CN103384187A

CN103384187A - TTI binding uplink transmission method and system and mobile terminal

Info

Publication number: CN103384187A
Application number: CN2012101360965A
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: 2013-11-06
Anticipated expiration: 2032-05-04
Also published as: CN103384187B

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

Ascending transmission method, system and the mobile terminal of TTI binding

Technical field

The present invention relates to wireless communication technology, especially, relate to a kind of ascending transmission method, system and mobile terminal of TTI binding.

Background technology

Except obtaining the higher availability of frequency spectrum, can realize effectively covering be the key of a kind of mobile communication technology of judgement and network operation quality.As the next-generation mobile communications standard of main flow-LTE(Long Term Evolution in the world after 3G (Third Generation) Moblie, Long Term Evolution), it has adopted special design aspect covering.Considering up is the bottleneck that covers, in LTE R8 to up VoIP(Voice over IP, IP phone) transmission adopted TTI(Transmission Time Interval, Transmission Time Interval) binding technology.

The principle of TTI binding technology for a transmission block, forms 4 redundancy versions that the rate-matched mode is different by chnnel coding as shown in Figure 1, and 4 different redundancy versions transmit in 4 continuous TTI respectively.1 corresponding same HARQ(Hybrid Automatic Repeat Request of 4 TTI that binding is interior, the mixed automatic retransfer request) process, the base station only produces HARQ feedback to last TTI,, just produces a HARQ feedback after 4 TTI receive that is.Fail correct demodulation and need re-transmission if some TTI bind, retransmitting is also the binding of 4 continuous T TI.In addition, the repeating method that the up employing of LTE is synchronous, that is, and by regular time the interval retransmit, the time interval that retransmits under TTI binding is 16 TTI.

The up VoIP transmission of adopting in LTE R8 as shown in Figure 1 can improve the network coverage effectively.But recent studies show that, because the scene that LTE R8 conceptual phase is considered is limited, if operator is actual when adopting higher carrier frequency, larger site distance in arranging net, even adopt the TTI binding technology of LTE R8, cover also inadequate.

Although defined binding technology in LTE R8, still there is the not enough problem that covers under some scene, cover not enough problem for this, following solution has been proposed:

For the VoIP business, compare with LTE R8, can adopt more TTI to bind, for example, 8TTI binding and two kinds of designs of 10TTI binding, respectively as shown in Figures 2 and 3.In prior art shown in Figure 2, each bag adopts 8 TTI to bind transmission, and in 60 TTI, each bag can carry out at most 3 times and retransmit, and retransmit interval is 16 TTI.In prior art shown in Figure 3 two, each bag adopts 10 TTI to bind transmission, and in 60 TTI, each bag can carry out at most 1 time and retransmit, and retransmit interval is 30 TTI.

Inventor's discovery, for the VoIP business, it has following characteristics and requirement in design:

(1) every 20 TTI come a new bag;

(2) the maximum transmitted time delay of each bag (under the maximum times re-transmission) is limited in about 50 TTI;

(3) the shared TTI number of each bag of the quality of performance and transmission (that is, each energy accumulation of wrapping what) and the diversity of channel are closely related.

Again referring to Fig. 2, in prior art shown in Figure 2, each bag adopts 8 TTI to bind transmission, in the situation that the maximum transmitted time delay of each bag is limited in 50 TTI left and right and retransmit interval is 16 TTI, can carry out at most 3 times retransmits, that is to say, each bag can take at most 8 * 4=32 TTI, has optimized each and has wrapped the energy of accumulation.But, because every 20 TTI can come a new bag, so potential problems of prior art one are: the resource contention of retransmission packet and Xin Bao can occur, as shown in Figure 4.Particularly, because every 20 TTI concerning VoIP can come a new bag, if at new bag due in, previous bag also needs to retransmit, and the conflict on resource will occur.

Further, the resource contention of retransmission packet and Xin Bao can bring two problems: the one, because user's transmitted power is limited, when limited power needs to be used for simultaneously sending new bag and retransmission packet, can bring performance loss; The 2nd, for fear of conflict, need to increase signaling and notify.

For VoIP, for fear of the resource contention of Xin Bao and retransmission packet, a basic criterion is exactly that the shared maximum TTI number of each bag of transmission can not surpass 20.Because every 20 TTI of VoIP come a new bag, surpass 20 if transmit the shared TTI sum of each bag, will inevitably bring the resource contention of Xin Bao and retransmission packet.

Referring to Fig. 3, considered to transmit the shared TTI sum of each bag in prior art shown in Figure 3 two and can not surpass 20 factor again, each bag adopts 10 TTI to bind transmission, and can carry out at most 1 re-transmission, and retransmit interval is 30 TTI.Like this, prior art two shown in Figure 3 is transmitted each shared maximized while of TTI number of bag having taken into account, and has also effectively avoided the collision problem of new bag and retransmission packet.

But the inventor is also noted that potential problems of prior art shown in Figure 3 two are: the diversity degree when each wraps in transmission is not high enough.On the principle of transmission diversity, the resource that takies is overstepping the bounds of propriety loose, and the effect of its diversity is better.Yet, in prior art two, because the TTI binding number that each VoIP bag adopts is long, therefore cause maximum retransmission very few, thereby bring diversity undesirable.

It is more than the problem that in prior art, the VoIP business exists aspect up covering.Next, illustrate that by Fig. 5 in prior art, data service is in the problem that exists aspect up covering.

Referring to Fig. 5, for data service, can directly adopt to be similar in LTE R8 for the TTI binding technology of VoIP business, wherein each bag can adopt 4 TTI to bind transmission, and retransmit interval is 16 TTI.

The inventor finds after deliberation, for the prior art three for data service shown in Figure 5, has following potential problems:

Adopt the waste that will bring resource with transmitting for the first time identical, fixing TTI binding length when (1) retransmitting.

When in LTE R8, VoIP being carried out the TTI binding, consider that the VoIP business is high to delay requirement, for transmission TTI as much as possible under the time delay restriction, adopt when therefore retransmitting with transmitting for the first time identical, fixing TTI binding length.Yet, for data service, because delay requirement is high less than VoIP, adopt fixing TTI binding length to retransmit underaction.For example, only need in some cases to retransmit 1-2 TTI base station and just can correctly receive, and if bind according to 4 fixing TTI and retransmit the serious waste that to bring on the re-transmission resource always.

(2) employing is determined method with the lower identical transmission block of non-TTI binding, will bring the loss of throughput.

Base station in LTE need to be according to the MCS(Modulation and Coding Scheme in signaling, Modulation and Coding Scheme) information and PRB(Physical Resource Block, Physical Resource Block) number is determined the transmission block size from transmission block size mapping table shown in Figure 6.But the hypotheses of searching transmission block size mapping table in LTE R8 when transfer of data is not adopt the TTI binding, and perhaps equivalence is fixed as 1 for the TTI number that takies.When reality adopts the TTI binding to carry out transfer of data, if also as tradition, suppose the TTI number that takies be fixed as 1 and only according to the number of PRB carry out the transmission block size really set must make the transmission block size that obtains less than normal, thereby bring the loss of system throughput performance.

(3) adopt high-order to be adjusted at the loss that brings performance under the TTI binding.

Traditional transfer of data is also supported the high order modulation such as 16QAM and 64QAM except adopting the QPSK mode.Yet the inventor finds, under the low SINR environment that adopts the TTI binding, if adopt high order modulation to have certain performance loss in conjunction with low rate coding.As shown in Figure 7, under identical transmission block size, adopt QPSK(" * " legend under TTI binding) modulation ratio 64QAM(" O " legend) performance is better.

Summary of the invention

The technical problem that the present invention will solve is to provide a kind of ascending transmission method, system and mobile terminal of TTI binding, can improve up coverage rate and avoid performance loss.

According to an aspect of the present invention, proposed the ascending transmission method that a kind of TTI binds, comprised that mobile terminal receives TTI binding parameter and the definite parameter of transmission block size that the base station sends, TTI binding parameter comprises whether carrying out the TTI binding transmission that the TTI number changes; If the TTI binding transmission that the TTI number changes is carried out in the indication of TTI binding parameter, read the transmission patterns corresponding with the type of the business of the current use of mobile terminal from mobile terminal this locality, in the transmission patterns that reads, the TTI number that comprises in the TTI binding of the TTI number that comprises in the TTI binding that retransmits less than transmission for the first time; According to the type of the business of the current use of mobile terminal, whether carry out the number of the TTI that comprises in TTI binding transmission that the TTI number changes, TTI binding and transmission block size and determine that parameter determines the transmission block size; According to the data of the transmission patterns that reads with the business of the current use of transmission block size transmission mobile terminal; Judge whether that according to the HARQ feedback that receives needs carry out data re-transmission, if need to carry out data re-transmission, again transmit the data of the business of the current use of mobile terminal according to the transmission patterns that reads and transmission block size.

According to a further aspect in the invention, a kind of ascending transmission method of TTI binding has also been proposed, comprise that mobile terminal receives TTI binding parameter and the definite parameter of transmission block size of base station transmission, TTI binding parameter comprises that whether carrying out the big or small TTI binding of adjusting of transmission block transmits; If the TTI binding transmission that the transmission block size is adjusted is carried out in the indication of TTI binding parameter, read the transmission patterns corresponding with the type of the business of the current use of mobile terminal from mobile terminal this locality; If the current business of using of mobile terminal is data service, determine that according to the number of the TTI that whether carries out comprising in TTI binding transmission that the transmission block size adjusts, TTI binding and transmission block size parameter determines the transmission block size; According to the data of the transmission patterns that reads with the business of the current use of transmission block size transmission mobile terminal; Judge whether that according to the HARQ feedback that receives needs carry out data re-transmission, if need to carry out data re-transmission, again transmit the data of the business of the current use of mobile terminal according to the transmission patterns that reads and transmission block size.

According to another aspect of the invention, a kind of mobile terminal has also been proposed, comprise the first parameter receiving element, the TTI binding parameter and the transmission block size that are used for reception base station transmission are determined parameter, and TTI binds parameter and comprises the TTI binding transmission of whether carrying out the variation of TTI number; The first transmission patterns determining unit, carry out if be used for the indication of TTI binding parameter the TTI binding transmission that the TTI number changes, read the transmission patterns corresponding with the type of the business of the current use of mobile terminal from mobile terminal this locality, in the transmission patterns that reads, the TTI number that comprises in the TTI binding of the TTI number that comprises in the TTI binding that retransmits less than transmission for the first time; The big or small determining unit of the first transmission block is used for the type according to the business of the current use of mobile terminal, the number that the TTI binding is transmitted, TTI binds the TTI that comprises of whether carrying out the variation of TTI number and the definite parameter of transmission block size and determines to transmit block size; Data transmission unit, according to the data of the transmission patterns that reads with the business of the current use of transmission block size transmission mobile terminal, judge whether that according to the HARQ feedback that receives needs carry out data re-transmission, if need to carry out data re-transmission, again transmit the data of the business of the current use of mobile terminal according to the transmission patterns that reads and transmission block size.

In accordance with a further aspect of the present invention, a kind of mobile terminal has also been proposed, comprise the second parameter receiving element, the TTI binding parameter and the transmission block size that are used for reception base station transmission are determined parameter, and TTI binds parameter and comprises the TTI binding transmission of whether carrying out the variation of TTI number; The second transmission patterns determining unit carries out if be used for the indication of TTI binding parameter the TTI binding transmission that the TTI number changes, and reads the transmission patterns corresponding with the type of the business of the current use of mobile terminal from mobile terminal this locality; The second transmission block size determining unit, be data service if be used for the current business of using of mobile terminal, determine that according to the number of the TTI that whether carries out comprising in TTI binding transmission that the TTI number changes, TTI binding and transmission block size parameter determines the transmission block size; Data transmission unit, be used for the data according to the business of the transmission patterns that reads and the current use of transmission block size transmission mobile terminal, judge whether that according to the HARQ feedback that receives needs carry out data re-transmission, if need to carry out data re-transmission, again transmit the data of the business of the current use of mobile terminal according to the transmission patterns that reads and transmission block size.

In accordance with a further aspect of the present invention, also proposed a kind of uplink system of TTI binding, comprised base station and aforesaid mobile terminal, wherein, the base station sends determined TTI binding parameter and the definite parameter of transmission block size to mobile terminal.

Ascending transmission method, system and the mobile terminal of TTI provided by the invention binding have been considered when the data business is transmitted the TTI number that comprises in the TTI binding therefore can effectively prevent the loss of throughput.In addition, the application has not only taken into account the maximization of transmitting the shared TTI number of each bag, increase due to number of retransmissions has simultaneously also significantly improved diversity, therefore, can effectively improve the bad problem of up coverage effect because frequency increases and/or the site distance increase causes.

Description of drawings

Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part.In the accompanying drawings:

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 exists.

Fig. 5 is prior art three (data service) schematic diagram.

Fig. 6 is transmission block size mapping schematic diagram.

Fig. 7 is that the Performance Ratio of different modulating progression is than schematic diagram.

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

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

Figure 10 shows the schematic diagram that the present invention has avoided 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 of the present invention binding.

Figure 14 is the new transmission block size mapping relations schematic diagram that the present invention creates.

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

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

Figure 17 is the structural representation of an 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 an embodiment of the uplink system of TTI of the present invention binding.

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

Embodiment

With reference to the accompanying drawings the present invention is described more fully, exemplary embodiment of the present invention wherein is described.Exemplary embodiment of the present invention and explanation thereof are used for explaining the present invention, but do not consist of improper restriction of the present invention.

Below be illustrative to the description only actually of at least one exemplary embodiment, never as any restriction to the present invention and application or use.

As previously mentioned, introduced the TTI binding technology in LTE R8, to improve the edges cover ability of VoIP business.But if adopt higher carrier frequency and/or larger site distance in actual arranging net, even adopt the TTI binding technology of LTE R8, its up covering still is apparent not enough.

Following embodiment of the present invention is for the limited problem of the present LTE up covering of system's small area edge customer, and the TTI binding transmission technology that has proposed a kind of enhancing based on LTE R8 is with the up covering performance of further raising LTE system.Next, will tell about in detail by instantiation the TTI binding technology of this enhancing.

As shown in Figure 8, this embodiment can comprise the following steps:

S802, mobile terminal receive TTI binding parameter and the definite parameter of transmission block size that the base station sends, and wherein, TTI binding parameter comprises whether carrying out the TTI binding transmission that the TTI number changes, that is, whether adopt the TTI binding technology of enhancing of the present invention;

Alternatively, may there be multiple transmission patterns in the business of the current use of mobile terminal, therefore, TTI binding parameter can also comprise the transmission patterns sign corresponding with the type of the business of the current use of mobile terminal, the flexibility of selecting with further increase transmission patterns.

S804, mobile terminal reads TTI binding parameter, if the TTI binding transmission that the TTI number changes is carried out in the indication of TTI binding parameter, read the transmission patterns corresponding with the type of the business of the current use of mobile terminal from mobile terminal this locality, wherein, transmission patterns refers to bind in each Transmission Time Interval in the propagation delay time scope TTI number of transmission, in determined transmission patterns, the TTI number that comprises in the TTI binding of the TTI number that comprises in the TTI binding that retransmits less than transmission for the first time, the type of the current business of using of mobile terminal can be VoIP business or data service,

Alternatively, if comprise the transmission patterns sign in the TTI that mobile terminal receives binding parameter, determine the transmission patterns corresponding with the transmission patterns sign that receives according to the transmission patterns sign of storage with the corresponding relation of transmission patterns.

S806 is according to the type of the business of the current use of mobile terminal, whether carry out the number of the TTI that comprises in TTI binding transmission that the TTI number changes, TTI binding and transmission block size and determine that parameter determines the transmission block size;

Take the VoIP business as example, if determine that mobile terminal carries out the TTI binding transmission that the TTI number changes, and determines the transmission block size according to MCS index and PRB number; Take data service as example, if determine that mobile terminal carries out the TTI binding transmission that the TTI number changes, and determines the transmission block size according to the number of the TTI that comprises in MCS index, PRB number and TTI binding.

S808 is according to the data of the transmission patterns that reads with the business of the current use of transmission block size transmission mobile terminal.

S810 judges whether that according to the HARQ feedback that receives needs carry out data re-transmission, if need to carry out data re-transmission, again transmits the data of the business of the current use of mobile terminal according to the transmission patterns that reads and transmission block size.

In this embodiment, due to the TTI number that comprises in the TTI binding of the TTI number that comprises in the TTI binding that retransmits less than transmission for the first time, on the one hand, compare with the mode that adopts fixing TTI number to carry out data re-transmission in LTE R8, significantly saved system resource; On the other hand, for data service, due to the impact of the TTI number of having considered to comprise in the TTI binding on the transmission block size, therefore also can effectively prevent the loss of throughput.In addition, this embodiment has not only taken into account the maximization of transmitting the shared TTI number of each bag, increase due to number of retransmissions has simultaneously also significantly improved diversity, therefore, can effectively improve the bad problem of up coverage effect because frequency increases and/or the site distance increase causes.

Alternatively, before step S802, TTI binding parameter can be determined according to the type of the business of the uplink wireless channel quality of measuring and the current use of mobile terminal in the base station, and determine the definite parameter of transmission block size according to the uplink wireless channel quality of measuring, wherein, the transmission block size determines that parameter can be included as MCS index and the PRB number of the traffic assignments of the current use of user.

Particularly, in an example, the base station can compare the uplink wireless channel quality of measuring with the setting channel quality thresholds; If lower than setting channel quality thresholds, determine to carry out the TTI binding transmission that the TTI number changes, otherwise, do not carry out TTI binding transmission; Wherein, the size of setting channel quality thresholds is relevant to the type of the business of the current use of mobile terminal.

In another example, the base station can compare the uplink wireless channel quality of measuring respectively with the first channel quality thresholds and second channel quality threshold; If lower than the first channel quality thresholds, determine to carry out the TTI binding transmission that the TTI number changes, if higher than the second channel quality threshold, do not carry out TTI binding transmission, otherwise, carry out the fixing TTI binding transmission of TTI number; Wherein, the first channel quality thresholds is lower than the second channel quality threshold, and the size of the first channel quality thresholds and second channel quality threshold is relevant to the type of the business of the current use of mobile terminal.

Can find out from above-mentioned two examples,, user relatively poor at channel condition is positioned at cell edge or causes under the scenes such as path loss is larger because tranmitting frequency is higher, can improve the bad problem of up covering performance that causes due to above-mentioned situation by the TTI binding transmission means that TTI number of the present invention changes.

It is pointed out that the TTI binding transmission method that TTI number of the present invention changes is not limited to the relatively poor scene of uplink signal-channel quality, same, it can also be applied to channel quality scene preferably.

Take the VoIP business as example, if the TTI binding transmission method that need to carry out the variation of TTI number is judged in the base station, the TTI number that adopts when at every turn again transmitting is equal, but all less than binding for the first time the TTI number that adopts when transmitting.

As shown in Figure 9, in certain transmission patterns, in first Transmission Time Interval (namely, from 15 subframes of the 0th subframe to the), the TTI number that comprises in the TTI of transmission binding for the first time is 8, in each follow-up Transmission Time Interval, the TTI number that again comprises in each TTI binding of transmission be 4.In the time delay scope of 52 TTI, each bag can carry out at most 4 transmission (wherein, comprise 3 re-transmissions), increase due to the number of transmissions, significantly improved the effect of diversity, and each bag can take at most 8+3*4=20 TTI, equal to transmit the shared maximum TTI number of each bag, avoided on the one hand the resource contention of new bag and retransmission packet, as shown in figure 10, also maximize on the other hand each and wrapped the energy that accumulates, improved the received energy of upward signal, improve up detection performance, and then solved the poor problem of up covering.

Take data service as example, if judging, the base station need to carry out the TTI binding transmission method that the TTI number changes, along with the increase to same bag data transmission times, the TTI number that comprises in the TTI binding reduces gradually, as shown in figure 11, wherein, the TTI number relation that comprises in each TTI binding can be n0 〉=n1=n2=n3 ..., n0=n1=n2 n3 ..., n0=n1 n2 n3, or n0〉n1〉n2〉n3 ... Deng.

As shown in figure 12, in Figure 11, n0 is that 8, n1 is that 6, n2 is that 4, n3 is 2.As can be seen from Figure 12, because data service is lower than the requirement of VoIP service delay, therefore, for saving resource, again transmits the TTI number that relative last time, transmission was bound at every turn and tail off.In addition, because the increase of the number of transmissions has also improved diversity, also improved up overlay area when saving Internet resources.

Referring to Fig. 7, can make performance that certain loss is arranged owing to adopting high order modulation to combine with low rate coding again, therefore, when uplink signal-channel quality was relatively poor, the modulation system that the MCS index is corresponding can be QPSK.

As shown in figure 13, this embodiment can comprise the following steps:

S1302, eNB determines whether to use the TTI binding transmission method of TTI number variation of the present invention according to the uplink wireless channel quality, and determine the transmission patterns sign according to the type of the business of uplink wireless channel quality and the current use of mobile terminal, whether eNB can will carry out TTI binding transmission that the TTI number changes and transmission patterns sign notice to mobile terminal by high-level signaling.

Particularly, a certain channel quality thresholds can be set, when the uplink signal-channel quality of base station measurement during lower than this channel quality thresholds, the TTI binding transmission method that adopts the TTI number to change, otherwise do not carry out TTI binding transmission; Perhaps, two channel quality thresholds can also be set, when measured channel quality lower than low threshold (namely, the first channel quality thresholds) time, the TTI binding transmission method that adopts the TTI number to change does not carry out TTI binding transmission during higher than high threshold (that is, second channel quality threshold), adopt TTI binding transmission method traditional in LTE R8 (, the TTI binding transmission that the TTI number is fixing) in the time of between low threshold and high threshold.For example, can adopt the decision method of following table 1:

Table 1

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

S1304, mobile terminal learns according to the information of eNB notice TTI binding transmission technology and the transmission patterns sign whether whether this terminal adopts the TTI number to change on up direction.If the TTI binding transmission technology that adopts the TTI number to change is inquired about corresponding transmission patterns according to the transmission patterns sign, and is realized the transmission of data based on this transmission patterns.

Specifically, if the current use of user terminal is the VoIP business, mobile terminal can transmit and retransmit according to TTI binding pattern shown in Figure 9, it is to be noted, for the VoIP business, its transmission patterns is not limited to type shown in Figure 9, and the transmission patterns sign that sends according to the base station can find out the transmission patterns corresponding with this sign in mobile terminal.Wherein, each wraps in and adopts 8 TTI bindings when transmitting for the first time, adopts 4 TTI bindings during re-transmission, and retransmit interval is 16 TTI.Suppose that each TTI is 1ms, in the time delay scope of 52ms, each bag can carry out at most 4 transmission.

If the current use of user terminal is data service, mobile terminal can transmit and retransmit according to TTI binding pattern shown in Figure 11, and its maximum characteristics are that each wraps in when retransmitting, along with the increase of number of retransmissions, in the TTI binding, the number of TTI reduces gradually.Suppose as shown in figure 11, during when transmitting, TTI binds at every turn, the number of TTI is n0 successively, n1, and n2 ..., n0 is arranged so 〉=n1 〉=n2 ...Particularly, can adopt TTI binding pattern shown in Figure 12.

It is pointed out that transmission patterns shown in Figure 9 is a special case of transmission patterns shown in Figure 11.

S1306, user determine the transmission block size, and transmit according to the transmission patterns that step S1304 determines.

About determining of transmission block size, if VoIP business, although the TTI binding transmission method that adopts TTI number of the present invention to change, but because VoIP adopts constant transmission rate, the MCS index that therefore still sends according to the base station according to the conventional method and PRB number are directly searched in Fig. 6 transmission block size mapping table and are got final product.Wherein, can be corresponding TBS(Transport Block Size with the MCS index-mapping by following table 2, the transmission block size) index:

Table 2

When the presently used business of mobile terminal is data service and when adopting the TTI binding transmission method that TTI number of the present invention changes, if transmission block size mapping table shown in Figure 6 is not revised, namely, being equal to based on the TTI number is to carry out determining of transmission block size under 1 hypothesis, will certainly make the transmission block size that obtains less than normal, thereby bring systemic loss of energy.

Therefore, in the usage data business and when adopting the TTI binding transmission method that TTI number of the present invention changes, if also inquire about based on transmission block size mapping table shown in Figure 6, not only need to consider MCS index and PRB number, also to consider simultaneously the TTI number that comprises in each binding.

Particularly, can use the transmission block size mapping table identical with the VoIP business to search, but the TTI number that needs to comprise in PRB number and each binding multiplies each other as new PRB number, more jointly determines the transmission block size as querying condition with the TBS index that the MCS index-mapping goes out; Can also create a new transmission block size mapping table, new Table A as shown in figure 14, PRB number N wherein _PRBThe content of corresponding row is PRB number N in the former table in left side _PRBThe content of the row corresponding with the product of the TTI number that comprises in each binding.For example, the PRB number in the new Table A in the right is that the content of 4 corresponding row is that in the former table in the left side, the PRB number is 16(4x4) content of corresponding row, suppose that here the TTI number that comprises in the TTI binding is 4.

Can find out from transmission block size mapping table shown in Figure 14, in the situation that the non-constant of uplink signal-channel quality still transmits more transmission block, may cause BLER higher, consider this problem, the inventor revises new Table A shown in Figure 14, middle table as shown in figure 15.In the new Table A that creates, insert foremost some than current less transmission block magnitude numerical value in each row, this numerical value can derive from former table in the corresponding row of certain PRB numerical value foremost, for example, the content that is 4 corresponding row with PRB in the new Table A that creates in Figure 14 moves down, then with 6 values { 88 minimum in the row that in former table, identical PRB is corresponding, 144,176,208,256,328} is inserted into wherein, to guarantee in the situation that the non-constant of uplink signal-channel quality also can correctly transmit low volume data.

Can adopt following method when specific implementation:

(1) only configure transmission block size mapping table shown in Figure 6 in base station and mobile terminal, at this moment, for data service, need to inquire about according to the number of the TTI that comprises in MCS index, PRB number and TTI binding;

(2) configuration new Table A shown in Figure 14 in base station and mobile terminal, at this moment, for data service, can inquire about according to MCS index and PRB number;

(3) configure the revision table of centre shown in Figure 15 in base station and mobile terminal, at this moment, for data service, can inquire about according to MCS index and PRB number.

Obviously, due to the third collocation method in the situation that the non-constant of uplink signal-channel quality also can correctly transmit the small part data, therefore in the situation that uplink signal-channel quality is relatively poor be better than before two kinds of methods.

As shown in figure 16, this embodiment can comprise the following steps:

S1602, mobile terminal receives TTI binding parameter and the definite parameter of transmission block size that the base station sends, TTI binding parameter comprises whether carrying out the TTI binding transmission that the transmission block size is adjusted, namely, the TTI number that comprises consider each TTI binding when calculating transmission block size in, wherein, the transmission block size determines that parameter is included as MCS index and the PRB number of the traffic assignments of the current use of user, in order not reduce the performance of low rate coding mode, modulation system corresponding to suggestion MCS index is QPSK.

S1604 if the TTI binding transmission that the transmission block size is adjusted is carried out in the indication of TTI binding parameter, reads the transmission patterns corresponding with the type of the business of the current use of mobile terminal from mobile terminal this locality.

S1606 if the current business of using of mobile terminal is data service, determines that according to the number of the TTI that whether carries out comprising in TTI binding transmission that the transmission block size adjusts, TTI binding and transmission block size parameter determines the transmission block size;

For example, if determine that upstream data service carries out the TTI binding transmission that the transmission block size is adjusted, the transmission block size of the number specified data business of the TTI that comprises in can binding according to MCS index, PRB number and TTI, particularly, the transmission block of data service size computational methods can with reference in abovementioned steps S1306 to definite method of data business transmission block size, namely

Only configure transmission block size mapping table shown in Figure 6 in base station and mobile terminal, need to obtain according to the number inquiry of the TTI that comprises in MCS index, PRB number and TTI binding the transmission block size of data service; Configuration new Table A shown in Figure 14 in base station and mobile terminal can be according to the transmission block size of MCS index and PRB number inquiry acquisition data service; Configure the revision table of centre shown in Figure 15 in base station and mobile terminal, can be according to the transmission block size of MCS index and PRB number data query business.

S1608, according to the data of the transmission patterns that reads with the business of the current use of transmission block size transmission mobile terminal, judge whether that according to the HARQ feedback that receives needs carry out data re-transmission, if need to carry out data re-transmission, again transmit the data of the business of the current use of mobile terminal according to the transmission patterns that reads and transmission block size.

In this embodiment, although the transmission patterns of data service is same as the prior art,, number due to the TTI that has considered to comprise in the TTI binding when calculating the transmission block size, therefore, avoid transmission block size problem less than normal, effectively guaranteed the throughput performance of system.

Similar with the embodiment in Fig. 8, before step S1602, TTI binding parameter is determined according to the type of the business of the uplink wireless channel quality of measuring and the current use of mobile terminal in the base station; Determine the definite parameter of transmission block size according to the uplink wireless channel quality of measuring.

Particularly, in an example, the uplink wireless channel quality of measuring can be compared with the setting channel quality thresholds; If lower than setting channel quality thresholds, determine to carry out the TTI binding transmission that the transmission block size is adjusted, otherwise, do not carry out TTI binding transmission.

In another example, the uplink wireless channel quality of measuring can be compared with the first channel quality thresholds and second channel quality threshold respectively; If lower than the first channel quality thresholds, determine to carry out the TTI binding transmission that the transmission block size is adjusted, if higher than the second channel quality threshold, do not carry out TTI binding transmission, otherwise, be fixed the TTI binding transmission (that is, the traditional TTI binding transmission method in LTE R8, the TTI binding transmission method fixing with aforesaid TTI number is identical) of transmission block size; Wherein, the first channel quality thresholds is lower than the second channel quality threshold.

One of ordinary skill in the art will appreciate that, realize that the whole and part steps of said method embodiment can complete by the relevant hardware of program command, aforesaid program can be stored in a computing equipment read/write memory medium, this program is when carrying out, execution comprises the step of said method embodiment, and aforesaid storage medium can comprise the various media that can be program code stored such as ROM, RAM, magnetic disc and CD.

As shown in figure 17, the mobile terminal 1700 of this embodiment can comprise the first parameter receiving element 1702, the first transmission patterns determining unit 1704, the first transmission block size determining unit 1706 and data transmission unit 1708.

Wherein, the first parameter receiving element 1702 receives TTI binding parameter and the definite parameter of transmission block size that the base station sends, TTI binding parameter comprises whether carrying out the TTI binding transmission that the TTI number changes, the transmission block size determines that parameter is included as MCS index and the PRB number of the traffic assignments of the current use of user, in order to improve the performance of low rate coding mode, the modulation system that the MCS index is corresponding can be QPSK; If the TTI binding transmission that the TTI number changes is carried out in the indication of TTI binding parameter, the first transmission patterns determining unit 1704 reads the transmission patterns corresponding with the type of the business of the current use of mobile terminal from mobile terminal this locality, in the transmission patterns that reads, the TTI number that comprises in the TTI binding of the TTI number that comprises in the TTI binding that retransmits less than transmission for the first time; The first transmission block size determining unit 1706 is determined the transmission block size according to number and the definite parameter of transmission block size of the TTI that comprises in the type of the business of the current use of mobile terminal, the TTI binding transmission of whether carrying out the variation of TTI number, TTI binding; Data transmission unit 1708 is according to the data of the business of the transmission patterns that reads and the current use of transmission block size transmission mobile terminal, judge whether that according to the HARQ feedback that receives needs carry out data re-transmission, if need to carry out data re-transmission, again transmit the data of the business of the current use of mobile terminal according to the transmission patterns that reads and transmission block size.

Wherein, the type of the current business of using of mobile terminal is VoIP business or data service.

Alternatively, TTI binding parameter can also comprise the transmission patterns sign corresponding with the type of the business of the current use of mobile terminal, and the first transmission patterns determining unit is in the situation that the TTI binding parameter that mobile terminal receives comprises that the transmission patterns sign corresponding with the type of the business of the current use of mobile terminal reads the transmission patterns corresponding with the transmission patterns sign.

In the situation that the current business of using of mobile terminal is as the VoIP business and determine to carry out the TTI binding transmission that the TTI number changes, the TTI number that adopts when data transmission unit retransmits at every turn equates; In the situation that the current business of using of mobile terminal is as data service and determine to carry out the TTI binding transmission that the TTI number changes, along with the increase of data transmission unit to same bag data transmission times, the TTI number that comprises in the TTI binding reduces gradually.

As shown in figure 18, compare with the embodiment in Figure 17, the first transmission block size determining unit 1802 in the mobile terminal 1800 of this embodiment can comprise that type of service judgment sub-unit 1802a, VoIP business transmission block size determine that subelement 1802b and data traffic transmission block size determine subelement 1802c.

Wherein, the type of the business of the current use of type of service judgment sub-unit 1802a judgement mobile terminal; In the situation that the current business of using of mobile terminal is as the VoIP business and carry out the TTI binding transmission that the TTI number changes, VoIP business transmission block size determines that subelement 1802b determines the transmission block size according to MCS index and PRB number; In the situation that the current business of using of mobile terminal is as data service and carry out the TTI binding transmission that the TTI number changes, the data traffic transmission block size determines that subelement 1802c determines the transmission block size according to the number of the TTI that comprises in MCS index, PRB number and TTI binding.

As shown in figure 19, the mobile terminal 1900 of this embodiment can comprise the second parameter receiving element 1902, the second transmission patterns determining unit 1904, the second transmission block size determining unit 1906 and data transmission unit 1908.

Wherein, the second parameter receiving element 1902 receives TTI binding parameter and the definite parameter of transmission block size that the base station sends, TTI binding parameter comprises whether carrying out the TTI binding transmission that the transmission block size is adjusted, the transmission block size determines that parameter is included as MCS index and the PRB number of the traffic assignments of the current use of user, and the modulation system that this MCS index is corresponding is QPSK; If the TTI binding transmission that the transmission block size is adjusted is carried out in the indication of TTI binding parameter, the second transmission patterns determining unit 1904 reads the transmission patterns corresponding with the type of the business of the current use of mobile terminal from mobile terminal this locality; If the current business of using of mobile terminal is data service, the second transmission block size determining unit 1906 determines that according to the number of the TTI that whether carries out comprising in TTI binding transmission that the transmission block size adjusts, TTI binding and transmission block size parameter determines the transmission block size; Data transmission unit 1908 is according to the data of the business of the transmission patterns that reads and the current use of transmission block size transmission mobile terminal, judge whether that according to the HARQ feedback that receives needs carry out data re-transmission, if need to carry out data re-transmission, again transmit the data of the business of the current use of mobile terminal according to the transmission patterns that reads and transmission block size.

As shown in figure 20, the system 2000 of this embodiment can comprise base station 2002 and mobile terminal 2004, wherein, mobile terminal 2004 can adopt Figure 17, Figure 18 or mode shown in Figure 19 to realize, base station 2002 sends determined TTI binding parameter and the definite parameter of transmission block size to mobile terminal 2004.

As shown in figure 21, compare with embodiment in Figure 20, the base station 2102 in the system 2100 in this embodiment can comprise that TTI binding parameter determining unit 2102a and transmission block size determine parameter determining unit 2102b.

Wherein, TTI binding parameter determining unit 2102a determines TTI binding parameter according to the type of the business of the uplink wireless channel quality of measuring and the current use of mobile terminal; The transmission block size determines that parameter determining unit 2102b determines the definite parameter of transmission block size according to the uplink wireless channel quality of measuring.

When mobile terminal adopts Figure 17 or mode shown in Figure 180 to realize:

In an example, TTI binding parameter determining unit 2102a can comprise that the first channel quality comparison subelement and the first transmission means determine subelement, wherein, the first channel quality comparison subelement compares the uplink wireless channel quality of measuring with the setting channel quality thresholds; If lower than setting channel quality thresholds, the first transmission means determines that subelement determines to carry out the TTI binding transmission that the TTI number changes, otherwise, do not carry out TTI binding transmission, wherein, the size of setting channel quality thresholds is relevant to the type of the business of the current use of mobile terminal.

In another example, TTI binding parameter determining unit 2102a can comprise that the second channel mass ratio determines subelement than subelement and the second transmission means, wherein, the second channel mass ratio compares the uplink wireless channel quality of measuring respectively than subelement with the first channel quality thresholds and second channel quality threshold; If lower than the first channel quality thresholds, the second transmission means determines that subelement determines to carry out the TTI binding transmission that the TTI number changes, if higher than the second channel quality threshold, do not carry out TTI binding transmission, otherwise, carry out the fixing TTI binding transmission of TTI number, wherein, the first channel quality thresholds is lower than the second channel quality threshold, and the size of the first channel quality thresholds and second channel quality threshold is relevant to the type of the business of the current use of mobile terminal.

When mobile terminal adopts mode shown in Figure 19 to realize:

In an example, TTI binding parameter determining unit 2102a can comprise that the first channel quality comparison subelement and the first transmission means determine subelement, wherein, the first channel quality comparison subelement compares the uplink wireless channel quality of measuring with the setting channel quality thresholds; If lower than setting channel quality thresholds, the first transmission means determines that subelement determines to carry out the TTI binding transmission that the transmission block size is adjusted, otherwise, do not carry out TTI binding transmission.

In another example, TTI binding parameter determining unit 2102a can comprise that the second channel mass ratio determines subelement than subelement and the second transmission means, wherein, the second channel mass ratio compares the uplink wireless channel quality of measuring respectively than subelement with the first channel quality thresholds and second channel quality threshold; If lower than the first channel quality thresholds, the second transmission means determines that subelement determines to carry out the TTI binding transmission that the transmission block size is adjusted, if higher than the second channel quality threshold, do not carry out TTI binding transmission, otherwise, be fixed the TTI binding transmission of transmission block size, wherein, the first channel quality thresholds is lower than the second channel quality threshold.

In this specification, each embodiment all adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that part identical with similar between each embodiment can cross-references.For device embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, relevant part can be referring to the explanation of embodiment of the method part.

The above embodiment of the present invention strengthens and improves the existing TTI binding technology of LTE, and then has strengthened up covering power, is embodied in the following aspects:

(1) improved the TTI binding transmission diversity effect of VoIP business, avoided simultaneously resource contention, thereby improved performance.

Transmission shown in Fig. 9 and re-transmission TTI binding method for designing have satisfied transmits the shared TTI number maximization of each bag, that is, 20 TTI, thus reach maximum energy accumulation effect.Further, compare with prior art one shown in Figure 2, the invention solves the resource conflict problem of Xin Bao and retransmission packet, as shown in figure 10.In addition, compare with the prior art two shown in figure three, the maximum retransmission of each bag is increased to 3 times by 1 time, thereby has effectively improved the diversity of transmission.

(2) reduced the re-transmission wasting of resources under data service TTI binding transmission.

Compare with the TTI binding transmission method that traditional TTI number is fixing, in transmission patterns shown in Figure 11, each wraps in when retransmitting, and along with the increase of number of retransmissions, reduces gradually shared TTI number in the TTI binding.The method can effectively reduce the wasting of resources that fixed number TTI binding brings, thereby improves the retransmission performance of data service.

(3) improve the precision that the lower transmission block size of data service TTI binding transmission is determined, and then improved handling up and covering of system.

When the TTI binding transmission means that adopts the TTI number to change or the big or small TTI binding transmission means of adjusting of transmission block, if original transmission block size mapping table is not revised, namely, being equal to based on the TTI number is to carry out determining of transmission block size under 1 hypothesis, will certainly make the transmission block size that obtains less than normal, thereby bring systemic loss of energy.The above embodiment of the present invention is by revising the precision of determining with further raising transmission block size to the transmission block mapping table, thereby improves the throughput of system.Further, due to the above embodiment of the present invention in the situation that the non-constant of uplink signal-channel quality still can transmit low volume data, thereby further strengthened the covering of system.

(4) data service being restricted to fixing QPSK modulation when the TTI binding is transmitted can obtain than the better performance of high order modulation.

Although by example, specific embodiments more of the present invention are had been described in detail, it should be appreciated by those skilled in the art, above example is only in order to describe, rather than in order to limit the scope of the invention.It should be appreciated by those skilled in the art, can in the situation that do not depart from the scope of the present invention and spirit, above embodiment be modified.Scope of the present invention is limited by claims.

Claims

1. the ascending transmission method of a TTI binding, is characterized in that, comprising:

Mobile terminal receives TTI binding parameter and the definite parameter of transmission block size that the base station sends, and described TTI binding parameter comprises whether carrying out the TTI binding transmission that the TTI number changes;

If the TTI binding transmission that the TTI number changes is carried out in the indication of described TTI binding parameter, read the transmission patterns corresponding with the type of the business of the current use of mobile terminal from described mobile terminal this locality, in the transmission patterns that reads, the TTI number that comprises in the TTI binding of the TTI number that comprises in the TTI binding that retransmits less than transmission for the first time;

According to the type of the business of the current use of described mobile terminal, whether carry out the number of the TTI that comprises in TTI binding transmission that the TTI number changes, TTI binding and described transmission block size and determine that parameter determines the transmission block size;

According to the data of the transmission patterns that reads with the business of the current use of the transmission block size described mobile terminal of transmission;

Judge whether that according to the HARQ feedback that receives needs carry out data re-transmission, if need to carry out data re-transmission, again transmit the data of the business of the current use of described mobile terminal according to the transmission patterns that reads and transmission block size.

2. the ascending transmission method of TTI binding according to claim 1, is characterized in that, described method also comprises:

TTI binding parameter is determined according to the type of the business of the uplink wireless channel quality of measuring and the current use of described mobile terminal in described base station;

The definite parameter of transmission block size is determined according to the uplink wireless channel quality of measuring in described base station.

3. the ascending transmission method of TTI binding according to claim 2, is characterized in that, described base station determines that according to the type of the business of the uplink wireless channel quality of measuring and the current use of described mobile terminal the step of TTI binding parameter comprises:

The uplink wireless channel quality of measuring is compared with the setting channel quality thresholds;

If lower than described setting channel quality thresholds, determine to carry out the TTI binding transmission that the TTI number changes, otherwise, do not carry out TTI binding transmission;

Wherein, the size of described setting channel quality thresholds is relevant to the type of the business of the current use of described mobile terminal.

4. the ascending transmission method of TTI binding according to claim 2, is characterized in that, described base station determines that according to the type of the business of the uplink wireless channel quality of measuring and the current use of described mobile terminal the step of TTI binding parameter comprises:

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

If lower than described the first channel quality thresholds, determine to carry out the TTI binding transmission that the TTI number changes, if higher than described second channel quality threshold, do not carry out TTI binding transmission, otherwise, carry out the fixing TTI binding transmission of TTI number;

Wherein, described the first channel quality thresholds is lower than described second channel quality threshold, and the size of described the first channel quality thresholds and described second channel quality threshold is relevant to the type of the business of the current use of described mobile terminal.

5. the ascending transmission method of TTI binding according to claim 1, is characterized in that, the type of the current business of using of described mobile terminal is VoIP business or data service.

6. the ascending transmission method of TTI according to claim 5 binding, it is characterized in that, in the situation that the current business of using of described mobile terminal is as the VoIP business and determine to carry out the TTI binding transmission that the TTI number changes, the TTI number that adopts when at every turn retransmitting equates.

7. the ascending transmission method of TTI according to claim 5 binding, it is characterized in that, in the situation that the current business of using of described mobile terminal is as data service and determine to carry out the TTI binding transmission that the TTI number changes, along with the increase to same bag data transmission times, the TTI number that comprises in the TTI binding reduces gradually.

8. the ascending transmission method of TTI binding according to claim 5, is characterized in that, described transmission block size determines that parameter is included as MCS index and the PRB number of the traffic assignments of the current use of described user.

9. the ascending transmission method of TTI binding according to claim 8, is characterized in that, the modulation system that described MCS index is corresponding is QPSK.

10. the ascending transmission method of TTI according to claim 8 binding, it is characterized in that, according to the type of the business of the current use of described mobile terminal, whether carry out the number of the TTI that comprises in TTI binding transmission that the TTI number changes, TTI binding and described transmission block size and determine that parameter determines that the step of transmission block size comprises:

In the situation that the current business of using of described mobile terminal as the VoIP business and carry out the TTI binding transmission that the TTI number changes, is determined described transmission block size according to described MCS index and described PRB number;

In the situation that the current business of using of described mobile terminal as data service and carry out the TTI binding transmission that the TTI number changes, is determined described transmission block size according to the number of the TTI that comprises in described MCS index, described PRB number and TTI binding.

11. the ascending transmission method of TTI according to claim 1 binding is characterized in that, described TTI binding parameter also comprises the transmission patterns sign corresponding with the type of the business of the current use of mobile terminal, and described method also comprises:

In the situation that the TTI that described mobile terminal receives binding parameter comprises the transmission patterns sign corresponding with the type of the business of the current use of mobile terminal, described mobile terminal reads the transmission patterns corresponding with described transmission patterns sign.

12. the ascending transmission method of a TTI binding is characterized in that, comprising:

Mobile terminal receives TTI binding parameter and the transmission block size of base station transmission and determines parameter, and described TTI binding parameter comprises whether carrying out the big or small TTI binding transmission of adjusting of transmission block;

If the TTI binding transmission that the transmission block size is adjusted is carried out in the indication of described TTI binding parameter, read the transmission patterns corresponding with the type of the business of the current use of mobile terminal from described mobile terminal this locality;

If the current business of using of described mobile terminal is data service, determine that according to the number of the TTI that whether carries out comprising in TTI binding transmission that the transmission block size adjusts, TTI binding and described transmission block size parameter determines the transmission block size;

13. the ascending transmission method of TTI binding according to claim 12 is characterized in that, described method also comprises:

14. the ascending transmission method of TTI binding according to claim 13 is characterized in that, described base station determines that according to the type of the business of the uplink wireless channel quality of measuring and the current use of described mobile terminal the step of TTI binding parameter comprises:

If lower than described setting channel quality thresholds, determine to carry out the TTI binding transmission that the transmission block size is adjusted, otherwise, do not carry out TTI binding transmission.

15. the ascending transmission method of TTI binding according to claim 13 is characterized in that, described base station determines that according to the type of the business of the uplink wireless channel quality of measuring and the current use of described mobile terminal the step of TTI binding parameter comprises:

If lower than described the first channel quality thresholds, determine to carry out the TTI binding transmission that the transmission block size is adjusted, if higher than described second channel quality threshold, do not carry out TTI binding transmission, otherwise, be fixed the TTI binding transmission of transmission block size;

Wherein, described the first channel quality thresholds is lower than described second channel quality threshold.

16. the ascending transmission method of TTI binding according to claim 12 is characterized in that, described transmission block size determines that parameter is included as MCS index and the PRB number of the traffic assignments of the current use of described user.

17. the ascending transmission method of TTI binding according to claim 16 is characterized in that the modulation system that described MCS index is corresponding is QPSK.

18. a mobile terminal is characterized in that, comprising:

The first parameter receiving element, the TTI binding parameter and the transmission block size that are used for reception base station transmission are determined parameter, described TTI binds parameter and comprises the TTI binding transmission of whether carrying out the variation of TTI number;

The first transmission patterns determining unit, carry out if be used for the indication of described TTI binding parameter the TTI binding transmission that the TTI number changes, read the transmission patterns corresponding with the type of the business of the current use of mobile terminal from described mobile terminal this locality, in the transmission patterns that reads, the TTI number that comprises in the TTI binding of the TTI number that comprises in the TTI binding that retransmits less than transmission for the first time;

The big or small determining unit of the first transmission block is used for the type according to the business of the current use of described mobile terminal, the number that the TTI binding is transmitted, TTI binds the TTI that comprises of whether carrying out the variation of TTI number and the definite parameter of described transmission block size and determines to transmit block size;

Data transmission unit, be used for the data according to the business of the transmission patterns that reads and the current use of the transmission block size described mobile terminal of transmission, judge whether that according to the HARQ feedback that receives needs carry out data re-transmission, if need to carry out data re-transmission, again transmit the data of the business of the current use of described mobile terminal according to the transmission patterns that reads and transmission block size.

19. mobile terminal according to claim 18 is characterized in that, the type of the current business of using of described mobile terminal is VoIP business or data service.

20. mobile terminal according to claim 19, it is characterized in that, in the situation that the current business of using of described mobile terminal is as the VoIP business and determine to carry out the TTI binding transmission that the TTI number changes, the TTI number that adopts when described data transmission unit retransmits at every turn equates.

21. mobile terminal according to claim 19, it is characterized in that, in the situation that the current business of using of described mobile terminal is as data service and determine to carry out the TTI binding transmission that the TTI number changes, along with the increase of described data transmission unit to same bag data transmission times, the TTI number that comprises in the TTI binding reduces gradually.

22. mobile terminal according to claim 19 is characterized in that, described transmission block size determines that parameter is included as MCS index and the PRB number of the traffic assignments of the current use of described user.

23. mobile terminal according to claim 22 is characterized in that, the modulation system that described MCS index is corresponding is QPSK.

24. mobile terminal according to claim 22 is characterized in that, described the first transmission block size determining unit comprises:

The type of service judgment sub-unit is for the type of the business that judges the current use of described mobile terminal;

VoIP business transmission block size is determined subelement, be used in the situation that the current business of using of described mobile terminal as the VoIP business and carry out the TTI binding transmission that the TTI number changes, is determined described transmission block size according to described MCS index and described PRB number;

The data traffic transmission block size is determined subelement, be used in the situation that the current business of using of described mobile terminal as data service and carry out the TTI binding transmission that the TTI number changes, is determined described transmission block size according to the number of the TTI that comprises in described MCS index, described PRB number and TTI binding.

25. mobile terminal according to claim 18, it is characterized in that, described TTI binding parameter also comprises the transmission patterns sign corresponding with the type of the business of the current use of mobile terminal, and described the first transmission patterns determining unit is in the situation that the TTI binding parameter that described mobile terminal receives comprises that the transmission patterns sign corresponding with the type of the business of the current use of mobile terminal reads the transmission patterns corresponding with described transmission patterns sign.

26. a mobile terminal is characterized in that, comprising:

The second parameter receiving element, the TTI binding parameter and the transmission block size that are used for reception base station transmission are determined parameter, described TTI binds parameter and comprises whether carrying out the big or small TTI binding transmission of adjusting of transmission block;

The second transmission patterns determining unit carries out if be used for the indication of described TTI binding parameter the TTI binding transmission that the transmission block size is adjusted, and reads the transmission patterns corresponding with the type of the business of the current use of mobile terminal from described mobile terminal this locality;

The second transmission block size determining unit, be data service if be used for the current business of using of described mobile terminal, determine that according to the number of the TTI that whether carries out comprising in TTI binding transmission that the transmission block size adjusts, TTI binding and described transmission block size parameter determines the transmission block size;

27. mobile terminal according to claim 26 is characterized in that, described transmission block size determines that parameter is included as MCS index and the PRB number of the traffic assignments of the current use of described user.

28. mobile terminal according to claim 27 is characterized in that, the modulation system that described MCS index is corresponding is QPSK.

29. the uplink system of a TTI binding is characterized in that, comprises the described mobile terminal of any one in base station and claim 18-28, wherein, described base station sends determined TTI binding parameter and the definite parameter of transmission block size to described mobile terminal.

30. the uplink system of TTI binding according to claim 29 is characterized in that, described base station comprises:

TTI binding parameter determining unit is used for determining TTI binding parameter according to the type of the business of the uplink wireless channel quality of measuring and the current use of described mobile terminal;

The big or small definite parameter determining unit of transmission block is used for determining the definite parameter of transmission block size according to the uplink wireless channel quality of measuring.