Embodiment
The embodiment of the present invention is carried out after paging subscriber equipment at initiation service call or network side at subscriber equipment, determine the RRC of subscriber equipment is connected and is established on macro base station, whole DRB of chain of command are remained on to macro base station, the PDCP layer that whole DRB of user's face are corresponding remains on macro base station, and other layers except PDCP layer corresponding to the part or all of DRB of user's face are switched at least one home base stations, or the part or all of DRB of user's face is switched at least one home base stations, thereby reduced in the network architecture of E-UTRAN, when UE initiates service call or certain UE of network side paging, RRC disconnecting, switch information drop-out or UE to the number of times of the mobility problem appearance such as synchronization failure of target access, further alleviate the load of macrocell, improved whole network side throughput.
Wherein, the macro base station of the embodiment of the present invention is LTE macro base station; The home base stations of the embodiment of the present invention is Pico eNB (micro-base station) or Home eNB (Home eNodeB) or Relay (relaying) equipment etc. of LTE.
Preferably, in force, when access point switches, the PDCP of all DRB still remains on Macro eNB, does not change; When access point switches, the safe key of UE does not send variation in change process; User's face and chain of command need separated in, UE becomes the MAC physical arrangements for target access only to process the pattern of all or part DRB with target Local eNB, PHY is also configured to only process DRB related data accordingly.
The frequency of switching between Macro eNB community and Local eNB community in order to reduce UE, a kind of user's face network design mode separated with chain of command is introduced into.As shown in Figure 3, under which, when UE is in the region of only having Macro eNB community to cover, the chain of command of UE connects and user's face is all connected to Macro eNB; When UE moves to Macro eNB community and Local eNB community when overlapping covered, all or part of carrying of UE user's face is transferred to Local eNB, to obtain higher service transmission rate; Chain of command connection still remains on Macro eNB, to prevent that chain of command from connecting handoff failure and causing UE call drop.
In the situation that UE user's face is separated with chain of command, UE is connected to two or more eNB simultaneously.UE is connected with Local eNB with Macro simultaneously, obtains respectively chain of command and is connected with user's face.
The part carrying of user's face of UE is separated with chain of command.Such as: responsive to break period for voice-bearer etc., the user plane bearer of the little business of bandwidth demand is maintained to Macro eNB; Be used for carrying online etc. insensitive to interrupting time delay, the user plane bearer of the large business of bandwidth demand is maintained to Local eNB.
Under user's face and chain of command separation case, the protocol stack between UE and network as shown in Figure 4 and Figure 5.User's face eNB (Local eNB) of UE is for UE provides user plane data transfer function, and the rrc layer that it does not have with UE equity, can not carry out RRC control to UE; The chain of command eNB of UE (Macro eNB) provides chain of command transmission of messages function for UE, and in order to realize the carrying of RRC message and processing, chain of command eNB need to possess the user face protocol stack with UE equity; Because NAS message need to be by RRC message bearing, so the serving MME of UE is connected with the chain of command eNB of UE.
As a kind of enhancing, between UE and user's face eNB, may there is part RRC function, as UE can read the broadcast (eNB is transferred to the point-to-multipoint RRC message of a plurality of UE) that user's face eNB sends.
In order to support above-mentioned user's face framework separated with chain of command, the present invention adopts corresponding with it user face nodes changing method.
Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.
In declarative procedure below, first from the cooperation of network side and user equipment side, implement to describe, finally from the enforcement of network side and user equipment side, describe respectively, but this does not also mean that the two must coordinate enforcement, in fact, when network side and user equipment side, separate while implementing, also solved respectively in network side, the existing problem of user equipment side, when just the two is combined with, can obtain better technique effect.
As shown in Figure 6, the system that embodiment of the present invention business is set up comprises: macro base station 10 and subscriber equipment 20.
Macro base station 10, for subscriber equipment 20 being carried out after paging at initiation service call or network side at subscriber equipment 20, determines the RRC of subscriber equipment is connected and is established on macro base station, to subscriber equipment 20, sends RRC reconfiguration message;
Subscriber equipment 20, for initiating service call or receiving after the paging of network side, determine that on macro base station 10, setting up RRC connects, after the RRC reconfiguration message of receiving from macro base station 10, whole DRB of chain of command are remained on to macro base station, the PDCP layer that whole DRB of user's face are corresponding remains on macro base station, and other layers except PDCP layer corresponding to the part or all of DRB of user's face are switched at least one home base stations, or the part or all of DRB of user's face is switched at least one home base stations.
Wherein, if subscriber equipment 20 remains on macro base station by PDCP layer corresponding to whole DRB of user's face, and other layers except PDCP layer corresponding to the part or all of DRB of user's face are switched at least one home base stations, macro base station 10, when configuration parameter, only configures the parameter of other layers except PDCP layer;
Subscriber equipment 20 remains on macro base station by whole DRB of user's face, and macro base station 10, when configuration parameter, configures the parameter of all layers of DRB.
Preferably, before macro base station 10 sends RRC reconfiguration message to subscriber equipment, request message is set up in the carrying of the QOS information of the DRB of each the user's face that comprises from needs switching to the home base stations transmission that need to receive the DRB of user's face;
Accordingly, the system of the embodiment of the present invention also comprises at least one home base stations 30.
Home base stations 30, sets up request message for receiving from the carrying for subscriber equipment of macro base station 10, receives other layers except PDCP layer corresponding to part or all of Data Radio Bearer DRB of user's face.
Concrete, home base stations 30 is set up the QOS information of the DRB of each user's face that the needs that comprise in request message switch, other layers except PDCP layer corresponding to DRB of user's face that configuration is received according to carrying.
Home base stations 30 can also return to carrying to macro base station 10 and set up request response after receiving other layers except PDCP layer that the part or all of DRB of user's face is corresponding; Accordingly, macro base station 10 is set up after request response receiving from the carrying of home base stations, to subscriber equipment 20, sends RRC reconfiguration message.
Preferably, macro base station 10 can need to carry out chain of command and user's face lock out operation by explicit notification subscriber equipment 20 in RRC reconfiguration message.
Explicit notification can adopt bit-wise, such as " 1 " represents, need to carry out chain of command and user's face lock out operation, and " 0 " represents to carry out chain of command and user's face lock out operation.
Subscriber equipment 20, after the RRC reconfiguration message of receiving from macro base station, carries out simultaneous operation with receiving the home base stations of user's face of subscriber equipment 20, and after synchronous success, to macro base station 10, returns to RRC and reshuffled message.
Accordingly, macro base station 10 is receiving that the RRC from subscriber equipment 20 has reshuffled after message, and the DRB of the user's face that can receive for a home base stations is mapped to PDCP entity corresponding to this DRB on other layers that this DRB of home base stations 30 configuration is corresponding.
In force, the embodiment of the present invention can also be upgraded the DRB carrying of having set up on home base stations as required, and such as modification, increase, deletion etc., a minute situation illustrates below,
Situation one, modification.
Concrete, macro base station 10 is receiving that the E-RAB for subscriber equipment 20 from core net revises message, and after the DRB of the built vertical subscriber equipment 20 of home base stations 30 carrying, according to E-RAB, revise the definite DRB revising that needs of message and carry, to home base stations 20, send the bearing modification request message of the QOS information of the DRB carrying that comprises needs modification;
Accordingly, after the bearing modification request message of the QOS information that home base stations 30 carries at the DRB that comprises needs modification that receives macro base station 10, revise the configuration of corresponding DRB, and return to bearing modification response message to macro base station 10;
Macro base station 10, after the bearing modification response message of receiving from home base stations 30, sends RRC to subscriber equipment 20 and connects reconfiguration message, upgrades the configuration of corresponding DRB for notifying user equipment 20;
Subscriber equipment 20, according to the RRC reconfiguration message from macro base station of receiving, is revised the configuration of corresponding DRB.
Situation two, increase.
Macro base station 10 is receiving that the E-RAB for subscriber equipment 20 from core net sets up message, and after the initial context of macro base station 10 and the built vertical subscriber equipment 20 of home base stations 30, according to E-RAB, revise the definite DRB increasing that needs of message and carry, to home base stations 30, send the bearing modification request message of the QOS information of the DRB carrying that comprises needs foundation;
Accordingly, after the bearing modification request message of the QOS information that home base stations 30 carries at the DRB that comprises needs foundation that receives macro base station 10, set up corresponding DRB carrying, and return to bearing modification response message to macro base station 10;
Macro base station 10, after the bearing modification response message of receiving from home base stations 30, sends RRC to subscriber equipment 20 and connects reconfiguration message, upgrades the configuration of corresponding DRB for notifying user equipment 20;
Subscriber equipment 20, according to the RRC reconfiguration message from macro base station of receiving, is set up corresponding DRB carrying, such as setting up the parameter configuration of each layer of PDCP/RLC/MAC/PHY and the mapping relations of interlayer.
Wherein, E-UTRAN Radio Access Bearer has comprised the interface between DRB and E-UTRAN and S-GW, and DRB specially refers to the Data Radio Bearer of eating dishes without rice or wine.
Situation three, deletion carrying.
Macro base station 10 is receiving that the E-RAB for subscriber equipment 20 from core net deletes message, and after the initial context of macro base station 10 and home base stations 30 built vertical subscriber equipmenies, according to E-RAB, delete the definite DRB deleting that needs of message and carry, stand and to home base stations, send the bearing modification request message of the QOS information of the DRB carrying that comprises needs deletion;
Accordingly, home base stations 30, after the bearing modification request message of receiving from the QOS information that comprises the DRB carrying that needs delete of macro base station 10, is deleted corresponding DRB carrying, and is returned to deleting load-bearing response message to macro base station 10;
Macro base station 10, after the deleting load-bearing response message of receiving from home base stations 20, sends RRC to subscriber equipment 20 and connects reconfiguration message, upgrades the configuration of corresponding DRB for notifying user equipment;
Subscriber equipment 20, according to the RRC reconfiguration message from macro base station of receiving, is deleted corresponding DRB carrying.
All carryings of situation four, deletion.
Macro base station 10 is receiving that the E-RAB for subscriber equipment 20 from core net deletes message, and needing the E-RAB discharging is the last item E-RAB of home base stations 30, and macro base station 10 safeguards have after other E-RAB, to home base stations 30, send carrying release message, for notifying all carryings of home base stations 30 releasing user equipment, and state macro base station to subscriber equipment transmission RRC connection reconfiguration message, for notifying user equipment, upgrade the configuration of corresponding DRB;
Accordingly, home base stations 30, after the carrying release message of receiving from macro base station 10, is deleted all carryings of corresponding subscriber equipment 20;
Because transfer process completes, subscriber equipment 20 is deleted old carrying, discharges corresponding resource.
In force, the RRC of all right releasing user equipment of the embodiment of the present invention connects.
Concrete, macro base station 10 is after the customer equipment context release message for subscriber equipment 20 of receiving from core net, to home base stations 30, send the carrying release message of the sign that comprises the subscriber equipment that needs free context, and macro base station 10 sends RRC connection release messages to subscriber equipment 20, and to MME, send customer equipment context and discharge response message;
Accordingly, home base stations 30 is being received from needing comprising of macro base station 10 after the carrying release message of sign of subscriber equipment of free context, the context of releasing user equipment;
Subscriber equipment 20 after receiving RRC connection release message, discharge with macro base station 10 between RRC be connected;
MME is receiving that customer equipment context discharges after response message, by the resource of the core net of releasing user equipment 10, i.e. and deleting load-bearing order.
For above-mentioned situation, in force can RRC connect in reconfiguration message and by IE, indicate specifically and revise, delete or set up.
As shown in Figure 7, the subscriber equipment in the system that embodiment of the present invention business is set up comprises: the first determination module 700 and the first processing module 710.
The first determination module 700, connects for initiating service call or receiving after the paging of network side, determining to set up RRC on macro base station;
The first processing module 710, for after the RRC reconfiguration message of receiving from macro base station, whole DRB of chain of command are remained on to macro base station, the PDCP layer that whole DRB of user's face are corresponding remains on macro base station, and other layers except PDCP layer corresponding to the part or all of DRB of user's face are switched at least one home base stations, or the part or all of DRB of user's face is switched at least one home base stations.
Preferably, the first processing module 710, after the RRC reconfiguration message of receiving from macro base station, is carried out simultaneous operation with home base stations, and after synchronous success, to macro base station, returns to RRC and reshuffled message.
Preferably, the first processing module 710, according to the RRC reconfiguration message from macro base station of receiving, is upgraded the configuration of corresponding DRB.
As shown in Figure 8, the macro base station in the system that embodiment of the present invention business is set up comprises: the second determination module 800 and the second processing module 810.
The second determination module 800, for subscriber equipment being carried out after paging at initiation service call or network side at subscriber equipment, determines the RRC of subscriber equipment is connected and is established on macro base station;
The second processing module 810, for sending RRC reconfiguration message to subscriber equipment, be used to indicate subscriber equipment whole DRB of chain of command are remained on to macro base station, the PDCP layer that whole DRB of user's face are corresponding remains on macro base station, and other layers except PDCP layer corresponding to the part or all of DRB of user's face are switched at least one home base stations, or the part or all of DRB of user's face is switched at least one home base stations.
Preferably, before the second processing module 810 sends RRC reconfiguration message to subscriber equipment, request message is set up in the carrying of the QOS information of the DRB of each the user's face that comprises from needs switching to the home base stations transmission that need to receive the DRB of user's face.
Preferably, the second processing module 810 is set up request response in the carrying receiving from home base stations before sending RRC reconfiguration message to subscriber equipment.
Preferably, the second processing module 810 is after subscriber equipment sends RRC reconfiguration message, receiving that the RRC from subscriber equipment has reshuffled after message, the DRB of the user's face that can receive for a home base stations, is mapped to PDCP entity corresponding to this DRB on other layers that this DRB of home base stations configuration is corresponding.
Preferably, the second processing module 810 is after subscriber equipment sends RRC reconfiguration message, receiving that the E-RAB from core net revises message, and after the DRB of the built vertical subscriber equipment of home base stations carrying, according to E-RAB, revising message and determine the DRB carrying that need to revise; To home base stations, send the bearing modification request message of the QOS information of the DRB carrying that comprises needs modification.
Preferably, the second processing module 810 sends after bearing modification request message to home base stations, after the bearing modification response message of receiving from home base stations, to subscriber equipment, send RRC and connect reconfiguration message, for notifying user equipment, upgrade the configuration of corresponding DRB.
Preferably, the second processing module 810 is after subscriber equipment sends RRC reconfiguration message, receiving that the E-RAB from core net sets up message, and after the initial context of macro base station and the built vertical subscriber equipment of home base stations, according to E-RAB, revising message and determine the DRB carrying that need to increase; To home base stations, send the bearing modification request message of the QOS information of the DRB carrying that comprises needs foundation.
Preferably, the second processing module 810 is after subscriber equipment sends bearing modification request message, after the bearing modification response message of receiving from home base stations, to subscriber equipment, send RRC and connect reconfiguration message, for notifying user equipment, upgrade the configuration of corresponding DRB.
Preferably, the second processing module 810 is after subscriber equipment sends RRC reconfiguration message, receiving that the E-RAB from core net deletes message, and after the initial context of macro base station and the built vertical subscriber equipment of home base stations, according to E-RAB, deleting message and determine the DRB carrying that need to delete; To home base stations, send the bearing modification request message of the QOS information of the DRB carrying that comprises needs deletion.
Preferably, the second processing module 810 is after subscriber equipment sends bearing modification request message, after the deleting load-bearing response message of receiving from home base stations, to subscriber equipment, send RRC and connect reconfiguration message, for notifying user equipment, upgrade the configuration of corresponding DRB.
Preferably, the second processing module 810 is after subscriber equipment sends RRC reconfiguration message, in the E-RAB deleting load-bearing message of receiving from core net, and needing the E-RAB discharging is the last item E-RAB of home base stations, and macro base station is safeguarded to be had after other E-RAB, to home base stations, send carrying release message, for notifying all carryings of home base stations releasing user equipment.
Preferably, the second processing module 810, after subscriber equipment sends carrying release message, sends RRC to subscriber equipment and connects reconfiguration message, upgrades the configuration of corresponding DRB for notifying user equipment.
Preferably, the second processing module 810 is after subscriber equipment sends RRC reconfiguration message, after the customer equipment context release message of receiving from core net, to home base stations, send the carrying release message of the sign that comprises the subscriber equipment that needs free context.
Preferably, the second processing module 810, after subscriber equipment sends carrying release message, sends RRC connection release message to subscriber equipment, and sends customer equipment context release response message to MME.
As shown in Figure 9, the home base stations in the system that embodiment of the present invention business is set up comprises: receiver module 900 and the 3rd processing module 910.
Receiver module 900, sets up request message for receiving from the carrying for subscriber equipment of macro base station;
The 3rd processing module 910, for receiving other layers except PDCP layer corresponding to part or all of DRB of user's face;
Wherein, it is that macro base station carries out sending after paging to subscriber equipment at initiation service call or network side at subscriber equipment that request message is set up in carrying, and the RRC of subscriber equipment connection is based upon on macro base station.
Preferably, the 3rd processing module 910 is set up the QOS information of the DRB of each user's face that the needs that comprise in request message switch, other layers except PDCP layer corresponding to DRB of user's face that configuration is received according to carrying.
Preferably, the 3rd processing module 910 is returned to carrying to macro base station and is set up request response after receiving other layers except PDCP layer that the part or all of DRB of user's face is corresponding.
Preferably, after the 3rd processing module 910 is received other layers except packet data polymerized agreement PDCP layer that the part or all of Data Radio Bearer DRB of user's face is corresponding, after the bearing modification request message of the QOS information of carrying at the DRB that comprises needs modification that receives macro base station, upgrade the configuration of corresponding DRB, and return to bearing modification response message to macro base station.
Preferably, after the 3rd processing module 910 is received other layers except packet data polymerized agreement PDCP layer that the part or all of Data Radio Bearer DRB of user's face is corresponding, after the bearing modification request message of the QOS information of carrying at the DRB that comprises needs foundation that receives macro base station, set up corresponding DRB carrying, and return to bearing modification response message to macro base station.
Preferably, after the 3rd processing module 910 is received other layers except packet data polymerized agreement PDCP layer that the part or all of Data Radio Bearer DRB of user's face is corresponding, after the bearing modification request message of receiving from the QOS information that comprises the DRB carrying that needs delete of macro base station, delete corresponding DRB carrying, and return to deleting load-bearing response message to macro base station.
Preferably, after the 3rd processing module 910 is received other layers except packet data polymerized agreement PDCP layer that the part or all of Data Radio Bearer DRB of user's face is corresponding, after the carrying release message of receiving from macro base station, delete all carryings of subscriber equipment.
Preferably, after the 3rd processing module 910 is received other layers except packet data polymerized agreement PDCP layer that the part or all of Data Radio Bearer DRB of user's face is corresponding, also receiving from needing comprising of macro base station after the carrying release message of sign of subscriber equipment of free context the context of releasing user equipment.
Based on same inventive concept, the method that subscriber equipment carries out business foundation, the method that macro base station carries out business foundation are also provided in the embodiment of the present invention, and home base stations carries out the method for business foundation, because the principle that these methods are dealt with problems is similar to the system of Fig. 6 embodiment of the present invention business foundation, therefore the enforcement of these methods can, referring to the enforcement of system, repeat part and repeat no more.
As shown in figure 10, the method that embodiment of the present invention subscriber equipment carries out business foundation comprises the following steps:
Step 1001, subscriber equipment are being initiated service call or are receiving after the paging of network side, determine that on macro base station, setting up RRC connects;
Step 1002, subscriber equipment are after the RRC reconfiguration message of receiving from macro base station, whole DRB of chain of command are remained on to macro base station, the PDCP layer that whole DRB of user's face are corresponding remains on macro base station, and other layers except PDCP layer corresponding to the part or all of DRB of user's face are switched at least one home base stations, or the part or all of DRB of user's face is switched at least one home base stations.
Preferably, subscriber equipment can carry out simultaneous operation with home base stations after receiving from the RRC reconfiguration message of macro base station, and after synchronous success, to macro base station, returns to RRC and reshuffled message.
Preferably, after step 1002, can further include:
Subscriber equipment, according to the RRC reconfiguration message from macro base station of receiving, upgrades the configuration of corresponding DRB.
The renewal here comprises modification, sets up and deletes.
As shown in figure 11, the method that embodiment of the present invention macro base station carries out business foundation comprises the following steps:
Step 1101, macro base station carry out after paging subscriber equipment at initiation service call or network side at subscriber equipment, determine the RRC of subscriber equipment is connected and is established on macro base station;
Step 1102, macro base station send RRC reconfiguration message to subscriber equipment, be used to indicate subscriber equipment whole DRB of chain of command are remained on to macro base station, the PDCP layer that whole DRB of user's face are corresponding remains on macro base station, and other layers except PDCP layer corresponding to the part or all of DRB of user's face are switched at least one home base stations, or the part or all of DRB of user's face is switched at least one home base stations.
Preferably, before step 1102, can further include:
Request message is set up in the carrying of the QOS information of the DRB of each user's face that macro base station comprises from needs switching to the home base stations transmission that need to receive the DRB of user's face.
Preferably, macro base station is set up after request response receiving from the carrying of home base stations, to subscriber equipment, sends RRC reconfiguration message.
Preferably, macro base station is after subscriber equipment sends RRC reconfiguration message, receiving that the RRC from subscriber equipment has reshuffled after message, the DRB of the user's face that can receive for a home base stations, is mapped to PDCP entity corresponding to this DRB on other layers that this DRB of home base stations configuration is corresponding.
Preferably, macro base station, after subscriber equipment sends RRC reconfiguration message, in the E-RAB modification message of receiving from core net, and after the DRB of the built vertical subscriber equipment of home base stations carrying, is revised the definite DRB carrying that needs modification of message according to E-RAB; To home base stations, send the bearing modification request message of the QOS information of the DRB carrying that comprises needs modification.
Preferably, macro base station sends after bearing modification request message to home base stations, after the bearing modification response message of receiving from home base stations, sends RRC connect reconfiguration message to subscriber equipment, upgrades the configuration of corresponding DRB for notifying user equipment.
Preferably, macro base station is after subscriber equipment sends RRC reconfiguration message, receiving that the E-RAB from core net sets up message, and after the initial context of macro base station and the built vertical subscriber equipment of home base stations, according to E-RAB, revising message and determine the DRB carrying that need to increase; To home base stations, send the bearing modification request message of the QOS information of the DRB carrying that comprises needs foundation.
Preferably, macro base station, after subscriber equipment sends bearing modification request message, after the bearing modification response message of receiving from home base stations, sends RRC to subscriber equipment and connects reconfiguration message, upgrades the configuration of corresponding DRB for notifying user equipment.
Preferably, macro base station is after subscriber equipment sends RRC reconfiguration message, receiving that the E-RAB from core net deletes message, and after the initial context of macro base station and the built vertical subscriber equipment of home base stations, according to E-RAB, deleting message and determine the DRB carrying that need to delete; To home base stations, send the bearing modification request message of the QOS information of the DRB carrying that comprises needs deletion.
Preferably, macro base station, after subscriber equipment sends bearing modification request message, after the deleting load-bearing response message of receiving from home base stations, sends RRC to subscriber equipment and connects reconfiguration message, upgrades the configuration of corresponding DRB for notifying user equipment.
Preferably, macro base station is after subscriber equipment sends RRC reconfiguration message, receiving that the E-RAB from core net deletes message, and needing the E-RAB discharging is the last item E-RAB of home base stations, and macro base station is safeguarded to be had after other E-RAB, to home base stations, send carrying release message, for notifying all carryings of home base stations releasing user equipment.
Preferably, macro base station, after subscriber equipment sends carrying release message, sends RRC to subscriber equipment and connects reconfiguration message, upgrades the configuration of corresponding DRB for notifying user equipment.
Preferably, macro base station, after subscriber equipment sends RRC reconfiguration message, after the customer equipment context release message of receiving from core net, sends the carrying release message of the sign that comprises the subscriber equipment that needs free context to home base stations.
Preferably, macro base station, after subscriber equipment sends carrying release message, sends RRC connection release message to subscriber equipment, and sends customer equipment context release response message to MME.
Wherein, Figure 10 and Figure 11 can synthesize a flow process, form a method of carrying out business foundation, first perform step 1101 and step 1102, then perform step 1002; Wherein only need to guarantee that step 1001 is before step 1102, and not have inevitable sequential relationship between step 1101 and step 1102.
As shown in figure 12, the method that embodiment of the present invention home base stations carries out business foundation comprises the following steps:
Step 1201, home base stations receive sets up request message from the carrying for subscriber equipment of macro base station;
Step 1202, home base stations are received other layers except PDCP layer that the part or all of Data Radio Bearer DRB of user's face is corresponding;
Wherein, it is that macro base station carries out sending after paging to subscriber equipment at initiation service call or network side at subscriber equipment that request message is set up in carrying, and the RRC of subscriber equipment connection is based upon on macro base station.
Preferably, home base stations is set up the service quality QOS information of the DRB of each user's face that the needs that comprise in request message switch, other layers except PDCP layer corresponding to DRB of user's face that configuration is received according to carrying.
Preferably, home base stations returns to carrying to macro base station and sets up request response after receiving other layers except PDCP layer that the part or all of DRB of user's face is corresponding.
Preferably, after home base stations is received other layers except PDCP layer that the part or all of Data Radio Bearer DRB of user's face is corresponding, after the bearing modification request message of the QOS information of carrying at the DRB that comprises needs modification that receives macro base station, upgrade the configuration of corresponding DRB, and return to bearing modification response message to macro base station.
Preferably, after home base stations is received other layers except PDCP layer that the part or all of Data Radio Bearer DRB of user's face is corresponding, after the bearing modification request message of the QOS information of carrying at the DRB that comprises needs foundation that receives macro base station, set up corresponding DRB carrying, and return to bearing modification response message to macro base station.
Preferably, after home base stations is received other layers except PDCP layer that the part or all of Data Radio Bearer DRB of user's face is corresponding, after the bearing modification request message of receiving from the QOS information that comprises the DRB carrying that needs delete of macro base station, delete corresponding DRB carrying, and return to deleting load-bearing response message to macro base station.
Preferably, home base stations after the carrying release message of receiving from macro base station, is deleted all carryings of subscriber equipment after receiving other layers except PDCP layer that the part or all of Data Radio Bearer DRB of user's face is corresponding.
Preferably, after home base stations is received other layers except PDCP layer that the part or all of Data Radio Bearer DRB of user's face is corresponding, receiving from needing comprising of macro base station after the carrying release message of sign of subscriber equipment of free context the context of releasing user equipment.
Enumerating several examples below describes the solution of the present invention.
Example one, when UE initiation business is set up, as shown in figure 13:
1.UE sends RRC to Macro eNB and connects foundation request (RRC Connection Setup Request) message;
2.Macro eNB sends RRC to UE and connects foundation (RRC Connection Setup) message;
3.UE sends RRC connection to Macro eNB and is successfully established (RRC Connection Setup Complete) message;
4, Macro eNB sends initial UE message (Initial UE Message) to MME;
5, MME returns to initial context to Macro eNB and sets up request (Initial Context Setup Request) message;
In step 1~5, UE sets up the connection of RRC signaling at macro eNB and is connected with S1 signaling, has completed signaling establishment of connection.
6, Macro eNB sets up the E-RAB information in request message according to initial context, in conjunction with the position of UE and ability information etc., determines to carry out chain of command separated with user's face;
7, Macro eNB sends and sets up request (Setup Request) message to Local eNB, wherein includes the information such as QOS of carrying;
8, Local eNB carries out access control, will according to information such as QOS, be that each is in parameters such as the DRB of Local work carrying configuration RLC/MAC/PHY subsequently;
9, Local eNB returns to carrying and sets up response (Setup Response) message, wherein comprises Local and be the RLC/MAC/PHY parameter of UE configuration etc.;
10, Macro eNB receives to carry and sets up after response message, starts to organize RRC to connect and reshuffles (RRC Connection Reconfiguration) message, comprises all information of newly setting up DRB, and send RRC reallocation message to UE in message;
11, UE receives the RRC reconfiguration message from Macro eNB, and in message, explicit or indicating of implicit expression need to carry out, after chain of command and user's face lock out operation, will being first triggered to the simultaneous operation of Local eNB;
12, after synchronous success, UE returns to RRC connection and has reshuffled (RRC Connection Reconfiguration Complete) message to Macro eNB;
13, Macro eNB receives RRC and has reshuffled after message, replys initial context set up request response (Initial Context Setup Response) message to MME, carries the transport layer address information of Macro eNB etc. in message;
14, MME sends bearing modification request (Bearer Modify Request) message to Serving GW (gateway);
15, Serving GW returns to bearing modification response (Bear Modify Response) message.
Wherein, be based upon the Deta bearer of Local eNB, the path of up-downgoing data flow is: UE<->Local eNB<->Macro eNB<->Serving GW.
Example two, the E-RAB receiving from core net revise after message, and Macro eNB can revise the DRB carrying that is based upon Local, as shown in figure 14:
1, Serving GW sends more new bearer request (Update Bearer Request) message to MME;
2, MME sends E-RAB to Macro eNB and revises (E-RAB Modify Bearer Request) message;
3, the E-RAB that Macro eNB receives from core net revises after message, to Local eNB, sends bearing modification request (Modify Request) message, wherein includes the information such as QOS of renewal;
4, Local eNB receives after this message, to according to relevant information, be the corresponding parameters such as the corresponding RLC/MAC/PHY of DRB bearer update of working at Local eNB, and return to bearing modification response (Modify Response) message, wherein comprise the RLC/MAC/PHY parameter of renewal etc.;
5, Macro eNB receives after bearing modification response message, by reshuffling (RRC Connection Reconfiguration) message according to the Information Organization RRC connection from Local eNB, returns to UE;
6, UE receives after this message, upgrades corresponding DRB configuration, returns to RRC connection and has reshuffled (RRC Connection Reconfiguration Complete) message;
7, Macro eNB returns to E-RAB to MME and revises response (E-RAB Modify Bearer Response) message;
8, UE sends direct-sending message (Direct Transfer) to Macro eNB;
9, Macro eNB carries out up link Non-Access Stratum transmission (Uplink NAS Transport) to MME;
10, MME sends more new bearer response (Update Bearer Response) message to Serving GW.
Example three, Macro eNB and Local eNB have set up the initial context of UE, if the E-RAB that Macro receives from core net sets up or deletes after message, the DRB carrying that can reshuffle at Local (increase or delete some DRB and carry), as shown in figure 15:
1, Serving GW sends and creates carrying request (Create Bearer Request) message to MME;
2, MME sends E-RAB to Macro eNB and sets up (E-RAB Setup Request) message;
3, the E-RAB that Macro eNB receives from core net sets up after message, to Local eNB, sends bearing modification request (Modify Request) message, wherein includes the information such as QOS of the carrying of needs foundation;
4, Local eNB receives after this message, will be that the parameters such as corresponding RLC/MAC/PHY are set up in DRB carrying according to relevant information, and return to bearing modification response (Modify Response) message, wherein comprises the RLC/MAC/PHY parameter of renewal etc.;
5, Macro eNB receives after bearing modification response message, by reshuffling (RRC Connection Reconfiguration) message according to the Information Organization RRC connection from Local eNB, returns to UE;
6, UE receives after this message, upgrades corresponding DRB configuration, returns to RRC connection and has reshuffled (RRC Connection Reconfiguration Complete) message;
7, Macro eNB returns to E-RAB to MME and sets up response (E-RAB Setup Response) message;
8, UE sends direct-sending message (Direct Transfer) to Macro eNB;
9, Macro eNB carries out up link Non-Access Stratum transmission (Uplink NAS Transport) to MME;
10, MME sends and creates carrying response (Create Bearer Response) message to Serving GW.
If need deleting bearing, in step 1, be deleting bearing request (Delete Bearer Request) message; In step 2, be that E-RAB deletes (E-RAB Delete Request) message; In step 4, Local eNB deletes corresponding DRB carrying according to relevant information; In step 7, be that E-RAB deletes response (E-RAB Delete Response) message; In step 10, be deleting bearing response (Delete Bearer Response) message.
If it is the last item E-RAB that example four MME receive what delete in the deleting load-bearing message from S-GW, the RRC that Macro eNB will discharge UE connects, as shown in figure 16:
1, Serving GW sends deleting bearing request (Delete Bearer Request) message to MME;
2, MME judgement is to delete the last item E-RAB, to Macro eNB, sends UE context release command (UE Context Release Command) message;
3, Macro eNB sends release command (Release Command) to Local eNB;
Optionally, 3a, Local eNB, after successfully discharging, return and discharge successfully (Release Complete) message;
4, Macro eNB sends RRC Connection Release (RRC Connection Release) message to UE;
5, Macro eNB returns to UE context to MME and discharges successfully (UE Context Release Complete) message;
6, MME sends deleting bearing response (Delete Bearer Response) message to Serving GW.
If example five Macro receive and delete what delete in message from the E-RAB of core net is the upper the last item E-RAB of Local, and has also maintained other E-RAB on Macro, Macro eNB will only be released in the UE context of Local, as shown in figure 17:
1, Serving GW sends deleting bearing request (Delete Bearer Request) message to MME;
2, MME sends E-RAB to Macro eNB and deletes (E-RAB Delete Request) message;
3, the E-RAB that Macro eNB receives from core net deletes after message, is judged as after the last item E-RAB that deletes Local eNB, to Local eNB, sends release command (Release Command);
Optionally, 3a, Local eNB, after successfully discharging, return and discharge successfully (Release Complete) message;
4, Macro eNB reshuffles (RRC Connection Reconfiguration) message to RRC connection and sends to UE;
5, UE receives after this message, returns to RRC connection and has reshuffled (RRC Connection Reconfiguration Complete) message;
6, Macro eNB returns to E-RAB to MME and deletes response (E-RAB Delete Response) message;
7, UE sends direct-sending message (Direct Transfer) to Macro eNB;
8, Macro eNB carries out up link Non-Access Stratum transmission (Uplink NAS Transport) to MME;
9, MME sends deleting bearing response (Delete Bearer Response) message to Serving GW.
Example six, the another kind of network architecture, as shown in figure 18, wherein the SRB of UE is retained on Macro eNB, and by all layers of all or part of DRB, PDCP/RLC/MAC/PHY remains on Local eNB.
Be positioned at the protocol stack structure of Local eNB carrying as shown in figure 19, wherein user's face eNB (Local eNB) of UE provides user plane data transfer function for UE; The chain of command eNB of UE (Macro eNB) provides chain of command transmission of messages function for UE, because NAS message need to be by RRC message bearing, so the serving MME of UE is connected with the chain of command eNB of UE.
When UE initiation business is set up, its flow chart and Figure 13 are basic identical, the main distinction is in step 13, receiving RRC has reshuffled after message, Macro eNB replys INITIAL CONTEXT SETUP RESPONSE message, for some E-RAB, in message, need transport layer address information carrying Local eNB etc.Step is subsequently until transfer of data is all similar with Figure 13.Different is, be based upon the Deta bearer of Local eNB, the path of up-downgoing data flow is from UE<->Local Enb<->Serving GW, and when configuration parameter, is the parameter of all layers that configuration DRB is corresponding.
Similarly, the E-RAB receiving from core net revises after message, and Macro eNB can revise the DRB carrying that is based upon Local, and flow process is identical with Figure 14, and difference is when configuration parameter it is the parameter of all layers that configuration DRB is corresponding.If or the E-RAB that Macro receives from core net sets up or deletes after message, the DRB carrying that can reshuffle at Local (increase or delete some DRB and carry), identical with Figure 15~Figure 17 flow process, and when configuration parameter, be the parameter of all layers that configuration DRB is corresponding.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect completely.And the present invention can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code one or more.
The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be in computer program instructions realization flow figure and/or block diagram each flow process and/or the flow process in square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction of carrying out by the processor of computer or other programmable data processing device is produced for realizing the device in the function of flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame on computer or other programmable devices.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.