CN104066199B - Pass through the method and grand evolution base station of small cell data transmission - Google Patents
Pass through the method and grand evolution base station of small cell data transmission Download PDFInfo
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- CN104066199B CN104066199B CN201310086592.9A CN201310086592A CN104066199B CN 104066199 B CN104066199 B CN 104066199B CN 201310086592 A CN201310086592 A CN 201310086592A CN 104066199 B CN104066199 B CN 104066199B
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- 230000000977 initiatory effect Effects 0.000 claims description 8
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
Abstract
This application provides the method by small cell data transmission and grand evolution base station.Method includes：Request message is set up in the joint connection that grand eNB receptions UE is sent, and sending joint connection to UE sets up message；When receiving the NAS signaling that UE is sent：During service request, the NAS signaling is passed through into MME, the initial context that reception MME is sent sets up request message, radio bearer is mapped to small cell, connection is sent again with order to UE, and the order carries the radio configuration of grand eNB sides and the radio configuration of small cell sides, so as to：UE completes this UE radio configuration, and realize down-going synchronous with small cell eNB according to the radio configuration of grand eNB sides and the radio configuration of small cell sides；When grand eNB receives the business datum from UE that small cell eNB are sent, the business datum is transmitted to SGW；When grand eNB receives the business datum that SGW is sent, the business datum is issued into UE by small cell eNB.The present invention is realized transmits data by small cell.
Description
Technical field
The application is related to wireless technical field, more particularly to passes through cell（small cell）Transmit data method and
Grand evolution base station（ENB, evolved NodeBase）.
Background technology
Focus covering is Long Term Evolution（LTE, Long Term Evolution）The emphasis of consideration, because 90% business is sent out
It is raw therefore to be suggested indoors and hot zones for the small cell for solving focus covering, providing high-speed access, and
In third generation Partnership Program（3GPP, 3th Generation Partner Project）Radio Access Network（RAN, Radio
Access Network）Plenary session is set up the project, and most operators and manufacturer pay special attention to and played an active part in this.Small cell
Enhanced major significance is its Scaledeployment, because the small cell numbers under a grand eNB may be very big, such as：
There are tens, therefore how effectively to handle data distribution, interference problem, mobility problem, work(between grand eNB and small cell
Consumption problem, Cost Problems by be research emphasis.Small cell and current picocell（Picocell）Deng focus covering
Difference be that it is possible to use brand-new technology, including between evolution base station（inter-eNB）Carrier aggregation, it is descending
The redesign of synchronizing signal, part small cell eNB control functions are transferred to grand eNB, etc..
The discussion on small cell has just just started at present, and main direction of studying is to provide grand eNB to small
Cell control function, including business, mobility etc..Possible scheme both can be the carrier aggregation based on inter-eNB come
Realize or realized by the way that small cell part control function is moved into grand eNB.But, specific scheme is real
All do not provide also at present now.
The content of the invention
This application provides by small cell transmit data method and grand eNB, small cell eNB, UE and
LTE system, data are transmitted to realize by small cell.
A kind of method that data are transmitted by cell small cell, is applied to：Small cell evolution base station eNBs with
There is no interface in the user plane between gateway SGW, small cell eNB user plane anchor point is grand eNB Long Term Evolution LTE systems
In system, this method includes：
Request message is set up in the joint connection that grand eNB receptions user equipment (UE) is sent, and sending joint connection foundation to UE disappears
Breath；When receiving the service request that UE is sent, the service request is Non-Access Stratum NAS signaling, and the NAS signaling is passed through into movement
Property management entity MME, receive the initial contexts sent of MME and set up request message, radio bearer is mapped to small cell,
Connection is sent again with order to UE, and the order carries the radio configuration of grand eNB sides and the radio configuration of small cell sides, with
Just：UE completes this UE radio configuration according to the radio configuration of grand eNB sides and the radio configuration of small cell sides, and with
Small cell eNB realize down-going synchronous；
When grand eNB receives the business datum from UE that small cell eNB are sent, the business datum is forwarded
To SGW；When grand eNB receives the business datum that SGW is sent, the business datum is issued into UE by small cell eNB.
The joint connection that the grand eNB receptions user equipment (UE) is sent further comprises before setting up request message：
The UE mobile management message initiated is transmitted to MME by grand eNB.
The signal quality that request message carries the small cell that UE measurements are obtained is set up in the joint connection.
The grand eNB receive the joint connection that user equipment (UE) sends set up request message after, send joint to UE and connect
Connect and further comprise before setting up message：
Grand eNB judge whether to need and meanwhile set up with small cell eNB connection, if so, to small cell eNB
Request message is set up in the connection for initiating to carry UE marks, when confirmation message is set up in the connection for receiving small cell eNB returns
Afterwards, perform described sent to UE and combine the action that message is set up in connection；Otherwise, directly perform it is described to UE send joint connection build
The action of vertical message.
Methods described further comprises：
Grand eNB receives the NAS dedicated bearers generation request message that MME is sent, and the message, which is carried, needs the NAS for issuing UE special
Bearing activation request message is used, the message carries the QoS information of business simultaneously, determined to need industry according to the QoS information of business
Business is diverted on small cell, then S1 carryings is mapped on small cell radio bearer, is then sent and is connected to UE
Again with order, the order carries UE radio configuration and NAS dedicated bearers activation request message, receives the connection weight that UE is returned
With order is completed, return to NAS dedicated bearers to MME and generate response message.
Methods described further comprises：
Grand eNB receives the RRC signaling that UE is sent, and the RRC signaling is passed through into small cell eNB；Grand eNB is received
The RRC signaling that small cell eNB are sent, UE is passed through by the RRC signaling.
A kind of method that data are transmitted by small cell, is applied to：There is no user between small cell eNB and SGW
Face interface, small cell eNB user plane anchor point is in grand eNB LTE system, this method includes：
Small cell eNB receive the business datum that UE is sent, and the business datum is issued into SGW by grand eNB；
Small cell eNB receive the business datum from SGW that grand eNB is sent, and the business datum is transmitted into UE.
Methods described further comprises：
Small cell eNB receive the RRC signaling from UE that grand eNB is sent；
When to send RRC signaling to UE, the RRC signaling is sent to UE by grand eNB.
Methods described further comprises：
Request message is set up in the connection that small cell eNB receive the carrying UE marks that grand eNB is sent, and is returned to grand eNB
Confirmation message is set up in connection.
A kind of method that data are transmitted by small cell, is applied to：There is no user between small cell eNB and SGW
Face interface, small cell eNB user plane anchor point is in grand eNB LTE system, this method includes：
When UE has business datum to send or receive beep-page message, set up request to grand eNB initiation joint connections and disappear
Breath, so as to：Grand eNB initiates connection to small cell eNB and sets up request message；The joint connection that UE receives grand eNB returns is built
Vertical message, service request is sent to grand eNB, and the service request is NAS signaling, so as to：Grand eNB passes through the service request
MME；
UE receives connection that grand eNB sends again with order, the radio configuration of the grand eNB sides carried according to the order with
The radio configuration of small cell sides, completes the radio configuration of itself, and down-going synchronous is realized and random with small cell eNB
Access, begins through small cell eNB and sends business datum, the connection is again with order：Grand eNB receives MME and sent
Initial context set up request message, issue UE's after radio bearer is mapped into small cell.
The UE sends business datum by small cell eNB to be included：
When UE will send business datum, the business datum is sent to small cell eNB, so as to：small cell
The business datum is transmitted to SGW by eNB by grand eNB；
Or, UE receives the business datum that small cell eNB are sent, and the business datum is：SGW is forwarded by grand eNB
To small cell eNB's.
Methods described further comprises：
The connection that the grand eNB of UE receptions is sent is again with order, and the order carries UE radio configuration, the activation of NAS dedicated bearers
Request message, the radio configuration of itself is completed according to the order, and sending NAS dedicated bearers to grand eNB activates confirmation message, with
Small cell eNB realize down-going synchronous and Stochastic accessing, begin through small cell eNB transmission services data.
A kind of grand eNB, the grand eNB are multiple small cell eNB user plane anchor point, and between small cell and SGW
There is no interface in the user plane, the eNB includes：
Joint connection establishment module：Request message is set up in the joint connection that reception UE is sent, and sending joint connection to UE builds
Vertical message；When receiving the service request that UE is sent, the service request is NAS signaling, and the NAS signaling is passed through into MME, connect
The initial context that receipts MME is sent sets up request message, and radio bearer is mapped into small cell, and send connection to UE matches somebody with somebody again
Order, the order carries the radio configuration of grand eNB sides and the radio configuration of small cell sides, so as to：UE is according to grand eNB sides
The radio configuration of radio configuration and small cell sides, completes this UE radio configuration, and under being realized with small cell eNB
Row is synchronous；
Data transmission module：When receiving the business datum from UE that small cell eNB are sent, by the business
Data forwarding is to SGW；When receiving the business datum that SGW is sent, the business datum is issued by small cell eNB
UE。
The joint connection establishment module is further used for,
After receiving the joint connection that UE sends and setting up request message, it is first determined whether need to set up simultaneously with
Small cell eNB connection, if so, initiating connection to small cell eNB sets up request message, when receiving small
The connection that cell eNB are returned is set up after confirmation message, is performed described sent to UE and is combined the action that message is set up in connection；Otherwise,
Directly perform described sent to UE and combine the action that message is set up in connection.
The joint connection establishment module is further used for, and receives the NAS dedicated bearers generation request message that MME is sent,
The message, which is carried, needs the NAS dedicated bearers for issuing UE activation request message, and the message carries the QoS information of business, root simultaneously
Determine to need by service distributing to small cell according to the QoS information of business, then S1 carryings are mapped to small cell's
On radio bearer, connection then is sent again with order to UE, and the order carries UE radio configuration and the activation of NAS dedicated bearers
Request message, receives the connection of UE returns again with order is completed, NAS dedicated bearers generation response message is returned to MME.
The joint connection establishment module is further used for, and receives the RRC signaling that UE is sent, the RRC signaling is passed through
small cell eNB；The RRC signaling that small cell eNB are sent is received, the RRC signaling is passed through into UE.
A kind of small cell eNB, small cell eNB user plane anchor point is grand eNB, the small cell eNB
There is no interface in the user plane between SGW, the small cell eNB include：
Data transmission module：When receiving the business datum that UE is sent, the business datum is issued into SGW by grand eNB；
When receiving the business datum from SGW that grand eNB is sent, the business datum is transmitted to UE.
The small cell eNB further comprise：
RRC signaling transport module：Receive the RRC signaling from UE that grand eNB is sent；When to send RRC signaling to UE,
The RRC signaling is sent to UE by grand eNB.
Characterized in that, the small cell eNB further comprise：
Connection establishment module：When request message is set up in the connection for receiving the carrying UE marks that grand eNB is sent, Xiang Hong
ENB returns to connection and sets up confirmation message.
A kind of UE, is applied to：There is no interface in the user plane, small cell eNB use between small cell eNB and SGW
Family face anchor point is in grand eNB LTE system, the UE includes：
Signalling exchange module：When there is business datum to send or receive beep-page message, joint connection is initiated to grand eNB
Request message is set up, so as to：Grand eNB initiates connection to small cell eNB and sets up request message；Receive the connection that grand eNB is returned
Close connection and set up message, service request is sent to grand eNB, the service request is NAS signaling, so as to：Grand eNB please by the service
Ask and pass through MME；Connection that grand eNB sends is received again with order, the radio configuration of the grand eNB sides carried according to the order with
The radio configuration of small cell sides, completes this UE radio configuration, and down-going synchronous is realized and random with small cell eNB
Access, the connection is again with order：Grand eNB receives the initial context that MME sends and sets up request message, by radio bearer
Issue UE's after being mapped to small cell；
Data interaction module：Business datum is sent by small cell eNB.
The data interaction module is further used for, when business datum to be sent, and the business datum is sent into small
Cell eNB, so as to：The business datum is transmitted to SGW by small cell eNB by grand eNB；Or, receive small
The business datum that cell eNB are sent, the business datum is：SGW is transmitted to small cell eNB's by grand eNB.
The Signalling exchange module is further used for, and the connection that the grand eNB of reception is sent is again with order, and the order carries UE's
Radio configuration, NAS dedicated bearers activation request message, this UE radio configuration is completed according to the order, NAS is sent to grand eNB
Dedicated bearer activates confirmation message, and down-going synchronous and Stochastic accessing are realized with small cell eNB.
A kind of LTE system, including：Grand eNB, small cell eNB, and, grand eNB is small cell eNB user
There is no interface in the user plane between face anchor point, and small cell and SGW, wherein：
Grand eNB：Request message is set up in the joint connection that reception UE is sent, and sending joint connection to UE sets up message；When connecing
Receive the NAS signaling that UE is sent：During service request, the NAS signaling is passed through into MME, the initial context that reception MME is sent is built
Vertical request message, small cell are mapped to by radio bearer, send connection again with order to UE, the order carries grand eNB sides
Radio configuration and small cell sides radio configuration, so as to：Radio configurations and small cell side of the UE according to grand eNB sides
Radio configuration, complete this UE radio configuration, and down-going synchronous is realized with small cell eNB；When receiving small
During the business datum from UE that cell eNB are sent, the business datum is transmitted to SGW；When receiving the business that SGW is sent
During data, the business datum is issued into UE by small cell eNB；
small cell eNB：When receiving the business datum that UE is sent, the business datum is issued by grand eNB
SGW；When receiving the business datum from SGW that grand eNB is sent, the business datum is transmitted to UE.
The grand eNB is further used for, and after receiving the joint connection that UE sends and setting up request message, first determines whether
Whether need while the connection with small cell eNB is set up, if so, initiating connection to small cell eNB sets up request
Message, after confirmation message is set up in the connection for receiving small cell eNB returns, performs described sent to UE and combines connection
Set up the action of message；Otherwise, directly perform described sent to UE and combine the action that message is set up in connection.
The grand eNB is further used for, and receives the NAS dedicated bearers generation request message that MME is sent, the message, which is carried, to be needed
Issue UE NAS message：NAS dedicated bearers activate request message, and the message carries the QoS information of business simultaneously, according to industry
The QoS information of business determines to need by service distributing to small cell, then S1 carryings is mapped into the wireless of small cell
In carrying, connection then is sent again with order to UE, and the order carries UE radio configuration and the activation request of NAS dedicated bearers
Message, receives the connection of UE returns again with order is completed, NAS dedicated bearers generation response message is returned to MME.
The grand eNB is further used for, and receives the RRC signaling that UE is sent, the RRC signaling is passed through into small cell
eNB；The RRC signaling that small cell eNB are sent is received, the RRC signaling is passed through into UE.
The small cell eNB are further used for, and receive the RRC signaling from UE that grand eNB is sent；When will be to UE
When sending RRC signaling, the RRC signaling is sent to UE by grand eNB.
The small cell eNB are further used for, when the connection for receiving the carrying UE marks that grand eNB is sent is set up
During request message, return to connection to grand eNB and set up confirmation message.
As can be seen from the above technical solutions, the present invention by small cell control plane by moving to grand eNB, and counts
Still carried according to plane by small cell, realize and data are transmitted by small cell.
Brief description of the drawings
Fig. 1 is the networking exemplary plot of the application scenarios of the present invention；
Fig. 2 is the method flow diagram provided in an embodiment of the present invention that business data transmission is carried out by small cell；
Fig. 3 is the method flow diagram that UE provided in an embodiment of the present invention activates NAS dedicated bearers；
Fig. 4 is grand eNB provided in an embodiment of the present invention composition schematic diagram.
Embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with the accompanying drawings with specific embodiment pair
The present invention is described in detail.
Fig. 1 is the networking exemplary plot of the application scenarios of the present invention, as shown in figure 1, the application scenarios of the present invention are：small
Cell eNB and gateway（SGW, Serving GateWay）Between there is no user plane interface（That is S1-U interface）, small
Cell eNB user plane anchor point is grand eNB, and grand eNB is responsible for radio bearer being mapped to small cell eNB.
The present invention core concept be：Control signaling eats dishes without rice or wine to send in grand eNB, wherein, control signaling includes Radio Resource
Control（RRC, Radio Resource Control）Signaling and Non-Access Stratum（NAS, Non Access Stratum）Signaling, industry
Data of being engaged in are sent by small cell eNB, and Small cell eNB control message issues user equipment through grand eNB（UE,
User Equipment）, or small cell eNB control function is responsible for by grand eNB.
It is as follows that control signaling sends rule：
UE chain of command is mainly responsible for by grand eNB, includes the transmission of RRC and NAS signaling.Mobility management entity（MME,
Mobility Management Entity）And grand eNB is responsible for UE mobile management such as：Attachment, attachment removal, tracing area are more
Newly（TAU, Tracking Area Update）, cell switching etc. flow.
The transmission rule of NAS signaling is as follows：
Uplink：UE is eated dishes without rice or wine to send NAS signaling to grand eNB, grand eNB and is directly issued the NAS signaling by grand eNB
MME；
Downlink transfer：NAS signaling is issued grand eNB by MME, and the NAS signaling is issued UE by grand eNB.
The transmission rule of RRC signaling is as follows：
1st, grand eNB RRC signaling directly eats dishes without rice or wine to send by grand eNB.
If the 2, thering is RRC signaling to interact between UE and small cell eNB,：
Uplink：RRC signaling is sent to grand eNB, grand eNB the RRC signaling passing through small cell eNB by UE；
Downlink transfer：RRC signaling is passed through grand eNB by small cell eNB, and the RRC signaling is issued UE by grand eNB again.
Business data transmission rule is as follows：
The foundation of service bearer is specially：In addition to wireless side is carried on small cell eNB and set up, other carryings are complete
Portion is in grand eNB, SGW, packet data network gateway（PGW, Packet Data Network Gateway）Between set up.
Uplink business data is transmitted：Business datum is sent to small cell eNB, small cell eNB by industry by UE
Data forwarding of being engaged in gives grand eNB, grand eNB that business datum is issued into SGW again.
Downlink service data is transmitted：Business datum is sent to grand eNB by SGW, and business datum is transmitted to small by grand eNB
Business datum is issued UE by cell eNB, small cell eNB again.
Fig. 2 is the method flow diagram provided in an embodiment of the present invention that business data transmission is carried out by small cell, such as
Shown in Fig. 2, it is comprised the following steps that：
Step 201：It is idle（Idle）The UE of state is resident in macrocell.
The UE of Idle states is only resident in macrocell.
The UE of Idle states to MME can initiate mobile management flow such as by grand eNB：Attachment, attachment removal, tracing area
Renewal, cell switching etc..
Step 202：The UE of Idle states measures the signal quality of macrocell, while detecting small cell signal quality.
Step 203：When UE has business datum to send or receive beep-page message, initiate joint connection to grand eNB and build
Vertical request message, the message carries UE Cell Radio Network Temporary Identifier/Identity, Cell-RNTI（C-RNTI, Cell Radio Network
Temporary Identifier）, and small cell correlation measurement informations, such as signal quality, cell ID, take simultaneously
Band QoS（QoS, Quality of Service）Information etc..
Step 204：Grand eNB receives joint connection and sets up request message, the small cell's carried according to the message
Load of signal quality, QoS of survice information and small cell etc., judges whether to need while setting up and small cell
ENB connection, if so, performing step 205；Otherwise, step 206 is performed.
Step 205：Grand eNB initiates connection to small cell eNB and sets up request message, and the message carries UE C-
RNTI, small cell eNB receive the message, and returning to connection to grand eNB sets up confirmation message.
In actual applications, grand eNB receives joint connection and set up after request message, also can not perform step 204,205,
And directly perform step 206.
Step 206：Grand eNB sends joint connection to UE and sets up message.
Step 207：UE receives joint connection and sets up message, returns to joint connection setup complete message to grand eNB, this disappears
Breath carries NAS signaling.
NAS signaling is such as：Service request（service request）.
Step 208：Grand eNB receives the joint connection setup complete message, and NAS signaling is read from the message, by the NAS
Signaling passes through initial UE message（InitialUEMessage）Pass through MME.
Step 209：MME receives the initial UE message, and sending initial context to grand eNB sets up request message.
Step 210：Grand eNB receives the initial context and sets up request message, and radio bearer is mapped into small cell,
Simultaneous selection provides the UE related context informations that part small cell need, such as UE marks, UE wireless capabilities.
Step 211：Grand eNB sends connection again with order to UE, and the order carries the radio configuration and small of grand eNB sides
The radio configuration of cell sides.
Step 212：UE receives the connection again with order, the radio configuration and small of the grand eNB sides carried according to the order
The radio configuration of cell sides, completes the radio configuration of itself, and connection is sent again with completion order to grand eNB.
Step 213：UE and small cell eNB realize down-going synchronous and Stochastic accessing, begin through small cell
ENB sends business datum.
Step 214：When small cell eNB receive the business datum that UE is sent, the business datum is transmitted to grand
The business datum is issued SGW by eNB, grand eNB again.
Step 215：When SGW will send business datum to UE, business datum is first sent to grand eNB, grand eNB is by the industry
Business datum is issued UE by business data forwarding again to small cell eNB, small cell eNB.
In actual applications, some business need to activate NAS dedicated bearers, given below to implement：
Fig. 3 is the method flow diagram of activation NAS dedicated bearers provided in an embodiment of the present invention, as shown in figure 3, its specific step
It is rapid as follows：
Step 301：MME has found that new business needs to generate NAS dedicated bearers, then sending NAS dedicated bearers to grand eNB generates
Request message, the message, which is carried, to be needed to issue UE NAS message：NAS dedicated bearers activate request message, and the message is carried simultaneously
The QoS information of business.
If UE request activation NAS dedicated bearers, then before this step, UE can send NAS message to MME：Carrying
Resource allocation request message.
Step 302：Grand eNB receive the NAS dedicated bearers generation request message, according to the QoS information of business, itself and
Small cell signal quality, load etc. determine to need by service distributing to small cell, then are mapped to S1 carryings
On small cell radio bearer, connection then is sent again with order to UE, the order carries UE radio configuration, NAS and disappeared
Breath：NAS dedicated bearers activate request message.
Step 303：UE receives the connection again with order, matches somebody with somebody again to grand eNB transmission connections and completes order.
Step 304：Grand eNB receives the connection again with order is completed, and returns to NAS dedicated bearers to MME and generates response message.
Step 305：UE sends NAS message to grand eNB：NAS dedicated bearers activate confirmation message, and grand eNB is held NAS is special
Carry activation confirmation message and be transmitted to MME.
Step 306：UE and small cell eNB realize down-going synchronous and Stochastic accessing, begin through small cell
ENB transmission services data.
Step 307：When small cell eNB receive the business datum that UE is sent, the business datum is transmitted to grand
The business datum is issued SGW by eNB, grand eNB again.
Step 308：When SGW will send business datum to UE, business datum is first sent to grand eNB, grand eNB is by the industry
Business datum is issued UE by business data forwarding again to small cell eNB, small cell eNB.
After the completion of carrying in the embodiment of the present invention is set up, specific schematic diagram is as shown in Figure 1.
Fig. 4 is grand eNB provided in an embodiment of the present invention composition schematic diagram, and the grand eNB is multiple small cell eNB
User plane anchor point, and there is no interface in the user plane between small cell and SGW, as shown in figure 4, the eNB mainly includes：Joint connects
Connect and set up module 41 and data transmission module 42, wherein：
Joint connection establishment module 41：Request message is set up in the joint connection that reception UE is sent, and joint connection is sent to UE
Set up message；When receiving the NAS signaling that UE is sent：During service request, the NAS signaling is passed through into MME, MME is received and sends
Initial context set up request message, radio bearer is mapped to small cell, to UE send connection again with order, the life
Order carries the radio configuration of grand eNB sides and the radio configuration of small cell sides, so as to：UE is according to the radio configurations of grand eNB sides
With the radio configuration of small cell sides, this UE radio configuration is completed, and down-going synchronous is realized with small cell eNB, is connect
The connection of UE returns is received again with order is completed, it is determined that joint connection is successfully established, is sent to data transmission module 42 and combines connection
It is successfully established instruction.
Joint connection establishment module 41 can be further used for, when receive the joint connection that UE sends set up request message it
Afterwards, it is first determined whether needing to set up the connection with small cell eNB simultaneously, if so, initiating to connect to small cell eNB
Connect and set up request message, after confirmation message is set up in the connection for receiving small cell eNB returns, perform to UE and send connection
Close the action that message is set up in connection；Otherwise, directly perform to UE and send the action that message is set up in joint connection.
Joint connection establishment module 41 can be further used for, and the NAS dedicated bearers generation request that reception MME is sent disappears
Breath, the message, which is carried, to be needed to issue UE NAS message：NAS dedicated bearers activate request message, and the message carries business simultaneously
QoS information, determines to need business point according to the QoS information of business, this eNB and small cell signal quality, load etc.
Flow on small cell, then S1 carryings are mapped on small cell radio bearer, then send connection to UE matches somebody with somebody again
Order, the order carries UE radio configuration, NAS message：NAS dedicated bearers activate request message, receive the connection that UE is returned
Again with completing to order, return to NAS dedicated bearers to MME and generate response message, receive the NAS dedicated bearers activation confirmation that UE is sent
Message, MME is transmitted to by NAS dedicated bearers activation confirmation message.
Joint connection establishment module 41 can be further used for, and the RRC signaling that UE is sent be received, by the RRC signaling transparent transmission
Give small cell eNB；The RRC signaling that small cell eNB are sent is received, the RRC signaling is passed through into UE.
Joint connection establishment module 41 can be further used for, and receives the NAS signaling that UE is sent, the NAS signaling is forwarded
To MME；The NAS signaling that MME is sent is received, the NAS signaling is transmitted to UE.
Data transmission module 42：Receive the joint that joint connection establishment module 41 sends and connect and is successfully established instruction, when connecing
When receiving the business datum from UE that small cell eNB are sent, the business datum is transmitted to SGW；When receiving SGW
During the business datum sent, the business datum is issued into UE by small cell eNB.
Small cell eNB provided in an embodiment of the present invention given below composition, the user of the small cell eNB
Face anchor point is grand eNB, does not have interface in the user plane between small the cell eNB and SGW, the small cell eNB mainly include：
Data transmission module and RRC signaling transport module, wherein：
Data transmission module：When receiving the business datum that UE is sent, the business datum is issued into SGW by grand eNB；
When receiving the business datum from SGW that grand eNB is sent, the business datum is transmitted to UE.
RRC signaling transport module：Receive the RRC signaling from UE that grand eNB is sent；When to send RRC signaling to UE,
The RRC signaling is sent to UE by grand eNB.
Small cell eNB can also further comprise：Connection establishment module, the carrying that grand eNB is sent is received for working as
When request message is set up in the connection of UE marks, return to connection to grand eNB and set up confirmation message.
UE provided in an embodiment of the present invention given below composition, the UE includes Signalling exchange module and data interaction mould
Block, wherein：
Signalling exchange module：When there is business datum to send or receive beep-page message, joint connection is initiated to grand eNB
Request message is set up, so as to：Grand eNB initiates connection to small cell eNB and sets up request message；Receive the connection that grand eNB is returned
Close connection and set up message, service request is sent to grand eNB, the service request is NAS signaling, so as to：Grand eNB is by the service request
Pass through MME；Connection that grand eNB sends is received again with order, the radio configuration of the grand eNB sides carried according to the order with
The radio configuration of small cell sides, completes this UE radio configuration, and down-going synchronous is realized and random with small cell eNB
Access, sends synchronous and access to data interaction module and completes to indicate, the connection is again with order：Grand eNB receives MME and sent
Initial context set up request message, issue UE's after radio bearer is mapped into small cell.
Signalling exchange module is further used for, and the connection that the grand eNB of reception is sent is again with order, and the order carries the wireless of UE
Configuration, NAS dedicated bearers activation request message, this UE radio configuration is completed according to the order, and it is special to send NAS to grand eNB
Bearing activation confirmation message, down-going synchronous and Stochastic accessing are realized with small cell eNB.
Data interaction module：Synchronization and access completion instruction that Signalling exchange module is sent are received, when business number to be sent
According to when, the business datum is sent to small cell eNB, so as to：Small cell eNB pass through the business datum grand
ENB is transmitted to SGW；Or, the business datum that small cell eNB are sent is received, the business datum is：SGW passes through grand eNB
It is transmitted to small cell eNB's.
The embodiment of the present invention also provides a kind of LTE system, including above-mentioned grand eNB, small cell eNB and UE.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements done etc. should be included within the scope of protection of the invention.
Claims (22)
1. a kind of method that data are transmitted by cell small cell, it is characterised in that be applied to：Small cell evolution
There is no interface in the user plane between base station eNB and gateway SGW, small cell eNB user plane anchor point is the long-term of grand eNB
In evolution LTE system, this method includes：
Request message is set up in the joint connection that grand eNB receptions user equipment (UE) is sent, and sending joint connection to UE sets up message；When
The service request that UE is sent is received, the service request is Non-Access Stratum NAS signaling, and the NAS signaling is passed through into mobility pipe
Entity MME is managed, the initial context that reception MME is sent sets up request message, radio bearer is mapped into small cell, to UE
Connection is sent again with order, and the order carries the radio configuration of grand eNB sides and the radio configuration of small cell sides, so as to：UE
According to the radio configuration of grand eNB sides and the radio configuration of small cell sides, this UE radio configuration, and and small are completed
Cell eNB realize down-going synchronous；
When grand eNB receives the business datum from UE that small cell eNB are sent, the business datum is transmitted to
SGW；When grand eNB receives the business datum that SGW is sent, the business datum is issued into UE by small cell eNB.
2. according to the method described in claim 1, it is characterised in that the grand eNB receives the joint company that user equipment (UE) is sent
Connect and further comprise before setting up request message：
The UE mobile management message initiated is transmitted to MME by grand eNB.
3. according to the method described in claim 1, it is characterised in that the joint connection is set up request message carrying UE and measured
The small cell arrived signal quality.
4. the method according to claim 1 or 3, it is characterised in that the grand eNB receives the joint that user equipment (UE) is sent
Connection set up request message after, send before message is set up in joint connection and further comprise to UE：
Grand eNB judges whether to need while the connection with small cell eNB is set up, if so, initiating to small cell eNB
Request message is set up in the connection for carrying UE marks, after confirmation message is set up in the connection for receiving small cell eNB returns,
Perform described sent to UE and combine the action that message is set up in connection；Otherwise, directly perform described sent to UE and combine connection foundation
The action of message.
5. according to the method described in claim 1, it is characterised in that methods described further comprises：
Grand eNB receives the NAS dedicated bearers generation request message that MME is sent, and the message, which is carried, needs the NAS for issuing UE is special to hold
Activation request message is carried, the message carries the QoS information of business simultaneously, determined to need business point according to the QoS information of business
Flow on small cell, then S1 carryings are mapped on small cell radio bearer, then send connection to UE matches somebody with somebody again
Order, the order carries UE radio configuration and NAS dedicated bearers activation request message, and the connection for receiving UE returns has been matched somebody with somebody again
Into order, return to NAS dedicated bearers to MME and generate response message.
6. according to the method described in claim 1, it is characterised in that methods described further comprises：
Grand eNB receives the RRC signaling that UE is sent, and the RRC signaling is passed through into small cell eNB；Grand eNB receives small
The RRC signaling that cell eNB are sent, UE is passed through by the RRC signaling.
7. a kind of method that data are transmitted by small cell, it is characterised in that be applied to：Small cell eNB and SGW
Between there is no an interface in the user plane, small cell eNB user plane anchor point is in grand eNB LTE system, this method includes：
When UE has business datum to send or receive beep-page message, initiate joint connection to grand eNB and set up request message, with
Just：Grand eNB initiates connection to small cell eNB and sets up request message；The joint connection foundation that UE receives grand eNB returns disappears
Breath, service request is sent to grand eNB, and the service request is NAS signaling, so as to：The service request is passed through MME by grand eNB；
The connection that the grand eNB of UE receptions is sent is again with order, the radio configuration and small of the grand eNB sides carried according to the order
The radio configuration of cell sides, completes the radio configuration of itself, realizes down-going synchronous and Stochastic accessing with small cell eNB, opens
Begin to send business datum by small cell eNB, the connection is again with order：It is initial that grand eNB receives that MME sends
Context sets up request message, issues UE's after radio bearer is mapped into small cell.
8. method according to claim 7, it is characterised in that the UE sends business datum by small cell eNB
Including：
When UE will send business datum, the business datum is sent to small cell eNB, so as to：small cell eNB
The business datum is transmitted to SGW by grand eNB；
Or, UE receives the business datum that small cell eNB are sent, and the business datum is：SGW is transmitted to by grand eNB
Small cell eNB's.
9. method according to claim 7, it is characterised in that methods described further comprises：
The connection that the grand eNB of UE receptions is sent is again with order, and the order carries UE radio configuration, the activation of NAS dedicated bearers and asked
Message, the radio configuration of itself is completed according to the order, and sending NAS dedicated bearers to grand eNB activates confirmation message, with small
Cell eNB realize down-going synchronous and Stochastic accessing, begin through small cell eNB transmission services data.
10. a kind of grand eNB, it is characterised in that the grand eNB is multiple small cell eNB user plane anchor point, and small
There is no interface in the user plane between cell and SGW, the eNB includes：
Joint connection establishment module：Request message is set up in the joint connection that reception UE is sent, and sending joint connection foundation to UE disappears
Breath；When receiving the service request that UE is sent, the service request is NAS signaling, and the NAS signaling is passed through into MME, is received
The initial context that MME is sent sets up request message, and radio bearer is mapped into small cell, and connection is sent again with life to UE
Order, the order carries the radio configuration of grand eNB sides and the radio configuration of small cell sides, so as to：UE is according to the nothings of grand eNB sides
Line configure with the radio configurations of small cell sides, complete this UE radio configuration, and realize with small cell eNB descending
It is synchronous；
Data transmission module：When receiving the business datum from UE that small cell eNB are sent, by the business datum
It is transmitted to SGW；When receiving the business datum that SGW is sent, the business datum is issued into UE by small cell eNB.
11. grand eNB according to claim 10, it is characterised in that the joint connection establishment module is further used for,
After receiving the joint connection that UE sends and setting up request message, it is first determined whether need to set up and small simultaneously
Cell eNB connection, if so, initiating connection to small cell eNB sets up request message, when receiving small cell
The connection that eNB is returned is set up after confirmation message, is performed described sent to UE and is combined the action that message is set up in connection；Otherwise, directly
Perform described sent to UE and combine the action that message is set up in connection.
12. grand eNB according to claim 10, it is characterised in that the joint connection establishment module is further used for, and connects
The NAS dedicated bearers generation request message that MME is sent is received, the message, which is carried, needs the NAS dedicated bearers for issuing UE activation request
Message, the message carries the QoS information of business simultaneously, is determined to need service distributing to small according to the QoS information of business
On cell, then S1 carryings are mapped on small cell radio bearer, then send connection again with order, the order to UE
UE radio configuration and NAS dedicated bearers activation request message is carried, the connection that reception UE is returned is matched somebody with somebody again completes order, to
MME returns to NAS dedicated bearers generation response message.
13. grand eNB according to claim 10, it is characterised in that the joint connection establishment module is further used for, and connects
The RRC signaling that UE is sent is received, the RRC signaling is passed through into small cell eNB；Receive the RRC that small cell eNB are sent
Signaling, UE is passed through by the RRC signaling.
14. a kind of UE, it is characterised in that be applied to：There is no interface in the user plane, small between small cell eNB and SGW
Cell eNB user plane anchor point is in grand eNB LTE system, the UE includes：
Signalling exchange module：When there is business datum to send or receive beep-page message, initiate joint connection to grand eNB and set up
Request message, so as to：Grand eNB initiates connection to small cell eNB and sets up request message；Receive the joint company that grand eNB is returned
Connect and set up message, service request is sent to grand eNB, the service request is NAS signaling, so as to：Grand eNB is saturating by the service request
It is transmitted to MME；Connection that grand eNB sends is received again with order, the radio configuration and small of the grand eNB sides carried according to the order
The radio configuration of cell sides, completes this UE radio configuration, and down-going synchronous and Stochastic accessing, institute are realized with small cell eNB
State connection is again with order：Grand eNB receives the initial context that MME sends and sets up request message, and radio bearer is mapped to
Issue UE's after small cell；
Data interaction module：Business datum is sent by small cell eNB.
15. UE according to claim 14, it is characterised in that the data interaction module is further used for, when sending
During business datum, the business datum is sent to small cell eNB, so as to：Small cell eNB lead to the business datum
Cross grand eNB and be transmitted to SGW；Or, the business datum that small cell eNB are sent is received, the business datum is：SGW passes through grand
ENB is transmitted to small cell eNB's.
16. UE according to claim 14, it is characterised in that the Signalling exchange module is further used for, receives grand eNB
The connection sent is again with order, and the order carries UE radio configuration, NAS dedicated bearers activation request message, according to the order
This UE radio configuration is completed, sending NAS dedicated bearers to grand eNB activates confirmation message, under being realized with small cell eNB
Row synchronization and Stochastic accessing.
17. a kind of LTE system, it is characterised in that including：Grand eNB, small cell eNB, and, grand eNB is small cell
There is no interface in the user plane between eNB user plane anchor point, and small cell and SGW, wherein：
Grand eNB：Request message is set up in the joint connection that reception UE is sent, and sending joint connection to UE sets up message；When receiving
The NAS signaling that UE is sent：During service request, the NAS signaling is passed through into MME, the initial context that reception MME is sent is set up please
Message is sought, radio bearer is mapped to small cell, connection is sent again with order to UE, the order carries the nothing of grand eNB sides
Line configures the radio configuration with small cell sides, so as to：UE is according to the radio configuration of grand eNB sides and the nothing of small cell sides
Line is configured, and completes this UE radio configuration, and realize down-going synchronous with small cell eNB；When receiving small cell
During the business datum from UE that eNB is sent, the business datum is transmitted to SGW；When receiving the business datum that SGW is sent
When, the business datum is issued into UE by small cell eNB；
small cell eNB：When receiving the business datum that UE is sent, the business datum is issued into SGW by grand eNB；When
When receiving the business datum from SGW that grand eNB is sent, the business datum is transmitted to UE.
18. LTE system according to claim 17, it is characterised in that the grand eNB is further used for, when receiving UE
The joint connection sent is set up after request message, it is first determined whether needing to set up the company with small cell eNB simultaneously
Connect, if so, initiating connection to small cell eNB sets up request message, when the connection for receiving small cell eNB returns
Set up after confirmation message, perform described sent to UE and combine the action that message is set up in connection；Otherwise, directly perform and described sent out to UE
Joint connection is sent to set up the action of message.
19. LTE system according to claim 17, it is characterised in that the grand eNB is further used for, receives MME and sends
NAS dedicated bearers generation request message, the message carry need to issue UE NAS message：The activation request of NAS dedicated bearers disappears
Breath, the message carries the QoS information of business simultaneously, is determined to need service distributing to small according to the QoS information of business
On cell, then S1 carryings are mapped on small cell radio bearer, then send connection again with order, the order to UE
UE radio configuration and NAS dedicated bearers activation request message is carried, the connection that reception UE is returned is matched somebody with somebody again completes order, to
MME returns to NAS dedicated bearers generation response message.
20. LTE system according to claim 17, it is characterised in that the grand eNB is further used for, receives UE and sends
RRC signaling, the RRC signaling is passed through into small cell eNB；The RRC signaling that small cell eNB are sent is received, will
The RRC signaling passes through UE.
21. LTE system according to claim 17, it is characterised in that the small cell eNB are further used for, and connect
Receive the RRC signaling from UE that grand eNB is sent；When to send RRC signaling to UE, the RRC signaling is sent to by grand eNB
UE。
22. LTE system according to claim 17, it is characterised in that the small cell eNB are further used for, when
When request message is set up in the connection for receiving the carrying UE marks that grand eNB is sent, return to connection to grand eNB and set up confirmation message.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310086592.9A CN104066199B (en) | 2013-03-19 | 2013-03-19 | Pass through the method and grand evolution base station of small cell data transmission |
| PCT/CN2014/073689 WO2014146578A1 (en) | 2013-03-19 | 2014-03-19 | Method for transmitting data through small cell and macro evolved node b |
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| CN201310086592.9A CN104066199B (en) | 2013-03-19 | 2013-03-19 | Pass through the method and grand evolution base station of small cell data transmission |
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| CN101473683A (en) * | 2006-06-21 | 2009-07-01 | Lg电子株式会社 | Cumulative neighboring cell list |
| CN102318419A (en) * | 2009-02-13 | 2012-01-11 | Lg电子株式会社 | Optimized paging method at home (e)nodeb system |
| CN102883440A (en) * | 2011-07-15 | 2013-01-16 | 华为技术有限公司 | wireless broadband communication method, device and system |
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| CN102598848B (en) * | 2009-11-06 | 2015-08-12 | 住友电气工业株式会社 | Communication system, micro base station and communication means |
| CN102348244B (en) * | 2010-08-03 | 2014-11-05 | 华为技术有限公司 | Cellular communication system, method for inter-cell handover of terminal and macro base station |
| CN102869039B (en) * | 2012-08-29 | 2016-04-20 | 华为技术有限公司 | A kind of base-station scheduling method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101473683A (en) * | 2006-06-21 | 2009-07-01 | Lg电子株式会社 | Cumulative neighboring cell list |
| CN102318419A (en) * | 2009-02-13 | 2012-01-11 | Lg电子株式会社 | Optimized paging method at home (e)nodeb system |
| CN102883440A (en) * | 2011-07-15 | 2013-01-16 | 华为技术有限公司 | wireless broadband communication method, device and system |
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