CN110149661A

CN110149661A - Channel transmission method and device, the network equipment and computer readable storage medium

Info

Publication number: CN110149661A
Application number: CN201810150224.9A
Authority: CN
Inventors: 石靖; 夏树强; 韩祥辉; 任敏; 林伟
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2018-02-13
Filing date: 2018-02-13
Publication date: 2019-08-20
Anticipated expiration: 2038-02-13
Also published as: WO2019158013A1; CN110149661B

Abstract

The embodiment of the invention provides a kind of channel transmission methods and device, the network equipment and computer readable storage medium, determine the transmission granularity of transmission, and based on transmission granularity, the channel is transmitted in repetition.Implementation through the embodiment of the present invention, in the transmission granularity for determining transmission and then the repetition transmission for carrying out channel, so that the transmission for smaller particle size provides possible, it can be achieved that carrying out repeating transmission using short transmission interval.

Description

Channel transmission method and device, the network equipment and computer readable storage medium

Technical field

The present embodiments relate to the communications field more particularly to a kind of channel transmission methods and device, the network equipment and meter Calculation machine readable storage medium storing program for executing.

Background technique

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

For the feature for supporting ultrahigh reliability and ultralow time delay to transmit, need to repeat to pass compared with short transmission time interval Defeated mode transmits the highly reliable business of low time delay, it is most short can be to single OFDM (Orthogonal Frequency Division Multiplexing, orthogonal frequency division multiplexing) symbol.Other length transmission time intervals also can be used simultaneously, have multiple OFDM symbol, it is therefore desirable to how to carry out repeating transmission when determining use compared with short transmission interval, at present still without preferable method.

Summary of the invention

The embodiment of the invention provides a kind of channel transmission methods and device, the network equipment and computer-readable storage medium Matter, it is intended to solve the problems, such as to lack the scheme using repeat compared with short transmission interval transmission in the prior art.

In order to solve the above-mentioned technical problem, the embodiment of the invention provides a kind of channel transmission methods, comprising:

The transmission granularity used when determining transmission；

Based on the transmission granularity, the channel is transmitted in repetition.

The embodiment of the invention also provides a kind of channel transmission apparatus, comprising:

Granularity confirmation module, for determining the transmission granularity in channel data to be transmitted；

Data transmission module, for carrying out the repetition transmission of data on channel based on transmission granularity.

The embodiment of the invention also provides a kind of network equipments, including first processor, memory and communication bus；

Communication bus is for realizing the connection communication between processor and memory；

Processor is for executing the computer program stored in memory, to realize the step of above-mentioned channel transmission method Suddenly.

The embodiment of the invention also provides a kind of computer readable storage medium, it is stored in computer readable storage medium One or more computer program, computer program can be executed by one or more processor, to realize above-mentioned channel The step of transmission method.

The beneficial effect of the embodiment of the present invention is:

The embodiment of the invention provides a kind of channel transmission methods and device, the network equipment and computer-readable storage medium Matter determines the transmission granularity of transmission, and based on transmission granularity, the channel is transmitted in repetition.Implementation through the embodiment of the present invention, In the transmission granularity for determining channel and then the repetition transmission for carrying out channel, so that the transmission for smaller particle size provides possibility, it can It realizes and carries out repeating transmission using short transmission interval.

Other features of the embodiment of the present invention and corresponding beneficial effect are described in the aft section of specification, and It should be appreciated that at least partly beneficial effect is apparent from from the record in description of the invention.

Detailed description of the invention

Fig. 1 is a kind of channel sending method flow chart that first embodiment of the invention provides；

Fig. 2 is a kind of downlink short transmission time interval pattern schematic diagram that various embodiments of the present invention provide；

Fig. 3 is the uplink short transmission time interval pattern schematic diagram that various embodiments of the present invention provide；

Fig. 4 is repeated between the search space of identical control resource set different time domain for what seventh embodiment of the invention provided Transmit schematic diagram；

Fig. 5 is repeated between the search space of identical control resource set different time domain for what seventh embodiment of the invention provided Transmit schematic diagram；

Fig. 6 is repeated between the search spaces of different control resource set different time domains for what seventh embodiment of the invention provided Transmit schematic diagram；

Fig. 7 is repeated between the search spaces of the identical time domain of different control resource sets for what seventh embodiment of the invention provided Transmit schematic diagram；

Fig. 8 is that the search space schematic diagram used is repeatedly transmitted in the determination that seventh embodiment of the invention provides；

Fig. 9 is a kind of channel sending device composition schematic diagram that ninth embodiment of the invention provides；

Figure 10 is a kind of network equipment composition schematic diagram that tenth embodiment of the invention provides.

Specific embodiment

In order to make the objectives, technical solutions, and advantages of the present invention clearer, it is combined below by each embodiment Attached drawing is described in further detail the embodiment of the present invention.It should be appreciated that embodiment described herein is only used to explain this Invention, is not intended to limit the present invention.

First embodiment

Referring to FIG. 1, Fig. 1 is the channel transmission method flow chart that first embodiment of the invention provides, comprising:

S101, the transmission granularity used when determining transmission；

S102, it is based on transmission granularity, repeats transmission channel.

Optionally, transmission granularity may include at least one of: between orthogonal frequency division multiplex OFDM symbol, short transmission time Every sTTI (short Transmission Time Interval), search space, time slot, mini-slot, Candidate Set.Transmit granularity It refers to that data repeat the unit-sized sent on channel, is transmission granularity with OFDM symbol, indicates that the repetition of data can be with It is transmission granularity with sTTI, then it represents that the repetition of data can arrive the size of given sTTI to the degree of OFDM symbol size Degree.The size of sTTI can be it is any given, generally it includes OFDM symbol it is less, such as no more than 7 OFDM Symbol, but it is not limited to this.Wherein, a time slot may include 14 OFDM symbols, and a mini-slot then may include 2 or 4 or 7 OFDM symbols.

Optionally, it when the transmission granularity of channel data to be transmitted includes OFDM symbol, repeats to transmit secondary Several methods of determination can for it is following any one:

Iterative transfer times are the number of OFDM symbol included in a sTTI；

Pass through Downlink Control Information dynamic instruction iterative transfer times；

Iterative transfer times are configured by high-level signaling.

Optionally, iterative transfer times may include at least one value in set { 1,2,3 }.

Optionally, when transmitting granularity includes sTTI, the methods of determination of iterative transfer times can for it is following any one:

Iterative transfer times are configured by high-level signaling.

Optionally, iterative transfer times may include at least one value in set { 1,2,3,6 }.

Optionally, when transmitting granularity includes OFDM symbol and sTTI, iterative transfer times can with OFDM symbol or STTI is unit.

Optionally, when iterative transfer times are using OFDM symbol as unit, the method for determination of iterative transfer times can be Below any one:

Iterative transfer times are the number of OFDM symbol included at least one sTTI；

Iterative transfer times are configured by high-level signaling.

Optionally, iterative transfer times may include taking in set { 1,2,3,4,5,6,7,8,9,10,11,12,13,14 } At least one value.

Optionally, when iterative transfer times are using sTTI as unit, iterative transfer times may include set { 1,2,3,6 } At least one value at least one middle value, or set { 1,2,3,4,6,8 }.

Optionally, the repetition transmission of data is carried out on channel further include: repeating transmission can be aligned in lower boundary At least one: the boundary sTTI, boundary of time slot and sub-frame boundary.

Optionally, the redundancy versions pattern RV pattern length for repeating transmission can be equal to iterative transfer times.

Optionally, repeat transmission RV pattern method of determination may include it is following any one:

RV pattern is used based on OFDM symbol in sTTI, is repeated by the period of sTTI；

RV pattern is recycled based on OFDM symbol；

Each OFDM symbol uses identical RV in the same sTTI, and RV is used between different sTTI pattern。

Optionally, in the repetition transmission for carrying out data on channel, OFDM symbol is based in single sTTI when repeating transmission Repeatedly, when and number of repetition is equal to the OFDM symbol number in sTTI included, then support that pilot tone is shared in sTTI.

Optionally, it in the repetition transmission for carrying out data on channel, repeats to transmit between multiple sTTI when repeating transmission, and Frequency hopping then can be not shared in the pilot tone of the OFDM symbol in sTTI only between sTTI when frequency hopping in sTTI；

When not frequency hopping between repetition transmission repeatedly transmission, and the frequency hopping in sTTI between multiple sTTI, sTTI, first Pilot tone in sTTI positioned at the OFDM symbol of different frequency domain positions can share to the OFDM of same frequency position in other sTTI Symbol.

Optionally, when channel is short physical down Traffic Channel sPDSCH (short Physical Downlink Shared Channel) when, hybrid automatic repeat-request response HARQ-ACK (Hybrid Automatic is fed back to it Repeat request-Acknowledgement) uplink control channel using single OFDM symbol transmit.

Optionally, under preset feedback timing condition, time-domain position of the uplink control channel in subframe is preset 6 A position OFDM.

Optionally, uplink control channel is short Physical Uplink Control Channel sPUCCH (short Physical Uplink Control CHannel)；

As the sPUCCH using single OFDM symbol transmission and using the short Physical Uplink Shared Channel of single OFDM symbol transmission When sPUSCH (short Physical Uplink Shared Channel) conflicts, transmitted in the OFDM symbol of conflict SPUCCH transmits sPUSCH in remaining OFDM symbol；

When being conflicted using the sPUCCH and the sPUCCH using sTTI transmission of single OFDM symbol transmission, in the OFDM of conflict Transmission is using the sPUCCH of single OFDM symbol transmission on symbol, and transmission is using sTTI transmission in the OFDM symbol not conflicted sPUCCH。

Optionally, when being conflicted using the sPUCCH and the sPUCCH using sTTI transmission of single OFDM symbol transmission, transmission The SPUCCH transmitted using single OFDM symbol is abandoned or is stopped transmission using the sPUCCH of sTTI transmission.

Optionally, it is rushed when using the sPUCCH transmitted based on single OFDM symbol and using the sPUCCH transmitted based on sTTI It is prominent, and need for the at most HARQ-ACK of 1bit in the sPUCCH transmitted based on sTTI to be placed on based on the transmission of single OFDM symbol When transmitting in sPUCCH, retain the HARQ-ACK in the sPUCCH transmitted based on sTTI, abandon or stops transmission using list OFDM The HARQ-ACK of the sPUCCH of symbol transmission.

Optionally, channel is down control channel, when transmission granularity includes search space search space, in Candidate Set At least one when, by predefined, radio resource control RRC configuration, Downlink Control Information DCI instruction, priority rule extremely It is one of few, determine that repeat transmission system is at least one of:

Mode 1: it repeats to transmit between multiple search space of identical control resource set Coreset different moments repetition；

Mode 2: the repetition between the identical search space of identical Coreset different moments；

Mode 3: the repetition between multiple search space of the different moments in different Coreset；

Mode 4: the repetition between the multiple search space in the same time of the phase in different Coreset；

Mode 5: multiple Candidate Set candidate in the search space in the same time of the phase in identical Coreset Between repetition；

Mode 6: the repetition between the multiple search space in the same time of the phase in identical Coreset；

Mode 7: the user's dedicated search spatial index USS ID and sequence for repeating transmission are determined；

Mode 8: the same USS ID difference initial position sequence for repeating transmission is determined；

Mode 9: according to ID sequence repetition in the USS of all configurations.

Optionally, when at least one of usage mode 1,2,3,4,6 carries out repeating to transmit, at 1 when repeating to transmit 1 Candidate Set is used only in 1 moment of search space；Alternatively, at least one of usage mode 2,4,6 carries out repeating transmission When, 1 moment when repeating to transmit in 1 search space uses multiple Candidate Sets.

Optionally, priority rule includes at least one of:

When using the maximum polymerization grade of configuration, usage mode 2；

When using the non-maximum polymerization grade of configuration, usage mode 5；

When using the maximum polymerization grade of configuration, usage mode 4；

When configuring 1 Coreset, usage mode 2 or mode 5；

When configuring 1 search space, usage mode 2 or mode 5；

In the search space of the same type of configuration, usage mode 5；

In the search space of the same type of configuration, usage mode 2；

In the search space of the same type of configuration, usage mode 4.

Optionally, it when transmitting granularity includes time slot or mini-slot, repeatedly transmits and is equal in the search space time domain used The duration duration of place Coreset is multiplied by number of repetition or maximum number of repetitions.

Optionally, when transmitting granularity includes at least one of Candidate Set, sTTI, OFDM symbol, search space, by pre- At least one of definition, RRC configuration, DCI instruction, priority rule determine that repeat transmission system includes at least one of:

Mode 1: repetition in the different search spaces between different sTTI, and search space time domain length is 1 In a sTTI；

Mode 2: the repetition between the different Candidate Sets in search space same in the same sTTI；

Mode 3: in repetition between difference search space in identical sTTI；

Mode 4: repetition in the same search space between different sTTI, and search space time domain length etc. In R sTTI, wherein R indicates number of repetition or maximum number of repetitions；

Mode 5: repeating to transmit in sTTI based on OFDM symbol, wherein when configuring single symbol based on cell reference signals When the short Physical Downlink Control Channel sPDCCH of CRS-based, repeats transmission and introduce single symbol in non-first OFDM symbol in sTTI Number CRS-based sPDCCH；When configuring two symbol CRS-based sPDCCH, transmission the first two symbol in sTTI is repeated In respectively use a Candidate Set, in third symbol repeat transmit when introducing list symbol CRS-based sPDCCH.

Optionally, priority rule includes at least one of:

When configuring 1 Physical Resource Block collection PRB set, usage mode 2；

When configuring 2 PRB set, usage mode 3, and 1 Candidate Set is only used in each search space；

When using the maximum polymerization grade of configuration, usage mode 1；

When using the non-maximum polymerization grade of configuration, usage mode 2；

Fixed usage mode 4；

Fixed usage mode 1.

By the implementation of the present embodiment, the repetition that data under short transmission time interval may be implemented is sent, and may be implemented It obtains and repeats that the different redundancy versions bring coding gains of transmission, frequency can also be obtained other than transmission time domain energy storage gain Domain diversity gain etc., so that realizing URLLC (Ultra-Reliable and Low Latency with less number of repetition Communications, the highly reliable connection of low time delay) demand, lifting system spectrum efficiency.

Second embodiment

Present embodiments provide a kind of Data duplication sending method that transmission granularity is short transmission interval sTTI.

Base station schedules terminals repeat transmission downlink data in multiple Transmission Time Intervals (TTI), use sPDSCH channel. Optionally, the OFDM symbol number that TTI includes is less, such as no more than 7 OFDM symbols, it is not limited to this.The present embodiment It is illustrated with short TTI structure in LTE system, i.e. TTI is short TTI (short TTI, referred to as sTTI), but and unlimited In this.DL short TTI frame structure as shown in Fig. 2, in 1ms subframe include 6 short TTI of DL (Down Link), when When sPDSCH is configured as originating from OFDM symbol #1 or #3, pattern Pattern1 is used；When sPDSCH is configured as from OFDM When symbol #2 is originated, Pattern2 is used.Notice that OFDM symbol number is since 0 here, i.e., OFDM symbol has 14 in 1ms subframe A, serial number is #0 to #13.

Or base station schedules terminals repeat transmission transmission upstream data in multiple Transmission Time Intervals (TTI), use SPUSCH channel.Optionally, the OFDM symbol number that TTI includes is less, such as no more than 7 OFDM symbols, it is not limited to This.The present embodiment is illustrated with short TTI structure in LTE system, and but it is not limited to this.UL short TTI frame structure is such as It include 6 short TTI of UL (Up Link) in 1ms subframe shown in Fig. 3.Notice that OFDM symbol number is since 0 here, i.e. 1ms OFDM symbol has 14 in subframe, and serial number is #0 to #13.

Wherein, when sPDSCH or sPUSCH is based on the repetition transmission of short transmission time interval, iterative transfer times include set At least one value in { 1,2,3,6 }.The method of determination of number of repetition are as follows: pass through Downlink Control Information dynamic instruction, Huo Zhetong Cross high-rise signal deployment.Repeating transmission can originate from any sTTI.It is identical as single sTTI scheduling when number of repetition is 1.It repeats When number is 2, i.e., 2 sTTI are continuously transmitted since the sTTI of scheduling.When number of repetition is 3, i.e., since the sTTI of scheduling Continuously transmit 3 sTTI.When number of repetition is 6, i.e., 6 sTTI are continuously transmitted since the sTTI of scheduling.Or it repeats to transmit Number includes at least one of set { 1,2,3,4,6,8 }.

Optionally, at least one of transmission alignment boundary of time slot, sub-frame boundary are repeated.When number of repetition is 3, Ke Yicong STTI#0 or sTTI#3 starting.Optionally, it when number of repetition is 6, can be originated from sTTI#0.

Optionally, when repeating to transmit, the frequency hopping between each sTTI is supported, i.e., by sTTI frequency hopping.Or only frequency hopping 1 It is secondary, it is k for number of repetition, theA sTTI andFrequency hopping between a sTTI.According to configuring or refer to when frequency hopping The offset shown carries out frequency hopping, and wherein k is more than or equal to 1.

Optionally, when repeating to transmit, the determination side of redundancy versions pattern RV (Redundancy Version) pattern Formula includes at least one of: (1) RV pattern is defined respectively for different number of repetition k, such as number of repetition k =2, RV pattern use { 0,0 } or { 0,3 }, when number of repetition k=3, RV pattern use { 0,0,0 } or { 0,3,0 } Or { 0,2,3 }.(2) RV pattern is recycled according to sequence in { RV1, RV2, RV3, RV4 } of default or configuration or instruction, Optionally, { RV1, RV2, RV3, RV4 }={ 0,0,0,0 } or { 0,2,3,1 } or { 0,3,0,3 } make as number of repetition k=2 It is used { RV1, RV2, RV3 } with { RV1, RV2 } as number of repetition k=3, as number of repetition k=6, use RV1, RV2, RV3,RV4,RV1,RV2}.(3) RV pattern is chosen as { 0,0,0,0 } or { 0,2,3,1 } or { 0,3,0,3 }, secondary when repeating { 0,0,0,0 } or { 0,3,0,3 } can be used when number kmod2=0, can be used as number of repetition kmod3=0 0,0,0, 0 }, { 0,0,0,0 } or { 0,2,3,1 } or { 0,3,0,3 } can be used as number of repetition kmod4=0, work as number of repetition { 0,0,0,0 } or { 0,3,0,3 } can be used when kmod6=0.Such as: as number of repetition k=2, optionally, use { 0,0 } Or { 0,3 }；When number of repetition=3, optionally, use { 0,0,0 }；As number of repetition k=6, optionally, use 0,0, 0,0,0,0 } or { 0,3,0,3,0,3 }.

Optionally, when repeating to transmit, different sTTI use not all the same modulation and coding strategy MCS (Modulation and Coding Scheme, modulation and coding strategy) grade.Such as MCS grade is successively decreased by sTTI.I.e. The MCS that sTTI x is used is not more than the MCS, MCS (sTTI x)≤MCS (sTTI y), wherein from time domain that sTTI y is used STTI x is later than sTTI y.Optionally, when DCI instruction repeats to transmit using MCS1 in first sTTI, then basis is predefined or matches The offset for setting or indicating obtains MCS grade used in subsequent sTTI, it is assumed that offset=2, then according to DCI in first sTTI (Downlink Control Information, Downlink Control Information) instruction uses MCS index#5, then is repeated 2 times transmission When the 2nd sTTI use MCS index#3.

Optionally, when repeating to transmit, different sTTI are big using not all the same frequency domain resource using identical MCS It is small, i.e., it is not all the same using RB (Radio Bearer, radio bearer) quantity on frequency domain.Such as using RB quantity passed by sTTI Increase.That is the RB quantity that sTTI x is used is not more than the RB quantity that sTTI y is used, wherein sTTI x is earlier than sTTI from time domain y.Optionally, when DCI instruction repeats to transmit using RB quantity and position in first sTTI, then according to predefined or configuration or instruction Offset repeat to obtain RB quantity used in subsequent sTTI in frequency domain mirror image, it is assumed that offset=10, system bandwidth include 50 RB then use RB#0-19 according to DCI instruction in first sTTI, then the 2nd sTTI uses RB#0-19 when being repeated 2 times transmission With the data in RB#40-49 and repetition RB#0-9.

A kind of channel transmission method through this embodiment may be implemented obtaining repetition transmission time domain energy storage gain In addition, the different redundancy versions bring coding gains of transmission, frequency diversity gain etc. can also be obtained.So that with less repetition Number realizes URLLC demand, lifting system spectrum efficiency.

3rd embodiment

Base station schedules terminals are in single Transmission Time Interval (TTI) with OFDM symbol (referred to as OS, OFDM symbol) Transmission downlink data is repeated for granularity, uses sPDSCH channel.Optionally, the OFDM symbol number that TTI includes is less, such as does not surpass 7 OFDM symbols are crossed, it is not limited to this.The present embodiment is illustrated with short TTI structure in LTE system, i.e., TTI is Short TTI (short TTI, referred to as sTTI), but it is not limited to this.DL short TTI frame structure is as shown in Fig. 2, in 1ms Include 6 short TTI of DL (Down Link) in frame, when sPDSCH is configured as originating from OFDM symbol #1 or #3, uses Pattern1；When sPDSCH is configured as originating from OFDM symbol #2, Pattern2 is used.Pay attention to OFDM symbol number here Since 0, i.e., OFDM symbol has 14 in 1ms subframe, and serial number is #0 to #13.

Or base station schedules terminals repeat transmission transmission by granularity of OFDM symbol in single Transmission Time Interval (TTI) Upstream data uses sPUSCH channel.Optionally, the OFDM symbol number that TTI includes is less, such as no more than 7 OFDM symbols, It is not limited to this.The present embodiment is illustrated with short TTI structure in LTE system, and but it is not limited to this.UL short TTI frame structure is as shown in figure 3, include 6 short TTI of UL (Up Link) in 1ms subframe.Notice that OFDM symbol is numbered from 0 here Start, i.e., OFDM symbol there are 14 in 1ms subframe, and serial number is #0 to #13.

Wherein, when sPDSCH or sPUSCH is based on OFDM symbol repetition transmission, iterative transfer times include set { 1,2,3 } At least one middle value.The method of determination of number of repetition are as follows: equal to the OFDM symbol number that 1 sTTI includes, or under passing through Row control information dynamic instruction, or configured by high-level signaling.Repeating transmission can originate from the primary sign of any sTTI. When number of repetition is 1, using first symbol in last symbol in sTTI or sTTI, or indicate/it is configured to 1.It repeats When number is 2, that is, the OFDM symbol number that sTTI where repeating transmission includes is 2, or indicate/it is configured to 2.Number of repetition is 3 When, that is, the OFDM symbol number that sTTI where repeating transmission includes is 3, or indicate/it is configured to 3.Optionally, transmission alignment is repeated The boundary sTTI.

Optionally, when repeating to transmit, frequency hopping between each OFDM is supported, i.e. frequency hopping symbol-by-symbol.Or only frequency hopping 1 time, It is k for number of repetition, theA OFDM symbol andFrequency hopping between a OFDM symbol.According to configuration when frequency hopping Or the offset of instruction carries out frequency hopping, wherein k is more than or equal to 1.

Optionally, when repeating to transmit, the method for determination of RV pattern includes at least one of: (1) RV Pattern length is equal to number of repetition, such as uses { 0,0 } or { 0,3 } for number of repetition k=2, RV pattern, when weight Again k=3 is counted, RV pattern uses { 0,0,0 } or { 0,3,0 } or { 0,2,3 }.(2) RV pattern length is 2, such as { RV1, RV2 }={ 0,0 } or { 0,3 }, if sTTI includes 3 symbols, the 3rd symbol uses identical RV with the 2nd symbol, such as { RV1, RV2, RV3 }={ RV1, RV2, RV2 }={ 0,0,0 } or { 0,3,3 }.(3) according to default or configuration or instruction RV1, RV2, RV3, RV4 } in sequence be recycled, optionally, { RV1, RV2, RV3, RV4 }={ 0,0,0,0 } or { 0,2,3,1 } or { 0,3,0,3 } uses { RV1, RV2 } as number of repetition k=2, as number of repetition k=3, uses { RV1, RV2, RV3 }. (4) RV pattern is optional, { 0,0,0,0 } or { 0,2,3,1 } or { 0,3,0,3 }, can be with as number of repetition kmod2=0 It uses { 0,0,0,0 } or { 0,3,0,3 }, { 0,0,0,0 } can be used as number of repetition kmod3=0.Such as: it is secondary when repeating When number k=2, optionally, use { 0,0 } or { 0,3 }；When number of repetition=3, optionally, use { 0,0,0 }.

Optionally, when repeating to transmit, different OFDM symbols use not all the same MCS grade.Such as MCS grade is by symbol Number successively decrease.That is the MCS that symbol x is used is not more than the MCS, MCS (OS x)≤MCS (OS y), wherein from time domain that symbol y is used See that OS x is later than OS y.Optionally, when DCI instruction repeats to transmit using MCS1 in first symbol, then according to predefined or configuration Or the offset of instruction obtains MCS grade used in subsequent OFDM, it is assumed that offset=2, then basis in first OFDM symbol DCI instruction uses MCS index#5, then the 2nd OFDM symbol uses MCS index#3 when being repeated 2 times transmission.

Optionally, when repeating to transmit, different OFDM symbols are using identical MCS but use not all the same frequency domain resource Size, i.e., it is not all the same using RB quantity on frequency domain.Such as using RB quantity be incremented by symbol-by-symbol.That is the RB quantity that OS x is used No more than the RB quantity that OS y is used, wherein OS x is earlier than OS y from time domain.Optionally, when DCI indicates to repeat to transmit head RB quantity and position are used in a symbol, then according to the offset of predefined or configuration or instruction after frequency domain mirror image repeats to obtain RB quantity used in continuous symbol, it is assumed that offset=10, system bandwidth include 50 RB, then are referred in first symbol according to DCI Show that the 2nd symbol using RB#0-19 and RB#40-49 and repeats the number in RB#0-9 when being then repeated 2 times transmission using RB#0-19 According to.

The channel repetitive transmission method provided through this embodiment may be implemented to repeat in short TTI based on OFDM symbol Transmission obtains other than time domain energy storage gain, can also obtain the different redundancy versions bring coding gains of transmission, frequency domain point Diversity gain etc..So that realizing URLLC demand, lifting system spectrum efficiency with less number of repetition.

Fourth embodiment

Base station schedules terminals are repeated under transmitting between multiple Transmission Time Intervals (TTI) and in TTI based on OFDM symbol Row data use sPDSCH channel.Optionally, the OFDM symbol number that TTI includes is less, such as no more than 7 OFDM symbols, but It is not limited to that.The present embodiment is illustrated with short TTI structure in LTE system, i.e. TTI be short TTI (short TTI, Referred to as sTTI), but it is not limited to this.DL short TTI frame structure is as shown in Fig. 2, include 6 DL in 1ms subframe (Down Link) short TTI uses Pattern1 when sPDSCH is configured as originating from OFDM symbol #1 or #3；Work as sPDSCH When being configured as originating from OFDM symbol #2, Pattern2 is used.Notice that OFDM symbol number is since 0 here, i.e. 1ms subframe Middle OFDM symbol has 14, and serial number is #0 to #13.

Or base station schedules terminals repeat to pass between multiple Transmission Time Intervals (TTI) and based on OFDM symbol in TTI Defeated transmission upstream data, uses sPUSCH channel.Optionally, the OFDM symbol number that TTI includes is less, such as no more than 7 OFDM symbol, it is not limited to this.The present embodiment is illustrated with short TTI structure in LTE system, but is not limited to This.UL short TTI frame structure is as shown in figure 3, include 6 short TTI of UL (Up Link) in 1ms subframe.Pay attention to here OFDM symbol is numbered since 0, i.e., OFDM symbol has 14 in 1ms subframe, and serial number is #0 to #13.

Wherein, it when sPDSCH or sPUSCH repeats to transmit in sTTI based on OFDM symbol between sTTI, repeats to transmit secondary Number is comprising at least one value in set { 1,2,3,4,5,6,7,8,9,10,11,12,13,14 } and unit is OFDM symbol, or Person's iterative transfer times are comprising at least one value in set { 1,2,3,6 } and unit is sTTI or iterative transfer times packet Containing at least one value in set { 1,2,3,4,6,8 } and unit is sTTI.

When number of repetition unit is sTTI, the method for determination of number of repetition are as follows: by Downlink Control Information dynamic instruction, Or it is configured by high-level signaling.Repeating transmission can originate from any sTTI, or repeating transmission can be from optional sign Begin.Such as: it is identical as single sTTI scheduling when number of repetition is 1；When number of repetition is 2, i.e., continuously passed since the sTTI of scheduling Defeated 2 sTTI；When number of repetition is 3, i.e., 3 sTTI are continuously transmitted since the sTTI of scheduling；Number of repetition be 6 when, i.e., from The sTTI of scheduling starts to continuously transmit 6 sTTI；Or iterative transfer times include set { 1,2,3,4,6,8 } at least it One.

When number of repetition unit be OFDM symbol when, iterative transfer times include set 1,2,3,4,5,6,7,8,9,10, 11,12,13,14 } at least one value in.The method of determination of number of repetition are as follows: the OFDM symbol for including equal to one or more sTTI Number mesh is perhaps configured by Downlink Control Information dynamic instruction or by high-level signaling.Repeating transmission can be from any The primary sign of sTTI originates, or originates from optional sign.Such as: when number of repetition is 1, accorded with using the last one in sTTI Number or sTTI in first symbol, or indicate/be configured to 1.When number of repetition is 2, that is, sTTI where repeating transmission includes OFDM symbol number is 2, or indicate/it is configured to 2.When number of repetition is 3, that is, repeat the OFDM symbol that transmission place sTTI includes Number is 3, or indicate/it is configured to 3.

Optionally, at least one of the transmission alignment boundary sTTI, boundary of time slot, sub-frame boundary are repeated.For repeating to transmit When number is using sTTI as unit, when number of repetition is 3, it can only be originated from sTTI#0 or sTTI#3.Optionally, work as number of repetition When being 6, it can only be originated from sTTI#0.

Optionally, frequency hopping can only configure one kind with alternative in frequency hopping and sTTI between sTTI.Optionally, when repetition is transmitted When number is using sTTI as unit, frequency hopping between each sTTI is supported, i.e., by sTTI frequency hopping.Or only frequency hopping 1 time, it is secondary for repeating Number is k, theA sTTI andFrequency hopping between a sTTI.It is carried out when frequency hopping according to the offset of configuration or instruction Frequency hopping.When iterative transfer times are using OFDM symbol as unit, frequency hopping between each OFDM is supported, i.e. frequency hopping symbol-by-symbol.Or Only frequency hopping 1 time is k for number of repetition, theA OFDM symbol andFrequency hopping between a OFDM symbol.Frequency hopping When according to configuration or instruction offset carry out frequency hopping, wherein k be equal to be equal to 1.

Optionally, when repeating to transmit, the method for determination of RV pattern includes at least one of: (1) RV Pattern is repeated by the period of sTTI, i.e. uses RV pattern in sTTI, use identical RV pattern between sTTI.It can Choosing, sTTI#n+1 is identical as used in sTTI#n using RV cycling, such as uses { 0,2 } in first sTTI, the { 0,2 } is continued to use in two sTTI.Or optional, sequence in { RV1, RV2, RV3, the RV4 } of predefined or high-rise configuration It uses, such as { 0,0,0,0 } or { 0,2,3,1 } or { 0,3,0,3 }, in the sTTI of 2os, RV cycling use RV1, RV2 }, in the sTTI of 3os, RV cycling uses { RV1, RV2, RV3 }.(2) RV is recycled based on OFDM symbol pattern.That is RV pattern is recycled according to the pattern { RV1, RV2, RV3, RV4 } of default or configuration or instruction, optional , { RV1, RV2, RV3, RV4 }={ 0,0,0,0 } or { 0,2,3,1 } or { 0,3,0,3 }, such as: 2 are used when repeating transmission When sTTI, if default pattern is { 0,2,3,1 }, sTTI#n has 3 symbols, and sTTI#n+1 has 2 symbols, repeats 2 sTTI, Then sTTI#n uses { 0,2,3 }, and sTTI#1 uses { 1,0 }.(3) RV is identical in sTTI, and RV pattern is used between sTTI.It is optional , RV pattern is { RV1, RV2, RV3, RV4 }, optionally, { 0,0,0,0 } or { 0,2,3,1 } or { 0,3,0,3 }, such as It repeats transmission and uses 2 sTTI, then each symbol uses RV1 in first sTTI, and each symbol makes in second sTTI With RV2, if illustrating default pattern is { 0,2,3,1 }, sTTI#n has 3 symbols, and sTTI#n+1 has 2 symbols, repeats 2 A sTTI, then sTTI#n uses { 0,0,0 }, and sTTI#1 uses { 2,2 }；It for example repeats to transmit again to use 3 sTTI, then first Each symbol uses RV1 in sTTI, and each symbol uses RV2 in second sTTI, and each symbol is equal in third sTTI Use RV3；Transmission is for example repeated again and uses 6 sTTI, then each symbol uses RV1, second sTTI in first sTTI In each symbol use RV2, each symbol uses RV3 in third sTTI, and each symbol uses in the 4th sTTI Each symbol uses RV1 in RV4, the 5th sTTI, and each symbol uses RV2 in the 6th sTTI；I.e. as number of repetition k When less than RV pattern length, in order using preceding k RV in RV pattern；I.e. when number of repetition k is greater than RV When pattern length, RV pattern is recycled in order.Or it is optional, RV pattern is directed to different repetitions Number defines respectively, such as k=2 sTTI of number of repetition, RV pattern using { RV1, RV2 }={ 0,0 } or 0, 3 }, as k=3 sTTI of number of repetition, RV pattern using { RV1, RV2, RV3 }={ 0,0,0 } or { 0,3,0 } or 0,2, 3}。

Optionally, when repeating to transmit, different sTTI are used using symbol each in not all the same MCS grade and sTTI Identical MCS.Such as MCS grade is successively decreased by sTTI and each symbol M CS is identical in sTTI.The MCS that i.e. sTTI x is used is not more than The MCS that sTTI y is used, MCS (sTTI x)≤MCS (sTTI y), wherein sTTI x is later than sTTI y from time domain.It is optional , when DCI instruction repeats to transmit using MCS1 in first sTTI, then after being obtained according to the offset of predefined or configuration or instruction MCS grade used in continuous sTTI, it is assumed that offset=2 then uses MCS index#5 according to DCI instruction in first sTTI, then The 2nd sTTI uses MCS index#3 when being repeated 2 times transmission.Optionally, when repeating to transmit, distinct symbols in same sTTI Using between not all the same MCS grade and each sTTI use identical MCS pattern, such as MCS grade each sTTI it Between it is identical but successively decrease in same sTTI by OFDM symbol.That is the MCS that symbol x is used is not more than the MCS, MCS that symbol y is used (OS x)≤MCS (OS y), wherein OS x is later than OS y from time domain.

Optionally, when repeating to transmit, different sTTI are big using not all the same frequency domain resource using identical MCS It is small, i.e., it is not all the same using RB quantity on frequency domain.Such as using RB quantity by sTTI be incremented by.That is the RB quantity that sTTI x is used No more than the RB quantity that sTTI y is used, wherein sTTI x is earlier than sTTI y from time domain.Optionally, when DCI indicates to repeat It transmits using RB quantity and position in first sTTI, is then repeated according to the offset of predefined or configuration or instruction in frequency domain mirror image Obtain RB quantity used in subsequent sTTI, it is assumed that offset=10, system bandwidth include 50 RB, then basis in first sTTI DCI instruction uses RB#0-19, then the 2nd sTTI using RB#0-19 and RB#40-49 and repeats RB#0-9 when being repeated 2 times transmission In data.

The channel repetitive transmission method provided through this embodiment may be implemented obtaining repetition transmission time domain energy accumulation Other than gain, the different redundancy versions bring coding gains of transmission, frequency diversity gain etc. can also be obtained.So that with less Number of repetition realizes URLLC demand, lifting system spectrum efficiency.

5th embodiment

Any one in based on the above embodiment, optionally, when sPDSCH or sPUSCH are based on OFDM symbol transmission, pilot tone It is multiple in FDM (being Frequency Division Multiplexing, frequency division multiplex) mode in OFDM symbol with data With.

OFDM symbol repetition is based in single sTTI when repeating transmission, and number of repetition is equal to the OFDM symbol that sTTI includes Support that pilot tone is shared when quantity, between admissible mark.When for not frequency hopping, DMRS (DeModulation Reference Signal, demodulated reference signal) shared pattern is ' RD ' or ' RDD ', i.e., it when sTTI includes 2 symbols or is repeated 2 times When, first OFDM symbol includes DMRS, and second OFDM symbol does not include DMRS, be abbreviated as ' RD ', i.e., ' R ' indicates the symbol Indicate that the symbol does not include DMRS containing DMRS, ' D '；When sTTI includes 3 symbols or the when of being repeated 3 times, first OFDM are accorded with It number include DMRS, second OFDM symbol and third OFDM symbol are abbreviated as ' RDD ' not comprising DMRS.When for frequency hopping, In single sTTI, only there is shared possibility, 2 OFDM symbols identical for frequency domain position, using ' RD ' figure for 3 symbols Sample.

When repeating transmission and repeating to transmit in multiple sTTI, if only frequency hopping between sTTI, pilot tone be not total for frequency hopping in sTTI Enjoy in above-mentioned list sTTI not frequency hopping when repeat transmit when method.If frequency hopping in sTTI and not frequency hopping, pilot tone are total between sTTI Enjoy mode are as follows: when number of repetition is 2 or 3 sTTI, only in first sTTI in the OFDM symbol of different frequency domain positions There is DMRS, DMRS is not included in remaining OFDM symbol.Remarks: sPUSCH could support up 3 sTTI and share DMRS, and sPDSCH is most 2 sTTI are shared.Table 1 is by taking sPUSCH as an example, frequency hopping 1 time in sTTI, wherein the frequency hopping frequency domain position for indicating different of not going together, OS#0 and OS#1 contains DMRS respectively in sTTI#0, and OS#2, OS#4, OS#6 share the DMRS in OS#1, and OS#3, OS#5 are shared DMRS in OS#0.If indicating sPDSCH, R is needed in sTTI#2, or R is placed on to the intermediate position sTTI of 3 sTTI, But it will affect and demodulate symbol-by-symbol.Table 2 is similar with table 1, difference be symbol-by-symbol frequency hopping and always from the boundary sTTI originate frequency hopping, I.e. OS#2, OS#3, OS#5 share the DMRS in OS#0, and OS#4, OS#6 share the DMRS in OS#1.Table 3 is similar with table 2, different Place is that frequency hopping, i.e. OS#2, OS#4, OS#6 share the DMRS in OS#0 symbol-by-symbol, and OS#3, OS#5 share the DMRS in OS#1. Table 4 is similar with table 1, and difference is that each symbol is respectively positioned on different frequency domain positions in sTTI.

Table 1

Table 2

Table 3

Table 4

Pilot tone is shared in a kind of channel repetitive transmission method through this embodiment, may be implemented when obtaining repetition transmission Other than the energy accumulation gain of domain, data transmission spectrum efficiency or number can also be promoted by the shared pilot-frequency expense that reduces of pilot tone According to transmission reliability.

Sixth embodiment

Any one in based on the above embodiment, optionally, sPDSCH are based on when single OFDM symbol is transmitted or are based on When sTTI is transmitted, the uplink control channel that HARQ-ACK is fed back to it is transmitted using single OFDM symbol.Single OFDM symbol at this time Number uplink control channel use the sPUCCH based on sequence.

Optionally, it when sPDSCH, which is based on single OFDM symbol, to be transmitted and only repeat to transmit in sTTI, that is, repeats to transmit Number is equal to the OFDM symbol number that sTTI includes, and determines carrying hybrid automatic repeat-request response according to n+k Symbol Timing Character position where the sPUCCH of HARQ-ACK, such as by taking k=4 as an example, by taking DL sTTI pattern 1 as an example, carry HARQ- Character position where the sPUCCH of ACK is at least one of symbol #0,3,6,8,10,12.

Optionally, when sPDSCH, which is based on single OFDM symbol, to be transmitted and do not repeat to transmit, due to the boundary sTTI to be aligned I.e. from sTTI primary sign location transmission, sign bit where determining the sPUCCH of carrying HARQ-ACK according to n+k Symbol Timing It sets, such as by taking k=4 as an example, by taking DL sTTI pattern 1 as an example, character position where carrying the sPUCCH of HARQ-ACK is At least one of symbol #1,4 (or 5), 7,9,11,13.

In sPDSCH single codeword and single carrier scene, the ACK/NACK letter of single OFDM symbol sPUCCH carrying 1bit Breath, distributes two sPUCCH resources at this time for ACK and NACK respectively, such as using identical basic sequence and using different in identical RB CS, that is, cyclic shift.

Optionally, for single OFDM symbol sPUCCH, it is assumed that its resource allocation in short TTI based on sequence SPUCCH can once determine the resource on two symbols, or only determine the single OFDM symbol of carrying HARQ-ACK The resource of sPUCCH.Then resource using mode includes at least one of on other symbols in sTTI: (1) distributing to URLLC SR It uses, such as supports single OFDM symbol SR, distribute single OFDM symbol sPUCCH resource for SR, it optionally can be in all symbols Number distribution, perhaps only where the sPUCCH of non-bearing HARQ-ACK symbol distribution or all symbols distribute but held non- The SR resource of symbol distribution is no less than in symbol point where the sPUCCH of carrying HARQ-ACK where carrying the sPUCCH of HARQ-ACK The SR resource matched.(2) as single OFDM symbol sPUCCH and short TTI sPUCCH resource difference, when use priority original Single OFDM symbol sPUCCH is then transmitted, the HARQ-ACK of short TTI and/or 1ms TTI can be transmitted on other symbols, this When it is optional, at most carried on other symbols 2bit and for sequence be based on short Physical Uplink Control Channel sequence-based In sPUCCH, i.e. two symbol sPUCCH in mono- symbol of mono- symbol of stop/drop or three symbol sPUCCHstop/drop. (3) when single OFDM symbol sPUCCH is identical as short TTI sPUCCH resource, other symbols still transmit short TTI SPUCCH.Be equivalent to simultaneous transmission and sPUCCH preferentially occupy where resource in single OFDM symbol.(4) in a pair of of hop It is used in RB, on other symbols on the hop RB matched with single OFDM symbol sPUCCH and transmits sPUSCH.(5) on other symbols SPUSCH is transmitted using RB identical with single OFDM symbol sPUCCH.(6), (4) or (5) are based on, when single OFDM symbol When sPUCCH is located at first symbol of sTTI, sPUSCH can be used as the redundancy section of sPUSCH in the latter sTTI；Work as list When a OFDM symbol sPUCCH is located at the last symbol of sTTI, sPUSCH can be used as the superfluous of sPUSCH in previous sTTI Remaining part point.When sPUCCH is located at the intermediate symbols of 3 symbol sTTI, sPUSCH can make when first symbol transmission in sTTI It can be used as when last symbol is transmitted in sTTI for the redundancy section and/or sPUSCH of sPUSCH in previous sTTI The redundancy section of sPUSCH in the latter sTTI.

Optionally, single OFDM symbol sPUCCH and sPUSCH clash handle mode include at least one of: (1) when matching SPUSCH can only be transmitted and include with the simultaneous transmission then single OFDM symbol sPUCCH and sPUSCH of simultaneous transmission, otherwise by being set to UCI of sPUCCH.Here UCI is HARQ-ACK information.(2) when be configured to not support simultaneous transmission and sPUSCH support it is single When OFDM symbol is transmitted, single OFDM symbol sPUCCH is transmitted on the symbol of conflict, transmission is based on single on remaining symbol OFDM symbol repeats the sPUSCH of transmission.(3) when being configured to not support simultaneous transmission and sPUSCH does not support single OFDM symbol When transmission, i.e., URLLC sPUSCH is identical as sTTI sPUSCH at this time, at this time clash handle with single OFDM symbol sPUCCH with STTI sPUSCH situation.

Optionally, single OFDM symbol sPUCCH and short TTI sPUCCH clash handle mode include it is following at least it One: (1) transmitting single OFDM symbol sPUCCH, abandon or stop transmission sTTI sPUCCH.Optionally, wherein sTTI sPUCCH The HARQ-ACK information of middle carrying is transmitted in single OFDM symbol sPUCCH.Optionally, it is carried in support sTTI sPUCCH HARQ-ACK is bound using space.(2) it in the single OFDM symbol sPUCCH of symbol transmission where single OFDM symbol sPUCCH, loses Abandon or stop transmission sTTI sPUCCH；STTI sPUCCH is transmitted in the symbol of not single OFDM symbol sPUCCH transmission. That is, sTTI sPUCCH destroys the sTTI sPUCCH on conflict symbol when conflicting with single OFDM symbol sPUCCH, do not rush Still sTTI sPUCCH is transmitted on prominent symbol, suitable for the sPUCCH based on sequence.(3) single OFDM symbol is transmitted SPUCCH abandons or stops transmission sTTI sPUCCH.Optionally, when the HARQ-ACK information carried in sTTI sPUCCH is When being 1bit after the HARQ-ACK information binding carried when 1bit or in sTTI sPUCCH, in single OFDM symbol sPUCCH Middle transmission.(4) single OFDM symbol sPUCCH is transmitted, transmission sTTI sPUCCH is abandoned or stop.Optionally, work as sTTI In sPUCCH also while when carrying the HARQ-ACK information of 1ms, wherein the HARQ-ACK of 1ms can be with before being carried to sPUCCH It is PUCCH or PUSCH carrying, processing mode includes at least one of: the HARQ- of the HARQ-ACK and 1ms of (4-1) sTTI ACK information is not transmitted in single OFDM symbol sPUCCH.Optionally, single OFDM symbol sPUCCH carries HARQ- at this time ACK information is 2bit.(4-2) transmits sTTI HARQ-ACK information, abandons the HARQ-ACK information of 1ms.Optionally, only will The sTTI HARQ-ACK information of 1bit, which is placed in single OFDM symbol sPUCCH, to be carried, and single OFDM symbol sPUCCH is held at this time It is 2bit that information carrying breath is increased by 1bit.The HARQ-ACK information of 1ms is placed in single OFDM symbol sPUCCH and transmits by (4-3), STTI HARQ-ACK is sent on other symbols, and the channel of carrying sTTI HARQ-ACK is the sPUCCH based on sequence.It can Choosing, when being sent on other symbols using being sent in the resource matched with single OFDM symbol sPUCCH, i.e., a pair of of frequency hopping RB Resource.Optionally, the HARQ-ACK information of 1ms is 1bit, when single OFDM symbol sPUCCH carrying information by 1bit increase be 2bit.Optionally, the information sent on other symbols only includes sTTI HARQ-ACK information, or includes sTTI HARQ- The HARQ-ACK information of ACK and 1ms.The HARQ-ACK information of sTTI is placed in single OFDM symbol sPUCCH and transmits by (4-4), STTI sPUCCH is sent on other symbols, which is the sPUCCH based on sequence.Optionally, in other symbols Using being sent in the resource matched with single OFDM symbol sPUCCH when upper transmission, i.e., a pair of of frequency hopping RB resource.Optionally, sTTI When HARQ-ACK information is 1bit, it is 2bit that single OFDM symbol sPUCCH carrying information is increased by 1bit.Optionally, at other The information sent on symbol only includes the HARQ-ACK information of 1ms, or the HARQ-ACK comprising sTTI HARQ-ACK and 1ms Information.(4-5) binds the HARQ-ACK information of the HARQ-ACK of sTTI and 1ms, that is, xor operation is used, by the letter after binding Breath is carried in single OFDM symbol sPUCCH, and optionally, sTTI HARQ-ACK information and 1ms HARQ-ACK are 1bit When, it is still 1bit after binding, it is 2bit that single OFDM symbol sPUCCH carrying information is increased by 1bit.

Optionally, single OFDM symbol sPUCCH and 1ms PUCCH clash handle mode include at least one of: (1) Single OFDM symbol sPUCCH is transmitted, transmission 1ms sPUCCH is abandoned or stop.Optionally, it is wherein carried in 1ms PUCCH HARQ-ACK information is transmitted in single OFDM symbol sPUCCH.Optionally, the HARQ-ACK letter only carried in 1ms PUCCH It supports to transmit in single OFDM symbol sPUCCH when breath is 1bit.Optionally, the HARQ-ACK carried in 1ms PUCCH is supported It is bound using space.(2) single OFDM symbol sPUCCH is transmitted on conflict symbol, in remaining symbol transmission 1ms PUCCH, i.e., It is equivalent to that symbol destroyed and conflicted in 1ms PUCCH with single OFDM symbol sPUCCH.Optionally, when 1ms PUCCH with Single OFDM symbol sPUCCH conflict symbol reaches k symbol or more, abandons or stop transmission 1ms PUCCH.Wherein, k is optional , it is one of 2,3,4,5,6,7,8,9,10.

Optionally, single OFDM symbol sPUCCH and short TTI sPUSCH clash handle mode include it is following at least it One: (1) transmitting sPUCCH, abandon or stop transmission sTTI sPUSCH.Optionally, it is wherein carried in sTTI sPUSCH HARQ-ACK information is transmitted in single OFDM symbol sPUCCH.Optionally, the HARQ-ACK carried in sTTI sPUSCH is supported It is bound using space.(2) when single OFDM symbol sPUCCH is located at sTTI last symbol, by single OFDM symbol The UCI information carried in sPUCCH, which is placed in sPUSCH, to be transmitted, i.e. piggyback to sPUSCH, optionally, sTTI the last one Symbol is not symbol where DMRS.(3) when single OFDM symbol sPUCCH is located at non-last symbol in sTTI, transmission is single A OFDM symbol sPUCCH abandons or stops transmission sTTI sPUSCH.Optionally, it supports the 1bit HARQ- in sPUSCH ACK information is placed in single OFDM symbol sPUCCH and transmits.

A kind of channel repetitive transmission method through this embodiment may be implemented obtaining downlink traffic channel repetition transmission Other than time domain energy storage gain, when can also further decrease HARQ by using the feedback information that single OFDM symbol is transmitted Prolong.So that HARQ can be supported to retransmit in defined time delay bounds, lifting system spectrum efficiency.

7th embodiment

For the down control channel NR PDCCH in 5G system, executes and repeat the transmission possible mode of repetition such as Under:

Method 1, by predefined, radio resource control RRC configuration, Downlink Control Information DCI instruction, priority rule At least one determine at least one following manner:

(mode 1) repeats to transmit between multiple search space of identical control resource set Coreset different moments repetition；

(mode 2) repetition between the identical search space of identical Coreset different moments；

(mode 3) repetition between multiple search space of the different moments in different Coreset；

(mode 4) repetition between the multiple search space in the same time of the phase in different Coreset；

The multiple Candidate Set candidate of (mode 5) in the search space in the same time of the phase in identical Coreset Between repetition；

(mode 6) repetition between the multiple search space in the same time of the phase in identical Coreset；

(mode 7) determines the user's dedicated search spatial index USS ID and sequence for repeating transmission；

(mode 8) determines the same USS ID difference initial position sequence for repeating transmission；

(mode 9) is in the USS of all configurations according to ID sequence repetition.

Specifically, for (mode 1) in identical control resource set (Coreset), multiple search of different moments It repeats to transmit between space.Multiple search spaces are configured in the same Coreset at this time.Optionally, each SS has 1 A primary sign and time-domain symbol position difference；Optionally, each SS has multiple primary signs and time-domain symbol position is not Together.For being repeated twice, NR PDCCH repeats to transmit in SS1 and SS2, since the configuration of SS1 and SS2 may be identical or not Together, it is contemplated that use same polymeric grade and phase in SS1 and SS2 when joint account complexity, preferably PDCCH repetition Same Candidate Set.As shown in figure 4, Coreset duration duration=1, SS1 primary sign is the 1st OFDM symbol in slot Number, SS2 primary sign is the 2nd OFDM symbol in slot.

Specifically, repeating to pass between identical Coreset, the identical search space of different moments for (mode 2) It is defeated.1 search space is configured in the same Coreset at this time.Optionally, 1 SS has 1 starting character within 1 period Number, the primary sign in different cycles regards different moments (i.e. multiple occasion) as；Optionally, 1 SS is in a week There are multiple primary signs in phase, regard multiple occasion as.For being repeated twice, NR PDCCH is at the time of SS1 1 and the moment 2 in repeat transmit, it is contemplated that when joint account complexity, preferably PDCCH repetition at the time of SS1 1 He Moment 2 uses same polymeric grade and same candidate collection.As shown in figure 5, Coreset duration duration=1, SS1 Beginning symbol is the 1st OFDM symbol and the 2nd OFDM symbol in slot.

Specifically, as shown in fig. 6, for (mode 3) the different moments of different Coreset multiple search space Between repetition.At this point, the multiple SS primary signs for belonging to 1 or more Coreset are not all the same.Optionally, different SS is belonging respectively to different Coreset and primary sign is different；Optionally, different SS are belonging respectively to different Coreset and starting character Number be 1 or more time-domain symbol position.For being repeated twice, NR PDCCH in SS1 and SS2 repeat transmit, at this time SS1 and SS2 is belonging respectively to different Coreset.Coreset configuration at this time and search space configuration may be different from.It is preferred that , same polymeric grade and same candidate collection are used in SS1 and SS2 when PDCCH repetition.

Specifically, as shown in fig. 7, for (mode 4) different Coreset phase multiple search space in the same time Between repetition.The different SS of identical primary sign each belong to different Coreset.Different Corset can be with frequency domain model It encloses and/or time domain duration is not all the same.Frequency domain repetition can be supported at this time.At this time with frequency domain repetition weight For answering twice.Coreset configuration at this time and search space configuration may be different from.Preferably, PDCCH Same polymeric grade and same candidate collection are used in SS1 and SS2 when repetition.

Specifically, multiple candidates for (mode 5) in the search space in the same time of the phase in identical Coreset Collect repetition between candidate.Optionally, weight is carried out using the different Candidate Sets of same polymerization grade when repeating to transmit Multiple transmission, number of repetition are equal to the Candidate Set number used；Optionally, weight is carried out using each Candidate Set of maximum polymerization grade Multiple transmission；Optionally, it is used after each Candidate Set of same polymerization grade being polymerize；Optionally, all polymerization grades are not made It is used after Candidate Set polymerization.

Specifically, for (mode 6) between the multiple search space in the same time of the phase in identical Coreset repetition.Multiple SS primary signs are identical in identical Coreset at this time.It is equivalent at this time and repeats to transmit between different SS (but to avoid lap position) is equivalent to frequency domain repetition.But it is also not excluded for repeating in same SS using different candidate.It can Choosing, it carries out repeating transmission using the different Candidate Sets of the same polymerization grade of different SS when repeating to transmit, number of repetition is equal to and makes Candidate Set number；Optionally, it carries out repeating transmission using each Candidate Set of maximum polymerization grade；It optionally, will be same It is used after each Candidate Set polymerization of polymerization grade；Optionally, it will be used after the not used Candidate Set polymerization of all polymerization grades.

Specifically, as shown in figure 8, when search space configuration quantity it is more when or same search space configure starting character When number position is more, determining that specific search space carries out repeating to transmit includes at least one following manner: being determined The USS ID and sequence (mode 7) of repetition；According to ID sequence repetition (mode 9) in the USS of all configurations. Such as: it is preferential according to frequency domain for being repeated twice, then it repeats to transmit in SS1 and SS3；It is preferential according to time domain, then both It can repeat to transmit in SS1 and SS2, SS1 and SS4, SS3 and SS4, SS3 and SS2.Therefore when time domain is preferential, further may be used also To distinguish, whether identical Coreset is preferential.So the search space for repeating transmission can be chosen by preset principle, such as just At least one of formula 1-6；Or the USS ID used and sequence are repeatedly transmitted by configuring determination, such as be configured with SS1-4, match It sets repetition transmission 2 times and uses SS1 and SS2；Or the USS of all configurations is to use, according to ID sequence in the USS of all configurations It repeats to transmit.

Specifically, for mode 8, when search space is configured with multiple primary sign positions in a slot, at this time It repeats to transmit between the search space that the different initial positions of same SS ID determine, what each primary sign determined at this time searches Rope space is all the same in addition to remaining different configuration of primary sign.It repeats to transmit the same USS it needs to be determined that repetition at this time ID difference initial position sequence.Such as possible mode: (alt.1) repeats to pass without additional configuration, according to primary sign sequence It is defeated；(alt.2) the primary sign position used is repeatedly transmitted in configuration in same all primary signs of SS ID.

Optionally, when carrying out repeating to transmit using at least one of described mode 1,2,3,4,6, at 1 when repeating to transmit 1 Candidate Set is used only in 1 moment of search space；Alternatively, being repeated using at least one of described mode 2,4,6 When transmission, 1 moment when repeating to transmit in 1 search space uses multiple Candidate Sets.

Optionally, the priority rule includes at least one of:

When using the maximum polymerization grade of configuration, the mode 2 is used；

When using the non-maximum polymerization grade of configuration, the mode 5 is used；

When using the maximum polymerization grade of configuration, the mode 4 is used；

When configuring 1 Coreset, the mode 2 or the mode 5 are used；

When configuring 1 search space, the mode 2 or the mode 5 are used；

In the search space of the same type of configuration, the mode 5 is used；

In the search space of the same type of configuration, the mode 2 is used；

In the search space of the same type of configuration, the mode 4 is used.

Method 2: repetition, which is repeatedly transmitted, in same search space is equal to place in the search space time domain used The duration of Coreset is multiplied by number of repetition or maximum number of repetitions.By taking maximum number of repetitions Rmax as an example, definition search is empty Between time domain length be duration × Rmax.Wherein in the time domain, search space only determines primary sign, and time domain length is by place The duration of Coreset is determined.REG to CCE mapping, REG bundling operation at this time is unaffected, still only exists It is executed in Coreset duration.It introduces Rmax and defines search space, is i.e. search space parameter introduces Rmax, and PDCCH is one The number of repetition of such as at least one of Rmax, Rmax/2, Rmax/4, Rmax/8 can be executed in a search space.

A kind of channel repetitive transmission method through this embodiment may be implemented obtaining down control channel repetition transmission Other than time domain energy storage gain, by using the resource of frequency domains different in identical time domain can also repeat to further Reduce HARQ time delay.Optional support carries out repeating transmission as granularity using search space, when transmitting at this time without redefining repetition Search space, realize single transmission and repeat transmission using same configuration search space.

8th embodiment

When transmitting granularity includes at least one of Candidate Set, sTTI, OFDM symbol, search space, repetition is transmitted through Predefined, RRC configuration, DCI instruction, priority rule determine at least one of:

Repetition (repeating to transmit) in the different search spaces of (mode 1) between different sTTI, search is empty at this time Between time domain length be only limited in 1 sTTI；

(mode 2) repetition between the different Candidate Sets in search space same in the same sTTI；

(mode 3) repetition between different search space includes search space in same sTTI；

Repetition in the same search space of (mode 4) between different sTTI, search space time domain is long at this time Degree is equal to R sTTI, and wherein R indicates number of repetition or maximum number of repetitions；

(mode 5) repeats to transmit in sTTI based on OFDM symbol, wherein as configuration list symbol CRS-based sPDCCH When, it repeats transmission and introduces list symbol CRS-based sPDCCH in non-first OFDM symbol in sTTI；When configuring two symbols When CRS-based sPDCCH, repeats transmission and respectively use a Candidate Set in the first two symbol in sTTI, in third symbol List symbol CRS-based sPDCCH is introduced when middle (if there is) repeats to transmit.

Specifically, it is as follows that possible mode is transmitted in similar control channel repetition in LTE URLLC:

Here it is illustrated by taking the channel that the channel that LTE URLLC is used is short TTI as an example.Downlink is controlled, Short TTI uses PDCCH/SPDCCH.

Method 1: iterative transfer times are equal to the sTTI number used.

Carry the PDCCH/SPDCCH of the same sDCI only transmission primaries in each sTTI.When repeating to transmit, need Multiple sTTI are used to carry out repeating transmission.I.e. Rmax unit is sTTI, and is not comprised in the configuration of search space. Since sTTI index#1-5 is not distinguished in search space configuration, and it is preferable to use identical AL and same candidate collection.It is excellent The PDCCH search space of choosing carrying sDCI will at least configure repetition and transmit the AL and corresponding candidate collection used.

Method 2: it repeats to transmit and do not change search space definition in the same search space.

At this time no matter PDCCH or sPDCCH, the same search space using multiple candidate repeat transmit. I.e. iterative transfer times are equal to the candidate number used.It is preferred that repeating transmission uses the different candidate of identical AL. It is preferred that can support that frequency domain repeats or time domain repeats.When 1 Candidate Set is only located at single OFDM symbol, can support at this time Time domain repeats frequency domain can also be supported to repeat；When 1 Candidate Set is located at multiple OFDM symbols, frequency domain is supported to repeat at this time.

Method 3: iterative transfer times are equal to the search space number used.

Because sTTI#1-5 can configure 1-2 set, and because search space is defined in set, when repetition When transmission is using search space as unit, each sTTI could support up 2 repetitions.Since sTTI#0 uses PDCCH, at most prop up Hold 1 repetition.At this time relative to method 1, spread scenarios are that configuration supports 2 set and supports to repeat to transmit in different set. At this time in addition to supporting time domain to repeat, also frequency domain is supported to repeat.

Method 4: application method 1 and search space is redefined.

That is search space definition includes time domain number of repetition Rmax and starting sTTI.It is preferred that starting sTTI is any STTI, or using period M as granularity, each cycle allows primary starting sTTI.Search space configures AL and candidate at this time When, it is suitable for all sTTI, does not repartition sTTI#0 and sTTI#1-5.

Method 5: it repeats to transmit symbol-by-symbol.

For single symbol CRS-based sPDCCH, in addition to sTTI#0, permission repeats symbol-by-symbol in other sTTI.At present If being configured with CRS-based sPDCCH and time domain symbolic number is 1 in sTTI#1-5, each sTTI only has first symbol SPDCCH can be transmitted.In view of URLLC characteristic, support that repeatedly transmission is most advantageous to time delay symbol-by-symbol, it at this time can in 1 sTTI To support 2-3 repetition, it is equivalent in sTTI in non-first symbol and is also introduced into single symbol CRS-based sPDCCH. Therefore for method 5, when configuring the CRS-based sPDCCH of single symbol, Rmax unit is OS at this time, preferably The symbolic number that repetition times=sTTI includes.

For two symbol CRS-based sPDCCH, in addition to sTTI#0, permission repeats symbol-by-symbol in other sTTI.When matching It is similar with method 2 in 2OS-sTTI when being set to two symbol CRS-based sPDCCH and allowing to repeat symbol-by-symbol, it is distinguished as institute The candidate of selection is one (special case for belonging to method 2) in each symbol；It is different from method 2 in 3OS-sTTI, In addition to respectively choosing a candidate in the first two symbol, also to be repeated, be equivalent at the 3rd in the 3rd symbol List symbol CRS-based sPDCCH is introduced in symbol.

DMRS-based sPDCCH does not support to repeat symbol-by-symbol.

Method 1,4,5 is that time domain repeats, and method 2,3 is repeated comprising frequency domain.

Optionally, repeat to transmit used method by configuring at least one of application method 1-5.

Optionally, the priority rule includes at least one of:

When configuring 1 Physical Resource Block collection PRB set, the mode 2 is used；

When configuring 2 PRB set, using the mode 3, and 1 Candidate Set is only used in each search space；

When using the maximum polymerization grade of configuration, the mode 1 is used；

When using the non-maximum polymerization grade of configuration, the mode 2 is used；

It is fixed to use the mode 4；

It is fixed to use the mode 1.

9th embodiment

Referring to FIG. 9, Fig. 9 is a kind of channel sending device composition schematic diagram that ninth embodiment of the invention provides, comprising:

Granularity confirmation module 901, for determining the transmission granularity in channel data to be transmitted；

Data transmission module 902, for carrying out the repetition transmission of data on channel based on transmission granularity.

Optionally, transmission granularity may include at least one of: between orthogonal frequency division multiplex OFDM symbol, short transmission time Every sTTI.Transmission granularity refers to that data repeat the unit-sized sent on channel, is transmission granularity with OFDM symbol, indicates The repetition of data can arrive the degree of OFDM symbol size, with sTTI be transmission granularity, then it represents that the repetition of data can arrive to The degree of the size of fixed sTTI.The size of sTTI can be it is any given, generally it includes OFDM symbol it is less, such as No more than 7 OFDM symbols, but it is not limited to this.

Iterative transfer times are the number of OFDM symbol included in a sTTI；

Iterative transfer times are configured by high-level signaling.

RV pattern is repeated by the period of sTTI；

RV pattern is recycled based on OFDM symbol；

Identical RV pattern is used in the same sTTI, is recycled between different sTTI.

Optionally, in the repetition transmission for carrying out data on channel, OFDM symbol is based in single sTTI when repeating transmission Repeatedly, when and number of repetition is equal to the OFDM symbol number in sTTI included, then the pilot tone of the OFDM symbol in sTTI can be total to It enjoys.

Optionally, when channel is short physical down Traffic Channel sPDSCH, hybrid automatic repeat-request is fed back to it and is answered The uplink control channel for answering HARQ-ACK is transmitted using single OFDM symbol.

Optionally, uplink control channel is short Physical Uplink Control Channel sPUCCH；

As the sPUCCH using single OFDM symbol transmission and using the short Physical Uplink Shared Channel of single OFDM symbol transmission When sPUSCH conflicts, sPUCCH is transmitted in the OFDM symbol of conflict, transmits sPUSCH in remaining OFDM symbol；

By the implementation of the present embodiment, the repetition that data under short transmission time interval may be implemented is sent, and may be implemented It obtains and repeats that the different redundancy versions bring coding gains of transmission, frequency can also be obtained other than transmission time domain energy storage gain Domain diversity gain etc., so that realizing URLLC demand, lifting system spectrum efficiency with less number of repetition.

Tenth embodiment

Referring to FIG. 10, Figure 10 is a kind of network equipment composition schematic diagram that eighth embodiment of the invention provides, comprising: place Manage device 101, memory 102 and communication bus 103；Communication bus 103 is for realizing between processor 101 and memory 102 Connection communication；Processor 901 is for executing the computer program stored in memory 102, to realize in foregoing embodiments The step of channel sending method, which is not described herein again.

Specifically, the network equipment in the present embodiment is base station or user equipment (UE), including mobile terminal, PC, intelligence Wearable device, server etc., or independently of the equipment other than base station and user equipment (UE).

11st embodiment

A kind of computer readable storage medium is present embodiments provided, one is stored in the computer readable storage medium Or multiple computer programs, computer program can be executed by one or more processor, to realize in foregoing embodiments Channel sending method, which is not described herein again.

Obviously, those skilled in the art should be understood that each module of aforementioned present invention or each step can be with general Computing device realizes that they can be concentrated on a single computing device, or be distributed in constituted by multiple computing devices On network, optionally, they can be realized with the program code that computing device can perform, it is thus possible to be stored in It is performed by computing device in storage medium (ROM/RAM, magnetic disk, CD), and in some cases, it can be to be different from this The sequence at place executes shown or described step, perhaps they are fabricated to each integrated circuit modules or by it In multiple modules or step be fabricated to single integrated circuit module to realize.So the present invention is not limited to any specific Hardware and software combine.

The above content is specific embodiment is combined, further detailed description of the invention, and it cannot be said that this hair Bright specific implementation is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, it is not taking off Under the premise of from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to protection of the invention Range.

Claims

1. a kind of channel transmission method, comprising:

The transmission granularity used when determining transmission；

2. channel transmission method as described in claim 1, which is characterized in that the transmission granularity includes at least one of: Orthogonal frequency division multiplex OFDM symbol, short transmission time interval sTTI, search space, time slot, mini-slot, Candidate Set.

3. channel transmission method as claimed in claim 2, which is characterized in that when the transmission granularity includes OFDM symbol, The method of determination of iterative transfer times be it is following any one:

Iterative transfer times are the number of OFDM symbol included in a sTTI；

Pass through iterative transfer times described in Downlink Control Information dynamic instruction；

The iterative transfer times are configured by high-level signaling.

4. channel transmission method as claimed in claim 2, which is characterized in that described when the transmission granularity includes sTTI The method of determination of iterative transfer times be it is following any one:

The iterative transfer times are configured by high-level signaling.

5. channel transmission method as claimed in claim 2, which is characterized in that when the transmission granularity be OFDM symbol, it is described Iterative transfer times are as unit of the sTTI.

6. such as the described in any item channel transmission methods of claim 3-5, which is characterized in that described to be counted on that channel According to repetition transmission further include: it is described repeat transmission not across at least one of lower boundary: the boundary sTTI；Boundary of time slot； Sub-frame boundary.

7. channel transmission method as described in claim 3 or 4, which is characterized in that the redundancy versions pattern for repeating transmission RV pattern length is equal to iterative transfer times.

8. channel transmission method as claimed in claim 5, which is characterized in that the determination of the RV pattern for repeating transmission Mode includes any of the following:

The RV pattern is used based on OFDM symbol in sTTI, is repeated by the period of sTTI；

The RV pattern is recycled based on OFDM symbol；

Each OFDM symbol uses identical RV in the same sTTI, and the RV is used between different sTTI pattern。

9. channel transmission method as claimed in claim 3 or 5, which is characterized in that described to carry out data on that channel When repeating to transmit, is repeated when the repetition transmission is based on OFDM symbol in sTTI, then support pilot tone to share in the sTTI.

10. channel transmission method as claimed in claim 9, which is characterized in that the weight for carrying out data on that channel When transmitting again,

Transmission repeatedly transmission, and the not frequency hopping in sTTI between multiple sTTI is repeated when described, only between sTTI when frequency hopping, then in institute The pilot tone for stating the OFDM symbol in sTTI is shared；

When not frequency hopping between repetition transmission repeatedly transmission, and the frequency hopping in sTTI between multiple sTTI, sTTI, first Pilot tone in sTTI positioned at the OFDM symbol of different frequency domain positions shares to the OFDM symbol of same frequency position in other sTTI.

11. channel transmission method as described in any one in claim 1-5, which is characterized in that when channel is short physical down industry When business channel sPDSCH, the uplink control channel that hybrid automatic repeat-request response HARQ-ACK is fed back to it is passed using single symbol It is defeated.

12. channel transmission method as claimed in claim 11, which is characterized in that described under preset feedback timing condition Time-domain position of the uplink control channel in subframe is preset 6 positions OFDM.

13. channel transmission method as claimed in claim 11, which is characterized in that the uplink control channel is short physical uplink Control channel sPUCCH；

As the sPUCCH using single OFDM symbol transmission and using the short physical uplink for repeating transmission based on single OFDM symbol When Traffic Channel sPUSCH conflicts, the sPUCCH is transmitted in the OFDM symbol of conflict, in remaining OFDM symbol described in transmission sPUSCH；

When the sPUCCH using single OFDM symbol transmission using the sPUCCH for repeating transmission based on sTTI with being conflicted, rushing Transmission is transmitted in the OFDM symbol not conflicted and is used using the sPUCCH of single OFDM symbol transmission in prominent OFDM symbol SPUCCH based on sTTI transmission.

14. channel transmission method as claimed in claim 11, which is characterized in that transmitted when use based on single OFDM symbol At most 1bit in the sPUCCH that sPUCCH is conflicted based on the sTTI sPUCCH transmitted with use, and needed to be transmitted based on sTTI HARQ-ACK is placed on when transmitting in the sPUCCH based on the transmission of single OFDM symbol, is retained in the sPUCCH that is transmitted based on sTTI HARQ-ACK is abandoned or is stopped transmission using the HARQ-ACK of the sPUCCH of single OFDM symbol transmission.

15. channel transmission method as claimed in claim 2, which is characterized in that the channel is down control channel, when described When transmission granularity includes at least one of search space search space, Candidate Set, pass through predefined, wireless heterogeneous networks RRC configuration, Downlink Control Information DCI instruction, at least one of priority rule, determine repeat transmission system be it is following at least it One:

Mode 5: between multiple Candidate Set candidate in the search space in the same time of the phase in identical Coreset repetition；

Mode 9: according to ID sequence repetition in the USS of all configurations.

16. channel transmission method as claimed in claim 15, which is characterized in that use in the mode 1,2,3,4,6 at least One of repeat when transmitting, 1 Candidate Set is used only at 1 moment of 1 search space when repeating to transmit；Alternatively, When carrying out repeating to transmit using at least one of described mode 2,4,6,1 in 1 search space when repeating to transmit Moment uses multiple Candidate Sets.

17. channel transmission method as claimed in claim 15, which is characterized in that the priority rule include it is following at least it One:

When configuring 1 Coreset, the mode 2 or the mode 5 are used；

When configuring 1 search space, the mode 2 or the mode 5 are used；

In the search space of the same type of configuration, the mode 5 is used；

In the search space of the same type of configuration, the mode 2 is used；

In the search space of the same type of configuration, the mode 4 is used.

18. channel transmission method as claimed in claim 2, which is characterized in that when the transmission granularity includes time slot or is micro- When gap, the duration duration repeatedly transmitted in the search space time domain used equal to place Coreset is secondary multiplied by repeating Several or maximum number of repetitions.

19. channel transmission method as claimed in claim 2, which is characterized in that when the transmission granularity include Candidate Set, When at least one of sTTI, OFDM symbol, search space, by predefined, RRC configuration, DCI instruction, priority rule extremely A kind of few determining repeat transmission system includes at least one of:

Mode 1: repetition in the different search spaces between different sTTI, and search space time domain length is at 1 In sTTI；

Mode 3: in repetition between difference search space in identical sTTI；

Mode 4: repetition in the same search space between different sTTI, and search space time domain length is equal to R A sTTI, wherein R indicates number of repetition or maximum number of repetitions；

Mode 5: repeating to transmit in sTTI based on OFDM symbol, wherein when configuring CRS- of single symbol based on cell reference signals When the short Physical Downlink Control Channel sPDCCH of based, repeats transmission and introduce single symbol in non-first OFDM symbol in sTTI CRS-based sPDCCH；When configuring two symbol CRS-basedsPDCCH, it is each in the first two symbol in sTTI to repeat transmission Using a Candidate Set, list symbol CRS-based sPDCCH is introduced when repeating to transmit in third symbol.

20. channel transmission method as claimed in claim 19, which is characterized in that the priority rule include it is following at least it One:

It is fixed to use the mode 4；

It is fixed to use the mode 1.

21. a kind of channel transmission apparatus characterized by comprising

Granularity confirmation module, the transmission granularity used when for determining transmission；

Data transmission module, for being based on the transmission granularity, the channel is transmitted in repetition.

22. channel transmission apparatus as claimed in claim 20, which is characterized in that the transmission granularity include it is following at least it One: OFDM symbol, sTTI, search space, time slot, mini-slot, Candidate Set.

23. a kind of network equipment, which is characterized in that including processor, memory and communication bus；

The communication bus is for realizing the connection communication between the processor and memory；

The processor is for executing the computer program stored in the memory, to realize such as any one of claim 1-20 The step of described channel transmission method.

24. a kind of computer readable storage medium, which is characterized in that be stored in the computer readable storage medium one or The multiple computer programs of person, the computer program can be executed by one or more processor, to realize such as claim 1- The step of 20 described in any item channel transmission methods.