CN103024816B - Data transmission method and system - Google Patents
Data transmission method and system Download PDFInfo
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- CN103024816B CN103024816B CN201110285248.3A CN201110285248A CN103024816B CN 103024816 B CN103024816 B CN 103024816B CN 201110285248 A CN201110285248 A CN 201110285248A CN 103024816 B CN103024816 B CN 103024816B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/04—Interfaces between hierarchically different network devices
- H04W92/12—Interfaces between hierarchically different network devices between access points and access point controllers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/16—Interfaces between hierarchically similar devices
- H04W92/20—Interfaces between hierarchically similar devices between access points
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/16—Interfaces between hierarchically similar devices
- H04W92/22—Interfaces between hierarchically similar devices between access point controllers
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Abstract
The invention discloses a kind of data transmission method and system, this method includes：3G RNC are shunted from IU interface data to it, and 3G data are sent to 3G NodeB, and 4G data are sent to 4G eNodeB；3G NodeB send the 3G of reception data to UE；4G eNodeB send the 4G of reception data to UE.It is can solve the problem that using the present invention in correlation technique in the case of NodeB is large numbers of, new physical connection is established between NodeB and eNodeB, it is necessary to the problem of expending substantial amounts of resource.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of data transmission method and system.
Background technology
In WCDMA (WCDMA, Wideband Code Division Multiple Access) network, lead to
Include wireless network with land radio access web (UTRAN, Universal Terrestrial Radio Access Network)
Network controller (RNC, Radio Network Controller) and base station (NodeB) two kinds of basic network elements, are commonly called as 3G network.
In Long Term Evolution (LTE, Long Time Evolution) network, evolved universal land radio access web E-UTRAN includes
A kind of basic network elements of evolved base station eNodeB (eNB), are commonly called as 4G networks.
With the development of WCDMA networks, high-speed downstream receives link packet access (HSDPA, High Speed
DownlinkPacket Access), high speed uplink transmission link packet access (HSUPA, High Speed Uplink
Packet Access), dual carrier high-speed slender body theory (DC-HSDPA, Dual Carrier-High speed
Downlink packet access), two-band dual carrier high-speed slender body theory (DB-DC-HSDPA, Dual band-
Dual carrier-high speed downlink packetaccess), dual carrier high speed uplink packet access (DC-
HSUPA, Dual Carrier-high speed uplink packet access), four carrier wave high-speed slender body theories
(4C-HSDPA, Four carrier-high speed downlink packet access), eight carrier wave high speed downlink packets
In (8C-HSDPA, Eight carrier-high speed downlink packet access) these 3G systems of access
Multi-carrier polymerizing technology is introduced into successively so that the up-downgoing data transmission rate of user equipment (UE, User Equipment)
Multiplication is continuously available to improve.For the multi-transceiver technology of above-mentioned different dimensions, by taking down direction as an example, an important spy substantially
Sign is：UE must be equipped with the related reception data processing chain (3G-Receiver Chain) of a plurality of 3G, can receiving area simultaneously
Reason comes from the same sector in same base station (sector), the 3G data blocks that several carrier wave up-downgoings are sent.Evolve to the present
It WCDMA system is otherwise known as：HSPA+ systems (High Speed PacketAccess+).
With the development of LTE network, the technology CA (carrier of similar WCDMA multi-carrier polymerizing concepts
Aggregation) also gradually produce, by taking down direction as an example, so far, maximum can be to 5 downlink bandwidths in LTE system
Converging operation is carried out for 20MHz carrier wave.One of them important essential characteristic is：UE must be equipped with connecing for a plurality of 4G correlations
Receive data processing chain (4G-Receiver Chain), can simultaneously reception processing come from the same sector in same base station
(sector) the 4G data blocks that, several carrier wave up-downgoings are sent.
In operator by long process of the HSPA+ networks of deployment towards LTE network evolution, when necessarily having very long one section
Between, two kinds of systems exist and cooperated simultaneously, and shared the data transfer from or towards core net side
Task.Such as：There are two carrier frequency points resource F1, F2 in certain operator, and F1 is distributed into HSPA+ network operations uses, and will
F2 distributes to LTE network operation use.For in its networking, only the terminal of 3G functions can only work on F1, only 4G work(
Can terminal can only be worked on F2, be provided simultaneously with 3G, the terminal of 4G functions, can only be on F1 or F2 at the same time
Work, it is impossible to while worked on F1 and F2.So in order to make full use of this kind of UE receiving ability and improve down peak magnitude
Speed, 7G technologies (3G+4G) are also known as across HSPA+LTE system carrier aggregation technology and are born.
The blank framework of 7G technologies is as shown in figure 1, wherein LTE base station eNB controls as terminal wireless resource at present
The main control anchor point and data flow-dividing control point of (RRC, Radio Resource Connection) connection.In Fig. 1, eNB profits
Data are received at MME/SGW with S1 interfaces, 4G data are sent to LTEUE, or LTE+ by LTE system
HSPAaggregation UE.In 3G side, RNC is connect using IU (Interface Unit, interface unit) interface from SGSN
Data are received, and NodeB is sent it to by IUB interfaces, are sent 3G data to LTE+HSPA by HSPDA by NodeB
Aggregation UE, or HSPA UE.Wherein, connected between NodeB and eNB by X2 and IUB alike interfaces
Connect.
By taking Fig. 1 as an example, Physical Downlink Control Channel (PDCCH, Physicals of the UE on eNB operating carriers
DownlinkControl Channel) inside traffic order (such as：Resource allocation, hybrid automatic repeat-request (HARQ,
Hybrid AutomaticRepeat Request) operation relevant information) control under, from Physical Downlink Shared Channel (PDSCH,
Physical DownlinkShared Channel) on receive a part of user data.Meanwhile UE is in NodeB operating carriers
On High-Speed Shared Control Channel (HS-SCCH, High Speed Shared Control Channel) traffic order control
Under, received from high speed descending sharing channel channel (HS-DSCH, High Speed-Downlink Shared Channel) another
A part of user data.Anchor point eNB is responsible for upper layer protocol data bag caused by eNB to be allocated, and according to certain mode, determines
Which fixed partial data bag is sent from LTE air interface, and which partial data bag is sent from HSPA+ air interface.It is assigned to
That a part of protocol data bag of NodeB by a new interface between eNB and NodeB, it is necessary to be transmitted, by NodeB according to certainly
The mode of own agreement feature and HSPA+ air interfaces is transmitted.
Carrier aggregation technology in 7G technologies and HSPA+ systems or LTE system does not clash.That is：UE
It is possible to do data receiver on M carrier wave of HSPA+ systems, can do data on N number of carrier wave of LTE system simultaneously again connects
Receive, work general principle is same as above, and can be extended to higher dimension.
7G polymerization techniques fully and can be flexibly utilized by 3G, and the different characteristic distributions of 4G system resources are interdepartmental in the past
System load balancing, switching, redirect (redirect) etc. and have on the basis of means, 3G, 4G can be realized to a deeper level
The collaborative work of system.3G, 4G system can both share different types of business, and (such as speech business is as far as possible through HSPA+ systems electricity
Road exchanges (CS, Circuit Switch) domain, and high-speed data service transmits through LTE system as far as possible), it can also undertake simultaneously identical
Business (such as：Data service is assigned to two systems simultaneous transmission).
But structure corresponding to 7G polymerization techniques has some drawbacks to need to solve, specifically, for NodeB and eNodeB it
Between physical connection, due to original Commercial deployment, NodeB quantity is general very big, and connection is established between each NodeB and eNodeB
It is required to expend resource.Therefore, in the case of NodeB is large numbers of, new physical connection is completely set up, it is necessary to expend big
The resource of amount, this is nearly impossible thing.
It is new in the case of NodeB is large numbers of, to be established in correlation technique between whole NodeB and eNodeB
Physical connection, it is necessary to which the problem of expending substantial amounts of resource, not yet proposes effective solution at present.
The content of the invention
It is new in the case of NodeB is large numbers of, to be established in correlation technique between whole NodeB and eNodeB
Physical connection, it is necessary to the problem of expending substantial amounts of resource, the invention provides a kind of data transmission method and system, with least
Solve the above problems.
According to an aspect of the invention, there is provided a kind of data transmission method, including：Third generation radio network controller
3G RNC receive data, and it is shunted, and 3G data are sent to third generation base station 3G NodeB, and 4G data are sent out
Deliver to forth generation evolved base station 4G eNodeB；The 3G NodeB send the 3G of reception data to user equipment
UE；The 4G eNodeB send the 4G of reception data to the UE.
Preferably, the 3GRNC receives data, including：The 3GRNC is from IU interface data.
Preferably, the 3GRNC is after IU interface data, before being shunted to it, including：The 3GRNC
To sequence number corresponding to the Data Identification from the IU interfaces.
Preferably, it is coupled between the 3G RNC and the 4G eNodeB by specified interface, wherein, described specify connects
The IU interfaces of mouth and the 3G RNC match, and match with the X2 interface of the 4G eNodeB.
Preferably, the protocol hierarchy relation of the specified interface includes successively：General packet wireless service tunnel protocol is used
Family face part GTPU, UDP UPD and Internet Protocol IP layers.
Preferably, the 3G RNC are from IU interface data, and it is shunted, including：The 3G RNC according to
First preset rules from the data of the IU interfaces to carrying out PDCP PDCP shuntings；It is or described
3GRNC is according to the second preset rules to carrying out wireless spread-spectrum technology RLC shuntings from the data of the IU interfaces.
Preferably, first preset rules include following one of any：The number of same transmission control protocol TCP connection
According to the data for splitting into 3G；The data of same TCP connections split into 4G data；Priority is less than pre-set priority
Data distribution be 3G data；By priority higher than the data that the data distribution of pre-set priority is 4G；If PDCP buffering areas
In 3G data buffer storage be more than predetermined threshold value, select the 3G of specified quantity data, be translated into 4G data；If institute
The data buffer storage for stating the 4G in PDCP buffering areas is more than the second predetermined threshold value, the 4G of specified quantity data is selected, by its turn
Turn to 3G data.
Preferably, second preset rules include following one of any：The uplink state coating of rlc layer splits into 3G's
Data；Forbid sending uplink state bag in setting time；Up general data is split into 3G data, by 3G eat dishes without rice or wine into
Row is sent；The transmittable flow threshold of eating dishes without rice or wine of itself is sent to the 3G RNC by the 4G eNodeB, true by the 3G RNC
Protect the descending flow for being diverted to the 4G eNodeB and be less than the transmittable flow threshold of eating dishes without rice or wine.
Preferably, the 3G NodeB send the 3G of reception data to UE, and the 4G eNodeB are by reception
The data of the 4G are sent to the UE, in addition to：The UE receives the data of the 3G and the data of the 4G, according to
The sequence number identified in each data is ranked up.
Preferably, methods described is applied in 3G and 4G carrier aggregation systems.
According to another aspect of the present invention, there is provided a kind of data transmission system, including third generation radio network controller
3GRNC, third generation base station 3G NodeB, forth generation evolved base station 4G eNodeB and user equipment (UE)：The 3G RNC,
Shunted for receiving data, and to it, 3G data are sent to the 3G NodeB, 4G data are sent to described
4G eNodeB；The 3G NodeB, for the 3G of reception data to be sent to UE；The 4G eNodeB, for inciting somebody to action
The 4G received data are sent to the UE.
Preferably, the 3GRNC is additionally operable to from IU interface data.
Preferably, the 3GRNC is additionally operable to sequence number corresponding to the Data Identification from the IU interfaces.
Preferably, the 3GRNC includes：First diverter module, for according to the first preset rules to from the IU interfaces
The data of reception carry out PDCP PDCP shuntings；Second diverter module, for according to the second preset rules to from
The data of the IU interfaces carry out wireless spread-spectrum technology RLC shuntings.
Preferably, the UE is used to receive the data of the 3G and the data of the 4G, according to the sequence identified in each data
Number it is ranked up.
In embodiments of the present invention, it is attached using 3G RNC and 4G eNodeB, the data distribution that 3G RNC are received
Afterwards, 3G data are sent to 3G NodeB respectively, 4G data is sent to 4G eNodeB.That is, in the embodiment of the present invention
In, the connection that is attached using 3G RNC and 4G eNodeB between the NodeB and eNodeB that instead of and mentioned in correlation technique,
Because the quantity of RNC in systems will be far smaller than NodeB quantity, therefore, in the case of NodeB is large numbers of,
Also ample resources will not be expended as correlation technique, so as to reach the purpose for saving resource.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
It according to the eNB of correlation technique is main control anchor architectures schematic diagram that Fig. 1, which is,；
Fig. 2 is the process chart of data transmission method according to embodiments of the present invention；
Fig. 3 is 3G according to embodiments of the present invention, the interface structure schematic diagram of 4G carrier aggregation scenes；
Fig. 4 is the structural representation of the implementation environment of embodiment one according to embodiments of the present invention；
Fig. 5 is the particular flow sheet of the data transmission method of embodiment one according to embodiments of the present invention；
Fig. 6 is the structural representation of the implementation environment of embodiment two according to embodiments of the present invention；
Fig. 7 is the particular flow sheet of the data transmission method of embodiment two according to embodiments of the present invention；
Fig. 8 is the structural representation of data transmission system according to embodiments of the present invention；
Fig. 9 is 3G RNC according to embodiments of the present invention structural representation.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
To be mentioned in correlation technique, structure corresponding to 7G polymerization techniques has some drawbacks to need to solve, specifically, for
Physical connection between NodeB and eNodeB, due to original Commercial deployment, NodeB quantity is general very big, each NodeB and
Connection is established between eNodeB to be required to expend resource.Therefore, in the case of NodeB is large numbers of, all to establish new
For physical connection, it is necessary to expend substantial amounts of resource, this is nearly impossible thing.
In order to solve the above technical problems, the embodiments of the invention provide a kind of data transmission method, its handling process such as Fig. 2
It is shown, including：
Step S202,3G RNC receive data, and it is shunted, and 3G data are sent to 3GNodeB, by 4G's
Data are sent to 4G eNodeB；
Step S204,3G NodeB send the 3G of reception data to UE；
Step S206,4G eNodeB send the 4G of reception data to UE.
In embodiments of the present invention, it is attached using 3G RNC and 4G eNodeB, the data distribution that 3G RNC are received
Afterwards, 3G data are sent to 3G NodeB respectively, 4G data is sent to 4G eNodeB.That is, in the embodiment of the present invention
In, the connection that is attached using 3G RNC and 4G eNodeB between the NodeB and eNodeB that instead of and mentioned in correlation technique,
Because the quantity of RNC in systems will be far smaller than NodeB quantity, therefore, in the case of NodeB is large numbers of,
Also ample resources will not be expended as correlation technique, so as to reach the purpose for saving resource.
In implementation process, step S204 and step S206 order are arranged side by side, and simultaneously sequencing is not present in both.
Wherein, the data that 3G RNC are received can generally be received from IU interfaces.
Flow as shown in Figure 2, step S202 is when implementing, between its be related to two specific operations, i.e. 3G RNC from
, can also be by 3G RNC to the Data Identification pair from IU interfaces before being shunted to it after IU interface data
The sequence number answered.During subsequent transmission, UE received data packets can be ranked up according to the sequence number on packet to it, be avoided
The problem of may leading to not smoothly parse during packet received out-of-order.
In embodiments of the present invention, coupled between 3G RNC and 4G eNodeB, 3G RNC can be by the 4G's of shunting
Data are sent to 4G eNodeB, then need to be coupled by newly-increased specified interface between 3G RNC and 4G eNodeB, also,
Specified interface needs the IU interfaces with 3GRNC to match, it is also desirable to matches with 4G eNodeB X2 interface.It is and original
NodeB interface is substantially stationary, it is difficult to there is the possibility of modification, can only adapt to the FP interface modes of IUB mouths, and eNodeB does not have class
As IUB mouths, also without and similar IUR mouths, if newly-increased, it is necessary to if newly-increased interface change it is very big.Further,
Although eNodeB has X2 interface, but eNodeB X2 interface and original IUR mouths are entirely different, do not support the pattern of macro-diversity,
Its interface level is similar to the IU mouths of 3G systems, all includes successively：GTPU layers (UserPlane part ofGPRS
Tunneling Protocol, GPRS (General Packet Radio Service GPRSs) tunnel protocol
User plane part), UDP layer (User Datagram Protocol, UDP) and IP (Intemet
Protocol, Internet Protocol) layer.Therefore itself and RNC are attached, preferably also by RNC IU mouths.
Therefore, the protocol hierarchy relation of specified interface provided in an embodiment of the present invention includes successively as shown in Table 1：GTPU
Layer, UPD layers and IP layers.
Table one
| GTPU |
| UDP |
| IP |
The protocol hierarchy relation of specified interface is similar to the IU mouths of 3G systems, then can between 3G RNC and 4G eNodeB
Preferably connection or coupling.
In actual applications, due to general 3G systems all standings, and 4G systems cover high speed hot zones, because for
For mobility user, it is used as anchor point with 3G and seems more suitable.Therefore, the purpose of the embodiment of the present invention is：There is provided one
Kind LTE and HSPA+ carrier aggregation scenes, using 3G as anchor point, the interface modes of 3G systems and 4G systems, this interface modes can
To be completed carrying out less modification on original structure basic schema as far as possible.Using data provided in an embodiment of the present invention
The interface structure of the 3G that transmission method is related to, 4G carrier aggregation scene is as shown in Figure 3.
In a preferred embodiment, 3G RNC are from IU interface data, and it is shunted, the mode of shunting
And rule has a variety of, for example, arbitrary proportion shunting can be carried out to data, it can be shunted by designated ratio, such as 2
: 1,3: Isosorbide-5-Nitrae: 1, etc., it can also be allocated according to the bearing capacity of 3G or 4G systems, it is preferred that can be by following distribution
Mode is shunted：
3G RNC are according to the first preset rules to carrying out PDCP (Packet Data from the data of IU interfaces
ConvergeProtocol, PDCP)；Or
3G RNC according to the second preset rules to from the data of IU interfaces carry out RLC (Radio Link Control,
Wireless spread-spectrum technology) shunting.
Wherein, the first preset rules and the second preset rules can have a variety of, now include several preferable rules, example
Such as, the first preset rules can include following one of any：
The data of same TCP (Transmission Control Protocol, transmission control protocol) connection shunt
For 3G data；
The data of same TCP connections split into 4G data；
By priority less than the data that the data distribution of pre-set priority is 3G；
By priority higher than the data that the data distribution of pre-set priority is 4G；
If the data buffer storage of the 3G in PDCP buffering areas is more than predetermined threshold value, the 3G of specified quantity data are selected, will
It is converted into 4G data；
If the data buffer storage of the 4G in PDCP buffering areas is more than the second predetermined threshold value, the 4G of specified quantity number is selected
According to being translated into 3G data.
The uplink state coating of rlc layer splits into 3G data；
Forbid sending uplink state bag in setting time；
Up general data is split into 3G data, eats dishes without rice or wine to be transmitted by 3G；
The transmittable flow threshold of eating dishes without rice or wine of itself is sent to 3G RNC by 4G eNodeB, ensures descending shunting by 3G RNC
Flow to 4G eNodeB is less than transmittable flow threshold of eating dishes without rice or wine, and rephrases the statement, i.e., true by 4G transmittable flow threshold of eating dishes without rice or wine
Surely the data of 4G parts are split into.
During implementation, the 3G of reception data are sent to UE, 4G eNodeB and send the 4G of reception data by 3G NodeB
To UE, in addition to：UE receives 3G data and 4G data, is ranked up according to the sequence number identified in each data.
In summary, the core of the embodiment of the present invention is under spectrum aggregating scene, propose need with it is a kind of newly
Interface configuration structure between network element, further, provide and how under this new structure to carry out efficient data transfer.
Clearer for data transmission method provided in an embodiment of the present invention is become apparent from illustrating, the embodiment of the present invention provides
Two kinds of implementations, one kind are that shunting transmission (embodiment one) is carried out after PDCP resume modules, and one kind is to handle it in RLC
After carry out shunting transmission (embodiment two).Specific protocol layer processing, the embodiment seen below.
Embodiment one
It is how to distribute the 4G and 3G data of transmission, embodiment one under this transmission, the problem of the maximum being related to
The method shunted using PDCP, the structural representation for the system being related to refer to Fig. 4, the RLC examples of two systems independence
It is transmitted and feeds back, to reach highest data service efficiency, in addition to solve the sequencing problem of upper layer data, by
PDCP stamps sequence number (SN), after UE two independent complete data of RLC instance processes, is arranged according to PDCP sequence number (SN)
Sequence.
In this example, for PDCP shunting mode, it is necessary to carry out following specially treated：
First, the PDCP modules in 3G RNC stamp sequence number to the data of reception, are delivered to for the RLC module of UE sides two
After PDCP modules, PDCP layers are ranked up according to sequence number；
Secondly, the PDCP modules in 3GRNC can be shunted according to certain rule between 4G and 3G, such as same
The data of individual TCP connections all shunt 4G or 3G, and high-priority data is put into 4G transmissions, and lower-priority data is put into 3G transmissions；
In addition, the PDCP modules in 4G eNodeB, the data of 4G and 3G PDCP buffering areas can also be inquired about, if
The data buffer storage of 3G buffering area is more, then can be transmitted by 4G, vice versa.
In this example implement data transmission method specific steps as shown in figure 5, including：
Step S502,3GRNC receives the data of IU interfaces；
Step S504, data are carried out solution frame by 3G RNC GTPU modules, pass to 3G RNC PDCP modules；
Step S506, data are stamped sequence number by 3G RNC PDCP modules, and are shunted, and 3G data are sent to
3G RNC RLC module, the framing for another GTPU module that 4G data pass through 3G RNC is sent to 4G eNodeB；
Step S508, HSFP (Hsdpa Frame Protocol, the high-speed chain that 3G RNC RLC module passes through 3G RNC
Road packet access Frame Protocol) module sends the data to NodeB；
Step S510, data are carried out solution frame by 4G eNodeB GTPU modules, and are sent to 4G eNodeB PDCP moulds
Data are transmitted to 4G eNodeB RLC module by block, 4G eNodeB PDCP modules；
Step S512,4G eNodeB RLC module by 4G eNodeB MAC (Medium Access Control,
Medium education) module, data are sent to UE；
Step S514, after 3GNodeB HSFP solution frames, data are sent to by UE by 3GNodeB MACEHS modules；
Step S516, after UE physical layer solves data, handled by 2 independent RLC modules, be aggregated into one
PDCP modules are ranked up.
Embodiment two
The method that embodiment two is shunted using RLC, the structural representation and embodiment one for the system being related to are similar,
Specifically refer to Fig. 6, for RLC shunting mode, it is necessary to carry out following specially treated：
First, the PDCP modules in 3G RNC stamp sequence number to the data of reception, after the out of order deliveries of RLC, UE sides
PDCP layers be ranked up according to sequence number；
Secondly as all RLC packets have all housed portion in 3G RNC RLC, therefore for rlc layer
Uplink state bag, it is required for all being fed back in 3G system, is easy to 3G systems to be retransmitted；
And in order to reduce the out of order a large amount of feedbacks brought of RLC, it is necessary to be limited in terms of parameter configuration, reduce RLC
The amount of feedback is, it is necessary to which collocating uplink state bag forbids timer, the quantity that reduction feedback is sent；
Because up data volume is typically little, it is therefore proposed that up general data all eats dishes without rice or wine to be sent out by 3G
Send, reduce the time delay of forwarding；
4G sides need for the data traffic that can be sent to be sent to 3G RNC RLC with the mode of the capability distribution frame newly defined
Module, it is used to determine how many data sent to 4G eNodeB RLC module from 3G RNC RLC module.
Embodiment one employs the device of two independent RLC examples, is shunted by PDCP, comparatively passed through
Network element module is relatively more, and embodiment two using RLC come the method shunted, flow is more simplified, but simultaneously for RLC
The complexity of module increased.Data are numbered the PDCP modules still sequence number in 3G RNC simultaneously, because 3G and 4G
RLC module in this state, out of order delivery is supported, when being delivered to the PDCP modules of UE sides, in this case it is still possible to send out
The out of order situation of raw data.
In this example implement data transmission method specific steps as shown in fig. 7, comprises：
Step S702,3GRNC receives the data of IU interfaces；
Step S704, data are carried out solution frame by 3G RNC GTPU modules, pass to 3G RNC PDCP modules；
Step S706, data are numbered 3G RNC PDCP modules, are sent to 3G RNC RLC module；
Step S708, data are numbered with sequence number by 3G RNC RLC module, and the RLC data for distributing to 3G are passed through into HSFP moulds
Block sends the data to 3G NodeB, after another GTPU framing that the RLC data for distributing to 4G are passed through into 3G RNC, passes through
IU/X2 interfaces are forwarded；
Step S710,4G eNodeB GTPU modules will carry out specially treated, and data are carried out into solution frame, due to now
4G eNodeB MAC module can be transmitted directly to through being RLC data, therefore after solution frame, is then sent to UE；
Step S712, after 3G NodeB HSFP module solution frames, data are sent to by 3G NodeB MACEHS modules
UE；
Step S714, after UE physical layer solves data, it is only necessary to single RLC module, restructuring is carried out disorderly according to sequence number
Sequence is delivered, and is aggregated into a PDCP module and is ranked up again.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of data transmission system, and its structural representation is such as
Shown in Fig. 8, including 3G RNC 801,3GNodeB 802,4G eNodeB 803 and UE 804：
3G RNC 801, shunted for receiving data, and to it, 3G data sent to 3G NodeB 802,
4G data are sent to 4G eNodeB 803；
3GNodeB 802, coupled with 3G RNC 801 and UE 804, for the 3G of reception data to be sent to UE
804；
4G eNodeB 803, coupled with 3G RNC 801 and UE 804, for the 4G of reception data to be sent to UE
804。
In one embodiment, it is preferred that, 3G RNC 801 can be also used for from IU interface data.
In one embodiment, it is preferred that, 3G RNC 801 can be also used for the Data Identification pair from IU interfaces
The sequence number answered.
In one embodiment, it is preferred that, as shown in figure 9,3G RNC 801 include：
First diverter module 901, for according to the first preset rules to carrying out grouped data from the data of IU interfaces
Convergence protocol PDCP is shunted；
Second diverter module 902, coupled with the first diverter module 901, for according to the second preset rules to from IU interfaces
The data of reception carry out wireless spread-spectrum technology RLC shuntings.
In one embodiment, it is preferred that, UE 804 can be used for receiving 3G data and 4G data, according to each data
The sequence number of upper mark is ranked up.
As can be seen from the above description, the present invention realizes following technique effect：
In embodiments of the present invention, it is attached using 3G RNC and 4G eNodeB, the data distribution that 3G RNC are received
Afterwards, 3G data are sent to 3G NodeB respectively, 4G data is sent to 4G eNodeB.That is, in the embodiment of the present invention
In, the connection that is attached using 3G RNC and 4G eNodeB between the NodeB and eNodeB that instead of and mentioned in correlation technique,
Because the quantity of RNC in systems will be far smaller than NodeB quantity, therefore, in the case of NodeB is large numbers of,
Also ample resources will not be expended as correlation technique, so as to reach the purpose for saving resource.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and formed
Network on, alternatively, they can be realized with the program code that computing device can perform, it is thus possible to they are stored
Performed in the storage device by computing device, and in some cases, can be with different from shown in order execution herein
The step of going out or describing, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or
Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (11)
- A kind of 1. data transmission method, it is characterised in that including：Third generation radio network controller 3G RNC receive data, and it is shunted, and 3G data are sent to the third generation Base station 3G NodeB, 4G data are sent to forth generation evolved base station 4G eNodeB, wherein, the 3G RNC with it is described It is coupled between 4G eNodeB by specified interface；Wherein, the 3G RNC are from IU interface data, and it is shunted, Including：The 3G RNC are according to the first preset rules to carrying out PDCP from the data of the IU interfaces PDCP is shunted；Or the 3G RNC according to the second preset rules to carrying out Radio Link from the data of the IU interfaces Control RLC shuntings；The 3G NodeB send the 3G of reception data to user equipment (UE)；The 4G eNodeB send the 4G of reception data to the UE.
- 2. according to the method for claim 1, it is characterised in that the 3G RNC are after IU interface data, to it Before being shunted, including：The 3G RNC are to sequence number corresponding to the Data Identification from the IU interfaces.
- 3. according to the method for claim 2, it is characterised in that the IU interface phases of the specified interface and the 3G RNC Match somebody with somebody, match with the X2 interface of the 4G eNodeB.
- 4. according to the method for claim 3, it is characterised in that the protocol hierarchy relation of the specified interface includes successively：General packet wireless service tunnel protocol user plane part GTPU, UDP UPD and Internet Protocol IP Layer.
- 5. according to the method for claim 1, it is characterised in that first preset rules include following one of any：The data of same transmission control protocol TCP connection split into 3G data；The data of same TCP connections split into 4G data；By priority less than the data that the data distribution of pre-set priority is 3G；By priority higher than the data that the data distribution of pre-set priority is 4G；If the data buffer storage of the 3G in PDCP buffering areas is more than predetermined threshold value, the 3G of specified quantity data are selected, by its turn Turn to 4G data；If the data buffer storage of the 4G in the PDCP buffering areas is more than the second predetermined threshold value, the 4G of specified quantity number is selected According to being translated into 3G data.
- 6. according to the method for claim 1, it is characterised in that second preset rules include following one of any：The uplink state coating of rlc layer splits into 3G data；Forbid sending uplink state bag in setting time；Up general data is split into 3G data, eats dishes without rice or wine to be transmitted by 3G；The transmittable flow threshold of eating dishes without rice or wine of itself is sent to the 3G RNC by the 4G eNodeB, is ensured by the 3G RNC The descending flow for being diverted to the 4G eNodeB is less than the transmittable flow threshold of eating dishes without rice or wine.
- 7. according to the method described in claim any one of 2-6, it is characterised in that the 3G NodeB are by the 3G's of reception Data are sent to UE, and the 4G eNodeB send the 4G of reception data to the UE, in addition to：The UE The data of the 3G and the data of the 4G are received, are ranked up according to the sequence number identified in each data.
- 8. according to the method described in claim any one of 1-6, it is characterised in that methods described is applied to 3G and 4G carrier aggregations In system.
- 9. a kind of data transmission system, it is characterised in that including third generation radio network controller 3G RNC, third generation base station 3G NodeB, forth generation evolved base station 4G eNodeB and user equipment (UE)：The 3G RNC, are shunted for receiving data, and to it, and 3G data are sent to the 3G NodeB, by 4G Data send to the 4G eNodeB, wherein, be coupled between the 3G RNC and the 4G eNodeB by specified interface； The 3G RNC are additionally operable to include from IU interface data, the 3G RNC：First diverter module, for default according to first Rule from the data of the IU interfaces to carrying out PDCP PDCP shuntings；Second diverter module, for by According to the second preset rules to carrying out wireless spread-spectrum technology RLC shuntings from the data of the IU interfaces；The 3G NodeB, for the 3G of reception data to be sent to the UE；The 4G eNodeB, for the 4G of reception data to be sent to the UE.
- 10. system according to claim 9, it is characterised in that the 3G RNC are additionally operable to from the IU interfaces Data Identification corresponding to sequence number.
- 11. system according to claim 10, it is characterised in that the UE is used to receive the data of the 3G and the 4G Data, be ranked up according to the sequence number identified in each data.
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| CN201110285248.3A CN103024816B (en) | 2011-09-23 | 2011-09-23 | Data transmission method and system |
| PCT/CN2012/074779 WO2012155783A1 (en) | 2011-09-23 | 2012-04-26 | Data transmission method and system |
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| CN201110285248.3A CN103024816B (en) | 2011-09-23 | 2011-09-23 | Data transmission method and system |
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| CN104219034B (en) * | 2013-06-05 | 2017-08-18 | 华为技术有限公司 | Data transmission method and device |
| CN104581824A (en) * | 2013-10-17 | 2015-04-29 | 中兴通讯股份有限公司 | Method and system for data packet shunting transmission |
| KR20170039701A (en) | 2014-08-07 | 2017-04-11 | 닛본 덴끼 가부시끼가이샤 | Base station, wireless communication system, and communication method |
| CN104320812B (en) * | 2014-10-13 | 2018-12-28 | 中国联合网络通信集团有限公司 | A kind of method, apparatus and system of joint transmission |
| CN109429270A (en) * | 2017-06-23 | 2019-03-05 | 华为技术有限公司 | Communication means and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1960311A (en) * | 2005-11-01 | 2007-05-09 | 华为技术有限公司 | System and method of interconnection between network of universal mobile communication system and evolution network |
| CN101296479A (en) * | 2007-04-24 | 2008-10-29 | 华为技术有限公司 | Downstream data processing method and communication system |
| CN102111811A (en) * | 2009-12-23 | 2011-06-29 | 中兴通讯股份有限公司 | Method for realizing load sharing among communication networks and corresponding systems |
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| CN101277471A (en) * | 2007-03-30 | 2008-10-01 | 华为技术有限公司 | Method and system for transmitting signaling downwards |
| CN101374111B (en) * | 2008-10-22 | 2011-02-09 | 华为技术有限公司 | Method, equipment and system for transmitting PS business |
| CN102958102B (en) * | 2011-08-22 | 2017-09-29 | 中兴通讯股份有限公司 | A kind of RLC shunting transmission methods and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1960311A (en) * | 2005-11-01 | 2007-05-09 | 华为技术有限公司 | System and method of interconnection between network of universal mobile communication system and evolution network |
| CN101296479A (en) * | 2007-04-24 | 2008-10-29 | 华为技术有限公司 | Downstream data processing method and communication system |
| CN102111811A (en) * | 2009-12-23 | 2011-06-29 | 中兴通讯股份有限公司 | Method for realizing load sharing among communication networks and corresponding systems |
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