CN106550470A - A kind of data transmission method and device - Google Patents
A kind of data transmission method and device Download PDFInfo
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- CN106550470A CN106550470A CN201510601467.6A CN201510601467A CN106550470A CN 106550470 A CN106550470 A CN 106550470A CN 201510601467 A CN201510601467 A CN 201510601467A CN 106550470 A CN106550470 A CN 106550470A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1221—Wireless traffic scheduling based on age of data to be sent
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
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Abstract
The invention provides a kind of data transmission method and device, wherein, data transmission method includes：Feedback information according to receiving judges WIFI side datas whether transmission success；If it is not, the WIFI side datas are dispatched to LTE channels then being retransmitted.The scheme that the present invention is provided is by judging WIFI side datas whether transmission success according to the feedback information that receives, if not, WIFI side datas are dispatched to into the mode retransmitted by LTE channels then, the data transmission success of WIFI-LTE paradigmatic systems is ensure that, the data transmission credibility of WIFI-LTE paradigmatic systems is improve.
Description
Technical field
The present invention relates to wireless technical field, particularly relates to a kind of data transmission method and device.
Background technology
At present, RAN#67 plenary sessions have passed through radio link set and network and have strengthened that (WIFI-LTE is polymerized, WI
" LTE-WLAN Radio Level Integration and Interworking Enhancement ") project verification
(RAN level document RP-150510), LTE and dual link skill of the WIFI polymerization methodses based on Release12
Art, data parallel transmission on frequency range and unauthorized frequency range is authorized, the data transfer in unauthorized frequency range are followed
WIFI mechanism, authorizes the data transfer in frequency range to follow LTE mechanism.To realize to the distribution of data to be transferred and
The convergence of receiving data, increases user in PDCP (PDCP) layer of LTE protocol framework
Face polymerizable functional.By newly-increased Xw interactive interfacing message (research report between LTE eNB and WIFI AP
Accuse TR 37.870).Based on the research of current 3GPP, the protocol infrastructure of WIFI-LTE polymerizations as shown in figure 1,
Wherein, RLC is wireless chain control layer, and MAC is media access control layer, and PHY is physical layer LLC
For logical link control layer.
For LTE and WIFI, receiving terminal is properly received meeting feeding back ACK/NACK (success/failure) after data,
When transmitting terminal does not receive feedback information or feedback information is NACK, open and retransmit.If reached most
Big number of retransmissions (N), transmitting terminal is still not received by feedback information or feedback information remains NACK
When, then transmitting terminal abandons current data packet, carries out the transmission of next packet.
Based on existing protocol, WIFI and LTE completes to retransmit in each self-channel respectively, i.e., number on WIFI channels
Complete in WIFI channels according to retransmitting, authorize the data of frequency range LTE to retransmit and authorizing frequency range LTE to complete.But
It is that, due to the competition working mechanism of WIFI, WIFI system transfers quality there is no guarantee that.By LTE-WIFI
The data transfer that polymerization methodses are carried out can cause the decline of global reliability due to the low reliability of WIFI sides.
The content of the invention
It is an object of the invention to provide a kind of data transmission method and device, solve in prior art
The relatively low problem of the data transmission credibility of LTE-WIFI paradigmatic systems.
In order to solve above-mentioned technical problem, the embodiment of the present invention provides a kind of data transmission method, is applied to
Transmitting terminal in LTE-WIFI aggregation scenes, including：
Feedback information according to receiving judges WIFI side datas whether transmission success；
If it is not, the WIFI side datas are dispatched to LTE channels then being retransmitted.
Alternatively, the feedback information that the basis is received judge WIFI side datas whether transmission success the step of
Including：
PDCP data packet sequence row number PDCP PDU SN state reports according to receiving are obtained
To the PDCP PDU SN of data is activation success or failure；
Corresponding WIFI side datas are obtained according to the PDCP PDU SN of the data is activation success or failure is
No transmission success.
Alternatively, the feedback information that the basis is received judge WIFI side datas whether transmission success the step of
Including：
Status information is sent according to the packet for receiving and corresponding PDCP PDU SN judge WIFI sides number
The transmission success according to whether.
Alternatively, when the transmitting terminal is base station, the WIFI side datas are dispatched to into LTE channels described
When being retransmitted or retransmitting the success of WIFI side datas by LTE channels, the data transmission method also includes：
Notify that WIFI AP stop retransmitting the data of bust thiss with signaling method.
Alternatively, when the transmitting terminal is terminal, the WIFI side datas are dispatched to into LTE channels described
When being retransmitted or retransmitting the success of WIFI side datas by LTE channels, the data transmission method also includes：
Stop the operation of data is retransmitted by WIFI channels.
Alternatively, the feedback information that the basis is received judge WIFI side datas whether transmission success the step of
Including：
Feedback information according to being received by LTE channels and WIFI channels judges whether WIFI side datas pass
Defeated success；Or,
Feedback information according to being received by LTE channels judges WIFI side datas whether transmission success；
Wherein, the feedback information for being received by LTE channels includes the feedback information of LTE sides, and WIFI
The feedback information of side.
Alternatively, the basis judges WIFI by the feedback information that LTE channels and WIFI channels are received
Side data whether transmission success the step of include：
Obtain the feedback letter of WIFI sides in the feedback information received by LTE channels and WIFI channels
Breath；
WIFI side datas whether transmission success is judged according to the feedback information of the WIFI sides for getting；
When feedback information in arbitrary WIFI sides is designated as successfully, it is determined that with corresponding to the feedback information
WIFI side data bags send successfully.
Alternatively, when the transmitting terminal is base station, the basis passes through LTE channels and WIFI channels are received
To feedback information judge WIFI side datas whether transmission success the step of include：
According to by LTE channels with data signal mode and by WIFI channels with signaling method receive it is anti-
Feedforward information judges WIFI side datas whether transmission success；
The basis judges WIFI side datas whether transmission success by the feedback information that LTE channels are received
Step includes：
Whether WIFI side datas are judged with the feedback information that data signal mode is received according to by LTE channels
Transmission success.
Alternatively, when the transmitting terminal is terminal, the basis passes through LTE channels and WIFI channels are received
To feedback information judge WIFI side datas whether transmission success the step of include：
According to the feedback information judgement received in data signal mode by LTE channels and WIFI channels
WIFI side datas whether transmission success；
The basis judges WIFI side datas whether transmission success by the feedback information that LTE channels are received
Step includes：
Whether WIFI side datas are judged with the feedback information that data signal mode is received according to by LTE channels
Transmission success.
Alternatively, the WIFI side datas are dispatched to before LTE channels are retransmitted described, the number
Also include according to transmission method：
Judge whether the number of times for retransmitting reaches the upper limit；
If it is not, just trigger and described the WIFI side datas be dispatched to LTE channels carrying out the execution of retransmissions steps.
Alternatively, WIFI side datas are judged whether before transmission success in the feedback information that the basis is received,
The data transmission method also includes：
Distribute the data of the data and WIFI transmissions in LTE transmissions；
It is determined that in the corresponding PDCP PDU SN of data and the number in WIFI transmissions of LTE transmissions
According to corresponding PDCP PDU SN.
Present invention also offers a kind of data transmission device, the transmitting terminal being applied in LTE-WIFI aggregation scenes,
Including：
First judge module, for judging WIFI side datas whether transmission success according to the feedback information that receives；
First processing module, for being retransmitted if it is not, the WIFI side datas are dispatched to LTE channels then.
Present invention also offers a kind of data transmission method, the receiving terminal being applied in LTE-WIFI aggregation scenes,
Including：
When trigger point is reached, according to data receiver situation to transmitting terminal send feedback information；
Receive the WIFI side datas that the transmitting terminal is retransmitted by LTE channels according to the feedback information.
Alternatively, the transmitting terminal is received according to the feedback information by LTE channels or WIFI described
During the data that channel is retransmitted, the data transmission method also includes：
The WIFI side datas that reception is retransmitted by WIFI channels；Also,
When the WIFI side datas that LTE channels are retransmitted are received, if the WIFI side datas that WIFI channels are retransmitted
Success, then abandon the WIFI side datas that LTE channels are retransmitted, and produce the successful status information of packet transmission；
If the WIFI side datas that WIFI channels are retransmitted still fail, the WIFI that LTE channels are retransmitted is processed
Side data, and packet transmission status information is produced according to reception condition.
Alternatively, it is described when trigger point is reached, according to data receiver situation to transmitting terminal send feedback information
The step of include：
When trigger point is reached, according to data receiver situation to transmitting terminal feedback packet data convergence protocol data
Packet number PDCP PDU SN state reports；
Wherein, corresponding to packet of the PDCP PDU SN state reports comprising reception success or failure
PDCP PDU SN。
Alternatively, it is described when trigger point is reached, according to data receiver situation to transmitting terminal send feedback information
The step of include：
Reach trigger point when, according to data receiver situation to transmitting terminal feedback data packet send status information and
Corresponding PDCP PDU SN.
Alternatively, it is described when trigger point is reached, according to data receiver situation to transmitting terminal send feedback information
The step of include：
When trigger point is reached, LTE channels and WIFI channels are passed through according to data receiver situation and is sent out to transmitting terminal
Send feedback information；
Wherein, the feedback information for being sent by LTE channels includes the feedback information of LTE sides, and WIFI
The feedback information of side.
Alternatively, it is when the receiving terminal is terminal, described when trigger point is reached, according to data receiver feelings
Condition by LTE channels and WIFI channels to transmitting terminal send feedback information the step of include：
When trigger point is reached, according to data receiver situation by LTE channels are in data signal mode and pass through
WIFI channels are with signaling method to transmitting terminal send feedback information；
Wherein, the feedback information for being sent by WIFI channels is first sent in data signal mode by the terminal
WIFI AP, then go to signaling method.
Alternatively, it is when the receiving terminal is base station, described when trigger point is reached, according to data receiver feelings
Condition by LTE channels and WIFI channels to transmitting terminal send feedback information the step of include：
When trigger point is reached, LTE channels and WIFI channels are passed through with data signal according to data receiver situation
Mode is to transmitting terminal send feedback information.
Alternatively, it is described when trigger point is reached, according to data receiver situation to transmitting terminal send feedback information
The step of include：
When the timing of intervalometer is reached, or after receiving the complete data packet of predetermined number, or work as
It is front do not have just in the reception packet when, according to data receiver situation to transmitting terminal send feedback information.
Present invention also offers a kind of data transmission device, the receiving terminal being applied in LTE-WIFI aggregation scenes,
Including：
Sending module, for when trigger point is reached, sending feedback letter to transmitting terminal according to data receiver situation
Breath；
Receiver module, for receiving what the transmitting terminal was retransmitted by LTE channels according to the feedback information
WIFI side datas.
The above-mentioned technical proposal of the present invention has the beneficial effect that：
In such scheme, the data transmission method is by judging WIFI sides number according to the feedback information for receiving
The transmission success according to whether, if it is not, WIFI side datas are dispatched to the mode retransmitted by LTE channels then, protects
The data transmission success of WIFI-LTE paradigmatic systems has been demonstrate,proved, the data of WIFI-LTE paradigmatic systems have been improve
Transmission reliability.
Description of the drawings
WIFI-LTE aggregation protocol configuration diagrams of the Fig. 1 for prior art；
Data transmission method schematic flow sheets of the Fig. 2 for the embodiment of the present invention one；
Data transmission method schematic flow sheets of the Fig. 3 for the embodiment of the present invention two；
Data transmission method schematic flow sheets of the Fig. 4 for the embodiment of the present invention three；
Fig. 5 retransmits schematic flow sheet for the cross-system of the embodiment of the present invention three；
Data transmission device structural representations of the Fig. 6 for the embodiment of the present invention four；
Data transmission device structural representations of the Fig. 7 for the embodiment of the present invention five.
Specific embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with attached
Figure and specific embodiment are described in detail.
Data transmission credibility for LTE-WIFI paradigmatic systems in existing technology of the invention is relatively low to ask
Topic, there is provided various solutions, it is specific as follows：
Embodiment one
As shown in Fig. 2 data transmission method in the embodiment of the present invention one, is applied to LTE-WIFI aggregation scenes
In transmitting terminal (base station/terminal), the data transmission method includes：
Step 21：Feedback information according to receiving judges WIFI side datas whether transmission success；
Step 22：If it is not, the WIFI side datas are dispatched to LTE channels then being retransmitted.
The data transmission method that the embodiment of the present invention one is provided is by judging according to the feedback information for receiving
WIFI side datas whether transmission success, if it is not, WIFI side datas are dispatched to LTE channels then being retransmitted
Mode, it is ensured that the data transmission success of WIFI-LTE paradigmatic systems, improve WIFI-LTE polymerization
The data transmission credibility of system.
Wherein, WIFI side datas refer to the data transmitted by WIFI channels.
Further, the embodiment of the present invention one provides various schemes for realizing step 21, specific as follows：
Scheme one, the feedback information that the basis is received judge WIFI side datas whether transmission success the step of
Including：PDCP data packet sequence row number PDCP PDU SN state reports according to receiving are obtained
To the PDCP PDU SN of data is activation success or failure；According to the data is activation success or failure
PDCP PDU SN obtain corresponding WIFI side datas whether transmission success.
Before using this programme one, need to be appointed in PDCP PDU SN state reports in advance with receiving terminal
PDCP PDU SN are the successful PDCP PDU SN of data is activation, or the PDCP of data is activation failure
PDU SN。
The transmission failure or success of specifically which packet can more directly be learnt using this programme, had
Which packets need is reappeared sends, and which need not resend, according to the packets need for obtaining again
The result of transmission carries out retransmission operation, substantially increases efficiency of transmission and user experience, and WIFI-LTE
The reliability of paradigmatic system.
It is specifically described to receiving the handling process after PDCP PDU SN state reports below：
The PDCP PDU SN state reports for receiving include be send failure PDCP PDU SN when,
Directly according to this/corresponding packet data retransmitted by these PDCP PDU SN by LTE channels,
And do not limit the retransmission operation of WIFI channels；
What is included in the PDCP PDU SN state reports for receiving is to send successful PDCP PDU
During SN, then the 2nd PDCP PDU SN corresponding to all packets being transmitted across in Preset Time are obtained,
The 3rd of packet transmission failure the is obtained according to a PDCP PDU SN and the 2nd PDCP PDU SN
Corresponding packet data is entered by LTE channels by PDCP PDU SN according to the 3rd PDCP PDU SN
Row is retransmitted, and does not limit the retransmission operation of WIFI channels.
Scheme two, the feedback information that the basis is received judge WIFI side datas whether transmission success the step of
Including：Status information is sent according to the packet for receiving and corresponding PDCP PDU SN judge WIFI sides
Data whether transmission success.
The relevant information for sending failure or successful packet can be more accurately obtained using this programme, according to
The packet for receiving sends status information and corresponding PDCP PDU SN obtain sending the packet of failure
Corresponding PDCP PDU SN, according to this/corresponding packet data led to by these PDCP PDU SN
Cross LTE channels to be retransmitted, and do not limit the retransmission operation of WIFI channels.
In addition, when dispatching LTE channels and retransmitting WIFI side datas, not retransmission processes to WIFI systems
Limited, that is to say, that there is the situation retransmitted to same packet with LTE channels by WIFI channels,
Cause the wasting of resources.To reduce the wasting of resources, in the present embodiment, when the transmitting terminal is base station, described
The WIFI side datas are dispatched to LTE channels to be retransmitted or by LTE channels re-transmission WIFI side datas
When successful, the data transmission method also includes：Notify that WIFI AP stop retransmitting transmission mistake with signaling method
The data for losing.Here, signalling can be carried out by Xw interfaces between base station and WIFI AP, certainly
Can be to adopt other modes to carry out information transfer, the present invention is not construed as limiting to this.
When the transmitting terminal is terminal, the WIFI side datas are dispatched to into LTE channels are retransmitted described
Or by, during the re-transmission WIFI side data successes of LTE channels, the data transmission method also includes：Stopping passes through
WIFI channels retransmit the operation of data.
In view of practical application scene, the feedback information that the basis is received judges whether WIFI side datas pass
Defeated successful step includes：Feedback information according to being received by LTE channels and WIFI channels judges WIFI
Side data whether transmission success；Or, WIFI is judged according to the feedback information received by LTE channels
Side data whether transmission success；Wherein, the feedback information for being received by LTE channels includes the anti-of LTE sides
Feedforward information, and the feedback information of WIFI sides；The feedback information received by WIFI channels is only included
The feedback information of WIFI sides.
Specifically, the basis judges WIFI by the feedback information that LTE channels and WIFI channels are received
Side data whether transmission success the step of include：Received by LTE channels and WIFI channels described in obtaining
The feedback information of WIFI sides in feedback information；WIFI is judged according to the feedback information of the WIFI sides for getting
Side data whether transmission success；When feedback information in arbitrary WIFI sides is designated as successfully, it is determined that anti-with this
WIFI side data bags corresponding to feedforward information send successfully.
Correspond to, when the transmitting terminal is base station, the basis passes through LTE channels and WIFI channels are received
To feedback information judge WIFI side datas whether transmission success the step of include：According to by LTE channels with
Data signal mode and WIFI side datas are judged with the feedback information that signaling method is received by WIFI channels
Whether transmission success；
The basis judges WIFI side datas whether transmission success by the feedback information that LTE channels are received
Step includes：WIFI sides number is judged with the feedback information that data signal mode is received according to by LTE channels
The transmission success according to whether.
Herein, data signal mode refers to the information interaction approach between terminal and base station, herein data signal
Refer to the signal between terminal and base station.
Correspond to, when the transmitting terminal is terminal, the basis passes through LTE channels and WIFI channels are received
To feedback information judge WIFI side datas whether transmission success the step of include：According to by LTE channels and
WIFI channels judge WIFI side datas whether transmission success with the feedback information that data signal mode is received；
The basis judges WIFI side datas whether transmission success by the feedback information that LTE channels are received
Step includes：WIFI sides number is judged with the feedback information that data signal mode is received according to by LTE channels
The transmission success according to whether.
Herein, data signal mode is referred between terminal and base station and the information between terminal and WIFI AP
Interactive mode, herein data signal refer between terminal and base station or the signal between terminal and WIFI AP.
In order to prevent, into the endless loop for retransmitting, wasting unnecessary resource, described by WIFI sides number
According to being dispatched to before LTE channels are retransmitted, the data transmission method also includes：Judge the number of times for retransmitting
Whether the upper limit is reached；If it is not, just trigger and described the WIFI side datas be dispatched to LTE channels being retransmitted
The execution of step.
Further, in order to clearly distinguish LTE side datas and WIFI side datas, receive in the basis
Feedback information judge WIFI side datas whether before transmission success, the data transmission method also includes：Point
Fit over the data of the data and WIFI transmissions of LTE transmissions；It is determined that in the number of LTE transmissions
According to the corresponding PDCP PDU SN and corresponding PDCP PDU SN of data in WIFI transmissions.
Be related to transmitting terminal in the present embodiment one for base station when, the part for receiving the feedback information of signaling method is (logical
Cross WIFI channels and receive feedback information), by Xw interfaces with signaling method between base station and WIFI AP
Carry out information exchange, the including but not limited to following several situations of signaling content：
1) the successful data packet sequence row number of WIFI transmissions；
2) the data packet sequence row number of WIFI transmissions failure；
3) need the data packet sequence row number for retransmitting；
4) the data packet sequence row number that need not be retransmitted；
5) packet sends status information and corresponding data packet sequence row number.
Embodiment two
As shown in figure 3, the data transmission method that the embodiment of the present invention two is provided, is applied to LTE-WIFI polymerizations
Receiving terminal (terminal/base station) in scene, the data transmission method includes：
Step 31：When trigger point is reached, according to data receiver situation to transmitting terminal send feedback information；
Step 32：Receive the WIFI sides that the transmitting terminal is retransmitted by LTE channels according to the feedback information
Data.
Wherein, when acute pyogenic infection of finger tip receiving terminal in trigger point start to judge whether the time conditions for receiving corresponding data,
It can be the time specified end time of time window, intervalometer time limit or receive predetermined number complete data packet
Etc. any time mode that can play restriction effect.
The embodiment of the present invention two provide the data transmission method by reach trigger point when, according to data
Reception condition is retransmitted by LTE channels to transmitting terminal send feedback information, receiving end/sending end according to feedback information
WIFI side datas, shorten receive WIFI stress pass data time, improve reception WIFI stress
Pass the reliability of the success rate and WIFI-LTE paradigmatic systems of data.
The situation that LTE channels and WIFI channels are retransmitted is corresponded to the pass, is connect to reduce the wasting of resources and guarantee
Receive the success rate of data, it is described receive the transmitting terminal according to the feedback information pass through LTE channels or
During the data that WIFI channels are retransmitted, the data transmission method also includes：Reception is retransmitted by WIFI channels
WIFI side datas；Also, when the WIFI side datas that LTE channels are retransmitted are received, if WIFI channels
The WIFI side data successes of re-transmission, then abandon the WIFI side datas that LTE channels are retransmitted, and produce packet
Send successful status information；If the WIFI side datas that WIFI channels are retransmitted still fail, LTE is processed
The WIFI side datas that channel is retransmitted, and packet transmission status information is produced according to reception condition.
Further, the embodiment of the present invention two provides various schemes for realizing step 31, specific as follows：
Scheme one, it is described when trigger point is reached, according to data receiver situation to transmitting terminal send feedback information
The step of include：When trigger point is reached, according to data receiver situation to transmitting terminal feedback packet convergence
Protocol data packet number PDCP PDU SN state reports, wherein, the PDCP PDU SN state reports
Accuse the PDCP PDU SN corresponding to the packet comprising reception success or failure.
Before using this programme one, need to be appointed in PDCP PDU SN state reports in advance with transmitting terminal
PDCP PDU SN are the successful PDCP PDU SN of data is activation, or the PDCP of data is activation failure
PDU SN。
Using this programme can make transmitting terminal more directly learn specifically which packet transmission failure or
Which packets need success, have reappear and send, and which need not resend, and then according to the number for obtaining
Need the result for resending to carry out retransmission operation according to bag, substantially increase efficiency of transmission and user experience,
And the reliability of WIFI-LTE paradigmatic systems.
Scheme two, it is described when trigger point is reached, according to data receiver situation to transmitting terminal send feedback information
The step of include：When trigger point is reached, shape is sent to transmitting terminal feedback data packet according to data receiver situation
State information and corresponding PDCP PDU SN.
Transmitting terminal can be made more to be accurately obtained the related letter for sending failure or successful packet using this programme
Breath, and then obtain sending mistake according to the packet transmission status information and corresponding PDCP PDU SN for receiving
PDCP PDU SN corresponding to the packet for losing, according to this/these PDCP PDU SN are by corresponding number
Retransmitted by LTE channels according to bag data, and do not limited the retransmission operation of WIFI channels.
Specifically, it is described when trigger point is reached, according to data receiver situation to transmitting terminal send feedback information
The step of include：Reach intervalometer timing when, or receive predetermined number complete data packet it
Afterwards, during or currently without packet just in the reception, sent to transmitting terminal according to data receiver situation and fed back
Information.
It is furthermore, it is contemplated that practical application scene, described when trigger point is reached, according to data receiver situation to
The step of transmitting terminal send feedback information, includes：When trigger point is reached, LTE is passed through according to data receiver situation
Channel and WIFI channels are to transmitting terminal send feedback information；Wherein, the feedback information for being sent by LTE channels
Including the feedback information of LTE sides, and the feedback information of WIFI sides；The feedback sent by WIFI channels
Information only includes the feedback information of WIFI sides.
Correspond to, it is when the receiving terminal is terminal, described when trigger point is reached, according to data receiver feelings
Condition by LTE channels and WIFI channels to transmitting terminal send feedback information the step of include：Reach trigger point
When, according to data receiver situation by LTE channels are in data signal mode and pass through WIFI channels with signaling side
Formula is to transmitting terminal send feedback information；
Wherein, the feedback information for being sent by WIFI channels is first sent in data signal mode by the terminal
WIFI AP, then go to signaling method.
Herein, data signal mode can be between acute pyogenic infection of finger tip terminal and base station and between terminal and WIFI AP
Information interaction approach, data signal are referred between terminal and base station or the signal between terminal and WIFI AP.
Correspond to, it is when the receiving terminal is base station, described when trigger point is reached, according to data receiver feelings
Condition by LTE channels and WIFI channels to transmitting terminal send feedback information the step of include：Reach trigger point
When, sent to transmitting terminal in data signal mode by LTE channels and WIFI channels according to data receiver situation
Feedback information.
Herein, data signal mode can be between acute pyogenic infection of finger tip terminal and base station and between terminal and WIFI AP
Information interaction approach, data signal are referred between terminal and base station or the signal between terminal and WIFI AP.
Be related in the present embodiment two receiving terminal for terminal when, with signaling method to transmitting terminal send feedback information
Partly (by WIFI channels to base station send feedback information), pass through Xw between WIFI AP and base station
Interface carries out information exchange, the including but not limited to following several situations of signaling content with signaling method：
1) the successful data packet sequence row number of WIFI transmissions；
2) the data packet sequence row number of WIFI transmissions failure；
3) need the data packet sequence row number for retransmitting；
4) the data packet sequence row number that need not be retransmitted；
5) packet sends status information and corresponding data packet sequence row number.
Embodiment three
In order to improve the reliability of LTE-WIFI paradigmatic systems, the embodiment of the present invention three provides a kind of cross-system
The data transmission method (following behavior example) of re-transmission, will WIFI channels re-transmission data be transferred to LTE frequency
Duan Jinhang is retransmitted, specific as follows：
In order to realize that cross-system is retransmitted, current embodiment require that the problem for solving is how base station eNB knows WIFI
Side data whether transmission success.
The present embodiment distinguishes LTE side datas and WIFI side datas using PDCP PDU SN, and to PDCP
Protocol data bag introduces transmission state feedback mechanism, and PDCP entities are according to feedback information and PDCP PDU SN
Judge whether WIFI side datas need to retransmit, major scheme is as shown in Figure 4：
Step 41：Transmitting terminal (base station) PDCP completes data distribution, clearly in the PDCP of LTE transmissions
The PDU SN and PDCP PDU SN in WIFI transmissions.
Step 42：Receiving terminal (terminal) PDCP according to specifying in time window (or intervalometer timer etc. its
The mode of his limiting time) data receiver situation feeding back ACK/NACK (packet transmission status information) with
And corresponding PDCP PDU SN.
Step 43：Transmitting terminal sends status information according to packet and PDCP PDU SN judge WIFI sides number
The transmission success according to whether.
Step 44：If step 43 judges WIFI side data bust thiss, transmitting terminal judges whether to exceed most
Big number of retransmissions.
Step 45：If step 44 judges to be not above maximum retransmission, WIFI is stressed to pass data
It is dispatched to LTE channels to be transmitted.
Step 46：Whether receiving terminal judges the re-transmission of WIFI AP when the data that LTE channels are retransmitted are received
Success.
Step 47：If WIFI stresses to pass successfully, then receiving terminal abandons LTE side datas, and enters step
Rapid 42 (in LTE channel feedback ACK informations).
Step 48：If WIFI stresses to pass and still fails, then receiving terminal processes LTE side datas, then
Into step 42, according to reception condition feeding back ACK/nack message.
Below major scheme is optimized, it is specific as follows：
1. the optimization processing of pair major scheme step 45：
In major scheme, when dispatching LTE channels and retransmitting WIFI side datas, the not weight to WIFI systems
Cheng Jinhang restrictions are transmitted through, also with regard to saying the feelings for having that WIFI channels are retransmitted to same packet with LTE channels
Condition, causes the wasting of resources.To reduce the wasting of resources, increase eNB in step 45 and WIFI is notified with signaling method
AP stops the operation for retransmitting, i.e.,：
Step 45：If step 43 judges WIFI side data bust thiss, step 44 judges that number of retransmissions does not have
Have and reach the upper limit, then transmitting terminal scheduling LTE channels carry out the re-transmission of WIFI side datas, while with signaling method
Notify that WIFI AP stop retransmitting.
As WIFI AP before re-transmission termination instruction is received may have been carried out retransmitting, there is WIFI
Stress to pass preferential successfully possible, so step 46,47 and 48 keep constant.
2. the optimization one of pair major scheme rapid 42：
Receiving terminal feedback information only includes PDCP PDU SN, not feeding back ACK/nack message.In feedback
Hold：Receive the PDCP PDU SN of successful PDCP PDU SN or reception failure.
Step 42：Receiving terminal at the appointed time in the window mode of timer (or other limiting times such as) feedback
PDCP PDU SN receiving state reports.
Step 43 correspondence is changed to：According to PDCP PDU SN, transmitting terminal judges whether WIFI side datas transmit into
Work(.
In major scheme, other steps keep constant.
3. the optimization two of pair major scheme step 42：
Step 42：Receiving terminal data receiving state is fed back simultaneously by LTE channels and WIFI channels, LTE letters
Road feedback be PDCP protocol data bags ACK/NACK and corresponding PDCP PDU SN, including LTE
The reception state and correspondence of the reception state of side data and corresponding PDCP PDU SN and WIFI side datas
PDCP PDU SN.WIFI channel feedbacks are the ACK/NACK feedback machines based on WIFI internal systems
System, so WIFI channels only feed back the reception state of WIFI side datas, and via WIFI AP with signaling
Mode notifies the transmission state of eNB WIFI side datas.
Select corresponding to this kind, feedback information of the transmitting terminal for WIFI sides feedback information with LTE channels is adopted
The logical operationss of "or", as long as having side channel feedback PDCP protocol data bag transmission success, network
Side is considered as the packet transmission success.
Other steps of major scheme are constant.
It should be noted that being related to WIFI AP in the embodiment of the present invention three to the portion of eNB send feedback informations
Divide (by WIFI channels to eNB send feedback informations), connect by Xw between WIFI AP and eNB
Mouth carries out information exchange, the including but not limited to following several situations of signaling content with signaling method：
1) the successful data packet sequence row number of WIFI transmissions；
2) the data packet sequence row number of WIFI transmissions failure；
3) need the data packet sequence row number for retransmitting；
4) the data packet sequence row number that need not be retransmitted；
5) packet sends status information and corresponding data packet sequence row number.
The number for the cross-system that the embodiment of the present invention three is provided being retransmitted by taking the scene of downlink data transmission as an example below
It is specifically described that (scheme that the embodiment of the present invention three is provided equally is fitted to uplink data retransmission according to transmission method
With).
As shown in figure 5, transmitting terminal (LTE eNB) is by data to be transferred PDCP PDU1, PDCP PDU2,
PDCP PDU3, PDCP PDU4 is allocated, and PDCP PDU1 and PDCP PDU2 are in LTE channels
Transmission, PDCP PDU3 and PDCP PDU4 are transmitted via WIFI AP in WIFI channels.
Receiving terminal (UE) is at the appointed time properly received PDCP PDU1/2/4 in window, does not receive PDCP
PDU3, so PDCP PDU1/2/4 feeding back ACKs, PDCP PDU3 feedback NACK.With regard to time window
Determination (being not limited to this kind of mode)：Time window length is according to 1 PDCP number of LTE sides normal transmission
Determine according to the time needed for bag.
Transmitting terminal knows PDCP PDU3 bust thiss according to feedback information, and PDCP PDU3 are turned by transmitting terminal
Move on to LTE sides to be retransmitted.
If LTE stresses to pass data arrival UE, UE is successfully received WIFI and stresses to pass data, then
UE abandons the PDCP PDU3 of LTE sides transmission.
If UE is not also properly received PDCP PDU3, UE processes the PDCP of LTE sides transmission
PDU3, and to LTE eNB feeding back ACKs/nack message.
From the foregoing, it will be observed that the embodiment of the present invention three is provided realize highly reliable biography under a kind of LTE-WIFI aggregation scenes
Defeated method, wherein, transmitting terminal PDCP entities can according to PDCP PDU SN distinguish WIFI side datas and
LTE side datas；LTE eNB can notify in the way of signaling that WIFI AP stop the re-transmission in WIFI systems；
In data transmission fails, can cross-system retransmit, realize WIFI side datas LTE channels retransmit；To PDCP
Protocol data bag increased ACK/NACK feedback mechanisms；Receiving terminal receives shape to LTE eNB feedback data
State report, can via WIFI AP WIFI channels data receiving state with signaling by way of send to
LTE eNB, or directly data receiving state is sent to LTE eNB by LTE channels.
In sum, the scheme that the embodiment of the present invention three is provided is capable of achieving cross-system and retransmits, by LTE-WIFI
Need the WIFI data for retransmitting to be transferred to the transmission of LTE channels in aggregation scene, improve WIFI-LTE polymerizations
The reliability of system.
Example IV
As shown in fig. 6, data transmission device in the embodiment of the present invention four, is applied to LTE-WIFI aggregation scenes
In transmitting terminal (base station/terminal), the data transmission device includes：
First judge module 61, for judging whether WIFI side datas transmit into according to the feedback information for receiving
Work(；
First processing module 62, for carrying out if it is not, the WIFI side datas are dispatched to LTE channels then
Retransmit.
The data transmission device that the embodiment of the present invention four is provided is by judging according to the feedback information for receiving
WIFI side datas whether transmission success, if it is not, WIFI side datas are dispatched to LTE channels then being retransmitted
Mode, it is ensured that the data transmission success of WIFI-LTE paradigmatic systems, improve WIFI-LTE polymerization
The data transmission credibility of system.
Wherein, WIFI side datas refer to the data transmitted by WIFI channels.
Further, the embodiment of the present invention four provides various schemes for realizing 61 function of the first judge module,
It is specific as follows：
Scheme one, first judge module include：First processes submodule, for according to dividing for receiving
Group data convergence protocol data packet sequence row number PDCP PDU SN state reports obtain data is activation success or lose
The PDCP PDU SN for losing；Second processing submodule, for according to the data is activation success or failure
PDCP PDU SN obtain corresponding WIFI side datas whether transmission success.
Before using this programme one, need to be appointed in PDCP PDU SN state reports in advance with receiving terminal
PDCP PDU SN are the successful PDCP PDU SN of data is activation, or the PDCP of data is activation failure
PDU SN。
The transmission failure or success of specifically which packet can more directly be learnt using this programme, had
Which packets need is reappeared sends, and which need not resend, according to the packets need for obtaining again
The result of transmission carries out retransmission operation, substantially increases efficiency of transmission and user experience, and WIFI-LTE
The reliability of paradigmatic system.
Receive the handling process after PDCP PDU SN state reports below to have to the first judge module
Body explanation：
What the PDCP PDU SN state reports received in the first judge module were included is to send failure
During PDCP PDU SN, WIFI sides bust thiss corresponding with PDCP PDU SN are received directly are judged；
First processing module directly according to this/these PDCP PDU SN by corresponding packet data pass through LTE
Channel is retransmitted, and does not limit the retransmission operation of WIFI channels；
What the PDCP PDU SN state reports received in the first judge module were included is to send successful the
During one PDCP PDU SN, then second corresponding to all packets being transmitted across in Preset Time is obtained
PDCP PDU SN, obtain PDCP PDU according to a PDCP PDU SN and the 2nd PDCP PDU SN
The 3rd PDCP PDU SN that SN state reports do not have, judge number corresponding with the 3rd PDCP PDU SN
According to bag bust thiss；Corresponding packet data is passed through by first processing module according to the 3rd PDCP PDU SN
LTE channels are retransmitted, and do not limit the retransmission operation of WIFI channels.
Scheme two, first judge module include：First judging submodule, for according to the number for receiving
Status information and corresponding PDCP PDU SN are sent according to bag and judges WIFI side datas whether transmission success.
The relevant information for sending failure or successful packet can be more accurately obtained using this programme, according to
The packet for receiving sends status information and corresponding PDCP PDU SN obtain sending the packet of failure
Corresponding PDCP PDU SN, according to this/corresponding packet data led to by these PDCP PDU SN
Cross LTE channels to be retransmitted, and do not limit the retransmission operation of WIFI channels.
In addition, when dispatching LTE channels and retransmitting WIFI side datas, not retransmission processes to WIFI systems
Limited, that is to say, that there is the situation retransmitted to same packet with LTE channels by WIFI channels,
Cause the wasting of resources.To reduce the wasting of resources, in the present embodiment, when the transmitting terminal is base station, the number
Also include according to transmitting device：The WIFI side datas are dispatched by notification module for the first processing module
It is when being retransmitted to LTE channels or retransmitting the success of WIFI side datas by LTE channels, logical with signaling method
Know that WIFI AP stop retransmitting the data of bust thiss.Here, Xw can be passed through between base station and WIFI AP
Interface carries out signalling, naturally it is also possible to carry out information transfer using other modes, the present invention to this not
It is construed as limiting.
When the transmitting terminal is terminal, the data transmission device also includes：Stopping modular, for described
The WIFI side datas are dispatched to LTE channels and are retransmitted or retransmitted by LTE channels by one processing module
During the success of WIFI side datas, stop the operation of data is retransmitted by WIFI channels.
In view of practical application scene, first judge module includes：Second judging submodule, for root
WIFI side datas whether transmission success is judged according to the feedback information received by LTE channels and WIFI channels；
Or, the 3rd judging submodule, for judging WIFI according to the feedback information received by LTE channels
Side data whether transmission success；Wherein, the feedback information for being received by LTE channels includes the anti-of LTE sides
Feedforward information, and the feedback information of WIFI sides；The feedback information received by WIFI channels is only included
The feedback information of WIFI sides.
Specifically, second judging submodule includes：Acquisition submodule, it is described by LTE for obtaining
The feedback information of WIFI sides in the feedback information that channel and WIFI channels are received；4th judging submodule,
For WIFI side datas whether transmission success is judged according to the feedback information of WIFI sides for getting；It is determined that sub
Module, when being designated as successfully for the feedback information in arbitrary WIFI sides, it is determined that right with the feedback information institute
The WIFI side data bags answered send successfully.
Correspond to, when the transmitting terminal is base station, second judging submodule includes：5th judges son
Module, with signaling method is received in data signal mode and by WIFI channels by LTE channels for basis
The feedback information for arriving judges WIFI side datas whether transmission success；
3rd judging submodule includes：6th judging submodule, for basis by LTE channels with number
WIFI side datas whether transmission success is judged according to the feedback information that aspect is received.
Herein, data signal mode refers to the information interaction approach between terminal and base station, herein data signal
Refer to the signal between terminal and base station.
Correspond to, when the transmitting terminal is terminal, second judging submodule includes：7th judges son
Module, is sentenced with the feedback information that data signal mode is received by LTE channels and WIFI channels for basis
Disconnected WIFI side datas whether transmission success；
3rd judging submodule includes：8th judging submodule, for basis by LTE channels with number
WIFI side datas whether transmission success is judged according to the feedback information that aspect is received.
Herein, data signal mode is referred between terminal and base station and the information between terminal and WIFI AP
Interactive mode, herein data signal refer between terminal and base station or the signal between terminal and WIFI AP.
In order to prevent, into the endless loop for retransmitting, wasting unnecessary resource, the data transmission device is also wrapped
Include：The WIFI side datas are dispatched to LTE channels for the first processing module by the second judge module
Before being retransmitted, judge whether the number of times for retransmitting reaches the upper limit；Trigger module, for if it is not, just triggering
The first processing module is performed and for the WIFI side datas to be dispatched to the operation retransmitted by LTE channels.
Further, in order to clearly distinguish LTE side datas and WIFI side datas, the data transmission device
Also include：Distribute module, for judging WIFI according to the feedback information for receiving in first judge module
Whether side data before transmission success, distributes the data of the data and WIFI transmissions in LTE transmissions；
Determining module, for determining in the corresponding PDCP PDU SN of data of LTE transmissions and believing in WIFI
The corresponding PDCP PDU SN of data of road transmission.
Be related to transmitting terminal in the present embodiment four for base station when, the part for receiving the feedback information of signaling method is (logical
Cross WIFI channels and receive feedback information), by Xw interfaces with signaling method between base station and WIFI AP
Carry out information exchange, the including but not limited to following several situations of signaling content：
1) the successful data packet sequence row number of WIFI transmissions；
2) the data packet sequence row number of WIFI transmissions failure；
3) need the data packet sequence row number for retransmitting；
4) the data packet sequence row number that need not be retransmitted；
5) packet sends status information and corresponding data packet sequence row number.
It should be noted that the described of above-mentioned data transmission method realizes that embodiment is applied to the data transfer
In the embodiment of device, identical technique effect can be also reached.
Embodiment five
As shown in fig. 7, the data transmission device that the embodiment of the present invention five is provided, is applied to LTE-WIFI polymerizations
Receiving terminal (terminal/base station) in scene, the data transmission device includes：
Sending module 71, for when trigger point is reached, being sent to transmitting terminal according to data receiver situation and being fed back
Information；
Receiver module 72, for receiving what the transmitting terminal was retransmitted by LTE channels according to the feedback information
WIFI side datas.
Wherein, when acute pyogenic infection of finger tip receiving terminal in trigger point start to judge whether the time conditions for receiving corresponding data,
It can be the time specified end time of time window, intervalometer time limit or receive predetermined number complete data packet
Etc. any time mode that can play restriction effect.
The embodiment of the present invention five provide the data transmission device by reach trigger point when, according to data
Reception condition is retransmitted by LTE channels to transmitting terminal send feedback information, receiving end/sending end according to feedback information
WIFI side datas, shorten receive WIFI stress pass data time, improve reception WIFI stress
Pass the reliability of the success rate and WIFI-LTE paradigmatic systems of data.
The situation that LTE channels and WIFI channels are retransmitted is corresponded to the pass, is connect to reduce the wasting of resources and guarantee
The success rate of data is received, the data transmission device also includes：Second processing module, for receiving by WIFI
The WIFI side datas that channel is retransmitted；Also, when the WIFI side datas that LTE channels are retransmitted are received, if
The WIFI side data successes that WIFI channels are retransmitted, then abandon the WIFI side datas that LTE channels are retransmitted, and
Produce packet and send successful status information；If the WIFI side datas that WIFI channels are retransmitted still fail,
The WIFI side datas that LTE channels are retransmitted then are processed, and packet is produced according to reception condition and send status information.
Further, the embodiment of the present invention two provides various schemes for realizing 71 function of sending module, specifically
It is as follows：
Scheme one, the sending module include：First feedback submodule, for reach trigger point when, root
According to data receiver situation to transmitting terminal feedback packet data convergence protocol data packet sequence row number PDCP PDU SN
State report；Wherein, the PDCP PDU SN state reports include the packet institute for receiving success or failure
Corresponding PDCP PDU SN.
Before using this programme one, need to be appointed in PDCP PDU SN state reports in advance with transmitting terminal
PDCP PDU SN are the successful PDCP PDU SN of data is activation, or the PDCP of data is activation failure
PDU SN。
Using this programme can make transmitting terminal more directly learn specifically which packet transmission failure or
Which packets need success, have reappear and send, and which need not resend, and then according to the number for obtaining
Need the result for resending to carry out retransmission operation according to bag, substantially increase efficiency of transmission and user experience,
And the reliability of WIFI-LTE paradigmatic systems.
Scheme two, the sending module include：Second feedback submodule, for reach trigger point when, root
Status information and corresponding PDCP PDU SN are sent to transmitting terminal feedback data packet according to data receiver situation.
Transmitting terminal can be made more to be accurately obtained the related letter for sending failure or successful packet using this programme
Breath, and then obtain sending mistake according to the packet transmission status information and corresponding PDCP PDU SN for receiving
PDCP PDU SN corresponding to the packet for losing, according to this/these PDCP PDU SN are by corresponding number
Retransmitted by LTE channels according to bag data, and do not limited the retransmission operation of WIFI channels.
Specifically, the sending module includes：4th sending submodule, in the timing for reaching intervalometer
During the time, or after receiving the complete data packet of predetermined number, or currently without data just in the reception
Bao Shi, according to data receiver situation to transmitting terminal send feedback information.
Furthermore, it is contemplated that practical application scene, the sending module includes：First sending submodule, is used for
When trigger point is reached, LTE channels and WIFI channels are passed through according to data receiver situation and sends anti-to transmitting terminal
Feedforward information；Wherein, the feedback information for being sent by LTE channels includes the feedback information of LTE sides, and
The feedback information of WIFI sides；The feedback information sent by WIFI channels only includes the feedback letter of WIFI sides
Breath.
Correspond to, when the receiving terminal is terminal, first sending module includes：Second sends submodule
Block, for when trigger point is reached, according to data receiver situation by LTE channels in data signal mode and
By WIFI channels with signaling method to transmitting terminal send feedback information；
Wherein, the feedback information for being sent by WIFI channels is first sent in data signal mode by the terminal
WIFI AP, then go to signaling method.
Herein, data signal mode can be between acute pyogenic infection of finger tip terminal and base station and between terminal and WIFI AP
Information interaction approach, data signal are referred between terminal and base station or the signal between terminal and WIFI AP.
Correspond to, when the receiving terminal is base station, first sending submodule includes：3rd sends son
Module, for when trigger point is reached, passing through LTE channels and WIFI channels with number according to data receiver situation
According to aspect to transmitting terminal send feedback information.
Herein, data signal mode can be between acute pyogenic infection of finger tip terminal and base station and between terminal and WIFI AP
Information interaction approach, data signal are referred between terminal and base station or the signal between terminal and WIFI AP.
Be related in the present embodiment five receiving terminal for terminal when, with signaling method to transmitting terminal send feedback information
Partly (by WIFI channels to base station send feedback information), pass through Xw between WIFI AP and base station
Interface carries out information exchange, the including but not limited to following several situations of signaling content with signaling method：
1) the successful data packet sequence row number of WIFI transmissions；
2) the data packet sequence row number of WIFI transmissions failure；
3) need the data packet sequence row number for retransmitting；
4) the data packet sequence row number that need not be retransmitted；
5) packet sends status information and corresponding data packet sequence row number.
Wherein, the reality for realizing embodiment suitable for the data transmission device of above-mentioned data transmission method
Apply in example, can also reach identical technique effect.
Above-described is the preferred embodiment of the present invention, it should be pointed out that for the ordinary people of the art
For member, under the premise of without departing from principle of the present invention, some improvements and modifications can also be made, these
Improvements and modifications also should be regarded as protection scope of the present invention.
Claims (21)
1. a kind of data transmission method, the transmitting terminal being applied in LTE-WIFI aggregation scenes, its feature exist
In, including：
Feedback information according to receiving judges WIFI side datas whether transmission success；
If it is not, the WIFI side datas are dispatched to LTE channels then being retransmitted.
2. data transmission method as claimed in claim 1, it is characterised in that it is anti-that the basis is received
Feedforward information judge WIFI side datas whether transmission success the step of include：
PDCP data packet sequence row number PDCP PDU SN state reports according to receiving are obtained
To the PDCP PDU SN of data is activation success or failure；
Corresponding WIFI side datas are obtained according to the PDCP PDU SN of the data is activation success or failure is
No transmission success.
3. data transmission method as claimed in claim 1, it is characterised in that it is anti-that the basis is received
Feedforward information judge WIFI side datas whether transmission success the step of include：
Status information is sent according to the packet for receiving and corresponding PDCP PDU SN judge WIFI sides number
The transmission success according to whether.
4. data transmission method as claimed in claim 1, it is characterised in that when the transmitting terminal is base station,
It is described by the WIFI side datas be dispatched to LTE channels retransmitted or by LTE channels retransmit WIFI
During side data success, the data transmission method also includes：
Notify that WIFI AP stop retransmitting the data of bust thiss with signaling method.
5. data transmission method as claimed in claim 1, it is characterised in that when the transmitting terminal is terminal,
The WIFI side datas are dispatched to when LTE channels are retransmitted or are retransmitted by LTE channels described
WIFI side data successes, the data transmission method also include：
Stop the operation of data is retransmitted by WIFI channels.
6. data transmission method as claimed in claim 1, it is characterised in that it is anti-that the basis is received
Feedforward information judge WIFI side datas whether transmission success the step of include：
Feedback information according to being received by LTE channels and WIFI channels judges whether WIFI side datas pass
Defeated success；Or,
Feedback information according to being received by LTE channels judges WIFI side datas whether transmission success；
Wherein, the feedback information for being received by LTE channels includes the feedback information of LTE sides, and WIFI
The feedback information of side.
7. data transmission method as claimed in claim 6, it is characterised in that the basis is believed by LTE
The feedback information that road and WIFI channels are received judge WIFI side datas whether transmission success the step of include：
Obtain the feedback letter of WIFI sides in the feedback information received by LTE channels and WIFI channels
Breath；
WIFI side datas whether transmission success is judged according to the feedback information of the WIFI sides for getting；
When feedback information in arbitrary WIFI sides is designated as successfully, it is determined that with corresponding to the feedback information
WIFI side data bags send successfully.
8. data transmission method as claimed in claim 6, it is characterised in that be base station in the transmitting terminal
When, by the feedback information that LTE channels and WIFI channels are received, the basis judges that WIFI side datas are
The step of no transmission success, includes：
According to by LTE channels with data signal mode and by WIFI channels with signaling method receive it is anti-
Feedforward information judges WIFI side datas whether transmission success；
The basis judges WIFI side datas whether transmission success by the feedback information that LTE channels are received
Step includes：
Whether WIFI side datas are judged with the feedback information that data signal mode is received according to by LTE channels
Transmission success.
9. data transmission method as claimed in claim 6, it is characterised in that be terminal in the transmitting terminal
When, by the feedback information that LTE channels and WIFI channels are received, the basis judges that WIFI side datas are
The step of no transmission success, includes：
According to the feedback information judgement received in data signal mode by LTE channels and WIFI channels
WIFI side datas whether transmission success；
The basis judges WIFI side datas whether transmission success by the feedback information that LTE channels are received
Step includes：
Whether WIFI side datas are judged with the feedback information that data signal mode is received according to by LTE channels
Transmission success.
10. data transmission method as claimed in claim 1, it is characterised in that described by the WIFI
Side data is dispatched to before LTE channels are retransmitted, and the data transmission method also includes：
Judge whether the number of times for retransmitting reaches the upper limit；
If it is not, just trigger and described the WIFI side datas be dispatched to LTE channels carrying out the execution of retransmissions steps.
11. data transmission methods as claimed in claim 1, it is characterised in that receive in the basis
Feedback information judges WIFI side datas whether before transmission success, and the data transmission method also includes：
Distribute the data of the data and WIFI transmissions in LTE transmissions；
It is determined that in the corresponding PDCP PDU SN of data and the number in WIFI transmissions of LTE transmissions
According to corresponding PDCP PDU SN.
A kind of 12. data transmission devices, the transmitting terminal being applied in LTE-WIFI aggregation scenes, its feature exist
In, including：
First judge module, for judging WIFI side datas whether transmission success according to the feedback information that receives；
First processing module, for being retransmitted if it is not, the WIFI side datas are dispatched to LTE channels then.
A kind of 13. data transmission methods, the receiving terminal being applied in LTE-WIFI aggregation scenes, its feature exist
In, including：
When trigger point is reached, according to data receiver situation to transmitting terminal send feedback information；
Receive the WIFI side datas that the transmitting terminal is retransmitted by LTE channels according to the feedback information.
14. data transmission methods as claimed in claim 13, it is characterised in that sending out described in the reception
During the data that sending end is retransmitted by LTE channels according to the feedback information, the data transmission method also includes：
The WIFI side datas that reception is retransmitted by WIFI channels；Also,
When the WIFI side datas that LTE channels are retransmitted are received, if the WIFI side datas that WIFI channels are retransmitted
Success, then abandon the WIFI side datas that LTE channels are retransmitted, and produce the successful status information of packet transmission；
If the WIFI side datas that WIFI channels are retransmitted still fail, the WIFI that LTE channels are retransmitted is processed
Side data, and packet transmission status information is produced according to reception condition.
15. data transmission methods as claimed in claim 13, it is characterised in that described to reach trigger point
When, include the step of according to data receiver situation to transmitting terminal send feedback information：
When trigger point is reached, according to data receiver situation to transmitting terminal feedback packet data convergence protocol data
Packet number PDCP PDU SN state reports；
Wherein, corresponding to packet of the PDCP PDU SN state reports comprising reception success or failure
PDCP PDU SN。
16. data transmission methods as claimed in claim 13, it is characterised in that described to reach trigger point
When, include the step of according to data receiver situation to transmitting terminal send feedback information：
Reach trigger point when, according to data receiver situation to transmitting terminal feedback data packet send status information and
Corresponding PDCP PDU SN.
17. data transmission methods as claimed in claim 13, it is characterised in that described to reach trigger point
When, include the step of according to data receiver situation to transmitting terminal send feedback information：
When trigger point is reached, LTE channels and WIFI channels are passed through according to data receiver situation and is sent out to transmitting terminal
Send feedback information；
Wherein, the feedback information for being sent by LTE channels includes the feedback information of LTE sides, and WIFI
The feedback information of side.
18. data transmission methods as claimed in claim 17, it is characterised in that in the receiving terminal for eventually
It is during end, described when trigger point is reached, LTE channels and WIFI channels are passed through to sending out according to data receiver situation
The step of sending end send feedback information, includes：
When trigger point is reached, according to data receiver situation by LTE channels are in data signal mode and pass through
WIFI channels are with signaling method to transmitting terminal send feedback information；
Wherein, the feedback information for being sent by WIFI channels is first sent in data signal mode by the terminal
WIFI AP, then go to signaling method.
19. data transmission methods as claimed in claim 17, it is characterised in that the receiving terminal be base
It is when standing, described when trigger point is reached, LTE channels and WIFI channels are passed through to sending out according to data receiver situation
The step of sending end send feedback information, includes：
When trigger point is reached, LTE channels and WIFI channels are passed through with data signal according to data receiver situation
Mode is to transmitting terminal send feedback information.
20. data transmission methods as claimed in claim 13, it is characterised in that described to reach trigger point
When, include the step of according to data receiver situation to transmitting terminal send feedback information：
When the timing of intervalometer is reached, or after receiving the complete data packet of predetermined number, or work as
It is front do not have just in the reception packet when, according to data receiver situation to transmitting terminal send feedback information.
A kind of 21. data transmission devices, the receiving terminal being applied in LTE-WIFI aggregation scenes, its feature exist
In, including：
Sending module, for when trigger point is reached, sending feedback letter to transmitting terminal according to data receiver situation
Breath；
Receiver module, for receiving what the transmitting terminal was retransmitted by LTE channels according to the feedback information
WIFI side datas.
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| CN201510601467.6A CN106550470A (en) | 2015-09-18 | 2015-09-18 | A kind of data transmission method and device |
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| CN201510601467.6A CN106550470A (en) | 2015-09-18 | 2015-09-18 | A kind of data transmission method and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018209803A1 (en) * | 2017-05-19 | 2018-11-22 | 华为技术有限公司 | Method and apparatus for information transmission |
| CN111262648A (en) * | 2018-11-30 | 2020-06-09 | 华为技术有限公司 | Communication method and device |
| CN111294146A (en) * | 2019-04-12 | 2020-06-16 | 展讯通信（上海）有限公司 | Retransmission method and device of data frame |
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| CN102215530A (en) * | 2011-05-27 | 2011-10-12 | 上海华为技术有限公司 | Data flow transmission method and related equipment and system |
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| CN102215530A (en) * | 2011-05-27 | 2011-10-12 | 上海华为技术有限公司 | Data flow transmission method and related equipment and system |
| CA2858030A1 (en) * | 2011-12-05 | 2013-06-13 | Adaptive Spectrum And Signal Alignment, Inc. | Systems and methods for traffic load balancing on multiple wan backhauls and multiple distinct lan networks |
| WO2015106393A1 (en) * | 2014-01-14 | 2015-07-23 | 华为技术有限公司 | Method, ue and base station for data transmission |
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| WO2018209803A1 (en) * | 2017-05-19 | 2018-11-22 | 华为技术有限公司 | Method and apparatus for information transmission |
| US11184135B2 (en) | 2017-05-19 | 2021-11-23 | Huawei Technologies Co., Ltd. | Information transmission method and apparatus |
| CN111262648A (en) * | 2018-11-30 | 2020-06-09 | 华为技术有限公司 | Communication method and device |
| CN111262648B (en) * | 2018-11-30 | 2021-09-07 | 华为技术有限公司 | Communication method and device |
| US11936472B2 (en) | 2018-11-30 | 2024-03-19 | Huawei Technologies Co., Ltd. | Communication method and communications apparatus for improving reliability of data transmission |
| CN111294146A (en) * | 2019-04-12 | 2020-06-16 | 展讯通信（上海）有限公司 | Retransmission method and device of data frame |
| CN111294146B (en) * | 2019-04-12 | 2021-08-10 | 展讯通信（上海）有限公司 | Retransmission method and device of data frame |
| US11424870B2 (en) | 2019-04-12 | 2022-08-23 | Spreadtrum Communications (Shanghai) Co., Ltd. | Data frame retransmission method and device |
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