CN104811411A

CN104811411A - Data transmission method, device and system

Info

Publication number: CN104811411A
Application number: CN201410037860.2A
Authority: CN
Inventors: 李正茂; 黄宇红; 胡臻平; 沈晓冬; 李男; 侯雪颖
Original assignee: China Mobile Communications Group Co Ltd
Current assignee: China Mobile Communications Group Co Ltd
Priority date: 2014-01-26
Filing date: 2014-01-26
Publication date: 2015-07-29
Anticipated expiration: 2034-01-26
Also published as: CN104811411B

Abstract

The invention belongs to the mobile communication technical field and relates to a data transmission method, a device and a system. According to an existing base station, a terminal which is incapable of simultaneously supporting time division duplex (TDD)-frequency division duplex (FDD) uplink and downlink carrier aggregation adopts a time division duplex (TDD)-frequency division duplex (FDD) carrier aggregation scheme, and as a result, a problem of serious uplink and downlink inference can be brought about, while, with the data transmission method, device and system of the invention adopted, the above problem can be solved. According to one embodiment of the invention, the method includes the following steps that: a terminal reports information about supporting combined frequency band and information about supporting simultaneous uplink and downlink transmission on the combined frequency band to a network side; and the terminal transmits data to the network side according to a carrier aggregation scheme determined by the network side. According to the method, the network side determines the carrier aggregation scheme of data transmission according to the two kinds of information reported by the terminal, and therefore, with the method of the invention adopted, the problem of serious uplink and downlink inference which is brought about by a situation in which the terminal which is incapable of simultaneously supporting time division duplex (TDD) and frequency division duplex (FDD) uplink and downlink carrier aggregation adopts the carrier aggregation scheme to perform transmission can be solved.

Description

A kind of method, apparatus and system of transfer of data

Technical field

The present invention relates to mobile communication technology, particularly relate to a kind of method, apparatus and system of transfer of data.

Background technology

As compared to Long Term Evolution (Long Term Evolution, LTE) system, in LTE evolution (LTE-Advanced, LTE-A) system, need to use wider frequency range.In order to the frequency resource of each frequency range is integrated, third generation partner program (The3rd Generation Partnership Project, 3GPP) propose: in lte-a system, by adopting carrier aggregation (Carrier Aggregation, CA) technology, reduce the redundancy of mobile communications network, improve the throughput efficiency of mobile communications network further.

At present, 3GPP LTE standard design in carrier aggregation technology evolution path as shown in Figure 1.At version (Release) 8, realize single carrier 20MHz and communicate; At Release10, realize (Intra-band) multi-carrier polymerizing in frequency range; At Release11, realize (Inter-band) multi-carrier polymerizing between frequency range, and support different time division duplex (Time Division Duplexing, TDD) time slot proportion; At Release12, realize TDD+ Frequency Division Duplexing (FDD) (Frequency Division Duplexing, FDD) carrier aggregation, and support that multithread is polymerized (Multiple-Stream Agrregation, MSA), at Release13 and later version, be supported in unauthorized frequency range and adopt LTE protocol to communicate.

In version Release10 and Release11 that LTE has completed, mainly contain two kinds of carrier aggregation scenes, a kind of be in same frequency range continuous carrier polymerization.Another kind is the discontinuous carrier polymerization between different frequency range.For the discontinuous carrier aggregation scene between different frequency range, discontinuous carrier between its frequency range being only applicable to identical duplex mode is polymerized, namely time division duplex (TDD is only supported, Time divisionduplex) frequency range be polymerized with TDD frequency range, or the frequency range of Frequency Division Duplexing (FDD) (FDD, Frequency divisionduplex) is polymerized with FDD frequency range.And do not support that the discontinuous carrier between the frequency range of different duplex mode is polymerized, being i.e. polymerized of TDD frequency range and FDD frequency range.For the scene of the discontinuous carrier polymerization between different frequency range, if carrier aggregation technology can be adopted to the frequency range of different duplex mode, then more rationally and farthest frequency spectrum resource can be utilized.

Therefore, not yet freeze at present at Release12() in, introduce the scheme that TDD and FDD carrier wave carries out carrier aggregation, to more effectively frequency resource can be utilized.But TDD and FDD carrier wave carries out carrier aggregation, have higher requirement to the transmittability of terminal, not all terminal can support TDD-FDD carrier aggregation.If base station to the scheme not supporting the terminal of TDD-FDD carrier aggregation to adopt TDD-FDD carrier aggregation, then may cause carrying out in the process of transfer of data with this terminal, there is larger up-downgoing interference, affect communication quality.

Summary of the invention

The embodiment of the present invention provides a kind of method, apparatus and system of transfer of data, in order to solve existing base station to the scheme that the terminal of TDD-FDD uplink and downlink carrier aggregation can not be supported to adopt TDD-FDD carrier aggregation simultaneously, cause the problem that larger up-downgoing is disturbed.In the method for a kind of transfer of data provided in the embodiment of the present invention, terminal reports to network side and supports combination band information, described support combination band information is used to indicate the first communication standard of described terminal support and the combination frequency range of second communication standard, the combination frequency range that described terminal pins is supported each terminal, reports the tenability information of simultaneously carrying out uplink and downlink transfer in this combination frequency range respectively to network side; The carrier aggregation scheme that described terminal is determined according to described network side, carries out transfer of data with network side, and wherein, described carrier aggregation scheme is that described network side is determined according to the described support combination band information of described terminal to report and described tenability information.In the method, because terminal has reported above-mentioned support combination band information and tenability information to network side, network side determines the carrier aggregation scheme of carrying out transfer of data according to above-mentioned two kinds of information of terminal to report, can avoid in prior art the terminal of carrier aggregation can not supporting the first communication standard frequency range and the uplink and downlink of second communication standard frequency range simultaneously, when adopting carrier aggregation scheme to transmit, there is larger up-downgoing interference, affect the problem of communication quality.

First aspect, the embodiment of the present invention provides a kind of method of transfer of data, and described method comprises:

Terminal reports to network side and supports combination band information, described support combination band information is used to indicate the first communication standard of described terminal support and the combination frequency range of second communication standard, the described combination frequency range that described terminal pins is supported terminal described in each, reports described terminal in this combination frequency range, carry out the tenability information of uplink and downlink transfer respectively to network side simultaneously;

The carrier aggregation scheme that described terminal is determined according to described network side and described network side carry out transfer of data, wherein, described carrier aggregation scheme is that described network side is determined according to the described support combination band information of described terminal to report and described tenability information

Adopt the program, because terminal has reported above-mentioned support combination band information and tenability information to network side, make network side can determine to carry out according to above-mentioned two kinds of information of terminal to report the carrier aggregation scheme of transfer of data, can avoid in prior art the terminal of carrier aggregation can not supporting the first communication standard frequency range and the uplink and downlink of second communication standard frequency range simultaneously, when adopting carrier aggregation scheme to transmit, there is larger up-downgoing interference, affect the problem of communication quality.

Preferably, described tenability information comprises the one in following ability information:

Support that the first communication standard frequency range is descending to transmit with second communication standard frequency range is up simultaneously, and support the descending the first ability information simultaneously transmitted up with the first communication standard frequency range of second communication standard frequency range;

Support that the first communication standard frequency range is descending to transmit with second communication standard frequency range is up simultaneously, but do not support the descending the second ability information simultaneously transmitted up with the first communication standard frequency range of second communication standard frequency range;

Do not support that the first communication standard frequency range is descending to transmit with second communication standard frequency range is up simultaneously, but support descending three ability information simultaneously transmitted up with the first communication standard frequency range of second communication standard frequency range;

Neither support that the first communication standard frequency range is descending to transmit with second communication standard frequency range is up simultaneously, also do not support descending four ability information simultaneously transmitted up with the first communication standard frequency range of second communication standard frequency range.

In this preferred version, tenability information comprises four kinds of ability information, network side can above-mentioned four kinds of ability information of reporting of distinguishing terminal, determine the carrier aggregation scheme of carrying out transfer of data with terminal, carrier aggregation scheme can more accurately be mated with the tenability of terminal.

Preferably, described terminal reports described tenability information to network side, comprising:

Described terminal sends the first cell IE to described network side, four kinds of different values corresponding described the first ability information, described the second ability information, described 3rd ability information and described 4th ability information respectively of a described IE; Or

Described terminal sends the 2nd IE to described network side, the different values of two kinds of described 2nd IE corresponding described the first ability information and the 5th ability information respectively, wherein said 5th ability information is used to indicate described tenability information and comprises one in described the second ability information, the 3rd ability information and the 4th ability information;

If corresponding described 5th ability information of described 2nd IE, then described terminal reports tenability information to described combination frequency range to network side, also comprise: described terminal sends different value corresponding described the second ability information, described 3rd ability information and described 4th ability information respectively of the 3rd IE, described 3rd IE three kinds to described network side.

In this preferred version, adopt the mode reporting an IE, realize simple; Adopt the mode reporting the 2nd IE and the 3rd IE, when the corresponding the first ability information of the value of the 2nd IE, network side only can read the 2nd IE, without the need to reading the 3rd IE.

Preferably, after described terminal reports support combination band information to described network side, before carrying out transfer of data with described network side, described method also comprises:

Described terminal receives described network side from described network side and supports available combination band information that combination band information is determined, the spendable combination frequency range of described terminal according to described;

Described terminal carries out transfer of data according to described carrier aggregation scheme and described network side, comprising:

In the combination frequency range that described terminal indicates at described available combination band information, carry out transfer of data according to described carrier aggregation scheme and described network side.

In this preferred version, terminal can close radio-frequency channel corresponding to not spendable combination frequency range, to reach power saving and to reduce interference object, and only can carry out downstream signal due to terminal in the spendable combination frequency range received to detect and upward signal transmission, the processing load of terminal can be reduced, improve its treatment effeciency.

Preferably, described first communication standard comprises: time division multiplexing TDD communication standard; Described second communication standard comprises: frequency division multiplexing FDD communication standard.

In this preferred version, limiting the first communication standard is TDD communication standard, and second communication standard is FDD communication standard, solves the up-downgoing occurred in existing TDD-FDD carrier aggregation and disturbs larger problem.

Second aspect, the embodiment of the present invention provides the method for another kind of transfer of data, and described method comprises:

The support combination band information that network side receiving terminal reports, described support combination band information is used to indicate the first communication standard of described terminal support and the combination frequency range of second communication standard, and described network side receives that the described combination frequency range of described terminal pins to terminal support described in each reports, that described terminal carries out uplink and downlink transfer in described combination frequency range simultaneously tenability information;

Described network side, according to the described support combination band information received and described tenability information, determines the carrier aggregation scheme of carrying out transfer of data with described terminal;

Described network side, according to the described carrier aggregation scheme determined, carries out transfer of data with described terminal.

Preferably, described network side receives the described tenability information of described terminal to report, comprising:

Described network side receives the first cell IE that described terminal sends, four kinds of different values corresponding described the first ability information, described the second ability information, described 3rd ability information and described 4th ability information respectively of a described IE; Or

Described network side receives the 2nd IE that described terminal sends, the different values of two kinds of described 2nd IE corresponding described the first ability information and the 5th ability information respectively, wherein said 5th ability information is used to indicate described tenability information and comprises one in described the second ability information, described 3rd ability information and described 4th ability information;

If corresponding described 5th ability information of described 2nd IE, then described network side receives the described tenability information of described terminal to report, also comprise: described network side receives the 3rd IE that described terminal sends, value corresponding described the second ability information, described 3rd ability information and described 4th ability information respectively that three kinds of described 3rd IE are different.

In this preferred version, adopt the mode of reception the one IE, realize simple; Adopt the mode of reception the 2nd IE and the 3rd IE, when the corresponding the first ability information of the value of the 2nd IE, network side only can read the 2nd IE, without the need to reading the 3rd IE.

Preferably, described network side, according to the described support combination band information received and described tenability information, is determined the carrier aggregation scheme of carrying out transfer of data with described terminal, being comprised:

Described network side, according to the described support combination band information received, is determined to carry out the spendable combination frequency range of transfer of data with described terminal;

Described network side is according to the described spendable combination frequency range determined, determine the target carrier of carrying out transfer of data use with described terminal, and according to the described tenability information for spendable combination frequency range belonging to target carrier of described terminal to report, determine the target carrier transmission plan carrying out transfer of data in target carrier with described terminal.

This preferred version provides the embodiment that network side determines the carrier aggregation scheme of carrying out transfer of data with terminal.

Preferably, described network side determines described target carrier transmission plan, comprising:

If described tenability information corresponding to the spendable combination frequency range belonging to target carrier comprises the first ability information, then network side is determined to use this target carrier and described terminal to carry out up-downgoing transfer of data.

This preferred version gives when the tenability information of terminal to report comprises the first ability information, the method for network side determination carrier aggregation scheme.

Preferably, described network side determines described target carrier transmission plan, comprising: if described tenability information corresponding to the spendable combination frequency range belonging to target carrier comprises the second ability information,

When the target carrier of use first communication standard frequency range is as main carrier, when the target carrier of second communication standard frequency range is as auxiliary carrier wave,

Described network side is determined to use the target carrier of the target carrier of the first communication standard frequency range and second communication standard frequency range and described terminal to carry out transmitting uplink data; The target carrier of the first communication standard frequency range and described terminal can be used to carry out downlink data transmission; Subframe and the described terminal of target carrier that can use second communication standard frequency range, that do not conflict with the first communication standard frequency range transmitting uplink data carry out downlink data transmission;

When using the target carrier of second communication standard frequency range as main carrier, when the target carrier of the first communication standard frequency range is as auxiliary carrier wave,

Described network side is determined to use the target carrier of second communication standard frequency range and described terminal to carry out transmitting uplink data, the target carrier of the target carrier of the first communication standard frequency range and second communication standard frequency range and described terminal can be used to carry out downlink data transmission, and subframe and the described terminal of target carrier that can use the first communication standard frequency range, that do not conflict with the downlink data transmission of second communication standard frequency range carrier wave carry out transmitting uplink data.

This preferred version gives when the tenability information of terminal to report comprises the second ability information, the method for network side determination carrier aggregation scheme.

Preferably, described network side determines described target carrier transmission plan, comprising: if described tenability information comprises the 3rd ability information,

When the target carrier of use first communication standard frequency range is as main carrier, when using the target carrier of second communication standard frequency range as auxiliary carrier wave,

Described network side is determined to use the target carrier of the target carrier of the first communication standard frequency range and second communication standard frequency range to carry out downlink data transmission with described terminal respectively; The target carrier of the first communication standard frequency range and described terminal can be used to carry out transmitting uplink data; Subframe and the described terminal of target carrier that can use second communication standard frequency range, that do not conflict with the first communication standard frequency range downlink data transmission carry out transmitting uplink data;

When using the target carrier of second communication standard frequency range as main carrier, when using the target carrier of the first communication standard frequency range as auxiliary carrier wave,

Described network side is determined to use the target carrier of second communication standard frequency range and described terminal to carry out downlink data transmission, the target carrier of the target carrier of the first communication standard frequency range and second communication standard frequency range and described terminal can be used to carry out transmitting uplink data, the target carrier of the first communication standard frequency range and described terminal can not be used to carry out downlink data transmission; Or

Described network side is determined to use the target carrier of the first communication standard frequency range and described terminal to carry out transmitting uplink data, the target carrier of the target carrier of the first communication standard frequency range and second communication standard frequency range and described terminal can be used to carry out downlink data transmission, and subframe and the described terminal of target carrier that can use second communication standard frequency range, that do not conflict with the downlink data transmission of the first communication standard frequency range carry out transmitting uplink data.

This preferred version gives when the tenability information of terminal to report comprises the 3rd ability information, the method for network side determination carrier aggregation scheme.

Preferably, described network side determines described target carrier transmission plan, comprising: if described tenability information comprises the 4th ability information,

Described network side is determined to use the target carrier of the first communication standard frequency range and described terminal to carry out uplink and downlink transfer of data; Subframe and the described terminal of target carrier that can use second communication standard frequency range, that do not conflict with the first communication standard frequency range transmitting uplink data carry out downlink data transmission; Subframe and the described terminal of target carrier that can use second communication standard frequency range, that do not conflict with the first communication standard frequency range downlink data transmission carry out transmitting uplink data;

Described network side is determined to use the target carrier of second communication standard frequency range and described terminal to carry out uplink and downlink transfer of data; The target carrier of the first communication standard frequency range and described terminal can not be used to carry out upstream or downstream transfer of data; Or

Described network side is determined to use the target carrier of the first communication standard frequency range and described terminal to carry out uplink and downlink transfer of data, and subframe and the described terminal of target carrier that can use second communication standard frequency range, that do not conflict with the first communication standard frequency range transmitting uplink data carry out downlink data transmission; Subframe and the described terminal of target carrier that can use second communication standard frequency range, that do not conflict with the first communication standard frequency range downlink data transmission carry out transmitting uplink data.

This preferred version gives when the tenability information of terminal to report comprises the 4th ability information, the method for network side determination carrier aggregation scheme.

Preferably, after described network side determines described spendable combination frequency range, before carrying out transfer of data with described terminal, described method also comprises:

Described network side sends the available combination band information being used to indicate described spendable combination frequency range to described terminal, to make described terminal determine described spendable combination frequency range according to the described available combination band information received, and carry out transfer of data with described network side in the described spendable combination frequency range determined;

Described network side, according to the described carrier aggregation scheme determined, carries out transfer of data with described terminal, comprising:

Described network side, in described spendable combination frequency range, according to the described carrier aggregation scheme determined, carries out transfer of data with described terminal.

The third aspect, the embodiment of the present invention provides a kind of terminal, and described terminal comprises:

Processing module, combination band information is supported for reporting to network side, described support combination band information is used to indicate the first communication standard of described terminal support and the combination frequency range of second communication standard, for the described combination frequency range that terminal described in each is supported, report described terminal in this combination frequency range, carry out the tenability information of uplink and downlink transfer respectively to network side simultaneously;

Data transmission module, carry out transfer of data for the carrier aggregation scheme determined according to described network side and described network side, the wherein said carrier aggregation scheme described support combination band information that to be described network side report according to described processing module and described tenability information are determined.

Preferably, described processing module specifically for:

The first cell IE is sent, four kinds of different values corresponding described the first ability information, described the second ability information, described 3rd ability information and described 4th ability information respectively of a described IE to described network side; Or

The 2nd IE is sent to described network side, the different values of two kinds of described 2nd IE corresponding described the first ability information and the 5th ability information respectively, wherein said 5th ability information is used to indicate described tenability information and comprises one in described the second ability information, the 3rd ability information and the 4th ability information;

If corresponding described 5th ability information of described 2nd IE, then described processing module also for: send different value corresponding described the second ability information, described 3rd ability information and described 4th ability information respectively of the 3rd IE, described 3rd IE three kinds to described network side.

Preferably, described processing module also for: report to described network side support combination band information after, before described data transmission module and described network side carry out transfer of data, receive described network side from described network side and support available combination band information that combination band information is determined, the spendable combination frequency range of described terminal according to described;

Described data transmission module specifically for: in the combination frequency range of the described available combination band information instruction received in described processing module, carry out transfer of data according to described carrier aggregation scheme and described network side.

Fourth aspect, the embodiment of the present invention provides a kind of network equipment, and described network equipment comprises:

Processing module, for the support combination band information that receiving terminal reports, described support combination band information is used to indicate the first communication standard of described terminal support and the combination frequency range of second communication standard, receives that the described combination frequency range of described terminal pins to terminal support described in each reports, that described terminal carries out uplink and downlink transfer in described combination frequency range simultaneously tenability information; And according to the described support combination band information received and described tenability information, determine the carrier aggregation scheme of carrying out transfer of data with described terminal;

Data transmission module, for the described carrier aggregation scheme determined according to described processing module, carries out transfer of data with described terminal.

Preferably, described processing module specifically for:

Receive the first cell IE that described terminal sends, four kinds of different values corresponding described the first ability information, described the second ability information, described 3rd ability information and described 4th ability information respectively of a described IE; Or

Receive the 2nd IE that described terminal sends, the different values of two kinds of described 2nd IE corresponding described the first ability information and the 5th ability information respectively, wherein said 5th ability information is used to indicate described tenability information and comprises one in described the second ability information, described 3rd ability information and described 4th ability information;

Preferably, described processing module when determining to carry out the carrier aggregation scheme of transfer of data with described terminal, specifically for:

Described processing module, according to the described support combination band information received, is determined to carry out the spendable combination frequency range of transfer of data with described terminal;

Described processing module is according to the described spendable combination frequency range determined, determine the target carrier of carrying out transfer of data use with described terminal, and according to the described tenability information for spendable combination frequency range belonging to target carrier of described terminal to report, determine the target carrier transmission plan carrying out transfer of data in target carrier with described terminal.

Preferably, described processing module when determining described target carrier transmission plan, specifically for:

If described tenability information corresponding to the spendable combination frequency range belonging to target carrier comprises the first ability information, then determine to use this target carrier and described terminal to carry out up-downgoing transfer of data.

Preferably, described processing module when determining described target carrier transmission plan, specifically for: if described tenability information corresponding to the spendable combination frequency range belonging to target carrier comprises the second ability information,

Determine to use the target carrier of the target carrier of the first communication standard frequency range and second communication standard frequency range and described terminal to carry out transmitting uplink data; The target carrier of the first communication standard frequency range and described terminal can be used to carry out downlink data transmission; Subframe and the described terminal of target carrier that can use second communication standard frequency range, that do not conflict with the first communication standard frequency range transmitting uplink data carry out downlink data transmission;

Determine to use the target carrier of second communication standard frequency range and described terminal to carry out transmitting uplink data, the target carrier of the target carrier of the first communication standard frequency range and second communication standard frequency range and described terminal can be used to carry out downlink data transmission, and subframe and the described terminal of target carrier that can use the first communication standard frequency range, that do not conflict with the downlink data transmission of second communication standard frequency range carrier wave carry out transmitting uplink data.

Preferably, described processing module when determining described target carrier transmission plan, specifically for: if described tenability information comprises the 3rd ability information,

Determine to use the target carrier of the target carrier of the first communication standard frequency range and second communication standard frequency range to carry out downlink data transmission with described terminal respectively; The target carrier of the first communication standard frequency range and described terminal can be used to carry out transmitting uplink data; Subframe and the described terminal of target carrier that can use second communication standard frequency range, that do not conflict with the first communication standard frequency range downlink data transmission carry out transmitting uplink data;

Determine to use the target carrier of second communication standard frequency range and described terminal to carry out downlink data transmission, the target carrier of the target carrier of the first communication standard frequency range and second communication standard frequency range and described terminal can be used to carry out transmitting uplink data, the target carrier of the first communication standard frequency range and described terminal can not be used to carry out downlink data transmission; Or

Determine to use the target carrier of the first communication standard frequency range and described terminal to carry out transmitting uplink data, the target carrier of the target carrier of the first communication standard frequency range and second communication standard frequency range and described terminal can be used to carry out downlink data transmission, and subframe and the described terminal of target carrier that can use second communication standard frequency range, that do not conflict with the downlink data transmission of the first communication standard frequency range carry out transmitting uplink data.

Preferably, described processing module when determining described target carrier transmission plan, specifically for: if described tenability information comprises the 4th ability information,

Determine to use the target carrier of the first communication standard frequency range and described terminal to carry out uplink and downlink transfer of data; Subframe and the described terminal of target carrier that can use second communication standard frequency range, that do not conflict with the first communication standard frequency range transmitting uplink data carry out downlink data transmission; Subframe and the described terminal of target carrier that can use second communication standard frequency range, that do not conflict with the first communication standard frequency range downlink data transmission carry out transmitting uplink data;

Determine to use the target carrier of second communication standard frequency range and described terminal to carry out uplink and downlink transfer of data; The target carrier of the first communication standard frequency range and described terminal can not be used to carry out upstream or downstream transfer of data; Or

Determine to use the target carrier of the first communication standard frequency range and described terminal to carry out uplink and downlink transfer of data, subframe and the described terminal of target carrier that can use second communication standard frequency range, that do not conflict with the first communication standard frequency range transmitting uplink data carry out downlink data transmission; Subframe and the described terminal of target carrier that can use second communication standard frequency range, that do not conflict with the first communication standard frequency range downlink data transmission carry out transmitting uplink data.

Preferably, described processing module also for: after determining described spendable combination frequency range, before described data transmission module and described terminal carry out transfer of data, the available combination band information being used to indicate described spendable combination frequency range is sent to described terminal, to make described terminal determine described spendable combination frequency range according to the described available combination band information received, and carry out transfer of data with described network side in the described spendable combination frequency range determined;

Described data transmission module specifically for: in the described spendable combination frequency range that described processing module is determined, according to the described carrier aggregation scheme that described processing module is determined, carry out transfer of data with described terminal.

5th aspect, the embodiment of the present invention provides a kind of data transmission system, and described system comprises:

Terminal, combination band information is supported for reporting to network side, described support combination band information is used to indicate the first communication standard of described terminal support and the combination frequency range of second communication standard, and for the described combination frequency range that terminal described in each is supported, report described terminal in this combination frequency range, carry out the tenability information of uplink and downlink transfer respectively to network side simultaneously;

Network side, for receiving the described support combination band information of described terminal to report and described tenability information; And according to the described support combination band information received and described tenability information, determine the carrier aggregation scheme of carrying out transfer of data with described terminal; According to the described carrier aggregation scheme determined, carry out transfer of data with described terminal.

Accompanying drawing explanation

Fig. 1 is the evolution path figure of carrier aggregation technology in the design of 3GPP LTE standard;

The structural representation of the data transmission system that Fig. 2 provides for the embodiment of the present invention;

Fig. 3 A is the schematic diagram of the first possible compound mode of carrier aggregation;

Fig. 3 B is the schematic diagram of the possible compound mode of the second of carrier aggregation;

Fig. 3 C is the schematic diagram of the third possible compound mode of carrier aggregation;

Fig. 4 A, for when TDD frequency range carrier wave is near FDD uplink band carrier wave, same subframe is the descending of terminal scheduling TDD frequency range carrier wave exists with the up of FDD frequency range carrier wave the schematic diagram disturbed;

Fig. 4 B, for when TDD frequency range carrier wave is near FDD band downlink carrier wave, same subframe is the up of terminal scheduling TDD frequency range carrier wave exists with the descending of FDD frequency range carrier wave the schematic diagram disturbed;

Fig. 4 C is when TDD frequency range carrier wave is simultaneously when the uplink and downlink frequency range carrier wave of FDD, same subframe to be the up of terminal scheduling TDD frequency range carrier wave with FDD frequency range carrier wave descending exist disturbs, and is that the up of terminal scheduling TDD frequency range carrier wave exists with the descending of FDD frequency range carrier wave the schematic diagram disturbed in same subframe;

Fig. 5 A is in example three, when FDD carrier wave is as auxiliary carrier wave as main carrier for TDD carrier wave, and the scheme schematic diagram of network side dispatch terminal;

Fig. 5 B is in example three, when TDD carrier wave is as auxiliary carrier wave as main carrier for FDD carrier wave, and the scheme schematic diagram of network side dispatch terminal;

Fig. 6 A is in example four, when FDD carrier wave is as auxiliary carrier wave as main carrier for TDD carrier wave, and the scheme schematic diagram of network side dispatch terminal;

Fig. 6 B is in example four, and when FDD carrier wave, as main carrier, TDD carrier wave is as auxiliary carrier wave, and the scheme of employing for the moment, the scheme schematic diagram of network side dispatch terminal;

Fig. 6 C is in example four, when FDD carrier wave as main carrier TDD carrier wave as auxiliary carrier wave, and adopt scheme two time, the scheme schematic diagram of network side dispatch terminal;

Fig. 7 A is in example five, when FDD carrier wave is as auxiliary carrier wave as main carrier for TDD carrier wave, and the scheme schematic diagram of network side dispatch terminal;

Fig. 7 B is in example five, and when FDD carrier wave, as main carrier, TDD carrier wave is as auxiliary carrier wave, and the scheme of employing for the moment, the scheme schematic diagram of network side dispatch terminal;

Fig. 7 C is in example five, when FDD carrier wave as main carrier TDD carrier wave as auxiliary carrier wave, and adopt scheme two time, the scheme schematic diagram of network side dispatch terminal;

The process schematic of the first data transmission method that Fig. 8 provides for the embodiment of the present invention;

The process schematic of the second data transmission method that Fig. 9 provides for the embodiment of the present invention;

The structural representation of the terminal that Figure 10 provides for the embodiment of the present invention;

The structural representation of the network equipment that Figure 11 provides for the embodiment of the present invention.

Embodiment

The embodiment of the present invention provides a kind of method and apparatus of transfer of data, in order to solve in existing method, base station is to the scheme that the terminal of TDD-FDD uplink and downlink carrier aggregation can not be supported to adopt TDD-FDD carrier aggregation simultaneously, what may cause is carrying out in the process of transfer of data with this terminal, there is larger up-downgoing interference, affect the problem of communication quality.

In the method for a kind of transfer of data provided in the embodiment of the present invention, terminal reports to network side and supports combination band information, this support combination band information is used to indicate the first communication standard of this terminal support and the combination frequency range of second communication standard, the combination frequency range that terminal pins is supported each terminal, reports the tenability information of simultaneously carrying out uplink and downlink transfer in this combination frequency range respectively to network side; The carrier aggregation scheme that terminal is determined according to network side and network side carry out transfer of data, and wherein, carrier aggregation scheme is that network side is determined according to the above-mentioned support combination band information of terminal to report and above-mentioned tenability information.

In the method, because terminal has reported above-mentioned support combination band information and tenability information to network side, make network side can determine to carry out according to above-mentioned two kinds of information of terminal to report the carrier aggregation scheme of transfer of data, can avoid in prior art the terminal of carrier aggregation can not supporting the first communication standard frequency range and the uplink and downlink of second communication standard frequency range simultaneously, when adopting carrier aggregation scheme to transmit, there is larger up-downgoing interference, affect the problem of communication quality.

Below, by reference to the accompanying drawings the embodiment of the present invention is described in detail.

As shown in Figure 2, the embodiment of the present invention provides a kind of data transmission system, and this system comprises:

Terminal 201, combination band information is supported for reporting to network side 202, this support combination band information is used to indicate the first communication standard of terminal 201 support and the combination frequency range of second communication standard, and for the combination frequency range that each terminal 201 is supported, in this combination frequency range, carry out the tenability information of uplink and downlink transfer respectively to network side 202 reporting terminal 201 simultaneously;

Network side 202, the above-mentioned support combination band information reported for receiving terminal 201 and tenability information; And according to the above-mentioned support combination band information received and tenability information, determine the carrier aggregation scheme of carrying out transfer of data with terminal 201; According to the carrier aggregation scheme determined, carry out transfer of data with terminal 201.

Wherein, network side 202 can include but not limited to following equipment:

For LTE system, network side 202 can comprise enode b (evolued NodeB, eNB); The system that the embodiment of the present invention provides can be adopted, to realize network side according to the support combination band information of terminal to report and tenability information, determine the carrier aggregation scheme of carrying out transfer of data with terminal, and carry out transfer of data according to the carrier aggregation scheme determined and terminal, realize selecting data transmission scheme according to the practical capacity of terminal, avoid up-downgoing to disturb, improve communication quality.

Alternatively, for LTE system, above-mentioned support is reported to combine band information in the message UE-EUTRA-Capability that terminal 201 can define in standard 3GPP TS36.331, and for the combination frequency range that each is supported, report the above-mentioned tenability information of simultaneously carrying out uplink and downlink transfer in this combination frequency range respectively.

Alternatively, terminal 201 can when starting shooting, when being handed over to community that network side 202 administers, set up signaling with network side 202 and be connected (such as wireless heterogeneous networks (Radio Resource Control, RRC) connect) after or response to network side 202 send request, before carrying out transfer of data with network side 202, above-mentioned support is reported to combine band information and tenability information to network side 202.

Correspondingly, above-mentioned two kinds of information that network side 202 can have received terminal 201 and reports, directly determine the carrier aggregation scheme of carrying out transfer of data with terminal 201 accordingly;

Or network side 202 also can store receiving above-mentioned two kinds of information, when network side 202 needs to carry out transfer of data with terminal 201, then according to the above-mentioned two kinds of information prestored, determine the carrier aggregation scheme of carrying out transfer of data with terminal 201.

Particularly, network side 202, according to the support combination band information received and tenability information, is determined the carrier aggregation scheme of carrying out transfer of data with terminal 201, being comprised:

Network side 202, according to the support combination band information received, is determined to carry out the spendable combination frequency range of transfer of data with terminal 201;

Network side 202 is according to the above-mentioned spendable combination frequency range determined, determine the target carrier of carrying out transfer of data use with terminal 201, and according to the tenability information for spendable combination frequency range belonging to above-mentioned target carrier that terminal 201 reports, determine to carry out the target carrier transmission plan of transfer of data with terminal 201 in above-mentioned target carrier.

Terminal 201 report support combination band information time, usually can will between two frequency range as combine frequency range report.The combination frequency range that network side 202 is supported according to the support combination band information determination terminal 201 received, and can according to the band information prestored, determine that this combination frequency range is the combination frequency range of the first communication standard and second communication standard, and the transmission direction (upstream or downstream) of frequency range can be determined.

Network side 202 may can not support terminal 201 support all combination frequency ranges (such as: channeling between distinct coverage region in wireless communication system, a network side 202 only may use component frequency resource in wireless communication system), in addition, even if network side 202 can support terminal 201 support all combination frequency ranges, can be also that terminal 201 selects the combination frequency range of certain group or a few groups of supports to transmit according to schemes such as the scheduling of network side 202 and Resourse Distribute.Therefore, the support combination band information that network side 202 can report according to terminal 201, adopts the scheduling and Resource Allocation Formula preset, determines to carry out the spendable combination frequency range of transfer of data with terminal 201.

Bandwidth corresponding to a usual frequency range is comparatively large, and it can comprise multiple carrier wave, and such as, for LTE system, the frequency range of a 60M bandwidth can comprise the carrier wave of 3 20M bandwidth.Consider channeling, network side 202(such as base station) partial carrier wave usually only in schedulable frequency range, or network side 202 is according to the strategy (such as according to the carrier wave that uplink interference situation selects interference minimum) of other RRMs, determine, in spendable combination frequency range, to carry out the target carrier of transfer of data use with terminal 201.

The tenability information for the spendable combination frequency range belonging to above-mentioned target carrier that network side 202 reports according to terminal 201, determine to carry out the carrier aggregation scheme of transfer of data with terminal 201 in target carrier, and carry out transfer of data according to the carrier aggregation scheme determined and terminal 201.

Alternatively, after network side 202 determines to carry out the spendable combination frequency range of transfer of data with terminal 201, before carrying out transfer of data with terminal 201, the available combination band information of spendable for terminal 201 combination frequency range is sent to terminal 201; Terminal 201 is according to the spendable combination frequency range of available combination band information determination terminal 201 received, the radio-frequency channel that other not spendable combination frequency ranges are corresponding can be closed, to reach power saving and to reduce interference object, and only can carry out downstream signal due to terminal 201 in the spendable combination frequency range received to detect and upward signal transmission, the processing load of terminal 201 can be reduced, improve its treatment effeciency.

Alternatively, after network side 202 determines to carry out the target carrier of transfer of data use with terminal 201, before carrying out transfer of data with terminal 201, the information being used to indicate above-mentioned target carrier is issued terminal 201, determines the target carrier of carrying out transfer of data use with network side 202 to make terminal 201.

Terminal 201 is according to the dispatch command of network side 202, the target carrier determined carries out transfer of data with network side 202, particularly, the descending sub frame of dispatch command instruction receives the data that network side 202 issues, the sub-frame of uplink of dispatch command instruction sends data to network side 202.

Alternatively, the first communication standard comprises TDD communication standard, and second communication standard comprises FDD communication standard.Below, in order to more clearly describe the embodiment of the present invention, the example using TDD communication standard as the first communication standard, the example using FDD communication standard as second communication standard is described.

For TDD standard, up-downgoing shares identical frequency range; And for FDD standard, up-downgoing uses different frequency ranges.When TDD-FDD carrier aggregation, corresponding to the terminal of disturbance rejection ability, the situation of terminal up-downgoing interference is different.

Below, by contrast FDD frequency range carrier aggregation and TDD frequency range carrier aggregation, three kinds of different scenes of TDD-FDD carrier aggregation are described.

To Release12, three of carrier aggregation may be combined and are respectively shown in Fig. 3 A, Fig. 3 B and Fig. 3 C, respectively:

The carrier wave of combination 1, FDD frequency range is polymerized with the carrier wave of FDD frequency range;

The carrier wave of combination 2, TDD frequency range is polymerized with the carrier wave of TDD frequency range;

The carrier wave of combination 3, TDD frequency range is polymerized with the carrier wave of FDD frequency range.

Wherein, the scene combining 1 there will not be up-downgoing to disturb.Owing to having larger protection interval between up (Uplink, UL) frequency range and descending (Downlink, DL) frequency range, and terminal is equipped with duplexer usually, and therefore transmitting of end side can not be disturbed mutually with Received signal strength.

The scene of combination 2 is divided into two kinds of situations:

Situation 1, when the TDD uplink and downlink time slot configuration that two carrier waves adopt is identical, there will not be carrier wave contrary for terminal scheduling two data transfer directions in same subframe, therefore also there is not the mutual interference between up and descending carrier;

Situation 2, when the TDD time slot configuration that two carrier waves adopt is different, can produce mutual interference between up and descending carrier, the size of interference depends on the interval of terminal to the filter capacity of interference signal and two TDD carrier waves.

And for combination 3, namely the carrier wave of TDD frequency range and FDD carrier wave carry out being polymerized (hereinafter referred to as " TDD-FDD carrier aggregation "), consider that FDD frequency range contains the uplink and downlink frequency range being positioned at different frequency range position, the situation of TDD-FDD carrier aggregation interference not only depend on carrier wave for carrying out transmitting uplink data and for carry out downlink data transmission carrier wave between interval, also depend on the relative position of the carrier wave of TDD frequency range and the carrier wave of FDD frequency range, be described as follows:

As shown in Figure 4 A, when the carrier wave of TDD frequency range is when the carrier wave of FDD uplink band, same subframe is disturbed for descending and FDD frequency range carrier wave up of terminal scheduling TDD frequency range carrier wave will exist up-downgoing;

As shown in Figure 4 B, when the carrier wave of TDD frequency range is when the carrier wave of FDD band downlink, same subframe is disturbed for up and FDD frequency range carrier wave descending of terminal scheduling TDD frequency range carrier wave will exist up-downgoing;

As shown in Figure 4 C, when the carrier wave of TDD frequency range is simultaneously when the uplink and downlink frequency range carrier wave of FDD, same subframe disturb for up and FDD frequency range carrier wave descending of terminal scheduling TDD frequency range carrier wave will exist up-downgoing, and is that the up and FDD frequency range carrier wave of terminal scheduling TDD frequency range carrier wave descending also will exist up-downgoing and disturb in same subframe.

Therefore, alternatively, in the embodiment of the present invention, terminal 201, when reporting above-mentioned tenability information, can report the tenability to above-mentioned different scene.Particularly, tenability information can comprise the one in following ability information:

Support that TDD is descending to transmit with FDD is up simultaneously, and support the descending the first ability information simultaneously transmitted up with TDD of FDD;

Support that TDD is descending to transmit with FDD is up simultaneously, but do not support the descending the second ability information simultaneously transmitted up with TDD of FDD;

Do not support that TDD is descending to transmit with FDD is up simultaneously, but support descending three ability information simultaneously transmitted up with TDD of FDD;

Neither support that TDD is descending to transmit with FDD is up simultaneously, also do not support descending four ability information simultaneously transmitted up with TDD of FDD.

Be organized into the form of form, can as shown in Table 1 below:

Table 1

Tenability information	Support FDD UL+TDD DL	Do not support FDD UL+TDD DL
			Support FDD DL+TDD UL	The first ability information	3rd ability information
Do not support FDD DL+TDD UL	The second ability information	4th ability information

Adopt this possibility, can realize terminal 201 accurately reports self to the tenability of the different scenes of TDD-FDD carrier aggregation to network side 202, network side 202 pairs of terminals 201 are accurately dispatched, under the prerequisite ensureing communication quality, the transmission means of carrier aggregation can be adopted as far as possible, improve the message transmission rate with terminal 201.

Above, the tenability information that terminal 201 reports is described in detail, below, report the concrete mode of tenability information to be illustrated to terminal 201.

In embodiments of the present invention, terminal 201 reports the mode of tenability information to include but not limited to following two kinds of modes:

Mode 1, report tenability information by single cell (Information Element, IE);

Mode 2, report tenability information by two IE.

Below, these two kinds of modes are described in detail.

Mode 1

Terminal 201 reports the tenability information to combination frequency range to network side 202, comprise: terminal 201 sends an IE to network side 202, four kinds of different values corresponding the first ability information, the second ability information, the 3rd ability information and the 4th ability information respectively of an IE.

Correspondingly, network side 202, according to the value of the IE received, determines that the tenability information of terminal 201 to combination frequency range specifically comprises in the first ability information, the second ability information, the 3rd ability information and the 4th ability information any.

Mode 2

Terminal 201 reports the tenability information to combination frequency range to network side 202, comprise: terminal 201 sends the 2nd IE to network side 202, the different values of two kinds of 2nd IE corresponding the first ability information and the 5th ability information respectively, wherein the 5th ability information is used to indicate tenability information and comprises one in the second ability information, the 3rd ability information and the 4th ability information;

If corresponding 5th ability information of the 2nd IE, then terminal 201 to network side 202 report to combination frequency range tenability information, also comprise: send the 3rd IE to network side 202, value corresponding the second ability information, the 3rd ability information and the 4th ability information respectively that three kinds of the 3rd IE are different.

Correspondingly, if the value of the 2nd IE that network side 202 receives, determine that the tenability information of terminal 201 comprises the first ability information, or the 5th ability information;

If network side 202 is according to the value of the 2nd IE received, determine that the tenability information of terminal 201 comprises the 5th ability information, then further, network side 202 receives the 3rd IE, comprises in the second ability information, the 3rd ability information and the 4th ability information any according to the tenability information of the value determination terminal 201 of the 3rd IE.

Example one below gives the concrete message structure example of mode 1; Example two below gives the concrete message structure example of mode 2.

Above, the concrete mode of tenability information is reported to be illustrated to terminal 201.We also mention above, band information and tenability information are combined in the support that network side 202 sends according to the terminal 201 received, and determine that the carrier aggregation scheme of carrying out transfer of data with terminal 201 comprises: determine the step of spendable combination frequency range and determine the step of target carrier transmission plan.Below, network side 202 is determined that the method for target carrier transmission plan is described in detail.

Particularly, the tenability information that the spendable combination frequency range belonging to the target carrier reported according to terminal 201 is corresponding, four kinds of situations in differentiation table 2 are described.

Table 2

Below, respectively four kinds of situations are illustrated one by one.

Tenability information corresponding to the spendable combination frequency range belonging to situation 1, target carrier comprises the first ability information

Situation 1 time, network side 202 is determined to use target carrier and terminal 201 to carry out up-downgoing transfer of data.

Now, the scheduling of network side 202 couples of FDD DL, FDD UL and TDD DL, TDD UL does not limit;

In the target carrier of TDD frequency range that terminal 201 is determined at network side 202 respectively and the target carrier of FDD frequency range, carry out transfer of data with network side 202 respectively according to transmission means existing in existing system.

Tenability information corresponding to the spendable combination frequency range belonging to situation 2, target carrier comprises the second ability information

Situation 2 times, network side 202 determines target carrier transmission plan respectively according to main and auxiliary carrier wave configuration again.

Here, improve for the data transmission method of the uplink and downlink wave carrier conflict problem in the transmission of TDD and TDD carrier aggregation in existing method.Specify in existing standard: the transmission direction of carrier wave is as the criterion with the main carrier transmission direction of terminal configuration, then no longer transmits when the transmission direction of auxiliary carrier wave conflicts with the transmission direction of main carrier.If this transmission means directly to be extended to the scene of TDD-FDD carrier aggregation, the terminal 201(such as tenability information for some ability so can be caused to comprise the carrier wave of the second ability information, the 3rd ability information and the 4th ability information), descending carrier polymerization cannot be realized.Such as, transmit with FDD is up for not supporting that TDD is descending simultaneously, and do not support the descending terminal simultaneously transmitted up with TDD of FDD, if FDD carrier wave is for this terminal main carrier and TDD carrier wave is the auxiliary carrier wave of this terminal, if be so as the criterion with the main carrier transmission direction of terminal configuration based on existing standard, then TDD carrier wave is no longer this terminal transmission data, cannot reach the object of carrier aggregation.

In the embodiment of the present invention, above-mentioned existing method is improved, particularly:

When using the target carrier of TDD frequency range as main carrier, when the target carrier of FDD frequency range is as auxiliary carrier wave,

Network side 202 is determined to use the target carrier of TDD frequency range and the target carrier of FDD frequency range and terminal 201 to carry out transmitting uplink data; The target carrier of TDD frequency range and terminal 201 can be used to carry out downlink data transmission; Subframe and the terminal 201 of target carrier that can use FDD frequency range, that do not conflict with TDD frequency range transmitting uplink data carry out downlink data transmission;

When using the target carrier of FDD frequency range as main carrier, when the target carrier of TDD frequency range is as auxiliary carrier wave,

Network side 202 is determined to use the target carrier of FDD frequency range and terminal 201 to carry out transmitting uplink data, the target carrier of TDD frequency range and the target carrier of FDD frequency range and terminal 201 can be used to carry out downlink data transmission, and subframe and the terminal 201 of target carrier that can use TDD frequency range, that do not conflict with FDD frequency range downlink data transmission carry out transmitting uplink data.

Situation 3, tenability information corresponding to the spendable combination frequency range belonging to target carrier comprises the 3rd ability information

Situation 3 times, network side 202 determines target carrier transmission plan respectively according to main and auxiliary carrier wave configuration again; Be employed herein and solve in prior art under some major-minor carrier wave configures with similar method in situation 2, the problem of carrier aggregation cannot be carried out.

When using the target carrier of TDD frequency range as main carrier, when using the target carrier of FDD frequency range as auxiliary carrier wave,

Network side 202 is determined to use the target carrier of the target carrier of TDD frequency range and FDD band downlink to carry out downlink data transmission with terminal 201 respectively; The target carrier of TDD frequency range and terminal 201 can be used to carry out transmitting uplink data; Subframe and the terminal 201 of target carrier that can use FDD uplink band, that do not conflict with TDD frequency range downlink data transmission carry out transmitting uplink data;

When using the target carrier of FDD frequency range as main carrier, when using the target carrier of TDD frequency range as auxiliary carrier wave,

Network side 202 is determined to use the target carrier of FDD frequency range and terminal 201 to carry out downlink data transmission, the target carrier of TDD frequency range and the target carrier of FDD frequency range and terminal 201 can be used to carry out transmitting uplink data, the target carrier of TDD frequency range and terminal 201 can not be used to carry out downlink data transmission; Or

Network side 202 is determined to use the target carrier of TDD frequency range and terminal 201 to carry out transmitting uplink data, the target carrier of TDD frequency range and the target carrier of FDD frequency range and terminal 201 can be used to carry out downlink data transmission, and subframe and the terminal 201 of target carrier that can use FDD frequency range, that do not conflict with TDD frequency range downlink data transmission carry out transmitting uplink data.

Tenability information corresponding to the spendable combination frequency range belonging to situation 4, target carrier comprises the 4th ability information

Situation 4 times, network side 202 determines target carrier transmission plan respectively according to main and auxiliary carrier wave configuration again; Be employed herein and similar method in situation 2, to solve in prior art under some major-minor carrier wave configuration, the problem of carrier aggregation cannot be carried out.

Network side 202 is determined to use the target carrier of TDD frequency range and terminal 201 to carry out up-downgoing transfer of data; Subframe and the terminal 201 of target carrier that can use FDD frequency range, that do not conflict with TDD frequency range transmitting uplink data carry out downlink data transmission; Subframe and the terminal 201 of target carrier that can use FDD frequency range, that do not conflict with TDD frequency range downlink data transmission carry out transmitting uplink data;

Network side 202 is determined to use the target carrier of FDD frequency range and terminal 201 to carry out up-downgoing transfer of data; The target carrier of TDD frequency range and terminal 201 can not be used to carry out upstream or downstream transfer of data; Or

Network side 202 is determined to use the target carrier of TDD frequency range and terminal 201 to carry out downlink data transmission, and subframe and the terminal 201 of target carrier that can use FDD frequency range, that do not conflict with TDD frequency range transmitting uplink data carry out downlink data transmission; The target carrier of TDD frequency range and terminal 201 can be used to carry out transmitting uplink data, and subframe and the terminal 201 of target carrier that can use FDD frequency range, that do not conflict with TDD frequency range downlink data transmission carry out transmitting uplink data.

Correspondingly, terminal 201 is according to the target carrier transmission plan received from network side 202, and the method for carrying out transfer of data with network side 202 also comprises the four kinds of situations listed in table 2.

Because terminal 201 and network side 202 carry out transfer of data, therefore, terminal 201 and network side 202 adopt identical target carrier transmission plan, could realize the transfer of data between them.Accordingly, for kind of the situation of four in table 2, terminal 201 is according to the target carrier transmission plan received from network side 202, and the method for carrying out transfer of data with network side 202 specifically comprises:

Situation 1 time, terminal, respectively in the target carrier of TDD frequency range and the target carrier of FDD frequency range, carries out transfer of data with network side 202 respectively according to transmission means existing in existing system.

Situation 2 times, when using the target carrier of TDD frequency range as main carrier, when using the target carrier of FDD frequency range as auxiliary carrier wave,

Terminal 201 is in TDD target carrier, and the downstream signal that Sampling network side 202 sends in the subframe of the target carrier of the FDD band downlink do not conflicted with TDD frequency range transmitting uplink data;

Terminal 201 sends upward signal to network side 202 respectively in the target carrier of TDD frequency range and in the target carrier of FDD uplink band.

Terminal 201 downstream signal that Sampling network side 202 sends in the target carrier of TDD frequency range and the target carrier of FDD band downlink respectively;

Terminal 201 in the target carrier of FDD uplink band, and is, on the sub-frame of uplink of target carrier of the TDD frequency range that FDD frequency range downlink data transmission is not conflicted, to send upward signal to network side 202.

Situation 3 times, when using the target carrier of TDD frequency range as main carrier, when the target carrier of FDD frequency range is as auxiliary carrier wave,

Terminal 201 sends upward signal to network side 202 in the target carrier of TDD frequency range, and sends upward signal in the UL subframe of the target carrier of the FDD uplink band do not conflicted with TDD frequency range downlink data transmission to network side 202.

Terminal 201 downstream signal that only Sampling network side 202 sends in the target carrier of FDD band downlink; Upward signal is sent to network side 202 respectively in the target carrier of TDD target carrier and FDD uplink band; Or

Terminal 201 downstream signal that Sampling network side 202 sends in the target carrier of TDD target carrier and FDD band downlink respectively; Terminal 201 in the target carrier of TDD frequency range, and sends upward signal to network side 202 in the subframe of the target carrier of the FDD uplink band do not conflicted with TDD frequency range downlink data transmission.

Situation 4 times, when using the target carrier of TDD frequency range as main carrier, when the target carrier of FDD frequency range is as auxiliary carrier wave,

Terminal 201 in the target carrier of TDD frequency range, and in the subframe of the descending carrier of the FDD frequency range of not conflicting with TDD frequency range transmitting uplink data, the downstream signal that Sampling network side 202 sends;

Terminal 201 in the target carrier of TDD frequency range, and in the subframe of the target carrier of the FDD uplink band do not conflicted with TDD frequency range downlink data transmission, sends upward signal to network side 202.

Terminal 201, in the target carrier of FDD frequency range, is carried out transfer of data with network side 202 respectively according to transmission means existing in existing system, TDD frequency range is not sent and Received signal strength; Or

Terminal 201 in the target carrier of TDD frequency range, and in the subframe of the target carrier of the FDD band downlink do not conflicted with TDD frequency range transmitting uplink data, the downstream signal that Sampling network side 202 sends;

For situation 1, terminal 201 can support TDD downlink transfer and FDD is up transmits and non-interference simultaneously, and support FDD descending with TDD up simultaneously transmission give birth to and non-interference, the target carrier of such as TDD frequency range and the target carrier interval of FDD frequency range very large.

Situation 1 time, the scheduling of network side 202 couples of FDD DL, FDD UL and TDD DL, TDD UL does not limit, and terminal 201, respectively in the target carrier and FDD target carrier of the TDD frequency range determined, is transmitted respectively according to transmission means existing in existing system.

For situation 2, terminal 201 can support that TDD downlink transfer and FDD uplink occur and non-interference simultaneously, but does not support that TDD uplink and FDD downlink transfer occur and non-interference simultaneously.

Situation 2 times, such as: TDD frequency range is near the scene of the band downlink of FDD:

1) when the target carrier of TDD frequency range is as main carrier, and the target carrier of FDD frequency range as auxiliary carrier wave time, the TDD DL of network side 202 pairs of terminals 201 dispatches not restriction, only be limited in the subframe of not conflicting with TDD UL to the FDDDL scheduling of terminal 201, the FDD UL of network side 202 pairs of terminals 201 and the scheduling of TDD UL do not limit.Terminal 201 is detection signal in TDD DL target carrier, and in the FDD DL subframe of not conflicting with TDD UL detection signal, terminal sends signal respectively in TDDUL and the FDD UL target carrier determined.

2) when the target carrier of FDD frequency range is as main carrier, and the target carrier of TDD frequency range as auxiliary carrier wave time, the TDD DL of network side 202 pairs of terminals 201 and the scheduling of FDD DL do not limit, the FDD UL of network side 202 pairs of terminals 201 dispatches not restriction, is only limited in the subframe of not conflicting with FDD DL to the TDD UL scheduling of terminal 201; Terminal 201 is detection signal on TDD DL and FDD DL target carrier respectively, and terminal sends signal in FDD UL target carrier, and sends signal in the subframe of the TDD UL target carrier of not conflicting with FDD DL.

Example three below gives situation 2 times, and network side 202 is the example that terminal 201 configures target carrier transmission scheme.

For situation 3, terminal 201 does not support that TDD downlink transfer and FDD uplink occur and non-interference simultaneously, but supports that TDD uplink and FDD downlink transfer occur and non-interference simultaneously.

Situation 3 times, such as: TDD frequency range is near the scene of the uplink band of FDD.

1) when the target carrier of TDD frequency range is as main carrier, and the target carrier of FDD frequency range as auxiliary carrier wave time, the TDD DL of network side 202 pairs of terminals 201 and the scheduling of FDD DL do not limit, the TDD UL of network side 202 pairs of terminals 201 dispatches not restriction, is only limited in the subframe of not conflicting with TDD DL to the FDD UL scheduling of this terminal; Terminal 201 is detection signal on the TDD DL determined and FDD DL target carrier respectively, and terminal 201 sends signal in TDD UL target carrier, and sends signal in the subframe of the FDD UL target carrier of not conflicting with TDD DL.

2) when the target carrier of FDD frequency range is as main carrier, and the target carrier of TDD frequency range as auxiliary carrier wave time, following two schemes can be adopted respectively: scheme one, the FDDDL scheduling not restriction of network side 202 pairs of terminals 201, do not dispatch any TDD DL subframe to terminal 201, the FDD UL of network side 202 pairs of terminals 201 and the scheduling of TDD UL do not limit; Terminal 201 is detection signal in FDD DL target carrier only, and terminal 201 sends signal respectively on TDD UL and FDD UL target carrier.Scheme two, the TDD DL of network side 202 pairs of terminals 201 and the scheduling of FDD DL do not limit, the TDD UL of network side 202 pairs of terminals 201 dispatches not restriction, the FDD UL of this terminal scheduling is only limited in the subframe of the target carrier of not conflicting with TDD DL, it is a certain that the feedback sequential of the FDD carrier wave distributing to terminal 201 is configured in 7 kinds of time slot proportion of existing TDD system by network side 202; Terminal 201 is detection signal on TDD DL and FDD DL target carrier respectively, and terminal 201 sends signal in TDD UL target carrier, and sends signal in the subframe of the FDD UL target carrier of not conflicting with TDD DL.

For the scheme one in situation 3, it meets the regulation in existing standard, and namely the transmission direction of carrier wave is as the criterion with the main carrier transmission direction of terminal configuration, but cannot realize descending carrier aggregation; And for the scheme two in situation 3, though it does not meet the afore mentioned rules in existing standard, descending carrier polymerization can be realized, realize higher downlink transmission rate.

Example four below gives situation 3 times, and network side 202 is the example that terminal 201 configures target carrier transmission scheme.

For situation 4: terminal 201 does not support that TDD downlink transfer and FDD uplink occur and non-interference simultaneously, do not support that TDD uplink and FDD downlink transfer occur and non-interference simultaneously yet.

Situation 4 times, such as: the uplink and downlink frequency range scene all closely of TDD frequency range and FDD:

1) when the target carrier of TDD frequency range is as main carrier, and the target carrier of FDD frequency range as auxiliary carrier wave time, the TDD DL of network side 202 pairs of terminals 201 dispatches not restriction, the subframe of not conflicting with TDD UL is only limited in the FDDDL scheduling of terminal 201, the TDD UL of network side 202 pairs of terminals 201 dispatches not restriction, is only limited in the subframe of not conflicting with TDD DL to the FDD UL scheduling of terminal 201; Terminal 201 is detection signal in TDD DL target carrier, and in the subframe of the FDD DL target carrier of not conflicting with TDD UL detection signal, terminal sends signal in TDD UL target carrier, and sends signal in the subframe of the FDD UL target carrier of not conflicting with TDD DL.

2) when the target carrier of FDD frequency range is as main carrier, and the target carrier of TDD frequency range as auxiliary carrier wave time, following two schemes can be adopted respectively: scheme one, FDDDL and the FDD UL of network side 202 pairs of terminals 201 dispatches not restriction, any TDD subframe is not dispatched for terminal 201, terminal 201 in FDD target carrier according to existing system in existing transmission means transmit respectively, not transmitt or receive signal in TDD target carrier.Scheme two, the TDD DL of network side 202 pairs of terminals 201 dispatches not restriction, the subframe of not conflicting with TDD UL is only limited in the FDD DL scheduling of terminal 201, the TDD UL of network side 202 pairs of terminals 201 dispatches not restriction, is only limited in the subframe of not conflicting with TDD DL to the FDD UL scheduling of terminal 201; Terminal 201 is detection signal in TDD DL target carrier, and in the subframe of the FDD DL target carrier of not conflicting with TDD UL detection signal, terminal 201 sends signal in TDDUL target carrier, and sends signal in the subframe of the FDD UL target carrier of not conflicting with TDD DL.

Example five below provides situation 4 times, and network side 202 is the example that terminal 201 configures target carrier transmission scheme.

Below, be described in detail by example one ~ example five pairs of embodiment of the present invention.

Example one

Following content can be increased in the 6.3.6 joint of 3GPP technical specification (Technical Specification, TS) 36.331:

Wherein, underscore part is with to be a newly-increased IE.In above-mentioned ASN definition, at UE-EUTRA-Capability, UE-EUTRA-Capability-v12xy-IEs, RF-Parameters-v12xy, after SupportedBandCombination-v12xy, among the definition of IBandCombinationParameters-v12xy, add an IE:Simultaneous-TDDFDD-Rx-Tx-r12, its type is enumeration type (ENUMERATED), there are four value: a1, a2, a3, a4, corresponding aforesaid the first ability information can be distinguished, the second ability information, 3rd ability information and the 4th ability information, wherein, to a1, a2, a3, the tandem of a4 does not do mandatory provision, as long as the implication that the value of each enumerated value of accurate definition is corresponding in specification, what network side 202 and terminal 201 all defined in code requirement identically resolves enumerated value, network side 202 and the consistent understanding of terminal 201 to an IE value implication can be realized.

In this ASN defines, the implication that other describe is explained as follows:

SEQUENCE, sequence is a kind of data type, and it represents that corresponding IE is is the set of one group of sequential element;

SIZE, represents the length of data, and SEQUENCE (SIZE (1..maxBandComb-r10)) represents that one has maximum maxBandComb-r10, the sequence of minimum 1 element;

SEQUENCE OF BandCombinationParameters-v12xy, represents that the type of the element of this sequence is BandCombinationParameters-v12xy.

Can in TS36.331, following description is increased to IE Simultaneous-TDDFDD-Rx-Tx-r12, those of ordinary skill in the art should know, description for this IE can have multiple, as long as terminal 201 can be realized by reporting this IE, report it to the tenability of TDD-FDD carrier aggregation to network side 202; Network side 202 correctly can determine the tenability of the TDD-FDD carrier aggregation of terminal 201 according to this IE received.Therefore, the following describes and be only signal, should not be considered as limitation of the present invention.

Indicates whether the UE supports simultaneous reception and transmission ondifferent bands for each TDD-FDD band combination listed insupportedBandCombination.This field is only applicable for TDD FDD carrieraggregation.

As follows to one section of English translation described above: TDD-FDD to be listed in supportedBandCombination for each and combines frequency range, whether equipment for indicating user (UserEquipment, UE) is supported in different frequency ranges is carried out receiving and sending simultaneously.This field is only for TDD-FDD carrier aggregation.

From foregoing description, IE Simultaneous-TDDFDD-Rx-Tx-r12 is for a concrete TDD-FDD frequency range combination, namely UE lists the combination of TDD-FDD frequency range for each in supportedBandCombination, all uses this IE to indicate it to support the ability of TDD-FDD carrier aggregation.

Here UE is the terminal 201 in the embodiment of the present invention.Wherein four kinds of value a1 of IEsimultaneous-TDDFDD-Rx-Tx-r12, a2, a3, a4 represents four kinds of tenability information in table 1 respectively, its optional value can as shown in the flag in table 3, here be only signal, actual value mode can be not limited to shown in table 3, as long as can represent the tenability of terminal 201 pairs of TDD-FDD carrier aggregation.

Table 3

Network side 202, according to the value of the IE simultaneous-TDDFDD-Rx-Tx-r12 received, determines that the method for the support TDD-FDD carrier aggregation capacity of terminal 201 can comprise:

In the message that network side 202 reports in terminal 201, find IEBandCombinationParameters-v12xy, then read the value of simultaneous-TDD-FDD-Rx-Tx-r12 in this IE further.For the value that table 3 is listed,

If value is 11, then characterizes terminal 201 and combine at TDD and FDD of correspondence and frequency range supports that TDD is descending transmit with FDD is up simultaneously, and support that FDD is descending and transmit with TDD is up simultaneously;

If value is 01, then characterizes terminal 201 and combine at TDD and FDD of correspondence and frequency range supports that TDD is descending transmit with FDD is up simultaneously, but do not support that FDD is descending and transmit with TDD is up simultaneously;

If value is 10, then characterizes terminal 201 and combine at TDD and FDD of correspondence and frequency range supports that FDD is descending transmit with TDD is up simultaneously, but do not support that TDD is descending and transmit with FDD is up simultaneously;

If value is 00, then characterizes terminal 201 and combine at TDD and FDD of correspondence and frequency range does not support that TDD is descending transmit with FDD is up simultaneously, and do not support that FDD is descending and transmit with TDD is up simultaneously.

Example two

2nd IE can continue to use the simultaneousRx-Tx-r11 in standard TS36.331v12.0.0 disclosed in December, 2013 in 6.3.6 joint.Wherein, the definition of the document to this IE comprises:

Wherein, ENUMERATED{supported} indicates that corresponding enumerated value is received and dispatched for expressing support for simultaneously, and OPTIONAL represents that corresponding IE is optional IE.

Following content is increased in the 6.3.6 joint of TS 36.331:

Wherein, underscore part is with to be the 3rd newly-increased IE.In above-mentioned ASN definition, after UE-EUTRA-Capability, UE-EUTRA-Capability-v12xy-IEs, RF-Parameters-v12xy, SupportedBandCombination-v12xy, in BandCombinationParameters-v12xy, define the 3rd IE:Simultaneous-TDDFDD-Rx-Tx-r12, its type is enumeration type (ENUMERATED), there are four value: a1, a2, a3, can distinguish corresponding aforesaid the second ability information, the 3rd ability information and the 4th ability information.Wherein, to a1, a2, the tandem of a3 does not do mandatory provision, as long as the implication that the value of each enumerated value of accurate definition is corresponding in specification, what network side 202 and terminal 201 all defined in code requirement identically resolves enumerated value, can realize network side 202 and the consistent understanding of terminal 201 to the 3rd IE value implication.3rd IE is optional (OPTIONAL) IE.Wherein, for the IE ended up with " xy " in above-mentioned ASN definition, " xy " wherein represents the sub-version number in v12.

In TS36.331, increase following description to the 2nd IE simultaneousRx-Tx-r11, those of ordinary skill in the art should know, the description for this IE can have multiple, as long as terminal 201 can be realized by reporting this IE, report the tenability of its carrier aggregation to network side 202; Network side 202 correctly can determine the tenability of the carrier aggregation of terminal 201 according to this IE received.Therefore, the following describes and be only signal, should not be considered as limitation of the present invention.

Indicates whether the UE supports simultaneous reception and transmission ondifferent bands for each band combination listed in supportedBandCombination.This field is applicable for inter-band TDD carrier aggregation and TDD FDDcarrier aggregation.

As follows to one section of English translation described above: in supportedBandCombination, list combination frequency range for each, whether instruction UE is supported in different frequency ranges and carries out receiving and sending simultaneously.This field is used for TDD carrier aggregation and TDD-FDD carrier aggregation between frequency band.

Can in TS36.331, following description is increased to the 3rd IE simultaneous-TDDFDD-Rx-Tx, those of ordinary skill in the art should know, description for this IE can have multiple, as long as terminal 201 can be realized by reporting this IE, report the tenability of its TDD-FDD carrier aggregation to network side 202; Network side 202 correctly can determine the tenability of the TDD-FDD carrier aggregation of terminal 201 according to this IE received.Therefore, the following describes and be only signal, should not be considered as limitation of the present invention.

As follows to one section of English translation described above: in supportedBandCombination, list TDD-FDD for each and combine frequency range, whether instruction UE is supported in different frequency ranges and carries out receiving and sending simultaneously.This field is only for TDD-FDD carrier aggregation.

Wherein, three kinds of value a1 of IE simultaneous-TDDFDD-Rx-Tx-r12, a2, a3 represents the rear three kinds of tenability information in table 1 respectively, its optional value can as shown in the flag in table 4, here be only signal, actual value mode can be not limited to shown in table 4, as long as can represent the tenability of terminal 201 pairs of TDD-FDD carrier aggregation.

Table 4

Network side 202 according to the value of the 2nd IE simultaneousRx-Tx-r11 received, and according to the value of the 3rd IE simultaneous-TDDFDD-Rx-Tx received, determines that terminal 201 supports that the method for TDD-FDD carrier aggregation capacity can comprise:

Network side 202 finds out corresponding IEBandCombinationParameters-v11xy according to determined carrier combination frequency range, read simultaneousRx-Tx-r11 wherein, according to the value of simultaneousRx-Tx-r11, determine whether terminal 201 is supported in different frequency range and carries out sending and receiving simultaneously.Wherein, " xy " in IE BandCombinationParameters-v11xy is for representing the sub-version number in v11 version.Such as, with mark ' 1 ' characterize terminal 201 combine in the frequency range of correspondence two frequency ranges comprising are supported while travel direction contrary transfer of data, with mark ' 0 ' characterize terminal 201 combine in the frequency range of correspondence two frequency ranges comprising are not supported while travel direction contrary transfer of data, so for TDD-FDD carrier aggregation, if this IE value is 1, characterize this terminal 201 to combine at TDD and FDD of correspondence and frequency range supports that TDD is descending transmit with FDD is up simultaneously, and support that FDD is descending and transmit with TDD is up simultaneously; If be 0, then network side 202 continues to read IEBandCombinationParameters-v12xy, and " xy " in this IE is for representing the sub-version number of v12.

Network side 202 reads IE BandCombinationParameters-v12xy, reads the value of IE simultaneous-TDDFDD-Rx-Tx wherein further.For the value that table 4 is listed,

If value is 01, then characterizes terminal 201 and combine at TDD and FDD of correspondence and frequency range supports that TDD is descending transmit with FDD is up simultaneously, do not support that FDD is descending and transmit with TDD is up simultaneously;

If value is 10, then characterizes terminal 201 and combine at TDD and FDD of correspondence and frequency range supports that FDD is descending transmit with TDD is up simultaneously, do not support that TDD is descending and transmit with FDD is up simultaneously;

Example three

Example three gives the object lesson of a TDD carrier wave and a FDD carrier aggregation.Wherein, TDD carrier wave adopts time slot proportion 1, and the transmission means when TDD carrier wave adopts other time slot proportion can obtain according to similar approach.About the definition of TDD time slot proportion, can with reference to the following definitions of 4.2 joints in existing standard TS36.211v11.2.0 disclosed in December, 2012, specifically see table 5, wherein, D represents descending sub frame, and U represents sub-frame of uplink, and S represents special subframe.

Table 5

Particularly, 1) when FDD carrier wave is as auxiliary carrier wave as main carrier for TDD carrier wave, as shown in Figure 5A, the uplink and downlink subframe of TDD carrier wave all distributes to terminal transmission data, 3rd and the 4th subframe of FDD descending carrier is no longer this terminal transmission data, and the symbol that the protection interval in the 2nd of FDD descending carrier the subframe and in TDD special time slot (second subframe) and the OFDM symbol shared by uplink are conflicted is no longer this terminal transmission data;

2) when TDD carrier wave is as auxiliary carrier wave as main carrier for FDD carrier wave; as shown in Figure 5 B; the uplink and downlink subframe of FDD carrier wave all distributes to terminal transmission data, and the protection interval in the auxiliary carrier wave of TDD in special time slot (second subframe) and the OFDM symbol shared by uplink, the 3rd and the 4th subframe are all no longer this terminal transmission data.

In Fig. 5 A and Fig. 5 B, the subframe in frame or time slot are that the subframe not in frame and time slot are not this terminal transmission data for terminal transmission data uses.

Example four

Example four gives an object lesson of a TDD carrier wave and a FDD carrier aggregation.Wherein, TDD carrier wave adopts time slot proportion 1.Transmission means when TDD carrier wave adopts other time slot proportion can obtain according to similar approach.

Particularly, 1) when FDD carrier wave is as auxiliary carrier wave as main carrier for TDD carrier wave, as shown in Figure 6A, the uplink and downlink subframe of TDD carrier wave all distributes to terminal transmission data, 1st and the 5th subframe of FDD up-link carrier is no longer this terminal transmission data, and the symbol that the protection interval in the 2nd of FDD up-link carrier the subframe and in TDD special time slot (second subframe) and the OFDM symbol shared by downlink transfer are conflicted is no longer this terminal transmission data; Here, due to for this terminal adopt FDD transmit time, do not dispatch a part of sub-frame of uplink, existing standard be FDD downlink transfer design re-transmission and scheduling sequential relationship cannot reuse; Now can be only the subframe that the descending sub frame of terminal configuration FDD is identical with TDD descending sub frame position, so the available uplink and downlink transmission time slot proportioning of FDD is identical with the time slot proportion of TDD main carrier, difference is only that FDD sends uplink and downlink signals at different frequency range, therefore the re-transmission of TDD main carrier and scheduling sequential relationship can be adopted to transmit for FDD transmission, not need to retransmit and dispatch sequential relationship amendment again to agreement.

2) when TDD carrier wave is as auxiliary carrier wave as main carrier for FDD carrier wave, following two schemes is had:

Scheme one, as shown in Figure 6B, the uplink and downlink subframe of FDD carrier wave all distributes to terminal transmission data, the 1st in the auxiliary carrier wave of TDD and the 5th subframe, and the protection interval in special time slot (second subframe) and the OFDM symbol shared by downlink transfer are all no longer this terminal transmission data; Employing scheme one, cannot realize descending carrier polymerization.

Scheme two; as shown in Figure 6 C; the uplink and downlink subframe of TDD carrier wave all distributes to terminal transmission data; 1st and the 5th subframe of FDD up-link carrier is no longer this terminal transmission data, and the symbol that the protection interval in the 2nd of FDD up-link carrier the subframe and in TDD special time slot (second subframe) and the OFDM symbol shared by downlink transfer are conflicted is no longer this terminal transmission data.Here, due to for this terminal adopt FDD transmit time do not dispatch a part of sub-frame of uplink, existing standard be FDD downlink transfer design re-transmission and scheduling sequential relationship cannot reuse; Now can be only the subframe that the descending sub frame of terminal configuration FDD is identical with TDD descending sub frame position, so the available uplink and downlink transmission time slot proportioning of FDD is identical with the time slot proportion of TDD main carrier, difference is only that FDD sends uplink and downlink signals at different frequency range, therefore the re-transmission of TDD main carrier and scheduling sequential relationship can be adopted to transmit for FDD transmission, not need to retransmit and dispatch sequential relationship amendment again to agreement.

In Fig. 6 A, Fig. 6 B and Fig. 6 C, the subframe in frame or time slot are that terminal transmission data uses, and the subframe not in frame and time slot are not this terminal transmission data.

Example five

Example five gives the object lesson of a TDD carrier wave and a FDD carrier aggregation.Wherein, TDD carrier wave adopts time slot proportion 1, and the transmission means when TDD carrier wave adopts other time slot proportion can obtain according to similar approach.

Particularly, 1) when FDD carrier wave is as auxiliary carrier wave as main carrier for TDD carrier wave, as shown in Figure 7 A, TDD carrier wave upper, descending sub frame all distributes to terminal transmission data, 1st and the 5th subframe of FDD up-link carrier is no longer this terminal transmission data, and the symbol that the protection interval in the 2nd of FDD up-link carrier the subframe and in TDD special time slot (second subframe) and the OFDM symbol shared by downlink transfer are conflicted is no longer this terminal transmission data, the 3rd of FDD descending carrier and the 4th subframe, and the symbol that the protection interval in the 2nd of FDD descending carrier the subframe and in TDD special time slot (second subframe) and the OFDM symbol shared by uplink are conflicted is no longer this terminal transmission data.Here, due to for this terminal adopt FDD transmit time do not dispatch a part descending and sub-frame of uplink, existing standard be FDD downlink transfer design re-transmission and scheduling sequential relationship cannot reuse; Consider that the available uplink and downlink transmission time slot proportioning of FDD is identical with the time slot proportion of TDD main carrier, difference is only that FDD sends uplink and downlink signals at different frequency range, therefore the re-transmission of TDD main carrier and scheduling sequential relationship can be adopted to transmit for FDD transmission, not need to retransmit and dispatch sequential relationship amendment again to agreement.

2) when FDD carrier wave is as main carrier, and TDD carrier wave as auxiliary carrier wave time, have following two schemes:

Scheme one, as shown in Figure 7 B, the uplink and downlink subframe of FDD carrier wave all distributes to terminal transmission data, and all subframes of the auxiliary carrier wave of TDD are all no longer this terminal transmission data; Employing scheme one cannot realize carrier aggregation.

Scheme two: TDD carrier wave upper, descending sub frame all distributes to terminal transmission data, 1st and the 5th subframe of FDD up-link carrier is no longer this terminal transmission data, and the symbol that the protection interval in the 2nd of FDD up-link carrier the subframe and in TDD special time slot (second subframe) and the OFDM symbol shared by downlink transfer are conflicted is no longer this terminal transmission data, 3rd and the 4th subframe of FDD descending carrier is no longer this terminal transmission data, and the symbol that the protection interval in the 2nd of FDD descending carrier the subframe and in TDD special time slot (second subframe) and the OFDM symbol shared by uplink are conflicted is no longer this terminal transmission data.Due to for this terminal adopt FDD transmit time do not dispatch a part descending and sub-frame of uplink, existing standard be FDD downlink transfer design re-transmission and scheduling sequential relationship cannot reuse; Consider that the available uplink and downlink transmission time slot proportioning of FDD is identical with the time slot proportion of TDD main carrier, difference is only that FDD sends uplink and downlink signals at different frequency range, therefore the re-transmission of TDD main carrier and scheduling sequential relationship can be adopted to transmit for FDD transmission, not need to retransmit and dispatch sequential relationship amendment again to agreement.

In Fig. 7 A, Fig. 7 B and Fig. 7 C, the subframe in frame or time slot are that terminal transmission data uses, and the subframe not in frame and time slot are not this terminal transmission data.

Based on same inventive concept, the embodiment of the present invention also provides a kind of data transmission method, terminal and network equipment.The principle of the data transmission system that the principle of the data transmission method, terminal and the network equipment technical solution problem that provide due to the embodiment of the present invention and the embodiment of the present invention provide is similar, and its enforcement can the enforcement of frame of reference, repeats part and repeat no more.

The process schematic of the first data transmission method that Fig. 8 provides for the embodiment of the present invention.As shown in Figure 8, the method comprises the steps:

S801: terminal reports to network side and supports combination band information, support that combination band information is used to indicate the first communication standard of terminal support and the combination frequency range of second communication standard, the combination frequency range that terminal pins is supported each terminal, carries out the tenability information of uplink and downlink transfer in this combination frequency range simultaneously respectively to network side reporting terminal;

S802: the carrier aggregation scheme that terminal is determined according to network side and network side carry out transfer of data, wherein, carrier aggregation scheme is that network side is determined according to the support combination band information of terminal to report and tenability information.

Alternatively, tenability information comprises the one in following ability information:

Alternatively, in step S801, terminal reports tenability information to network side, comprising:

Terminal sends the first cell IE to network side, four kinds of different values corresponding the first ability information, the second ability information, the 3rd ability information and the 4th ability information respectively of an IE; Or

Terminal sends the 2nd IE to network side, the different values of two kinds of 2nd IE corresponding the first ability information and the 5th ability information respectively, wherein the 5th ability information is used to indicate tenability information and comprises one in the second ability information, the 3rd ability information and the 4th ability information;

If corresponding 5th ability information of the 2nd IE, then terminal to network side report to combination frequency range tenability information, also comprise: terminal sends the different value of the 3rd IE, the 3rd IE three kinds corresponding the second ability information, the 3rd ability information and the 4th ability information respectively to network side.

Alternatively, in step S801 terminal to network side report support combination band information after, before step S802, the method also comprises:

Terminal from network side place receives network side according to supporting available combination band information that combination band information is determined, the spendable combination frequency range of terminal;

Terminal carries out transfer of data according to carrier aggregation scheme and network side, comprising:

In the combination frequency range that terminal indicates at available combination band information, carry out transfer of data according to carrier aggregation and network side.

Alternatively, the first communication standard comprises: time division multiplexing TDD communication standard; Second communication standard comprises: frequency division multiplexing FDD communication standard.

The process schematic of the second data transmission method that Fig. 9 provides for the embodiment of the present invention.As shown in Figure 9, the method comprises the steps:

S901: the support combination band information that network side receiving terminal reports, support that combination band information is used to indicate the first communication standard of terminal support and the combination frequency range of second communication standard, the combination frequency range that network side receiving terminal is supported for each terminal reports, terminal carries out the tenability information of uplink and downlink transfer in combination frequency range simultaneously;

S902: network side, according to the support combination band information received and tenability information, determines the carrier aggregation scheme of carrying out transfer of data with terminal;

S903: network side, according to the carrier aggregation scheme determined, carries out transfer of data with terminal.

Alternatively, in step S901, the tenability information that network side receiving terminal reports, comprising:

Four kinds of different values corresponding the first ability information, the second ability information, the 3rd ability information and the 4th ability information respectively of the first cell IE that network side receiving terminal sends, an IE; Or

The 2nd IE that network side receiving terminal sends, the different values of two kinds of 2nd IE corresponding the first ability information and the 5th ability information respectively, wherein the 5th ability information is used to indicate tenability information and comprises one in the second ability information, the 3rd ability information and the 4th ability information;

If corresponding 5th ability information of the 2nd IE, the then tenability information that reports of network side receiving terminal, also comprise: the 3rd IE that network side receiving terminal sends, value corresponding the second ability information, the 3rd ability information and the 4th ability information respectively that three kinds of the 3rd IE are different.

Alternatively, step S902 comprises:

Network side, according to the support combination band information received, is determined to carry out the spendable combination frequency range of transfer of data with terminal;

Network side is according to the spendable combination frequency range determined, determine the target carrier of carrying out transfer of data use with terminal, and according to the tenability information for spendable combination frequency range belonging to target carrier of terminal to report, determine the target carrier transmission plan carrying out transfer of data in target carrier with terminal.

Alternatively, network side determination target carrier transmission plan, comprising:

If tenability information corresponding to the spendable combination frequency range belonging to target carrier comprises the first ability information, then network side is determined to use this target carrier and terminal to carry out up-downgoing transfer of data.

Alternatively, network side determination target carrier transmission plan, comprising: if tenability information corresponding to the spendable combination frequency range belonging to target carrier comprises the second ability information,

Network side is determined to use the target carrier of the target carrier of the first communication standard frequency range and second communication standard frequency range and terminal to carry out transmitting uplink data; The target carrier of the first communication standard frequency range and terminal can be used to carry out downlink data transmission; Subframe and the terminal of target carrier that can use second communication standard frequency range, that do not conflict with the first communication standard frequency range transmitting uplink data carry out downlink data transmission;

Network side is determined to use the target carrier of second communication standard frequency range and terminal to carry out transmitting uplink data, the target carrier of the target carrier of the first communication standard frequency range and second communication standard frequency range and terminal can be used to carry out downlink data transmission, and subframe and the terminal of target carrier that can use the first communication standard frequency range, that do not conflict with the downlink data transmission of second communication standard frequency range carrier wave carry out transmitting uplink data.

Alternatively, network side determination target carrier transmission plan, comprising: if tenability information comprises the 3rd ability information,

Network side is determined to use the target carrier of the target carrier of the first communication standard frequency range and second communication standard frequency range to carry out downlink data transmission with terminal respectively; The target carrier of the first communication standard frequency range and terminal can be used to carry out transmitting uplink data; Subframe and the terminal of target carrier that can use second communication standard frequency range, that do not conflict with the first communication standard frequency range downlink data transmission carry out transmitting uplink data;

Network side is determined to use the target carrier of second communication standard frequency range and terminal to carry out downlink data transmission, the target carrier of the target carrier of the first communication standard frequency range and second communication standard frequency range and terminal can be used to carry out transmitting uplink data, the target carrier of the first communication standard frequency range and terminal can not be used to carry out downlink data transmission; Or

Network side is determined to use the target carrier of the first communication standard frequency range and terminal to carry out transmitting uplink data, the target carrier of the target carrier of the first communication standard frequency range and second communication standard frequency range and terminal can be used to carry out downlink data transmission, and subframe and the terminal of target carrier that can use second communication standard frequency range, that do not conflict with the downlink data transmission of the first communication standard frequency range carry out transmitting uplink data.

Alternatively, network side determination target carrier transmission plan, comprising: if tenability information comprises the 4th ability information,

Network side is determined to use the target carrier of the first communication standard frequency range and terminal to carry out uplink and downlink transfer of data; Subframe and the terminal of target carrier that can use second communication standard frequency range, that do not conflict with the first communication standard frequency range transmitting uplink data carry out downlink data transmission; Subframe and the terminal of target carrier that can use second communication standard frequency range, that do not conflict with the first communication standard frequency range downlink data transmission carry out transmitting uplink data;

Network side is determined to use the target carrier of second communication standard frequency range and terminal to carry out uplink and downlink transfer of data; The target carrier of the first communication standard frequency range and terminal can not be used to carry out upstream or downstream transfer of data; Or

Network side is determined to use the target carrier of the first communication standard frequency range and terminal to carry out uplink and downlink transfer of data, and subframe and the terminal of target carrier that can use second communication standard frequency range, that do not conflict with the first communication standard frequency range transmitting uplink data carry out downlink data transmission; Subframe and the terminal of target carrier that can use second communication standard frequency range, that do not conflict with the first communication standard frequency range downlink data transmission carry out transmitting uplink data.

Alternatively, after network side determines spendable combination frequency range, before carrying out transfer of data with terminal, the method also comprises:

Network side sends the available combination band information being used to indicate spendable combination frequency range to terminal, to make terminal determine spendable combination frequency range according to the available combination band information received, and carry out transfer of data with network side in the spendable combination frequency range determined;

Alternatively, step S903 comprises:

Network side, in spendable combination frequency range, according to the carrier aggregation scheme determined, carries out transfer of data with terminal.

The structural representation of the terminal that Figure 10 provides for the embodiment of the present invention.As shown in Figure 10, this terminal comprises:

Processing module 1001, combination band information is supported for reporting to network side, support that combination band information is used to indicate the first communication standard of terminal support and the combination frequency range of second communication standard, for the combination frequency range that each terminal is supported, in this combination frequency range, carry out the tenability information of uplink and downlink transfer respectively to network side reporting terminal simultaneously;

Data transmission module 1002, carries out transfer of data for the carrier aggregation scheme determined according to network side and network side, and wherein, the carrier aggregation scheme support combination band information that to be network side report according to processing module 1001 and tenability information are determined.

Alternatively, processing module 1001 specifically for:

The first cell IE is sent, four kinds of different values corresponding the first ability information, the second ability information, the 3rd ability information and the 4th ability information respectively of an IE to network side; Or

The 2nd IE is sent to network side, the different values of two kinds of 2nd IE corresponding the first ability information and the 5th ability information respectively, wherein the 5th ability information is used to indicate tenability information and comprises one in the second ability information, the 3rd ability information and the 4th ability information;

If corresponding 5th ability information of the 2nd IE, then processing module 1001 also for: send different value corresponding the second ability information, the 3rd ability information and the 4th ability information respectively of the 3rd IE, the 3rd IE three kinds to network side.

Alternatively, processing module 1001 also for: report to network side support combination band information after, before data transmission module 1002 and network side carry out transfer of data, receive network side according to supporting available combination band information that combination band information is determined, the spendable combination frequency range of terminal from network side;

Data transmission module 1002 specifically for: processing module 1001 receive available combination band information instruction combination frequency range on, carry out transfer of data according to carrier aggregation scheme and network side.

The structural representation of the network equipment that Figure 11 provides for the embodiment of the present invention.As shown in figure 11, this network equipment comprises:

Processing module 1101, for the support combination band information that receiving terminal reports, support that combination band information is used to indicate the first communication standard of terminal support and the combination frequency range of second communication standard, the combination frequency range that receiving terminal is supported for each terminal reports, terminal carries out the tenability information of uplink and downlink transfer in combination frequency range simultaneously; And according to the support combination band information received and tenability information, determine the carrier aggregation scheme of carrying out transfer of data with terminal;

Data transmission module 1102, for the carrier aggregation scheme determined according to processing module 1101, carries out transfer of data with terminal.

Alternatively, processing module 1101 specifically for:

Four kinds of different values corresponding the first ability information, the second ability information, the 3rd ability information and the 4th ability information respectively of the first cell IE that receiving terminal sends, an IE; Or

The 2nd IE that receiving terminal sends, the different values of two kinds of 2nd IE corresponding the first ability information and the 5th ability information respectively, wherein the 5th ability information is used to indicate tenability information and comprises one in the second ability information, the 3rd ability information and the 4th ability information;

Alternatively, processing module 1101 when determining to carry out the carrier aggregation scheme of transfer of data with terminal, specifically for:

Processing module 1101, according to the support combination band information received, is determined to carry out the spendable combination frequency range of transfer of data with terminal;

Processing module 1101 is according to the spendable combination frequency range determined, determine the target carrier of carrying out transfer of data use with terminal, and according to the tenability information for spendable combination frequency range belonging to target carrier of terminal to report, determine the target carrier transmission plan carrying out transfer of data in target carrier with terminal.

Alternatively, processing module 1101 when determining target carrier transmission plan, specifically for:

If tenability information corresponding to the spendable combination frequency range belonging to target carrier comprises the first ability information, then determine to use this target carrier and terminal to carry out up-downgoing transfer of data.

Alternatively, processing module 1101 when determining target carrier transmission plan, specifically for: if tenability information corresponding to the spendable combination frequency range belonging to target carrier comprises the second ability information,

Determine to use the target carrier of the target carrier of the first communication standard frequency range and second communication standard frequency range and terminal to carry out transmitting uplink data; The target carrier of the first communication standard frequency range and terminal can be used to carry out downlink data transmission; Subframe and the terminal of target carrier that can use second communication standard frequency range, that do not conflict with the first communication standard frequency range transmitting uplink data carry out downlink data transmission;

Determine to use the target carrier of second communication standard frequency range and terminal to carry out transmitting uplink data, the target carrier of the target carrier of the first communication standard frequency range and second communication standard frequency range and terminal can be used to carry out downlink data transmission, and subframe and the terminal of target carrier that can use the first communication standard frequency range, that do not conflict with the downlink data transmission of second communication standard frequency range carrier wave carry out transmitting uplink data.

Alternatively, processing module 1101 when determining target carrier transmission plan, specifically for: if tenability information comprises the 3rd ability information,

Determine to use the target carrier of the target carrier of the first communication standard frequency range and second communication standard frequency range to carry out downlink data transmission with terminal respectively; The target carrier of the first communication standard frequency range and terminal can be used to carry out transmitting uplink data; Subframe and the terminal of target carrier that can use second communication standard frequency range, that do not conflict with the first communication standard frequency range downlink data transmission carry out transmitting uplink data;

Determine to use the target carrier of second communication standard frequency range and terminal to carry out downlink data transmission, the target carrier of the target carrier of the first communication standard frequency range and second communication standard frequency range and terminal can be used to carry out transmitting uplink data, the target carrier of the first communication standard frequency range and terminal can not be used to carry out downlink data transmission; Or

Determine to use the target carrier of the first communication standard frequency range and terminal to carry out transmitting uplink data, the target carrier of the target carrier of the first communication standard frequency range and second communication standard frequency range and terminal can be used to carry out downlink data transmission, and subframe and the terminal of target carrier that can use second communication standard frequency range, that do not conflict with the downlink data transmission of the first communication standard frequency range carry out transmitting uplink data.

Alternatively, processing module 1101 when determining target carrier transmission plan, specifically for: if tenability information comprises the 4th ability information,

Determine to use the target carrier of the first communication standard frequency range and terminal to carry out uplink and downlink transfer of data; Subframe and the terminal of target carrier that can use second communication standard frequency range, that do not conflict with the first communication standard frequency range transmitting uplink data carry out downlink data transmission; Subframe and the terminal of target carrier that can use second communication standard frequency range, that do not conflict with the first communication standard frequency range downlink data transmission carry out transmitting uplink data;

Determine to use the target carrier of second communication standard frequency range and terminal to carry out uplink and downlink transfer of data; The target carrier of the first communication standard frequency range and terminal can not be used to carry out upstream or downstream transfer of data; Or

Determine to use the target carrier of the first communication standard frequency range and terminal to carry out uplink and downlink transfer of data, subframe and the terminal of target carrier that can use second communication standard frequency range, that do not conflict with the first communication standard frequency range transmitting uplink data carry out downlink data transmission; Subframe and the terminal of target carrier that can use second communication standard frequency range, that do not conflict with the first communication standard frequency range downlink data transmission carry out transmitting uplink data.

Alternatively, processing module 1101 also for: after determining spendable combination frequency range, before data transmission module 1102 and terminal carry out transfer of data, the available combination band information being used to indicate spendable combination frequency range is sent to terminal, to make terminal determine spendable combination frequency range according to the available combination band information received, and carry out transfer of data with network side in the spendable combination frequency range determined;

Data transmission module 1102 specifically for: in the spendable combination frequency range that processing module 1101 is determined, according to the carrier aggregation scheme that processing module 1101 is determined, carry out transfer of data with terminal.

To sum up, embodiments provide a kind of method, apparatus and system of transfer of data, according to the method, apparatus and system that the embodiment of the present invention provides, can for the transmission of TDD and FDD carrier aggregation, network side base station is in conjunction with terminal capability, determine the transmission means in each target carrier, thus effectively avoid producing interference mutually between the carrier wave of the contrary information of carrying transmission direction, ensure the transmission performance of TDD and FDD carrier aggregation, make the scheduling of network side according to the ability of terminal more flexibly, the communication quality ensureing network and terminal can be conducive to.

Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.

The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.

Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims

1. a method for transfer of data, is characterized in that, described method comprises:

The carrier aggregation scheme that described terminal is determined according to described network side and described network side carry out transfer of data, wherein, described carrier aggregation scheme is that described network side is determined according to the described support combination band information of described terminal to report and described tenability information.

2. the method for claim 1, is characterized in that, described tenability information comprises the one in following ability information:

3. method as claimed in claim 2, it is characterized in that, described terminal reports described tenability information to network side, comprising:

4. the method for claim 1, is characterized in that, after described terminal reports support combination band information to described network side, before carrying out transfer of data with described network side, described method also comprises:

5. the method as described in any one of Claims 1 to 4, is characterized in that, described first communication standard comprises: time division multiplexing TDD communication standard; Described second communication standard comprises: frequency division multiplexing FDD communication standard.

6. a method for transfer of data, is characterized in that, described method comprises:

7. method as claimed in claim 6, it is characterized in that, described tenability information comprises the one in following ability information:

8. method as claimed in claim 7, it is characterized in that, described network side receives the described tenability information of described terminal to report, comprising:

9. method as claimed in claim 7, is characterized in that, described network side, according to the described support combination band information received and described tenability information, is determined the carrier aggregation scheme of carrying out transfer of data with described terminal, being comprised:

10. method as claimed in claim 9, it is characterized in that, described network side determines described target carrier transmission plan, comprising:

11. methods as claimed in claim 9, it is characterized in that, described network side determines described target carrier transmission plan, comprising: if described tenability information corresponding to the spendable combination frequency range belonging to target carrier comprises the second ability information,

12. methods as claimed in claim 9, it is characterized in that, described network side determines described target carrier transmission plan, comprising: if described tenability information comprises the 3rd ability information,

13. methods as claimed in claim 9, it is characterized in that, described network side determines described target carrier transmission plan, comprising: if described tenability information comprises the 4th ability information,

14. methods as claimed in claim 9, is characterized in that,

After described network side determines described spendable combination frequency range, before carrying out transfer of data with described terminal, described method also comprises:

15. methods as described in any one of claim 6 ~ 14, it is characterized in that, described first communication standard comprises: time division multiplexing TDD communication standard; Described second communication standard comprises: frequency division multiplexing FDD communication standard.

16. 1 kinds of terminals, is characterized in that, described terminal comprises:

Data transmission module, transfer of data is carried out for the carrier aggregation scheme determined according to described network side and described network side, wherein, described carrier aggregation scheme is that described network side combines band information according to the described support that described processing module reports and described tenability information is determined.

17. terminals as claimed in claim 16, it is characterized in that, described tenability information comprises the one in following ability information:

18. terminals as claimed in claim 17, is characterized in that, described processing module specifically for:

19. terminals as claimed in claim 16, is characterized in that,

Described processing module also for: report to described network side support combination band information after, before described data transmission module and described network side carry out transfer of data, receive described network side from described network side and support available combination band information that combination band information is determined, the spendable combination frequency range of described terminal according to described;

20. terminals as described in any one of claim 16 ~ 19, it is characterized in that, described first communication standard comprises: time division multiplexing TDD communication standard; Described second communication standard comprises: frequency division multiplexing FDD communication standard.

21. 1 kinds of network equipments, is characterized in that, described network equipment comprises:

22. network equipments as claimed in claim 21, it is characterized in that, described tenability information comprises the one in following ability information:

23. network equipments as claimed in claim 22, is characterized in that, described processing module specifically for:

24. network equipments as claimed in claim 22, is characterized in that, described processing module when determining to carry out the carrier aggregation scheme of transfer of data with described terminal, specifically for:

25. network equipments as claimed in claim 24, is characterized in that, described processing module when determining described target carrier transmission plan, specifically for:

26. network equipments as claimed in claim 24, it is characterized in that, described processing module when determining described target carrier transmission plan, specifically for: if described tenability information corresponding to the spendable combination frequency range belonging to target carrier comprises the second ability information

27. network equipment as claimed in claim 24, is characterized in that, described processing module when determining described target carrier transmission plan, specifically for: if described tenability information comprises the 3rd ability information,

28. network equipment as claimed in claim 24, is characterized in that, described processing module when determining described target carrier transmission plan, specifically for: if described tenability information comprises the 4th ability information,

29. network equipments as claimed in claim 24, it is characterized in that, described processing module also for: after determining described spendable combination frequency range, before described data transmission module and described terminal carry out transfer of data, the available combination band information being used to indicate described spendable combination frequency range is sent to described terminal, to make described terminal determine described spendable combination frequency range according to the described available combination band information received, and carry out transfer of data with described network side in the described spendable combination frequency range determined;

30. network equipments as described in any one of claim 21 ~ 29, it is characterized in that, described first communication standard comprises: time division multiplexing TDD communication standard; Described second communication standard comprises: frequency division multiplexing FDD communication standard.

31. 1 kinds of data transmission systems, is characterized in that, described system comprises: