CN105978671A

CN105978671A - Indication method for HARQ (Hybrid Automatic Repeat reQuest) retransmission and associated devices

Info

Publication number: CN105978671A
Application number: CN201610478522.1A
Authority: CN
Inventors: 朱广勇
Original assignee: Shenzhen Jinli Communication Equipment Co Ltd
Current assignee: Shenzhen Jinli Communication Equipment Co Ltd
Priority date: 2016-06-27
Filing date: 2016-06-27
Publication date: 2016-09-28
Also published as: WO2018000841A1

Abstract

Embodiments of the invention provide an indication method for HARQ (Hybrid Automatic Repeat reQuest) retransmission and associated devices. The method comprises the following steps that a base station receives an uplink signal of a terminal on a PUSCH (Physical Uplink Shared Channel) corresponding to a target transmission block in a process for a licensed spectrum to assist an unlicensed spectrum to carry out uplink non-adaptive HARQ; the base station decodes the uplink signal of the terminal to obtain a decoding result; the base station generates DCI (Downlink Control Information) in a target format according to the decoding result, wherein the DCI in the target format is used for indicating whether the terminal needs to carry out uplink non-adaptive HARQ retransmission; and the base station sends the DCI in the target format to the terminal through a PDCCH (Physical Downlink Control Channel), so that the terminal analyzes the DCI in the target format to determine whether to carry out uplink non-adaptive HARQ retransmission on the target transmission block. Through implementing the embodiments, a new DCI format is added to carry out indication of the uplink non-adaptive HARQ retransmission.

Description

The indicating means of a kind of HARQ re-transmission and relevant device

Technical field

The present invention relates to communication technical field, particularly relate to indicating means that a kind of HARQ retransmits and relevant set Standby.

Background technology

Along with popularizing of subscriber equipment and sharply increasing of message volume, frequency spectrum is authorized increasingly to be not enough to Higher network capacity is provided.In order to meet growing network demand, expand on the basis of authorizing frequency spectrum Big use unlicensed spectrum becomes an important feasible direction.3GPP(3rd Generation Partnership Project, third generation partner program) tissue proposes LAA (Licensed Assisted Access, awards Power auxiliary access) technology with realize authorize frequency spectrum auxiliary under use unauthorized frequency spectrum resource.In order to make Authorize frequency spectrum preferably to coexist with unlicensed spectrum, LAA system introduces LBT (Listen Before Talk, listem-before-talk) mechanism, the most first carry out the monitoring of channel status, it is judged that use Channel the most occupied, channel do not have occupied on the premise of can be on the channel of this free time It is transmitted, is not transmitted.

At present, in LTE (Long Term Evolution, Long Term Evolution) system, at up non-self-adapting HARQ (Hybrid Automatic Repeat reQuest, hybrid automatic repeat-request) transmitting procedure needs At channel PHICH, (Physical Hybrid-ARQ Indicator Channel, physical mixed autonomous retransmission indicates Channel) on carry out downstream feedback, to indicate whether that needs retransmit.But, in LAA system, by In introducing LBT mechanism, it is impossible to ensureing that the transmission of upstream or downstream necessarily can be carried out, therefore 3GPP is Determine to cancel the downstream feedback of PHICH channel in LAA system, PHICH channel therefore cannot be utilized Instruction ascending HARQ is the need of retransmitting.Based on the problems referred to above, how to carry out in LAA system on The instruction that row non-self-adapting HARQ retransmits is the key issue needing solution at present badly.

Summary of the invention

Embodiments provide indicating means and relevant device that a kind of HARQ retransmits, it is possible to by increasing Add the mode of new DCI format to carry out the instruction that up non-self-adapting HARQ retransmits.

Embodiment of the present invention first aspect provides the instruction side that a kind of hybrid automatic repeat-request HARQ retransmits Method, including:

Base station is authorizing frequency spectrum auxiliary unlicensed spectrum to carry out in up non-self-adapting HARQ procedure, receives eventually End signal of uplink on the Physical Uplink Shared Channel PUSCH that object transmission block is corresponding；

The described signal that described terminal uplink is transmitted by described base station is decoded, to obtain decoded result；

Described base station, according to described decoded result, generates the Downlink Control Information DCI of object format, described mesh The DCI of style formula is used for indicating described terminal to retransmit the need of carrying out up non-self-adapting HARQ；

Described base station sends described object format by physical downlink control channel PDCCH to described terminal Whether DCI, so that described terminal resolves the DCI of described object format, to determine on described object transmission block Carry out described up non-self-adapting HARQ to retransmit.

Embodiment of the present invention second aspect provides the instruction side that a kind of hybrid automatic repeat-request HARQ retransmits Method, including:

Terminal is believed to base station uplink on the Physical Uplink Shared Channel PUSCH that object transmission block is corresponding Number, so that the described signal that described terminal uplink is transmitted by described base station is decoded, and according to decoded result Generating the Downlink Control Information DCI, the DCI of described object format of object format is used for indicating the described terminal be No needs carries out up non-self-adapting HARQ re-transmission；

Described terminal receives the described mesh that described base station is sended over by physical downlink control channel PDCCH The DCI of style formula；

Whether described terminal resolves the DCI of described object format, carry out on described object transmission block to determine Described up non-self-adapting HARQ retransmits.

The embodiment of the present invention third aspect provides a kind of base station, including:

Receive unit, for authorizing frequency spectrum auxiliary unlicensed spectrum to carry out up non-self-adapting HARQ procedure In, receive terminal letter of uplink on the Physical Uplink Shared Channel PUSCH that object transmission block is corresponding Number；

Decoding unit, is decoded for the described signal transmitting described terminal uplink, to obtain decoding knot Really；

Signal generating unit, for according to described decoded result, generating the Downlink Control Information DCI of object format, The DCI of described object format is used for indicating described terminal the need of carrying out up non-self-adapting HARQ weight Pass；

Transmitting element, for sending described target lattice by physical downlink control channel PDCCH to described terminal The DCI of formula, so that described terminal resolves the DCI of described object format, to determine at described object transmission block On whether carry out described up non-self-adapting HARQ retransmit.

Embodiment of the present invention fourth aspect provides a kind of terminal, including:

Transmitting element, is used on the Physical Uplink Shared Channel PUSCH that object transmission block is corresponding to base station Row transmission signal, so that described signal is decoded by described base station, and generates target lattice according to decoded result The Downlink Control Information DCI of formula, the DCI of described object format are used for indicating described terminal the need of carrying out Up non-self-adapting HARQ retransmits；

Receive unit, for receiving the institute that described base station is sended over by physical downlink control channel PDCCH State the DCI of object format；

Resolution unit, for resolving the DCI of described object format, to determine on described object transmission block be No carry out described up non-self-adapting HARQ retransmit.

In the embodiment of the present invention, base station carries out up non-self-adapting in mandate frequency spectrum auxiliary unlicensed spectrum In HARQ procedure, receiving terminal on the Physical Uplink Shared Channel PUSCH that object transmission block is corresponding After the signal of uplink, this signal is decoded, to obtain decoded result, it is possible to according to this decoding Result generates the Downlink Control Information DCI of object format, and Physical Downlink Control Channel can be passed through in base station PDCCH sends the DCI of this object format to terminal, so that terminal resolves the DCI of this object format, with really It is scheduled on object transmission block and whether carries out up non-self-adapting HARQ re-transmission.Visible, implement the present invention and implement Example, in the system authorizing frequency spectrum auxiliary unlicensed spectrum, owing to the introducing of LBT mechanism makes PHICH believe In the case of road does not carries out downstream feedback in ascending HARQ transmitting procedure, base station can generate a kind of new lattice The DCI information of formula, and being transmitted by PDCCH channel, with realize to terminal the need of carrying out on Row non-self-adapting HARQ retransmits and indicates.

Accompanying drawing explanation

For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to required in embodiment The accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is some realities of the present invention Execute example, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to Other accompanying drawing is obtained according to these accompanying drawings.

Fig. 1 is the schematic diagram of a kind of application scenarios that the embodiment of the present invention provides；

Fig. 2 is the schematic flow sheet of the indicating means that a kind of HARQ that the embodiment of the present invention provides retransmits；

Fig. 3 is the process schematic of a kind of up non-self-adapting HARQ transmission that the embodiment of the present invention provides；

Fig. 4 is the schematic flow sheet of the indicating means that the another kind of HARQ that the embodiment of the present invention provides retransmits；

Fig. 5 is the structural representation of a kind of base station that the embodiment of the present invention provides；

Fig. 6 is the structural representation of the another kind of base station that the embodiment of the present invention provides；

Fig. 7 is the structural representation of another base station that the embodiment of the present invention provides；

Fig. 8 is the structural representation of a kind of terminal that the embodiment of the present invention provides；

Fig. 9 is the structural representation of the another kind of terminal that the embodiment of the present invention provides；

Figure 10 is the structural representation of the another kind of terminal that the embodiment of the present invention provides；

Figure 11 is the structural representation of another terminal that the embodiment of the present invention provides.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly Chu, it is fully described by, it is clear that described embodiment is a part of embodiment of the present invention rather than all Embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative labor The every other embodiment obtained under dynamic premise, broadly falls into the scope of protection of the invention.

Embodiments provide indicating means and relevant device that a kind of HARQ retransmits, authorize frequency spectrum In the system of auxiliary unlicensed spectrum, owing to the introducing of LBT mechanism makes PHICH channel at ascending HARQ In the case of not carrying out downstream feedback in transmitting procedure, base station can generate the DCI information of a kind of format, And be transmitted by PDCCH channel, to realize terminal the need of carrying out up non-self-adapting HARQ Re-transmission indicates.It is described in detail individually below.

In order to be better understood from the embodiment of the present invention, the most first application scenarios disclosed in the embodiment of the present invention is entered Line description.Refer to the schematic diagram that Fig. 1, Fig. 1 are a kind of application scenarios that the embodiment of the present invention provides.At figure In application scenarios shown in 1, including base station and at least one terminal, wherein, base station can be entered with multiple terminals Row communication connection.Terminal can include cell phone, panel computer, palm PC, personal digital assistant (Personal Digital Assistant, PDA), mobile internet device (Mobile Internet Device, MID), each Terminal Type such as Intelligent worn device (such as intelligent watch, Intelligent bracelet etc.), the embodiment of the present invention It is not construed as limiting.In the application scenarios shown in Fig. 1, in order to the peak rate and network capacity meeting user carries The requirement risen, can introduce carrier aggregation (Carrier Aggregation, CA) technology, will multiple continuous or Discontinuous carrier aggregation together, thus increases the transmission bandwidth of system, effectively promotes downstream transmission speed Rate.But, owing to authorizing frequency spectrum resource limited, growing customer group increasingly can not be met, because of This, can carry out spread-spectrum resource by using unlicensed spectrum.In order to realize under the auxiliary authorizing frequency spectrum Using unlicensed spectrum, 3GPP proposes mandate auxiliary and accesses LAA technology.In LAA system, due to Introducing unlicensed spectrum, needs consideration mandate frequency spectrum coexists, accordingly, it would be desirable to observe with unlicensed spectrum The use rule listem-before-talk LBT mechanism of unlicensed spectrum.

In the embodiment of the present invention, when base station and terminal carry out data transmission, owing to introducing LBT mechanism, base Stand in before carrying out data transmission, need first to carry out the monitoring of channel status, to judge the busy-idle condition of channel, If channel status is idle condition, then this channel can be used to carry out data transmission；If channel status is Busy (the most occupied) state, then cannot use this channel.In existing LTE system, ascending HARQ Retransmission processes is specifically as follows: base station is when receiving the data that terminal sends, to this decoding data, If decoding unsuccessfully, then require that terminal retransmits data, now, base station can by the re-transmission data that receive with Previously received data merge further decoding.Ascending HARQ retransmits can be divided into adaptive HARQ weight Pass and non-self-adapting HARQ retransmits.Wherein, adaptive HARQ retransmission processes is in order to avoid the upper line frequency of segmentation Territory resource or avoid the resource with Stochastic accessing to collide, not only needs to carry out indicated number by PHICH channel According to decoding correctness, also need by channel PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) transmit the control information retransmitted, again for the resource of terminal distribution HARQ re-transmission, Including modulation coding mode, the Physical Resource Block of employing, transport block size, re-transmission period etc., so that eventually End carries out the re-transmission of HARQ in new resource.Non-self-adapting HARQ retransmission processes is believed by PHICH Road is controlled, and PHICH channel only transmits whether data are correctly received, i.e. the need of the information retransmitted, Without transmitting other information, terminal carries out the resource of HARQ re-transmission and uses the resource identical with transmission last time. The motility that adaptive HARQ retransmits is higher, but can be greatly increased the complexity of HARQ flow process, for letter The expense of order is bigger.Rather than adaptive HARQ retransmits the signaling consumption saving system to a great extent. But, in LAA system, owing to introducing LBT mechanism, it is impossible to ensure the transmission one of upstream or downstream Surely can carry out, therefore cancel the downstream feedback on PHICH channel, i.e. cannot send on PHICH Downlink Control Information (Downlink Control Information, DCI), only retains PDCCH channel and carries out The transmission of DCI.

Based on the problems referred to above, for up non-self-adapting HARQ retransmission processes, the embodiment of the present invention is existing Add a kind of new up DCI format on the basis of up DCI format, be used for carrying out PUSCH The scheduling that (Physical Uplink Shared Channel, Physical Uplink Shared Channel) retransmits.LTE at present In system, the form of DCI information has multiple, at least include form 0, form 1, form 1A, form 1B, Form 2, form 2A, form 3, format 4 etc., wherein, form 0 and format 4 are two kinds of up DCI Form, is used for indicating PUSCH, i.e. the control information of uplink.Wherein, the DCI of form 0 transmits The field that information can include has: form 0 and the mark of form 1A differentiation, frequency hopping flag bit, Resource Block divide Join with frequency-hopping resource distribution, Modulation and Coding Scheme and redundancy versions, new data instruction (New Data Indicator, NDI), the transmission power control command of PUSCH that is scheduled, CSI (Channel State Information, Channel condition information) request, SRS (Sounding Reference Signal, detection reference signal) request, Up call number, descending call number etc., for indicating the physical resource of PUSCH transmission, tone hopping information, anti- The information such as feedforward information request, modulation coding mode, redundancy versions.The information of the DCI transmission of format 4 is permissible Including field have: resource block assignments, the transmission power control command of the PUSCH being scheduled, reference signal Cyclic shift, up call number, descending call number, Modulation and Coding Scheme and redundancy versions, NDI information, CSI request, SRS request etc., for indicating the request of the physical resource of PUSCH transmission, feedback information, adjusting The information such as coded system processed, redundancy versions.The up DCI format that the embodiment of the present invention increases newly can include Field has: NDI information and the HARQ number of carrying out, and wherein, NDI information is used for indicating ascending HARQ to retransmit Or new data transmission, HARQ process number retransmits corresponding transmission block for indicating.The DCI phase of newly-increased form Than existing formatted DCI, simplify the control information in DCI, reduce the signaling consumption of system.Pass through Implement this programme, it is possible to by the DCI information of a kind of format of PDCCH transmission, to realize end End indicates the need of carrying out up non-self-adapting HARQ re-transmission.It is understood that the present invention is real The scheme executing example proposition goes for LAA system, it is also possible to frequency spectrum auxiliary is non-awards because authorizing to be applicable to other Weigh frequency spectrum and introduce LBT mechanism and make PHICH channel cannot be carried out the evolution system of downstream feedback, the present invention Embodiment is not construed as limiting.

Based on the application scenarios shown in Fig. 1, the embodiment of the invention discloses the instruction side that a kind of HARQ retransmits Method.Refer to the stream that Fig. 2, Fig. 2 are the indicating means that a kind of HARQ that the embodiment of the present invention provides retransmits Journey schematic diagram.As in figure 2 it is shown, the indicating means that this HARQ retransmits may comprise steps of:

201, base station is authorizing frequency spectrum auxiliary unlicensed spectrum to carry out, in up non-self-adapting HARQ procedure, connecing Receive terminal signal of uplink on the Physical Uplink Shared Channel PUSCH that object transmission block is corresponding.

In the embodiment of the present invention, carry out up non-self-adapting HARQ mistake authorizing frequency spectrum auxiliary unlicensed spectrum Cheng Zhong, base station first can send Downlink Control Information to terminal, carries out uplink (this time with dispatch terminal Uplink is transmission first), now, the Downlink Control Information that base station sends can be the DCI of existing form, Such as the DCI or the DCI of format 4 of form 0, it is used for Physical Resource Block, the tune indicating PUSCH transmission corresponding The information such as coded system processed, redundancy versions, NDI information, transmission block.Terminal receives Downlink Control Information After, on PUSCH channel, carry out uplink according to the instruction in this Downlink Control Information, so that base station Terminal signal of uplink on PUSCH channel can be received, signal here can be data or some Customizing messages, the embodiment of the present invention is not construed as limiting.

202, the signal that terminal uplink is transmitted by base station is decoded, to obtain decoded result.

In the embodiment of the present invention, after base station receives the signal that terminal uplink transmits, base station can be right This signal is decoded, to obtain decoded result.Wherein, decoded result can be decoding failure or be decoded into Merit.

203, base station is according to this decoded result, generates the Downlink Control Information DCI of object format.

In the embodiment of the present invention, after the signal received is decoded by base station, can come according to decoded result Generating the DCI of object format, wherein, the DCI of object format can serve to indicate that terminal is the need of carrying out Up non-self-adapting HARQ retransmits.The DCI of object format can include that NDI information and/or HARQ enter Cheng Hao, wherein, NDI information can serve to indicate that terminal is the need of carrying out up non-self-adapting HARQ weight Passing, i.e. indicating the transmission scheduled in the DCI of this object format is that up non-self-adapting HARQ retransmits or new Data are transmitted；HARQ process number can serve to indicate that and carries out the target biography that up non-self-adapting HARQ retransmits Defeated piece, which time transmission or which transmission block, terminal here i.e. indicates scheduled in the DCI of this object format is It is to be transmitted on object transmission block.Can in addition it is also possible to increase some in the DCI of this object format The field of choosing, such as modulation coding mode, Physical Resource Block etc., can increase on the basis of relatively low signaling consumption Motility, the embodiment of the present invention is not construed as limiting.

In the embodiment of the present invention, up non-self-adapting HARQ retransmits and can include that synchronous HARQ retransmits or different Step HARQ retransmits, and wherein, synchronous HARQ retransmits the transmission (re-transmission) referring to a HARQ process Occur when fixing when, due to the generation moment of the previously known transmission of terminal, therefore need not extra letter Make expense to indicate HARQ process number, now, the DCI of this object format can only comprise NDI information, And HARQ process number can not be comprised.When asynchronous HARQ retransmits the transmission referring to a HARQ process Between do not fix, terminal in advance do not know transmission the generation moment, therefore HARQ process number need together with control Information sends together, now, not only comprises NDI information in the DCI of this object format, also needs to comprise HARQ process number.

204, base station sends the DCI of this object format by physical downlink control channel PDCCH to terminal, So that terminal resolves the DCI of this object format, with determine whether carry out on object transmission block up non-adaptive HARQ is answered to retransmit.

In the embodiment of the present invention, after base station generates the DCI of object format, PDCCH channel can be passed through The DCI of this object format is sent to terminal, after terminal receives the DCI of this object format, can be to this mesh The DCI of style formula resolves, and determines on object transmission block up the need of carrying out by analysis result Non-self-adapting HARQ retransmits.

As the optional embodiment of one, retransmit for synchronous HARQ when up non-self-adapting HARQ retransmits Time, the DCI of this object format can include that a NDI information, a NDI information can serve to indicate that Whether terminal carries out up non-self-adapting HARQ retransmits；

Wherein, step 204 base station sends this object format by physical downlink control channel PDCCH to terminal DCI so that terminal resolves the DCI of this object format, on determining and whether carrying out on object transmission block The detailed description of the invention that row non-self-adapting HARQ retransmits can be:

Base station sends the DCI of this object format by physical downlink control channel PDCCH to terminal, so that eventually End resolves the DCI of this object format, to determine that terminal is in object transmission according to the NDI information parsed Whether carry out up non-self-adapting HARQ on block to retransmit.

In this embodiment, terminal is by resolving the DCI of this object format, to obtain a NDI information, Can determine that terminal is by up non-self-adapting HARQ and retransmits or new data by a NDI information Transmission.Concrete, terminal can be by the NDI in the DCI information received last in object transmission block Information compares with a NDI information, to determine that terminal is the need of carrying out up non-self-adapting HARQ Retransmit.Such as, in the last DCI information received on object transmission block, the value of NDI is 0, and the Value in one NDI information is 1, i.e. NDI value relatively before once transmission there occurs upset, then may indicate that base Standing successfully decoded, terminal retransmits without carrying out up non-self-adapting HARQ, uses this HARQ to enter when next time Cheng Shi, the content situation that will store before, such that it is able to reuse this HARQ process, and at this HARQ Carry out the data that middle transmission is new.And for example, NDI in the last DCI information received on object transmission block Value be 0, and the value in a NDI information is also 0, i.e. NDI value relatively before once transmit and turn over Turning, then may indicate that base station decodes unsuccessfully, terminal needs to carry out up non-self-adapting HARQ and retransmits.

As the optional embodiment of one, retransmit for asynchronous HARQ when up non-self-adapting HARQ retransmits Time, the DCI of this object format can include the second new data instruction NDI information and HARQ process number, its In, the 2nd NDI information can serve to indicate that whether terminal carries out up non-self-adapting HARQ and retransmit, HARQ process number can serve to indicate that and carries out the object transmission block that up non-self-adapting HARQ retransmits；

Base station sends the DCI of this object format by physical downlink control channel PDCCH to terminal, so that eventually End resolves the DCI of this object format, up non-adaptive to determine whether terminal is carried out according to the 2nd NDI information Answer HARQ to retransmit and determine according to HARQ process number and carry out the mesh that up non-self-adapting HARQ retransmits Mark transmission block.

In this embodiment, due to when asynchronous HARQ retransmits uplink feedback or scheduling time with HARQ process number does not have relation one to one, therefore needs explicit to indicate this up non-self-adapting The scheduling that HARQ retransmits, for which HARQ process, i.e. points out the DCI scheduling of this object format Being which time transmission or which transmission block, wherein, HARQ process number and transmission block have one-to-one relationship.

In this embodiment, terminal is by resolving the DCI of this object format, to obtain the 2nd NDI information With HARQ process number, first can determine according to this HARQ process number and carry out up non-self-adapting HARQ The object transmission block retransmitted, then by the NDI letter in the DCI information received last in this object transmission block Breath compares with the 2nd NDI information, to determine that terminal is the need of carrying out up non-self-adapting HARQ weight Pass.Such as, as the NDI value in the DCI information received last in object transmission block and the 2nd NDI During value difference in information, then terminal retransmits without carrying out up non-self-adapting HARQ；When object transmission block When NDI value in the DCI information that the middle last time receives is identical with the value in the 2nd NDI information, then terminal Need to carry out up non-self-adapting HARQ to retransmit.

As the optional embodiment of one, the method described by Fig. 2 can also comprise the following steps:

21) when the DCI of this object format indicates terminal to need to carry out up non-self-adapting HARQ re-transmission, Base station receives terminal this signal of uplink again on the PUSCH channel that object transmission block is corresponding.

In this embodiment, retransmit when terminal carries out up non-self-adapting HARQ on PUSCH channel Time, once transmit identical resource before using and carry out HARQ re-transmission, such as, before employing, once transmit phase The resources such as Physical Resource Block together, modulation coding mode, redundancy versions carry out up non-self-adapting HARQ Retransmit.

Additionally, when the DCI of this object format indicates terminal not carry out up non-self-adapting HARQ re-transmission, Base station can receive terminal new data of uplink on the PUSCH channel that object transmission block is corresponding.

For example, referring to Fig. 3, Fig. 3 is the one up non-self-adapting HARQ that the embodiment of the present invention provides The process schematic of transmission.As it is shown on figure 3, user side (terminal) carries out upstream data on sub-frame of uplink Send, after base station side receives this upstream data, this upstream data detected and processed (such as decoding), And according to the DCI (i.e. the DCI of object format) of testing result generation format, and sent by descending sub frame The DCI of this format；After terminal receives the DCI of this format, the DCI of this format can be carried out Resolving, if NDI overturn relatively last time, then terminal will carry out up non-self-adapting HARQ re-transmission； If NDI was overturn relatively last time, then terminal does not carry out up non-self-adapting HARQ re-transmission.

As the optional embodiment of one, before performing step 204, the method described by Fig. 2 also may be used To comprise the following steps:

22) base station utilizes the listem-before-talk LBT mechanism PDCCH to the DCI for transmitting this object format Channel carries out state-detection；When detecting that this PDCCH channel is idle condition, then trigger base station and perform step Rapid 204.

In this embodiment, in order to make mandate frequency spectrum preferably coexist with unlicensed spectrum, in LAA system In introduce LBT mechanism, when the PDCCH channel part for the DCI that transmits this object format is deployed on non-awarding Time on power frequency spectrum, before carrying out the transmission of DCI of object format, first with LBT mechanism to this PDCCH Channel carries out state-detection, and when this PDCCH channel idle (the most unoccupied) being detected, then may be used in base station To send the DCI of this object format at this PDCCH channel, otherwise wait for just sending until time idle.

Additionally, when the PDCCH channel part of the DCI for transmitting this object format is deployed on mandate frequency spectrum, Then can directly transmit the DCI of this object format on this PDCCH channel, and without using LBT mechanism This PDCCH channel is carried out state-detection.

In the method described by Fig. 2, base station carries out up non-adaptive in mandate frequency spectrum auxiliary unlicensed spectrum Answer in HARQ procedure, receiving terminal at Physical Uplink Shared Channel PUSCH corresponding to object transmission block After the signal of upper uplink, this signal is decoded, to obtain decoded result, it is possible to according to this solution Code result generates the Downlink Control Information DCI of object format, and Physical Downlink Control Channel can be passed through in base station PDCCH sends the DCI of this object format to terminal, so that terminal resolves the DCI of this object format, with really It is scheduled on object transmission block and whether carries out up non-self-adapting HARQ re-transmission.By implementing described by Fig. 2 Method, in the system authorizing frequency spectrum auxiliary unlicensed spectrum, owing to the introducing of LBT mechanism makes PHICH In the case of channel does not carries out downstream feedback in ascending HARQ transmitting procedure, base station can generate a kind of new The DCI information of form, and be transmitted by PDCCH channel, to realize terminal the need of carrying out Up non-self-adapting HARQ retransmits and indicates.Additionally, come by the DCI information using a kind of format Complete the process that up non-self-adapting HARQ retransmits so that system carries out up under less signaling consumption HARQ retransmits, it is ensured that the reliability of data transmission reduces signaling consumption simultaneously.

Based on the application scenarios shown in Fig. 1, the embodiment of the invention discloses the instruction that another kind of HARQ retransmits Method.Referring to Fig. 4, Fig. 4 is the indicating means that the another kind of HARQ that the embodiment of the present invention provides retransmits Schematic flow sheet.As shown in Figure 4, the indicating means that this HARQ retransmits may comprise steps of:

401, terminal on the Physical Uplink Shared Channel PUSCH that object transmission block is corresponding to base station up biography Defeated signal, so that the signal that terminal uplink is transmitted by base station is decoded, and generates target according to decoded result The Downlink Control Information DCI of form.

In the embodiment of the present invention, terminal on PUSCH channel before the upstream signals of base station, Ke Yixian Receiving the Downlink Control Information that base station issues, carry out uplink with dispatch terminal, this time uplink is permissible For transmitting first.This Downlink Control Information can be the DCI of existing form, is used for indicating PUSCH transmission pair The information such as the Physical Resource Block answered, modulation coding mode, redundancy versions, NDI information, transmission block.Terminal After receiving this Downlink Control Information, enterprising at PUSCH channel according to the instruction in this Downlink Control Information Row uplink；Base station receives terminal on PUSCH channel after the signal of uplink, can be to this letter Number it is decoded, to obtain decoded result, and generates the DCI of object format according to this decoded result.

In the embodiment of the present invention, decoded result can be decoding failure or successfully decoded.The DCI of object format Be a kind of new, be different from the most formatted DCI, can serve to indicate that terminal is up non-the need of carrying out Adaptive HARQ retransmits, and it comprises less field compared to the most formatted DCI, reduces signaling and open Pin.The DCI of this object format at least can include but not limited to NDI information and/or HARQ process number. The signal of terminal uplink transmission can be data or some customizing messages, and the embodiment of the present invention is not construed as limiting.

In the embodiment of the present invention, when the PUSCH channel part for upstream signals is deployed on unlicensed spectrum Time, then terminal is before upstream signals, first with LBT mechanism, this PUSCH channel is carried out state Detection, is just transmitted when this PUSCH channel idle；When the PUSCH for upstream signals believes Road be deployed in mandate frequency spectrum time, terminal can without carry out LBT Channel Detection can be at this PUSCH channel On carry out uplink.

402, terminal receives this object format that base station is sended over by physical downlink control channel PDCCH DCI.

403, terminal resolves the DCI of this object format, with determine whether carry out on object transmission block up non- Adaptive HARQ retransmits.

As the optional embodiment of one, retransmit for synchronous HARQ when up non-self-adapting HARQ retransmits Time, the DCI of this object format includes the first new data instruction NDI information, and a NDI information is used for indicating Whether terminal carries out up non-self-adapting HARQ retransmits；

Whether wherein, step 403 terminal resolves the DCI of this object format, to determine on object transmission block The detailed description of the invention carrying out up non-self-adapting HARQ re-transmission may comprise steps of:

41) terminal resolves the DCI of this object format, to obtain a NDI information；

42) terminal is according to a NDI information, determines whether carry out up non-self-adapting on object transmission block HARQ retransmits.

As the optional embodiment of one, step 42) terminal according to a NDI information, determine in target The detailed description of the invention whether carrying out up non-self-adapting HARQ re-transmission on transmission block can include following step Rapid:

42a) terminal obtains the NDI information included in the DCI of the first history object format, the first history The DCI of object format is the terminal DCI that distance current time is recently received on object transmission block；

42b) the NDI included in the DCI of terminal judges the oneth NDI information and the first history object format Information is the most consistent；

42c) the NDI information one included in the DCI of a NDI information and the first history object format During cause, terminal determines that needing to carry out up non-self-adapting HARQ on object transmission block retransmits；

42d) the NDI information included in the DCI of a NDI information and the first history object format is not Time consistent, terminal determines that not carrying out up non-self-adapting HARQ on object transmission block retransmits.

In this embodiment, after terminal parses a NDI information, can obtain at object transmission block Go forward the NDI information included in the DCI that once receives, and two NDI information are compared, with Judging that both are the most consistent, when consistent (both values overturn), then explanation terminal needs to carry out Up non-self-adapting HARQ retransmits；When inconsistent (both values there occurs upset), then terminal is described It is made without up non-self-adapting HARQ to retransmit.

As the optional embodiment of one, retransmit for asynchronous HARQ when up non-self-adapting HARQ retransmits Time, the DCI of this object format includes the second new data instruction NDI information and HARQ process number, wherein, 2nd NDI information is used for indicating terminal whether to carry out up non-self-adapting HARQ and retransmits, HARQ process number The object transmission block that up non-self-adapting HARQ retransmits is carried out for instruction；

43) terminal resolves the DCI of this object format, to obtain the 2nd NDI information and HARQ process number；

44) according to the 2nd NDI information, terminal determines whether that carrying out up non-self-adapting HARQ retransmits, and Determine according to HARQ process number and carry out the object transmission block that up non-self-adapting HARQ retransmits.

As the optional embodiment of one, step 44) terminal determines whether to carry out according to the 2nd NDI information Up non-self-adapting HARQ retransmits, and determines according to HARQ process number and carry out up non-self-adapting The detailed description of the invention of the object transmission block that HARQ retransmits may comprise steps of:

44a) terminal determines that according to HARQ process number the target carrying out up non-self-adapting HARQ re-transmission passes Defeated piece；

44b) terminal obtains the NDI information included in the DCI of the second history object format, the second history The DCI of object format is the terminal DCI that distance current time is recently received on object transmission block；

44c) the NDI included in the DCI of terminal judges the 2nd NDI information and the second history object format Information is the most consistent；

44d) the NDI information one included in the DCI of the 2nd NDI information and the second history object format During cause, terminal determines that needing to carry out up non-self-adapting HARQ on object transmission block retransmits；

44e) the NDI information included in the DCI of the 2nd NDI information and the second history object format is not Time consistent, terminal determines that not carrying out up non-self-adapting HARQ on object transmission block retransmits.

In this embodiment, after terminal parses the 2nd NDI information and HARQ process number, can be in order to Determine with HARQ process number and carry out the object transmission block that up non-self-adapting HARQ retransmits, then obtain This object transmission block is gone forward the NDI information included in the DCI that once receives, and by two NDI information Compare, the most consistent with both judgements, when consistent (both values overturn), then illustrate Terminal needs to carry out up non-self-adapting HARQ and retransmits；When inconsistent (both values there occurs upset), Then explanation terminal is made without up non-self-adapting HARQ re-transmission.

As the optional embodiment of one, the method described by Fig. 4 can also comprise the following steps:

45) when terminal determines that needing to carry out up non-self-adapting HARQ on object transmission block retransmits, eventually End on the PUSCH channel that object transmission block is corresponding to base station this signal of uplink again.

In this embodiment, need to carry out up non-self-adapting on object transmission block when terminal determines When HARQ retransmits, terminal is once transmitted identical resource by using carry out HARQ re-transmission with front, such as, Once transmit on the resources such as identical Physical Resource Block, modulation coding mode, redundancy versions carry out before employing Row non-self-adapting HARQ retransmits.

In this embodiment, when the PUSCH channel part for retransmitting is deployed on unlicensed spectrum, then terminal Before carrying out up non-self-adapting HARQ re-transmission, first with LBT mechanism, this PUSCH channel is carried out State-detection, just retransmits when this PUSCH channel idle；When this PUSCH channel part is deployed on mandate During frequency spectrum, terminal can retransmit without carrying out LBT Channel Detection on this PUSCH channel.

Additionally, when terminal determines that being made without up non-self-adapting HARQ on object transmission block retransmits, Terminal can be to the data that base station uplink is new on the PUSCH channel that object transmission block is corresponding.

Specifically, base station and terminal carry out the process of up adaptive HARQ transmission and may refer to shown in Fig. 3.

In the embodiment of the present invention, by implementing the method described by Fig. 4, assist unauthorized frequency authorizing frequency spectrum In the system of spectrum, owing to the introducing of LBT mechanism makes PHICH channel in ascending HARQ transmitting procedure In the case of not carrying out downstream feedback, terminal can receive the base station a kind of new lattice by PDCCH transmission The DCI information of formula, to realize indicating terminal the need of carrying out up non-self-adapting HARQ re-transmission. Additionally, complete, by the DCI information using a kind of format, the process that up non-self-adapting HARQ retransmits, System is made to carry out ascending HARQ re-transmission under less signaling consumption, it is ensured that the reliability of data transmission Reduce signaling consumption simultaneously.

Based on the application scenarios shown in Fig. 1, the embodiment of the invention discloses a kind of base station.Refer to Fig. 5, figure 5 is the structural representation of a kind of base station that the embodiment of the present invention provides, for performing what the embodiment of the present invention provided The indicating means that HARQ retransmits.As it is shown in figure 5, this base station may include that

Receive unit 501, for authorizing frequency spectrum auxiliary unlicensed spectrum to carry out up non-self-adapting HARQ During, receive terminal uplink on the Physical Uplink Shared Channel PUSCH that object transmission block is corresponding Signal.

In the embodiment of the present invention, carry out up non-self-adapting HARQ weight authorizing frequency spectrum auxiliary unlicensed spectrum During biography, base station first can send Downlink Control Information to terminal, carries out uplink (this time with dispatch terminal Uplink is transmission first), now, the Downlink Control Information that base station sends can be the DCI of existing form, Such as the DCI or the DCI of format 4 of form 0, it is used for Physical Resource Block, the tune indicating PUSCH transmission corresponding The information such as coded system processed, redundancy versions, NDI information, transmission block.Terminal receives Downlink Control Information After, on PUSCH channel, carry out uplink according to the instruction in this Downlink Control Information, so that receiving Unit 501 can receive terminal signal of uplink on PUSCH channel, and signal here can be several According to or some customizing messages, the embodiment of the present invention is not construed as limiting.

Decoding unit 502, for being decoded the signal of terminal uplink transmission, to obtain decoded result.

Signal generating unit 503, for according to this decoded result, generating the Downlink Control Information DCI of object format.

Wherein, the DCI of object format can serve to indicate that terminal is the need of carrying out up non-self-adapting HARQ retransmits.

Transmitting element 504, for sending this object format by physical downlink control channel PDCCH to terminal DCI so that terminal resolves the DCI of this object format, on determining and whether carrying out on object transmission block Row non-self-adapting HARQ retransmits.

Correspondingly, transmitting element 504 specifically may be used for by physical downlink control channel PDCCH to terminal Send the DCI of this object format, so that terminal resolves the DCI of this object format, with according to the parsed One NDI information determines whether terminal carries out up non-self-adapting HARQ on object transmission block and retransmit.

Correspondingly, transmitting element 504 specifically may be used for by physical downlink control channel PDCCH to terminal Send the DCI of this object format, so that terminal resolves the DCI of this object format, with according to the 2nd NDI letter Breath determines whether terminal carries out up non-self-adapting HARQ and retransmit and determine according to HARQ process number and carry out The object transmission block that up non-self-adapting HARQ retransmits.

As the optional embodiment of one, receive unit 501, it is also possible to for as the DCI of this object format When instruction terminal needs to carry out up non-self-adapting HARQ re-transmission, receive terminal corresponding at object transmission block Again this signal of uplink on PUSCH channel.

As the optional embodiment of one, when the PDCCH channel of the DCI for transmitting this object format When being deployed in unlicensed spectrum, need this PDCCH channel is carried out LBT detection.See also figure 6, Fig. 6 is the structural representation of the another kind of base station that the embodiment of the present invention provides, and is used for performing the present invention and implements The indicating means that the HARQ that example provides retransmits.Wherein, the base station shown in Fig. 6 is in the base station shown in Fig. 5 On the basis of further optimize and to obtain.Compared with the base station shown in Fig. 5, the base station described in Fig. 6 is all right Including:

Detector unit 505, for passing through physical downlink control channel PDCCH to terminal at transmitting element 504 Before sending the DCI of this object format, utilize listem-before-talk LBT mechanism to for transmitting this object format The PDCCH channel of DCI carries out state-detection.

Wherein, transmitting element 504 sends this object format by physical downlink control channel PDCCH to terminal The detailed description of the invention of DCI can be:

Transmitting element 504 is when detector unit 505 detects that this PDCCH channel is idle condition, by this PDCCH channel sends the DCI of this object format to terminal.

In the embodiment of the present invention, by implementing the base station shown in Fig. 5 and Fig. 6, assist non-awarding authorizing frequency spectrum In the system of power frequency spectrum, owing to the introducing of LBT mechanism makes PHICH channel be transmitted across at ascending HARQ In the case of journey does not carries out downstream feedback, the DCI information of a kind of format can be generated, and pass through PDCCH channel is transmitted, with realize to terminal the need of carry out up non-self-adapting HARQ retransmit into Row instruction.Additionally, complete up non-self-adapting HARQ weight by the DCI information using a kind of format The process passed so that system carries out ascending HARQ re-transmission under less signaling consumption, it is ensured that data pass Defeated reliability reduces signaling consumption simultaneously.

Based on the application scenarios shown in Fig. 1, the embodiment of the invention discloses another base station.Refer to Fig. 7, Fig. 7 is the structural representation of another base station that the embodiment of the present invention provides, and is used for performing the embodiment of the present invention The indicating means that the HARQ provided retransmits.As it is shown in fig. 7, this base station 700 may include that at least one Processor 701, such as CPU (Central Processing Unit, central processing unit), at least one input Device 702, at least one output device 703, memorizer 704 assembly such as grade.Wherein, these assemblies can lead to Cross one or more bus 705 to be communicatively coupled.It will be understood by those skilled in the art that shown in Fig. 7 The structure of base station 700 be not intended that the restriction to the embodiment of the present invention, it both can be busbar network, Can also be hub-and-spoke configuration, it is also possible to include that ratio illustrates more or less of parts, or combine some parts, Or different parts are arranged.Wherein:

In the embodiment of the present invention, input equipment 702 can include line interface, wave point etc., Ke Yiyong In the signal etc. receiving terminal uplink transmission.Output device 703 can include line interface, wave point etc., May be used for user equipment downlink transmission signal etc..

In the embodiment of the present invention, memorizer 704 can be high-speed RAM memorizer, it is also possible to be non-instability Memorizer (non-volatile memory), for example, at least one disk memory.Memorizer 704 is optional Can also is that at least one is located remotely from the storage device of aforementioned processor 701.As it is shown in fig. 7, memorizer Can include application program and data etc. in 704, the embodiment of the present invention is not construed as limiting.

In the base station 700 shown in Fig. 7, processor 701 may be used for calling the application of storage in memorizer 704 Program is to perform following operation:

Authorize frequency spectrum auxiliary unlicensed spectrum to carry out in up non-self-adapting HARQ procedure, trigger input dress Put 702 reception terminals letter of uplink on the Physical Uplink Shared Channel PUSCH that object transmission block is corresponding Number；

The signal of terminal uplink transmission is decoded, to obtain decoded result；

According to this decoded result, generate the Downlink Control Information DCI, the DCI of this object format of object format For indicating terminal to retransmit the need of carrying out up non-self-adapting HARQ；

Trigger output device 703 and send this object format by physical downlink control channel PDCCH to terminal DCI so that terminal resolves the DCI of this object format, with determine whether carry out on object transmission block up non- Adaptive HARQ retransmits.

Wherein, processor 701 triggers output device 703 by physical downlink control channel PDCCH to terminal Send the DCI of this object format, so that terminal resolves the DCI of this object format, to determine in object transmission The detailed description of the invention whether carrying out up non-self-adapting HARQ re-transmission on block can be:

Trigger output device 703 and send this object format by physical downlink control channel PDCCH to terminal DCI, so that terminal resolves the DCI of this object format, to determine that terminal is in target according to a NDI information Whether carry out up non-self-adapting HARQ on transmission block to retransmit.

Trigger output device 703 and send this object format by physical downlink control channel PDCCH to terminal DCI, so that terminal resolves the DCI of this object format, to determine whether terminal is entered according to the 2nd NDI information The up non-self-adapting HARQ of row retransmits and determines according to HARQ process number and carries out up non-self-adapting The object transmission block that HARQ retransmits.

As the optional embodiment of one, processor 701 may call upon the application of storage in memorizer 704 Program, and perform following operation:

When the DCI of this object format indicates terminal to need to carry out up non-self-adapting HARQ re-transmission, trigger Input equipment 702 receives terminal this letter of uplink again on the PUSCH channel that object transmission block is corresponding Number.

As the optional embodiment of one, processor 701 passes through physical down at triggering output device 703 Before controlling the DCI that channel PDCCH sends this object format to terminal, it is also possible to call memorizer 704 The application program of middle storage, and perform following operation:

Utilize listem-before-talk LBT mechanism that the PDCCH channel of the DCI for transmitting this object format is carried out State-detection；

Wherein, processor 701 triggers output device 703 by physical downlink control channel PDCCH to terminal The detailed description of the invention of the DCI sending this object format is:

When the PDCCH channel DCI for transmitting this object format being detected is idle condition, trigger Output device 703 sends the DCI of this object format by this PDCCH channel to terminal.

In the embodiment of the present invention, by implementing the base station shown in Fig. 7, authorizing frequency spectrum auxiliary unlicensed spectrum System in, due to LBT mechanism introducing make PHICH channel in ascending HARQ transmitting procedure not In the case of carrying out downstream feedback, the DCI information of a kind of format can be generated, and believed by PDCCH Road is transmitted, to realize indicating terminal the need of carrying out up non-self-adapting HARQ re-transmission. Additionally, complete, by the DCI information using a kind of format, the process that up non-self-adapting HARQ retransmits, System is made to carry out ascending HARQ re-transmission under less signaling consumption, it is ensured that the reliability of data transmission Reduce signaling consumption simultaneously.

Based on the application scenarios shown in Fig. 1, the embodiment of the invention discloses a kind of terminal.Refer to Fig. 8, figure 8 is the structural representation of a kind of terminal that the embodiment of the present invention provides, for performing what the embodiment of the present invention provided The indicating means that HARQ retransmits.As shown in Figure 8, this terminal may include that

Transmitting element 801, is used on the Physical Uplink Shared Channel PUSCH that object transmission block is corresponding to base Stand upstream signals, so that this signal is decoded by base station, and generate object format according to decoded result Downlink Control Information DCI.

Wherein, the DCI of this object format can serve to indicate that terminal is the need of carrying out up non-self-adapting HARQ retransmits.

Receive unit 802, for receiving base station by being somebody's turn to do that physical downlink control channel PDCCH sends over The DCI of object format.

In the embodiment of the present invention, when transmitting element 801 is after the upstream signals of base station, can be single to receiving Unit 802 sends a triggering command, goes to receive this object format that base station sends with tactile transmission/reception unit 802 DCI.

Whether resolution unit 803, for resolving the DCI of this object format, to determine to enter on object transmission block The up non-self-adapting HARQ of row retransmits.

Wherein, resolution unit 803 specifically may be used for resolving the DCI of this object format, to obtain a NDI Information, and determine on object transmission block, whether carry out up non-self-adapting HARQ according to a NDI information Retransmit.

Correspondingly, see also the structure that Fig. 9, Fig. 9 are the another kind of terminals that the embodiment of the present invention provides to show It is intended to, the indicating means that the HARQ provided for performing the embodiment of the present invention retransmits.Wherein, shown in Fig. 9 Terminal be to optimize further to obtain on the basis of the terminal shown in Fig. 8.With the terminal phase shown in Fig. 8 Ratio, in the terminal shown in Fig. 9, resolution unit 803 may include that

First resolves subelement 8031, for resolving the DCI of this object format, to obtain a NDI information；

First obtains subelement 8032, the NDI included in the DCI obtaining the first history object format Information, the DCI of the first history object format is connect recently by terminal distance current time on object transmission block The DCI received；

First judgment sub-unit 8033, for judging the NDI that the first parsing subelement 8031 parses NDI included in the DCI of the first history object format that information gets with the first acquisition subelement 8032 Information is the most consistent；

First determines subelement 8034, for judging a NDI information when the first judgment sub-unit 8033 Time consistent with the NDI information included in the DCI of the first history object format, determine on object transmission block Need to carry out up non-self-adapting HARQ to retransmit；

Second determines subelement 8035, for judging a NDI information when the first judgment sub-unit 8033 Time inconsistent with the NDI information included in the DCI of the first history object format, determine at object transmission block On do not carry out up non-self-adapting HARQ retransmit.

As the optional embodiment of one, transmitting element 801, it is also possible to for determining subelement first 8034 when determining that needing to carry out up non-self-adapting HARQ on object transmission block retransmits, at object transmission block On corresponding PUSCH to base station this signal of uplink again.

Wherein, resolution unit 803 specifically may be used for resolving the DCI of this object format, to obtain the 2nd NDI Information and HARQ process number, and determine whether to carry out up non-self-adapting HARQ according to the 2nd NDI information Retransmit, and determine the object transmission block carrying out up non-self-adapting HARQ re-transmission according to HARQ process number.

Correspondingly, the structure that Figure 10, Figure 10 are the another kind of terminals that the embodiment of the present invention provides is seen also Schematic diagram, the indicating means that the HARQ provided for performing the embodiment of the present invention retransmits.Wherein, Figure 10 Shown terminal is to optimize further to obtain on the basis of the terminal shown in Fig. 8.With the end shown in Fig. 8 End is compared, and in the terminal shown in Figure 10, resolution unit 803 may include that

Second resolves subelement 8036, for resolving the DCI of this object format, to obtain the 2nd NDI information With HARQ process number；

3rd determines subelement 8037, carries out up non-self-adapting for determining according to HARQ process number The object transmission block that HARQ retransmits；

Second obtains subelement 8038, the NDI included in the DCI obtaining the second history object format Information, the DCI of the second history object format is connect recently by terminal distance current time on object transmission block The DCI received；

Second judgment sub-unit 8039, for judging the 2nd NDI that the second parsing subelement 8036 parses NDI included in the DCI of the second history object format that information gets with the second acquisition subelement 8038 Information is the most consistent；

4th determines subelement 8040, for judging the 2nd NDI information when the second judgment sub-unit 8039 Time consistent with the NDI information included in the DCI of the second history object format, determine on object transmission block Need to carry out up non-self-adapting HARQ to retransmit；

5th determines subelement 8041, for judging the 2nd NDI information when the second judgment sub-unit 8039 Time inconsistent with the NDI information included in the DCI of the second history object format, determine at object transmission block On do not carry out up non-self-adapting HARQ retransmit.

As the optional embodiment of one, transmitting element 801, it is also possible to for determining subelement the 4th 8040 when determining that needing to carry out up non-self-adapting HARQ on object transmission block retransmits, at object transmission block On corresponding PUSCH channel to base station this signal of uplink again.

In the embodiment of the present invention, by implementing the terminal shown in Fig. 8 to Figure 10, assist non-awarding authorizing frequency spectrum In the system of power frequency spectrum, owing to the introducing of LBT mechanism makes PHICH channel be transmitted across at ascending HARQ In the case of journey does not carries out downstream feedback, the base station a kind of new lattice by PDCCH transmission can be received The DCI information of formula, to realize indicating terminal the need of carrying out up non-self-adapting HARQ re-transmission. Additionally, complete, by the DCI information using a kind of format, the process that up non-self-adapting HARQ retransmits, System is made to carry out ascending HARQ re-transmission under less signaling consumption, it is ensured that the reliability of data transmission Reduce signaling consumption simultaneously.

Based on the application scenarios shown in Fig. 1, the embodiment of the invention discloses another terminal.Refer to Figure 11, Figure 11 is the structural representation of another terminal that the embodiment of the present invention provides, and is used for performing the embodiment of the present invention The indicating means that the HARQ provided retransmits.As shown in figure 11, this terminal 1100 may include that at least one Individual processor 1101, such as CPU, at least one input equipment 1102, at least one output device 1103, Memorizer 1104 assembly such as grade.Wherein, these assemblies can be communicated by one or more bus 1105 Connect.It will be understood by those skilled in the art that the structure of the terminal 1100 shown in Figure 11 is not intended that right The restriction of the embodiment of the present invention, it both can be busbar network, it is also possible to be hub-and-spoke configuration, it is also possible to bag Include ratio and illustrate more or less of parts, or combine some parts, or different parts are arranged.Wherein:

In the embodiment of the present invention, input equipment 1102 can include line interface, wave point etc., Ke Yiyong In receiving the signal etc. that base station down sends.Output device 1103 can include line interface, wave point etc., May be used for base station upstream signals etc..

In the embodiment of the present invention, memorizer 1104 can be high-speed RAM memorizer, it is also possible to be non-instability Memorizer (non-volatile memory), for example, at least one disk memory.Memorizer 1104 is optional Can also is that at least one is located remotely from the storage device of aforementioned processor 1101.As shown in figure 11, as one Plant in the memorizer 1104 of computer-readable storage medium and can include operating system, application program and data etc., this Inventive embodiments is not construed as limiting.

In the terminal 1100 shown in Figure 11, what processor 1101 may be used for calling storage in memorizer 1104 should By program to perform following operation:

Trigger output device 1103 on the Physical Uplink Shared Channel PUSCH that object transmission block is corresponding to base Stand upstream signals, so that the signal of terminal 1100 uplink is decoded by base station, and according to decoding Result generates the Downlink Control Information DCI, the DCI of this object format of object format and is used for indicating terminal 1100 Retransmit the need of carrying out up non-self-adapting HARQ；

Trigger input equipment 1102 and receive base station by being somebody's turn to do that physical downlink control channel PDCCH sends over The DCI of object format；

Resolve the DCI of this object format, to determine whether carry out up non-self-adapting on object transmission block HARQ retransmits.

As the optional embodiment of one, retransmit for synchronous HARQ when up non-self-adapting HARQ retransmits Time, the DCI of this object format includes the first new data instruction NDI information, and a NDI information is used for indicating Whether terminal 1100 carries out up non-self-adapting HARQ retransmits；

Whether wherein, processor 1101 resolves the DCI of this object format, to determine to enter on object transmission block The detailed description of the invention that the up non-self-adapting HARQ of row retransmits can be:

Resolve the DCI of this object format, to obtain a NDI information；

According to a NDI information, determine on object transmission block, whether carry out up non-self-adapting HARQ weight Pass.

As the optional embodiment of one, processor 1101, according to a NDI information, determines and passes in target The detailed description of the invention whether carrying out up non-self-adapting HARQ re-transmission on defeated piece can be:

Obtain the NDI information included in the DCI of the first history object format, the first history object format DCI is terminal 1100 DCI that distance current time is recently received on object transmission block；

Judge the NDI information included in the DCI of a NDI information and the first history object format whether one Cause；

When a NDI information is consistent with the NDI information included in the DCI of the first history object format, Determine that needing to carry out up non-self-adapting HARQ on object transmission block retransmits；

NDI information included in a NDI information with the DCI of the first history object format is inconsistent Time, determine that not carrying out up non-self-adapting HARQ on object transmission block retransmits.

As the optional embodiment of one, retransmit for asynchronous HARQ when up non-self-adapting HARQ retransmits Time, the DCI of this object format includes the second new data instruction NDI information and HARQ process number, wherein, 2nd NDI information is used for indicating terminal 1100 whether to carry out up non-self-adapting HARQ and retransmits, HARQ Process number carries out, for instruction, the object transmission block that up non-self-adapting HARQ retransmits；

Resolve the DCI of described object format, to obtain the 2nd NDI information and HARQ process number；

Determine whether that carrying out up non-self-adapting HARQ retransmits according to the 2nd NDI information, and according to HARQ process number determines the object transmission block carrying out up non-self-adapting HARQ re-transmission.

As the optional embodiment of one, on processor 1101 determines whether to carry out according to the 2nd NDI information Row non-self-adapting HARQ retransmits, and determines according to HARQ process number and carry out up non-self-adapting HARQ The detailed description of the invention of the object transmission block retransmitted can be:

Determine according to HARQ process number and carry out the object transmission block that up non-self-adapting HARQ retransmits；

Obtain the NDI information included in the DCI of the second history object format, the second history object format DCI is terminal 1100 DCI that distance current time is recently received on object transmission block；

Judge the NDI information included in the DCI of the 2nd NDI information and the second history object format whether one Cause；

When the 2nd NDI information is consistent with the NDI information included in the DCI of the second history object format, Determine that needing to carry out up non-self-adapting HARQ on object transmission block retransmits；

NDI information included in the 2nd NDI information with the DCI of the second history object format is inconsistent Time, determine that not carrying out up non-self-adapting HARQ on object transmission block retransmits.

As the optional embodiment of one, what processor 1101 may call upon in memorizer 1104 storage should Operate below program, and execution:

When terminal 1100 determines that needing to carry out up non-self-adapting HARQ on object transmission block retransmits, touch Send out output device 1103 on the PUSCH channel that object transmission block is corresponding to base station this letter of uplink again Number.

In the embodiment of the present invention, by implementing the terminal shown in Figure 11, authorizing frequency spectrum auxiliary unlicensed spectrum System in, due to LBT mechanism introducing make PHICH channel in ascending HARQ transmitting procedure not In the case of carrying out downstream feedback, the base station a kind of format by PDCCH transmission can be received DCI information, to realize indicating terminal the need of carrying out up non-self-adapting HARQ re-transmission.This Outward, complete, by the DCI information using a kind of format, the process that up non-self-adapting HARQ retransmits, System is made to carry out ascending HARQ re-transmission under less signaling consumption, it is ensured that the reliability of data transmission Reduce signaling consumption simultaneously.

Module in all embodiments of the invention or submodule, can pass through universal integrated circuit, such as CPU, Or realized by ASIC (Application Specific Integrated Circuit, special IC).

It should be noted that for each embodiment of the method aforesaid, in order to be briefly described, therefore by its all table Stating as a series of combination of actions, but those skilled in the art should know, the present invention is not by described The restriction of sequence of movement because according to the application, certain some step can use other orders or simultaneously Carry out.Secondly, those skilled in the art also should know, embodiment described in this description belongs to excellent Select embodiment, necessary to involved action and module not necessarily the application.

In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, in certain embodiment the most in detail The thin part described, may refer to the associated description of other embodiments.

Step in embodiment of the present invention method can carry out order according to actual needs and adjust, merges and delete.

Unit or subelement in embodiment of the present invention base station and terminal can merge according to actual needs, Divide and delete.

One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, Can be by computer program and complete to instruct relevant hardware, described program can be stored in a calculating In machine read/write memory medium, this program is upon execution, it may include such as the flow process of the embodiment of above-mentioned each method. Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, Or random access memory (Random Access Memory, be called for short RAM) etc. ROM).

Indicating means and relevant device that a kind of HARQ provided the embodiment of the present invention above retransmits are carried out Being discussed in detail, principle and the embodiment of the present invention are set forth by specific case used herein, with The explanation of upper embodiment is only intended to help to understand method and the core concept thereof of the present invention；Simultaneously for this The those skilled in the art in field, according to the thought of the present invention, the most all can Change part, and in sum, this specification content should not be construed as limitation of the present invention.

Claims

1. the indicating means that a hybrid automatic repeat-request HARQ retransmits, it is characterised in that including:

Method the most according to claim 1, it is characterised in that as described up non-self-adapting HARQ When re-transmission retransmits for synchronous HARQ, the DCI of described object format includes the first new data instruction NDI information, A described NDI information is used for indicating described terminal whether to carry out described up non-self-adapting HARQ and retransmits；

Wherein, described base station sends described target lattice by physical downlink control channel PDCCH to described terminal The DCI of formula, so that described terminal resolves the DCI of described object format, to determine at described object transmission block On whether carry out described up non-self-adapting HARQ retransmit, including:

Described base station sends described object format by physical downlink control channel PDCCH to described terminal DCI, so that described terminal resolves the DCI of described object format, to determine according to a described NDI information Whether described terminal carries out described up non-self-adapting HARQ on described object transmission block retransmits.

Method the most according to claim 1, it is characterised in that as described up non-self-adapting HARQ When retransmitting as asynchronous HARQ re-transmission, the DCI of described object format includes the second new data instruction NDI information With HARQ process number, wherein, it is described that described 2nd NDI information is used for indicating described terminal whether to carry out Row non-self-adapting HARQ retransmits, and described HARQ process number carries out described up non-self-adapting for instruction The described object transmission block that HARQ retransmits；

Described base station sends described object format by physical downlink control channel PDCCH to described terminal DCI, so that described terminal resolves the DCI of described object format, to determine according to described 2nd NDI information Whether described terminal carries out described up non-self-adapting HARQ retransmits and true according to described HARQ process number Surely the described object transmission block that described up non-self-adapting HARQ retransmits is carried out.

4. according to the method according to any one of claim 1-3, it is characterised in that described method also includes:

When the DCI of described object format indicates described terminal to need to carry out described up non-self-adapting HARQ weight During biography, it is the most up on the described PUSCH that described object transmission block is corresponding that described base station receives described terminal The described signal of transmission.

5. according to the method according to any one of claim 1-4, it is characterised in that thing is passed through in described base station Reason down control channel PDCCH to described terminal send described object format DCI before, described method Also include:

Described base station utilizes listem-before-talk LBT mechanism to for transmitting described in the DCI of described object format PDCCH carries out state-detection；

Wherein, described base station sends described target lattice by physical downlink control channel PDCCH to described terminal The DCI of formula, including:

When detecting that described PDCCH is idle condition, described PDCCH is passed through to described end in described base station End sends the DCI of described object format.

6. the indicating means that a hybrid automatic repeat-request HARQ retransmits, it is characterised in that including:

Method the most according to claim 6, it is characterised in that as described up non-self-adapting HARQ When re-transmission retransmits for synchronous HARQ, the DCI of described object format includes the first new data instruction NDI information, A described NDI information is used for indicating described terminal whether to carry out described up non-self-adapting HARQ and retransmits；

Wherein, described terminal resolves the DCI of described object format, to determine on described object transmission block is No carry out described up non-self-adapting HARQ retransmit, including:

Described terminal resolves the DCI of described object format, to obtain a described NDI information；

Whether described terminal, according to a described NDI information, determines described in carrying out on described object transmission block Up non-self-adapting HARQ retransmits.

Method the most according to claim 7, it is characterised in that described terminal is according to a described NDI Information, determines that whether carrying out described up non-self-adapting HARQ on described object transmission block retransmits, including:

Described terminal obtains the NDI information included in the DCI of the first history object format, and described first goes through The DCI of history object format is that described terminal distance current time on described object transmission block is recently received DCI；

Included in the DCI of a NDI information described in described terminal judges and described first history object format NDI information the most consistent；

NDI information included in the described NDI information DCI with described first history object format Time consistent, described terminal determines to be needed to carry out described up non-self-adapting HARQ on described object transmission block Retransmit；

NDI information included in the described NDI information DCI with described first history object format Time inconsistent, described terminal determines and does not carry out described up non-self-adapting HARQ on described object transmission block Retransmit.

Method the most according to claim 6, it is characterised in that as described up non-self-adapting HARQ When retransmitting as asynchronous HARQ re-transmission, the DCI of described object format includes the second new data instruction NDI information With HARQ process number, wherein, it is described that described 2nd NDI information is used for indicating described terminal whether to carry out Row non-self-adapting HARQ retransmits, and described HARQ process number carries out described up non-self-adapting for instruction The described object transmission block that HARQ retransmits；

Described terminal resolves the DCI of described object format, to obtain described 2nd NDI information and described HARQ Process number；

Described terminal determines whether to carry out described up non-self-adapting HARQ weight according to described 2nd NDI information Pass, and determine according to described HARQ process number carry out described up non-self-adapting HARQ retransmit described in Object transmission block.

Method the most according to claim 9, it is characterised in that described terminal is according to described 2nd NDI Information determines whether that carrying out described up non-self-adapting HARQ retransmits, and according to described HARQ process number Determine and carry out the described object transmission block that described up non-self-adapting HARQ retransmits, including:

Described terminal determine according to described HARQ process number carry out described up non-self-adapting HARQ retransmit Described object transmission block；

Described terminal obtains the NDI information included in the DCI of the second history object format, and described second goes through The DCI of history object format is that described terminal distance current time on described object transmission block is recently received DCI；

Included in the DCI of the 2nd NDI information described in described terminal judges and described second history object format NDI information the most consistent；

NDI information included in the described 2nd NDI information DCI with described second history object format Time consistent, described terminal determines to be needed to carry out described up non-self-adapting HARQ on described object transmission block Retransmit；

NDI information included in the described 2nd NDI information DCI with described second history object format Time inconsistent, described terminal determines and does not carry out described up non-self-adapting HARQ on described object transmission block Retransmit.

11. according to the method according to any one of claim 6-10, it is characterised in that described method is also wrapped Include:

Need to carry out described up non-self-adapting HARQ weight on described object transmission block when described terminal determines During biography, described terminal on the described PUSCH that described object transmission block is corresponding to the most up biography in described base station Defeated described signal.

12. 1 kinds of base stations, it is characterised in that including:

13. base stations according to claim 12, it is characterised in that as described up non-self-adapting HARQ When re-transmission retransmits for synchronous HARQ, the DCI of described object format includes the first new data instruction NDI information, A described NDI information is used for indicating described terminal whether to carry out described up non-self-adapting HARQ and retransmits；

Described transmitting element is specifically for sending institute by physical downlink control channel PDCCH to described terminal State the DCI of object format, so that described terminal resolves the DCI of described object format, with according to described first NDI information determines whether described terminal carries out described up non-self-adapting HARQ on described object transmission block Retransmit.

14. base stations according to claim 12, it is characterised in that as described up non-self-adapting HARQ When retransmitting as asynchronous HARQ re-transmission, the DCI of described object format includes the second new data instruction NDI information With HARQ process number, wherein, it is described that described 2nd NDI information is used for indicating described terminal whether to carry out Row non-self-adapting HARQ retransmits, and described HARQ process number carries out described up non-self-adapting for instruction The described object transmission block that HARQ retransmits；

Described transmitting element is specifically for sending institute by physical downlink control channel PDCCH to described terminal State the DCI of object format, so that described terminal resolves the DCI of described object format, with according to described second NDI information determines whether described terminal carries out described up non-self-adapting HARQ and retransmit and according to described HARQ process number determines the described object transmission block carrying out described up non-self-adapting HARQ re-transmission.

15. according to the base station according to any one of claim 12-14, it is characterised in that

Described reception unit, is additionally operable to when the DCI instruction described terminal needs of described object format carry out described Up non-self-adapting HARQ retransmit time, receive described terminal corresponding at described object transmission block described in The described signal of uplink again on PUSCH.

16. according to the base station according to any one of claim 12-15, it is characterised in that described base station is also wrapped Include:

Detector unit, for passing through physical downlink control channel PDCCH to described terminal at described transmitting element Before sending the DCI of described object format, utilize listem-before-talk LBT mechanism to for transmitting described target lattice The described PDCCH of the DCI of formula carries out state-detection；

Described transmitting element sends described target lattice by physical downlink control channel PDCCH to described terminal The mode of the DCI of formula particularly as follows:

Described transmitting element is when described detector unit detects that described PDCCH is idle condition, by described PDCCH sends the DCI of described object format to described terminal.

17. 1 kinds of terminals, it is characterised in that including:

18. terminals according to claim 17, it is characterised in that as described up non-self-adapting HARQ When re-transmission retransmits for synchronous HARQ, the DCI of described object format includes the first new data instruction NDI information, A described NDI information is used for indicating described terminal whether to carry out described up non-self-adapting HARQ and retransmits；

Described resolution unit is specifically for resolving the DCI of described object format, to obtain a described NDI letter Breath, and determine according to a described NDI information whether carry out on described object transmission block described up non-self Adapt to HARQ retransmit.

19. terminals according to claim 18, it is characterised in that described resolution unit includes:

First resolves subelement, for resolving the DCI of described object format, to obtain a described NDI letter Breath；

First obtains subelement, the NDI information included in the DCI obtaining the first history object format, The DCI of described first history object format is that distance current time is on described object transmission block for described terminal Nearly received DCI；

First judgment sub-unit, for judging a described NDI information and described first history object format NDI information included in DCI is the most consistent；

First determines subelement, for when described first judgment sub-unit judge a described NDI information with When NDI information included in the DCI of described first history object format is consistent, determines and pass in described target Need to carry out described up non-self-adapting HARQ on defeated piece to retransmit；

Second determines subelement, for when described first judgment sub-unit judge a described NDI information with When NDI information included in the DCI of described first history object format is inconsistent, determine in described target Do not carry out described up non-self-adapting HARQ on transmission block to retransmit.

20. terminals according to claim 17, it is characterised in that as described up non-self-adapting HARQ When retransmitting as asynchronous HARQ re-transmission, the DCI of described object format includes the second new data instruction NDI information With HARQ process number, wherein, it is described that described 2nd NDI information is used for indicating described terminal whether to carry out Row non-self-adapting HARQ retransmits, and described HARQ process number carries out described up non-self-adapting for instruction The described object transmission block that HARQ retransmits；

Described resolution unit is specifically for resolving the DCI of described object format, to obtain described 2nd NDI letter Breath and described HARQ process number, and determine whether to carry out described up non-self according to described 2nd NDI information Adapt to HARQ retransmit, and determine according to described HARQ process number and carry out described up non-self-adapting The described object transmission block that HARQ retransmits.

21. terminals according to claim 20, it is characterised in that described resolution unit includes:

Second resolves subelement, for resolving the DCI of described object format, to obtain described 2nd NDI letter Breath and described HARQ process number；

3rd determines subelement, carries out described up non-self-adapting for determining according to described HARQ process number The described object transmission block that HARQ retransmits；

Second obtains subelement, the NDI information included in the DCI obtaining the second history object format, The DCI of described second history object format is that distance current time is on described object transmission block for described terminal Nearly received DCI；

Second judgment sub-unit, for judging described 2nd NDI information and described second history object format NDI information included in DCI is the most consistent；

4th determines subelement, for when described second judgment sub-unit judge described 2nd NDI information with When NDI information included in the DCI of described second history object format is consistent, determines and pass in described target Need to carry out described up non-self-adapting HARQ on defeated piece to retransmit；

5th determines subelement, for when described second judgment sub-unit judge described 2nd NDI information with When NDI information included in the DCI of described second history object format is inconsistent, determine in described target Do not carry out described up non-self-adapting HARQ on transmission block to retransmit.

22. according to the terminal according to any one of claim 17-21, it is characterised in that

Described transmitting element, be additionally operable to when described terminal determine need to carry out on described object transmission block described When up non-self-adapting HARQ retransmits, to described on the described PUSCH that described object transmission block is corresponding Signal described in the uplink again of base station.