CN106130701B

CN106130701B - HARQ process transmission method and device, base station and terminal in unauthorized frequency range

Info

Publication number: CN106130701B
Application number: CN201610555039.9A
Authority: CN
Inventors: 刘是枭; 胡恒; 姜炜; 李明菊; 钟焰涛; 刘方圆
Original assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Current assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Priority date: 2016-07-14
Filing date: 2016-07-14
Publication date: 2019-08-02
Anticipated expiration: 2036-07-14
Also published as: CN106130701A

Abstract

The present invention provides the HARQ process transmission method and devices in a kind of unauthorized frequency range, base station and terminal, wherein, HARQ process transmission method includes: statistical data transmitting terminal duration experienced before the number for making each HARQ process miss re-transmission in unauthorized frequency range because executing Channel Detection mechanism, and/or each HARQ process of statistics receive ACK message to data sending terminal from foundation；According to each HARQ process miss re-transmission number and/or each HARQ process from establish receive ACK message to data sending terminal before duration experienced, determine transmission priority of each HARQ process when being retransmitted；When the channel for detecting unauthorized frequency range every time can occupy, according to transmission priority of each HARQ process when being retransmitted to its allocation of transmission resources.The present invention can lead to the problem of cannot sending data due to always occupying less than channel to avoid HARQ process, reduce the average delay of HARQ process, be conducive to the handling capacity of lifting system.

Description

HARQ process transmission method and device, base station and terminal in unauthorized frequency range

Technical field

The present invention relates to fields of communication technology, in particular to the process transmission side HARQ in a kind of unauthorized frequency range HARQ process transmission device, a kind of base station and a kind of terminal in method, a kind of unauthorized frequency range.

Background technique

Held with the sharp increase of message volume, 3GPP authorization frequency spectrum seems less and less adequate with providing higher network Amount.In order to further increase the utilization of frequency spectrum resource, 3GPP proposes LAA, and (LTE Assisted Access, LTE auxiliary is connect Enter) concept, for by LTE (Long Term Evolution, long term evolution) authorization frequency spectrum help come using unauthorized Frequency spectrum.In order to make different system harmonious coexistence, the 3GPP such as the Wi-Fi in LTE system and unauthorized frequency range have also been proposed LBT (Listen Before Talk, listem-before-talk) mechanism, guarantees in a manner of through the competitive channel right to use in unauthorized frequency range Not homologous ray use frequency spectrum resource fairness.Wherein, LTE system can be TDD in the working method of unlicensed spectrum (Time Division Duplexing, time division duplex) mode, supplement downlink (SDL, Supplemental Downlink) mould The mode of formula either dynamic uplink and downlink.

Wherein, the physical layer frame structure of TD-LTE is 10ms, contains the field of two 5ms, ascending-descending subframes configuration It is as shown in table 1:

Table 1

As shown in table 1, for the TDD structure of 5ms downstream-to-upstream change-over period, 1 frame includes 8 normal sub-frames and 2 A special subframe, and 8 normal sub-frames be on earth can be with reference table 1 for uplink or downlink.And 10ms is gone downwards to The TDD structure of uplink change-over period, 1 frame includes 9 normal sub-frames and a special subframe, and 9 normal sub-frames are on earth It is for uplink or downlink again can include 14 symbol (symbol) with reference table 1, each normal sub-frames.

HARQ (Hybrid Automatic Repeat Request, hybrid automatic repeat-request) mechanism is in LTE system Guarantee the important component of transmission reliability, and the HARQ process timing in different sub-frame configurations ensure that running time-frequency resource is high Effect utilizes.Traditional HARQ timing downlink is using asynchronous system, i.e., at the time of receiving end does not know that transmission occurs in advance, because This needs the HARQ process number of signaling instruction current transmission in asynchronous HARQ.Asynchronous HARQ does not have to consider what head was passed and retransmitted Sequence problem, therefore defined only in agreement from transmission downlink data to uplink through PUCCH (Physical Uplink Control Channel, Physical Uplink Control Channel) feeding back ACK/NACK sequential relationship, specific as shown in table 2:

Table 2

As shown in table 2, the digital k in table is represented: if downlink data transmits in subframe n, corresponding ACK/ Nack message will be fed back in the subframe that subframe numbers are n+k；If n+k > 9, illustrating should be after current radio frames Feeding back ACK/nack message in the subframe that first radio frames subframe numbers is (n+k) %10 (% is complementation symbol)；Work as n+k > 19 When, then it is feeding back ACK/nack message in the subframe of (n+k) %10 in second radio frames subframe numbers after current radio frames.

What traditional HARQ timing uplink was taken is synchronous HARQ, the transmission of HARQ process and retransmit occur to have it is solid Fixed sequential relationship does not need additional signaling due to the generation moment of the previously known transmission in receiving end to indicate HARQ Process number.Agreement defines two sequential relationships to uplink synchronous HARQ, and one is from base station in PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) on hair upstream dispatching instructions to the corresponding uplink of terminal transmission The sequential relationship of data, the other is from terminal transmission upstream data to the sequential relationship of base station feedback ACK/NACK.Wherein, table 3 give terminal send upstream data to base station feedback ACK/NACK sequential relationship:

Table 3

As shown in table 3, the digital k in table is represented: if upstream data in subframe numbers to transmit in the subframe of n, ACK/NACK feedback in PHICH (Physical Hybird ARQ Indicator Channel, Physical HARQ Indicator Channel) Information is transmitted in the subframe that subframe numbers are n+k.If there is the case where n+k > 9 or n+k > 19, according to downlink HARQ timing The processing mode of same condition is handled.

Since LTE access system can use channel resource at any time in authorized spectrum band, so when HARQ process Sequence shows good continuity.But since unauthorized frequency range introduces LBT mechanism, prevent LTE system is from all the time All busy channel resources may result in HARQ process if HARQ mechanism still uses the timing planning in authorized spectrum band The transmission data moment, which occupies, as defined in timing cannot transmit data less than channel resource.If a certain HARQ process always goes out Now such situation, it will increase the average delay of HARQ process, reduce user experience.Specific problem is as follows:

As shown in Figure 1, base station is in 0 work song frame busy channel resource of radio frames 1 by taking the configuration #1 of tdd mode as an example It is successfully transmitted the data of downlink HARQ process 1.And 4,5 work song frames of radio frames 1 and 4 work song frames of radio frames 2 are not due to robbing Channel resource is accounted for, leads to that the downlink data in process 3,4,2 cannot be sent.

For ascending HARQ course, upstream data cannot be sent because being unable to busy channel at the time of equally existing regulation Situation.As shown in Fig. 2, equally by TDD configure #1 for, terminal radio frames 12 work song frames send upstream data, according to when Sequence rule, base station should be in 6 work song frame feeding back ACKs/nack message of radio frames 1, and the sub-frame of uplink, which is successfully robbed, this moment accounts for letter Road, upstream data are successfully transmitted.But 7 work song frames of radio frames 1 and 3 work song frames of radio frames 2 are occupied due to not having to channel Resource, so upstream data cannot be sent.

If above situation always occurs in some HARQ process, the time delay of the HARQ process will be very big, respectively A HARQ process resource distributional equity cannot be guaranteed, it is also possible to the case where loss of data occur, seriously affect use Family experience and throughput performance.

Therefore, how to avoid HARQ process from always occupying less than channel resource and data cannot be sent, reduce HARQ The average delay of process guarantees that HARQ process becomes technical problem urgently to be resolved using the fairness of resource.

Summary of the invention

The present invention is based at least one above-mentioned technical problem, propose a kind of new HARQ in unauthorized frequency range into Journey transmission plan can lead to the problem of cannot sending data due to always occupying less than channel to avoid HARQ process, reduce The average delay of HARQ process ensure that the fairness for utilizing resource between HARQ process, be conducive to handling up for lifting system Amount.

In view of this, according to the first aspect of the invention, the process transmission side HARQ in a kind of unauthorized frequency range is proposed Method, comprising: statistical data transmitting terminal make in unauthorized frequency range because executing Channel Detection mechanism each HARQ process miss weight The number of biography, and/or each HARQ process of statistics from establish receive ACK message to data sending terminal before it is experienced when It is long；The number for missing re-transmission according to each HARQ process and/or each HARQ process are from establishing to data sending terminal Duration experienced before receiving ACK message determines transmission priority of each HARQ process when being retransmitted；? When detecting the channel of unauthorized frequency range every time can occupy, according to transmission preferences of each HARQ process when being retransmitted Grade is to its allocation of transmission resources.

In the technical scheme, made in unauthorized frequency range because executing Channel Detection mechanism by statistical data transmitting terminal Each HARQ process misses the number of re-transmission, and/or each HARQ process of statistics receives ACK to data sending terminal from foundation and disappears Duration experienced before breath, to determine transmission priority of each HARQ process when being retransmitted, and according to determining biography Defeated priority is come to its allocation of transmission resources so that HARQ process biggish for the number for missing re-transmission, and/or from establish to Data sending terminal before receiving ACK message the longer HARQ process of duration experienced can by preferential allocation of transmission resources, And then can be avoided HARQ process and lead to the problem of cannot sending data due to always occupying less than channel, reduce HARQ into The average delay of journey ensure that the fairness for utilizing resource between HARQ process, be conducive to the handling capacity of lifting system.

Wherein, data sending terminal is either base station, is also possible to terminal.When data sending terminal is base station, HARQ into Journey is downlink HARQ process；When data sending terminal is terminal, HARQ process is ascending HARQ course.

In the above-mentioned technical solutions, it is preferable that transmission priority and institute of each HARQ process when being retransmitted State that each HARQ process misses the number of re-transmission and/or each HARQ process receives ACK from establishing to data sending terminal Duration positive correlation experienced before message.

In the technical scheme, by making transmission priority of the HARQ process when being retransmitted and HARQ process miss weight The number positive correlation of biography, the HARQ process for enabling the number for missing re-transmission more obtain higher transmission preferences Grade, and then can be avoided HARQ process and lead to the problem of cannot sending data due to always occupying less than channel, it reduces The average delay of HARQ process；Similarly, by make transmission priority of the HARQ process when being retransmitted and HARQ process from Duration positive correlation experienced before foundation receives ACK message to data sending terminal, so that the biggish HARQ of time delay Process can obtain higher transmission priority, and then can reduce the average delay of HARQ process.

In any of the above-described technical solution, it is preferable that in number and the institute for missing re-transmission according to each HARQ process Duration experienced before each HARQ process receives ACK message to data sending terminal from foundation is stated, is determined described each In the case where transmission priority of the HARQ process when being retransmitted, biography of each HARQ process when being retransmitted is determined The step of defeated priority, specifically includes: determining that the HARQ process exists according to the number that each HARQ process misses re-transmission Transmission priority when re-transmission；When the number that multiple HARQ processes miss re-transmission is identical, according to the multiple HARQ process from It establishes duration experienced before receiving ACK message to data sending terminal and determines biography of the multiple HARQ process when retransmitting Defeated priority.

In any of the above-described technical solution, it is preferable that the HARQ process transmission method in the unauthorized frequency range is also wrapped It includes: if reach pre-determined number and/or any HARQ process that any HARQ process misses the number of re-transmission are sent out from establishing to data Sending end before receiving ACK message duration experienced reach the first scheduled duration, then give up any HARQ process.

In any of the above-described technical solution, it is preferable that further include: if being assigned with transmission money to each HARQ process After source, there are also available transfer resources, it is determined whether other HARQ processes of re-transmission in need；Retransmit if necessary its Its HARQ process, it is determined that the transmission priority of other HARQ processes, and according to the priority of other HARQ processes, To its allocation of transmission resources.

In the technical scheme, after to above-mentioned each HARQ process allocation of transmission resources, if there are also available biographies Defeated resource then may determine whether other HARQ processes of re-transmission in need, in the other HARQ processes for determining re-transmission in need When, according to the priority of other HARQ processes to its allocation of transmission resources, make it possible to guarantee that transfer resource obtains sufficient benefit With improving the utilization rate of resource.Wherein, however, it is determined that remaining biography then can be used in the other HARQ processes for not needing to retransmit Defeated resource establishes new HARQ process.

In any of the above-described technical solution, it is preferable that in the case where the HARQ process is downlink HARQ process, according to The step of transmission priority of each HARQ process when being retransmitted is to its allocation of transmission resources, specifically includes: every When the secondary down channel for detecting unauthorized frequency range can occupy, by the transfer resource of the second scheduled duration since current subframe Distribute to predetermined quantity HARQ process, wherein if since the current subframe to before first non-downlink subframe when It is long to be greater than or equal to predetermined value T, then using the predetermined value T as second scheduled duration；If since the current subframe Duration before to first non-downlink subframe is less than the predetermined value T, then by the current subframe to described first it is non-under Duration before row subframe is as second scheduled duration, wherein predetermined value T is channel maximum occupation time.

In the technical scheme, since the detection of down channel is carried out in downlink subframe, if detecting non-award The down channel of power frequency range be when can occupy, then can will be since the biography of the second scheduled duration current subframe (i.e. downlink subframe) Defeated resource allocation gives predetermined quantity HARQ process.Wherein, when the determination of the second scheduled duration can be occupied according to channel maximum It grows with continuous downlink subframe number and is determined, if the duration of continuous downlink subframe is not up to channel maximum occupancy It is long, then using the duration of continuous downlink subframe as the second scheduled duration, if the duration of continuous downlink subframe is greater than channel most It is big to occupy duration, then using channel maximum occupation time as the second scheduled duration.

In any of the above-described technical solution, it is preferable that in the case where the HARQ process is ascending HARQ course, according to The step of transmission priority of each HARQ process when being retransmitted is to its allocation of transmission resources, specifically includes: every When the secondary up channel for detecting unauthorized frequency range can occupy, the corresponding transfer resource of first sub-frame of uplink later is distributed To the HARQ process of highest priority, and continue to test before second sub-frame of uplink later the letter of the unauthorized frequency range Road state；It, will be since first sub-frame of uplink later or when the channel for detecting unauthorized frequency range every time can occupy The corresponding transfer resource of predetermined quantity sub-frame of uplink distributes to predetermined quantity HARQ process.

In the technical scheme, since the detection of up channel is carried out before sub-frame of uplink, if inspection every time The up channel for measuring unauthorized frequency range can occupy, then can only distribute the corresponding transfer resource of a sub-frame of uplink thereafter To the HARQ process of highest priority, i.e., detection channel status is required to before occupying sub-frame of uplink every time；Certainly, it is examining every time It, can also will the corresponding transfer resource of predetermined quantity sub-frame of uplink thereafter when measuring the up channel of unauthorized frequency range can occupy Distribute to predetermined quantity HARQ process.Wherein, the actual number of the predetermined quantity is determined there are two types of mode: one is detections The number of continuous sub-frame of uplink after to channel idle detects that the continuous sub-frame of uplink after channel idle is all used The transmission of HARQ is carried out, for example detects after channel idle there are 3 sub-frame of uplink, then is all used to this 3 sub-frame of uplink Transmit HARQ process；Another kind is the part sub-frame of uplink in the continuous sub-frame of uplink after detecting channel idle, such as Detect after channel idle there are 3 sub-frame of uplink, if preceding 2 sub-frame of uplink are all not allocated to other users, and on the 3rd Row subframe is allocated to other users, then only takes up preceding 2 sub-frame of uplink to carry out the transmission of HARQ process, and complete occupying Later, the detection of channel is re-started.

According to the second aspect of the invention, it is also proposed that the HARQ process transmission device in a kind of unauthorized frequency range, comprising: Statistic unit makes each HARQ process wrong for statistical data transmitting terminal because executing Channel Detection mechanism in unauthorized frequency range The number retransmitted is crossed, and/or counts experienced before each HARQ process receives ACK message to data sending terminal from foundation Duration；Determination unit, for missed according to each HARQ process re-transmission number and/or each HARQ process from Duration experienced before foundation receives ACK message to data sending terminal, determines that each HARQ process is being retransmitted When transmission priority；Allocation unit, when for detecting that the channel of unauthorized frequency range can occupy every time in data sending terminal, root According to transmission priority of each HARQ process when being retransmitted to its allocation of transmission resources.

In any of the above-described technical solution, it is preferable that in number and the institute for missing re-transmission according to each HARQ process Duration experienced before each HARQ process receives ACK message to data sending terminal from foundation is stated, is determined described each In the case where transmission priority of the HARQ process when being retransmitted, the determination unit is specifically used for: according to described each The number that HARQ process misses re-transmission determines transmission priority of the HARQ process when retransmitting；It is missed in multiple HARQ processes When the number of re-transmission is identical, passed through before receiving ACK message to data sending terminal from foundation according to the multiple HARQ process The duration gone through determines transmission priority of the multiple HARQ process when retransmitting.

In any of the above-described technical solution, it is preferable that the HARQ process transmission device in the unauthorized frequency range also wraps Include: processing unit reaches pre-determined number for counting on any HARQ process in the statistic unit and missing the number of re-transmission, And/or any HARQ process from establish receive ACK message to data sending terminal before duration experienced to reach first predetermined When duration, give up any HARQ process.

In any of the above-described technical solution, it is preferable that the determination unit is also used to: if in the allocation unit to described Each HARQ process is assigned with after transfer resource, there are also available transfer resource, it is determined whether re-transmission in need it is other HARQ process；The other HARQ processes retransmitted if necessary, it is determined that the transmission priority of other HARQ processes, and according to The priority of other HARQ processes, to its allocation of transmission resources.

In any of the above-described technical solution, it is preferable that described in the case where the HARQ process is downlink HARQ process Allocation unit is specifically used for:, will be from when the data sending terminal detects that the down channel of unauthorized frequency range can occupy every time The transfer resource for the second scheduled duration that current subframe starts distributes to predetermined quantity HARQ process, wherein if working as from described Preceding subframe starts to be greater than or equal to predetermined value T to the duration before first non-downlink subframe, then using the predetermined value T as institute State the second scheduled duration；If being less than the predetermined value to the duration before first non-downlink subframe since the current subframe T, then using the duration before the current subframe to first non-downlink subframe as second scheduled duration, wherein Predetermined value T is channel maximum occupation time.

In any of the above-described technical solution, it is preferable that described in the case where the HARQ process is ascending HARQ course Allocation unit is specifically used for: when the data sending terminal detects that the up channel of unauthorized frequency range can occupy every time, by it The corresponding transfer resource of first sub-frame of uplink afterwards distributes to the HARQ process of highest priority, and on second later The channel status of the unauthorized frequency range is continued to test before row subframe；Or it is detected every time in the data sending terminal unauthorized It is when the up channel of frequency range can occupy, the predetermined quantity sub-frame of uplink since first sub-frame of uplink later is corresponding Transfer resource distributes to predetermined quantity HARQ process.

By above technical scheme, due to always occupying less than channel can lead to that number cannot be sent to avoid HARQ process According to the problem of, reduce the average delay of HARQ process, ensure that between HARQ process utilize resource fairness, be conducive to mention The handling capacity of the system of liter.

Detailed description of the invention

Fig. 1 is shown causes downlink HARQ process that cannot send in the timing planning that unauthorized frequency range is continued to use in authorized spectrum band Schematic diagram；

Fig. 2 shows continue to use the timing planning in authorized spectrum band in unauthorized frequency range to cause ascending HARQ course that cannot send Schematic diagram；

Fig. 3 shows showing for the HARQ process transmission method in unauthorized frequency range according to first embodiment of the invention Meaning flow chart；

Fig. 4 shows showing for the HARQ process transmission device in unauthorized frequency range according to first embodiment of the invention Meaning block diagram；

Fig. 5 shows the schematic block diagram of the base station of embodiment according to the present invention；

Fig. 6 shows showing for the HARQ process transmission device in the unauthorized frequency range of second embodiment according to the present invention Meaning block diagram；

Fig. 7 shows the schematic block diagram of the terminal of embodiment according to the present invention；

Fig. 8 shows the schematic flow diagram of the HARQ process transmission method of second embodiment according to the present invention；

The downlink HARQ process that Fig. 9 shows embodiment according to the present invention continuously occupies the signal of multiple downlink subframes Figure；

Figure 10 A shows the frame structure schematic diagram of sub-frame of uplink individualism；

Figure 10 B shows the frame structure schematic diagram of sub-frame of uplink continued presence.

Specific embodiment

To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application Feature in example and embodiment can be combined with each other.

In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below Specific embodiment limitation.

Fig. 3 shows showing for the HARQ process transmission method in unauthorized frequency range according to first embodiment of the invention Meaning flow chart.

As shown in figure 3, the HARQ process transmission method in unauthorized frequency range according to first embodiment of the invention, packet It includes:

Step S30, statistical data transmitting terminal make in unauthorized frequency range because executing Channel Detection mechanism each HARQ into Journey misses the number of re-transmission, and/or counts before each HARQ process receives ACK message to data sending terminal from foundation and passed through The duration gone through.

Step S32, the number for missing re-transmission according to each HARQ process and/or each HARQ process are from building Duration experienced before receiving ACK message to data sending terminal is found, determines each HARQ process when being retransmitted Transmission priority.

Wherein, transmission priority of each HARQ process when being retransmitted and each HARQ process miss re-transmission Number and/or each HARQ process grow up to just when experienced before receiving ACK message to data sending terminal from foundation Correlativity.

Specifically, by making transmission priority of the HARQ process when being retransmitted and HARQ process miss the number of re-transmission Positive correlation, the HARQ process for enabling the number for missing re-transmission more obtain higher transmission priority, Jin Erneng It enough avoids the problem that HARQ process due to always occupying less than channel leads to that data cannot be sent, reduces the flat of HARQ process Equal time delay；Similarly, by sending out transmission priority of the HARQ process when being retransmitted and HARQ process from establishing to data Sending end duration positive correlation experienced before receiving ACK message enables the biggish HARQ process of time delay to obtain Higher transmission priority, and then the average delay of HARQ process can be reduced.

Step S34, when the channel for detecting unauthorized frequency range every time can occupy, according to each HARQ process into Transmission priority when row retransmits is to its allocation of transmission resources.

Wherein, data sending terminal described in above scheme is either base station, is also possible to terminal.Work as data sending terminal When being base station, HARQ process is downlink HARQ process；When data sending terminal is terminal, HARQ process is ascending HARQ course. Below for ascending HARQ course and downlink HARQ process, illustrate specific resource allocation process respectively:

1, for downlink HARQ process.

When HARQ process is downlink HARQ process, weight is being carried out according to each HARQ process in above-mentioned steps S34 The step of transmission priority when biography is to its allocation of transmission resources, specifically includes: in the downlink for detecting unauthorized frequency range every time When channel can occupy, by the transfer resource of the second scheduled duration since current subframe distribute to predetermined quantity HARQ into Journey, wherein if being greater than or equal to predetermined value T to the duration before first non-downlink subframe since the current subframe, Using the predetermined value T as second scheduled duration；If to before first non-downlink subframe since the current subframe Duration be less than the predetermined value T, then using the duration before the current subframe to first non-downlink subframe as institute State the second scheduled duration, wherein predetermined value T is channel maximum occupation time.

2, for ascending HARQ course.

When HARQ process is ascending HARQ course, weight is being carried out according to each HARQ process in above-mentioned steps S34 The step of transmission priority when biography is to its allocation of transmission resources, specifically includes: in the uplink for detecting unauthorized frequency range every time When channel can occupy, the corresponding transfer resource of first sub-frame of uplink later is distributed to the HARQ process of highest priority, And the channel status of the unauthorized frequency range is continued to test before second sub-frame of uplink later；Or it is non-detecting every time It is when the channel of authorized spectrum band can occupy, the predetermined quantity sub-frame of uplink since first sub-frame of uplink later is corresponding Transfer resource distributes to predetermined quantity HARQ process.

Fig. 4 shows showing for the HARQ process transmission device in unauthorized frequency range according to first embodiment of the invention Meaning block diagram.

As shown in figure 4, the HARQ process transmission device in unauthorized frequency range according to first embodiment of the invention 400, comprising: statistic unit 402, determination unit 404 and allocation unit 406.

Wherein, statistic unit 402 for accounting base-station make in unauthorized frequency range because executing Channel Detection mechanism it is each Downlink HARQ process misses the number of re-transmission, and/or each downlink HARQ process of statistics receives ACK message from establishing to base station Duration experienced before；Determination unit 404 is used to miss the number of re-transmission according to each downlink HARQ process, and/or Each downlink HARQ process from establish receive ACK message to base station before duration experienced, determine it is described it is each under Transmission priority of the row HARQ process when being retransmitted；Allocation unit 406 is used to detect unauthorized frequency range every time in base station Channel when can occupy, distribute transmission money to it according to transmission priority of each downlink HARQ process when being retransmitted Source.

In the technical scheme, by accounting base-station in unauthorized frequency range because execute Channel Detection mechanism make it is each under Row HARQ process misses the number of re-transmission, and/or each downlink HARQ process of statistics received from establishing to base station ACK message it Preceding duration experienced, to determine transmission priority of each downlink HARQ process when being retransmitted, and according to determining biography Defeated priority is come to its allocation of transmission resources, so that downlink HARQ process biggish for the number for missing re-transmission, and/or from building Founding the longer downlink HARQ process of duration experienced before receiving ACK message to base station can be by preferential distribution transmission money Source, and then can be avoided downlink HARQ process and lead to the problem of cannot sending data due to always occupying less than channel, reduce The average delay of downlink HARQ process ensure that the fairness that resource is utilized between downlink HARQ process, be conducive to promote system The handling capacity of system.

In the above-mentioned technical solutions, it is preferable that transmission priority of each downlink HARQ process when being retransmitted The number of re-transmission is missed with each downlink HARQ process and/or each downlink HARQ process connects from establishing to base station Duration positive correlation experienced before receiving ACK message.

In the technical scheme, by make transmission priority of the downlink HARQ process when being retransmitted and downlink HARQ into Journey misses the number positive correlation of re-transmission, and the downlink HARQ process for enabling the number for missing re-transmission more obtains higher Transmission priority, and then can be avoided downlink HARQ process and due to always occupying less than channel lead to that data cannot be sent Problem reduces the average delay of downlink HARQ process；Similarly, by making transmission of the downlink HARQ process when being retransmitted Duration positive correlation experienced before priority and downlink HARQ process receive ACK message to base station from foundation, makes Higher transmission priority can be obtained by obtaining the biggish downlink HARQ process of time delay, and then can reduce the flat of downlink HARQ process Equal time delay.

In any of the above-described technical solution, it is preferable that in the number for missing re-transmission according to each downlink HARQ process Duration experienced before receiving ACK message to base station from foundation with each downlink HARQ process determines described each In the case where transmission priority of the downlink HARQ process when being retransmitted, the determination unit 404 is specifically used for: according to described The number that each downlink HARQ process misses re-transmission determines transmission priority of the downlink HARQ process when retransmitting；Multiple Downlink HARQ process miss re-transmission number it is identical when, received according to the multiple downlink HARQ process from establishing to base station Duration experienced determines transmission priority of the multiple downlink HARQ process when retransmitting before ACK message.

In any of the above-described technical solution, it is preferable that the downlink HARQ process transmission device in the unauthorized frequency range 400, further includes: processing unit 408 misses re-transmission for counting on any downlink HARQ process in the statistic unit 402 Reaching for number is experienced before pre-determined number and/or any downlink HARQ process receive ACK message to base station from foundation When duration reaches the first scheduled duration, give up any downlink HARQ process.

In any of the above-described technical solution, it is preferable that the determination unit 404 is also used to: if in the allocation unit 406 After being assigned with transfer resource to each downlink HARQ process, there are also available transfer resources, it is determined whether in need The other downlink HARQ processes retransmitted；The other downlink HARQ processes retransmitted if necessary, it is determined that other downlink HARQ The transmission priority of process, and according to the priority of other downlink HARQ processes, to its allocation of transmission resources.

In the technical scheme, after to above-mentioned each downlink HARQ process allocation of transmission resources, if there are also available Transfer resource, then may determine whether other downlink HARQ processes of re-transmission in need, determining the other of re-transmission in need When downlink HARQ process, according to the priority of other downlink HARQ processes to its allocation of transmission resources, make it possible to guarantee to transmit Resource is fully utilized, and improves the utilization rate of resource.Wherein, however, it is determined that the other downlink HARQ for not needing to retransmit into Remaining transfer resource can be used then to establish new HARQ process in journey.

In any of the above-described technical solution, it is preferable that the allocation unit 406 is specifically used for: being examined every time in the base station When measuring the down channel of unauthorized frequency range can occupy, the transfer resource of the second scheduled duration since current subframe is distributed Give predetermined quantity downlink HARQ process, wherein if since the current subframe to before first non-downlink subframe when It is long to be greater than or equal to predetermined value T, then using the predetermined value T as second scheduled duration；If since the current subframe Duration before to first non-downlink subframe is less than the predetermined value T, then by the current subframe to described first it is non-under Duration before row subframe is as second scheduled duration, wherein predetermined value T is channel maximum occupation time.

In the technical scheme, since the detection of down channel is carried out in downlink subframe, if detecting non-award The down channel of power frequency range be when can occupy, then can will be since the biography of the second scheduled duration current subframe (i.e. downlink subframe) Defeated resource allocation gives predetermined quantity downlink HARQ process.Wherein, the determination of the second scheduled duration can be accounted for according to channel maximum It is determined with duration and continuous downlink subframe number, if the duration of continuous downlink subframe is not up to channel maximum occupancy Duration, then using the duration of continuous downlink subframe as the second scheduled duration, if the duration of continuous downlink subframe is greater than channel Maximum occupation time, then using channel maximum occupation time as the second scheduled duration.

Fig. 5 shows the schematic block diagram of the base station of embodiment according to the present invention.

As shown in figure 5, the base station 500 of embodiment according to the present invention, comprising: in unauthorized frequency range as shown in Figure 4 HARQ process transmission device 400.

Fig. 6 shows showing for the HARQ process transmission device in the unauthorized frequency range of second embodiment according to the present invention Meaning block diagram.

As shown in fig. 6, the HARQ process transmission device in the unauthorized frequency range of second embodiment according to the present invention 600, comprising: statistic unit 602, determination unit 604 and allocation unit 606.

Wherein, statistic unit 602 for count terminal make in unauthorized frequency range because executing Channel Detection mechanism it is each Ascending HARQ course misses the number of re-transmission, and/or each ascending HARQ course of statistics receives ACK message from establishing to terminal Duration experienced before；Determination unit 604 is used to miss the number of re-transmission according to each ascending HARQ course, and/or Each ascending HARQ course from establish receive ACK message to terminal before duration experienced, determine it is described it is each on Transmission priority of the row HARQ process when being retransmitted；Allocation unit 606 is used to detect unauthorized frequency range every time in terminal Channel when can occupy, distribute transmission money to it according to transmission priority of each ascending HARQ course when being retransmitted Source.

In the technical scheme, made on each in unauthorized frequency range because executing Channel Detection mechanism by statistics terminal Row HARQ process misses the number of re-transmission, and/or each ascending HARQ course of statistics received from establishing to terminal ACK message it Preceding duration experienced, to determine transmission priority of each ascending HARQ course when being retransmitted, and according to determining biography Defeated priority is come to its allocation of transmission resources, so that ascending HARQ course biggish for the number for missing re-transmission, and/or from building Founding the longer ascending HARQ course of duration experienced before receiving ACK message to terminal can be by preferential distribution transmission money Source, and then can be avoided ascending HARQ course and lead to the problem of cannot sending data due to always occupying less than channel, reduce The average delay of ascending HARQ course ensure that the fairness that resource is utilized between ascending HARQ course, be conducive to promote system The handling capacity of system.

In the above-mentioned technical solutions, it is preferable that transmission priority of each ascending HARQ course when being retransmitted The number of re-transmission is missed with each ascending HARQ course and/or each ascending HARQ course connects from establishing to terminal Duration positive correlation experienced before receiving ACK message.

In the technical scheme, by make transmission priority of the ascending HARQ course when being retransmitted and ascending HARQ into Journey misses the number positive correlation of re-transmission, and the ascending HARQ course for enabling the number for missing re-transmission more obtains higher Transmission priority, and then can be avoided ascending HARQ course and due to always occupying less than channel lead to that data cannot be sent Problem reduces the average delay of ascending HARQ course；Similarly, by making transmission of the ascending HARQ course when being retransmitted Duration positive correlation experienced before priority and ascending HARQ course receive ACK message to terminal from foundation, makes Higher transmission priority can be obtained by obtaining the biggish ascending HARQ course of time delay, and then can reduce the flat of ascending HARQ course Equal time delay.

In any of the above-described technical solution, it is preferable that in the number for missing re-transmission according to each ascending HARQ course Duration experienced before receiving ACK message to terminal from foundation with each ascending HARQ course determines described each In the case where transmission priority of the ascending HARQ course when being retransmitted, the determination unit 604 is specifically used for: according to described The number that each ascending HARQ course misses re-transmission determines transmission priority of the ascending HARQ course when retransmitting；Multiple Ascending HARQ course miss re-transmission number it is identical when, received according to the multiple ascending HARQ course from establishing to terminal Duration experienced determines transmission priority of the multiple ascending HARQ course when retransmitting before ACK message.

In any of the above-described technical solution, it is preferable that the ascending HARQ course transmitting device in the unauthorized frequency range 600, further includes: processing unit 608 misses re-transmission for counting on any ascending HARQ course in the statistic unit 602 Reaching for number is experienced before pre-determined number and/or any ascending HARQ course receive ACK message to terminal from foundation When duration reaches the first scheduled duration, give up any ascending HARQ course.

In any of the above-described technical solution, it is preferable that the determination unit 604 is also used to: if in the allocation unit 606 After being assigned with transfer resource to each ascending HARQ course, there are also available transfer resources, it is determined whether in need The other ascending HARQ courses retransmitted；The other ascending HARQ courses retransmitted if necessary, it is determined that other ascending HARQs The transmission priority of process, and according to the priority of other ascending HARQ courses, to its allocation of transmission resources.

In the technical scheme, after to above-mentioned each ascending HARQ course allocation of transmission resources, if there are also available Transfer resource, then may determine whether other ascending HARQ courses of re-transmission in need, determining the other of re-transmission in need When ascending HARQ course, according to the priority of other ascending HARQ courses to its allocation of transmission resources, make it possible to guarantee to transmit Resource is fully utilized, and improves the utilization rate of resource.Wherein, however, it is determined that the other ascending HARQs for not needing to retransmit into Remaining transfer resource can be used then to establish new HARQ process in journey.

In any of the above-described technical solution, it is preferable that the allocation unit 606 is specifically used for: being examined every time in the terminal When measuring the up channel of unauthorized frequency range can occupy, the corresponding transfer resource of first sub-frame of uplink later is distributed to excellent The first highest ascending HARQ course of grade, and continue to test before second sub-frame of uplink later the letter of the unauthorized frequency range Road state；It, will be from first later or when the terminal detects that the up channel of unauthorized frequency range can occupy every time The corresponding transfer resource of predetermined quantity sub-frame of uplink that row subframe starts distributes to predetermined quantity ascending HARQ course.

In the technical scheme, since the detection of up channel is carried out before sub-frame of uplink, if inspection every time The up channel for measuring unauthorized frequency range can occupy, then can only distribute the corresponding transfer resource of a sub-frame of uplink thereafter To the ascending HARQ course of highest priority, i.e., detection channel status is required to before occupying sub-frame of uplink every time；Certainly, every It, can also will the corresponding transmission of predetermined quantity sub-frame of uplink thereafter when the secondary up channel for detecting unauthorized frequency range can occupy Resource allocation gives predetermined quantity ascending HARQ course.Wherein, there are two types of modes to determine the actual number of the predetermined quantity: one Kind is the number of the continuous sub-frame of uplink after detecting channel idle, that is, detects the continuous uplink after channel idle Subframe is all used to carry out the transmission of ascending HARQ, for example detects after channel idle there is 3 sub-frame of uplink, then will be on this 3 Row subframe is all used to transmit ascending HARQ course；Another kind is the portion in the continuous sub-frame of uplink after detecting channel idle Divide sub-frame of uplink, for example detect after channel idle there are 3 sub-frame of uplink, if preceding 2 sub-frame of uplink are all not allocated to it Its user, and the 3rd sub-frame of uplink is allocated to other users, then only takes up preceding 2 sub-frame of uplink to carry out HARQ process Transmission, and after occupying completion, re-start the detection of channel.

Fig. 7 shows the schematic block diagram of the terminal of embodiment according to the present invention.

As shown in fig. 7, the terminal 700 of embodiment according to the present invention, comprising: in unauthorized frequency range as shown in Figure 6 HARQ process transmission device 600.

To sum up, technical solution of the present invention is based on by LTE system in use, proposing primarily directed to unauthorized frequency range The channel resource allocation method of HARQ process priority avoids some HARQ processes that from cannot sending because always occupying less than channel The problem of data, reduces the average delay of HARQ process, ensure that the fairness that resource is utilized between HARQ process.Wherein, Technical solution of the present invention is applicable not only to the scene that unauthorized frequency range is used in a manner of TDD by LTE system, is also applied for non- The scene that authorized spectrum band is used in a manner of SDL or in the way of dynamic uplink and downlink by LTE system.

Specifically as shown in figure 8, the HARQ process transmission method of second embodiment according to the present invention, comprising:

Step 802, data sending terminal determines the HARQ process for needing to be retransmitted.Wherein, data sending terminal can be base station, It can be terminal.

Step 804, data sending terminal competitive channel.

Step 806, judge whether to seize channel success, if so, thening follow the steps 808；Otherwise, continue competitive channel.

Step 808, the time delay T { i } of each HARQ process is counted, and the number of transmissions N led to miss by LBT mechanism {i}。

Step 810, judge with the presence or absence of the identical element of size in N { i }, if so, thening follow the steps 812；Otherwise, it executes Step 816.

Step 812, compare the element in N { i } in T { i } corresponding to the identical element of size, that is, have the transmission missed When the identical HARQ process of number, compare the time delay of these HARQ processes.

Step 814, corresponding process descending arrangement is carried out according to the element size in T { i }.

Step 816, corresponding process descending arrangement is carried out according to the element size in N { i }.

Step 818, the priority of HARQ process is determined according to descending rank results, wherein sequence is more forward, and priority is got over Greatly.

Step 820, channel resource is distributed to HARQ process according to determining priority sequence.

Step 822, busy channel transmits HARQ process.After channel occupancy, return step 804.

In HARQ process transmission method shown in Fig. 8, in order to guarantee communication quality, data sending terminal is in unauthorized frequency range Channel Detection must be carried out before upper transmission data, when detecting that the frequency range does not have other different system to use or noise is smaller It can use.When transmitting terminal detects that channel can be used, biography that transmitting terminal is missed according to the time delay of HARQ process and because of LBT mechanism Defeated number carries out priority ranking, completes to carry out channel resource allocation after sorting with the sequence of priority from high to low.

Wherein, time delay refers to transmitting terminal when experienced to before receiving ACK message after establishing HARQ process Between；The number of transmissions missed refers to that HARQ process accounts for channel resource since LBT mechanism time as defined in timing does not rob Cause normally send the number for retransmitting data.

The excellent of HARQ process is determined in the number of transmissions that misses according to the time delay of the HARQ process of statistics and because of LBT mechanism When first grade, first by HARQ process because the number of transmissions that LBT mechanism is missed is compared, number is bigger, and priority is higher；If going out The consistent HARQ process of the number of transmissions now missed, then compare their HARQ process delay, time delay is bigger, and priority is higher. It comparison result will finally combine twice, and obtain the priority ranking of each HARQ process.In other realities of the invention It applies in example, the number of transmissions that can also miss according only to the time delay of HARQ process or because of LBT mechanism determines the excellent of HARQ process First grade.

It is illustrated respectively below for downlink HARQ process and ascending HARQ course:

One, downlink HARQ process.

1, when needing to transmit downlink data, base station carries out Channel Detection, can in competition to the Tms after channel resource With busy channel.Wherein, statistics HARQ process delay refers to that accounting base-station has been sent, but does not receive under ACK feedback The time delay of row HARQ process；The number of transmissions that statistics HARQ process is missed refers to that statistics has received the downlink HARQ of NACK feedback Process misses the number of re-transmission.

2, when distributing resource, resource is that the higher HARQ process of priority is distributed to as unit of subframe.Wherein, exist When detecting channel idle, multiple downlink subframes can be continuously occupied to transmit HARQ process, such as frame knot shown in Fig. 9 Structure, according to the priority of HARQ process, successively transmits in next 6 downlink subframes when detecting channel idle HARQ process 3, HARQ process 6, HARQ process 1, HARQ process 5, HARQ process 2, HARQ process 4.Wherein, what is continuously occupied is more A subframe be determined according to channel maximum occupation time and continuous downlink subframe number, if continuous downlink subframe when It is long to be not up to channel maximum occupation time, then can occupy this continuous multiple downlink subframe, if continuous downlink subframe when It is long to be greater than channel maximum occupation time, then it is channel maximum occupation time to the occupancy duration of channel.

If the occupied channel duration of the HARQ process 3, counted is less than channel maximum holding time T, met After the HARQ process distribution resource of condition, the statistics for the HARQ process priority that can try again, by remaining down channel Resource allocation is gone out, and so on.If the HARQ process not met after statistics, and down channel resources are also remaining, Then the resource is without distribution.

If still thering is part HARQ process to be not allocated to channel resource 4, at the end of a Channel holding time, Then these processes will not obtain any resource, they will participate in the resource allocation after busy channel next time.

5, the HARQ process priority after the busy channel of base station determines independently of each other, to be independent of each other, every time each time Priority determines that result is only used for current channel resource allocation.

6, when the feedback information of some downlink HARQ process received when base station is ACK confirmation message, the process Time delay and the number of transmissions missed are then reset.

If 7, current subframe direction is uplink, and the holding time of downlink is not over, then terminates the hair of downlink data It send, holding time T is reset.

8, when the number that a downlink HARQ process misses transmission reaches pre-determined number (such as 4 times), then the HARQ is abandoned The data of process, and the time delay of downlink HARQ process and the number of transmissions missed are reset.

9, the feedback timing planning of HARQ process can still adopt TD-LTE system in authorized spectrum band in authorized spectrum band In downlink HARQ timing planning.

Two, ascending HARQ course.

1, when needing to transmit upstream data, terminal carries out Channel Detection, when detecting channel idle, sends to base station Upstream data.Since the maximum holding time of up channel is 1ms, and according to the continuity and detection mode of sub-frame of uplink, Resource distribution mode is broadly divided into following two:

Mode one: as shown in Figure 10 A, when sub-frame of uplink individualism, front and back is all non-sub-frame of uplink, then according to HARQ into The priority of journey, by channel resource allocation to the ascending HARQ course of highest priority.

Mode two: as shown in Figure 10 B, when sub-frame of uplink continued presence, there are two types of the detection modes of up channel: a kind of It is to be detected before each sub-frame of uplink, determines whether to transmit HARQ process on the sub-frame of uplink according to testing result； Another kind is after robbing to account for channel resource before any one sub-frame of uplink wherein, if being still uplink after the subframe Frame, then it is subsequent no longer to do Channel Detection, direct busy channel, until encountering downlink subframe or base station for subsequent uplink Frame is distributed to other users and is used.

Wherein, when doing Channel Detection before each sub-frame of uplink, however, it is determined that up channel can be occupied, then it will letter Ascending HARQ course of the road resource allocation to highest priority；When the channel detection process before any one sub-frame of uplink is robbed It accounts for channel resource and in direct busy channel on the continuous sub-frame of uplink of n later, this n+1 sub-frame of uplink can be divided The higher multiple HARQ processes of dispensing priority.

2, in the HARQ timing planning of TD-LTE, ascending HARQ be it is synchronous, that is, send and retransmit timing be it is fixed, And in the present invention, by distributing resource thus according to priority, therefore the timing that upstream data sends and retransmits is not fixed , i.e., in the inventive solutions, ascending HARQ is asynchronous transmission.

3, the ascending HARQ course time delay counted refers to that statistics terminal has been sent, but does not receive the upper of ACK feedback The time delay of row HARQ process；The number of transmissions that statistics HARQ is missed refers to that statistics has received the ascending HARQ course of NACK feedback Miss the number of re-transmission.

If the HARQ number of processes for 4, carrying out priority ranking is less than the sum of continuous sub-frame of uplink, to qualified After HARQ process distributes resource, the statistics for the HARQ process priority that tries again dispenses remaining uplink channel resources, And so on.If the HARQ process not met after statistics, there are also residues for channel resource, then these resources are without dividing Match.

If 5, at the end of a Channel holding time, still thering is part ascending HARQ course to be not allocated to channel money Source, these processes will not obtain any resource.They will participate in the resource allocation after busy channel next time.

6, the HARQ process priority after terminal busy channel determines independently of each other, to be independent of each other, every time each time Priority determines that result is only used for current channel resource allocation.

7, when the feedback information for some ascending HARQ course that terminal receives is ACK confirmation message, the process Time delay and the number of transmissions missed are then reset.

8, when the number that an ascending HARQ course misses transmission reaches pre-determined number (such as 4 times), then the HARQ is abandoned The data of process, and the time delay of the ascending HARQ course and the number of transmissions missed are reset.

9, the feedback timing planning of HARQ process can still adopt TD-LTE system in authorized spectrum band in authorized spectrum band In ascending HARQ timing planning.

The technical scheme of the present invention has been explained in detail above with reference to the attached drawings, and the invention proposes a kind of new unauthorized frequency ranges On HARQ process transmission scheme, due to always occupying less than channel can lead to that data cannot be sent to avoid HARQ process Problem reduces the average delay of HARQ process, ensure that the fairness that resource is utilized between HARQ process, is conducive to promote system The handling capacity of system.

The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims

1. a kind of HARQ process transmission method in unauthorized frequency range characterized by comprising

Statistical data transmitting terminal makes each HARQ process miss re-transmission in unauthorized frequency range because executing Channel Detection mechanism Number, and/or count duration experienced before each HARQ process receives ACK message to data sending terminal from foundation；

Number and/or each HARQ process transmission from establishing to data of re-transmission are missed according to each HARQ process Duration experienced before termination receives ACK message, determines transmission priority of each HARQ process when being retransmitted；

When the channel for detecting unauthorized frequency range every time can occupy, according to biography of each HARQ process when being retransmitted Defeated priority is to its allocation of transmission resources；

Transmission priority of each HARQ process when being retransmitted and each HARQ process miss the number of re-transmission, And/or each HARQ process from establish receive ACK message to data sending terminal before duration experienced be positively correlated Relationship.

2. the HARQ process transmission method in unauthorized frequency range according to claim 1, which is characterized in that according to Each HARQ process miss re-transmission number and each HARQ process from establish to data sending terminal receive ACK message it Preceding duration experienced, in the case where determining transmission priority of each HARQ process when being retransmitted, described in determination It the step of transmission priority of each HARQ process when being retransmitted, specifically includes:

Transmission priority of the HARQ process when retransmitting is determined according to the number that each HARQ process misses re-transmission；

When the number that multiple HARQ processes miss re-transmission is identical, according to the multiple HARQ process from establishing to data sending terminal Duration experienced determines transmission priority of the multiple HARQ process when retransmitting before receiving ACK message.

3. the HARQ process transmission method in unauthorized frequency range according to claim 1, which is characterized in that further include:

If what any HARQ process missed the number of re-transmission reaches pre-determined number and/or any HARQ process from establishing to data Transmitting terminal before receiving ACK message duration experienced reach the first scheduled duration, then give up any HARQ process.

4. the HARQ process transmission method in unauthorized frequency range according to claim 1, which is characterized in that further include:

If there are also available transfer resources, it is determined whether has after being assigned with transfer resource to each HARQ process The other HARQ processes for needing to retransmit；

The other HARQ processes retransmitted if necessary, it is determined that the transmission priority of other HARQ processes, and according to described The priority of other HARQ processes, to its allocation of transmission resources.

5. the HARQ process transmission method in unauthorized frequency range according to any one of claim 1 to 4, feature exist In in the case where the HARQ process is downlink HARQ process, according to biography of each HARQ process when being retransmitted The step of defeated priority is to its allocation of transmission resources, specifically includes:

When the down channel for detecting unauthorized frequency range every time can occupy, by the second scheduled duration since current subframe Transfer resource distributes to predetermined quantity HARQ process, wherein

If being greater than or equal to predetermined value T to the duration before first non-downlink subframe since the current subframe, by institute Predetermined value T is stated as second scheduled duration；

It, will be described if being less than the predetermined value T to the duration before first non-downlink subframe since the current subframe Duration before current subframe to first non-downlink subframe is as second scheduled duration, wherein predetermined value T is letter Road maximum occupation time.

6. the HARQ process transmission method in unauthorized frequency range according to any one of claim 1 to 4, feature exist In in the case where the HARQ process is ascending HARQ course, according to biography of each HARQ process when being retransmitted The step of defeated priority is to its allocation of transmission resources, specifically includes:

When the up channel for detecting unauthorized frequency range every time can occupy, by the corresponding transmission of first sub-frame of uplink later Resource allocation and continues to test before second sub-frame of uplink later described unauthorized to the HARQ process of highest priority The channel status of frequency range；Or

When the channel for detecting unauthorized frequency range every time can occupy, by the predetermined number since first sub-frame of uplink later It measures the corresponding transfer resource of sub-frame of uplink and distributes to predetermined quantity HARQ process.

7. the HARQ process transmission device in a kind of unauthorized frequency range characterized by comprising

Statistic unit, for statistical data transmitting terminal make in unauthorized frequency range because executing Channel Detection mechanism each HARQ into Journey misses the number of re-transmission, and/or counts before each HARQ process receives ACK message to data sending terminal from foundation and passed through The duration gone through；

Determination unit, the number and/or each HARQ process for missing re-transmission according to each HARQ process are from building Duration experienced before receiving ACK message to data sending terminal is found, determines each HARQ process when being retransmitted Transmission priority；

Allocation unit, when for detecting that the channel of unauthorized frequency range can occupy every time in data sending terminal, according to described each Transmission priority of the HARQ process when being retransmitted is to its allocation of transmission resources；

8. the HARQ process transmission device in unauthorized frequency range according to claim 7, which is characterized in that according to Each HARQ process miss re-transmission number and each HARQ process from establish to data sending terminal receive ACK message it Preceding duration experienced, in the case where determining transmission priority of each HARQ process when being retransmitted, the determination Unit is specifically used for:

9. the HARQ process transmission device in unauthorized frequency range according to claim 7, which is characterized in that further include:

Processing unit reaches predetermined time for counting on any HARQ process in the statistic unit and missing the number of re-transmission Several and/or any HARQ process from establish receive ACK message to data sending terminal before duration experienced to reach first pre- When periodically long, give up any HARQ process.

10. the HARQ process transmission device in unauthorized frequency range according to claim 7, which is characterized in that the determination Unit is also used to:

If after the allocation unit is assigned with transfer resource to each HARQ process, there are also available transfer resource, Then determine whether other HARQ processes of re-transmission in need；

11. the HARQ process transmission device in unauthorized frequency range according to any one of claims 7 to 10, feature exist In in the case where the HARQ process is downlink HARQ process, the allocation unit is specifically used for: in the data sending terminal When detecting the down channel of unauthorized frequency range every time can occupy, the transmission of the second scheduled duration since current subframe is provided Distribute to predetermined quantity HARQ process in source, wherein

12. the HARQ process transmission device in unauthorized frequency range according to any one of claims 7 to 10, feature exist In in the case where the HARQ process is ascending HARQ course, the allocation unit is specifically used for:

When the data sending terminal detects that the up channel of unauthorized frequency range can occupy every time, by first uplink later The corresponding transfer resource of subframe distributes to the HARQ process of highest priority, and continues before second sub-frame of uplink later Detect the channel status of the unauthorized frequency range；Or

It, will be from first later when the data sending terminal detects that the up channel of unauthorized frequency range can occupy every time The corresponding transfer resource of predetermined quantity sub-frame of uplink that row subframe starts distributes to predetermined quantity HARQ process.

13. a kind of base station characterized by comprising in the unauthorized frequency range as described in any one of claim 7 to 11 HARQ process transmission device.

14. a kind of terminal characterized by comprising the unauthorized frequency as described in any one of claim 7,8,9,10 and 12 HARQ process transmission device in section.