CN105191260A - Data processing method and apparatus - Google Patents

Data processing method and apparatus Download PDF

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Publication number
CN105191260A
CN105191260A CN201480000425.0A CN201480000425A CN105191260A CN 105191260 A CN105191260 A CN 105191260A CN 201480000425 A CN201480000425 A CN 201480000425A CN 105191260 A CN105191260 A CN 105191260A
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bit string
linear combination
side apparatus
combination section
rlc pdu
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CN201480000425.0A
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CN105191260B (en
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鲁振伟
郭小龙
张力学
朱松
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems

Abstract

The embodiment of the present invention provides a data processing method and apparatus, the method comprising: dividing a bit string comprising complete RLC SDUs (Radio Link Control Service Data Unit) to obtain column vectors; computing the column vectors, and n m-dimensional vectors in a coefficient vector table derived from the values of parameters L and m characterizing the size of the bit string, so as to obtain n linear combination segments; and adding outer headers to the n linear combination segments to form an RLC PDU (Radio Link Control Protocol Data Unit). During this process, data headers of the data PDU sent on a sending side are simplified by canceling segmentation and re-segmentation mechanisms on the sending side, thereby reducing the overhead of the data headers and achieving the purpose of improving data transmission efficiency.

Description

Data processing method and apparatus
Data processing method and engineering device technique field
The present invention relates to the communication technology, more particularly to a kind of data processing method and device.Background technology
Long Term Evolution（Long Term Evolution, LTE) in system, wireless spread-spectrum technology（Radio Link Control, RLC) layer has Three models：Transparent mode（Transparent Mode, TM), non-answer-mode (Unacknowledged Mode, UM) and answer-mode (Acknowledged Mode, AM)
When rlc layer is configured to AM patterns, rlc layer by segmentation, again segmentation etc. mechanism to protocol Data Unit（Protocol Data Unit, PDU) handled and sent.Specifically, in sending side, rlc layer is by PDCP（Packet Data Convergence Protocol, PDCP) the PDCP PDU that send of layer) as RLC SDU, each RLC SDU are sequentially concatenated and are assembled into data field, it is first-born to data field interpolation data into RLC PDU.During being somebody's turn to do, if the remaining size of data field is not enough to place a RLC SDU, RLC SDU are segmented, so that a RLC SDU part is put into data field.Then, sending side often sends a RLC PDU, is required in data head comprising a sequence number（Sequence Number, SN), when often sending a new RLC PDU, SN will add 1, and be segmented for each RLC SDU or RLC SDU（Except last）, all comprising a Length Indication in data head（Length Indicator, LI), for indicating that RLC SDU or RLC SDU are segmented the length in PDU.Receiving side, according to feedback mechanism, the state report for sending the SN comprising the RLC PDU for needing to retransmit is concentrated to sending side after some RLC PDU are received.Sending side is received after the state report, the RLC PDU for needing to retransmit are retransmitted in appropriate transmission opportunity, when the size for sending data is not enough to put into a RLC PDU, RLC PDU can also be again segmented, it is divided into smaller section, becomes a RLC PDU segmentation.Corresponding to this heavy fragmentation scheme, receiving side can also require that sending side retransmits a certain RLC PDU segmentations in state report, so also need to include starting and termination locations of the segmentation in former complete RLC PDU in data head.Receiving side can also be again segmented when retransmitting RLC PDU segmentations, form new RLC PDU segmentations again according to size of data is sent to RLC PDU segmentations. However, it is found by the inventors that, above-mentioned segmentation, the mechanism being segmented again are comparatively laborious, need to carry much information in PDU data head, increase the expense of data head, cause data transmission efficiency low.The content of the invention
The embodiment of the present invention provides a kind of data processing method and device, realizes the purpose for improving data transmission efficiency.
One side, the embodiment of the present invention provides a kind of data processing method, and this method includes：According to the size of default bit string, take out at least one wireless link control layer service data cell RLC SDU successively from caching, it regard each RLC SDU as data field, to the data domain construction internal layer head, each RLC SDU and the internal layer head are filled into the bit string, if the remaining size of the bit string is not enough to fill a RLC SDU, filling bit then is supplemented to the bit string, the size of the bit string is LXm, wherein, described L, m are positive integer；
The bit string is sequentially divided into m length to be uniformly segmented, mX l column vector is obtained, wherein, the length is L；
N m dimension row vector is taken out from coefficient vector table, row vector and the column vector are tieed up according to the n m, obtain n linear combination section, wherein, one nX l of each linear combination section composition column vector, the coefficient vector table is determined that the n is positive integer by L and m value；
N linear combination section is added outer layer head to construct protocol data unit of wireless links control layer
It is described that n linear combination section is added outer layer head to construct RLC PDU in the possible implementation of in the first aspect the first, including：
If the size after the n linear combination section addition outer layer head is not more than the transmission size of data of MAC layers of instruction of Media access contorl, n linear combination section is added the outer layer head to constitute a RLC PDUo
It is described that n linear combination section is added outer layer head to construct protocol data unit of wireless links control layer RLC PDU in second of possible implementation in the first aspect, including：
If the size after the n linear combination section addition outer layer head is more than the transmission size of data that Media access contorl MAC layer is indicated, a linear combination section is taken out from n linear combination section, to the nxIndividual linear combination section adds outer layer head to constitute RLC PDUo
With reference to the on one side, the first or second of possible implementation of one side, the In the third possible implementation of one side, it is described to n linear combination section addition outer layer head with after constructing protocol data unit of wireless links control layer RLC PDU, in addition to：
At least one described RLC PDU is sent to side apparatus is received, sequence number SN and vector index are included in each RLC PDU outer layer head, so that the reception side apparatus is for each bit string, judged whether to be received entirely the bit string according to the vector index, wherein, each linear combination section obtained by same bit string has identical SN.
It is described to receiving after side apparatus sends at least one described RLC PDU in the 4th kind of possible implementation in the first aspect with reference to the third possible implementation of one side, in addition to：Receive the number for the linear combination section that the state report for receiving side apparatus feedback, SN, the SN for the bit string not received completely of the bit string that the state report is received completely including the reception side apparatus, and the bit string not received completely are also needed to.
With reference to the 4th kind of possible implementation of one side, in the 5th kind of possible implementation in the first aspect, it is described receive the state report for receiving side apparatus feedback after, in addition to：According to the state report, the linear combination section that the bit string not received completely described in structure is also needed to；The linear combination section that the bit string not received completely described in structure is also needed to be built into corresponding RLC combine the on one side, the first or second of possible implementation of one side, in the 6th kind of possible implementation in the first aspect, each RLC PDU outer layer head includes non-zero hop count m', the m'm, the m' do not include filling bit with the segmentation before the m'.
With reference to the on one side, the first or second of possible implementation of one side, in the 7th kind of possible implementation in the first aspect, it is described to n linear combination section addition outer layer head with after constructing protocol data unit of wireless links control layer RLC PDU, in addition to：
At least one described RLC PDU is sent to side apparatus is received;
Judge whether the reception side apparatus can parse a complete bit string according at least one the described RLC PDU received；
If judging, the reception side apparatus can parse a complete bit string, send and obtain PLC PDU by next bit string.
With reference to the 7th kind of possible implementation of one side, in the 8th kind of possible implementation in the first aspect, it is described judge whether the reception side apparatus can parse a complete bit string according at least one the described RLC PDU received before, in addition to： Receive the state report for receiving side apparatus feedback, the state report carries whether the reception side apparatus can parse the information of a complete bit string according at least one the described RLC PDU received, and the state report includes data Number domains.
With reference to the on one side, the first or second of possible implementation of one side, in the 9th kind of possible implementation in the first aspect, it is described to n linear combination section addition outer layer head with after constructing protocol data unit of wireless links control layer RLC PDU, in addition to：
Poll bit is not included at least one described RLC PDU, each RLC PDU outer layer head to receiving side apparatus and sending；
Receive the state report for receiving side apparatus feedback.
It is described to receive the state report for receiving side apparatus feedback in the tenth kind of possible implementation in the first aspect with reference to the 9th kind of possible implementation of one side, including：
Receive the state report for not carrying sequence number SN for receiving side apparatus feedback；Or, receive the state report for carrying sequence number SN for receiving side apparatus feedback.
With reference to the on one side, one side the first to any possible implementation in the tenth kind, in the tenth a kind of possible implementation in the first aspect, the size according to default bit string, take out at least one wireless link control layer service data cell RLC SDU successively from caching, before each RLC SDU constructions internal layer head, in addition to：
Configuration characterizes parameter L and m, the coefficient vector table of the bit string size；
The parameter L and m is sent to user equipment, or, the parameter L and m for characterizing the bit string size, the coefficient vector table are sent to the user equipment.
With reference to the on one side, one side the first to any possible implementation in the tenth kind, in the 12nd kind of possible implementation in the first aspect, the size according to default bit string, take out at least one wireless link control layer service data cell RLC SDU successively from caching, before each RLC SDU constructions internal layer head, in addition to：
The parameter L and m for the sign bit string size that base station is sent are received, according to the parameter L and m, the coefficient vector table is determined, or,
Receive the parameter L and m for the sign bit string size that base station is sent, the coefficient vector table.Second aspect, the embodiment of the present invention provides a kind of data processing equipment, including：
Module is filled, for the size according to default bit string, at least one wireless link control layer service data cell RLC SDU are taken out successively from caching, it is right using each RLC SDU as data field The data domain construction internal layer head, each RLC SDU and the internal layer head are filled into the bit string, if the remaining size of bit string is not enough to fill a RLC SDU, filling bit then is supplemented to the bit string, the size of the bit string is LX m, wherein, described L, m are positive integer；
Division module, the bit string for the filling module filling to be obtained sequentially is divided into m length and is uniformly segmented, and obtains mX l column vector, wherein, the length is L；
Linear combination section generation module, for taking out n m dimension row vector from coefficient vector table, the column vector that row vector is obtained with the division module is tieed up according to the n m, obtain n linear combination section, wherein, one n X l of each linear combination section composition column vector, the coefficient vector table is determined that the n is positive integer by L and m value；
Add module, adds outer layer head to construct protocol data unit of wireless links control layer RLC PDU for the n linear combination section to linear combination section generation module generation.
In the possible implementation of in second aspect the first, the add module, if being not more than the transmission size of data of Media access contorl MAC layer instruction specifically for the size after n linear combination section addition outer layer head, n linear combination section is added the outer layer head to constitute a RLC PDU.
In second of possible implementation in second aspect, the add module, if being more than the transmission size of data that Media access contorl MAC layer is indicated specifically for the size after n linear combination section addition outer layer head, a linear combination section is then taken out from n linear combination section, to the nxIndividual linear combination section adds outer layer head to constitute RLC PDU.
With reference to the first or second of possible implementation of second aspect, second aspect, in the third possible implementation in second aspect, described device also includes：
Sending module, for sending at least one described RLC PDU to reception side apparatus, sequence number SN and vector index are included in each RLC PDU outer layer head, so that the reception side apparatus is for each bit string, judged whether to be received entirely the bit string according to the vector index, wherein, each linear combination section obtained by same bit string has identical SN.
With reference to the third possible implementation of second aspect, in the 4th kind of possible implementation in second aspect, described device also includes：
Receiving module, state report for receiving the reception side apparatus feedback, the state report includes SN, the SN for the bit string not received completely of bit string that the reception side apparatus is received completely, and the number of linear combination section that the bit string not received completely is also needed to. With reference to the 4th kind of possible implementation of second aspect, in the 5th kind of possible implementation in second aspect, described device also includes：
Processing module, for according to the state report, building the linear combination section that the bit string not received completely is also needed to；The linear combination section that the bit string not received completely described in structure is also needed to is built into corresponding RLC PDU.
With reference to the first or second of possible implementation of second aspect, second aspect, in the 6th kind of possible implementation in second aspect, each RLC PDU outer layer head includes non-zero hop count m', the m'm, the m' do not include filling bit with the segmentation before the m'.
With reference to the first or second of possible implementation of second aspect, second aspect, in the 7th kind of possible implementation in second aspect, described device also includes：
Sending module, for sending at least one described RLC PDU to reception side apparatus;
Processing module, whether a complete bit string can be parsed according at least one the described RLC PDU received for the reception side apparatus, if judging, the reception side apparatus can parse a complete bit string, send and obtain PLC PDU by next bit string.
With reference to the 7th kind of possible implementation of second aspect, in the 8th kind of possible implementation in second aspect, described device also includes：
Receiving module, state report for receiving the reception side apparatus feedback, the state report carries whether the reception side apparatus can parse the information of a complete bit string according at least one the described RLC PDU received, and the state report includes data Number domains.
With reference to the first or second of possible implementation of second aspect, second aspect, in the 9th kind of possible implementation in second aspect, the sending module, it is additionally operable to send to reception side apparatus and does not include poll bit at least one described RLC PDU, each RLC PDU outer layer head；The receiving module, is additionally operable to receive the state report of the reception side apparatus feedback.
With reference to the 9th kind of possible implementation of second aspect, in the tenth kind of possible implementation in second aspect, the receiving module, specifically for receiving the state report for not carrying sequence number SN for receiving side apparatus feedback；Or, receive the state report for carrying sequence number SN for receiving side apparatus feedback.
With reference to second aspect, second aspect the first to any possible implementation in the tenth kind, in the tenth a kind of possible implementation in second aspect, described device also includes：
Module is prepared, parameter L and m, the coefficient vector table of the bit string size are characterized for configuring; The sending module, is additionally operable to send the parameter L and m to user equipment, or, the parameter L and m for characterizing the bit string size, the coefficient vector table are sent to the user equipment.
With reference to second aspect, second aspect the first to any possible implementation in the tenth kind, in the 12nd kind of possible implementation in second aspect, the receiving module, it is additionally operable to receive the parameter L and m of the sign bit string size that base station is sent, according to the parameter L and m, the coefficient vector table is determined, or, receive the parameter L and m for the sign bit string size that base station is sent, the coefficient vector table.
3rd aspect, the embodiment of the present invention provides a kind of data processing equipment, including：Processor and memory, the memory storage execute instruction, when the data processing equipment is run, communicated between the processor and the memory, execute instruction described in the computing device cause the data processing equipment perform as above the on one side, one side the first to any possible implementation in the 12nd kind.
The embodiment of the present invention provides a kind of data processing method and device, n m dimensional vector in the column vector obtained by the bit string division including complete RLC SDU and the coefficient vector table for worth going out according to the parameter L and m that characterize bit string size, which calculate, obtains n linear combination section, and n linear combination section is added outer layer head to constitute RLC PDU.During being somebody's turn to do, by cancelling segmentation and the weight fragmentation scheme of sending side, simplify the data head for the data PDU that sending side is sent, so as to reduce the expense of data head, reach the purpose for improving data transmission efficiency.Illustrate form schematic diagrams of the Fig. 1 for data PDU in the prior art；
The form schematic diagram that Fig. 2 is segmented for data PDU in the prior art；
Fig. 3 is the form schematic diagram for controlling PDU in the prior art；
Fig. 4 is the flow chart of data processing method embodiment one of the present invention；
The process schematic that Fig. 5 is construction RLC PDU in Fig. 4；
Fig. 6 is the form schematic diagram of internal layer head in data processing method embodiment one of the present invention；
Fig. 7 is the form schematic diagram of outer layer head in data processing method embodiment two of the present invention；
The form schematic diagram that Fig. 8 is control PDU in data processing method embodiment two of the present invention；Fig. 9 is the form schematic diagram of outer layer head in data processing method embodiment three of the present invention；
The form schematic diagram that Figure 10 is control PDU in data processing method example IV of the present invention； Figure 11 be data processing method embodiment five of the present invention in do not carry SN control PDU form schematic diagram；
The first form schematic diagram for the control PDU that Figure 12 A are carrying SN in data processing method embodiment five of the present invention；
The second form schematic diagram for the control PDU that Figure 12 B are carrying SN in data processing method embodiment five of the present invention；
Figure 13 is the structural representation of data processing equipment embodiment one of the present invention；
Figure 14 is the structural representation of data processing equipment embodiment two of the present invention；
Figure 15 is the structural representation of data processing equipment embodiment three of the present invention.Embodiment is to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.
In general, rlc layer PDU is divided to for two kinds, and one kind is data PDU ,-kind it is control PDU.In the prior art, receive side apparatus to send side apparatus send PDU, such as RLC PDU or RLC PDU segmentation be data PDU, and send side apparatus to receive side apparatus feedback state report for control PDU.Wherein, it is two relative concepts to send side apparatus with reception side apparatus, and such as user equipment sends data PDU to base station, when base station is to user equipment feedback control PDU, and user equipment is sends side apparatus, and base station is reception side apparatus；Conversely, base station sends data PDU to user equipment, when user equipment is to base station feedback control PDU, base station is sends side apparatus, and user equipment is to receive side apparatus.
Fig. 1 is the form schematic diagram of data PDU in the prior art, and Fig. 2 is the form schematic diagram of the segmentations of data PDU in the prior art, and Fig. 3 is the form schematic diagram for controlling PDU in the prior art.Table 1 is the attribute list of each domain implication in Fig. 1 ~ Fig. 3.
( Re- segmentation Flag)
P poll bits（Polling Bit) indicate whether sending side needs receiving side condition report feedback
FI framing informations (Framing Info) indicate that first and last SDU or SDU is segmented the beginning and end for whether having corresponded to a RLC SDU respectively in data PDU data domain
SN sequence numbers (Sequence Number) data PDU sequence number
The last segmentation markers of LSF（Whether Last PDU segmentations are the last of complete PDU segmentations
Segment Flag) segmentation
SO grading excursions（Segment Offset) PDU segmentations are inclined in former complete PDU data domain
E extended bits（Extension Bit) back whether also have an E domain and a LI domain
LI Length Indications（The byte number of SDU or SDU segmentations in Length data fields
Indicator)
CPT controls PDU types（Control controls PDU type
PDU Type)
NACK-S negative responses SN (Negative needs the sequence number N Acknowledgement SN of the PDU retransmitted or PDU segmentations)
SO start SO start（SOstart original position of the part retransmitted in former complete PDU data domain) is needed
SO end SO terminate（SOend end position of the part retransmitted in former complete PDU data domain) is needed
(whether Extension bit back also has NACK_SN to El extended bits 1
1 )
(whether Extension bit back also has a pair of SO start and SO end to E2 extended bits 2
2)
ACK-SN confirms SN, and (sequence number for the PDU that Acknowledgement need not be retransmitted at present is maximum
SN) one
With reference to Fig. 1, Fig. 2 and table 1, inventor has found：Under segmentation, weight fragmentation scheme, need to carry much information in data PDU data head, increase the expense of data head, cause data transmission efficiency low.This hair In bright embodiment, by cancelling segmentation and the weight fragmentation scheme of sending side, simplify the data that sending side is sent
PDU data head, so as to reduce the expense of head, reaches the purpose for improving data transmission efficiency.Specifically, reference can be made to Fig. 4.Fig. 4 is the flow chart of data processing method embodiment one of the present invention, and it comprises the following steps：101st, according to the size of default bit string, take out at least one wireless link control layer service data cell RLC SDU successively from caching, it regard each RLC SDU as data field, to the data domain construction internal layer head, each RLC SDU and the internal layer head are filled into the bit string, if the remaining size of bit string is not enough to fill a RLC SDU, filling bit then is supplemented to the bit string, the size of the bit string is LXm, wherein, L, m are positive integer.
Specifically, Fig. 5 is refer to, the process schematic that Fig. 5 is construction RLC PDU in Fig. 4.Fig. 5 is refer to, in sending side, side apparatus is sent and takes out at least one RLC SDU from caching successively, while those RLC SDU are constructed with internal layer head, internal layer head is used to indicate the boundary demarcation information between each RLC SDU length or RLC SDU.During being somebody's turn to do, following conditions are met when taking RLC SDU：
(1) each RLC SDU and internal layer the head size as much as possible that is filled in taken out is in the bit strings of LXm；
(2) RLC SDU as much as possible are taken out in turn.
According to condition（And condition 1)（2) understand, the process is to be filled in each RLC SDU of taking-up and internal layer head are as much as possible during size is the bit string of LXm, untill the remaining size of bit string is not enough to fill a RLC SDU.Now, if bit string also has remaining space, to remaining space filling bit, such as 0 bit is filled（Padding), consequently, it is possible to which that included in the bit string of LXm is all complete RLC SDU.Wherein, the form of internal layer head can be found in Fig. 6.Fig. 6 is the form schematic diagram of internal layer head in data processing method embodiment one of the present invention.The attribute of each domain implication can be found in table 2 in the form schematic diagram of internal layer head shown in Fig. 6, and table 2 is the attribute list in each domain in Fig. 6.
Table 2
All it is complete RLC SDU due to what is included in L X m bit string, in the absence of the situation of segmentation, therefore, segment information need not be indicated in table 2.
102nd, the bit string is sequentially divided into m length to be uniformly segmented, obtains mX l column vector, wherein, the length is L. After the bit string that length is L X m is obtained, in this step, L X m bit string is sequentially divided into one section per L, m sections are divided into altogether, isXl~xm, by thisXl~xmIndividual segmentation is recorded as mX l column vector as one group.
103rd, n m row dimensional vector is taken out from coefficient vector table, according to the column vector of the n m dimensional vectors and the mX l, obtain n linear combination section, wherein, one n X l of each linear combination section composition column vector, the coefficient vector table is determined that n is positive integer by L and m value.
In the present embodiment, m and n is the integer more than 1, and m n, coefficient vector table is calculated according to L and m value in advance to be stored in transmission side apparatus and reception side apparatus, for example, in this step, if transmission side apparatus is base station, then the parameter such as base station configuration L, m, coefficient vector table is calculated according to L, m；And send L and m value to user equipment；If transmission side apparatus is user equipment, user equipment receives L and m value of base station transmission etc., and according to L and m value design factor vector table；Or, base station can also send whole coefficient vector table to user equipment, and user equipment directly uses the coefficient vector table without calculating.
In coefficient vector table, one sequence number of each coefficient vector correspondence, one has M coefficient vector, is taken in order when use.Specifically, coefficient vector table can use following matrix（1) represent：
( 1 A 、
2 A
Λ Λ A A Λ
' M A
By matrix（1) understand, every a line first row is sequence number in the matrix, and back is coefficient vector, it is desirable to wherein appoint the m coefficient vector linear independence taken, the matrix's reversibility of those m coefficient vectors taken out compositions.
In this step, untapped n m dimensional vectors are taken out in turn from coefficient vector table, n m dimensional vector of taking-up and the column vector that is obtained in step 102 are calculated, obtain n linear combination section specifically, such as calculating formula（2) shown in：
It should be noted that because the size of bit string is L X m, base station need to only configure any two parameter among the size of bit string, L, m three, you can determine the 3rd parameter according to two known parameters.Therefore, base station is foretold at L, m sunset except configuring, and can also configure the size and L of bit string;Or, the size and m of bit string can also be configured, the parameter configured is then sent to user equipment. 104th, n linear combination section is added outer layer head to construct protocol data unit of wireless links control layer RLC PDU.
Calculated in the column vector for obtaining the bit string division including complete RLC SDU and n m dimensional vectors progress after obtaining n linear combination section, in this step, according to Media access contorl（Radio Link Control, MAC) transmission size of data that layer is indicated, send side apparatus and n linear combination section is added outer layer head to construct RLC PDU.
Optionally, if the size after n linear combination section addition outer layer head is not more than the transmission size of data of MAC layer instruction, n linear combination section is added outer layer head to constitute a RLC PDU.
Specifically, MAC layer informs the transmission opportunity of one transmission data of rlc layer and can send the size of data（In units of byte）It is less than or equal to send size of data if dividing obtained column vector by the bit string including complete RLC SDU and calculating the size obtained after n linear combination section addition outer layer head with n m dimensional vectors progress, the different linear combinations section calculated by same LX m bit strings only needs to send once, now, the n linear combination section is added outer layer head to constitute a RLC PDU.
Optionally, if the size after n linear combination section addition outer layer head is more than the transmission size of data of MAC layers of instruction of Media access contorl, a linear combination section is taken out from n linear combination section, to the nxIndividual linear combination section adds outer layer head to constitute RLC PDU.
Specifically, MAC layer informs the transmission opportunity of one transmission data of rlc layer and can send the size of data（In units of byte）If dividing obtained column vector by the bit string including complete RLC SDU and n m dimensional vectors progress calculating the size obtained after n linear combination section addition outer layer head and be more than transmission size of data, i.e., the different linear combinations calculated by same LXm bit strings section need to be divided into multiple transmission.Now, a linear combination section is taken out from the n linear combination section, this linear combination section is added outer layer head to constitute RLC PDU.For example, refer to Fig. 5, take out for the first timeηιIndividual linear combination section addition outer layer head constitutes RLC PDU, second of taking-up n2Individual linear combination section addition outer layer head constitutes RLC PDU,ηι、 112Value by sending RLC PDU every time when, MAC layer informs relevant information, such as send size of data determine.
Data processing method provided in an embodiment of the present invention, n m dimensional vector in the column vector obtained by the bit string division including complete RLC SDU and the coefficient vector table for worth going out according to the parameter L and m that characterize bit string size, which calculate, obtains n linear combination section, and n linear combination section is added outer layer head to constitute RLC PDU.During being somebody's turn to do, by cancelling segmentation and the weight fragmentation scheme of sending side, simplify the data head for the data PDU that sending side is sent, so as to reduce the expense of data head, reach that raising data transfer is imitated The purpose of rate.
Optionally, in data processing method embodiment two of the present invention, go out to n linear combination section addition outer layer head structure after RLC PDU, send side apparatus and send at least one described RLC PDU to side apparatus is received, sequence number SN and vector index are included in each RLC PDU outer layer head, so that the reception side apparatus is for each bit string, judge whether to be received entirely each linear combination section obtained by the bit string according to the vector index, wherein, each linear combination section obtained by same bit string has identical SN.
During being somebody's turn to do, sequence number SN and vector index are included in outer layer head（Vector Index), specifically, reference can be made to Fig. 7.Fig. 7 is the form schematic diagram of outer layer head in data processing method embodiment two of the present invention.The attribute of each domain implication can be found in table 3 in the form schematic diagram of outer layer head shown in Fig. 7, and table 3 is the attribute list in each domain in Fig. 7.
Table 3
Contrast table 1 is understood with table 3, due to cancelling being segmented of rlc layer, weight fragmentation scheme, therefore RF, FI in original RLC PDU outer layer heads etc. is cancelled, and, because the data volume included in RLC PDU is bigger, so reduction SN that can be suitably digit.It refer in table 3, the present embodiment, SN is sequence number, the different linear combinations section calculated by same LX m bit strings may be divided into multiple transmission, i.e., can be located at different RLC PDU, but they use same SN.Some linear combinations section included in one RLC PDU is calculated using different coefficient vectors, and these coefficient vectors are continuously arranged in coefficient vector table, what Vector Index were indicated is sequence number of wherein first coefficient vector in coefficient vector table.
After at least one RLC PDU is received, side apparatus is received to put the RLC PDU with identical SN at least one RLC PDU together, the different linear combinations section that will be calculated by same L X m bit strings is put together, the coefficient vector used when being and may know that each linear combination section is calculated by the Vector Index in outer layer head, whether the order for then calculating those coefficient vectors is equal to m, if equal to if m Think that the group is received.For example, for LXm bit string, assuming that the bit string common property gives birth to n linear combination section, and appoint m (m^n) the individual coefficient vector taken to be linear independence for calculating those linear combinations section during producing, if receiving side apparatus receives linear combination sections multiple enough, when receiving the linear combination section in the RLC PDU with identical SN more than or equal to m, then it is assumed that be received entirely the bit string of the LXm；Otherwise it is assumed that without receiving completely, continue waiting for sending side apparatus and send RLC PDU, to sending side apparatus condition report feedback etc..
Further, for some LX m bit string, if receiving side apparatus to judge to receive each linear combination section obtained by the bit string completely, and during each linear combination section of the bit string before not receiving the bit string completely, to transmission side apparatus condition report feedback, accordingly, send side apparatus and receive the state report for receiving side apparatus feedback, the state report includes the SN for the bit string that the reception side apparatus is received completely, the SN for the bit string not received completely, and the bit string not received completely also need to linear combination section number.
During being somebody's turn to do, state report is control PDU, and control PDU form for details, reference can be made to Fig. 8.The form schematic diagram that Fig. 8 is control PDU in data processing method embodiment two of the present invention.The attribute of each domain implication can be found in table 4 in control PDU form schematic diagrams shown in Fig. 8, and table 4 is the attribute list in each domain in Fig. 8.
Table 4
Comparison diagram 3 and Fig. 8, table 1 are understood with table 4, for state report in the embodiment of the present invention, that is, are controlled PDU, are eliminated El, E2, SO start, SO end etc. so that control PDU forms are simple, Expense is reduced to a certain extent, is conducive to efficiency of transmission.
Further, the group that side apparatus is received for some is received, i.e., for some bit string, if being received entirely each linear combination section obtained by the bit string, the bit string is parsed.Specifically, selecting the linear combination section of m coefficient vector linear independence, coefficient vector is constituted a square formation, inverted, you can draw mX l column vector, so as to drawXl~xm.Specifically, assuming the m linear combination section selected then to calculate X^Xm calculating process such as calculating formula（3) shown in：
It should be noted that bit strings are parsed in addition to using the above method, the equilateral receipts side computing of Gaussian elimination method can also be used, the present invention is not limited thereto system.
Further, side apparatus is sent after the state report for receiving side apparatus feedback is received, according to the state report, the linear combination section that the bit string not received completely described in structure is also needed to；The linear combination section that the bit string not received completely described in structure is also needed to is built into corresponding RLC PDU.
Specifically, side apparatus is sent after the state report for receiving side apparatus feedback is received, the group not received for receiving side sequentially takes the coefficient vector of respective numbers to calculate new linear combination section in coefficient vector table, new RLC PDU are constituted, receiving side is sent to.
Optionally, in data processing method embodiment three of the present invention, each RLC PDU outer layer head includes non-zero hop count m', the m'm, and the m' do not include filling bit with the segmentation before the m'.
Specifically, reference can be made to Fig. 9.Fig. 9 is the form schematic diagram of outer layer head in data processing method embodiment three of the present invention.The attribute of each domain implication can be found in table 5 in the form schematic diagram of outer layer head shown in Fig. 9, and table 5 is the attribute list in each domain in Fig. 9.
M' indicates that in X^Xm first how many sections are not include filling bit
Sequence number of first coefficient vector of VI vector Suo Gong 1 (Vector Index) in coefficient vector table is specifically, in the present embodiment, outer layer head also includes m'.M' indicate beXl~xmIn, first how many sections are not include filling bit, such as filling bit 0.For LXm bit string, it is finally likely to occur some fillers（Padding), bit string is divided into after m sections, behind may have some sections, such as xm,+1, xm,+2... ..., xmWhat can be indicated for 0, m' is the segmentation that front does not include filling bit, and m, m, from the 1st ~ the m, are segmented, i.e.,Xl~xm, it is not include the segmentation of filling bit, and be segmented from the the 111st ,+1 ~ the 111st, i.e. xm,+1~xmIt is the segmentation including filling bit.Work as m, during=m, then illustrate that all segmentations do not include filling bit.
In the present embodiment, because outer layer head also includes m', therefore, reception side apparatus, which only needs to have correctly received at least m' linear combination section, can parse original LXm bit string；Or, m' can also be indicated in turnXl~xmIn how many segmentation include filling bit.
Optionally, in data processing method example IV of the present invention, outer layer head can not include SN, send side apparatus and must assure that receiving side apparatus receives enough linear combination sections, after the bit string that LX m length can correctly be parsed, it could send by the combination of the bit string generation of next LXm length.
Specifically, after to n outer layer head of the linear combination section addition not comprising SN to construct RLC PDU, sending side apparatus to side apparatus is received and sending at least one described RLC PDU;Judge whether the reception side apparatus can parse a complete bit string according at least one the described RLC PDU received；If judging, the reception side apparatus can parse a complete bit string, send and obtain PLC PDU by next bit string.
Receive side apparatus to receive after at least one RLC PDU, to transmission side apparatus condition report feedback.Specifically, the state report for receiving side apparatus feedback can set a timer based on timer, i.e. receiver, upon the timer expiry, then to sending side condition report feedback；When can also be that the P domains of the data PDU outer layer heads received based on Polling, i.e. receiving side are set to need status report, side apparatus be received to transmission side apparatus condition report feedback；There can also be other modes or while there is above two mode, the present invention is not limited thereto system.During being somebody's turn to do, the state report of receiving side feedback need not be comprising ACK_SN, NACK_SN, E etc., but needs comprising a Number, specifically, reference can be made to Figure 10.The form schematic diagram that Figure 10 is control PDU in data processing method example IV of the present invention.The attribute of each domain implication can be found in table 6 in the form schematic diagram of control PDU shown in Figure 10, and table 6 is figure The attribute list in each domain in 10.
Table 6
Optionally, in data processing method embodiment five of the present invention, outer layer head can not include poll bit
(Polling Bit, P) 。
Specifically, in the present embodiment, sending side apparatus and being sent to side apparatus is received at least one described RLC PDU, each RLC PDU outer layer head not comprising poll bit；Then, the state report for not carrying sequence number SN for receiving side apparatus feedback is received, or, carry sequence number SN state report.During being somebody's turn to do, the state report of receiving side feedback a, instruction receives the linear combination section that a side apparatus is correctly received the sufficient amount of bit string generation by same LXm, equivalent to only one ACK of feedback.
When state report does not carry SN, the form of state report can be found in Figure 11.Figure 11 be data processing method embodiment five of the present invention in do not carry SN control PDU form schematic diagram.The attribute of each domain implication can be found in table 7 in the form schematic diagram of control PDU shown in Figure 11, and table 7 is the attribute list in each domain in Figure 11.
Table 7
When state report carries SN, the form of state report can be found in Figure 12 A.The first form schematic diagram for the control PDU that Figure 12 A are carrying SN in data processing method embodiment five of the present invention.The attribute of each domain implication can be found in table 8A in the form schematic diagram of control PDU shown in Figure 12 A, and table 8A is the attribute list in each domain in Figure 12 A.
Table 8A
Abbreviation implication D/C data/control（Data/control) it is data PDU or control PDU
CPT controls PDU types（Control controls PDU type
PDU Type)
ACK-SN confirms SN (the corresponding SN of ACK of Acknowledgement feedbacks, for each correct
SN the bit string of the L X m length) received will be fed back
ACK
When state report carries SN, the form of state report can be found in Figure 12 B.The second form schematic diagram for the control PDU that Figure 12 B are carrying SN in data processing method embodiment five of the present invention.The attribute of each domain implication can be found in table 8B in the form schematic diagram of control PDU shown in Figure 12 B, and table 8B is the attribute list in each domain in Figure 12 B.
Table 8B
In the present embodiment, for a certain LX m bit string, side apparatus is sent before the ACK for receiving side apparatus feedback is not received, the linear combination section produced by the bit string is sent always, untill receiving ACK.During being somebody's turn to do, receiving side status report when is triggered, is entirely to be judged by reception side apparatus, it is not necessary to sends side apparatus by setting poll bit to indicate receiving side status report, therefore the P in data PDU outer layer head can be without, you can fallen with simplifying.
It should be noted that in each above-mentioned embodiment, following the example of for coefficient vector is to take out untapped n m dimensional vectors in turn from coefficient vector table.However, the present invention is not limited thereto system, in other feasible embodiments, the coefficient vector that needs are taken out from coefficient vector table that can also be at random.
For example, because the number of the coefficient vector included in coefficient vector table is limited, for L X m bit string, if taking the coefficient in coefficient vector table in order and sending after RLC PDU, receive side apparatus and do not arrive linear combination sections multiple enough also, when receiving the linear combination section in the RLC PDU with identical SN less than m, original bit string can not be parsed by receiving side apparatus.Under this kind of scene, Coefficient vector can be taken out from coefficient vector table using random following the example of.Specifically, can be random from coefficient vector table to take out coefficient vector according to some probability distribution.As an example it is assumed that comprising 15 different coefficient vectors in coefficient vector table, the probability being drawn is uniformly distributed, i.e., the probability that each coefficient vector is drawn is equal, is 1/15.Now, side apparatus is sent when calculating each linear combination section, and coefficient vector is taken at random from coefficient vector table according to this probability.Because coefficient vector is not taken in order, therefore, in Fig. 7 and outer layer head shown in Fig. 9, except carrying, first coefficient is adjacent to be foretold at Index sunset, but wants the vectorial Index of carry over factor.Such as, the index of 5 coefficient vectors used in this 5 linear combination sections is then accordingly included in outer layer head comprising 5 linear combination sections in a RLC PDU.In addition, in the case that order is taken, it is desirable to appoint a m coefficient vector taking to be linear independence in coefficient vector table, but it is random follow the example of in there is no this requirement then for coefficient vector table.
In addition, it should also be noted that, in each above-mentioned embodiment, dividing the column vector of bit string generation, the combined segment that the column vector generated according to the coefficient vector of taking-up with division bit string is determined is linear combination section.However, the present invention is not limited thereto system, in other feasible embodiments, final determined combination section can also be nonlinear.
It is calculation table under nonlinear situation corresponding to the coefficient vector table under linear case specifically, coefficient vector is not present under nonlinear situation, wherein, calculation table includes multiple nonlinear functions.For example, calculation table can use matrix（A) represent：
By matrix（Α) understand, every a line first row is sequence number in the matrix, back, ^ is nonlinear function, and one has M nonlinear function.
Now, in data handling procedure, bit string is divided into row vector, for example, LXm bit string is sequentially divided into one section per L, m sections is divided into altogether, isXl~xm, by thisXl~xmIndividual segmentation is recorded as l Xm row vector as one group.Now, from calculation table, i.e. matrix（A n nonlinear function is taken out in) to calculate combined segmentyi~yn.Specifically, the n nonlinear function taken out is, for example, Λ, Λ, Κ, Λ, nonlinear combination sectionyi~ynCalculating process such as calculating formula（B shown in)：
For example, when nonlinear function is specially multiple quadratic function, combined segmentyi~ynCalculating formula can be passed through (C) obtain：
In scene of the combined segment for nonlinear combination section, the mode that nonlinear function is taken from calculation table can be by the way of taking or sequentially taking at random, and the present invention is not limited thereto system.In addition, in the case where combined segment is linear, complete receiver of bit string can be judged whether according to the order of coefficient vector group by receiving side apparatus.However, in the case of combined segment is nonlinear, what it is due to taking-up is nonlinear function, so in the absence of order.Compared to combined segment for it is linear when judge whether to be received entirely bit string by order and parse bit string, now, if receiving side apparatus receives enough nonlinear combination sections, original bit string can be parsed by way of solving equation.In the case of this kind, in the feedback scheme described in Figure 10, also need to feed back Number, the combined segment number also needed to, but receiving side apparatus possibly can not learn specific number, so Figure 10 feedback scheme be probably now can not, but other feedback schemes are still available under nonlinear situation in addition to Figure 10.
It should be noted that, in this each above-mentioned embodiment, all PDU form schematic diagrams, form schematic diagram such as data PDU or control PDU is only to illustrate wherein need which necessary domain included, but not to the length progress concrete restriction in domain, the length in drawn each domain is a kind of possible realization or signal in figure.
Figure 13 is the structural representation of data processing equipment embodiment one of the present invention.The data processing equipment that the present embodiment is provided is device embodiment corresponding with Fig. 4 embodiments of the present invention, and the process of implementing will not be repeated here.Specifically, the data processing equipment 100 that the present embodiment is provided is specifically included：
Fill module 11, for the size according to default bit string, take out at least one wireless link control layer service data cell RLC SDU successively from caching, it regard each RLC SDU as data field, to data domain construction internal layer head, each RLC SDU and internal layer head are filled into bit string, if the remaining size of bit string is not enough to fill a RLC SDU, then bit strings supplement filling bit, the size of bit string is m division modules 12 of LX, fill obtained bit string and be sequentially divided into m length for module 11 will to be filled and be uniformly segmented, obtain mX l column vector, wherein, length is L；
Linear combination section generation module 13, for taking out n m dimension row vector from coefficient vector table, the column vector that row vector is obtained with division module 12 is tieed up according to n m, obtain n linear combination section, wherein, one n X l of each linear combination section composition column vector, coefficient vector table is determined by L and m value； Add module 14, adds outer layer head to construct protocol data unit of wireless links control layer RLC PDU for the n linear combination section to the linear combination section generation of generation module 13.
Data processing equipment provided in an embodiment of the present invention, n m dimensional vector in the column vector obtained by the bit string division including complete RLC SDU and the coefficient vector table for worth going out according to the parameter L and m that characterize bit string size, which calculate, obtains n linear combination section, and n linear combination section is added outer layer head to constitute RLC PDU.During being somebody's turn to do, by cancelling segmentation and the weight fragmentation scheme of sending side, simplify the data head for the data PDU that sending side is sent, so as to reduce the expense of data head, reach the purpose for improving data transmission efficiency.
Optionally, add module 14, if being not more than the transmission size of data of Media access contorl MAC layer instruction specifically for the size after n linear combination section addition outer layer head, add outer layer head to constitute a RLC PDU to n linear combination section.
Optionally, add module 14, if being more than the transmission size of data that Media access contorl MAC layer is indicated specifically for the size after n linear combination section addition outer layer head, take out a linear combination section, to n from n linear combination sectionxIndividual linear combination section adds outer layer head to constitute RLC PDU.
Figure 14 is the structural representation of data processing equipment embodiment two of the present invention.As shown in figure 14, the data processing equipment 200 of the present embodiment is on the basis of Figure 13 apparatus structures, optionally, in addition to：Sending module 15, for sending at least one RLC PDU to reception side apparatus, sequence number SN and vector index are included in each RLC PDU outer layer head, so as to receive side apparatus for each bit string, judged whether to be received entirely bit string according to vector index, wherein, each linear combination section obtained by same bit string has identical SN.
Optionally, then Figure 14 is refer to, the data processing equipment 200 also includes：
The number for the linear combination section that receiving module 16, the state report for receiving side apparatus feedback, SN, the SN of the bit string that does not completely receive of the state report including receiving the bit string that side apparatus is received completely, and the bit string not received completely are also needed to.
Optionally, then Figure 14 is refer to, the data processing equipment 200 also includes：
Processing module 17, for according to state report, building the linear combination section that the bit string not received completely is also needed to；The linear combination section that the bit string not received completely of structure is also needed to is built into corresponding RLC optionally, and each RLC PDU outer layer head includes non-zero hop count m', m'm, the m' and do not include filling bit with the segmentation before m'. Optionally, sending module 15, for sending at least one RLC PDU to reception side apparatus;Processing module 17, for receiving whether side apparatus can parse a complete bit string according at least one the RLC PDU received, if judging, a complete bit string can be parsed by receiving side apparatus, sent and obtained PLC PDU by next bit string.
Optionally, receiving module 16, state report for receiving side apparatus feedback, state report, which is carried, receives whether side apparatus can parse the information of a complete bit string according at least one the RLC PDU received, and state report includes data Number domains.
Optionally, sending module 15, do not include poll bit for being sent to reception side apparatus at least one RLC PDU, each RLC PDU outer layer head；Receiving module 16, the state report for receiving side apparatus feedback.
Optionally, receiving module 16, the state report for not carrying sequence number SN specifically for receiving side apparatus feedback；Or, receive the state report for carrying sequence number SN of side apparatus feedback.
Optionally, then Figure 14 is refer to, the data processing equipment 200 also includes：
Module 18 is prepared, parameter L and m, the coefficient vector table of bit string size are characterized for configuring；Sending module 15, for sending parameter L and m to user equipment, or, the parameter L and m for characterizing bit string size, coefficient vector table are sent to user equipment.
Optionally, receiving module 16, the parameter L and m of the sign bit string size for receiving base station transmission, according to parameter L and m, determine coefficient vector table, or, receive the parameter L and m for the sign bit string size that base station is sent, coefficient vector table.
Figure 15 is the structural representation of data processing equipment embodiment three of the present invention.As shown in figure 15, the data processing equipment 300 that the present embodiment is provided, including：Processor 31 and memory 32.Data processing equipment 300 can also include transmitter 33, receiver 34.Transmitter 33 can be connected with receiver 34 with processor 31.Wherein, transmitter 33 is used to send data or information, receiver 34 is used to receive data or information, memory 32 stores execute instruction, when data processing equipment 300 is run, is communicated between processor 31 and memory 32, processor 31 calls the execute instruction in memory 32, for performing embodiment of the method shown in Fig. 4, its implementing principle and technical effect is similar, and here is omitted.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can be completed by the related hardware of programmed instruction, foregoing program can be stored in a computer read/write memory medium, the program upon execution, performs the step of including above method embodiment；And it is foregoing Storage medium include：ROM, RAM, magnetic disc or CD etc. are various can be with the medium of store program codes.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although the present invention is described in detail with reference to foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent substitution to which part or all technical characteristic；And these modifications or replacement, the essence of appropriate technical solution is departed from the scope of various embodiments of the present invention technical scheme.

Claims (1)

  1. Claims
    1st, a kind of data processing method, it is characterised in that including：
    According to the size of default bit string, take out at least one wireless link control layer service data cell RLC SDU successively from caching, it regard each RLC SDU as data field, to the data domain construction internal layer head, each RLC SDU and the internal layer head are filled into the bit string, if the remaining size of bit string is not enough to fill a RLC SDU, filling bit then is supplemented to the bit string, the size of the bit string is L X m, wherein, described L, m are positive integer；
    The bit string is sequentially divided into m length to be uniformly segmented, mX l column vector is obtained, wherein, the length is L；
    N m dimension row vector is taken out from coefficient vector table, row vector and the column vector are tieed up according to the n m, obtain n linear combination section, wherein, one n X l of each linear combination section composition column vector, the coefficient vector table is determined that the n is positive integer by L and m value；
    N linear combination section is added outer layer head to construct protocol data unit of wireless links control layer
    2nd, according to the method described in claim 1, it is characterised in that it is described to n linear combination section addition outer layer head to construct RLC PDU, including：
    If the size after the n linear combination section addition outer layer head is not more than the transmission size of data of MAC layers of instruction of Media access contorl, n linear combination section is added the outer layer head to constitute a RLC PDUo
    3rd, according to the method described in claim 1, it is characterised in that it is described to n linear combination section addition outer layer head to construct protocol data unit of wireless links control layer RLC PDU, including：
    If the size after the n linear combination section addition outer layer head is more than the transmission size of data that Media access contorl MAC layer is indicated, a linear combination section is taken out from n linear combination section, to the nxIndividual linear combination section adds outer layer head to constitute RLC PDUo
    4th, the method according to any one of claim 1 ~ 3, it is characterised in that it is described to n linear combination section addition outer layer head with after constructing protocol data unit of wireless links control layer RLC PDU, in addition to：
    At least one described RLC PDU is sent to side apparatus is received, sequence number SN and vector index are included in each RLC PDU outer layer head, so that the reception side apparatus is for each bit string, judged whether to be received entirely the bit string according to the vector index, wherein, by same bit string obtain it is each linear Combined segment has identical SN.
    5th, method according to claim 4, it is characterised in that described to receiving after side apparatus sends at least one described RLC PDU, in addition to：
    Receive the number for the linear combination section that the state report for receiving side apparatus feedback, SN, the SN for the bit string not received completely of the bit string that the state report is received completely including the reception side apparatus, and the bit string not received completely are also needed to.
    6th, method according to claim 5, it is characterised in that after the reception state report for receiving side apparatus feedback, in addition to：
    According to the state report, the linear combination section that the bit string not received completely described in structure is also needed to；The linear combination section that the bit string not received completely described in structure is also needed to is built into corresponding RLC
    7th, the method according to any one of claim 1 ~ 3, it is characterised in that each RLC PDU outer layer head includes non-zero hop count m', the m'm, the m' do not include filling bit with the segmentation before the m'.
    8th, the method according to any one of claim 1 ~ 3, it is characterised in that it is described to n linear combination section addition outer layer head with after constructing protocol data unit of wireless links control layer RLC PDU, in addition to：
    At least one described RLC PDU is sent to side apparatus is received;
    Judge whether the reception side apparatus can parse a complete bit string according at least one the described RLC PDU received；
    If judging, the reception side apparatus can parse a complete bit string, send and obtain PLC PDU by next bit string.
    9th, method according to claim 8, it is characterised in that it is described judge whether the reception side apparatus can parse a complete bit string according at least one the described RLC PDU received before, in addition to：
    Receive the state report for receiving side apparatus feedback, the state report carries whether the reception side apparatus can parse the information of a complete bit string according at least one the described RLC PDU received, and the state report includes data Number domains.
    10th, the method according to any one of claim 1 ~ 3, it is characterised in that it is described to the n linear combination section addition outer layer head with construct protocol data unit of wireless links control layer RLC PDU it Afterwards, in addition to：
    Poll bit is not included at least one described RLC PDU, each RLC PDU outer layer head to receiving side apparatus and sending；
    Receive the state report for receiving side apparatus feedback.
    11st, method according to claim 10, it is characterised in that the reception state report for receiving side apparatus feedback, including：
    Receive the state report for not carrying sequence number SN for receiving side apparatus feedback；Or, receive the state report for carrying sequence number SN for receiving side apparatus feedback.
    12nd, the method according to any one of claim 1 ~ 11, characterized in that, the size according to default bit string, takes out at least one wireless link control layer service data cell RLC SDU successively from caching, before each RLC SDU constructions internal layer head, in addition to：
    Configuration characterizes parameter L and m, the coefficient vector table of the bit string size；
    The parameter L and m is sent to user equipment, or, the parameter L and m for characterizing the bit string size, the coefficient vector table are sent to the user equipment.
    13rd, the method according to any one of claim 1 ~ 11, characterized in that, the size according to default bit string, takes out at least one wireless link control layer service data cell RLC SDU successively from caching, before each RLC SDU constructions internal layer head, in addition to：
    The parameter L and m for the sign bit string size that base station is sent are received, according to the parameter L and m, the coefficient vector table is determined, or,
    Receive the parameter L and m for the sign bit string size that base station is sent, the coefficient vector table.
    14th, a kind of data processing equipment, it is characterised in that including：
    Fill module, for the size according to default bit string, take out at least one wireless link control layer service data cell RLC SDU successively from caching, it regard each RLC SDU as data field, to the data domain construction internal layer head, each RLC SDU and the internal layer head are filled into the bit string, if the remaining size of bit string is not enough to fill a RLC SDU, filling bit then is supplemented to the bit string, the size of the bit string is LX m, wherein, described L, m are positive integer；
    Division module, the bit string for the filling module filling to be obtained sequentially is divided into m length and is uniformly segmented, and obtains mX l column vector, wherein, the length is L；
    Linear combination section generation module, for taking out n m dimension row vector from coefficient vector table, ties up the column vector that row vector is obtained with the division module according to the n m, obtains n linear combination Section, wherein, one n X l of each linear combination section composition column vector, the coefficient vector table is determined that the n is positive integer by L and m value；
    Add module, adds outer layer head to construct protocol data unit of wireless links control layer RLC PDU for the n linear combination section to linear combination section generation module generation.
    15th, device according to claim 14, it is characterised in that
    The add module, if being not more than the transmission size of data of Media access contorl MAC layer instruction specifically for the size after n linear combination section addition outer layer head, n linear combination section is added the outer layer head to constitute a RLC PDU.
    16th, device according to claim 14, it is characterised in that
    The add module, if being more than the transmission size of data that Media access contorl MAC layer is indicated specifically for the size after n linear combination section addition outer layer head, takes out a linear combination section, to the n from n linear combination sectionxIndividual linear combination section adds outer layer head to constitute RLC PDUo
    17th, the device according to any one of claim 14 ~ 16, it is characterised in that described device also includes：
    Sending module, for sending at least one described RLC PDU, each RLC to reception side apparatus
    Sequence number SN and vector index are included in PDU outer layer head, so that the reception side apparatus is for each bit string, judged whether to be received entirely the bit string according to the vector index, wherein, each linear combination section obtained by same bit string has identical SN.
    18th, device according to claim 17, it is characterised in that described device also includes：Receiving module, state report for receiving the reception side apparatus feedback, the state report includes SN, the SN for the bit string not received completely of bit string that the reception side apparatus is received completely, and the number of linear combination section that the bit string not received completely is also needed to.
    19th, device according to claim 18, it is characterised in that described device also includes：Processing module, for according to the state report, building the linear combination section that the bit string not received completely is also needed to；The linear combination section that the bit string not received completely described in structure is also needed to is built into corresponding RLC PDU.
    20th, the device according to any one of claim 14 ~ 16, it is characterised in that each RLC PDU outer layer head includes non-zero hop count m', the m'm, the m' do not include filling bit with the segmentation before the m'.
    21st, the device according to any one of claim 14 ~ 16, it is characterised in that described device is also Including：
    Sending module, for sending at least one described RLC PDU to reception side apparatus;
    Processing module, whether a complete bit string can be parsed according at least one the described RLC PDU received for the reception side apparatus, if judging, the reception side apparatus can parse a complete bit string, send and obtain PLC PDU by next bit string.
    22nd, device according to claim 21, it is characterised in that described device also includes：Receiving module, state report for receiving the reception side apparatus feedback, the state report carries whether the reception side apparatus can parse the information of a complete bit string according at least one the described RLC PDU received, and the state report includes data Number domains.
    23rd, the device according to any one of claim 14 ~ 16, it is characterised in that
    The sending module, is additionally operable to send at least one described RLC PDU, each RLC PDU outer layer head not comprising poll bit to reception side apparatus；
    The receiving module, is additionally operable to receive the state report of the reception side apparatus feedback.
    24th, device according to claim 23, it is characterised in that
    The receiving module, specifically for receiving the state report for not carrying sequence number SN for receiving side apparatus feedback；Or, receive the state report for carrying sequence number SN for receiving side apparatus feedback.
    25th, the device according to any one of claim 14 ~ 24, it is characterised in that described device also includes：
    Module is prepared, parameter L and m, the coefficient vector table of the bit string size are characterized for configuring;The sending module, is additionally operable to send the parameter L and m to user equipment, or, the parameter L and m for characterizing the bit string size, the coefficient vector table are sent to the user equipment.
    26th, the device according to any one of claim 14 ~ 24, it is characterised in that
    The receiving module, the parameter L and m of the sign bit string size for receiving base station transmission, according to the parameter L and m, determine the coefficient vector table, or, receive the parameter L and m for the sign bit string size that base station is sent, the coefficient vector table.
    27th, a kind of data processing equipment, it is characterised in that including：Processor and memory, the memory storage execute instruction, when the data processing equipment is run, communicated between the processor and the memory, execute instruction described in the computing device causes the data processing equipment to perform the method as described in any one of claim 1 ~ 13.
CN201480000425.0A 2014-03-19 2014-03-19 Data processing method and device Active CN105191260B (en)

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