CN104010330A - Macro eNB and small cell eNB collaboration method and device thereof - Google Patents
Macro eNB and small cell eNB collaboration method and device thereof Download PDFInfo
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- CN104010330A CN104010330A CN201310059323.3A CN201310059323A CN104010330A CN 104010330 A CN104010330 A CN 104010330A CN 201310059323 A CN201310059323 A CN 201310059323A CN 104010330 A CN104010330 A CN 104010330A
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Abstract
The invention discloses a macro eNB and small cell eNB collaboration method and a device thereof. When a terminal which resides in a macrocell and is in an idle state satisfies triggering conditions, a union connection establishment request is initiated to a macro eNB corresponding to the macrocell; when the union connection establishment is finished, the macro eNB informs a mobile management entity of a small cell eNB which is selected for the terminal and is corresponding to a mini-cell ; the mobile management entity deletes a user plane bearing between the macro eNB and a signaling gateway, establishes a user plane bearing between the small cell eNB and the signaling gateway and controls the macro eNB and the small cell eNB to respectively complete initial context establishment; the terminal completes connection reassortment according to wireless configuration information obtained from the macro eNB; and transceiving of control plane signaling between the terminal and the mobile management entity is carried out through the macro eNB, and transceiving of user plane data between the terminal and the signaling gateway is carried out through random access in the mini-cell. With the application of the above scheme, reasonable collaboration between the macro eNB and the small cell eNB can be realized.
Description
Technical field
The present invention relates to wireless technology, particularly the method and apparatus of macro base station and small base station collaborative work.
Background technology
For sharing the load of macro base station, in prior art, propose, can dispose the small base station (small cell eNB) that two-forty access can be provided in regions such as the focus coverings of macro base station (Macro eNB), the community that small base station is corresponding is called small-cell (small cell), and the community that macro base station is corresponding is called macrocell (Macro cell).
Small cell number under each macro base station may be very large, as tens, therefore, how to make the rational collaborative work of macro base station and small base station, to realize active data shunting etc., will be a problem demanding prompt solution.
Due to the technology that small cell is up-to-date proposition, therefore in prior art, also there is no a kind of effectively settling mode.
Summary of the invention
In view of this, the invention provides the method and apparatus of macro base station and small base station collaborative work, can realize the rational collaborative work between macro base station and small base station.
In order to achieve the above object, technical scheme of the present invention is achieved in that
A method for macro base station and small base station collaborative work, comprising:
In the time that one resides in macrocell that the terminal in idle condition meets trigger condition, initiate to combine to macro base station corresponding to described macrocell and connect the request of foundation;
After combining and connecting and has set up, the radio configuration information that described terminal basis is obtained from described macro base station completes connection reprovision;
Described terminal is carried out the transmitting-receiving of chain of command signaling by described macro base station, and by being that its selected small-cell is accessed at random at described macro base station, carries out the transmitting-receiving of user face data.
A method for macro base station and small base station collaborative work, comprising:
Macro base station receives and resides in macrocell combining to connect to set up and asking of initiating when the terminal in idle condition meets trigger condition when one, when combine connect set up after, will notify to mobile management entity for selected small base station corresponding to small-cell of described terminal;
Described macro base station completes initial context and sets up under the control of described mobile management entity, and sends radio configuration information to described terminal;
Described macro base station assists described terminal to carry out the transmitting-receiving of chain of command signaling.
A method for macro base station and small base station collaborative work, comprising:
Mobile management entity receives macro base station and connects the notification message having sent after having set up combining, and carries described macro base station and be to initiate to combine to connect the information of setting up small base station corresponding to the selected small-cell of the terminal of asking in described notification message;
Described mobile management entity is deleted the user plane bearer between described macro base station and SGW, and sets up the user plane bearer between described small base station and described SGW;
Described in described mobile management entity control, macro base station and described small base station complete initial context foundation;
Described mobile management entity is by carrying out the transmitting-receiving of chain of command signaling between described macro base station and described terminal.
A method for macro base station and small base station collaborative work, comprising:
Small base station is set up the user plane bearer between SGW, and under the control of mobile management entity, completes initial context foundation;
Complete to combine to connect and set up and connect the terminal of reprovision after subordinate small-cell is accessed at random when one, described small base station assists described terminal to complete the user face data transmitting-receiving between described SGW.
A kind of terminal, comprising:
The first processing module, for residing in macrocell when described terminal and in idle condition, while meeting trigger condition, initiates to combine to macro base station corresponding to described macrocell and connects the request of foundation; And complete connection reprovision according to the radio configuration information that is obtained from described macro base station;
The second processing module, for carry out the transmitting-receiving of chain of command signaling by described macro base station, and by being that its selected small-cell is accessed at random at described macro base station, carries out the transmitting-receiving of user face data.
A kind of macro base station, comprising:
The 3rd processing module, for receive when one reside in that macrocell initiates in the time that the terminal of idle condition meets trigger condition combine to connect to set up and ask, when combine connect set up after, will notify to mobile management entity for selected small base station corresponding to small-cell of described terminal;
The 4th processing module, sets up for complete initial context under the control of described mobile management entity, and sends radio configuration information to described terminal;
The 5th processing module, for assisting described terminal to carry out the transmitting-receiving of chain of command signaling.
A kind of mobile management entity, comprising:
The 6th processing module, connects the notification message having sent after having set up for receiving macro base station combining, and carries described macro base station and be to initiate to combine to connect the information of setting up small base station corresponding to the selected small-cell of the terminal of asking in described notification message; Delete the user plane bearer between described macro base station and SGW, and set up the user plane bearer between described small base station and described SGW;
The 7th processing module, completes initial context foundation for controlling described macro base station and described small base station;
The 8th processing module, for by the transmitting-receiving of carrying out chain of command signaling between described macro base station and described terminal.
A kind of small base station, comprising:
The 9th processing module for setting up the user plane bearer between SGW, and completes initial context foundation under the control of mobile management entity;
The tenth processing module, for completing to combine to connect and set up and connect the terminal of reprovision after subordinate small-cell is accessed at random when one, assists described terminal to complete the user face data transmitting-receiving between described SGW.
Visible, adopt scheme of the present invention, can make chain of command signaling eat dishes without rice or wine to send at macro base station, user face data sends in small-cell, thereby both can be by service distributing to small base station, can avoid again connection building process long etc., thereby realize the reasonable collaborative work of macro base station and small base station.
Brief description of the drawings
Fig. 1 is signaling flow in scheme of the present invention and the transmission means schematic diagram of data flow.
Fig. 2 is the flow chart of the embodiment of the method for macro base station of the present invention and small base station collaborative work.
Fig. 3 is signaling and the transfer of data flow process schematic diagram of correspondence embodiment illustrated in fig. 2.
Embodiment
For problems of the prior art, the scheme of a kind of macro base station and small base station collaborative work is proposed in the present invention, wherein, chain of command signaling can eat dishes without rice or wine to send at macro base station, and user face data can send at small cell.
For realizing scheme of the present invention, small base station and SGW (SGW, Signal Gateway) between need there is interface in the user plane (S1-U), that is to say, the user face data of small cell can directly send by the S1-U interface between small base station and SGW, acts on behalf of without macro base station.Fig. 1 is signaling flow in scheme of the present invention and the transmission means schematic diagram of data flow.
For make technical scheme of the present invention clearer, understand, referring to the accompanying drawing embodiment that develops simultaneously, scheme of the present invention is described in further detail.
Fig. 2 is the flow chart of the embodiment of the method for macro base station of the present invention and small base station collaborative work.As shown in Figure 2, comprising:
Step 21: reside in macrocell in the time that the terminal (UE, User Equipment) of idle (Idle) state meets trigger condition when one, initiate to combine to macro base station corresponding to place macrocell and connect the request of foundation.
For the terminal in idle condition, conventionally only in macrocell, carry out resident, and can initiate to adhere to by macro base station/Non-Access Stratum (NAS, the Non-Access Stratum) mobility management process such as detachment process, tracking area update process, specific implementation is prior art.
Terminal, except detecting the signal quality of macrocell, also needs the signal quality of the small cell that detects macro base station appointment, and described detection is generally periodically and detects.
In the time that terminal has data will send or receive beep-page message, can think and meet trigger condition, correspondingly, initiate to combine to connect to set up to macro base station corresponding to place macrocell and ask, wherein portability has signal quality, the cell ID of each small cell and the QoS of this business (QoS, Quality of Service) etc. of the up-to-date each small cell detecting.
Step 22: when combine connect set up after, macro base station will be notified to mobile management entity (MME, Mobility Management Entity) for selected small base station corresponding to small cell of terminal.
What macro base station received that terminal sends combine connect the request of foundation after, can determine and need to carry out associated working with small cell according to the QoS of survice wherein carrying, and can carry out following processing:
1) macro base station sends to combine to connect to terminal and sets up message;
2) the associating connection setup complete message that macro base station receiving terminal returns, combines to connect and has set up.Or, can carry out following processing:
1) macro base station is the selected small cell of terminal, and sends and connect the request of foundation to small base station corresponding to this small cell;
In actual applications, macro base station can be according to selected small cell such as the loads of combining the each small cell that connects the signal quality of the each small cell carrying in the request of foundation and get receiving, be Terminal Service by this small cell, and send and connect the request of foundation to small base station corresponding to this small cell, wherein portability has the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (C-RNTI, Cell Radio Network Temporary Identifier) of terminal etc.;
2) acknowledge message is set up in the connection that macro base station reception small base station returns;
3) macro base station sends to combine to connect to terminal and sets up message;
4) the associating connection setup complete message that macro base station receiving terminal returns, combines to connect and has set up.
Small base station returns to connect sets up acknowledge message, represents that selected small cell can provide service for terminal.
If macro base station can know that selected small cell can provide service for terminal by alternate manner, can carry out step from acknowledge message to the connection that small base station transmission connection foundation is asked and reception small base station returns that set up.
Terminal returns to portability in the associating connection setup complete message of macro base station initial NAS signaling, macro base station receives after associating connection setup complete message, can initial NAS signaling wherein be sent to MME by initial UE message (Initial UE Message), simultaneously, in this initial UE message, also need to carry mark or the address information of the small base station that the selected small cell of macro base station is corresponding, so that MME locates this small base station.Which kind of MME carries out according to the initial NAS signaling receiving and is treated to prior art.
Step 23:MME deletes the user plane bearer between macro base station and SGW, and sets up the user plane bearer between small base station and SGW.
The specific implementation of this step is similarly prior art.
Step 24:MME controls macro base station and small base station completes respectively initial context foundation.
In actual applications, this step at least can have following two kinds of implementations.
One) mode one
1) MME sends initial context to macro base station and sets up request;
Initial context is set up portability in request to be had for the chain of command carrying configuration information of macro base station and carries configuration information for the service surface of small base station;
2) macro base station is set up and has been asked initial context to be set up according to the initial context receiving, and the initial context the receiving request of setting up is transmitted to small base station;
The initial context that macro base station can storing received arrives is set up request, and can carry out chain of command carrying configuration etc. according to it, completes initial context to set up, and in addition, also needs the initial context the receiving request of setting up to be transmitted to small base station;
3) small base station is set up and has been asked initial context to be set up according to the initial context receiving, and determines that initial context need to be set up to response message returns to macro base station or MME;
The initial context that small base station can storing received arrives is set up request, and can carry out service surface carrying configuration etc. according to it, completes initial context to set up;
4) if need to return to macro base station, small base station returns to initial context to macro base station and sets up response (INITIAL CONTEXT SETUP RESPONSE) message, and macro base station further returns to initial context to MME and sets up response message;
If need to return to MME, small base station returns to initial context to MME and sets up response message, and macro base station, after the initial context of self has been set up, can return to initial context to MME and set up response message.
Two) mode two
1) MME sends initial context foundation request to macro base station and small base station respectively;
Wherein, send to the initial context of macro base station to set up in request and can only carry the chain of command carrying configuration information for macro base station, send to the initial context of small base station to set up in request and can only carry the service surface carrying configuration information for small base station;
2) macro base station is set up and has been asked initial context to be set up according to the initial context receiving, and returns to initial context to MME and set up response message;
3) small base station is set up and has been asked initial context to be set up according to the initial context receiving, and returns to initial context to MME and set up response message.
Step 25: terminal completes connection reprovision according to the radio configuration information that is obtained from macro base station.
In actual applications, this step at least can have following two kinds of implementations.
One) mode one
1) the small base station side radio configuration information for terminal distribution is sent to macro base station by small base station;
2) macro base station sends and connects reprovision order to terminal, wherein carries macro base station and be the macro base station side radio configuration information of terminal distribution and small base station side radio configuration information that small base station is terminal distribution;
3) terminal completes connection reprovision according to the radio configuration information that receives, and returns and connect reprovision and complete order to macro base station.
Two) mode two
1) macro base station sends and connects reprovision order to terminal, wherein carries macro base station and be the macro base station side radio configuration information of terminal distribution and small base station side radio configuration information that macro base station is terminal distribution;
2) terminal completes connection reprovision according to the radio configuration information that receives, and returns and connect reprovision and complete order to macro base station.
How terminal connects reprovision is prior art.
Step 26: terminal is carried out the transmitting-receiving of chain of command signaling by macro base station, and access at random by the small cell selected, and between SGW, carry out the transmitting-receiving of user face data.
Described chain of command signaling mainly comprises: NAS signaling and Radio Resource control (RRC, Radio Resource Control) signaling.
One) for NAS signaling
1) mode one
Up direction, NAS signaling is sent to macro base station by terminal, and the NAS signaling receiving is sent to small base station by macro base station, and the NAS signaling receiving is sent to MME by small base station;
Down direction, NAS signaling is sent to small base station by MME, and the NAS signaling receiving is sent to macro base station by small base station, and the NAS signaling receiving is sent to terminal by macro base station.
2) mode two
Up direction, NAS signaling is sent to macro base station by terminal, and the NAS signaling receiving is directly sent to MME by macro base station;
Down direction, NAS signaling is directly sent to macro base station by MME, and the NAS signaling receiving is sent to terminal by macro base station.
Two) for RRC signaling
Up direction, RRC signaling is sent to macro base station by terminal, and the RRC signaling receiving is sent to small base station by macro base station;
Down direction, RRC signaling is sent to macro base station by small base station, and the RRC signaling receiving is sent to terminal by macro base station.
Between terminal and macro base station, can eat dishes without rice or wine to carry out Signalling exchange by macro base station, between small base station and MME, can carry out Signalling exchange by S1-C interface.
In addition, for user face data, terminal can access at random at selected small cell, and and SGW between carry out the transmitting-receiving of user face data.
Comprehensive above-mentioned introduction, the signaling that Fig. 3 is correspondence embodiment illustrated in fig. 2 and transfer of data flow process schematic diagram.Wherein, initial context shown in Fig. 3 is set up in mode one, supposes that small base station need to set up response message by initial context and send to macro base station.
The present invention discloses a kind of terminal, a kind of macro base station, a kind of mobile management entity and a kind of small base station, be described below respectively.
In described terminal, can comprise:
The first processing module, for residing in macrocell when terminal and in idle condition, while meeting trigger condition, initiates to combine to macro base station corresponding to macrocell and connects the request of foundation; And complete connection reprovision according to the radio configuration information that is obtained from macro base station;
The second processing module, for carry out the transmitting-receiving of chain of command signaling by macro base station, and by being that its selected small-cell is accessed at random at macro base station, carries out the transmitting-receiving of user face data.
In described macro base station, can comprise:
The 3rd processing module, for receive when one reside in that macrocell initiates in the time that the terminal of idle condition meets trigger condition combine to connect to set up and ask, when combine connect set up after, will notify to mobile management entity for selected small base station corresponding to small-cell of terminal;
The 4th processing module, sets up for complete initial context under the control of mobile management entity, and sends radio configuration information to terminal;
The 5th processing module, for assisting terminal to carry out the transmitting-receiving of chain of command signaling.
The 3rd processing module can be further used for,
Connect after the request of foundation combining that terminal initiates receiving, send to combine to connect to terminal and set up message, and the associating connection setup complete message that returns of receiving terminal, combine to connect and set up;
Or,
Connecting after the request of foundation combining that terminal initiates receiving, is the selected small-cell of terminal, and to small-cell, corresponding small base station sends and connects the request of foundation, and receives the connection that small base station returns and set up acknowledge message; Send to combine to connect to terminal and set up message, and the associating connection setup complete message that returns of receiving terminal, combine to connect and set up.
The 4th processing module receives the initial context foundation request that mobile management entity sends, and sets up and has asked initial context to be set up, and the initial context receiving is set up and asked to be transmitted to small base station according to the initial context receiving; If determine and need to wait for that small base station returns to initial context and sets up response message, in the time receiving initial context that small base station returns and set up response message, return to initial context to mobile management entity and set up response message, otherwise, after initial context has been set up, return to initial context to mobile management entity and set up response message;
Or,
The 4th processing module receives the initial context foundation request that mobile management entity sends, and sets up and has asked initial context to be set up, and return to initial context to mobile management entity and set up response message according to the initial context receiving.
In addition, the 4th processing module can send and connect reprovision order to terminal, wherein carry macro base station side radio configuration information and the small base station side radio configuration information of promising terminal distribution, and receiving terminal completes and connects the connection reprovision returning after reprovision and complete order according to the radio configuration information that receives;
Wherein, macro base station side radio configuration information is the 4th processing module assignment; Small base station side radio configuration information is the 4th to process module assignment, or for sending to the 4th processing module after small base station distribution.
For Non-Access Stratum signaling,
Up direction, the 5th processing module sends to mobile management entity by the Non-Access Stratum signaling that is received from terminal by small base station;
Down direction, the 5th processing module receives the Non-Access Stratum signaling that mobile management entity sends by small base station, sends to terminal;
Or,
Up direction, the Non-Access Stratum signaling that is received from terminal is sent to mobile management entity by the 5th processing module;
Down direction, the 5th processing module receives the Non-Access Stratum signaling that mobile management entity sends, and sends to terminal;
For radio resource control signaling,
Up direction, the radio resource control signaling that is received from terminal is sent to small base station by the 5th processing module;
Down direction, the 5th processing module receives the radio resource control signaling that small base station sends, and sends to terminal.
In described mobile management entity, can comprise:
The 6th processing module, connects the notification message having sent after having set up for receiving macro base station combining, and carries macro base station and be to initiate to combine to connect the information of setting up small base station corresponding to the selected small-cell of the terminal of asking in described notification message; Delete the user plane bearer between macro base station and SGW, and set up the user plane bearer between small base station and SGW;
The 7th processing module, completes initial context foundation for controlling macro base station and small base station;
The 8th processing module, for by the transmitting-receiving of carrying out chain of command signaling between macro base station and terminal.
The 7th processing module sends initial context to macro base station and sets up request, and receives the initial context that macro base station returns and set up response message, or, receive the initial context that macro base station and small base station return respectively and set up response message;
Or,
The 7th processing module sends respectively initial context to macro base station and small base station and sets up request, and receives the initial context that macro base station and small base station return respectively and set up response message.
In described small base station, can comprise:
The 9th processing module for setting up the user plane bearer between SGW, and completes initial context foundation under the control of mobile management entity;
The tenth processing module, for completing to combine to connect and set up and connect the terminal of reprovision after subordinate small-cell is accessed at random when one, assists terminal to complete the user face data transmitting-receiving between SGW.
The 9th processing module receives the initial context foundation request that macro base station sends, set up and asked initial context to be set up according to the initial context receiving, and determine that initial context need to be set up to response message returns to macro base station or mobile management entity; If return to macro base station, return to initial context to macro base station and set up response message; If return to mobile management entity, return to initial context to mobile management entity and set up response message;
Or,
The 9th processing module receives the initial context foundation request that mobile management entity sends, and sets up and has asked initial context to be set up, and return to initial context to mobile management entity and set up response message according to the initial context receiving.
The specific works flow process of above-mentioned each device embodiment please refer to the respective description in preceding method embodiment, repeats no more herein.
In sum, these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (20)
1. a method for macro base station and small base station collaborative work, is characterized in that, comprising:
In the time that one resides in macrocell that the terminal in idle condition meets trigger condition, initiate to combine to macro base station corresponding to described macrocell and connect the request of foundation;
After combining and connecting and has set up, the radio configuration information that described terminal basis is obtained from described macro base station completes connection reprovision;
Described terminal is carried out the transmitting-receiving of chain of command signaling by described macro base station, and by being that its selected small-cell is accessed at random at described macro base station, carries out the transmitting-receiving of user face data.
2. a method for macro base station and small base station collaborative work, is characterized in that, comprising:
Macro base station receives and resides in macrocell combining to connect to set up and asking of initiating when the terminal in idle condition meets trigger condition when one, when combine connect set up after, will notify to mobile management entity for selected small base station corresponding to small-cell of described terminal;
Described macro base station completes initial context and sets up under the control of described mobile management entity, and sends radio configuration information to described terminal;
Described macro base station assists described terminal to carry out the transmitting-receiving of chain of command signaling.
3. method according to claim 2, is characterized in that, described macro base station further comprises after receiving and combining connection foundation request:
Described macro base station sends to combine to connect to described terminal sets up message, and receives the associating connection setup complete message that described terminal is returned, and combines to connect and has set up;
Or,
Described macro base station is the selected small-cell of described terminal, and to described small-cell, corresponding small base station sends and connects the request of foundation, and receives the connection that described small base station returns and set up acknowledge message; Send to combine to connect to described terminal and set up message, and receive the associating connection setup complete message that described terminal is returned, combine to connect and set up.
4. method according to claim 2, is characterized in that, described macro base station completes initial context foundation and comprises under the control of described mobile management entity:
Described macro base station receives the initial context foundation request that described mobile management entity sends, and sets up and has asked initial context to be set up, and the initial context receiving is set up and asked to be transmitted to described small base station according to the initial context receiving; If determine and need to wait for that described small base station returns to initial context and sets up response message, in the time receiving initial context that described small base station returns and set up response message, return to initial context to described mobile management entity and set up response message, otherwise, after initial context has been set up, return to initial context to described mobile management entity and set up response message;
Or,
Described macro base station receives the initial context foundation request that described mobile management entity sends, and sets up and has asked initial context to be set up, and return to initial context to described mobile management entity and set up response message according to the initial context receiving.
5. method according to claim 2, is characterized in that, described macro base station sends radio configuration information to described terminal and comprises:
Described macro base station sends and connects reprovision order to described terminal, wherein carry macro base station side radio configuration information and the small base station side radio configuration information of promising described terminal distribution, and receive described terminal and complete and connect the connection reprovision returning after reprovision and complete order according to the radio configuration information receiving;
Wherein, described macro base station side radio configuration information is that described macro base station distributes; Described small base station side radio configuration information is that described macro base station distributes, or is to send to described macro base station after described small base station distributes.
6. method according to claim 2, is characterized in that, the transmitting-receiving that described macro base station assists described terminal to carry out chain of command signaling comprises:
For Non-Access Stratum signaling,
Up direction, described macro base station sends to described mobile management entity by the Non-Access Stratum signaling that is received from described terminal by described small base station;
Down direction, described macro base station receives the Non-Access Stratum signaling that described mobile management entity sends by described small base station, sends to described terminal;
Or,
Up direction, the Non-Access Stratum signaling that is received from described terminal is sent to described mobile management entity by described macro base station;
Down direction, described macro base station receives the Non-Access Stratum signaling that described mobile management entity sends, and sends to described terminal;
For radio resource control signaling,
Up direction, the radio resource control signaling that is received from described terminal is sent to described small base station by described macro base station;
Down direction, described macro base station receives the radio resource control signaling that described small base station sends, and sends to described terminal.
7. a method for macro base station and small base station collaborative work, is characterized in that, comprising:
Mobile management entity receives macro base station and connects the notification message having sent after having set up combining, and carries described macro base station and be to initiate to combine to connect the information of setting up small base station corresponding to the selected small-cell of the terminal of asking in described notification message;
Described mobile management entity is deleted the user plane bearer between described macro base station and SGW, and sets up the user plane bearer between described small base station and described SGW;
Described in described mobile management entity control, macro base station and described small base station complete initial context foundation;
Described mobile management entity is by carrying out the transmitting-receiving of chain of command signaling between described macro base station and described terminal.
8. method according to claim 7, is characterized in that, macro base station and described small base station complete initial context and set up and comprise described in described mobile management entity control:
Described mobile management entity sends initial context to described macro base station and sets up request, and receive the initial context that described macro base station returns and set up response message, or, receive the initial context that described macro base station and described small base station return respectively and set up response message;
Or,
Described mobile management entity sends respectively initial context to described macro base station and described small base station and sets up request, and receives the initial context that described macro base station and described small base station return respectively and set up response message.
9. a method for macro base station and small base station collaborative work, is characterized in that, comprising:
Small base station is set up the user plane bearer between SGW, and under the control of mobile management entity, completes initial context foundation;
Complete to combine to connect and set up and connect the terminal of reprovision after subordinate small-cell is accessed at random when one, described small base station assists described terminal to complete the user face data transmitting-receiving between described SGW.
10. method according to claim 9, is characterized in that, described small base station completes initial context foundation and comprises under the control of mobile management entity:
Described small base station receives the initial context foundation request that macro base station sends, set up and asked initial context to be set up according to the initial context receiving, and determine that initial context need to be set up to response message returns to described macro base station or described mobile management entity; If return to described macro base station, return to initial context to described macro base station and set up response message; If return to described mobile management entity, return to initial context to described mobile management entity and set up response message;
Or,
Described small base station receives the initial context foundation request that described mobile management entity sends, and sets up and has asked initial context to be set up, and return to initial context to described mobile management entity and set up response message according to the initial context receiving.
11. 1 kinds of terminals, is characterized in that, comprising:
The first processing module, for residing in macrocell when described terminal and in idle condition, while meeting trigger condition, initiates to combine to macro base station corresponding to described macrocell and connects the request of foundation; And complete connection reprovision according to the radio configuration information that is obtained from described macro base station;
The second processing module, for carry out the transmitting-receiving of chain of command signaling by described macro base station, and by being that its selected small-cell is accessed at random at described macro base station, carries out the transmitting-receiving of user face data.
12. 1 kinds of macro base stations, is characterized in that, comprising:
The 3rd processing module, for receive when one reside in that macrocell initiates in the time that the terminal of idle condition meets trigger condition combine to connect to set up and ask, when combine connect set up after, will notify to mobile management entity for selected small base station corresponding to small-cell of described terminal;
The 4th processing module, sets up for complete initial context under the control of described mobile management entity, and sends radio configuration information to described terminal;
The 5th processing module, for assisting described terminal to carry out the transmitting-receiving of chain of command signaling.
13. macro base stations according to claim 12, is characterized in that, described the 3rd processing module is further used for,
Set up after request in the connection of combining that receives described terminal initiation, combine connection to described terminal transmission and set up message, and receive the associating connection setup complete message that described terminal is returned, combine connection and set up;
Or,
Connecting after the request of foundation combining that described terminal initiates receiving, is the selected small-cell of described terminal, and to described small-cell, corresponding small base station sends and connects the request of foundation, and receives the connection that described small base station returns and set up acknowledge message; Send to combine to connect to described terminal and set up message, and receive the associating connection setup complete message that described terminal is returned, combine to connect and set up.
14. macro base stations according to claim 12, is characterized in that,
Described the 4th processing module receives the initial context foundation request that mobile management entity sends, and sets up and has asked initial context to be set up, and the initial context receiving is set up and asked to be transmitted to described small base station according to the initial context receiving; If determine and need to wait for that described small base station returns to initial context and sets up response message, in the time receiving initial context that described small base station returns and set up response message, return to initial context to described mobile management entity and set up response message, otherwise, after initial context has been set up, return to initial context to described mobile management entity and set up response message;
Or,
Described the 4th processing module receives the initial context foundation request that described mobile management entity sends, set up and asked initial context to be set up according to the initial context receiving, and return to initial context to described mobile management entity and set up response message.
15. macro base stations according to claim 12, is characterized in that,
Described the 4th processing module sends and connects reprovision order to described terminal, wherein carry macro base station side radio configuration information and the small base station side radio configuration information of promising described terminal distribution, and receive described terminal and complete and connect the connection reprovision returning after reprovision and complete order according to the radio configuration information receiving;
Wherein, described macro base station side radio configuration information is described the 4th processing module assignment; Described small base station side radio configuration information is described the 4th processing module assignment, or is to send to described the 4th processing module after described small base station distributes.
16. macro base stations according to claim 12, is characterized in that,
For Non-Access Stratum signaling,
Up direction, described the 5th processing module sends to described mobile management entity by the Non-Access Stratum signaling that is received from described terminal by described small base station;
Down direction, described the 5th processing module receives the Non-Access Stratum signaling that described mobile management entity sends by described small base station, sends to described terminal;
Or,
Up direction, the Non-Access Stratum signaling that is received from described terminal is sent to described mobile management entity by described the 5th processing module;
Down direction, described the 5th processing module receives the Non-Access Stratum signaling that described mobile management entity sends, and sends to described terminal;
For radio resource control signaling,
Up direction, the radio resource control signaling that is received from described terminal is sent to described small base station by described the 5th processing module;
Down direction, described the 5th processing module receives the radio resource control signaling that described small base station sends, and sends to described terminal.
17. 1 kinds of mobile management entities, is characterized in that, comprising:
The 6th processing module, connects the notification message having sent after having set up for receiving macro base station combining, and carries described macro base station and be to initiate to combine to connect the information of setting up small base station corresponding to the selected small-cell of the terminal of asking in described notification message; Delete the user plane bearer between described macro base station and SGW, and set up the user plane bearer between described small base station and described SGW;
The 7th processing module, completes initial context foundation for controlling described macro base station and described small base station;
The 8th processing module, for by the transmitting-receiving of carrying out chain of command signaling between described macro base station and described terminal.
18. mobile management entities according to claim 17, is characterized in that,
Described the 7th processing module sends initial context to described macro base station and sets up request, and receive the initial context that described macro base station returns and set up response message, or, receive the initial context that described macro base station and described small base station return respectively and set up response message;
Or,
Described the 7th processing module sends respectively initial context to described macro base station and described small base station and sets up request, and receives the initial context that described macro base station and described small base station return respectively and set up response message.
19. 1 kinds of small base stations, is characterized in that, comprising:
The 9th processing module for setting up the user plane bearer between SGW, and completes initial context foundation under the control of mobile management entity;
The tenth processing module, for completing to combine to connect and set up and connect the terminal of reprovision after subordinate small-cell is accessed at random when one, assists described terminal to complete the user face data transmitting-receiving between described SGW.
20. small base stations according to claim 19, is characterized in that,
Described the 9th processing module receives the initial context foundation request that macro base station sends, set up and asked initial context to be set up according to the initial context receiving, and determine that initial context need to be set up to response message returns to described macro base station or described mobile management entity; If return to described macro base station, return to initial context to described macro base station and set up response message; If return to described mobile management entity, return to initial context to described mobile management entity and set up response message;
Or,
Described the 9th processing module receives the initial context foundation request that described mobile management entity sends, set up and asked initial context to be set up according to the initial context receiving, and return to initial context to described mobile management entity and set up response message.
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