CN101192896B - Error indicative processing method, transmission device, receiving device and system - Google Patents
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Abstract
The invention relates to the field of the mobile communication, in particular relates to a processing method, a sender device, a receiver device and a system for error indication, which are used for lowering the delay in which the receiver sends the HARQ error indication to the sender and simplifying the processing flow. In the invention, the receiver generates the HARQ error indication when the receiver detects the HARQ error; the receiver determines the channel in which the HARQ error indication is sent and sends the HARQ error indication as the single message to the sender. The adoption of the technical proposal of the invention can lower the delay in which the receiver sends the HARQ error indication to the sender and simplify the processing flow of the error indication.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to processing method, sending ending equipment, receiving device and the system of wrong indication.
Background technology
At double-deck ARQ (Automatic Repeat reQuest, automatic repeat requests) in the structure, ARQ is positioned on the HARQ (Hybrid Automatic Repeat reQuest mixes automatic repeat requests), is responsible for retransmitting the HARQ layer because the packet that does not have transmission success that residual error causes.In the standard of 3GPP R5, the ARQ entity of transmitting terminal will not be transmitted success according to which packet of state report judging that connects receiving terminal ARQ entity feedback, thereby retransmits in view of the above, realizes detection and solution to residual error.But the status report between the ARQ entity can be introduced bigger time-delay alternately usually; for the packet back off time that reduces to bring thus; at LTE (Long Term Evolution; Long Term Evolution) proposes to detect the residual error of HARQ in the project at the HARQ layer; and notify ARQ to retransmit, reach the purpose that reduces ARQ layer back off time.
The HARQ residual error is divided three classes:
The first kind: the HARQ layer reaches maximum retransmission transmission success not yet;
Second class: it is wrong that receiving terminal detects packet, and feedback NACK (Not ACKnowledgement, non-affirmation is replied), but be sent out end and be decoded as ACK (ACKnowledgement, confirm to reply), cause transmitting terminal to take for packet by correct reception (hereinafter, this mistake is represented with NACK/ACK);
The 3rd class: because to the signaling decoding mistake, DTX (Discontinuous Transmission, discontinuous transmission) is sent out end and is decoded as the ACK feedback, cause transmitting terminal to take for packet by correct reception (hereinafter, this mistake is represented with DTX/ACK).
In addition, if in the process that HARQ retransmits, the signaling mistake that ACK is misinterpreted as NACK having taken place, then may cause the waste (hereinafter, this mistake is represented with ACK/NACK) of resource.
As seen, above-mentioned four kinds of mistakes may appear in HARQ.Detect in the scheme of HARQ mistake at the HARQ layer, ACK/NACK, DTX/ACK and NACK/ACK, three kinds of mistakes are detected at receiving terminal HARQ layer, when receiving terminal HARQ layer detects the HARQ mistake, notify transmitting terminal by send wrong indication to transmitting terminal.
In downlink transfer, the indication of HARQ mistake need send to eNB (Evolutional Node B, evolution base station) from UE (User Equipment, subscriber equipment), adopts following mechanism in the existing scheme:
(1) UE is by MAC (Media Access Control; The medium access control) PDU (ProtocolData Unit protocol Data Unit) incidentally gives eNB with the indication of HARQ mistake;
When adopting mechanism (1), after UE detects the HARQ mistake and generates the indication of HARQ mistake, if there are up data to need to send, then UE is packaged into a MAC PDU with the indication of HARQ mistake with upstream data, send to eNB by UL-SCH (UpLink Shared CHannel, Uplink Shared Channel).After eNB receives MAC PDU, parse data and HARQ error identification information according to wherein indication territory.
As seen, adopt in the mechanism (1) method of HARQ mistake indication incidentally, require UE after generating the indication of HARQ mistake, corresponding uplink transmission data must be arranged,, then the indication of HARQ mistake can't be sent to eNB if current do not have a upstream data by MAC PDU.
(2) UE adopts the dispatch request process that the indication of HARQ mistake is sent to eNB.
When adopting mechanism (2), the flow process that UE sends the indication of HARQ mistake to eNB may further comprise the steps as shown in Figure 1:
Step S101, eNB sends HARQ control signaling to UE;
Step S102, UE detects the HARQ mistake according to the HARQ control signaling that receives, if detect the HARQ mistake, carries out step S103, otherwise directly finishes;
Step S103, UE generate the indication of HARQ mistake;
Step S104, UE is sending dispatch request information to eNB on the Random Access Channel synchronously;
When specific implementation, step S103 and step S104 do not have certain sequencing.
After step S105, eNB receive this dispatch request information, be that UE distributes UL-SCH ascending resource (Grant) by the uplink scheduling channel;
Step S106, UE utilize this ascending resource that the indication of HARQ mistake is sent to eNB.
Because Random Access Channel is based on the channel of competition synchronously, conflict will cause correctly resolution scheduling request of eNB, thereby the indication of HARQ mistake also can't send to eNB.General by setting the timer head it off, when regularly overflowing,, then initiate new dispatch request if still do not receive the uplink scheduling signaling.
As seen, adopt the method that sends dispatch request in the mechanism (2) by synchronous Random Access Channel, need between UE and the eNB at least three times mutual, could send to eNB to the indication of HARQ mistake, it is bigger to send the time delay that the HARQ mistake indicates, the process complexity.
In addition, at present, the form of HARQ mistake indication can comprise UE ID (UEIDentity, customer equipment identification), information category, type of error (Error Type) and error identification information as shown in Figure 2, wherein:
UE ID is used to indicate the UE that sends this HARQ mistake indication;
Information category is used to indicate that this information is the indication of HARQ mistake, makes the indication of HARQ mistake to distinguish with other information of same channel;
Type of error is used to identify the type that this HARQ mistake is indicated indicated HARQ mistake;
Owing to when specific implementation, can determine whether as required introducing ' type of error ' field, also can determine the bit number that this field is shared as required.
Error identification information, in the HARQ mistake indication as shown in Figure 2, error identification information comprises HARQ process (process) ID (IDentity, sign) and timestamp (Time stamp), wherein:
The HARQ process ID is used to indicate the process that makes a mistake;
Timestamp is used to indicate the temporal information that the HARQ mistake takes place, and this temporal information can be frame number, timeslot number, also can be the concrete time.
After receiving the indication of HARQ mistake, eNB can determine the process and the moment that the HARQ mistake takes place according to wherein HARQ process ID and timestamp, and then determines to take place in transmission the data of HARQ mistake.
As seen, comprise HARQ process ID and timestamp simultaneously in the error identification information in existing HARQ mistake indication, required bit number is more.In order to simplify the indication of HARQ mistake, reduce the required bit number of HARQ mistake indication, at a TTI (Transmission Time Interval, Transmission Time Interval) under the situation of a corresponding HARQ process, can the form of the indication of the HARQ mistake shown in Fig. 2 be optimized, order error identification information wherein includes only timestamp.This is owing to have only under the situation of a HARQ process at a TTI, a definite timestamp can unique correspondence go out a HARQ process ID, therefore, eNB is after receiving the indication of HARQ mistake, can determine the moment that the HARQ mistake takes place according to the timestamp that wherein carries, thereby know the HARQ process that the HARQ mistake takes place, and then determine in transmission, to take place the data of HARQ mistake.
Yet, above-mentioned optimization is only applicable under the situation of the corresponding HARQ process of a TTI, how all to simplify the indication of HARQ mistake under the situation of the corresponding HARQ process of a TTI and under the situation of the corresponding a plurality of HARQ processes of TTI, reducing the required bit number of HARQ mistake indication, is that those skilled in the art wish the problem that solves.
Summary of the invention
The invention provides processing method, sending ending equipment, receiving device and the system of wrong indication, send the time delay of HARQ mistake indication to transmitting terminal, and simplify the handling process of this mistake indication in order to reduce receiving terminal.
In order to solve the problems of the technologies described above, the invention provides a kind of processing method of wrong indication, may further comprise the steps:
Receiving terminal generates the indication of HARQ mistake detecting when mixing automatic repeat requests HARQ mistake; And
Described receiving terminal determines to send the channel of described HARQ mistake indication, by described channel described HARQ mistake indication is sent to transmitting terminal as independent message, wherein, described channel comprises synchronous Random Access Channel or is the dedicated channel that described HARQ mistake indication is provided with.
Further, said method also can have following characteristics: described receiving terminal is double or more than twice described HARQ mistake indication is sent to described transmitting terminal.
Further, said method also can have following characteristics: described transmitting terminal returns the response of described HARQ mistake indication after receiving described HARQ mistake indication to described receiving terminal;
Described receiving terminal if set the response that does not receive described HARQ mistake indication in the time limit first, then sends to described transmitting terminal with described HARQ mistake indication after described HARQ mistake indication is sent to described transmitting terminal again; Otherwise, no longer send described HARQ mistake indication to described transmitting terminal.
Further, said method also can have following characteristics: maximum retransmission is set, when described receiving terminal indicates the number of times that sends to described transmitting terminal to reach described maximum retransmission described HARQ mistake again, no longer send described HARQ mistake indication to described transmitting terminal.
Further, said method also can have following characteristics: described transmitting terminal returns the response that described HARQ mistake is indicated by the uplink scheduling channel to described receiving terminal, and the response of described HARQ mistake indication is that resource allocation field is that sky or transport block length indication field are 0 uplink scheduling channel massage;
After described receiving terminal receives the uplink scheduling channel massage, whether be whether sky or transport block length indication field are 0 to judge the whether response of HARQ mistake indication of described uplink scheduling channel massage according to the resource allocation field in the described uplink scheduling channel massage.
Further, said method also can have following characteristics: described receiving terminal detects the HARQ mistake according to the HARQ control signaling that receives.
The present invention also provides a kind of receiving device, comprise that the receiver module that is used to receive message, the automatic repeat requests HARQ control of the mixing signaling that is used for receiving according to described receiver module detect the detection module of HARQ mistake and be used for generating the indication generation module that the HARQ mistake is indicated when described detection module detects the HARQ mistake, described receiving device also comprises sending module, wherein:
Described sending module is determined the channel of the HARQ mistake indication that the described indication generation module of transmission generates, by described channel described HARQ mistake indication is sent as independent message, wherein, described channel comprises synchronous Random Access Channel or is the dedicated channel that described HARQ mistake indication is provided with.
Further, above-mentioned receiving device also can have following characteristics: described receiving device also comprises the response judge module, wherein:
Described response judge module is after described sending module sends described HARQ mistake indication, judge whether described receiver module sets the response that receives described HARQ mistake indication in the time limit first, if, do not reinform described sending module and send described HARQ mistake indication, otherwise, notify described sending module to resend described HARQ mistake indication.
Further, above-mentioned receiving device also can have following characteristics: described receiving device also comprises the re-transmission control module, wherein:
Described response judge module is notified described re-transmission control module judging described receiver module not when first sets the response that receives described HARQ mistake indication in the time limit;
Described re-transmission control module judges whether the number of times that described sending module resends the indication of described HARQ mistake reaches local maximum retransmission of preserving, if, do not reinform described sending module and send described HARQ mistake indication, otherwise, notify described sending module to resend described HARQ mistake indication.
The present invention also provides a kind of processing method of wrong indication, may further comprise the steps:
When receiving terminal detects the HARQ mistake according to the automatic repeat requests HARQ control of the mixing that receives signaling, generate HARQ mistake indication, the error identification information in the described HARQ mistake indication includes only the identification information of the HARQ process that makes a mistake;
Described receiving terminal is when determining to send the indication of HARQ mistake in the second setting time limit after receiving described HARQ control signaling, send described HARQ mistake indication to transmitting terminal, the wherein said second setting time limit is not more than the minimum treat time that a HARQ adds receiving terminal two-way time.
Further, said method also can have following characteristics: processing procedure, empirical value or the emulation of the minimum treat time of described receiving terminal according to described receiving device obtains.
Further, said method also can have following characteristics: the local duration of preserving the described second setting time limit of described transmitting terminal;
After described transmitting terminal receives described HARQ mistake indication, determine to take place the data of HARQ mistake according to the identification information of the HARQ process that makes a mistake in the temporal information that receives described HARQ mistake indication, the duration in the described second setting time limit and the indication of a described HARQ mistake.
Further, said method also can have following characteristics: after described transmitting terminal receives described HARQ mistake indication, the time that receives described HARQ mistake indication is pushed away described second duration of setting the time limit forward obtain very first time point, and described very first time point HARQ forward in two-way time the identification information according to the described HARQ process that makes a mistake match the Transmission Time Interval TTI that the HARQ mistake takes place, thereby determine to take place the data of HARQ mistake.
Further, said method also can have following characteristics: described second sets the time limit is not more than HARQ two-way time;
After described transmitting terminal receives described HARQ mistake indication, determine to take place the data of HARQ mistake according to the identification information of the described HARQ process that makes a mistake.
Further, said method also can have following characteristics: after described transmitting terminal receives described HARQ mistake indication, a time point HARQ forward who receives the indication of a described HARQ mistake in two-way time the identification information according to the described HARQ process that makes a mistake match the TTI that receives described HARQ control signaling, and the described TTI that receives described HARQ control signaling pushed away the TTI that a HARQ obtains taking place the HARQ mistake two-way time forward, thereby determine to take place the data of HARQ mistake.
Further, said method also can have following characteristics: receiving terminal generates the indication of the 2nd HARQ mistake according to detected HARQ mistake;
Described receiving terminal is determined and can be sent described the 2nd HARQ mistake indication to transmitting terminal exceeding described second when sending the indication of HARQ mistake after setting the time limit.
Further, said method also can have following characteristics: under the situation of the corresponding HARQ process of a TTI, the error identification information in described the 2nd HARQ mistake indication includes only the temporal information that makes a mistake.
Further, said method also can have following characteristics: the error identification information in described the 2nd HARQ mistake indication comprises the identification information of the HARQ process that makes a mistake and the temporal information that makes a mistake.
The present invention also provides a kind of treatment system of wrong indication, comprise transmitting terminal and receiving terminal, described receiving terminal comprises that the automatic repeat requests HARQ control of the mixing that is used to receive first receiver module of message and is used for receiving according to described first receiver module signaling detects the detection module of HARQ mistake, described transmitting terminal comprises second receiver module that is used to receive message, described receiving terminal also comprises the first indication generation module and first sending module, described transmitting terminal also comprises processing module, wherein:
The first indication generation module of described receiving terminal generates HARQ mistake indication when described detection module detects the HARQ mistake, the error identification information in the described HARQ mistake indication includes only the identification information of the HARQ process that makes a mistake;
First sending module of described receiving terminal is when determining to send the indication of HARQ mistake in the second setting time limit after described first receiver module is received described HARQ control signaling, send described HARQ mistake indication to described transmitting terminal, the wherein said second setting time limit is not more than the minimum treat time that a HARQ adds receiving terminal two-way time;
Second receiver module of described transmitting terminal receives and exports described HARQ mistake indication;
The processing module of described transmitting terminal receives the data that the temporal information of described HARQ mistake indication, local described second identification information of preserving of setting the duration in time limit and the HARQ process that makes a mistake in the indication of a described HARQ mistake are determined generation HARQ mistake according to described second receiver module.
Further, above-mentioned treatment system also can have following characteristics: described receiving terminal also comprises the second indication generation module, wherein:
The described second indication generation module generates and exports the indication of the 2nd HARQ mistake according to the testing result of described detection module;
Described sending module is determined and can be sent the 2nd HARQ mistake indication of the described second indication generation module output to transmitting terminal exceeding described second when sending the indication of HARQ mistake after setting the time limit.
The present invention also provides a kind of receiving device, comprise that the automatic repeat requests HARQ control of the mixing that is used to receive first receiver module of message and is used for receiving according to described first receiver module signaling detects the detection module of HARQ mistake, described receiving terminal also comprises the first indication generation module and first sending module, wherein:
The described first indication generation module generates HARQ mistake indication when described detection module detects the HARQ mistake, the error identification information in the described HARQ mistake indication includes only the identification information of the HARQ process that makes a mistake;
Described first sending module is when determining to send the indication of HARQ mistake in the second setting time limit after described first receiver module is received described HARQ control signaling, send described HARQ mistake indication, the wherein said second setting time limit is not more than the minimum treat time that a HARQ adds receiving terminal two-way time.
Further, above-mentioned receiving device also can have following characteristics: described receiving device also comprises the second indication generation module, wherein:
The described second indication generation module generates and exports the indication of the 2nd HARQ mistake according to the testing result of described detection module;
Described sending module is determined and can be sent the 2nd HARQ mistake indication of the described second indication generation module output exceeding described second when sending the indication of HARQ mistake after setting the time limit.
The present invention also provides a kind of sending ending equipment, comprises second receiver module that is used to receive message, and described transmitting terminal also comprises processing module, wherein:
The HARQ mistake indication that described second receiver module receives and output receives;
Described processing module receives the data that the temporal information of described HARQ mistake indication, local described second identification information of preserving of setting the duration in time limit and the HARQ process that makes a mistake in the indication of a described HARQ mistake are determined generation HARQ mistake according to described second receiver module.
Beneficial effect of the present invention is as follows:
In the present invention, receiving terminal generates the indication of HARQ mistake when detecting the HARQ mistake; Receiving terminal determines to send the channel of this HARQ mistake indication, by this channel this HARQ mistake indication is sent to transmitting terminal as independent message.Can when having other data to transmit, not transmit separately, and do not need receiving terminal, send the time delay of HARQ mistake indication to transmitting terminal, and simplify the handling process of this mistake indication thereby reduce receiving terminal to the transmitting terminal request resource.
Description of drawings
When Fig. 1 was available technology adopting mechanism (2), UE sent the flow chart of HARQ mistake indication to eNB;
Fig. 2 is the form schematic diagram of HARQ mistake indication in the prior art;
Fig. 3 is in the method (A) of the embodiment of the invention one, and UE is to the flow chart of eNB feedback HARQ mistake indication;
Fig. 4 is in the method (B) of the embodiment of the invention one, and UE is to the flow chart of eNB feedback HARQ mistake indication;
Fig. 5 is a kind of receiving device block diagram in the embodiment of the invention one;
Fig. 6 is the another kind of receiving device block diagram in the embodiment of the invention one;
Fig. 7 is in first example of the embodiment of the invention two, and UE is to the flow chart of eNB feedback HARQ mistake indication;
Fig. 8 is the HARQ error detection in second example of the embodiment of the invention two and sends schematic diagram;
Fig. 9 is the treatment system block diagram of the mistake indication in the embodiment of the invention two.
Embodiment
Core concept of the present invention is: receiving terminal generates the indication of HARQ mistake when detecting the HARQ mistake; Receiving terminal determines to send the channel of this HARQ mistake indication, by this channel this HARQ mistake indication is sent to transmitting terminal as independent message.Send the time delay of HARQ mistake indication thereby reduce receiving terminal to transmitting terminal, and simplify the handling process of this mistake indication.
Below in conjunction with drawings and Examples the present invention is done description further.
Embodiment one
In the present embodiment, when the UE as receiving terminal detects HARQ mistake as the eNB of transmitting terminal, generate the indication of HARQ mistake, and this HARQ mistake indication is directly sent to eNB, thereby the indication of HARQ mistake is fed back to eNB by synchronous Random Access Channel.
Because Random Access Channel is based on the channel of competition synchronously, conflict will cause eNB can't correctly resolve the information that receives from synchronous Random Access Channel, therefore, in the present embodiment, eNB possibly can't correctly resolve the HARQ mistake indication that receives from synchronous Random Access Channel.For the feedback that makes the indication of HARQ mistake reaches certain reliability, can take the feedback method of following two kinds of concrete HARQ mistake indications:
Method (A)
In method (A), improve the reliability of feedback by the number of times that increases the indication of UE transmission HARQ mistake.As shown in Figure 3, in method (A), UE may further comprise the steps to the flow process of eNB feedback HARQ mistake indication:
Step S201, eNB sends HARQ control signaling to UE;
Step S202, UE detects the HARQ mistake according to the HARQ control signaling that receives, if detect the HARQ mistake, carries out step S203, otherwise directly finishes;
Step S203, UE generate the indication of HARQ mistake;
Step S204, UE sends this HARQ mistake indication for many times to eNB continuously by synchronous Random Access Channel.
In this step, this concrete number of times that sends can be obtained by empirical value, also can be determined by emulation.
Method (B)
Because in the present embodiment, UE sends the indication of HARQ mistake by synchronous Random Access Channel to eNB, if eNB correctly receives this HARQ mistake indication, then can send the response that this HARQ mistake is indicated to UE by the uplink scheduling channel, therefore, in method (B), whether the UE basis receives eNB in the first setting time limit judges to the response of HARQ mistake indication whether eNB correctly receives this HARQ mistake indication, thereby whether decision sends this HARQ mistake to eNB again indicates.
As shown in Figure 4, in method (B), UE may further comprise the steps to the flow process of eNB feedback HARQ mistake indication:
Step S301, eNB sends HARQ control signaling to UE;
Step S302, UE detects the HARQ mistake according to the HARQ control signaling that receives, if detect the HARQ mistake, carries out step S203, otherwise directly finishes;
Step S303, UE generate the indication of HARQ mistake;
Step S304, UE sends this HARQ mistake indication by synchronous Random Access Channel to eNB;
If eNB correctly receives this HARQ mistake indication, then will return the response of this HARQ mistake indication to UE by the uplink scheduling channel, this response can be adopted the form of common uplink scheduling channel massage, but for response and other the data of distinguishing this HARQ mistake indication by the uplink scheduling Channel Transmission, in the present embodiment, resource allocation field in the response of HARQ mistake indication is set to sky or the transport block length indication field is set to 0, then after UE receives the uplink scheduling channel massage, can whether be whether sky or transport block length indication field are 0 to judge the response of the whether HARQ mistake indication that receives according to wherein resource allocation field.
Step S305 receives the response of eNB to this HARQ mistake indication if UE sets first in the time limit, then directly finish, and no longer sends this HARQ mistake indication to eNB; Otherwise carry out step S306;
Step S306 judges whether the number of times that resends this HARQ mistake indication reaches maximum retransmission, if directly finish; Otherwise, carry out step S307;
Can be as required or empirical value this maximum retransmission is set.
Step S307 sends this HARQ mistake indication to eNB again, returns step S305.
When specific implementation, can not adopt synchronous Random Access Channel to send the indication of HARQ mistake, but for the indication of HARQ mistake is provided with dedicated channel, receiving terminal send the indication of HARQ mistake by this dedicated channel.
As seen, adopt the technical scheme of present embodiment, receiving terminal can not send to transmitting terminal separately with the indication of HARQ mistake when having other upstream datas, and, determine to send the channel that this HARQ mistake is indicated by receiving terminal, need not send the resource of this HARQ mistake indication to the transmitting terminal request, therefore, can reduce receiving terminal and send the time delay of HARQ mistake indication, and simplify the handling process of this mistake indication to transmitting terminal.
Receiving device in the present embodiment as shown in Figure 5, comprises receiver module 101, detection module 102, indication generation module 103 and sending module 104, wherein:
Sending module 104 is used for definite channel that sends the HARQ mistake indication of indication generation module 103 generations, by this channel the HARQ mistake is indicated as independent message to send.
Corresponding to method (B), the receiving device in the present embodiment can also comprise response judge module 105 as shown in Figure 6, wherein:
Since can be in the method (B) by the transmission number of times that maximum retransmission limits the indication of HARQ mistake is set, therefore, the receiving device in the present embodiment can also comprise re-transmission control module 106 as shown in Figure 6, wherein:
Retransmit number of times that control module 106 judges that sending module 104 resends this HARQ mistake indication and whether reach the maximum retransmission of local preservation, if, do not reinform sending module 104 and send this HARQ mistake indication, otherwise notice sending module 104 resends this HARQ mistake indication.
Embodiment two
Because at a HARQ RTT (Round Trip Time, two-way time) (hereinafter referred RTT) is in the time, HARQ process ID correspondence unique transmission data, therefore, as long as the UE as receiving terminal indicates the eNB that send to as transmitting terminal with the HARQ mistake at a RTT in the time, then eNB can only determine and the unique corresponding data that make a mistake of this HARQ process ID according to a HARQ process ID that makes a mistake.In addition, because the indication of HARQ mistake is transferred to the required time of eNB seldom from UE, in the present embodiment with respect to the time of detecting the HARQ mistake and generating the indication of HARQ mistake, can ignore, therefore, in the present embodiment, as long as UE sends the indication of HARQ mistake in the time at a RTT.
Based on above-mentioned thought, after UE receives the HARQ control signaling of eNB transmission, detect the HARQ mistake according to this HARQ control signaling, when detecting the HARQ mistake, generate HARQ mistake indication, error identification information in the indication of the one HARQ mistake includes only the identification information of the HARQ process that makes a mistake, thereby reduces the required bit number of HARQ mistake indication;
UE sends HARQ mistake indication to eNB when determining to send the indication of HARQ mistake in the time at a RTT after receiving HARQ control signaling.
After eNB receives HARQ mistake indication, in conjunction with this RTT time, determine and the unique corresponding data that make a mistake of this HARQ process ID according to the temporal information that receives HARQ mistake indication, the HARQ process ID that makes a mistake.
If UE will send HARQ mistake indication to eNB after the time exceeding a RTT, what then UE sent to eNB should be the indication of the 2nd HARQ mistake, the indication of the 2nd HARQ mistake is generated according to detected HARQ mistake by receiving terminal, and the error identification information in the indication of the 2nd HARQ mistake should comprise HARQ process ID and the timestamp that makes a mistake.But under the situation of the corresponding HARQ process of a TTI, the error identification information in the indication of the 2nd HARQ mistake can include only the temporal information that makes a mistake.
In first example of present embodiment, UE directly sends the indication of HARQ mistake to eNB by synchronous Random Access Channel, and only sends once.In order to simplify the HARQ mistake indication in first example, in this first example, UE as shown in Figure 7, may further comprise the steps to the flow process of eNB feedback HARQ mistake indication:
Step S401, eNB sends HARQ control signaling to UE;
Step S402, UE receive the HARQ control signaling that eNB sends, and open first timer;
The duration of this first timer is a RTT time.
Step S403, UE detects according to this HARQ control signaling whether the HARQ mistake takes place, if, carry out step S404, otherwise, directly finish;
Step S404, UE generate HARQ mistake indication, and the error identification information in the HARQ mistake indication includes only the identification information of the HARQ process that makes a mistake;
Step S405, UE judge whether this first timer is overtime, if, carry out step S407, otherwise, carry out step S406;
Step S406, UE sends HARQ mistake indication by synchronous Random Access Channel to eNB, finishes;
Step S407, UE generate the indication of the 2nd HARQ mistake, and the error identification information in the indication of the 2nd HARQ mistake comprises the identification information and the timestamp of the HARQ process that makes a mistake;
When specific implementation, UE not necessarily just generates the indication of the 2nd HARQ mistake after this first timer is overtime, UE generates the indication of the 2nd HARQ mistake according to testing result time can specifically be set as required, can make UE like this after first timer is overtime, can directly send the indication of the 2nd HARQ mistake, send and not be used in overtime back regeneration the 2nd HARQ mistake indicating concurrent.
Step S408, UE sends the indication of the 2nd HARQ mistake by synchronous Random Access Channel to eNB.
Because in this first example, UE can directly send the indication of HARQ mistake to eNB, therefore, UE can send to the indication of HARQ mistake eNB before first timer is overtime possibility is very large, in this case, UE is HARQ mistake indication to the eNB transmission, because the error identification information in the HARQ mistake indication includes only the identification information of the HARQ process that makes a mistake, therefore, can simplify the indication of HARQ mistake, reduce the bit number of the HARQ mistake indication that needs transmission.
By first example as can be known, the HARQ control signaling that receives the eNB transmission as UE exceeds a RTT after the time, the HARQ mistake that UE sends to eNB is designated as the indication of the 2nd HARQ mistake, in above-mentioned example, error identification information in the indication of the 2nd HARQ mistake comprises the identification information and the timestamp of the HARQ process that makes a mistake, required bit number is bigger, owing to have only under the situation of a HARQ process at a TTI, a definite timestamp can unique correspondence go out a HARQ process ID, therefore, have only under the situation of a HARQ process at a TTI, the error identification information in the indication of the 2nd HARQ mistake can include only timestamp.
At second example of present embodiment as shown in Figure 8, comprise five HARQ processes, then a RTT is 5 TTI, and a TTI has only a HARQ process.The HARQ mistake has taken place in HARQ process 2 when TTI3 transmits, when TTI 8, HARQ process 2 is transmitted once more, receiving terminal HARQ is after resolving corresponding control signaling, detect this HARQ mistake, and generate HARQ mistake indication, and the error identification information in the HARQ mistake indication includes only the identification information of the HARQ process that makes a mistake, and promptly the HARQ process 2.
In second example, if UE sends the indication of HARQ mistake when TTI12, because UE receives the control signaling at TTI8, the RTT of TTI12 after TTI8 is in the time, and therefore, the HARQ mistake that UE sends when TTI12 is designated as HARQ mistake indication.ENB is after TTI12 receives HARQ mistake indication, the moment of HARQ mistake indication will be received, be TTI12, push away a RTT forward, know that the moment of making a mistake should be between TTI3 to TTI7, know that according to the error identification information in a HARQ mistake indication HARQ process that makes a mistake is a HARQ process 2 again, determine that thus the moment of making a mistake is TTI3, and then and then determine in transmission, to take place the data of HARQ mistake.
In second example, if UE sends the indication of HARQ mistake when TTI14, because TTI14 has surpassed a RTT time after TTI8, therefore, UE should send the indication of the 2nd HARQ mistake to eNB, because in second example, a TTI has only a HARQ process, therefore, the error identification information in the indication of the 2nd HARQ mistake can include only the temporal information that makes a mistake, i.e. TTI3.ENB can determine to take place the data of HARQ mistake according to this temporal information in transmission after receiving the indication of the 2nd HARQ mistake.
Because the required bit number of HARQ process ID can be less than the required bit number of temporal information usually, therefore, in second example, a RTT is in the time after receiving the control signaling, adopt HARQ mistake indication, can reduce the required bit number of HARQ mistake indication.
At UE is when a RTT sends to eNB with HARQ mistake indication in the time, after eNB receives HARQ mistake indication, just can determine to take place the data of HARQ mistake according to the identification information of the HARQ process that makes a mistake of wherein carrying.Its concrete grammar is: after eNB receives HARQ mistake indication, the identification information of the HARQ process that makes a mistake according to this in the time at a time point RTT forward who receives HARQ mistake indication matches the TTI that receives this HARQ control signaling, and this TTI that receives HARQ control signaling pushed away the TTI that a RTT time obtains taking place the HARQ mistake forward, thereby determine to take place the data of HARQ mistake.
For example, in second example, eNB is after TTI12 receives HARQ mistake indication, it is TTI8 that the identification information of the HARQ process that makes a mistake according to this in the time at a TTI12 RTT forward matches the TTI that receives this HARQ control signaling, and TTI8 is pushed away the TTI that a RTT time obtains taking place the HARQ mistake forward is TT3, thereby determines to take place the data of HARQ mistake.
In the processing procedure of reality, UE detects the HARQ mistake and generates the indication of HARQ mistake needs the regular hour, therefore, the time limit that UE sends to eNB with HARQ mistake indication is a RTT not only, when specific implementation, can be according to the processing procedure of receiving device, the minimum treat time P that empirical value or emulation receiving terminal detect the HARQ mistake and generate the receiving terminal of HARQ mistake indication, and be provided with second and be limited to D=RTT+P when setting, be limited to the minimum treat time that a RTT adds this receiving terminal during i.e. this second setting, UE is as long as send the indication of HARQ mistake to eNB in this second time limit, then this HARQ mistake indication can be HARQ mistake indication.
The local duration of preserving this second setting time limit of eNB, and after receiving HARQ mistake indication, determine to take place the data of HARQ mistake according to the HARQ process ID that makes a mistake in the temporal information that receives HARQ mistake indication, the duration in this second setting time limit and the HARQ mistake indication.Concrete definite method is: eNB is after receiving HARQ mistake indication, the time that receives HARQ mistake indication is pushed away this second duration of setting the time limit forward obtain very first time point, and match unique TTI according to the HARQ process ID that makes a mistake in the time, thereby determine to take place the transmission data of HARQ mistake at this some RTT forward very first time.In the specific implementation, as long as this second duration of setting the time limit is not more than the minimum treat time that a RTT adds this receiving terminal.
In the processing procedure of reality, in order to distinguish HARQ mistake indication and the indication of the 2nd HARQ mistake, can in the indication of HARQ mistake, increase the field of a bit, when this field was 0, sign HARQ mistake was designated as HARQ mistake indication; When this field was 1, sign HARQ mistake was designated as the second wrong indication, when transmitting terminal receives the indication of HARQ mistake, can confirm that this HARQ mistake indication is HARQ mistake indication or the indication of the 2nd HARQ mistake by this field;
Perhaps, adopt blind Detecting, transmitting terminal determines that by the difference (as message length) of HARQ mistake indication and the indication of the 2nd HARQ mistake current what receive is that any HARQ mistake is indicated on earth after receiving the indication of HARQ mistake.
The treatment system of the mistake indication in the present embodiment, as shown in Figure 9, comprise transmitting terminal and receiving terminal, receiving terminal comprises first receiver module 201, first detection module 202, the first indication generation module 203 and first sending module 204, transmitting terminal comprises second receiver module 301 and processing module 302, wherein:
The first detection module 202 of receiving terminal, the HARQ control signaling that is used for receiving according to first receiver module 201 detects the HARQ mistake;
The first indication generation module 203 of receiving terminal generates HARQ mistake indication when first detection module 202 detects the HARQ mistake, the error identification information in the HARQ mistake indication includes only the identification information of the HARQ process that makes a mistake;
First sending module 204 of receiving terminal is when determining to send the indication of HARQ mistake in the second setting time limit after first receiver module 201 is received HARQ control signaling, send HARQ mistake indication to transmitting terminal, wherein this second setting time limit is not more than the minimum treat time that a HARQ adds receiving terminal two-way time;
The processing module 302 of transmitting terminal receives the data that the temporal information of HARQ mistake indication, local second identification information of preserving of setting the duration in time limit and the HARQ process that makes a mistake in the HARQ mistake indication are determined generation HARQ mistake according to second receiver module 301.
Because receiving terminal can generate the indication of the 2nd HARQ mistake according to detected HARQ mistake, and determining and to exceed second when sending the indication of HARQ mistake after setting the time limit, send the indication of the 2nd HARQ mistake to transmitting terminal, therefore, receiving terminal in the present embodiment also comprises the second indication generation module 205, wherein:
The second indication generation module 205 generates and exports the indication of the 2nd HARQ mistake according to the testing result of first detection module 202;
Sending module is determined and can be sent the 2nd HARQ mistake indication of the second indication generation module, 205 outputs to transmitting terminal exceeding second when sending the indication of HARQ mistake after setting the time limit.
Receiving device in the present embodiment comprises first receiver module 201, first detection module 202, the first indication generation module 203 and first sending module 204, wherein:
The first indication generation module 203 generates HARQ mistake indication when first detection module 202 detects the HARQ mistake, the error identification information in the HARQ mistake indication includes only the identification information of the HARQ process that makes a mistake;
First sending module 204 is when determining to send the indication of HARQ mistake in the second setting time limit after first receiver module 201 is received HARQ control signaling, send HARQ mistake indication, wherein this second setting time limit is not more than the minimum treat time that a HARQ adds receiving terminal two-way time.
Receiving device in the present embodiment also comprises the second indication generation module 205, wherein:
The second indication generation module 205 generates and exports the indication of the 2nd HARQ mistake according to the testing result of first detection module 202;
Sending module is determined and can be sent the 2nd HARQ mistake indication of the second indication generation module, 205 outputs exceeding this second when sending the indication of HARQ mistake after setting time limit.
Sending ending equipment in the present embodiment comprises second receiver module 301 and processing module 302, wherein:
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (23)
1. the processing method of a wrong indication is characterized in that, may further comprise the steps:
Receiving terminal generates the indication of HARQ mistake detecting when mixing automatic repeat requests HARQ mistake; And
Described receiving terminal determines to send the channel of described HARQ mistake indication, by described channel described HARQ mistake indication is sent to transmitting terminal as independent message, wherein, described channel comprises synchronous Random Access Channel or is the dedicated channel that described HARQ mistake indication is provided with.
2. the method for claim 1 is characterized in that, described receiving terminal is double or more than twice described HARQ mistake indication is sent to described transmitting terminal.
3. the method for claim 1 is characterized in that, described transmitting terminal returns the response of described HARQ mistake indication after receiving described HARQ mistake indication to described receiving terminal;
Described receiving terminal if set the response that does not receive described HARQ mistake indication in the time limit first, then sends to described transmitting terminal with described HARQ mistake indication after described HARQ mistake indication is sent to described transmitting terminal again; Otherwise, no longer send described HARQ mistake indication to described transmitting terminal.
4. method as claimed in claim 3, it is characterized in that, maximum retransmission is set, when described receiving terminal indicates the number of times that sends to described transmitting terminal to reach described maximum retransmission described HARQ mistake again, no longer sends described HARQ mistake indication to described transmitting terminal.
5. method as claimed in claim 3, it is characterized in that, described transmitting terminal returns the response that described HARQ mistake is indicated by the uplink scheduling channel to described receiving terminal, and the response of described HARQ mistake indication is that resource allocation field is that sky or transport block length indication field are 0 uplink scheduling channel massage;
After described receiving terminal receives the uplink scheduling channel massage, whether be whether sky or transport block length indication field are 0 to judge the whether response of HARQ mistake indication of described uplink scheduling channel massage according to the resource allocation field in the described uplink scheduling channel massage.
6. the method for claim 1 is characterized in that, described receiving terminal detects the HARQ mistake according to the HARQ control signaling that receives.
7. receiving device, comprise that the receiver module that is used to receive message, the automatic repeat requests HARQ control of the mixing signaling that is used for receiving according to described receiver module detect the detection module of HARQ mistake and be used for generating the indication generation module that the HARQ mistake is indicated when described detection module detects the HARQ mistake, it is characterized in that, described receiving device also comprises sending module, wherein:
Described sending module is determined the channel of the HARQ mistake indication that the described indication generation module of transmission generates, by described channel described HARQ mistake indication is sent as independent message, wherein, described channel comprises synchronous Random Access Channel or is the dedicated channel that described HARQ mistake indication is provided with.
8. receiving device as claimed in claim 7 is characterized in that described receiving device also comprises the response judge module, wherein:
Described response judge module is after described sending module sends described HARQ mistake indication, judge whether described receiver module sets the response that receives described HARQ mistake indication in the time limit first, if, do not reinform described sending module and send described HARQ mistake indication, otherwise, notify described sending module to resend described HARQ mistake indication.
9. receiving device as claimed in claim 8 is characterized in that described receiving device also comprises the re-transmission control module, wherein:
Described response judge module is notified described re-transmission control module judging described receiver module not when first sets the response that receives described HARQ mistake indication in the time limit;
Described re-transmission control module judges whether the number of times that described sending module resends the indication of described HARQ mistake reaches local maximum retransmission of preserving, if, do not reinform described sending module and send described HARQ mistake indication, otherwise, notify described sending module to resend described HARQ mistake indication.
10. the processing method of a wrong indication is characterized in that, may further comprise the steps:
When receiving terminal detects the HARQ mistake according to the automatic repeat requests HARQ control of the mixing that receives signaling, generate HARQ mistake indication, the error identification information in the described HARQ mistake indication includes only the identification information of the HARQ process that makes a mistake;
Described receiving terminal is when determining to send the indication of HARQ mistake in the second setting time limit after receiving described HARQ control signaling, send described HARQ mistake indication to transmitting terminal, the wherein said second setting time limit is not more than the minimum treat time that a HARQ adds receiving terminal two-way time.
11. method as claimed in claim 10 is characterized in that, processing procedure, empirical value or the emulation of the minimum treat time of described receiving terminal according to described receiving device obtains.
12. method as claimed in claim 11 is characterized in that, the local duration of preserving the described second setting time limit of described transmitting terminal;
After described transmitting terminal receives described HARQ mistake indication, determine to take place the data of HARQ mistake according to the identification information of the HARQ process that makes a mistake in the temporal information that receives described HARQ mistake indication, the duration in the described second setting time limit and the indication of a described HARQ mistake.
13. method as claimed in claim 12, it is characterized in that, after described transmitting terminal receives described HARQ mistake indication, the time that receives described HARQ mistake indication is pushed away described second duration of setting the time limit forward obtain very first time point, and described very first time point HARQ forward in two-way time the identification information according to the described HARQ process that makes a mistake match the Transmission Time Interval TTI that the HARQ mistake takes place, thereby determine to take place the data of HARQ mistake.
14. method as claimed in claim 10 is characterized in that, described second sets the time limit is not more than HARQ two-way time;
After described transmitting terminal receives described HARQ mistake indication, determine to take place the data of HARQ mistake according to the identification information of the described HARQ process that makes a mistake.
15. method as claimed in claim 14, it is characterized in that, after described transmitting terminal receives described HARQ mistake indication, a time point HARQ forward who receives the indication of a described HARQ mistake in two-way time the identification information according to the described HARQ process that makes a mistake match the TTI that receives described HARQ control signaling, and the described TTI that receives described HARQ control signaling pushed away the TTI that a HARQ obtains taking place the HARQ mistake two-way time forward, thereby determine to take place the data of HARQ mistake.
16. method as claimed in claim 10 is characterized in that, receiving terminal generates the indication of the 2nd HARQ mistake according to detected HARQ mistake;
Described receiving terminal is determined and can be sent described the 2nd HARQ mistake indication to transmitting terminal exceeding described second when sending the indication of HARQ mistake after setting the time limit.
17. method as claimed in claim 16 is characterized in that, under the situation of the corresponding HARQ process of a TTI, the error identification information in described the 2nd HARQ mistake indication includes only the temporal information that makes a mistake.
18. method as claimed in claim 16 is characterized in that, the error identification information in described the 2nd HARQ mistake indication comprises the identification information of the HARQ process that makes a mistake and the temporal information that makes a mistake.
19. the treatment system of a wrong indication, comprise transmitting terminal and receiving terminal, described receiving terminal comprises that the automatic repeat requests HARQ control of the mixing that is used to receive first receiver module of message and is used for receiving according to described first receiver module signaling detects the detection module of HARQ mistake, described transmitting terminal comprises second receiver module that is used to receive message, it is characterized in that, described receiving terminal also comprises the first indication generation module and first sending module, described transmitting terminal also comprises processing module, wherein:
The first indication generation module of described receiving terminal generates HARQ mistake indication when described detection module detects the HARQ mistake, the error identification information in the described HARQ mistake indication includes only the identification information of the HARQ process that makes a mistake;
First sending module of described receiving terminal is when determining to send the indication of HARQ mistake in the second setting time limit after described first receiver module is received described HARQ control signaling, send described HARQ mistake indication to described transmitting terminal, the wherein said second setting time limit is not more than the minimum treat time that a HARQ adds receiving terminal two-way time;
Second receiver module of described transmitting terminal receives and exports described HARQ mistake indication;
The processing module of described transmitting terminal receives the data that the temporal information of described HARQ mistake indication, local described second identification information of preserving of setting the duration in time limit and the HARQ process that makes a mistake in the indication of a described HARQ mistake are determined generation HARQ mistake according to described second receiver module.
20. treatment system as claimed in claim 19 is characterized in that, described receiving terminal also comprises the second indication generation module, wherein:
The described second indication generation module generates and exports the indication of the 2nd HARQ mistake according to the testing result of described detection module;
Described sending module is determined and can be sent the 2nd HARQ mistake indication of the described second indication generation module output to transmitting terminal exceeding described second when sending the indication of HARQ mistake after setting the time limit.
21. receiving device, comprise that the automatic repeat requests HARQ control of the mixing that is used to receive first receiver module of message and is used for receiving according to described first receiver module signaling detects the detection module of HARQ mistake, it is characterized in that, described receiving terminal also comprises the first indication generation module and first sending module, wherein:
The described first indication generation module generates HARQ mistake indication when described detection module detects the HARQ mistake, the error identification information in the described HARQ mistake indication includes only the identification information of the HARQ process that makes a mistake;
Described first sending module is when determining to send the indication of HARQ mistake in the second setting time limit after described first receiver module is received described HARQ control signaling, send described HARQ mistake indication, the wherein said second setting time limit is not more than the minimum treat time that a HARQ adds receiving terminal two-way time.
22. receiving device as claimed in claim 21 is characterized in that, described receiving device also comprises the second indication generation module, wherein:
The described second indication generation module generates and exports the indication of the 2nd HARQ mistake according to the testing result of described detection module;
Described sending module is determined and can be sent the 2nd HARQ mistake indication of the described second indication generation module output exceeding described second when sending the indication of HARQ mistake after setting the time limit.
23. a sending ending equipment comprises second receiver module that is used to receive message, it is characterized in that described transmitting terminal also comprises processing module, wherein:
The HARQ mistake indication that described second receiver module receives and output receives;
Described processing module receives the data that the temporal information of described HARQ mistake indication, local described second identification information of preserving of setting the duration in time limit and the HARQ process that makes a mistake in the indication of a described HARQ mistake are determined generation HARQ mistake according to described second receiver module.
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| WO2018192383A1 (en) * | 2017-04-18 | 2018-10-25 | 华为技术有限公司 | Receiving method and transmitting method of feedback information, apparatus, and system |
| CN108737036B (en) * | 2017-04-18 | 2020-11-06 | 华为技术有限公司 | Feedback information receiving method, sending method, device and system |
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