CN102790667B - A kind of method processing re-transmission data and base station - Google Patents
A kind of method processing re-transmission data and base station Download PDFInfo
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- CN102790667B CN102790667B CN201110129163.6A CN201110129163A CN102790667B CN 102790667 B CN102790667 B CN 102790667B CN 201110129163 A CN201110129163 A CN 201110129163A CN 102790667 B CN102790667 B CN 102790667B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1874—Buffer management
Abstract
The present invention provides a kind of method and base station processing and retransmitting data, and the method includes: after base station receives the state report that structure retransmits message, the first hardware retransmission queue is applied in the instruction reported according to this state；The descriptor of the data retransmitted is needed to be stored in the first hardware retransmission queue the report instruction of described state；The re-transmission data utilizing hardware queue administrative mechanism to specify the first hardware retransmission queue are recombinated and transmit.Can reduce processor resource significantly according to the present invention constantly to be taken by small number of service, can improve the disposal ability of single-chip, reduce product cost, the application of the present invention can reduce chip size and improve disposal ability simultaneously.
Description
Technical field
The present invention relates to a kind of communications field, particularly to a kind of method processing re-transmission data and base station.
Background technology
RLC(RadioLinkControl, wireless spread-spectrum technology) protocol layer is at LTE(LongTermEvolution, Long Term Evolution) system Radio interface protocols stack in, a layer 2(L2) a sublayer, it is positioned at MAC(MediaAccessControl, medium education) on layer, rlc protocol layer is user and controls data and provide segmentation and the business of re-transmission.The function of rlc protocol layer includes: link controls, encapsulates and recombinate, cascading, user data transmission, error correction, protocol error detection and reparation etc..Each rlc protocol entity is configured by RRC, and operate with Three models, it is respectively as follows: transparent mode (TransparentMode is called for short TM), Unacknowledged Mode (UnacknowledgedMode, be called for short UM), affirmation mode (AcknowledgedMode, be called for short AM).
In affirmation mode, sending side is transmitted after adding necessary control protocol expense on high level data, and ensures to be delivered to peer-entities.For confirming that the rlc layer protocol instance under (AM) pattern is processing local terminal PDU(ProtocolDataUnit, protocol Data Unit) time, process local terminal PDU being carried out to next step is made in the state report sent according to peer layer.If indicated previous time in the state report received in the PDU sent, part or all does not sends successfully, then, confirm that local terminal PDU can be split according to the instruction in state report by the RLC example under (AM) pattern, and retransmit.
In carrying out affirmation mode retransmission processes, in order to different business is carried out reliability differentiation in agreement, formulated maxRetxThreshold(maximum retransmission) definition, be used for retrain the number of retransmissions that this business at most can be carried out.
Current realization uses software according to each TTI(TransmissionTimeInterval, Transmission Time Interval) scheduling resource carry out PDU cutting and complete group bag, need to move work by what cpu instruction completed data in EMS memory, it is the most excessively poor that this instruction completes the own efficiency of operation that internal memory moves, it it is undisputable fact, also it is to need when design system to avoid obtaining a kind of behavior as system designer as far as possible, when retransmission operation frequent operation, the heaviest load can be caused to have gone these work CPU and rambus, there is the problem that retransmission process is inefficient in such tupe, and cause base station processor resource constantly to be taken by small number of service, cause other customer services to process to be affected, even result in base station paralysis.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method and base station processing and retransmitting data, takies processor resource to reduce, improves retransmission process efficiency.
In order to solve above-mentioned technical problem, the invention provides a kind of method processing and retransmitting data, including:
After base station receives the state report that structure retransmits message, the first hardware retransmission queue is applied in the instruction reported according to this state;
The descriptor of the data retransmitted is needed to be stored in the first hardware retransmission queue the report instruction of described state；
The re-transmission data utilizing hardware queue administrative mechanism to specify the first hardware retransmission queue are recombinated and transmit.
Further, said method also has a following feature: described base station utilizes hardware queue administrative mechanism to recombinate the re-transmission data that the first hardware retransmission queue is specified and the step transmitted includes:
Described base station scheduling transmission block, size according to described transmission block obtains the corresponding descriptor retransmitting data from the first hardware retransmission queue and is articulated in the second hardware retransmission queue, then the re-transmission data of the second hardware retransmission queue instruction is filled in described transmission block transmission.
Further, said method also has following feature: after described base station scheduling transmission block, also include:
If described base station judges that described transmission block is less than threshold value, then from the first hardware retransmission queue, obtain the descriptor of corresponding retransmission node according to the size of minimal hardware retransmission queue to be articulated in minimal hardware retransmission queue, then send the re-transmission data of described minimal hardware retransmission queue instruction.
Further, said method also has following feature: the step that the re-transmission data that the second hardware retransmission queue indicates are filled into described transmission block is included by described base station:
Described base station judges whether the length of the retransmission node in the second hardware retransmission queue is less than the residue length of described transmission block successively, the most directly the re-transmission data of described retransmission node are filled into described transmission block；Otherwise, from this retransmission node, intercept re-transmission data and fill full described transmission block.
Further, said method also has following feature: the report instruction of described state is needed the descriptor of the data retransmitted also to include during being stored in the first hardware retransmission queue by described base station:
Preserve the corresponding relation of the queue identity of the first hardware retransmission queue and the descriptor of described re-transmission data, preserve descriptor linking relationship in the first hardware retransmission queue of described re-transmission data, preserve the corresponding relation of leading address that described re-transmission data store in internal memory and the descriptor of described re-transmission data, preserve described re-transmission data linking relationship of the address of burst storage in internal memory, and preserve the burst descriptor of described re-transmission data and the corresponding relation of burst storage address.
In order to solve the problems referred to above, present invention also offers a kind of base station, including:
Application module, retransmit the state report of message for receiving structure after, the first hardware retransmission queue is applied in the instruction reported according to this state；
Memory module, for needing the descriptor of the data retransmitted to be stored in the first hardware retransmission queue the report instruction of described state；
Transport module, recombinates for the re-transmission data utilizing hardware queue administrative mechanism to specify the first hardware retransmission queue and transmits.
Further, above-mentioned base station also has following feature: described transport module includes:
Scheduling unit, for scheduled transmission block；
Mounting unit, is articulated in the second hardware retransmission queue for obtaining the corresponding descriptor retransmitting data from the first hardware retransmission queue according to the size of described transmission block；
Transmission unit, for being filled in described transmission block transmission by the re-transmission data of the second hardware retransmission queue instruction.
Further, above-mentioned base station also has following feature: described transmission unit includes:
Judgment sub-unit, for judging whether the length of the retransmission node in the second hardware retransmission queue is less than the residue length of described transmission block successively；
First fills unit, in the case of judging to be in judgment sub-unit, directly the re-transmission data in described retransmission node is filled into described transmission block；
Second fills unit, for judgment sub-unit judge no in the case of, intercept from this retransmission node and retransmit data and fill completely described transmission block.
Further, above-mentioned base station also has following feature: described transport module also includes:
Judging unit, is used for judging that whether described transmission block is less than threshold value；
Described mounting unit, being additionally operable in the case of described judging unit judges that described transmission block is less than threshold value, the descriptor obtaining corresponding retransmission node according to the size of minimal hardware retransmission queue from the first hardware retransmission queue is articulated in minimal hardware retransmission queue；
Described transmission unit, is additionally operable to send the re-transmission data of described minimal hardware retransmission queue instruction.
Further, above-mentioned base station also has a following feature:
Described memory module, it is additionally operable to during the descriptor of storage re-transmission data, preserve the corresponding relation of the queue identity of the first hardware retransmission queue and the descriptor of described re-transmission data, preserve descriptor linking relationship in the first hardware retransmission queue of described re-transmission data, preserve the corresponding relation of leading address that described re-transmission data store in internal memory and the descriptor of described re-transmission data, preserve described re-transmission data linking relationship of the address of burst storage in internal memory, and preserve the burst descriptor of described re-transmission data and the corresponding relation of burst storage address.
Further, above-mentioned base station also has following feature: described base station is femto cell or milli femto cell.
To sum up, the present invention provides a kind of method and base station processing and retransmitting data, can reduce processor resource significantly and constantly be taken by small number of service, can improve the disposal ability of single-chip, reducing product cost, the application of the present invention can reduce chip size and improve disposal ability simultaneously.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the base station of the embodiment of the present invention；
Fig. 2 a and Fig. 2 b is the schematic diagram that the hardware queue manager administration that the present embodiment provides retransmits data；
Fig. 3 is a kind of flow chart processing the method retransmitting data of the present invention;
Fig. 4 is the flow chart of the base station re-transmission message of the embodiment of the present invention；
Fig. 5 is the flow chart that rlc protocol layer structure retransmits data.
Detailed description of the invention
The present invention, in order to improve the retransmission process efficiency under AM pattern, utilizes hardware queue manager to reduce the implementation complexity of flow process in processing procedure.In view of in the case of supporting very multi-service quantity, and the realization of hardware queue manager needs to complete inside processor, hardware resource occupancy can be very big, so present invention is mainly applied to PICO(femto cell) and FEMTO(milli femto cell) in.
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiments of the invention are described in detail.It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can mutual combination in any.
As it is shown in figure 1, the base station that the embodiment of the present invention provides includes:
Application module, retransmit the state report of message for receiving structure after, the first hardware retransmission queue is applied in the instruction reported according to this state；
Memory module, for needing the descriptor of the data retransmitted to be stored in the first hardware retransmission queue the report instruction of described state；
Transport module, recombinates for the re-transmission data utilizing hardware queue administrative mechanism to specify the first hardware retransmission queue and transmits.
The present invention need not move work by what cpu instruction completed data in EMS memory, when retransmission operation frequent operation, CPU and rambus will not be caused the heaviest load.
In a preferred embodiment, described transport module includes:
Scheduling unit, for scheduled transmission block；
Mounting unit, is articulated in the second hardware retransmission queue for obtaining the corresponding descriptor retransmitting data from the first hardware retransmission queue according to the size of described transmission block；
Transmission unit, for being filled in described transmission block transmission by the re-transmission data of the second hardware retransmission queue instruction.
Wherein, described transmission unit may further include:
Judgment sub-unit, for judging whether the length of the retransmission node in the second hardware retransmission queue is less than the residue length of described transmission block successively；
First fills unit, in the case of judging to be in judgment sub-unit, directly the re-transmission data in described retransmission node is filled into described transmission block；
Second fills unit, for judgment sub-unit judge no in the case of, intercept from this retransmission node and retransmit data and fill completely described transmission block.
In a preferred embodiment, described transport module can also include:
Judging unit, is used for judging that whether described transmission block is less than threshold value；
Described mounting unit, being additionally operable in the case of described judging unit judges that described transmission block is less than threshold value, the descriptor obtaining corresponding retransmission node according to the size of minimal hardware retransmission queue from the first hardware retransmission queue is articulated in minimal hardware retransmission queue；
Described transmission unit, is additionally operable to send the re-transmission data of described minimal hardware retransmission queue instruction.
So, base station is in the case of bad channel quality, it is also possible to ensure persistently carrying out of business, can also improve the susceptibility of user simultaneously.
Wherein, it is additionally operable to during the descriptor of described memory module storage re-transmission data, preserve the corresponding relation of the queue identity of the first hardware retransmission queue and the descriptor of described re-transmission data, preserve descriptor linking relationship in the first hardware retransmission queue of described re-transmission data, preserve the corresponding relation of leading address that described re-transmission data store in internal memory and the descriptor of described re-transmission data, preserve described re-transmission data linking relationship of the address of burst storage in internal memory, and preserve the burst descriptor of described re-transmission data and the corresponding relation of burst storage address.
Fig. 2 is the schematic diagram that the hardware queue manager administration that the present embodiment provides retransmits message, as shown in Figure 2, P1 to P4 constitutes a retransmission queue, P1, P2, P3, P4 are a PDU(ProtocolDataUnit respectively, protocol Data Unit), according to different user, P1 and P3 is a queue, P2 and P4 is a queue.
The right half of Fig. 2 (a), represent and retransmit data storage mode in internal memory, according to the size of unit storage unit, each PDU is carried out burst storage, such as, P1 is divided into P1_Cell_1, P1_Cell_2, P1_Cell_3, then being respectively stored in different memory element, such P1_Cell_1, P1_Cell_2, P1_Cell_3 are respectively Add-1, Add-2, Add-3 at each access unit address.
In the present embodiment, need to configure 5 RAM(RandomAccessMemory, random access memory) 1 list of storage respectively, in order to preserve retransmission information, as shown in Fig. 2 (b):
Queue identity table, as shown in Fig. 2 (b), a line represents a queue, the most corresponding queue number, puts in the same row by the group character of same queue, such as, as shown in Figure 2 (a) shows, P1 and P3 is divided into a team, then a queue number is corresponding with the packet descriptor of same queue, i.e. Q-1 correspondence P1 and mark P-1 of P3 and P-3
Queue linked list, for describing the linking relationship between the packet representated by each packet descriptor, such as, is P-3 after P-1, is P-4 after P-2.
Group character table, for describing the corresponding relation of packet descriptor and the leading address of each packet, such as, P-1 with Add-1 is corresponding, P-2 with Add-6 is corresponding, P-3 with Add-11 is corresponding；
Packet chained list, for describing the linking relationship between each burst address, such as, Add-1 links Add-2, Add-2 and links Add-3.
Tables of data, for describing the corresponding relation of each burst address and each packet fragmentation descriptor.
The present invention carry out caching and queue management to realize principle as follows:
Join the team process
1, read idling-resource, obtain idle leading address；
If hardware store unit has idling-resource, then can be used to storage and retransmit data.
2, utilize free address to write " tables of data ", update " packet chained list " with this address simultaneously；
3, according to number of packet, (2) are repeated repeatedly；
4, according to the queue number belonging to this packet, read " queue identity table ", obtain other the packet descriptor in this queue successively；
5, utilizing the packet descriptor of non-head of the queue, first burst address correspondence being respectively grouped updates " group character table " and " queue linked list "；
6, queue identity table is updated.
Here as a example by queue Q_1:
First, obtain idle leading address Add-1, Add-1 is utilized to write burst P1_Cell_1 in tables of data, successively by packet fragmentation descriptor write tables of data, the corresponding relation of all queue identity and packet descriptor is preserved in queue identity table, in queue linked list, store the annexation that each packet descriptor is relevant, group character table stores the corresponding relation of packet descriptor and corresponding leading address；Being indexed setting up packet fragmentation address annexation in packet chained list, preserve in tables of data is the address of all of pending data, is completed the acquisition of authentic data by these addresses.
Dequeue process includes below step:
1, according to scheduling queue number, read " queue identity table ", obtain queue heads address mark (i.e. packet descriptor)；
2, utilize queue heads address to identify, read " group character table " and obtain corresponding memory unit address；
3, utilize queue heads address to identify, read " queue linked list ", update queue heads (writing " queue identity table ")；
4, read " tables of data " with memory unit address, read first burst；
5, read " packet chained list " with memory unit address, and then read other bursts；
6, often read a burst, update idle chained list (writing packet chained list).
Fig. 3 is a kind of flow chart processing the method retransmitting data of the present invention, as it is shown on figure 3, include below step:
After S10, base station receive the state report that structure retransmits message, the first hardware queue is applied in the instruction reported according to this state；
S20, by described state report instruction need retransmit data descriptor be stored in the first hardware retransmission queue;
The re-transmission data that S30, base station utilize hardware queue administrative mechanism to specify the first hardware retransmission queue are recombinated and transmit.
Wherein, in step S30, base station recombinates re-transmission data and transmission is embodied as:
Described base station scheduling transmission block, size according to described transmission block obtains the corresponding descriptor retransmitting data from the first hardware retransmission queue and is articulated in the second hardware retransmission queue, then the re-transmission data of the second hardware retransmission queue instruction is filled in described transmission block transmission.
In another preferred embodiment, if described base station judges that described transmission block is less than threshold value, then from the first hardware retransmission queue, obtain the descriptor of corresponding retransmission node according to the size of minimal hardware retransmission queue to be articulated in minimal hardware retransmission queue, then send the re-transmission data of described minimal hardware retransmission queue instruction.
So, base station is in the case of bad channel quality, it is also possible to ensure persistently carrying out of business, can also improve the susceptibility of user simultaneously.
The present invention is on the basis of existing Software Realization Technique, base station receiving state report structure re-transmission message when every time, first determine whether the re-transmission size of data that this nack message received comprises, according to retransmitting size of data application corresponding retransmission queue node, and according to retransmitting the difference of size of data, retransmission queue is articulated in different hardware queues by application.
Can reduce processor resource significantly according to the present invention constantly to be taken by small number of service, can improve the disposal ability of single-chip, reduce product cost, the application of the present invention can reduce chip size and improve disposal ability simultaneously.
Although the RLC transmitting terminal entity under AM pattern allows to retransmit, but is in the consideration to actual application scenarios, it is unpractical for unrestrictedly retransmitting.Assume, rlc layer receives the scheduling result of MAC layer, TB(TransportBlock, transmission block) size be 8192(BYTE, byte), rlc layer is according to the size groups PDU of 8192 sizes of TB, and is sent to opposite end, remembers that this PDU is PDU_1, if this TB loses in transmitting procedure, now channel quality is deteriorated (TB i.e. dispatched is less than the threshold value preset), and transmitting terminal can be chosen suitable retransmission queue according to current scheduling result and complete the mounting of data block hardware queue, and transmits.If channel quality reduces further in transmitting procedure, if less than pre-set bandwidths, hereafter, the TB size of the scheduling result that MAC layer is given every time all can be dispatched according to the size of minimum memory unit (such as, 128kByte), say, that the selection of retransmission queue only one, the queue that re-transmission message is split as 128 bytes completes to retransmit, if number of retransmissions is set to 8 times, if re-transmission has not been completed, reconstruction operation flow can be triggered.
Design hardware retransmission queue completes to retransmit preservation and the management of message, and the corresponding different size of hardware retransmission queue of different queued packets, the size of packet can be the most according to practical situation.
With the re-transmission data configuration of wireless chain control layer in LTE system, the present invention is described in further detail as an example below.
First, hardware queue resource is estimated, retains retransmission information and can occupy certain ram in slice resource, can be 1.5 the DRB(dedicated service carryings of every user's mean allocation) use AM pattern, sending window is 512(byte), 64bit depositor can be used to complete the description of retransmission queue.
Assume:
(1) RLC sending side have sent the PDU of 3 8192 sizes, is designated as PDU_1, PDU_2 and PDU3, because link reason, this PDU_1 loses in transmitting procedure, and the reception side of RLC does not receives this PDU_1.
(2) assume that maximum retransmission is configured to 8.
As shown in Figure 4, base station retransmits specifically comprising the following steps that of message
Step 101, base station receives the state report Status_1 that opposite end sends, resolves state report Status_1, obtains Nack information, and described Nack information instruction PDU_1 entirety does not receives.
Rlc protocol layer, according to the re-transmission size of data of state report instruction, obtains the resource of hardware retransmission queue, and retransmission queue is articulated in different types of hardware retransmission queue by application.
Step 102, because last time does not receives nack message, the nack message of PDU_1 is preserved by base station, according to nack message instruction using PDU_1 entirety as retransmit PDU, and store PDU_1 according to PDU_1 size application corresponding hardware retransmission queue node, and queue descriptor corresponding for this PDU_1 is linked into retransmission queue TYPE1(Class1) in the process of joining the team of message (retransmit as described above), and the number of retransmissions (Pdu1RetransCount) of this PDU_1 is added 1；
Typically, base station is just provided with the hardware queue of several TYPE during dispatching from the factory, the corresponding different size of unit storage unit of the hardware retransmission queue of every kind of TYPE.The division of hardware retransmission queue type mainly can be from the standpoint of two:
From the standpoint of operator promotes mainly business, such as, if operator promotes mainly online film in this stage, take into account download function, the message size that so these business are main is all 1400 bytes, so must there be 1400 this TYPE of byte hardware retransmission queue is set when, can carry out to take into account other business simultaneously, the most just at the hardware retransmission queue designing some such as 512 bytes, finally can redesign a minimum retransmission queue such as 64 byte, so hardware retransmission queue of the design of this system just has unit storage unit size to be 1400 bytes, 512 bytes, 64 byte three kinds TYPE.
From the point of view of user, downloading if the daily use of user oneself is exactly mail, fax waits the business that some messages are the least, then just can arrange the hardware queue of several smaller TYPE of unit amount of storage during dispatching from the factory to meet the needs of user.
Step 103, the rlc layer of base station receives the scheduling result of MAC layer, such as, the size of TB is 4000BYTE, base station is articulated to the re-transmission data of intercepting 1-4000BYTE in PDU_1 in TYPE2 retransmission queue, follow-up being joined in TB block by software participation scheduling sends (retransmitting the dequeue process of message as described above), and idiographic flow is as shown in Figure 5.
Step 104, base station receives the state report Status_2 that opposite end sends, resolves state report Status_2, obtains Nack information, and instruction 4001-8192 byte does not receives.
Step 105, this Nack information and the Nack information of last time are compared in base station, finding that the partial-length that retransmits of this Nack information instruction is less than the re-transmission partial-length that the Nack information of last time indicates, the 4001-8192 data division structure indicated according to this Nack information retransmits PDU；
Step 106, base station receives the scheduling result of MAC, and such as, the size of TB is 5000, the byte retransmitting the 4001-8192 of data is joined in TB block and sends；
But, because link reason, this TB block is lost in transmitting procedure, and RLC receives side and do not receives, then
Step 107, base station receives the state report Status_3 that opposite end sends, resolves state report Status_3, obtains Nack information, and instruction 4001-8192 byte does not receives.
Step 108, this Nack information and the Nack information of last time are compared in base station, if find this Nack information instruction retransmits the partial-length re-transmission partial-length equal to the Nack information instruction of last time, first number of retransmissions (Pdu1RetransCount) is added 1 operation, judge that Pdu1RetransCount is 2, less than 3, not initiating to rebuild, the 4001-8192 data division structure indicated according to this Nack information retransmits PDU.
Step 109, base station receives the scheduling result of MAC, and such as, the size of TB is 5000, and the byte retransmitting the 4001-8192 of data is joined in TB block and sends by RLC；
Step 110, base station receives the state report Status_4 that opposite end sends, resolves state report Status_4, find that PDU_1 receives the most completely, then delete the Nack information corresponding for PDU_1 of preservation.
During retransmitting message, if base station judges that channel quality will need the data retransmitted repeatedly to retransmit, to ensure that business can persistently be carried out less than predeterminated level, the then transmission block dispatching minimum.
Fig. 5 is the flow chart that rlc protocol layer structure retransmits data, as it can be seen, include below step:
Step 201, rlc protocol layer gets the scheduling result of MAC layer, the i.e. length of this transmissible TB；
Step 202, rlc protocol layer, according to the hardware resource of state report acquisition retransmission queue, obtains a retransmission node from retransmission queue；
Step 203, rlc protocol layer judges that the TB of scheduling, whether less than threshold value, if so, turns to step 204, otherwise, turns to step 205；
Step 204, the descriptor of retransmission node is articulated in minimal hardware retransmission queue by rlc protocol layer, then sends the re-transmission data of described minimal hardware retransmission queue instruction；
Step 205, rlc protocol layer judges whether remaining TB length is more than the length of the retransmission node got, the most then turn to step 206, otherwise turn to step 207；
Step 206, the data of retransmission node are directly filled in TB block, are then back to step 202 by rlc protocol layer；
Step 207, rlc protocol layer splits retransmission node, fills full by residue TB block, then sends.
One of ordinary skill in the art will appreciate that all or part of step in said method can instruct related hardware by program and complete, described program can be stored in computer-readable recording medium, such as read only memory, disk or CD etc..Alternatively, all or part of step of above-described embodiment can also use one or more integrated circuit to realize.Correspondingly, each module/unit in above-described embodiment can realize to use the form of hardware, it would however also be possible to employ the form of software function module realizes.The present invention is not restricted to the combination of the hardware and software of any particular form.
These are only the preferred embodiments of the present invention; certainly; the present invention also can have other various embodiments; in the case of without departing substantially from present invention spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and deformation according to the present invention, but these change accordingly and deform the protection domain that all should belong to appended claims of the invention.
Claims (9)
1. process the method retransmitting data, including:
After base station receives the state report that structure retransmits message, the first hardware retransmission queue is applied in the instruction reported according to this state；
The descriptor of the data retransmitted is needed to be stored in the first hardware retransmission queue the report instruction of described state；
The re-transmission data utilizing hardware queue administrative mechanism to specify the first hardware retransmission queue are recombinated and transmit；
The report instruction of described state is needed the descriptor of the data retransmitted also to include during being stored in the first hardware retransmission queue by described base station:
Preserve the corresponding relation of the queue identity of the first hardware retransmission queue and the descriptor of described re-transmission data, preserve descriptor linking relationship in the first hardware retransmission queue of described re-transmission data, preserve the corresponding relation of leading address that described re-transmission data store in internal memory and the descriptor of described re-transmission data, preserve described re-transmission data linking relationship of the address of burst storage in internal memory, and preserve the burst descriptor of described re-transmission data and the corresponding relation of burst storage address.
2. the method for claim 1, it is characterised in that: described base station utilizes hardware queue administrative mechanism to recombinate the re-transmission data that the first hardware retransmission queue is specified and the step transmitted includes:
Described base station scheduling transmission block, size according to described transmission block obtains the corresponding descriptor retransmitting data from the first hardware retransmission queue and is articulated in the second hardware retransmission queue, then the re-transmission data of the second hardware retransmission queue instruction is filled in described transmission block transmission.
3. method as claimed in claim 2, it is characterised in that: after described base station scheduling transmission block, also include:
If described base station judges that described transmission block is less than threshold value, then from the first hardware retransmission queue, obtain the descriptor of corresponding retransmission node according to the size of minimal hardware retransmission queue to be articulated in minimal hardware retransmission queue, then send the re-transmission data of described minimal hardware retransmission queue instruction.
4. method as claimed in claim 2, it is characterised in that: the step that the re-transmission data that the second hardware retransmission queue indicates are filled into described transmission block is included by described base station:
Described base station judges whether the length of the retransmission node in the second hardware retransmission queue is less than the residue length of described transmission block successively, the most directly the re-transmission data of described retransmission node are filled into described transmission block；Otherwise, from this retransmission node, intercept re-transmission data and fill full described transmission block.
5. a base station, including:
Application module, retransmit the state report of message for receiving structure after, the first hardware retransmission queue is applied in the instruction reported according to this state；
Memory module, for needing the descriptor of the data retransmitted to be stored in the first hardware retransmission queue the report instruction of described state；
Transport module, recombinates for the re-transmission data utilizing hardware queue administrative mechanism to specify the first hardware retransmission queue and transmits；
Described memory module, it is additionally operable to during the descriptor of storage re-transmission data, preserve the corresponding relation of the queue identity of the first hardware retransmission queue and the descriptor of described re-transmission data, preserve descriptor linking relationship in the first hardware retransmission queue of described re-transmission data, preserve the corresponding relation of leading address that described re-transmission data store in internal memory and the descriptor of described re-transmission data, preserve described re-transmission data linking relationship of the address of burst storage in internal memory, and preserve the burst descriptor of described re-transmission data and the corresponding relation of burst storage address.
6. base station as claimed in claim 5, it is characterised in that: described transport module includes:
Scheduling unit, for scheduled transmission block；
Mounting unit, is articulated in the second hardware retransmission queue for obtaining the corresponding descriptor retransmitting data from the first hardware retransmission queue according to the size of described transmission block；
Transmission unit, for being filled in described transmission block transmission by the re-transmission data of the second hardware retransmission queue instruction.
7. base station as claimed in claim 6, it is characterised in that: described transmission unit includes:
Judgment sub-unit, for judging whether the length of the retransmission node in the second hardware retransmission queue is less than the residue length of described transmission block successively；
First fills unit, in the case of judging to be in judgment sub-unit, directly the re-transmission data in described retransmission node is filled into described transmission block；
Second fills unit, for judgment sub-unit judge no in the case of, intercept from this retransmission node and retransmit data and fill completely described transmission block.
8. base station as claimed in claim 6, it is characterised in that: described transport module also includes:
Judging unit, is used for judging that whether described transmission block is less than threshold value；
Described mounting unit, being additionally operable in the case of described judging unit judges that described transmission block is less than threshold value, the descriptor obtaining corresponding retransmission node according to the size of minimal hardware retransmission queue from the first hardware retransmission queue is articulated in minimal hardware retransmission queue；
Described transmission unit, is additionally operable to send the re-transmission data of described minimal hardware retransmission queue instruction.
9. the base station as described in any one of claim 5-8, it is characterised in that:
Described base station is femto cell or milli femto cell.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110129163.6A CN102790667B (en) | 2011-05-18 | 2011-05-18 | A kind of method processing re-transmission data and base station |
| PCT/CN2011/079678 WO2012155419A1 (en) | 2011-05-18 | 2011-09-15 | Method and base station for processing retransmission data |
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| CN201110129163.6A CN102790667B (en) | 2011-05-18 | 2011-05-18 | A kind of method processing re-transmission data and base station |
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| CN108429607B (en) * | 2017-02-14 | 2021-05-14 | 普天信息技术有限公司 | HARQ retransmission processing method in communication system |
| CN114079544B (en) * | 2020-08-18 | 2023-04-14 | 大唐移动通信设备有限公司 | RLC data retransmission method and device |
| CN115913473B (en) * | 2023-02-21 | 2023-05-12 | 深圳云豹智能有限公司 | Data selective retransmission method and system, storage medium and electronic equipment thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101018110A (en) * | 2006-02-10 | 2007-08-15 | 中兴通讯股份有限公司 | A retransfer scheduling method of the HARQ protocol based on the retransfer time |
| CN101277175A (en) * | 2007-03-30 | 2008-10-01 | 国际商业机器公司 | Method and device for improving conversation starting protocol server performance |
| CN101931516A (en) * | 2009-06-25 | 2010-12-29 | 中兴通讯股份有限公司 | Quick-retransmission method and method in wireless chain control layer determination mode |
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| CN100533410C (en) * | 2001-08-27 | 2009-08-26 | 英特尔公司 | Software controlled content addressable memory in a general purpose execution datapath |
| US8463955B2 (en) * | 2009-01-19 | 2013-06-11 | Ikanos Communications, Inc. | Transport frame structure for retransmission in DSL |
| CN101765194B (en) * | 2009-12-28 | 2014-01-01 | 中兴通讯股份有限公司 | Method and system for transmitting data frame as well as base station subsystem device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101018110A (en) * | 2006-02-10 | 2007-08-15 | 中兴通讯股份有限公司 | A retransfer scheduling method of the HARQ protocol based on the retransfer time |
| CN101277175A (en) * | 2007-03-30 | 2008-10-01 | 国际商业机器公司 | Method and device for improving conversation starting protocol server performance |
| CN101931516A (en) * | 2009-06-25 | 2010-12-29 | 中兴通讯股份有限公司 | Quick-retransmission method and method in wireless chain control layer determination mode |
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| WO2012155419A1 (en) | 2012-11-22 |
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