CN101932004B - Data sending and processing method and equipment for data link layer - Google Patents
Data sending and processing method and equipment for data link layer Download PDFInfo
- Publication number
- CN101932004B CN101932004B CN2009100879111A CN200910087911A CN101932004B CN 101932004 B CN101932004 B CN 101932004B CN 2009100879111 A CN2009100879111 A CN 2009100879111A CN 200910087911 A CN200910087911 A CN 200910087911A CN 101932004 B CN101932004 B CN 101932004B
- Authority
- CN
- China
- Prior art keywords
- indication
- rlc
- cascade
- sdu
- rlc sdu
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000003672 processing method Methods 0.000 title claims abstract description 12
- 238000012545 processing Methods 0.000 claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 230000002776 aggregation Effects 0.000 claims abstract description 5
- 238000004220 aggregation Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 26
- 230000011218 segmentation Effects 0.000 claims description 22
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 230000007774 longterm Effects 0.000 abstract description 5
- 230000008569 process Effects 0.000 description 11
- 238000004590 computer program Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241000931705 Cicada Species 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Abstract
The invention discloses a data sending and processing method and data sending and processing equipment for a data link layer. The data sending and processing method for the data link layer comprises the following steps of: receiving a packet data unit of a packet data aggregation protocol layer; cascading a service data unit of a wireless link control layer and generating a corresponding length indication; after receiving a transmission format indication sent by a media access control layer, selecting the cascaded service data unit of the wireless link control layer according to the length indication in the transmission format indication to generate a load part of the packet data unit of the wireless link control layer, adding the length indication which corresponds to the selected service data unit of the wireless link control layer to a head, and forming the packet data unit of the wireless link control layer; and sending the formed packet data unit of the wireless link control layer. The data sending and processing method and the data sending and processing equipment for the data link layer can meet the requirement of high-speed service transmission, and also can meet the demands of high transmission speed and high processing complexity of a long-term evolution updating system.
Description
Technical field
The present invention relates to the communication technology, particularly a kind of data sending processing method and apparatus of data link layer.
Background technology
Fig. 1 is up data link layer (Layer 2, layer 2) structural representation, and is as shown in the figure; In LTE (Long Term Evolution, Long Term Evolution) system, user data package arrives PDCP (Packet Data Convergence Protocol; PDCP) layer; Carry out operations such as head compression, encryption, increase head construction by PDCP after, form PDCP PDU (Packet Data UNit, Packet Data Unit); Be sent to RLC (Radio Link Control, Radio Link control) layer.Rlc layer is to these RLC SDU (Service Data UNit; Service Data Unit) further carries out suitable cascade (concatenation), segmentation (segmentation) and increase head construction again according to the requirement of the concrete transformat of low layer; Form the RLC PDU of suitable size; Being sent to the further again group bag of MAC (Medium Access Control, medium access control) layer sends.
Fig. 2 is up Layer 2 processing procedure sketch mapes; As shown in the figure, in order to improve treatment effeciency, can consider part PDCP SDU is anticipated; Form PDCP PDU; When sending the transformat indication, only need in real time RLC SDU to be carried out cascade and segment processing, form RLC PDU on the MAC layer.
In the LTE system design, require UE (User Equipment; Subscriber equipment) peak rate maximum reaches 100Mbps; Then every TTI (Transmission Time Interval, transmission/transmission time interval) data quantity transmitted is 12.5Kbytes to the maximum, according to present IP (Internet Protocol; Internet Protocol) upper limit of the maximum 1500bytes of bag is calculated, and every TTI layer two needs to handle and about 9 the high level data bags of cascade.But reality the packet less than 1500bytes also possibly occur according to the burst characteristic of service source and the difference of host-host protocol, so the disposal ability of layer two at least should be greater than this requirement.
In the later stage of LTE system design, from the needs that the design of UE disposal ability given certain reference, confirmed the reference value of the maximum PDCP SDU number that descending every TTI handles, as shown in table 1.
Table 1 is the descending maximum PDCP SDU number of every TTI:
| UE Category (classification) | ?Maximum?number?of?PDCP?SDUs?per?TTI |
| Category?1 | 10 |
| Category?2 | 10 |
| Category?3 | 20 |
| Category?4 | 30 |
| Category?5 | 50 |
LTE-A (Long Term Evolution-Advance; Long-term evolution upgrading) peak rate of the up maximum 500Mbps of the descending maximum 1Gbps of UE in the requirement of system design; Wrap the upper limit of maximum 1500bytes calculates with IP; Every TTI layer two needs to handle and the high level data bag of cascade need reach 84 at least, even considering that real data is surrounded by appearance maybe be less than the situation of 1500bytes, the disposal ability of layer two is required also can be higher; Therefore, the deficiency of prior art is: existing Treatment Design differs and satisfies the peak rate of LTE-A system and the requirement of disposal ability surely.
Summary of the invention
The technical problem that the present invention solved has been to provide a kind of data sending processing method and apparatus of data link layer.
A kind of data sending processing method of data link layer is provided in the embodiment of the invention, has comprised the steps:
Receiving block data convergence protocol Packet Data Unit PDCP PDU;
Cascade RLC SDU also generates corresponding Length Indication, and said RLC SDU is PDCP PDU;
After receiving the transformat indication that the media access control MAC layer sends; Loading section according to the RLC SDU generation RLC PDU after the Length Indication selection cascade in the transformat indication forms wireless chain control layer Packet Data Unit RLCPDU after the corresponding Length Indication of RLC SDU that the head interpolation is selected; Corresponding Length Indication representes with LI+E, and the LI territory is in order to length that each SDU or SDU segmentation are described, and corresponding one by one between LI and the SDU segmentation, last segmentation does not need LI, and said E territory is data or LI in order to the indication followed;
Send the RLC PDU that forms.
Preferably, when cascade RLC SDU, according to disposal ability, service rate, current data amount and before give out a contract for a project one of big or small factor perhaps the RLC SDU number or the RLC SDU total bytes of the definite cascade of its combination of RLC entity.
Preferably, during the RLC SDU length of the length in transformat indication after, further comprise greater than cascade:
RLC SDU is cascaded to the length in reaching the transformat indication among the RLC SDU after the cascade, and generates corresponding Length Indication;
When head adds the corresponding Length Indication of selecting of RLC SDU, add corresponding Length Indication.
Preferably; Under the CA situation; Each carrier transmission form indication is separate; Loading section according to the RLC SDU generation RLC PDU after the Length Indication selection cascade in each transformat indication forms wireless chain control layer Packet Data Unit RLC PDU after the corresponding Length Indication of RLC SDU that the head interpolation is selected;
Send the corresponding RLC PDU of each transformat indication respectively.
A kind of data sending processing equipment of data link layer is provided in the embodiment of the invention, has comprised:
Receiver module is used to receive PDCP PDU; Cascade module is used for cascade RLC SDU and generates corresponding Length Indication, and said RLC SDU is PDCP PDU;
Processing module; Be used for after receiving the transformat indication that the MAC layer sends; Loading section according to the RLC SDU generation RLC PDU after the Length Indication selection cascade in the transformat indication forms RLC PDU after the corresponding Length Indication of RLC SDU that the head interpolation is selected; Corresponding Length Indication representes with LI+E, and the LI territory is in order to length that each SDU or SDU segmentation are described, and corresponding one by one between LI and the SDU segmentation, last segmentation does not need LI, and said E territory is data or LI in order to the indication followed;
Sending module is used to send the RLC PDU of formation.
Preferably; Said cascade module is further used for when cascade RLC SDU, according to disposal ability, service rate, current data amount and before give out a contract for a project one of big or small factor perhaps the RLC SDU number or the RLC SDU total bytes of the definite cascade of its combination of RLC entity.
Preferably; When said cascade module is further used for RLC SDU length after greater than cascade of length in transformat indication; RLC SDU is cascaded to the length in reaching the transformat indication among the RLC SDU after the cascade, and generates corresponding Length Indication;
Said processing module is further used for when head adds the corresponding Length Indication of selecting of RLC SDU, adding corresponding Length Indication.
Preferably; Said processing module is further used under the CA situation; Each carrier transmission form indication is separate; Loading section according to the RLC SDU generation RLC PDU after the Length Indication selection cascade in each transformat indication forms RLC PDU after the corresponding Length Indication of RLC SDU that the head interpolation is selected;
Said sending module is further used for sending respectively the corresponding RLC PDU of each transformat indication.
Beneficial effect of the present invention is following:
In implementation process of the present invention, after receiving PDCP PDU, cascade RLC SDU also generates corresponding Length Indication; Like this after receiving the transformat indication that the MAC layer sends; Generate the loading section of RLC PDU according to the RLC SDU after the Length Indication selection cascade in the transformat indication; After the corresponding Length Indication of RLC SDU that head add to be selected, form RLC PDU and send the RLCPDU that forms, owing to after receiving PDCP PDU, just carry out data block cascade preliminary treatment, that is: cascade RLC SDU and generate corresponding Length Indication; Like this; After receiving the transformat indication, directly the data of intercepting Len req add that header structure just can form RLC PDU from the RLCSDU of cascade, have therefore alleviated the processing expenditure of rlc layer; Thereby can save the real-time processing expenditure of RLC; Shorten the real-time processing time, made that the scheme in the embodiment of the invention can satisfy the high-rate service transmission requirements, also can expire the requirement of the high processing complexity of LTE-A system high transfer rate.
Description of drawings
Fig. 1 is a up data link layer structural representation in the background technology;
Fig. 2 is up Layer 2 processing procedure sketch mapes in the background technology;
Fig. 3 is the data sending processing method implementing procedure sketch map of data link layer in the embodiment of the invention;
Fig. 4 is the method for receiving and processing data implementing procedure sketch map of data link layer in the embodiment of the invention;
Fig. 5 is a data block cascade preliminary treatment sketch map in the embodiment of the invention;
Fig. 6 is the data block cascade preliminary treatment sketch map under the CA in the embodiment of the invention;
Fig. 7 is the data sending processing device structure sketch map of data link layer in the embodiment of the invention.
Embodiment
The inventor notices in the invention process: in LTE R8 system, and the maximum peak rate of supporting 100Mbit/s of UE.In the demand of LTE-Advanced (LTE-A); Need support ITU-R (ITU-Radio communications sector at least; International Telecommunications Union's radio communication group) IMT-Advanced (the International Mobile Telecommunications-Advanced of defined in; International mobile telecommunication is optimized) demand: under the scene of high-speed mobile, support the peak rate of 100Mbit/s; Under the scene that low speed moves, support the peak rate of 1Gbit/s.The target of LTE-A is the peak rate that reaches descending 1Gbps and up 500Mbps.Significantly improving of peak rate, for RLC, the processing complexity of every TTI also increases.Therefore; To provide in the embodiment of the invention a kind of can be adapted at least the LTE-A system in the pretreated processing scheme of RLC, when big rate business, in this programme packet is carried out data cascade preliminary treatment at rlc layer; In advance some RLC SDU are carried out cascade and construct header structure; After waiting to receive that low layer sends the form indication, only need simple operations immediately required big RLC PDU to be sent, this scheme is under the situation of the high processing complexity of peak value speed; Can satisfy the requirement of treatment effeciency, accomplish the high rate data transmission of LTE-A.
Describe below in conjunction with the accompanying drawing specific embodiments of the invention.
Fig. 3 is the data sending processing method implementing procedure sketch map of data link layer, and is as shown in the figure, in sending processing procedure, can comprise the steps:
The RLC SDU of this step cascade can be PDCP PDU, does not need between RLC SDU and the PDCP PDU to handle.
Receive PDCP PDU, and beginning cascade RLC SDU and to generate corresponding Length Indication be before receiving the transformat indication that the MAC layer sends, just to begin.
The RLC PDU that step 304, transmission form.
Wherein, For the ease of statement; In the embodiment of the invention step 302 is called data block cascade preliminary treatment, the corresponding Length Indication that generates during with cascade RLC SDU representes that with LI+E wherein: the LI territory is in order to explain the length of each SDU or SDU segmentation; Corresponding one by one between LI and the SDU segmentation, the E territory is data or LI in order to the indication followed.
Visible by above-mentioned enforcement; PDCP sends the PDCP PDU that disposes in advance to rlc layer; Rlc layer carries out certain data block cascade preliminary treatment to it; Comprise data block carried out cascade and generated corresponding LI+E indication that when treating that the MAC layer is sent the indication of transmission form, rlc layer just can directly form final RLC PDU according to indication.
When receiving the transmission form indication that the MAC layer is sent; RLC is to the loading section of the suitable length of the direct intercepting of the data block of preparatory cascade as PDU, and LI+E makes up also intercepting on demand, and other part that only need add header structure again promptly can be formed complete RLC PDU and mail to MAC; It is thus clear that; Owing to carried out data block cascade preliminary treatment, therefore can accelerate to receive the MAC layer and send indication and the speed of returning RLCPDU by indication, improved the data-handling efficiency of rlc layer.
For how embodiment of the present invention better is described, corresponding, also the method for receiving and processing data of data link layer is introduced in the embodiment of the invention, describe below.
Fig. 4 is the method for receiving and processing data implementing procedure sketch map of data link layer, and is as shown in the figure, when receiving processing, can comprise the steps:
The RLC PDU that step 401, reception MAC layer send;
Step 402, according to the Length Indication of head RLC PDU is handled and to form RLC SDU;
Step 403, PDCP PDU is sent to PDCP.
To describe sending the embodiment of handling with receiving processing below.Is the process that adapts owing to sending processing in the embodiment of the invention with receiving processing; Therefore, in the execution mode explanation below, for the ease of understanding execution mode of the present invention on the whole; Describe not handling, receive the mode of handling respectively from sending; But unified describing, obviously, this does not also mean that the present invention must send and receive processing simultaneously.
When the cascade of execution in step 302 forms PDCP PDU, can be specially:
When cascade RLC SDU, can be according to disposal ability, service rate, current data amount and before give out a contract for a project one of big or small factor perhaps the RLC SDU number or the RLC SDU total bytes of the definite cascade of its combination of RLC entity.Concrete; When RLC carries out data block cascade preliminary treatment; Can begin from waiting first RLC SDU or the RLC SDU segmentation sent out, the SDU number of cascade or SDU total bytes can be by disposal ability, service rate, current data amount and the decisions of factors such as the size of giving out a contract for a project before in advance.
In force, in the time of RLC SDU length after greater than cascade of length in the transformat indication may occurring, may further include this moment when execution in step 303:
RLC SDU is cascaded to the length in reaching the transformat indication among the RLC SDU after the cascade, and generates corresponding Length Indication;
When head adds the corresponding Length Indication of selecting of RLC SDU, add corresponding Length Indication.
Promptly; When receiving the transmission form indication that the MAC layer is sent; The pretreated data block of RLC is less than sending the form size; The cascade and the LI+E that then can be as required directly after cascade data piece in advance and LI+E combination, increase new SDU, and other part of interpolation header structure is promptly formed complete RLC PDU and is mail to MAC again.
In the enforcement, when in execution in step 303, if adopted CA (Carrier Aggregation; Carrier aggregation), because RLC can not know carrier information, for it; The difference of maximum under the CA is that each transmission time N transformat that might come up indicated; The carrier number that N gives out a contract for a project for scheduling, and under the CA situation, each carrier transmission form indication is separate; Therefore can generate the loading section of RLC PDU according to the RLC SDU after the Length Indication selection cascade in each transformat indication, after the corresponding Length Indication of RLC SDU that the head interpolation is selected, form wireless chain control layer Packet Data Unit RLC PDU; Send the corresponding RLC PDU of each transformat indication then respectively.
Accordingly, behind the RLC PDU that receives the transmission of MAC layer, just can handle formation RLC SDU to RLC PDU easily according to the Length Indication of head.
Embodiment of the present invention describe below with instantiation for better explaining.
Embodiment one
Fig. 5 is data block cascade preliminary treatment sketch map, and is as shown in the figure, sends before indication arrives at low layer, and PDCP accomplishes operative configuration PDCP PDU such as head compression and the encryption of a certain amount of PDCP SDU and is sent to rlc layer; Just can carry out cascade and generate corresponding head length indication RLC SDU at data block pretreatment stage rlc layer then, treat that the MAC layer sends after the form indication arrives, the PDU size according to actual needs packages again.
Can find out by figure, at data block cascade pretreatment stage, data block N to N+K cascade, and generated corresponding LI
0+ E to LI
K-1+ E, when the MAC layer sends after the form indication arrives, but directly the RLC SDU after the cascade of just intercepting indicating length forms the data division of RLC PDU, and this part illustrates with payload (payload) among the figure, and adds LI+E into that head is used for discerning.When receiving terminal is handled, just can identify corresponding RLC SDU through LI+E.
Embodiment two
Fig. 6 is for the data block cascade preliminary treatment sketch map under the CA, and is as shown in the figure, considers that the LTE-A system introduces the CA technology, and the RLC PDU number that every TTI sends is relevant with carrier number.Send before indication arrives at low layer, PDCP accomplishes operative configuration PDCPPDU such as head compression and the encryption of a certain amount of PDCP SDU and is sent to rlc layer.Just can carry out cascade and generate corresponding head length indication RLC SDU at data block pretreatment stage rlc layer then, treat that the MAC layer sends after the form indication arrives, a plurality of PDU sizes according to the actual needs of each carrier wave package again.
By in order to can find out among Fig. 6 of example, at data block cascade pretreatment stage, data block N to N+K cascade, and generated corresponding LI
0+ E to LI
K+ E then generates three RLC PDU according to the indication of each carrier wave respectively in the group bag stage, and obviously, this figure does not represent to form three RLC PDU just in order to explanation, perhaps only generates the RLC PDU shown in the figure, describes below.
RLC PDU1: directly select the first half of RLC SDU N, RLC SDUN+1, RLC SDU N+2 to put into the payload part the RLC SDU after cascade, and with LI
0+ E, LI
1+ E adds into, and head is used for identification;
RLC PDU2: the latter half of directly selecting RLC SDU N+2 the RLC SDU after cascade is put into the payload part to RLC SDU N+K, and with LI
2 ' '+ E to LI
K-1+ E adds into, and head is used for identification; Wherein, LI
2What indicate is the entire length of SDU2, LI
2 ' 'What expression was indicated is the length of latter half.
RLC PDU3: directly select the latter half of RLC SDU N+K to put into the payload part the RLC SDU after cascade; But this data block length is not enough; Therefore select to put into the payload part after cascade, the not new RLC SDU N+K+1 cascade, corresponding, with LI
K ' '+ E adds into, and head is used for identification; Wherein, LI
KWhat indicate is the entire length of SDU N+K, LI
K ' 'What expression was indicated is the length of latter half.
In the enforcement, the LI territory among the PDU is in order to the length that each SDU or SDU segmentation are described, and is corresponding one by one between LI and the SDU segmentation, but last segmentation does not need LI, and therefore the number of total LI should be that the segmentation number subtracts one.And the E territory be in order to the indication followed be data or LI.
Based on same inventive concept; A kind of data sending processing equipment of data link layer also is provided in the embodiment of the invention; Because the principle that equipment is dealt with problems is similar with a kind of data sending processing method of data link layer; Therefore the enforcement of equipment can repeat part and not give unnecessary details referring to the enforcement of method.
Fig. 7 is the data sending processing device structure sketch map of data link layer, and is as shown in the figure, sends in the treatment facility to comprise:
Sending module 704 is used to send the RLC PDU of formation.
In the enforcement, after receiver module 701 receives PDCP PDU, begin to carry out the data block preliminary treatment, that is: cascade module 702 cascade RLC SDU and generate corresponding Length Indication; After receiving the transformat indication that the MAC layer sends; The loading section of the RLC SDU generation RLC PDU after the cascade, formation RLC PDU after the corresponding Length Indication of RLC SDU that the head interpolation is selected are selected in Length Indication during processing module 703 is indicated according to transformat; Sending module 704 sends the RLC PDU that forms then.
In the enforcement; Cascade module can be further used for when cascade RLC SDU, according to disposal ability, service rate, current data amount and before give out a contract for a project one of big or small factor perhaps the RLC SDU number or the RLC SDU total bytes of the definite cascade of its combination of RLC entity.
In the enforcement; When cascade module can be further used for RLC SDU length after greater than cascade of length in transformat indication; RLC SDU is cascaded to the length in reaching the transformat indication among the RLC SDU after the cascade, and generates corresponding Length Indication;
Then processing module also can be further used for when head adds the corresponding Length Indication of selecting of RLC SDU, adding corresponding Length Indication.
In the enforcement; Under the CA situation; Each carrier transmission form indication is separate; Processing module can be further used for generating according to the RLC SDU after the Length Indication selection cascade in each transformat indication the loading section of RLC PDU, after the corresponding Length Indication of RLC SDU that the head interpolation is selected, forms RLC PDU;
Then sending module can be further used for sending respectively the corresponding RLCPDU of each transformat indication.
For the convenience of describing, the each several part of the above device is divided into various modules with function or the unit is described respectively.Certainly, when embodiment of the present invention, can in same or a plurality of softwares or hardware, realize the function of each module or unit.
To sum up can know; During the present invention implements; PDCP sends the PDCP PDU that disposes in advance to rlc layer, and rlc layer carries out certain data block cascade preliminary treatment to it, comprises data block is carried out cascade and generated corresponding LI+E indication; When treating that the MAC layer is sent the indication of transmission form, rlc layer forms final RLC PDU according to it.
Further; Carrying out data block cascade preliminary treatment at rlc layer begins from waiting first SDU or the SDU segmentation sent out; The SDU number or the SDU total bytes of cascade can be by disposal abilities in advance, service rate, current data amount and the decision of factors such as the size of giving out a contract for a project before.
Further; When receiving the transmission form indication that the MAC layer is sent; RLC is to the loading section of the suitable length of the direct intercepting of the data block of preparatory cascade as PDU, and LI+E makes up also intercepting on demand, and other part of adding header structure is more promptly formed complete RLC PDU and mail to MAC.
Further; Can also be when receiving the transmission form indication that the MAC layer is sent; The pretreated data block of RLC is when sending the form size; Then directly after cascade data piece in advance and LI+E combination, increasing cascade and the LI+E of new SDU as required, and other part of interpolation header structure is promptly formed complete RLCPDU and is mail to MAC.
Further; Under the CA situation; Each carrier transmission form indication is separate, can generate the loading section of RLC PDU according to the RLC SDU after the Length Indication selection cascade in each transformat indication, after the corresponding Length Indication of RLC SDU that the head interpolation is selected, forms RLC PDU; And send each transformat respectively and indicate corresponding RLC PDU.
The technical scheme that proposes in the embodiment of the invention can be used under the situation of the high processing complexity of LTE-A system high transfer rate, can save the real-time processing expenditure of RLC, thereby shorten the real-time processing time, satisfies the high-rate service transmission requirements.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of the embodiment of complete hardware embodiment, complete software implementation example or combination software and hardware aspect.And the present invention can be employed in the form that one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code go up the computer program of implementing.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out through the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in ability vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work; Make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device; Make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of on computer or other programmable devices, carrying out is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic inventive concept could of cicada, then can make other change and modification to these embodiment.So accompanying claims is intended to be interpreted as all changes and the modification that comprises preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (6)
1. the data sending processing method of a data link layer is characterized in that, comprises the steps:
Receiving block data convergence protocol Packet Data Unit PDCP PDU;
Cascade wireless link control layer service data cell RLC SDU also generates corresponding Length Indication, and said RLC SDU is PDCP PDU; Wherein, when cascade RLC SDU, according to disposal ability, service rate, current data amount and before give out a contract for a project one of big or small factor perhaps the RLC SDU number or the RLC SDU total bytes of the definite cascade of its combination of RLC entity;
After receiving the transformat indication that the media access control MAC layer sends; Loading section according to the RLC SDU generation wireless chain control layer Packet Data Unit RLC PDU after the Length Indication selection cascade in the transformat indication forms RLC PDU after the corresponding Length Indication of RLC SDU that the head interpolation is selected; Corresponding Length Indication representes with LI+E, and the LI territory is in order to length that each SDU or SDU segmentation are described, and corresponding one by one between LI and the SDU segmentation, last segmentation does not need LI, and said E territory is data or LI in order to the indication followed;
Send the RLC PDU that forms.
2. the method for claim 1 is characterized in that, during the RLC SDU length of the length in transformat indication after greater than cascade, further comprises:
RLC SDU is cascaded to the length in reaching the transformat indication among the RLC SDU after the cascade, and generates corresponding Length Indication;
When head adds the corresponding Length Indication of selecting of RLC SDU, add corresponding Length Indication.
3. according to claim 1 or claim 2 method; It is characterized in that; Under carrier aggregation CA situation; Each carrier transmission form indication is separate, and the loading section according to the RLC SDU after the Length Indication selection cascade in each transformat indication generates RLC PDU forms wireless chain control layer Packet Data Unit RLC PDU after the corresponding Length Indication of RLC SDU that the head interpolation is selected;
Send the corresponding RLC PDU of each transformat indication respectively.
4. the data sending processing equipment of a data link layer is characterized in that, comprising:
Receiver module is used for receiving block data convergence protocol Packet Data Unit PDCP PDU;
Cascade module is used for cascade wireless link control layer service data cell RLC SDU and generates corresponding Length Indication, and said RLC SDU is PDCP PDU; Said cascade module is further used for when cascade RLC SDU, according to disposal ability, service rate, current data amount and before give out a contract for a project one of big or small factor perhaps the RLC SDU number or the RLC SDU total bytes of the definite cascade of its combination of RLC entity;
Processing module; Be used for after receiving the transformat indication that the media access control MAC layer sends; Loading section according to the RLC SDU generation RLC PDU after the Length Indication selection cascade in the transformat indication forms RLC PDU after the corresponding Length Indication of RLC SDU that the head interpolation is selected;
Corresponding Length Indication representes with LI+E, and the LI territory is in order to length that each SDU or SDU segmentation are described, and corresponding one by one between LI and the SDU segmentation, last segmentation does not need LI, and said E territory is data or LI in order to the indication followed;
Sending module is used to send the RLC PDU of formation.
5. transmission treatment facility as claimed in claim 4; It is characterized in that; When said cascade module is further used for RLC SDU length after greater than cascade of length in transformat indication; RLC SDU is cascaded to the length in reaching the transformat indication among the RLC SDU after the cascade, and generates corresponding Length Indication;
Said processing module is further used for when head adds the corresponding Length Indication of selecting of RLC SDU, adding corresponding Length Indication.
6. like claim 4 or 5 arbitrary described transmission treatment facilities; It is characterized in that; Said processing module is further used under carrier aggregation CA situation; Each carrier transmission form indication is separate, and the loading section according to the RLC SDU after the Length Indication selection cascade in each transformat indication generates RLC PDU forms RLC PDU after the corresponding Length Indication of RLC SDU that the head interpolation is selected;
Said sending module is further used for sending respectively the corresponding RLC PDU of each transformat indication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100879111A CN101932004B (en) | 2009-06-25 | 2009-06-25 | Data sending and processing method and equipment for data link layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100879111A CN101932004B (en) | 2009-06-25 | 2009-06-25 | Data sending and processing method and equipment for data link layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101932004A CN101932004A (en) | 2010-12-29 |
| CN101932004B true CN101932004B (en) | 2012-07-04 |
Family
ID=43370849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100879111A Active CN101932004B (en) | 2009-06-25 | 2009-06-25 | Data sending and processing method and equipment for data link layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101932004B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103535002B (en) * | 2011-08-19 | 2016-10-05 | 华为技术有限公司 | The transmission method of handshaking information and equipment |
| CN102300259B (en) * | 2011-09-16 | 2015-06-10 | 电信科学技术研究院 | Data block concatenation and splitting processing method, device and system |
| CN102348292B (en) * | 2011-09-28 | 2014-04-09 | 电信科学技术研究院 | Data transmission method and device based on MAC (media access control) sublayer and RLC (radio link control) sublayer |
| CN103138873B (en) * | 2011-11-23 | 2018-02-02 | 宁夏恒信捷通信息技术服务有限公司 | The acquisition methods and equipment of two Packet Delay of layer |
| CN104509042B (en) * | 2012-08-03 | 2017-11-17 | 华为技术有限公司 | A kind of data processing method, base station and user equipment |
| CN108551681B (en) | 2012-11-29 | 2022-01-14 | 华为技术有限公司 | Data transmission control method, device and system |
| WO2014185648A1 (en) | 2013-05-15 | 2014-11-20 | Lg Electronics Inc. | Method for allocating uplink resources in a wireless communication system and a device therefor |
| CN103517335B (en) * | 2013-09-18 | 2016-06-15 | 北京创毅讯联科技股份有限公司 | Data group bag method and apparatus |
| CN106375230B (en) * | 2015-07-20 | 2020-05-12 | 中兴通讯股份有限公司 | Message transmission method and device |
| CN108024374A (en) | 2016-11-03 | 2018-05-11 | 电信科学技术研究院 | A kind of method and system for carrying out data sending and receiving |
| CN108668320B (en) | 2017-03-31 | 2020-11-03 | 维沃移动通信有限公司 | Segment packing method and receiving end |
| CN108882304B (en) * | 2017-05-12 | 2020-12-04 | 中国移动通信有限公司研究院 | Method and device for encapsulating data packet in data link layer |
| CN107708153B (en) * | 2017-09-29 | 2019-11-15 | 重庆邮电大学 | A kind of radio modem ascending packet data processing method |
| WO2021152378A1 (en) * | 2020-01-28 | 2021-08-05 | Zeku Inc. | Layer 2 downlink data in-line processing using integrated circuits |
| CN115551006A (en) * | 2021-06-30 | 2022-12-30 | 华为技术有限公司 | Data transmission method, device and system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101222484A (en) * | 2007-01-09 | 2008-07-16 | 中兴通讯股份有限公司 | Method for implementing protocol data unit of wireless links control layer |
| WO2008127034A1 (en) * | 2007-04-11 | 2008-10-23 | Samsung Electronics Co., Ltd. | Method and apparatus for transmitting and receiving packet data unit in mobile communication system |
-
2009
- 2009-06-25 CN CN2009100879111A patent/CN101932004B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101222484A (en) * | 2007-01-09 | 2008-07-16 | 中兴通讯股份有限公司 | Method for implementing protocol data unit of wireless links control layer |
| WO2008127034A1 (en) * | 2007-04-11 | 2008-10-23 | Samsung Electronics Co., Ltd. | Method and apparatus for transmitting and receiving packet data unit in mobile communication system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101932004A (en) | 2010-12-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101932004B (en) | Data sending and processing method and equipment for data link layer | |
| CN101932128B (en) | Data receiving, transmitting and processing method and equipment for data link layer | |
| CN101977359B (en) | Method and device for processing mobile data service | |
| EP2183890B1 (en) | Aggregate data frame generation | |
| CN102300259B (en) | Data block concatenation and splitting processing method, device and system | |
| CN107404734B (en) | Data sending method, device and system | |
| US20080298340A1 (en) | Method and Apparatus for Improving Transmission of Downlink Shared Channel in a Wireless Communications System | |
| CN105517053B (en) | Reduce the method and system that protocol data unit of wireless links control layer is segmented again | |
| CN102655448A (en) | Data transmission method for medium access control layer of long-term evolution system | |
| CN107005560A (en) | A kind of data transmission method for uplink, data receiver method and relevant device | |
| CN101552656A (en) | Method and apparatus of transmission time interval bundling management | |
| CN108811154A (en) | Data pack transmission method and equipment | |
| WO2018082595A1 (en) | Data transmission method and device, and base station | |
| CN102348292A (en) | Data transmission method and device based on MAC (media access control) sublayer and RLC (radio link control) sublayer | |
| CN109451593A (en) | The device and method that processing changes for the carrying kenel of radio bearer | |
| CN102158899A (en) | Data forwarding method in relay network, device and system | |
| CN103001748B (en) | A kind of method of data re-transmission and data retransmission process, equipment | |
| CN106160949A (en) | The transmission of feedback information and control method thereof and equipment | |
| US20230015837A1 (en) | Method and apparatus for transmitting data in communication system | |
| CN104135456B (en) | A kind of carrier polymerizing method of LTE system | |
| CN105007137B (en) | A kind of data package processing method and RLC entities of rlc layer | |
| WO2016061987A1 (en) | Packet processing method and device | |
| CN108012289B (en) | PDU (protocol data Unit) sending method and device and PDU receiving method and device | |
| CN103346945A (en) | Method, device and system for transmitting data of CAPWAP tunnel | |
| CN108809563A (en) | A kind of business datum preprocess method and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: INST OF TELECOMMUNICATION SCIENCE AND TECHNOLGOY Free format text: FORMER OWNER: DATANG MOBILE COMMUNICATION EQUIPMENT CO., LTD. Effective date: 20110421 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100083 NO. 29, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING TO: 100191 NO. 40, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20110421 Address after: 100191 Haidian District, Xueyuan Road, No. 40, Applicant after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100083 Haidian District, Xueyuan Road, No. 29, Applicant before: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20210528 Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
|
| TR01 | Transfer of patent right |