Embodiment
The frequency of switching between the community (being Macro eNB community) of Macro eNB control and the community (being Local eNB community) of Local eNB control in order to reduce UE, user's face network design mode separated with chain of command is introduced into.Referring to two kinds of user's faces of Fig. 5 and Fig. 6 network design mode separated with chain of command, under two kinds of network design scenes shown in Fig. 5 and Fig. 6, when UE is when only having the region of Macro eNB community covering, the chain of command of UE and user's face are all connected to Macro eNB; When UE moves to the region of Macro eNB community and the overlapping covering in Local eNB community, all or part of carrying of user's face of UE is transferred to Local eNB, to obtain higher service transmission rate; And the carrying of the chain of command of UE still remains on Macro eNB, to prevent that chain of command from connecting handoff failure and causing UE call drop, realize the functions such as mobile management.
Under user's face of UE scene separated with chain of command, UE is connected to two or more eNB simultaneously.Referring to Fig. 7, UE is connected with Local eNB with Macro simultaneously, obtains respectively chain of command and is connected with user's face.
Under user's face of UE scene separated with chain of command, the protocol stack between UE and network is referring to Fig. 8 and Fig. 9.User's face eNB(Local eNB of UE), for UE provides user plane data transfer function, the rrc layer that it does not have with UE equity, can not carry out RRC control to UE; The chain of command eNB(Macro eNB of UE), for UE provides chain of command transmission of messages function, in order to realize the carrying of RRC message and processing, the chain of command eNB of UE 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 network architecture separated with chain of command, the present invention adopts corresponding with it carrying changing method.
Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.
Referring to Figure 10, the embodiment of the present invention is carried the separated method of switching, and now subscriber equipment enters in macro base station and target BS (being home base stations) overlapping covered, and the method comprises the following steps:
Step 101, subscriber equipment are after the carrying separation order of receiving from macro base station, the configuration information of the target BS after switching according to this subscriber equipment comprising in this carrying separation order, sets up the MAC layer entity and corresponding MAC layer entity and the PHY entity of PHY entity that comprise with target BS;
Wherein, for the carrying that need to be separated to target BS, can by carrying separation order, notify this subscriber equipment by macro base station, also can in agreement, stipulate, can also be mutual agreement;
Further, the carrying that needs to be separated to target BS in subscriber equipment can be part or all of DRB, and all SRB of subscriber equipment still remain on macro base station; Or
In subscriber equipment, need to be separated in the carrying of target BS and both comprised part or all of DRB, comprise again part SRB, and the part SRB of subscriber equipment still remains on macro base station.
Further, it can be RB(radio bearer that macro base station sends carrying separation order) switching message, wherein, the identification information that carrying comprises this target BS in separation order, be used to indicate the information of the carrying that need to be separated to this target BS and the configuration information of target BS;
Wherein, the identification information of target BS can be frequency and physical-layer cell identifier (the Physical Cell ID of this target BS support, PCI), can be also E-UTRAN Cell Global Identifier corresponding to this target BS (E-UTRAN Cell Global ID, ECGI);
The configuration information of target BS comprises MAC resource distribution and the PHY resource distribution of target BS.
If desired the part that is carried as that is separated to target BS is carried, carry and in separation order, be used to indicate the identification information that the information of the carrying that need to be separated to target BS is every carrying, for example, what be if desired separated to target BS is carried as part DRB, carries and in separation order, is used to indicate the identification information that the information of the carrying that need to be separated to target BS is every DRB;
If desired be separated to the whole DRB of being carried as of target BS, carrying the information that is used to indicate the carrying that need to be separated to target BS in separation order can be the identification information of every DRB, also can be for being used to indicate separated indication information all by whole DRB, for example, can adopt the information of 1bit, with equipment for indicating user, whole DRB are transferred to target BS.
Further, in this carrying separation order, can also comprise a kind of or combination in following message:
Need to be separated to RLC configuration information and the PDCP configuration information of the carrying correspondence of this target BS;
The timer information relevant with Radio Link Failure (Radio Link Failure, RLF) in this target BS;
The Restriction of the Measuring subframe of this target BS, for eliminating area interference, disturbs and eliminates (enhanced Conference on Intelligent Computing, eICIC) as enhancement type district;
The Serving cell Scell configuration of this target BS, for carrying out carrier aggregation at target BS;
For accessing the dedicated preamble preamble of this target BS; And
The Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of target BS.
The carrying handover success message that the carrying separation order that embodiment of the present invention macro base station sends and subscriber equipment send can, for the RRC message (as RRC connects reallocation message) of having stipulated in existing protocol, can be also the RRC message of new definition.
The carrying that step 102, subscriber equipment need to be separated to this target BS is mapped to MAC layer entity and the PHY entity that this target BS is corresponding, so that subscriber equipment successfully accesses after described target BS, can utilize to be separated to the carrying of this target BS and MAC layer entity corresponding to this target BS and PHY entity and this target BS and to communicate;
In force, the carrying that in step 102, subscriber equipment need to be separated to target BS is mapped to MAC layer entity and the PHY entity that this target BS is corresponding and comprises following two kinds of modes:
If the RLC configuration information and the PDCP configuration information that comprise the carrying correspondence that need to be separated to target BS in mode one carrying separation order, the carrying that in step 102, subscriber equipment need to be separated to target BS is mapped to MAC layer entity and the PHY entity that this target BS is corresponding and comprises:
Subscriber equipment is separated to RLC configuration information and the PDCP configuration information of the carrying correspondence of target BS as required, sets up RLC entity and PDCP entity that this target BS is corresponding; And
Subscriber equipment is also mapped to by corresponding RLC entity and the PDCP entity of this target BS MAC layer entity and the PHY entity that this target BS is corresponding.
Concrete, for the carrying being connected with target BS, the RLC entity that subscriber equipment is set up and the data handling procedure of PDCP entity comprise:
RLC entity is delivered to PDCP entity by the RLC SDU receiving from low layer (as MAC layer); The packet (being RLC SDU) that PDCP entity is submitted RLC according to header compression algorithm (not the header compression algorithm before separation) is separated head compression and is processed, and obtains corresponding PDCP SDU, and PDCP SDU is delivered to high level (as IP layer) processes.
If do not comprise RLC configuration information and the PDCP configuration information of the carrying correspondence that need to be separated to target BS in mode two carrying separation orders, subscriber equipment only need to change the mapping relations of RLC entity and PDCP entity and the MAC entity of the carrying correspondence that need to be separated to target BS, and RLC entity and the PDCP entity that soon need to be separated to the carrying correspondence of target BS are mapped to the MAC entity that target BS is corresponding.
Step 103, subscriber equipment maintenance are connected with described macro base station, and access described target BS.
Wherein, access procedure comprises that up/down row is synchronous etc.
Further, in step 103, subscriber equipment access target BS comprises following three kinds of modes:
If mode A macro base station is synchronizeed with target BS, subscriber equipment access target BS comprises:
Subscriber equipment determines that self successfully accesses target BS.
If mode B macro base station and target BS are asynchronous, and the dedicated preamble preamble that comprises target BS in carrying separation order, subscriber equipment access target BS comprises:
Subscriber equipment, according to this dedicated preamble, adopts non-competing Random Access access target BS.
If mode C macro base station and target BS are asynchronous, and carry the dedicated preamble that does not comprise target BS in separation order, subscriber equipment access target BS comprises:
Subscriber equipment adopts competition Random Access access target BS;
Wherein, in competition random access procedure, in the message m sg3 that subscriber equipment sends to target BS, carry the identification information of subscriber equipment; This msg3 can be the RRC message of new definition or the control unit (MAC Control Element, MAC CE) of media access control layer;
Target BS, after receiving msg3, carries the acknowledge message that this msg3 is corresponding to subscriber equipment in the msg4 returning, or MAC CE, and uplink scheduling information wherein, adopts C-RNTI scheduling msg4.
Further, definite, self successfully access after target BS, the method also comprises:
Subscriber equipment sends carrying handover success message to macro base station.
The carrying handover success message that the carrying separation order that embodiment of the present invention macro base station sends and subscriber equipment send can, for the RRC message (as RRC connects reallocation message) of having stipulated in existing protocol, can be also the RRC message of new definition.
Referring to Figure 11, the embodiment of the present invention is carried the separated method of switching, and comprises the following steps:
Step 111, macro base station determine that subscriber equipment need to carry separated switching;
Step 112, macro base station send carrying separation order to subscriber equipment, with equipment for indicating user, according to carrying separation order, carry separated switching.
Accordingly, subscriber equipment carries separated switching and comprises: set up MAC layer entity and PHY entity that target BS is corresponding; The carrying that need to be separated to target BS is mapped to MAC layer entity and the PHY entity that this target BS is corresponding; And being connected of maintenance and macro base station, and access target BS.
Further, this carrying separation order can be that RB carrying switches message, wherein, the identification information that comprises target BS, is used to indicate the information of the carrying that need to be separated to target BS and the configuration information of target BS in carrying separation order;
Wherein, the identification information of target BS can, for frequency and the PCI of this target BS support, can be also ECGI;
The configuration information of target BS comprises MAC resource distribution and the PHY resource distribution of target BS.
Further, in this carrying separation order, can also comprise a kind of or combination in following message:
Need to be separated to RLC configuration information and the PDCP configuration information of the carrying correspondence of this target BS;
The timer information relevant to RLF in this target BS;
The Restriction of the Measuring subframe of this target BS;
The Serving cell Scell configuration of this target BS;
For accessing the dedicated preamble of this target BS; And
Target cell Radio Network Temporary Identifier C-RNTI.
Further, the carrying that needs to be separated to this target BS in subscriber equipment can be part or all of DRB, and the SRB of subscriber equipment still remains on macro base station; Or
In subscriber equipment, need the carrying that is separated to this target BS both to comprise part or all of DRB, comprise again part SRB.
Further, in step 111, macro base station, according to a kind of or combination in following three kinds of modes, determines that subscriber equipment need to carry separated switching:
Mode 1, according to the measurement of subscriber equipment, report, determine whether subscriber equipment needs to carry separated switching;
Concrete, macro base station can report the signal strength signal intensity of middle home base stations community according to the measurement of UE, determine whether subscriber equipment needs to carry separated switching;
For example, if having at least the signal strength signal intensity of a home base stations community to be greater than the intensity threshold of setting, determine that subscriber equipment need to carry separated switching, and using this home base stations as target BS, carry separated switching; If the signal strength signal intensity of all home base stations community is not more than this intensity threshold, determine that subscriber equipment does not need to carry separated switching;
If the quantity of home base stations is at least two, and the community that signal strength signal intensity is greater than this intensity threshold lays respectively at different home base stations, therefrom selects the home base stations at the place, community of signal strength signal intensity maximum to carry separated switching as target BS.
Mode 2, according to the positional information of subscriber equipment, determine whether subscriber equipment needs to carry separated switching;
Concrete, when the distance between subscriber equipment and home base stations community is less than the distance threshold of certain setting, macro base station determines that subscriber equipment need to carry separated switching.
Mode 3, according to the business information of subscriber equipment, determine whether subscriber equipment needs to carry separated switching;
Concrete, if certain traffic needs of subscriber equipment is larger, and low to delay requirement, determine that subscriber equipment need to carry separated switching.
Below for the network scenarios shown in Figure 12 (UE moves to the overlapping covered of Macro eNB and Local eNB from the overlay area of Macro eNB), and take UE and part or all of DRB need to be separated to Local eNB as example, the embodiment of the present invention is carried to the separated process of switching and be elaborated.
Example one,
Referring to Figure 13, the present embodiment carries the separated method of switching, and is applied to UE and is positioned at the overlapping covered of macrocell (macro cell) and target local community (target local cell), and the method comprises the following steps:
Step 131, macro cell judge whether connected UE needs to carry separated switching;
If so, perform step 132;
If not, process ends.
Preferably, macro cell can report according to the measurement of UE, the positional information of UE or the business information of UE, determines whether this UE needs to carry separated switching.
Step 132, macro cell send carrying separation order (for example " RB switches message ") to UE, wherein, in this carrying separation order, at least comprise: the sign of target local cell, be used to indicate UE and need to be separated to the indication information of the carrying of target local cell, the configuration information of target local cell;
Further, the configuration information of target local cell comprises MAC resource distribution and the physical layer resources configuration of target local cell.
For example, macro cell is definite transfers to local cell by the part or all of DRB of UE, and the SRB of UE is still remained on to macro cell.
Further, this RB switches a kind of feasible implementation that message adopts RRC message: the configuration information of macro eNB and local eNB is the separate configuration parameters of two covers, and UE can carry out parameter configuration to macro and entity (as MAC layer entity and physical layer entity) corresponding to local respectively according to the different configuration parameter of the macro eNB comprising in this RRC message and local eNB.
Step 133, UE are after the carrying separation order of receiving from macro cell, set up MAC layer entity and PHY entity that target local cell is corresponding, and according to the MAC resource distribution of target local cell in carrying separation order and physical layer resources configuration, newly-established MAC layer entity and PHY entity are configured;
PDCP entity and RLC entity that step 134, UE need to be separated to the DRB of target local cell are mapped to MAC layer entity and the PHY entity that target local cell is corresponding;
Concrete, if comprise in carrying separation order, need to be separated to RLC/PDCP configuration corresponding to DRB of target local cell, UE rebuilds the RLC/PDCP entity that this DRB is corresponding;
If do not comprise in carrying separation order, need to be separated to the RLC/PDCP configuration that the DRB of target local cell is corresponding, UE only need change needs RLC/PDCP entity that separated DRB is corresponding and the mapping relations of MAC entity.
Step 135, UE judge whether macro cell synchronizes with local cell;
If so, perform step 136;
If not, perform step 137;
Step 136, UE determine that self successfully accesses local cell, and perform step 138;
Step 137, UE initiate access to target local cell;
Wherein, access procedure comprises that up/down row is synchronous etc.; When UE be successfully completed synchronous with the up/down row of target local cell after, UE determines access target Local eNB success.
Further, if comprise for accessing the dedicated preamble preamble of target local cell in carrying separation order (being that RB switches message), UE, according to this dedicated preamble, adopts the mode of non-competing random access to access this target local cell;
If do not comprise for accessing the dedicated preamble of target local cell in carrying separation order (being that RB switches message), UE adopts competition Random Access to access this target local cell; Wherein, the msg3(message 3 that UE sends to target local cell) in, carry the identification information of UE, as C-RNTI; And target local cell is according to the msg3 receiving, in the msg4 returning, carry RRC acknowledge message or MAC CE or UL grant that msg3 is corresponding;
Preferably, this msg3 can be RRC message or the MAC CE of new definition; Msg4 itself is used C-RNTI scheduling.
Step 138, UE, after access target local cell, return to carrying handover success message (as " RB handover success message ") to macro eNB.
It should be noted that, the carrying separation order in the present embodiment and carrying handover success message can be the RRC message of new definition, also can use defined RRC message in agreement, as RRC connects reallocation message.
Referring to Figure 14, a kind of method that converges switching of carrying of the embodiment of the present invention, wherein the carrying of the part of subscriber equipment is connected with macro base station, and all the other carryings are connected with home base stations, and the method comprises the following steps:
Step 141, subscriber equipment are after the carrying aggregate command of receiving from macro base station, according to this carrying aggregate command, the MAC layer entity that reprovision home base stations is corresponding and PHY entity;
Step 142, subscriber equipment are according to the configuration information of the macro base station in carrying aggregate command, and the carrying that need to converge to macro base station is mapped to MAC layer entity and the PHY entity that this macro base station is corresponding;
Concrete, PDCP entity and RLC entity that subscriber equipment need to converge to the carrying of macro base station are mapped to MAC layer entity and the PHY entity that this macro base station is corresponding.
Further, this carrying aggregate command can be switched message for RB, in this carrying aggregate command, comprises the configuration information that is used to indicate the information of the carrying that need to converge to macro base station, the configuration information of macro base station and home base stations;
Wherein, while if desired converging to the part carrying in the carrying that being carried as of macro base station be separated to home base stations, the identification information that the information that is used to indicate the carrying that need to be separated to macro base station is every carrying; During whole carrying in the carrying that need to converge to being carried as of macro base station and be separated to home base stations, the information that is used to indicate the carrying that need to converge to home base stations is indication information, for example, can adopt the information of 1bit will all carry and transfer to macro base station with equipment for indicating user;
Further, the MAC layer entity that in step 141, subscriber equipment reprovision home base stations is corresponding and PHY entity comprise following two kinds of situations:
If situation one carrying aggregate command indication need to converge to the part carrying that being carried as of macro base station is separated to this home base stations, the MAC layer entity that subscriber equipment reprovision home base stations is corresponding and PHY entity, comprising:
Subscriber equipment is according to the configuration information of the home base stations in carrying aggregate command, the MAC layer entity that reprovision home base stations is corresponding and PHY entity.
If situation two carrying aggregate command indications need to converge to whole carryings that being carried as of macro base station is separated to this home base stations, the MAC layer entity that subscriber equipment reprovision home base stations is corresponding and PHY entity, comprising:
Subscriber equipment is deleted corresponding MAC layer entity and the PHY entity of home base stations having generated.
Further, if be separated to the carrying of home base stations, also comprise part SRB, and need to converge to whole DRB that being carried as of macro base station is separated to home base stations, in step 141, also comprise:
Subscriber equipment is deleted corresponding SRB and the relevant configuration information thereof of home base stations having generated.
After step 142, the method also comprises:
Subscriber equipment sends carrying handover success message to macro base station.
It should be noted that, carry aggregate command and carry the RRC message that handover success message can be new definition in the present embodiment, can be also defined RRC message in existing protocol, as RRC connects reallocation message.
It should be noted that, the method that switching is converged in the separated method of switching of carrying shown in Figure 10 and the carrying shown in Figure 14 can be synthesized a flow process, forms the method that another carrying is switched, and comprises that the separated handoff procedure of carrying and carrying converge handoff procedure;
Wherein, the RB from macro base station that in the method that carrying is switched, subscriber equipment is received switches message, in carrying the separated process of switching, is carrying separation order, is carrying aggregate command in carrying the process that converges switching.
It should be noted that, the separated method of switching of carrying shown in Figure 10 can be synthesized a flow process with the method for the separated switching of the carrying shown in Figure 11, form the separated method of switching of another carrying, first perform step 111 ~ step 113, then perform step 101 ~ step 103.
Referring to Figure 15, a kind of method that converges switching of carrying of the embodiment of the present invention, wherein the carrying of the part of subscriber equipment is connected with macro base station, and all the other carryings are connected with target BS, and the method comprises the following steps:
Step 151, macro base station are determined that subscriber equipment need to carry and are converged switching;
Step 152, macro base station send carrying aggregate command to subscriber equipment, to indicate this subscriber equipment to carry and converge switching according to carrying aggregate command.
Accordingly, subscriber equipment carries to converge to switch according to carrying aggregate command and comprises: subscriber equipment carries aggregate command according to this, corresponding MAC layer entity and the PHY entity of configuration target BS; The carrying that need to converge to macro base station is mapped to MAC layer entity and the PHY entity that this macro base station is corresponding.
Further, carrying aggregate command is that RB switches message, in this carrying aggregate command, comprises the configuration information that is used to indicate the information of the carrying that need to converge to macro base station, the configuration information of macro base station and target BS;
Wherein, while if desired converging to the part carrying in the carrying that being carried as of macro base station be separated to home base stations, the identification information that the information that is used to indicate the carrying that need to be separated to macro base station is every carrying; During whole carrying in the carrying that need to converge to being carried as of macro base station and be separated to home base stations, the information that is used to indicate the carrying that need to converge to target BS is indication information, for example, can adopt the information of 1bit will all carry and transfer to macro base station with equipment for indicating user.
Further, in step 151, macro base station determines that according to a kind of or combination in following three kinds of methods subscriber equipment need to carry separated switching:
Method 1, according to the measurement of subscriber equipment, report, determine whether subscriber equipment needs to carry to converge switching;
Concrete, macro base station can report the signal strength signal intensity of the community that middle target BS controls according to the measurement of UE, determines whether subscriber equipment needs to carry to converge switching;
For example, if having at least the signal strength signal intensity of a Target cell to be greater than the intensity threshold of setting, determine that subscriber equipment does not need to carry to converge switching; If the signal strength signal intensity of all Target cells is all not more than this intensity threshold, definite subscriber equipment need to carry and converge switching.
Method 2, according to the positional information of subscriber equipment, determine whether subscriber equipment needs to carry to converge switching;
Concrete, when the distance between subscriber equipment and Target cell is greater than the distance threshold of certain setting, macro base station is determined that subscriber equipment need to carry and is converged switching.
Method 3, according to the business information of subscriber equipment, determine whether subscriber equipment needs to carry to converge switching;
Concrete, if the business of subscriber equipment is high to delay requirement, definite subscriber equipment need to carry and converge switching.
It should be noted that, the method that switching is converged in the separated method of switching of carrying shown in Figure 11 and the carrying shown in Figure 14 can be synthesized a flow process, forms the method that another carrying is switched, and comprises that the separated handoff procedure of carrying and carrying converge handoff procedure;
Wherein, the RB from macro base station that in the method that carrying is switched, subscriber equipment is received switches message, in carrying the separated process of switching, is carrying separation order, is carrying aggregate command in carrying the process that converges switching.
It should be noted that, the method that switching is converged in the separated method of switching of carrying shown in Figure 14 and the carrying shown in Figure 15 can be synthesized a flow process, form another carrying and converge the method for switching, first perform step 151 ~ step 152, then perform step 141 ~ step 142.
It should be noted that, the method for Figure 10, Figure 11, Figure 14 and Figure 15 can be synthesized a flow process, forms the method that another carrying is switched, and comprises that the separated handoff procedure of carrying and carrying converge handoff procedure.
For the network scenarios shown in Fig. 7, (all SRB of UE are connected with macro cell below, a DRB part of UE is connected with macro cell, another part is connected with local cell), the embodiment of the present invention is carried to the process that converges switching and be elaborated.
Example two,
Referring to Figure 16, the present embodiment carries the method that converges switching, is applied to UE and is positioned at the overlapping covered of macrocell (macro cell) and target local community (target local cell), and the method comprises the following steps:
Step 161, macro cell judge whether connected UE needs to carry and converge switching;
If so, perform step 162;
If not, process ends.
Preferably, macro cell can report according to the measurement of UE, the positional information of UE or the business information of UE, determines whether this UE needs to carry to converge switching.
Step 162, macro cell send carrying aggregate command (for example " RB switches message ") to UE, wherein, in this carrying aggregate command, comprise the configuration information that is used to indicate the information of the carrying that need to converge to macro cell, the configuration information of macro cell and local cell;
Further, the configuration information of macro cell comprises MAC resource distribution and the physical layer resources configuration of macro cell; The configuration information of local cell comprises MAC resource distribution and the physical layer resources configuration of local cell.
Step 163, according to this carrying aggregate command, corresponding MAC layer entity and the PHY entity of local cell that generated of configuration;
Concrete, if desired converging to the part DRB that being carried as of macro cell is separated to this local cell, the MAC layer entity that user device configuration local cell is corresponding and PHY entity, comprising:
Subscriber equipment is according to the configuration information of home base stations, the MAC layer entity that reprovision home base stations is corresponding and PHY entity.
If desired converge to whole DRB that being carried as of macro cell is separated to this local cell, the MAC layer entity that user device configuration local cell is corresponding and PHY entity, comprising:
Subscriber equipment is deleted corresponding MAC layer entity and the PHY entity of local cell having generated.
Step 164, UE return to carrying handover success message to macro cell, as " RB handover success message ".
In the present embodiment, carrying aggregate command and carry the RRC message that handover success message can be new definition, can be also defined RRC message in existing protocol, as RRC connects reallocation message.
It should be noted that, if the part in the SRB of UE is connected with macro cell, another part is connected with local cell; And the part in the DRB of UE is connected with macro cell, under the network scenarios that another part is connected with local cell, referring to Figure 17, in the time need to converging to being carried as of macro cell and be separated to whole DRB of this local cell, subscriber equipment, when deleting the MAC layer entity and PHY entity that the local cell generated is corresponding, also needs to delete SRB and the relevant configuration information thereof that local cell is corresponding.
Based on same inventive concept, a kind of separated subscriber equipment switching that carries is also provided in the embodiment of the present invention, because the principle that this subscriber equipment is dealt with problems is similar with the method for carrying separated switching shown in Figure 10, therefore should can, referring to the enforcement of method, repeat part and repeat no more for the enforcement of equipment.
Referring to Figure 18, the embodiment of the present invention is carried the separated subscriber equipment switching, and comprising:
The first processing module 181, for after the carrying separation order of receiving from macro base station, the configuration information of the target BS after switching according to this subscriber equipment comprising in described carrying separation order, sets up the MAC layer entity and corresponding MAC layer entity and the PHY entity of PHY entity difference that comprise with target BS;
The carrying that wherein, need to be separated to target BS comprises part or all of DRB; Or
The carrying that need to be separated to target BS comprises part DRB and part SRB; Or
The carrying that need to be separated to target BS comprises whole DRB and part SRB.
The first mapping block 182, the carrying that need to be separated to target BS is mapped to MAC layer entity and the PHY entity that this target BS is corresponding;
Access module 183, for keeping and being connected of described macro base station, and accesses described target BS.
Further, carrying separation order can be for " RB switches message, the identification information that comprises target BS, is used to indicate the information of the carrying that need to be separated to target BS and the configuration information of target BS in this carrying separation order;
Accordingly, the first 182 of moulds of mapping specifically for:
The carrying of indicating in this carrying separation order is mapped to MAC layer entity and the PHY entity that target BS is corresponding.
Further, in carrying separation order, also comprise a kind of or combination in following message:
The wireless link that need to be separated to the carrying correspondence of target BS controls timer information relevant to RLF in RLC configuration information and packet data polymerized agreement PDCP configuration information, target BS, the Restriction of the Measuring subframe of target BS, the Serving cell Scell of target BS configuration, for accessing the dedicated preamble of target BS and the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of target BS.
Further, the first mapping block 182 specifically for:
In carrying, comprise in separation order need to be separated to RLC configuration information that the DRB of target BS is corresponding and PDCP configuration information time, be separated to as required corresponding RLC configuration information and the PDCP configuration information of DRB of target BS, set up RLC entity and PDCP entity that target BS is corresponding, and corresponding RLC entity and the PDCP entity of target BS is mapped to MAC layer entity and the PHY entity that this target BS is corresponding.
Further, the first mapping block 182 specifically for:
In carrying, do not comprise in separation order need to be separated to RLC configuration information that the DRB of target BS is corresponding and PDCP configuration information time, corresponding RLC entity and the PDCP entity of DRB that need to be separated to target BS is mapped to MAC layer entity and the PHY entity that this target BS is corresponding.
Further, access module 183 specifically for:
When described macro base station is synchronizeed with described target BS, determine that self successfully accesses described target BS;
Asynchronous with described target BS at described macro base station, and during the dedicated preamble that comprises described target BS in described carrying separation order, according to described dedicated preamble, adopt non-competing Random Access to access described target BS;
Asynchronous with described target BS at described macro base station, and if while not comprising the dedicated preamble of described target BS in described carrying separation order, adopt competition Random Access to access described target BS.
Further, this subscriber equipment also comprises:
The first sending module 184, for self successfully accessing after described target BS definite, sends carrying handover success message to described macro base station.
The carrying handover success message that the carrying separation order that embodiment of the present invention macro base station sends and subscriber equipment send can, for the RRC message (as RRC connects reallocation message) of having stipulated in existing protocol, can be also the RRC message of new definition.
Based on same inventive concept, a kind of separated macro base station switching that carries is also provided in the embodiment of the present invention, because the principle that this macro base station is dealt with problems is similar with the method for carrying separated switching shown in Figure 11, therefore should can, referring to the enforcement of method, repeat part and repeat no more for the enforcement of macro base station.
Referring to Figure 19, the embodiment of the present invention is carried the separated macro base station switching, and comprising:
The first judging module 191, determines that subscriber equipment need to carry separated switching;
The first indicating module 192, for send carrying separation order to subscriber equipment, carries separated switching with equipment for indicating user according to carrying separation order.
Wherein, this carrying separation order can switch message for RB, the identification information that carrying comprises target BS in separation order, is used to indicate the information of the carrying that need to be separated to target BS and the configuration information of target BS;
Further, in this carrying separation order, can also comprise a kind of or combination in following message:
Need to be separated to RLC configuration information and the PDCP configuration information of the carrying correspondence of this target BS;
The timer information relevant to RLF in this target BS;
The Restriction of the Measuring subframe of this target BS;
The Serving cell Scell configuration of this target BS;
For accessing the dedicated preamble of this target BS; And
Target cell Radio Network Temporary Identifier C-RNTI.
Further, the first judging module 191 specifically for:
According to the measurement of subscriber equipment report, a kind of or combination in positional information and business information, determine that subscriber equipment need to carry separated switching.
Based on same inventive concept, a kind of subscriber equipment that converges switching that carries is also provided in the embodiment of the present invention, the method that the principle of dealing with problems due to this subscriber equipment converges switching to the carrying out carrying shown in Figure 14 is similar, therefore the enforcement of this subscriber equipment can, referring to the enforcement of method, repeat part and repeat no more.
Referring to Figure 20, the embodiment of the present invention is carried the subscriber equipment that converges switching, comprising:
Configuration module 201, after the carrying aggregate command receiving from macro base station, according to carrying aggregate command, the MAC layer entity that reprovision home base stations is corresponding and PHY entity;
The second mapping block 202, for according to the configuration information of carrying aggregate command macro base station, the carrying that need to converge to macro base station is mapped to MAC layer entity and the PHY entity that this macro base station is corresponding.
Further, carrying aggregate command is that RB switches message, in this carrying aggregate command, comprises the configuration information that is used to indicate the information of the carrying that need to converge to macro base station, the configuration information of macro base station and target BS.
Further, configuration module 201 specifically for:
When carrying aggregate command indication need to converge to the part carrying in the carrying that being carried as of macro base station be separated to home base stations, according to the configuration information of the home base stations in carrying aggregate command, the MAC layer entity that reprovision home base stations is corresponding and PHY entity.
Further, configuration module 201 specifically for:
When carrying aggregate command indication need to converge to the whole carrying in the carrying that being carried as of macro base station be separated to home base stations, delete corresponding all MAC layer entities and the PHY entity of home base stations.
Further, this subscriber equipment also comprises:
The second sending module 203, for sending carrying handover success message to macro base station.
It should be noted that, each module shown in each module shown in Figure 18 and Figure 20 can be integrated in a subscriber equipment, and when needs carry separated switching, each module shown in Figure 18 is carried out work; When needs carry, converge while switching, each module shown in Figure 20 is carried out work;
Wherein, the RB from macro base station that subscriber equipment is received switches message, in carrying the separated process of switching, is carrying separation order, is carrying aggregate command in carrying the process that converges switching.
Based on same inventive concept, a kind of macro base station that converges switching that carries is also provided in the embodiment of the present invention, the method that the principle of dealing with problems due to this macro base station converges switching to the carrying out carrying shown in Figure 15 is similar, therefore the enforcement of this macro base station can, referring to the enforcement of method, repeat part and repeat no more.
Referring to Figure 21, the embodiment of the present invention, carry the macro base station that converges switching, comprising:
The second judging module 211, converges switching for determining that subscriber equipment need to carry;
The second indicating module 212, for send carrying aggregate command to subscriber equipment, carries and converges switching according to carrying aggregate command with equipment for indicating user.
Further, carrying aggregate command is that RB switches message, in this carrying aggregate command, comprises the configuration information that is used to indicate the information of the carrying that need to converge to macro base station, the configuration information of macro base station and target BS.
Further, the second judging module 211 specifically for:
According to the measurement of subscriber equipment report, a kind of or combination in positional information and business information, determine that this subscriber equipment need to carry to converge switching.
It should be noted that, each module shown in each module shown in Figure 19 and Figure 21 can be integrated in a macro base station, and when needs carry separated switching, each module shown in Figure 19 is carried out work; When needs carry, converge while switching, each module shown in Figure 21 is carried out work;
Wherein, the RB that macro base station sends switches message, in carrying the separated process of switching, is carrying separation order, is carrying aggregate command in carrying the process that converges switching.
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.
The embodiment of the present invention has realized carrying handoff functionality, has further reached the object that user plane bearer and chain of command carrying are separated and converge; Owing to having reduced the number of times that subscriber equipment carries out chain of command switching, thereby in the network architecture of E-UTRAN in the switching frequency of subscriber equipment and number of times increase situation, reduced the risk that communication disruption occurs subscriber equipment when switching.
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.