CN107094123A - PDU transmission methods and device - Google Patents
PDU transmission methods and device Download PDFInfo
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- CN107094123A CN107094123A CN201610091434.6A CN201610091434A CN107094123A CN 107094123 A CN107094123 A CN 107094123A CN 201610091434 A CN201610091434 A CN 201610091434A CN 107094123 A CN107094123 A CN 107094123A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/90—Buffering arrangements
- H04L49/9057—Arrangements for supporting packet reassembly or resequencing
Abstract
The embodiment of the invention discloses a kind of PDU transmission methods and device, wherein, methods described includes：Sequence number mark is set up to data PDU waiting for transmission in current RLC, the data PDU that the sequence number mark is had additional in current RLC is transmitted.Data PDU is ranked up by RLC, PDCP resource processing load is significantly reduced.
Description
Technical field
The present invention relates to protocol Data Unit (PDU, Protocol Data Unit) transmission technology, and in particular to
A kind of PDU transmission methods and device.
Background technology
In long evolving system (LTE, Long Term Evolution) WAP architecture,
Access system is divided into three below level：Layer one is physical layer (PHY, Physical Layer), layer three
For radio resource control layer (RRC, Radio Resource Control), layer two includes media access control layer
(MAC, Media Access Control), wireless chain control layer (RLC, Radio Link Control)
And packet data convergence protocol layer (PDCP, Packet Data Convergence Protocol) etc. three sublayers.
RLC PDU include data PDU and control PDU both types.Carrying out man-to-man data PDU
During transmission, PDCP need not be ranked up to received data PDU.In many-to-one data PDU
During transmission, the PDCP received in object is also needed into line number after the PDU of multiple transmitting terminal transmission is received
According to PDU sequence, in this way, substantially increasing the resource processing load for the PDCP for receiving object.
The content of the invention
To solve technical problem present in prior art, the embodiment of the present invention provides a kind of PDU transmission
Method and device, to mitigate the resource processing load for the PDCP for receiving object.
What the technical scheme of the embodiment of the present invention was realized in：
The embodiment of the present invention provides a kind of PDU transmission methods, and methods described includes：
Sequence number mark is set up to data PDU waiting for transmission in current RLC；
Transmission has additional the data PDU of the sequence number mark.
In the embodiment of the present invention, data PDU waiting for transmission is set up before sequence number mark in current RLC,
Methods described also includes：
It is determined that the sequence number mark of data PDU described in current RLC.
In the embodiment of the present invention, the sequence number mark for determining data PDU described in current RLC, including：
Determine the PDU clusters belonging to data PDU waiting for transmission；
Determine the mark of the PDU clusters；
The sequence number of the data PDU is identified into the mark as the PDU clusters.
In the embodiment of the present invention, when data PDU waiting for transmission in current RLC sets up sequence number mark,
Methods described also includes：
Cluster end of identification is set up for data PDU waiting for transmission, the cluster end of identification is used to characterize the data
PDU is last PDU of the PDU clusters belonging to the data PDU.
In the embodiment of the present invention, it is determined that data PDU waiting for transmission is last in the PDU clusters
It is the first numerical value by cluster end of identification value during PDU；
When determining last PDU in the non-PDU clusters of data PDU waiting for transmission, cluster is terminated into mark
Knowledge value is second value；
First numerical value is different from second value.
In the embodiment of the present invention, the length of the sequence number mark is 2M× N-1 bit, M, N are to be more than
Positive integer equal to 1, the length of the cluster end of identification is at least one bit.
In the embodiment of the present invention, when data PDU waiting for transmission uses the data based on affirmation mode AMD
PDU structures use the data PDU segment structures based on AMD, and M=3, N=1, cluster terminate
When the length of mark is 1, the cluster end of identification is located at least in the data PDU structures or the number
According to the 7th bit of PDU segment structures, the sequence number mark is located at least in the data PDU structures or institute
State the 8th to the 14th bit of data PDU segment structures.
A kind of PDU transmitting devices, described device includes：
First sets up unit, for setting up sequence number mark to data PDU waiting for transmission in current RLC；
First transmission unit, the data PDU of the sequence number mark is had additional for transmitting.
In the embodiment of the present invention, described device also includes：
First determining unit, for determining that the sequence number of data PDU described in current RLC is identified.
In the embodiment of the present invention, first determining unit is additionally operable to：
Determine the PDU clusters belonging to data PDU waiting for transmission；
Determine the mark of the PDU clusters；
The sequence number of the data PDU is identified into the mark as the PDU clusters.
In the embodiment of the present invention, described device also includes：
Second sets up unit, and for setting up cluster end of identification for data PDU waiting for transmission, the cluster terminates mark
Know last PDU for characterizing PDU clusters of the data PDU belonging to the data PDU.
In the embodiment of the present invention, described device also includes the second determining unit, for determining data waiting for transmission
PDU be the PDU clusters in last PDU when, by cluster end of identification value be the first numerical value；
During for data PDU waiting for transmission for last PDU in the PDU clusters, cluster is terminated
Mark value is second value；
First numerical value is different from second value.
In the embodiment of the present invention, the length of the sequence number mark is 2M× N-1 bit, M, N are to be more than
Positive integer equal to 1, the length of the cluster end of identification is at least one bit.
In the embodiment of the present invention, when data PDU waiting for transmission uses the data based on affirmation mode AMD
PDU structures use the data PDU segment structures based on AMD, and M=3, N=1, cluster terminate
When the length of mark is 1, the cluster end of identification is located at least in the data PDU structures or the number
According to the 7th bit of PDU segment structures, the sequence number mark is located at least in the data PDU structures or institute
State the 8th to the 14th bit of data PDU segment structures.
In the PDU transmission methods and device of the embodiment of the present invention, to data PDU waiting for transmission in current RLC
Sequence number mark is set up, the data PDU that the sequence number mark is had additional in current RLC is transmitted.In this way, RLC
The sequence for carrying out PDU can be identified according to its sequence number, effectively to having additional the data PDU that sequence number is identified
Alleviate the resource processing load for receiving the PDCP in object.
Brief description of the drawings
Fig. 1 is the implementation process schematic diagram one of PDU transmission methods in the embodiment of the present invention；
Fig. 2 is the implementation process schematic diagram two of PDU transmission methods in the embodiment of the present invention；
Fig. 3 is the implementation process schematic diagram three of PDU transmission methods in the embodiment of the present invention；
Fig. 4~Fig. 7 is four kinds of schematic diagrames of the PDU structures based on AMD PDU in the embodiment of the present invention；
Fig. 8~Figure 11 is four kinds of signals of the PDU segmental structures based on AMD PDU in the embodiment of the present invention
Figure；
Figure 12 is the data frame structure schematic diagram based on AM in the embodiment of the present invention；
Figure 13 is the composition structural representation one of PDU transmitting devices in the embodiment of the present invention；
Figure 14 is the composition structural representation two of PDU transmitting devices in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail, it will be appreciated that following described
Bright preferred embodiment is merely to illustrate and explain the present invention, and is not intended to limit the present invention.
In the embodiment of the present invention, by multiple RLC each the data PDU of itself transmit to it is same receive
In the case of object, for each RLC, sequence number mark is set up to data PDU waiting for transmission in the RLC,
So that RLC identifies the sequence for carrying out PDU according to this sequence number, to mitigate PDCP resource processing load.
Fig. 1 is the implementation process schematic diagram one of PDU transmission methods in the embodiment of the present invention；As shown in figure 1,
Methods described includes：
Step 101：The sequence number mark of the data PDU is set up to data PDU waiting for transmission in current RLC
Know；
In the present embodiment, for the respective PDU of multiple RLC transmissions to the situation of same reception object, pin
To each RLC, the sequence number mark of the PDU is set up in data PDU waiting for transmission.
Step 102：Transmission has additional the data PDU of the sequence number mark.
In a preferred embodiment, before step 101, methods described also includes step 100 (such as
Shown in Fig. 2)：It is determined that data PDU waiting for transmission sequence number is identified in current RLC.
It is transmitted due to data in the form of PDU clusters, so will be to be transmitted in RLC in the present embodiment
Data PDU sequence number mark value be data PDU belonging to PDU clusters mark.Data PDU
Sequence number mark be preferably a numerical value, such as numerical value 1 or numerical value 2.It will be appreciated by those skilled in the art that
The implication of PDU clusters is with one section of continuous P DCP SN (referring to the implication of the SN in rear Fig. 4-11) number
PDU。
As a kind of implementation, as shown in figure 3, the step 100 includes：
Step 1001：Determine the PDU clusters belonging to data PDU waiting for transmission；
Here, because RLC is the data PDU carried out in units of PDU clusters transmission, for some
RLC, if it is responsible for PDU 1 transmission, the RLC needs first to determine the PDU clusters belonging to PDU 1.
Step 1002：Determine the mark of the PDU clusters；
Step 1003：The sequence number of the data PDU is identified into the mark as the PDU clusters.
Here, all PDCP clusters of multiple RLC to a reception object transfer are identified in advance, made
For a kind of implementation, it can be identified using numerical value.For example, current multiple RLC need transmission 300 altogether
Individual PDU, provides that every 100 PDU are classified as a PDU cluster, i.e., the 1st~100 PDU belongs to cluster 1,
101st~200 PDU belongs to cluster 2, and the 201st~300 belongs to cluster 3, and RLC 1 is responsible for the transmission of cluster 1,
RLC 2 is responsible for the transmission of cluster 2, and RLC 3 is responsible for the transmission of cluster 3.0000001 is designated with cluster 1,
Exemplified by PDU waiting for transmission is PDU 1 in RLC 1, in RLC 1, the cluster belonging to PDU 1 is first determined
For cluster 1, the mark 0000001 of the cluster distributed in advance for cluster 1, mark PDU 1 sequence number mark are read
For 0000001, and sequence number mark is carried in PDU transmitted from RLC 1 to receiving object.Namely
Say, the data PDU sequence numbers mark for belonging to same PDU clusters is identical, is the mark of the same PDU clusters.
As can be seen here, the data PDU of itself is each transmitted in multiple RLC to the feelings of same reception object
Under shape, for each RLC, data PDU sequence is set up to data PDU waiting for transmission in the RLC
Number mark, due to RLC be in the form of PDU clusters progress data PDU transmission, so RLC is treated
The mark of PDU cluster of the data PDU of the transmission sequence number mark value belonging to it, transmission has additional the sequence
The PDU of number mark is to receiving object.When the corresponding PDU clusters of each RLC transmission to same reception object
When, RLC can just carry out PDU sequence according to the mark of PDU clusters, in this way, by RLC completions pair
PDU sequence, can effectively mitigate the resource processing load for receiving the PDCP in object.
In a preferred embodiment of the invention, for each RLC PDU clusters transmitted, it is necessary to
Cluster end of identification is set up in each data PDU of each cluster, has been transferred with the clearly PDU clusters.It is based on
This, methods described also includes：
Data PDU waiting for transmission is set up into cluster end of identification, the cluster end of identification is treated for characterizing RLC
The data PDU of transmission is last PDU of the PDU clusters belonging to data PDU；Judge waiting for transmission
Whether data PDU is last PDU in the PDU clusters；It is judged as data PDU waiting for transmission
It is the first numerical value by cluster end of identification value during for last PDU in the PDU clusters；It is judged as
When data PDU waiting for transmission is for last PDU in the PDU clusters, by cluster end of identification value
For second value；First numerical value is different from second value.
Here, still by taking foregoing application scenarios as an example, current multiple RLC need to same PDCP altogether
300 PDU are transmitted, provide that every 100 PDU are classified as a PDU cluster, i.e., the 1st~100 PDU
Belong to the 1, the 101st~200 PDU of cluster and belong to cluster 2, the 201st~300 belongs to cluster 3, and RLC 1 is responsible for cluster 1
Transmission, RLC 2 is responsible for the transmission of cluster 2, and RLC 3 is responsible for the transmission of cluster 3.With 1~PDU of PDU in cluster 1
Exemplified by 100, while correspondence sequence number mark is set up in each PDU, cluster end of identification is also set up, the cluster
End of identification can value be corresponding numerical value, such as can be 0 or 1 as a kind of example.For PDU 1~
PDU 99, because not being last PDU in cluster 1, the equal value of cluster end of identification is second value
0, it is not last PDU that second value 0, which represents PDU,.For PDU 100, its be in cluster 1 most
Latter PDU, so the cluster end of identification value of the PDU is 1.By PDU cluster end of identification come
Specify whether cluster 1 transfers.By the value for carrying out cluster end of identification to PDU waiting for transmission in RLC
This operation, it is determined that whether corresponding PDU clusters are transmitted, can be according to the value of cluster end of identification
Sequences of the RLC to PDU clusters provides certain basis, reduces PDCP processing load.Need
Bright, the value of the first numerical value and second value can be the unequal numerical value of any two, not merely
It is limited to 0 and 1, because value taken is unable to limit, illustrating for his value is repeated no more here.
It will be appreciated by those skilled in the art that PDU involved in the present embodiment is data PDU, by
The data PDU (TMD PDU) based on transparent transmission mode can be divided into data PDU, based on non-acknowledgement
The data PDU (UMD PDU) of pattern and the data PDU (AMD PDU) based on affirmation mode etc.
It is several.The PDU based on AMD PDU that Fig. 4~Figure 11 is used by the data PDU in the present embodiment
The schematic diagram of structure and PDU segmental structures.
Wherein, data PDU sequence number mark is represented by HSN (Hyper Sequence Number) domains,
Cluster end of identification is represented by Endmaker (EM) domains.General, the length in HSN domains is 2M× N-1
Bit, M, N are the positive integer more than or equal to 1, and the length in EM domains is at least one bit.
It is 1 by 3, N of M in Fig. 4~Figure 11 as illustrating.HSN domains account for 8 × N-1=8 × 1-1=7 ratio
Special position, EM domains are accounted for exemplified by 1 bit.In Fig. 4-11, a byte, each word are represented per a line
Section accounts for 8bit.
Fig. 4~Fig. 7 is four kinds of schematic diagrames of the PDU structures based on AMD PDU.
In Fig. 4~Fig. 7, PDU structures include PDU two parts of data field Data and AMD.AMD
PDU are divided into fixed part and expansion.The fixed part that AMD is PDU is used to indicate PDU information,
It is made up of D/C, RF, P, FI, E and SN field.The expansion that AMD is PDU is used to indicate institute
Comprising SDU or SDU segmentation length, itself press byte-aligned, be made up of E and LI fields.This
In embodiment, EM is located at the 7th bit, and HSN is located at the 8th to the 14th bit, i.e. HSN takes
Last bit and the first six bit of the second row of the first row.Expansion is only deposited in PDU
Exist when one or more data field Data, and to except other overseas data of last data
Domain is indicated by an E and LI field.It will be appreciated by those skilled in the art that EM is located at the 7th ratio
Special position, HSN positioned at the 8th to the 14th bit be merely exemplary explanation, the present invention limit EM,
The particular locations of HSN in a data frame.
The implication of each field is as follows in PDU structures：
D/C：Data/control indication bit (1 bit), for indicate current PDU be data PDU or
Control PDU；
RF：Indication bit (1 bit) is segmented, for indicating that current PDU uses PDU structures or PDU
Segmental structure；
P：Poll indication bit (1 bit), indicates whether RLC transmitting terminals need peer-entities to send state
Report；
FI：Identification bit (2 bit), indicates that a PDU is divided in starting or the end of data field
Position；
E：Reserved extended bit (1 bit)；
SN：Sequence number bit (2 bit), indicates current PDU sequence number；
LI：Length indication field, indicates the byte length in data field.
Fig. 5 be PDU structures in there is no LI situation.LI indicates the byte length of data field in Fig. 6,7
For 11.There are odd number LI, k=1,3,5 ... in figure 6；In the figure 7 have even number LI, k=2,
4、6….LI indicates that the byte length of data field is 15 in the figure 7.Wherein, in Fig. 4~Fig. 7, Oct
1 represents the 1st byte, Oct【L】Represent l-th byte, such as Oct【3.5+1.5k-4】Represent (3.5+1.5k-4)
Individual byte.That is, the data PDU in the present embodiment can use any one PDU in Fig. 4~Fig. 7
Structure carries out PDU transmission.
Fig. 8~Figure 11 is four kinds of schematic diagrames of the PDU segmental structures based on AMD PDU.
PDU segmental structures include data field Data and AMD PDU fragment header two parts.PDU points of AMD
Paragraph header includes fixed part and expansion.The fixed part of AMD PDU fragment header is used to indicate PDU points
Segment information, itself presses byte-aligned, is made up of D/C, RF, P, FI, E, SN, LSF and SO field.
The expansion itself of AMD PDU fragment header presses byte-aligned, is made up of E and LI fields, expansion
Only in PDU exist one or more data field when exist, and to except last data it is overseas
Other data fields indicated by an E and LI field.In the present embodiment, EM is located at the 7th bit
Position, HSN is located at last bit and that the 8th to the 14th bit, i.e. HSN occupy the first row
The first six bit of two rows.It will be appreciated by those skilled in the art that EM is located at the 7th bit, HSN
Explanation is merely exemplary positioned at the 8th to the 14th bit, the present invention does not limit EM, HSN in data
Particular location in frame.
Wherein, D/C, RF, P, FI, E, SN are identical with foregoing implication.LSF：Finally segmentation is indicated
Field, for indicate current PDU segmentation ending whether be the PDU data ending.SO：Segmentation is inclined
Indication field is put, for indicating that PDU is segmented the byte location in AMD PDU.
Fig. 8 be PDU segmental structures in there is no LI situation.LI indicates the byte of data field in Fig. 9,10
Length is 11.There are odd number LI, K=1,3,5 ... in fig .9；There is even number LI in Fig. 10,
K=2,4,6 ....LI indicates that the byte length of data field is 15 in fig. 11.Wherein, in Fig. 8~Figure 11
In, Oct 1 represents the 1st byte, Oct【L】Represent l-th byte, such as Oct【5.5+1.5K-4】
Represent (5.5+1.5K-4) individual byte.That is, data PDU in the present embodiment can using Fig. 8~
Any one PDU segmental structure in Figure 11 carries out PDU transmission.
Foregoing is the PDU structures to AMD and the explanation of PDU segmental structures, based on shown in Fig. 4~Figure 11
It can obtain the data frame structure based on affirmation mode (AM) of rlc layer as shown in figure 12.In Figure 12
In, still using HSN as 7 bits, EM is 1 bit, and each byte is exemplified by 8 bits, EM is located at
7th bit, HSN occupies last of the first row positioned at the 8th to the 14th bit, i.e. HSN
The first six bit of bit and the second row.It will be appreciated by those skilled in the art that EM is located at the 7th bit
, HSN is merely exemplary to illustrate positioned at the 8th to the 14th bit, restriction EM of the invention,
The particular locations of HSN in a data frame.
It can be seen that from Fig. 4~Figure 12, in the embodiment of the present invention, in PDU structures or PDU segmental structures
In set up HSN fields and EM fields.Wherein, HSN fields are used to represent the PDU belonging to current PDU
Cluster；EM fields are used for last PDU for characterizing PDU clusters of the current PDU belonging to PDU.RLC
When receiving multiple PDU clusters, according to HSN fields and EM fields, quickly PDU clusters can be arranged
Sequence, simply and effectively realizes PDU sequences processing.
In the embodiment of the present invention, transmitting terminal carries out PDU cluster distribution, and each PDU cluster are through place
Reason is mapped as one group of RLC PDU.The RLC PDU of multi-set parallel are sent to after receiving terminal, receiving terminal RLC
The end position that EM domains determine current PDU cluster is first according to, then to the institute in PDU cluster
There are RLC PDU to be ranked up, the PDU cluster that last RLC is completed to internal sort are complete according to HSN
Into overall sequence.HSN facilitates receiving terminal to receive PDU cluster as PDU cluster unique mark
It is ranked up afterwards.
The embodiment of the present invention has following several advantages：
1) in RLC sides, No. HSN (this number and the PDU clusters belonging to it are set up to PDU waiting for transmission
Mark is identical), to cause RLC sides quickly to realize the sequence of PDU clusters according to No. HSN, so as to mitigate
Receive the PDU sequence burden of the PDCP in object；
2) in the embodiment of the present invention, actually just data PDU has been done to a certain extent in RLC sides
Sequence, this sequence enormously simplify demands of the RLC to data packet sequencing, is relatively adapted to 5G and zooms out net
The networking mode of for example non-ideal forward pass of network；
3) when link re-establishment stands or switched, data re-transmission can be reduced according to No. HSN.
The embodiment of the present invention also provides a kind of PDU transmitting devices, and as shown in figure 13, described device includes：
First sets up unit 130, for setting up the data to data PDU waiting for transmission in current RLC
PDU sequence number mark；
In the present embodiment, for the respective PDU of multiple RLC transmissions to same PDCP situation, specifically
The sequence number of setting up the PDU is set up in the data PDU that 130 pairs of unit is transmitted to the PDCP from first
Mark.
First transmission unit 131, the data PDU of the sequence number mark is had additional for transmitting.
Due to being transmitted between RLC and PDCP in the form of PDU clusters, so will be treated in the present embodiment
The data PDU of transmission sequence number mark value is the mark of the PDU clusters belonging to data PDU.Data
PDU sequence number mark is preferably a numerical value, such as can be numerical value 1 or numerical value 2 as a kind of example.
It will be appreciated by those skilled in the art that the implication of PDU clusters is (referring to above with one section of continuous P DCP SN
The implication of SN in Fig. 4-11) number PDU.
As shown in figure 14, described device also includes：
First determining unit 132, for determining that the sequence number of data PDU described in current RLC is identified；Enter
As a kind of implementation, first determining unit 132 is additionally operable to determine data PDU institutes waiting for transmission
The PDU clusters of category；Determine the mark of the PDU clusters；Using the sequence number mark of the data PDU described in
The mark of PDU clusters.
Here, because RLC is the data PDU carried out in units of PDU clusters transmission, for some
RLC, if it is responsible for PDU 1 transmission, the RLC, specific is needed first really by the first determining unit 132
Determine the PDU clusters belonging to PDU 1.In advance to multiple RLC to it is same reception object transfer all PDU
Cluster is identified, and can be identified using numerical value.For example, current multiple RLC are needed to same PDCP
300 PDU are transmitted, provide that every 100 PDU are classified as a PDU cluster, i.e., the 1st~100 PDU
Belong to the 1, the 101st~200 PDU of cluster and belong to cluster 2, the 201st~300 belongs to cluster 3, and RLC 1 is responsible for cluster 1
Transmission, RLC 2 is responsible for the transmission of cluster 2, and RLC 3 is responsible for the transmission of cluster 3.With being designated for cluster 1
In 0000001, RLC 1 PDU waiting for transmission be PDU 1 exemplified by, in RLC 1, the first determining unit
132 first determine that the cluster belonging to PDU 1 is cluster 1, read the mark 0000001 of the cluster distributed in advance for cluster 1,
The sequence number mark for identifying PDU 1 is also 0000001, and first sets up unit 130 sets up the sequence number for PDU 1
Mark, the first transmission unit 131 transmits sequence number mark carrying to PDCP in PDU from RLC 1.
That is, the data PDU sequence numbers mark for belonging to same PDU clusters is identical, it is the same PDU clusters
Mark.
As can be seen here, the data PDU of itself is each transmitted in multiple RLC to the feelings of same reception object
Under shape, for each RLC, data PDU sequence is set up to data PDU waiting for transmission in the RLC
Number mark, due to RLC be in the form of PDU clusters progress data PDU transmission, so RLC is treated
The mark of PDU cluster of the data PDU of the transmission sequence number mark value belonging to it, transmission has additional the sequence
The PDU of number mark is to receiving object.When the corresponding PDU clusters of each RLC transmission to same reception object
When, RLC carries out PDU sequence according to the mark of PDU clusters, in this way, can effectively mitigate in reception object
PDCP resource processing load.
Described device also includes：
Second sets up unit 133, for data PDU waiting for transmission to be set up into cluster end of identification, the cluster knot
Beam identification is used to characterize last that the data PDU is the PDU clusters belonging to the data PDU
PDU。
As a kind of implementation, on the basis of the PDU transmitting devices shown in Figure 14, the present invention is implemented
The PDU transmitting devices of example can also include the second determining unit 135, and second determining unit 135 is used for true
When fixed data PDU waiting for transmission is last PDU in the PDU clusters, by cluster end of identification value
For the first numerical value；, will when determining last PDU in the non-PDU clusters of data PDU waiting for transmission
Cluster end of identification value is second value；First numerical value is different from second value.
Here, still by taking foregoing application scenarios as an example, current multiple RLC need to same reception pair altogether
As 300 PDU of transmission, provide that every 100 PDU are classified as a PDU cluster, i.e., the 1st~100 PDU
Belong to the 1, the 101st~200 PDU of cluster and belong to cluster 2, the 201st~300 belongs to cluster 3, and RLC 1 is responsible for cluster 1
Transmission, RLC 2 is responsible for the transmission of cluster 2, and RLC 3 is responsible for the transmission of cluster 3.With 1~PDU of PDU in cluster 1
Exemplified by 100, first set up unit 130 set up in each PDU correspondence sequence number mark while, second increase
If unit 133 also sets up cluster end of identification, the cluster end of identification can value be corresponding numerical value, such as 0 or 1.
For 1~PDU of PDU 99, because the second determining unit 135 is defined as last PDU in non-cluster 1,
So as to be second value 0 by the equal value of cluster end of identification, it is not last that second value 0, which represents PDU,
PDU.For PDU 100, the second determining unit 135 determines that it is last PDU in cluster 1, because
And be 1 by the cluster end of identification value of the PDU.By PDU cluster end of identification come clear and definite cluster 1 whether
Transfer.By this operation for the value for carrying out cluster end of identification to PDU waiting for transmission in RLC,
The PDCP received in object can be according to the value of cluster end of identification, it is determined that whether corresponding PDU clusters are transmitted.
It should be noted that the value of the first numerical value and second value can be the unequal numerical value of any two, and
It is not limited to take 0 and 1.
It should be noted that setting a kind of realization rate that cluster end of identification is only the embodiment of the present invention, not
For limiting technical solution of the present invention, it can determine whether the PDU clusters of current transmission are tied using other modes
Beam.
The segmentation of the PDU structures and PDU based on AMD PDU that data PDU in the present embodiment is used
The schematic diagram of structure is as shown in Fig. 4~Figure 11.In Fig. 4~Figure 11, data PDU sequence number is identified by HSN
Domain represents that cluster end of identification represents by Endmaker (EM) domains.General, the length in HSN domains
For 2M× N-1 bit, M, N are the positive integer more than or equal to 1, and the length in EM domains is at least 1
Individual bit.In Fig. 4~Figure 11, illustrated by 3, N of M for 1 as example, HSN domains are accounted for
8 × N-1=8 × 1-1=7 bit, EM domains account for 1 bit.Specifically, in Fig. 4~Figure 11
The description of field and function refer to it is foregoing illustrate, do not repeat herein.The PDU transmission dresses of the embodiment
Putting to be located in RLC.It will be appreciated by those skilled in the art that EM is located at the 7th bit, HSN is located at
8th to the 14th bit is merely exemplary explanation, and the present invention does not limit EM, HSN in a data frame
Particular location.
The data based on affirmation mode (AM, Acknowledge dMode) of rlc layer shown in Figure 12
Frame structure.In fig. 12, still using HSN as 7 bits, EM is 1 bit, and each byte is 8 ratios
Specially for example, EM is located at the 7th bit, and HSN is occupied positioned at the 8th to the 14th bit, i.e. HSN
Last bit of the first row and the first six bit of the second row.In the embodiment of the present invention, EM and HSN
It can otherwise be carried in data frame, be merely illustrative here, restriction EM of the invention,
The particular locations of HSN in a data frame.
It can be seen that from Fig. 4~Figure 12, in the embodiment of the present invention, in PDU structures or PDU segmental structures
In set up HSN fields and EM fields.Wherein, HSN fields are used to represent the PDU belonging to current PDU
Cluster；EM fields are used for last PDU for characterizing PDU clusters of the current PDU belonging to PDU.RLC
According to HSN fields and EM fields, quickly PDU clusters can be ranked up, simply and effectively realize PDU
Sequence processing.
In the embodiment of the present invention, transmitting terminal carries out PDU cluster distribution, and each PDU cluster are through place
Reason is mapped as one group of RLC PDU.The RLC PDU of multi-set parallel are sent to after receiving terminal, receiving terminal RLC
The end position that EM domains determine current PDU cluster is first according to, then to the institute in PDU cluster
There are RLC PDU to be ranked up, the PDU cluster that last RLC is completed to internal sort are complete according to HSN
Into overall sequence.HSN facilitates receiving terminal to receive PDU cluster as PDU cluster unique mark
It is ranked up afterwards.
It should be noted that PDU transmitting devices provided in an embodiment of the present invention, because the device solves problem
Principle it is similar to foregoing PDU transmission methods, therefore, the implementation processes of PDU transmitting devices and implement former
Reason may refer to implementation process and the implementation principle description of preceding method, repeats part and repeats no more.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or meter
Calculation machine program product.Therefore, the present invention can using hardware embodiment, software implementation or combine software and
The form of the embodiment of hardware aspect.Moreover, the present invention can be used wherein includes calculating one or more
The computer-usable storage medium of machine usable program code (includes but is not limited to magnetic disk storage and optical storage
Device etc.) on the form of computer program product implemented.
The present invention is with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Flow chart and/or block diagram describe.It should be understood that can be by computer program instructions implementation process figure and/or side
Each flow and/or square frame in block diagram and flow and/or the knot of square frame in flow chart and/or block diagram
Close.Can provide these computer program instructions to all-purpose computer, special-purpose computer, Embedded Processor or
The processor of other programmable data processing devices is to produce a machine so that by computer or other can
The instruction of the computing device of programming data processing equipment is produced for realizing in one flow or multiple of flow chart
The device for the function of being specified in one square frame of flow and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices
In the computer-readable memory worked in a specific way so that be stored in the computer-readable memory
Instruction, which is produced, includes the manufacture of command device, and the command device is realized in one flow of flow chart or multiple streams
The function of being specified in one square frame of journey and/or block diagram or multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices, made
Obtain and perform series of operation steps on computer or other programmable devices to produce computer implemented place
Reason, so that the instruction performed on computer or other programmable devices is provided for realizing in flow chart one
The step of function of being specified in flow or multiple flows and/or one square frame of block diagram or multiple square frames.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the protection model of the present invention
Enclose.
Claims (12)
1. a kind of protocol Data Unit PDU transmission methods, it is characterised in that methods described includes：
Sequence number mark is set up to data PDU waiting for transmission in current RLC；
Transmission has additional the data PDU of the sequence number mark.
2. according to the method described in claim 1, it is characterised in that waiting for transmission in current RLC
Data PDU is set up before sequence number mark, and methods described also includes：
It is determined that the sequence number mark of data PDU described in current RLC.
3. method according to claim 2, it is characterised in that described in the current RLC of determination
Data PDU sequence number mark, including：
Determine the PDU clusters belonging to data PDU waiting for transmission；
Determine the mark of the PDU clusters；
The sequence number of the data PDU is identified into the mark as the PDU clusters.
4. the method according to any one of claims 1 to 3, it is characterised in that to current RLC
In data PDU waiting for transmission set up sequence number mark when, methods described also includes：
Cluster end of identification is set up for data PDU waiting for transmission, the cluster end of identification is used to characterize the data
PDU is last PDU of the PDU clusters belonging to the data PDU.
5. method according to claim 4, it is characterised in that the length of the sequence number mark is
2M× N-1 bit, M, N are the positive integer more than or equal to 1, and the length of the cluster end of identification is extremely
Few 1 bit.
6. method according to claim 5, it is characterised in that the M=3.
7. a kind of PDU transmitting devices, it is characterised in that described device includes：
First sets up unit, for setting up sequence number mark to data PDU waiting for transmission in current RLC；
First transmission unit, the data PDU of the sequence number mark is had additional for transmitting.
8. device according to claim 7, it is characterised in that described device also includes：
First determining unit, for determining that the sequence number of data PDU described in current RLC is identified.
9. device according to claim 8, it is characterised in that first determining unit, is additionally operable to：
Determine the PDU clusters belonging to data PDU waiting for transmission；
Determine the mark of the PDU clusters；
The sequence number of the data PDU is identified into the mark as the PDU clusters.
10. the device according to any one of claim 7 to 9, it is characterised in that described device is also wrapped
Include：
Second sets up unit, and for setting up cluster end of identification for data PDU waiting for transmission, the cluster terminates mark
Know last PDU for characterizing PDU clusters of the data PDU belonging to the data PDU.
11. device according to claim 10, it is characterised in that the length of the sequence number mark is
2M× N-1 bit, M, N are the positive integer more than or equal to 1, and the length of the cluster end of identification is extremely
Few 1 bit.
12. device according to claim 11, it is characterised in that the M=3.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108494490A (en) * | 2018-04-09 | 2018-09-04 | 湖北邮电规划设计有限公司 | A kind of wireless 5G forward pass and the network-building method of other service integrations carrying |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101043301A (en) * | 2006-03-22 | 2007-09-26 | 华为技术有限公司 | Data rearrangement and recombination method in wireless communication system and its base station |
| CN101374331A (en) * | 2007-08-20 | 2009-02-25 | 华为技术有限公司 | Method, system and equipment for configuring wireless link control layer sequence number |
| CN101848489A (en) * | 2009-03-25 | 2010-09-29 | 中兴通讯股份有限公司 | Sending/receiving method and device of PDU (Protocol Data Unit) |
| CN102356589A (en) * | 2009-03-16 | 2012-02-15 | 高通股份有限公司 | Layer two segmentation techniques for high data rate transmissions |
-
2016
- 2016-02-18 CN CN201610091434.6A patent/CN107094123A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101043301A (en) * | 2006-03-22 | 2007-09-26 | 华为技术有限公司 | Data rearrangement and recombination method in wireless communication system and its base station |
| CN101374331A (en) * | 2007-08-20 | 2009-02-25 | 华为技术有限公司 | Method, system and equipment for configuring wireless link control layer sequence number |
| CN102356589A (en) * | 2009-03-16 | 2012-02-15 | 高通股份有限公司 | Layer two segmentation techniques for high data rate transmissions |
| CN101848489A (en) * | 2009-03-25 | 2010-09-29 | 中兴通讯股份有限公司 | Sending/receiving method and device of PDU (Protocol Data Unit) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108494490A (en) * | 2018-04-09 | 2018-09-04 | 湖北邮电规划设计有限公司 | A kind of wireless 5G forward pass and the network-building method of other service integrations carrying |
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Application publication date: 20170825 |