CN102958102B - A kind of RLC shunting transmission methods and system - Google Patents
A kind of RLC shunting transmission methods and system Download PDFInfo
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- CN102958102B CN102958102B CN201110241684.0A CN201110241684A CN102958102B CN 102958102 B CN102958102 B CN 102958102B CN 201110241684 A CN201110241684 A CN 201110241684A CN 102958102 B CN102958102 B CN 102958102B
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Abstract
Transmission method is shunted the invention discloses a kind of RLC, including：The PDCP modules of Bower Anchor point are scheduled to the data for needing to send, it would be desirable to which the data transfer of transmission is handled to 3G RLC modules and/or 4G RLC modules；3G RLC modules and 4G RLC modules carry out independent data processing by different RLC modules respectively, and the data after processing are sent respectively into NodeB and eNB；Data from 4G RLC modules and 3G RLC modules are sent to UE by eNB and NodeB respectively.The present invention also accordingly discloses a kind of RLC shuntings Transmission system.The present invention transmits downlink data using two independent RLC streams, so UE downlink data handling capacity can be improved, improves the downstream rate and efficiency of carrier aggregation scene.
Description
Technical field
The present invention relates to digital mobile communication technology, more particularly to a kind of radio link layer (RLC) shunting 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
Downlink Packet 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 packet access), 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) is continuously available multiplication and carried
It is high.For the multi-transceiver technology of above-mentioned different dimensions, by taking down direction as an example, an important essential characteristic is：UE must match somebody with somebody
The related reception data processing chains (3G-Receiver Chain) of a plurality of 3G are had, can be while reception processing be from same
The 3G data blocks that several carrier wave up-downgoings of the same sector in base station (sector) are sent.Evolve to the WCDMA system of today
Also known as HSPA+ systems (High Speed Packet Access+).
With the development of LTE network, the technology CA (carrier of similar WCDMA multi-carrier polymerizings concept
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 important essential characteristic is：UE must be equipped with the related receptions of a plurality of 4G
Data processing chain (4G-Receiver Chain), can be while reception processing comes from the same sector in same base station
(sector) the 4G data blocks that several carrier wave up-downgoings are sent.
In operator by the HSPA+ networks of deployment towards in the long process of 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 and used, then, in the carrier network, only the terminal of 3G functions can only work on F1,
Only the terminal of 4G functions can only work on F2, be provided simultaneously with the terminal of 3G and 4G functions, at the same time, can only be in F1
Or worked on F2, it is impossible to while being worked on F1 and F2.So for the receiving ability for making full use of this class UE and raising
Downlink peak rates, 7G technologies (3G+4G) are also known as across HSPA+LTE system carrier aggregation technology and are born.
At present, a kind of blank framework of 7G technologies is as shown in figure 1, wherein, LTE base station eNB is used as terminal RRC (Radio
Resource Connection) connection main control anchor point and data flow-dividing control point, by taking Fig. 1 as an example, UE eNB work
The traffic order inside PDCCH channels (Physical Downlink Control Channel) on carrier wave is (such as：Resource point
Match somebody with somebody, HARQ operation relevant information) control under, connect from PDSCH channels (Physical Downlink Shared Channel)
Receive a part of user data.Meanwhile, HS-SCCH High-Speed Shared Control Channel (Highs of the UE on NodeB operating carriers
Speed Shared Control channel) traffic order control under, from HS-DSCH channels (High Speed-
Downlink Shared channel) on receive another part user data.Anchor point eNB is responsible for the upper-layer protocol that eNB is produced
Packet is allocated, according to certain mode, determines which part is sent from LTE air interface, sky of which part from HSPA+
Middle interface is sent.NodeB that a part of protocol data bag is assigned to, it is necessary to by a new interface between eNB and NodeB
Transmission, is transmitted by NodeB according to the mode of oneself agreement feature and HSPA+ air interfaces.
At up direction (from UE to base station), UE will at least be sent out on the up frequency for working descending frequency pairing with eNB
PUCCH channels (Physical Uplink Control Channel) are sent, the inside is comprising such as：HARQ operation correlation (is properly received
Confirm ACK/NACK), dispatch request, receive channel quality and indicate etc., to feed back necessity that the transmission of LTE down high-speed datas is related
Information.And whether UE will send HS-DPCCH channels (High on the up frequency that NodeB works descending frequency pairing
Speed-Dedicated Physical Control channel), with feed back the transmission of HSPA+ down high-speed datas it is related must
Information is wanted, at present still under study for action.Generally, in order to reduce UE uplink transmission power, and uplink interference is reduced, it is intended to UE
Only eat dishes without rice or wine to carry out single system uplink feedback in LTE, rather than cross-system feeds back simultaneously.
Another blank framework of 7G technologies is as shown in Fig. 2 wherein, HSPA+ radio network controller (RNC) is as eventually
The main control anchor point and data flow-dividing control point of RRC (Radio Resource Connection) connections are held, by taking Fig. 2 as an example：UE
HS-SCCH High-Speed Shared Control Channels (High Speed Shared Control on NodeB operating carriers
Channel under traffic order control), from HS-DSCH channels (High Speed-Downlink Shared channel)
A part of user data is received, while PDCCH channels (the Physical Downlink Control on eNB operating carriers
Channel the traffic order inside) is (such as：Resource allocation, HARQ operation relevant information) control under, from PDSCH channels
Another part user data is received on (Physical Downlink Shared Channel).Anchor point RNC is responsible for upper strata to assist
The packet that view is produced is allocated, according to certain mode, determines which part is sent from LTE air interface, any part from
HSPA+ air interface is sent.ENB that a part of protocol data bag is assigned to, it is necessary to by one between RNC and eNB
New interface is transmitted, and is transmitted by eNB according to the mode of oneself agreement feature and LTE air interfaces.
At up direction (from UE to base station), UE will at least be sent out on the up frequency that NodeB works descending frequency pairing
HS-DPCCH channels (High Speed-Dedicated Physical Control channel) are sent, it is descending to feed back HSPA+
The related necessary information of high speed data transfer.And whether UE will send on the up frequency for working descending frequency pairing with eNB
PUCCH channels (Physical Uplink Control Channel), at present still under study for action, generally, in order to reduce the upper of UE
Row transmission power, and reduce uplink interference, it is intended to UE only eats dishes without rice or wine to carry out single system uplink feedback in HSPA+, rather than interdepartmental
System feeds back simultaneously.
In a word, the carrier aggregation technology in 7G technologies and HSPA+ or LTE system is not clashed.That is, UE
It is possible on HSPA+ M carrier wave do data receiver, and does data receiver on LTE N number of carrier wave simultaneously, work is basic
Principle ibid, can be extended to higher dimension.
7G polymerization techniques fully and can be flexibly utilized by the different characteristic distributions of 3G, 4G system resource, interdepartmental in the past
Unite on the basis of the existing means such as load balancing, switching, redirect, the association of 3G, 4G system can be realized to a deeper level
With work.3G, 4G system can both share different types of business, and (such as voice is tried one's best away HSPA+ system CS domains, high-speed data industry
Business is tried one's best away LTE system), identical business can also be undertaken simultaneously (such as：Data service is assigned to two systems and passed simultaneously
It is defeated).
But, when data are sent into UE from two systems respectively, 3G, 4G system due to the difference for the ability of eating dishes without rice or wine, and
The variation for environmental quality of eating dishes without rice or wine, will have influence on the sequence number of radio link layer (RLC) data that UE is received, if using tradition
RLC module, fill in sequence number, substantial amounts of RLC will necessarily be brought out of order and retransmitted, downlink data throughput actual influence UE,
So as to which the downstream rate and efficiency of carrier aggregation scene can be substantially reduced, moreover, 4G rlc layer and some areas of 3G rlc layers mechanism
Not (such as 4G RLC props up prudent segmentation), so, a public RLC module is understood more complicated in processing.
The content of the invention
In view of this, it is a primary object of the present invention to provide a kind of RLC shunting transmission methods and system, it is possible to increase UE
Downlink data handling capacity, improve carrier aggregation scene downstream rate and efficiency.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of radio link layer RLC shunts transmission method, including：
The PDCP PDCP modules of Bower Anchor point are scheduled to the data for needing to send, it would be desirable to transmission
Data transfer is handled to 3G RLC modules and/or 4G RLC modules；
3G RLC modules and 4G RLC modules carry out independent data processing by different RLC modules respectively, and will place
Data after reason are sent respectively to base station NodeB and evolved base station eNB；
Data from 4G RLC modules and 3G RLC modules are sent to user equipment (UE) by eNB and NodeB respectively.
The Bower Anchor point is eNB or radio network controller (RNC).
Data after processing are sent to NodeB and are by the 3G RLC modules：3G RLC modules pass through HSDPA FP modules
Data after processing are sent to NodeB；
Data after processing are sent to eNB and are by the 4G RLC modules：When Bower Anchor point is eNB, 4GRLC modules are by setting
Data after processing are sent to eNB by standby internal interface；When Bower Anchor point is RNC, 4GRLC modules are by X2 interface by after processing
Data are sent to eNB.
The PDCP modules of the Bower Anchor point to need send data be scheduled for：Sent out according to the data of 3G RLC modules
The quantity of the data from core net of ability, the data transmission capabilities of 4G RLC modules and caching is sent to be scheduled, specifically
For：
The data that core net is sent are received in PDCP buffering areas, start scheduling；
Inquiry 4G RLC transmittable ability of eating dishes without rice or wine, and the buffered data of data is not yet sent in 4G RLC buffering area
Amount, calculates the data amount check M that will be sent to 4G RLC modules this dispatching cycle；
M data are obtained from PDCP buffering areas, and are sent to 4G RLC modules；
Inquiry 3G RLC transmittable ability of eating dishes without rice or wine, and the buffered data of data is not yet sent in 3G RLC buffering area
Amount, calculates the data amount check N that will be sent to 3G RLC modules this dispatching cycle；
N number of data are obtained from PDCP buffering areas, and are sent to 3G RLC modules.
The PDCP modules of the Bower Anchor point to need send data be scheduled for：Sent out according to the data of 3G RLC modules
The quantity and priority of the data from core net of ability, the data transmission capabilities of 4G RLC modules and caching is sent to carry out
Scheduling, be specially：
The data that core net is sent are received in PDCP buffering areas, start scheduling；
Inquiry 4G transmittable ability of eating dishes without rice or wine, and not yet send the amount of buffered data of data in 4G RLC buffering area,
Calculating obtains the data volume that 4G RLC can also be sent；
Inquiry 3G transmittable ability of eating dishes without rice or wine, and not yet send the amount of buffered data of data in 3G RLC buffering area,
Calculating obtains the data volume that 3G RLC can also be sent；
A packet is obtained from PDCP cachings, is matched according to preset rules, decision is put into 4G RLC or 3G RLC
Send；
The packet is delivered to corresponding RLC examples, next bag is continued with, at all PDCP packets
Reason is finished, or two RLC all can not processing data, flow terminates.
The PDCP modules of the Bower Anchor point to need send data be scheduled for：According to the port numbers of packet, with
And the non-equilibrium state of 3G RLC modules and 4G RLC modules is scheduled, it is specially：
The port numbers of Transmission Control Protocol can not be detected, then are uniformly put into 4G RLC modules；It is Transmission Control Protocol that can detect
In the case of, if new port numbers occur, then corresponding packet is put into 4GRLC modules and 3G RLC modules in turn, such as
The port numbers that fruit has repetition occur, then the allocated corresponding 4G RLC modules or 3G before corresponding packet is put into
RLC module；Identical non-equilibrium state is all detected within default dispatching cycle, enters data flow correction.
A kind of RLC shunts Transmission system, including：Bower Anchor point, eNB and NodeB；Wherein, the Bower Anchor point is specifically included：
PDCP modules, 3G RLC modules and 4G RLC modules,
The PDCP modules, for being scheduled to the data for needing to send, it would be desirable to which the data transfer of transmission is to 3G
RLC module and/or 4G RLC modules are handled；
The 3G RLC modules, send for handling the data from PDCP modules, and by the data after processing
To NodeB；
The 4G RLC modules, send for handling the data from PDCP modules, and by the data after processing
To eNB；
The eNB, for the data from 4G RLC modules to be sent into UE；
The NodeB, for the data from 3G RLC modules to be sent into UE.
The Bower Anchor point is eNB or RNC.
The Bower Anchor point also includes HSDPA FP modules, and the data after processing are sent to NodeB by the 3G RLC modules
For：Data after processing are sent to NodeB by 3G RLC modules by HSDPA FP modules；
Data after processing are sent to eNB and are by the 4G RLC modules：When Bower Anchor point is eNB, 4GRLC modules are by setting
Data after processing are sent to eNB by standby internal interface；When Bower Anchor point is RNC, 4GRLC modules are by X2 interface by after processing
Data are sent to eNB.
The PDCP modules to need send data be scheduled for：
According to coming from for the data transmission capabilities of 3G RLC modules, the data transmission capabilities of 4G RLC modules and caching
The quantity of the data of core net is scheduled, and is specially：
The data that core net is sent are received in PDCP buffering areas, start scheduling；
Inquiry 4G RLC transmittable ability of eating dishes without rice or wine, and the buffered data of data is not yet sent in 4G RLC buffering area
Amount, calculates the data amount check M that will be sent to 4G RLC modules this dispatching cycle；
M data are obtained from PDCP buffering areas, and are sent to 4G RLC modules；
Inquiry 3G RLC transmittable ability of eating dishes without rice or wine, and the buffered data of data is not yet sent in 3G RLC buffering area
Amount, calculates the data amount check N that will be sent to 3G RLC modules this dispatching cycle；
N number of data are obtained from PDCP buffering areas, and are sent to 3G RLC modules.
The PDCP modules of the Bower Anchor point to need send data be scheduled for：Sent out according to the data of 3G RLC modules
The quantity and priority of the data from core net of ability, the data transmission capabilities of 4G RLC modules and caching is sent to carry out
Scheduling, be specially：
The data that core net is sent are received in PDCP buffering areas, start scheduling；
Inquiry 4G transmittable ability of eating dishes without rice or wine, and not yet send the amount of buffered data of data in 4G RLC buffering area,
Calculating obtains the data volume that 4G RLC can also be sent；
Inquiry 3G transmittable ability of eating dishes without rice or wine, and not yet send the amount of buffered data of data in 3G RLC buffering area,
Calculating obtains the data volume that 3G RLC can also be sent；
A packet is obtained from PDCP cachings, is matched according to preset rules, decision is put into 4G RLC or 3G RLC
Send；
The packet is delivered to corresponding RLC examples, next bag is continued with, at all PDCP packets
Reason is finished, or two RLC all can not processing data, flow terminates.
The PDCP modules of the Bower Anchor point to need send data be scheduled for：According to the port numbers of packet, with
And the non-equilibrium state of 3G RLC modules and 4G RLC modules is scheduled, it is specially：
The port numbers of Transmission Control Protocol can not be detected, then are uniformly put into 4G RLC modules；It is Transmission Control Protocol that can detect
In the case of, if new port numbers occur, then corresponding packet is put into 4GRLC modules and 3G RLC modules in turn, such as
The port numbers that fruit has repetition occur, then the allocated corresponding 4G RLC modules or 3G before corresponding packet is put into
RLC module；Identical non-equilibrium state is all detected within default dispatching cycle, enters data flow correction.
RLC shunting transmission methods of the present invention and system, the PDCP modules of Bower Anchor point are scheduled to the data for needing to send,
The data transfer for needing to send is handled to 3G RLC modules and/or 4G RLC modules；3G RLC modules and 4G RLC moulds
Block carries out independent data processing by different RLC module respectively, and by the data after processing be sent respectively to NodeB and
eNB；Data from 4GRLC modules and 3G RLC modules are sent to UE by eNB and NodeB respectively.The present invention is only using two
Vertical RLC streams transmit downlink data, so UE downlink data handling capacity can improve, improve the descending of carrier aggregation scene
Speed and efficiency.
Brief description of the drawings
Fig. 1 is a kind of blank configuration diagram of existing 7G technologies；
Fig. 2 is another blank configuration diagram of existing 7G technologies；
Fig. 3 is the schematic flow sheet that RLC of the present invention shunts transmission method；
Fig. 4 is the structural representation that RLC of the present invention shunts Transmission system；
Fig. 5 is main anchor point when being eNB, and RLC shunts the detailed construction schematic diagram of Transmission system；
Fig. 6 is main anchor point when being RNC, and RLC shunts the detailed construction schematic diagram of Transmission system；
Fig. 7 shunts the schematic flow sheet of transmission method for RLC described in the embodiment of the present invention 1；
Fig. 8 shunts the schematic flow sheet of transmission method for RLC described in the embodiment of the present invention 2；
Fig. 9 shunts the schematic flow sheet of transmission method for RLC described in the embodiment of the present invention 3.
Embodiment
The present invention basic thought be：The PDCP modules of Bower Anchor point are scheduled to the data for needing to send, it would be desirable to sent out
The data transfer sent is handled to 3G RLC modules and/or 4G RLC modules；3G RLC modules and 4G RLC modules are led to respectively
Cross different RLC modules and carry out independent data processing, and the data after processing are sent respectively to NodeB and eNB；ENB and
Data from 4G RLC modules and 3G RLC modules are sent to UE by NodeB respectively.
Because every bag data of rlc layer has sequence number, it is necessary to be delivered and fed back in sequence, so poly- in carrier wave
Close under scene, it is necessary to two independent RLC modules are transmitted, therefore, how by data distribution to the independent of the two
RLC data flows, just become RLC upper strata, that is, PDCP (PDCP) layer is the problem of to be considered.
And for receiving terminal, that is, terminal, it is also desirable to two independent RLC modules are set up, in up direction, it is necessary to right
Two independent RLC streams are fed back, and in down direction, for the data received, after completion RLC restructuring, then as early as possible
Deliver upwards.
The invention mainly relates in 3G WCDMA, two kinds of wireless communication systems of 4G LTE, network-side is with single control node
How form is realized polymerize the method used simultaneously to 3G carrier waves and 4G carrier waves.The present invention can cover eNB as Bower Anchor substantially
Point, or RNC, as Bower Anchor point, in order to describe clear needs, the embodiment of the present invention mainly using eNB as Bower Anchor, explained by point
State.
Fig. 3 is the schematic flow sheet that RLC of the present invention shunts transmission method, as shown in figure 3, this method includes：
Step 301：The PDCP modules of Bower Anchor point are scheduled to the data for needing to send, it would be desirable to the data transfer of transmission
Handled to 3G RLC modules and/or 4G RLC modules.
Here, Bower Anchor point is eNB or RNC, and it can be according to the data transmission capabilities of 3G RLC modules, 4G RLC modules
The quantity of the data from core net of data transmission capabilities and caching is scheduled；Can also be according to 3G RLC modules
The quantity of the data from core net of data transmission capabilities, the data transmission capabilities of 4G RLC modules and caching and preferential
Level is scheduled；It can also be entered according to the port numbers of packet and the non-equilibrium state of 3G RLC modules and 4G RLC modules
Row scheduling.
Step 302：3G RLC modules and 4G RLC modules are carried out at independent data by different RLC modules respectively
Reason, and the data after processing are sent respectively to NodeB and eNB.
It should be noted that 3G RLC modules have been handled after data, it is necessary to encapsulate data the HSDPA FP's for 3G
Frame format, is sent to 3G NodeB, when Bower Anchor point is eNB, 4G RLC modules have been handled after data, are connect by device interior
Data after processing are sent to eNB by mouth；When Bower Anchor point is RNC, 4G RLC modules have been handled after data, will by X2 interface
Data are sent to 4G eNB.Implementing for various modes will be described in detail in the embodiment after.
Step 303：Data from 4G RLC modules and 3G RLC modules are sent to UE by eNB and NodeB respectively.
The present invention also correspondingly proposes a kind of RLC shuntings Transmission system, and Fig. 4 is that RLC of the present invention shunts Transmission system
Structural representation, as shown in figure 4, the system includes Bower Anchor point, eNB and NodeB；Wherein, Bower Anchor point is specifically included：PDCP moulds
Block, 3G RLC modules and 4G RLC modules,
The PDCP modules, for being scheduled to the data for needing to send, it would be desirable to which the data transfer of transmission is to 3G
RLC module and/or 4G RLC modules are handled；
The 3G RLC modules, send for handling the data from PDCP modules, and by the data after processing
To NodeB；
The 4G RLC modules, send for handling the data from PDCP modules, and by the data after processing
To eNB；
The eNB, for the data from 4G RLC modules to be sent into UE；
The NodeB, for the data from 3G RLC modules to be sent into UE.
The Bower Anchor point also includes HSDPA FP modules, and the data after processing are sent to NodeB by the 3G RLC modules
For：Data after processing are sent to NodeB by 3G RLC modules by HSDPA FP modules；
Data after processing are sent to eNB and are by the 4G RLC modules：When Bower Anchor point is eNB, 4GRLC modules are by setting
Data after processing are sent to eNB by standby internal interface；When Bower Anchor point is RNC, 4GRLC modules are by X2 interface by after processing
Data are sent to eNB.
The PDCP modules to need send data be scheduled for：
According to coming from for the data transmission capabilities of 3G RLC modules, the data transmission capabilities of 4G RLC modules and caching
The quantity of the data of core net is scheduled, and is specially：
The data that core net is sent are received in PDCP buffering areas, start scheduling；
Inquiry 4G RLC transmittable ability of eating dishes without rice or wine, and the buffered data of data is not yet sent in 4G RLC buffering area
Amount, calculates the data amount check M that will be sent to 4G RLC modules this dispatching cycle；
M data are obtained from PDCP buffering areas, and are sent to 4G RLC modules；
Inquiry 3G RLC transmittable ability of eating dishes without rice or wine, and the buffered data of data is not yet sent in 3G RLC buffering area
Amount, calculates the data amount check N that will be sent to 3G RLC modules this dispatching cycle；
N number of data are obtained from PDCP buffering areas, and are sent to 3G RLC modules.
The PDCP modules of the Bower Anchor point to need send data be scheduled for：Sent out according to the data of 3G RLC modules
The quantity and priority of the data from core net of ability, the data transmission capabilities of 4G RLC modules and caching is sent to carry out
Scheduling, be specially：
The data that core net is sent are received in PDCP buffering areas, start scheduling；
Inquiry 4G transmittable ability of eating dishes without rice or wine, and not yet send the amount of buffered data of data in 4G RLC buffering area,
Calculating obtains the data volume that 4G RLC can also be sent；
Inquiry 3G transmittable ability of eating dishes without rice or wine, and not yet send the amount of buffered data of data in 3G RLC buffering area,
Calculating obtains the data volume that 3G RLC can also be sent；
A packet is obtained from PDCP cachings, is matched according to preset rules, decision is put into 4G RLC or 3G RLC
Send；
The packet is delivered to corresponding RLC examples, next bag is continued with, at all PDCP packets
Reason is finished, or two RLC all can not processing data, flow terminates.
The PDCP modules of the Bower Anchor point to need send data be scheduled for：According to the port numbers of packet, with
And the non-equilibrium state of 3G RLC modules and 4G RLC modules is scheduled, it is specially：
The port numbers of Transmission Control Protocol can not be detected, then are uniformly put into 4G RLC modules；It is Transmission Control Protocol that can detect
In the case of, if new port numbers occur, then corresponding packet is put into 4GRLC modules and 3G RLC modules in turn, such as
The port numbers that fruit has repetition occur, then the allocated corresponding 4G RLC modules or 3G before corresponding packet is put into
RLC module；Identical non-equilibrium state is all detected within default dispatching cycle, enters data flow correction.
When Bower Anchor point is eNB, the detailed construction schematic diagram of RLC shunting Transmission systems is as shown in figure 5, eNB is specifically included：
PDCP modules, 3G RLC modules, HSDPA FP modules, 4G RLC modules, MAC module, NodeB are specifically included：HSDPA FP moulds
Block and MAC-EHS modules, it can be seen that compared to existing structure, the structure mainly add 3G RLC moulds under 4G eNB
Block and HSDPA FP modules, eNB 4G RLC modules have been handled after data, call eNB 4G MAC (Medium Access Layer), will
Data are sent to UE, and eNB 3G RLC modules have been handled after data, it is necessary to encapsulate data the frame of the HSDPA FP for 3G
Form, is sent to 3G NodeB, and data then are passed through into 3G MAC-EHS (enhancing high speed media Access Layer) by 3G NodeB
It is sent to UE.
When Bower Anchor point is RNC, the detailed construction schematic diagram of RLC shunting Transmission systems is as shown in fig. 6, its handling process and figure
5 is similar, and no further details to be given herein.
Generally speaking, processing unit of the invention mainly includes the processing in following two stages：
Data are carried out classification scheduling by PDCP layers, are sent to different RLC modules and are handled, and according to believing in real time
Breath, enters Mobile state adjustment
4G and 3G RLC carry out independent data processing, and the MAC layer that the data after processing are sent into 4G and 3G respectively is entered
Row is sent.
Technical scheme is described in further detail with reference to specific embodiment.
Embodiment 1
The principle progress data dispatch that the present embodiment is first sent out by capability distribution according to arriving first.
Arrive first that first to send out by capability distribution be a kind of the most conventional shunting mode.Due to 4G the anti-of transmittable ability of eating dishes without rice or wine
Present speed and be higher than 3G (4G is 1ms, and 3G is 2ms), therefore after data are received for PDCP layers, first check 4G transmittable energy of eating dishes without rice or wine
The data volume not yet sent in power and 4G RLC modules, their difference is exactly the data volume that this scheduling can also be sent,
Data corresponding to this partial data amount are sent to 4G RLC, 3G eat dishes without rice or wine transmittable ability and 3G is then similarly inquired about
The data volume not yet sent in RLC module, their difference is exactly the data volume that this scheduling 3G can also be sent, by this part
Data are sent to the corresponding RLC modules of 3G and handled.
Fig. 7 shunts the schematic flow sheet of transmission method for RLC described in the embodiment of the present invention 1, as shown in fig. 7, the present invention is real
The concrete implementation step for applying example 1 is as follows：
Step 701：The data that core net is sent are received in PDCP buffering areas, start scheduling.
Step 702：Inquiry 4G RLC transmittable ability of eating dishes without rice or wine (the transmissible data volume of correspondence), and 4GRLC's are slow
Rush in area and not yet send the amount of buffered data of data, both subtract each other after converting, and draw the data volume that can be sent at present, i.e., originally
The data message number M that secondary dispatching cycle will send to 4G RLC modules.
Step 703：M data are obtained from PDCP buffering areas, and are sent to 4G RLC modules.
Step 704：Inquiry 3G RLC transmittable ability of eating dishes without rice or wine (the transmissible data volume of correspondence), and 3GRLC's are slow
Rush in area and not yet send the amount of buffered data of data, both subtract each other after converting, and draw the data volume that can be sent at present, i.e., originally
The data message number N that secondary dispatching cycle will send to 3G RLC modules.
Step 705：N number of data are obtained from PDCP buffering areas, and are sent to 3G RLC modules.
Step 706：4G RLC modules and 3G RLC modules carry out data processing, wherein 3G according to the mechanism of itself respectively
RLC needs the data handled being sent to 3G NodeB according to HSDPA FP frame format.
The advantage of this mode is that it is possible to transmission bandwidth of eating dishes without rice or wine to greatest extent using 4G and 3G, and 4G and 3G are mutual not
Interference, independent RLC module ensure that the order of data is sent.
Embodiment 2
The present embodiment carries out data distribution according to TCP connections or unified attribute.
Do not differentiate between the transmission of priority, the out of order of TCP layer data may be brought, therefore, in the present embodiment, PDCP according to
Certain rule, such as type of service priority carry out data distribution, to make up this problem.And general same TCP flow
Packet possesses some identical attributes, therefore we will can go according to this in allocation of packets to different RLC modules.
Because the handling capacity of 4G business is general higher than 3G business, therefore, generally, high-priority data or stream
The RLC that 4G can be placed on than larger type of service by measuring is issued, and lower-priority data or the relatively low business of flow-rate ratio
3G RLC can be placed on to be issued, a corresponding TCP connection data, typically belong to same type of service or preferential
Level, therefore the succession of TCP connection data can be ensured.
Fig. 8 shunts the schematic flow sheet of transmission method for RLC described in the embodiment of the present invention 2, as shown in figure 8, the present invention is real
The concrete implementation step for applying example 2 is as follows：
Step 801：The data that core net is sent are received in PDCP buffering areas, start scheduling.
Step 802：Inquiry 4G RLC transmittable ability of eating dishes without rice or wine (the transmissible data volume of correspondence), and 4GRLC's are slow
Rush in area and not yet send the amount of buffered data of data, and both are subtracted each other obtain the data volume MB that 4G RLC can also be sent.
Step 803：Inquiry 3G transmittable ability of eating dishes without rice or wine (the transmissible data volume of correspondence), and 3G RLC buffering area
In not yet send the amount of buffered data of data, and both subtracted each other obtain the data volume NB that 3G RLC can also be sent.
Step 804：Judge whether PDCP buffering areas also have untreatment data, if also untreatment data, from PDCP
Caching obtains a packet, goes to step 805；Otherwise, technology epicycle is dispatched.
Step 805：Judge whether the data meet 4G RLC processing standards, if it is, going to step 806；Otherwise, go to
Step 807.
Step 806：Whether 4G RLC processing datas are judged more than MB, if it is, terminating epicycle scheduling；Otherwise, step is gone to
Rapid 808.
Step 807：Whether 3G RLC processing datas are judged more than NB, if it is, terminating epicycle scheduling；Otherwise, step is gone to
Rapid 809.
Step 808：The data are put into 4G RLC modules to be handled.
Step 809：The data are put into 3G RLC modules to be handled.
It should be noted that priority judges can there is following several concrete modes：
According to IP message TOS fields, divided, it is necessary to which core net is supported, TOS fields are filled in differentiation；
According to the protocol type of carrying, such as ftp business data volume is typically big, can be placed on 4G and be transmitted, HTTP industry
Data volume of being engaged in can be placed on 3G and be transmitted than relatively low；
According to TCP or UDP port number be randomly assigned in proportion, such as port numbers mould 3 is for 0,1 in 4G
RLC transmissions are 2 in 3G RLC transmissions.
After making in this way, the out of order problem of TCP layer can be resolved, it is ensured that each TCP connection data
Succession, only 4G eat dishes without rice or wine or 3G eat dishes without rice or wine be transmitted.
Embodiment 3
The present embodiment is related to mixing dynamically distributes mode.
In order to both ensure that 4G and 3G bandwidth can be fully used, ensure that the data in same TCP flow can again
Issued in sequence, one can consider that it is more than comparison, if downloading, a line certainly that user, which sets up TCP connections,
Journey one TCP connection of correspondence, if the business such as online a, webpage can also correspond to many TCP connections, therefore, it can adopt
With the method for poll, for all PDCP business, if the port numbers of Transmission Control Protocol can not be detected, uniformly it is put into 4G's
RLC, if it is possible to which it is Transmission Control Protocol to detect, then is distributed in turn in sequence, by the data chartered steamer of same port numbers
Stream is sent to 4G RLC and 3G RLC modules, such as the TCP port number for finding first PDCP packet is 500, then is put into 4G
RLC, the TCP port number of next PDCP packets is 600, then is put into 3G RLC, followed by 700, is still put into 4G RLC,
Then come 500 again, be still put into 4G RLC, subsequently if new port numbers occur, be then put into two RLC entities in turn,
If identical TCP port number, then above the allocated corresponding RLC entities are put into.
There is such mechanism above, in most cases, ensure that the data volume of two streams is substantially uniform, still
It is also possible to occur the data that can send of some RLC module to be discontented with, and the feelings that another RLC module data can not have been sent
Condition, can be corrected to such case.
Such as, if 4G RLC modules are free complementary energy power to issue, and the data volume of 3G RLC modules is very big, sends endless,
Such state is designated as to " on the contrary imbalance 4 ", represents that 4G is more idle, then be designated as that " imbalance 3 ", expression 3G is more idle.
In order to ensure infrequently to be corrected, counter thresholding can be set, (Balance Num, BN can be 10) individual as continuous BN
Identical " imbalance 4 " or " uneven 3 " states, then into " continuous imbalance 4 " is " continuously not are all detected in dispatching cycle
Balance 3 " initiates correction, and the method for correction is as follows, by " exemplified by continuous imbalance 4 "：
Next PDCP packets, if the packet not having above, then still enter according to original criterion in turn
Row is delivered；
Next PDCP packets, if 3G RLC will be put into, are changed to be put into 4G RLC, and more new record, with
The PDCP data of the port numbers, are all changed to be put into 4G RLC afterwards；
Next PDCP packets, if 4G RLC will be put into, remain unchanged.
Fig. 9 shunts the schematic flow sheet of transmission method for RLC described in the embodiment of the present invention 3, as shown in figure 9, the present invention is real
The concrete implementation step for applying example 3 is as follows：
Step 901：The data that core net is sent are received in PDCP buffering areas, start scheduling.
Step 902：Inquiry 4G RLC transmittable ability of eating dishes without rice or wine (the transmissible data volume of correspondence), and 4GRLC's are slow
Rush in area and not yet send the amount of buffered data of data, subtract each other and obtain the data volume MC that 4G RLC can also be sent.
Step 903：Inquiry 3G transmittable ability of eating dishes without rice or wine (the transmissible data volume of correspondence), and 3G RLC buffering area
In not yet send the buffering capacities of data, subtract each other and obtain the data volume NC that 3G RLC can also be sent.
Step 904：Judge whether PDCP buffering areas also have untreatment data, if it is, going to step 905, otherwise, terminate
Epicycle is dispatched.
Step 905：A packet is obtained from PDCP cachings, judges whether that TCP port number can be detected, if it is, turning
To step 906；Otherwise, step 911 is gone to..
Step 906：Filtered according to TCP port number, newly-increased port numbers are put into 4G or 3G RLC in turn, old port numbers are put into
The RLC module that last time is put into, until transmittable data volume is distributed.
Step 907：Detect whether non-equilibrium state occur, if it is, going to step 908；Otherwise, return to step 904.
Step 908：Non-equilibrium state counter adds one.
Step 909：Judge whether to reach continuous non-equilibrium state thresholding, if it is, going to step 910；Otherwise, step is returned
Rapid 904.
Step 910：Carry out data flow correction.
Step 911：If TCP port numbers can not be detected, 4G RLC processing is directly placed into, flow terminates under continuation
One packet.
Dynamic adjusting method more than, can meet the data of same TCP connections within a period of time, by same
One RLC module is handled, it is to avoid out of order, it is also ensured that is changed, is carried in real time according to 4G, 3G transmitting capacity of eating dishes without rice or wine
Height is eated dishes without rice or wine the efficiency utilized.
As can be seen that under spectrum aggregating scene, the present invention transmits downlink data with two independent RLC streams, more enters
One step, provide the transmission data method for how distributing the two independent RLC data flows.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually it is combined.
Certainly, the present invention can also have other various embodiments, ripe in the case of without departing substantially from spirit of the invention and its essence
Various corresponding changes and deformation, but these corresponding changes and deformation can be made according to the present invention by knowing those skilled in the art
The protection domain of appended claims of the invention should all be belonged to.
One of ordinary skill in the art will appreciate that all or part of step in the above method can be instructed by program
Related hardware is completed, and described program can be stored in computer-readable recording medium, such as read-only storage, disk or CD
Deng.Alternatively, all or part of step of above-described embodiment can also use one or more integrated circuits to realize.Accordingly
Each module/unit in ground, above-described embodiment can be realized in the form of hardware, it would however also be possible to employ the shape of software function module
Formula is realized.The present invention is not restricted to the combination of the hardware and software of any particular form.
Claims (6)
1. a kind of radio link layer RLC shunts transmission method, it is characterised in that this method includes：
The PDCP PDCP modules of Bower Anchor point are scheduled to the data for needing to send, it would be desirable to the data of transmission
Pass to 3G RLC modules and/or 4G RLC modules are handled；
3G RLC modules and 4G RLC modules carry out independent data processing by different RLC modules respectively, and by after processing
Data be sent respectively to base station NodeB and evolved base station eNB；
Data from 4G RLC modules and 3G RLC modules are sent to user equipment (UE) by eNB and NodeB respectively；
The PDCP modules of the Bower Anchor point to need send data be scheduled for：According to the port numbers and 3G of packet
The non-equilibrium state of RLC module and 4G RLC modules is scheduled, and is specially：
The port numbers of Transmission Control Protocol can not be detected, then are uniformly put into 4G RLC modules；Can detect be Transmission Control Protocol situation
Under, if new port numbers occur, then corresponding packet is put into 4G RLC modules and 3G RLC modules in turn, if
The port numbers repeated occur, then the allocated corresponding 4G RLC modules or 3G RLC moulds before corresponding packet is put into
Block；Identical non-equilibrium state is all detected within default dispatching cycle, enters data flow correction.
2. according to the method described in claim 1, it is characterised in that the Bower Anchor point is eNB or radio network controller (RNC).
3. method according to claim 2, it is characterised in that the data after processing are sent to by the 3G RLC modules
NodeB is：Data after processing are sent to NodeB by 3G RLC modules by HSDPA FP modules；
Data after processing are sent to eNB and are by the 4G RLC modules：When Bower Anchor point is eNB, 4G RLC modules pass through equipment
Data after processing are sent to eNB by internal interface；When Bower Anchor point is RNC, 4G RLC modules are by X2 interface by after processing
Data are sent to eNB.
4. a kind of RLC shunts Transmission system, it is characterised in that the system includes：Bower Anchor point, eNB and NodeB；Wherein, the master
Anchor point is specifically included：PDCP modules, 3G RLC modules and 4G RLC modules,
The PDCP modules, for being scheduled to the data for needing to send, it would be desirable to which the data transfer of transmission gives 3G RLC moulds
Block and/or 4G RLC modules are handled；
The 3G RLC modules, for handling the data from PDCP modules, and the data after processing are sent to
NodeB；
The 4G RLC modules, for handling the data from PDCP modules, and the data after processing are sent to
eNB；
The eNB, for the data from 4G RLC modules to be sent into UE；
The NodeB, for the data from 3G RLC modules to be sent into UE；
The PDCP modules of the Bower Anchor point to need send data be scheduled for：According to the port numbers and 3G of packet
The non-equilibrium state of RLC module and 4G RLC modules is scheduled, and is specially：
The port numbers of Transmission Control Protocol can not be detected, then are uniformly put into 4G RLC modules；Can detect be Transmission Control Protocol situation
Under, if new port numbers occur, then corresponding packet is put into 4G RLC modules and 3G RLC modules in turn, if
The port numbers repeated occur, then the allocated corresponding 4G RLC modules or 3G RLC moulds before corresponding packet is put into
Block；Identical non-equilibrium state is all detected within default dispatching cycle, enters data flow correction.
5. system according to claim 4, it is characterised in that the Bower Anchor point is eNB or RNC.
6. system according to claim 5, it is characterised in that
The Bower Anchor point also includes HSDPA FP modules, and the data after processing are sent to NodeB and are by the 3G RLC modules：3G
Data after processing are sent to NodeB by RLC module by HSDPA FP modules；
Data after processing are sent to eNB and are by the 4G RLC modules：When Bower Anchor point is eNB, 4G RLC modules pass through equipment
Data after processing are sent to eNB by internal interface；When Bower Anchor point is RNC, 4G RLC modules are by X2 interface by after processing
Data are sent to eNB.
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| CN201110241684.0A CN102958102B (en) | 2011-08-22 | 2011-08-22 | A kind of RLC shunting transmission methods and system |
| PCT/CN2012/075042 WO2013026290A1 (en) | 2011-08-22 | 2012-05-03 | Rlc shunt transmission method and system |
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| CN201110241684.0A CN102958102B (en) | 2011-08-22 | 2011-08-22 | A kind of RLC shunting transmission methods and system |
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| CN103024816B (en) * | 2011-09-23 | 2018-01-02 | 中兴通讯股份有限公司 | Data transmission method and system |
| CN104080121B (en) | 2013-03-26 | 2019-04-26 | 中兴通讯股份有限公司 | A kind of method and system for transmitting data |
| CN103281371A (en) * | 2013-05-29 | 2013-09-04 | 滁州友林科技发展有限公司 | System and method for controlling pumping unit in long distance based on 4G mobile network |
| US9320050B2 (en) * | 2013-06-28 | 2016-04-19 | Apple Inc. | Systems and methods to enhance radio link performance in a multi-carrier environment |
| CN103782569B (en) * | 2013-07-15 | 2016-09-28 | 华为技术有限公司 | Data processing equipment and method |
| CN104519524A (en) * | 2013-09-26 | 2015-04-15 | 中兴通讯股份有限公司 | Data sorting method based on multi-stream transmission and receiving 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 |
| WO2015066923A1 (en) | 2013-11-11 | 2015-05-14 | 华为技术有限公司 | Data transmission method and device |
| CN104054388B (en) * | 2013-12-19 | 2018-06-05 | 华为技术有限公司 | The implementation method and apparatus and system of a kind of carrier aggregation |
| WO2015096030A1 (en) * | 2013-12-24 | 2015-07-02 | 华为技术有限公司 | Data transmission method, device and system |
| CN104853382B (en) | 2014-02-18 | 2020-08-25 | 中兴通讯股份有限公司 | Information interaction method, system and base station |
| KR101869634B1 (en) * | 2014-03-27 | 2018-06-20 | 후아웨이 테크놀러지 컴퍼니 리미티드 | Data distribution method and base station |
| JP2018510548A (en) | 2015-02-09 | 2018-04-12 | 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | RLC data packet offload method and base station |
| CN107306424A (en) * | 2016-04-25 | 2017-10-31 | 中兴通讯股份有限公司 | Data transmission method and device |
| CN107404734B (en) * | 2016-05-18 | 2022-08-19 | 中兴通讯股份有限公司 | Data sending method, device and system |
| CN107809771B (en) * | 2016-09-08 | 2021-08-06 | 中国移动通信有限公司研究院 | Data transmission method, C-RLC entity, D-RLC entity and inter-cell MAC entity |
| CN106304154B (en) * | 2016-09-30 | 2019-07-26 | 京信通信系统（中国）有限公司 | A kind of data transmission method and PDCP entity of PDCP entity |
| CN110932986B (en) * | 2018-09-20 | 2023-04-07 | 中国电信股份有限公司 | Data packet distribution method and device and computer readable storage medium |
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