Embodiment
The embodiment of the present invention occurs after carrying handoff failure when subscriber equipment is switched to home base stations by carrying, carrying is remained on to macro base station or is switched to other home base stations, thereby can in carrying transfer process, occur unsuccessfully to process for UE under user's face hierarchical network deployment scenario separated with chain of command, improve systematic function.
Wherein, the carrying of the embodiment of the present invention is switched only has DRB (Data Radio Bearer, Data Radio Bearer) to switch; Or carrying switching has DRB and SRB (Signal Radio Bearer, Signaling Radio Bearer) to switch.
After UE receives carrying separation order, UE user's face is with chain of command by separated, and now UE is connected to two eNB simultaneously.Eat dishes without rice or wine for its two kinds to connect as shown in Figure 6 and Figure 7.
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 8, the system that embodiment of the present invention carrying is switched comprises: macro base station 10 and subscriber equipment 20.
Macro base station 10, for determining that carrying handoff failure occurs subscriber equipment when carrying is switched to home base stations; The carrying of subscriber equipment is remained on to macro base station or the carrying of subscriber equipment is switched to other home base stations;
, there is carrying handoff failure for determining in subscriber equipment 20, carrying is remained on to macro base station or is switched to other home base stations when carrying is switched to home base stations.
Wherein, the mode that carrying handoff failure occurs when carrying is switched to home base stations for macro base station 10 and the definite subscriber equipment of subscriber equipment 20 has a lot, enumerates several below.
Mode one, macro base station 10 and subscriber equipment 20 are respectively safeguarded a timer.
Concrete, macro base station 10 is not received the RB switching response message from subscriber equipment after switch overtime, determines that carrying handoff failure occurs subscriber equipment when carrying is switched to home base stations;
Subscriber equipment 20 is unsuccessful access home base stations after switch overtime, determines carrying handoff failure occurs when carrying is switched to home base stations.
For mode one, the duration of macro base station 10 notifying user equipment 20 switching timer; Accordingly, subscriber equipment 20 arranges switching timer according to the duration of macro base station 10 notices.Such as macro base station 10 can be notified the duration of switching timer to subscriber equipment 20 by carrying switching command.
Mode two, subscriber equipment 20 are respectively safeguarded a timer.
Concrete, subscriber equipment 20 is unsuccessful access home base stations after switch overtime, determines carrying handoff failure occurs when carrying is switched to home base stations;
Then, subscriber equipment 20 reports carrying handoff failure to macro base station 10; Accordingly, macro base station 10, after the RB switch failure information of receiving from subscriber equipment 20, determines that carrying handoff failure occurs subscriber equipment 20 when carrying is switched to home base stations.
For mode one, the duration of macro base station 10 notifying user equipment 20 switching timer; Accordingly, subscriber equipment 20 arranges switching timer according to the duration of macro base station 10 notices.Such as macro base station 10 can be notified the duration of switching timer to subscriber equipment 20 by carrying switching command.
Mode three, macro base station 10 are safeguarded a timer.
Concrete, macro base station 10 is not received the RB switching response message from subscriber equipment after switch overtime, determines that carrying handoff failure occurs subscriber equipment 20 when carrying is switched to home base stations;
Then, macro base station 10 notifying user equipment 20 carrying handoff failures; Accordingly, subscriber equipment 20, after the notice of receiving from the carrying handoff failure of macro base station 10, is determined carrying handoff failure is occurred when carrying is switched to home base stations.
Preferably, if the carrying of subscriber equipment 20 need to be remained on to macro base station 10, before macro base station 10 recovery subscriber equipment 20 carrying switchings, at the DRB of macro base station 10, configure, and at the DRB of macro base station 10, configure before subscriber equipment 20 recovering bearing switchings.
Subscriber equipment 20 recovering bearing switch before after the DRB of macro base station 10 configuration, subscriber equipment 20 can also recover and macro base station 10 between DRB transmission;
Accordingly, after the front configuration of the DRB at macro base station 10 is switched in macro base station 10 recovery subscriber equipment 20 carryings, macro base station, the DRB transmission between 1 recovery and subscriber equipment 20.
Preferably, if the carrying of subscriber equipment 20 need to be switched to other home base stations, macro base station 10 notifying user equipment 20 are initiated access to standby home base stations, and subscriber equipment 20 is after the RB reconfiguration message of receiving from macro base station 10, to standby home base stations, initiates access.
Preferably, after macro base station 10 determines that carrying handoff failure occurs subscriber equipment when carrying is switched to home base stations, can also notify the context of home base stations 20 deletion subscriber equipmenies and be released to the Radio Resource of user equipment allocation.
Wherein, embodiment of the present invention macro base station and home base stations can be evolution base stations, Home eNodeB, RN (via node), the network side node of the other types such as pico (micro-base station), RRH (Remote Radio Head, far end radio frequency).
As shown in Figure 9, the subscriber equipment of the embodiment of the present invention comprises: the first determination module 900 and the first processing module 910.
, for determining, when carrying is switched to home base stations, there is carrying handoff failure in the first determination module 900;
The first processing module 910, for remaining on carrying macro base station or being switched to other home base stations.
Preferably, the first determination module 900 is unsuccessful access home base stations after switch overtime, determines carrying handoff failure occurs when carrying is switched to home base stations; Or after the notice of receiving from the carrying handoff failure of macro base station, determine carrying handoff failure occurs when carrying is switched to home base stations.
Preferably, the first determination module 900 arranges switching timer according to the duration of macro base station notice.
Preferably, the first determination module 900 is unsuccessful access home base stations after switch overtime, determines when carrying is switched to home base stations and, after generation carrying handoff failure, to macro base station, reports carrying handoff failure.
Preferably, the first processing module 910 remains on macro base station according to following manner by carrying:
Recovering bearing configures at the DRB of macro base station before switching.
Preferably, after the first processing module 910 recovering bearing are switched the front configuration of the DRB at macro base station, the DRB transmission between recovery and macro base station.
Preferably, the first processing module 910 is switched to other home base stations according to following manner by carrying:
After the RB reconfiguration message of receiving from macro base station, to standby home base stations, initiate access.
As shown in figure 10, the network equipment of the embodiment of the present invention comprises: the second determination module 1010 and the second processing module 1011.
The second determination module 1010, for determining that carrying handoff failure occurs subscriber equipment when carrying is switched to home base stations;
The second processing module 1011, for remaining on the carrying of subscriber equipment macro base station or the carrying of subscriber equipment being switched to other home base stations.
Preferably, the second determination module 1010 is not received the RB switching response message from subscriber equipment after switch overtime, determines that carrying handoff failure occurs subscriber equipment when carrying is switched to home base stations; Or after the RB switch failure information of receiving from subscriber equipment, determine that carrying handoff failure occurs subscriber equipment when carrying is switched to home base stations.
Preferably, the duration of the second determination module 1010 notifying user equipment switching timer.
Preferably, the second processing module 1011 remains on macro base station according to following manner by the carrying of subscriber equipment:
Recover before subscriber equipment carrying is switched to configure at the DRB of macro base station.
Preferably, after the front configuration of the DRB at macro base station is switched in the second processing module 1011 recovery subscriber equipment carryings, the DRB transmission between recovery and subscriber equipment.
Preferably, the second processing module 1011 is switched to other home base stations according to following manner by the carrying of subscriber equipment:
Notifying user equipment is initiated access to standby home base stations.
Preferably, after the second processing module 1011 determines that carrying handoff failure occurs subscriber equipment when carrying is switched to home base stations, notice home base stations is deleted the context of subscriber equipment and is released to the Radio Resource of user equipment allocation.
Based on same inventive concept, in the embodiment of the present invention, also provide method and the network equipment that a kind of subscriber equipment carries switching to carry the method for switching, because the principle that these methods are dealt with problems is similar to the system of embodiment of the present invention carrying switching, therefore the enforcement of these methods can, referring to the enforcement of system, repeat part and repeat no more.
As shown in figure 11, embodiment of the present invention subscriber equipment carries the method for switching and comprises the following steps:
Step 1101, subscriber equipment are determined generation carrying handoff failure when carrying is switched to home base stations;
Step 1102, subscriber equipment remain on carrying macro base station or are switched to other home base stations.
Preferably, in step 1101, subscriber equipment is unsuccessful access home base stations after switch overtime, determines carrying handoff failure occurs when carrying is switched to home base stations; Or
Subscriber equipment, after the notice of receiving from the carrying handoff failure of macro base station, is determined carrying handoff failure is occurred when carrying is switched to home base stations.
Preferably, before step 1101, also comprise:
Subscriber equipment arranges switching timer according to the duration of macro base station notice.
Preferably, subscriber equipment is unsuccessful access home base stations after switch overtime, determines when carrying is switched to home base stations and, after generation carrying handoff failure, to macro base station, reports carrying handoff failure.
Preferably, subscriber equipment remains on macro base station by carrying and comprises:
Subscriber equipment recovering bearing configures at the DRB of macro base station before switching.
Preferably, subscriber equipment recovering bearing switch before after the DRB of macro base station configuration, can also recover and macro base station between DRB transmission.
Preferably, subscriber equipment is switched to other home base stations by carrying, comprising:
Subscriber equipment, after the RB reconfiguration message of receiving from macro base station, is initiated access to standby home base stations.
As shown in figure 12, embodiment of the present invention network equipment carries the method for switching and comprises the following steps:
Step 1201, macro base station determine that carrying handoff failure occurs subscriber equipment when carrying is switched to home base stations;
Step 1202, macro base station remain on the carrying of subscriber equipment macro base station or the carrying of subscriber equipment are switched to other home base stations.
Preferably, step 1201 macro base station is not received the RB switching response message from subscriber equipment after switch overtime, determines that carrying handoff failure occurs subscriber equipment when carrying is switched to home base stations; Or
Macro base station, after the RB switch failure information of receiving from subscriber equipment, determines that carrying handoff failure occurs subscriber equipment when carrying is switched to home base stations.
Preferably, before step 1201, the duration of macro base station notifying user equipment switching timer.
Preferably, macro base station remains on macro base station by the carrying of subscriber equipment, comprising:
Macro base station recovers before subscriber equipment carrying is switched to configure at the DRB of macro base station.
Preferably, macro base station recover subscriber equipment carrying switch before after the DRB of macro base station configuration, can also recover and subscriber equipment between DRB transmission.
Preferably, macro base station is switched to other home base stations by the carrying of subscriber equipment, comprising:
Macro base station notifying user equipment is initiated access to standby home base stations.
Preferably, after macro base station determines that carrying handoff failure occurs subscriber equipment when carrying is switched to home base stations, can also notify home base stations to delete the context of subscriber equipment and be released to the Radio Resource of user equipment allocation.
Enumerating respectively several examples below describes the solution of the present invention.
Example one,
UE receives " the RB switching command " that macro eNB sends, the sign that comprises target local eNB in this message, need the DRB sign (or indication that all DRB shifts) and the corresponding wireless resource configuration (corresponding to the scene in Fig. 6) that shift, in this message, carry a timer length simultaneously.UE starts timer after receiving this message, initiates access according to the indication in this message to local eNB simultaneously.This RB switching command can be the RRC message of new definition, also can reuse current RRC message, as RRC connects reallocation message.
If in timer expiry, UE does not still successfully access local eNB, UE thinks this RB handoff failure so, then UE sends " RB handoff failure " message to macro eNB, with notice macro eNB, in this message, can further carry the reason of handoff failure or DRB sign etc.UE recovers previous DRB relevant configuration simultaneously, will not have the DRB of successful switch still to remain on macro eNB.After Macro eNB receives " RB handoff failure " message, recover UE DRB configuration before, under this eNB, continue as UE all DRB transmission are provided.Macro eNB notifies this RB handoff failure of local eNB simultaneously, and local eNB deletes the context of this UE, the Radio Resource of preparing for this UE before discharging.
Idiographic flow is as shown in figure 13:
Step 1301, Macro eNB send RN switching command to UE;
Step 1302, UE initiate access to local eNB;
Step 1303, UE determine access local eNB failure;
Step 1304, UE send RN switch failure information to lMacro eNB;
Step 1305, UE recover the configuration at the DRB of Macro eNB, and Macro eNB is that subscriber equipment recovers DRN configuration;
Step 1306, Macro eNB notice local eNB discharge the resource of UE;
Step 1307, local eNB discharge UE context and are the Radio Resource of UE distribution.
Example two,
UE receives " the RB switching command " that macro eNB sends, the sign that comprises target local eNB in this message, need the DRB sign (or indication that all DRB shifts) and the corresponding wireless resource configuration (corresponding to the scene in Fig. 6) that shift, in this message, carry a timer length simultaneously.Marco eNB starts corresponding timer while sending " RB switching command ", UE starts timer after receiving this message, initiates access according to the indication in this message to local eNB simultaneously.This RB switching command can be the RRC message of new definition, also can reuse current RRC message, as RRC connects reallocation message.
For UE, if in timer expiry, UE does not still successfully access local eNB, and UE thinks and discharges voluntarily Local eNB relevant configuration information by this RB handoff failure so, the DRB configuration before recovering under Marco eNB.
For Marco eNB, if in the timer expiry of Marco eNB, also do not receive " RB handoff response " message of UE feedback, think that so carrying is separated failed.Marco eNB can recover UE and recover previous DRB relevant configuration, continues as UE all DRB transmission are provided under this eNB.Macro eNB notifies this RB handoff failure of local eNB simultaneously, and local eNB deletes the context of this UE, the Radio Resource of preparing for this UE before discharging.
Idiographic flow is as shown in figure 14:
Step 1401, Macro eNB send RN switching command to UE;
Step 1402, UE initiate access to local eNB;
Step 1403, UE determine access local eNB failure, and Macro eNB determines access local eNB failure;
Step 1404, UE recover the configuration at the DRB of Macro eNB, and Macro eNB is that subscriber equipment recovers DRN configuration;
Step 1405, Macro eNB notice local eNB discharge the resource of UE;
Step 1406, local eNB discharge UE context and are the Radio Resource of UE distribution.
Example three,
The SRB switching of UE also triggers by RB switching command.UE receives " the RB switching command " that macro eNB sends, the sign that comprises target local eNB in this message, need the DRB sign (or indication that all DRB shifts) and the corresponding wireless resource configuration that shift, in this message, carry a timer length simultaneously, and require UE at local eNB, to set up the indication (this SRB is only for transmitting the relevant information of local eNB RRM and bearer management, corresponding to the scene in Fig. 7) of SRB.UE starts timer after receiving this message, initiates access according to the indication in this message to local eNB simultaneously.This RB switching command can be the RRC message of new definition, also can reuse current RRC message, as RRC connects reallocation message.
If in timer expiry, UE does not still successfully access local eNB, UE thinks this SRB and the equal handoff failure of DRB so, then UE sends " RB handoff failure " message to macro eNB, with notice macro eNB, in this message, can further carry the reason of handoff failure or SRB, DRB sign etc.UE recovers previous DRB relevant configuration simultaneously, will not have the DRB of successful switch still to remain on macro eNB.After Macro eNB receives " RB handoff failure " message, recover UE DRB configuration before, under this eNB, continue as UE all DRB transmission are provided.Macro eNB notifies local this DRB of eNB and SRB handoff failure simultaneously, and local eNB deletes the context of this UE, the Radio Resource of preparing for this UE before discharging.Flow chart is with example one.
Example four,
UE receives " RB switching command " (comprising two kinds of situations that only have RB switching and DRB and SRB all to switch) that macro eNB sends, the sign that comprises target local eNB in this message, needs the DRB sign (or indication that all DRB shifts) and the corresponding wireless resource configuration that shift.Macro eNB when sending this message to UE (or in moment of confirming that UE receives this message) starts timer.UE initiates access according to the indication in this message to local eNB after receiving this message.This RB switching command can be the RRC message of new definition, also can reuse current RRC message, as RRC connects reallocation message.
If Macro eNB finds in timer expiry, UE does not still successfully access local eNB, be that UE does not still send " RB has switched " message to macro eNB, Macro eNB thinks this RB handoff failure so, then to UE, send " RB handoff failure " message, to notify UE to stop relevant RB handoff procedure.Macro eNB recovers the DRB configuration before UE simultaneously, continues as UE all DRB transmission are provided under this eNB.UE receives after this message, stops relevant RB handoff procedure (as the access procedure to local eNB), and the DRB relevant configuration before simultaneously recovering, will not have the DRB of successful switch still to remain on macro eNB.Macro eNB notifies this RB handoff failure of local eNB afterwards, and local eNB deletes the context of this UE, the Radio Resource of preparing for this UE before discharging.
Idiographic flow is as shown in figure 15:
Step 1501, Macro eNB send RN switching command to UE;
Step 1502, UE initiate access to local eNB;
Step 1503, Macro eNB determine access local eNB failure;
Step 1504, Macro eNB send RN switch failure information to UE;
Step 1505, UE recover the configuration at the DRB of Macro eNB, and Macro eNB is that subscriber equipment recovers DRN configuration;
Step 1506, Macro eNB notice local eNB discharge the resource of UE;
Step 1507, local eNB discharge UE context and are the Radio Resource of UE distribution.
Example five,
UE receives " RB switching command " (comprising two kinds of situations that only have RB switching and DRB and SRB all to switch) that macro eNB sends, the sign that comprises target local eNB in this message, needs the DRB sign (or indication that all DRB shifts) and the corresponding wireless resource configuration that shift.Macro eNB when sending this message to UE (or in moment of confirming that UE receives this message) starts timer.UE initiates access according to the indication in this message to local eNB after receiving this message.
If Macro eNB finds in timer expiry, UE does not still successfully access local eNB, be that UE does not still send " RB has switched " message to macro eNB, Macro eNB thinks this RB handoff failure so, then to UE, send " RB reshuffles " message, with notice, UE stops the RB handoff procedure for relevant Local eNB, and selects the standby Local eNB in " RB reshuffles " message again to initiate access.Macro eNB is issuing " RB reshuffles " before, need consult and complete with standby Local eNB the context transfer work of this UE.UE receives after this message, stops current RB handoff procedure (as the access procedure to this local eNB), and the while is initiated access again to the standby Local eNB in " RB reshuffles " message.Macro eNB notifies this RB handoff failure of local eNB that UE fails access afterwards, and this local eNB deletes the context of this UE, the Radio Resource of preparing for this UE before discharging.
Idiographic flow is as shown in figure 16:
Step 1601, Macro eNB send RN switching command to UE;
Step 1602, UE initiate access to local eNB;
Step 1603, Macro eNB determine access local eNB failure;
Step 1604, Macro eNB send RB reconfiguration message to UE;
Step 1605, UE initiate access to standby local eNB;
Step 1606, Macro eNB notice local eNB discharge the resource of UE;
Step 1607, local eNB discharge UE context and are the Radio Resource of UE distribution.
Wherein, between step 1606~step 1607 and step 1605, there is no inevitable sequential relationship, both can first perform step 1606~step 1607, then in execution step 1605; Also can first perform step 1605, in execution step 1606~step 1607; Can also perform step 1606~step 1607 and step 1605 simultaneously.
RB switching command in embodiment and RB reconfigure command can be the RRC message of new definition above, also can reuse current RRC message, as RRC connects reallocation message.
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.