CN110536459A - A kind of repetitive transmission method and device, communication equipment and storage medium - Google Patents
A kind of repetitive transmission method and device, communication equipment and storage medium Download PDFInfo
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- CN110536459A CN110536459A CN201810911009.6A CN201810911009A CN110536459A CN 110536459 A CN110536459 A CN 110536459A CN 201810911009 A CN201810911009 A CN 201810911009A CN 110536459 A CN110536459 A CN 110536459A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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Abstract
The embodiment of the present invention provides a kind of repetitive transmission method and device, communication equipment and storage medium, the Traffic Channel for repeating transmission is dispatched by physical downlink control channel PDCCH, since processing is optimized to scheduling fixed time interval, it is set as the value of negative, so that while using transmission promotion reliability is repeated, guarantee low time delay laser propagation effect, realizes low time delay high reliable communication demand.In addition, passing through the setting of scheduling timing interval negative, the repetition transmitting and scheduling for indicating PDSCH in advance is realized, terminal processes time delay is reduced, guarantees low time delay highly-reliable transmission.
Description
Technical field
The present invention relates to terminal display control field more particularly to a kind of repetitive transmission method and device, communication equipment and
Storage medium.
Background technique
With fourth generation mobile communication technology (4G, the 4th Generation mobile communication
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) continuous development.
Especially in the system that 4G and 5G is communicated, mobile broadband is constantly expanding increase, while also improving it
The reliability of transmission shortens the time delay of transmission, realizes the features such as magnanimity connection.In order to support ultrahigh reliability and ultralow time delay to pass
Defeated realization, in the related art particular by with compared with short transmission time interval, with repeat transmission system come realize low time delay,
Highly reliable business transmission, for can be single or several OFDM (Orthogonal compared with short transmission time interval
Frequency Division Multiplexing, orthogonal frequency division multiplexing) symbol.
Data transmission based on scheduling mode repeats transmission and is possible to while being applied to down control channel (Physical
Downlink Control channel, PDCCH) and downlink traffic channel (Physical Downlink Shared
Channel, PDSCH), and in current implementation, the original transmission moment for repeating transmission for down control channel indicates
It is difficult to flexible control instructions and control repeats the time interval and time delay of transmission process, so as to cause whole time delay mistake
Greatly, it affects user experience.
Summary of the invention
A kind of repetitive transmission method machine device, communication equipment and storage medium provided in an embodiment of the present invention, mainly solve
The technical issues of be: solve the problems, such as in current repeat transmission system repeat transmission interval time delay it is longer.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of repetitive transmission method, this method comprises:
By physical downlink control channel PDCCH dispatch repeat transmission Traffic Channel PDSCH, wherein the PDCCH and
Scheduling timing interval is divided between the Traffic Channel, the value at the scheduling timing interval includes whole less than or equal to zero
Number.
In order to solve the above technical problems, repeating transmitting device the embodiment of the invention also provides a kind of, comprising:
Scheduler module, for dispatching the Traffic Channel for repeating transmission by physical downlink control channel PDCCH, wherein described
It is divided into scheduling timing interval between PDCCH and the Traffic Channel, the value at the scheduling timing interval includes being less than etc.
In zero integer.
In order to solve the above technical problems, the embodiment of the invention also provides a kind of communication equipment, including processor, memory
And communication bus；
Communication bus is for realizing the communication connection between processor and memory；
Processor is for executing one or more program stored in memory, to realize repetitive transmission method as above
The step of.
In order to solve the above technical problems, the embodiment of the invention also provides a kind of computer readable storage medium, computer
Readable storage medium storing program for executing is stored with one or more program, one or more program can be held by one or more processor
Row, the step of to realize repetitive transmission method as above.
The beneficial effects of the present invention are:
Repetitive transmission method machine device, communication equipment and the storage medium provided according to embodiments of the present invention, passes through basis
The physical downlink control channel PDCCH of transmission determines that scheduling repeats the scheduling timing interval of the Traffic Channel of transmission, due to exchanging
Processing is optimized in degree fixed time interval, is set as the value of negative, so that promoting reliability using repetition transmission
Meanwhile guaranteeing low time delay laser propagation effect, realize low time delay high reliable communication demand.In addition, passing through scheduling timing interval negative
Setting realizes the repetition transmitting and scheduling for indicating Traffic Channel in advance, reduces terminal processes time delay, guarantees the highly reliable biography of low time delay
It is defeated.
Other features of the invention and corresponding beneficial effect are described in the aft section of specification, and should be managed
Solution, at least partly beneficial effect is apparent from from the record in description of the invention.
Detailed description of the invention
Fig. 1 is the flow diagram of the repetitive transmission method of the embodiment of the present invention one；
Fig. 2 is the structural schematic diagram of the repetition transmitting device of the embodiment of the present invention two；
Fig. 3 is the structural schematic diagram of the communication equipment of the embodiment of the present invention three；
Fig. 4 is that the only PDSCH of the embodiment of the present invention four repeats the instruction schematic diagram at the scheduling timing interval transmitted；
Fig. 5 is that the only PDSCH of the embodiment of the present invention four repeats the another instruction schematic diagram at the scheduling timing interval transmitted；
Fig. 6 is the instruction signal that the PDCCH and PDSCH of the embodiment of the present invention five repeat the scheduling timing interval of transmission
Figure；
Fig. 7 is that the another instruction at the scheduling timing interval that the PDCCH and PDSCH of the embodiment of the present invention five are repeatedly transmitted is shown
It is intended to；
Fig. 8 is that the PDCCH of the embodiment of the present invention six repeats the instruction schematic diagram of the starting time slots transmitted；
Fig. 9 is that the PDCCH of the embodiment of the present invention six repeats the another instruction schematic diagram of the starting time slots transmitted.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below by specific embodiment knot
Attached drawing is closed to be described in further detail the embodiment of the present invention.It should be appreciated that specific embodiment described herein is only used to
It explains the present invention, is not intended to limit the present invention.
Embodiment one:
Reality is difficult to for the original transmission moment for repeating transmission for down control channel in current repetition transmission plan
The reception that existing prior notice seizes the downlink traffic channel of instruction and scheduling needs to consider bad guarantor on the basis of repeating to transmit
The problem of demonstrate,proving low time delay transmission demand, repetitive transmission method provided in this embodiment passes through physical downlink control channel PDCCH tune
Degree repeats the Traffic Channel of transmission, wherein scheduling timing interval is divided between the PDCCH and the Traffic Channel, it is described
Scheduling timing interval includes the integer less than or equal to zero, and the Traffic Channel can be physical down Traffic Channel PDSCH, can also
To be physical uplink Traffic Channel PUSCH, following example illustrates rising for PDCCH Repetition by taking PDSCH as an example
The setting control of beginning moment (being scheduling timing interval), but it is not limited to PDSCH, this kind of method applies also for PUSCH.In
It in practical application, to scheme set forth above, can specifically be accomplished by the following way, referring specifically to shown in Fig. 1, this method has
Body may include:
S101: the Traffic Channel for repeating transmission is dispatched by physical downlink control channel PDCCH, wherein PDCCH and described
Scheduling timing interval K0 is divided between Traffic Channel.
Wherein, Traffic Channel here includes physical down Traffic Channel PDSCH and physical uplink Traffic Channel PUSCH；
The scheduling timing interval can be understood as the end position of PDCCH to the interval between the initial position PDSCH, and value is preferred
Selection is less than null integer value, in practical applications, can also take the integer greater than 0, in other words scheduling timing
The value of interval K0 can have certain range selection, and specific X≤K0≤Y, wherein X is negative integer or 0, and Y is 0 or just whole
Number.
In existing repeat transmission system, the forward setting that the setting of the scheduling timing interval K0 of the step can be opposite,
It may be 1 for current scheduling timing interval K0 setting, then PDCCH is in TTI#n tune such as in existing transmission mode
The PDSCH transmission of degree instruction K0=1, then PDSCH is located at TTI#n+1 and is transmitted, and the K0 in the present embodiment will be set as
More in advance, to realize that scheduling repeats the instruction in advance of transmitting physical downlink traffic channel PDSCH, to reduce repetition transmission
Brought time delay.
In practical applications, after step slol can further include a step, be exactly according to scheduling timing interval with
And the number of repetition of Traffic Channel receives Traffic Channel.
In the present embodiment, the scheduling timing interval is indicated by the PDCCH of single transmission, can also be by repeating to pass
Defeated PDCCH instruction.
In the present embodiment, the PDSCH physical downlink control channel PDCCH for repeating to be transmitted through single transmission is dispatched
When realization, the value at scheduling timing interval is set as negative, such setting can issue in advance the scheduling of PDSCH, at this moment
K0 will do it the parsing of single and obtain the original transmission moment that corresponding PDSCH repeats transmission, in other words rising where K0
Initial point is exactly the position of PDSCH.
Such setting is so that scheduling timing interval K0 [X, 0] can make appropriate choice and set in a negative section
It sets, at this moment regardless of number of repetition R_PDSCH is to be configured or indicated by DCI, scheduling timing interval K0 by high-level signaling
In the negative section of value.
In one embodiment, the value at the scheduling timing interval includes negative, i.e. the model in the first lower limit value to zero
Enclose and select a value as the scheduling timing interval in section, wherein the method for determination of first lower limit value be it is following it
One:
After the number of repetition of PDSCH is subtracted a constant, its inverse value is taken, obtains first lower limit value, it is described normal
Number is 1；First lower limit value is determined by the terminal capacity report or radio resource control RRC configuration.
In some embodiments, can be directly using first lower limit value as the value of scheduling timing interval K0, it can also
A value as K0 is selected from section to be, such as mode identified below:
The number of repetition R_PDSCH of the PDSCH pre-set is obtained first, and number of repetition R_PDSCH is also referred to as
TTI aggregation quantity；
Then after number of repetition being subtracted a constant, its inverse value is taken, obtains the range of the value at scheduling timing interval
First lower limit value in section, constant 1 are X=- (R_PDSCH-1)；
Finally select a value as scheduling timing interval in the range intervals of the first lower limit value to zero.
In some embodiments, the number of repetition of the physical down Traffic Channel PDSCH can specifically be believed by high level
It enables to configure, can also be indicated by Downlink Control Information DCI, even can both be configured, but according to requiring to select
Select one of them.
In practical applications, when the ability of the caching time slot of terminal is limited, scheduling timing interval K0 is according to terminal
Situation is configured, when terminal capability is limited and number of repetition is directly to be indicated by Downlink Control Information DCI, the tune
Spending in the negative section of fixed time interval K0 value can be specifically arranged in the following manner:
The terminal capacity report UE Capability for obtaining terminal is reported or radio resource control RRC configuration；
By the range intervals of the value of terminal capacity report or radio resource control RRC configuration configuration schedules fixed time interval
Lower limit value；
Select a value as scheduling timing interval in the range intervals of lower limit value to zero.
In the present embodiment, if the Traffic Channel is physical down Traffic Channel PDSCH, and pass through the object of repetition transmission
When managing down control channel PDCCH instruction, the value at the scheduling timing interval includes negative；In other words for PDSCH weight
When being transmitted through the physical downlink control channel PDCCH scheduling realization of repetition transmission again, the value at scheduling timing interval is set
For negative, and such setting can issue in advance the scheduling of PDSCH, the weight that K0 at this moment needs accumulative frequency to reach PDCCH
Again it after counting, is being parsed to obtain the original transmission moment of corresponding PDSCH repetition transmission again, i other words K0 completes PDCCH
Number of repetition after, K0 instruction be exactly PDSCH repeat transmit last time position.
In the present embodiment, the value at the scheduling timing interval includes negative, i.e. the range in the second lower limit value to zero
Select a value as the scheduling timing interval in section, wherein second lower limit value is determined as following one:
After the number of repetition of PDCCH is subtracted a constant, its inverse value is taken, obtains second lower limit value, it is described normal
Number is 1；
Second lower limit value is determined by the terminal capacity report or radio resource control RRC configuration.
The value at the scheduling timing interval is indicated by the physical downlink control channel PDCCH；Or it is predetermined
The value and the value of justice are as follows: after the number of repetition of PDCCH is subtracted a constant, take its inverse value, obtain described second
Lower limit value, the constant are 1；Predefined value and the value are as follows: pass through the terminal capacity report or radio resource control
RRC configuration processed determines.It will be understood that first lower limit value is the value of scheduling timing interval K0, naturally it is also possible to be from the
Two lower limit values select a value as K0 into 0 section.
Wherein, the number of repetition method of determination of the PDSCH includes at least one of: being configured by high-level signaling and logical
Cross Downlink Control Information DCI instruction.
In other words regardless of number of repetition is to be configured or indicated by DCI, the scheduling timing interval by high-level signaling
It is arranged in the negative section of K0 value especially by following manner:
Obtain the second number of repetition R_ that transmission is repeated by the physical downlink control channel PDCCH that high-level signaling configures
PDCCH；And R_PDCCH can also be configured by other means, such as the statistics number of certain time；
After second number of repetition is subtracted a constant, its inverse value is taken, obtains the range of the value at scheduling timing interval
The lower limit value in section, constant 1 are X=- (R_PDCCH-1)；
Select a value as scheduling timing interval in the range intervals of lower limit value to zero.
In some embodiments, when the ability of the caching time slot of terminal is limited, scheduling timing interval K0 is according to terminal
The case where configured, when terminal capability is limited and number of repetition be directly indicated by Downlink Control Information DCI when, should
It can specifically be arranged in the following manner in the negative section of scheduling timing interval K0 value:
Obtain terminal capacity report or the radio resource control RRC configuration of terminal；
By the range intervals of the value of terminal capacity report or radio resource control RRC configuration configuration schedules fixed time interval
Second number of repetition R_PDCCH of lower limit value and physical downlink control channel PDCCH；
Select a value as scheduling timing interval in the range intervals of lower limit value to zero.
In the present embodiment, in the transmitting physical downlink channel control PDCCH the step of, further includes: from more primary signs
When at least one selecting to repeat the starting of transmission as physical downlink control channel PDCCH in multiple first symbols
It carves.
If physical downlink control channel PDCCH is when repeating to transmit, from more primary sign multiple first
In symbols choose at least one mode determine physical downlink control channel PDCCH repeat transmission initial time include with
At least one of under type:
Mode 1, initial time satisfaction are equal to 0 to cycle T modulus after subtracting deviant, and wherein cycle T is physics
The multiple of down control channel PDCCH number of repetition.
In practical applications, mode 1 is implemented as indexing according to the time slot in radio framesTime slot
Significant instant quantityAnd its corresponding index noccasion, the moment deviant ooccasion, Physical Downlink Control Channel
The number of repetition r of PDCCHmaxIt is formula under conditions of the remainder calculated with the cycle T of radio frames is equal to 0:
WhereinMeet
Wherein, nfIndicate wireless frame index,The slot that 1 radio frames when indicating for subcarrier spacing u include
Number,The slot index in 1 radio frames when indicating for subcarrier spacing u, kp,sAnd op,sIndicate that PDCCH monitors the period
And deviant,Indicate that the quantity of multiple first symbols in slot is also referred to as occasion quantity,
noccasionIndicate occasion index in slot, ooccasionIndicate the deviant of occasion in cycle T, rmaxIndicate high-rise letter
Enable the PDCCH maximum number of repetitions or single number of repetition value of configuration, G indicates constant, remarks: the single repeated in transmission passes
1 occasion of defeated correspondence, then selects at least one moment as Physical Downlink Control Channel from the significant instant of time slot
PDCCH repeats the initial time of transmission.
Mode 2, the initial time, which meet, is equal to cycle T multiplied by shift ratio coefficient to cycle T modulus, wherein cycle T
For the multiple of physical downlink control channel PDCCH number of repetition.
It in practical applications, is to be indexed according to the time slot in radio frames for the specific implementation of mode 2Time slot has
Imitate moment quantityAnd its corresponding index noccasion, physical downlink control channel PDCCH number of repetition rmaxWith it is wireless
The remainder that the cycle T of frame calculates, the condition equal with the maximum integer of the shift ratio at moment and the product of the cycle T of radio frames
Under, it is formula:
WhereinMeet
Wherein, nfIndicate wireless frame index,The slot that 1 radio frames when indicating for subcarrier spacing u include
Number,The slot index in 1 radio frames when indicating for subcarrier spacing u, kp,sAnd op,sIndicate that PDCCH monitors the period
And deviant,Indicate that the quantity of multiple first symbols in slot is also referred to as occasion quantity,
noccasionIndicate occasion index in slot, αoffsetIndicate the shift ratio of occasion in cycle T, rmaxIndicate high-rise letter
The PDCCH maximum number of repetitions of configuration is enabled, G indicates constant.Remarks: repeating corresponding 1 occasion of single transmission in transmission,
Then at least one moment is selected to repeat the starting of transmission as physical downlink control channel PDCCH from the significant instant of time slot
Moment.
When mode 3, the starting transmitted by physical downlink control channel PDCCH repetition in the first message bit pattern instruction time slot
It carves.
In practical applications, mode 3 is implemented as through the institute in setting the first message bit pattern instruction time slot
There is significant instant, at least one determined from the significant instant that the first message bit pattern indicates is as Physical Downlink Control Channel
PDCCH repeats the initial time of transmission.
At least one primary sign is combined into no more than 2 in mode 4, the more primary signs of selectionxKind primary sign set, leads to
Crossing x bit instruction, one of them repeats the initial time of transmission as the PDCCH, and x is positive integer.
For example, only indicating that the position of PDCCH Repetition starting occasion is 3 kinds of startings wherein as x=2
Occasion set one of, that is, be located at all occasion { 0 }, It is a, wherein NoccasionIndicate number of first symbols
Quantity.
Mode 5, the initial time meet noccasionmodrmax=0, wherein noccasion=0,1 ..., Noccasion- 1,
rmaxIndicate the PDCCH maximum number of repetitions or single number of repetition value of high-level signaling configuration.
In this present embodiment, if the physical downlink control channel PDCCH iterative transfer times are single value, institute
It states at least one selection from more primary signs and determines that the physical downlink control channel PDCCH repeats the initial time packet of transmission
It includes: all moment determined by more primary signs.
Repetitive transmission method provided in this embodiment, by being repeated to scheduling fixed time interval optimization, and optional dynamic
Number instruction realizes that low time delay height can so that guaranteeing low time delay laser propagation effect while using transmission promotion reliability is repeated
By communication requirement.Furthermore it is possible to repeatedly transmit the initial time used in the determination of multiple initial times, avoid in control channel weight
Again enhance additional blind examination complexity while counting blind examination, reduce terminal processes time delay, guarantee low time delay highly-reliable transmission.
Embodiment two:
It is shown in Figure 2, a kind of repetition transmitting device is present embodiments provided, which includes: scheduler module 21, wherein
Scheduler module 21 be used for by Physical Downlink Control Channel scheduling repeat transmission Traffic Channel, wherein PDCCH with
The scheduling timing interval being divided between the Traffic Channel, the value at the scheduling timing interval include whole less than or equal to zero
Number.
Wherein, the Traffic Channel includes physical down Traffic Channel PDSCH and physical uplink Traffic Channel PUSCH, when
When for physical down Traffic Channel PDSCH, degree fixed time interval is indicated by the PDCCH of single transmission, can also pass through repetition
The PDCCH of transmission is indicated.
In some embodiments, scheduler module 21 is used to be transmitted through list in the repetition of physical down Traffic Channel PDSCH
When the physical downlink control channel PDCCH scheduling of secondary transmission, the value at scheduling timing interval is set as negative.
The value at the scheduling timing interval is in the range intervals of the second lower limit value to zero, wherein second lower limit
Value is determined as following one:
After the number of repetition of PDCCH is subtracted a constant, its inverse value is taken, obtains second lower limit value, it is described normal
Number is 1；
Second lower limit value is determined by the terminal capacity report or radio resource control RRC configuration.
The value at the scheduling timing interval are as follows: indicated by the PDCCH；Predefined value and the value are as follows:
After the number of repetition of PDCCH is subtracted a constant, its inverse value is taken, obtains second lower limit value, the constant is 1；In advance
The value of definition and the value are as follows: determined by the terminal capacity report or radio resource control RRC configuration.It even can be with
It is one of above-mentioned three kinds of modes.
If summarizing the Traffic Channel in some embodiments is physical down Traffic Channel PDSCH, and by repeating to transmit
PDCCH instruction when, the value at the scheduling timing interval includes negative.
The value at the scheduling timing interval is in the range intervals of the second lower limit value to zero, wherein second lower limit
Value is determined as following one:
After the number of repetition of PDCCH is subtracted a constant, its inverse value is taken, obtains second lower limit value, it is described normal
Number is 1；
Second lower limit value is determined by the terminal capacity report or radio resource control RRC configuration.
Similarly the value at the scheduling timing interval can be to be indicated by the PDCCH；Predefined value and described
Value are as follows: after the number of repetition of PDCCH is subtracted a constant, take its inverse value, obtain second lower limit value, the constant
It is 1；Predefined value and the value are as follows: configured by the terminal capacity report or radio resource control RRC in determining
At least one.
In practical applications, when number of repetition is to be configured by high-level signaling, scheduler module 21 is used for number of repetition
After subtracting a constant, its inverse value is taken, the first lower limit value of the range intervals of the value at scheduling timing interval is obtained, first
Select a value as scheduling timing interval, constant 1 in lower limit value to zero range intervals.
In some embodiments, when number of repetition is to be indicated by Downlink Control Information DCI, scheduler module 21 is for obtaining
Take terminal capacity report or the radio resource control RRC configuration of terminal；Terminal capacity report or radio resource control RRC are configured
Second lower limit value of the range intervals of the value of configuration schedules fixed time interval, selects in the range intervals of the second lower limit value to zero
One value is used as scheduling timing interval.
In some embodiments, scheduler module 21 is used to be transmitted through weight in the repetition of physical down Traffic Channel PDSCH
When the physical downlink control channel PDCCH scheduling transmitted again, the value at scheduling timing interval is set as negative.
In some embodiments, when number of repetition is configured by high-level signaling, scheduler module 21 is used for number of repetition
After subtracting a constant, its inverse value is taken, the third lower limit value of the range intervals of the value at scheduling timing interval is obtained, in third
Select a value as scheduling timing interval, constant 1 in lower limit value to zero range intervals.
In some embodiments, when number of repetition is to be indicated by Downlink Control Information DCI, scheduler module 21 is for obtaining
Take terminal capacity report or the radio resource control RRC configuration of terminal；Terminal capacity report or radio resource control RRC are configured
4th lower limit value of the range intervals of the value of configuration schedules fixed time interval and the repetition time of physical downlink control channel PDCCH
Number；Select a value as scheduling timing interval in range intervals of the 4th lower limit value to zero.
In some embodiments, scheduler module 21 is also used to select from more primary sign multiple first symbols
The mode at least one taken determines that physical downlink control channel PDCCH repeats the initial time of transmission.
In some embodiments, scheduler module 21 is used to pass through when physical downlink control channel PDCCH is to repeat to transmit
Following at least one mode determines that physical downlink control channel PDCCH repeats the initial time of transmission:
Mode 1, initial time satisfaction are equal to 0 to cycle T modulus after subtracting deviant, and wherein cycle T is physics
The multiple of down control channel PDCCH number of repetition.
In practical applications, mode 1 is implemented as indexing according to the time slot in radio framesTime slot
Significant instant quantityAnd its corresponding index noccasion, the moment deviant ooccasion, Physical Downlink Control Channel
The number of repetition r of PDCCHmaxIt is formula under conditions of the remainder calculated with the cycle T of radio frames is equal to 0:
WhereinMeet
Wherein, nfIndicate wireless frame index,The slot that 1 radio frames when indicating for subcarrier spacing u include
Number,The slot index in 1 radio frames when indicating for subcarrier spacing u, kp,sAnd op,sIndicate that PDCCH monitors the period
And deviant,Indicate that the quantity of multiple first symbols in slot is also referred to as occasion quantity,
noccasionIndicate occasion index in slot, ooccasionIndicate the deviant of occasion in cycle T, rmaxIndicate high-rise letter
Enable the PDCCH maximum number of repetitions or single number of repetition value of configuration, G indicates constant, remarks: the single repeated in transmission passes
1 occasion of defeated correspondence, then selects at least one moment as Physical Downlink Control Channel from the significant instant of time slot
PDCCH repeats the initial time of transmission.
Mode 2, the initial time, which meet, is equal to cycle T multiplied by shift ratio coefficient to cycle T modulus, wherein cycle T
For the multiple of physical downlink control channel PDCCH number of repetition.
It in practical applications, is to be indexed according to the time slot in radio frames for the specific implementation of mode 2Time slot has
Imitate moment quantityAnd its corresponding index noccasion, physical downlink control channel PDCCH number of repetition rmaxAnd nothing
The remainder that the cycle T of line frame calculates, the condition equal with the maximum integer of the shift ratio at moment and the product of the cycle T of radio frames
Under, it is formula:
WhereinMeet
Wherein, nfIndicate wireless frame index,The slot that 1 radio frames when indicating for subcarrier spacing u include
Number,The slot index in 1 radio frames when indicating for subcarrier spacing u, kp,sAnd op,sIndicate that PDCCH monitors the period
And deviant,Indicate that the quantity of multiple first symbols in slot is also referred to as occasion quantity,
noccasionIndicate occasion index in slot, αoffsetIndicate the shift ratio of occasion in cycle T, rmaxIndicate high-rise letter
The PDCCH maximum number of repetitions of configuration is enabled, G indicates constant.Remarks: repeating corresponding 1 occasion of single transmission in transmission,
Then at least one moment is selected to repeat the starting of transmission as physical downlink control channel PDCCH from the significant instant of time slot
Moment.
When mode 3, the starting transmitted by physical downlink control channel PDCCH repetition in the first message bit pattern instruction time slot
It carves.
In practical applications, mode 3 is implemented as through the institute in setting the first message bit pattern instruction time slot
There is significant instant, at least one determined from the significant instant that the first message bit pattern indicates is as Physical Downlink Control Channel
PDCCH repeats the initial time of transmission；
At least one primary sign is combined into no more than 2 in mode 4, the more primary signs of selectionxKind primary sign set, leads to
Crossing x bit instruction, one of them repeats the initial time of transmission as the PDCCH, and x is positive integer.
For example, only indicating that the position of PDCCH Repetition starting occasion is 3 kinds of startings wherein as x=2
Occasion set one of, that is, be located at all occasion { 0 }, It is a, wherein NoccasionIndicate number of first symbols
Quantity.
Mode 5, the initial time meet noccasionmodrmax=0, wherein noccasion=0,1 ..., Noccasion- 1,
rmaxIndicate the PDCCH maximum number of repetitions or single number of repetition value of high-level signaling configuration.
In some embodiments, scheduler module 21 is used for the selection when physical downlink control channel PDCCH is single transmission
All significant instants in time slot are used as physical downlink control channel PDCCH to repeat the initial time transmitted.
In some embodiments, the service transmission device further includes receiving module, realizes that scheduling is fixed in scheduler module 21
When interval after, it is also necessary to by receiving module according to the number of repetition of scheduling timing interval and Traffic Channel receive business letter
Road.
A kind of repetition transmitting device provided in this embodiment, it is dynamic by the optimization to scheduling fixed time interval, and optionally
State number of repetition instruction, so that guaranteeing low time delay laser propagation effect, when realizing low while using transmission promotion reliability is repeated
Prolong high reliable communication demand, the usage experience of the user also guaranteed.
Embodiment three:
A kind of communication equipment is present embodiments provided, it is shown in Figure 3, including processor 301, memory 302 and logical
Believe bus 303；
Communication bus 303 is for realizing the communication connection between processor 301 and memory 302；
Processor 301 is for executing one or more program stored in memory 302, to perform the steps of
The Traffic Channel for repeating transmission is dispatched by physical downlink control channel PDCCH, wherein the PDCCH and the industry
Scheduling timing interval is divided between business channel, the value at the scheduling timing interval is the integer value less than or equal to zero.
In the present embodiment, the processor 301 is also used to the repetition time according to scheduling timing interval and Traffic Channel
Number receives Traffic Channel.
Wherein, Traffic Channel here includes physical down Traffic Channel PDSCH and physical uplink Traffic Channel PUSCH；
The scheduling timing interval can be understood as the end position of PDCCH to the interval between the initial position PDSCH, and value is preferred
Selection is less than null integer value, in practical applications, can also take the integer greater than 0, in other words scheduling timing
The value of interval K0 can have certain range selection, and specific X≤K0≤Y, wherein X is negative integer or 0, and Y is 0 or just whole
Number.
In the present embodiment, the PDSCH physical downlink control channel PDCCH for repeating to be transmitted through single transmission is dispatched
When realization, the value at scheduling timing interval is set as negative, such setting can issue in advance the scheduling of PDSCH, at this moment
K0 will do it the parsing of single and obtain the original transmission moment that corresponding PDSCH repeats transmission, in other words rising where K0
Initial point is exactly the position of PDSCH.
It is such to be arranged so that processor 301 is when executing configuration scheduling fixed time interval K0, by a negative section
Interior [X, 0] makes appropriate choice setting, at this moment regardless of number of repetition R_PDSCH is still to be passed through by high-level signaling configuration
DCI is indicated, is arranged in the negative section of the scheduling timing interval K0 value especially by following manner:
The number of repetition R_PDSCH of the PDSCH pre-set is obtained, number of repetition R_PDSCH is also referred to as TTI
Aggregation quantity；
After number of repetition is subtracted a constant, its inverse value is taken, obtains the range intervals of the value at scheduling timing interval
The first lower limit value, constant 1 is X=- (R_PDSCH-1)；
Select a value as scheduling timing interval in the range intervals of the first lower limit value to zero.
If PDSCH repeats the physical downlink control channel PDCCH scheduling realization for being transmitted through repetition transmission, scheduling is fixed
When interval K0 setting then with physical downlink control channel PDCCH repeat transmission number of repetition R_PDCCH be configured, specifically
Steps are as follows:
Obtain the second number of repetition R_ that transmission is repeated by the physical downlink control channel PDCCH that high-level signaling configures
PDCCH；And R_PDCCH can also be configured by other means, such as the statistics number of certain time；
After second number of repetition is subtracted a constant, its inverse value is taken, obtains the range of the value at scheduling timing interval
The third lower limit value in section, constant 1 are X=- (R_PDCCH-1)；
Select a value as scheduling timing interval in the range intervals of third lower limit value to zero.
In some embodiments, when the ability of the caching time slot of terminal is limited, scheduling timing interval K0 is according to terminal
The case where configured, when terminal capability is limited and number of repetition be directly indicated by Downlink Control Information DCI when, should
It can specifically be arranged in the following manner in the negative section of scheduling timing interval K0 value:
The terminal capacity report UE Capability for obtaining terminal is reported or radio resource control RRC configuration；
By the range intervals of the value of terminal capacity report or radio resource control RRC configuration configuration schedules fixed time interval
Second lower limit value；
Select a value as scheduling timing interval in the range intervals of the second lower limit value to zero.
Either,
Obtain terminal capacity report or the radio resource control RRC configuration of terminal；
By the range intervals of the value of terminal capacity report or radio resource control RRC configuration configuration schedules fixed time interval
Second number of repetition R_PDCCH of the 4th lower limit value and physical downlink control channel PDCCH；
Select a value as scheduling timing interval in range intervals of the 4th lower limit value to zero.
Corresponding, the embodiment of the invention also provides a kind of computer readable storage medium, the computer-readable storages
Medium is included in for storing information (such as computer readable instructions, data structure, computer program module or other data)
Any method or technique in the volatibility implemented or non-volatile, removable or non-removable medium.It is computer-readable to deposit
Storage media includes but is not limited to RAM (Random Access Memory, random access memory), ROM (Read-Only
Memory, read-only memory), EEPROM (Electrically Erasable Programmable read only
Memory, band Electrically Erasable Programmable Read-Only Memory), flash memory or other memory technologies, CD-ROM (Compact Disc
Read-Only Memory, compact disc read-only memory), digital versatile disc (DVD) or other optical disc storages, magnetic holder, tape, magnetic
Disk storage or other magnetic memory apparatus or can be used for storing desired information and can be accessed by a computer it is any its
His medium.
Computer readable storage medium in the present embodiment can be used for storing one or more computer program, storage
One or more computer program can be executed by processor, with realize such as the repetitive transmission method in above-described embodiment one
At least one step.
The present embodiment additionally provides a kind of computer program, which can be distributed in computer-readable medium
On, by can computing device execute, to realize at least one step of the repetitive transmission method in above-described embodiment one, and
In some cases, at least one shown or described step can be executed using the described sequence of above-described embodiment is different from
Suddenly.
The present embodiment additionally provides a kind of computer program product, including computer readable device, the computer-readable dress
It sets and is stored with computer program as shown above, the computer readable device may include calculating as shown above in the present embodiment
Machine readable storage medium storing program for executing.
To sum up, communication equipment provided in an embodiment of the present invention, by according under single transmission or the physics of repetition transmission
Row control channel PDCCH determines that scheduling repeats the scheduling timing interval of the physical down Traffic Channel PDSCH of transmission, due to right
Processing is optimized in scheduling timing interval, is set as the value of negative, so that promoting reliability using repetition transmission
While, guarantee low time delay laser propagation effect, realizes low time delay high reliable communication demand.In addition, passing through scheduling timing interval negative
Setting, realize in advance indicate PDSCH repetition transmitting and scheduling, reduce terminal processes time delay, guarantee the highly reliable biography of low time delay
It is defeated.
Example IV:
Method provided in this embodiment is described in detail below with reference to the specific number of repetition for repeating transmission:
When only carrying out physical down Traffic Channel PDSCH repetition transmission to communication equipment, base station passes through independently transmitted object
Reason down control channel PDCCH (Physical Downlink Control channel, Physical Downlink Control Channel) scheduling refers to
Show physical down Traffic Channel PDSCH, while also indicating PDSCH original transmission moment, i.e. scheduling timing interval K0.When transmitting
Between be spaced TTI for be described, TTI includes but is not limited at least one of: slot time slot, mini-slot mini-slot,
Subframe subframe.Wherein in 5G system, slot indicates the time domain unit comprising 14 OFDM symbols (particularly if it is expansion
Cyclic prefix is opened up, then includes 12 OFDM symbols), mini-slot indicates the time domain unit comprising 2 or 4 or 7 OFDM symbols,
The determined time domain unit of mini-slot pattern either marked off in slot.Subframe indicate the time on for 1ms when
Domain unit.Such as: PDCCH dispatches the PDSCH transmission of instruction K0=1 in TTI#n, then PDSCH is located at TTI#n+1 and is transmitted.
When PDSCH repeats to transmit, in order to avoid introducing additional time delay, while guaranteeing the high reliability of PDCCH and not introducing PDCCH
It repeats to transmit, solution includes following one:
Method 1:PDSCH number of repetition R_PDSCH (or referred to as TTI aggregation quantity) is matched by high-level signaling
It sets, the independently transmitted PDCCH scheduling instruction PDSCH original transmission moment, i.e. scheduling timing interval K0, K0 value includes at least small
In 0 negative value, preferably X≤K0 < 0.Method of determination for X is X=- (R_PDSCH-1), and wherein R_PDSCH is indicated
The number of repetition (PDSCH, which repeats transmission, can be based on slot granularity or mini-slot granularity) of PDSCH, as shown in figure 4,
PDSCH iterative transfer times R=4 can send the base station PDCCH 1 time or send repeatedly, and terminal successfully is detected scheduling
PDSCH repeats the PDCCH of transmission, then the PDCCH of the identical PDSCH of scheduling successfully detected after ignoring.
Method 2:PDSCH number of repetition R_PDSCH (or referred to as TTI aggregation quantity) is by DCI instruction, solely
The vertical PDCCH scheduling instruction PDSCH original transmission moment sent, i.e. scheduling timing interval K0, X≤K0 < 0, X depend on terminal energy
Power UE Capability report or RRC configuration, as shown in figure 5, terminal only supports or RRC configure X=-2 when, i.e., UE at this time is most
The data of 2 slot, the PDSCH iterative transfer times R that each PDCCH is independently dispatched at this time are dynamically referred to by DCI before more cachings
Show.The base station PDCCH can be sent 1 time or sent repeatedly, the PDSCH that terminal successfully is detected scheduling repeats transmission
PDCCH, the then PDCCH of the identical PDSCH of scheduling successfully detected after ignoring.
A kind of repetitive transmission method through this embodiment, by scheduling fixed time interval optimization, and optional dynamic
Number of repetition instruction, so that guaranteeing low time delay laser propagation effect while using transmission promotion reliability is repeated, realizing low time delay
High reliable communication demand.
Embodiment five:
Physical downlink control channel PDCCH is carried out for communication equipment simultaneously and physical down Traffic Channel PDSCH is repeated
When transmission, base station passes through the physical downlink control channel PDCCH scheduling instruction physics downlink traffic channel of the repetition transmission sent
PDSCH, while also indicating PDSCH original transmission moment, i.e. scheduling timing interval K0.It is carried out by taking Transmission Time Interval TTI as an example
Description, TTI includes but is not limited at least one of: slot time slot, mini-slot mini-slot, subframe subframe.Wherein exist
In 5G system, slot indicates that the time domain unit comprising 14 OFDM symbols (then includes 12 particularly if it is extended cyclic prefix
A OFDM symbol), mini-slot indicates the time domain unit comprising 2 or 4 or 7 OFDM symbols, or marks off in slot
The determined time domain unit of mini-slot pattern.Subframe indicates the time domain unit on the time for 1ms.Such as: PDCCH exists
The PDSCH transmission of TTI#n scheduling instruction K0=1, then PDSCH is located at TTI#n+1 and is transmitted.When PDSCH repeats to transmit, it is
It avoids introducing additional time delay, while guaranteeing the high reliability of PDCCH and introducing PDCCH to repeat to transmit, solution includes
Following one:
Method 1:PDSCH number of repetition R_PDSCH (or referred to as TTI aggregation quantity) is matched by high-level signaling
It sets, repeats the PDCCH scheduling instruction PDSCH original transmission moment of transmission, i.e. scheduling timing interval K0, K0 value includes at least small
In 0 negative value, preferably X≤K0 < 0.Method of determination for X is X=- (R_PDCCH-1), and wherein R_PDCCH is indicated
(PDCCH repeats transmission can be based on slot granularity or mini-slot granularity or coreset the number of repetition of PDCCH
Duration granularity), as shown in fig. 6, PDCCH iterative transfer times R_PDCCH=2, the initial time of scheduling instruction PDSCH,
That is scheduling timing interval K0=-1 receives PDSCH according to the PDSCH number of repetition of high-level signaling configuration later.
Method 2:PDSCH number of repetition R_PDSCH (or referred to as TTI aggregation quantity) is indicated by DCI, heavy
The PDCCH scheduling instruction PDSCH original transmission moment transmitted again, i.e. scheduling timing interval K0, X≤K0 < 0, X depend on terminal UE
Capability report or RRC configuration, as shown in fig. 7, terminal only supports or RRC configure X=-2 when, i.e., UE is at most cached at this time
The data of 2 slot before, PDCCH iterative transfer times R_PDCCH=4, the initial time of scheduling instruction PDSCH are dispatched
Fixed time interval K0=-2 receives PDSCH according to the PDSCH number of repetition of DCI dynamic instruction later.
A kind of repetitive transmission method through this embodiment, by scheduling fixed time interval optimization, and optional dynamic
Number of repetition instruction, so that guaranteeing low time delay laser propagation effect while using transmission promotion reliability is repeated, realizing low time delay
High reliable communication demand.
Embodiment six:
Communication equipment is repeated to transmit in example in the PDCCH of embodiment five, when PDCCH Repetition repeats to pass
When defeated, the method that determines PDCCH Repetition initial time occasion or primary sign symbol are as follows: PDCCH
Being determined by choosing at least one of more primary sign multiple first symbols for Repetition initial time, is selected
Taking principle is at least one of following methods: wherein each first symbol is referred to as an initial time occasion.
Method 1: initial time meets formula 1
Formula 1:
WhereinMeet
Wherein, nfIndicate wireless frame index,The slot that 1 radio frames when indicating for subcarrier spacing u include
Number,The slot index in 1 radio frames when indicating for subcarrier spacing u, kp,sAnd op,sIndicate that PDCCH monitors the period
And deviant,Indicate that the quantity of multiple first symbols in slot is also referred to as occasion quantity,
noccasionIndicate occasion index in slot, ooccasionIndicate the deviant of occasion in cycle T, rmaxIndicate high-rise letter
The PDCCH maximum number of repetitions or single number of repetition value of configuration are enabled, G indicates constant.Remarks: the single repeated in transmission passes
1 occasion of defeated correspondence.
Such as: when PDCCH monitors the period and deviant is assigned as 1 slot and 0 slot, i.e., each slot has
PDCCH transmission opportunity, multiple first symbols are configured with symbol 0,3,7,9 by the bitmap mode of 14-bit and make
For primary sign, that is, occasion is originated, at this time maximum number of repetitions rmax=2, G=1, ooccasion=0, as shown in figure 8, often
The corresponding duration=2 OFDM symbol of secondary occasion, determining initial time (namely starting occasion) is really at this time
It is set to symbol 0 and 7.
Method 2: initial time meets formula 2
Formula 2:
WhereinMeet
Wherein, nfIndicate wireless frame index,The slot that 1 radio frames when indicating for subcarrier spacing u include
Number,The slot index in 1 radio frames when indicating for subcarrier spacing u, kp,sAnd op,sIndicate PDCCH monitoring week
Phase and deviant,Indicate that the quantity of multiple first symbols in slot is also referred to as occasion quantity,
noccasionIndicate occasion index in slot, αoffsetIndicate the shift ratio of occasion in cycle T, rmaxIndicate high-rise letter
The PDCCH maximum number of repetitions of configuration is enabled, G indicates constant.Remarks: corresponding 1 occasion of single transmission in transmission is repeated.
Such as: when PDCCH monitors the period and deviant is assigned as 1 slot and 0 slot, i.e., each slot has
PDCCH transmission opportunity, multiple first symbols are configured with symbol 0,3,7,9 by the bitmap mode of 14-bit and make
For primary sign (i.e. multiple first symbols), that is, occasion is originated, at this time maximum number of repetitions rmax=2, G
=1, αoffset=0, as shown in figure 5, the corresponding duration=2 OFDM symbol of occasion every time, at this time determining starting
Moment, (namely starting occasion) was determined as symbol 0 and 7.
Method 3: indicate that all possible occasion is (i.e. in slot by the first message bit pattern 14-bit bitmap
Multiple first symbols) and 14-bit bitmap indicate the starting of PDCCH Repetition therein
occasion.It determines that the starting occasion of PDCCH Repetition is most flexible at this time, and non-week may be implemented
The starting occasion of the repetition transmission of phase.Such as: the bitmap mode that multiple first symbols passes through 14-bit
Symbol 0,3,7,9 is configured with as primary sign, is configured with symbol 0,7 as PDCCH in the bitmap mode by 14-bit
Repetition primary sign.
Method 4: all possible basis occasion in slot is indicated by the second message bit pattern bitmap of 14-bit
On, by being starting occasion of the information X bit indicating section occasion as Repetition.Such as 2bit only refers to
The position for showing PDCCH Repetition starting occasion is one of 3 kinds of starting occasion set, that is, is located at institute
Have occasion { 0 }, It is a, wherein
NoccasionIndicate number of first symbols quantity.
Method 5: according to third message bit pattern 14-bit bitmap indicate slot in all possible occasion and
PDCCH maximum number of repetitions rmaxConfiguration, imply determine PDCCH Repetition starting occasion.At this time with rmaxFor
Granularity, link definition originate the position occasion.
That is starting occasion meets noccasionmodrmax=0, orAnd
AndWherein noccasion=0,1 ..., Noccasion- 1, rmaxIndicate high-level signaling
The PDCCH maximum number of repetitions of configuration or single number of repetition value.
Method 6: when RRC configuration PDCCH number of repetition is single value, preferably all multiple first
Symbols is used as the starting occasion of PDCCH Repetition.
Method 7: it is maximum number of repetitions in RRC configuration PDCCH number of repetition, realizes own by covering resource distribution more
Multiple first symbols is used as one of starting occasion, including following manner of PDCCH Repetition:
Mode 1: configuration rmaxCover resource, i.e. rmaxA search space (SS:Search Space), each search space
PDCCH Repetition starting occasion takes union between each other.Such as configuration rmaxResource is covered, with rmaxFor=2, match
2 sets of resources are set, as shown in Figure 9.Configure SS0 and SS1, the resource that the two occupies is different (such as can be belonging respectively to the position PRB not
Same control resource set Coreset), occasion having the same supports to originate from occasion 0,2, SS2 branch for SS0
It holds from occasion 1,3 and originates, for UE, be equivalent to all multiple first symbols (i.e. occasion)
That is occasion 0,1,2,3 can be used as the starting occasion of repetition transmission.
Mode 2: configuration rmaxCover resource, i.e. rmaxA candidate set, the PDCCH of each candidate set
Repetition starting occasion takes union between each other.Such as configuration rmaxResource is covered, with rmaxFor=2,2 sets of moneys are configured
Source, that is, configuring 1 search space has 2 sets of candidate set.Candidate set0 and set1 realize different startings respectively
All multiple first symbols (i.e. occasion) startings, such as set0 reality are realized in the position occasion after combination
It is now originated from occasion 0,2, set1 supports to originate from occasion 1,3, for UE, is equivalent to all multiple
First symbols (i.e. occasion) i.e. occasion 0,1,2,3 can be used as the starting occasion of repetition transmission.Example
Such as: the AL8 for configuring the SS has 4 candidate, and the first two belongs to set0, latter two belongs to set1.
Repetitive transmission method is realized by above-mentioned mode, can determine for repeating transmission and using in multiple initial times
Begin the moment, avoid enhancing additional blind examination complexity while control channel number of repetition blind examination, reduces terminal processes time delay,
Guarantee low time delay highly-reliable transmission.
To sum up, repetitive transmission method machine device, communication equipment and storage medium provided in an embodiment of the present invention, pass through basis
Single transmission or the physical downlink control channel PDCCH for repeating transmission determine that scheduling repeats the physical down business letter of transmission
The scheduling timing interval of road PDSCH, due to scheduling fixed time interval processing is optimized, be set as the value of negative, thus
So that guaranteeing low time delay laser propagation effect while using transmission promotion reliability is repeated, realize that low time delay high reliable communication needs
It asks.In addition, passing through the setting of scheduling timing interval negative, the repetition transmitting and scheduling for indicating PDSCH in advance is realized, terminal is reduced
Processing delay guarantees low time delay highly-reliable transmission.
In some embodiments, the initial time used is repeatedly transmitted in the determination of multiple initial times, avoids believing in control
Enhance additional blind examination complexity while road number of repetition blind examination, reduce terminal processes time delay, guarantees the highly reliable biography of low time delay
It is defeated.
As it can be seen that those skilled in the art should be understood that whole or certain steps in method disclosed hereinabove, be
Functional module/unit in system, device may be implemented as the software (computer program code that can be can be performed with computing device
To realize), firmware, hardware and its combination appropriate.In hardware embodiment, the functional module that refers in the above description/
Division between unit not necessarily corresponds to the division of physical assemblies；For example, a physical assemblies can have multiple functions, or
One function of person or step can be executed by several physical assemblies cooperations.Certain physical assemblies or all physical assemblies can be by realities
It applies as by processor, such as the software that central processing unit, digital signal processor or microprocessor execute, or is implemented as hard
Part, or it is implemented as integrated circuit, such as specific integrated circuit.
In addition, known to a person of ordinary skill in the art be, communication media generally comprises computer-readable instruction, data knot
Other data in the modulated data signal of structure, computer program module or such as carrier wave or other transmission mechanisms etc, and
It and may include any information delivery media.So the present invention is not limited to any specific hardware and softwares to combine.
The above content is combining specific embodiment to be further described to made by the embodiment of the present invention, cannot recognize
Fixed specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs,
Without departing from the inventive concept of the premise, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to the present invention
Protection scope.
Claims (15)
1. a kind of repetitive transmission method, which is characterized in that the described method includes:
The Traffic Channel for repeating transmission is dispatched by physical downlink control channel PDCCH, wherein the PDCCH and business letter
Scheduling timing interval is divided between road, the scheduling timing interval includes the integer less than or equal to zero.
2. repetitive transmission method as described in claim 1, which is characterized in that if the Traffic Channel is physical down business letter
Road PDSCH, when the scheduling timing interval is indicated by the PDCCH of single transmission, the value at the scheduling timing interval includes
Negative.
3. repetitive transmission method as claimed in claim 2, which is characterized in that the value at the scheduling timing interval is under first
In limit value to zero range intervals, wherein the method for determination of first lower limit value is one of the following:
After the number of repetition of PDSCH is subtracted a constant, its inverse value is taken, obtains first lower limit value, the constant is
1；
First lower limit value is determined by the terminal capacity report or radio resource control RRC configuration.
4. repetitive transmission method as claimed in claim 3, which is characterized in that the number of repetition method of determination packet of the PDSCH
Include at least one of:
It is configured by high-level signaling；
It is indicated by Downlink Control Information DCI.
5. repetitive transmission method as described in claim 1, which is characterized in that if the Traffic Channel is physical down business letter
Road PDSCH, and when the instruction of the PDCCH by repeating transmission, the value at the scheduling timing interval includes negative.
6. repetitive transmission method as claimed in claim 5, which is characterized in that the value at the scheduling timing interval is under second
In limit value to zero range intervals, wherein second lower limit value is determined as following one:
After the number of repetition of PDCCH is subtracted a constant, its inverse value is taken, obtains second lower limit value, the constant is
1；
Second lower limit value is determined by the terminal capacity report or radio resource control RRC configuration.
7. repetitive transmission method as claimed in claim 5, which is characterized in that the value at the scheduling timing interval are as follows:
It is indicated by the PDCCH；
Predefined value and the value are as follows: after the number of repetition of PDCCH is subtracted a constant, take its inverse value, obtain
Second lower limit value, the constant are 1；
Predefined value and the value are as follows: determined by the terminal capacity report or radio resource control RRC configuration.
8. repetitive transmission method as claimed in claim 6, which is characterized in that the number of repetition method of determination packet of the PDSCH
Include at least one of:
It is configured by high-level signaling；
It is indicated by Downlink Control Information DCI.
9. repetitive transmission method as described in claim 1, which is characterized in that described to repeat transmission PDCCH, further includes: from more
The initial time that transmission is repeated as the PDCCH at least one is selected in primary sign.
10. repetitive transmission method as claimed in claim 9, which is characterized in that it is described selected from more primary signs at least it
One initial time for determining that the PDCCH repeats transmission includes at least one following manner:
The initial time satisfaction is equal to 0 to cycle T modulus after subtracting deviant, and wherein cycle T is PDCCH number of repetition
Multiple；
The initial time, which meets, is equal to cycle T multiplied by shift ratio coefficient to cycle T modulus, and wherein cycle T is PDCCH repetition
The multiple of number；
Indicate that PDCCH repeats the initial time transmitted in time slot by the first message bit pattern；
At least one primary sign in more primary signs is chosen to be combined into no more than 2xKind primary sign set, is indicated by x bit
One of them repeats the initial time of transmission as the PDCCH, and x is positive integer；
The initial time meets noccasionmodrmax=0, wherein noccasion=0,1 ..., Noccasion- 1, rmaxIndicate high-rise
The PDCCH maximum number of repetitions of signal deployment or single number of repetition value.
11. repetitive transmission method as claimed in claim 10, which is characterized in that if when x=2, it is described that it is indicated by x bit
One of as the PDCCH repeat transmission initial time include:
The position for indicating that the PDCCH repeats initial time is one of three kinds of initial time set, three kinds of initial times
Collection is combined intoWherein NoccasionTable
Show primary sign quantity.
12. repetitive transmission method as claimed in claim 9, which is characterized in that if the PDCCH iterative transfer times are single
When value, the initial time that at least one selection determines that the PDCCH repeats transmission from more primary signs includes: a lot of
All moment determined by beginning symbol.
13. a kind of repeat transmitting device characterized by comprising
Scheduler module, by physical downlink control channel PDCCH dispatch repeat transmission Traffic Channel, wherein the PDCCH and
Scheduling timing interval is divided between the Traffic Channel, the value at the scheduling timing interval includes whole less than or equal to zero
Number.
14. a kind of communication equipment, including processor, memory, sensor and communication bus；
The communication bus is for realizing the communication connection between the processor and the memory；
The processor is for executing one or more program stored in memory, to realize such as claim 1 to 12 times
The step of repetitive transmission method described in one.
15. a kind of computer readable storage medium, the computer-readable recording medium storage has one or more program, institute
Stating one or more program can be executed by one or more processor, to realize as described in any one of claim 1 to 12
Repetitive transmission method the step of.
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