CN108337072A - A kind of uplink data scheduling method and relevant device - Google Patents

A kind of uplink data scheduling method and relevant device Download PDF

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Publication number
CN108337072A
CN108337072A CN201711441069.8A CN201711441069A CN108337072A CN 108337072 A CN108337072 A CN 108337072A CN 201711441069 A CN201711441069 A CN 201711441069A CN 108337072 A CN108337072 A CN 108337072A
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CN
China
Prior art keywords
pdu
message
equipment
decoding result
true
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CN201711441069.8A
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Chinese (zh)
Inventor
温冀妮
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上海华为技术有限公司
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Priority to CN201711441069.8A priority Critical patent/CN108337072A/en
Publication of CN108337072A publication Critical patent/CN108337072A/en

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    • 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
    • H04L1/1867Arrangements specific to the transmitter end
    • H04L1/1874Buffer management
    • 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
    • H04L1/18Automatic repetition systems, e.g. van Duuren system ; ARQ protocols
    • H04L1/1812Hybrid protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/12Dynamic Wireless traffic scheduling ; Dynamically scheduled allocation on shared channel
    • H04W72/1263Schedule usage, i.e. actual mapping of traffic onto schedule; Multiplexing of flows into one or several streams; Mapping aspects; Scheduled allocation
    • H04W72/1268Schedule usage, i.e. actual mapping of traffic onto schedule; Multiplexing of flows into one or several streams; Mapping aspects; Scheduled allocation of uplink data flows
    • 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
    • H04L1/1867Arrangements specific to the transmitter end
    • H04L1/1887Scheduling and prioritising arrangements

Abstract

The embodiment of the present application discloses a kind of uplink data scheduling method and relevant device, for solving the problem of that transmission time is long to influence the perception rate of user in the prior art.The embodiment of the present application method includes:First equipment sends first message at the T moment to user equipment, and wherein first message includes sending resource scheduling information used in the first PDU;If the first equipment is not when determining the decoding result of the first PDU at the T+m moment, first equipment sends second message at the T+m moment to user equipment, second message carries the acquiescence decoding for the first PDU as a result, acquiescence decoding result is ACK, and m is the cycle period of HARQ processes;First equipment determines the true decoding result of the first PDU according to the first PDU received;First equipment sends third message at the T+A*m moment to user equipment, and third message carries true decoding result instruction, so that user equipment determines whether to empty the data of the first PDU according to true decoding result instruction, A is the integer more than 1.

Description

A kind of uplink data scheduling method and relevant device

Technical field

This application involves the communications field more particularly to a kind of uplink data scheduling methods and relevant device.

Background technology

With the continuous renewal of technology, wireless base station is just towards more rich form, better performance, lower TCO, higher Deployment density, wider band, more intelligent, more preferable user experience, more flexible deployment etc. development.The physical aspect of base station constantly to Both ends evolution subdivision;And multi-standard, polymorphic mixed networking trend are more and more obvious;Various forward pass, rear biography interface are also more next It is more diversified.The framework development of communication system gradually forms such a trend:By Remote Radio Unit (radio remote Unit, RRU) it is removed with baseband processing unit (building baseband unit, BBU), and pass through remote transmission means The two is connected, then radio frequency unit is placed on to the place of various needs.On the one hand this framework improves the flexible of networking Property, the maintenance cost of network is on the other hand reduced, therefore increasingly obtain the approval of user, application scenario is also more and more.

However, in the prior art, there are the scene between BBU and RRU not being optical fiber transmission, i.e. CO is non-ideal with website Transmission, the then propagation delay time generated can make the same mixed automatic retransfer (hybrid automatic repeat Request, HARQ) process carry out next time dispatch when can not obtain the demodulation result once dispatched, at this point, cannot root It is scheduled processing according to confirmation response (acknowledgement, ACK)/negative response (negative ack) result.Due to There are propagation delay time between BBU and RRU, then BBU can not obtain the demodulation result of T+0ms, at this time when T+8ms is scheduled Processing cannot be scheduled according to ACK/NACK results.BBU assumes that demodulation result is ACK, and then carries out new biography data transmission, so And if actual demodulation result is NACK, it needs through radio link layer control protocol (radio link control, RLC) Retransmission mechanism is retransmitted, if therefore while just passing cyclic redundancy check (CRC) mistake to wait for RLC retransmission mechanism to start, when transmission Between enhance apparent, affect the perception rate of user.

Invention content

The embodiment of the present application provides a kind of uplink data scheduling method, long for solving transmission time in the prior art, The problem of perception rate to influence user.

The first aspect of the embodiment of the present application provides a kind of uplink data scheduling method, including:First equipment is at the T moment First message is sent to user equipment, wherein the first message includes sending resource scheduling information used in the first PDU;If For first equipment when not determining the decoding result of the first PDU at the T+m moment, first equipment is at the T+m moment Second message is sent to the user equipment, the second message, which is carried, to be decoded for the acquiescence of the first PDU as a result, institute It is ACK to state acquiescence decoding result, and the m is the cycle period of HARQ processes;First equipment is according to the first PDU received Determine the true decoding result of the first PDU;First equipment sends institute at the T+A*m moment to the user equipment Third message is stated, the third message carries true decoding result instruction, so that the user equipment is according to described true It decodes result instruction to determine whether to empty the data of the first PDU, the A is the integer more than 1.In the embodiment of the present application, In the case where it is ACK or NACK that can not accurately know the decoding result of the first PDU of T moment, it is considered ACK always to carry out New biography is dispatched next time, by carrying true decoding result instruction in third message come so that user equipment is clear according to the instruction The data of the first PDU of sky avoid just passing mistake being that RLC retransmission mechanism to be waited for starts, solve transmission time in the prior art It is long, the problem of perception rate to influence user.

In a kind of possible design, in the first realization method of the embodiment of the present application first aspect, the first equipment Before the T moment sends first message to user equipment, the method further includes:First equipment receives the user equipment The scheduling request of transmission, the scheduling request are the first PDU distributing radio resources for asking first equipment.This reality In existing mode, illustrates the triggering mode of the first equipment scheduling resource, increase the realization method of the embodiment of the present application.

In a kind of possible design, in second of realization method of the embodiment of the present application first aspect, described first After equipment determines the true decoding result of the first PDU according to the first PDU received, the method further includes:When described When true decoding result indicates decoding failure, the data volume of the first PDU1 described in first equipment scheduling compensates back buffering area. In this realization method, when illustrating decoding failure, data volume is also compensated back buffering area by the first equipment so that the embodiment of the present application Logicality it is stronger.

In a kind of possible design, in the third realization method of the embodiment of the present application first aspect, when described true When real decoding result indicates decoding failure, the third message further includes retransmitting scheduling of resource letter used in the first PDU Breath.It further include the resource scheduling information retransmitted in this realization method, when illustrating decoding failure, in third message so that this Shen Please embodiment it is more perfect.

The second aspect of the embodiment of the present application provides a kind of uplink data scheduling method, including:User equipment is to first Equipment sends the first PDU;The user equipment receives the first message that first equipment is sent, and the first message carries Acquiescence decoding for the first PDU is as a result, acquiescence decoding result is ACK;The user equipment confirms described first True decoding result of the equipment to the first PDU;When the true scheduling result indicates that decoding is correct, then the user equipment Empty the data of the first PDU.

In a kind of possible design, in the first realization method of the embodiment of the present application second aspect, the user Equipment confirms that first equipment includes to the true decoding result of the first PDU:The user equipment receives described first The second message that equipment is sent, the first message carry true decoding result instruction;The user equipment is according to described true Real decoding result instruction determines the true decoding result.

In a kind of possible design, in second of realization method of the embodiment of the present application second aspect, when described true Real scheduling result indicates decoding failure, then the second message further includes retransmitting scheduling of resource letter used in the first PDU Breath.

In a kind of possible design, in the third realization method of the embodiment of the present application second aspect, the user Equipment confirms that first equipment includes to the true decoding result of the first PDU:The user equipment receives described After the preset time period of one message, confirm that the acquiescence decoding result is the true decoding result.

The third aspect of the embodiment of the present application provides a kind of controlling equipment, including:

Transmit-Receive Unit, for sending first message to user equipment at the T moment, the first message includes sending first Resource scheduling information used in PDU;If first equipment when not determining the decoding result of the first PDU at the T+m moment, The Transmit-Receive Unit is additionally operable to send second message to the user equipment at the T+m moment, and the second message carries As a result, acquiescence decoding result is ACK, the m is the circulating cycle of HARQ processes for acquiescence decoding for the first PDU Phase;Determination unit, the true decoding result for determining the first PDU according to the first PDU received;The Transmit-Receive Unit It is additionally operable to send the third message to the user equipment at the T+A*m moment, the third message, which carries, really translates Code result instruction, so that the user equipment determines whether to empty the first PDU according to the true decoding result instruction Data, the A is integer more than 1.

In a kind of possible design, in the first realization method of the embodiment of the present application third aspect, the scheduling Equipment further includes:The Transmit-Receive Unit is additionally operable to receive the scheduling request that the user equipment is sent, and the scheduling request is used for It is the first PDU distributing radio resources to ask first equipment.

In a kind of possible design, in second of realization method of the embodiment of the present application third aspect, the scheduling Equipment further includes:Scheduling unit, when the true decoding result indicates decoding failure, the number for dispatching the first PDU1 Buffering area is compensated back according to amount.

In a kind of possible design, in the third realization method of the embodiment of the present application third aspect, when described true When real decoding result indicates decoding failure, the third message further includes retransmitting scheduling of resource letter used in the first PDU Breath.

The fourth aspect of the embodiment of the present application provides a kind of user equipment, including:Transmit-Receive Unit is used for the first equipment Send the first PDU;The Transmit-Receive Unit is additionally operable to receive the first message that first equipment is sent, and the first message is taken Band is useful for the acquiescence decoding of the first PDU as a result, acquiescence decoding result is ACK;

Confirmation unit, for confirming true decoding result of first equipment to the first PDU;

Unit is emptied, when the true scheduling result indicates that decoding correctly, is then used to empty the data of the first PDU.

In a kind of possible design, in the first realization method of the embodiment of the present application fourth aspect, the confirmation Unit includes:Receiving module, the second message sent for receiving first equipment, the first message, which carries, really translates Code result instruction;First determining module, for determining the true decoding result according to the true decoding result instruction.

In a kind of possible design, in second of realization method of the embodiment of the present application fourth aspect, when described true Real scheduling result indicates decoding failure, then the second message further includes retransmitting scheduling of resource letter used in the first PDU Breath.

In a kind of possible design, in the third realization method of the embodiment of the present application fourth aspect, the confirmation Unit includes:Second determining module, it is described for confirming after the Transmit-Receive Unit receives the preset time period of the first message Acquiescence decoding result is the true decoding result.

The 5th aspect of the application provides a kind of computer readable storage medium, in the computer readable storage medium It is stored with instruction, when run on a computer so that computer executes the method described in above-mentioned various aspects.

The 6th aspect of the application provides a kind of computer program product including instruction, when it runs on computers When so that computer executes the method described in above-mentioned various aspects.

As can be seen from the above technical solutions, the embodiment of the present application has the following advantages:It can not accurately know the T moment The decoding result of one PDU be ACK or NACK in the case of, be considered ACK always carry out next time new biography dispatch, by True decoding result instruction is carried in third message to make user equipment empty according to the instruction data of the first PDU, is avoided It is that RLC retransmission mechanism to be waited for starts just to pass mistake, solves in the prior art that transmission time is long, to influence the perception of user The problem of rate.

Description of the drawings

Fig. 1 is a kind of flow chart of possible uplink data scheduling method provided by the embodiments of the present application;

Fig. 2 is a kind of possible HARQ processes schematic diagram provided by the embodiments of the present application;

Fig. 3 is a kind of possible scheme schematic diagram provided by the embodiments of the present application;

Fig. 4 is a kind of structural schematic diagram of possible controlling equipment provided by the embodiments of the present application;

Fig. 5 is a kind of structural schematic diagram of possible user equipment provided by the embodiments of the present application;

Fig. 6 is the structural schematic diagram of another possible controlling equipment provided by the embodiments of the present application;

Fig. 7 is the structural schematic diagram of another possible user equipment provided by the embodiments of the present application.

Specific implementation mode

The embodiment of the present application provides a kind of uplink data scheduling method and relevant device, for solving in the prior art The problem of transmission time is long, perception rate to influence user.

Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on Embodiment in the application, the every other implementation that those skilled in the art are obtained without making creative work Example, shall fall in the protection scope of this application.

One hybrid automatic repeat request (hybrid automatic repeat request, HARQ) process refers to Base station scheduling carries out a data transmission, then receives ACK/NACK feedback informations to base station.In a HARQ process, once After transmission is sent out, needing the length waited for be round trip delay time (round-trip time, RTT) could determine that transmission next time is to pass Defeated new data, or carry out the re-transmission of legacy data.During this period of time, base station or terminal cannot stop transmission and in vain etc. It waits for, it is necessary to other parallel HARQ processes are initiated, to make full use of time-domain resource.Wherein, the number of processes of HARQ is with RTT, Be exactly propagation delay time and the/base station user equipment (user equipment, UE) processing time it is relevant, RTT is bigger, needs to prop up For the parallel HARQ processes quantity held to fill up RTT, the quantity of HARQ processes is approximately equal to RTT/TTI.For example, for FDD system and Speech, each subframe can be carried out the transmission of uplink and downlink data, opened by frequency separation between uplink and downlink data.It examines Consider the processing delay of physical layer, if UE (base station) has sent a data frame by some HARQ process in n-th of subframe, Base station (UE) could send the confirmation message of the HARQ processes in the n-th+4 subframes, then UE (base station) passes through the HARQ processes It could continue to send next data frame in the n-th+8 subframes, i.e., the HARQ RTT times are 8ms, therefore are not difficult to obtain HARQ processes Number is 8.

The embodiment of the present application can be adapted for long term evolution (long term evolution, LTE) and the communication of future 5G System, can application scenarios be included in group-network construction of the wireless side there are time delay, as between BBU and RRU, between BBU and BBU etc. not It is optical fiber connection again, i.e., causes the same HARQ processes that can not obtain upper one when carrying out scheduling next time to time delay before existing The demodulation result of secondary scheduling cannot be scheduled processing according to ACK/NACK results at this time.And in the prior art, it is assumed that last The demodulation result of scheduling is ACK, therefore the transmission of new data is carried out when dispatching next time, if the true demodulation knot of last scheduling When fruit is NACK, since the sides UE have emptied the data information of last scheduling, therefore need to wait for RLC ARQ mechanism start come into Row retransmits, and transmission time is remarkably reinforced, and affects the perception rate of user.

In view of this, this application provides a kind of uplink data scheduling method, for solving demodulation result in the prior art User caused by reporting not in time perceives the problem of rate loss.

It is distributed base station, the distribution by base station sets involved in the application for ease of understanding in the application Base station includes BBU and RRU, and there are propagation delay times between BBU and RRU.Based on this, referring to Fig. 1, being carried for the embodiment of the present application A kind of flow chart of uplink data scheduling method, this method has been supplied to specifically include:

101, UE sends the first scheduling request by RRU to BBU;

When UE needs to send upstream data, for ease of description, in the application, which can be known as to the first agreement When data cell (protocol data unit, PDU), by RRU to BBU send the first scheduling request, i.e. UE by this first Scheduling request is sent to RRU, then has RRU to be forwarded to BBU, and wherein first scheduling request is for asking BBU for the first PDU points With bearing resource, in practical application, which can be to increase request (addition request) message, also may be used To be other existing message or new information, specific the application does not limit.

In addition, PDU is used to refer to the data unit transmitted between peer layer time, for example, the PDU of physical layer is data bit (bit), the PDU of data link layer is data frame (frame), and the PDU of network layer is data packet (packet), the PDU of transport layer It is data segment (segment), other higher level PDU are message (message).

102, BBU sends first message by RRU to UE;

After BBU receives the first scheduling request, in response to first scheduling request, it is forwarded to UE via RRU and sends first Message, which includes that UE sends resource scheduling information used in the first PDU, used in the first PDU of the transmission Resource scheduling information is used to indicate that the position of radio resource, the resource scheduling information can carry promising UE and transmit for the first time to UE Resource block sequence number (resource block index, the RB index) sequence number of one PDU distribution or the positions RB, and modulation Coding mode (Modulation and Coding Scheme, MCS).Wherein the selection of MCS can be by BBU by measuring UE hairs Serve row transmission data acquisition, such as according to the uplink reference signals carried in data do measurement or other signals, specifically this Place does not limit.

Optionally, the scheduling of resource period that BBU configurations are may also include in the resource scheduling information, in practical application, the money Source dispatching cycle is optional parameters, if the scheduling of resource period is not informed that BBU is every time before scheduling resource to UE by the BBU At the time of all needing to notify BBU scheduling resources to UE.

Optionally, which can be UL grant corresponding with UE, can also be other existing message or new Message, specific the application do not limit.Wherein, UL grant can carry can by the predetermined information of UE unique identifications and It is assigned to the private resource that the UE sends upstream data, and modulation and coding strategy (modulation and coding Scheme, MCS) etc. scheduling informations so that UE can identify the UL grant of oneself according to predetermined information, and in the UL Upstream data is sent on the private resource specified in grant.In addition, the UL grant can come from the PDCCH of dynamic dispatching, or From RAR, or by being semi-statically configured.

It should be noted that due between BBU and RRU there are propagation delay time, in the application, if BBU uses the at the T moment One HARQ processes carry out the new biography scheduling of PDU1, and first message is sent to RRU, RRU in T+s receptions to the first message, And then it is transmitted to UE, in the application, it is assumed that propagation delay time is not present between RRU and UE, therefore UE is also in T+s receptions to first Message, wherein s are the propagation delay time between BBU and RRU, and in practical application, the value of s can be 2ms, 3ms or 4ms Deng not limiting specifically herein.

103, UE sends the first PDU by RRU to BBU;

UE obtains the money for being used for transmission the first PDU for including in the first message after T+s receptions to first message Source scheduling information, since the resource scheduling information includes the positions MCS and RB index or RB, therefore UE believes from the scheduling of resource Content in breath determines the time-frequency location and MCS of the radio resource of BBU distribution, therefore UE is existed based on the resource scheduling information At running time-frequency resource specified BBU, the first PDU is sent to BBU according to the MCS of BBU distribution, it should be noted that the sides UE there is also Processing delay p, i.e. UE send the first PDU to RRU after T+s receptions to first message, at the T+s+p moment so that RRU exists After T+s+p receptions to the first PDU, the first PDU is forwarded to BBU, it is to be understood that BBU receives the first PDU At the time of be T+2s+p.In addition, being provided in agreement, the processing delay p of the sides UE can be 4ms.

104, BBU sends second message by RRU to UE;

As shown in Fig. 2, being a kind of possible HARQ processes schematic diagram provided by the present application, wherein number 1-8 expressions respectively follow 8 parallel HARQ processes in the ring period, each parallel HARQ processes are mutual indepedent, and letter A confirms response for indicating For indicating negative response NACK, base station is retransmitted or is transmitted to UE transmission datas, and according to the feedback of UE by ACK, alphabetical N New data, as shown, in first cycle period, base station by process 3 to UE transmission datas, and in second circulating cycle Receive the ACK of UE feedbacks before phase, therefore base station sends new data by process 3 in second cycle period to UE, and the The NACK of UE feedbacks is received before three cycle periods, therefore base station is sent newly by process 3 to UE in third cycle period The re-transmission data of data.

Therefore, because there are propagation delay times between BBU and RRU, and there are processing delay for the sides UE, therefore logical at the T moment in BBU After crossing the first process transmission first message, in next cycle period, BBU possibly can not obtain the decoding at T moment as a result, therefore not Processing can be scheduled.Therefore, BBU sends second message by RRU at the T+m moment to UE, and wherein m is the cycle of HARQ processes In the period, in practical application, the value of m can be 8ms either 10ms or other numerical value, not limit herein specifically.And this Two message carry for the first PDU acquiescence decoding as a result, and acquiescence decoding result be ACK, and second message include send Resource scheduling information used in 2nd PDU, it should be noted that before sending the second message, BBU is sent out by receiving UE The second scheduling request sent to distribute bearing resource for the 2nd PDU, and will configure and provided used in the 2nd PDU for sending Source scheduling information is carried in second message, and the process is similar with the step 101 to 102 in the application, specifically no longer superfluous herein It states.

Optionally, which may be new biography grant corresponding with UE, can also be other existing message or New information, specific the application do not limit.

It is understood that BBU is forwarded to UE at the T+m moment via RRU sends second message, due between BBU and RRU Propagation delay time s, therefore RRU receives the second message at the T+m+s moment, and be forwarded to UE, and UE the T+m+s moment receive this second After message, although including the acquiescence decoding to the first PDU as a result, UE empties first not according to acquiescence decoding result The data of PDU.

105, BBU couples of the first PDU is modulated decoding and handles to obtain true decoding result;

After UE sends the first PDU by RRU to BBU, BBU receives the first PDU at the T+2s+p moment, to the first PDU Decoding processing is modulated to obtain really decoding result, it is to be understood that in order to improve data transmission efficiency, reduce error code Rate, in practical application, the first PDU can successively be encoded, be modulated, mapped framing, is fast by the UE in transmitting terminal, that is, the application Fast inverse Fourier transform and plus the operations such as cyclic prefix (cyclic prefix, CP), be then to receiving terminal by transmission BBU in the application, it is therefore, corresponding, after BBU receives the first PDU of UE transmissions, to the first PDU that receives successively into Row goes CP, Fast Fourier Transform (FFT), data pick-up, channel estimation, equilibrium, demodulation decoding processing.In the application, after coding The first PDU be modulated decoding processing existing technological means may be used, specific the application repeats no more.

It should be noted that in practical application, it can be 2.5ms~3.75ms that the process of modulation decoding processing, which takes, Or other durations, it does not limit herein specifically.

106, BBU sends third message by RRU to UE;

BBU is obtained after really decoding result, can increase true decoding knot newly in third message according to the true decoding result Fruit instruction (operation needs agreement support or privatization agreement), such as this can be carried by the specific bit in third message The information of true decoding result instruction e.g. when the specific bit is 0, indicates that decoding is correct, that is, is used for the feedback message of the first PDU For ACK;When the specific bit is 1, decoding failure is indicated, that is, the feedback message for being used for the first PDU is NACK.

In addition, when if decoding result indicates decoding failure, BBU also needs this time scheduling data volume compensating back buffering area, and Carry out the retransfer scheduling of PDU1.It is to be understood that the sides BBU safeguard that a buffering area, the buffering area may include dispatching UE request hairs Send data required scheduling data volume, BBU is determined the length or size of the complete required resource block of data dispatch, can be with Understand, also needs to be scheduled again if scheduling error.For example, as UE asks to send 100 data, BBU tune After having spent wherein 10 data, buffering area there remains 90 scheduling data volumes, if 10 scheduled data decodings are correct, after What continuous scheduling UE requests were sent is left 90 data;If 10 scheduled data decoding errors, that is, indicate to send failure, then BBU also needs to dispatch 10 data, thus by the scheduling data volume for dispatching used in 10 data compensate back buffering area with It is dispatched next time.Further include retransmitting scheduling of resource letter used in the first PDU therefore when decoding failure, in third message Breath can also be other existing message or new information in addition, the third message may be re-transmission grant corresponding with UE, It does not limit herein specifically.

In addition, if really decoding result indicates that decoding is correct, BBU carries out conventional operation, such as in next HARQ Cycle period pass through the first HARQ processes carry out new data scheduling.

It should be noted that if the true decoding result that BBU is obtained is that decoding is correct, BBU increases newly true in third message Real decoding result be designated as can selection operation, i.e. UE is after the preset time period for receiving third message, if not receiving information yet to refer to Show that BBU decodes the first PDU failures, then UE confirms the above-mentioned as true decoding of acquiescence decoding result as a result, i.e. based on the first PDU's It is fed back to ACK.

To sum up, third message is sent to UE by BBU by the first HARQ processes at the T+A*m moment via RRU, so that UE Determine whether to empty the data of the first PDU according to the true decoding result instruction in the third message, wherein A is whole more than 1 Number.

107, UE is according to the first PDU of third retransmitting message;

Third message is sent to UE by BBU at the T+A*m moment by RRU, is deposited based on propagation delay time s between BBU and RRU In, UE in T+A*m+s receptions to the third message, if the true decoding result instruction entrained by third message indicates decoding Fail, then resource scheduling information retransmits the first PDU retained used in the first PDU of re-transmission that UE includes according to third message Data.

108, UE empties the data of the first PDU according to third message.

Third message is sent to UE by BBU at the T+A*m moment by RRU, is deposited based on propagation delay time s between BBU and RRU In, UE in T+A*m+s receptions to the third message, if the true decoding result instruction entrained by third message indicates decoding Correctly, then UE empties the data of the first PDU.

Optionally, if the true decoding result that BBU is obtained indicates that decoding is correct, BBU can not be new in third message Increase true decoding result instruction, therefore UE is after the preset time period for receiving third message, if not receiving information yet to indicate that BBU is translated Code the first PDU failures, then UE confirms the ACK that is fed back to based on the first PDU, and then empties the data of the first PDU, practical application In, when the cycle period of HARQ processes is m, which can be 5m or 6m etc., not limit herein specifically.

In the embodiment of the present application, using the instruction of newly-increased true decoding result, UE is being carried out after receiving true decoding instruction Historical data empties, and ensures, when actual demodulation result is NACK, still to obtain HARQ gains, solve and carry out in RLC Re-transmission can not obtain the problem of HARQ merges gain, promote demodulation performance;In addition, in the application, just passing crc error still can be Medium access control (media access control, MAC) layer retransmits, without waiting for wireless chain control layer agreement (radio Link control, RLC) retransmission mechanism start, transmission time will not gain, so as to avoid user perceive rate loss.

For ease of understanding, the main contents of this programme are illustrated with reference to specific example, referring to Fig. 3, being this Shen Please embodiment provide a kind of possible scheme schematic diagram, wherein assuming that propagation delay time s=4ms, HARQ between BBU and RRU Cycle period m=8ms, therefore, the program specifically includes following steps:

Step 1, BBU carry out the new biography scheduling of PDU1 at the T+0ms moment, send the resource scheduling information of PDU1 to RRU (T+ 4), RRU sends Grant to UE (T+4ms), which carries the resource scheduling information of PDU1.UE is according to the resource tune of PDU1 It spends information and sends PDU1 to RRU (T+8ms), RRU is back to BBU (T+12ms), and BBU receives the PDU1 of UE transmissions simultaneously in T+12ms Carry out demodulation coding;

Step 2, BBU are demodulated into ACK in T+8ms hypothesis PDU1 and carry out the new biography data transmission of PDU2.RRU is in T+12ms It is handled according to ACK information, sends the decoding result ACK+ new biographies Grant to UE of PDU1, new biography Grant includes PDU2's Resource scheduling information, and the Grant carries the decoding result ACK for sending PDU1.UE does not empty the data of PDU1 at this time;

Step 3, BBU are handled in T+16ms according to the true decoding result of acquisition, if decoding is correct, are carried out normal Rule are handled;This time scheduling data volume is compensated into back buffering area if decoding error, and carries out the retransfer scheduling of PDU1, is sent The true decoding result NACK+ of PDU1 retransmits Grant to UE, and re-transmission Grant includes the resource scheduling information for retransmitting PDU1.And BBU is also retransmitting the instruction (needing agreement support or privatization agreement) for increasing true decoding result in Grant newly, and it is true that UE receives this The null clear operation for carrying out PDU1 data after real decoding result instruction again does not empty PDU1's if really decoding result is NACK Data;If really decoding result is ACK, the data of PDU1 are emptied.

Uplink data scheduling method in the embodiment of the present application is described above, below in the embodiment of the present application Controlling equipment is described, referring to Fig. 4, one embodiment of controlling equipment includes in the embodiment of the present application:The scheduling is set Standby is the first equipment,

Transmit-Receive Unit 401, for sending first message to user equipment at the T moment, the first message includes sending the Resource scheduling information used in one PDU;

If first equipment is not when determining the decoding result of the first PDU at the T+m moment, the Transmit-Receive Unit 401 It is additionally operable to send second message to the user equipment at the T+m moment, the second message is carried for described first The acquiescence of PDU decodes as a result, acquiescence decoding result is ACK, and the m is the cycle period of HARQ processes;

Determination unit 402, the true decoding result for determining the first PDU according to the first PDU received;

The Transmit-Receive Unit 401 is additionally operable to send the third message, institute to the user equipment at the T+A*m moment It states third message and carries true decoding result instruction, so that the user equipment indicates really according to the true decoding result The fixed data for whether emptying the first PDU, the A are the integer more than 1.

In a kind of feasible embodiment, the Transmit-Receive Unit 401 is additionally operable to receive the tune that the user equipment is sent Degree request, the scheduling request are the first PDU distributing radio resources for asking first equipment.

In a kind of feasible embodiment, the controlling equipment further includes:

Scheduling unit 403, when the true decoding result indicates decoding failure, the number for dispatching the first PDU1 Buffering area is compensated back according to amount.

A kind of user equipment is additionally provided in the embodiment of the present application, referring to Fig. 5, user equipment in the embodiment of the present application One embodiment includes:

Transmit-Receive Unit 501, for sending the first PDU to the first equipment;

The Transmit-Receive Unit 501 is additionally operable to receive the first message that first equipment is sent, and the first message carries The acquiescence decoding of the first PDU is useful for as a result, acquiescence decoding result is ACK;

Confirmation unit 502, for confirming true decoding result of first equipment to the first PDU;

Unit 503 is emptied, when the true scheduling result indicates that decoding correctly, is then used to empty the number of the first PDU According to.

In a kind of feasible embodiment, the confirmation unit 502 specifically includes:

Receiving module 5021, the second message sent for receiving first equipment, the first message carry very Real decoding result instruction;

First determining module 5022, for determining the true decoding result according to the true decoding result instruction.

In a kind of feasible embodiment, the confirmation unit 502 specifically includes:

Second determining module 5023, after the Transmit-Receive Unit receives the preset time period of the first message, for confirming The acquiescence decoding result is the true decoding result.

Above figure 4 and Fig. 5 are from the angle of modular functionality entity respectively to the controlling equipment and use in the embodiment of the present application Family equipment is described in detail, below from the angle of hardware handles in the embodiment of the present application controlling equipment and user equipment into Row detailed description.Referring to Fig. 6, another embodiment of controlling equipment includes in the embodiment of the present application:

Fig. 6 is a kind of structural schematic diagram of controlling equipment provided by the embodiments of the present application, which can be because of configuration Or performance is different and generate bigger difference, may include one or more processors (central processing Units, CPU) 601 (for example, one or more processors) and memory 609, one or more storages apply journey The storage medium 608 (such as one or more mass memory units) of sequence 607 or data 606.Wherein, 609 He of memory Storage medium 608 can be of short duration storage or persistent storage.The program for being stored in storage medium 608 may include one or one With upper module (diagram does not mark), each module may include to the series of instructions operation in controlling equipment.Further, Processor 601 could be provided as communicating with storage medium 608, be executed on controlling equipment 600 a series of in storage medium 608 Instruction operation.

Controlling equipment 600 can also include one or more power supplys 602, one or more wired or wireless nets Network interface 603, one or more input/output interfaces 604, and/or, one or more operating systems 605, such as Windows Server, Mac OS X, Unix, Linux, FreeBSD etc..It will be understood by those skilled in the art that showing in Fig. 6 The controlling equipment structure gone out does not constitute the restriction to controlling equipment, may include components more more or fewer than diagram, or Combine certain components or different components arrangement.

Each component parts of controlling equipment is specifically introduced with reference to Fig. 6:

Memory 609 can be used for storing software program and module, and processor 601 is stored in memory 609 by operation Software program and module, to execute various function application and the data processing of controlling equipment.Memory 609 can be main Including storing program area and storage data field, wherein storing program area can storage program area, answering needed at least one function With program (such as broadcast capability) etc.;Storage data field can be stored uses created data (for example to turn according to payment platform Account path list etc.) etc..In addition, memory 609 may include high-speed random access memory, can also include non-volatile deposit Reservoir, for example, at least a disk memory, flush memory device or other volatile solid-state parts.Implement in the application The program and the data that receive of retransfer scheduling are stored in memory 609 in example, and when it is desired to be used, processor 601 is from depositing It is called in reservoir 609.

Processor 601 is the control centre of controlling equipment, can carry out retransfer scheduling according to the retransfer scheduling method of setting. Processor 601 is stored in using the various pieces of various interfaces and the entire controlling equipment of connection by running or executing Software program in reservoir 609 and/or module, and the data being stored in memory 609 are called, execute each of controlling equipment Kind function and processing data, to solve the problem of that transmission time is long to influence the perception rate of user in the prior art.

Fig. 7 is a kind of structural schematic diagram of user equipment provided by the embodiments of the present application, which can be because of configuration Or performance is different and generate bigger difference, may include one or more processors (central processing Units, CPU) 701 (for example, one or more processors) and memory 709, one or more storages apply journey The storage medium 708 (such as one or more mass memory units) of sequence 707 or data 706.Wherein, 709 He of memory Storage medium 708 can be of short duration storage or persistent storage.The program for being stored in storage medium 708 may include one or one With upper module (diagram does not mark), each module may include to the series of instructions operation in user equipment.Further, Processor 701 could be provided as communicating with storage medium 708, be executed on user equipment 700 a series of in storage medium 708 Instruction operation.

User equipment 700 can also include one or more power supplys 702, one or more wired or wireless nets Network interface 703, one or more input/output interfaces 704, and/or, one or more operating systems 705, such as Windows Server, Mac OS X, Unix, Linux, FreeBSD etc..It will be understood by those skilled in the art that showing in Fig. 7 The user device architecture gone out does not constitute the restriction to user equipment, may include components more more or fewer than diagram, or Combine certain components or different components arrangement.

Each component parts of user equipment is specifically introduced with reference to Fig. 7:

Memory 709 can be used for storing software program and module, and processor 701 is stored in memory 709 by operation Software program and module, to execute various function application and the data processing of base station.Memory 709 can include mainly Storing program area and storage data field, wherein storing program area can storage program area, the application journey needed at least one function Sequence (such as broadcast capability) etc.;Storage data field can be stored uses created data (such as road of transferring accounts according to payment platform Diameter list etc.) etc..In addition, memory 709 may include high-speed random access memory, can also include non-volatile memories Device, for example, at least a disk memory, flush memory device or other volatile solid-state parts.In the embodiment of the present application The program of middle retransfer scheduling and the data received are stored in memory 709, and when it is desired to be used, processor 701 is from storage It is called in device 709.

Processor 701 is the control centre of base station, can carry out retransfer scheduling according to the retransfer scheduling method of setting.Processing Device 701 is stored in memory using the various pieces of various interfaces and the entire user equipment of connection by running or executing Software program in 709 and/or module, and the data being stored in memory 709 are called, execute the various work(of user equipment Data can and be handled, to solve the problem of that transmission time is long to influence the perception rate of user in the prior art.

It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.

In several embodiments provided herein, it should be understood that disclosed system, device and method can be with It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit It divides, only a kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or The mutual coupling, direct-coupling or communication connection discussed can be the indirect coupling by some interfaces, device or unit It closes or communicates to connect, can be electrical, machinery or other forms.

The unit illustrated as separating component may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme 's.

In addition, each functional unit in each embodiment of the application can be integrated in a processing unit, it can also It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.Above-mentioned integrated list The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.

If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product When, it can be stored in a computer read/write memory medium.Based on this understanding, the technical solution of the application is substantially The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words It embodies, which is stored in a storage medium, including some instructions are used so that a computer Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the application Portion or part steps.And storage medium above-mentioned includes:USB flash disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disc or CD etc. are various can store program The medium of code.

The above, above example are only to illustrate the technical solution of the application, rather than its limitations;Although with reference to before Embodiment is stated the application is described in detail, it will be understood by those of ordinary skill in the art that:It still can be to preceding The technical solution recorded in each embodiment is stated to modify or equivalent replacement of some of the technical features;And these Modification or replacement, the spirit and scope of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution.

Claims (18)

1. a kind of uplink data scheduling method, which is characterized in that including:
First equipment sends first message at the T moment to user equipment, and the first message includes sending used in the first PDU Resource scheduling information;
If first equipment, when not determining the decoding result of the first PDU at the T+m moment, first equipment is in the T+ The m moment sends second message to the user equipment, and the second message is carried decodes knot for the acquiescence of the first PDU Fruit, the acquiescence decoding result are ACK, and the m is the cycle period of HARQ processes;
First equipment determines the true decoding result of the first PDU according to the first PDU received;
First equipment sends the third message at the T+A*m moment to the user equipment, and the third message carries True decoding result instruction, so that the user equipment indicates to determine whether to empty described the according to the true decoding result The data of one PDU, the A are the integer more than 1.
2. uplink data scheduling method according to claim 1, which is characterized in that the first equipment is set at the T moment to user Before preparation send first message, the method further includes:
First equipment receives the scheduling request that the user equipment is sent, and the scheduling request is for asking described first to set Standby is the first PDU distributing radio resources.
3. uplink data scheduling method according to claim 1, which is characterized in that first equipment is according to receiving After first PDU determines the true decoding result of the first PDU, the method further includes:
When the true decoding result indicates decoding failure, the data volume compensation of the first PDU1 described in first equipment scheduling Return buffering area.
4. uplink data scheduling method according to claim 1, which is characterized in that when the true decoding result expression is translated When code failure, the third message further includes retransmitting resource scheduling information used in the first PDU.
5. a kind of uplink data scheduling method, which is characterized in that including:
User equipment sends the first PDU to the first equipment;
The user equipment receives the first message that first equipment is sent, and the first message is carried for described first The acquiescence of PDU decodes as a result, acquiescence decoding result is ACK;
The user equipment confirms true decoding result of first equipment to the first PDU;
When the true scheduling result indicates that decoding is correct, then the user equipment empties the data of the first PDU.
6. uplink data scheduling method according to claim 5, which is characterized in that the user equipment confirms described first Equipment includes to the true decoding result of the first PDU:
The user equipment receives the second message that first equipment is sent, and the first message carries true decoding result Instruction;
The user equipment determines the true decoding result according to the true decoding result instruction.
7. uplink data scheduling method according to claim 6, which is characterized in that when the true scheduling result expression is translated Code failure, then the second message further includes retransmitting resource scheduling information used in the first PDU.
8. uplink data scheduling method according to claim 5, which is characterized in that the user equipment confirms described first Equipment includes to the true decoding result of the first PDU:
After the user equipment receives the preset time period of the first message, confirm that the acquiescence decoding result is described true Decode result.
9. a kind of controlling equipment, the controlling equipment is the first equipment, which is characterized in that including:
Transmit-Receive Unit, for sending first message to user equipment at the T moment, the first message includes sending the first PDU institutes The resource scheduling information used;
If first equipment is not when determining the decoding result of the first PDU at the T+m moment, the Transmit-Receive Unit is additionally operable to The T+m moment sends second message to the user equipment, and the second message carries the acquiescence for the first PDU As a result, acquiescence decoding result is ACK, the m is the cycle period of HARQ processes for decoding;
Determination unit, the true decoding result for determining the first PDU according to the first PDU received;
The Transmit-Receive Unit is additionally operable to send the third message, the third to the user equipment at the T+A*m moment Message carries true decoding result instruction, so that the user equipment determines whether according to the true decoding result instruction The data of the first PDU are emptied, the A is the integer more than 1.
10. controlling equipment according to claim 9, which is characterized in that the controlling equipment further includes:
The Transmit-Receive Unit is additionally operable to receive the scheduling request that the user equipment is sent, and the scheduling request is described for asking First equipment is the first PDU distributing radio resources.
11. controlling equipment according to claim 9, which is characterized in that the controlling equipment further includes:
Scheduling unit, when the true decoding result indicates decoding failure, the data volume for dispatching the first PDU1 is mended Repay back buffering area.
12. controlling equipment according to claim 9, which is characterized in that when the true decoding result indicates decoding failure When, the third message further includes retransmitting resource scheduling information used in the first PDU.
13. a kind of user equipment, which is characterized in that including:
Transmit-Receive Unit, for sending the first PDU to the first equipment;
The Transmit-Receive Unit is additionally operable to receive the first message that first equipment is sent, and the first message, which carries, to be used for The acquiescence of first PDU decodes as a result, acquiescence decoding result is ACK;
Confirmation unit, for confirming true decoding result of first equipment to the first PDU;
Unit is emptied, when the true scheduling result indicates that decoding correctly, is then used to empty the data of the first PDU.
14. user equipment according to claim 13, which is characterized in that the confirmation unit includes:
Receiving module, the second message sent for receiving first equipment, the first message carry true decoding knot Fruit indicates;
First determining module, for determining the true decoding result according to the true decoding result instruction.
15. user equipment according to claim 14, which is characterized in that when the true scheduling result indicates that decoding is lost It loses, then the second message further includes retransmitting resource scheduling information used in the first PDU.
16. user equipment according to claim 13, which is characterized in that the confirmation unit includes:
Second determining module, after the Transmit-Receive Unit receives the preset time period of the first message, for confirming the acquiescence Decoding result is the true decoding result.
17. a kind of computer readable storage medium, including instruction, when run on a computer so that computer executes such as Method described in claim 1-8 any one.
18. a kind of computer program product including instruction, when run on a computer so that computer executes such as right It is required that the method described in 1-8 any one.
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