CN109155697A - Determine method, transmitting terminal, receiving end and the system of feedback - Google Patents

Determine method, transmitting terminal, receiving end and the system of feedback Download PDF

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Publication number
CN109155697A
CN109155697A CN201780027290.0A CN201780027290A CN109155697A CN 109155697 A CN109155697 A CN 109155697A CN 201780027290 A CN201780027290 A CN 201780027290A CN 109155697 A CN109155697 A CN 109155697A
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CN
China
Prior art keywords
data packet
information
protocol layer
feedback information
according
Prior art date
Application number
CN201780027290.0A
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Chinese (zh)
Inventor
尹小俊
吴旭科
Original Assignee
深圳市大疆创新科技有限公司
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Application filed by 深圳市大疆创新科技有限公司 filed Critical 深圳市大疆创新科技有限公司
Priority to PCT/CN2017/120268 priority Critical patent/WO2019127533A1/en
Publication of CN109155697A publication Critical patent/CN109155697A/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/1607Details of the supervisory signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/1607Details of the supervisory signal
    • H04L1/1664Details of the supervisory signal the supervisory signal being transmitted together with payload signals; piggybacking
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. van Duuren system ; ARQ protocols
    • H04L1/1812Hybrid protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic or resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/06Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information

Abstract

A kind of method, transmitting terminal, receiving end and the system of determining feedback.This method comprises: being based on retransmission protocol, the first data packet of the first protocol layer is sent to receiving end, includes the second data packet of second protocol layer in first data packet;The feedback information for first data packet that the receiving end returns is received, the feedback information includes ACK or NACK;According to the feedback information of first data packet, the feedback information of second data packet is determined.Present invention decreases the occupied link circuit resources of feedback information.

Description

Determine method, transmitting terminal, receiving end and the system of feedback

Technical field

The present invention relates to wireless communication technology field more particularly to a kind of method of determining feedback, transmitting terminal, receiving end and System.

Background technique

In a wireless communication system, different agreement layers can ensure that the reliability of data is passed using different retransmission protocols It is defeated.

It in the prior art, include media access control (Medium Access Control, MAC) layer and nothing with protocol layer Wired link controls (Radio Link Control, RLC) layer, and MAC layer uses hybrid automatic repeat-request (Hybrid Automatic Repeat request, HARQ) agreement, rlc layer is using automatic repeat request (Automatic Repeat Request, ARQ) for agreement, when the MAC layer of transmitting terminal is based on HARQ protocol, rlc layer is based on ARQ agreement and transmits to receiving end When data, concrete processing procedure is as follows: sending MAC data packet to receiving end based on HARQ protocol, receives being somebody's turn to do from receiving end The feedback information of MAC data packet is further performed corresponding processing according to the feedback information of the MAC data packet, such as when When the feedback information received is negative response (Negative Acknowledgement, NACK), the MAC data can be retransmitted Packet;RLC data packet is sent to receiving end based on ARQ agreement, receives the feedback information of the RLC data packet from receiving end, into One step, it is performed corresponding processing according to the feedback information of the RLC data packet, such as when the feedback information received is NACK When, the RLC data packet can be retransmitted.

But in the prior art, it is more to there is a problem of that feedback information occupies link circuit resource.

Summary of the invention

The embodiment of the present invention provides method, transmitting terminal, receiving end and the system of a kind of determining feedback, for solving existing skill Feedback information occupies the more problem of link circuit resource in art.

In a first aspect, the embodiment of the present invention provides a kind of method of determining feedback, it is applied to transmitting terminal, the method packet It includes:

Based on retransmission protocol, the first data packet of the first protocol layer is sent to receiving end, is wrapped in first data packet Include the second data packet of second protocol layer;

Receive the feedback information for first data packet that the receiving end returns, the feedback information include ACK or NACK;

According to the feedback information of first data packet, the feedback information of second data packet is determined.

Second aspect, the embodiment of the present invention provide a kind of method of determining feedback, are applied to receiving end, the method packet It includes:

The first data packet of the first protocol layer that transmitting terminal is sent based on retransmission protocol is received, is wrapped in first data packet Include the second data packet of second protocol layer;

According to first data packet, the feedback information of first data packet, the feedback are returned to the transmitting terminal Information includes ACK or NACK, so that the transmitting terminal determines the feedback information of second data packet according to the feedback information.

The third aspect, the embodiment of the present invention provide a kind of transmitting terminal, comprising: processor and communication interface;

The processor, for being based on retransmission protocol, by the communication interface by the first data packet of the first protocol layer It is sent to receiving end, includes the second data packet of second protocol layer in first data packet;

The communication interface is also used to receive the feedback information for first data packet that the receiving end returns, described Feedback information includes ACK or NACK;

The processor is also used to the feedback information according to first data packet, determines the anti-of second data packet Feedforward information.

Fourth aspect, the embodiment of the present invention provide a kind of receiving end, comprising: communication interface and processor;

The communication interface, for receiving the first data packet of the first protocol layer that transmitting terminal is sent based on retransmission protocol, Second data packet of the second protocol layer for including in first data packet;

The processor, it is described anti-for determining the feedback information of first data packet according to first data packet Feedforward information includes ACK or NACK;

The communication interface is also used to return the feedback information of first data packet to the transmitting terminal, so that described Transmitting terminal determines the feedback information of second data packet according to the feedback information.

5th aspect, the embodiment of the present invention provide a kind of communication system, comprising: transmitting terminal and receiving end;

The transmitting terminal, for based on retransmission protocol, the first data packet of the first protocol layer to be sent to the receiving end, It include the second data packet of second protocol layer in first data packet;

The receiving end, receives first data packet that the transmitting terminal is sent, and according to first data packet, to The transmitting terminal returns to the feedback information of first data packet, and the feedback information includes ACK or NACK.

The transmitting terminal is also used to receive the feedback information for first data packet that the receiving end returns;According to institute The feedback information for stating the first data packet determines the feedback information of second data packet;

6th aspect, the embodiment of the present invention provide a kind of storage medium, are stored thereon with computer instruction, the computer Instruction realizes method described in above-mentioned first aspect when being executed by processor.

7th aspect, the embodiment of the present invention provide a kind of storage medium, are stored thereon with computer instruction, the computer Instruction realizes method described in above-mentioned second aspect when being executed by processor.

Method, transmitting terminal, receiving end and the system of determining feedback provided in an embodiment of the present invention, are based on weight by transmitting terminal Agreement is passed, the first data packet of the first protocol layer is sent to receiving end, includes second protocol layer in first data packet Second data packet receives the feedback information for first data packet that the receiving end returns, and according to first data packet Feedback information, determine the feedback information of second data packet, realize and determine according to the feedback information of the first data packet The feedback information of second data packet included by one data packet returns to the feedback information of the second data packet with receiving end to transmitting terminal It compares, occupancy when receiving end returns to the feedback information of the second data packet to transmitting terminal to link circuit resource is avoided, to reduce Feedback information occupied link circuit resource.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root Other attached drawings are obtained according to these attached drawings.

Figure 1A is the communication system architecture figure of the method application of determining feedback provided in an embodiment of the present invention;

Figure 1B is the relation schematic diagram of the first data packet and the second data packet provided in an embodiment of the present invention;

Fig. 2 is the flow chart of the embodiment of the method one of determining feedback provided in an embodiment of the present invention;

Fig. 3 A is the flow chart of the embodiment of the method two of determining feedback provided in an embodiment of the present invention;

Relation schematic diagram of Fig. 3 B between HARQ feedback provided in an embodiment of the present invention and subframe;

Fig. 4 is the flow chart of the embodiment of the method three of determining feedback provided in an embodiment of the present invention;

Fig. 5 is the flow chart of the embodiment of the method four of determining feedback provided in an embodiment of the present invention;

Fig. 6 is the flow chart of the embodiment of the method five of determining feedback provided in an embodiment of the present invention;

Fig. 7 is the structural schematic diagram of transmitting terminal provided in an embodiment of the present invention;

Fig. 8 is the structural schematic diagram of receiving end provided in an embodiment of the present invention.

Specific embodiment

In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments, in the absence of conflict, the technical characteristic in the present embodiment can In any combination.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts Every other embodiment obtained, shall fall within the protection scope of the present invention.

Figure 1A is the communication system architecture figure of the method application of determining feedback provided in an embodiment of the present invention.As shown in Figure 1, The communication system includes: transmitting terminal 10 and receiving end 20, is communicated to connect between transmitting terminal 10 and receiving end 20, transmitting terminal 10 with connect The first data packet of the first protocol layer can be transmitted between receiving end 20 based on retransmission protocol.Wherein, transmitting terminal 10 is specifically as follows The arbitrary equipment of first data packet is sent based on retransmission protocol, receiving end 20 is specifically as follows to be connect based on the retransmission protocol Receive and dispatch the opposite equip. of the transmitting terminal 10 for first data packet that sending end 10 is sent.First protocol layer be transmitting terminal 10 with Communications protocol layers between receiving end 20, the communications protocol layers can also include second protocol layer, in first data packet It may include the second data packet of the second protocol layer.Optionally, first protocol layer can be MAC layer, described second Protocol layer can be rlc layer.It should be noted that the first protocol layer described here be MAC layer, second protocol layer be rlc layer only It is any to meet the data packet that a protocol layer is transmitted based on retransmission protocol for citing, it include another in the data packet of the protocol layer Two protocol layers of the data packet condition of a protocol layer, can respectively correspond the first protocol layer and the second protocol in the present invention Layer.It should be noted that MAC layer can use HARQ protocol, ARQ agreement can also be used, it is of course also possible to be that other can be with Agreement for data transmission.

Wherein, first data packet for example can be as shown in Figure 1B with the relationship of second data packet.Such as Figure 1B institute Show, may include complete second data packet 1, complete second data packet 2 and the second partial data in the first data packet 1 3 are wrapped, may include the second data packet 3 of part in the first data packet 2, may include the second number of part in the first data packet 3 According to packet 3 and complete second data packet 4.It should be noted that Figure 1B is only the act of the second data packet Yu the first data packet relationship Example, the concrete form that the present invention does not include the second data packet to the first data packet is restricted, such as first data packet It can only include complete second data packet, alternatively, the first data packet may include complete or partial third data packet, Third data packet includes complete or the second partial data packet.

It should be noted that when first data packet includes complete second data packet, it is believed that the second data Coating is encapsulated in first data packet.When first data packet includes the second data packet of part, multiple first When second data packet group of the part that data packet includes is at complete second data packet, it is believed that the second data packet is split enfeoffment Mounted in multiple first data packets.

It should be noted that the data packet of first protocol layer is described for convenience in the embodiment of the present invention, it is referred to as described First data packet describes the data packet for the second protocol layer for including in the data packet of first protocol layer, referred to as institute for convenience State the second data packet.

It should be noted that transmitting terminal 10 and receiving end 20 can be opposite, and it is not fixed and invariable.Specifically , when the first equipment, which is based on retransmission protocol, sends first data packet to the second equipment, then first equipment is to send End, second equipment are receiving end.Described first is sent to first equipment when second equipment is based on retransmission protocol When data packet, then second equipment is transmitting terminal, and first equipment is receiving end.First equipment and the second equipment specifically may be used Think the arbitrary equipment that the data packet of the first protocol layer can be transmitted based on retransmission protocol, the present invention is to this and is not construed as limiting.It can Choosing, first equipment and second equipment can be respectively unmanned plane and unmanned aerial vehicle (UAV) control device, alternatively, described first sets Standby and described second equipment can be respectively the first unmanned plane and the second unmanned plane, alternatively, first equipment and described second Equipment can be respectively base station and terminal, etc..

Optionally, the retransmission protocol may include HARQ protocol or ARQ agreement etc., and the present invention is to this and is not construed as limiting.

Fig. 2 is the flow chart of the embodiment of the method one of determining feedback provided in an embodiment of the present invention.The method of the present embodiment It can be executed by above-mentioned transmitting terminal.As shown in Fig. 2, the method for the present embodiment may include:

Step 201, transmitting terminal are based on retransmission protocol, and the first data packet of the first protocol layer is sent to receiving end, described It include the second data packet of second protocol layer in first data packet.

In this step, the first number of the first protocol layer is transmitted between the transmitting terminal and the receiving end based on retransmission protocol According to packet.In one embodiment, when first protocol layer is MAC layer, first data packet is specifically as follows MAC protocol Data cell (Protocol Data Unit, PDU), when the second protocol layer is rlc layer, second data packet is specific It can be RLC PDU.In further embodiments, first protocol layer may be rlc layer, and the second protocol layer can be with For the protocol layer on rlc layer.

Step 202, the transmitting terminal receive the feedback information for first data packet that the receiving end returns.

In this step, the feedback information of first data packet include affirmative acknowledgement (Acknowledgement, ACK) or Person NACK.Wherein, the ACK can be used to indicate that receiving end is properly received first data packet, and the NACK can be used for Indicate that receiving end is not successfully received first data packet.

Step 203, the transmitting terminal determine the anti-of second data packet according to the feedback information of first data packet Feedforward information.

In this step, the feedback information of second data packet includes ACK or NACK.Since second data packet includes In first data packet, and the feedback information can indicate whether receiving end is properly received first data packet, because This, the feedback information of second data packet can be determined according to the feedback information of first data packet.

Optionally, when second data packet is encapsulated in first data packet, step 203 specifically can be with If are as follows: the feedback information of first data packet is ACK, it is determined that the feedback information of second data packet is ACK;If described The feedback information of first data packet is NACK and number of retransmissions is greater than or equal to preset times, it is determined that second data packet Feedback information is NACK.

Optionally, when second data packet, which is split, is encapsulated in multiple first data packets, step 203 specifically may be used If to include: the feedback information of the multiple first data packet all for ACK, it is determined that the feedback letter of second data packet Breath is ACK;If the feedback information of any one the first data packet is NACK and retransmits secondary in the multiple first data packet Number is greater than or equal to preset times, it is determined that the feedback information of second data packet is NACK.

It should be noted that the specific implementation of above-mentioned steps 203 is only for example, it in specific implementation can be according to The characteristics of one data packet includes the second data packet, such as first data packet only includes complete second data packet, with And the characteristics of the first data packet transmission, such as first data packet at most transmit 5 times, progress flexible design, the present invention is to this And it is not construed as limiting.

In the present embodiment, retransmission protocol is based on by transmitting terminal, the first data packet of the first protocol layer is sent to reception It holds, includes the second data packet of second protocol layer in first data packet, receive first number that the receiving end returns According to the feedback information of packet, and according to the feedback information of first data packet, the feedback information of second data packet is determined, it is real Showed according to the feedback information of the first data packet determine the first data packet included by the second data packet feedback information, with reception It holds the feedback information for returning to the second data packet to transmitting terminal to compare, avoids receiving end to transmitting terminal and return to the anti-of the second data packet To the occupancy of link circuit resource when feedforward information, to reduce the occupied link circuit resource of feedback information.

Fig. 3 A is the flow chart of the embodiment of the method two of determining feedback provided in an embodiment of the present invention.The method of the present embodiment On the basis of embodiment of the method shown in Fig. 2, by taking retransmission protocol is HARQ protocol as an example, a kind of optional realization is essentially described Mode.As shown in Figure 3A, the method for the present embodiment may include:

Step 301, transmitting terminal the first protocol layer be based on HARQ protocol, the first data packet of first protocol layer is sent out It send to receiving end, includes the second data packet of second protocol layer in first data packet.

In this step, in some embodiments it is possible to which first protocol layer is based on HARQ protocol, by first data Packet is filled to the transmission unit of the third protocol layer of the transmitting terminal, is sent first data packet by the transmission unit To receiving end.Wherein, the third protocol layer can be the protocol layer under first protocol layer, for example, working as described first When protocol layer is MAC layer, the third protocol layer can be physical layer, and the transmission unit can be transmission block (Transport Block, TB), when first protocol layer is rlc layer, the third protocol layer can be MAC layer, and the transmission unit can With MAC data packet.

Step 302, first protocol layer send the first information to the second protocol layer of the transmitting terminal;Described One information includes the mark of first data packet and the mark of second data packet.

In this step, the mark of second data packet is for identifying second data packet, the second different data packets Respective mark is different.The mark of first data packet can be used for identifying first data packet, the first different data It is different to wrap respective mark.Using first data packet as MAC data packet, the mark of first data packet may include described The transmitting and scheduling time of first data packet, the transmitting and scheduling time can indicate to transmit the time money of first data packet Source, when communication system is long term evolution (Long Term Evolution, LTE) system or (New Radio, NR) system of newly eating dishes without rice or wine When system, the time resource can be indicated by subframe, correspondingly, the mark of first data packet can be based on carrying institute The subframe numbers of the System Frame Number and subframe of stating the radio frames of the first data packet indicate.With second data packet for RLC data For packet, the mark of second data packet may include sequence number (Serial Number, SN), second data packet Mark can also include priority (priority).

As shown in Figure 1B, the second data packet, which can be segmented, is encapsulated in multiple first data packets, due to same second number The first different data packets is respectively corresponded according to the difference of packet, in order to enable second protocol layer can know the second data packet It can also be described including the segment identification of second data packet in the segmentation situation of the first data packet, the first information Segment identification is used to indicate whether as the last one segmentation of second data packet.Optionally, when second data packet not by Also may include the segment identification in the first information when segmentation, be used to indicate it is described for second data packet most It can not also include the segment identification in the latter segmentation or the first information.

It should be noted that step 302 is only for example after step 301 in the present embodiment, in specific implementation, the After one protocol layer determines the mark of first data packet, the first information can be sent to second protocol layer, and simultaneously It is not necessarily required to etc. to be sent to the first data packet after receiving end and sends the first information, hair in second protocol layer again The time sent can both influence each other or mutually indepedent

Step 303, first protocol layer obtain the feedback information of first data packet.

In this step, be specifically as follows first protocol layer receive the receiving end the first protocol layer send it is described The feedback information of first data packet or first protocol layer are parsed from the data from above-mentioned third protocol layer obtains institute State the feedback information of the first data packet.

Step 304, first protocol layer are sent out according to the feedback information of first data packet to the second protocol layer The second information is sent, second information includes: the mark of first data packet and the feedback information of first data packet.

In this step, for the first protocol layer, after it receives a feedback information, the feedback letter can be determined Breath is the feedback to which the first data packet, therefore, after the first protocol layer receives the feedback information of first data packet, The mark of first data packet can be determined according to the feedback information of first data packet, and by first data packet Mark and the feedback information of first data packet be sent to second protocol layer.Using the first protocol layer as MAC layer, based on holding The System Frame Number of radio frames and the subframe numbers of subframe for carrying first data packet indicate being identified as first data packet Example, the relationship between feedback information and subframe can be as shown in Figure 3B.Wherein, a square can represent a subframe, number A radio frames can be formed from continuous 10 subframes of 0-9.Arrow in square can indicate sub-frame of uplink upwards, arrow to Under can indicate downlink subframe.As can be seen that receiving end can transmit transmitting terminal and exist in the sub-frame of uplink 3 of first radio frames It the first data packet a for being sent in the downlink subframe 0 of first radio frames and is sent in the downlink subframe 1 of first radio frames The first respective feedback information of data packet b.In the sub-frame of uplink 9 of first radio frames, receiving end can transmit transmitting terminal and exist The first data packet c for being sent in the downlink subframe 2 of first radio frames, it is sent in the downlink subframe 4 of first radio frames First data packet d, the first data packet e sent in the downlink subframe 5 of first radio frames and in first radio frames The the first respective feedback information of data packet a retransmitted in downlink subframe 6.In the sub-frame of uplink 3 of second radio frames, receiving end can To transmit the first data packet b that transmitting terminal retransmits in the downlink subframe 7 of first radio frames, in the downlink of first radio frames The first data packet f for being sent in subframe 8, the first data packet g sent in the downlink subframe 0 of second radio frames and The the first respective feedback information of data packet h sent in the sub-frame of uplink 1 of two radio frames.

It should be noted that when second data packet is split and is encapsulated in multiple first data packets, described One protocol layer can send second information corresponding with the multiple first data packet to the second layer.

Step 305, the second protocol layer determine second data according to the first information and second information The feedback information of packet.

In this step, due to including the mark and second data of first data packet in the first information The mark of packet includes the mark of first data packet and the feedback letter of first data packet in second information Breath, therefore, the second protocol layer can be known according to the first information and second information including second data The feedback information of first data packet of packet can further be determined according to the feedback information of first data packet The feedback information of second data packet.

It should be noted that the first information and second sent with second protocol layer according to the first protocol layer in the present embodiment For information determines the feedback information of the second data packet, the present invention is not to transmitting terminal according to the feedback letter of first data packet Breath, determines that the specific implementation of the feedback information of second data packet limits.For example, according to the anti-of the first data packet When feedforward information determines the feedback information of the second data packet, the division of protocol layer can not also be made, alternatively, can also be by other agreements Layer is completed.

In the present embodiment, the first letter is sent to the second protocol layer of the transmitting terminal by the first protocol layer of transmitting terminal Breath, the first information includes the mark of first data packet and the mark of second data packet, first agreement Layer sends the second information to the second protocol layer, second information includes: according to the feedback information of first data packet The feedback information of the mark of first data packet and first data packet, the second protocol layer is according to first letter Breath and second information, determine the feedback information of second data packet, realize the feedback information according to the first data packet The feedback information for determining the second data packet included by the first data packet returns to the anti-of the second data packet to transmitting terminal with receiving end Feedforward information is compared, and occupancy when receiving end returns to the feedback information of the second data packet to transmitting terminal to link circuit resource is avoided, from And the occupied link circuit resource of feedback information is reduced, improve handling capacity.

Fig. 4 is the flow chart of the embodiment of the method three of determining feedback provided in an embodiment of the present invention.The method of the present embodiment On the basis of the embodiment of the method shown in Fig. 3 A, step 304 and a kind of optional implementation of step 305 are essentially described.Such as Shown in Fig. 4, the method for the present embodiment may include:

Step 401, first protocol layer are sent out according to the feedback information of first data packet to the second protocol layer The second information is sent, second information includes: the mark of first data packet and the feedback information of first data packet.

In this step, following steps 4011-4012 can specifically include.

If the feedback information of step 4011, first data packet is ACK, the second letter is sent to the second protocol layer Breath.Here, the feedback information for first data packet for including in second information is ACK.

If the feedback information of step 4012, first data packet is NACK, and the number of retransmissions of first data packet More than or equal to preset times, then the second information is sent to the second protocol layer.Here, the institute for including in second information The feedback information for stating the first data packet is NACK.

If can be seen that the feedback information of first data packet by step 4011 and step 4012 as NACK, but institute The number of retransmissions for stating the first data packet is less than the preset times, then does not send the second information to the second protocol layer.

As can be seen that the re-transmission of the first data packet is invisible to second protocol layer, and the first protocol layer is considering in this step On the basis of the re-transmission of first data packet, the feedback information of the first final data packet is determined, and based on the first final data The feedback information of packet sends the second information to second protocol layer.

Step 402, the second protocol layer determine second data according to the first information and second information The feedback information of packet.

In this step, when second data packet is encapsulated in first data packet, step 402 specifically can be with Include the following steps 4021 and step 4022.When second data packet, which is split, is encapsulated in multiple first data packets, Step 402 can specifically include following steps 4023 and step 4024.

If the feedback information for first data packet for including in step 4021, second information is ACK, described the Two protocol layers determine that the feedback information of second data packet is ACK according to the first information and second information.

Here, when the feedback information for first data packet for including in the second information is ACK, it may be said that bright final The feedback information of first data packet is ACK, can indicate that receiving end is finally properly received first data packet.Due to described Two data packets are encapsulated in first data packet, may thereby determine that second data packet also receiving end success It receives.Therefore, when the feedback information for first data packet for including in second data packet is ACK, second association View layer can determine that the feedback information of second data packet is ACK according to the first information and second information.

If the feedback information for first data packet for including in step 4022, second information is NACK, described Second protocol layer determines that the feedback information of second data packet is NACK according to the first information and second information.

Here, when the feedback information for first data packet for including in the second information is NACK, it may be said that bright final The first data packet feedback information be NACK, can indicate that receiving end is finally not successfully received first data packet.Due to Second data packet is encapsulated in first data packet, may thereby determine that second data packet is not also connect Receiving end is properly received.Therefore, described when the feedback information for first data packet for including in second information is NACK Second protocol layer can determine that the feedback information of second data packet is according to the first information and second information NACK。

If including first data packet in step 4023, corresponding second information of the multiple first data packet Feedback information is ACK, then the second protocol layer determines second number according to the first information and second information Feedback information according to packet is ACK.

Here, when second data packet, which is split, is encapsulated in multiple first data packets, only when described second The equal receiving end of all segmentations of data packet is properly received just it is considered that second data packet receiving end is properly received.Cause This, compared with the step 4021 that second data packet is encapsulated in first data packet, when the multiple first When feedback information in corresponding second information of data packet including first data packet is ACK, the second protocol Layer according to the first information and second information, can determine that the feedback information of second data packet is ACK.

If any one second information includes in step 4024, corresponding second information of the multiple first data packet The feedback information of first data packet is NACK, then the second protocol layer is according to the first information and second letter Breath determines that the feedback information of second data packet is NACK.

Here, when second data packet, which is split, is encapsulated in multiple first data packets, if second data The non-receiving end of any one segmentation of packet is properly received, it may be considered that the non-receiving end of the second data packet successfully connects It receives.Therefore, compared with the step 4022 that second data packet is encapsulated in first data packet, when the multiple Any one second information includes that the feedback information of first data packet is in corresponding second information of first data packet When NACK, the second protocol layer can determine second data packet according to the first information and second information Feedback information is NACK.

Invisible to second protocol layer by the re-transmission of the first data packet in the present embodiment, the first protocol layer is considering the On the basis of the re-transmission of one data packet, the feedback information of the first final data packet is determined, and based on the first final data packet Feedback information send the second information to second protocol layer, further, second protocol layer is according to the first information with described second Information determines the feedback information of second data packet, realizes the feedback information according to first data packet, determine described in The feedback information of second data packet.

Fig. 5 is the flow chart of the embodiment of the method four of determining feedback provided in an embodiment of the present invention.The method of the present embodiment On the basis of the embodiment of the method shown in Fig. 3 A, step 304 and another optional implementation of step 305 are essentially described. As shown in figure 5, the method for the present embodiment may include:

Step 501, first protocol layer are sent out according to the feedback information of first data packet to the second protocol layer The second information is sent, second information includes: the mark of first data packet and the feedback information of first data packet.

In this step, it can specifically include following steps 5011.

Step 5011, first protocol layer are after the feedback information for receiving first data packet, by described first The carrying of the feedback information of the mark of data packet and first data packet is sent to the second protocol layer in the second information. Here, the feedback information for first data packet for including in second information can be ACK or ACK.

As can be seen that the re-transmission of the first data packet is to second protocol as it can be seen that the first protocol layer is receiving the in this step After the feedback information of one data packet, the second information is sent to second protocol layer, includes first data packet in second information The mark of feedback information and second data packet.

Step 502, the second protocol layer determine second data according to the first information and second information The feedback information of packet.

In this step, when second data packet is encapsulated in first data packet, step 502 specifically can be with Include the following steps 5021 and step 5022.When second data packet, which is split, is encapsulated in multiple first data packets, Step 502 can specifically include following steps 5023 and step 5024.

If the feedback information for first data packet for including in step 5021, second information is ACK, described the Two protocol layers determine that the feedback information of second data packet is ACK according to the first information and second information.

Here, when the feedback information for first data packet for including in the second information is ACK, it may be said that bright first number It is ACK according to the feedback information of packet, can indicates that receiving end has been properly received first data packet.Due to second data packet It is encapsulated in first data packet, may thereby determine that also receiving end has been properly received second data packet. Therefore, when the feedback information for first data packet for including in second information is ACK, the second protocol layer can be with According to the first information and second information, determine that the feedback information of second data packet is ACK.

If the feedback information for first data packet for including in step 5022, second information is NACK, and is retransmitted Number is greater than or equal to preset times, then the second protocol layer determines institute according to the first information and second information The feedback information for stating the second data packet is NACK.

Here, when the feedback information for first data packet for including in the second information is NACK, and number of retransmissions is greater than Or when being equal to preset times, it can indicate that receiving end is finally not successfully received first data packet.Due to second data Coating is encapsulated in first data packet, may thereby determine that also non-receiving end successfully connects second data packet It receives.Therefore, when the feedback information for first data packet for including in second information be NACK, and number of retransmissions be greater than or When equal to preset times, the second protocol layer can determine described second according to the first information and second information The feedback information of data packet is NACK.

If including first data packet in step 5023, corresponding second information of the multiple first data packet Feedback information is ACK, then the second protocol layer determines second number according to the first information and second information Feedback information according to packet is ACK.

Here, when second data packet, which is split, is encapsulated in multiple first data packets, only when described second The equal receiving end of all segmentations of data packet is properly received just it is considered that second data packet receiving end is properly received.Cause This, compared with the step 5021 that second data packet is encapsulated in first data packet, when the multiple first When feedback information in corresponding second information of data packet including first data packet is ACK, the second protocol Layer according to the first information and second information, can determine that the feedback information of second data packet is ACK.

If any one second information includes in step 5024, corresponding second information of the multiple first data packet The feedback information of first data packet is NACK and number of retransmissions is greater than or equal to preset times, then the second protocol layer root According to the first information and second information, determine that the feedback information of second data packet is NACK.

Here, when second data packet, which is split, is encapsulated in multiple first data packets, if second data The non-receiving end of any one segmentation of packet is properly received, it may be considered that the non-receiving end of the second data packet successfully connects It receives.Therefore, compared with the step 5022 that second data packet is encapsulated in first data packet, when the multiple Any one second information includes that the feedback information of first data packet is in corresponding second information of first data packet When NACK and number of retransmissions are greater than or equal to preset times, the second protocol layer can be according to the first information and described the Two information determine that the feedback information of second data packet is NACK.

In the present embodiment, by the re-transmission of the first data packet to second protocol as it can be seen that the first protocol layer is receiving first After the feedback information of data packet, the second information is sent to second protocol layer, includes the anti-of first data packet in second information The mark of feedforward information and second data packet, further, second protocol layer are true with second information according to the first information The feedback information of fixed second data packet, realizes the feedback information according to first data packet, determines second number According to the feedback information of packet.

Optionally, on the basis of the above embodiments, in order to improve the successful receiving rate of the second data packet, can also include Following steps: if it is determined that the feedback information of second data packet is NACK, then second data packet is retransmitted.It is optional , second data packet can be retransmitted by the second protocol layer.

Fig. 6 is the flow chart of the embodiment of the method five of determining feedback provided in an embodiment of the present invention.The method of the present embodiment It can be executed by above-mentioned receiving end.As shown in fig. 6, the method for the present embodiment may include:

Step 601, receiving end receive the first data packet of the first protocol layer that transmitting terminal is sent based on retransmission protocol, described It include the second data packet of second protocol layer in first data packet.

In this step, the first number of the first protocol layer is transmitted between the receiving end and the transmitting terminal based on retransmission protocol According to packet.Optionally, first protocol layer includes MAC layer, and the second protocol layer includes rlc layer.In one embodiment, when When first protocol layer is MAC layer, first data packet is specifically as follows MAC PDU, when the second protocol layer is RLC When layer, second data packet is specifically as follows RLC PDU.

Step 602, the receiving end return to first data packet to the transmitting terminal according to first data packet Feedback information, feedback information include ACK or NACK, so that the transmitting terminal determines second number according to the feedback information According to the feedback information of packet.

In this step, the feedback information ACK of first data packet can be used to indicate that receiving end is properly received described the One data packet, the feedback information NACK of first data packet can be used to indicate that receiving end is not successfully received first data Packet.After the feedback information of first data packet is sent to the transmitting terminal by the receiving end, further, the transmission End can determine the feedback information of second data packet according to the feedback information.

In the present embodiment, first data packet of the transmitting terminal based on the first protocol layer for retransmitting transmission is received by receiving end, It include the second data packet of second protocol layer in first data packet, the receiving end is according to first data packet, to institute The feedback information that transmitting terminal returns to first data packet is stated, the transmitting terminal is allowed to determine institute according to the feedback information The feedback information for stating the second data packet is avoided and is connect compared with receiving end returns to the feedback information of the second data packet to transmitting terminal To the occupancy of link circuit resource when receiving end returns to the feedback information of the second data packet to transmitting terminal, to reduce shared by feedback information Link circuit resource.

Fig. 7 is the structural schematic diagram of transmitting terminal provided in an embodiment of the present invention.As shown in fig. 7, hair provided in this embodiment Sending end 10 may include processor 701 and communication interface 702.

Wherein, processor 701, for being based on retransmission protocol, by communication interface 702 by the first data of the first protocol layer Packet is sent to receiving end, includes the second data packet of second protocol layer in first data packet;

Communication interface 702 is also used to receive the feedback information for first data packet that the receiving end returns, described anti- Feedforward information includes ACK or NACK;

Processor 701 is also used to the feedback information according to first data packet, determines the feedback of second data packet Information.

Optionally, when second data packet is encapsulated in first data packet, processor 701 is according to described The feedback information of first data packet determines the feedback information of second data packet, specifically includes:

If the feedback information of first data packet is ACK, it is determined that the feedback information of second data packet is ACK;

If the feedback information of first data packet is NACK and number of retransmissions is greater than or equal to preset times, it is determined that institute The feedback information for stating the second data packet is NACK.

Optionally, when second data packet, which is split, is encapsulated in multiple first data packets, 701 basis of processor The feedback information of first data packet determines the feedback information of second data packet, specifically includes:

If the feedback information of the multiple first data packet is all ACK, it is determined that the feedback of second data packet Information is ACK;

If the feedback information of any one the first data packet is NACK and retransmits secondary in the multiple first data packet Number is greater than or equal to preset times, it is determined that the feedback information of second data packet is NACK.

Optionally, processor 701 are based on retransmission protocol, by communication interface 702 by the first data packet of the first protocol layer Be sent to receiving end, specifically include: the first protocol layer is based on retransmission protocol, by communication interface 702 by first protocol layer The first data packet be sent to receiving end;

Processor 701 is also used to first protocol layer to the second protocol layer and sends the first information;First letter Breath includes the mark of first data packet and the mark of second data packet;

Processor 701 determines the feedback information of second data packet according to the feedback information of first data packet, tool Body includes:

First protocol layer sends the second letter to the second protocol layer according to the feedback information of first data packet Breath, second information includes: the mark of first data packet and the feedback information of first data packet;

The second protocol layer determines the feedback of second data packet according to the first information and second information Information.

Optionally, first protocol layer is sent out according to the feedback information of first data packet to the second protocol layer Send the second information, comprising:

If the feedback information of first data packet is ACK, the second information is sent to the second protocol layer;

If the feedback information of first data packet is NACK, and the number of retransmissions of first data packet is greater than or equal to Preset times then send the second information to the second protocol layer.

Optionally, processor 701 are also used to:

If the feedback information of first data packet is NACK, but the number of retransmissions of first data packet is less than described pre- If number, then the second information is not sent to the second protocol layer.

Optionally, when second data packet is encapsulated in first data packet, the second protocol layer root According to the first information and second information, the feedback information of second data packet is determined, comprising:

If the feedback information for first data packet for including in second information is ACK, the second protocol layer According to the first information and second information, determine that the feedback information of second data packet is ACK;

If the feedback information for first data packet for including in second information is NACK, the second protocol layer According to the first information and second information, determine that the feedback information of second data packet is NACK.

Optionally, when second data packet, which is split, is encapsulated in multiple first data packets, first agreement Layer to the second protocol layer send the second information include: first protocol layer to the second protocol layer send with it is described more Corresponding second information of a first data packet;

The second protocol layer determines the feedback of second data packet according to the first information and second information Information, comprising:

If in corresponding second information of the multiple first data packet including the feedback information of first data packet It is ACK, then the second protocol layer determines the anti-of second data packet according to the first information and second information Feedforward information is ACK;

If any one second information includes described first in corresponding second information of the multiple first data packet The feedback information of data packet is NACK, then the second protocol layer determines institute according to the first information and second information The feedback information for stating the second data packet is NACK.

Optionally, first protocol layer is sent out according to the feedback information of first data packet to the second protocol layer Send the second information, comprising:

First protocol layer is after the feedback information for receiving first data packet, by the mark of first data packet Know and the carrying of the feedback information of first data packet is sent to the second protocol layer in the second information.

Optionally, when second data packet is encapsulated in first data packet, the second protocol layer root According to the first information and second information, the feedback information of second data packet is determined, comprising:

If the feedback information for first data packet for including in second information is ACK, the second protocol layer According to the first information and second information, determine that the feedback information of second data packet is ACK;

If the feedback information for first data packet for including in second information be NACK, and number of retransmissions be greater than or Equal to preset times, then the second protocol layer determines second data according to the first information and second information The feedback information of packet is NACK.

Optionally, when second data packet, which is split, is encapsulated in multiple first data packets, first agreement Layer sends second information to the second protocol layer, comprising: first protocol layer to the second protocol layer send with Corresponding second information of the multiple first data packet;

The second protocol layer determines the feedback of second data packet according to the first information and second information Information, comprising:

If in corresponding second information of the multiple first data packet including the feedback information of first data packet It is ACK, then the second protocol layer determines the anti-of second data packet according to the first information and second information Feedforward information is ACK;

If any one second information includes described first in corresponding second information of the multiple first data packet The feedback information of data packet is that NACK and number of retransmissions are greater than or equal to preset times, then the second protocol layer is according to described the One information and second information determine that the feedback information of second data packet is NACK.

It optionally, further include the segment identification of second data packet in the first information, the segment identification is used for Indicate whether for the last one segmentation of second data packet.

Optionally, System Frame Number of the mark of first data packet based on the radio frames for carrying first data packet with And the subframe numbers of subframe indicate.

Optionally, processor 701 is also used to: if it is determined that the feedback information of second data packet is NACK, then to described Second data packet is retransmitted.

Optionally, first protocol layer includes MAC layer, and the second protocol layer includes rlc layer.

Optionally, the retransmission protocol includes HARQ protocol.

The transmitting terminal of the present embodiment, can be used for executing Fig. 2, Fig. 3 A, embodiment of the method shown in Fig. 4 A or Fig. 5 A technology Scheme, it is similar that the realization principle and technical effect are similar, and details are not described herein again.

Fig. 8 is the structural schematic diagram of receiving end provided in an embodiment of the present invention.As shown in figure 8, provided in this embodiment connect Receiving end 20 may include communication interface 801 and processor 802.

Wherein, communication interface 801, for receiving the first data of the first protocol layer that transmitting terminal is sent based on retransmission protocol It wraps, the second data packet of the second protocol layer for including in first data packet;

Processor 802, it is described anti-for determining the feedback information of first data packet according to first data packet Feedforward information includes ACK or NACK;

Communication interface 801 is also used to return the feedback information of first data packet to the transmitting terminal, so that the hair Sending end determines the feedback information of second data packet according to the feedback information.

Optionally, first protocol layer includes MAC layer, and the second protocol layer includes rlc layer.

Optionally, the retransmission protocol includes HARQ protocol.

The transmitting terminal of the present embodiment, can be used for executing the technical solution of embodiment of the method shown in Fig. 6, realization principle and Technical effect is similar, and details are not described herein again.

As shown in Figure 1A, the embodiment of the present invention also provides a kind of communication system, comprising: transmitting terminal 10 and receiving end 20;

Transmitting terminal 10, it is described for based on retransmission protocol, the first data packet of the first protocol layer to be sent to receiving end 20 It include the second data packet of second protocol layer in first data packet;

Receiving end 20, for receiving first data packet of the transmission of transmitting terminal 10, according to first data packet, Xiang Fa Sending end 10 returns to the feedback information of first data packet, and the feedback information includes ACK or NACK;

Transmitting terminal 10 is also used to receive the feedback information of first data packet of the return of receiving end 20, according to described the The feedback information of one data packet determines the feedback information of second data packet.

Optionally, when second data packet is encapsulated in first data packet, transmitting terminal 10 is according to described The feedback information of first data packet determines the feedback information of second data packet, specifically includes:

If the feedback information of first data packet is ACK, it is determined that the feedback information of second data packet is ACK;

If the feedback information of first data packet is NACK and number of retransmissions is greater than or equal to preset times, it is determined that institute The feedback information for stating the second data packet is NACK.

Optionally, when second data packet, which is split, is encapsulated in multiple first data packets, 10 basis of transmitting terminal The feedback information of first data packet determines the feedback information of second data packet, specifically includes:

If the feedback information of the multiple first data packet is all ACK, it is determined that the feedback of second data packet Information is ACK;

If the feedback information of any one the first data packet is NACK and retransmits secondary in the multiple first data packet Number is greater than or equal to preset times, it is determined that the feedback information of second data packet is NACK.

Optionally, transmitting terminal 10 is based on retransmission protocol, the first data packet of the first protocol layer is sent to receiving end, specifically Include:

First protocol layer of transmitting terminal 10 is based on retransmission protocol, and the first data packet of first protocol layer is sent to and is connect Receiving end;

Transmitting terminal 10 is also used to: first protocol layer sends the first information to the second protocol layer;First letter Breath includes the mark of first data packet and the mark of second data packet;

Transmitting terminal 10 determines the feedback information of second data packet according to the feedback information of first data packet, tool Body includes:

First protocol layer sends the second letter to the second protocol layer according to the feedback information of first data packet Breath, second information includes: the mark of first data packet and the feedback information of first data packet;

The second protocol layer determines the feedback of second data packet according to the first information and second information Information.

Optionally, first protocol layer is sent out according to the feedback information of first data packet to the second protocol layer Send the second information, comprising:

If the feedback information of first data packet is ACK, the second information is sent to the second protocol layer;

If the feedback information of first data packet is NACK, and the number of retransmissions of first data packet is greater than or equal to Preset times then send the second information to the second protocol layer.

Optionally, transmitting terminal 10 is also used to:

If the feedback information of first data packet is NACK, but the number of retransmissions of first data packet is less than described pre- If number, then the second information is not sent to the second protocol layer.

Optionally, when second data packet is encapsulated in first data packet, the second protocol layer root According to the first information and second information, the feedback information of second data packet is determined, comprising:

If the feedback information for first data packet for including in second information is ACK, the second protocol layer According to the first information and second information, determine that the feedback information of second data packet is ACK;

If the feedback information for first data packet for including in second information is NACK, the second protocol layer According to the first information and second information, determine that the feedback information of second data packet is NACK.

Optionally, when second data packet, which is split, is encapsulated in multiple first data packets, first agreement Layer to the second protocol layer send the second information include: first protocol layer to the second protocol layer send with it is described more Corresponding second information of a first data packet;

The second protocol layer determines the feedback of second data packet according to the first information and second information Information, comprising:

If in corresponding second information of the multiple first data packet including the feedback information of first data packet It is ACK, then the second protocol layer determines the anti-of second data packet according to the first information and second information Feedforward information is ACK;

If any one second information includes described first in corresponding second information of the multiple first data packet The feedback information of data packet is NACK, then the second protocol layer determines institute according to the first information and second information The feedback information for stating the second data packet is NACK.

Optionally, first protocol layer is sent out according to the feedback information of first data packet to the second protocol layer Send the second information, comprising:

First protocol layer is after the feedback information for receiving first data packet, by the mark of first data packet Know and the carrying of the feedback information of first data packet is sent to the second protocol layer in the second information.

Optionally, when second data packet is encapsulated in first data packet, the second protocol layer root According to the first information and second information, the feedback information of second data packet is determined, comprising:

If the feedback information for first data packet for including in second information is ACK, the second protocol layer According to the first information and second information, determine that the feedback information of second data packet is ACK;

If the feedback information for first data packet for including in second information be NACK, and number of retransmissions be greater than or Equal to preset times, then the second protocol layer determines second data according to the first information and second information The feedback information of packet is NACK.

Optionally, when second data packet, which is split, is encapsulated in multiple first data packets, first agreement Layer sends second information to the second protocol layer, comprising: first protocol layer to the second protocol layer send with Corresponding second information of the multiple first data packet;

The second protocol layer determines the feedback of second data packet according to the first information and second information Information, comprising:

If in corresponding second information of the multiple first data packet including the feedback information of first data packet It is ACK, then the second protocol layer determines the anti-of second data packet according to the first information and second information Feedforward information is ACK;

If any one second information includes described first in corresponding second information of the multiple first data packet The feedback information of data packet is that NACK and number of retransmissions are greater than or equal to preset times, then the second protocol layer is according to described the One information and second information determine that the feedback information of second data packet is NACK.

It optionally, further include the segment identification of second data packet in the first information, the segment identification is used for Indicate whether for the last one segmentation of second data packet.

Optionally, System Frame Number of the mark of first data packet based on the radio frames for carrying first data packet with And the subframe numbers of subframe indicate.

Optionally, transmitting terminal 10 is also used to: if it is determined that the feedback information of second data packet is NACK, then to described the Two data packets are retransmitted.

Optionally, first protocol layer includes MAC layer, and the second protocol layer includes rlc layer.

Optionally, the retransmission protocol includes HARQ protocol.

Transmitting terminal in the communication system of the present embodiment can be used for executing Fig. 2, Fig. 3 A, method shown in Fig. 4 A or Fig. 5 A The technical solution of embodiment, the receiving end in the communication system of the present embodiment, can be used for executing embodiment of the method shown in Fig. 6 Technical solution, it is similar that the realization principle and technical effect are similar, and details are not described herein again.

Also a kind of storage medium of the present invention, when the instruction in the storage medium is executed by the processor 701 of transmitting terminal 10, So that a kind of method that transmitting terminal is able to carry out determining feedback, this method comprises:

Based on retransmission protocol, the first data packet of the first protocol layer is sent to receiving end, is wrapped in first data packet Include the second data packet of second protocol layer;

Receive the feedback information for first data packet that the receiving end returns, the feedback information include ACK or NACK;

According to the feedback information of first data packet, the feedback information of second data packet is determined.

Optionally, described according to described first when second data packet is encapsulated in first data packet The feedback information of data packet determines the feedback information of second data packet, comprising:

If the feedback information of first data packet is ACK, it is determined that the feedback information of second data packet is ACK;

If the feedback information of first data packet is NACK and number of retransmissions is greater than or equal to preset times, it is determined that institute The feedback information for stating the second data packet is NACK.

Optionally, described according to when second data packet, which is split, is encapsulated in multiple first data packets The feedback information of first data packet determines the feedback information of second data packet, comprising:

If the feedback information of the multiple first data packet is all ACK, it is determined that the feedback of second data packet Information is ACK;

If the feedback information of any one the first data packet is NACK and retransmits secondary in the multiple first data packet Number is greater than or equal to preset times, it is determined that the feedback information of second data packet is NACK.

Optionally, described to be based on retransmission protocol, the first data packet of the first protocol layer is sent to receiving end, comprising:

First protocol layer of the transmitting terminal is based on retransmission protocol, and the first data packet of first protocol layer is sent to Receiving end;

The method also includes: first protocol layer sends the first information to the second protocol layer;First letter Breath includes the mark of first data packet and the mark of second data packet;

The feedback information according to first data packet, determines the feedback information of second data packet, comprising:

First protocol layer sends the second letter to the second protocol layer according to the feedback information of first data packet Breath, second information includes: the mark of first data packet and the feedback information of first data packet;

The second protocol layer determines the feedback of second data packet according to the first information and second information Information.

Optionally, first protocol layer is sent out according to the feedback information of first data packet to the second protocol layer Send the second information, comprising:

If the feedback information of first data packet is ACK, the second information is sent to the second protocol layer;

If the feedback information of first data packet is NACK, and the number of retransmissions of first data packet is greater than or equal to Preset times then send the second information to the second protocol layer.

Optionally, the method also includes:

If the feedback information of first data packet is NACK, but the number of retransmissions of first data packet is less than described pre- If number, then the second information is not sent to the second protocol layer.

Optionally, when second data packet is encapsulated in first data packet, the second protocol layer root According to the first information and second information, the feedback information of second data packet is determined, comprising:

If the feedback information for first data packet for including in second information is ACK, the second protocol layer According to the first information and second information, determine that the feedback information of second data packet is ACK;

If the feedback information for first data packet for including in second information is NACK, the second protocol layer According to the first information and second information, determine that the feedback information of second data packet is NACK.

Optionally, when second data packet, which is split, is encapsulated in multiple first data packets, first agreement Layer to the second protocol layer send the second information include: first protocol layer to the second protocol layer send with it is described more Corresponding second information of a first data packet;

The second protocol layer determines the feedback of second data packet according to the first information and second information Information, comprising:

If in corresponding second information of the multiple first data packet including the feedback information of first data packet It is ACK, then the second protocol layer determines the anti-of second data packet according to the first information and second information Feedforward information is ACK;

If any one second information includes described first in corresponding second information of the multiple first data packet The feedback information of data packet is NACK, then the second protocol layer determines institute according to the first information and second information The feedback information for stating the second data packet is NACK.

Optionally, first protocol layer is sent out according to the feedback information of first data packet to the second protocol layer Send the second information, comprising:

First protocol layer is after the feedback information for receiving first data packet, by the mark of first data packet Know and the carrying of the feedback information of first data packet is sent to the second protocol layer in the second information.

Optionally, when second data packet is encapsulated in first data packet, the second protocol layer root According to the first information and second information, the feedback information of second data packet is determined, comprising:

If the feedback information for first data packet for including in second information is ACK, the second protocol layer According to the first information and second information, determine that the feedback information of second data packet is ACK;

If the feedback information for first data packet for including in second information be NACK, and number of retransmissions be greater than or Equal to preset times, then the second protocol layer determines second data according to the first information and second information The feedback information of packet is NACK.

Optionally, when second data packet, which is split, is encapsulated in multiple first data packets, first agreement Layer sends second information to the second protocol layer, comprising: first protocol layer to the second protocol layer send with Corresponding second information of the multiple first data packet;

The second protocol layer determines the feedback of second data packet according to the first information and second information Information, comprising:

If in corresponding second information of the multiple first data packet including the feedback information of first data packet It is ACK, then the second protocol layer determines the anti-of second data packet according to the first information and second information Feedforward information is ACK;

If any one second information includes described first in corresponding second information of the multiple first data packet The feedback information of data packet is that NACK and number of retransmissions are greater than or equal to preset times, then the second protocol layer is according to described the One information and second information determine that the feedback information of second data packet is NACK.

It optionally, further include the segment identification of second data packet in the first information, the segment identification is used for Indicate whether for the last one segmentation of second data packet.

Optionally, System Frame Number of the mark of first data packet based on the radio frames for carrying first data packet with And the subframe numbers of subframe indicate.

Optionally, the method also includes: if it is determined that the feedback information of second data packet is NACK, then to described the Two data packets are retransmitted.

Optionally, first protocol layer includes MAC layer, and the second protocol layer includes rlc layer.

Optionally, the retransmission protocol includes HARQ protocol.

Also a kind of storage medium of the present invention, when the instruction in the storage medium is executed by the processor 802 of receiving end 20, So that a kind of method that receiving end is able to carry out determining feedback, this method comprises:

The first data packet of the first protocol layer that transmitting terminal is sent based on retransmission protocol is received, is wrapped in first data packet Include the second data packet of second protocol layer;

According to first data packet, the feedback information of first data packet, the feedback are returned to the transmitting terminal Information includes ACK or NACK, so that the transmitting terminal determines the feedback information of second data packet according to the feedback information.

Optionally, first protocol layer includes MAC layer, and the second protocol layer includes rlc layer.

Optionally, the retransmission protocol includes HARQ protocol.

Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above-mentioned each method embodiment can lead to The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer readable storage medium.The journey When being executed, execution includes the steps that above-mentioned each method embodiment to sequence;And storage medium above-mentioned include: ROM, RAM, magnetic disk or The various media that can store program code such as person's CD.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into Row equivalent replacement;And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution The range of scheme.

Claims (56)

1. a kind of method of determining feedback, which is characterized in that be applied to transmitting terminal, which comprises
Based on retransmission protocol, the first data packet of the first protocol layer is sent to receiving end, includes the in first data packet Second data packet of two protocol layers;
The feedback information for first data packet that the receiving end returns is received, the feedback information includes affirmative acknowledgement ACK Or negative response NACK;
According to the feedback information of first data packet, the feedback information of second data packet is determined.
2. the method according to claim 1, wherein when second data packet is encapsulated in one described first When data packet, the feedback information according to first data packet determines the feedback information of second data packet, comprising:
If the feedback information of first data packet is ACK, it is determined that the feedback information of second data packet is ACK;
If the feedback information of first data packet is that NACK and number of retransmissions are greater than or equal to preset times, it is determined that described the The feedback information of two data packets is NACK.
3. the method according to claim 1, wherein when second data packet be split be encapsulated in it is multiple described When the first data packet, the feedback information according to first data packet determines the feedback information of second data packet, packet It includes:
If the feedback information of the multiple first data packet is all ACK, it is determined that the feedback information of second data packet For ACK;
If the feedback information of any one the first data packet is NACK in the multiple first data packet and number of retransmissions is big In or equal to preset times, it is determined that the feedback information of second data packet is NACK.
4. method according to claim 1-3, which is characterized in that it is described to be based on retransmission protocol, by the first agreement First data packet of layer is sent to receiving end, comprising:
First protocol layer of the transmitting terminal is based on retransmission protocol, and the first data packet of first protocol layer is sent to reception End;
The method also includes: first protocol layer sends the first information to the second protocol layer;The first information packet Include the mark of first data packet and the mark of second data packet;
The feedback information according to first data packet, determines the feedback information of second data packet, comprising:
First protocol layer sends the second information to the second protocol layer according to the feedback information of first data packet, Second information includes: the mark of first data packet and the feedback information of first data packet;
The second protocol layer determines the feedback letter of second data packet according to the first information and second information Breath.
5. according to the method described in claim 4, it is characterized in that, first protocol layer is according to the anti-of first data packet Feedforward information sends the second information to the second protocol layer, comprising:
If the feedback information of first data packet is ACK, the second information is sent to the second protocol layer;
If the feedback information of first data packet is NACK, and the number of retransmissions of first data packet is more than or equal to default Number then sends the second information to the second protocol layer.
6. according to the method described in claim 5, it is characterized in that, the method also includes:
If the feedback information of first data packet is NACK, but the number of retransmissions of first data packet is less than described default time Number does not then send the second information to the second protocol layer.
7. method according to claim 5 or 6, which is characterized in that when second data packet is encapsulated in described in one When the first data packet, the second protocol layer determines second data packet according to the first information and second information Feedback information, comprising:
If the feedback information for first data packet for including in second information be ACK, the second protocol layer according to The first information and second information determine that the feedback information of second data packet is ACK;
If the feedback information for first data packet for including in second information be NACK, the second protocol layer according to The first information and second information determine that the feedback information of second data packet is NACK.
8. method according to claim 5 or 6, which is characterized in that when second data packet be split be encapsulated in it is multiple When first data packet, it includes: first agreement that first protocol layer, which sends the second information to the second protocol layer, Layer sends second information corresponding with the multiple first data packet to the second protocol layer;
The second protocol layer determines the feedback letter of second data packet according to the first information and second information Breath, comprising:
If including that the feedback information of first data packet is in corresponding second information of the multiple first data packet ACK, then the second protocol layer determines the feedback letter of second data packet according to the first information and second information Breath is ACK;
If any one second information includes first data in corresponding second information of the multiple first data packet The feedback information of packet is NACK, then the second protocol layer is according to the first information and second information, determines described the The feedback information of two data packets is NACK.
9. according to the method described in claim 4, it is characterized in that, first protocol layer is according to the anti-of first data packet Feedforward information sends the second information to the second protocol layer, comprising:
First protocol layer after the feedback information for receiving first data packet, by the mark of first data packet with And the feedback information carrying of first data packet is sent to the second protocol layer in the second information.
10. according to the method described in claim 9, it is characterized in that, when second data packet is encapsulated in one described the When one data packet, the second protocol layer determines second data packet according to the first information and second information Feedback information, comprising:
If the feedback information for first data packet for including in second information be ACK, the second protocol layer according to The first information and second information determine that the feedback information of second data packet is ACK;
If the feedback information for first data packet for including in second information is NACK, and number of retransmissions is greater than or equal to Preset times, then the second protocol layer determines second data packet according to the first information and second information Feedback information is NACK.
11. according to the method described in claim 9, it is characterized in that, being encapsulated in multiple institutes when second data packet is split When stating the first data packet, first protocol layer sends second information to the second protocol layer, comprising: first association It discusses layer and sends second information corresponding with the multiple first data packet to the second protocol layer;
The second protocol layer determines the feedback letter of second data packet according to the first information and second information Breath, comprising:
If including that the feedback information of first data packet is in corresponding second information of the multiple first data packet ACK, then the second protocol layer determines the feedback letter of second data packet according to the first information and second information Breath is ACK;
If any one second information includes first data in corresponding second information of the multiple first data packet The feedback information of packet is NACK and number of retransmissions is greater than or equal to preset times, then the second protocol layer is according to first letter Breath and second information determine that the feedback information of second data packet is NACK.
12. according to the described in any item methods of claim 4-11, which is characterized in that further include described in the first information The segment identification of two data packets, the segment identification are used to indicate whether as the last one segmentation of second data packet.
13. according to the described in any item methods of claim 4-12, which is characterized in that the mark of first data packet is based on holding The subframe numbers of the System Frame Number and subframe that carry the radio frames of first data packet indicate.
14. the method according to any one of claim 2,3,5-8,10-12, which is characterized in that the method also includes: If it is determined that the feedback information of second data packet is NACK, then second data packet is retransmitted.
15. -14 described in any item methods according to claim 1, which is characterized in that first protocol layer includes media access MAC layer is controlled, the second protocol layer includes wireless spread-spectrum technology rlc layer.
16. -15 described in any item methods according to claim 1, which is characterized in that the retransmission protocol includes the automatic weight of mixing Pass request HARQ protocol.
17. a kind of method of determining feedback, which is characterized in that be applied to receiving end, which comprises
The first data packet of the first protocol layer that transmitting terminal is sent based on retransmission protocol is received, including the in first data packet Second data packet of two protocol layers;
According to first data packet, the feedback information of first data packet, the feedback information are returned to the transmitting terminal Including affirmative acknowledgement ACK or negative response NACK, so that the transmitting terminal determines second data according to the feedback information The feedback information of packet.
18. according to the method for claim 17, which is characterized in that first protocol layer includes media access control MAC Layer, the second protocol layer includes wireless spread-spectrum technology rlc layer.
19. method described in 7 or 18 according to claim 1, which is characterized in that the retransmission protocol includes that mixed automatic retransfer is asked Seek HARQ protocol.
20. a kind of transmitting terminal characterized by comprising processor and communication interface;
The processor is sent the first data packet of the first protocol layer by the communication interface for being based on retransmission protocol It include the second data packet of second protocol layer to receiving end, in first data packet;
The communication interface is also used to receive the feedback information for first data packet that the receiving end returns, the feedback Information includes affirmative acknowledgement ACK or negative response NACK;
The processor is also used to the feedback information according to first data packet, determines the feedback letter of second data packet Breath.
21. transmitting terminal according to claim 20, which is characterized in that when second data packet is encapsulated in described in one When the first data packet, the processor determines the feedback of second data packet according to the feedback information of first data packet Information specifically includes:
If the feedback information of first data packet is ACK, it is determined that the feedback information of second data packet is ACK;
If the feedback information of first data packet is that NACK and number of retransmissions are greater than or equal to preset times, it is determined that described the The feedback information of two data packets is NACK.
22. transmitting terminal according to claim 20, which is characterized in that when second data packet be split be encapsulated in it is multiple When first data packet, the processor determines second data packet according to the feedback information of first data packet Feedback information specifically includes:
If the feedback information of the multiple first data packet is all ACK, it is determined that the feedback information of second data packet For ACK;
If the feedback information of any one the first data packet is NACK in the multiple first data packet and number of retransmissions is big In or equal to preset times, it is determined that the feedback information of second data packet is NACK.
23. according to the described in any item transmitting terminals of claim 20-22, which is characterized in that the processor is assisted based on retransmitting View, is sent to receiving end for the first data packet of the first protocol layer by the communication interface, specifically includes: the first protocol layer base In retransmission protocol, the first data packet of first protocol layer is sent to by receiving end by the communication interface;
The processor is also used to first protocol layer to the second protocol layer and sends the first information;The first information The mark of mark and second data packet including first data packet;
The processor determines the feedback information of second data packet, specifically according to the feedback information of first data packet Include:
First protocol layer sends the second information to the second protocol layer according to the feedback information of first data packet, Second information includes: the mark of first data packet and the feedback information of first data packet;
The second protocol layer determines the feedback letter of second data packet according to the first information and second information Breath.
24. transmitting terminal according to claim 23, which is characterized in that first protocol layer is according to first data packet Feedback information, to the second protocol layer send the second information, comprising:
If the feedback information of first data packet is ACK, the second information is sent to the second protocol layer;
If the feedback information of first data packet is NACK, and the number of retransmissions of first data packet is more than or equal to default Number then sends the second information to the second protocol layer.
25. transmitting terminal according to claim 24, which is characterized in that the processor is also used to:
If the feedback information of first data packet is NACK, but the number of retransmissions of first data packet is less than described default time Number does not then send the second information to the second protocol layer.
26. the transmitting terminal according to claim 24 or 25, which is characterized in that when second data packet is encapsulated in one When first data packet, the second protocol layer determines second number according to the first information and second information According to the feedback information of packet, comprising:
If the feedback information for first data packet for including in second information be ACK, the second protocol layer according to The first information and second information determine that the feedback information of second data packet is ACK;
If the feedback information for first data packet for including in second information be NACK, the second protocol layer according to The first information and second information determine that the feedback information of second data packet is NACK.
27. the transmitting terminal according to claim 24 or 25, which is characterized in that be encapsulated in when second data packet is split When multiple first data packets, it includes: described first that first protocol layer, which sends the second information to the second protocol layer, Protocol layer sends second information corresponding with the multiple first data packet to the second protocol layer;
The second protocol layer determines the feedback letter of second data packet according to the first information and second information Breath, comprising:
If including that the feedback information of first data packet is in corresponding second information of the multiple first data packet ACK, then the second protocol layer determines the feedback letter of second data packet according to the first information and second information Breath is ACK;
If any one second information includes first data in corresponding second information of the multiple first data packet The feedback information of packet is NACK, then the second protocol layer is according to the first information and second information, determines described the The feedback information of two data packets is NACK.
28. transmitting terminal according to claim 23, which is characterized in that first protocol layer is according to first data packet Feedback information, to the second protocol layer send the second information, comprising:
First protocol layer after the feedback information for receiving first data packet, by the mark of first data packet with And the feedback information carrying of first data packet is sent to the second protocol layer in the second information.
29. transmitting terminal according to claim 28, which is characterized in that when second data packet is encapsulated in described in one When the first data packet, the second protocol layer determines second data packet according to the first information and second information Feedback information, comprising:
If the feedback information for first data packet for including in second information be ACK, the second protocol layer according to The first information and second information determine that the feedback information of second data packet is ACK;
If the feedback information for first data packet for including in second information is NACK, and number of retransmissions is greater than or equal to Preset times, then the second protocol layer determines second data packet according to the first information and second information Feedback information is NACK.
30. transmitting terminal according to claim 28, which is characterized in that when second data packet be split be encapsulated in it is multiple When first data packet, first protocol layer sends second information to the second protocol layer, comprising: described first Protocol layer sends second information corresponding with the multiple first data packet to the second protocol layer;
The second protocol layer determines the feedback letter of second data packet according to the first information and second information Breath, comprising:
If including that the feedback information of first data packet is in corresponding second information of the multiple first data packet ACK, then the second protocol layer determines the feedback letter of second data packet according to the first information and second information Breath is ACK;
If any one second information includes first data in corresponding second information of the multiple first data packet The feedback information of packet is NACK and number of retransmissions is greater than or equal to preset times, then the second protocol layer is according to first letter Breath and second information determine that the feedback information of second data packet is NACK.
31. according to the described in any item transmitting terminals of claim 23-30, which is characterized in that further include institute in the first information The segment identification of the second data packet is stated, the segment identification is used to indicate whether as the last one segmentation of second data packet.
32. according to the described in any item transmitting terminals of claim 23-31, which is characterized in that the mark base of first data packet It is indicated in the System Frame Number for the radio frames for carrying first data packet and the subframe numbers of subframe.
33. the transmitting terminal according to any one of claim 21,22,24-27,29-31, which is characterized in that the processing Device is also used to: if it is determined that the feedback information of second data packet is NACK, then being retransmitted to second data packet.
34. according to the described in any item transmitting terminals of claim 20-33, which is characterized in that first protocol layer includes media Access control MAC layer, the second protocol layer include wireless spread-spectrum technology rlc layer.
35. according to the described in any item transmitting terminals of claim 20-34, which is characterized in that the retransmission protocol includes mixing certainly Dynamic retransmission request HARQ protocol.
36. a kind of receiving end characterized by comprising communication interface and processor;
The communication interface, it is described for receiving the first data packet of the first protocol layer that transmitting terminal is sent based on retransmission protocol Second data packet of the second protocol layer for including in the first data packet;
The processor, for determining the feedback information of first data packet, the feedback letter according to first data packet Breath includes affirmative acknowledgement ACK or negative response NACK;
The communication interface is also used to return the feedback information of first data packet to the transmitting terminal, so that the transmission End determines the feedback information of second data packet according to the feedback information.
37. receiving end according to claim 36, which is characterized in that first protocol layer includes media access control MAC layer, the second protocol layer include wireless spread-spectrum technology rlc layer.
38. the receiving end according to claim 36 or 37, which is characterized in that the retransmission protocol includes mixed automatic retransfer Request HARQ protocol.
39. a kind of communication system characterized by comprising transmitting terminal and receiving end;
The transmitting terminal, it is described for based on retransmission protocol, the first data packet of the first protocol layer to be sent to the receiving end It include the second data packet of second protocol layer in first data packet;
The receiving end, first data packet sent for receiving the transmitting terminal, and according to first data packet, to The transmitting terminal returns to the feedback information of first data packet, and the feedback information includes affirmative acknowledgement ACK or negative response NACK;
The transmitting terminal is also used to receive the feedback information for first data packet that the receiving end returns, according to described the The feedback information of one data packet determines the feedback information of second data packet.
40. system according to claim 39, which is characterized in that when second data packet is encapsulated in one described When one data packet, the transmitting terminal determines the feedback letter of second data packet according to the feedback information of first data packet Breath, specifically includes:
If the feedback information of first data packet is ACK, it is determined that the feedback information of second data packet is ACK;
If the feedback information of first data packet is that NACK and number of retransmissions are greater than or equal to preset times, it is determined that described the The feedback information of two data packets is NACK.
41. system according to claim 39, which is characterized in that be encapsulated in multiple institutes when second data packet is split When stating the first data packet, the transmitting terminal determines the anti-of second data packet according to the feedback information of first data packet Feedforward information specifically includes:
If the feedback information of the multiple first data packet is all ACK, it is determined that the feedback information of second data packet For ACK;
If the feedback information of any one the first data packet is NACK in the multiple first data packet and number of retransmissions is big In or equal to preset times, it is determined that the feedback information of second data packet is NACK.
42. according to the described in any item systems of claim 39-41, which is characterized in that the transmitting terminal is based on retransmission protocol, will First data packet of the first protocol layer is sent to receiving end, specifically includes:
First protocol layer of the transmitting terminal is based on retransmission protocol, and the first data packet of first protocol layer is sent to reception End;
The transmitting terminal is also used to: first protocol layer sends the first information to the second protocol layer;The first information The mark of mark and second data packet including first data packet;
The transmitting terminal determines the feedback information of second data packet, specifically according to the feedback information of first data packet Include:
First protocol layer sends the second information to the second protocol layer according to the feedback information of first data packet, Second information includes: the mark of first data packet and the feedback information of first data packet;
The second protocol layer determines the feedback letter of second data packet according to the first information and second information Breath.
43. system according to claim 42, which is characterized in that first protocol layer is according to first data packet Feedback information sends the second information to the second protocol layer, comprising:
If the feedback information of first data packet is ACK, the second information is sent to the second protocol layer;
If the feedback information of first data packet is NACK, and the number of retransmissions of first data packet is more than or equal to default Number then sends the second information to the second protocol layer.
44. system according to claim 43, which is characterized in that the transmitting terminal is also used to:
If the feedback information of first data packet is NACK, but the number of retransmissions of first data packet is less than described default time Number does not then send the second information to the second protocol layer.
45. the system according to claim 43 or 44, which is characterized in that when second data packet is encapsulated in an institute When stating the first data packet, the second protocol layer determines second data according to the first information and second information The feedback information of packet, comprising:
If the feedback information for first data packet for including in second information be ACK, the second protocol layer according to The first information and second information determine that the feedback information of second data packet is ACK;
If the feedback information for first data packet for including in second information be NACK, the second protocol layer according to The first information and second information determine that the feedback information of second data packet is NACK.
46. the system according to claim 43 or 44, which is characterized in that when second data packet be split be encapsulated in it is more When a first data packet, it includes: first association that first protocol layer, which sends the second information to the second protocol layer, It discusses layer and sends second information corresponding with the multiple first data packet to the second protocol layer;
The second protocol layer determines the feedback letter of second data packet according to the first information and second information Breath, comprising:
If including that the feedback information of first data packet is in corresponding second information of the multiple first data packet ACK, then the second protocol layer determines the feedback letter of second data packet according to the first information and second information Breath is ACK;
If any one second information includes first data in corresponding second information of the multiple first data packet The feedback information of packet is NACK, then the second protocol layer is according to the first information and second information, determines described the The feedback information of two data packets is NACK.
47. system according to claim 42, which is characterized in that first protocol layer is according to first data packet Feedback information sends the second information to the second protocol layer, comprising:
First protocol layer after the feedback information for receiving first data packet, by the mark of first data packet with And the feedback information carrying of first data packet is sent to the second protocol layer in the second information.
48. system according to claim 47, which is characterized in that when second data packet is encapsulated in one described When one data packet, the second protocol layer determines second data packet according to the first information and second information Feedback information, comprising:
If the feedback information for first data packet for including in second information be ACK, the second protocol layer according to The first information and second information determine that the feedback information of second data packet is ACK;
If the feedback information for first data packet for including in second information is NACK, and number of retransmissions is greater than or equal to Preset times, then the second protocol layer determines second data packet according to the first information and second information Feedback information is NACK.
49. system according to claim 47, which is characterized in that be encapsulated in multiple institutes when second data packet is split When stating the first data packet, first protocol layer sends second information to the second protocol layer, comprising: first association It discusses layer and sends second information corresponding with the multiple first data packet to the second protocol layer;
The second protocol layer determines the feedback letter of second data packet according to the first information and second information Breath, comprising:
If including that the feedback information of first data packet is in corresponding second information of the multiple first data packet ACK, then the second protocol layer determines the feedback letter of second data packet according to the first information and second information Breath is ACK;
If any one second information includes first data in corresponding second information of the multiple first data packet The feedback information of packet is NACK and number of retransmissions is greater than or equal to preset times, then the second protocol layer is according to first letter Breath and second information determine that the feedback information of second data packet is NACK.
50. according to the described in any item systems of claim 42-49, which is characterized in that further include described in the first information The segment identification of second data packet, the segment identification are used to indicate whether as the last one segmentation of second data packet.
51. according to the described in any item systems of claim 42-50, which is characterized in that the mark of first data packet is based on The subframe numbers of the System Frame Number and subframe that carry the radio frames of first data packet indicate.
52. the system according to any one of claim 40,41,43-46,48-52, which is characterized in that the transmitting terminal It is also used to: if it is determined that the feedback information of second data packet is NACK, then second data packet being retransmitted.
53. according to the described in any item systems of claim 39-52, which is characterized in that first protocol layer includes that media connect Enter and control MAC layer, the second protocol layer includes wireless spread-spectrum technology rlc layer.
54. according to the described in any item systems of claim 39-53, which is characterized in that the retransmission protocol includes that mixing is automatic Retransmission request HARQ protocol.
55. a kind of storage medium, is stored thereon with computer instruction, which is characterized in that the computer instruction is held by processor Claim 1-16 described in any item methods are realized when row.
56. a kind of storage medium, is stored thereon with computer instruction, which is characterized in that the computer instruction is held by processor Claim 17-19 described in any item methods are realized when row.
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