CN103384187B

CN103384187B - TTI binding uplink transmission method and system and mobile terminal

Info

Publication number: CN103384187B
Application number: CN201210136096.5A
Authority: CN
Inventors: 毕奇; 佘小明; 陈鹏; 蒋峥; 刘洋; 李欣; 杨姗
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2012-05-04
Filing date: 2012-05-04
Publication date: 2017-04-12
Anticipated expiration: 2032-05-04
Also published as: CN103384187A

Abstract

The invention discloses a TTI binding uplink transmission method and system and a mobile terminal. The TTI binding uplink transmission method comprises the following steps that the mobile terminal receives the TTI binding parameters and the transmission block size determination parameters; if the TTI binding parameters indicate conducting of TTI binding transmission with the number of TTIs changed, transmission patterns are read locally according to the service type, wherein in the read transmission patterns, the number of the TTIs contained in TTI binding which is retransmitted is less than that of the TTIs contained in the TTI binding which is transmitted for the first time; the size of a transmission block is determined according to the type of a service used currently, the decision of whether the TTI binding transmission with the number of the TTIs changed is carried out, the number of the TTIs contained in the TTI binding and the transmission block size determination parameters; uplink data are transmitted according to the read transmission patterns and the size of the transmission block; whether retransmission is needed or not is judged according to a HARQ result, and the data of the service used currently by the mobile terminal are retransmitted if retransmission is needed.

Description

The ascending transmission method of TTI binding, system and mobile terminal

Technical field

The present invention relates to wireless communication technology, especially, is related to a kind of ascending transmission method of TTI binding, system and shifting Dynamic terminal.

Background technology

In addition to obtaining the higher availability of frequency spectrum, can realize that it is to judge a kind of mobile communication technology effectively to cover The good and bad key with network operation.As after 3G (Third Generation) Moblie in the world the next-generation mobile communications standard of main flow- LTE（Long Term Evolution, Long Term Evolution）, it employs special design in terms of covering.In view of it is up be to cover The bottleneck of lid, to up VoIP in LTE R8（Voice over IP, IP phone) transmission employ TTI（Transmission Time Interval, Transmission Time Interval）Binding technology.

The principle of TTI binding technology is as shown in figure 1, for a transmission block, by chnnel coding 4 rate-matcheds are formed The different redundancy versions of mode, 4 different redundancy versions are transmitted respectively in 4 continuous TTI.In 1 binding 4 The corresponding same HARQ of individual TTI（Hybrid Automatic Repeat Request, hybrid automatic repeat-request）Process, base Stand and only HARQ feedback is produced to last TTI, i.e. 4 TTI just produce a HARQ feedback after receiving.If some TTI Binding fails correctly to demodulate and needs to retransmit, then retransmit also as the binding of 4 continuous Ts TI.In addition, the up employing synchronizations of LTE Repeating method, i.e. retransmitted at a fixed time interval, the time interval retransmitted under TTI binding is 16 TTI.

Up VoIP transmission employed in LTE R8 as shown in Figure 1 can effectively improve the network coverage.But, closely Come research show, due to LTE R8 conceptual phases consider scene it is limited, operator is actual arrange net in if using higher Carrier frequency, bigger site distance when, even if using the TTI binding technology of LTE R8, covering also inadequate.

Although defining binding technology in LTE R8, yet suffer from covering not enough problem, pin in some scenarios To the problem that the covering is not enough, it is proposed that following solution：

For VoIP business, compared with LTE R8, can be bound using more TTI, for example, 8TTI binding and 10TTI binds two kinds of designs, respectively as shown in Figures 2 and 3.In the prior art one shown in Fig. 2, each bag adopts 8 TTI Binding transmission is carried out, in 60 TTI, each bag can at most carry out 3 re-transmissions, retransmit at intervals of 16 TTI.In Fig. 3 institutes In the prior art two shown, each bag carries out binding transmission using 10 TTI, and in 60 TTI, each bag at most can be carried out 1 re-transmission, retransmits at intervals of 30 TTI.

Inventor has found that, for VoIP business, it has the characteristics that in design and requires：

（1）Carry out a new bag per 20 TTI；

（2）The maximum transmitted time delay of each bag（Under maximum times are retransmitted）It is limited in 50 TTI or so；

（3）The quality of the performance TTI number shared with each bag is transmitted（That is, the energy accumulation that each is wrapped is how many）And letter The diversity in road is closely related.

Referring back to Fig. 2, in the prior art one shown in Fig. 2, each bag carries out binding transmission using 8 TTI, at each The maximum transmitted time delay of bag be limited in 50 TTI or so and retransmit at intervals of 16 TTI in the case of, can at most carry out 3 Secondary re-transmission, that is to say, that each bag can at most take 8 × 4=32 TTI, optimize each energy for wrapping accumulation.But, Due to a new bag can be carried out per 20 TTI, so one of prior art one is potentially prone to：Occur and retransmit bag with new bag Resource contention, as shown in Figure 4.Specifically, due to a new bag can be carried out per 20 TTI for VoIP, if reached in new bag At the moment, if previous bag also needs to be retransmitted, the conflict in resource just occurs.

Further, retransmitting the resource contention of bag and new bag can bring two problems：One is because user's transmit power is received Limit, when limited power needs to be used to send new bag and retransmit bag simultaneously, can bring performance loss；Two be in order to avoid conflict, Increase signaling is needed to be notified.

For VoIP, in order to avoid Xin Bao and the resource contention of re-transmission bag, a basic criterion is exactly that transmission is every Maximum TTI numbers shared by individual bag are no more than 20.Because VoIP carrys out a new bag per 20 TTI, if transmitting each bag institute The TTI sums of occupancy will necessarily bring Xin Bao and retransmit the resource contention of bag more than 20.

Referring back to Fig. 3, considering the shared TTI sums of transmission each bag in the prior art two shown in Fig. 3 can not surpass 20 factor is crossed, each bag carries out binding transmission using 10 TTI, and can at most carry out 1 re-transmission, retransmits at intervals of 30 Individual TTI.So, the prior art two shown in Fig. 3 is to have taken into account the shared TTI numbers of transmission each bag maximized simultaneously, Also efficiently avoid Xin Bao and retransmit the collision problem of bag.

But, inventor is also noted that of the prior art two shown in Fig. 3 is potentially prone to：Each bag is in transmission When diversity degree it is not high enough.In the principle of transmission diversity, the resource of occupancy is more disperseed, and the effect of its diversity is better. However, in prior art two, because the TTI binding number that each VoIP bag is adopted is long, therefore cause maximum retransmission mistake It is few, so as to bring diversity undesirable.

It is more than VoIP business exists in terms of up covering in prior art problem.Next, being illustrated by Fig. 5 The problem that data service exists in terms of up covering in prior art.

Referring to Fig. 5, for data service, can directly using similar to the TTI binding in LTE R8 for VoIP business Technology, wherein each bag can carry out binding transmission using 4 TTI, retransmit at intervals of 16 TTI.

Inventor it has been investigated that, for the prior art three for data service shown in Fig. 5, exist with dive In problem：

（1）The waste of resource will be brought during re-transmission using with transmission identical, the TTI binding length of fixation for the first time.

When carrying out TTI binding to VoIP in LTE R8, it is contemplated that VoIP business is high to delay requirement, in order to limit in time delay It is lower to transmit TTI as much as possible, therefore using with transmission identical, the TTI binding length of fixation for the first time when retransmitting.However, For data service, because delay requirement is high without VoIP, not enough spirit is retransmitted using fixed TTI binding length It is living.For example, 1-2 TTI base station of re-transmission is only needed in some cases just can be properly received, and if always according to fixed 4 TTI bindings can bring the serious waste on retransmission resource if being retransmitted.

（2）Determine method using with identical transmission block under non-TTI binding, the loss of handling capacity will be brought.

Base station in LTE needs the MCS in signaling（Modulation and Coding Scheme, modulating-coding Scheme）Information and PRB（Physical Resource Block, Physical Resource Block）Number, from the transport block size shown in Fig. 6 The size of transmission block is determined in mapping table.But, search before transport block size mapping table in data transfer in LTE R8 It is not adopt TTI binding, or the TTI numbers for being equivalent to take to be fixed as 1 to put forward hypothesis.Line number is entered using TTI binding in reality According to during transmission, if also like as tradition, it is assumed that the TTI numbers of occupancy be fixed as 1 and only according to the number of PRB being transmitted block Really set must cause the transport block size for obtaining less than normal to size, so as to bring system throughput loss of energy.

（3）The loss of performance is brought under TTI binding using high-order adjustment.

Traditional data transfer supports the high order modulation of such as 16QAM and 64QAM in addition to using QPSK modes, also. But inventor has found, under the low SINR environment using TTI binding, one is had with reference to low rate coding according to high order modulation Fixed performance loss.As shown in fig. 7, under identical transport block size, QPSK is adopted under TTI binding（" * " legend）Modulation Compare 64QAM（" O " legend）Performance is more preferable.

The content of the invention

The invention solves the problems that a technical problem be to provide a kind of ascending transmission method of TTI binding, system and movement Terminal, it is possible to increase up coverage rate and avoid performance loss.

According to an aspect of the invention, it is proposed that a kind of ascending transmission method of TTI binding, including mobile terminal receives base Stand send TTI binding parameter and transport block size determine parameter, TTI binding parameter includes whether to carry out TTI number changes TTI binding is transmitted；If TTI binding parameter indicates the TTI binding transmission for carrying out TTI number changes, local from mobile terminal The corresponding transmission patterns of type of the business currently used with mobile terminal are read, in the transmission patterns for being read, is carried out again TTI numbers included in the TTI binding of biography are less than the TTI numbers included in the TTI binding of transmission for the first time；According to movement The type of the currently used business of terminal, the TTI binding transmission for whether carrying out TTI number changes, included in TTI binding The number and transport block size of TTI determine the size of parameter determination transmission block；According to the transmission patterns and transmission block that are read The size transmission currently used business of mobile terminal data；HARQ feedback according to receiving judges whether to need to carry out data Retransmit, data re-transmission is carried out if desired, then transmitted again according to the size of the transmission patterns and transmission block that are read mobile whole The data of the currently used business in end.

According to a further aspect in the invention, it is also proposed that a kind of ascending transmission method of TTI binding, including mobile terminal connects The TTI binding parameter and transport block size for receiving base station transmission determines parameter, and TTI binding parameter includes whether to be transmitted block size The TTI binding transmission of adjustment；If TTI binding parameter indicates the TTI binding transmission for being transmitted block size adjustment, from movement Terminal local reads the corresponding transmission patterns of type of the business currently used with mobile terminal；If mobile terminal is currently used Business be data service, then according to whether be transmitted the TTI binding transmission of block size adjustment, included in TTI binding The number and transport block size of TTI determine the size of parameter determination transmission block；According to the transmission patterns and transmission block that are read The size transmission currently used business of mobile terminal data；HARQ feedback according to receiving judges whether to need to carry out data Retransmit, data re-transmission is carried out if desired, then transmitted again according to the size of the transmission patterns and transmission block that are read mobile whole The data of the currently used business in end.

According to another aspect of the invention, it is also proposed that a kind of mobile terminal, including the first parameter receiving unit, for connecing The TTI binding parameter and transport block size for receiving base station transmission determines parameter, and TTI binding parameter includes whether to carry out TTI number changes The TTI binding transmission of change；First transmission patterns determining unit, if indicating to carry out TTI number changes for TTI binding parameter TTI binding is transmitted, then the corresponding transmission patterns of the type for locally reading the business currently used with mobile terminal from mobile terminal, In the transmission patterns for being read, the TTI numbers included in the TTI binding for being retransmitted are tied up less than the TTI of transmission for the first time TTI numbers included in fixed；First transport block size determining unit, for according to the class of the currently used business of mobile terminal Type, the TTI binding transmission for whether carrying out TTI number changes, the number of TTI included in TTI binding and transport block size Determine the size of parameter determination transmission block；Data transmission unit, transmits according to the size of the transmission patterns and transmission block for being read The data of the currently used business of mobile terminal, judge whether to need to carry out data re-transmission according to the HARQ feedback for receiving, if Need to carry out data re-transmission, then mobile terminal is transmitted according to the size of the transmission patterns and transmission block that are read again currently used Business data.

In accordance with a further aspect of the present invention, it is also proposed that a kind of mobile terminal, including the second parameter receiving unit, for connecing The TTI binding parameter and transport block size for receiving base station transmission determines parameter, and TTI binding parameter includes whether to carry out TTI number changes The TTI binding transmission of change；Second transmission patterns determining unit, if indicating to carry out TTI number changes for TTI binding parameter TTI binding is transmitted, then the corresponding transmission patterns of the type for locally reading the business currently used with mobile terminal from mobile terminal； Second transport block size determining unit, if being data service for the currently used business of mobile terminal, according to whether entering The TTI binding transmission of row TTI numbers change, the number of the TTI included in TTI binding and transport block size determine that parameter is true Determine the size of transmission block；Data transmission unit, for mobile eventually according to the transmission of the size of the transmission patterns and transmission block for being read The data of the currently used business in end, judge whether to need to carry out data re-transmission according to the HARQ feedback for receiving, and enter if desired Row data are retransmitted, then transmit the currently used business of mobile terminal again according to the size of the transmission patterns and transmission block that are read Data.

In accordance with a further aspect of the present invention, it is also proposed that a kind of uplink system of TTI binding, including base station and aforementioned Mobile terminal, wherein, base station to mobile terminal send determined by TTI binding parameter and transport block size determine parameter.

The ascending transmission method of TTI binding, system and mobile terminal that the present invention is provided, due to passing to data service The TTI numbers included in TTI binding are considered when defeated, therefore can effectively prevent the loss of handling capacity.Additionally, the application is not The maximization for transmitting the shared TTI numbers of each bag is only taken into account, simultaneously because the increase of number of retransmissions is also significantly improved Diversity, therefore, it can be effectively improved due to the caused up coverage effect of frequency increase and/or site distance increase institute not Good problem.

Description of the drawings

Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application.Attached In figure：

Fig. 1 is the TTI binding transmission technology schematic diagram in the LTE R8 of prior art.

Fig. 2 is prior art one（VoIP business）Schematic diagram.

Fig. 3 is prior art two（VoIP business）Schematic diagram.

Fig. 4 is the resource conflict problem schematic diagram that prior art one is present.

Fig. 5 is prior art three（Data service）Schematic diagram.

Fig. 6 is transport block size mapping schematic diagram.

Fig. 7 is the Performance comparision schematic diagram of different modulating series.

Fig. 8 is the schematic flow sheet of one embodiment of the ascending transmission method of TTI binding of the present invention.

Fig. 9 is a transmission patterns example schematic of VoIP business of the present invention.

Figure 10 shows the schematic diagram that present invention, avoiding resource contention.

Figure 11 is the example schematic of a transmission patterns of data service of the present invention.

Figure 12 is the example schematic of another transmission patterns of data service of the present invention.

Figure 13 is the schematic flow sheet of another embodiment of the ascending transmission method of TTI binding of the present invention.

Figure 14 is the new transport block size mapping relations schematic diagram that the present invention is created.

Figure 15 is another new transport block size mapping relations schematic diagram that the present invention is created.

Figure 16 is the schematic flow sheet of the another embodiment of the ascending transmission method of TTI binding of the present invention.

Figure 17 is the structural representation of one embodiment of mobile terminal of the present invention.

Figure 18 is the structural representation of another embodiment of mobile terminal of the present invention.

Figure 19 is the structural representation of the another embodiment of mobile terminal of the present invention.

Figure 20 is the structural representation of one embodiment of the uplink system of TTI binding of the present invention.

Figure 21 is the structural representation of another embodiment of the uplink system of TTI binding of the present invention.

Specific embodiment

The present invention is described more fully with reference to the accompanying drawings, wherein illustrating the exemplary embodiment of the present invention.This The exemplary embodiment of invention and its illustrate for explaining the present invention, but do not constitute inappropriate limitation of the present invention.

It is below illustrative to the description only actually of at least one exemplary embodiment, never as to the present invention And its any restriction applied or use.

As it was previously stated, TTI binding technology is introduced in LTE R8, to improve the edges cover ability of VoIP business.But, If using higher carrier frequency and/or bigger site distance in actually arranging net, even if using the TTI binding skill of LTE R8 Art, its up covering still is apparent not enough.

Following embodiments of the present invention cover limited problem, base for cell edge user uplink in current LTE system Propose a kind of enhanced TTI binding transmission technology further to improve the up covering performance of LTE system in LTE R8.Connect down Come, the enhanced TTI binding technology will in detail be told about by instantiation.

As shown in figure 8, the embodiment may comprise steps of：

S802, mobile terminal receives the TTI binding parameter and transport block size of base station transmission and determines parameter, wherein, TTI is tied up Determine parameter to include whether to carry out the TTI binding transmission of TTI number changes, i.e. whether using enhanced TTI binding skill of the invention Art；

Alternatively, may there are various transmission patterns in the currently used business of mobile terminal, therefore, TTI binding parameter The corresponding transmission patterns mark of the type of the business currently used with mobile terminal can also be included, transmitted with further increase The motility that pattern is selected.

S804, mobile terminal reads TTI binding parameter, if TTI binding parameter indicates the TTI for carrying out TTI number changes Binding transmission, then the corresponding transmission patterns of the type for locally reading the business currently used with mobile terminal from mobile terminal, its In, the TTI numbers of bound transmission in each Transmission Time Interval that transmission patterns refer in the range of propagation delay time, really In fixed transmission patterns, the TTI numbers included in the TTI binding for being retransmitted are less than institute in the TTI binding of transmission for the first time Comprising TTI numbers, the type of the currently used business of mobile terminal can be VoIP business or data service；

Alternatively, if comprising transmission patterns mark in the TTI binding parameter that received of mobile terminal, according to storage Transmission patterns are identified and determined and the transmission patterns corresponding transmission patterns of mark for being received with the corresponding relation of transmission patterns.

S806, type according to the currently used business of mobile terminal, the TTI binding for whether carrying out TTI number changes are passed The number and transport block size of the TTI included in defeated, TTI binding determine the size of parameter determination transmission block；

By taking VoIP business as an example, if it is determined that mobile terminal carries out the TTI binding transmission of TTI number changes, then according to MCS Index and PRB numbers determine the size of transmission block；By taking data service as an example, if it is determined that mobile terminal carries out TTI number changes TTI binding transmission, then transmission block is determined according to the number of the TTI included in MCS indexes, PRB numbers and TTI binding Size.

S808, according to the size of the transmission patterns and transmission block for being read the number of the currently used business of mobile terminal is transmitted According to.

S810, judges whether to need to carry out data re-transmission according to the HARQ feedback for receiving, and data re-transmission is carried out if desired, Then transmit the data of the currently used business of mobile terminal again according to the size of the transmission patterns and transmission block that are read.

In this embodiment, because the TTI numbers included in the TTI binding that retransmitted are less than transmission for the first time TTI numbers included in TTI binding, on the one hand, phase by the way of data re-transmission is carried out using fixed TTI numbers with LTE R8 Than save considerably system resource；On the other hand, for data service, due to considering TTI included in TTI binding Several impacts to transport block size, therefore can also effectively prevent the loss of handling capacity.Additionally, the embodiment has not only taken into account biography The maximization of the shared TTI numbers of defeated each bag, simultaneously because the increase of number of retransmissions also significantly improves diversity, because This, can be effectively improved due to the bad problem of frequency increase and/or the caused up coverage effect of site distance increase institute.

Alternatively, before step S802, base station can be according to the uplink wireless channel quality and mobile terminal measured The type of currently used business determines TTI binding parameter, and determines transmission block according to the uplink wireless channel quality measured Size determines parameter, wherein, transport block size determines that parameter can be included for the MCS indexes of the currently used traffic assignments of user With PRB numbers.

Specifically, in an example, base station can be by the uplink wireless channel quality measured and setting channel quality Thresholding is compared；It is no if less than setting channel quality thresholds, it is determined that carry out the TTI binding transmission of TTI number changes Then, TTI binding transmission is not carried out；Wherein, the class of the size with the currently used business of mobile terminal of channel quality thresholds is set Type is related.

In another example, base station can by the uplink wireless channel quality measured respectively with the first channel quality thresholds It is compared with second channel quality threshold；If being less than the first channel quality thresholds, it is determined that carry out TTI number changes TTI binding is transmitted, and if above second channel quality threshold, does not then carry out TTI binding transmission, otherwise, is carried out TTI numbers and is fixed TTI binding transmission；Wherein, the first channel quality thresholds are less than second channel quality threshold, the first channel quality thresholds and the The type of the size of the two channel quality thresholds business currently used to mobile terminal is related.

Can be seen that channel condition is poor, user is located at cell edge or due to tranmitting frequency from above-mentioned two example It is higher and under the scene such as cause path loss larger, can be improved by the TTI binding transmission means of the TTI numbers of present invention change Due to the bad problem of up covering performance caused by above-mentioned situation.

It is pointed out that the TTI binding transmission method of the TTI numbers change of the present invention is not limited to uplink signal-channel quality Poor scene, equally, it can also be applied to the preferable scene of channel quality.

By taking VoIP business as an example, if the TTI binding transmission method for needing to carry out TTI number changes is judged in base station, The TTI numbers adopted when transmitting again every time are equal, but the TTI numbers adopted when both less than binding transmission for the first time.

As shown in figure 9, in certain transmission patterns, in first Transmission Time Interval（That is, from the 0th subframe to 15 subframes）, for the first time the TTI numbers included in the TTI binding of transmission are 8, in each follow-up Transmission Time Interval Interior, the TTI numbers included in each TTI binding transmitted again are 4.In the time delay range of 52 TTI, each Bag can at most carry out 4 transmission（Wherein, including 3 times re-transmission）, due to the increase of the number of transmissions, significantly improve the effect of diversity Really, and each bag can at most take 8+3*4=20 TTI, the maximum TTI number shared equal to each bag is transmitted, on the one hand Avoid Xin Bao and retransmit the resource contention of bag, as shown in Figure 10, on the other hand also maximising each wraps accumulated energy Amount, improves the reception energy of upward signal, improves up detection performance, and then solves the problems, such as that up covering is poor.

By taking data service as an example, if the TTI binding transmission method for needing to carry out TTI number changes is judged in base station, With the increase to same bag data the number of transmissions, the TTI numbers included in TTI binding are gradually decreased, as shown in figure 11, its In, the TTI numbers relation included in each TTI binding can be：n0>=n1>=n2>=n3 ..., n0>=n1>=n2> n3,…、n0>=n1>n2>N3 ... or n0>n1>n2>N3 ... etc..

As shown in figure 12, in fig. 11, n0 be 8, n1 be 6, n2 be 4, n3 be 2.In figure 12 it can be seen that due to data Business is lower than the requirement of VoIP service delay, therefore, for save resources, transmit again every time bound in relative last time transmission TTI numbers tail off.Further, since the increase of the number of transmissions also improves diversity, also carry while Internet resources are saved High up overlay area.

Referring back to Fig. 7, due to using high order modulation performance being caused in combination with low rate coding to have certain loss, because This, when uplink signal-channel quality is poor, the corresponding modulation system of MCS indexes can be QPSK.

As shown in figure 13, the embodiment may comprise steps of：

S1302, eNB determine whether the TTI binding using the TTI numbers change of the present invention according to uplink wireless channel quality Transmission method, and transmission patterns mark is determined according to the type of the currently used business of uplink wireless channel quality and mobile terminal Know, whether eNB can pass through high-level signaling will carry out TTI binding transmission and the transmission patterns identification notification of TTI number changes To mobile terminal.

Specifically, a certain channel quality thresholds can be set, when the uplink signal-channel quality of base station measurement is less than the channel matter During amount thresholding, the TTI binding transmission method changed using TTI numbers does not otherwise carry out TTI binding transmission；Or, can also set Two channel quality thresholds are put, when measured channel quality is less than low threshold（That is, the first channel quality thresholds）When, adopt The TTI binding transmission method of TTI numbers change, higher than high threshold（That is, second channel quality threshold）When do not carry out TTI binding biography It is defeated, using TTI binding transmission method traditional in LTE R8 when between low threshold and high threshold（That is, TTI numbers are fixed TTI binding is transmitted）.It is for instance possible to use the decision method of table 1 below：

Table 1

Above-mentioned threshold value can be with difference for different types of service.

Whether S1304, mobile terminal knows whether the terminal in the upstream direction using TTI according to the information that eNB is notified The TTI binding transmission technology and transmission patterns mark of number change.If the TTI binding transmission skill changed using TTI numbers Art, then according to the corresponding transmission patterns of transmission patterns mark inquiry, and realize the transmission of data based on the transmission patterns.

Specifically, if user terminal it is currently used be VoIP business, mobile terminal can be according to the TTI shown in Fig. 9 Binding pattern is transmitted and retransmits, it should be pointed out that for VoIP business, its transmission patterns is not limited to shown in Fig. 9 Type, according to the transmission patterns mark that base station sends transmission patterns corresponding with the mark can be in the terminal found out. Wherein, each bag adopts 8 TTI bindings when transmitting first time, and 4 TTI bindings are adopted during re-transmission, retransmits at intervals of 16 TTI.Assume that each TTI is 1ms, in the time delay range of 52ms, each bag can at most carry out 4 transmission.

If user terminal it is currently used be data service, mobile terminal can be according to the TTI binding figure shown in Figure 11 Case is transmitted and retransmits, and is the characteristics of its is maximum, each bag when retransmitting, with the increase of number of retransmissions, in TTI binding The number of TTI is gradually decreased.Assume as shown in figure 11, every time the number of TTI is successively n0, n1 in TTI binding during transmission, N2 ..., then have n0>=n1>=n2 ....Specifically, the TTI binding pattern shown in Figure 12 can be adopted.

It is pointed out that the transmission patterns shown in Fig. 9 are a special cases of transmission patterns shown in Figure 11.

S1306, user determines transport block size, and the transmission patterns determined according to step S1304 are transmitted.

With regard to the determination of transport block size, if VoIP business, although using the TTI of the TTI numbers change of the present invention Binding transmission method, but because VoIP adopts constant transfer rate, therefore sent out according to base station still according to traditional method The MCS indexes for sending and PRB numbers are directly searched in Fig. 6 transport block size mapping tables.Wherein it is possible to pass through table 2 below MCS indexes are mapped as into corresponding TBS（Transport Block Size, transport block size）Index：

Table 2

When the presently used business of mobile terminal is data service and adopts the TTI of the TTI numbers change of the present invention During binding transmission method, if be not modified to the transport block size mapping table shown in Fig. 6, i.e. being made equal based on TTI numbers is The determination of block size is transmitted under 1 hypothesis, the transport block size for obtaining will certainly be caused less than normal, so as to bring systematic function Loss.

Therefore, in the TTI binding transmission method changed using data service and using TTI numbers of the invention, such as Fruit is also inquired about based on the transport block size mapping table shown in Fig. 6, then not only need to consider MCS indexes and PRB numbers, while It is also contemplated that the TTI numbers included in each binding.

Specifically, it is possible to use make a look up with VoIP business identical transport block size mapping tables, but, need to be by PRB Number is multiplied as new PRB numbers with the TTI numbers included in each binding, then the TBS indexes mapped out with MCS indexes are altogether Determine transport block size with as querying condition；A new transport block size mapping table can also be created, it is as shown in figure 14 New Table A, PRB number Ns therein_PRBThe content of corresponding row is PRB number Ns in the original table of left side_PRBWrapped in binding with each The content of the corresponding row of the product of the TTI numbers for containing.For example, the PRB numbers in the new Table A in the right are the interior of the row corresponding to 4 It is 16 to hold for PRB numbers in the original table of the left side（4x4）The content of corresponding row, it is assumed here that TTI included in TTI binding Number is 4.

Can be seen that from the transport block size mapping table shown in Figure 14 and still passed in the case where uplink signal-channel quality is excessively poor Defeated more transmission block, is likely to result in BLER higher, it is contemplated that this problem, and inventor is carried out to the new Table A shown in Figure 14 Amendment, middle table as shown in figure 15.In the new Table A for creating, insert some less than current in every string foremost Transport block size numerical value, the numerical value that the numerical value can be in the row corresponding to certain PRB in former table foremost, for example, will scheme PRB is that the content of row corresponding to 4 is moved down in the new Table A created in 14, then will be minimum in the corresponding row of identical PRB in former table 6 value { 88,144,176,208,256,328 } be plugged into, to ensure in the case where uplink signal-channel quality is excessively poor Low volume data can also correctly be transmitted.

Can adopt with the following method when implementing：

（1）The transport block size mapping table shown in Fig. 6 is only configured in base station and mobile terminal, now, for data industry Business, needs are inquired about according to the number of the TTI included in MCS indexes, PRB numbers and TTI binding；

（2）The new Table A shown in Figure 14 is configured in base station and mobile terminal, now, for data service, can basis MCS indexes and PRB numbers are inquired about；

（3）The revision table of the centre shown in Figure 15 is configured in base station and mobile terminal, now, for data service, can To be inquired about according to MCS indexes and PRB numbers.

Clearly as the third collocation method can also correctly transmit few portion in the case where uplink signal-channel quality is excessively poor Divided data, therefore first two method is better than in the case where uplink signal-channel quality is poor.

As shown in figure 16, the embodiment may comprise steps of：

S1602, mobile terminal receives the TTI binding parameter and transport block size of base station transmission and determines parameter, TTI binding ginseng Number includes whether the TTI binding transmission for being transmitted block size adjustment, i.e. consider that each TTI is tied up when transport block size is calculated TTI numbers included in fixed, wherein, transport block size determines that parameter is included for the MCS of the currently used traffic assignments of user Index and PRB numbers, in order to not reduce the performance of low rate coding mode, it is proposed that the corresponding modulation system of MCS indexes is QPSK.

S1604, if TTI binding parameter indicates the TTI binding transmission for being transmitted block size adjustment, from mobile terminal The corresponding transmission patterns of the local type for reading the business currently used with mobile terminal.

S1606, if the currently used business of mobile terminal is data service, according to whether being transmitted block size tune The number and transport block size of the TTI included in whole TTI binding transmission, TTI binding determines parameter determination transmission block Size；

For example, if it is determined that upstream data service is transmitted the TTI binding transmission of block size adjustment, then can basis The number of the TTI included in MCS indexes, PRB numbers and TTI binding determines the transport block size of data service, specifically, The transport block size computational methods of data service are referred in abovementioned steps S1306 the determination to data service transport block size Method, i.e.

The transport block size mapping table shown in Fig. 6 is only configured in base station and mobile terminal, is needed according to MCS indexes, PRB The number inquiry of the TTI included in number and TTI binding obtains the transport block size of data service；It is whole with mobile in base station The new Table A shown in Figure 14 is configured in end, the transport block size of data service can be obtained according to MCS indexes and the inquiry of PRB numbers； The revision table of the centre shown in Figure 15 is configured in base station and mobile terminal, can be according to MCS indexes and PRB numbers inquiry data The transport block size of business.

S1608, according to the size of the transmission patterns and transmission block for being read the currently used business of mobile terminal is transmitted Data, judge whether to need to carry out data re-transmission according to the HARQ feedback for receiving, and data re-transmission are carried out if desired, then according to institute The transmission patterns of reading and the size of transmission block transmit the data of the currently used business of mobile terminal again.

In this embodiment, although the transmission patterns of data service are same as the prior art, but, due to calculate transmission The number of the TTI included in TTI binding is considered during block size, therefore, it is to avoid transport block size problem less than normal, effectively Ensure that the throughput performance of system.

Similar with the embodiment in Fig. 8, before step S1602, base station is according to the uplink wireless channel quality measured The type of the business currently used with mobile terminal determines TTI binding parameter；It is true according to the uplink wireless channel quality measured Determine transport block size and determine parameter.

Specifically, in an example, can be by the uplink wireless channel quality measured and setting channel quality thresholds It is compared；If less than setting channel quality thresholds, it is determined that be transmitted the TTI binding transmission of block size adjustment, otherwise, TTI binding transmission is not carried out.

In another example, can by the uplink wireless channel quality measured respectively with the first channel quality thresholds and Two channel quality thresholds are compared；If being less than the first channel quality thresholds, it is determined that be transmitted the TTI of block size adjustment Binding transmission, if above second channel quality threshold, does not then carry out TTI binding transmission, otherwise, is fixed transport block size TTI binding transmission（That is, the traditional TTI binding transmission method in LTE R8, passes with the TTI binding that aforesaid TTI numbers are fixed Transmission method is identical）；Wherein, the first channel quality thresholds are less than second channel quality threshold.

It will appreciated by the skilled person that realize the whole and part steps of said method embodiment can pass through Completing, aforesaid program can be stored in a computing device read/write memory medium the related hardware of programmed instruction, the journey Sequence upon execution, performs the step of including said method embodiment, and aforesaid storage medium can include ROM, RAM, magnetic disc It is various with CD etc. can be with the medium of store program codes.

As shown in figure 17, the mobile terminal 1 700 of the embodiment can include that the first parameter receiving unit 1702, first is passed Defeated pattern determination unit 1704, the first transport block size determining unit 1706 and data transmission unit 1708.

Wherein, the first parameter receiving unit 1702 receives TTI binding parameter and the transport block size determination ginseng that base station sends Number, TTI binding parameter includes whether the TTI binding transmission for carrying out TTI number changes, and it is use that transport block size determines that parameter includes The MCS indexes and PRB numbers of the currently used traffic assignments in family, in order to improve the performance of low rate coding mode, MCS indexes are right The modulation system answered can be QPSK；If TTI binding parameter indicates that the TTI binding for carrying out TTI number changes is transmitted, first Transmission patterns determining unit 1704 is from the corresponding biography of type that mobile terminal locally reads the business currently used with mobile terminal Defeated pattern, in the transmission patterns for being read, the TTI numbers included in the TTI binding for being retransmitted are transmitted less than for the first time TTI binding included in TTI numbers；First transport block size determining unit 1706 is according to the currently used industry of mobile terminal The type of business, the TTI binding transmission for whether carrying out TTI number changes, the number of TTI included in TTI binding and transmission Block size determines the size of parameter determination transmission block；Data transmission unit 1708 is according to the transmission patterns and transmission block for being read The data of the currently used business of size transmission mobile terminal, judge whether to need to carry out data weight according to the HARQ feedback for receiving Pass, data re-transmission is carried out if desired, then mobile terminal is transmitted according to the size of the transmission patterns and transmission block that are read again The data of currently used business.

Wherein, the type of the currently used business of mobile terminal is VoIP business or data service.

Alternatively, TTI binding parameter can also include the corresponding biography of the type of the business currently used with mobile terminal Defeated pattern identification, the first transmission patterns determining unit includes working as with mobile terminal in the TTI binding parameter that mobile terminal is received The corresponding transmission patterns of the type of the front business for using read transmission figure corresponding with transmission patterns mark in the case of identifying Case.

It is the TTI binding transmission that VoIP business and determination carry out TTI number changes in the currently used business of mobile terminal In the case of, the TTI numbers adopted when data transmission unit is retransmitted every time are equal；It is number in the currently used business of mobile terminal According to business and determine carry out TTI number changes TTI binding transmit in the case of, as data transmission unit is to same bag data The increase of the number of transmissions, the TTI numbers included in TTI binding are gradually decreased.

As shown in figure 18, the first transmission block compared with the embodiment in Figure 17, in the mobile terminal 1 800 of the embodiment Size determining unit 1802 can include type of service judgment sub-unit 1802a, VoIP business transport block size determination subelement 1802b and data traffic transmission block size determination subelement 1802c.

Wherein, type of service judgment sub-unit 1802a judges the type of the currently used business of mobile terminal；Mobile whole The currently used business in end is VoIP business and carries out in the case that the TTI binding of TTI number changes transmits that VoIP business is passed Defeated block size determination subelement 1802b determines the size of transmission block according to MCS indexes and PRB numbers；Currently make in mobile terminal With business be data service and carry out TTI number changes TTI binding transmit in the case of, data traffic transmission block size Determination subelement 1802c determines transmission block according to the number of the TTI included in MCS indexes, PRB numbers and TTI binding Size.

As shown in figure 19, the mobile terminal 1 900 of the embodiment can include that the second parameter receiving unit 1902, second is passed Defeated pattern determination unit 1904, the second transport block size determining unit 1906 and data transmission unit 1908.

Wherein, the second parameter receiving unit 1902 receives TTI binding parameter and the transport block size determination ginseng that base station sends Number, TTI binding parameter includes whether the TTI binding transmission for being transmitted block size adjustment, and transport block size determines that parameter includes For the MCS indexes and PRB numbers of the currently used traffic assignments of user, the corresponding modulation system of MCS indexes is QPSK；If TTI binding parameter indicates the TTI binding transmission for being transmitted block size adjustment, then the second transmission patterns determining unit 1904 is from shifting Dynamic terminal local reads the corresponding transmission patterns of type of the business currently used with mobile terminal；If mobile terminal currently makes Business is data service, then the second transport block size determining unit 1906 is according to whether be transmitted block size adjustment The number and transport block size of the TTI included in TTI binding transmission, TTI binding determine the size of parameter determination transmission block； Data transmission unit 1908 transmits the currently used business of mobile terminal according to the size of the transmission patterns and transmission block for being read Data, according to receive HARQ feedback judge whether to need to carry out data re-transmission, data re-transmission is carried out if desired, then basis The transmission patterns for being read and the size of transmission block transmit the data of the currently used business of mobile terminal again.

As shown in figure 20, the system 2000 of the embodiment can include base station 2002 and mobile terminal 2004, wherein, it is mobile Terminal 2004 can be to realize by the way of shown in Figure 17, Figure 18 or Figure 19, and base station 2002 to mobile terminal 2004 sends institute really Fixed TTI binding parameter and transport block size determines parameter.

As shown in figure 21, compared with the embodiment in Figure 20, the base station 2102 in system 2100 in the embodiment can be with Determine parameter determination unit 2102b including TTI binding parameter determination unit 2102a and transport block size.

Wherein, TTI binding parameter determination unit 2102a works as according to the uplink wireless channel quality and mobile terminal measured The type of the front business for using determines TTI binding parameter；Transport block size determines parameter determination unit 2102b according to measuring Uplink wireless channel quality determines that transport block size determines parameter.

When mobile terminal by the way of shown in Figure 17 or Figure 18 when realizing：

In an example, TTI binding parameter determination unit 2102a can include the first channel quality comparing subunit and First transmission means determination subelement, wherein, the first channel quality comparing subunit is by the uplink wireless channel quality measured It is compared with setting channel quality thresholds；If less than setting channel quality thresholds, the first transmission means determination subelement It is determined that carrying out the TTI binding transmission of TTI number changes, otherwise, TTI binding transmission is not carried out, wherein, set channel quality thresholds The size business currently used to mobile terminal type it is related.

In another example, TTI binding parameter determination unit 2102a can include second channel quality comparing subunit and Second transmission means determination subelement, wherein, second channel quality comparing subunit is by the uplink wireless channel quality measured It is compared with the first channel quality thresholds and second channel quality threshold respectively；If being less than the first channel quality thresholds, Second transmission means determination subelement determines the TTI binding transmission for carrying out TTI number changes, if above second channel quality gate Limit, then do not carry out TTI binding transmission, otherwise, carries out the TTI binding transmission of TTI number fixations, wherein, the first channel quality door Limit is current with mobile terminal less than the size of second channel quality threshold, the first channel quality thresholds and second channel quality threshold The type of the business for using is related.

When mobile terminal by the way of shown in Figure 19 when realizing：

In an example, TTI binding parameter determination unit 2102a can include the first channel quality comparing subunit and First transmission means determination subelement, wherein, the first channel quality comparing subunit is by the uplink wireless channel quality measured It is compared with setting channel quality thresholds；If less than setting channel quality thresholds, the first transmission means determination subelement It is determined that being transmitted the TTI binding transmission of block size adjustment, otherwise, TTI binding transmission is not carried out.

In another example, TTI binding parameter determination unit 2102a can include second channel quality comparing subunit and Second transmission means determination subelement, wherein, second channel quality comparing subunit is by the uplink wireless channel quality measured It is compared with the first channel quality thresholds and second channel quality threshold respectively；If being less than the first channel quality thresholds, Second transmission means determination subelement determines the TTI binding transmission for being transmitted block size adjustment, if above second channel matter Amount thresholding, then do not carry out TTI binding transmission, otherwise, is fixed the TTI binding transmission of transport block size, wherein, the first channel Quality threshold is less than second channel quality threshold.

Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and it The difference of his embodiment, identical and similar part can be with cross-reference between each embodiment.For device embodiment For, due to itself and embodiment of the method basic simlarity, so description is fairly simple, related part may refer to embodiment of the method Partial explanation.

The above embodiment of the present invention is strengthened and has been improved to the existing TTI binding technologies of LTE, and then is enhanced Capable covering power, is embodied in the following aspects：

（1）The TTI binding transmission diversity effect of VoIP business is improve, while resource contention is avoided, so as to improve Performance.

Transmission and re-transmission TTI binding method for designing shown in Fig. 9 meets transmission, and each wraps shared TTI numbers maximum Change, i.e. 20 TTI, so as to reach the energy accumulation effect of maximum.Further, compared with the prior art one shown in Fig. 2, The present invention solves Xin Bao and retransmits the resource conflict problem of bag, as shown in Figure 10.In addition, with the prior art two shown in figure three Compare, the maximum retransmission of each bag is increased to 3 times by 1 time, so as to be effectively improved the diversity of transmission.

（2）The retransmission resource reduced under the transmission of data service TTI binding is wasted.

Compared with the TTI binding transmission method that traditional TTI numbers are fixed, in the transmission patterns shown in Figure 11, each Bag, with the increase of number of retransmissions, gradually decreases TTI numbers shared in TTI binding when retransmitting.The method can be effective The wasting of resources that fixed number TTI binding is brought is reduced, so as to improve the retransmission performance of data service.

（3）The precision that the lower transport block size of data service TTI binding transmission determines is improve, and then improves gulping down for system Tuhe covers.

When the TTI binding transmission means of the TTI binding transmission means or transport block size adjustment changed using TTI numbers When, if be not modified to original transport block size mapping table, i.e. be made equal based on being passed under the hypothesis that TTI numbers are 1 The determination of defeated block size, will certainly cause the transport block size for obtaining less than normal, so as to bring systemic loss of energy.The present invention's Above-described embodiment further improves the precision that transport block size determines by being modified to transmission block mapping table, so as to improve The handling capacity of system.Further, because the above embodiment of the present invention still may be used in the case where uplink signal-channel quality is excessively poor To transmit low volume data, so as to further enhancing the covering of system.

（4）Data service is limited to into fixed QPSK modulation when TTI binding is transmitted can obtain than high order modulation more Good performance.

Although being described in detail to some specific embodiments of the present invention by example, the skill of this area Art personnel it should be understood that above example is merely to illustrate, rather than in order to limit the scope of the present invention.The skill of this area Art personnel to above example it should be understood that can modify without departing from the scope and spirit of the present invention.This Bright scope is defined by the following claims.

Claims

1. a kind of ascending transmission method of TTI binding, it is characterised in that include：

Mobile terminal receives the TTI binding parameter and transport block size of base station transmission and determines parameter, and the TTI binding parameter includes Whether the TTI binding transmission of TTI number change is carried out；

If the TTI binding parameter indicates the TTI binding transmission for carrying out TTI number changes, local from the mobile terminal The corresponding transmission patterns of type of the business currently used with mobile terminal are read, in the transmission patterns for being read, is carried out again TTI numbers included in the TTI binding of biography are less than the TTI numbers included in the TTI binding of transmission for the first time；

Type according to the currently used business of the mobile terminal, the TTI binding transmission, the TTI that whether carry out TTI number changes The number of the TTI included in binding and the transport block size determine the size of parameter determination transmission block；

The data of the currently used business of the mobile terminal are transmitted according to the size of the transmission patterns and transmission block for being read；

HARQ feedback according to receiving judges whether to need to carry out data re-transmission, data re-transmission is carried out if desired, then according to institute The transmission patterns of reading and the size of transmission block transmit the data of the currently used business of the mobile terminal again；

Wherein, transmission patterns refer to the TTI numbers of bound transmission in each Transmission Time Interval in the range of propagation delay time.

2. the ascending transmission method of TTI binding according to claim 1, it is characterised in that methods described also includes：

The base station is true according to the type of the currently used business of the uplink wireless channel quality and the mobile terminal measured Determine TTI binding parameter；

The base station determines that transport block size determines parameter according to the uplink wireless channel quality measured.

3. the ascending transmission method of TTI binding according to claim 2, it is characterised in that the base station is according to measuring Uplink wireless channel quality and the type of the currently used business of the mobile terminal wrap the step of determining TTI binding parameter Include：

The uplink wireless channel quality measured is compared with setting channel quality thresholds；

If being less than the setting channel quality thresholds, it is determined that carry out the TTI binding transmission of TTI number changes, otherwise, do not enter Row TTI binding is transmitted；

Wherein, the type of the size of the setting channel quality thresholds business currently used to the mobile terminal is related.

4. the ascending transmission method of TTI binding according to claim 2, it is characterised in that the base station is according to measuring Uplink wireless channel quality and the type of the currently used business of the mobile terminal wrap the step of determining TTI binding parameter Include：

The uplink wireless channel quality measured is compared respectively with the first channel quality thresholds and second channel quality threshold Compared with；

If being less than first channel quality thresholds, it is determined that carry out the TTI binding transmission of TTI number changes, if above The second channel quality threshold, then do not carry out TTI binding transmission, otherwise, carries out the TTI binding transmission of TTI number fixations；

Wherein, first channel quality thresholds be less than the second channel quality threshold, first channel quality thresholds and The type of the size of the second channel quality threshold business currently used to the mobile terminal is related.

5. the ascending transmission method of TTI binding according to claim 1, it is characterised in that the mobile terminal currently makes The type of business is VoIP business or data service.

6. the ascending transmission method of TTI binding according to claim 5, it is characterised in that current in the mobile terminal The business for using is VoIP business and determination carry out TTI number changes TTI binding transmit in the case of, adopt when retransmitting every time TTI numbers it is equal.

7. the ascending transmission method of TTI binding according to claim 5, it is characterised in that current in the mobile terminal In the case that the business for using is data service and to determine that the TTI binding for carrying out TTI number changes is transmitted, with to same bag number According to the increase of the number of transmissions, the TTI numbers included in TTI binding are gradually decreased.

8. the ascending transmission method of TTI binding according to claim 5, it is characterised in that the transport block size determines Parameter includes the MCS indexes and PRB numbers for the currently used traffic assignments of the mobile terminal.

9. the ascending transmission method of TTI binding according to claim 8, it is characterised in that the corresponding tune of the MCS indexes Mode processed is QPSK.

10. the ascending transmission method of TTI binding according to claim 8, it is characterised in that worked as according to the mobile terminal The type of the front business for using, the TTI binding transmission for whether carrying out TTI number changes, TTI included in TTI binding The step of several and described transport block size determines the size of parameter determination transmission block includes：

The currently used business of the mobile terminal be VoIP business and carry out TTI number changes TTI binding transmission In the case of, the size of the transmission block is determined according to the MCS indexes and the PRB numbers；

The currently used business of the mobile terminal be data service and carry out TTI number changes TTI binding transmission In the case of, the transmission is determined according to the number of the TTI included in the MCS indexes, the PRB numbers and TTI binding The size of block.

The ascending transmission method of 11. TTI bindings according to claim 1, it is characterised in that the TTI binding parameter is also Including the corresponding transmission patterns mark of the type of the business currently used with mobile terminal, methods described also includes：

The TTI binding parameter received in the mobile terminal includes that the type of the business currently used with mobile terminal is corresponding Transmission patterns identify in the case of, the mobile terminal reads and the transmission patterns corresponding transmission patterns of mark.

12. a kind of ascending transmission methods of TTI binding, it is characterised in that include：

Mobile terminal receives the TTI binding parameter and transport block size of base station transmission and determines parameter, and the TTI binding parameter includes Whether the TTI binding transmission of block size adjustment is transmitted；

If the TTI binding parameter indicates the TTI binding transmission for being transmitted block size adjustment, from the mobile terminal sheet Ground reads the corresponding transmission patterns of type of the business currently used with mobile terminal, wherein, transmission patterns are referred to when transmitting The TTI numbers of bound transmission in each Transmission Time Interval in the range of prolonging；

If the currently used business of the mobile terminal is data service, according to whether being transmitted block size adjustment The number and the transport block size of the TTI included in TTI binding transmission, TTI binding determines parameter determination transmission block Size；

HARQ feedback according to receiving judges whether to need to carry out data re-transmission, data re-transmission is carried out if desired, then according to institute The transmission patterns of reading and the size of transmission block transmit the data of the currently used business of the mobile terminal again.

The ascending transmission method of 13. TTI bindings according to claim 12, it is characterised in that methods described also includes：

The ascending transmission method of 14. TTI bindings according to claim 13, it is characterised in that the base station is according to measurement The step of type of the currently used business of the uplink wireless channel quality and the mobile terminal that go out determines TTI binding parameter is wrapped Include：

If being less than the setting channel quality thresholds, it is determined that be transmitted the TTI binding transmission of block size adjustment, otherwise, TTI binding transmission is not carried out.

The ascending transmission method of 15. TTI bindings according to claim 13, it is characterised in that the base station is according to measurement The step of type of the currently used business of the uplink wireless channel quality and the mobile terminal that go out determines TTI binding parameter is wrapped Include：

If being less than first channel quality thresholds, it is determined that the TTI binding transmission of block size adjustment is transmitted, if high In the second channel quality threshold, then TTI binding transmission is not carried out, otherwise, the TTI binding for being fixed transport block size is passed It is defeated；

Wherein, first channel quality thresholds are less than the second channel quality threshold.

The ascending transmission method of 16. TTI bindings according to claim 12, it is characterised in that the transport block size is true Determine MCS indexes and PRB numbers that parameter includes for the currently used traffic assignments of the mobile terminal.

The ascending transmission method of 17. TTI bindings according to claim 16, it is characterised in that the MCS indexes are corresponding Modulation system is QPSK.

18. a kind of mobile terminals, it is characterised in that include：

First parameter receiving unit, the TTI binding parameter and transport block size for receiving base station transmission determines parameter, described TTI binding parameter includes whether the TTI binding transmission for carrying out TTI number changes；

First transmission patterns determining unit, if indicating the TTI binding for carrying out TTI number changes for the TTI binding parameter Transmission, then the corresponding transmission patterns of the type for locally reading the business currently used with mobile terminal from the mobile terminal, In the transmission patterns for being read, TTI binding of the TTI numbers included in the TTI binding for being retransmitted less than transmission for the first time Included in TTI numbers, wherein, it is bound in each Transmission Time Interval that transmission patterns refer in the range of propagation delay time The TTI numbers of transmission；

First transport block size determining unit, for according to the type of the currently used business of the mobile terminal, whether carry out The TTI binding transmission of TTI numbers change, the number of the TTI included in TTI binding and the transport block size determine parameter Determine the size of transmission block；

Data transmission unit, currently makes for transmitting the mobile terminal according to the size of the transmission patterns and transmission block for being read The data of business, judge whether to need to carry out data re-transmission according to the HARQ feedback for receiving, and data weight is carried out if desired Pass, then transmit the number of the currently used business of the mobile terminal again according to the size of the transmission patterns and transmission block that are read According to.

19. mobile terminals according to claim 18, it is characterised in that the class of the currently used business of the mobile terminal Type is VoIP business or data service.

20. mobile terminals according to claim 19, it is characterised in that be in the currently used business of the mobile terminal VoIP business and determination carry out TTI number changes TTI binding transmit in the case of, when the data transmission unit is retransmitted every time Using TTI numbers it is equal.

21. mobile terminals according to claim 19, it is characterised in that be in the currently used business of the mobile terminal Data service and determination carry out TTI number changes TTI binding transmit in the case of, as the data transmission unit is to same The increase of bag data the number of transmissions, the TTI numbers included in TTI binding are gradually decreased.

22. mobile terminals according to claim 19, it is characterised in that the transport block size determines that parameter is included for institute State the MCS indexes and PRB numbers of the currently used traffic assignments of mobile terminal.

23. mobile terminals according to claim 22, it is characterised in that the corresponding modulation system of the MCS indexes is QPSK。

24. mobile terminals according to claim 22, it is characterised in that the first transport block size determining unit bag Include：

Type of service judgment sub-unit, for judging the type of the currently used business of the mobile terminal；

VoIP business transport block size determination subelements, for the currently used business of the mobile terminal be VoIP business simultaneously And in the case of carrying out the TTI binding transmission of TTI number changes, the biography is determined according to the MCS indexes and the PRB numbers Defeated piece of size；

Data traffic transmission block size determination subelement, for the currently used business of the mobile terminal be data service simultaneously And in the case of carrying out the TTI binding transmission of TTI number changes, according to the MCS indexes, the PRB numbers and TTI binding Included in the number of TTI determine the size of the transmission block.

25. mobile terminals according to claim 18, it is characterised in that the TTI binding parameter also includes whole with mobile The transmission patterns that the type of the currently used business in end is corresponding are identified, and the first transmission patterns determining unit is in the movement The TTI binding parameter that terminal is received includes the corresponding transmission patterns mark of the type of the business currently used with mobile terminal In the case of read and the transmission patterns corresponding transmission patterns of mark.

26. a kind of mobile terminals, it is characterised in that include：

Second parameter receiving unit, the TTI binding parameter and transport block size for receiving base station transmission determines parameter, described TTI binding parameter includes whether the TTI binding transmission for being transmitted block size adjustment；

Second transmission patterns determining unit, if indicating that the TTI for being transmitted block size adjustment is tied up for the TTI binding parameter Fixed transmission, then the corresponding transmission patterns of the type for locally reading the business currently used with mobile terminal from the mobile terminal, Wherein, transmission patterns refer to the TTI numbers of bound transmission in each Transmission Time Interval in the range of propagation delay time；

Second transport block size determining unit, if for the currently used business of the mobile terminal be data service, root The number of the TTI according to whether being transmitted the TTI binding transmission of block size adjustment, included in TTI binding and the transmission Block size determines the size of parameter determination transmission block；

27. mobile terminals according to claim 26, it is characterised in that the transport block size determines that parameter is included for institute State the MCS indexes and PRB numbers of the currently used traffic assignments of mobile terminal.

28. mobile terminals according to claim 27, it is characterised in that the corresponding modulation system of the MCS indexes is QPSK。

The uplink system of 29. a kind of TTI bindings, it is characterised in that including any one of base station and claim 18-28 institute The mobile terminal stated, wherein, TTI binding parameter and transport block size are true determined by the base station to mobile terminal transmission Determine parameter.

The uplink system of 30. TTI bindings according to claim 29, it is characterised in that the base station includes：

TTI binding parameter determination unit, for currently being made according to the uplink wireless channel quality and the mobile terminal measured The type of business determines TTI binding parameter；

Transport block size determines parameter determination unit, for determining transport block size according to the uplink wireless channel quality measured Determine parameter.