is sent to the LDC, it is described to request the LDC to establish the first user plane accessIt include the parameter information in third message.
As another optional implementation, the switching module is specifically used for:
The 4th message is sent to second base station of target, to request second base station of target to generate the LDC and instituteState the Tunnel End Point Identifier of the second base station of the target in the first user plane access between the second base station of target；And toThe LDC sends the 5th message, to request the LDC to generate the tunnel end of the LDC in the first user plane accessPoint identification；
After the Tunnel End Point Identifier for receiving the LDC that the LDC is returned, the second base station of Xiang Suoshu target sends theTwo message, to request second base station of target to be the terminal distribution user plane data transfer resource and establish described firstUser plane access includes the Tunnel End Point Identifier of the LDC in the second message；And receiving the target secondAfter the Tunnel End Point Identifier for the second base station of the target that base station returns, Xiang Suoshu LDC sends third message, described in requestLDC establishes the first user plane access, includes the Tunnel End Point Identifier of second base station of target in the third message.
In possible implementation, the switching module is also used to:
Resource release request is sent to second base station of source, to request second base station of source to discharge the sky of the terminalSecond user plane access between mouth resource and the second base station of the source and the LDC.
Based on any of the above-described embodiment, in possible implementation, the LSC further include:
Network topology structure maintenance module, for determining that the network topology structure of user plane of dense network becomesChange；The network topology structure of the user plane of dense network is updated, and determines the most short pass of each second base station to the LDCDefeated path；It each of will determine the second base station to the most short transmission path of the LDC, notify to corresponding second base station.
In possible implementation, the network topology structure maintenance module is specifically used for:
After receiving the link information of user plane for the second base station newly accessed, according to the second base of the new accessThe link information for the user plane stood updates the network topology structure；Or
After receiving the updated user face link information of any second base station, according to the updated user faceLink information updates the network topology structure；Or
Determine any second base station from dense network remove after, update the network topology structure.
Fourth aspect, provides a kind of local data center LDC, and the LDC method is applied to dense network, wherein instituteThe user plane of LDC and the second base station composition dense network are stated, local service center LSC and first base station form dense networkControl plane, the LDC includes:
Receiving module, the third message sent for receiving the LSC, wherein the third message is for requesting instituteThe first user plane access between LDC foundation and the second base station of target is stated, it is terminal that second base station of target, which is after switching,Second base station of service is provided；
Processing module, for establishing the first user plane access according to the third message.
It include the parameter information of the first user plane access in possible implementation, in the third message；InstituteIt states processing module to be specifically used for: according to the parameter information, establishing the first user plane access；
Or
The tunnel end for the second base station of the target in the first user plane access for including in the third messagePoint identification, the processing module are specifically used for: the tunnel end of the LDC in the first user plane access generated according to itselfThe Tunnel End Point Identifier of the second base station of point identification and the target, the first user established between the second base station of the target are flatFace access.
In possible implementation, the receiving module is also used to: receiving the 5th message that the LSC is sent；
The processing module is also used to: generating the Tunnel End Point Identifier of the LDC of the first user plane access；ToThe LSC sends the Tunnel End Point Identifier of the LDC.
In possible implementation, the processing module is also used to:
Sending to the second base station of source terminates label end marker, so that the lower line number that the second base station of the source will not transmittedAccording to being forwarded to second base station of target, wherein second base station of source is the second base station where before terminal switching.
5th aspect, provides another local service center LSC, and the LSC is applied to dense network, the LSC andFirst base station forms the control plane of dense network, and the user that local data center LDC and the second base station form dense network is flatFace, the LSC include: input interface, output interface, processor and memory, in which:
Processor executes following process for reading the program in memory:
After determining the switching that terminal needs to carry out user plane path, target that the terminal needs to be switched to the is determinedTwo base stations, second base station of target for switching after provide the second base station of service for the terminal；By the user of the terminalPanel path is switched to second base station of target from the second base station of source, and it is that the terminal mentions that second base station of source, which is before switching,For the second base station of service；
Input interface for receiving data and signaling under the control of a processor；
Output interface for sending data and signaling under the control of a processor.
In possible implementation, processor reads the program in memory, also executes following process:
After receiving the first message that the first base station is sent by input interface, determine that the terminal needs to carry outThe switching of user plane, wherein include the identification information of at least one the second base station in the first message；Disappear from described firstIn corresponding second base station of the identification information for including in breath, the second base station of target that the terminal needs to be switched to is determined；
Or
After receiving the measurement report that the first base station is sent by input interface, determine that the terminal needs to carry outThe switching of user plane, wherein the measurement report be after being measured by the terminal to the second base station around itself onOffer the first base station；According to the measurement report, the second base station of target that the terminal needs to be switched to is determined.
As a kind of optional implementation, processor reads the program in memory, specifically executes following process:
Generate the parameter information of the first user plane access between the second base station the LDC and the target；
Second message is sent to second base station of target by output interface, to request second base station of target as instituteIt states the required resource of terminal distribution user plane data transmission and establishes the first user plane access, the second messageIn include the parameter information；And third message is sent to the LDC by output interface, to request the LDC to establish instituteThe first user plane access is stated, includes the parameter information in the third message.
As another optional implementation, processor reads the program in memory, specifically executes following process:
The 4th message is sent to second base station of target by output interface, to request second base station of target to generateThe endpoint of a tunnel of the second base station of the target in the first user plane access between the second base station the LDC and the targetMark；And the 5th message is sent to the LDC by output interface, to request the LDC to generate first user planeThe Tunnel End Point Identifier of the LDC in access；
After the Tunnel End Point Identifier for receiving the LDC that the LDC is returned by input interface, by output interface toSecond base station of target sends second message, to request second base station of target for the terminal distribution user plane dataIt transfer resource and establishes the first user plane access, includes the Tunnel End Point Identifier of the LDC in the second message；WithAnd after receiving the Tunnel End Point Identifier for the second base station of the target that second base station of target returns by input interface, lead toIt crosses output interface and sends third message to the LDC, to request the LDC to establish the first user plane access, described theIt include the Tunnel End Point Identifier of second base station of target in three message.
In possible implementation, processor reads the program in memory, also executes following process:
Resource release request is sent to second base station of source by output interface, to request second base station of source to dischargeSecond user plane access between the interface-free resources of the terminal and the second base station of the source and the LDC.
Based on any of the above-described embodiment, optionally, processor reads the program in memory, also executes following process:
Determine that the network topology structure of the user plane of dense network changes；Update the user plane of dense networkNetwork topology structure, and determine each second base station to the most short transmission path of the LDC；It each of will determine secondBase station is notified by output interface to corresponding second base station to the most short transmission path of the LDC.
Optionally, processor reads the program in memory, specifically executes following process:
After receiving the link information of user plane for the second base station newly accessed by input interface, according to described newThe link information of the user plane of second base station of access, updates the network topology structure；Or
After receiving the updated user face link information of any second base station by input interface, according to it is described moreUser face link information after new, updates the network topology structure；Or
Determine any second base station from dense network remove after, update the network topology structure.
6th aspect, provides another local data center LDC, and the LDC method is applied to dense network, whereinThe user plane of the LDC and the second base station composition dense network, local service center LSC and first base station form intensive netThe control plane of network, the LDC include: input interface, output interface, processor and memory, in which:
Processor executes following process for reading the program in memory:
The third message that the LSC is sent is received by input interface, wherein the third message is described for requestingThe first user plane access between LDC foundation and the second base station of target, it is that terminal mentions that second base station of target, which is after switching,For the second base station of service；According to the third message, the first user plane access is established；
Input interface for receiving data and signaling under the control of a processor；
Output interface 1302 for sending data and signaling under the control of a processor.
It include the parameter information of the first user plane access in possible implementation, in the third message；PlaceThe program in device reading memory is managed, following process is specifically executed: according to the parameter information, establishing first user planeAccess；
Or
The tunnel end for the second base station of the target in the first user plane access for including in the third messagePoint identification, processor read the program in memory, specifically execute following process: flat according to first user itself generatedThe Tunnel End Point Identifier of the second base station of the Tunnel End Point Identifier of LDC in the access of face and the target is established and the target theThe first user plane access between two base stations.
In possible implementation, processor reads the program in memory, also executes following process:
The 5th message that the LSC is sent is received by input interface；Generate the institute of the first user plane accessState the Tunnel End Point Identifier of LDC；The Tunnel End Point Identifier of the LDC is sent to the LSC.
Based on any of the above-described embodiment, processor reads the program in memory 1304, also executes following process:
Being sent by output interface to the second base station of source terminates label end marker, so that the second base station of the source will notThe downlink data of transmission is forwarded to second base station of target, wherein second base station of source is place before terminal switchingThe second base station.
In method and apparatus provided in an embodiment of the present invention, in dense network, LSC is determining that terminal is usedAfter the switching of family plane, determine the second base station of target that the terminal needs to be switched to, and by the user plane of the terminal fromSecond base station of source is switched to second base station of target, to realize in dense network by the user of LSC controlling terminalThe handoff procedure of plane, provide it is a kind of by LSC control dense network under terminal mobility management mechanism.
Specific embodiment
The embodiment of the present invention is applied to dense network, and the network architecture of dense network is as shown in Figure 2 A and 2 B, is accessingNet side disposes local access server (Local Access Server), which includes to be responsible for control plane signaling processingLocal data center (the Local of local service center (Local Service Center, abbreviation LSC) and responsible data exchangeData Center, abbreviation LDC).Wherein, first base station (MeNB) is connected to LSC, and LSC and first base station constitute access netControl plane, wherein the control plane for accessing net, which is mainly responsible for, carries out the maintenance of user plane topology, mobile management, user facePath computing and maintenance；The user plane of second base station (SeNB) it is direct or indirect be connected to LDC, and the control of the second base stationPlane is connect with first base station, and (also referred to as Forwarding plane or data are flat for the user plane of LDC and the second base station composition access netFace), wherein the user plane for accessing net is mainly responsible for data transmission.Under dense network scene, it is flat that first base station is responsible for controlThe data transmission of user plane is responsible in the signalling in face, the second base station, and there are control planes between first base station and the second base stationSignaling interface.Between user plane in dense network and control plane by the wired connection of first base station and the second base station orWireless connection interacts.
Optionally, first base station is macro base station, and the second base station is small station.Wherein, small station includes at least: micro-base station(Micro), femto base station (Pico) and Home eNodeB (Femto, also referred to as femto base station).
Base station in the embodiment of the present invention can be refer to the accession in net in the sky on interface by one or more sectors withThe equipment of wireless terminal communications.The air frame that base station can be used for receive mutually is converted with IP grouping, as wireless terminalRouter between the rest part of access net, wherein the rest part for accessing net may include Internet protocol (IP) network.BaseTunable is gone back to the attribute management of air interface in station.For example, base station can be base station (BTS, Base in GSM or CDMATransceiver Station), it is also possible to the base station (NodeB) in WCDMA, can also be the evolved base station in LTE(NodeB or eNB or e-NodeB, evolutional Node B) is not limited in the embodiment of the present invention.
Terminal in the embodiment of the present invention can be wireless terminal, wireless terminal can be directed to user provide voice and/Or the equipment of data connectivity, with wireless connecting function handheld device or be connected to radio modem otherProcessing equipment.Wireless terminal can be through wireless access network (for example, RAN, Radio Access Network) and one or moreCore net is communicated, and wireless terminal can be mobile terminal, such as mobile phone (or being " honeycomb " phone) and with movementThe computer of terminal, for example, it may be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device,They exchange language and/or data with wireless access network.For example, personal communication service (PCS, PersonalCommunication Service) phone, wireless phone, Session initiation Protocol (SIP) phone, wireless local loop (WLL,Wireless Local Loop) it stands, the equipment such as personal digital assistant (PDA, Personal Digital Assistant).
The embodiment of the present invention is described in further detail with reference to the accompanying drawings of the specification.It should be appreciated that described hereinEmbodiment only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
In the embodiment of the present invention one, a kind of motion management method is provided, as shown in figure 3, this method is applied to intensivelyIn network, the connection access of the control plane of terminal is the first base station and the user plane of the terminal of the terminal serviceIt connects the second base station of access source (currently providing the second base station of server for the terminal), this method comprises the following steps:
S31, LSC determine that the terminal needs to switch after determining switching that terminal needs to carry out user plane pathThe second base station of target arrived, second base station of target for switching after provide the second base station of service for the terminal.
Specifically, by the switching of the user plane of LSC triggering terminal, and execute handover decisions in dense network, i.e., byLSC judges whether terminal carries out the switching of user plane, and determines the second base station of target that the terminal is switched to.
The user plane of the terminal is switched to second base station of target, the source from the second base station of source by S32, LSCSecond base station for switching before provide the second base station of service for the terminal.
Specifically, being the handoff procedure that terminal executes user plane by LSC in dense network.
In the embodiment of the present invention, in dense network, LSC after determining switching that terminal needs to carry out user plane,It determines the second base station of target that the terminal needs to be switched to, and the user plane of the terminal is cut from second base station of sourceSecond base station of target is changed to, so that the handoff procedure of the user plane in dense network by LSC controlling terminal is realized,Provide it is a kind of by LSC control dense network under terminal mobility management mechanism.
As a kind of possible implementation, LSC determines that the terminal needs to carry out the switching of user plane in S31,Include:
After LSC receives the first message of first base station transmission, determine that the terminal needs to carry out cutting for user planeIt changes, wherein include the identification information of at least one the second base station in first request message.
In which, LSC determines that the terminal needs to carry out user after the first message for receiving first base station transmissionThe switching of plane.Specifically: terminal can measure the signal of the second base station around, and to first base station reporting measurement reportIt accuses；First base station is according to the switching of the signal strength and network configuration of the second base station of the terminal surrounding for including in measurement reportStrategy judges whether the switching for the user plane for needing to be implemented the terminal, is determining the user plane for needing to be implemented the terminalWhen switching, switching request (i.e. first message) is sent to LSC, includes the mark of at least one the second base station in the switching request messageKnow information, wherein the identification information of at least one second base station is that first base station is tentatively according to the measurement report of the terminalThe identification information for the second base station that the terminal of terminal selection can be switched to；LSC is receiving cutting for first base station transmissionAfter changing request, determine that the terminal needs to carry out the switching of user plane.
Under which, LSC determines the second base station of target that the terminal needs to be switched in S31, comprising:
LSC determines the terminal from corresponding second base station of identification information for including in first request messageThe second base station of target for needing to be switched to.
Specifically, LSC is according to Network status, corresponding second base of the identification information for including from first request messageIn standing, suitable the second base station of target is selected for the terminal.Wherein, Network status include but is not limited in following information extremelyFew one kind: UE current signal strength, the length of back haul link (backhaul) link, the load state of each base station and ability etc.Information.
As alternatively possible implementation, LSC determines that the terminal needs to carry out cutting for user plane in S31It changes, comprising:
After LSC receives the measurement report that the first base station is sent, determine that the terminal needs to carry out user planeSwitching, wherein the measurement report be reported to after being measured by the terminal to the second base station around itself it is describedFirst base station.
Specifically, measurement report and switchover policy of the LSC according to terminal, judge whether that the user for needing to be implemented the terminal is flatThe switching in face, at this point, the measurement report after receiving the measurement report that terminal reports, is directly sent to LSC by first base station,Decision is carried out by LSC, i.e. LSC judges whether to need to be implemented the switching of the user plane of the terminal based on measurement report.
Under which, LSC determines the second base station of target that the terminal needs to be switched to, comprising: LSC is according to the measurementThe second base station of target that the terminal needs to be switched to is determined in report.
Specifically, LSC according to the measurement report, in conjunction with Network status, selects suitable target second for the terminalBase station.
Based on any of the above-described embodiment, in an implementation, LSC is by the user plane of the terminal from the source second in S32Base station is switched to second base station of target, including following two mode:
Mode 1, the parameter information that the first user plane access between LDC and the second base station of target is generated by LSC, firstThe data transmission path in user face of the user plane access between the second base station LDC and target, and notified respectively to LDC and meshThe second base station is marked, the user plane of the terminal is switched to second base station of target from second base station of source to realize.Specifically:
LSC generates the parameter information of the first user plane access between LDC and the second base station of the target；
LSC sends second message to second base station of target, to request second base station of target for the terminal pointWith resource needed for user's plane data transfer and the first user plane access is established, includes institute in the second messageState parameter information；And LSC sends third message to the LDC, it is logical to request the LDC to establish first user planeRoad includes the parameter information in the third message.
It optionally, in the second message further include the second community group of the second base station of target covering under whichThe configuration information of (Secondary Cell Group, SCG).
Under which, optionally, networking mode is different, and the parameter information that LSC is generated is also different, specifically includes followingThree kinds:
If 1, networking mode is the mobile radio communication based on tunnel, the parameter information includes first user planeThe Tunnel End Point Identifier of the second base station of the Tunnel End Point Identifier of LDC in access and the target.
If 2, networking mode is IP networking mode, the parameter information includes the road IP of the first user plane accessBy information.
Wherein, ip routing information is the next-hop routing iinformation of second base station of target and LDC.
If 3, networking mode is software defined network, the parameter information includes the first user plane accessSDN flow table configuration information.
It wherein, include packet header match information, the information for forwarding port etc. in flow table configuration information.
Under which, in an implementation, after LSC sends second message to second base station of target, this method further include:LSC receives the response message that second base station of target returns, and the terminal is completed with determination second base station of targetPreparation before access.
Further, after LSC receives the response message that second base station of target returns, this method further include:
LSC sends the 8th message to the first base station, to notify the second base station of target described in the first base station completeAt the preparation before terminal access.
Correspondingly, first base station, after the 8th message for receiving LSC transmission, Xiang Suoshu terminal sends radio resource controlSystem reconfigures (RRC re-configuation；Radio Resource Control, RRC) request, with notify the terminal intoRow RRC is reconfigured.After the terminal receives the RRC re-configuation request of first base station transmission, it is synchronized to describedThe second base station of target.
In an implementation, after LDC receives the third message that LSC is sent, believed according to the parameter for including in the third messageBreath, establishes the first user plane access.Further, LDC sends confirmation message to LSC, to notify LDC described in LSC builtFound the first user plane access.Optionally, LDC sends end marker (end of identification) data packet to the second base station of source.
Further, after LSC sends third message to LDC, this method further include:
LSC receives the confirmation message of LDC return, to determine that it is logical that first user plane has been established in LDC described in LSCRoad.
Under which, after LSC sends third message to LDC, this method further include: LSC is sent out to second base station of sourceResource release request is sent, to request second base station of source to discharge interface-free resources and the second base station of the source and the institute of the terminalState the second user plane access between LDC.Wherein, user of the second user plane access between the second base station LDC and sourceThe data transmission path in face.
Correspondingly, discharging eating dishes without rice or wine for the terminal after second base station of source receives the resource release request that LSC is sentResource.
Optionally, the end that second base station of source receives the resource release request of LSC transmission and LDC is sentAfter marker data packet, confirms that the downlink data packet of the UE of caching is all transmitted to second base station of target, then dischargeThe interface-free resources of the terminal and the second user plane access.
Mode 2 generates the first user plane between the second base station LDC and target by LDC and the second base station of target respectivelyThe Tunnel End Point Identifier of the second base station of Tunnel End Point Identifier and target of the LDC of access, then notified respectively by LSC to LDC and meshThe second base station is marked, the user plane of the terminal is switched to second base station of target from second base station of source to realize.Specifically:
LSC sends the 4th message to second base station of target, to request second base station of target to generate the targetThe Tunnel End Point Identifier of second base station；And LSC sends the 5th message to the LDC, to request the LDC to generate the LDCTunnel End Point Identifier；
LSC is after the Tunnel End Point Identifier for receiving the LDC that the LDC is returned, the second base station of Xiang Suoshu target hairThe 6th message is sent, is described in the terminal distribution user plane data transfer resource and foundation to request second base station of targetFirst user plane access includes the Tunnel End Point Identifier of the LDC in the 6th message；And LSC receive it is describedAfter the Tunnel End Point Identifier for the second base station of the target that the second base station of target returns, Xiang Suoshu LDC sends the 7th message, to askIt asks the LDC to establish the first user plane access, includes the tunnel end of second base station of target in the 7th messagePoint identification.
Which is especially suitable for the second base station of source and the second base station of target is the scene of the small base station of tradition.
Under which, after LSC sends the 4th message to second base station of target, this method further include:
The LSC receives the response message that second base station of target returns, with determination second base station of targetPreparation before completing the terminal access.
Further, after the LSC receives the response message that second base station of target returns, this method further include:
LSC sends the 8th message to the first base station, to notify the second base station of target described in the first base station completeAt the preparation before terminal access.
Under which, after LSC sends the 5th message to LDC, the method also includes:
LSC receives the confirmation message of LDC return, to determine that it is logical that first user plane has been established in LDC described in LSCRoad.
Under which, after LSC sends the 5th message to LDC, the method also includes:
LSC sends resource release request to second base station of source, to request second base station of source to discharge the terminalInterface-free resources and the second base station of the source and the LDC between second user plane access.
Under dense network scene, mobile management is other than the switching of the user plane of above-mentioned terminal, further includes: terminalThe switching for controlling plane, due to controlling the separation of plane and user plane, the contextual information of first base station Maintenance free terminal(such as mark, QoS, Tunnel End Point Identifier, address of terminal of carrying etc.), can be by the upper of the LSC maintenance terminal of control planeContext information need to only complete the switching of signaling connection.Target first base station is first led to after completing to establish signaling connection with terminalThe first base station for knowing that LSC currently provides service for the terminal changes, so that LSC updates the contextual information of the terminal；SoRequest source first base station discharges eat dishes without rice or wine connection and the second user plane access between the second base station of the source and the LDC afterwards,To complete the switching of the control plane of the terminal.
Based on any of the above-described embodiment, under dense network scene, mobile management further includes determining each second base stationTo the most short transmission path of LDC, to improve the capacity of access net, the utilization of system passback (backhaul) link circuit resource is improvedRate.It is specific as follows:
LSC determines that the network topology structure of the user plane of dense network changes；
LSC updates the network topology structure of the user plane of dense network, and determines each second base station to the LDCMost short transmission path；
LSC each of will determine the second base station to the most short transmission path of the LDC, notify to corresponding second baseIt stands.
Since the addition of the second base station in access net has dynamic and randomness, the Planning Net that network can not be staticLocation.In addition, accessing the movement of terminal in net, the load dynamic change of backhaul link in access net, therefore, user will lead toThe network topology of plane is dynamic change.In order to improve the capacity of access net, that improves backhaul link circuit resource utilizes effectRate, network-based control plane is required to the variation of the network topology of perception user plane, as shown in figure 4, specifically including followingScene:
One, access net in increase newly the second base station: the second newly-increased base station by the connection state of its user plane by with itsThe first base station of connection notifies LSC, updates user's torus network topology by LSC.
Under which, LSC is after receiving the link information of user plane for the second base station newly accessed, according to described newThe link information of the user plane of second base station of access, updates the network topology structure.
Two, Backhaul link change: when the situation of the coupled backhaul link of the second base station monitors, at certainWhen link circuit condition changes, such as the load of newly-increased link or link reaches threshold value, and the second base station passes through control planeThe variation of user plane link is sent to LSC by signaling connection, and LSC updates user's torus network topology.
Under which, LSC after receiving the updated user face link information of any second base station, according to it is described moreUser face link information after new, updates the network topology structure.
Three, small station is removed in access net: after LSC perceives the removal of the second base station, updating user's torus network topology.
Under which, the LSC determine any second base station from dense network remove after, update the network and open upFlutter structure.
It can be seen that LSC from above-mentioned three kinds of scenes to be responsible for establishing and updating the network topology structure of user plane, LSC rootAccording to the link-state information that the second base station of each of access network reports, building and maintenance user plane network topology structure.Specifically, LSC is responsible for the shortest path established between LDC and each second base station, solution is first passed through using LDC as the most your pupil on vertexCheng Shu, can obtain LDC to each vertex (i.e. each second base station) shortest path, such as use Pu Limu (prim) algorithm solve；SoLSC generates the route table items on each second base station according to the shortest path acquired afterwards；It is given birth to finally, LSC is sent to each second base stationAt route table items so that each second base station learns and installs the route table items, to complete the foundation of link.Further, when withWhen the network topology of family plane changes, LSC needs to update to compare original most your pupil using LDC as the minimum spanning tree of rootCheng Shu, LSC carry out the update of the route table items on related second base station, thus be accomplished to LDC to each second base station shortest pathThe update of IP link on diameter.
Based on the same inventive concept, in the embodiment of the present invention two, a kind of motion management method is provided, is applied to intensiveNetwork, the connection access of the control plane of terminal are the first base station of the terminal service and the company of the user plane of the terminalThe second base station of access source, as shown in figure 5, this method comprises:
S51, LDC receive the third message that the LSC is sent, wherein the third message is for requesting the LDC to buildVertical the first user plane access the second base station of target between, second base station of target is provides service for terminal after switchingThe second base station；
S52, LDC establish the first user plane access between the second base station of the target according to the third message.
As a kind of optional implementation, in the third message include the LDC establish with the second base station of target itBetween the first user plane access parameter information, S52 specifically: LDC establishes first user according to the parameter informationPlane access.
Wherein, the parameter information in the third message is referring to the associated description in the embodiment of the present invention one.
As another optional implementation, before S51, further includes: LDC receives the LSC is sent the 5th and disappearsAfter breath, the Tunnel End Point Identifier of the LDC in the first user plane access is generated；
Correspondingly, the Tunnel End Point Identifier for the second base station of the target for including in the third message, S52 specifically:LDC is established and the target the according to the Tunnel End Point Identifier of the second base station of Tunnel End Point Identifier and the target of the LDCThe first user plane access between two base stations.
Based on any of the above-described embodiment, LDC establish and the second base station of the target between the first user plane access itAfterwards, this method further include:
LDC is sent to the second base station of source terminates label end marker, so that the second base station of the source will not transmit downRow data are forwarded to second base station of target, wherein second base station of source is second base at place before terminal switchingIt stands.
Based on any of the above-described embodiment, LDC establish and the second base station of the target between the first user plane access itAfterwards, this method further include:
LDC returns to confirmation message to the LSC, to notify that it is logical that first user plane has been established in LDC described in the LSCRoad.
Based on the same inventive concept, in the embodiment of the present invention three, a kind of motion management method is provided, is applied to intensiveNetwork, the connection access of the control plane of terminal are the first base station of the terminal service and the company of the user plane of the terminalThe second base station of access source, as shown in fig. 6, this method comprises:
S61, the second base station of target receive the second message that the LSC is sent, wherein second base station of target is to cutThe second base station of service is provided after changing for the terminal；
S62, the second base station of target are according to the second message, for needed for terminal distribution user plane data transmissionResource simultaneously establishes the first user plane access between LDC.
As a kind of optional implementation, the LDC for including in the second message is established and the second base station of targetBetween the first user plane access parameter information, the second base station of target establishes described according to the second message in S62One user plane access, specifically: the first user plane access is established according to the parameter information in the second base station of target.
Wherein, the parameter information is referring to the associated description in the embodiment of the present invention one.
It include described in the first user plane access as a kind of optional implementation, in the second messageThe Tunnel End Point Identifier of LDC, the first user plane access is established according to the second message in the second base station of target in S62,Specifically: the tunnel for the second base station of the target in the first user plane access that the second base station of target is generated according to itselfThe Tunnel End Point Identifier of road Endpoint ID and the LDC establishes the first user plane access.
Correspondingly, before S61, this method further include: the second base station of target receives the 4th message that the LSC is sent,4th message generates the second base station of the target in the first user plane access for the second base station of request targetTunnel End Point Identifier；The second base station of target generates the tunnel end of the second base station of the target of the first user plane accessPoint identification.
It optionally, in second message further include the second community of the second base station of target covering based on any of the above-described embodimentThe configuration information of group SCG.
Specifically, configuration information of the second base station of target according to the SCG in second message, flat for the terminal distribution userResource needed for face data transmission.
Optionally, institute is transmitted according to the second message for the terminal distribution user plane data in the second base station of targetAfter the resource needed, this method further include:
The second base station of target is to LSC returning response message, to notify the second base station of target described in LSC that the terminal is completedPreparation before access.
It is flat to the control of the terminal in mobile management provided in an embodiment of the present invention below by three specific embodimentsThe handoff procedure of face and user plane is described in detail.
In the embodiment of the present invention four, a kind of process of the control plane switching of terminal is provided, due to the letter of user planeBreath is by LSC centralized maintenance, therefore switching flow needs LSC control.As shown in fig. 7, comprises following process:
701.UE carries out the signal strength measurement of surrounding first base station, and sends to source first base station (Source MeNB)Measurement report.
702. source MeNB need to be implemented end according to the signal strength of first base station around UE and the switchover policy of network, judgementThe switching of the control plane at end.Source MeNB determine need to be implemented the switching of control plane of terminal after, based on selection switchThe target MeNB arrived, and switching request (HO Request is sent to target MeNB (Target MeNB)；HandOver, HO).
After 703. target MeNB receive the switching request of source MeNB transmission, the UE context of the terminal is established(Context), and to source MeNB Handover Request Acknowledge (HO Request Ack) is returned.
After 704. source MeNB receive the Handover Request Acknowledge of target MeNB transmission, RRC re- is sent to terminalConfiguration request, to notify UE carries out RRC to reconfigure.
705.UE is to target MeNB initiating random access procedure, to access target MeNB.
706. after completing the switching of control plane of terminal, and target MeNB sends switching notice (HO to LSCNotification), to notify the LSC terminal that the switching of control plane is completed.
707. target MeNB send Connection Release (Connection Release) to source MeNB, so that source MeNB dischargesThe connection of the control plane of the terminal.
708. source MeNB discharge the connection of the control plane of the terminal.
In the embodiment of the present invention five, a kind of process of the user plane switching of terminal is provided, as shown in figure 8, including such asLower process:
801.UE carry out around the second base station (SeNB) signal strength measurement, and to currently be the UE service firstBase station (MeNB) sends measurement report.
802.MeNB needs to be implemented the use of terminal according to the signal strength of SeNB around UE and the switchover policy of network, judgementThe switching of family plane, MeNB send SeNB modification request (SeNB modification Required) to LSC, i.e., first disappearsBreath, the SeNB modify the identification information in request including at least one target SeNB.
803.LSC sends SeNB to target SeNB and increases request (SeNB Addition Request), which increasesIt include parameter information and the configuration information of SCG in request.
Specifically, the identification information that LSC includes from SeNB modification request corresponds in SeNB, determines target SeNB, LSCThe parameter information of the first user plane access between LDC and target SeNB is generated, and sends SeNB increase to target SeNB and asks(SeNB Addition Request), i.e. second message are asked, it includes the parameter information and SCG in request which, which increases,Configuration information.Wherein, the configuration information of SCG includes at least one of following information: security algorithm, the letter such as ability of UEBreath.
804. target SeNB are to LSC returning response message, before notifying LSC target SeNB that the terminal access is completedPreparation.
Specifically, after target SeNB receives SeNB Addition Request, for UE distributing user plane data transfer instituteThe resource needed；Target SeNB is to LSC returning response message.
Wherein, in this step, SeNB saves the parameter information for including in SeNB Addition Request.
805.LSC sends SeNB modification confirmation (SeNB modification confirm) message to MeNB, i.e., the 6th disappearsBreath, with the preparation before notifying MeNB target SeNB to complete UE access.
806.LSC is to the more newer command of LDC transmitting path (Path update command), i.e. third message, wherein instituteStating includes parameter information generated in routing update order.
807.LDC sends end marker to source SeNB.
Specifically, LDC information based on the parameters received establishes the first user plane access between target SeNB, andEnd marker is sent to source SeNB.
After 808. source SeNB receive end marker, execute data forwarding (Data forwarding).
809.LDC confirms (Path update command Ack) to the more newer command of LSC transmitting path, i.e. confirmation message.
In the present embodiment, do not limit step 807 and step 809 executes sequence, can execute step 807, then execute stepRapid 809；Step 809 can also be executed, then executes step 807；It may also be performed simultaneously step 807 and 809.
810.MeNB sends RRC re-configuration request to UE, to notify UE carries out RRC to reconfigure.
811.UE initiates random access (Random Access) process, to be synchronized to target SeNB.
812.LSC sends release request (Release Request) to source SeNB, to notify source SeNB to discharge interface-free resourcesSecond user plane access between source SeNB and LDC.
813. source SeNB execute RRC and discharge process, to discharge second between the interface-free resources of UE and source SeNB and LDCUser plane access.
Specifically, source SeNB executes RRC and discharges process after acknowledging receipt of end marker and having forwarded downlink data,To discharge the second user plane access between the interface-free resources of UE and source SeNB and LDC.
In the embodiment of the present invention six, the process of the user plane switching of another terminal is provided, as shown in figure 9, includingFollowing process:
901.UE carries out wireless signal strength (Radio Signal Strength, RSS) measurement to the second base station around.
The second base station in the present embodiment can be small-cell base station (Small Cell Base Station, SC BS).
902.UE sends measurement report to the first base station (service Mcro BS) currently serviced for the UE.
The measurement report is reported to LSC by 903. service Mcro BS.
Specifically, service Mcro BS sends first message to LSC, includes the measurement report in the first message.
904.LSC executes handover decisions.
Specifically, LSC judges the user plane for needing to be implemented terminal according to the switchover policy of the measurement report and networkSwitching.
905.LSC sends switching request (Handover Request) to target SC BS, i.e. second message, switching is askedIt include the configuration information of the parameter information and SCG in asking.
906. target SC BS return to Handover Request Acknowledge (Handover Request Ack) to LSC, to notify LSC meshThe preparation before the terminal access is completed in mark SC BS.
It specifically, is UE points according to the configuration information of the SCG after target SC BS receives the switching request that LSC is sentWith resource needed for user's plane data transfer, and according to the parameter information, first established between target SC BS is usedFamily plane access.
907.LSC sends switching notice (Handover Notify) to service Macro BS, to notify UE to execute switchingOrder.
908.LSC is to the more newer command of LDC transmitting path (Path update command), i.e. third message, wherein instituteStating includes parameter information generated in routing update order.
In the present embodiment, do not limit step 907 and step 908 executes sequence, can execute step 907, then execute stepRapid 908；Step 908 can also be executed, then executes step 907；It may also be performed simultaneously step 907 and 908.
909.LDC sends end marker to source SC BS.
Specifically, after LDC receives the routing update order that LSC is sent, include according in the routing update orderParameter information establishes the first user plane access with target SC BS, and sends end marker to source SC BS.
After 910. source SC BS receive end marker, execute data forwarding (Data forwarding).
911.LDC confirms (Path update command Ack) to the more newer command of LSC transmitting path, i.e. confirmation message.
912. service Macro BS send RRC connection reconfiguration to UE and set (RRC Connection Reconfiguation)Message, to notify terminal to access target SC BS.
Specifically, service Macro BS sends RRC connection reconfiguration to UE and sets after the switching notice for receiving LSC transmissionMessage.
913.UE returns to RRC connection reconfiguration to service Macro BS and sets completion (RRC ConnectionReconfiguation Complete) message.
914.UE initiates random access (Random Access) process.
Specifically, UE is after receiving source SC BS data forwarding, initiating random access procedure.
915.UE is synchronized to target SC BS.
916. target SC BS and LDC complete user face path setting, can carry out data packet transmission.
917. target SC BS carry out data buffer storage.
918. service Macro BS return to switching to LSC and complete (Handover Complete).
919. target SC BS and UE complete establishment of connection of eating dishes without rice or wine, and can carry out data packet transmission.
920.LSC sends release request (Release Request) to source SC BS, to notify source SC BS that release is eated dishes without rice or wineSecond user plane access between resource and the second base station of source and LDC.
921. source SC BS execute RRC and discharge process, to discharge between the interface-free resources of UE and the second base station of source and LDCSecond user plane access.
Above method process flow can realize that the software program can store in storage medium with software program, whenWhen the software program of storage is called, above method step is executed.
Based on the same inventive concept, in the embodiment of the present invention seven, a kind of local service center LSC is provided, the LSC is answeredFor dense network, the control plane of the LSC and first base station composition dense network, local data center LDC and the second baseIt stands and forms the user plane of dense network, first base station and institute of the connection access of the control plane of terminal for the terminal serviceConnection access the second base station of source of the user plane of terminal is stated, as shown in Figure 10, the LSC includes:
Decision-making module 1001, for determining the end after determining switching that terminal needs to carry out user plane pathEnd needs the second base station of target for being switched to, and second base station of target is provides the second base of service after switching for the terminalIt stands；
Switching module 1002, for the user plane path of the terminal to be switched to the target from the second base station of sourceTwo base stations, second base station of source for switching before provide the second base station of service for the terminal.
Optionally, the decision-making module 1001 is specifically used for:
After receiving the first message that the first base station is sent, determine that the terminal needs to carry out cutting for user planeIt changes, wherein include the identification information of at least one the second base station in the first message；The mark for including from the first messageKnow in corresponding second base station of information, determines the second base station of target that the terminal needs to be switched to；
Or
After receiving the measurement report that the first base station is sent, determine that the terminal needs to carry out cutting for user planeIt changes, wherein the measurement report is to be reported to described first after being measured by the terminal to the second base station around itselfBase station；According to the measurement report, the second base station of target that the terminal needs to be switched to is determined.
As a kind of optional implementation, the switching module 1001 is specifically used for:
Generate the parameter information of the first user plane access between the second base station the LDC and the target；
Second message is sent to second base station of target, to request second base station of target for terminal distribution useResource needed for the plane data transfer of family and the first user plane access is established, includes the ginseng in the second messageNumber information；And third message is sent to the LDC, it is described to request the LDC to establish the first user plane accessIt include the parameter information in third message.
As another optional implementation, the switching module 1001 is specifically used for:
The 4th message is sent to second base station of target, to request second base station of target to generate the LDC and instituteState the Tunnel End Point Identifier of the second base station of the target in the first user plane access between the second base station of target；And toThe LDC sends the 5th message, to request the LDC to generate the tunnel end of the LDC in the first user plane accessPoint identification；
After the Tunnel End Point Identifier for receiving the LDC that the LDC is returned, the second base station of Xiang Suoshu target sends theTwo message, to request second base station of target to be the terminal distribution user plane data transfer resource and establish described firstUser plane access includes the Tunnel End Point Identifier of the LDC in the second message；And receiving the target secondAfter the Tunnel End Point Identifier for the second base station of the target that base station returns, Xiang Suoshu LDC sends third message, described in requestLDC establishes the first user plane access, includes the Tunnel End Point Identifier of second base station of target in the third message.
Optionally, the switching module 1002 is also used to:
Resource release request is sent to second base station of source, to request second base station of source to discharge the sky of the terminalSecond user plane access between mouth resource and the second base station of the source and the LDC.
Based on any of the above-described embodiment, optionally, the LSC further include:
Network topology structure maintenance module 1003, the network topology structure hair of the user plane for determining dense networkChanging；The network topology structure of the user plane of dense network is updated, and determines each second base station to the LDC mostShort transmission path；It each of will determine the second base station to the most short transmission path of the LDC, notify to corresponding second baseIt stands.
Optionally, the network topology structure maintenance module 1003 is specifically used for:
After receiving the link information of user plane for the second base station newly accessed, according to the second base of the new accessThe link information for the user plane stood updates the network topology structure；Or
After receiving the updated user face link information of any second base station, according to the updated user faceLink information updates the network topology structure；Or
Determine any second base station from dense network remove after, update the network topology structure.
Based on the same inventive concept, in the embodiment of the present invention eight, a kind of local data center LDC, the side LDC are providedMethod is applied to dense network, wherein the user plane of the LDC and the second base station composition dense network, local service center LSCConnection access with the control plane of first base station composition dense network, the control plane of terminal is the first of the terminal serviceThe connection of the user plane of base station and the terminal accesses the second base station of source, and as shown in figure 11, the LDC includes:
Receiving module 1101, the third message sent for receiving the LSC, wherein the third message is for askingThe first user plane access between the LDC foundation and the second base station of target is sought, second base station of target, which is after switching, isTerminal provides the second base station of service；
Processing module 1102, for establishing the first user plane access according to the third message.
It optionally, include the parameter information of the first user plane access in the third message；The processing module1102 are specifically used for: according to the parameter information, establishing the first user plane access；
Or
The tunnel end for the second base station of the target in the first user plane access for including in the third messagePoint identification, the processing module 1102 are specifically used for: the tunnel of the LDC in the first user plane access generated according to itselfThe Tunnel End Point Identifier of the second base station of road Endpoint ID and the target, first established between the second base station of the target are usedFamily plane access.
Optionally, the receiving module 1101 is also used to: receiving the 5th message that the LSC is sent；
The processing module 1102 is also used to: generating the endpoint of a tunnel mark of the LDC of the first user plane accessKnow；The Tunnel End Point Identifier of the LDC is sent to the LSC.
Based on any of the above-described embodiment, the processing module 1102 is also used to:
Sending to the second base station of source terminates label end marker, so that the lower line number that the second base station of the source will not transmittedAccording to being forwarded to second base station of target, wherein second base station of source is the second base station where before terminal switching.
Based on the same inventive concept, in the embodiment of the present invention nine, another local service center LSC is provided, it is describedLSC is applied to dense network, the control plane of the LSC and first base station composition dense network, local data center LDC and theTwo base stations form the user plane of dense network, and the connection access of the control plane of terminal is the first base station of the terminal serviceAnd the user plane of the terminal connection access the second base station of source, as shown in figure 12, the LSC include: input interface 1201,Output interface 1202, processor 1203 and memory 1204, in which:
Processor 1203 executes following process for reading the program in memory 1204:
After determining the switching that terminal needs to carry out user plane path, target that the terminal needs to be switched to the is determinedTwo base stations, second base station of target for switching after provide the second base station of service for the terminal；By the user of the terminalPanel path is switched to second base station of target from the second base station of source, and it is that the terminal mentions that second base station of source, which is before switching,For the second base station of service；
Input interface 1201 is used to receive data and signaling under the control of processor 1203；
Output interface 1202 is used to send data and signaling under the control of processor 1203.
In Figure 12, bus architecture, bus may include the bus and bridge of any number of interconnection, bus will include byThe various circuits for the memory that the one or more processors and memory 1204 that reason device 1203 represents represent link together.AlwaysLine can also link together various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like, thisIt is all a bit it is known in the art, therefore, it will not be further described herein.Input interface 1201 and output interface1202 provide the unit for communicating over a transmission medium with various other devices.
Processor 1203 is responsible for management bus and common processing, can also provide various functions, including timing, periphery connectsMouthful, voltage adjusting, power management and other control functions.And memory 1204 can be used for storage processor 1204 and holdUsed data when row operation.
Optionally, processor 1203 can be CPU (centre buries device), ASIC (Application SpecificIntegrated Circuit, specific integrated circuit), (Field-Programmable Gate Array, scene can compile FPGAJourney gate array) or CPLD (Complex Programmable Logic Device, Complex Programmable Logic Devices).
Optionally, processor reads the program in memory, also executes following process:
After receiving the first message that the first base station is sent by input interface 1201, the terminal needs are determinedCarry out the switching of user plane, wherein include the identification information of at least one the second base station in the first message；From describedIn corresponding second base station of the identification information for including in one message, the second base of target that the terminal needs to be switched to is determinedIt stands；
Or
After receiving the measurement report that the first base station is sent by input interface 1201, the terminal needs are determinedCarry out the switching of user plane, wherein the measurement report is to be measured by the terminal to the second base station around itselfIt is reported to the first base station afterwards；According to the measurement report, the second base of target that the terminal needs to be switched to is determinedIt stands.
As a kind of optional implementation, processor 1203 reads the program in memory 1204, specifically executes followingProcess:
Generate the parameter information of the first user plane access between the second base station the LDC and the target；
Second message is sent to second base station of target by output interface 1202, to request second base station of targetFor resource needed for terminal distribution user plane data transmission and the first user plane access is established, described secondIt include the parameter information in message；And third message is sent to the LDC by output interface 1202, described in requestLDC establishes the first user plane access, includes the parameter information in the third message.
As another optional implementation, processor 1203 reads the program in memory 1204, under specific executionColumn process:
The 4th message is sent to second base station of target by output interface 1202, to request second base station of targetGenerate the tunnel of the second base station of the target in the first user plane access between the second base station the LDC and the targetEndpoint ID；And the 5th message is sent to the LDC by output interface 1202, to request the LDC to generate described firstThe Tunnel End Point Identifier of the LDC in user plane access；
After the Tunnel End Point Identifier for receiving the LDC that the LDC is returned by input interface 1201, connect by outputMouth 1202 sends second message to second base station of target, to request second base station of target for the terminal distribution userIt plane data transfer resource and establishes the first user plane access, includes the tunnel end of the LDC in the second messagePoint identification；And the tunnel for the second base station of the target that second base station of target returns is received by input interface 1201After Endpoint ID, third message is sent to the LDC by output interface 1202, is used with requesting the LDC to establish described firstFamily plane access includes the Tunnel End Point Identifier of second base station of target in the third message.
Optionally, processor 1203 reads the program in memory 1204, also executes following process:
Resource release request is sent to second base station of source by output interface 1202, to request second base station of sourceDischarge the second user plane access between the interface-free resources of the terminal and the second base station of the source and the LDC.
Based on any of the above-described embodiment, optionally, processor 1203 reads the program in memory 1204, also executes followingProcess:
Determine that the network topology structure of the user plane of dense network changes；Update the user plane of dense networkNetwork topology structure, and determine each second base station to the most short transmission path of the LDC；It each of will determine secondBase station is notified by output interface to corresponding second base station to the most short transmission path of the LDC.
Optionally, processor 1203 reads the program in memory 1204, specifically executes following process:
After the link information for the user plane for receiving the second base station newly accessed by input interface 1201, according to instituteThe link information for stating the user plane for the second base station newly accessed, updates the network topology structure；Or
After receiving the updated user face link information of any second base station by input interface 1201, according to instituteUpdated user face link information is stated, the network topology structure is updated；Or
Determine any second base station from dense network remove after, update the network topology structure.
Based on the same inventive concept, in the embodiment of the present invention ten, a kind of local data center LDC, the side LDC are providedMethod is applied to dense network, wherein the user plane of the LDC and the second base station composition dense network, local service center LSCConnection access with the control plane of first base station composition dense network, the control plane of terminal is the first of the terminal serviceThe connection of the user plane of base station and the terminal accesses the second base station of source, and as shown in figure 13, the LDC includes: input interface1301, output interface 1302, processor 1303 and memory 1304, in which:
Processor 1303 executes following process for reading the program in memory 1304:
The third message that the LSC is sent is received by input interface 1301, wherein the third message is for requestingThe first user plane access between the LDC foundation and the second base station of target, it is eventually that second base station of target, which is after switching,End provides the second base station of service；According to the third message, the first user plane access is established；
Input interface 1301 is used to receive data and signaling under the control of processor 1303；
Output interface 1302 is used to send data and signaling under the control of processor 1303.
In Figure 13, bus architecture, bus may include the bus and bridge of any number of interconnection, bus will include byThe various circuits for the memory that the one or more processors and memory 1304 that reason device 1303 represents represent link together.AlwaysLine can also link together various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like, thisIt is all a bit it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Input connectsMouth 1301 and output interface 1302 provide the unit for communicating over a transmission medium with various other devices.
Processor 1303 is responsible for management bus and common processing, can also provide various functions, including timing, periphery connectsMouthful, voltage adjusting, power management and other control functions.And memory 1304 can be used for storage processor 1304 and holdUsed data when row operation.
Optionally, processor 1303 can be CPU, ASIC, FPGA or CPLD.
It optionally, include the parameter information of the first user plane access in the third message；Processor 1303 is readProgram in access to memory 1304 specifically executes following process: according to the parameter information, it is logical to establish first user planeRoad；
Or
The tunnel end for the second base station of the target in the first user plane access for including in the third messagePoint identification, processor 1303 read the program in memory 1304, specifically execute following process: described the generated according to itselfThe Tunnel End Point Identifier of the second base station of Tunnel End Point Identifier and the target of LDC in one user plane access, foundation and instituteState the first user plane access between the second base station of target.
Optionally, processor 1303 reads the program in memory 1304, also executes following process:
The 5th message that the LSC is sent is received by input interface 1301；Generate the first user plane accessThe LDC Tunnel End Point Identifier；The Tunnel End Point Identifier of the LDC is sent to the LSC.
Based on any of the above-described embodiment, processor 1303 reads the program in memory 1304, also executes following process:
Being sent by output interface 1302 to the second base station of source terminates label end marker, so that the second base station of the sourceThe downlink data not transmitted is forwarded to second base station of target, wherein second base station of source is before the terminal switchesSecond base station at place.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer programProduct.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present inventionApply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) producesThe form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program productFigure and/or block diagram describe.It should be understood that can be realized by computer program instructions each in flowchart and/or the block diagramThe combination of process and/or box in process and/or box and flowchart and/or the block diagram.It can provide these computersProcessor of the program instruction to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devicesTo generate a machine, so that generating use by the instruction that computer or the processor of other programmable data processing devices executeIn the dress for realizing the function of specifying in one or more flows of the flowchart and/or one or more blocks of the block diagramIt sets.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spyDetermine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram orThe function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that countingSeries of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer orThe instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram oneThe step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basicProperty concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted asIt selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the artMind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologiesWithin, then the present invention is also intended to include these modifications and variations.