CN103458398B - Method and equipment for transmitting data - Google Patents
Method and equipment for transmitting data Download PDFInfo
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- CN103458398B CN103458398B CN201210168451.7A CN201210168451A CN103458398B CN 103458398 B CN103458398 B CN 103458398B CN 201210168451 A CN201210168451 A CN 201210168451A CN 103458398 B CN103458398 B CN 103458398B
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Abstract
The invention discloses a method and equipment for transmitting data. The method includes that relay nodes RN acquire transmission layer care-of addresses distributed by a target donor evolved node B DeNB for the relay nodes RN; the relay nodes RN inform serving gateways S-GW corresponding to user equipment UE of the transmission layer care-of addresses, and the serving gateways S-GW transmit the data which are required to be transmitted to the relay nodes RN to the target donor evolved node B DeNB by the aid of the transmission layer care-of addresses. The method and the equipment in an embodiment of the invention have the advantages that the relay nodes RN inform the serving gateways S-GW corresponding to the user equipment UE of the transmission layer care-of addresses which are distributed to the relay nodes RN by the target donor evolved node B DeNB, so that the serving gateways S-GW corresponding to the user equipment UE can directly transmit the data to the target donor evolved node B DeNB, the data can be prevented from being transmitted through P-GW (data packet networks gateway) (RN)/S-GW (RN) in data transmission procedures, the UE data packet transmission delay can be shortened, transmission load on a network can be reduced, return link resources between the P-GW (RN)/S-GW (RN) and the target donor evolved node B DeNB can be saved, and the user experience can be improved.
Description
Technical field
The present invention relates to communication technical field, more particularly, to a kind of transmission method of data and equipment.
Background technology
As shown in figure 1, being EPS（Evolved Packet System, the grouping system of evolution）The schematic diagram carrying, and
EPS carries and sets up in UE（User Equipment, user equipment）And P-GW（Packet Data Networks Gateway,
Packet data gateway）Between, for transmitting user face data between UE and P-GW；The packet that UE sends is mapped to correspondence
EPS carries, and carries through EPS and transmits to P-GW, and enters external network with IP packet form, is routed to Correspondent Node；Correspondent Node
The packet sending reaches P-GW through external network, and packet is mapped to corresponding EPS and carries by P-GW, and sends out through EPS carrying
Give UE.
It should be noted that complete EPS carries includes S5/S8 carrying, S1 carrying and radio bearer, and S5/S8 carries
Carrying with S1 is one-to-one relationship, and S1 carries and radio bearer is one-to-one relationship；Wherein, S5/S8 carries and S1 carries
It is by GTP（GPRS Tunneling Protocol, GPRS Tunnel Protocol）Come to realize, a GTP tunnel is by tunnel in tunnel
The transport Layer address of two end nodes and the TEID of end node distribution（Tunnel Endpoint Identifier, endpoint of a tunnel mark
Know）To identify；Carried as a example corresponding GTP tunnel by S1, its up end points is by S-GW（Serving Gateway, service network
Close）User plane transport Layer address（IP address）To identify with the TEID of S-GW distribution；S1 carry GTP tunnel descending end points by
eNB（Base station）User plane transport Layer address（IP address）It is assigned to TEID to identify with eNB.
In order to solve the problems such as in high-speed mobile environment, signal covers poor, switching is frequent, a kind of relaying supporting movement（I.e.
Mobile RN（Relay Node, via node））Can be deployed on the vehicles of high-speed mobile, for strengthening in the vehicles
Signal quality, also can switch the switching times to reduce UE by group.
As shown in Fig. 2 moving a kind of network architecture schematic diagram after RN for deployment, RN passes through Donor Cell（Alms giver is little
Area, by DeNB（Donor evolved Node B, donor base station）The cell of management）Access network, is connected to the core net of UE
（S-GW（UE）And MME（UE）, S-GW（UE）Represent the service S-GW, MME of UE（UE）Represent the service MME of UE）, each RN can
To control one or more cell；And the cell that UE can be controlled by accessing RN obtains wirelessly access.In this framework
Under, the interface between UE and RN is referred to as Uu mouth, and the interface between RN and DeNB is referred to as Un mouth, RN and MME（UE）Between logic
Interface is S1-MME（Mobility Management Entity, Mobility Management Entity）Interface, RN and S-GW（UE）Between
Logic interfacing be S1-U interface.
It should be noted that mobile RN has the dual identity of UE and eNB, as special UE, this mobile RN passes through user
The service S-GW of veil articulare RN（I.e. S-GW（RN））The service P-GW of/RN（I.e. P-GW（RN））RN is established and network between
EPS carries（The node that it is carried through includes：RN, DeNB, S-GW（RN）, P-GW（RN）Deng）, this carrying is by chain of command node
The service MME of RN（I.e. MME（RN））It is managed；As eNB, this mobile RN provides air interface for UE（Uu mouth）Return with wireless
Journey link（Un mouth）, and assist the EPS setting up UE to carry（The node that it is carried through includes：UE, RN, S-GW（UE）, the clothes of UE
Business P-GW etc.）.
As shown in figure 3, being the bearing relation schematic diagram of RN and UE, the carrying of UE with RN is nested；For downlink data packet, UE
Packet be mapped to the corresponding EPS of UE carry after, the corresponding PGW of RN be mapped in RN corresponding EPS carryings transmit,
Revert to the corresponding EPS of UE in RN and carry data, eating dishes without rice or wine（Uu mouth）Transmission；For upstream data bag, the data of UE is mapped
After carrying to the corresponding EPS of UE, it is mapped to transmission in RN corresponding EPS carrying in RN, reverts to UE pair in the corresponding PGW of RN
The EPS answering carries data, carries out subsequent transmission.
It should be noted that S-GW and P-GW corresponding to RN and UE is in logic function, can be real in different physics
It is also possible to realize in same physical entity, be given in Fig. 3 is that above-mentioned two logic function is located at same thing for internal realization
The example of reason entity；Additionally, logically, the opposite end of the corresponding MME/S-GW of the UE in Fig. 2 connected S1 interface is RN, RN pair
The PGW answering is the IP gateway of RN, and the corresponding MME/S-GW of UE issues the IP bag of RN and can first be routed to the corresponding PGW of RN and pass
It is defeated by RN.
During realizing the present invention, inventor finds at least there is problems with prior art：
RN can select a nearer P-GW for RN in geographical position of DeNB according to selected by it on startup（RN）/S-GW
（RN）；With the movement of RN, because the switching of RN causes its service DeNB to leave the P-GW of initial selected（RN）/S-GW（RN）Can
Can be more and more remote；Now packet is in P-GW（RN）/S-GW（RN）Propagation delay time can be increasing and the service DeNB of RN between,
Consumer's Experience is led to reduce；And the transmission of distance big data quantity also can consume P-GW（RN）/S-GW（RN）And DeNB between
Backhaul link resource.
Content of the invention
The embodiment of the present invention provides a kind of transmission method of data and equipment, to reduce propagation delay time, and saves backhaul chain
Road resource.
In order to achieve the above object, the embodiment of the present invention provides a kind of transmission method of data, including：
Via node RN obtains the transport layer Care-of Address that target donor base station DeNB is described RN distribution；
Described transport layer Care-of Address is notified to user equipment (UE) corresponding gateway S-GW by described RN, by described S-
GW will need to be sent to the data is activation of described RN to described target DeNB using described transport layer Care-of Address.
The embodiment of the present invention provides a kind of transmission method of data, including：
User equipment (UE) corresponding gateway S-GW obtains the biography that target donor base station DeNB distributes for via node RN
Defeated layer Care-of Address；
Described S-GW will need to be sent to the data is activation of described RN to described target using described transport layer Care-of Address
DeNB.
The embodiment of the present invention provides a kind of transmission method of data, including：
Target donor base station DeNB distributes transport layer Care-of Address for via node RN；
Described transport layer Care-of Address is sent to described RN by described target DeNB, is delivered described transport layer by described RN
Address notifies to user equipment (UE) corresponding gateway S-GW；
Described target DeNB receives described S-GW and is sent to described RN using needing of sending of described transport layer Care-of Address
Data；
Described target DeNB sends the data to described RN.
The embodiment of the present invention provides a kind of transmission method of data, including：
Operation and Maintenance OAM entity sends for configuring Differentiated Services Code Point to user equipment (UE) corresponding gateway S-GW
First configuration information filling in mode of DSCP, fills in mode to needing to be sent to relaying by described S-GW using described DSCP
The data of node RN is modified, and by amended data is activation to target donor base station DeNB；And,
Described OAM entity sends the second configuration for configuring the mapping relations that DSCP and RN carries to described target DeNB
Information, determines the DSCP in described amended data by described target DeNB according to the mapping relations that described DSCP and RN carries
The corresponding RN of value carries, and sends described data to RN in the RN carrying of this determination.
The embodiment of the present invention provides a kind of via node RN, including：
Obtain module, for obtaining the transport layer Care-of Address that target donor base station DeNB distributes for RN；
Sending module, for described transport layer Care-of Address is notified to user equipment (UE) corresponding gateway S-GW,
To need to be sent to the data is activation of described RN to described target DeNB using described transport layer Care-of Address by described S-GW.
The embodiment of the present invention provides a kind of gateway S-GW, and described S-GW is the corresponding S-GW of user equipment (UE), including：
Obtain module, for obtaining the transport layer Care-of Address that target donor base station DeNB distributes for via node RN；
Sending module, for will needing to be sent to the data is activation of described RN to described using described transport layer Care-of Address
Target DeNB.
The embodiment of the present invention provides a kind of target donor base station DeNB, including：
Distribute module, for distributing transport layer Care-of Address for via node RN；
First sending module, for described transport layer Care-of Address is sent to described RN, by described RN by described transmission
Layer Care-of Address notifies to user equipment (UE) corresponding gateway S-GW；
Receiver module, is sent to described RN for receiving described S-GW using needing of sending of described transport layer Care-of Address
Data；
Second sending module, is used for sending the data to described RN.
The embodiment of the present invention provides a kind of Operation and Maintenance OAM entity, including：
First sending module, for sending for configuring differential service code to user equipment (UE) corresponding gateway S-GW
First configuration information filling in mode of point DSCP, fills in mode to needing to be sent to by described S-GW using described DSCP
The data of the node RN that continues is modified, and by amended data is activation to target donor base station DeNB；
Second sending module, for described target DeNB send for configure the mapping relations that DSCP and RN carry the
Two configuration informations, are determined in described amended data according to the mapping relations that described DSCP and RN carries by described target DeNB
The corresponding RN of DSCP value carry, and carry in the RN of this determination and send described data to RN.
Compared with prior art, the embodiment of the present invention at least has advantages below：In the embodiment of the present invention, RN passes through mesh
Mark DeNB is that the transport layer Care-of Address of itself distribution notifies to the corresponding S-GW of UE so that the corresponding S-GW of UE can be with target
DeNB directly carries out data transmission, thus can avoid data in data transmission procedure through P-GW（RN）/S-GW（RN）, fall
The low propagation delay time of UE packet, and reduce the transmission load of network, and save P-GW（RN）/S-GW（RN）With DeNB
Between backhaul link resource, and Consumer's Experience can be improved.
Brief description
In order to be illustrated more clearly that technical scheme, the accompanying drawing of required use in embodiment being described below
Be briefly described it should be apparent that, drawings in the following description are only some embodiments of the present invention, general for this area
For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram that in prior art, EPS carries；
Fig. 2 is a kind of network architecture schematic diagram after disposing mobile RN in prior art；
Fig. 3 is the bearing relation schematic diagram of RN and UE in prior art；
Fig. 4 is the switching flow schematic diagram of mobile RN in prior art；
Fig. 5 is the UE data transfer path schematic diagram after switching in prior art；
Fig. 6 is a kind of transmission method schematic flow sheet of data that the embodiment of the present invention one provides；
Fig. 7 is the schematic flow sheet that in the embodiment of the present invention one, RN obtains transport layer Care-of Address from switching command；
Fig. 8 is that in the embodiment of the present invention one, RN obtains transport layer Care-of Address from the response of transport layer assignment of care-of-addresses
Schematic flow sheet；
Fig. 9 is that in the embodiment of the present invention one, RN notifies transport layer Care-of Address to the schematic flow sheet of S-GW；
Figure 10 is a kind of structural representation of via node RN that the embodiment of the present invention two provides；
Figure 11 is a kind of structural representation of gateway S-GW that the embodiment of the present invention three provides；
Figure 12 is a kind of structural representation of target donor base station DeNB that the embodiment of the present invention four provides；
Figure 13 is a kind of structural representation of Operation and Maintenance OAM entity that the embodiment of the present invention five provides.
Specific embodiment
During realizing the present invention, inventor notices：In LTE-A（Long Term Evolution
Advanced, long-term evolution upgrading）In system, introduce RN to improve the network coverage, and RN can be deployed in train etc.
In the vehicles, to reduce in the vehicles switching times of UE and to improve the purpose such as radio signal quality in compartment,
It should be noted that the RN being deployed on the vehicles is referred to as mobile RN；In addition, when mobile RN moves with the vehicles, it needs
To switch between different Donor Cell/DeNB, as shown in figure 4, the switching flow of mobile RN comprises the steps：
Step 1, source DeNB measure configuration to RN, and the measurement configuration information that the follow-up basis of RN receives executes measurement.
Step 2, on the ascending resource that source DeNB distributes for RN, RN report measurement results, and this measurement result will be used for
Auxiliary source DeNB switches over judgement.
Step 3, source DeNB measure judgement；Wherein, if source DeNB determines to switch over, continue executing with follow-up
Step.
Step 4, source DeNB send to target DeNB and comprise switching preparation in handover request message, and this handover request message
Relevant information.
Step 5, target DeNB with reference to this handover request message, according to the QoS of carrying to be accepted（Quality of
Service, service quality）Information carries out acceptance judging；Wherein, if target DeNB allows to receive this RN, carry out bottom and join
Put, to prepare to switch.
Step 6, target DeNB return in handover request ack message, and this handover request ack message to source DeNB and comprise
One RRC（Radio Resource Control, wireless heterogeneous networks）Container（RRC container）, particular content is tactile
Send out the switching command that RN switches over.
Step 7, source DeNB are on the downlink resource of scheduling by the switching command receiving transparent transmission（Make no modifications）To RN；
After receiving switching command, RN stops at source DeNB and carries out data transmit-receive.
The serial-number-state information that current data is sent by step 8, source DeNB（Downlink data packet as unsuccessful transmission
Serial number, assignable first serial number of target DeNB etc.）It is sent to target DeNB.
It should be noted that transmission transmission state is to ensure that the serial number of the data that source and target DeNB is received and dispatched even
Continuous, it is to avoid packet loss or repeat to occur；After step 8, source DeNB can by itself from core net receive but be not yet successfully sent to
The downlink data packet of RN is sent to target DeNB, so that target DeNB continues to be transmitted to RN；Similar, source DeNB can be by certainly
The serial number discontinuous RN upstream data bag that body receives from eating dishes without rice or wine（Air interface transmission mistake may lead to the bag that sends after RN early than
The DeNB that is coated first sending is properly received, and causes DeNB packet receiving sequence number discontinuous）It is sent to target DeNB, so that target DeNB exists
After receiving the packet lacking of RN repeating transmission, continuous for sequence number packet is sent to core net.
Step 9, RN send lead code to target DeNB, to set up the uplink synchronous with target DeNB.
Step 10, target DeNB return response message, carry the ascending resource for RN distribution（For subsequent transmission）And RN
Timing Advance（For adjusting the up delivery time of RN, set up uplink synchronous）.
Step 11, RN return handoff completion message to target DeNB；Hereafter, data can be carried out between RN and target DeNB
Transmitting-receiving.
Step 12, target DeNB initiate path integration request to MME, and carrying target DeNB is that each RN EPS carrying refers to respectively
Fixed user plane transport Layer address（IP address）With descending GTP tunnel mark（TEID）.
Step 13, MME request S-GW bearing modification request, carry the use that target DeNB is that each RN EPS carrying respectively specifies that
Family face transport Layer address（IP address）With descending GTP tunnel mark（TEID）.
Step 14, S-GW carry out path integration.
Step 15, S-GW return bearing modification response to MME, carry each RN of S-GW corresponding EPS carrying and respectively specify that
User plane transport Layer address（IP address）With up GTP tunnel mark（TEID）.
, to target DeNB return path handoff response, carrying S-GW is that each RN corresponding EPS carrying refers to respectively for step 16, MME
Fixed user plane transport Layer address（IP address）With up GTP tunnel mark（TEID）.
So far, path switching completes；And after this, it is sent to the downlink data packet of RN, S-GW carries according to belonging to it
Send it to the user plane transport Layer address that corresponding target DeNB is specified（IP address）, and descending GTP tunnel mark is set
（TEID）；The upstream data bag sending for RN, target DeNB can carry according to belonging to it and send it to corresponding S-GW and refer to
Fixed user plane transport Layer address（IP address）, and up GTP tunnel mark is set（TEID）.
Step 17, target DeNB send terminal contexts releasing request to source DeNB.
Step 18, source DeNB are released to switch the related resource that RN is distributed.
Based on the switching flow of above-mentioned mobile RN, as shown in figure 5, being the UE data transfer path schematic diagram after switching, right
Can be seen that than Fig. 2 and Fig. 5, change before and after RN switching is：RN data from via source DeNB transmission be changed to via target
DeNB transmits, and it is pointed out that before and after RN switching, the Correspondent Node of the relevant network node of UE does not all change,
The core net node of UE links the corresponding PGW of RN yet by wired mouth, and UE links RN yet by eating dishes without rice or wine, and therefore RN is in Donor
Switching between Cell/DeNB is invisible/non to the EPS network of whole UE, need not execute UE correlation handoff procedure.
RN can service the geographical position of DeNB according to it on startup and select a P-GW close to service DeNB for RN
（RN）/S-GW（RN）；With the movement of RN, because the switching of RN causes its service DeNB to leave the P-GW of initial selected（RN）/
S-GW（RN）More and more remote；Lead to UE user face data route elongated, the increase of business end-to-end time delay, Consumer's Experience reduces；Pin
To the problems referred to above, the embodiment of the present invention provides a kind of transmission method of data and equipment, and RN is by being from status by target DeNB
The transport layer Care-of Address joined notifies to the corresponding S-GW of UE so that the corresponding S-GW of UE can directly enter line number with target DeNB
According to transmission, thus can avoid routing data to P-GW in data transmission procedure（RN）/S-GW（RN）, reduce UE data
The propagation delay time of bag, and reduce the transmission load of network, and save P-GW（RN）/S-GW（RN）Backhaul and DeNB between
Link circuit resource, and Consumer's Experience can be improved.
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the present invention is clearly and completely described, shows
So, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of not making creative work, all
Belong to the scope of protection of the invention.
Embodiment one
The embodiment of the present invention one provides a kind of transmission method of data, under the scene using mobile RN, to carry out user
The routing optimality of face data；As shown in fig. 6, the method comprises the following steps：
Step 601, RN（Mobile RN）Obtain the transport layer Care-of Address that target DeNB is itself distribution.
, before being linked into target DeNB, RN obtains transport layer Care-of Address from switching command for mode one, RN；As Fig. 7
Shown, it is the schematic diagram that RN obtains transport layer Care-of Address from switching command, this process comprises the following steps：
Step 701, source DeNB sends handover request to target DeNB, carries RN instruction in this handover request, and this RN refers to
Show for indicating that switching node is RN；Additionally, RN Context can also be carried in this handover request（Context）：Energy as RN
Force information, configuration information and carrying information etc..
Step 702, target DeNB is RN determining switching node（Determined by the RN instruction carrying in handover request）Afterwards, it is
This RN distributes transport layer Care-of Address.
Step 703, target DeNB sends switching request response to source DeNB, and carrying in this switching request response needs transparent transmission
To the switching command of RN, and in this switching command, carry transport layer Care-of Address；Additionally, RN can also be carried in this switching command
In parameter configuration adopting needed for target DeNB etc..
In a kind of preferred implementation of the embodiment of the present invention, target DeNB is receiving the handover request from source DeNB
Afterwards, this target DeNB can also be the available TEID span of RN distribution, and can also carry target in above-mentioned switching command
This available TEID span that DeNB distributes for RN, and the available TEID span that each RN is assigned to is different.
Step 704, source DeNB sends in switching command, and this switching command to RN and carries the biography that target DeNB is distributed for RN
Defeated layer Care-of Address；Preferably, the available TEID span that target DeNB is distributed for RN can also be carried in this switching command.
For above-mentioned handling process, RN in order to obtain transport layer Care-of Address, for the process of RN side, then：RN is accessing
To before target DeNB, the switching command that RN passes through to receive from source DeNB obtains transport layer Care-of Address；It should be noted that
Carry transport layer Care-of Address in this switching command, and this transport layer Care-of Address passes through switching request response for target DeNB and leads to
Know to source DeNB's.
Preferably, the available TEID span that target DeNB is distributed for RN can also be carried in this switching command, and often
The available TEID span that individual RN is assigned to is different.
For above-mentioned handling process, RN in order to obtain transport layer Care-of Address, for the process of target DeNB side, then：Mesh
Mark DeNB needs to distribute transport layer Care-of Address for RN, and transport layer Care-of Address is sent to RN, and this process further includes：
Before being linked into target DeNB, target DeNB receives the handover request from source DeNB to RN, and in this handover request, instruction is cut
Changing node is RN；Further, after determining that switching node is RN, target DeNB needs to turn for RN distribution transport layer target DeNB
Hand over address, and to source DeNB send switching request response, and this switching request response in carry need to pass through RN switching life
Order, and in this switching command, carry transport layer Care-of Address.
Preferably, receiving after the handover request of source DeNB, target DeNB can also be available for RN distribution
The available TEID span that target DeNB is distributed also is carried for RN in TEID span, and above-mentioned switching command, and each
The available TEID span that RN is assigned to is different.
Mode two, RN are being linked into target DeNB（Now target DeNB becomes current service DeNB of RN）Afterwards, RN from
Transport layer Care-of Address is obtained in the response of transport layer assignment of care-of-addresses；As shown in figure 8, for RN from transport layer assignment of care-of-addresses
The schematic diagram of transport layer Care-of Address is obtained, this process comprises the following steps in response：
Step 801, RN sends the request of transport layer assignment of care-of-addresses to target DeNB, distributes transmission with request target DeNB
Layer Care-of Address.Preferably, the request of this transport layer assignment of care-of-addresses can be also used for the available TEID of request target DeNB distribution
Span.
Step 802, target DeNB, after receiving the request of transport layer assignment of care-of-addresses, turns for this RN distribution transport layer
Hand over address.Preferably, after receiving the request of transport layer assignment of care-of-addresses, this target DeNB can also be distributed for this RN can
Use TEID span.
Step 803, target DeNB sends the response of transport layer assignment of care-of-addresses to RN, and this transport layer assignment of care-of-addresses
The transport layer Care-of Address that target DeNB is distributed is carried for RN in response.Preferably, in the response of this transport layer assignment of care-of-addresses
Can also carry as the available TEID span of this RN distribution.
It should be noted that because RN has UE and eNB dual identity, therefore above-mentioned transport layer assignment of care-of-addresses request
RRC process can be passed through with the interaction of transport layer assignment of care-of-addresses response（ENB and UE interaction）Or X2-AP mistake
Journey（Interaction between eNB）Complete.
For above-mentioned handling process, RN in order to obtain transport layer Care-of Address, for the process of RN side, then：RN is accessing
To after target DeNB, RN sends the transport layer assignment of care-of-addresses for request distribution transport layer Care-of Address to target DeNB
Request, and the transport layer assignment of care-of-addresses response being returned by receiving target DeNB obtains transport layer Care-of Address.
Preferably, the request of this transport layer assignment of care-of-addresses is additionally operable to the available TEID span of request distribution, and this biography
Also carry, in defeated layer assignment of care-of-addresses response, the available TEID span that target DeNB is distributed for RN, and each RN is assigned to
Available TEID span different.
For above-mentioned handling process, RN in order to obtain transport layer Care-of Address, for the process of target DeNB side, then：Mesh
Mark DeNB needs to distribute transport layer Care-of Address for RN, and transport layer Care-of Address is sent to RN, and this process further includes：
After being linked into target DeNB, target DeNB receives the transport layer from RN for request distribution transport layer Care-of Address to RN
Assignment of care-of-addresses is asked, and distributes transport layer Care-of Address for RN, and sends the response of transport layer assignment of care-of-addresses to RN.
Preferably, the request of transport layer assignment of care-of-addresses is additionally operable to the available TEID span of request distribution, is receiving
After the transport layer assignment of care-of-addresses of RN is asked, target DeNB is the available TEID span of RN distribution, and transport layer
Also carry, in assignment of care-of-addresses response, the available TEID span that target DeNB is distributed for RN, and each RN be assigned to can
Different with TEID span.
It should be noted that being directed to aforesaid way one and mode two, target DeNB distributes transport layer Care-of Address for RN
Process, further includes：When there being multiple RN to be linked into same target DeNB, target DeNB is that the different RN in multiple RN divide
Join different transport layer Care-of Address；Or, when there being multiple RN to be linked into same target DeNB, target DeNB is multiple RN
In different RN distribution identical transport layer Care-of Address, and for the different available TEID spans of different RN distribution.
When distributing different transport layer Care-of Address：One DeNB may have multiple transport layer Care-of Address,
When there being multiple RN to be concurrently accessed a DeNB, then this DeNB can be the different transport layer Care-of Address of multiple RN distribution,
To distinguish the RN that different pieces of information bag is belonged to；Further, all target ip address are transport layer Care-of Address（DeNB appoints
One transport layer Care-of Address of meaning）Packet, according to IP routing mechanism, all can be routed to belonging to this transport layer Care-of Address
DeNB；And DeNB can be according to the assignment record of transport layer Care-of Address（I.e. transport layer Care-of Address and the mapping of RN are closed
System）, packet is dealt into corresponding RN.
When distributing identical transport layer Care-of Address：One DeNB may have multiple transport layer Care-of Address,
When there being multiple RN to be concurrently accessed a DeNB, this DeNB can also distribute identical transport layer Care-of Address for multiple RN,
And DeNB also needs to distribute reserved TEID scope for RN and different for the reserved TEID scope of each RN distribution, to distinguish
The RN that different pieces of information bag is belonged to；Further, all target ip address are the packet of transport layer Care-of Address, according to IP road
By mechanism, this DeNB belonging to transport layer Care-of Address all can be routed to；And this DeNB can be according to carrying in packet
Target TEID and the assignment record of TEID scope, determine the RN that packet is belonged to, and deliver a packet to corresponding RN.
Step 602, the transport layer Care-of Address that target DeNB is itself distribution is notified S-GW corresponding to UE by RN（I.e. UE
Service S-GW, be subsequently directly described as S-GW）.
In the embodiment of the present invention, this, after obtaining transport layer Care-of Address, can be transmitted by RN by path integration process
Layer Care-of Address notifies to S-GW, so that during RN switching DeNB, by path integration process, in S-GW and target
Immediate data transmission tunnel is set up between DeNB；As shown in figure 9, transport layer Care-of Address is notified to the signal of S-GW for RN
Figure, this process comprises the following steps：
Step 901, RN is to MME（The service MME of UE）Transmitting path handover request, instruction needs to carry out the UE of path switching
Corresponding EPS carrying information.
In this path handover request, carry the transport layer Care-of Address that target DeNB distributes for RN and correspond to for each UE
EPS carry distribution the descending GTP tunnel of S1-U TEID；If it should be noted that target DeNB be assigned with for RN available
TEID scope, then RN is that the descending TEID that UE corresponding EPS carrying distributes should belong to the available TEID that target DeNB is distributed for RN
In the range of.
Step 902, MME sends bearing modification request to S-GW, is modified with asking S-GW that corresponding UE is carried.Its
In, carry transport layer Care-of Address in the request of this bearing modification.
Step 903, S-GW executes bearing modification, changes downlink path.
Step 904, S-GW returns bearing modification response to MME, has completed to repair to indicate that the corresponding EPS of which UE carries
Change；And in the response of this bearing modification, carry the TEID of the up GTP tunnel of S1 of each UE corresponding EPS carrying and transport layer turns
Hand over address.
Step 905, MME responds to RN return path convert requests, in path integration request response, carries each UE and corresponds to
EPS carry the TEID of the up GTP tunnel of S1 and transport layer Care-of Address.
It should be noted that after completing the aforementioned steps, immediate data transmission will be set up between S-GW and target DeNB
Tunnel is so that interactive UE user face data between S-GW and target DeNB can be no longer necessary to be routed to the service P-GW section of RN
Point.
For above-mentioned handling process, in order to transport layer Care-of Address is sent to S-GW, for the process of RN side, then：RN
Send the path handover request carrying transport layer Care-of Address to the corresponding MME of UE, by bearing modification request, this is passed by MME
Defeated layer Care-of Address notifies to S-GW；For the process of S-GW side, then：S-GW passes through to receive the bearing modification request from MME
Obtain transport layer Care-of Address.
Step 603, S-GW will need to be sent to the data is activation of RN to target DeNB using transport layer Care-of Address（I.e. RN
DeNB after switching）.
In the embodiment of the present invention, OAM（Operation And Maintenance, Operation and Maintenance）Entity can be sent out to S-GW
Send for configuring DSCP（DiffServ Code Point, Differentiated Services Code Point）The configuration information filling in mode, S-GW receive
From the configuration information of OAM entity, fill in mode to needing the data being sent to RN to modify using DSCP, and will change
Data is activation afterwards is to target DeNB.
In the embodiment of the present invention, S-GW sends the data to target DeNB using transport layer Care-of Address and includes：S-GW profit
With the mode of filling in of DSCP, data is modified, and utilize transport layer Care-of Address by amended data is activation to target
DeNB.Further, S-GW is modified to data using the mode of filling in of DSCP, including：S-GW is using needing to be sent to RN
Data belonging to carry QoS demand fill in corresponding DSCP value for this data；It should be noted that DSCP is located at this data
ToS in IP packet header（Type of Service, COS）Domain.
Step 604, target DeNB receive from S-GW need to be sent to the data of RN, and send the data to correspond to
RN.
In the embodiment of the present invention, the process sending the data to RN specifically includes：When different RN are assigned different transmission
During layer Care-of Address, then target DeNB determines the transport layer carrying in data according to the mapping relations of transport layer Care-of Address and RN
RN corresponding to Care-of Address, and send the data to the RN of this determination；Or, turn when different RN are assigned identical transport layer
Hand over address, and when being assigned different available TEID spans, then target DeNB is according to available TEID span and RN
Mapping relations determine the RN corresponding to target TEID carrying in data, and send the data to the RN of this determination.
In the embodiment of the present invention, OAM entity can send to target DeNB and close for configuring the mapping that DSCP and RN carries
The configuration information of system, target DeNB receives the configuration information from OAM entity, and the mapping relations being carried according to DSCP and RN are true
The corresponding RN of DSCP value in fixed amended data carries, and sends data to RN in the RN carrying of this determination.
In the embodiment of the present invention, the process that target DeNB sends the data to RN includes：Target DeNB is derived from receiving
The data of S-GW（Need to be sent to the data of RN）Afterwards, held according to the DSCP domain value in this data and above-mentioned DSCP and RN
The mapping relations carrying, map the data to be packaged in corresponding RN carrying（Carry the mark that corresponding RN carries）, and root
Carry corresponding sending strategy according to RN（Corresponding with the QoS that RN carries）Send the data to corresponding RN.
It should be noted that after sending the data to corresponding RN, RN is according to data corresponding carrying ID（Use TEID
Mark）Determine that the UE EPS belonging to data receiving carries, and send the data on this EPS corresponding radio bearer of carrying
UE.Additionally, RN can ensure on a S1-U interface, it is unique that every S1-U GTP carries corresponding TEID；If RN is same
When have multiple S1-U interface（RN S-GW corresponding with multiple UE is connected）, a plurality of S1-U GTP on distinct interface carries corresponding
TEID may repeat, and in this case, RN needs according to the source address in the data being received（The IP address of S-GW）+
TEID uniquely to determine that the EPS belonging to the data receiving carries.
In the embodiment of the present invention, said process is that S-GW sends the process of data to RN, sends data for RN to S-GW
Process, this data transmission method can also include：
Target DeNB receives and needs to be sent to the upstream data of S-GW from RN, and after receiving upstream data, right
Upstream data carries out decapsulation and obtains IP packet；If the transport layer that the source address of IP packet is distributed for RN for target DeNB
Care-of Address（I.e. the source address of IP packet, before eating dishes without rice or wine to send data, is extended this as the biography that DeNB is its distribution by RN
Defeated layer Care-of Address）, then target DeNB directly IP packet is sent to S-GW；If the source address of IP packet is not target
The transport layer Care-of Address that DeNB distributes for RN, then target DeNB the source address modification of IP packet is divided for RN for target DeNB
The transport layer Care-of Address joined, and amended IP packet is sent to S-GW.
It should be noted that cutting target DeNB in RN, and trigger the destination node that downlink data sends by S-GW from source
Before DeNB goes to target DeNB, downlink data still can be sent to source DeNB by S-GW；The data being sent to source DeNB needs to reflect
It is mapped in the carrying of RN, and the data as RN, target DeNB, and process the cutting in RN of data forwarding are forwarded to by source DeNB
Complete during changing.
Embodiment two
Based on the inventive concept same with said method, additionally provide a kind of via node RN in the embodiment of the present invention, such as
Shown in Figure 10, this via node RN includes：
Obtain module 11, for obtaining the transport layer Care-of Address that target donor base station DeNB distributes for RN；Sending module
12, for described transport layer Care-of Address is notified, to user equipment (UE) corresponding gateway S-GW, to be utilized by described S-GW
Described transport layer Care-of Address will need to be sent to the data is activation of described RN to described target DeNB.
Described acquisition module 11, specifically for before being linked into target DeNB, by receiving the switching from source DeNB
Order obtains described transport layer Care-of Address；Wherein, carry described transport layer Care-of Address in described switching command, and described biography
Defeated layer Care-of Address is that described target DeNB is notified to described source DeNB by switching request response；Or, it is being linked into mesh
After mark DeNB, the transport layer assignment of care-of-addresses sending for request distribution transport layer Care-of Address to described target DeNB please
Ask, and the transport layer assignment of care-of-addresses response being returned by receiving described target DeNB obtains described transport layer Care-of Address；
Wherein, carry described transport layer Care-of Address in described transport layer assignment of care-of-addresses response.
In the embodiment of the present invention, in described switching command, also carry the available tunnel that described target DeNB is described RN distribution
Endpoint ID TEID span, and the available TEID span that each RN is assigned to is different；Or, described transport layer is delivered
Address assignment request is additionally operable to the available TEID span of request distribution, also carries in described transport layer assignment of care-of-addresses response
Described target DeNB is the available TEID span of described RN distribution, and the available TEID span that each RN is assigned to is not
With.
Described sending module 12, specifically for asking to the switching of described UE corresponding Mobility Management Entity MME transmitting path
Ask, and in the handover request of described path, carry described transport layer Care-of Address；Will be described by bearing modification request by described MME
Transport layer Care-of Address notifies to described S-GW.
Wherein, the modules of apparatus of the present invention can be integrated in one it is also possible to be deployed separately.Above-mentioned module can be closed
And for a module it is also possible to be further split into multiple submodule.
Embodiment three
Based on the inventive concept same with said method, in the embodiment of the present invention, additionally provide a kind of gateway S-GW,
Described S-GW is the corresponding S-GW of user equipment (UE), and as shown in figure 11, this gateway S-GW includes：
Obtain module 21, for obtaining the transport layer Care-of Address that target donor base station DeNB distributes for via node RN；
Sending module 22, for will needing to be sent to the data is activation of described RN to described target using described transport layer Care-of Address
DeNB.
Described acquisition module 21, specifically for by receiving holding from described UE corresponding Mobility Management Entity MME
Carry modification request and obtain described transport layer Care-of Address；Wherein, carry described transport layer in described bearing modification request and deliver ground
Location, and described transport layer Care-of Address is that described RN is sent to described MME by path handover request.
Described sending module 22, specifically for receiving the configuration information from Operation and Maintenance OAM entity, and described configuration letter
Cease and fill in mode for configure Differentiated Services Code Point DSCP；And, the mode of filling in using described DSCP is entered to described data
Row modification, and using described transport layer Care-of Address, amended data is activation is given described target DeNB.
Described sending module 22, is further used for the service quality using the carrying belonging to data needing to be sent to described RN
QoS demand fills in DSCP value for described data.
Wherein, the modules of apparatus of the present invention can be integrated in one it is also possible to be deployed separately.Above-mentioned module can be closed
And for a module it is also possible to be further split into multiple submodule.
Example IV
Based on the inventive concept same with said method, in the embodiment of the present invention, additionally provide a kind of target donor base station
DeNB, as shown in figure 12, this target donor base station DeNB includes：
Distribute module 31, for distributing transport layer Care-of Address for via node RN；First sending module 32, for by institute
State transport layer Care-of Address and be sent to described RN, notify to correspond to user equipment (UE) by described transport layer Care-of Address by described RN
Gateway S-GW；Receiver module 33, is sent out using the needs that described transport layer Care-of Address sends for receiving described S-GW
Give the data of described RN；Second sending module 34, is used for sending the data to described RN.
Described distribute module 31, before being linked into target DeNB in described RN, receives cutting from source DeNB
Change request, and in described handover request, instruction switching node is RN；And after determining that switching node is RN, be that described RN distribution passes
Defeated layer Care-of Address；Or, after described RN is linked into target DeNB, receive from described RN for request distribution transmission
The transport layer assignment of care-of-addresses request of layer Care-of Address, and distribute transport layer Care-of Address for described RN；
Described first sending module 32, specifically for sending switching request response to described source DeNB, and described switching please
Ask and in response, carry the switching command needing to pass through described RN, and in described switching command, carry described transport layer and deliver ground
Location；Or, send the response of transport layer assignment of care-of-addresses to described RN, and carry in the response of described transport layer assignment of care-of-addresses
Described transport layer Care-of Address.
Described distribute module 31, is additionally operable to receiving after the handover request of source DeNB, is that described RN distribution can
With Tunnel End Point Identifier TEID span, and also carry in described switching command described target DeNB be described RN distribution can
Use TEID span, and the available TEID span that each RN is assigned to is different；Or, described transport layer Care-of Address divides
Join request and be additionally operable to the available TEID span of request distribution, and receive the transport layer assignment of care-of-addresses from described RN
After request, it is the available TEID span of described RN distribution, and also carries institute in the response of described transport layer assignment of care-of-addresses
State the available TEID span that target DeNB is described RN distribution, and the available TEID span that each RN is assigned to is not
With.
Described distribute module 31, specifically for when there being multiple RN to be linked into described target DeNB, being in the plurality of RN
The different transport layer Care-of Address of different RN distribution；Or, when there being multiple RN to be linked into described target DeNB, it is described many
Different RN distribution identical transport layer Care-of Address in individual RN, and distribute different available TEID value models for described difference RN
Enclose.
Described second sending module 34, specifically for when different RN are assigned different transport layer Care-of Address, according to
Transport layer Care-of Address determines, with the mapping relations of RN, the RN corresponding to transport layer Care-of Address carrying in described data, and will
Described data is activation is to the RN of this determination；Or, when different RN are assigned identical transport layer Care-of Address, and it is assigned difference
Available TEID span when, determine, according to the mapping relations of available TEID span and RN, the mesh carrying in described data
RN corresponding to mark TEID, and send the data to the RN of this determination.
Described second sending module 34, specifically for receiving the configuration information from Operation and Maintenance OAM entity, and described joins
Confidence ceases for configuring the mapping relations that Differentiated Services Code Point DSCP and RN carries；Closed according to the mapping that described DSCP and RN carries
System determines that the corresponding RN of the DSCP value in described data carries；And, this determination RN carry on send described data to
Described RN.
This target donor base station DeNB also includes：3rd sending module 35, for receiving the needs from described RN
After being sent to the upstream data of described S-GW, decapsulation is carried out to described upstream data and obtains IP packet；If described IP number
Source address according to bag is described transport layer Care-of Address, then described IP packet is sent to described S-GW；If described IP number
Source address according to bag is not described transport layer Care-of Address, then turn the source address modification of described IP packet for described transport layer
Hand over address, and amended IP packet is sent to described S-GW.
Wherein, the modules of apparatus of the present invention can be integrated in one it is also possible to be deployed separately.Above-mentioned module can be closed
And for a module it is also possible to be further split into multiple submodule.
Embodiment five
Based on the inventive concept same with said method, additionally provide a kind of Operation and Maintenance OAM in the embodiment of the present invention real
Body, as shown in figure 13, this Operation and Maintenance OAM entity includes：
First sending module 41, for sending for configuring differential service to user equipment (UE) corresponding gateway S-GW
Needs are sent to using the mode of filling in of described DSCP by first configuration information filling in mode of code-point DSCP by described S-GW
The data of via node RN is modified, and by amended data is activation to target donor base station DeNB；Second sending module
42, for sending the second configuration information for configuring the mapping relations that DSCP and RN carries to described target DeNB, by described
Target DeNB determines corresponding to the DSCP value in described amended data according to the mapping relations that described DSCP and RN carries
RN carries, and sends described data to RN in the RN carrying of this determination.
Wherein, the modules of apparatus of the present invention can be integrated in one it is also possible to be deployed separately.Above-mentioned module can be closed
And for a module it is also possible to be further split into multiple submodule.
Through the above description of the embodiments, those skilled in the art can be understood that the present invention can be by
Software adds the mode of necessary general hardware platform to realize naturally it is also possible to pass through hardware, but the former is more in many cases
Good embodiment.Based on such understanding, technical scheme substantially contributes to prior art in other words
Partly can be embodied in the form of software product, this computer software product is stored in a storage medium, if including
Dry instruction is with so that a computer equipment（Can be personal computer, server, or network equipment etc.）Execute this
Method described in each embodiment bright.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or stream
Journey is not necessarily implemented necessary to the present invention.
It will be appreciated by those skilled in the art that module in device in embodiment can be carried out point according to embodiment description
It is distributed in the device of embodiment and be disposed other than in one or more devices of the present embodiment it is also possible to carry out respective change.On
The module stating embodiment can merge into a module it is also possible to be further split into multiple submodule.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
The several specific embodiments being only the present invention disclosed above, but, the present invention is not limited to this, any ability
What the technical staff in domain can think change all should fall into protection scope of the present invention.
Claims (25)
1. a kind of transmission method of data is it is characterised in that include：
Via node RN obtains the transport layer Care-of Address that target donor base station DeNB is described RN distribution；
Described transport layer Care-of Address is notified to user equipment (UE) corresponding gateway S-GW by described RN, by described S-GW profit
To need to be sent to the data is activation of described RN to described target DeNB with described transport layer Care-of Address；
Described RN obtains the transport layer Care-of Address that target DeNB is described RN distribution, including：
Before being linked into target DeNB, the switching command that described RN passes through to receive from source DeNB obtains described transmission to described RN
Layer Care-of Address；Wherein, carry described transport layer Care-of Address in described switching command, and described transport layer Care-of Address is institute
State target DeNB to notify to described source DeNB's by switching request response.
2. the method for claim 1 it is characterised in that
The available Tunnel End Point Identifier TEID value model that described target DeNB is described RN distribution is also carried in described switching command
Enclose, and the available TEID span that each RN is assigned to is different；Or,
Described transport layer assignment of care-of-addresses request is additionally operable to the available TEID span of request distribution, and described transport layer delivers ground
Also carry the available TEID span that described target DeNB is described RN distribution in the assignment response of location, and each RN is assigned to
Available TEID span is different.
3. the method for claim 1 is it is characterised in that described transport layer Care-of Address is notified to correspond to UE by described RN
S-GW, including：
Described RN is to described UE corresponding Mobility Management Entity MME transmitting path handover request, and described path handover request
In carry described transport layer Care-of Address；By described MME by bearing modification ask by described transport layer Care-of Address notify to
Described S-GW.
4. a kind of transmission method of data is it is characterised in that include：
User equipment (UE) corresponding gateway S-GW obtains the transport layer that target donor base station DeNB distributes for via node RN
Care-of Address；
Described S-GW will need to be sent to the data is activation of described RN to described target DeNB using described transport layer Care-of Address；
Described S-GW will need to be sent to the data is activation of described RN to described target DeNB using described transport layer Care-of Address,
Including：
Described S-GW receives the configuration information from Operation and Maintenance OAM entity, and described configuration information is used for configuring differential service
Code-point DSCP fills in mode；
Described S-GW is modified to described data using the mode of filling in of described DSCP, and utilizes described transport layer Care-of Address
Amended data is activation is given described target DeNB.
5. method as claimed in claim 4 is it is characterised in that the corresponding S-GW of described UE obtains what target DeNB was distributed for RN
Transport layer Care-of Address, including：
The bearing modification request that described S-GW passes through to receive from described UE corresponding Mobility Management Entity MME obtains described biography
Defeated layer Care-of Address；Wherein, carry described transport layer Care-of Address in described bearing modification request, and described transport layer delivers ground
Location is that described RN is sent to described MME by path handover request.
6. method as claimed in claim 4 is it is characterised in that described S-GW fills in mode to described number using described DSCP
According to modifying, including：
Described S-GW is filled in for described data using the service quality QoS demand needing to be sent to carry belonging to the data of described RN
DSCP value.
7. a kind of transmission method of data is it is characterised in that include：
Target donor base station DeNB distributes transport layer Care-of Address for via node RN；
Described transport layer Care-of Address is sent to described RN by described target DeNB, by described RN by described transport layer Care-of Address
Notify to user equipment (UE) corresponding gateway S-GW；
Described target DeNB receives described S-GW and is sent to the number of described RN using needing of sending of described transport layer Care-of Address
According to；
Described target DeNB sends the data to described RN；
Target DeNB is RN distribution transport layer Care-of Address, and described transport layer Care-of Address is sent to the process of described RN,
Further include：
Before being linked into target DeNB, described target DeNB receives the handover request from source DeNB to described RN, and described cuts
Changing instruction switching node in request is RN；After determining that switching node is RN, described target DeNB is that described RN distributes transport layer
Care-of Address, and send in switching request response, and described switching request response to described source DeNB and carry and need to pass through institute
State the switching command of RN, and in described switching command, carry described transport layer Care-of Address.
8. method as claimed in claim 7 is it is characterised in that methods described further includes：
Receiving after the handover request of source DeNB, described target DeNB is the available Tunnel End Point Identifier of described RN distribution
The available TEID value model that described target DeNB is described RN distribution is also carried in TEID span, and described switching command
Enclose, and the available TEID span that each RN is assigned to is different；Or,
Described transport layer assignment of care-of-addresses request is additionally operable to the available TEID span of request distribution, is receiving from described
After the transport layer assignment of care-of-addresses request of RN, described target DeNB is the available TEID span of described RN distribution, and institute
State and in the response of transport layer assignment of care-of-addresses, also carry the available TEID span that described target DeNB is described RN distribution, and
The available TEID span that each RN is assigned to is different.
9. method as claimed in claim 7 is it is characterised in that described target DeNB distributes transport layer Care-of Address, bag for RN
Include：
When there being multiple RN to be linked into described target DeNB, described target DeNB is that the different RN distribution in the plurality of RN are different
Transport layer Care-of Address；Or,
When there being multiple RN to be linked into described target DeNB, described target DeNB is that the different RN distribution in the plurality of RN are identical
Transport layer Care-of Address, and for the described difference RN different available TEID spans of distribution.
10. method as claimed in claim 8, it is characterised in that described target DeNB sends the data to described RN, is wrapped
Include：
When different RN are assigned different transport layer Care-of Address, described target DeNB is according to transport layer Care-of Address with RN's
Mapping relations determine the RN corresponding to transport layer Care-of Address carrying in described data, and send the data to this determination
RN；Or,
When different RN are assigned identical transport layer Care-of Address, and when being assigned different available TEID spans, described
Target DeNB determines corresponding to target TEID carrying in described data according to the mapping relations of available TEID span and RN
RN, and send the data to the RN of this determination.
11. methods as claimed in claim 7, it is characterised in that described target DeNB sends the data to described RN, are wrapped
Include：
Described target DeNB receives the configuration information from Operation and Maintenance OAM entity, and described configuration information is used for configuring difference
The mapping relations that service code-point DSCP and RN carries；
Described target DeNB determines corresponding to the DSCP value in described data according to the mapping relations that described DSCP and RN carries
RN carries；
Described target DeNB carries in the RN of this determination and sends described data to described RN.
12. methods as claimed in claim 7 are it is characterised in that methods described also includes：
Described target DeNB receive from described RN need to be sent to the upstream data of described S-GW after, to described up
Data carries out decapsulation and obtains IP packet；
If the source address of described IP packet is described transport layer Care-of Address, described target DeNB is directly by described IP number
It is sent to described S-GW according to bag；
If the source address of described IP packet is not described transport layer Care-of Address, described target DeNB is by described IP data
The source address modification of bag is described transport layer Care-of Address, and amended IP packet is sent to described S-GW.
A kind of 13. via node RN are it is characterised in that include：
Obtain module, for obtaining the transport layer Care-of Address that target donor base station DeNB distributes for RN；
Sending module, for notifying described transport layer Care-of Address to user equipment (UE) corresponding gateway S-GW, by institute
Stating S-GW will need to be sent to the data is activation of described RN to described target DeNB using described transport layer Care-of Address；
Described acquisition module, specifically for, before being linked into target DeNB, being obtained by the switching command receiving from source DeNB
Obtain described transport layer Care-of Address；Wherein, carry described transport layer Care-of Address in described switching command, and described transport layer turns
Address is handed over to be that described target DeNB is notified to described source DeNB by switching request response.
14. via node RN as claimed in claim 13 it is characterised in that
The available Tunnel End Point Identifier TEID value model that described target DeNB is described RN distribution is also carried in described switching command
Enclose, and the available TEID span that each RN is assigned to is different；Or,
Described transport layer assignment of care-of-addresses request is additionally operable to the available TEID span of request distribution, and described transport layer delivers ground
Also carry the available TEID span that described target DeNB is described RN distribution in the assignment response of location, and each RN is assigned to
Available TEID span is different.
15. via node RN as claimed in claim 13 it is characterised in that
Described sending module, specifically for described UE corresponding Mobility Management Entity MME transmitting path handover request, and institute
State and in the handover request of path, carry described transport layer Care-of Address；Asked described transport layer by bearing modification by described MME
Care-of Address notifies to described S-GW.
A kind of 16. gateway S-GW, described S-GW are the corresponding S-GW of user equipment (UE) it is characterised in that including：
Obtain module, for obtaining the transport layer Care-of Address that target donor base station DeNB distributes for via node RN；
Sending module, for will needing to be sent to the data is activation of described RN to described target using described transport layer Care-of Address
DeNB；
Described sending module, specifically for receiving the configuration information from Operation and Maintenance OAM entity, and described configuration information is used for
Configuration Differentiated Services Code Point DSCP fills in mode；And, the mode of filling in using described DSCP is modified to described data,
And using described transport layer Care-of Address, amended data is activation is given described target DeNB.
17. gateway S-GW as claimed in claim 16 it is characterised in that
Described acquisition module, specifically for by receiving the bearing modification from described UE corresponding Mobility Management Entity MME
Request obtains described transport layer Care-of Address；Wherein, carry described transport layer Care-of Address in described bearing modification request, and institute
Stating transport layer Care-of Address is that described RN is sent to described MME by path handover request.
18. gateway S-GW as claimed in claim 17 it is characterised in that
Described sending module, being further used for the service quality QoS using needing to be sent to carry belonging to the data of described RN needs
Ask and fill in DSCP value for described data.
A kind of 19. target donor base station DeNB are it is characterised in that include：
Distribute module, for distributing transport layer Care-of Address for via node RN；
Described transport layer, for described transport layer Care-of Address is sent to described RN, is turned by the first sending module by described RN
Address is handed over to notify to user equipment (UE) corresponding gateway S-GW；
Receiver module, is sent to the number of described RN for receiving described S-GW using needing of sending of described transport layer Care-of Address
According to；
Second sending module, is used for sending the data to described RN；
Described distribute module, before being linked into target DeNB in described RN, receives the handover request from source DeNB,
And instruction switching node is RN in described handover request；And after determining that switching node is RN, be that described RN distribution transport layer turns
Hand over address.
20. target donor base station DeNB as claimed in claim 19 it is characterised in that
Described first sending module, specifically for sending switching request response to described source DeNB, and described switching request response
In carry the switching command needing to pass through described RN, and in described switching command, carry described transport layer Care-of Address；Or,
Send the response of transport layer assignment of care-of-addresses to described RN, and carry described transmission in the response of described transport layer assignment of care-of-addresses
Layer Care-of Address.
21. target donor base station DeNB as claimed in claim 20 it is characterised in that
Described distribute module, is additionally operable to receiving after the handover request of source DeNB, is the available tunnel of described RN distribution
Endpoint ID TEID span, and in described switching command, also carry the available TEID that described target DeNB is described RN distribution
Span, and the available TEID span that each RN is assigned to is different；Or, described transport layer assignment of care-of-addresses request
It is additionally operable to the available TEID span of request distribution, and ask it receiving the transport layer assignment of care-of-addresses from described RN
Afterwards, it is the available TEID span of described RN distribution, and also carry described target in the response of described transport layer assignment of care-of-addresses
DeNB is the available TEID span of described RN distribution, and the available TEID span that each RN is assigned to is different.
22. target donor base station DeNB as claimed in claim 19 it is characterised in that
Described distribute module, specifically for when there being multiple RN to be linked into described target DeNB, being the difference in the plurality of RN
The different transport layer Care-of Address of RN distribution；Or, when there being multiple RN to be linked into described target DeNB, it is in the plurality of RN
Different RN distribution identical transport layer Care-of Address, and for the different available TEID spans of described difference RN distribution.
23. target donor base station DeNB as claimed in claim 22 it is characterised in that
Described second sending module, specifically for when different RN are assigned different transport layer Care-of Address, according to transport layer
The mapping relations of Care-of Address and RN determine the RN corresponding to transport layer Care-of Address carrying in described data, and by described number
According to the RN being sent to this determination；Or, when different RN are assigned identical transport layer Care-of Address, and it is assigned different can use
During TEID span, determine, according to the mapping relations of available TEID span and RN, target TEID carrying in described data
Corresponding RN, and send the data to the RN of this determination.
24. target donor base station DeNB as claimed in claim 19 it is characterised in that
Described second sending module, specifically for receiving the configuration information from Operation and Maintenance OAM entity, and described configuration information
For configuring the mapping relations that Differentiated Services Code Point DSCP and RN carries；Determined according to the mapping relations that described DSCP and RN carries
The corresponding RN of DSCP value in described data carries；And, carry in the RN of this determination and send described data to described RN.
25. target donor base station DeNB as claimed in claim 19 are it is characterised in that also include：
3rd sending module, for receive from described RN need to be sent to the upstream data of described S-GW after, to institute
State upstream data and carry out decapsulation and obtain IP packet；If the source address of described IP packet delivers ground for described transport layer
Location, then be sent to described S-GW by described IP packet；If the source address of described IP packet is not described transport layer delivered
Address, then be described transport layer Care-of Address by the source address modification of described IP packet, and amended IP packet sent out
Give described S-GW.
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| EP2922344B1 (en) * | 2014-03-19 | 2021-04-21 | Alcatel Lucent | Switching of uplink user plane termination point of a serving gateway for a bearer in dual connectivity operation |
| CN105379199B (en) * | 2014-06-16 | 2019-07-09 | 华为技术有限公司 | Service message distribution method and device |
| US10631287B2 (en) | 2014-09-26 | 2020-04-21 | Samsung Electronics Co., Ltd. | Method and apparatus for supporting multi-radio access technology |
| KR102257882B1 (en) * | 2014-09-26 | 2021-05-28 | 삼성전자 주식회사 | Method and Apparatus for supporting multi radio access technology |
| CN106162765B (en) * | 2015-04-09 | 2021-01-26 | 中兴通讯股份有限公司 | Data transmission method and device |
| CN108617011B (en) * | 2016-12-20 | 2020-10-13 | 普天信息技术有限公司 | Data transmission method and system based on relay node of long term evolution system |
| CN110300407A (en) | 2018-03-21 | 2019-10-01 | 中兴通讯股份有限公司 | Data transmission channel address distribution method, correlating method, device and storage medium |
| CN110351887A (en) * | 2018-04-04 | 2019-10-18 | 电信科学技术研究院有限公司 | Load bearing management method, wireless backhaul node and the donor base station of wireless backhaul node |
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