CN109587798A

CN109587798A - Reference signal, the determination method and device of control channel unit, storage medium

Info

Publication number: CN109587798A
Application number: CN201711050997.1A
Authority: CN
Inventors: 石靖; 夏树强; 张雯; 梁春丽; 韩祥辉; 任敏
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2017-09-29
Filing date: 2017-10-31
Publication date: 2019-04-05
Anticipated expiration: 2037-10-31
Also published as: WO2019085953A1; CN109587798B; CN116600404A

Abstract

The embodiment of the invention provides a kind of reference signals, the determination method and device of control channel unit, storage medium, wherein, the determination method of above-mentioned reference signal includes: to be indicated in N number of Transmission Time Interval of scheduling by predetermined manner, there are reference signals at least one Transmission Time Interval, wherein, N is positive integer, by adopting the above technical scheme, it solves in the related technology, due to the transmission of reference signals in each short time interval, and then the problem for causing the expense of reference signal larger, reduce the expense of reference signal.

Description

Reference signal, the determination method and device of control channel unit, storage medium

Technical field

The present invention relates to the communications field, in particular to a kind of reference signal, the determination method of control channel unit and Device, storage medium.

Background technique

Fourth generation mobile communication technology (4G, the 4th Generation mobile communication at present Technology) long term evolution (LTE, Long-Term Evolution)/senior long term evolution (LTE-Advance/LTE-A, Long-Term Evolution Advance) and the 5th third-generation mobile communication technology (5G, the 5th Generation mobile Communication technology) demand that is faced is more and more.From the point of view of current development trend, 4G and 5G system is all Enhancing mobile broadband, ultrahigh reliability, the feature of ultralow time delay transmission, magnanimity connection are supported in research.

For the feature for supporting ultrahigh reliability and ultralow time delay to transmit, when needing to transmit low compared with short transmission time interval Prolong highly reliable business, while reaching high reliability demand within the scope of defined delay requirement to meet, or defined The biggish data packet of transmission, needs support the scheduling of multiple short transmission time intervals in delay requirement.In LTE/LTE-A system More subframe schedulings are supported, which can be used for multiple short transmission time interval scheduling.But if in the more of scheduling Reference information is transmitted in each short transmission time interval in a short transmission time interval, compared to more subframe schedulings, can be made Resource utilization reduces, it is therefore desirable to reference signal expense is reduced, and there is no consider to reduce during traditional subframe scheduling Pilot-frequency expense.

For in the related technology, due to the transmission of reference signals in each short time interval, and then lead to reference signal The larger problem of expense, not yet put forward effective solutions.

Summary of the invention

The embodiment of the invention provides a kind of reference signal, the determination method and device of control channel unit, storage medium, At least to solve in the related technology due to the transmission of reference signals in each short time interval, and then lead to opening for reference signal Sell larger problem.

According to one embodiment of present invention, a kind of determination method of reference signal is provided, comprising:

Through predetermined manner instruction in N number of Transmission Time Interval TTI of scheduling, exist at least one TTI with reference to letter Number, wherein N is positive integer.

Optionally, when the position of the reference signal is fixed in TTI, through predetermined manner instruction in N number of transmission Between be spaced TTI in, there are reference signals, including at least one of at least one TTI:

Mode one: in N number of Transmission Time Interval TTI, only in first TTI there are reference signal, without ginseng in remaining TTI Examine signal；

Mode two: it indicates in N number of TTI of scheduling containing a TTI where reference signal；

Mode three: indicate whether each TTI contains reference signal in N number of TTI of scheduling；

Mode four: it indicates in N number of TTI of scheduling containing the at most K TTI where reference signal, wherein K is less than N's Positive integer；

Mode five: in the N number of TTI for indicating scheduling, whether carried in remaining TTI other than first TTI reference signal and Carry the position of reference signal, wherein first TTI has reference signal always, indicates whether that another TTI includes reference signal And another position TTI comprising the reference signal；

Mode six: by indicating reference signal pattern in N number of TTI, wherein

The reference signal pattern is one group of pattern when dispatching TTI quantity x,

Or the reference signal pattern carries scheduling TTI quantity information simultaneously,

Or the reference signal pattern carries feedback affirmative acknowledgement (Acknowledge, referred to as ACK)/negative simultaneously and answers Answer (Non Acknowledge, referred to as NACK) timing information.

Optionally, in N number of TTI 2 or 2 TTI or more there are when reference signal, the type phase of the reference signal Together.

Optionally, in N number of TTI 2 or 2 TTI or more there are when reference signal, it is described when TTI type difference The type of reference signal is identical.

Optionally, the mode five is realized one of in the following manner:

Indicate in N number of TTI, in addition to first TTI in remaining TTI 1 comprising reference signal TTI position；

It is indicated in N number of TTI other than first TTI using 1bit, if there are another TTI to include reference signal.

Optionally, the method also includes:

When there is another TTI to include reference signal, which is fixed on the last one in N number of TTI of scheduling.

Optionally, in downlink transmission process, Physical Downlink Shared Channel PDSCH is supported to use Physical Downlink Control Channel The not used resource of PDCCH includes at least one of following situations:

In N number of TTI, only first TTI supports PDSCH to use the not used resource of PDCCH；

In N > 1, PDSCH is not supported to use the not used resource of PDCCH；

In N=1, PDSCH is supported to use the not used resource of PDCCH；

In N number of TTI, all TTI and first TTI reuse the identical not used resource of PDCCH.

Optionally, the timing of the data feedback ACK/NACK carried in N number of TTI is determined according to reference signal position, really Determining method includes at least one following manner:

Mode 1: corresponding when first TTI includes reference signal when only having 1 TTI comprising reference signal in multiple TTI Corresponding to feeding back ACK/NACK timing when feeding back ACK/NACK timing is k1 and non-first TTI includes reference signal is k2 When, meet k1 < k2；

Mode 2: including reference signal in the last one TTI when there is greater than 1 TTI to include reference signal in multiple TTI When correspond to feeding back ACK/NACK timing be k3, and the last one TTI do not include reference signal when correspond to feeding back ACK/NACK When timing is k4, meet k3 > k4；

Wherein, k1, k2, k3, k4 are positive number.

Optionally, it when the position of the reference signal is not fixed in TTI, is indicated by predetermined manner in N number of transmission In time interval TTI, there are reference signals at least one TTI, and the reference signal position is not fixed in TTI, including At least one of:

Mode one: pass through the reference signal pattern of first TTI in the N number of TTI of instruction, wherein the reference signal pattern with Reference signal pattern when single TTI is dispatched is consistent；

Mode two: by indicating the reference signal pattern in N number of TTI in a TTI and TTI, wherein the reference signal Reference signal pattern when pattern is dispatched with list TTI is consistent；

Mode three: pass through the reference signal pattern of at most K TTI in the N number of TTI of instruction, wherein the reference signal pattern and Reference signal pattern when single TTI is dispatched is consistent, and wherein K is the positive integer less than N；

Mode four: the reference signal pattern by indicating each TTI in N number of TTI, wherein the reference signal pattern and list Reference signal pattern when TTI is dispatched is consistent；

Mode five: in the N number of TTI for indicating scheduling, whether carried in remaining TTI other than first TTI reference signal and Carry the position of reference signal, wherein first TTI has reference signal always, indicates whether that another TTI includes reference signal And another position TTI and instruction reference signal position in the TTI comprising the reference signal；

Mode six: by indicating the reference signal pattern in N number of TTI, wherein

Or the reference signal pattern carries feeding back ACK/NACK timing information simultaneously；

Wherein, the position of the reference signal is fixed in TTI.

Optionally, the mode five is realized one of in the following manner:

Indicate in N number of Transmission Time Interval, in addition to first Transmission Time Interval in remaining Transmission Time Interval 1 include The position and instruction reference signal position in the Transmission Time Interval of the Transmission Time Interval of reference signal；

It indicates in N number of Transmission Time Interval other than first Transmission Time Interval, if there are another transmission times Interval includes reference signal and instruction reference signal position in the Transmission Time Interval.

Optionally, the method also includes:

According to still another embodiment of the invention, a kind of determination method of reference signal is additionally provided, comprising:

It is determined in SPS transmission in every N number of Transmission Time Interval, at least one Transmission Time Interval by predetermined manner There are reference signals, wherein N is positive integer.

Optionally, the time-domain position of the reference signal is fixed in Transmission Time Interval, and the predetermined manner is at least wrapped Include following one:

Mode one: it is predefined in per N number of Transmission Time Interval, only has reference signal in first Transmission Time Interval；

Mode two: whether reference signal density is reduced in every N number of Transmission Time Interval by signaling instruction, wherein no It reduces reference signal density and refers to that N number of Transmission Time Interval all contains reference signal, reduce reference signal density and refer to less than N number of biography Contain reference signal in defeated time interval；

Mode three: the reference signal pattern in every N number of Transmission Time Interval is indicated by signaling.

Optionally, reference signal density is reduced at least through one of following manner: only having ginseng in first Transmission Time Interval Examine signal；There is reference signal in only first and the last one Transmission Time Interval；It is only first and relative to first offset x transmit There is reference signal in time interval, wherein x is the integer for being derived from set [0, N].

Optionally, the time-domain position of the reference signal is not fixed in Transmission Time Interval, and the predetermined manner is at least Including at least one of:

Mode one: it is predefined in per N number of Transmission Time Interval, N number of Transmission Time Interval all contains reference signal；

Mode two: it is predefined in per N number of Transmission Time Interval, only has reference signal in first Transmission Time Interval；

Mode three: whether reference signal density is reduced in every N number of Transmission Time Interval by signaling instruction, wherein no It reduces reference signal density and refers to that N number of Transmission Time Interval all contains reference signal, reduce reference signal density and refer to less than N number of biography Contain reference signal in defeated time interval；

Mode four: the reference signal pattern in every N number of Transmission Time Interval is indicated by signaling.

Optionally, in every N number of Transmission Time Interval, only first orthogonal frequency in the Transmission Time Interval containing reference signal Divide in multiplexing OFDM symbol and contains reference signal.

Optionally, the Transmission Time Interval where the transmission of business for the first time of activation SPS transmission contains reference signal.

It optionally, is only that 1 Transmission Time Interval is effective in the period, in other weeks when the signaling is physical layer signaling The corresponding all bits of the signaling set 0 and transmit activation confirmation for SPS or deactivate confirmation when the phase；Or the period be 1 Be respectively provided with different meanings when Transmission Time Interval is from other periods, wherein the period be 1 Transmission Time Interval effectively and It is indicated for reference signal in every N number of Transmission Time Interval, single Transmission Time Interval reference signal is used at other periods Instruction.

Optionally, the method is applied to semi-persistent scheduling SPS and the SPS period is 1 Transmission Time Interval.

According to another embodiment of the invention, a kind of determination method of semi-persistent scheduling SPS transmission time is additionally provided, Include:

SPS period, deviant and tti length combined coding are indicated by high-level signaling, wherein when transmitting Between gap length and SPS period, deviant combined coding；Or SPS period and deviant are indicated by high-level signaling, swash simultaneously The physical layer signaling of SPS transmission living is located at limited transmission time；Or the SPS period is notified by high-level signaling, while activating SPS Transmitting physical layer signaling is located at limited transmission time, and combined coding instruction deviant and tti length；

By indicating that obtained following one determines SPS transmission time: SPS period, deviant and Transmission Time Interval Length；SPS period and deviant；Deviant and tti length.

Optionally, the limited transmission time be include at least one of: be only located at Physical Downlink Control Channel (Physical Downlink Control CHannel, referred to as PDCCH), it is only located at short transmission time interval #0 and/or short Transmission Time Interval #3, it is only located at the control resource collection configured in time slot and the resource collection is located at preceding P symbol in time slot In, first control resource collection in the time domain that is only located in the multiple control resource collections configured in time slot, wherein P value packet It includes: 1,2,3,7.

Optionally, combined coding includes at least: the SPS period and the unified instruction of offset, then for for every kind of period Deviant value quantity is the number for including 1 short transmission time interval or 1 business duration in the SPS period；Or for for every It includes 1 short transmission time interval or 1 business duration that the deviant value quantity in kind period, which is less than or equal to the SPS period, Number.

According to another embodiment of the invention, a kind of determination method of control channel unit is additionally provided, comprising:

Selected part resource unit group forms a control channel unit in N number of resource unit group, at least through following One of mode forms a control channel unit:

For the physical downlink control channel PDCCH based on demodulated reference signal, in control channel unit CCE and resource list When being mapped as distributed mapping of tuple REG at least meets following principle: with M REG be one group on frequency domain at equal intervals or Isolation dissipates one CCE of composition, and wherein M is the REG quantity that K RB includes in a TTI, wherein K is positive integer, and N is positive whole Number；

For the physical downlink control channel PDCCH based on cell reference signals, in control channel unit CCE and resource list When being mapped as distributed mapping of tuple REG at least meets following principle: in single symbol one group on frequency domain at equal intervals or The REG of spaced discrete forms a CCE.

Optionally, it in control channel unit CCE and when being mapped as centralized mapping of resource unit group REG, is individually according with One group of one CCE of continuous REG composition on frequency domain in number, and polymerization grade is indicated using deinterleaving method or physical layer signaling, Or different scrambling is carried out to the information of different polymerization grades.

Optionally, it is described in single symbol one group on frequency domain at equal intervals or the REG of spaced discrete form a CCE, When for short Physical Downlink Control Channel sPDCCH, the sREG index for forming sCCE#n is at least one following manner:

Mode one:

Mode two:

Wherein n=0 ..., N_sCCE,p- 1 and N_sCCE,pIndicate the sCCE number in control channel resource set of blocks p,AndIndicate the sREG number for including in each sCCE,Indicate control channel resource block collection Close the sREG number for including in each OFDM symbol in p.

Optionally, the deinterleaving method includes: the Candidate Set for being L for a polymerization grade, and the Candidate Set is included REG indexed sequential be written interleaver, according to column permutation pattern from interleaver read, empty element is deleted after reading, wherein REG index is defined as sky element when being greater than X；

Wherein, L=1,2,4 or 8；

Wherein X=LM-1, M indicate the REG number for including in each CCE.

Optionally, the column permutation pattern includes at least one of:

<1,17,9,25,5,21,13,29,3,19,11,27,7,23,15,31,0,16,8,24,4,20,12,28,2, 18,10,26,6,22,14,30>；

<0,4,8,12,16,20,24,28,1,5,9,13,17,21,25,29,2,6,10,14,18,22,26,30,3,7, 11,15,19,23,27,31>。

According to another embodiment of the invention, a kind of determining device of reference signal is additionally provided, comprising:

First indicating module, for being indicated in N number of Transmission Time Interval TTI of scheduling by predetermined manner, at least one There are reference signals in a TTI, wherein N is positive integer.

According to another embodiment of the invention, a kind of determining device of control channel unit is additionally provided, comprising:

Module is chosen, the selected part resource unit group in N number of resource unit group is used for and forms a control channel unit, A control channel unit is formed at least through one of following manner:

First determining module, for determining every N number of transmission time in semi-persistent scheduling SPS transmission by predetermined manner In interval, there are reference signals at least one Transmission Time Interval, wherein N is positive integer.

According to another embodiment of the invention, a kind of determining device of semi-persistent scheduling SPS transmission time is additionally provided, Include:

Indicating module, for indicating that SPS period, deviant and Transmission Time Interval are long by high-level signaling combined coding Spend combined coding；Or the physical layer signaling position that SPS period and deviant are indicated by high-level signaling, while SPS being activated to transmit In limited transmission time；Or the SPS period is notified by high-level signaling, while it is limited to activate SPS transmitting physical layer signaling to be located at Transmission time, and combined coding instruction deviant and tti length；

Second determining module, the following one for being obtained by instruction determine SPS transmission time: SPS period, deviant And tti length；SPS period and deviant；Deviant and tti length.

According to another embodiment of the invention, also a kind of storage medium, the storage medium include the program of storage, In, the determination method of reference signal or the determination method of control channel unit are executed when described program is run.

Through the invention, due to that can be indicated in N number of Transmission Time Interval TTI of scheduling by predetermined manner, at least There are reference signals in one TTI, and then can indicate that in N number of Transmission Time Interval it is not all the presence of reference in each TTI Signal solves in the related technology, due to the transmission of reference signals in each short time interval, and then leads to reference signal The larger problem of expense, reduces the expense of reference signal.

Detailed description of the invention

The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:

Fig. 1 is the flow chart of the determination method of reference signal according to an embodiment of the present invention；

Fig. 2 is the structural block diagram of the determining device of reference signal according to an embodiment of the present invention；

Fig. 3 is the flow chart of the determination method of control channel unit according to an embodiment of the present invention；

Fig. 4 is the structural block diagram of the determining device of control channel unit according to an embodiment of the present invention；

Fig. 5 is the structural schematic diagram of the downlink sTTI of alternative embodiment according to the present invention；

Fig. 6 is the structural schematic diagram of the uplink sTTI of alternative embodiment according to the present invention；

Fig. 7 is the schematic diagram of the centralized mapping of alternative embodiment and distributed mapping according to the present invention；

Fig. 8 is another schematic diagram of the centralized mapping of alternative embodiment and distributed mapping according to the present invention；

Fig. 9 is the another flow chart of the determination method of reference signal according to an embodiment of the present invention；

Figure 10 is the flow chart according to the determination method of the SPS transmission time of the embodiment of the present invention；

Figure 11 is another structural block diagram of the determining device of reference signal according to an embodiment of the present invention；

Figure 12 is the structural block diagram of the determining device of SPS transmission time according to an embodiment of the present invention.

Specific embodiment

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.

It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, " Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.

Embodiment 1

A kind of determination method of reference signal is provided in the present embodiment, and Fig. 1 is reference according to an embodiment of the present invention The flow chart of the determination method of signal, as shown in Figure 1, the process includes the following steps:

Step S102, through predetermined manner instruction in N number of Transmission Time Interval of scheduling, between at least one transmission time There are reference signals in, wherein N is positive integer.

Through the invention, due to that can be indicated in N number of Transmission Time Interval TTI of scheduling by predetermined manner, at least There are reference signals in one TTI, and then can indicate that in N number of Transmission Time Interval it is not all the presence of reference in each TTI Signal, and then solve in the related technology, due to the transmission of reference signals in each short time interval, and then cause with reference to letter Number the larger problem of expense, reduce the expense of reference signal.

Although what the embodiment of the present invention limited is to exist at least one TTI in N number of Transmission Time Interval TTI with reference to letter Number, but in order to preferably solve technical problem, at least one TTI is indicated by predetermined manner, and be less than or equal to N number of TTI and deposit In reference signal.

Optionally, it when the position of the reference signal is fixed in TTI, is indicated by predetermined manner in N number of transmission time In interval, there are reference signals, including at least one of at least one TTI:

Mode six: by indicating reference signal pattern in N number of TTI, wherein

Or the reference signal pattern carries feeding back ACK/NACK timing information simultaneously.

It should be noted that the implementation of aforesaid way one to mode six can be applied to downlink transmission process, it can also During application uplink, the embodiment of the present invention is not construed as limiting this.Preferred embodiment one to mode six is used for reference signal Position scene fixed in TTI.

Optionally, in N number of TTI 2 or 2 TTI or more there are when reference signal, it is described when TTI type difference The type of reference signal is identical, and in embodiments of the present invention, TTI type is different subframe types, such as MBSFN sub-frame, non-MBSFN Subframe；Or TTI type is different time-gap slot type, such as pure downlink slot, pure uplink slot, descender+reserved part+on The slot of row part composition.

Optionally, the mode five is realized one of in the following manner:

It is indicated in N number of TTI other than first TTI using 1bit, if there are another TTI to include reference signal, when When having another TTI to include reference signal, which is fixed on the last one in N number of TTI of scheduling.

Optionally, Physical Downlink Shared Channel PDSCH (it also will be understood that at being short sPDSCH) is supported to use physical down Control channel PDCCH (sPDCCH) not used resource includes at least one of following situations:

In N > 1, PDSCH is not supported to use the not used resource of PDCCH；

In N=1, PDSCH is supported to use the not used resource of PDCCH；

Wherein, k1, k2, k3, k4 are positive number.

Optionally, when the position of the reference signal is not fixed in TTI, through predetermined manner instruction in N number of transmission Between be spaced TTI in, there are reference signals, including at least one of at least one TTI:

It should be noted that the implementation of aforesaid way one to mode six can be applied to uplink process, it can also With in application downlink transmission process, the embodiment of the present invention is not construed as limiting this.Preferred embodiment one to mode six is used for reference signal Position unfixed scene in TTI.

Optionally, in N number of TTI 2 or 2 TTI or more there are when reference signal, it is described when TTI type difference The type of reference signal is identical, wherein TTI type is different subframe types, such as MBSFN sub-frame, non-MBSFN sub-frame；Or TTI class Type is different time-gap slot type, as pure downlink slot, pure uplink slot, descender+reserved part+ascender form slot。

Optionally, the mode five is realized one of in the following manner:

It indicates in N number of Transmission Time Interval other than first Transmission Time Interval, if there are another transmission times Interval includes reference signal and instruction reference signal position in the Transmission Time Interval, it is preferable that is referred to using 1bit Show in N number of Transmission Time Interval other than first Transmission Time Interval, if there are another Transmission Time Intervals to include ginseng Examine signal and instruction reference signal position in the Transmission Time Interval.

Optionally, the method also includes:

Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation The method of example can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but it is very much In the case of the former be more preferably embodiment.Based on this understanding, technical solution of the present invention is substantially in other words to existing The part that technology contributes can be embodied in the form of software products, which is stored in a storage In medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be mobile phone, calculate Machine, server or network equipment etc.) execute method described in each embodiment of the present invention.

Embodiment 2

Additionally provide a kind of determining device of reference signal in the present embodiment, the device for realizing above-described embodiment and Preferred embodiment, the descriptions that have already been made will not be repeated.As used below, predetermined function may be implemented in term " module " The combination of the software and/or hardware of energy.It is hard although device described in following embodiment is preferably realized with software The realization of the combination of part or software and hardware is also that may and be contemplated.

Fig. 2 is the structural block diagram of the determining device of reference signal according to an embodiment of the present invention, as shown in Fig. 2, the device Include:

First indicating module 20, for being indicated in N number of Transmission Time Interval TTI of scheduling by predetermined manner, at least There are reference signals in one TTI, wherein N is positive integer.

In one alternate embodiment, the first indicating module 20 is also used at least execute following one operation:

When the position of the reference signal is fixed in TTI, indicated by predetermined manner in N number of Transmission Time Interval In TTI, there are reference signals, including at least one of at least one TTI:

Mode six: by indicating reference signal pattern in N number of TTI, wherein

Or the reference signal pattern carries feeding back ACK/NACK timing simultaneously.

Optionally, the mode five is realized one of in the following manner:

Optionally, in downlink transmission process, support Physical Downlink Shared Channel PDSCH (it also will be understood that at being short SPDSCH) one of following situations is included at least using physical downlink control channel PDCCH (sPDCCH) not used resource:

In N > 1, PDSCH is not supported to use the not used resource of PDCCH；

In N=1, PDSCH is supported to use the not used resource of PDCCH；

Wherein, k1, k2, k3, k4 are positive number.

Mode five: in the N number of TTI for indicating scheduling, whether carried in remaining TTI other than first TTI reference signal and Carry the position of reference signal, wherein first TTI has reference signal always, indicates whether that another TTI includes reference signal And another position TTI comprising the reference signal and the position in the TTI；

Optionally, the mode five is realized one of in the following manner:

Optionally, the method also includes:

It should be noted that the implementation of aforesaid way one to mode five can be applied to downlink transmission process, it can also During application uplink, the embodiment of the present invention is not construed as limiting this.

Embodiment 3

In embodiments of the present invention, a kind of determination method of control channel unit is additionally provided, Fig. 3 is real according to the present invention The flow chart of the determination method of the control channel unit of example is applied, as shown in figure 3, the process includes the following steps:

Step S302, selected part resource unit group forms a control channel unit in N number of resource unit group, at least One of in the following manner one control channel unit of composition:

Through the above steps, by the way of step S302 in N number of resource unit group selected part resource unit group group At a control channel unit, and then for the physical downlink control channel PDCCH based on demodulated reference signal and can be based on The physical downlink control channel PDCCH of cell reference signals each provides a kind of determination scheme of control channel unit.

Wherein, the preferred value 1,2,3 of K.

Optionally, it in control channel unit CCE and when being mapped as centralized mapping of resource unit group REG, is individually according with One group of one CCE of continuous REG composition on frequency domain in number, and in order to avoid the REG resource that high polymerization grade uses is complete Polymerization grade is indicated comprising the REG resource that oligomerization grade uses, and using deinterleaving method or physical layer signaling, or poly- to difference The information for closing grade carries out different scrambling.

In embodiments of the present invention, the deinterleaving method includes: the Candidate Set for being L for a polymerization grade, the time Interleaver is written in the REG indexed sequential that selected works are included, and reads according to column permutation pattern from interleaver, deletes empty element after reading It removing, wherein REG index is defined as sky element when being greater than X,

Wherein, L=1,2,4 or 8, i.e. L may value 1, one of 2,4,8；

Wherein X=LM-1, M indicate the REG number for including in each CCE.

Optionally, the column permutation pattern includes at least one of:

Embodiment 4

A kind of determining device of control channel unit is additionally provided in the present embodiment, and the device is for realizing above-mentioned implementation Example and preferred embodiment, the descriptions that have already been made will not be repeated.As used below, term " module " may be implemented pre- Determine the combination of the software and/or hardware of function.Although device described in following embodiment is preferably realized with software, The realization of the combination of hardware or software and hardware is also that may and be contemplated.

Fig. 4 is the structural block diagram of the determining device of control channel unit according to an embodiment of the present invention, as shown in figure 4, should Device includes:

Module 40 is chosen, for one control channel list of selected part resource unit group composition in N number of resource unit group Member forms a control channel unit at least through one of following manner:

Through the above technical solutions, selected part resource unit group forms in N number of resource unit group using aforesaid way One control channel unit, and then can be for the physical downlink control channel PDCCH based on demodulated reference signal and based on small The physical downlink control channel PDCCH of area's reference signal each provides a kind of determination scheme of control channel unit.

Embodiment 5

According to embodiments of the present invention, a kind of determination method of reference signal is additionally provided, as shown in figure 9, Fig. 9 is according to this The another flow chart of the determination method of the reference signal of inventive embodiments, as shown in Figure 9, comprising:

Step S902: at least one transmission in SPS transmission in every N number of Transmission Time Interval is determined by predetermined manner There are reference signals in time interval, wherein N is positive integer.

It should be noted that the preferred value of N is 2. in the preferred embodiment of the present invention

Mode three: whether reference signal density is reduced in every N number of Transmission Time Interval by signaling instruction, wherein no It reduces reference signal density and refers to that N number of Transmission Time Interval all contains reference signal, reduce reference signal density and refer to less than N number of biography Contain reference signal in defeated time interval, it is preferable that can indicate by the signaling of 1bit in every N number of Transmission Time Interval Whether reference signal density is reduced；

Embodiment 6

In embodiments of the present invention, a kind of determination method of semi-persistent scheduling SPS transmission time is additionally provided, Figure 10 is root According to the flow chart of the determination method of the SPS transmission time of the embodiment of the present invention, as shown in Figure 10, comprising:

Step S1002 indicates SPS period, deviant and tti length by high-level signaling, wherein transmitting Time interval length and SPS period, deviant combined coding；Or SPS period and deviant are indicated by high-level signaling, simultaneously The physical layer signaling of SPS transmission is activated to be located at limited transmission time；Or the SPS period is notified by high-level signaling, it activates simultaneously SPS transmitting physical layer signaling is located at limited transmission time, and combined coding instruction deviant and tti length；

Step S1004, by indicating that obtained following one determines SPS transmission time: SPS period, deviant and biography Defeated time interval length；SPS period and deviant；Deviant and tti length.

Optionally, the limited transmission time be include at least one of: when being only located at PDCCH, being only located at short transmission Between be spaced sTTI#0 and/or short transmission time interval sTTI#3 (i.e. index value be 0,3 sTTI), be only located in time slot (slot) The control resource collection and the resource collection of configuration are located in time slot in preceding P symbol, are only located at the multiple controls configured in time slot First control resource collection in time domain in resource collection processed, wherein P value includes: 1,2,3,7, i.e. the possibility value of P is 1, One in 2,3,7.

Embodiment 7

Figure 11 is another structural block diagram of the determining device of reference signal according to an embodiment of the present invention, as shown in figure 11, The device includes:

First determining module 1102, for determining every N number of transmission in semi-persistent scheduling SPS transmission by predetermined manner In time interval, there are reference signals at least one Transmission Time Interval, wherein N is positive integer.

It should be noted that the preferred value of N is 2 in the preferred embodiment of the present invention.

Optionally, in every N number of Transmission Time Interval, only first orthogonal frequency division multiplex OFDM in each Transmission Time Interval Symbol contains reference signal.

Embodiment 8

A kind of determining device of SPS transmission time is additionally provided in the present embodiment, and the device is for realizing above-mentioned implementation Example and preferred embodiment, the descriptions that have already been made will not be repeated.As used below, term " module " may be implemented pre- Determine the combination of the software and/or hardware of function.Although device described in following embodiment is preferably realized with software, The realization of the combination of hardware or software and hardware is also that may and be contemplated.

Figure 12 is the structural block diagram of the determining device of SPS transmission time according to an embodiment of the present invention, as shown in figure 12, should Device includes:

Indicating module 1202, for being indicated between SPS period, deviant and transmission time by high-level signaling combined coding Every length combined coding；Or the physical layer letter that SPS period and deviant are indicated by high-level signaling, while SPS being activated to transmit It enables and is located at limited transmission time；Or the SPS period is notified by high-level signaling, while SPS transmitting physical layer signaling being activated to be located at Limited transmission time, and combined coding instruction deviant and tti length；

Second determining module 1204, for determining SPS transmission time by the obtained following one of instruction: SPS period, partially Shifting value and tti length；SPS period and deviant；Deviant and tti length.

Above-mentioned technical proposal is explained below in conjunction with preferred embodiment 1-5, but it is real to be not used in the restriction present invention Apply the technical solution of example.

Preferred embodiment 1

Base station schedules terminals A transmits downlink data in multiple TTI.It is preferred that the OFDM symbol number that the TTI includes is less, example Such as it is no more than 7 OFDM symbols, it is not limited to this.The present embodiment is with long term evolution (Long-Term Evolution, letter Referred to as LTE) short TTI structure is illustrated in system, i.e., the described TTI can be understood as short TTI (short TTI, referred to as STTI), but it is not limited to this.DL short TTI frame structure is as shown in figure 5, include 6 DL (Down in 1ms subframe Link) short TTI uses Pattern1 when sPDSCH is configured as originating from OFDM symbol #1 or #3；When sPDSCH is configured When to originate from OFDM symbol #2, Pattern2 is used.Notice that OFDM symbol number is since 0 here, i.e. OFDM in 1ms subframe There are 14, serial number is #0 to #13.

The DCI for dispatching more sTTI can be transmitted in any DL sTTI, when the DCI is located at DL sTTI#0, by PDCCH Channel bearing；When the DCI is located at DL sTTI#1 to #5, by sPDCCH channel bearing.Alternatively, the DCI for dispatching more sTTI can be with It transmits in the sTTI of part, such as is only transmitted in DL sTTI#0, in another example only being transmitted in DL sTTI#0,3.

When dispatching more sTTI transmission, maximum dispatches N number of sTTI transmission.It is N number of at this time to be continuously available for transmission sPDSCH's sTTI.It should be noted that there are sPDSCH to be configured as in the scene of sTTI#0, i.e. sPDSCH from OFDM symbol #2 Or when #3 starting, sTTI#0 cannot be used for sPDSCH transmission at this time.It is preferred that N=2 or 3 or 4 or 6 or 8 or 12 or 16, but not only limit In this.Determined it is maximum dispatch N number of sTTI transmission when, the quantity of the transmission of multiple sTTI of actual schedule is 1 to N number of sTTI.Wherein the method for determination of N value is predefined or the value of high-level signaling configuration.During being described below by taking N=4 as an example It is described, is not limited to that.

In the N=4 DL sTTI transmission of scheduling, demodulated reference signal (Demodulation Reference Signal, referred to as DMRS, it is understood that at the reference signal of above-described embodiment) position method of determination be with down toward It is one of few: although it should be noted that the present embodiment is transmitted as example with downlink is illustrated, the determination of the position DMRS Mode is not limited in for downlink, can be used for uplink.The preferred pin field fixed in TTI to DMRS in the present embodiment Scape.

Mode 1: defaulting in each sTTI has DMRS；

The utility model has the advantages that at this time without additional instruction.Without standardization, more sTTI scheduling mechanisms and the more subframe scheduling machines of eLAA It makes identical.Expense ratio is identical when DMRS expense is dispatched with list sTTI, no saving.

Mode 2: there is DMRS in the first sTTI that default is only dispatched, without DMRS in remaining sTTI；

The utility model has the advantages that at this time without additional instruction.DMRS expense can be saved, standardization is simple.It is moved suitable for non-high-speed Dynamic scene.

Mode 3: it only indicates in N number of sTTI of scheduling containing 1 sTTI where DMRS；

The sTTI containing DMRS is located at any one in multiple sTTI of scheduling at this time, by taking N=4 as an example, if only considering 1 When a sTTI includes DMRS, 2bit indicates one in 4 sTTI；

The utility model has the advantages that DMRS expense can be saved, flexibly instruction includes the sTTI of DMRS, is not limited in multiple sTTI First.

Mode 4: it indicates in N number of sTTI of scheduling containing at most N number of sTTI where DMRS；

The sTTI containing DMRS is located at any position in multiple sTTI of scheduling at this time and at most N number of sTTI contains DMRS, by taking N=4 as an example, 4bit indicates that at most 4 sTTI include DMRS in a manner of bitmap；

The utility model has the advantages that DMRS expense can be saved, and indicate that expense is maximum but most flexible, the sTTI comprising DMRS can All contain DMRS to be located at any position and at most N number of sTTI.

Mode 5: it only indicates in multiple sTTI of scheduling containing at most 2 sTTI where DMRS；

Indicate that most 2 sTTI contain DMRS in N number of sTTI at this time.Such as N=4,4bit instruction is needed at this time altogether Count 10 kinds of possibilityThere is 1 sTTI to contain and contains (6 kinds of DMRS in DMRS (4 kinds of possibility) or 2 sTTI May).In another example needing 5bit to indicate to amount to 21 kinds of possibility at this time as N=6There is 1 STTI contains in DMRS (6 kinds of possibility) or 2 sTTI and contains DMRS (15 kinds of possibility).

The utility model has the advantages that flexibly instruction include DMRS sTTI, at most be located at any 2 sTTI in, instruction expense be equal to or Less than mode 4.

Mode 6: indicate whether carry DMRS and position in remaining sTTI other than first sTTI in N number of sTTI of scheduling It sets.Default first sTTI has DMRS always, indicates whether that another sTTI includes DMRS and another sTTI comprising DMRS Position.

Mode 6 further include: submode 6-1 and submode 6-2, wherein submode 6-1: instruction is located at comprising DMRS except head It is located at 1 sTTI in remaining sTTI other than a sTTI.Such as when N=4, indicated whether as shown in table 1 below using 2bit another A sTTI includes DMRS and another position sTTI comprising DMRS.

Table 1

2bits instruction	Whether having remaining sTTI includes DMRS and position
		00	No remaining sTTI includes DMRS
01	Second sTTI includes DMRS
		10	Third sTTI includes DMRS
11	4th sTTI includes DMRS

Submode 6-2: using 1bit instruction, whether there is or not another sTTI to include DMRS.It is preferred that when there is another sTTI to include The position sTTI is fixed on the last one in multiple sTTI of scheduling when DMRS.

The utility model has the advantages that DMRS expense can be saved, support that another sTTI includes DMRS with lesser instruction expense.It is applicable in In middle low speed mobile context and high-speed mobile scene.Such as: in addition to High-speed Circumstance, only single sTTI includes DMRS in the case of remaining Can, i.e. another sTTI includes that the main reason of DMRS is exactly to support high-speed mobile scene.

Mode 7: one of indicating predetermined justice DMRS pattern.Wherein predefined DMRS pattern is directed to the reality of more sTTI scheduling Scheduling quantity define respectively or predefined DMRS pattern and scheduling sTTI quantity be combined coding.

Predefined DMRS pattern defines citing for the actual schedule quantity of more sTTI scheduling respectively: as N=4, for The actual schedule quantity of at most N=4 sTTI scheduling is n=1 or 2 or 3 or 4.As shown in table 2 below, in different actual schedules When quantity sTTI, predefined DMRS pattern set defines respectively, according to the sTTI quantity of actual schedule, indicates actual schedule The position sTTI, i.e., one of predefined DMRS pattern set where DMRS when n sTTI.It should be noted that listed in table The pilot tone pattern of act is only for example, it is not limited to this.

Table 2

Note:R indicates that the sTTI has DMRS, D to indicate the sTTI without DMRS.By taking N=2 as an example, RD indicates first sTTI There is DMRS, second sTTI is without DMRS.Remaining is similar, repeats no more.

Predefined DMRS pattern and scheduling sTTI quantity are combined coding citings: as N=4, at most N=4 The actual schedule quantity of sTTI scheduling is n=1 or 2 or 3 or 4.As shown in table 3, in different actual schedule quantity sTTI, in advance The sTTI quantity for defining DMRS pattern set and scheduling is united, sTTI where the quantity and DMRS of instruction actual schedule sTTI Position, i.e., one of predefined DMRS pattern set.It should be noted that pilot tone pattern cited in table is only for example, It is not limited to this.

Table 3

The utility model has the advantages that DMRS expense can be saved, support that another sTTI includes DMRS with lesser instruction expense, it can be with Design is suitble to more sTTI pilot tone patterns of more sTTI scheduling.Suitable for middle low speed mobile context and high-speed mobile scene.And join Control overhead can further be saved by compiling in collaboration with code instruction.

In addition, sTTI scheduling more for DL, it is following to support that sPDSCH is included at least using sPDCCH unused resources mode One of mode:

Mode 1: when more sTTI are dispatched, only sPDSCH is supported to use the not used resource of sPDCCH in first sTTI.

Support sPDSCH that can only all be directed to current sTTI branch using the not used resource of sPDCCH in view of single sTTI is dispatched The function is held, can not predict sPDCCH resource service condition in subsequent sTTI, while each sPDSCH of more sTTI scheduling is Absolute coding.Therefore only first sTTI supports the function that can work.Therefore, when showing instruction, unused/used SCCE instructions field is effective only for the first sTTI of more sTTI.That is when more sTTI are dispatched, only sPDSCH is supported to make in first sTTI With the not used resource of sPDCCH.

Mode 2: when more sTTI are dispatched, the function is not supported.

I.e. unused sPDCCH resource is reused by the sPDSCH that single sTTI is dispatched.

Mode 3: more sTTI dispatch when, all sTTI all with identical unused sCCE resource is reused in first sTTI.

Existing limitation at this time are as follows: the sCCE index that the sPDCCH in subsequent sTTI in identical RB set is used cannot The sCCE index used greater than the sPDCCH of sTTI more in first sTTI scheduling.

Additional, when dispatching for more TTI, feedback timing is determined according to the position DMRS is implicit.The feedback timing is pair The timing of ACK/NACK is carried out in PDSCH or PUSCH.More sTTI scheduling are determined according to the position sTTI in more sTTI including DMRS The feedback timing of business includes at least one following manner:

Mode 1: when only having 1 TTI comprising DMRS in multiple TTI, it is assumed that corresponding feedback when first sTTI includes DMRS The timing of ACK/NACK is k1, it is assumed that non-first sTTI corresponds to feeding back ACK/NACK timing when including DMRS be k2, k1 < k2；

Mode 2: when have in multiple TTI greater than 1 TTI include DMRS when, it is assumed that the last one sTTI include DMRS when pair Answering feeding back ACK/NACK timing is k3, it is assumed that the last one sTTI corresponds to feeding back ACK/NACK timing when not including DMRS and is K4, k3 > k4；

By technical solution provided by this preferred embodiment, may be implemented to realize when more sTTI are dispatched and save DMRS Expense, with lesser instruction expense indicate support one or more sTTI include DMRS, be suitable for middle low speed mobile context with High-speed mobile scene.After saving the expense of pilot tone simultaneously, more resources can be used for data transmission, lifting system frequency spectrum effect Rate.

Preferred embodiment 2

Base station schedules terminals A transmits upstream data in multiple TTI, and the OFDM symbol number that the TTI includes is less, such as not More than 7 OFDM symbols.This preferred embodiment is illustrated with short TTI structure in LTE system, and but it is not limited to this.UL Short TTI frame structure is as shown in fig. 6, include 6 short TTI of UL (Up Link) in 1ms subframe.Pay attention to OFDM symbol here Number is since 0, i.e., OFDM has 14 in 1ms subframe, and serial number is #0 to #13.

When dispatching more sTTI transmission, maximum dispatches N number of sTTI transmission.It is N number of at this time to be continuously available for transmission sPUSCH's sTTI.It is preferred that N=2 or 3 or 4 or 6 or 8, but it is not limited only to this.When maximum scheduling N number of sTTI transmission has been determined, actual schedule Multiple sTTI transmission quantity be 1 to N number of sTTI.Wherein the method for determination of N value is predefined or high-level signaling configures Value.It is described, is not limited to that by taking N=4 as an example during being described below.

In the N=4 UL sTTI transmission of scheduling, the method for determination of the position DMRS is at least one of: being needed Illustrate, is illustrated although the present embodiment is transmitted as example with uplink, the method for determination of the position DMRS and not only Limitation is used for uplink, can be used for downlink.The present embodiment preferred pin unfixed scene in TTI to DMRS.

DMRS pattern when mode 1:DMRS pattern is dispatched with list sTTI indicates the mode of UL DMRS with list sTTI.At this time only Indicate that DMRS pattern, subsequent sTTI are not indicated in the first sTTI of scheduling.At this time restrictive condition be first sTTI in cannot Indicate pure D pattern and | R pattern, it is necessary to instruction the pattern containing R.

It should be added that UL DMRS pattern is as shown in table 4 when list sTTI is dispatched: the UL DMRS pattern for including is extremely Include less pattern listed in table 1, can also include other patterns.

UL DMRS position when 4 list sTTI of table is dispatched

It should be understood that " | " indicates the boundary of sTTI n in table 4.

The utility model has the advantages which is without designing structure when new pattern structure, i.e. pattern or list sTTI scheduling. Do not increase control overhead.Except the first, remaining is without DMRS by multiple UL sTTI of scheduling simultaneously.

DMRS pattern when mode 2:DMRS pattern is dispatched with list sTTI, bit field increase with list sTTI comprising DMRS STTI position instruction.Only instruction includes DMRS pattern in a sTTI of DMRS at this time, remaining sTTI is not indicated.This time limit Condition processed be instruction sTTI in cannot indicate pure D pattern and | R pattern, it is necessary to instruction the pattern containing R.

The utility model has the advantages which is without designing structure when new pattern structure, i.e. pattern or list sTTI scheduling. Support that flexibly instruction includes the position of DMRS.Simultaneously scheduling multiple UL sTTI only one include DMRS.

DMRS pattern when mode 3:DMRS pattern is dispatched with list sTTI, N times when bit field is list sTTI, each sTTI Independent instruction.Such as N=4, bit field is 4 times that DMRS position is indicated when list sTTI is dispatched.Actual schedule at this time The corresponding DMRS of each sTTI indicate.At this time most flexibly, expense is maximum.Such as n=2 sTTI of actual schedule, it is assumed that single The bit field of instruction UL DMRS position is 2bits when sTTI is dispatched, and more sTTI scheduling bits domain is 8bits at this time, this When again because actual schedule UL sTTI number be 2, then preceding 4 bits are effective in 8bits.In effective 4 bits UL DMRS position, rear 2 bits in first UL sTTI of preceding 2 bits instruction scheduling indicate the second of scheduling UL DMRS position in a sTTI.

The utility model has the advantages which is without designing new pattern structure, i.e. structure when pattern or list sTTI are dispatched, Flexibly instruction is supported with biggish control overhead simultaneously.

Mode 4: indicate whether carry DMRS and position in remaining sTTI other than first sTTI in N number of sTTI of scheduling It sets.Default first sTTI has DMRS always, indicates whether that another sTTI includes DMRS and another sTTI comprising DMRS Position and indicate in the sTTI character position where DMRS.Wherein indicate in a sTTI character position where DMRS with DMRS method for indicating position is identical when single sTTI is dispatched.

Mode 4 further include: submode 4-1 and submode 4-2, wherein submode 4-1: instruction is located at comprising DMRS except head It is located at 1 sTTI in remaining sTTI other than a sTTI and indicates character position where DMRS in the sTTI.Wherein indicate one DMRS method for indicating position is identical when character position is dispatched with list sTTI where DMRS in sTTI.Such as when N=4, such as the following table 1 institute Show and indicates whether another position sTTI of another sTTI comprising DMRS and comprising DMRS using 2bit.

Table 1

Submode 4-2: whether there is or not another sTTI comprising DMRS and to indicate character position where DMRS in the sTTI for instruction. It is preferred that the last one in multiple sTTI that the position sTTI is fixed on scheduling when there is another sTTI to include DMRS.Its middle finger Being shown with without another sTTI includes that it is preferable to use 1bit to be indicated by DMRS.Wherein indicate sign bit where DMRS in a sTTI It is identical to set DMRS method for indicating position when dispatching with list sTTI.

The utility model has the advantages that DMRS expense can be saved, support that another sTTI includes DMRS with lesser instruction expense.It is applicable in In middle low speed mobile context and high-speed mobile scene.

Mode 5: one of indicating predetermined justice DMRS pattern.Wherein predefined DMRS pattern is directed to the reality of more sTTI scheduling Scheduling quantity define respectively or predefined DMRS pattern and scheduling sTTI quantity be combined coding.

It predefines UL DMRS pattern when more sTTI are dispatched and determines specific pattern in more sTTI scheduling.Predefined company DMRS pattern when continuous 2,3 ..., N number of sTTI scheduling.As N=4, continuous 2 are predefined, the DMRS pattern of 3,4 sTTI scheduling.

When pattern is at continuous 2,3 ..., not unique N number of sTTI scheduled time division, without instruction

When pattern continuous 2,3 ..., N number of sTTI scheduled time division not there are many when, indicate one.

Predefined DMRS pattern defines citing for the actual schedule quantity of more sTTI scheduling respectively: as shown in table 5, N= 4, continuously dispatch n=1, predefined pilot tone pattern Candidate Set respectively when 2,3,4 sTTI.According to the sTTI number n continuously dispatched And then determine the meaning of 2bits instruction, indicate one of pattern.It should be noted that pilot tone pattern cited in table It is only for example, it is not limited to this.

Table 5

It should be understood that DR corresponds to DDR as 3OS, RD corresponds to RDD.By taking N=2 as an example, RD | DD indicates first STTI has DMRS and is located at first symbol in first sTTI, and second sTTI is without DMRS.Remaining is similar, repeats no more.

Predefined DMRS pattern and scheduling sTTI quantity are combined coding citings: as N=4, at most N=4 The actual schedule quantity of sTTI scheduling is n=1 or 2 or 3 or 4.As shown in table 6, in different actual schedule quantity sTTI, in advance The sTTI quantity for defining DMRS pattern set and scheduling is united, sTTI where the quantity and DMRS of instruction actual schedule sTTI Position, i.e., one of predefined DMRS pattern set.It should be noted that pilot tone pattern cited in table is only for example, It is not limited to this.

Table 6

The utility model has the advantages which control overhead is smaller.Need to design the DMRS pattern knot for multiple sTTI simultaneously Structure.And combined coding instruction can further save control overhead.

It by method provided by this preferred embodiment 2, may be implemented when more sTTI are dispatched, realize that saving DMRS opens Pin indicates to support that one or more sTTI includes DMRS with lesser instruction expense, to be suitable for middle low speed mobile context and height Fast mobile context.After saving the expense of pilot tone simultaneously, more resources can be used for data transmission, lifting system frequency spectrum effect Rate.

Preferred embodiment 3

Base station schedules terminals A transmits downlink data in single TTI or multiple TTI, the OFDM symbol number that the TTI includes compared with It is few, such as no more than 7 OFDM symbols.This preferred embodiment 3 is illustrated with short TTI structure in LTE system, but not It is limited to this.DL short TTI frame structure as shown in figure 5, in 1ms subframe include 6 short TTI of DL (Down Link), when When sPDSCH is configured as originating from OFDM symbol #1 or #3, Pattern1 is used；When sPDSCH is configured as from OFDM symbol # When 2 starting, Pattern2 is used.Notice that OFDM symbol number is since 0 here, i.e., OFDM there are 14 in 1ms subframe, and sequence is compiled Number be #0 to #13.

The DCI of scheduling list TTI or more TTI can be transmitted in any DL sTTI, when the DCI is located at DL sTTI#0, By PDCCH channel bearing；When the DCI is located at DL sTTI#1 to #5, by sPDCCH channel bearing.Alternatively, dispatching more sTTI's DCI can be transmitted in the sTTI of part, such as only be transmitted in DL sTTI#0, in another example only transmitting in DL sTTI#0,3.

CRS-based sPDCCH and DMRS-based sPDCCH, and two kinds of sPDCCH are supported in sTTI simultaneously All support centralized mapping and distributed mapping.For CRS-based sPDCCH, centralized mapping and distributed mapping are all propped up Hold frequency-first time-second sCCE-to-sREG mapping.For DMRS-based sPDCCH, concentrate Formula mapping and distributed mapping all support the time-first frequency-second sCCE-to-sREG mapping (time The mapping mode of first frequency second).And sREG number order are as follows: for CRS-based sPDCCH, sREG number order For frequency-first time-second (frequency first time second)；DMRS-based sPDCCH, sREG are compiled Number sequence is time-first frequency-second.

Therefore, under these conditions, it is thus necessary to determine that sCCE-to-sREG mapping concrete scheme and formula.

It should be noted that the RB set where CRS-based sPDCCH supports 1 or 2 in sTTI#1-5 OFDM symbol configures one by high-level signaling.OFDM number and institute possessed by RB set where DMRS-based sPDCCH It is identical in the OFDM symbol number that sTTI has, that is, support 2 or 3 OFDM symbols.

For DMRS-based sPDCCH, it is assumed that the RB set X of configuration_mThe PRB number for including is N_PRBPRBs, by height Layer signal deployment.The OFDM symbol number for including is N_OFDMOFDM symbols, the OFDM symbol number phase for including with place sTTI Together.A known sREG is 1RB in an OFDM symbol, i.e. 12 RE (including pilot tone), so sREG number is N_sREG= N_PRB·N_OFDM.In being described belowIndicate the sREG quantity that a sCCE includes.

When centralized mapping, the principle of satisfaction are as follows: with N_OFDMA sREG is one group and continuously forms a sCCE on frequency domain. The sREG#m that sCCE#n includes meets formulaOr the sREG number that sCCE#n includes isIts In

When distributed mapping, the principle of satisfaction are as follows: with N_OFDMA sREG is one group and waits spaced discretes composition one on frequency domain A sCCE.The sREG#m that sCCE#n includes meets formulaOr sCCE#n packet The sREG contained is numberedWhereinV=0,1 ..., N_OFDM- 1,

WithFor, work as N_PRBWhen=12PRBs, the schematic diagram of centralized mapping and distributed mapping As shown in Figure 7.

For CRS-based sPDCCH, it is assumed that the RB set X of configuration_mThe PRB number for including is N_PRBPRBs, by height Layer signal deployment.The OFDM symbol number for including is N_OFDMOFDM symbols, is configured by high-level signaling.A known sREG is 1RB in one OFDM symbol, i.e. 12 RE (including pilot tone), so sREG number is N_sREG=N_PRB·N_OFDM.In being described belowIndicate the sREG quantity that a sCCE includes.

When centralized mapping, the principle of satisfaction are as follows: in single symbol one group on frequency domain continuous sREG form one sCCE.The sREG#m that sCCE#n includes meets formulaOr the sREG number that sCCE#n includes isWherein,

When distributed mapping, the principle of satisfaction are as follows: the sREG group of one group of equal spaced discrete on frequency domain in single symbol At a sCCE.It is at least one of following formula that the sREG#m that sCCE#n includes, which meets formula:

Formula 1:

Formula 2:

Formula 3:

WhenWhen,WhenWhen,

Formula 4:

Formula 5:

Formula 6:Formula 7:

Formula 8:

Formula 9:

Or the sREG number that sCCE#n includes is at least one of following formula:

Formula 1:

Wherein,Formula 2:

Wherein,

Formula 3:

Wherein, n=0 ..., N_sCCE,p- 1 and N_sCCE,pIndicate the sCCE number in control channel resource set of blocks p.AndIndicate the sREG number for including in each sCCE.Indicate control channel resource block The sREG number for including in each OFDM symbol in set p.Since 1 sREG is 1 RB in 1 OFDM symbol, soThe RB number suitable for RB set of formula 3 is arbitrary value.Pay special attention to, the middle entry in formula 3 cannot be written asBecause not being for RB number in RB setIntegral multiple when, useIt will lead to one for should mapping on second symbol SCCE is still mapped in first symbol, and then causes the corresponding sREG of the sCCE of two different index identical, and then cause Ambiguity and misunderstanding, such as: N_PRB=18PRBs, N_OFDM=2,When, the corresponding sREG of n=4 sREG corresponding with n=0 It is identical, it is sREG#0,4,8,12.And in formula 3 be not in the ambiguity and misunderstanding, and n=0 corresponds to sREG#0, and 4,8,12, n =4 corresponding sREG#18,22,26,30.

Formula 4:

Wherein n=0 ..., N_sCCE,p- 1 and N_sCCE,pIndicate the sCCE number in control channel resource set of blocks p.AndIndicate the sREG number for including in each sCCE.Indicate control channel resource block The sREG number for including in each OFDM symbol in set p.Since 1 sREG is 1 RB in 1 OFDM symbol, soAnd formula 4 is only applicable to RB number in RB setIntegral multiple.

With N_OFDM=2,For, work as N_PRBWhen=16PRBs, the schematic diagram of centralized mapping and distributed mapping As shown in Figure 8.

Or when distributed mapping, the principle of satisfaction are as follows: the sREG composition chosen of numbered sREG equal intervals One sCCE.The sREG#m that sCCE#n includes meets formulaOrOr the sREG number that sCCE#n includes isOrWherein

Meanwhile in control channel unit CCE and when being mapped as centralized mapping of resource unit group REG, in single symbol In one group on frequency domain continuous REG form a CCE, and in order to avoid the REG resource that high polymerization grade uses is wrapped completely The REG resource that grade containing oligomerization uses causes different polymerization grades to misread, and is indicated using deinterleaving method or physical layer signaling poly- It closes grade or different scrambling is carried out to the information of different polymerization grades.Illustrate, when being used for sPDCCH channel, CCE is corresponded to SCCE, REG correspond to sREG.

When indicating polymerization grade L by physical layer signaling, i.e., the polymerization grade used is directly indicated in DCI, such as make With one of 2bits instruction L=1,2,4,8.To be used for client checks.It avoids misreading between different polymerization grades.

Carry out different scrambling by information to different polymerization grades: a kind of preferred method be for different polymerization grades, Different masks are scrambled to CRC, for example, L=1,2,4,8 scramble<0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 respectively>,<0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,1>、<0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0>、<0,0,0,0,0, 0,0,0,0,0,0,0,0,0,1,1>.Another preferred method be for DCI+CRC information or DCI+CRC encoded infonnation or Information is scrambled using scrambler sequence after rate-matched, such asWherein b (i) is information before scrambling, c (i) For scrambler sequence, (it is preferable to use the scrambling code sequences that the pseudo-random sequence of the Gold sequence for the use of length being 31 of LTE system generates Column), wherein the initial value of scrambler sequence distinguishes (such as c using different polymerization grades_init=L).

For using deinterleaving method: for a polymerization grade for the Candidate Set of L, the REG indexed sequential for being included is write Enter interleaver, reads according to column permutation pattern from interleaver, delete empty element after reading.Wherein, REG index is greater than fixed when X Justice is empty element.

Wherein L=1,2,4 or 8.

Wherein X=LM-1, M indicate the REG number for including in each CCE

The column permutation pattern is at least one of:

<0,4,8,12,16,20,24,28,1,5,9,13,17,21,25,29,2,6,10,14,18,22,26,30,3,7, 11,15,19,23,27,31>；

It is < 1,17,9,25,5,21,13,29,3,19,11,27,7 for column permutation pattern for M=4 with L=2, 23,15,31,0,16,8,24,4,20,12,28,2,18,10,26,6,22,14,30 > when, is sequentially written in REG#0-7, reads Afterwards, sky element<NULL>elements is considered when REG index is greater than 7, that is, after removing empty element, REG index is 1,5,3, 7,0,4,2,6, i.e., first control channel unit CCE#0 for being equivalent to this Candidate Set of L=2 at this time includes REG#1,5,3, 7, and CCE#0 when L=1 include #1,3,0,2, the REG resource that high polymerization grade uses at this time does not completely include oligomerization etc. The REG resource that grade uses not will cause different polymerization grades and misread.

Similar, it is < 0,4,8,12,16,20,24,28,1,5,9,13,17,21,25,29,2 for column permutation pattern, 6,10,14,18,22,26,30,3,7,11,15,19,23,27,31 > when, is sequentially written in REG#0-7, after reading, when REG index Sky element<NULL>elements is considered when greater than 7, that is, after removing empty element, REG index is 0,4,1,5,2,6,3,7, i.e., First control channel unit CCE#0 for being equivalent to this Candidate Set of L=2 at this time includes REG#0, and 4,1,5, and when L=1 CCE#0 include #0,1,2,3, the REG resource that high polymerization grade uses at this time does not completely include the REG that oligomerization grade uses Resource not will cause different polymerization grades and misread.

By the technical solution of above preferred embodiment 3, downlink control can be determined when single TTI is dispatched or more TTI are dispatched The corresponding resource unit group of control channel unit that channel processed uses allows terminal and base station accurately to know specific control money Source position, it is maximum that the distribution scheme implemented by this patent can make localized transmission and distributed transmission be respectively provided with Performance gain.

Preferred embodiment 4

Base station activation terminal A is 1 semi-persistent scheduling SPS transmission executing the period.It is preferred that the OFDM symbol that the TTI includes Number is less, such as no more than 7 OFDM symbols, it is not limited to this.The present embodiment is with long term evolution (Long-Term Evolution, referred to as LTE) short structure is illustrated in system, i.e., it is described can be understood as short TTI (short TTI, Referred to as sTTI), but it is not limited to this.DL short TTI frame structure is as shown in figure 5, include 6 DL in 1ms subframe (Down Link) short TTI uses Pattern1 when sPDSCH is configured as originating from OFDM symbol #1 or #3；Work as sPDSCH When being configured as originating from OFDM symbol #2, Pattern2 is used.Notice that OFDM symbol number is since 0 here, i.e. 1ms subframe Middle OFDM has 14, and serial number is #0 to #13.UL short TTI frame structure is as shown in fig. 6, include 6 in 1ms subframe UL (Up Link) short TTI.Notice that OFDM symbol number is since 0 here, i.e., OFDM there are 14 in 1ms subframe, serial number For #0 to #13.

The DCI of scheduling sTTI SPS can be transmitted in any DL sTTI, when the DCI is located at DL sTTI#0, by PDCCH channel bearing；When the DCI is located at DL sTTI#1 to #5, by sPDCCH channel bearing.Alternatively, scheduling sTTI SPS DCI can be transmitted in the sTTI of part, such as only be transmitted in DL sTTI#0, in another example only transmitting in DL sTTI#0,3.

When dispatching sTTI SPS transmission, the minimum period is 1 sTTI.If not considering the reduction of reference signal density, each STTI contains reference signal, if considering, reference signal density is reduced, and at least one sTTI contains with reference to letter in every N number of sTTI Number.Wherein the method for determination of N value is predefined or the value of high-level signaling configuration.It is preferred that N=2,3,6.

In the SPS downlink transmission that activation cycle is 1 sTTI, in every N number of DL sTTI transmission, demodulated reference signal (Demodulation Reference Signal, referred to as DMRS, it is understood that at the reference signal of above-described embodiment) institute Determination mode in position is at least one of: although it should be noted that this citing is transmitted as example with downlink is illustrated, But the method for determination of the position DMRS is not limited in for downlink, can be used for uplink.Preferred pin pair in this citing DMRS fixed scene of time-domain position in TTI.

Mode one: being predefined in per N number of Transmission Time Interval, only have reference signal in first Transmission Time Interval, Without reference signal in remaining Transmission Time Interval；At this time without additional instruction.Contain DMRS in the first PDSCH of activation SPS transmission, And only first sTTI contains DMRS in every N number of sTTI.

Mode two: whether pilot density is reduced in every N number of Transmission Time Interval by the instruction of 1bit signaling.The signaling It can be high-level signaling or physical layer signaling.Wherein, physical layer signaling reuse list sTTI scheduling when 1bit indicate DMRS whether there is or not. Wherein, pilot density is not reduced and refers to that N number of Transmission Time Interval all contains reference signal, is reduced pilot density and is referred to less than N number of biography Contain reference signal in defeated time interval.Reducing pilot density includes at least one of: only being had in first Transmission Time Interval Reference signal；There is reference signal in only first and the last one Transmission Time Interval；It is only first and relative to first offset x pass There are reference signal, x preferably 1,2, N/2, N-1, N in defeated time interval；

Mode three: the reference signal pattern in every N number of Transmission Time Interval is indicated by signaling；Such as shown in table 7. Note:R indicates to indicate not including RS in the sTTI comprising RS, D in the s.It the use of 1bit instruction pattern is RR or RD if N=2. It the use of 2bits instruction pattern is RRR, RDD, RDR or DRD if N=3.If N=6, RRRRRR, RDRDRD are indicated using 2bits, RDDRDD or RDRRDR.It is preferred that N=3 and slot boundary alignment.It is preferred that N=6 and subframe boundary alignment.

Table 7 indicates pilot tone pattern in per N number of s

N=2	N=3	N=6
			RR	RRR	RRRRRR
RD	RDD	RDRDRD
				RDR	RDDRDD
	DRD	RDRRDR

At this point, for there is no data transmission in first sTTI in wherein one group of N number of sTTI, and subsequent sTTI has data transmission When the solution how to use of reference signal include at least one of: (1) reference signal used receives to be the last The DMRS arrived；(2) DMRS is also sent when no data is sent；(3) it delays the sTTI to next comprising DMRS to send, at this time Only need to prolong the latter sTTI when for N=2, the latter sTTI is the sTTI comprising DMRS.

When activation cycle is the SPS uplink of 1 sTTI, in every N number of UL sTTI transmission, demodulated reference signal (Demodulation Reference Signal, referred to as DMRS, it is understood that at the reference signal of above-described embodiment) institute Determination mode in position is at least one of: although it should be noted that this citing is transmitted as example with uplink is illustrated, But the method for determination of the position DMRS is not limited in for uplink, can be used for downlink.Preferred pin pair in this citing The unfixed scene of DMRS time-domain position in TTI.

Mode one: being predefined in per N number of TTI, and N number of TTI all contains reference signal, and preferred embodiment is each transmission Only first OFDM symbol contains reference signal in time interval.This mode is not reduce reference signal density and predefine each Character position where reference signal in sTTI.

Mode two: it is predefined in per in N number of Transmission Time Interval, only there is reference signal and excellent in first Transmission Time Interval Selecting mode is that only first OFDM symbol contains reference signal in first Transmission Time Interval, without ginseng in remaining Transmission Time Interval Examine signal；At this time without additional instruction.Contain DMRS in the first PUSCH of activation SPS transmission, and only first in every N number of sTTI STTI contains DMRS.

Mode three: whether reference signal density is reduced in every N number of Transmission Time Interval by the instruction of 1bit signaling.It is described Signaling can be high-level signaling or physical layer signaling.Wherein, 2bits indicates DMRS when physical layer signaling reuses list sTTI scheduling position.Wherein, reference signal density is not reduced refers to that N number of Transmission Time Interval all contains reference signal and preferred embodiment is Only first OFDM symbol contains reference signal in each Transmission Time Interval, when reduction reference signal density refers to less than N number of transmission Between in interval containing reference signal and preferred embodiment is the only first OFDM symbol in the Transmission Time Interval containing reference signal Contain reference signal.Reducing reference signal density includes at least one of: only having reference signal in first Transmission Time Interval； There is reference signal in only first and the last one Transmission Time Interval；It is only first and relative between first x transmission time of offset There are reference signal, x preferably 1,2, N/2, N-1, N in；

Mode four: the reference signal pattern in every N number of Transmission Time Interval is indicated by signaling；Such as shown in table 8. Note:R indicates to indicate that the OFDM symbol does not include DMRS comprising DMRS, D in the OFDM symbol.Note: as 3OS, DR is corresponding DDR, RD correspond to RDD.The use of 2bits instruction pattern is RD if N=2 | RD, RD | DD, DR | DD or DD | RD.If N=3, use 2bits indicates that pattern is RD | RD | RD, RD | and DD | DD, RD | DD | RD or DD | RD | DD.If N=6, RD is indicated using 2bits | RD | RD | RD | RD | RD, RD | DD | RD | DD | RD | DD, RD | DD | DD | RD | DD | DD or DD | RD | DD | DD | RD | DD.It is preferred that N=3 With slot boundary alignment.It is preferred that N=6 and subframe boundary alignment.

Table 8 indicates reference signal pattern in per N number of sTTI

N=2	N=3	N=6
			RD\|RD	RD\|RD\|RD	RD\|RD\|RD\|RD\|RD\|RD
RD\|DD	RD\|DD\|DD	RD\|DD\|RD\|DD\|RD\|DD
			DR\|DD	RD\|DD\|RD	RD\|DD\|DD\|RD\|DD\|DD
DD\|RD	DD\|RD\|DD	DD\|RD\|DD\|DD\|RD\|DD

Note:|denotes the boundary of sTTI n

Preferably, TTI where the transmission of business for the first time of activation SPS transmission contains reference signal.

Preferably, when the signaling is physical layer signaling, only it is 1 TTI effectively in the period and is not used in SPS transmission activation Confirmation deactivates confirmation, and at other periods, the corresponding all bits of the signaling set 0 and transmit activation confirmation for SPS or go Activation confirmation；It or be 1 Transmission Time Interval meaning different from being respectively provided with when other periods in the period (is 1 in the period A Transmission Time Interval is effectively and for reference signal instruction in every N number of TTI, at other periods for single TTI with reference to letter Number instruction.).

By technical solution provided by this preferred embodiment, may be implemented to realize and save when sTTI SPS is dispatched DMRS expense indicates to support that one or more sTTI includes DMRS with lesser instruction expense, to be suitable for middle low speed moving field Scape and high-speed mobile scene.After saving the expense of reference signal simultaneously, more resources can be used for data transmission, promote system System spectrum efficiency.

Preferred embodiment 5

Semi-persistent scheduling SPS transmission of the base station configurating terminal A including the execution period includes 1 TTI.It is preferred that the TTI The OFDM symbol number for including is less, such as no more than 7 OFDM symbols, it is not limited to this.When with long-term in the present embodiment When short TTI structure is illustrated in evolution (Long-Term Evolution, referred to as LTE) system, i.e., the described TTI can To be interpreted as short TTI (short TTI, referred to as sTTI), but it is not limited to this, can be also used for 5G NR and newly eats dishes without rice or wine in system. It should be noted that 1slot includes 7 OFDM symbols, Shi Changwei 0.5ms when illustrating by taking LTE as an example in the present embodiment；With NR For when illustrating, 1slot includes 14 OFDM symbols, and in 15kHz subcarrier spacing, Shi Changwei 1ms.DL short TTI Frame structure is as shown in figure 5, include 6 short TTI of DL (Down Link) in 1ms subframe, when sPDSCH is configured as according with from OFDM When number #1 or #3 is originated, Pattern1 is used；When sPDSCH is configured as originating from OFDM symbol #2, Pattern2 is used. Notice that OFDM symbol number is since 0 here, i.e., OFDM there are 14 in 1ms subframe, and serial number is #0 to #13.UL short TTI frame structure is as shown in fig. 6, include 6 short TTI of UL (Up Link) in 1ms subframe.Notice that OFDM symbol is numbered from 0 here Start, i.e., OFDM there are 14 in 1ms subframe, and serial number is #0 to #13.

Scene 1: the DCI of scheduling activation sTTI SPS can be transmitted in any DL sTTI, when the DCI is located at DL When sTTI#0, by PDCCH channel bearing；When the DCI is located at DL sTTI#1 to #5, by sPDCCH channel bearing.Pass through at this time It is 2/3os or 1-slot that RRC, which configures sTTI length, configures the sTTI SPS period by RRC, is respectively configured.Or pass through RRC combined coding configures sTTI length and sTTI SPS period, i.e., to point out to correspond to simultaneously when the configuration SPS period is 1sTTI STTI length, such as shown in table 9, such as instruction state 0 and 1 all indicates that the SPS period is 1sTTI, but corresponding sTTI length It is different.Such as example in NR shown in table 10, joint instructions business duration (time domain length) and SPS period.Pay attention to table 9, in table 10 Combined coding instruction is an example, and state therein is only illustrated, but not limited to this.Os is OFDM in the present embodiment The abbreviation of Symbol, i.e. OFDM symbol.

9 combined coding of table indicates sTTI SPS period and sTTI length

10 combined coding of table indicates SPS period and business duration

Scene 2: the DCI of scheduling activation sTTI SPS can be transmitted in the sTTI of part, such as only be passed in DL sTTI#0 It is defeated.Or only first mini-slot can be with transmitting and scheduling sTTI SPS's in slot (containing 14 OFDM symbols) in NR DCI or only once control channel trigger chance.

For only transmitting in sTTI#0, DCI is carried by PDCCH at this time.Pass through when sTTI SPS period and offset When RRC is configured, sTTI length and sTTI SPS period and deviating can be respectively configured or combined coding at this time.

When being respectively configured, configuring sTTI length by RRC is 2/3os or 1-slot, configures sTTI SPS week by RRC Phase and offset, such as shown in table 11, it should be noted that when being greater than 1ms in the period, no matter the period is how many, and offset only needs to examine Consider the offset within the scope of 1ms subframe, configuration when indicating such as table 11 for 2/3os, configuration when table 12 is indicated to 1-slot；Table 13 indicate the configuration for the configuration in NR when business when a length of 2os, when table 14 is indicated to 7os.In conclusion in a kind of determination STTI length or business duration when, for every kind of period migration value value quantity are as follows: when the SPS period be less than 1ms when, deviant Value number is the number for including 1sTTI or 1 business duration in the SPS period；When being greater than 1ms in the SPS period, deviant value number Mesh is the number in 1ms comprising 1sTTI or 1 business duration；

Table 11 indicates sTTI SPS period and offset

Table 12 indicates sTTI SPS period and offset

Table 13 indicates SPS period and offset

Table 14 indicates SPS period and offset

When combined coding configuration, by RRC configure sTTI length be 2/3os or 1-slot and sTTI SPS period and Offset, such as shown in table 15.Example in NR as shown in table 16, business duration is by taking 2os and 7os as an example.It should be noted that when week No matter period and sTTI length are how many when phase is greater than 1ms, deviate and only need to consider the offset within the scope of 1ms subframe.To sum up institute It states, for every kind of period migration value value quantity are as follows: when being less than 1ms in the SPS period, deviant value number is to wrap in the SPS period Number containing 1sTTI or 1 business duration；When being greater than 1ms in the SPS period, deviant value number is that 1 subframe includes The number of 1sTTI or 1 business duration；

Table 15 indicates sTTI SPS period and offset and sTTI length

Table 16 indicates SPS period and offset and business duration

When being configured by RRC in the sTTI SPS period, sTTI length and SPS offset are indicated by DCI combined coding at this time. In LTE sTTI, as shown in table 17.In NR, as shown in table 18.Value is only illustrated in table, it is not limited to this.

Table 17 indicates sTTI length and SPS offset

Instruction index	STTI length and SPS offset
		0	2/3os and offset 0sTTI
1	2/3os and offset 1sTTI
		2	2/3os and offset 2sTTI
3	2/3os and offset 3sTTI
		4	2/3os and offset 4sTTI
5	2/3os and offset 5sTTI
		6	1slot and offset 0sTTI
7	1slot and offset 1sTTI

Table 18 indicates business duration and SPS offset

Scene 3: not activating DCI triggering SPS transmission, i.e. SPS transmission is configured by RRC completely, also referred to as exempts to dispatch at this time Transmission, i.e. grant-free transmission.At this time the SPS period, offset, business time domain length can be respectively configured or combined coding.? Scape TI3ime55555555555555555555555555555555555555555555555555 5555555555555555555 55555555555555555555555555555555555555555555555555555555555555555555555555555 55555555555555555555555555555555555555555555555555555555555555555555555555555 55555555555555555

When being respectively configured, by RRC signaling configuration service duration, SPS period and offset are configured by RRC signaling.When Length can be at least one of 2os, 4os, 7os.Principle are as follows: in the sTTI length or business duration of a kind of determination, for every Kind period migration value value quantity is the number for including 1sTTI or 1 business duration in the SPS period, is configured by taking 7os as an example at this time SPS period and offset are as shown in table 19.Or principle are as follows: in the sTTI length or business duration of a kind of determination, for every kind Period migration value value quantity is the number less than or equal to the SPS period comprising 1sTTI or 1 business duration, is with 7os at this time Example configuration SPS period and offset are as shown in table 20.Note that value is only illustrated in table, it is not limited to this.

Table 19 indicates SPS period and offset

Instruction index I_sps	The SPS period	Offset
			0	1 business duration	I_sps
1-2	1ms	I_sps-1
			3-6	2ms	I_sps-3
7-12	3ms	I_sps-7
			...	...	...

Table 20 indicates SPS period and offset

Instruction index I_sps	The SPS period	Offset
			0	1 business duration	I_sps
1-2	1ms	I_sps-1
			3-4	2ms	I_sps-3
5-6	3ms	I_sps-5
			...	...	...

When combined coding configuration, pass through RRC signaling configuration service duration, SPS period and offset.At this time with business duration Comprising being illustrated for 2os and 7os, it is not limited to this.Principle are as follows: be for every kind of period migration value value quantity The SPS period includes the number of 1sTTI or 1 business duration, at this time as shown in table 21.Or principle are as follows: inclined for every kind of period Shifting value value quantity is the number less than or equal to the SPS period comprising 1sTTI or 1 business duration, at this time as shown in table 22.Note It anticipates, value is only illustrated in table, it is not limited to this.

Table 21 indicates SPS period and offset and business duration

Table 22 indicates SPS period and offset and business duration

By technical solution provided by this preferred embodiment, realize that short business duration SPS is passed in sTTI SPS or NR When defeated, SPS period, offset, the determination of business duration can be flexibly realized in several ways, realize physical layer signaling expense section It saves or high-level signaling expense is saved.

Embodiment 9

The embodiments of the present invention also provide a kind of storage medium, which includes the program of storage, wherein above-mentioned Program executes method described in any of the above embodiments when running.

Optionally, in the present embodiment, above-mentioned storage medium can be set to store the journey for executing following steps Sequence code:

S1 exists at least one TTI with reference to letter through predetermined manner instruction in N number of Transmission Time Interval of scheduling Number, wherein N is positive integer.

Optionally, in the present embodiment, above-mentioned storage medium can include but is not limited to: USB flash disk, read-only memory (Read- Only Memory, referred to as ROM), it is random access memory (Random Access Memory, referred to as RAM), mobile hard The various media that can store program code such as disk, magnetic or disk.

The embodiments of the present invention also provide a kind of processor, the processor is for running program, wherein program operation Step in Shi Zhihang any of the above-described method.

Optionally, in the present embodiment, above procedure is for executing following steps:

Optionally, the specific example in the present embodiment can be with reference to described in above-described embodiment and optional embodiment Example, details are not described herein for the present embodiment.

Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.

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.It is all within principle of the invention, it is made it is any modification, etc. With replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims

1. a kind of determination method of reference signal characterized by comprising

Through predetermined manner instruction in N number of Transmission Time Interval of scheduling, there is reference at least one Transmission Time Interval Signal, wherein N is positive integer.

2. the method according to claim 1, wherein in the position of the reference signal in Transmission Time Interval When fixed, through predetermined manner instruction in N number of Transmission Time Interval, exist at least one Transmission Time Interval with reference to letter Number, including at least one of:

Mode one: in N number of Transmission Time Interval, only there are reference signals in first Transmission Time Interval, when remaining is transmitted Between interval in without reference signal；

Mode two: it indicates in N number of Transmission Time Interval of scheduling containing a Transmission Time Interval where reference signal；

Mode three: indicate whether each Transmission Time Interval contains reference signal in N number of Transmission Time Interval of scheduling；

Mode four: indicating in N number of Transmission Time Interval of scheduling containing the at most K Transmission Time Interval where reference signal, Wherein, K is the positive integer less than N；

Mode five: in the N number of Transmission Time Interval for indicating scheduling, other than first Transmission Time Interval between remaining transmission time Reference signal whether is carried in and carries the position of reference signal, wherein first Transmission Time Interval has reference signal always, Indicate whether that another Transmission Time Interval includes reference signal and another Transmission Time Interval comprising the reference signal Position；

Mode six: by indicating reference signal pattern in N number of Transmission Time Interval, wherein

One group of pattern when the reference signal pattern is schduled transmission times interval quantity x,

Or the reference signal pattern carries schduled transmission times interval quantity information simultaneously,

3. according to the method described in claim 2, it is characterized in that, in N number of Transmission Time Interval when 2 or 2 transmission Between be spaced above there are when reference signal, the type of the reference signal is identical.

4. according to the method described in claim 2, it is characterized in that, in N number of Transmission Time Interval when 2 or 2 transmission Between be spaced above there are when reference signal, when Transmission Time Interval type difference, the type of the reference signal is identical.

5. according to the method described in claim 2, it is characterized in that, the mode five is realized one of in the following manner:

Indicate in N number of Transmission Time Interval, in addition to first Transmission Time Interval in remaining Transmission Time Interval 1 comprising reference The position of the Transmission Time Interval of signal；

It is indicated in N number of Transmission Time Interval other than first Transmission Time Interval using 1bit, if there are another transmission Time interval includes reference signal.

6. according to the method described in claim 3, it is characterized in that, the method also includes:

When there is another Transmission Time Interval to include reference signal, which is fixed on N number of biography of scheduling The last one in defeated time interval.

7. the method according to claim 1, wherein supporting the shared letter of physical down in downlink transmission process Road PDSCH includes at least one of following situations using the not used resource of physical downlink control channel PDCCH:

In N number of Transmission Time Interval, only first Transmission Time Interval supports PDSCH to use the not used resource of PDCCH；

In N > 1, PDSCH is not supported to use the not used resource of PDCCH；

In N=1, PDSCH is supported to use the not used resource of PDCCH；

In N number of Transmission Time Interval, all Transmission Time Intervals, which reuse identical PDCCH with first Transmission Time Interval, not to be made Resource.

8. the method according to claim 2 or 6, which is characterized in that the data feedback carried in N number of Transmission Time Interval The timing of ACK/NACK is determined according to reference signal position, determines that method includes at least one following manner:

Mode 1: when only having 1 Transmission Time Interval comprising reference signal in multiple Transmission Time Intervals, in first transmission Between interval comprising reference signal when correspond to that feeding back ACK/NACK timing is k1 and non-first Transmission Time Interval includes to refer to Corresponded to when signal feeding back ACK/NACK timing be k2 when, meet k1 < k2；

Mode 2: when there is greater than 1 Transmission Time Interval to include reference signal in multiple Transmission Time Intervals, at the last one Transmission Time Interval corresponds to feeding back ACK/NACK timing when including reference signal be k3, and the last one Transmission Time Interval is not Comprising corresponded to when reference signal feeding back ACK/NACK timing be k4 when, meet k3 > k4；

Wherein, k1, k2, k3, k4 are positive number.

9. the method according to claim 1, wherein the reference signal position in Transmission Time Interval not When fixed, through predetermined manner instruction in N number of Transmission Time Interval, there are reference signals at least one Transmission Time Interval Including at least one of:

Mode one: the reference signal pattern by indicating first Transmission Time Interval in N number of Transmission Time Interval, wherein described Reference signal pattern when reference signal pattern is dispatched with single Transmission Time Interval is consistent；

Mode two: pass through a Transmission Time Interval in the N number of Transmission Time Interval of instruction and the reference in the Transmission Time Interval Signal pattern, wherein the reference signal pattern when reference signal pattern is dispatched with single Transmission Time Interval is consistent；

Mode three: the reference signal pattern by indicating at most K Transmission Time Interval in N number of Transmission Time Interval, wherein should Reference signal pattern when reference signal pattern is dispatched with single Transmission Time Interval is consistent, and wherein K is the positive integer less than N；

Mode four: the reference signal pattern by indicating each Transmission Time Interval in N number of Transmission Time Interval, wherein the ginseng The reference signal pattern examined when signal pattern is dispatched with single Transmission Time Interval is consistent；

Mode five: in the N number of Transmission Time Interval for indicating scheduling, other than first Transmission Time Interval between remaining transmission time Reference signal whether is carried in and carries the position of reference signal, wherein first Transmission Time Interval has reference signal always, Indicate whether that another Transmission Time Interval includes reference signal and another Transmission Time Interval comprising the reference signal Position and instruction reference signal position in the Transmission Time Interval；

Mode six: by indicating the reference signal pattern in N number of Transmission Time Interval, wherein

10. according to the method described in claim 9, it is characterized in that, in N number of Transmission Time Interval when 2 or 2 transmission Between be spaced above there are when reference signal, the type of the reference signal is identical.

11. according to the method described in claim 9, it is characterized in that, in N number of Transmission Time Interval when 2 or 2 transmission Between be spaced above there are when reference signal, when Transmission Time Interval type difference, the type of the reference signal is identical.

12. according to the method described in claim 9, it is characterized in that, the mode five is realized one of in the following manner:

Indicate in N number of Transmission Time Interval, in addition to first Transmission Time Interval in remaining Transmission Time Interval 1 comprising reference The position and instruction reference signal position in the Transmission Time Interval of the Transmission Time Interval of signal；

It indicates in N number of Transmission Time Interval other than first Transmission Time Interval, if there are another Transmission Time Intervals Include reference signal and instruction reference signal position in the Transmission Time Interval.

13. according to the method for claim 12, which is characterized in that the method also includes:

14. a kind of determination method of reference signal characterized by comprising

It is determined in every N number of Transmission Time Interval in semi-persistent scheduling SPS transmission by predetermined manner, when at least one is transmitted Between interval in there are reference signals, wherein N is positive integer.

15. according to the method for claim 14, which is characterized in that the time-domain position of the reference signal is between transmission time Every middle fixation, the predetermined manner includes at least following one:

Mode two: whether reference signal density is reduced in every N number of Transmission Time Interval by signaling instruction, wherein do not reduce Reference signal density refers to that N number of Transmission Time Interval all contains reference signal, when reduction reference signal density refers to less than N number of transmission Between interval in contain reference signal；

16. according to the method for claim 15, which is characterized in that it is close to reduce reference signal at least through one of following manner Degree: only there is reference signal in first Transmission Time Interval；There is reference signal in only first and the last one Transmission Time Interval；Only It is first and relative to having reference signal in first x Transmission Time Interval of offset, wherein x is the integer for being derived from set [0, N].

17. according to the method for claim 14, which is characterized in that the time-domain position of the reference signal is between transmission time It is not fixed in, the predetermined manner includes at least following one:

Mode two: it is predefined in per N number of Transmission Time Interval, only contains reference signal in first Transmission Time Interval；

Mode three: whether reference signal density is reduced in every N number of Transmission Time Interval by signaling instruction, wherein do not reduce Reference signal density refers to that N number of Transmission Time Interval all contains reference signal, when reduction reference signal density refers to less than N number of transmission Between interval in contain reference signal；

18. according to the method for claim 17, which is characterized in that in every N number of Transmission Time Interval, contain reference signal Transmission Time Interval in only contain reference signal in first orthogonal frequency division multiplex OFDM symbol.

19. according to the method for claim 17, which is characterized in that

Reference signal density is reduced at least through one of following manner: only having reference signal in first Transmission Time Interval；It is only first There is reference signal in a and the last one Transmission Time Interval；It is only first and relative in first x Transmission Time Interval of offset There is reference signal, wherein x is the integer for being derived from set [0, N].

20. the described in any item methods of 5-19 according to claim 1, which is characterized in that the transmission of business for the first time of activation SPS transmission The Transmission Time Interval at place contains reference signal.

21. the described in any item methods of 5-19 according to claim 1, which is characterized in that when the signaling is physical layer signaling, only It is that 1 Transmission Time Interval is effective in the period, at other periods, the corresponding all bits of the signaling are set 0 and transmitted for SPS Activation confirmation deactivates confirmation；Or the period be 1 Transmission Time Interval from other periods when be respectively provided with different contain Justice, wherein be 1 Transmission Time Interval effectively in the period and be used for reference signal instruction in per N number of Transmission Time Interval, at it It is indicated when his for single Transmission Time Interval reference signal in period.

22. the described in any item methods of 4-19 according to claim 1, which is characterized in that the method is applied to semi-persistent scheduling SPS the and SPS period is 1 Transmission Time Interval.

23. a kind of determination method of semi-persistent scheduling SPS transmission time characterized by comprising

Indicate SPS period, deviant and tti length by high-level signaling, wherein tti length with SPS period, deviant combined coding；Or SPS period and deviant are indicated by high-level signaling, while SPS being activated to transmit Physical layer signaling is located at limited transmission time；Or the SPS period is notified by high-level signaling, while activating SPS transmitting physical layer Signaling is located at limited transmission time and combined coding indicates deviant and tti length；

By indicating that obtained following one determines SPS transmission time: SPS period, deviant and tti length； SPS period and deviant；Deviant and tti length.

24. according to the method for claim 23, which is characterized in that the limited transmission time be include it is following at least it One: being only located at physical downlink control channel PDCCH, be only located at short transmission time interval #0 and/or short transmission time interval #3, only The control resource collection and the resource collection configured in time slot is located in time slot in preceding P symbol, is only located in time slot and matches First control resource collection in the time domain in multiple control resource collections set, wherein P value includes: 1,2,3,7.

25. according to the method for claim 23, which is characterized in that combined coding includes at least: the SPS period and offset Unified instruction, then being for the deviant value quantity for every kind of period includes 1 short transmission time interval or 1 in the SPS period The number of business duration；Or for the deviant value quantity for every kind of period be less than or equal to the SPS period include it is 1 short The number of Transmission Time Interval or 1 business duration.

26. a kind of determination method of control channel unit characterized by comprising

Selected part resource unit group forms a control channel unit in N number of resource unit group, at least through following manner One of composition one control channel unit:

For the physical downlink control channel PDCCH based on demodulated reference signal, in control channel unit CCE and resource unit group When being mapped as distributed mapping of REG at least meets following principle: with M REG be one group on frequency domain at equal intervals or isolation One CCE of composition is dissipated, wherein M is the REG quantity that K RB includes in a Transmission Time Interval, wherein K is positive integer, and N is Positive integer；

For the physical downlink control channel PDCCH based on cell reference signals, in control channel unit CCE and resource unit group When being mapped as distributed mapping of REG at least meets following principle: in single symbol one group on frequency domain at equal intervals or interval Discrete REG forms a CCE.

27. according to the method for claim 26, which is characterized in that the method also includes:

In control channel unit CCE and when being mapped as centralized mapping of resource unit group REG, in single symbol one group in frequency Continuous REG forms a CCE on domain, and indicates polymerization grade using deinterleaving method or physical layer signaling, or to different polymerizations The information of grade carries out different scrambling.

28. according to the method for claim 26, which is characterized in that it is described in single symbol one group on frequency domain at equal intervals Or the REG of spaced discrete forms a CCE, when being used for short Physical Downlink Control Channel sPDCCH, forms the sREG rope of sCCE#n Draw including at least one following manner:

Mode one:

Mode two:

29. according to the method for claim 27, which is characterized in that the deinterleaving method includes: for a polymerization grade For the Candidate Set of L, interleaver is written in the REG indexed sequential that the Candidate Set is included, and is read according to column permutation pattern from interleaver Out, empty element to be deleted after reading, wherein REG index is defined as sky element when being greater than X,

Wherein, L=1,2,4 or 8；

Wherein X=LM-1, M indicate the REG number for including in each CCE.

30. according to the method for claim 29, which is characterized in that the column permutation pattern includes at least one of:

<1,17,9,25,5,21,13,29,3,19,11,27,7,23,15,31,0,16,8,24,4,20,12,28,2,18,10, 26,6,22,14,30>；

<0,4,8,12,16,20,24,28,1,5,9,13,17,21,25,29,2,6,10,14,18,22,26,30,3,7,11, 15,19,23,27,31>。

31. a kind of determining device of reference signal characterized by comprising

First indicating module, for being indicated in N number of Transmission Time Interval of scheduling by predetermined manner, when at least one is transmitted Between interval in there are reference signals, wherein N is positive integer.

32. a kind of determining device of control channel unit characterized by comprising

Module is chosen, for one control channel unit of selected part resource unit group composition in N number of resource unit group, at least One of in the following manner one control channel unit of composition:

33. a kind of determining device of reference signal characterized by comprising

First determining module, for determining every N number of Transmission Time Interval in semi-persistent scheduling SPS transmission by predetermined manner In, there are reference signals at least one Transmission Time Interval, wherein N is positive integer.

34. a kind of determining device of semi-persistent scheduling SPS transmission time, comprising:

Indicating module, for indicating SPS period, deviant and tti length connection by high-level signaling combined coding Compile in collaboration with code；Or the physical layer signaling that SPS period and deviant are indicated by high-level signaling, while SPS being activated to transmit be located at by Limit transmission time；Or the SPS period is notified by high-level signaling, while SPS transmitting physical layer signaling being activated to be located at limited transmission Moment, and combined coding instruction deviant and tti length；

Second determining module, for determining SPS transmission time by the obtained following one of instruction: the SPS period, deviant and Tti length；SPS period and deviant；Deviant and tti length.

35. a kind of storage medium, which is characterized in that the storage medium includes the program of storage, wherein when described program is run Method described in any one of perform claim requirement 1 to 13 or the described in any item methods of claim 14-22 or right are wanted Ask the described in any item methods of 23-25 or the described in any item methods of claim 26-30.