CN103582050A - Bearer switching method, bearer switching system and bearer switching equipment - Google Patents
Bearer switching method, bearer switching system and bearer switching equipment Download PDFInfo
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- CN103582050A CN103582050A CN201210251894.2A CN201210251894A CN103582050A CN 103582050 A CN103582050 A CN 103582050A CN 201210251894 A CN201210251894 A CN 201210251894A CN 103582050 A CN103582050 A CN 103582050A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0079—Transmission or use of information for re-establishing the radio link in case of hand-off failure or rejection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W36/04—Reselecting a cell layer in multi-layered cells
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Abstract
The embodiment of the invention relates to the technical field of wireless communication, particularly relates to a bearer switching method, a bearer switching system and bearer switching equipment and aims to provide a processing scheme for a situation in which UE fails in a bearer transfer process in a hierarchical network deployment scenario in which a user plane and a control plane are separated. The bearer switching method provided by the embodiment of the invention comprises the following steps: bearer switching failure occurs when user equipment determines to switch a bearer to a local evolved node B (eNB); and the user equipment maintains the bearer in a macro eNB or switches the bearer to other local eNBs. Because the user equipment maintains the bearer in a macro eNB or switches the bearer to other local eNBs after bearer switching fails when the user equipment switches the bearer to a local eNB, failure of the UE in the process of bearer transfer in the hierarchical network deployment scenario in which the user plane and the control plane are separated can be handled, and the system performance is improved.
Description
Technical field
The present invention relates to wireless communication technology field, particularly a kind of method, system and equipment that carries switching.
Background technology
As shown in Figure 1, in the network architecture schematic diagram of E-UTRAN (Evolved Universal Terrestrial Radio Access Network, the universal land radio access web of evolution), E-UTRAN is comprised of eNB (evolution base station).
Between MME (Mobility Management Entity, Mobility Management Entity) and eNB, adopt S1-MME interface to be connected; ENB completes Access Network function, passes through idle port communication with UE (subscriber equipment).The UE that is attached to network for each, has a MME to provide service for it, and this MME is called the serving MME of UE.S1-MME interface, for UE provides chain of command service, comprises mobile management and DRB management function.
Between S-GW (Serving GW, gateway) and eNB, adopt S1-U interface to be connected, the UE that is attached to network for each, has a S-GW to provide service for it, and this S-GW is called the service S-GW of UE.S1-U interface provides the service of user's face for UE, and the user face data of UE is by S1-U GTP (GTP, GPRS Tunneling Protocol, GPRS Tunnel Protocol; GPRS, General Packet Radio Service, GPRS) DRB transmits between S-GW and eNB.
User face protocol stack between UE and network as shown in Figure 2, chain of command protocol stack as shown in Figure 3, user plane protocol comprises PDCP (Packet Data Convergence Protocol, packet data polymerized agreement), RLC (Radio Link Control, wireless link is controlled), MAC (Medium Access Control, media access control) and PHY (physical layer); Chain of command agreement comprises RRC (Radio Resource Control, Radio Resource control) and NAS (Non-Access Stratum, Non-Access Stratum), and wherein, rrc layer message need to be passed through the processing of user plane protocol layer, then transmits eating dishes without rice or wine; NAS layer message is transmitted in eating dishes without rice or wine to be encapsulated in RRC message; At S1-MME interface, transmission in S1 connection.
In existing LTE/LTE-A network, the RRC/PDCP/RLC/MAC/PHY peer layer of UE is all positioned at same eNB, and the NAS layer peer layer of UE is positioned at above-mentioned eNB has set up the MME that the S1 for this UE is connected.
In existing protocol, PDCP and RLC entity and DRB (Data Radio Bearer, Data Radio Bearer)/SRB (Signal Radio Bearer, Signaling Radio Bearer) 1/SRB2 is corresponding, each DRB and SRB1, SRB2 distinguishes corresponding a set of PDCP and RLC entity; DRB/SRB1/SRB2 converges at MAC layer.Therefore, UE understands the while by overlapping PDCP and RLC entity more, but only has a MAC layer and physical layer entity.
In existing hierarchical network as shown in Figure 4, Macro cell (macrocell) provides basis to cover, Local cell (home cell) provides focus to cover, between Local Cell and Macro Cell, have data/signaling interface (wire/wireless interface), UE can be operated under Macro eNB or Local eNB.
The cell coverage area UE little, service controlling due to Local eNB is few, so the UE that is connected to Local eNB often can obtain better service quality, as: obtain higher service rate, higher-quality link.Therefore,, when being connected to the UE of Macro eNB and approaching the community of control of Local eNB, can be switched to the service that Local eNB provides to obtain Local eNB; When community that UE controls away from Local eNB, need to be switched to the community that Macro eNB controls, to keep wireless connections.Because Local eNB quantity is many, it is little to cover, cause UE needs frequently between Macro eNB community and Local eNB community, to switch.
At UE user's face and chain of command, do not have in separative situation, UE only exists and is connected with macro eNB, as shown in Figure 5.The frequency of switching between Macro eNB community and Local eNB community in order to reduce UE, has introduced user's face network design mode separated with chain of command.
At present, under user's face hierarchical network deployment scenario separated with chain of command, for UE, in carrying transfer process, there is failed situation, also there is no the method for solution.
Summary of the invention
, in order to provide a kind of, for UE under user's face hierarchical network deployment scenario separated with chain of command, in carrying transfer process, there is failed processing scheme in a kind of method, system and equipment that carries switching that the embodiment of the present invention provides.
A kind of method of carrying switching that the embodiment of the present invention provides, comprising:
Subscriber equipment is determined generation carrying handoff failure when carrying is switched to home base stations;
Described subscriber equipment remains on carrying macro base station or is switched to other home base stations.
The method that the another kind carrying that the embodiment of the present invention provides is switched, it comprises:
Macro base station determines that carrying handoff failure occurs subscriber equipment when carrying is switched to home base stations;
Described macro base station remains on the carrying of described subscriber equipment described macro base station or the carrying of described subscriber equipment is switched to other home base stations.
A kind of subscriber equipment that carries switching that the embodiment of the present invention provides, comprising:
, for determining, when carrying is switched to home base stations, there is carrying handoff failure in the first determination module;
The first processing module, for remaining on carrying macro base station or being switched to other home base stations.
A kind of macro base station that carries switching that the embodiment of the present invention provides, comprising:
The second determination module, for determining that carrying handoff failure occurs subscriber equipment when carrying is switched to home base stations;
The second processing module, for remaining on the carrying of described subscriber equipment described macro base station or the carrying of described subscriber equipment being switched to other home base stations.
A kind of system of carrying switching that the embodiment of the present invention provides, comprising:
Macro base station, for determining that carrying handoff failure occurs subscriber equipment when carrying is switched to home base stations, remains on the carrying of described subscriber equipment described macro base station or the carrying of described subscriber equipment is switched to other home base stations;
, there is carrying handoff failure for determining in subscriber equipment, carrying is remained on to macro base station or is switched to other home base stations when carrying is switched to home base stations.
Owing to occurring when subscriber equipment is switched to home base stations by carrying after carrying handoff failure, 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.
Accompanying drawing explanation
Fig. 1 is in the network architecture schematic diagram of E-UTRAN in background technology;
Fig. 2 is the user face protocol stack schematic diagram between UE and network in background technology;
Fig. 3 is the chain of command protocol stack schematic diagram between UE and network in background technology;
Fig. 4 is hierarchical network deployment scenario schematic diagram in background technology;
Fig. 5 is that in background technology, UE only has the schematic diagram of eating dishes without rice or wine to be connected with macro eNB;
Fig. 6 is the connection diagram of eating dishes without rice or wine between embodiment of the present invention the first UE and two eNB;
Fig. 7 is the connection diagram of eating dishes without rice or wine between embodiment of the present invention the second UE and two eNB;
Fig. 8 is the system configuration schematic diagram that embodiment of the present invention carrying is switched;
Fig. 9 is the structural representation of embodiment of the present invention subscriber equipment;
Figure 10 is the structural representation of embodiment of the present invention network equipment;
Figure 11 is that embodiment of the present invention subscriber equipment carries the method flow schematic diagram switching;
Figure 12 is that embodiment of the present invention network equipment carries the method flow schematic diagram switching;
Figure 13 is the method flow schematic diagram that embodiment of the present invention the first RB (Radio Bearer, radio bearer) handoff failure is processed;
Figure 14 is the method flow schematic diagram that embodiment of the present invention the second RB handoff failure is processed;
Figure 15 is the method flow schematic diagram that the third RB handoff failure of the embodiment of the present invention is processed;
Figure 16 is the method flow schematic diagram that the 4th kind of RB handoff failure of the embodiment of the present invention processed.
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:
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:
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.
Claims (31)
1. a method of carrying switching, is characterized in that, the method comprises:
Subscriber equipment is determined generation carrying handoff failure when carrying is switched to home base stations;
Described subscriber equipment remains on carrying macro base station or is switched to other home base stations.
2. the method for claim 1, is characterized in that, described subscriber equipment is determined generation carrying handoff failure when carrying is switched to home base stations, comprising:
Described subscriber equipment is the described home base stations of unsuccessful access after switch overtime, determines carrying handoff failure occurs when carrying is switched to home base stations; Or
Described subscriber equipment, after the notice of receiving from the carrying handoff failure of described macro base station, is determined carrying handoff failure is occurred when carrying is switched to home base stations.
3. method as claimed in claim 2, is characterized in that, described subscriber equipment also comprises before determining that handoff failure is carried in generation when carrying is switched to home base stations:
Described subscriber equipment arranges described switching timer according to the duration of described macro base station notice.
4. method as claimed in claim 2, is characterized in that, described subscriber equipment is the described home base stations of unsuccessful access after switch overtime, determines when carrying is switched to home base stations and, after generation carrying handoff failure, also comprises:
Described subscriber equipment reports carrying handoff failure to described macro base station.
5. the method for claim 1, is characterized in that, described subscriber equipment remains on macro base station by carrying and comprises:
Described subscriber equipment recovering bearing configures at the Data Radio Bearer DRB of macro base station before switching.
6. method as claimed in claim 5, is characterized in that, described subscriber equipment recovering bearing also comprises after switching the front configuration of the DRB at macro base station:
DRB transmission between described subscriber equipment recovery and described macro base station.
7. the method for claim 1, is characterized in that, described subscriber equipment is switched to other home base stations by carrying, comprising:
Described subscriber equipment, after the radio bearer RB reconfiguration message of receiving from described macro base station, is initiated access to standby home base stations.
8. the method as described in as arbitrary in claim 1～7, is characterized in that, carrying is switched only has DRB to switch; Or carrying switching has DRB and Signaling Radio Bearer SRB to switch.
9. a method of carrying switching, is characterized in that, the method comprises:
Macro base station determines that carrying handoff failure occurs subscriber equipment when carrying is switched to home base stations;
Described macro base station remains on the carrying of described subscriber equipment described macro base station or the carrying of described subscriber equipment is switched to other home base stations.
10. method as claimed in claim 9, is characterized in that, described macro base station determines that carrying handoff failure occurs subscriber equipment when carrying is switched to home base stations, comprising:
Described macro base station is not received the RB switching response message from described subscriber equipment after switch overtime, determines that carrying handoff failure occurs described subscriber equipment when carrying is switched to home base stations; Or
Described macro base station, after the radio bearer RB switch failure information of receiving from described subscriber equipment, determines that carrying handoff failure occurs described subscriber equipment when carrying is switched to home base stations.
11. methods as claimed in claim 9, is characterized in that, described macro base station also comprises before determining that carrying handoff failure occurs subscriber equipment when carrying is switched to home base stations:
Described macro base station is notified the duration of described subscriber equipment switching timer.
12. methods as claimed in claim 9, is characterized in that, described macro base station remains on described macro base station by the carrying of described subscriber equipment, comprising:
Described macro base station recovers before described subscriber equipment carrying is switched to configure at the Data Radio Bearer DRB of described macro base station.
13. methods as claimed in claim 12, is characterized in that, described macro base station also comprises after recovering the front configuration of the DRB at described macro base station of described subscriber equipment carrying switching:
DRB transmission between described macro base station recovery and described subscriber equipment.
14. methods as claimed in claim 9, is characterized in that, described macro base station is switched to other home base stations by the carrying of described subscriber equipment, comprising:
Described macro base station notifies described subscriber equipment to initiate access to standby home base stations.
15. methods as claimed in claim 9, is characterized in that, described macro base station also comprises after determining that carrying handoff failure occurs subscriber equipment when carrying is switched to home base stations:
Described macro base station is notified described home base stations to delete the context of described subscriber equipment and is released to the Radio Resource of described user equipment allocation.
16. methods as described in as arbitrary in claim 9～15, is characterized in that, carrying is switched only has DRB to switch; Or carrying switching has DRB and Signaling Radio Bearer SRB to switch.
17. 1 kinds of subscriber equipmenies that carry switching, is characterized in that, this subscriber equipment comprises:
, for determining, when carrying is switched to home base stations, there is carrying handoff failure in the first determination module;
The first processing module, for remaining on carrying macro base station or being switched to other home base stations.
18. subscriber equipmenies as claimed in claim 17, is characterized in that, described the first determination module specifically for:
The described home base stations of unsuccessful access 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 described macro base station, determine carrying handoff failure occurs when carrying is switched to home base stations.
19. subscriber equipmenies as claimed in claim 18, is characterized in that, described the first determination module also for:
According to the duration of described macro base station notice, described switching timer is set.
20. subscriber equipmenies as claimed in claim 18, is characterized in that, described the first determination module also for:
The described home base stations of unsuccessful access after switch overtime, determines when carrying is switched to home base stations and, after generation carrying handoff failure, to described macro base station, reports carrying handoff failure.
21. subscriber equipmenies as claimed in claim 17, is characterized in that, described the first processing module remains on macro base station according to following manner by carrying:
Recovering bearing configures at the Data Radio Bearer DRB of macro base station before switching.
22. subscriber equipmenies as claimed in claim 21, is characterized in that, described the first processing module also for:
After recovering bearing is switched the front configuration of the DRB at macro base station, the DRB transmission between recovery and described macro base station.
23. subscriber equipmenies as claimed in claim 17, is characterized in that, described the first processing module is switched to other home base stations according to following manner by carrying:
After the radio bearer RB reconfiguration message of receiving from described macro base station, to standby home base stations, initiate access.
24. 1 kinds of macro base stations that carry switching, is characterized in that, this macro base station comprises:
The second determination module, for determining that carrying handoff failure occurs subscriber equipment when carrying is switched to home base stations;
The second processing module, for remaining on the carrying of described subscriber equipment described macro base station or the carrying of described subscriber equipment being switched to other home base stations.
25. macro base stations as claimed in claim 24, is characterized in that, described the second determination module specifically for:
After switch overtime, do not receive the radio bearer RB switching response message from described subscriber equipment, determine that carrying handoff failure occurs described subscriber equipment when carrying is switched to home base stations; Or after the RB switch failure information of receiving from described subscriber equipment, determine that carrying handoff failure occurs described subscriber equipment when carrying is switched to home base stations.
26. macro base stations as claimed in claim 24, is characterized in that, described the second determination module also for:
Notify the duration of described subscriber equipment switching timer.
27. macro base stations as claimed in claim 24, is characterized in that, described the second processing module remains on described macro base station according to following manner by the carrying of described subscriber equipment:
Recover before described subscriber equipment carrying is switched to configure at the Data Radio Bearer DRB of described macro base station.
28. macro base stations as claimed in claim 27, is characterized in that, described the second processing module also for:
After recovering the front configuration of the DRB at described macro base station of described subscriber equipment carrying switching, the DRB transmission between recovery and described subscriber equipment.
29. macro base stations as claimed in claim 24, is characterized in that, described the second processing module is switched to other home base stations according to following manner by the carrying of described subscriber equipment:
Notify described subscriber equipment to initiate access to standby home base stations.
30. macro base stations as claimed in claim 24, is characterized in that, described the second processing module also for:
After determining that carrying handoff failure occurs subscriber equipment when carrying is switched to home base stations, notify described home base stations to delete the context of described subscriber equipment and be released to the Radio Resource of described user equipment allocation.
31. 1 kinds of systems of carrying switching, is characterized in that, this system comprises:
Macro base station, for determining that carrying handoff failure occurs subscriber equipment when carrying is switched to home base stations, remains on the carrying of described subscriber equipment described macro base station or the carrying of described subscriber equipment is switched to other home base stations;
, there is carrying handoff failure for determining in subscriber equipment, carrying is remained on to macro base station or is switched to other home base stations when carrying is switched to home base stations.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210251894.2A CN103582050B (en) | 2012-07-19 | 2012-07-19 | A kind of method, system and the equipment of carrying switching |
| PCT/CN2013/079178 WO2014012454A1 (en) | 2012-07-19 | 2013-07-11 | Bearer switch method, system and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210251894.2A CN103582050B (en) | 2012-07-19 | 2012-07-19 | A kind of method, system and the equipment of carrying switching |
Publications (2)
| Publication Number | Publication Date |
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| CN103582050A true CN103582050A (en) | 2014-02-12 |
| CN103582050B CN103582050B (en) | 2018-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210251894.2A Active CN103582050B (en) | 2012-07-19 | 2012-07-19 | A kind of method, system and the equipment of carrying switching |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103582050B (en) |
| WO (1) | WO2014012454A1 (en) |
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| US10652784B2 (en) | 2016-09-30 | 2020-05-12 | Huawei Technologies Co., Ltd. | Method and apparatus for serving mobile communication devices using tunneling protocols |
| CN111436073B (en) * | 2019-02-14 | 2022-07-29 | 维沃移动通信有限公司 | Determination method and device |
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Also Published As
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| WO2014012454A1 (en) | 2014-01-23 |
| CN103582050B (en) | 2018-12-11 |
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