CN104796233B - A kind of re-transmission method and the communication equipment for transmitting again - Google Patents
A kind of re-transmission method and the communication equipment for transmitting again Download PDFInfo
- Publication number
- CN104796233B CN104796233B CN201510188952.5A CN201510188952A CN104796233B CN 104796233 B CN104796233 B CN 104796233B CN 201510188952 A CN201510188952 A CN 201510188952A CN 104796233 B CN104796233 B CN 104796233B
- Authority
- CN
- China
- Prior art keywords
- data block
- mac layer
- transmission
- layer data
- mac
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1835—Buffer management
- H04L1/1838—Buffer management for semi-reliable protocols, e.g. for less sensitive applications such as streaming video
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/04—Error control
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Mobile Radio Communication Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
A kind of re-transmission method and the communication equipment for transmitting again are described, this method comprises: receiving the data block (1001) for corresponding to protocol layer (126) from transmission equipment (104) and being transmitted in the protocol layer (136) in receiving device (102)；Determine that (305) can not decode the data block；(315) are determined even if the corresponding protocol layer in the transmission equipment transmits the protocol layer of the data block into the receiving device one or manyly, the data block being capable of decoded possibility also very little；And (316) message is transmitted to the corresponding protocol layer in the transmission equipment, so that the corresponding protocol layer in the transmission equipment stops the transmission of the data block by the protocol layer in the receiving device.
Description
The application be the applying date be on February 18th, 2009, application No. is 200980156961.9, it is entitled that " data are again
The divisional application of the Chinese invention patent application of transfer scheme ".
Technical field
The present invention relates to mobile communication fields.More specifically, aspect of the invention is related to changing in radio access network
Into data retransmission scheme.
Background technique
Again transmission plan is important the communication by insecure communication link.For example, if the routing of (a) chain is logical
Several links composition of forward node (for example, router or gateway) connection is crossed, and one of those forward node cannot forward
Data, or (b) the modified link-quality of link (for example, link is radio link) and the quality prevent expected receive
Device is correctly decoded the data of transmission, then communication link can be insecure.It is contemplated herein that the case where be latter case.Several sides
Formula be designed to offset radio link quality variation, this include again transmission and conveyer power control, channel coding and its
Combination.
The transmission plan base again that some networks (for example, high-speed packet access (HSPA) and long term evolution (LTE)) use
Stop and wait agreement in the N channel realized in media access control (MAC) layer.In such agreement in LTE environment, MAC
Layer transmits N number of piece of coded data in N number of continuous subframes.To the time of (N+1) a subframe, the MAC layer in receiver is answered
Have responded to whether it is able to detect and decodes the first data block.The reason of N number of parallel procedure processing data is to allow receiver
Having time detection, decoding and report positive acknowledgment (ACK) or negative confirmation (NACK).Individual bit can be used in ACK and NACK
Transmission.
If receiver indicates that the first data block cannot be decoded (for example, receiver transmits NACK to conveyer) by it,
MAC layer in conveyer " will retransfer " data block in (N+1) a subframe.That is, MAC layer will be in (N+
1) data block is transmitted again in a subframe, as it is new data block, and/or transmission helps MAC layer solution in receiver
The information (for example, the other coded-bits for reinforcing the coding of data block) of the code data block.
Again the maximum allowable number K transmitted is configured by more higher protocol layer.If data block K times again transmit after not
It being correctly decoded, then NACK is sent to automatic repeat request (ARQ) process of radio link control (RLC) layer in conveyer,
So that the data block (that is, the size of data block can be different) may can be retransferred in rlc layer after a certain segmentation again.
Rlc layer is configured to firmly believe that data block is orderly transported to higher.This means that if data block lacks, then just
True received data block must not be not to wait for, until the data block of missing arrived.If the quantity N of channel and transmission attempt again
Maximum times K it is very big, then this delay can be quite big.Therefore, if assigning the code protection being used for transmission and data transfer rate and nothing
The matching of line electricity link circuit condition is poor, then before data block is properly received, RLC may wait a rapid lapse of time (for example, at least (N*k
+ 1) a subframe+RLC handles the time).
Desirably overcome the improved transmission side again of the above-mentioned and/or other disadvantage in conventional transmission plan again
Case.
Summary of the invention
On the one hand, the present invention provides a kind of re-transmission method.In some embodiments, the method the following steps are included:
(1) protocol layer (for example, MAC layer) in receiver (for example, base station or mobile terminal) is received from conveyer (for example, base station
Or mobile terminal) in correspond to protocol layer (for example, MAC layer) transmission data block；(2) determination cannot decode the data block；(3)
Even if determining that the data block is retransmitted to the protocol layer in receiver once or several times by the correspondence protocol layer in conveyer,
It can not can decode the data block；(4) the correspondence protocol layer from the protocol layer in receiver into conveyer is sent with signal
First feedback information, instruction have received the data block；And the correspondence agreement of (5) from the protocol layer in receiver into conveyer
Layer sends the second feedback information related with the data block with signal, and the second feedback information includes the receiving time with the data block
Related information simultaneously indicates that the data block is aborted (abort).
In some embodiments, determine that the step of can not capable of decoding the data block includes calculating from the primary of conveyer
Or value related with the probability of decoded data block after transmitting again several times.The calculating step can include: determining or estimation and nothing
The related value of line electricity situation；And it is based at least partially on the value for determining or estimating, calculating has with the probability for decoding the data block
The value of pass.In some embodiments, value related with radio condition is the value of identification signal interference (SIR) ratio (for example, average
The estimation of SIR).
In some embodiments, the step that calculates includes monitoring soft bit decision metric and the soft bit using monitoring
Whether decision metric is attempted to approach successfully to determine to decode.The step that calculates may also include using the soft bit judgement degree monitored
The decoding for measuring to determine failure attempts whether attempt than previous decoding closer to success.
In some embodiments, it includes second anti-that the step of sending the second feedback information with signal, which includes to conveyer transmission,
The channel status reporting of feedforward information.In some embodiments, the second feedback information includes dedicated control element (for example, dedicated MAC
Control element), and the first feedback information is formed by indicating the individual bit of ACK or NACK.
In some embodiments, after the first feedback information is received by conveyer, the second feedback information is received by conveyer,
And the second feedback information includes receiving time information, and protocol layer is from conveyer in the receiving time information instruction receiver
Corresponding protocol layer receives the time where the data block.Conveyer can be configured to be determined using receiving time information with second instead
The related data block of feedforward information.Conveyer and receiver can have common time reference on protocol level.It is sent with signal
When the second feedback information related with data block, preferably also uses and the first feedback information of identical block is sent out with signal
Send ACK (for example, the first feedback information can be formed by indicating the individual bit of ACK).
In some embodiments, conveyer is configured to by transmitting the data block again (as it is new data block)
And/or transmission information related with the data block retransfers this to help the protocol layer in receiver for data block decoding
Data block.Advantageously, the transformat for transmitting the data block again is applicable to determining radio condition.
In some embodiments, response receives the second feedback information, the correspondence protocol layer of conveyer into conveyer the
Two protocol layers (for example, rlc layer) notify the data block to be aborted, and the identification of this second protocol layer and suspension in the response
The related other data blocks of data block；In some embodiments, the data block of the suspension belongs to some Protocol layer data unit, and
And the identification of second protocol layer belongs to all other data block of the Protocol layer data unit.Protocol layer data unit can be by
Two protocol layers are received from the third protocol layer (for example, network layer) on conveyer side.
On the other hand, the present invention provides a kind of improved communication device.In some embodiments, which includes:
Receiver；Conveyer；Data-storage system；And data processing system, the system can operate with: determination can not be decoded from biography
The data block for sending protocol layer in device to be transmitted to protocol layer in communication device；Even if determining the protocol layer in conveyer by the data block
Communication device is retransmitted to be also impossible to that the data block can be decoded once or several times；Protocol layer signal into conveyer
The first feedback information is sent, instruction has received the data block；And response can not can decode the determination of the data block, Xiang Chuan
The protocol layer in device is sent to send the second feedback information related with the data block with signal, the second feedback information includes and the data
The related information of the receiving time of block simultaneously indicates that the data block is aborted.
Above and other aspect and embodiment are described with reference to the accompanying drawings.
Detailed description of the invention
Attached drawing is incorporated herein, and forms part of specification, shows various embodiments of the present invention, and with
Description together, is further used for explaining the principle of the present invention and those skilled in the relevant art is enabled to manufacture and use this hair
It is bright.Similar reference numeral indicates identical or functionally similar element in figure.
Fig. 1 shows a part of mobile communications network.
Fig. 2 shows the functional block diagrams of the functional block diagram of some components of UE and some components of base station.
Fig. 3 is the flow chart for showing process according to some embodiments of the present invention.
Fig. 4 is the flow chart for showing process according to some embodiments of the present invention.
Fig. 5 is the flow chart for showing process according to some embodiments of the present invention.
Fig. 6 is the functional block diagram of UE according to some embodiments of the invention.
Fig. 7 is the functional block diagram of base station according to some embodiments of the invention.
Fig. 8 is shown to pass by and constant and use Chase merging (trial every time at any time according to the radio condition of SIR
When retransfer identical data block) when each transmission attempt block error probability.
Fig. 9 shows the link performance modeling for being divided into demodulator and decoder modeling.
Figure 10 shows the functional block diagram of the functional block diagram of some components of UE and some components of base station.
Specific embodiment
Referring now to fig. 1, Fig. 1 shows a part of mobile communications network 100.As shown in Figure 1, mobile terminal 102 is (also referred to as
For user equipment (UE) 102) allow users to the service that the core network 106 through 104 access carrier of base station provides.Such as this
Base station 104 well known to the technical staff of field handles the wireless radio transmission and reception in one or more cells (i.e. geographic area).
In LTE environment, base station 104 is known as evolution NodeB (eNB).
Referring now to Fig. 2, Fig. 2 shows the function of the functional block diagram of some components of UE 102 and some components of base station 104
It can block diagram.As shown in Fig. 2, base station 104 includes rlc layer 122 (a), MAC layer 126 (a) and physical layer 130 (a).Similarly, UE
102 include rlc layer 122 (b), MAC layer 126 (b) and physical layer 130 (b).Although it is not shown, but may have on rlc layer 122
One or more highers.
Also as shown in Fig. 2, the MAC layer in a communication device of referred to as transmission device or conveyer is (for example, UE 102
MAC layer 122 (b) or MAC layer 122 (a)) coded data can be transmitted to another communication dress of referred to as reception device or receiver
MAC layer (for example, MAC layer 122 (a) or MAC layer 122 (b)) in setting.MAC layer in receiver is configured to detect and decode to pass
The coded data sent, and transmit a response to the MAC layer in conveyer.For example, number is successfully decoded in the MAC layer response in receiver
According to and transmit MAC layer of the positive acknowledgment (ACK) into conveyer, but if receiver detects data and cannot solve yardage
According to, then, and MAC layer of MAC layer transmission negative confirmation (NACK) into conveyer in receiver.Under normal circumstances, ACK and NACK
It is transmitted using individual bit.
It is improved transmission process 300 again shown according to some embodiments of the present invention referring now to Fig. 3, Fig. 3
Flow chart, the process execute (for example, MAC layer 122 (a) or MAC layer 122 (b)) by the MAC layer 122 in receiver.Process 300
Start in step 302, in this step, MAC layer in receiver receive MAC layer transmits from conveyer data block (or with
The related data of data block).In step 304, MAC layer is attempted to decode data block using received data in step 302.?
In step 305, MAC layer determines whether it is successfully decoded data block.If it is, process 300 proceeds to step 308, in the step
In rapid, MAC layer of the MAC layer into conveyer transmits ACK.Otherwise, the MAC layer in receiver passes the MAC layer into conveyer
Send NACK (step 314) or abort message (316).
For example, in some embodiments, if the MAC layer in receiver cannot decode data block, process 300 continues
To step 312, in this step, MAC layer calculated value P simultaneously compares P and threshold value T.If P is less than T, process 300 proceeds to step
Rapid 316, in this step, MAC layer connection closed message, designation date block is aborted, that is, instruction MAC layer determines that MAC layer will
Enough decoded data blocks are impossible；Otherwise, process 300 proceeds to step 314, and in this step, MAC layer transmits NACK.
In some embodiments, abort message is made of dedicated control element (for example, dedicated MAC control element).In UE
Be in the other embodiments of receiver, abort message channel state report (for example, channel quality indicator (CQI) report or
Other channel status reportings) transmission.
In some embodiments, the HARQ procedure of decoding data is attempted in the MAC layer of abort message instruction receiver.This letter
Breath can be by the data block associated with abort message for identification of the MAC layer in conveyer.Abort message can also be comprising knowing
Other HARQ procedure fails the information of the time of decoded data block, which can be by the MAC layer in conveyer for identification in
The only associated data block of message.
In some embodiments, in step 316, other than connection closed message, MAC layer transmits ACK also to promote to pass
The transmission for sending the MAC layer in device to stop data block.This feature is shown in FIG. 10, this illustrates receiver 102 to conveyer 104
Connection closed message 1002 and ACK 1003 receive coded data block 1001, cannot decode coded data block 1001 and really to respond
P is determined less than T.In some embodiments, ACK is not sent, and sends NACK.
As noted above, in step 312, the MAC layer calculated value P in receiver.In some embodiments, P is solution
Code probability.For example, P can be indicate receiver in MAC layer will in conveyer MAC layer K transmission attempt again
The probability (K > 0) of interior decoded data block.If P is less than predefined thresholds T, this means that MAC layer continues to connecing in conveyer
It is useless for receiving the MAC layer in device and transmitting data block or information to help MAC layer decoded data block in receiver.
In some embodiments, P is the function of decoder metric (for example, soft decoder metric), decoder metric instruction
In receiver MAC layer from be successfully decoded data block have it is how close.For example, in some embodiments, for data block every time again
Transmission, MAC layer (1) generate and carrying recorded decoding tolerance amount, instruction MAC layer from be successfully decoded data block have it is how close, and (2) use
This information determines P.For example, by recording such decoder metric, the MAC layer of receiver can by check transmission attempt it
Between soft decoder metric increase, determine whether the decoding of primary transmission attempt again more connects than the preceding decoding once transmitted again
Nearly success.Measurement growth behavior is whether the indicator that possible data will be finally correctly decoded.Slow increase can be considered as instruction
Even radio condition is still inadequate for being correctly decoded after many transmission attempts.Fast increase can be considered as designation date
It will finally be correctly decoded.Correspondingly, value P can be the function of decoder metric variation.
In other embodiments, P (decoding probability) is also possible to the function of value related with radio condition.For example, with
The related value of radio condition can be value of the identification signal interference than (SIR) or the value obtained from it (for example, identification is average
The value of the estimation of SIR).For example, can create according to the radio condition of SIR and P, (or block error probability (BLEP), this is mutual
Benefit amount-is that is, BLEP=1-P) relevant model.This class model can be modulated and be encoded detailed by using in emulator and specification
Thin description is to obtain.It is related to BLEP that SIR can be distributed (in more general terms, statistical attribute of SIR) by more accurate model.?
In one embodiment, P is equal to the estimation for being transmitted several times and attempting upper effective SIR, which can be based on the transmission attempt from completion
Estimation SIR statistics.For example, if K1Average SIR in < K transmission attempt is less than SIRthres, then decoding probability is considered
It is insufficient after K transmission attempt.In an example related with particular transmission format in Fig. 8, if average SIR is less than
Or being equal to -2dB, then prediction decoding probability is insufficient.
In the decoding of data after trial is transmitted several times in consideration, will model and be separated into two parts is that beneficial-a part takes
Certainly in modulation, a part depends on channel coding.After each transmission attempt coding gain it is different and when modulating identical, this is suitable
?.Fig. 9 shows the modeling in an example embodiment.For each of data piece, by being connect from the mapping of SINR to determine
The bit information of receipts.One such mapping is the channel capacity (C=log according to Shannon2(1+SINR) [bit/symbol]).With
Afterwards, received bit information rate is determined as the linear average in consecutive data block.This arrives block mistake in decoder model
It is used in second mapping of probability.Received bit information rate is linear, it is contemplated that the received bit of past transmission attempt
Information bit rate.This fact is conducive to the letter after the transmission attempt that for example hypothesis radio condition is subsequent in the case where remaining unchanged
The prediction of the fixed rate of interest.
It is the process for showing the process 400 in accordance with some embodiments executed by transmission MAC layer referring now to Fig. 4, Fig. 4
Figure.Process 400 can transmit MAC layer from higher (for example, rlc layer) and receive data since step 402, in this step, and
The higher has received data cell from higher (for example, network layer).In step 404, MAC layer is by data block (for example, coming
From the coded data of data cell) it is transmitted to the MAC layer in receiver.In a step 406, the MAC layer in conveyer, which receives, comes
The feedback of the related data block of MAC layer from receiver.If feedback is ACK, process 400 returns to step 402.If anti-
Feedback is NACK, then process 400 returns to step 408.
In a step 408, transmission MAC layer " retransfers " data block.That is, for example, transmission MAC layer transmits again
The data block transmitted in step 404, as it is new data block, and/or transmission information is to help the MAC layer in receiver
The data block (for example, the other coded-bits for reinforcing the coding of data block) sent before decoding.
In step 410, transmission MAC layer receives the feedback of the MAC layer in receiver.If feedback is ACK, process
400 then return to step 402.If feedback is NACK, process 400 then returns to step 408.If feedback is to stop
Message, then process 400 proceeds to step 412.Above with reference to described in step 316, the MAC layer in receiver may be can be transmitted and list
Related two feedback informations (for example, abort message and ACK) of a data block.It is, thus, possible to repeat step 410, and pass
Send the MAC layer in device that need not be further transmitted anything MAC layer into receiver.Therefore, the MAC layer in conveyer can be from
Correspondence MAC layer reception the first feedback message (for example, ACK) and the second feedback message (for example, abort message) in receiver, two
A message receives and handles data block by the MAC layer transmission in receiver to respond it.In some embodiments, the first feedback
Message receives before the second feedback message.
In step 412, response receives abort message, and the MAC layer in conveyer determines data related with abort message
Block.As described above, abort message may include time reference for convenient for this determination.Time reference is beneficial to the MAC in conveyer
MAC layer in layer and receiver has the determination in the embodiment of common time base.MAC layer and receiver in conveyer
In MAC layer have common time base other embodiments in, the MAC layer in conveyer can be based on the MAC layer in conveyer
Receive abort message where time come determine by receiver MAC layer stop data block.
In step 414, the MAC layer in conveyer has been aborted to the data block of higher notice identification, and/or is used
Different transpost formats (for example, the transformat for being suitable for current radio condition) or segmentation are come the data block that retransfers.Have
The data block (for example, the data block for belonging to same data unit) of pass can also be aborted in step 414.
It is the process for showing the process 500 in accordance with some embodiments executed by transmission MAC layer referring now to Fig. 5, Fig. 5
Figure.If process proceeds to step 502 rather than is subsequently returning to outside step 408, mistake in addition to receiving NACK in step 410
Journey 500 is identical as process 400.In step 502, transmission MAC layer determines whether the data that retransfer are useless (that is, repeating step
408 will be useless).If MAC layer determines that it will not be useless, process returns to step 408, and otherwise, it proceeds to step
Rapid 512.In step 512, transmission MAC layer has determined suspension to higher notice, and/or uses different transpost formats or segmentation
Come the data that retransfer (related data block can also be aborted).In some embodiments, transmission MAC layer is based on transmitting from receiver
Radio condition report (for example, channel quality indicator (CQI) report) determine whether the data that retransfer will be useless.Example
Such as, there are sizable deteriorations for radio condition report instruction radio channel quality, and then, MAC layer, which can determine, to retransfer
Data are useless.
It is the functional block diagram of UE 102 according to some embodiments of the present invention referring now to Fig. 6, Fig. 6.As shown, UE
102 may include data processing system 602 (such as one or more microprocessors), data-storage system 606 (for example, one or
Multiple non-volatile memory devices) and storage system 606 on the computer software 608 that stores.Configuration parameter 610 is (for example, above
The threshold value referred to) it may also be stored in storage system 606.UE 102 further includes transmission/reception (Tx/Rx) circuit 604 to be used for
It transfers data to base station 104 and receives the data from base station 104.Software 608 is configured, so that executing in processor 602 soft
When part 608, UE 102 executes above-mentioned steps (for example, the step of flow chart above with reference to shown in Fig. 3,4 and/or 5 describes).
For example, software 608 can include: (1) data block of protocol layer transmission from conveyer cannot be decoded for determination
Computer instruction；(2) even if the protocol layer being used in determining conveyer retransfers, data block is also impossible to energy once or several times
Enough decode the computer instruction of the data block；(3) for sending the first feedback information by protocol layer of the signal into conveyer
To indicate computer instruction that the data block is received；And (4) are used for the correspondence protocol layer hair by signal into conveyer
Send the second feedback information related with data block the computer instruction of the data block can not can be decoded in response to determining, the
Two feedback informations include information related with the receiving time of the data block and indicate that the data block is aborted.
It is the functional block diagram of base station 104 according to some embodiments of the present invention referring now to Fig. 7, Fig. 7.As shown,
Base station 104 may include data processing system 702 (such as one or more microprocessors), data-storage system 706 (for example, one
A or multiple non-volatile memory devices) and storage system 706 on the computer software 608 that stores.Configuration parameter 710 (for example,
Above mentioned threshold value) it may also be stored in storage system 706.Base station 104 further include for transfer data to UE 102 and from
It its transmission/reception (Tx/Rx) circuit 704 for receiving data and for example core network 106 and is received from it for transferring data to
Transmission/reception (Tx/Rx) circuit 705 of data.
Although various embodiments of the present invention have described above, it should be appreciated that they are intended only as example rather than limit
And it provides.Therefore, range of the invention and range should not be limited by any of the above-described exemplary embodiments.
In addition, though process shown in described above and figure is shown as continuous step, but does so and be intended merely to
Bright reason.Correspondingly, it is contemplated that some steps can be added, some steps can be omitted, and the sequence of step can be rearranged, with
And some steps can be executed parallel.
Claims (10)
1. a kind of re-transmission method, this method comprises:
Protocol layer in receiving device receives media access control (MAC) layer data block from transmission equipment；
Determine that the decoding of the MAC layer data block is unsuccessful；
The request of transmission again of the request again transmitted of the instruction for the MAC layer data block is sent to the transmission equipment；
The transmission again of the MAC layer data block is received from the transmission equipment；
After receiving and transmitting again described in the MAC layer data block, determine that the receiving device can not decode the MAC
Layer data block and determining further transmit again can not lead to being successfully decoded for the MAC layer data block；And
Indicate that the transmission equipment should stop the MAC layer data by the protocol layer transmission in the receiving device
The message of block further transmitted again is to the correspondence protocol layer in the transmission equipment, wherein the instruction is in the MAC
It is sent in the maximum allowable quantity of layer data block transmitted again.
2. according to the method described in claim 1, wherein further transmission can not lead to the MAC layer number again for the determination
It is made according to the soft decoding metrics based on one or more that are successfully decoded of block.
3. according to the method described in claim 1, wherein the instruction transmission equipment should stop the MAC layer data block
The message further transmitted again be MAC layer message.
4. according to the method described in claim 1, described in wherein confirmation (ACK) and the instruction transmission equipment should stop
The message of MAC layer data block further transmitted again is sent together.
5. according to the method described in claim 1, wherein the protocol layer in the receiving device and it is described transmission set
Each of the corresponding protocol layer in standby is MAC layer.
6. a kind of communication equipment for transmitting again, the equipment include:
For the protocol layer in receiving device, the device of media access control (MAC) layer data block is received from transmission equipment；
For determining the unsuccessful device of decoding of the MAC layer data block；
Transmission again for sending from the request again transmitted of the instruction for the MAC layer data block to the transmission equipment is asked
The device asked；
For receiving the device of the MAC layer data block transmitted again from the transmission equipment；
For determining that the receiving device can not decode institute after receiving and transmitting again described in the MAC layer data block
It states MAC layer data block and determines that further transmission can not lead to the device of the MAC layer data block being successfully decoded again；
And
For indicating that the transmission equipment should stop the MAC layer by the protocol layer transmission in the receiving device
The device of correspondence protocol layer of the message of data block further transmitted again extremely in the transmission equipment, wherein the instruction
It is sent in the maximum allowable quantity of the MAC layer data block transmitted again.
7. communication equipment according to claim 6, wherein further transmission can not lead to the MAC again for the determination
The soft decoding metrics based on one or more that are successfully decoded of layer data block are made.
8. communication equipment according to claim 6, wherein the instruction transmission equipment should stop the MAC layer number
The message further transmitted again according to block is MAC layer message.
9. communication equipment according to claim 6, wherein confirmation (ACK) should stop with the instruction transmission equipment
The message of the MAC layer data block further transmitted again is sent together.
10. communication equipment according to claim 6, wherein the protocol layer in the receiving device and in the biography
Sending each of the corresponding protocol layer in equipment is media access control (MAC) layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510188952.5A CN104796233B (en) | 2009-02-18 | 2009-02-18 | A kind of re-transmission method and the communication equipment for transmitting again |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510188952.5A CN104796233B (en) | 2009-02-18 | 2009-02-18 | A kind of re-transmission method and the communication equipment for transmitting again |
| CN200980156961.9A CN102326425B (en) | 2009-02-18 | 2009-02-18 | Data retransmission scheme |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980156961.9A Division CN102326425B (en) | 2009-02-18 | 2009-02-18 | Data retransmission scheme |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104796233A CN104796233A (en) | 2015-07-22 |
| CN104796233B true CN104796233B (en) | 2019-04-26 |
Family
ID=53673687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510188952.5A Expired - Fee Related CN104796233B (en) | 2009-02-18 | 2009-02-18 | A kind of re-transmission method and the communication equipment for transmitting again |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104796233B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109921884B (en) * | 2017-12-13 | 2022-04-12 | 华为技术有限公司 | Data receiving and transmitting method, device and communication system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1524364A (en) * | 2001-05-18 | 2004-08-25 | ��˹��ŵ�� | Hybrid automatic repeat request (HARQ) scheme with in-sequence delivery of packets |
| CN101034953A (en) * | 2006-03-06 | 2007-09-12 | 西门子通信技术（北京）有限公司 | Method for carrying out data transmission using the low-density parity check code |
| CN101053194A (en) * | 2004-11-03 | 2007-10-10 | 松下电器产业株式会社 | Harq protocol optimization for packet data transmission |
| CN101364941A (en) * | 2007-08-08 | 2009-02-11 | 索尼株式会社 | Content playback device, content playback method, computer-readable storage medium, and content playback system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6671849B2 (en) * | 2002-05-14 | 2003-12-30 | Motorola, Inc. | Reliability-based type-II hybrid ARQ scheme |
| JP4351158B2 (en) * | 2002-07-01 | 2009-10-28 | テレフオンアクチーボラゲット エル エム エリクソン（パブル） | Scheduling method for iterative decoder |
-
2009
- 2009-02-18 CN CN201510188952.5A patent/CN104796233B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1524364A (en) * | 2001-05-18 | 2004-08-25 | ��˹��ŵ�� | Hybrid automatic repeat request (HARQ) scheme with in-sequence delivery of packets |
| CN101053194A (en) * | 2004-11-03 | 2007-10-10 | 松下电器产业株式会社 | Harq protocol optimization for packet data transmission |
| CN101034953A (en) * | 2006-03-06 | 2007-09-12 | 西门子通信技术（北京）有限公司 | Method for carrying out data transmission using the low-density parity check code |
| CN101364941A (en) * | 2007-08-08 | 2009-02-11 | 索尼株式会社 | Content playback device, content playback method, computer-readable storage medium, and content playback system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104796233A (en) | 2015-07-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10700823B2 (en) | Signal transmission method and apparatus for user equipment in mobile communication system | |
| CN100409605C (en) | Channel quality measurement in data transmission using hybrid ARQ | |
| US8050248B2 (en) | Retransmission in wireless communication systems | |
| US8295159B2 (en) | Timer poll retransmission expiry in a wireless communication system | |
| EP2238705B1 (en) | Harq operation method for retransmitted data | |
| US8787384B2 (en) | Pre-emptive acknowledgement for data transmission in a communication system | |
| EP1965534B1 (en) | Apparatus and method for transmitting a control message in a wireless communication system using relaying | |
| EP2086148B1 (en) | Method for sending status information in mobile telecommunications system and receiver of mobile telecommunications | |
| CN107104764B (en) | Method for transmitting status protocol data unit in mobile communication system | |
| TWI486016B (en) | Communicating terminal and method of transmitting status report from receiving terminal to transmitting terminal | |
| US20100257423A1 (en) | Method of performing arq procedure for transmitting high rate data | |
| WO2010086156A1 (en) | Efficient packet data unit transmissions and re-transmissions involving a relay node | |
| CN102326425B (en) | Data retransmission scheme | |
| CN104796233B (en) | A kind of re-transmission method and the communication equipment for transmitting again | |
| CN113872736B (en) | Data transmission method, device, equipment and storage medium | |
| FI20195875A1 (en) | Joint link adaptation for downlink control channel and data channel for wireless networks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190426 Termination date: 20210218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |