CN107371267A

CN107371267A - A kind of data transmission method and terminal

Info

Publication number: CN107371267A
Application number: CN201610320003.2A
Authority: CN
Inventors: 鲍炜; 潘学明; 谌丽; 许芳丽
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2016-05-13
Filing date: 2016-05-13
Publication date: 2017-11-21
Anticipated expiration: 2036-05-13
Also published as: WO2017193948A1; CN107371267B

Abstract

The embodiments of the invention provide a kind of data transmission method and terminal, this method includes：When terminal UE is scheduled in subframe using the first Transmission Time Interval progress uplink data retransmission or progress upstream data initial transmission, the UE receives the uplink scheduling of the second Transmission Time Interval for same subframe；The data that the UE obtains the RB being transmitted using the second Transmission Time Interval resource are transmitted, wherein, first Transmission Time Interval is more than second Transmission Time Interval.If UE can not carry out data transmission using the resource dispatched twice simultaneously, it can be having the preferentially transmitted using the data for the RB that aforesaid way ensures to be transmitted using the second Transmission Time Interval resource, the data can be the data of delay sensitive business, such as the data of speech business, data of game service etc..

Description

A kind of data transmission method and terminal

Technical field

The present invention relates to communication technical field, more particularly to a kind of data transmission method and terminal.

Background technology

Organized as the development and change of mobile communication business demand, ITU etc. are multiple to future mobile communication system all Define higher user plane delay performance requirement.It is to reduce to shorten one of main method of user's delay performance Transmission Time Interval (TTI, Transmission Time Interval) length.In system in future communication system, The data transfer of short TTI and traditional TTI length is may be simultaneously present, specific data transmission scheme does not have also It is determined that.

In LTE system, it is scheduled between eating dishes without rice or wine, the basic time unit of resource allocation and data transfer For TTI, before Rel-13, TTI length is 1 subframe, i.e. 1ms (calls 1ms TTI in the following text).Rel-14 In, in order to preferably support delay sensitive business, LTE introduces shorter TTI (calling short TTI in the following text), short TTI length is less than 1ms；Determine at present, the up channel for supporting to transmit using short TTI comprises at least short physics Ascending control channel (s-PUCCH, Short Physical Uplink Control CHannel) and it is short physically Row shared channel (s-PUSCH, Short Physical Uplink Shared CHannel)；Support using short The down channel of TTI transmission comprises at least short Physical Downlink Control Channel (s-PDCCH, Short Physical Downlink Control CHannel) and short Physical Downlink Shared Channel (s-PDSCH, Short Physical Downlink Shared CHannel)。

In LTE, RB (Radio Bearer, radio bearer) is the base unit for carrying out QoS management. Packet with different QoS requirements is mapped on different RB and is transmitted.Such as the number of speech business It is mapped to that delay requirement is strict according to coating, but allows to transmit on the RB of part packet loss；The packet of ftp business It is mapped on the RB that delay requirement is not high but the bit error rate is very low and is transmitted.

UE air protocol stack architecture is as shown in figure 1, corresponding a pair of the PDCP (grouped datas of each RB Convergence protocol)/RLC (radio link layer control protocol) entity, different RB is concentrated in MAC layer Together, transmitted by PHY (physical layer).

With continued reference to Fig. 1, after UE MAC receives eNB uplink scheduling signaling：

If HARQ initial transmissions：UE MAC are the big of the distributed resource of this transmission according to eNB It is small, and each RB QoS demand, in each RB cachings data to be transferred amount number, the queuing of packet The factor such as duration, each RB historic transmissions speed is waited, is scheduled, determining which RB this transmits can be with Carry out data transmission, and each RB transmission how many data；Then, according to scheduling result, MAC layer to The data of scheduled each RB RLC and PDCP entity application corresponding data amounts, and to each RB RLC Certain processing is carried out with the packet that PDCP entities are sent, such as cascades, ultimately forms a MAC PDU, the transmission caching of corresponding HARQ instance entity is put into, by physical layer, is eating dishes without rice or wine to send；It is sent completely Afterwards, MAC PDU are still stored in the transmission caching of HARQ entities, the MAC in HARQ entities PDU reaches maximum transmission times, empties HARQ and sends caching；Or eNB scheduling uses the HARQ Entity carries out new initial transmission, the old MAC PDU that new MAC PDU will be covered in caching.

If HARQ is retransmitted：Data in transmission caching based on corresponding HARQ instance entity are retransmitted.

It is after UE scheduled using 1ms TTI progress uplink, if eNB perceives UE in eNB The emergency data (business for calling delay sensitive in the following text) for having high delay requirement needs to transmit, and it can be that UE is dispatched Short TTI resources.Once eNB, which is the 1ms TTI and short TTI of same UE scheduling, appears in same height Frame, then resource collision (calling 1ms TTI and short TTI collisions in the following text) occurs, as shown in Figure 2.

Inventor's discovery, in the prior art, when there is 1ms TTI and the short TTI collisions in same subframe, It can not ensure that the business of delay sensitive is having the preferentially transmitted.

The content of the invention

In view of above-mentioned technical problem, the embodiment of the present invention provides a kind of data transmission method and terminal, solves existing Have in technology when 1ms TTI in same subframe and short TTI occur and colliding, delay sensitive can not be ensured The technical problem that business is having the preferentially transmitted.

One side according to the embodiment of the present invention, there is provided a kind of data transmission method, including：

Subframe, which is scheduled in, in terminal UE carries out uplink data retransmission or progress using the first Transmission Time Interval During upstream data initial transmission, the UE receptions are for the up of the second Transmission Time Interval of same subframe Scheduling；

The data that the UE obtains the RB being transmitted using the second Transmission Time Interval resource are transmitted, Wherein, first Transmission Time Interval is more than second Transmission Time Interval.

Alternatively, use the first Transmission Time Interval progress upstream data initial when terminal UE is scheduled in subframe During transmission, methods described also includes：

The data for each radio bearer RB that the media access control MAC entity caching of the UE receives.

Alternatively, the data for each RB that the MAC entity caching of the UE receives, including：

The MAC entity of the UE according to a point expected transmission subframe, divides the data that high level is sent to RB Cached corresponding to deposit；Or

At the data that will be sent in same subframe that the MAC entity of the UE is sent to high level Reason, generates MAC PDU, and deposit corresponding HARQ instance sends caching.

Alternatively, the data for the RB that the UE acquisitions are transmitted using the second Transmission Time Interval resource are entered Row is sent, including：

If having cached the data for the RB being transmitted using the second Transmission Time Interval resource, the UE is straight The data for meeting the RB that acquisition is transmitted using the second Transmission Time Interval from caching are transmitted, no longer to High-rise request for data；Or

If the data for the RB being transmitted using the second Transmission Time Interval resource, the UE are not cached To corresponding radio link layer control protocol RLC entities or PDCP PDCP entity application numbers According to, or abandon the second Transmission Time Interval resource；Or

If the second Transmission Time Interval inadequate resource is entered with transmitting the second Transmission Time Interval resource of all uses The RB of row transmission data, then use the second Transmission Time Interval resource for passing high priority are transmitted RB data；Or

If the second Transmission Time Interval inadequate resource is provided with transmitting any one using the second Transmission Time Interval The data for the RB that source is transmitted, UE abandon using the second Transmission Time Interval resource, based on the first transmission Time interval resource carries out data transmission；Or

If there is no the data for the RB being transmitted using the second Transmission Time Interval resource, UE abandons making With the second Transmission Time Interval resource, data transmission is carried out based on the first Transmission Time Interval resource.

Alternatively, methods described also includes：

If the second Transmission Time Interval resource is transmitted using the second Transmission Time Interval resource distributing to RB after, the second Transmission Time Interval resource has residue, remaining second transmission times of the UE Interval resource transmits other RB data.

Alternatively, methods described also includes：

If the second Transmission Time Interval resource is transmitted using the second Transmission Time Interval resource distributing to RB after, the second Transmission Time Interval resource has residue, is filled using filling bit.

Alternatively, methods described also includes：

When the MAC entity of the UE obtains the second Transmission Time Interval schedule information, if it is determined that use Second Transmission Time Interval carries out the transmission of data, and the first Transmission Time Interval transmission in same subframe is Through starting, the UE stops using the transmission of the first Transmission Time Interval progress data；Or

When the MAC entity of the UE obtains the second Transmission Time Interval schedule information, if it is determined that use Second Transmission Time Interval carries out the transmission of data, and the first Transmission Time Interval transmission in same subframe is still Do not start, the UE abandons carrying out the transmission of data using the first Transmission Time Interval.

Alternatively, methods described also includes：

In the second Transmission Time Interval resource start time of subframe, the UE is proceeded by using the second transmission Time interval carries out the transmission of data.

Alternatively, methods described also includes：

After the data of corresponding first Transmission Time Interval in caching are eating dishes without rice or wine to complete HARQ transmission, in caching Empty or covered and be deleted or update by new data.

Alternatively, the HARQ transmission is that HARQ is just passed or HARQ is retransmitted.

Alternatively, methods described also includes：

For being abandoned the data for using the first Transmission Time Interval to transmit, the UE shows according to MAC entity There is mechanism to generate media access control protocol data unit MAC PDU, deposit to the high-rise data for applying obtaining HARQ sends caching, and the MAC PDU are retransmitted using retransmission resource.

Alternatively, methods described also includes：

If all no up data to be transferred of all RB being transmitted using the second Transmission Time Interval resource, The UE abandons using the second Transmission Time Interval resource, is continuing with the progress of the first Transmission Time Interval resource Data transfer.

Alternatively, each RB is mapped to the first Transmission Time Interval resource or the second Transmission Time Interval money Source, or each RB mappings provide to the first Transmission Time Interval resource and the second Transmission Time Interval simultaneously Source.

According to the other side of the embodiment of the present invention, a kind of terminal is additionally provided, including：

Receiving module, line number is carried out using the first Transmission Time Interval for being scheduled in subframe in terminal UE During according to retransmitting or carry out upstream data initial transmission, the second Transmission Time Interval for same subframe is received Uplink scheduling；Sending module, for obtaining the RB's being transmitted using the second Transmission Time Interval resource Data are transmitted, wherein, first Transmission Time Interval is more than second Transmission Time Interval.

Alternatively, the terminal also includes：

Cache module, for carrying out upper line number using the first Transmission Time Interval when terminal UE is scheduled in subframe During according to initial transmission, each radio bearer RB received data are cached.

Alternatively, the cache module is further used for：

By the data that high level is sent according to a point expected transmission subframe, divide and cached corresponding to RB deposits；Or

The data sent in same subframe are handled to what high level was sent, MAC PDU is generated, deposits Enter corresponding HARQ instance and send caching.

Alternatively, the sending module is further used for：

If the data for the RB being transmitted using the second Transmission Time Interval resource are cached, directly from caching The middle data for obtaining the RB being transmitted using the second Transmission Time Interval are transmitted, and are no longer applied to high level Data；Or

If not caching the data for the RB being transmitted using the second Transmission Time Interval resource, E is to correspondingly Radio link layer control protocol RLC entities or PDCP PDCP entity request for data, or Person abandons the second Transmission Time Interval resource；Or

If the second Transmission Time Interval inadequate resource is provided with transmitting any one using the second Transmission Time Interval The data for the RB that source is transmitted, abandon using the second Transmission Time Interval resource, based on the first transmission time Interval resource carries out data transmission；Or

If there is no the data for the RB being transmitted using the second Transmission Time Interval resource, abandon using the Two Transmission Time Interval resources, data transmission is carried out based on the first Transmission Time Interval resource.

Alternatively, the sending module is additionally operable to：

If the second Transmission Time Interval resource is transmitted using the second Transmission Time Interval resource distributing to RB after, the second Transmission Time Interval resource has residue, with remaining second Transmission Time Interval resource Transmit other RB data.

Alternatively, the sending module is additionally operable to：

When the MAC entity of the UE obtains the second Transmission Time Interval schedule information, if it is determined that use Second Transmission Time Interval carries out the transmission of data, and the first Transmission Time Interval transmission in same subframe is Through starting, the first Transmission Time Interval is stopped using to carry out the transmission of data；Or

When the MAC entity of the UE obtains the second Transmission Time Interval schedule information, if it is determined that use Second Transmission Time Interval carries out the transmission of data, and the first Transmission Time Interval transmission in same subframe is still Do not start, abandon carrying out the transmission of data using the first Transmission Time Interval.

Alternatively, the sending module is additionally operable to：

In the second Transmission Time Interval resource start time of subframe, proceed by using between the second transmission time Every the transmission for carrying out data.

Alternatively, the sending module is additionally operable to：

After the data of corresponding first Transmission Time Interval in caching are eating dishes without rice or wine to complete HARQ transmission, caching is clear The empty or deleted or renewal by new data covering.

Alternatively, the sending module is additionally operable to：

For be abandoned use the first Transmission Time Interval transmit data, according to MAC entity current mechanism to The data generation media access control protocol data unit MAC PDU that high level application obtains, are stored in HARQ Caching is sent, the MAC PDU are retransmitted using retransmission resource.

Alternatively, the sending module is additionally operable to：

If all no up data to be transferred of all RB being transmitted using the second Transmission Time Interval resource, Abandon using the second Transmission Time Interval resource, be continuing with the first Transmission Time Interval resource and carry out data biography It is defeated.

A technical scheme in above-mentioned technical proposal has the following advantages that or beneficial effect：It is scheduled in UE When subframe is carried out uplink data retransmission or is carried out upstream data initial transmission using the first Transmission Time Interval, institute State the uplink scheduling that UE receives the second Transmission Time Interval for same subframe；The UE, which is obtained, to be used The data for the RB that second Transmission Time Interval resource is transmitted are transmitted, wherein, it is described first transmission when Between interval be more than second Transmission Time Interval.The first Transmission Time Interval and second in same subframe , can if UE can not carry out data transmission using the resource dispatched twice simultaneously when Transmission Time Interval collides So as to ensure that the RB data that are transmitted using the second Transmission Time Interval resource are preferential in fashion described above Transmission, the data can be the data of delay sensitive business, such as the data of speech business, game service Data etc..

Brief description of the drawings

Fig. 1 is protocol stack schematic diagram in the prior art；

Fig. 2 collides schematic diagram for running time-frequency resource in the prior art；

Fig. 3 is the schematic diagram of the data transmission method of the first embodiment of the present invention；

Fig. 4 is the schematic diagram of the terminal of the tenth embodiment of the present invention；

Fig. 5 is the schematic diagram of the terminal of the 11st embodiment of the present invention.

Embodiment

The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although shown in accompanying drawing The exemplary embodiment of the disclosure, it being understood, however, that may be realized in various forms the disclosure without should be by Embodiments set forth here is limited.Conversely, there is provided these embodiments are to be able to be best understood from this It is open, and the scope of the present disclosure can be completely communicated to those skilled in the art.

One skilled in the art will appreciate that embodiments of the present invention can be implemented as a kind of system, device, set Standby, method or computer program product.Therefore, embodiments of the invention can be implemented as following form： Complete hardware, complete software (including firmware, resident software, microcode etc.), or hardware and soft The form that part combines.

According to the embodiment of the present invention, it is proposed that a kind of data transmission method and terminal.

The inventors discovered that when the 1ms TTI and short TTI in same subframe are collided, because UE can not be same When using the resource dispatched twice carry out data transmission (such as：Limited UE up transmitting capacity, is adjusted twice The resource of degree contains identical frequency resource etc.), it is necessary to which design ensures that the business of delay sensitive is excellent First transmit.

The analysis of above-mentioned discovery based on inventor, fundamental design idea of the invention are：As generation 1ms TTI When being collided with short TTI, if UE can not carry out data transmission using two pieces of scheduling resources simultaneously, UE can To abandon 1ms TTI transmission, short TTI propagation delay times sensitive traffic packet is used.Specifically, in 1ms During TTI initial transmissions, according to the resource that 1ms TTI are dispatched to high level requests data to be transferred, it is needed UE MAC Cache each RB received data；If the follow-up short TTI uplink schedulings received for same subframe, UE takes out the data of delay sensitive business from MAC layer caching, is transmitted.Or in 1ms TTI weights During biography, UE MAC cache according to HARQ to be prepared to retransmit data, if follow-up receive for same subframe Short TTI uplink schedulings, UE from MAC layer caching in take out delay sensitive business data (in 1msTTI The data being stored in during initial transmission), it is transmitted.

It should be noted that above-mentioned caching can be the buffer entity or HARQ transmission cachings newly defined.

First embodiment

Referring to Fig. 3, a kind of data transmission method is shown in figure, is comprised the following steps that：

Step S310, it is scheduled in subframe in terminal UE and carries out upstream data using the first Transmission Time Interval When retransmitting or carrying out upstream data initial transmission, the UE receives the second transmission time for same subframe The uplink scheduling at interval；

Step S320, UE obtains the data progress for the RB being transmitted using the second Transmission Time Interval resource Send, wherein, first Transmission Time Interval is more than second Transmission Time Interval.

The above-mentioned RB being transmitted using the second Transmission Time Interval resource data can be delay sensitive industry The data of business, the packet such as speech business is strict to delay requirement, belongs to the data of delay sensitive business, And for example the data of game service are also strict to delay requirement, fall within the data of delay sensitive business, certainly It is not limited to this.Relative with the data of delay sensitive business is the data of non-delay sensitive business, such as ftp The data of business.

Above-mentioned first Transmission Time Interval can be 1ms TTI, and above-mentioned second Transmission Time Interval can be short TTI。

Alternatively, in a kind of optional mode of the present embodiment, first is used when terminal UE is scheduled in subframe When Transmission Time Interval carries out upstream data initial transmission, methods described also includes：UE media access control The data for each radio bearer RB that MAC entity caching receives.

Alternatively, in the present embodiment, the data for each RB that the MAC entity caching of the UE receives, Including：

At the data that will be sent in same subframe that the MAC entity of the UE is sent to high level Reason, generates MAC PDU, and deposit corresponding HARQ instance entity sends caching.

Alternatively, in the present embodiment, the UE is obtained and is transmitted using the second Transmission Time Interval resource RB data be transmitted, wherein, caching refers to have with the second Transmission Time Interval resource positioned at same The caching of first Transmission Time Interval resource data to be transferred of subframe, including：

Alternatively, in the present embodiment, methods described also includes：

After the data of corresponding first Transmission Time Interval in caching are eating dishes without rice or wine to complete HARQ transmission, in caching Empty or covered and be deleted or update by new data, above-mentioned HARQ transmission is passed at the beginning of being HARQ or HARQ Retransmit.

Alternatively, in the present embodiment, methods described also includes：

Alternatively, in the present embodiment, each RB is mapped to the first Transmission Time Interval resource or the second biography Defeated time interval resource, or each RB mappings are transmitted to the first Transmission Time Interval resource and second simultaneously Time interval resource.

In the present embodiment, it is scheduled in subframe in terminal UE and line number is carried out using the first Transmission Time Interval During according to retransmitting or carry out upstream data initial transmission, when the UE receives the second transmission for same subframe Between the uplink scheduling that is spaced；The RB's that the UE acquisitions are transmitted using the second Transmission Time Interval resource Data are transmitted, wherein, first Transmission Time Interval is more than second Transmission Time Interval. When the first Transmission Time Interval and the second Transmission Time Interval in same subframe collide, if UE can not be simultaneously Data transmission is carried out using the resource dispatched twice, aforesaid way can be used to ensure to use the second transmission time The data for the RB that interval resource is transmitted are having the preferentially transmitted, and the data can be the number of delay sensitive business According to, such as the data of speech business, data of game service etc..

Second embodiment

A kind of data transmission method is present embodiments provided, is comprised the following steps that：

Step 1, UE are scheduled in subframe A and carry out upstream data initial transmission using 1msTTI resources；

Above-mentioned 1msTTI resources are equivalent to the first Transmission Time Interval resource in first embodiment.

Step 2, the dispatching algorithm according to MAC layer, UE calculate each RB and can be assigned in subframe A Transmitted data amount, and to corresponding RLC/PDCP request for data；

The dispatching algorithm of above-mentioned MAC layer is existing algorithm, no longer applies state herein.

What the high level that step 3, MAC layer trigger step 2 was sent divides the data sent in subframe A RB is put into caching；

It should be noted that above-mentioned caching can be the buffer entity newly defined, this is also not limited to certainly.

Step 4, MAC layer handle high level data according to existing mechanism, generate MAC PDU to be sent, It is stored in 1m TTI HARQ and sends caching；

Scheduled X OFDM (OFDM) symbols of UE in subframe A of step 5, UE are opened Begin, uplink is carried out using short subframe；

Step 6, the dispatching algorithm according to MAC layer, UE can passed preferentially using short TTI resources Resource allocation is carried out in defeated RB；

Above-mentioned short TTI resources are equivalent to the second Transmission Time Interval resource in first embodiment.

For example, if buffered in step 3 corresponding RB data, directly obtain number from caching According to；No longer to high-rise request for data；

If for example, not caching corresponding RB data, to corresponding RLC, (radio link layer controls Agreement)/PDCP (PDCP) layer request for data (if high level has data to be transferred)；

In the present embodiment, UE can obtain the RB that preferentially can be transmitted using short TTI resources in advance Information, alternatively, for eNB when configuration UE establishes RB, whether the notice UE RB preferentially use short TTI Resource；Or eNB notices can preferentially use the RB of short TTI resources QoS attributes；Or advise in the protocol Surely this can be also not limited to certainly preferentially using RB QoS attributes of short TTI resources etc..

Above-mentioned RB priority orders can be determined by dispatching algorithm.

If step 7, short TTI resources after the RB being preferentially transmitted using short TTI resources is distributed to, Still there is residue, then remaining short TTI resources can transmit other RB data；Detailed process can be with step 6 It is similar；

Step 8, MAC layer handle high level data, generation short TTI resources hair to be used according to existing mechanism The MAC PDU sent, it is stored in short TTI HARQ entities and sends caching；

If step 9, MAC layer obtain short TTI schedule informations when, 1m TTI HARQ send caching In data had begun to that (i.e. UE MAC is obtained in subframe A in subframe A 1msTTI transmission Know and also have short TTI resources to be assigned to oneself in present sub-frame), UE can stop the biography of 1ms TTI data It is defeated；Otherwise, UE directly abandons the transmission of the 1ms TTI data in subframe A；

Step 10, the short TTI resources start time in subframe A, UE proceeds by short TTI data transfers；

Step 11, after 1ms TTI data corresponded in caching eating dishes without rice or wine to complete HARQ transmission, in caching Empty or covered and be deleted or update by new data.

It should be noted that HARQ transmission is that just biography or HARQ are retransmitted HARQ.

In the present embodiment, when the 1ms TTI in same subframe and short TTI are collided, if UE can not be same When using the resource dispatched twice carry out data transmission, aforesaid way can be used to ensure the data of specified services It is having the preferentially transmitted, the specified services can be the business of delay sensitive, and the business of above-mentioned delay sensitive can be Speech business, game service etc..

3rd embodiment

Step 1, UE are scheduled in subframe A and carry out upstream data initial transmission using 1msTTI；

What the high level that step 3, MAC layer trigger step 2 was sent puts the data sent in subframe A Enter caching, caching divides RB to set；

The X OFDM symbol that step 5, UE are scheduled in subframe A starts, and uses short TTI resources Carry out uplink；

For example, if corresponding RB data buffer storage non-NULL, directly obtains data from caching；No longer to height Layer request for data；

In another example if corresponding RB data buffer storage is sky, to corresponding RLC/PDCP layers application number According to (if high level has data to be transferred)；

If step 7, short TTI resources after the RB being preferentially transmitted using short TTI resources is distributed to, Still there is residue, then can be similar with step 6 with remaining other RB of short TTI resource transmissions data, method；

If step 9, MAC layer obtain short TTI schedule informations when, 1msTTI HARQ send caching In data had begun to that (i.e. UE MAC is obtained in subframe A in subframe A 1msTTI transmission Know and also have short TTI resources to be assigned to oneself in present sub-frame), UE can stop the biography of 1ms TTI data It is defeated；Otherwise, UE directly abandons the transmission of the 1ms TTI data in subframe A；

Fourth embodiment

The scheduled UE of step 1, UE carries out upstream data initial transmission in subframe A using 1msTTI；

The data sent in subframe A are divided RB to cache by step 3, MAC layer by what high level was sent；

It should be noted that caching can be the buffer entity newly defined, this is also not limited to certainly.

The X OFDM symbol that step 4, UE are scheduled in subframe A starts, and is carried out using short subframe Uplink；

Step 5, the dispatching algorithm according to MAC layer, UE can passed preferentially using short TTI resources Resource allocation is carried out in defeated RB.

If buffered corresponding RB data, directly obtain data from caching in above-mentioned steps 3, No longer to high-rise request for data；

If corresponding RB data are not cached in above-mentioned steps 3, to corresponding RLC/PDCP layers Request for data (if high level has data to be transferred)；

If step 6, short TTI resources after the RB being preferentially transmitted using short TTI resources is distributed to, Still there is residue, then carry out padding (filling)；

Step 7, such as MAC layer obtain short TTI schedule informations when, subframe A 1msTTI transmission Start (i.e. UE MAC is informed in present sub-frame in subframe A and also has short TTI resources to be assigned to oneself), UE can stop the transmission of 1ms TTI data.

Step 8, the short TTI resources start time in subframe A, UE proceeds by short TTI data transfers；

Step 9, after 1ms TTI data corresponded in caching eating dishes without rice or wine to complete HARQ transmission, in caching Empty or covered and be deleted or update by new data.

5th embodiment

Step 3, MAC layer handle high level data according to existing mechanism, generate MAC PDU to be sent, It is stored in 1m TTI HARQ entities and sends caching；

Step 5, the dispatching algorithm according to MAC layer, UE can passed preferentially using short TTI resources Resource allocation is carried out in defeated RB；

For example, UE sends the MAC PDU for the deposit taken out in caching in step 3 from HARQ, extract Belong to delay sensitive business RB RLC PDU；

In another example there is no corresponding RB data in MAC PDU, then to corresponding RLC/PDCP layers application Data (if high level has data to be transferred)；

If step 6, short TTI resources after the RB being preferentially transmitted using short TTI resources is distributed to, Still there are surplus resources, then can be for transmitting other RB data；The acquisition methods of other RB data are using existing There is scheduling mechanism；

Step 7, MAC layer are according to the high level data obtained in existing mechanism processing step 5 and 6, generation MAC PDU to be sent, it is stored in short TTI HARQ entities and sends caching；

Step 8, such as MAC layer obtain short TTI schedule informations when, 1m TTI HARQ send caching in Data had begun to that (i.e. UE MAC is known in subframe A in subframe A 1msTTI transmission Also have short TTI resources to be assigned to oneself in present sub-frame), UE can stop the transmission of 1ms TTI data； Otherwise, UE directly abandons the transmission of the 1ms TTI data in subframe A；

Step 9, the short TTI resources start time in subframe A, UE proceeds by short TTI data transfers；

Step 10, when 1m TTI HARQ send be buffered in eat dishes without rice or wine complete HARQ transmission after, will be transmitted across Data emptied from corresponding cache or covered and be deleted or renewal by new data.

Sixth embodiment

Step 3, MAC layer handle high level data according to existing mechanism, generate MAC PDU to be sent, It is stored in 1m TTI HARQ and sends caching；

Step 5, the dispatching algorithm according to MAC layer, UE can passed preferentially using short TTI resources Resource allocation is carried out in defeated RB：

In another example if short TTI inadequate resources correspond to all delay sensitive business in MAC PDU to carry RB RLC PDU, then preferentially carry the RLC PDU of high priority；

If for another example time delay sensitive traffic RB RLC PDU in MAC PDU be present, but short TTI Inadequate resource is to carry any one delay sensitive business RLC PDU, then UE abandons short TTI resources；Base Data transmission is carried out in 1ms TTI resources, into step 10；

For another example if the RLC PDU, UE in MAC PDU in the absence of delay sensitive business RB can be with Abandon short TTI resources；Data transmission is carried out based on 1ms TTI resources, into step 10；

If step 6, short TTI resources after the RB being preferentially transmitted using short TTI resources is distributed to, Still there are surplus resources, then carry out MAC layer padding (filling)；

Step 7, MAC layer are pending according to the high level data obtained in existing mechanism processing step 5, generation The MAC PDU sent, it is stored in short TTI HARQ and sends caching；

7th embodiment：Based on new caching

In above-mentioned second embodiment~sixth embodiment, corresponding is all that 1ms TTI are situation about just passing, below In the 7th embodiment, the resource of description 1ms TTI scheduling is situation about retransmitting：

Step 1, UE are scheduled in subframe A and carry out uplink data retransmission using 1msTTI；

In retransmission processes, MAC PDUs of the UE MAC based on corresponding HARQ instance process cache is retransmitted；

The X OFDM symbol that step 2, UE are scheduled in subframe A starts, and uses short TTI resources Carry out uplink；

Step 3, the dispatching algorithm according to MAC layer, UE can passed preferentially using short TTI resources Resource allocation is carried out in defeated RB；

It should be noted that above-mentioned corresponding RB data buffer storage writes when first pass.

If step 4, short TTI resources after the RB being preferentially transmitted using short TTI resources is distributed to, Still there is residue, then can be similar with step 3 with remaining other RB of short TTI resource transmissions data, method；

Step 5, MAC layer handle high level data, generation short TTI resources hair to be used according to existing mechanism The MAC PDU sent, it is stored in short TTI HARQ entities and sends caching；

If step 6, MAC layer obtain short TTI schedule informations when, 1msTTI HARQ send caching In data had begun to that (i.e. UE MAC is obtained in subframe A in subframe A 1msTTI transmission Know and also have short TTI resources to be assigned to oneself in present sub-frame), UE can stop the biography of 1ms TTI data It is defeated；Otherwise, UE directly abandons the transmission of the 1ms TTI data in subframe A；

Step 7, the short TTI resources start time in subframe A, UE proceeds by short TTI data transfers；

Step 8, after 1ms TTI data corresponded in caching eating dishes without rice or wine to complete HARQ transmission, in caching Empty or covered and be deleted or update by new data.

8th embodiment：Cached based on HARQ

In above-mentioned second embodiment~sixth embodiment, corresponding is all that 1ms TTI are situation about just passing, below In the 8th embodiment, the resource of description 1ms TTI scheduling is situation about retransmitting：

Step 1, UE are scheduled in subframe A and carry out uplink data retransmission using 1msTTI resources；

The X OFDM symbol that step 2, UE are scheduled in subframe A starts, and is carried out using short subframe Uplink；

Step 3, the dispatching algorithm according to MAC layer, UE can passed preferentially using short TTI resources Resource allocation is carried out in defeated RB：

For example, UE sends the MAC PDU that corresponding HARQ instance process cache is taken out in caching from HARQ, Extract the RLC PDU, the MAC PDU of above-mentioned HARQ process caches for belonging to delay sensitive business RB It is stored in 1msTTI initial transmissions；

If for another example time delay sensitive traffic RB RLC PDU in MAC PDU be present, but short TTI Inadequate resource is to carry any one delay sensitive business RLC PDU, then UE abandons short TTI resources；Base Data transmission is carried out in 1ms TTI resources, into step 8；

For another example if the RLC PDU, UE in MAC PDU in the absence of delay sensitive business RB can be with Abandon short TTI resources；Data transmission is carried out based on 1ms TTI resources, into step 8；

If step 4, short TTI resources after the RB being preferentially transmitted using short TTI resources is distributed to, Still there are surplus resources, then carry out MAC layer padding (filling)；

Step 5, MAC layer are pending according to the high level data obtained in existing mechanism processing step 4, generation The MAC PDU sent, it is stored in short TTI HARQ and sends caching；

Step 6, such as MAC layer obtain short TTI schedule informations when, 1m TTI HARQ send caching in Data had begun to that (i.e. UE MAC is known in subframe A in subframe A 1msTTI transmission Also have short TTI resources to be assigned to oneself in present sub-frame), UE can stop the transmission of 1ms TTI data； Otherwise, UE directly abandons the transmission of the 1ms TTI data in subframe A；

Step 8, when 1m TTI HARQ send be buffered in eat dishes without rice or wine complete HARQ transmission after, by what is be transmitted across Data are deleted from corresponding cache.

9th embodiment

On the basis of the various embodiments described above, for the data being abandoned in the 1ms TTI of transmission, if after It is the retransmission resource that UE is assigned with corresponding 1ms HARQ processes after network, is stored in HARQ entities MAC PDU can be retransmitted using retransmission resource.

Tenth embodiment

On the basis of the various embodiments described above, the scene of the present embodiment is：If short TTI is not used preferentially The RB that resource is transmitted has data to be passed, comprises the following steps that：

Step 1, UE are scheduled in subframe A and carry out uplink using 1msTTI；

If step 3, all RB that preferentially can be transmitted using short TTI resources are without up to be passed Data, UE can abandon short TTI resources, are continuing with 1ms TTI resources and carry out data transmission.

11st embodiment

On the basis of the various embodiments described above, in the present embodiment, which carrying (RB) of UE be pre-configured with Short TTI can be used, which carrying can use 1ms TTI；I.e. every kind of carrying can only be mapped to a kind of length TTI resources on, or it is every kind of carrying may map in the TTI resources of different lengths；

That is, each RB is mapped to Transmission Time Interval resource or the second Transmission Time Interval resource, or often A kind of RB mappings are simultaneously to the first Transmission Time Interval resource and the second Transmission Time Interval resource.

Meanwhile on the basis of any one embodiment, may be used also into the tenth embodiment in above-mentioned second embodiment To configure following strategy：

When 1msTTI and short TTI appear in same subframe：

A) if one to be passed without upstream data, then UE abandons the 1msTTI or short of no data to be transferred TTI resources；

If b) 1msTTI and short TTI resources all do not have data to pass, UE select a 1msTTI or Short TTI resources are abandoned；

If c) 1msTTI and short TTI resources have that data are to be passed, the data that UE is abandoned on 1ms TTI pass It is defeated.

12nd embodiment

Referring to Fig. 4, a kind of terminal is shown in figure, including：

Receiving module 401, carried out for being scheduled in subframe in terminal UE using the first Transmission Time Interval When row data retransmit or carry out upstream data initial transmission, the second transmission time for same subframe is received The uplink scheduling at interval；

Sending module 402, if receiving the second Transmission Time Interval for same subframe for the UE Uplink scheduling, the RB data being transmitted using the second Transmission Time Interval resource are obtained from caching and are entered Row is sent, wherein, first Transmission Time Interval is more than second Transmission Time Interval.

Alternatively, in a kind of optional mode of the present embodiment, the terminal also includes：Cache module, it is used for For when terminal UE be scheduled in subframe using the first Transmission Time Interval carry out upstream data initial transmission when, Cache each radio bearer RB received data；

Alternatively, the cache module is further used for：

Alternatively, the sending module is further used for：

Alternatively, the sending module is additionally operable to：

When the MAC entity of the UE obtains the second Transmission Time Interval schedule information, if it is determined that use Second Transmission Time Interval carries out the transmission of data, and the first Transmission Time Interval transmission in same subframe A Have begun to, stop using the first Transmission Time Interval to carry out the transmission of data；Or

When the MAC entity of the UE obtains the second Transmission Time Interval schedule information, if it is determined that use Second Transmission Time Interval carries out the transmission of data, and the first Transmission Time Interval transmission in same subframe A Not yet start, abandon carrying out the transmission of data using the first Transmission Time Interval.

Alternatively, the sending module is additionally operable to：

In subframe A the second Transmission Time Interval resource start time, proceed by using the second transmission time Interval carries out the transmission of data.

Alternatively, the sending module is additionally operable to：

After the data of corresponding first Transmission Time Interval in caching are eating dishes without rice or wine to complete HARQ transmission, caching is clear Sky is covered and be deleted or update by new data, and the HARQ transmission is passed at the beginning of being HARQ or HARQ Retransmit.

Alternatively, the sending module is additionally operable to：

Alternatively, each RB is mapped to a first Transmission Time Interval resource or second transmission time Interval resource, or each RB mappings are simultaneously between the first Transmission Time Interval resource and the second transmission time Every resource.

11st embodiment

Referring to Fig. 5, a kind of terminal is shown in figure, including：

Processor 504, for reading the program in memory 505, perform following process：

Subframe, which is scheduled in, in terminal UE carries out uplink data retransmission or progress using the first Transmission Time Interval During upstream data initial transmission, the uplink scheduling of the second Transmission Time Interval for same subframe is received； If the UE receives the uplink scheduling of the second Transmission Time Interval for same subframe, obtained from caching The data for the RB being transmitted using the second Transmission Time Interval resource are taken to be transmitted, wherein, described first Transmission Time Interval is more than second Transmission Time Interval.

Transceiver 501, for data to be received and sent under the control of processor 504.

In Figure 5, the second bus architecture (being represented with bus 500), bus 500 can include any The bus and bridge of the interconnection of quantity, bus 500 will be handled including the one or more represented by processor 504 The various circuits for the memory that device and first memory 805 represent link together.Bus 500 can also incite somebody to action Various other circuits of such as ancillary equipment, voltage-stablizer and management circuit or the like link together, this A little is all it is known in the art, therefore, no longer it is described further herein.Second EBI 903 provide interface between bus 500 and transceiver 501.Transceiver 501 can be an element, also may be used To be multiple element, such as multiple receivers and transmitter, there is provided for over a transmission medium with it is various other The unit of device communication.The data handled through processor 504 are passed on the radio medium by antenna 502 Defeated, further, antenna 502 also receives data and transfers data to processor 504.

Processor 504 is responsible for bus 500 and common processing, can also provide various functions, including Regularly, peripheral interface, voltage-regulation, power management and other control functions.And memory 505 can be with It is used to store the used data when performing operation of processor 504.

Optionally, processor 504 can be CPU, ASIC, FPGA or CPLD.

Optionally, processor 504 is additionally operable to：Used when terminal UE is scheduled in subframe between the first transmission time When upstream data initial transmission is carried out, each radio bearer RB received data are cached；

Optionally, processor 504 is additionally operable to：

Optionally, processor 504 is further used for：

Optionally, processor 504 is additionally operable to：

It should be understood that " one embodiment " or " embodiment " that specification is mentioned in the whole text means and reality Apply the relevant special characteristic of example, structure or characteristic include at least one embodiment of the present invention in.Therefore, Not necessarily refer in " in one embodiment " or " in one embodiment " that entire disclosure occurs everywhere Identical embodiment.In addition, these specific feature, structure or characteristics can combine in any suitable manner In one or more embodiments.

In various embodiments of the present invention, it should be appreciated that the size of the sequence number of above-mentioned each process is not meant to The priority of execution sequence, the execution sequence of each process should be determined with its function and internal logic, without tackling this The implementation process of inventive embodiments forms any restriction

In addition, the terms " system " and " network " are often used interchangeably herein.

It should be understood that the terms "and/or", a kind of only incidence relation for describing affiliated partner, table Show there may be three kinds of relations, for example, A and/or B, can be represented：Individualism A, at the same exist A and These three situations of B, individualism B.In addition, character "/" herein, typicallys represent forward-backward correlation object It is a kind of relation of "or".

In embodiment provided herein, it should be appreciated that " B " corresponding with A represents that B and A is related Connection, B can be determined according to A.It is also to be understood that determine that B is not meant to determine only according to A according to A B, B can also be determined according to A and/or other information.

In several embodiments provided herein, it should be understood that disclosed method and apparatus, can be with Realize by another way.For example, device embodiment described above is only schematical, for example, The division of the unit, only a kind of division of logic function, can there is other division side when actually realizing Formula, such as multiple units or component can combine or be desirably integrated into another system, or some features can To ignore, or do not perform.It is another, shown or discussed mutual coupling or direct-coupling or logical Letter connection can be by some interfaces, the INDIRECT COUPLING or communication connection of device or unit, can be it is electrical, Mechanical or other forms.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, Can also be that the independent physics of unit includes, can also two or more units be integrated in a unit In.Above-mentioned integrated unit can both be realized in the form of hardware, can also add software function using hardware The form of unit is realized.

The above-mentioned integrated unit realized in the form of SFU software functional unit, can be stored in a computer can Read in storage medium.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are used To cause a computer equipment (can be personal computer, server, or network equipment etc.) to perform The part steps of receiving/transmission method described in each embodiment of the present invention.And foregoing storage medium includes：USB flash disk, Mobile hard disk, read-only storage (Read-Only Memory, abbreviation ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic disc or CD etc. are various can be with storage program generation The medium of code.

Above-described is the preferred embodiment of the present invention, it should be pointed out that for the ordinary people of the art For member, some improvements and modifications can also be made under the premise of principle of the present invention is not departed from, these Improvements and modifications are also within the scope of the present invention.

Claims

A kind of 1. data transmission method, it is characterised in that including：

Subframe, which is scheduled in, in terminal UE carries out uplink data retransmission or progress using the first Transmission Time Interval During upstream data initial transmission, the UE receptions are for the up of the second Transmission Time Interval of same subframe Scheduling；

The data that the UE obtains the RB being transmitted using the second Transmission Time Interval resource are transmitted, Wherein, first Transmission Time Interval is more than second Transmission Time Interval.
2. according to the method for claim 1, it is characterised in that make when terminal UE is scheduled in subframe When carrying out upstream data initial transmission with the first Transmission Time Interval, methods described also includes：

The data for each radio bearer RB that the media access control MAC entity caching of the UE receives.
3. according to the method for claim 2, it is characterised in that the MAC entity caching of the UE is received Each RB arrived data, including：

The MAC entity of the UE according to a point expected transmission subframe, divides the data that high level is sent to RB Cached corresponding to deposit；Or

At the data that will be sent in same subframe that the MAC entity of the UE is sent to high level Reason, generates MAC PDU, and deposit corresponding HARQ instance sends caching.
4. according to the method for claim 2, it is characterised in that the UE is obtained using the second transmission The data for the RB that time interval resource is transmitted are transmitted, including：

If having cached the data for the RB being transmitted using the second Transmission Time Interval resource, the UE is straight The data for meeting the RB that acquisition is transmitted using the second Transmission Time Interval from caching are transmitted, no longer to High-rise request for data；Or

If the data for the RB being transmitted using the second Transmission Time Interval resource, the UE are not cached To corresponding radio link layer control protocol RLC entities or PDCP PDCP entity application numbers According to, or abandon the second Transmission Time Interval resource；Or

If the second Transmission Time Interval inadequate resource is entered with transmitting the second Transmission Time Interval resource of all uses The RB of row transmission data, then use the second Transmission Time Interval resource for passing high priority are transmitted RB data；Or

If the second Transmission Time Interval inadequate resource is provided with transmitting any one using the second Transmission Time Interval The data for the RB that source is transmitted, UE abandon using the second Transmission Time Interval resource, based on the first transmission Time interval resource carries out data transmission；Or

If there is no the data for the RB being transmitted using the second Transmission Time Interval resource, UE abandons making With the second Transmission Time Interval resource, data transmission is carried out based on the first Transmission Time Interval resource.
5. according to the method for claim 1, it is characterised in that methods described also includes：

If the second Transmission Time Interval resource is transmitted using the second Transmission Time Interval resource distributing to RB after, the second Transmission Time Interval resource has residue, remaining second transmission times of the UE Interval resource transmits other RB data.
6. according to the method for claim 1, it is characterised in that methods described also includes：

If the second Transmission Time Interval resource is transmitted using the second Transmission Time Interval resource distributing to RB after, the second Transmission Time Interval resource has residue, is filled using filling bit.
7. according to the method for claim 1, it is characterised in that methods described also includes：

When the MAC entity of the UE obtains the second Transmission Time Interval schedule information, if it is determined that use Second Transmission Time Interval carries out the transmission of data, and the first Transmission Time Interval transmission in same subframe is Through starting, the UE stops using the transmission of the first Transmission Time Interval progress data；Or

When the MAC entity of the UE obtains the second Transmission Time Interval schedule information, if it is determined that use Second Transmission Time Interval carries out the transmission of data, and the first Transmission Time Interval transmission in same subframe is still Do not start, the UE abandons carrying out the transmission of data using the first Transmission Time Interval.
8. according to the method for claim 1, it is characterised in that methods described also includes：

In the second Transmission Time Interval resource start time of subframe, the UE is proceeded by using the second transmission Time interval carries out the transmission of data.
9. according to the method for claim 1, it is characterised in that methods described also includes：

After the data of corresponding first Transmission Time Interval in caching are eating dishes without rice or wine to complete HARQ transmission, in caching Empty or covered and be deleted or update by new data.
10. according to the method for claim 9, it is characterised in that the HARQ transmission is HARQ Just pass or HARQ is retransmitted.
11. according to the method for claim 1, it is characterised in that methods described also includes：

For being abandoned the data for using the first Transmission Time Interval to transmit, the UE shows according to MAC entity There is mechanism to generate media access control protocol data unit MAC PDU, deposit to the high-rise data for applying obtaining HARQ sends caching, and the MAC PDU are retransmitted using retransmission resource.
12. according to the method for claim 1, it is characterised in that methods described also includes：

If all no up data to be transferred of all RB being transmitted using the second Transmission Time Interval resource, The UE abandons using the second Transmission Time Interval resource, is continuing with the progress of the first Transmission Time Interval resource Data transfer.
13. according to the method for claim 1, it is characterised in that each RB is mapped to the first transmission Time interval resource or the second Transmission Time Interval resource, or each RB mappings are simultaneously to during the first transmission Between interval resource and the second Transmission Time Interval resource.
A kind of 14. terminal, it is characterised in that including：

Receiving module, line number is carried out using the first Transmission Time Interval for being scheduled in subframe in terminal UE During according to retransmitting or carry out upstream data initial transmission, the second Transmission Time Interval for same subframe is received Uplink scheduling；Sending module, for obtaining the RB's being transmitted using the second Transmission Time Interval resource Data are transmitted, wherein, first Transmission Time Interval is more than second Transmission Time Interval.
15. terminal according to claim 14, it is characterised in that the terminal also includes：

Cache module, for carrying out upper line number using the first Transmission Time Interval when terminal UE is scheduled in subframe During according to initial transmission, each radio bearer RB received data are cached.
16. terminal according to claim 15, it is characterised in that the cache module is further used for：

By the data that high level is sent according to a point expected transmission subframe, divide and cached corresponding to RB deposits；Or

The data sent in same subframe are handled to what high level was sent, MAC PDU is generated, deposits Enter corresponding HARQ instance and send caching.
17. terminal according to claim 14, it is characterised in that the sending module is further used for：

If the data for the RB being transmitted using the second Transmission Time Interval resource are cached, directly from caching The middle data for obtaining the RB being transmitted using the second Transmission Time Interval are transmitted, and are no longer applied to high level Data；Or

If not caching the data for the RB being transmitted using the second Transmission Time Interval resource, E is to correspondingly Radio link layer control protocol RLC entities or PDCP PDCP entity request for data, or Person abandons the second Transmission Time Interval resource；Or

If the second Transmission Time Interval inadequate resource is entered with transmitting the second Transmission Time Interval resource of all uses The RB of row transmission data, then use the second Transmission Time Interval resource for passing high priority are transmitted RB data；Or

If the second Transmission Time Interval inadequate resource is provided with transmitting any one using the second Transmission Time Interval The data for the RB that source is transmitted, abandon using the second Transmission Time Interval resource, based on the first transmission time Interval resource carries out data transmission；Or

If there is no the data for the RB being transmitted using the second Transmission Time Interval resource, abandon using the Two Transmission Time Interval resources, data transmission is carried out based on the first Transmission Time Interval resource.
18. terminal according to claim 14, it is characterised in that the sending module is additionally operable to：

If the second Transmission Time Interval resource is transmitted using the second Transmission Time Interval resource distributing to RB after, the second Transmission Time Interval resource has residue, with remaining second Transmission Time Interval resource Transmit other RB data.
19. terminal according to claim 14, it is characterised in that the sending module is additionally operable to：

If the second Transmission Time Interval resource is transmitted using the second Transmission Time Interval resource distributing to RB after, the second Transmission Time Interval resource has residue, is filled using filling bit.
20. terminal according to claim 14, it is characterised in that the sending module is additionally operable to：

When the MAC entity of the UE obtains the second Transmission Time Interval schedule information, if it is determined that use Second Transmission Time Interval carries out the transmission of data, and the first Transmission Time Interval transmission in same subframe is Through starting, the first Transmission Time Interval is stopped using to carry out the transmission of data；Or

When the MAC entity of the UE obtains the second Transmission Time Interval schedule information, if it is determined that use Second Transmission Time Interval carries out the transmission of data, and the first Transmission Time Interval transmission in same subframe is still Do not start, abandon carrying out the transmission of data using the first Transmission Time Interval.
21. terminal according to claim 14, it is characterised in that the sending module is additionally operable to：

In the second Transmission Time Interval resource start time of subframe, proceed by using between the second transmission time Every the transmission for carrying out data.
22. terminal according to claim 14, it is characterised in that the sending module is additionally operable to：

After the data of corresponding first Transmission Time Interval in caching are eating dishes without rice or wine to complete HARQ transmission, caching is clear The empty or deleted or renewal by new data covering.
23. terminal according to claim 22, it is characterised in that the HARQ transmission is HARQ Just pass or HARQ is retransmitted.
24. terminal according to claim 14, it is characterised in that the sending module is additionally operable to：

For be abandoned use the first Transmission Time Interval transmit data, according to MAC entity current mechanism to The data generation media access control protocol data unit MAC PDU that high level application obtains, are stored in HARQ Caching is sent, the MAC PDU are retransmitted using retransmission resource.
25. terminal according to claim 14, it is characterised in that the sending module is additionally operable to：

If all no up data to be transferred of all RB being transmitted using the second Transmission Time Interval resource, Abandon using the second Transmission Time Interval resource, be continuing with the first Transmission Time Interval resource and carry out data biography It is defeated.
26. terminal according to claim 14, it is characterised in that each RB is mapped to the first biography Defeated time interval resource or the second Transmission Time Interval resource, or each RB mappings are simultaneously to the first transmission Time interval resource and the second Transmission Time Interval resource.