CN108811148A - Ascending transmission method, device, base station and the user equipment of URLLC business - Google Patents
Ascending transmission method, device, base station and the user equipment of URLLC business Download PDFInfo
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- CN108811148A CN108811148A CN201710312220.1A CN201710312220A CN108811148A CN 108811148 A CN108811148 A CN 108811148A CN 201710312220 A CN201710312220 A CN 201710312220A CN 108811148 A CN108811148 A CN 108811148A
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- retransmissions
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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
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
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- Engineering & Computer Science (AREA)
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- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention provides a kind of ascending transmission method, device, base station and the user equipment of URLLC business.In base station side, the method includes：UE is received using the URLLC business datums for exempting from scheduling mode transmission；URLLC business datums are decoded；When the URLLC business datums of decoding failure and UE transmissions are just to pass data, number of retransmissions of the UE based on scheduling is determined；When number of retransmissions is more than 0, scheduling information and number of retransmissions are sent to UE.In the sides UE, the method includes：Using scheduling mode is exempted from just data are passed to base station transmission URLLC business；Base station is received to passing the scheduling information sent when data decoding failure and number of retransmissions at the beginning of URLLC business；The data based on scheduling are carried out according to scheduling information and number of retransmissions to retransmit, up to the confirmation feedback or data re-transmission that receive base station reach the number of retransmissions.The present invention can dynamically determine number of retransmissions of the UE based on scheduling, improve spectrum efficiency.
Description
Technical field
The present invention relates to wireless communication technology field more particularly to a kind of ascending transmission method of URLLC business, device,
Base station and user equipment.
Background technology
URLLC (Ultra Reliability and Low Latency Communication, the reliable low time delay of superelevation
Communication) it is one kind that 3GPP (3rd Generation Partnership Project, third generation partner program) is defined
5G application scenarios.The feature and URLLC business that URLLC business has sudden, sparsity, data packet smaller are to time delay and reliably
Property has very strict requirement.In order to meet this requirement, needing to the more frequency spectrum resource of URLLC traffic assignments and to the greatest extent may be used
It can support repeatedly to retransmit, just URLLC business can be made to complete highly-reliable transmission in stringent delay requirement.The control of URLLC business
Channel processed also has very strict requirement, NR (New Radio, newly eat dishes without rice or wine) to support simplified DCI (Downlink reliability
Control Information, Downlink Control Information) to obtain high reliability.The DCI of this simplification needs to reduce instruction resource
The bit number of the information such as distribution, MCS.
For uplink URLLC business, after business reaches, by the way of based on scheduling, UE (User Equipment,
User equipment) it needs to send scheduling request to base station, base station can issue scheduling resource, MCS after receiving scheduling request to UE
Information such as (Modulation Coding Scheme, modulation coding schemes), then UE is after receiving scheduling information, according to tune
Information is spent using specified MCS (in specified running time-frequency resource transmission data.Mode based on scheduling can rush to avoid running time-frequency resource
It is prominent, but scheduling delay can be introduced, and URLLC business has very strict requirement for time delay, in order to reduce time delay simultaneously
Improve spectrum efficiency, uplink URLLC business generally using it is competition-based exempt from dispatch by the way of.
When competition-based exempt from by the way of scheduling, UE needs to have configured MCS and frequency spectrum resource in advance.All UE are used
Identical MCS, and share spectrum resources.When there is the arrival of URLLC business, UE can use pre-configured MCS shared
Frequency spectrum resource transmission data, without sending scheduling request to base station.Since multiple UE share identical frequency spectrum resource, when more
A UE is in identical frequency spectrum resource transmission data simultaneously, it may occur that conflict.In order to improve the reliability of URLLC business, use
, can be with continuous several times transmission data when the mode competition-based for exempting from scheduling, the ACK until receiving base station
(Acknowledgement confirms character) feedback.In order to avoid conflicting, improving reliability, exempted from using competition-based in first pass
On the basis of scheduling mode, the mode based on scheduling may be used to retransmit data.
After the first biography data that base station receives UE transmissions decode failure, base station can retransmit number for UE scheduling resources
According to after UE receives the scheduling information of base station, being switched to the mode based on scheduling from the mode for exempting from scheduling and retransmit data.Based on tune
The re-transmission of degree can clash to avoid the resource with other UE.Re-transmission based on scheduling, can also continuously send repeatedly with
Increase data is decoded into power.
The first biography competition-based for exempting from scheduling combines in the scheme of the re-transmission based on scheduling, as shown in Figure 1, entire frequency range point
To exempt from scheduling frequency range and frequency range two parts based on scheduling.Exempt to dispatch frequency range for K times initial continuous biography competition-based
Defeated, which is shared by all UE.Exempting from scheduling frequency range can further segment, and will exempt from scheduling frequency range in Fig. 1 and be divided into four parts, UE
When needing transmission data, the one of part of UE selections carries out data transmission.Frequency range based on scheduling is used for the L based on scheduling
Secondary re-transmission, the frequency range can also be segmented further, and the frequency range based on scheduling is divided into two parts in Fig. 1, and base station is dispatched for UE
When retransmission resource, selects one of part to distribute to UE and carry out L re-transmission.
In the implementation of the present invention, inventor has found at least to have the following technical problems in the prior art：
It is currently based in scheme of the first biography for exempting from scheduling of competition in conjunction with the re-transmission based on scheduling, the re-transmission based on scheduling time
Number L is fixed, and the division of the frequency spectrum resource based on scheduling will consider the feelings that extreme conditions needs the UE retransmitted more
Condition.When need retransmit UE negligible amounts when, the frequency spectrum resource based on scheduling cannot be fully utilized, cause spectrum efficiency compared with
It is low.
Invention content
Ascending transmission method, device, base station and the user equipment of URLLC business provided by the invention, can dynamically determine
Number of retransmissions of the UE based on scheduling, to improve spectrum efficiency.
In a first aspect, the present invention provides a kind of ascending transmission method of URLLC business, the method is applied to base station, institute
The method of stating includes：
UE is received using the URLLC business datums for exempting from scheduling mode transmission；
The URLLC business datums are decoded；
When the URLLC business datums of decoding failure and UE transmissions are just to pass data, weights of the UE based on scheduling is determined
Pass number；
When the number of retransmissions is more than 0, scheduling information and the number of retransmissions are sent to UE, so that UE is according to
Scheduling information and the number of retransmissions carry out the re-transmission of the data based on scheduling.
Optionally, the number of retransmissions of the determining UE based on scheduling includes：According to Signal to Interference plus Noise Ratio, the base for just passing data
In the resource of scheduling service condition and one or more of need the number of users dispatched simultaneously and determine that UE is based on scheduling
Number of retransmissions.
Second aspect, the present invention provide the ascending transmission method of another kind URLLC business, and the method is set applied to user
It is standby, the method includes：
Using scheduling mode is exempted from just data are passed to base station transmission URLLC business；
Base station is received to passing the scheduling information sent when data decoding failure and number of retransmissions at the beginning of the URLLC business；
The data based on scheduling are carried out according to the scheduling information and number of retransmissions to retransmit, until receiving base station transmission
Confirm that feedback or data re-transmission reach the number of retransmissions.
Optionally, the number of retransmissions is base station according to the Signal to Interference plus Noise Ratio for just passing data, the resource based on scheduling
Service condition and one or more of the number of users dispatched is needed simultaneously and determine.
Optionally, the method further includes：
When not receiving base station the scheduling information sent when failure and re-transmission are being decoded to passing data at the beginning of the URLLC business
When number, URLLC business datums are continuously transmitted to base station using scheduling mode is exempted from, until receiving the confirmation feedback of base station transmission
Or it continuously transmits number and reaches pre-determined number.
The third aspect, the present invention provide a kind of uplink device of URLLC business, and described device is located at base station, described
Device includes：
First receiving unit, for receiving UE using the URLLC business datums for exempting from scheduling mode transmission；
Decoding unit, for being decoded to the URLLC business datums；
Determination unit, for being just to pass when the URLLC business datums of decoding unit decoding failure and UE transmissions
When data, number of retransmissions of the UE based on scheduling is determined；
First transmission unit, for when the number of retransmissions is more than 0, scheduling information and the number of retransmissions to be sent to
UE is retransmitted so that UE carries out the data based on scheduling according to the scheduling information and the number of retransmissions.
Optionally, the determination unit, for being made according to the Signal to Interference plus Noise Ratio for just passing data, resource based on scheduling
One or more of number of users dispatched is needed to determine number of retransmissions of the UE based on scheduling with situation and simultaneously.
Fourth aspect, the present invention provide the uplink device of another kind URLLC business, and described device is set positioned at user
Standby, described device includes：
Second transmission unit exempts to pass data at the beginning of scheduling mode sends URLLC business to base station for using；
Second receiving unit, for receiving base station to passing the tune sent when data decoding failure at the beginning of the URLLC business
Spend information and number of retransmissions；
Retransmission unit is retransmitted for carrying out the data based on scheduling according to the scheduling information and number of retransmissions, until connecing
The confirmation feedback or data re-transmission for receiving base station transmission reach the number of retransmissions.
Optionally, the number of retransmissions is base station according to the Signal to Interference plus Noise Ratio for just passing data, the resource based on scheduling
Service condition and one or more of the number of users dispatched is needed simultaneously and determine.
Optionally, described device further includes：
Third transmission unit, for when do not receive base station at the beginning of the URLLC business pass data decoding failure when send out
When the scheduling information and number of retransmissions sent, URLLC business datums are continuously transmitted to base station using scheduling mode is exempted from, until receiving
The confirmation that base station is sent, which feeds back or continuously transmits number, reaches pre-determined number.
5th aspect, the present invention provide a kind of base station, and the base station includes the uplink of the above-mentioned URLLC business positioned at base station
Transmitting device.
6th aspect, the present invention provide a kind of user equipment, and the user equipment includes above-mentioned positioned at user equipment
The uplink device of URLLC business.
Ascending transmission method, device, base station and the user equipment of URLLC business provided in an embodiment of the present invention, UE are used
The first biography mode for exempting from scheduling combines the retransmission scheme based on scheduling to send URLLC business datums, the re-transmission based on scheduling to base station
Number is dynamically determined by base station and notifies UE.Compared with prior art, the present invention can use more flexible mode dynamic to determine
The fixed number of retransmissions based on scheduling, so as to improve spectrum efficiency.
Description of the drawings
Fig. 1 is the frequency spectrum resource division schematic diagram for exempting to dispatch frequency range and the frequency range based on scheduling；
Fig. 2 is the flow chart of the ascending transmission method of one embodiment of the invention URLLC business；
Fig. 3 is the flow chart of the ascending transmission method of another embodiment of the present invention URLLC business；
Fig. 4 is the flow chart of the ascending transmission method of yet another embodiment of the invention URLLC business；
Fig. 5 is the flow chart of the ascending transmission method of further embodiment of this invention URLLC business；
Fig. 6 is the time slot schematic diagram in the ascending transmission method of a further embodiment URLLC business of the present invention；
Fig. 7 is the structural schematic diagram of the uplink device of one embodiment of the invention URLLC business；
Fig. 8 is the structural schematic diagram of the uplink device of another embodiment of the present invention URLLC business；
Fig. 9 is the structural schematic diagram of the uplink device of yet another embodiment of the invention URLLC business.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
It is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a kind of ascending transmission method of URLLC business, and the method is applied to base station, such as Fig. 2
It is shown, the method includes：
S21, base station receive UE using the URLLC business datums for exempting from scheduling mode transmission.
S22, base station are decoded the URLLC business datums.
S23, when decoding failure and UE send the URLLC business datums be just pass data when, base station determines that UE is based on
The number of retransmissions of scheduling.
Specifically, base station can according to the service condition of the Signal to Interference plus Noise Ratio for just passing data, resource based on scheduling with
And one or more of the number of users dispatched is needed simultaneously and determine number of retransmissions of the UE based on scheduling.
S24, when the number of retransmissions be more than 0 when, scheduling information and the number of retransmissions are sent to UE by base station, so that UE
The data based on scheduling are carried out according to the scheduling information and the number of retransmissions to retransmit.
Wherein, scheduling information and the number of retransmissions can be sent to UE by base station by simplified DCI, at this time retransmit with
It just passes and uses identical bandwidth and MCS.
The ascending transmission method of URLLC business provided in an embodiment of the present invention, when base station sends out UE using scheduling mode is exempted from
It is dry according to the letter for just passing data when the URLLC business datums decoding failure sent and the URLLC business datums are first biography data
Make an uproar ratio, based on scheduling resource service condition and one or more of need the number of users dispatched simultaneously and determine UE bases
Scheduling information and number of retransmissions are sent to UE, so that UE is according to institute when number of retransmissions is more than 0 in the number of retransmissions of scheduling
It states scheduling information and the number of retransmissions carries out the data based on scheduling and retransmits.Compared with prior art, the present invention can use
More flexible mode dynamic determines the number of retransmissions based on scheduling, so as to improve spectrum efficiency.
The embodiment of the present invention provides the ascending transmission method of another kind URLLC business, and the method is applied to user equipment,
As shown in figure 3, the method includes：
S31, UE just pass data using scheduling mode is exempted to base station transmission URLLC business.
S32, UE receive base station to passing the scheduling information sent when data decoding failure and re-transmission at the beginning of the URLLC business
Number.
Specifically, the number of retransmissions is base station according to the Signal to Interference plus Noise Ratio for just passing data, the resource based on scheduling
Service condition and one or more of the number of users dispatched is needed simultaneously and determine.
Wherein, UE can receive base station by the simplified DCI scheduling informations sent and number of retransmissions, retransmit at this time and first
It passes and uses identical bandwidth and MCS.
S33, UE carry out the data based on scheduling according to the scheduling information and number of retransmissions and retransmit, until receiving base station
Confirmation feedback or the data re-transmission of transmission reach the number of retransmissions.
Further, when UE does not receive base station to passing the tune sent when data decoding failure at the beginning of the URLLC business
When spending information and number of retransmissions, URLLC business datums are continuously transmitted to base station using scheduling mode is exempted from, until receiving base station hair
The confirmation sent, which feeds back or continuously transmits number, reaches pre-determined number.
The ascending transmission method of URLLC business provided in an embodiment of the present invention, UE are combined using the first biography mode for exempting from scheduling
URLLC business datums are sent to base station based on the retransmission scheme of scheduling, based on the number of retransmissions of scheduling by base station according to described first
Pass the Signal to Interference plus Noise Ratio of data, the service condition of resource based on scheduling and need simultaneously one in the number of users dispatched or
It is multiple to be dynamically determined and notify UE.Compared with prior art, the present invention can use more flexible mode dynamic to determine to be based on
The number of retransmissions of scheduling, so as to improve spectrum efficiency.
Specifically, in the ascending transmission method of URLLC business of the embodiment of the present invention, as shown in figure 4, the flow of base station side
It is as follows：
After base station receives the URLLC business datums of UE transmissions, if successfully decoded, ACK can be sent to UE；If decoding is lost
It loses and is this time transmitted as just passing, then base station can determine number of retransmissions Ls of the UE based on scheduling, if L>0, base station can by scheduling information and
Number of retransmissions is sent to UE by DCI；If L is equal to 0, base station does not send scheduling information to UE.
Specifically, in the ascending transmission method of URLLC business of the embodiment of the present invention, as shown in figure 5, the flow of the sides UE is such as
Under：
After URLLC business reaches, UE sends URLLC business datums by way of exempting from scheduling to base station, exempts from scheduling
It is K to continuously transmit number, and K values are semi-statically configured by base station.
During UE K transmission data continuous to base station by the way of exempting from scheduling, if UE receives base station hair
The ACK or the number of transmissions sent reaches K times, then the end of transmission；If UE receives the scheduling information of base station transmission and retransmits secondary
It counts, then UE can be switched to the mode based on scheduling from the mode for exempting from scheduling, according to the scheduling information and number of retransmissions L, use
Based on the mode of scheduling data re-transmission is carried out to base station.
During UE L transmission data continuous to base station by the way of based on scheduling, if UE receives base station
The ACK of transmission or the number of transmissions based on scheduling reach L times, then the end of transmission.
The ascending transmission method of URLLC business of the embodiment of the present invention is described in detail with reference to specific example.
Uplink URLLC business uses 60kHz SCS (Sub-Carrier Spacing, subcarrier spacing), 7 OFDM
(Orthogonal Frequency-Division Multiplexing, orthogonal frequency division multiplexing) symbol.Each slot length is
0.125 millisecond.The delay requirement of URLLC business is 1 millisecond, and URLLC business can at most send 6 in 1 millisecond of delay requirement
It is secondary, as shown in Figure 6.
URLLC business is just passed carries out K continuous transmission by the way of exempting from scheduling, and K is equal to 6 and maximum transmitted in this example
Number is identical.Base station is decoded after receiving the data that UE is sent, if successfully decoded can give UE feeding back ACKs, UE receive ACK feedbacks
Stop transmission afterwards.If decoding fails and is this time transmitted as just passing, base station can determine number of retransmissions Ls of the UE based on scheduling.
It base station can be according to first SINR (Signal to Interference and Noise Ratio, the letter for passing data
Dry ratio of making an uproar), entirely one or more of the service condition of the resource based on scheduling, the number of users of scheduling and other factors
Because usually determining the value of L.
Such as：When according to values of the SINR of data to determine L is just passed, it may be used such as under type：
If SINR>θ0, L=0；
If θ1<SINR<=θ0, L=1；
If θ2<SINR<=θ1, L=2；
If SINR<=θ2, L=3；
Wherein θ0>θ1>θ2, θ0、θ1And θ2Value by base station sets.
Such as：When according to value of the service condition of the entire resource based on scheduling to determine L, it may be used such as lower section
Formula：
The ratio that the total resources of certain UE schedulable have distributed to other UE is α,
If α>α0, L=0；
If α1<α<=α0, L=1；
If α2<α<=α1, L=2；
If α<=α2, L=3；
Wherein α0>α1>α2, α0、α1And α2Value by base station sets.
If L>0, scheduling information and number of retransmissions can be sent to UE by base station by DCI；If L is equal to 0, UE is not given in base station
Send scheduling information.
Such as：When according to the SINR for just passing data and entirely the service condition of the resource based on scheduling determines the value of L
When, it may be used such as under type：
1, the parameter of one group of entire occupation proportion α of the resource based on scheduling is determined according to different SINR values：
If SINR>θ0, the parameter of α is α00、α01And α02；
If SINR<=θ0, the parameter of α is α10、α11And α12；
Wherein α00>α01>α02, α10>α11>α12, θ0、α00、α01、α02, α10、α11And α12Value by base station sets.
2, determine that the parameter of α further determines the value of L：
If SINR>θ0,
If α>α00, L=0；
If α01<α<=α00, L=1；
If α02<α<=α01, L=2；
If α<=α02, L=3；
If SINR<=θ0,
If α>α10, L=0；
If α11<α<=α10, L=1；
If α12<α<=α11, L=2；
If α<=α12, L=3；
In three above example, base station can according to it is different while need the number of users dispatched to determine SINR
And/or the relevant parameter of α, need the number of users dispatched more when simultaneously, the value of L is smaller, otherwise the value of L is bigger.
During UE K transmission data continuous to base station by the way of exempting from scheduling, if UE receives base station hair
The ACK or the number of transmissions sent reaches K times, then the end of transmission；If UE receives the scheduling information of base station transmission and retransmits secondary
It counts, then UE can be switched to the mode based on scheduling from the mode for exempting from scheduling, according to the scheduling information and number of retransmissions L, use
Based on the mode of scheduling data re-transmission is carried out to base station.
During UE L transmission data continuous to base station by the way of based on scheduling, if UE receives base station
The ACK of transmission or the number of transmissions based on scheduling reach L times, then the end of transmission.
The embodiment of the present invention also provides a kind of uplink device of URLLC business, and described device is located at base station, such as Fig. 7
Shown, described device includes：
First receiving unit 21, for receiving UE using the URLLC business datums for exempting from scheduling mode transmission；
Decoding unit 22, for being decoded to the URLLC business datums；
Determination unit 23, the URLLC business datums for decoding failure and UE transmissions when the decoding unit 22 are
When just passing data, number of retransmissions of the UE based on scheduling is determined；
First transmission unit 24, for when the number of retransmissions is more than 0, scheduling information and the number of retransmissions to be sent
To UE, retransmitted so that UE carries out the data based on scheduling according to the scheduling information and the number of retransmissions.
The uplink device of URLLC business provided in an embodiment of the present invention, when base station sends out UE using scheduling mode is exempted from
The URLLC business datums decoding failure sent and the URLLC business datums are when just passing data, to determine the UE re-transmissions based on scheduling time
Scheduling information and number of retransmissions are sent to UE, so that UE is according to the scheduling information and institute by number when number of retransmissions is more than 0
It states number of retransmissions and carries out the data re-transmission based on scheduling.Compared with prior art, the present invention can use more flexible mode
Dynamic determines the number of retransmissions based on scheduling, so as to improve spectrum efficiency.
Optionally, the determination unit 23, for according to the Signal to Interference plus Noise Ratio for just passing data, resource based on scheduling
Service condition and one or more of the number of users dispatched is needed simultaneously and determine number of retransmissions of the UE based on scheduling.
The device of the present embodiment, can be used for executing above application in the technical solution of the embodiment of the method for base station side,
Implementing principle and technical effect are similar, and details are not described herein again.
The embodiment of the present invention also provides the uplink device of another kind URLLC business, and described device is located at user equipment,
As shown in figure 8, described device includes：
Second transmission unit 31 exempts to pass data at the beginning of scheduling mode sends URLLC business to base station for using；
Second receiving unit 32 is decoding what the when of failing sent for receiving base station to passing data at the beginning of the URLLC business
Scheduling information and number of retransmissions；
Retransmission unit 33 is retransmitted for carrying out the data based on scheduling according to the scheduling information and number of retransmissions, until
The confirmation feedback or data re-transmission for receiving base station transmission reach the number of retransmissions.
The ascending transmission method of URLLC business provided in an embodiment of the present invention, UE are combined using the first biography mode for exempting from scheduling
URLLC business datums are sent to base station based on the retransmission scheme of scheduling, based on the number of retransmissions of scheduling by base station according to described first
One or more of the number of users of the Signal to Interference plus Noise Ratio of biography data, the service condition of the resource based on scheduling and scheduling dynamic
It determines and notifies UE.Compared with prior art, the present invention can use more flexible mode dynamic to determine the weight based on scheduling
Number is passed, so as to improve spectrum efficiency.
Optionally, the number of retransmissions is base station according to the Signal to Interference plus Noise Ratio for just passing data, the resource based on scheduling
Service condition and one or more of the number of users dispatched is needed simultaneously and determine.
Optionally, as shown in figure 9, described device further includes：
Third transmission unit 34, for when do not receive base station at the beginning of the URLLC business pass data decoding failure when
When the scheduling information and number of retransmissions of transmission, URLLC business datums are continuously transmitted to base station using scheduling mode is exempted from, until receiving
The confirmation sent to base station, which feeds back or continuously transmits number, reaches pre-determined number.
The device of the present embodiment can be used for executing above application in the technical side of the embodiment of the method for user equipment side
Case, implementing principle and technical effect are similar, and details are not described herein again.
The embodiment of the present invention also provides a kind of base station, and the base station includes the uplink of the above-mentioned URLLC business positioned at base station
Transmitting device.
The embodiment of the present invention also provides a kind of user equipment, and the user equipment includes above-mentioned positioned at user equipment
The uplink device of URLLC business.
One of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer read/write memory medium
In, the program is when being executed, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, all answer by the change or replacement that can be readily occurred in
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (12)
1. a kind of ascending transmission method of URLLC business, the method is applied to base station, which is characterized in that the method includes：
UE is received using the URLLC business datums for exempting from scheduling mode transmission；
The URLLC business datums are decoded；
When the URLLC business datums of decoding failure and UE transmissions are just to pass data, the UE re-transmissions based on scheduling time are determined
Number；
When the number of retransmissions is more than 0, scheduling information and the number of retransmissions are sent to UE, so that UE is according to the scheduling
Information and the number of retransmissions carry out the re-transmission of the data based on scheduling.
2. according to the method described in claim 1, it is characterized in that, the number of retransmissions of the determining UE based on scheduling includes：Root
It just passes the Signal to Interference plus Noise Ratio of data, the service condition of resource based on scheduling according to described and needs simultaneously in the number of users dispatched
One or more determine number of retransmissions of the UE based on scheduling.
3. a kind of ascending transmission method of URLLC business, the method is applied to user equipment, which is characterized in that the method
Including：
Using scheduling mode is exempted from just data are passed to base station transmission URLLC business；
Base station is received to passing the scheduling information sent when data decoding failure and number of retransmissions at the beginning of the URLLC business；
The data based on scheduling are carried out according to the scheduling information and number of retransmissions to retransmit, until receiving the confirmation of base station transmission
Feedback or data re-transmission reach the number of retransmissions.
4. according to the method described in claim 3, it is characterized in that, the number of retransmissions is base station just passes data according to described
Signal to Interference plus Noise Ratio, resource based on scheduling service condition and one or more of need the number of users dispatched simultaneously really
It is fixed.
5. method according to claim 3 or 4, which is characterized in that the method further includes：
When not receiving base station the scheduling information sent when failure and number of retransmissions are being decoded to passing data at the beginning of the URLLC business
When, continuously transmit URLLC business datums to base station using scheduling mode is exempted from, until receive base station transmission confirmation feedback or
It continuously transmits number and reaches pre-determined number.
6. a kind of uplink device of URLLC business, described device are located at base station, which is characterized in that described device includes：
First receiving unit, for receiving UE using the URLLC business datums for exempting from scheduling mode transmission；
Decoding unit, for being decoded to the URLLC business datums；
Determination unit, for being just to pass data when the URLLC business datums of decoding unit decoding failure and UE transmissions
When, determine number of retransmissions of the UE based on scheduling；
First transmission unit, for when the number of retransmissions is more than 0, scheduling information and the number of retransmissions to be sent to UE,
It is retransmitted so that UE carries out the data based on scheduling according to the scheduling information and the number of retransmissions.
7. device according to claim 6, which is characterized in that the determination unit, for just passing data according to described
Signal to Interference plus Noise Ratio, based on scheduling resource service condition and one or more of need the number of users dispatched simultaneously and determine
Number of retransmissions of the UE based on scheduling.
8. a kind of uplink device of URLLC business, described device are located at user equipment, which is characterized in that described device packet
It includes：
Second transmission unit exempts to pass data at the beginning of scheduling mode sends URLLC business to base station for using；
Second receiving unit is believed for receiving base station to passing the scheduling sent when data decoding failure at the beginning of the URLLC business
Breath and number of retransmissions；
Retransmission unit is retransmitted for carrying out the data based on scheduling according to the scheduling information and number of retransmissions, until receiving
Confirmation feedback or the data re-transmission that base station is sent reach the number of retransmissions.
9. device according to claim 8, which is characterized in that the number of retransmissions is that base station just passes data according to described
Signal to Interference plus Noise Ratio, resource based on scheduling service condition and one or more of need the number of users dispatched simultaneously really
It is fixed.
10. device according to claim 8 or claim 9, which is characterized in that described device further includes：
Third transmission unit, for sending when not receiving base station when to passing data decoding failure at the beginning of the URLLC business
When scheduling information and number of retransmissions, URLLC business datums are continuously transmitted to base station using scheduling mode is exempted from, until receiving base station
The confirmation of transmission, which feeds back or continuously transmits number, reaches pre-determined number.
11. a kind of base station, which is characterized in that the base station includes that the uplink of URLLC business as claimed in claims 6 or 7 passes
Defeated device.
12. a kind of user equipment, which is characterized in that the user equipment includes as described in any one of claim 8 to 10
The uplink device of URLLC business.
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