CN104427459B

CN104427459B - A kind of data transmission method, terminal and base station

Info

Publication number: CN104427459B
Application number: CN201310379212.0A
Authority: CN
Inventors: 张向东
Original assignee: Huawei Technologies Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2013-08-27
Filing date: 2013-08-27
Publication date: 2018-04-20
Anticipated expiration: 2033-08-27
Also published as: CN104427459A; CN108684017A; CN108600995A

Abstract

The present invention provides a kind of data transmission method, terminal and base station, it is related to internet arena.The described method includes：Base station judges whether to adjust the coverage enhancement scheme currently used to terminal；If so, base station sends coverage enhancement adjust instruction includes coverage enhancement type to terminal, the coverage enhancement adjust instruction；Terminal is set to adjust the currently used coverage enhancement scheme of terminal according to the coverage enhancement adjust instruction；Base station adjusts the coverage enhancement scheme currently used to terminal, and using the coverage enhancement scheme transmission data after adjustment.Coverage enhancement scheme that can be currently used to terminal in the present invention carries out closed loop adjustment so that the currently used coverage enhancement scheme of terminal disclosure satisfy that terminal requirements, while be capable of providing data transmission efficiency.

Description

A kind of data transmission method, terminal and base station

Technical field

The present invention relates to Internet of Things field, more particularly to a kind of data transmission method, terminal and base station.

Background technology

With the fast development of technology of Internet of things, GSM in M2M (machine-to-machine, Machine To Machine) applications (Global System for Mobile communications, global system for mobile communications)/GPRS (General Packet Radio Service, general packet radio service technology) terminal is gradually by MTC (machine type Communication, machine type communication) terminal is replaced, and some MTC terminals are since local environment is special, for example be placed In the equipment such as the ammeter of basement or water meter, the loss that the data of base station and MTC terminal produce in transmitting procedure may ratio Base station communicate with conventional terminal produce loss bigger.Therefore, need to use one in the data transmission procedure of base station and MTC terminal Fixed coverage enhancement scheme is to compensate the loss that the data of base station and MTC terminal produce in transmitting procedure, to ensure MTC terminal Required service can be obtained.

Wherein, with MTC terminal in data transfer, MTC terminal measurement downlink loss, passes through default migration algorithm for base station Estimate uplink loss；MTC terminal is lost according to uplink, determines uplink enhanced scheme, and pass using definite uplink enhanced scheme Defeated upstream data；Meanwhile MTC terminal sends downlink and information is lost to base station；Base station receives the downlink loss letter that MTC terminal is sent Breath, information is lost according to the downlink, determines downlink enhanced scheme, and using definite downlink enhanced scheme transmission downlink data. Wherein, the loss that the upstream data that MTC terminal is sent to base station produces in transmitting procedure is lost for uplink；Base station is whole to MTC The loss that the downlink data that end is sent produces in transmitting procedure is lost for downlink.

In the implementation of the present invention, inventor has found that the prior art has at least the following problems：

Base station is with MTC terminal in data transmission procedure, and uplink loss may change, downlink loss may be sent out Possible inaccurate, measurement the possible inaccuracy of downlink loss is lost in changing, the uplink of measurement, and the uplink loss of estimation may not Accurately the downlink loss of either measurement is possible inaccurate when uplink loss is reduced, actual uplink loss ratio measures or estimation Uplink loss it is bigger than normal when, still using definite uplink enhanced scheme transmission upstream data, transmitting uplink data efficiency can be caused It is low；Equally, reduced when downlink is lost, when the downlink loss of the measurement of actual downlink loss ratio or estimation is bigger than normal, still using true Fixed downlink enhanced scheme transmission downlink data, can cause downlink data transmission efficiency low.When uplink loss increase, actual upper When row loss ratio measures or the loss of the uplink of estimation is less than normal, still using line number on definite uplink coverage enhancement scheme transmission According to MTC terminal can not obtain required service；Equally, when downlink loss increase, actual downlink loss ratio measure or estimate When the downlink loss of calculation is less than normal, it can not still be obtained using definite downlink coverage enhancement scheme transmission downlink data, MTC terminal Required service.

The content of the invention

In order to solve the problem of the prior art, the present invention provides a kind of data transmission method, terminal and base station.It is described Technical solution is as follows：

In a first aspect, the present invention provides a kind of data transmission method, the described method includes：

Base station judges whether to adjust the coverage enhancement scheme currently used to terminal；

If so, the base station sends coverage enhancement adjust instruction to the terminal, the coverage enhancement adjust instruction bag Include coverage enhancement type；Make the terminal adjust the currently used covering of the terminal according to the coverage enhancement adjust instruction to increase Strong scheme；

The base station adjusts the coverage enhancement scheme currently used to the terminal, and is increased using the covering after adjustment Strong scheme transmission data.

With reference to first aspect, in the first possible implementation of first aspect, the base station adjustment is to the end Currently used coverage enhancement scheme is held, including：

The base station receives the confirmation adjust instruction that the terminal is sent, according to the confirmation adjust instruction adjustment to described The currently used coverage enhancement scheme of terminal.

With reference to first aspect, in second of possible implementation of first aspect, the base station judges whether to adjust The coverage enhancement scheme currently used to terminal, including：

The base station acquisition reception terminal transmission data are properly received rate；

Judge the data is properly received whether rate is equal to the first predetermined threshold value；

If not, determine to adjust the coverage enhancement scheme currently used to the terminal.

With reference to first aspect, in the third possible implementation of first aspect, the base station judges whether to adjust The coverage enhancement scheme currently used to terminal, including：

The base station judges whether to receive the coverage enhancement adjust request that the terminal is sent；

If so, determine to adjust the coverage enhancement scheme currently used to the terminal.

With reference to first aspect, in the 4th kind of possible implementation of first aspect, the base station judges whether to adjust The coverage enhancement scheme currently used to terminal, including：

The base station obtains the uplink loss that the terminal sends data, and it is pre- to judge whether the uplink loss is equal to second If threshold value, if not, determining to adjust the coverage enhancement scheme currently used to the terminal；

And/or the base station obtains the downlink loss that the base station sends data, judge whether the downlink loss is equal to 3rd predetermined threshold value, if not, determining to adjust the coverage enhancement scheme currently used to the terminal；

And/or the base station obtains the downlink that the terminal sends the uplink loss of data and the base station sends data Loss, judges whether the absolute value of the difference of the uplink loss and downlink loss is equal to the 4th predetermined threshold value, if not, Determine to adjust the coverage enhancement scheme currently used to the terminal.

The 4th kind of possible implementation with reference to first aspect, in the 5th kind of possible implementation of first aspect In, the base station obtains the uplink loss that the terminal sends data, including：

Terminal described in the base station measurement sends the uplink loss of data；

Alternatively, the base station receives the status information that the terminal is sent, the status information is lost including the downlink, According to the status information, the downlink loss is obtained, is lost according to the downlink, estimate the uplink loss.

The 4th kind of possible implementation with reference to first aspect, in the 6th kind of possible implementation of first aspect In, the base station obtains the downlink loss that the base station sends data, including：

Terminal described in the base station measurement sends the uplink loss of data, is lost according to the uplink, estimates the downlink Loss；

Alternatively, the base station receives the status information that the terminal is sent, the status information is lost including the downlink, According to the status information, the downlink loss is obtained.

The 4th kind of possible implementation with reference to first aspect, in the 7th kind of possible implementation of first aspect In, the base station obtains the downlink loss that the terminal sends the uplink loss of data and the base station sends data, including：

Alternatively, terminal described in the base station measurement sends the uplink loss of data, the base station receives the terminal and sends Status information, the status information include the downlink loss, be lost according to downlink described in the state information acquisition；

Alternatively, the base station receives the status information that the terminal is sent, the status information is lost including the downlink, It is lost according to the downlink, estimates the uplink loss.

With reference to first aspect, in the 8th kind of possible implementation of first aspect, the transmission coverage enhancement adjustment Instruct to the terminal, the terminal is adjusted the coverage enhancement scheme according to the coverage enhancement adjust instruction, including：

If the coverage enhancement type is uplink coverage enhancement, uplink coverage enhancement adjust instruction is sent to the end End, makes the terminal adjust the currently used uplink coverage enhancement side of the terminal according to the uplink coverage enhancement adjust instruction Case；

If the coverage enhancement type is downlink coverage enhancement, downlink coverage enhancement adjust instruction is sent to the end End, makes the terminal adjust the currently used downlink coverage enhancement side of the terminal according to the downlink coverage enhancement adjust instruction Case；

If the coverage enhancement type is uplink and downlink coverage enhancement, uplink and downlink coverage enhancement adjust instruction is sent to institute Terminal is stated, the terminal is adjusted the currently used uplink and downlink of the terminal according to the uplink and downlink coverage enhancement adjust instruction and covers Lid enhanced scheme.

With reference to first aspect, in the 9th kind of possible implementation of first aspect, the base station adjustment is to the end Currently used coverage enhancement scheme is held, including：

If the coverage enhancement type is uplink coverage enhancement, the base station adjustment is currently used to the terminal Uplink coverage enhancement scheme；

If the coverage enhancement type is downlink coverage enhancement, the base station adjustment is currently used to the terminal Downlink coverage enhancement scheme；

If the coverage enhancement type is uplink and downlink coverage enhancement, the base station adjustment is currently used to the terminal Uplink and downlink coverage enhancement scheme.

With reference to first aspect, in the tenth kind of possible implementation of first aspect, the base station sends coverage enhancement Adjust instruction gives the terminal, the terminal is adjusted the coverage enhancement scheme, bag according to the coverage enhancement adjust instruction Include：

If the coverage enhancement adjust instruction is absolute coverage enhancement adjust instruction, the base station sends described absolute Coverage enhancement adjust instruction gives the terminal, the terminal is worked as the terminal according to the definitely coverage enhancement adjust instruction The preceding coverage enhancement project setting used is in specified coverage enhancement scheme；

If the coverage enhancement adjust instruction is opposite coverage enhancement adjust instruction, the base station sends described opposite Coverage enhancement adjust instruction gives the terminal, the terminal is worked as according to the opposite coverage enhancement adjust instruction and the terminal The preceding coverage enhancement scheme used, by the currently used coverage enhancement project setting of the terminal to the coverage enhancement scheme specified On.

With reference to first aspect, in a kind of the tenth possible implementation of first aspect, the base station adjustment is to described The currently used coverage enhancement scheme of terminal, including：

If the coverage enhancement adjust instruction is absolute coverage enhancement adjust instruction, the base station is according to described absolute Coverage enhancement adjust instruction is by the currently used coverage enhancement project setting of the terminal to specified coverage enhancement scheme；

If the coverage enhancement adjust instruction is opposite coverage enhancement adjust instruction, the base station is according to described opposite Coverage enhancement adjust instruction and the currently used coverage enhancement scheme of the terminal, will be to the coverage enhancement project setting to referring to In fixed coverage enhancement scheme.

Second aspect, the present invention provides a kind of data transmission method, the described method includes：

Terminal receives the coverage enhancement adjust instruction that base station is sent, and the coverage enhancement adjust instruction includes coverage enhancement class Type；

The currently used coverage enhancement scheme of the terminal is adjusted according to the coverage enhancement adjust instruction；

Using the coverage enhancement scheme transmission data after adjustment.

With reference to second aspect, in the first possible implementation of second aspect, the method further includes：

The terminal, which is sent, confirms that adjust instruction to the base station, makes the base station according to the confirmation adjust instruction adjustment The coverage enhancement scheme currently used to the terminal.

With reference to second aspect, in second of possible implementation of second aspect, the terminal receives base station and sends Coverage enhancement adjust instruction before, the method further includes：

The terminal sends coverage enhancement adjust request to the base station, the base station is asked according to the coverage enhancement Judge whether to adjust the coverage enhancement scheme currently used to the terminal.

With reference to second aspect, in the third possible implementation of second aspect, the terminal receives base station and sends Coverage enhancement adjust instruction before, the method further includes：

The terminal sends status information includes the downlink that the base station sends data to the base station, the status information Loss, is lost base station downlink according to the state information acquisition.

It is described according to the coverage enhancement in the 4th kind of possible implementation of second aspect with reference to second aspect Adjust instruction adjusts the coverage enhancement scheme, including：

If the coverage enhancement type is uplink coverage enhancement, according to coverage enhancement adjust instruction adjustment The currently used uplink coverage enhancement scheme of terminal；

If the coverage enhancement type is downlink coverage enhancement, according to coverage enhancement adjust instruction adjustment The currently used downlink coverage enhancement scheme of terminal；

If the coverage enhancement type is uplink and downlink coverage enhancement, institute is adjusted according to the coverage enhancement adjust instruction State the currently used uplink and downlink coverage enhancement scheme of terminal.

It is described according to the coverage enhancement in the 5th kind of possible implementation of second aspect with reference to second aspect Adjust instruction adjusts the currently used coverage enhancement scheme of the terminal, including：

If the coverage enhancement adjust instruction is the definitely coverage enhancement adjust instruction, according to the definitely covering Strengthen adjust instruction by the currently used coverage enhancement project setting of the terminal to specified coverage enhancement scheme；

If the coverage enhancement adjust instruction is the opposite coverage enhancement adjust instruction, according to the opposite covering Strengthen adjust instruction and the currently used coverage enhancement scheme of the terminal by the currently used coverage enhancement scheme of the terminal It is adjusted in the coverage enhancement scheme specified.

The third aspect, the present invention provides a kind of base station, the base station includes：

Judgment module, for judging whether to adjust the coverage enhancement scheme currently used to terminal；

First sending module, if judging to adjust the coverage enhancement side currently used to terminal for the judgment module During case, send coverage enhancement adjust instruction includes coverage enhancement type to the terminal, the coverage enhancement adjust instruction；Make institute State terminal and the currently used coverage enhancement scheme of the terminal is adjusted according to the coverage enhancement adjust instruction；

First adjustment module, for adjusting the coverage enhancement scheme currently used to the terminal；

First transport module, for using the coverage enhancement scheme transmission data after adjusting.

With reference to the third aspect, in the first possible implementation of the third aspect, the base station further includes：：

First receiving module, the confirmation adjust instruction sent for receiving the terminal, according to the confirmation adjust instruction The adjustment coverage enhancement scheme currently used to the terminal.

With reference to the third aspect, in second of possible implementation of the third aspect, the judgment module, including：

First acquisition unit, rate is properly received for the acquisition reception terminal transmission data；

First judging unit, is properly received whether rate is equal to the first predetermined threshold value for judge the data；

First determination unit, if the rate that is properly received for determining the data for first determination unit is not equal to During first predetermined threshold value, determine to adjust the coverage enhancement scheme currently used to the terminal.

With reference to the third aspect, in the third possible implementation of the third aspect, the judgment module, including：

Second judging unit, the coverage enhancement adjust request sent for judging whether to receive the terminal；

Second determination unit, if increased for the covering that second judging unit is judged to receive the terminal transmission During strong adjust request, determine to adjust the coverage enhancement scheme currently used to the terminal.

With reference to the third aspect, in the 4th kind of possible implementation of the third aspect, the judgment module, including：

Second acquisition unit, the uplink loss of data is sent for obtaining the terminal；

3rd judging unit, for judging whether the uplink loss is equal to the second predetermined threshold value；

3rd determination unit, if judging that the uplink loss is not equal to described second for the 3rd judging unit During predetermined threshold value, determine to adjust the coverage enhancement scheme currently used to the terminal；

And/or the 3rd acquiring unit, the downlink loss of data is sent for obtaining the base station；

4th judging unit, for judging whether the downlink loss is equal to the 3rd predetermined threshold value；

4th determination unit, if judging that the downlink loss is not equal to the described 3rd for the 4th judging unit During predetermined threshold value, determine to adjust the coverage enhancement scheme currently used to the terminal；

And/or the 4th acquiring unit, for obtaining, the terminal sends the uplink loss of data and the base station sends number According to downlink be lost；

5th judging unit, for judging whether the absolute value of difference of the uplink loss and downlink loss is equal to 4th predetermined threshold value；

5th determination unit, if judging the uplink loss and downlink loss for the 5th judging unit The absolute value of difference when being not equal to four predetermined threshold value, determine to adjust the coverage enhancement currently used to the terminal Scheme.

With reference to the 4th kind of possible implementation of the third aspect, in the 5th kind of possible implementation of the third aspect In, the second acquisition unit, the uplink loss of data is sent for measuring the terminal；

Alternatively, the second acquisition unit, the status information sent for receiving the terminal, the status information include The downlink loss；According to the status information, the downlink loss is obtained；It is lost according to the downlink, estimates the uplink Loss.

With reference to the 4th kind of possible implementation of the third aspect, in the 6th kind of possible implementation of the third aspect In, the 3rd acquiring unit, the uplink loss of data is sent for measuring the terminal；It is lost according to the uplink, estimation The downlink loss；

Alternatively, the 3rd acquiring unit, the status information sent for receiving the terminal, the status information include The downlink loss；According to the status information, the downlink loss is obtained.

With reference to the 4th kind of possible implementation of the third aspect, in the 7th kind of possible implementation of the third aspect In, the 4th acquiring unit, the uplink loss of data is sent for measuring the terminal；It is lost according to the uplink, estimation The downlink loss；

Alternatively, the 4th acquiring unit, the uplink loss of data is sent for measuring the terminal；Receive the terminal The status information of transmission, the status information are lost including the downlink；It is lost according to downlink described in the state information acquisition；

Alternatively, the 4th acquiring unit, the status information sent for receiving the terminal, the status information include The downlink loss；It is lost according to the downlink, estimates the uplink loss.

With reference to the third aspect, in the 8th kind of possible implementation of the third aspect, if the coverage enhancement type For uplink coverage enhancement when, first sending module, for sending uplink coverage enhancement adjust instruction to the terminal, makes institute State terminal and the currently used uplink coverage enhancement scheme of the terminal is adjusted according to the uplink coverage enhancement adjust instruction；

If the coverage enhancement type is downlink coverage enhancement, first sending module, covers for sending downlink Lid enhancing adjust instruction gives the terminal, the terminal is adjusted the terminal according to the downlink coverage enhancement adjust instruction and works as The preceding downlink coverage enhancement scheme used；

If the coverage enhancement type is uplink and downlink coverage enhancement, first sending module, for sending up and down Row coverage enhancement adjust instruction gives the terminal, makes the terminal according to uplink and downlink coverage enhancement adjust instruction adjustment The currently used uplink and downlink coverage enhancement scheme of terminal.

With reference to the third aspect, in the 9th kind of possible implementation of the third aspect, if the coverage enhancement type For uplink coverage enhancement when, the first adjustment module, for adjusting the uplink coverage enhancement side currently used to the terminal Case；

If the coverage enhancement type is downlink coverage enhancement, the first adjustment module, for adjusting to described The currently used downlink coverage enhancement scheme of terminal；

If the coverage enhancement type is uplink and downlink coverage enhancement, the first adjustment module, for adjusting to institute State the currently used uplink and downlink coverage enhancement scheme of terminal.

With reference to the third aspect, in the tenth kind of possible implementation of the third aspect, if the coverage enhancement adjusts Instruct for absolute coverage enhancement adjust instruction when, first sending module, for send it is described definitely coverage enhancement adjustment refer to Making to the terminal, makes the terminal be increased the currently used covering of the terminal according to the definitely coverage enhancement adjust instruction Strong project setting is in specified coverage enhancement scheme；

If the coverage enhancement adjust instruction is opposite coverage enhancement adjust instruction, first sending module, is used In sending the opposite coverage enhancement adjust instruction to the terminal, the terminal is set to be referred to according to the opposite coverage enhancement adjustment Order and the currently used coverage enhancement scheme of the terminal, by the currently used coverage enhancement project setting of the terminal to specified Coverage enhancement scheme on.

With reference to the third aspect, in a kind of the tenth possible implementation of the third aspect, if the coverage enhancement tune When whole instruction is absolute coverage enhancement adjust instruction, the first adjustment module, for being adjusted according to the definitely coverage enhancement Instruction is by the currently used coverage enhancement project setting of the terminal to specified coverage enhancement scheme；

If the coverage enhancement adjust instruction is opposite coverage enhancement adjust instruction, the first adjustment module, is used According to the currently used coverage enhancement scheme of the opposite coverage enhancement adjust instruction and the terminal, the terminal will be worked as The preceding coverage enhancement project setting used is in specified coverage enhancement scheme.

Fourth aspect, the present invention provides a kind of terminal, the terminal includes：

Second receiving module, for receiving the coverage enhancement adjust instruction of base station transmission, the coverage enhancement adjust instruction Including coverage enhancement type；

Second adjustment module, increases for adjusting the currently used covering of the terminal according to the coverage enhancement adjust instruction Strong scheme；

Second transport module, for using the coverage enhancement scheme transmission data after adjusting.

With reference to fourth aspect, in the first possible implementation of fourth aspect, the terminal further includes：

Second sending module, confirms that adjust instruction to the base station, makes the base station confirm to adjust according to described for sending Whole instruction adjusts the coverage enhancement scheme currently used to the terminal.

With reference to fourth aspect, in second of possible implementation of fourth aspect, the terminal further includes：

3rd sending module, for sending coverage enhancement adjust request to the base station, makes the base station be covered according to Lid enhancing request judges whether to adjust the coverage enhancement scheme currently used to the terminal.

With reference to fourth aspect, in the third possible implementation of fourth aspect, the terminal further includes：

4th sending module, sends for sending status information to the base station, the status information including the base station The downlink loss of data, is lost base station downlink according to the state information acquisition.

With reference to fourth aspect, in the 4th kind of possible implementation of fourth aspect, if the coverage enhancement type For uplink coverage enhancement when, the second adjustment module, works as adjusting the terminal according to the coverage enhancement adjust instruction The preceding uplink coverage enhancement scheme used；

If the coverage enhancement type is downlink coverage enhancement, the second adjustment module, for being covered according to Lid enhancing adjust instruction adjusts the currently used downlink coverage enhancement scheme of the terminal；

If the coverage enhancement type is uplink and downlink coverage enhancement, the second adjustment module, for according to Coverage enhancement adjust instruction adjusts the currently used uplink and downlink coverage enhancement scheme of the terminal.

With reference to fourth aspect, in the 5th kind of possible implementation of fourth aspect, if the coverage enhancement adjusts Instruct for the definitely coverage enhancement adjust instruction when, the second adjustment module, for according to the definitely coverage enhancement tune Whole instruction is by the currently used coverage enhancement project setting of the terminal to specified coverage enhancement scheme；

If the coverage enhancement adjust instruction is the opposite coverage enhancement adjust instruction, the second adjustment mould Block, for according to the currently used coverage enhancement scheme of the opposite coverage enhancement adjust instruction and the terminal by the terminal Currently used coverage enhancement project setting is in specified coverage enhancement scheme.

5th aspect, the present invention provides a kind of base station, the base station includes：First memory and first processor, are used In the data transmission method described in execution first aspect.

6th aspect, the present invention provides a kind of terminal, the terminal includes：Second memory and second processor, are used In the data transmission method described in execution second aspect.

In embodiments of the present invention, base station judges whether to adjust the coverage enhancement scheme currently used to terminal；If so, Base station sends coverage enhancement adjust instruction includes coverage enhancement type to terminal, the coverage enhancement adjust instruction；Make terminal according to The currently used coverage enhancement scheme of coverage enhancement adjust instruction adjustment terminal；Base station adjusts the covering currently used to terminal Enhanced scheme, and using the coverage enhancement scheme transmission data after adjustment.Covering that can be currently used to terminal in the present invention Enhanced scheme carries out closed loop adjustment so that the currently used coverage enhancement scheme of terminal disclosure satisfy that terminal requirements, while can Data transmission efficiency is provided.

Brief description of the drawings

Fig. 1 is a kind of method flow diagram for data transfer that the embodiment of the present invention 1 provides；

Fig. 2 is a kind of method flow diagram for data transfer that the embodiment of the present invention 1 provides；

Fig. 3 is a kind of method flow diagram for data transfer that the embodiment of the present invention 2 provides；

Fig. 4 is a kind of apparatus structure schematic diagram for base station that the embodiment of the present invention 3 provides；

Fig. 5 is a kind of another apparatus structure schematic diagram for base station that the embodiment of the present invention 3 provides；

Fig. 6 is a kind of apparatus structure schematic diagram for terminal that the embodiment of the present invention 4 provides；

Fig. 7 is a kind of another apparatus structure schematic diagram for terminal that the embodiment of the present invention 4 provides；

Fig. 8 is a kind of apparatus structure schematic diagram for base station that the embodiment of the present invention 5 provides；

Fig. 9 is a kind of apparatus structure schematic diagram for terminal that the embodiment of the present invention 6 provides.

Embodiment

To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention Formula is described in further detail.

Embodiment 1

An embodiment of the present invention provides a kind of data transmission method.Referring to Fig. 1, wherein, this method includes：

101：Base station judges whether to adjust the coverage enhancement scheme currently used to terminal；

102：If so, base station sends coverage enhancement adjust instruction includes covering to terminal, the coverage enhancement adjust instruction Strengthen type；Terminal is set to adjust the currently used coverage enhancement scheme of terminal according to the coverage enhancement adjust instruction；

103：Base station adjusts the coverage enhancement scheme currently used to terminal, and is passed using the coverage enhancement scheme after adjustment Transmission of data.

An embodiment of the present invention provides a kind of data transmission method.Referring to Fig. 2, wherein, this method includes：

201：Terminal receives the coverage enhancement adjust instruction that base station is sent, which includes coverage enhancement Type；

202：Terminal adjusts the currently used coverage enhancement scheme of terminal according to the coverage enhancement adjust instruction；

203：Terminal is using the coverage enhancement scheme transmission data after adjustment.

Embodiment 2

An embodiment of the present invention provides a kind of data transmission method.Referring to Fig. 3, wherein, this method includes：

301：Base station judges whether to adjust the coverage enhancement scheme currently used to terminal；

Wherein, in embodiments of the present invention, terminal is any MTC terminal；Coverage enhancement scheme include terminal and base station it Between the coverage enhancement technology that uses when transmitting data, which can be：Repeat transmission or power borrow etc..

Wherein, base station can be lost according to caused by terminal and base station transmission data, and coverage enhancement demand is divided Level, different coverage enhancement demands correspond to different coverage enhancement grades.Correspondingly, base station can currently make by adjusting terminal Coverage enhancement grade, to adjust the currently used coverage enhancement scheme of terminal.

Wherein, in embodiments of the present invention, coverage enhancement grade is corresponding with coverage enhancement scheme, adjusts coverage enhancement Scheme and adjustment coverage enhancement grade are equivalent.That is, the coverage enhancement scheme in the present invention could alternatively be coverage enhancement etc. Level.

Wherein, the loss that the upstream data that terminal is sent to base station produces in transmitting procedure is lost for uplink；Base station to The loss that the downlink data that MTC terminal is sent produces in transmitting procedure is lost for downlink.

Further, base station judges whether to adjust the operation of the coverage enhancement scheme currently used to terminal, Ke Yiwei：

Base station, which obtains receiving terminal and sends data, is properly received rate, and judge the data is properly received whether rate is equal to the One predetermined threshold value, if not, base station is determined to adjust the coverage enhancement scheme currently used to terminal.

Wherein, data are properly received rate and can be not equal to the first predetermined threshold value：It is pre- that the acceptance rate of data is more than first If threshold value；Or the acceptance rate of data is less than the first predetermined threshold value.That is base station judges whether the acceptance rate of the data is equal to first Predetermined threshold value, if not, base station is determined to adjust the operation of the coverage enhancement scheme currently used to terminal, Ke Yiwei：

Base station judges whether the acceptance rate of the data is more than the first predetermined threshold value, if so, base station determines adjustment to end Hold currently used coverage enhancement scheme.Alternatively, base station judges whether the acceptance rate of the data is less than the first predetermined threshold value, if It is that base station is determined to adjust the coverage enhancement scheme currently used to terminal.

Wherein, the first predetermined threshold value can be configured and change according to system performance, and the embodiment of the present invention is pre- to first If threshold value is not specifically limited.

Further, base station judges whether to adjust the operation of the coverage enhancement scheme currently used to terminal, can also be：

Base station judges whether to receive the coverage enhancement adjust request of terminal transmission；If so, adjustment pair is determined in base station The currently used coverage enhancement scheme of terminal.

Wherein, the rate that is properly received for transmission downlink data in base station being received when terminal is less than the 5th predetermined threshold value, or terminal When can not obtain required service, when terminal determines the coverage enhancement scheme for needing adjustment terminal currently used, terminal hair Coverage enhancement adjust request is sent to base station.

Wherein, the 5th predetermined threshold value can be configured and change according to system performance, and the present invention is to the 5th predetermined threshold value It is not specifically limited.

Wherein, before base station judges whether to adjust the coverage enhancement scheme currently used to terminal, terminal measurement base station hair Send the downlink of data to be lost, and send status information to base station, which includes the downlink loss that base station sends data.

Base station obtains the uplink loss that terminal sends data；Judge whether uplink loss is equal to the second predetermined threshold value；Such as Fruit is no, and base station is determined to adjust the coverage enhancement scheme currently used to terminal.

Wherein, in embodiments of the present invention, uplink loss can be that uplink loss is more than the not equal to the second predetermined threshold value Two predetermined threshold values, or uplink loss are less than the second predetermined threshold value.Then it is default to judge whether uplink loss is equal to second for base station Threshold value, if not, base station is determined to adjust the operation of the coverage enhancement scheme currently used to terminal, Ke Yiwei：

Base station judges whether uplink loss is more than the second predetermined threshold value, if so, base station determines that terminal is worked as in adjustment The preceding coverage enhancement scheme used；Alternatively, base station judges whether uplink loss is less than the second predetermined threshold value, if so, base station Determine to adjust the coverage enhancement scheme currently used to terminal.

Wherein, the second predetermined threshold value can need to be configured and change according to system, in embodiments of the present invention, to the Two predetermined threshold values are not specifically limited.

Base station obtains the downlink loss that base station sends data；Judge whether downlink loss is equal to the 3rd predetermined threshold value；Such as Fruit is no, and base station is determined to adjust the coverage enhancement scheme currently used to terminal.

Wherein, in embodiments of the present invention, downlink loss can be that downlink loss is more than the not equal to the 3rd predetermined threshold value Three predetermined threshold values, or downlink loss are less than the 3rd predetermined threshold value.Base station judges whether downlink loss is equal to the 3rd default threshold Value, if not, base station is determined to adjust the operation of the coverage enhancement scheme currently used to terminal, Ke Yiwei：

Base station judges whether downlink loss is more than the 3rd predetermined threshold value, if so, base station determines that terminal is worked as in adjustment The preceding coverage enhancement scheme used；Alternatively, base station judges whether downlink loss is less than the 3rd predetermined threshold value, if so, base station Determine to adjust the coverage enhancement scheme currently used to terminal.

Wherein, the 3rd predetermined threshold value can need to be configured and change according to system, in embodiments of the present invention, to the Three predetermined threshold values are not specifically limited.

Base station obtains the downlink loss that terminal sends the uplink loss of data and base station sends data；Base station judges that uplink is damaged Whether the absolute value of consumption and the difference of downlink loss is equal to the 4th predetermined threshold value；If not, base station determines that terminal is worked as in adjustment The preceding coverage enhancement scheme used.

Wherein, in embodiments of the present invention, the absolute value of the difference of uplink loss and downlink loss is default not equal to the 4th Threshold value, Ke Yiwei：Uplink is lost and the absolute value of difference of downlink loss is more than the 4th predetermined threshold value, alternatively, uplink loss with The absolute value of the difference of downlink loss is less than the 4th predetermined threshold value.

Wherein, the absolute value of the difference of uplink loss and downlink loss can be the difference of uplink loss and downlink loss, Or the difference of downlink loss and uplink loss.Then base station judge uplink loss and downlink loss difference absolute value whether etc. , can be with if not, base station is determined to adjust the operation of the coverage enhancement scheme currently used to terminal in the 4th predetermined threshold value For：

Base station judges whether uplink loss and the difference of downlink loss are more than the 4th predetermined threshold value, if so, base station determines Go out the adjustment coverage enhancement scheme currently used to terminal；Alternatively, base station judges that uplink is lost and whether is the difference of downlink loss Less than the 4th predetermined threshold value, if so, base station is determined to adjust the coverage enhancement scheme currently used to terminal；Alternatively, base station Judge whether downlink loss and the difference of uplink loss are more than the 4th predetermined threshold value, if so, base station determines adjustment to terminal Currently used coverage enhancement scheme；Alternatively, base station judges whether the difference of downlink loss and uplink loss is default less than the 4th Threshold value, if so, base station is determined to adjust the coverage enhancement scheme currently used to terminal.

Wherein, the 4th predetermined threshold value can need to be configured and change according to system, in embodiments of the present invention, to the Four predetermined threshold values are not specifically limited.

Further, base station obtains the operation that terminal sends the uplink loss of data, Ke Yiwei：Base station measurement terminal is sent The uplink loss of data；Alternatively, the status information that base station receiving terminal is sent, which is lost including downlink；According to shape State information, obtains the downlink loss；It is lost according to downlink, estimation uplink loss.

Wherein, base station measurement terminal sends the operation of the uplink loss of data, Ke Yiwei：Base station receiving terminal is sent upper Row data, and determine to receive the reception power of upstream data；Base station obtains the transmit power that terminal sends upstream data, according to connecing Receive power and transmit power obtains the uplink loss that terminal sends upstream data.

Wherein, distinctive signal can be based on when base station measurement terminal sends the uplink loss of data, for example, being based on pilot tone Preamble；Alternatively, it is based on SRS (Sounding Reference Signal, interception reference signal).

Wherein, before terminal is communicated with base station, terminal need by random access procedure access network, terminal initiate with During machine access procedure, terminal sends pilot tone Preamble to base station on running time-frequency resource TF-resource.Then base station measurement terminal Send the operation of the uplink loss of data, Ke Yiwei：

The pilot tone Preamble that base station receiving terminal is sent, and determine to receive the reception power of pilot tone Preamble.Base station The transmit power that terminal sends pilot tone Preamble is obtained, is obtained eventually according to the reception power and transmit power of pilot tone Preamble End sends the uplink loss of pilot tone Preamble.

Wherein, when the uplink loss of base station measurement terminal transmission data is based on interception reference signal, base station receiving terminal hair The interception reference signal sent, and determine to receive the reception power of interception reference signal, base station obtains terminal transmission and intercepts with reference to letter Number transmit power, obtain terminal according to receive power and the transmit power of interception reference signal and send the upper of interception reference signal Row loss.

Wherein, base station is lost according to downlink, the operation of estimation uplink loss, Ke Yiwei：

Base station is according to downlink loss and the first preset algorithm, estimation uplink loss.First preset algorithm can be existing Any estimating algorithm.

Estimate to obtain uplink loss for example, the first preset algorithm subtracts 10dB for downlink loss, if then downlink loss is 30dB, Then uplink loss is 20dB.

Further, base station obtains the operation that base station sends the downlink loss of data, Ke Yiwei：

Base station measurement terminal sends the uplink loss of data；It is lost according to uplink, estimation downlink loss；Alternatively, base station connects The status information that terminal is sent is received, which is lost including downlink；According to status information, downlink loss is obtained.

Wherein, terminal measurement base station sends the operation of the downlink loss of data, Ke Yiwei：

Terminal receives the downlink data that base station is sent, and determines to receive the reception power of downlink data；Terminal obtains base station The transmit power of downlink data is sent, is lost according to the downlink for receiving power and transmit power acquisition base station transmission data.

Wherein, distinctive signal can be based on when terminal measurement base station sends the downlink loss of data, for example, CRS (Cell- Specific Reference Signal, cell specific reference signal), i.e., terminal receives the cell specific reference that base station is sent Signal, and determine to receive the reception power of cell specific reference signal, terminal obtains base station and sends cell specific reference signal Transmit power, is lost according to the downlink for receiving power and transmit power acquisition base station transmission cell specific reference signal.

Wherein, base station is lost according to uplink, the operation of estimation downlink loss, Ke Yiwei：

Base station is according to uplink loss and the second preset algorithm, estimation downlink loss.Second preset algorithm can be existing Any estimating algorithm.

For example, the second preset algorithm estimates downlink loss for uplink loss plus 10dB, and if uplink loss is 10dB, downlink It is lost as 20dB.

Further, base station obtains the behaviour that terminal sends the uplink loss of data and the downlink loss of base station transmission data Make, Ke Yiwei：

Base station measurement terminal sends the uplink loss of data；It is lost according to uplink, estimates the downlink loss；Alternatively, base Measuring terminals of standing send the uplink loss of data；The status information that base station receiving terminal is sent, the status information are damaged including downlink Consumption；Base station is lost according to state information acquisition downlink；Alternatively, the status information that base station receiving terminal is sent, the status information bag Include downlink loss；It is lost according to downlink, estimation uplink loss.

Wherein, base station measurement terminal sends the operation of the uplink loss of data and above-mentioned base station measurement terminal sends data The method of uplink loss is identical, and base station is lost according to uplink, and the method for estimation downlink loss is identical with above-mentioned evaluation method, base station It is lost according to downlink, estimation uplink loss is identical with above-mentioned evaluation method, and details are not described herein.

Further, when the coverage enhancement scheme currently used to terminal is judged not adjust in base station, terminal and base station it Between using the currently used coverage enhancement scheme transmission data of terminal.

302：If so, base station sends coverage enhancement adjust instruction includes covering to terminal, the coverage enhancement adjust instruction Strengthen type；

Wherein, when the coverage enhancement scheme currently used to terminal is determined to need to adjust in base station, base station sends covering and increases Strong adjust instruction is to terminal.

Wherein, which can be that existing channel or order carry, for example, random access procedure Message 4；Or the coverage enhancement adjust instruction is that a kind of coverage enhancement newly defined adjusts MAC (Media Access Control, FDDI sublayer protocol) CE (Control Element, control element) orders.

Wherein, coverage enhancement type includes：Uplink coverage enhancement, downlink coverage enhancement and uplink and downlink coverage enhancement.

Wherein, used coverage enhancement scheme when uplink coverage enhancement sends upstream data to base station for terminal；Downlink Used coverage enhancement scheme when coverage enhancement sends downlink data to terminal for base station；Uplink and downlink coverage enhancement is sent out for terminal Upstream data is sent to base station, used coverage enhancement scheme when base station sends downlink data to terminal.

Wherein, if coverage enhancement type is uplink coverage enhancement, base station send uplink coverage enhancement adjust instruction to Terminal, makes terminal adjust the currently used uplink coverage enhancement scheme of terminal according to the uplink coverage enhancement adjust instruction；If When coverage enhancement type is downlink coverage enhancement, base station sends downlink coverage enhancement adjust instruction to terminal, makes terminal according to this The currently used downlink coverage enhancement scheme of downlink coverage enhancement adjust instruction adjustment terminal；If coverage enhancement type is upper and lower During row coverage enhancement, base station sends uplink and downlink coverage enhancement adjust instruction to terminal, makes terminal according to the uplink and downlink coverage enhancement The currently used uplink and downlink coverage enhancement scheme of adjust instruction adjustment terminal.

Further, coverage enhancement adjust instruction includes absolute coverage enhancement adjust instruction or opposite coverage enhancement adjustment refers to Order.

Wherein, when coverage enhancement adjust instruction is absolute coverage enhancement adjust instruction, base station sends absolute coverage enhancement Adjust instruction makes terminal according to the absolute coverage enhancement adjust instruction by the currently used coverage enhancement scheme tune of terminal to terminal It is whole in specified coverage enhancement scheme.

For example, definitely coverage enhancement adjust instruction is to cover the currently used coverage enhancement level adjustment of terminal to the third level In lid enhancing grade.

Wherein, when coverage enhancement adjust instruction is opposite coverage enhancement adjust instruction, base station sends opposite coverage enhancement Adjust instruction makes terminal according to the coverage enhancement scheme currently used with respect to coverage enhancement adjust instruction and terminal to terminal, By in the currently used coverage enhancement project setting of terminal to specified coverage enhancement scheme.

For example, opposite coverage enhancement adjust instruction is that the currently used coverage enhancement grade of terminal is raised two-stage；Or The currently used coverage enhancement grade of terminal is reduced into two-stage.

303：Terminal receives the coverage enhancement adjust instruction that base station is sent, and is adjusted eventually according to the coverage enhancement adjust instruction Hold currently used coverage enhancement scheme；

Wherein, coverage enhancement type includes uplink coverage enhancement, downlink coverage enhancement and uplink and downlink coverage enhancement.

Wherein, if coverage enhancement type is uplink coverage enhancement, terminal adjusts eventually according to coverage enhancement adjust instruction Hold currently used uplink coverage enhancement scheme.

Wherein, if coverage enhancement type is downlink coverage enhancement, terminal adjusts eventually according to coverage enhancement adjust instruction Hold currently used downlink coverage enhancement scheme.

Wherein, if coverage enhancement type is uplink and downlink coverage enhancement, terminal is adjusted according to coverage enhancement adjust instruction The currently used uplink and downlink coverage enhancement scheme of terminal.

Wherein, if coverage enhancement adjust instruction is absolute coverage enhancement adjust instruction, terminal is according to the absolute covering Strengthen adjust instruction by the currently used coverage enhancement project setting of terminal to specified coverage enhancement scheme.

Wherein, if coverage enhancement adjust instruction is opposite coverage enhancement adjust instruction, terminal is according to the opposite covering Strengthen adjust instruction and the currently used coverage enhancement scheme of terminal by the currently used coverage enhancement project setting of terminal to finger In fixed coverage enhancement scheme.

Wherein, when data are transmitted between terminal and base station, terminal and base station use identical coverage enhancement scheme.Such as, The currently employed coverage enhancement scheme of terminal is is repeated 3 times transmission, then base station receiving terminal by the way of reception is repeated 3 times is sent out The data sent.

Further, when terminal receives the coverage enhancement adjust instruction of base station transmission, send and confirm adjust instruction to base Stand, to notify base station to agree to the currently used coverage enhancement scheme of adjustment terminal.

304：Base station adjusts the coverage enhancement scheme currently used to terminal；

Wherein, base station adjusts the operation of the coverage enhancement scheme currently used to terminal, Ke Yiwei：

If coverage enhancement type is uplink coverage enhancement, base station adjusts the uplink coverage enhancement currently used to terminal Scheme；If coverage enhancement type is downlink coverage enhancement, base station adjusts the downlink coverage enhancement side currently used to terminal Case；If coverage enhancement type is uplink and downlink coverage enhancement, base station adjusts the uplink and downlink coverage enhancement currently used to terminal Scheme.

Wherein, base station adjusts the operation of the uplink coverage enhancement scheme currently used to terminal, Ke Yiwei：

Base station by the currently used uplink coverage enhancement project setting of terminal to than the coverage enhancement residing for present terminal In the high uplink coverage enhancement scheme of rank；Alternatively, the uplink coverage enhancement project setting currently used to terminal is arrived in base station In the uplink coverage enhancement scheme lower than the coverage enhancement rank residing for present terminal.

Wherein, base station adjusts the operation of the downlink coverage enhancement scheme currently used to terminal, Ke Yiwei：

Base station by the currently used downlink coverage enhancement project setting of terminal to than the coverage enhancement residing for present terminal In the high downlink coverage enhancement scheme of rank；Alternatively, the downlink coverage enhancement project setting currently used to terminal is arrived in base station In the downlink coverage enhancement scheme lower than the coverage enhancement rank residing for present terminal.

Wherein, base station adjusts the operation of the uplink and downlink coverage enhancement scheme currently used to terminal, Ke Yiwei：

Base station will increase the currently used uplink and downlink coverage enhancement project setting of terminal to than the covering residing for present terminal In the not high uplink and downlink coverage enhancement scheme of intensity level；Alternatively, base station is by the uplink and downlink coverage enhancement scheme currently used to terminal It is adjusted in the uplink and downlink coverage enhancement scheme lower than the coverage enhancement rank residing for present terminal.

Wherein, coverage enhancement adjust instruction includes absolute coverage enhancement adjust instruction or opposite coverage enhancement adjust instruction； Base station adjusts the operation of the coverage enhancement scheme currently used to terminal, Ke Yiwei：

If coverage enhancement adjust instruction is absolute coverage enhancement adjust instruction, base station is adjusted according to absolute coverage enhancement Instruction is by the currently used coverage enhancement project setting of terminal to specified coverage enhancement scheme；If coverage enhancement adjusts Instruct for opposite coverage enhancement adjust instruction when, base station is according to the currently used covering of opposite coverage enhancement adjust instruction and terminal Enhanced scheme, by coverage enhancement project setting to specified coverage enhancement scheme.

Further, when terminal, which is sent, confirms adjust instruction to base station, the confirmation adjustment that base station receiving terminal is sent refers to Order, and the coverage enhancement scheme currently used to terminal is adjusted according to the confirmation adjust instruction.

Further, in embodiments of the present invention, base station is determined to adjust the coverage enhancement scheme currently used to terminal When, coverage enhancement adjust instruction can be first sent to terminal, then adjusts the coverage enhancement scheme currently used to terminal.Base station The coverage enhancement scheme currently used to terminal can be first adjusted, the rear coverage enhancement adjust instruction that sends makes terminal root to terminal According to the currently used coverage enhancement scheme of coverage enhancement adjust instruction adjustment terminal.Terminal is adjusted eventually in the embodiment of the present invention Hold currently used coverage enhancement scheme and send coverage enhancement adjust instruction and do not done to the sequencing of terminal the two steps It is specific to limit.

305：Using the coverage enhancement scheme transmission data after adjustment between base station and terminal.

Specifically, base station sends downlink data to terminal using the coverage enhancement scheme after adjustment, after terminal is using adjustment Coverage enhancement scheme receive base station send downlink data；Terminal sends upstream data using the coverage enhancement scheme after adjustment To base station；The upstream data that base station is sent using the coverage enhancement scheme receiving terminal after adjustment.

Embodiment 3

An embodiment of the present invention provides a kind of base station.Referring to Fig. 4, which includes：

Judgment module 401, for judging whether to adjust the coverage enhancement scheme currently used to terminal；

First sending module 402, for if it is determined that module 401 is judged to adjust the coverage enhancement currently used to terminal During scheme, send coverage enhancement adjust instruction includes coverage enhancement type to terminal, the coverage enhancement adjust instruction；Make terminal root According to the currently used coverage enhancement scheme of coverage enhancement adjust instruction adjustment terminal；

First adjustment module 403, for adjusting the coverage enhancement scheme currently used to terminal；

First transport module 404, for using the coverage enhancement scheme transmission data after adjusting.

Further, an embodiment of the present invention provides a kind of base station.Referring to Fig. 5, the wherein base station includes judgment module 401st, the first sending module 402, first adjustment 403 and first transport module 404 of module, which further includes：

First receiving module 405, the confirmation adjust instruction sent for receiving terminal, adjusts according to the confirmation adjust instruction The coverage enhancement scheme currently used to terminal.

Further, judgment module 401, including：

First acquisition unit 4011, sends data for obtaining receiving terminal and is properly received rate；

First judging unit 4012, is properly received whether rate is equal to the first predetermined threshold value for judge data；

First determination unit 4013, if the rate that is properly received for determining data for the first determination unit 4013 is not equal to During the first predetermined threshold value, determine to adjust the coverage enhancement scheme currently used to terminal.

Further, judgment module 401, including：

Second judging unit 4014, for judging whether to receive the coverage enhancement adjust request of terminal transmission；

Second determination unit 4015, if increased for the covering that the second judging unit 4014 is judged to receive terminal transmission During strong adjust request, determine to adjust the coverage enhancement scheme currently used to terminal.

Further, judgment module 401, including：

Second acquisition unit 4016, the uplink loss of data is sent for obtaining terminal；

3rd judging unit 4017, for judging whether uplink loss is equal to the second predetermined threshold value；

3rd determination unit 4018, if judging that uplink loss is default not equal to second for the 3rd judging unit 4017 During threshold value, determine to adjust the coverage enhancement scheme currently used to terminal；

And/or the 3rd acquiring unit 4019, the downlink loss of data is sent for obtaining base station；

4th judging unit 40110, for judging whether downlink loss is equal to the 3rd predetermined threshold value；

4th determination unit 40111, if judging that downlink loss is pre- not equal to the 3rd for the 4th judging unit 40110 If during threshold value, determine to adjust the coverage enhancement scheme currently used to terminal；

And/or the 4th acquiring unit 40112, for obtaining, terminal sends the uplink loss of data and base station sends data Downlink loss；

5th judging unit 40113, for judging whether the absolute value of difference of uplink loss and downlink loss is equal to the Four predetermined threshold values；

5th determination unit 40114, if judging uplink loss and downlink loss for the 5th judging unit 40113 When the absolute value of difference is not equal to four predetermined threshold values, determine to adjust the coverage enhancement scheme currently used to terminal.

Further, second acquisition unit 4016, the uplink loss of data is sent for measuring terminals；

Alternatively, second acquisition unit 4016, the status information sent for receiving terminal, status information are damaged including downlink Consumption；According to status information, downlink loss is obtained；It is lost according to downlink, estimation uplink loss.

Further, the 3rd acquiring unit 4019, the uplink loss of data is sent for measuring terminals；Damaged according to uplink Consumption, estimation downlink loss；

Alternatively, the 3rd acquiring unit 4019, the status information sent for receiving terminal, the status information are damaged including downlink Consumption；According to the status information, downlink loss is obtained.

Further, the 4th acquiring unit 40112, the uplink loss of data is sent for measuring terminals；Damaged according to uplink Consumption, estimation downlink loss；

Alternatively, the 4th acquiring unit 40112, the uplink loss of data is sent for measuring terminals；What receiving terminal was sent Status information, the status information are lost including downlink；It is lost according to the state information acquisition downlink；

Alternatively, the 4th acquiring unit 40112, the status information sent for receiving terminal, the status information include downlink Loss；It is lost according to downlink, estimation uplink loss.

Further, if coverage enhancement type is uplink coverage enhancement, the first sending module 402, for transmission Row coverage enhancement adjust instruction makes terminal adjust the currently used uplink of terminal according to uplink coverage enhancement adjust instruction to terminal Coverage enhancement scheme；

If coverage enhancement type is downlink coverage enhancement, the first sending module 402, for sending downlink coverage enhancement Adjust instruction makes terminal adjust the currently used downlink coverage enhancement side of terminal according to downlink coverage enhancement adjust instruction to terminal Case；

If coverage enhancement type is uplink and downlink coverage enhancement, the first sending module 402, for sending uplink and downlink covering Strengthen adjust instruction to terminal, terminal is adjusted the currently used uplink and downlink of terminal according to uplink and downlink coverage enhancement adjust instruction and cover Lid enhanced scheme.

Further,

If coverage enhancement type is uplink coverage enhancement, the first adjustment module 403, currently makes terminal for adjusting Uplink coverage enhancement scheme；

If coverage enhancement type is downlink coverage enhancement, the first adjustment module 403, currently makes terminal for adjusting Downlink coverage enhancement scheme；

If coverage enhancement type is uplink and downlink coverage enhancement, the first adjustment module 403 is current to terminal for adjusting The uplink and downlink coverage enhancement scheme used.

Further, if coverage enhancement adjust instruction is absolute coverage enhancement adjust instruction, the first sending module 402, for sending absolute coverage enhancement adjust instruction to terminal, terminal is worked as terminal according to absolute coverage enhancement adjust instruction The preceding coverage enhancement project setting used is in specified coverage enhancement scheme；

If coverage enhancement adjust instruction is opposite coverage enhancement adjust instruction, the first sending module 402, for sending With respect to coverage enhancement adjust instruction to terminal, make terminal according to the currently used covering of opposite coverage enhancement adjust instruction and terminal Enhanced scheme, by the currently used coverage enhancement project setting of terminal to specified coverage enhancement scheme.

Further, if coverage enhancement adjust instruction is absolute coverage enhancement adjust instruction, the first adjustment module 403, for the coverage enhancement project setting currently used to terminal to be covered to what is specified according to absolute coverage enhancement adjust instruction In lid enhanced scheme；

If coverage enhancement adjust instruction is opposite coverage enhancement adjust instruction, the first adjustment module 403, for basis The coverage enhancement scheme currently used with respect to coverage enhancement adjust instruction and terminal, by the coverage enhancement side currently used to terminal Case is adjusted in the coverage enhancement scheme specified.

Embodiment 4

An embodiment of the present invention provides a kind of terminal.Referring to Fig. 6, wherein, which includes：

Second receiving module 501, for receiving the coverage enhancement adjust instruction of base station transmission, coverage enhancement adjust instruction bag Include coverage enhancement type；

Second adjustment module 502, for adjusting the currently used coverage enhancement side of terminal according to coverage enhancement adjust instruction Case；

Second transport module 503, for using the coverage enhancement scheme transmission data after adjusting.

Further, an embodiment of the present invention provides a kind of terminal.Referring to Fig. 7, which includes：Second receiving module 501st, 502 and second transport module 503 of second adjustment module, terminal further includes：

Second sending module 504, confirms that adjust instruction to base station, makes base station according to confirmation adjust instruction adjustment for sending The coverage enhancement scheme currently used to terminal.

Further, terminal further includes：

3rd sending module 505, for sending coverage enhancement adjust request to base station, makes base station be asked according to coverage enhancement Judge whether to adjust the coverage enhancement scheme currently used to terminal.

Further, terminal further includes：

4th sending module 506, for sending status information to base station, which includes base station and sends under data Row loss, makes base station be lost according to the state information acquisition downlink.

Further, if coverage enhancement type is uplink coverage enhancement, second adjustment module 502, covers for basis The currently used uplink coverage enhancement scheme of lid enhancing adjust instruction adjustment terminal；

If coverage enhancement type is downlink coverage enhancement, second adjustment module 502, for being adjusted according to coverage enhancement The currently used downlink coverage enhancement scheme of instruction adjustment terminal；

If coverage enhancement type is uplink and downlink coverage enhancement, second adjustment module 502, for according to coverage enhancement tune The currently used uplink and downlink coverage enhancement scheme of whole instruction adjustment terminal.

Further, if coverage enhancement adjust instruction is absolute coverage enhancement adjust instruction, second adjustment module 502, for according to absolute coverage enhancement adjust instruction by the currently used coverage enhancement project setting of terminal to the covering specified In enhanced scheme；

If coverage enhancement adjust instruction is opposite coverage enhancement adjust instruction, second adjustment module 502, for basis The coverage enhancement scheme currently used with respect to coverage enhancement adjust instruction and terminal is by the currently used coverage enhancement scheme of terminal It is adjusted in the coverage enhancement scheme specified.

In embodiments of the present invention, terminal receives the coverage enhancement adjust instruction that base station is sent, and coverage enhancement adjustment refers to Order includes coverage enhancement type；Terminal adjusts the currently used coverage enhancement scheme of terminal according to the coverage enhancement adjust instruction； Terminal is using the coverage enhancement scheme transmission data after adjustment.Coverage enhancement scheme that can be currently used to terminal in the present invention Carry out closed loop adjustment so that the currently used coverage enhancement scheme of terminal disclosure satisfy that terminal requirements, while be capable of providing data Efficiency of transmission.

Embodiment 5

An embodiment of the present invention provides a kind of base station.Referring to Fig. 8, wherein, which includes：First memory 601 and One processor 602, for performing data below transmission method：

Further, the base station adjusts the coverage enhancement scheme currently used to the terminal, including：

Further, the base station judges whether to adjust the coverage enhancement scheme currently used to terminal, including：

The base station obtains the uplink loss that the terminal sends data, and it is pre- to judge whether the uplink loss is equal to second If threshold value, if not, determining to adjust the coverage enhancement scheme currently used to terminal；

Further, the base station obtains the uplink loss that the terminal sends data, including：

Further, the base station obtains the downlink loss that the base station sends data, including：

Further, the base station obtains the terminal and sends under the uplink loss and base station transmission data of data Row loss, including：

Further, the transmission coverage enhancement adjust instruction makes the terminal be increased according to the covering to the terminal Strong adjust instruction adjusts the coverage enhancement scheme, including：

Further, the base station sends coverage enhancement adjust instruction to the terminal, the terminal is covered according to Lid enhancing adjust instruction adjusts the coverage enhancement scheme, including：

If the coverage enhancement adjust instruction is opposite coverage enhancement adjust instruction, the base station is according to described opposite Coverage enhancement adjust instruction and the currently used coverage enhancement scheme of the terminal, the covering currently used to the terminal is increased Strong project setting is in specified coverage enhancement scheme.

Embodiment 6

An embodiment of the present invention provides a kind of terminal.Referring to Fig. 9, wherein, which includes：Second memory 701 and Two processors 702, for performing data below transmission method：

Using the coverage enhancement scheme transmission data after adjustment.

Further, the method further includes：

Further, before the terminal receives the coverage enhancement adjust instruction that base station is sent, the method further includes：

Further, it is described that the coverage enhancement scheme is adjusted according to the coverage enhancement adjust instruction, including：

Further, it is described that the currently used coverage enhancement side of the terminal is adjusted according to the coverage enhancement adjust instruction Case, including：

It should be noted that：Terminal in the present invention is not limited to MTC terminal, and present invention is also not necessarily limited to scenes of internet of things.On State embodiment offer terminal and base station in data transfer, only carried out with the division of above-mentioned each function module for example, real In the application of border, it can be completed as needed and by above-mentioned function distribution by different function modules, i.e., by terminal and base station Portion's structure is divided into different function modules, to complete all or part of function described above.In addition, above-described embodiment carries The terminal of confession and base station belong to same design with data transmission method embodiment, its specific implementation process refers to embodiment of the method, Which is not described herein again.

One of ordinary skill in the art will appreciate that hardware can be passed through by realizing all or part of step of above-described embodiment To complete, relevant hardware can also be instructed to complete by program, the program can be stored in a kind of computer-readable In storage medium, storage medium mentioned above can be read-only storage, disk or CD etc..

The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and Within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention.

Claims

A kind of 1. data transmission method, it is characterised in that the described method includes：

Base station judges whether to adjust the coverage enhancement scheme currently used to terminal；

If so, the base station sends coverage enhancement adjust instruction to the terminal, the coverage enhancement adjust instruction includes covering Lid enhancing type；The terminal is set to adjust the currently used coverage enhancement side of the terminal according to the coverage enhancement adjust instruction Case；

The base station adjusts the coverage enhancement scheme currently used to the terminal, and using the coverage enhancement side after adjustment Case transmits data；

The transmission coverage enhancement adjust instruction makes the terminal be adjusted according to the coverage enhancement adjust instruction to the terminal The coverage enhancement scheme, including：

If the coverage enhancement type is uplink coverage enhancement, uplink coverage enhancement adjust instruction is sent to the terminal, The terminal is set to adjust the currently used uplink coverage enhancement scheme of the terminal according to the uplink coverage enhancement adjust instruction；

If the coverage enhancement type is downlink coverage enhancement, downlink coverage enhancement adjust instruction is sent to the terminal, The terminal is set to adjust the currently used downlink coverage enhancement scheme of the terminal according to the downlink coverage enhancement adjust instruction；

If the coverage enhancement type is uplink and downlink coverage enhancement, uplink and downlink coverage enhancement adjust instruction is sent to the end End, makes the terminal adjust the currently used uplink and downlink of the terminal according to the uplink and downlink coverage enhancement adjust instruction and cover and increases Strong scheme；

If the coverage enhancement adjust instruction is absolute coverage enhancement adjust instruction, the base station sends the definitely covering Enhancing adjust instruction gives the terminal, the terminal is currently made the terminal according to the definitely coverage enhancement adjust instruction Coverage enhancement project setting is in specified coverage enhancement scheme；

If the coverage enhancement adjust instruction is opposite coverage enhancement adjust instruction, the base station sends the opposite covering Enhancing adjust instruction gives the terminal, the terminal is currently made according to the opposite coverage enhancement adjust instruction and the terminal Coverage enhancement scheme, by the currently used coverage enhancement project setting of the terminal to specified coverage enhancement scheme.
2. the method as described in claim 1, it is characterised in that the base station adjusts the covering currently used to the terminal and increases Strong scheme, including：

The base station receives the confirmation adjust instruction that the terminal is sent, according to the confirmation adjust instruction adjustment to the terminal Currently used coverage enhancement scheme.
3. the method as described in claim 1, it is characterised in that the base station judges whether that adjustment is currently used to terminal and covers Lid enhanced scheme, including：

The base station acquisition reception terminal transmission data are properly received rate；

Judge the data is properly received whether rate is equal to the first predetermined threshold value；

If not, determine to adjust the coverage enhancement scheme currently used to the terminal.
4. the method as described in claim 1, it is characterised in that the base station judges whether that adjustment is currently used to terminal and covers Lid enhanced scheme, including：

The base station judges whether to receive the coverage enhancement adjust request that the terminal is sent；

If so, determine to adjust the coverage enhancement scheme currently used to the terminal.
5. the method as described in claim 1, it is characterised in that the base station judges whether that adjustment is currently used to terminal and covers Lid enhanced scheme, including：

The base station obtains the uplink loss that the terminal sends data, judges whether the uplink loss is equal to the second default threshold Value, if not, determining to adjust the coverage enhancement scheme currently used to the terminal；

And/or the base station obtains the downlink loss that the base station sends data, judge whether the downlink loss is equal to the 3rd Predetermined threshold value, if not, determining to adjust the coverage enhancement scheme currently used to the terminal；

And/or the base station obtains the downlink loss that the terminal sends the uplink loss of data and the base station sends data, Judge whether the absolute value of the difference of the uplink loss and downlink loss is equal to the 4th predetermined threshold value, if not, determining Go out the adjustment coverage enhancement scheme currently used to the terminal.
6. method as claimed in claim 5, it is characterised in that the base station obtains the uplink damage that the terminal sends data Consumption, including：

Terminal described in the base station measurement sends the uplink loss of data；

Alternatively, the base station receives the status information that the terminal is sent, the status information is lost including the downlink, according to The status information, obtains the downlink loss, is lost according to the downlink, estimates the uplink loss.
7. method as claimed in claim 5, it is characterised in that the base station obtains the downlink damage that the base station sends data Consumption, including：

Terminal described in the base station measurement sends the uplink loss of data, is lost according to the uplink, estimates the downlink loss；

Alternatively, the base station receives the status information that the terminal is sent, the status information is lost including the downlink, according to The status information, obtains the downlink loss.
8. method as claimed in claim 5, it is characterised in that the base station obtains the uplink loss that the terminal sends data The downlink loss of data is sent with the base station, including：

Terminal described in the base station measurement sends the uplink loss of data, is lost according to the uplink, estimates the downlink loss；

Alternatively, terminal described in the base station measurement sends the uplink loss of data, the base station receives the shape that the terminal is sent State information, the status information are lost including the downlink, are lost according to downlink described in the state information acquisition；

Alternatively, the base station receives the status information that the terminal is sent, the status information is lost including the downlink, according to The downlink loss, estimates the uplink loss.
9. the method as described in claim 1, it is characterised in that the base station adjusts the covering currently used to the terminal and increases Strong scheme, including：

If the coverage enhancement type is uplink coverage enhancement, the base station adjusts the uplink currently used to the terminal Coverage enhancement scheme；

If the coverage enhancement type is downlink coverage enhancement, the base station adjusts the downlink currently used to the terminal Coverage enhancement scheme；

If the coverage enhancement type is uplink and downlink coverage enhancement, the base station adjusts currently used to the terminal upper Downlink coverage enhancement scheme.
10. the method as described in claim 1, it is characterised in that the base station adjusts the covering currently used to the terminal Enhanced scheme, including：

If the coverage enhancement adjust instruction is absolute coverage enhancement adjust instruction, the base station is according to the definitely covering Strengthen adjust instruction by the currently used coverage enhancement project setting of the terminal to specified coverage enhancement scheme；

If the coverage enhancement adjust instruction is opposite coverage enhancement adjust instruction, the base station is according to the opposite covering Strengthen adjust instruction and the currently used coverage enhancement scheme of the terminal, by the coverage enhancement project setting to specifying In coverage enhancement scheme.
A kind of 11. data transmission method, it is characterised in that the described method includes：

Terminal receives the coverage enhancement adjust instruction that base station is sent, and the coverage enhancement adjust instruction includes coverage enhancement type；

The currently used coverage enhancement scheme of the terminal is adjusted according to the coverage enhancement adjust instruction；

Using the coverage enhancement scheme transmission data after adjustment；

It is described that the coverage enhancement scheme is adjusted according to the coverage enhancement adjust instruction, including：

If the coverage enhancement type is uplink coverage enhancement, the terminal is adjusted according to the coverage enhancement adjust instruction Currently used uplink coverage enhancement scheme；

If the coverage enhancement type is downlink coverage enhancement, the terminal is adjusted according to the coverage enhancement adjust instruction Currently used downlink coverage enhancement scheme；

If the coverage enhancement type is uplink and downlink coverage enhancement, the end is adjusted according to the coverage enhancement adjust instruction Hold currently used uplink and downlink coverage enhancement scheme；

If the coverage enhancement adjust instruction is absolute coverage enhancement adjust instruction, adjusted according to the definitely coverage enhancement Instruction is by the currently used coverage enhancement project setting of the terminal to specified coverage enhancement scheme；

If the coverage enhancement adjust instruction is opposite coverage enhancement adjust instruction, adjusted according to the opposite coverage enhancement Instruction and the currently used coverage enhancement scheme of the terminal by the currently used coverage enhancement project setting of the terminal to finger In fixed coverage enhancement scheme.
12. method as claimed in claim 11, it is characterised in that the method further includes：

The terminal, which is sent, confirms that adjust instruction to the base station, makes the base station according to the confirmation adjust instruction adjustment to institute State the currently used coverage enhancement scheme of terminal.
13. method as claimed in claim 11, it is characterised in that the terminal receives the coverage enhancement adjustment that base station is sent and refers to Before order, the method further includes：

The terminal sends coverage enhancement adjust request to the base station, makes the base station ask to judge according to the coverage enhancement Whether to the terminal currently used coverage enhancement scheme is adjusted.
14. method as claimed in claim 11, it is characterised in that the terminal receives the coverage enhancement adjustment that base station is sent and refers to Before order, the method further includes：

The terminal sends status information to the base station, and the status information includes the downlink damage that the base station sends data Consumption, is lost base station downlink according to the state information acquisition.
15. a kind of base station, it is characterised in that the base station includes：

Judgment module, for judging whether to adjust the coverage enhancement scheme currently used to terminal；

First sending module, if judging to adjust the coverage enhancement scheme currently used to terminal for the judgment module When, send coverage enhancement adjust instruction includes coverage enhancement type to the terminal, the coverage enhancement adjust instruction；Make described Terminal adjusts the currently used coverage enhancement scheme of the terminal according to the coverage enhancement adjust instruction；

First adjustment module, for adjusting the coverage enhancement scheme currently used to the terminal；

First transport module, for using the coverage enhancement scheme transmission data after adjusting；

If the coverage enhancement type is uplink coverage enhancement, first sending module, increases for sending uplink covering Strong adjust instruction gives the terminal, and the terminal is adjusted the terminal according to the uplink coverage enhancement adjust instruction currently makes Uplink coverage enhancement scheme；

If the coverage enhancement type is downlink coverage enhancement, first sending module, increases for sending downlink covering Strong adjust instruction gives the terminal, and the terminal is adjusted the terminal according to the downlink coverage enhancement adjust instruction currently makes Downlink coverage enhancement scheme；

If the coverage enhancement type is uplink and downlink coverage enhancement, first sending module, covers for sending uplink and downlink Lid enhancing adjust instruction gives the terminal, the terminal is adjusted the terminal according to the uplink and downlink coverage enhancement adjust instruction Currently used uplink and downlink coverage enhancement scheme；

If the coverage enhancement adjust instruction is absolute coverage enhancement adjust instruction, first sending module, for sending out The definitely coverage enhancement adjust instruction is sent to make the terminal will according to the definitely coverage enhancement adjust instruction to the terminal The currently used coverage enhancement project setting of the terminal is in specified coverage enhancement scheme；

If the coverage enhancement adjust instruction is opposite coverage enhancement adjust instruction, first sending module, for sending out The opposite coverage enhancement adjust instruction is sent to the terminal, make the terminal according to the opposite coverage enhancement adjust instruction with The currently used coverage enhancement scheme of the terminal, the currently used coverage enhancement project setting of the terminal is covered to what is specified In lid enhanced scheme.
16. base station as claimed in claim 15, it is characterised in that the base station further includes：

First receiving module, the confirmation adjust instruction sent for receiving the terminal, according to the confirmation adjust instruction adjustment The coverage enhancement scheme currently used to the terminal.
17. base station as claimed in claim 15, it is characterised in that the judgment module, including：

First acquisition unit, rate is properly received for the acquisition reception terminal transmission data；

First judging unit, is properly received whether rate is equal to the first predetermined threshold value for judge the data；

First determination unit, if being properly received rate not equal to described for what first determination unit determined the data During the first predetermined threshold value, determine to adjust the coverage enhancement scheme currently used to the terminal.
18. base station as claimed in claim 15, it is characterised in that the judgment module, including：

Second judging unit, the coverage enhancement adjust request sent for judging whether to receive the terminal；

Second determination unit, if judging to receive the coverage enhancement tune of the terminal transmission for second judging unit During whole request, determine to adjust the coverage enhancement scheme currently used to the terminal.
19. base station as claimed in claim 15, it is characterised in that the judgment module, including：

Second acquisition unit, the uplink loss of data is sent for obtaining the terminal；

3rd judging unit, for judging whether the uplink loss is equal to the second predetermined threshold value；

3rd determination unit, if judging that the uplink loss is default not equal to described second for the 3rd judging unit During threshold value, determine to adjust the coverage enhancement scheme currently used to the terminal；

And/or the 3rd acquiring unit, the downlink loss of data is sent for obtaining the base station；

4th judging unit, for judging whether the downlink loss is equal to the 3rd predetermined threshold value；

4th determination unit, if judging that the downlink loss is default not equal to the described 3rd for the 4th judging unit During threshold value, determine to adjust the coverage enhancement scheme currently used to the terminal；

And/or the 4th acquiring unit, for obtaining, the terminal sends the uplink loss of data and the base station sends data Downlink is lost；

5th judging unit, for judging whether the absolute value of difference of the uplink loss and downlink loss is equal to the 4th Predetermined threshold value；

5th determination unit, if judging the difference of the uplink loss and downlink loss for the 5th judging unit When the absolute value of value is not equal to four predetermined threshold value, determine to adjust the coverage enhancement side currently used to the terminal Case.
20. base station as claimed in claim 19, it is characterised in that

The second acquisition unit, the uplink loss of data is sent for measuring the terminal；

Alternatively, the second acquisition unit, the status information sent for receiving the terminal, the status information includes described Downlink is lost；According to the status information, the downlink loss is obtained；It is lost according to the downlink, estimates the uplink loss.
21. base station as claimed in claim 19, it is characterised in that

3rd acquiring unit, the uplink loss of data is sent for measuring the terminal；It is lost according to the uplink, estimation The downlink loss；

Alternatively, the 3rd acquiring unit, the status information sent for receiving the terminal, the status information includes described Downlink is lost；According to the status information, the downlink loss is obtained.
22. base station as claimed in claim 19, it is characterised in that

4th acquiring unit, the uplink loss of data is sent for measuring the terminal；It is lost according to the uplink, estimation The downlink loss；

Alternatively, the 4th acquiring unit, the uplink loss of data is sent for measuring the terminal；The terminal is received to send Status information, the status information include the downlink loss；It is lost according to downlink described in the state information acquisition；

Alternatively, the 4th acquiring unit, the status information sent for receiving the terminal, the status information includes described Downlink is lost；It is lost according to the downlink, estimates the uplink loss.
23. base station as claimed in claim 15, it is characterised in that

If the coverage enhancement type is uplink coverage enhancement, the first adjustment module, for adjusting to the terminal Currently used uplink coverage enhancement scheme；

If the coverage enhancement type is downlink coverage enhancement, the first adjustment module, for adjusting to the terminal Currently used downlink coverage enhancement scheme；

If the coverage enhancement type is uplink and downlink coverage enhancement, the first adjustment module, for adjusting to the end Hold currently used uplink and downlink coverage enhancement scheme.
24. base station as claimed in claim 15, it is characterised in that

If the coverage enhancement adjust instruction is absolute coverage enhancement adjust instruction, the first adjustment module, for root According to the definitely coverage enhancement adjust instruction by the currently used coverage enhancement project setting of the terminal to the covering specified In enhanced scheme；

If the coverage enhancement adjust instruction is opposite coverage enhancement adjust instruction, the first adjustment module, for root According to the currently used coverage enhancement scheme of the opposite coverage enhancement adjust instruction and the terminal, the terminal will currently be made Coverage enhancement project setting is in specified coverage enhancement scheme.
25. a kind of terminal, it is characterised in that the terminal includes：

Second receiving module, for receiving the coverage enhancement adjust instruction of base station transmission, the coverage enhancement adjust instruction includes Coverage enhancement type；

Second adjustment module, for adjusting the currently used coverage enhancement side of the terminal according to the coverage enhancement adjust instruction Case；

Second transport module, for using the coverage enhancement scheme transmission data after adjusting；

If the coverage enhancement type is uplink coverage enhancement, the second adjustment module, for being increased according to the covering Strong adjust instruction adjusts the currently used uplink coverage enhancement scheme of the terminal；

If the coverage enhancement type is downlink coverage enhancement, the second adjustment module, for being increased according to the covering Strong adjust instruction adjusts the currently used downlink coverage enhancement scheme of the terminal；

If the coverage enhancement type is uplink and downlink coverage enhancement, the second adjustment module, for according to the covering Strengthen adjust instruction and adjust the currently used uplink and downlink coverage enhancement scheme of the terminal；

If the coverage enhancement adjust instruction is absolute coverage enhancement adjust instruction, the second adjustment module, for root The currently used coverage enhancement project setting of the terminal is increased to the covering specified according to the definitely coverage enhancement adjust instruction In strong scheme；

If the coverage enhancement adjust instruction is opposite coverage enhancement adjust instruction, the second adjustment module, for root It is according to the opposite coverage enhancement adjust instruction and the terminal currently used coverage enhancement scheme that the terminal is currently used Coverage enhancement project setting in specified coverage enhancement scheme.
26. terminal as claimed in claim 25, it is characterised in that the terminal further includes：

Second sending module, confirms that adjust instruction to the base station, makes the base station refer to according to the confirmation adjustment for sending Order adjusts the coverage enhancement scheme currently used to the terminal.
27. terminal as claimed in claim 25, it is characterised in that the terminal further includes：

3rd sending module, for sending coverage enhancement adjust request to the base station, makes the base station be increased according to the covering Strong request judges whether to adjust the coverage enhancement scheme currently used to the terminal.
28. terminal as claimed in claim 25, it is characterised in that the terminal further includes：

4th sending module, for sending status information to the base station, the status information includes the base station and sends data Downlink loss, make the base station according to the state information acquisition downlink be lost.
29. a kind of base station, it is characterised in that the base station includes：First memory and first processor, for performing such as right It is required that the data transmission method described in 1-10 any claims.
30. a kind of terminal, it is characterised in that the terminal includes：Second memory and second processor, for performing such as right It is required that the data transmission method described in 11-14 any claims.