CN102035594A - Data transmitting method and device and radio frame - Google Patents
Data transmitting method and device and radio frame Download PDFInfo
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- CN102035594A CN102035594A CN2010105814864A CN201010581486A CN102035594A CN 102035594 A CN102035594 A CN 102035594A CN 2010105814864 A CN2010105814864 A CN 2010105814864A CN 201010581486 A CN201010581486 A CN 201010581486A CN 102035594 A CN102035594 A CN 102035594A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
- H04B7/2656—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA] for structure of frame, burst
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Abstract
The invention provides data transmitting method and device and a radio frame. In the method, a preset uplink and downlink configuration mode is set, wherein by the preset upstream and downstream configuration mode, 10 subframes in one radio frame is configured in such a way that a first subframe, a fifth subframe, a sixth subframe, a ninth subframe and a tenth subframe are downlink subframes, a third subframe, a fourth subframe and a eighth subframe are upstream subframes, and a second subframe and a seventh subframe are special subframes. The invention has the advantage of improving the stability of upstream and downstream transfer of the subframes.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of data transmission method, device and radio frames.
Background technology
Be that unit carries out in the wireless system of transfer of data with radio frames (Radio frame), the Uplink/Downlink of radio open transmission is that unit transmits data with Radio frame generally; Wherein, each Radio frame is made up of several subframes (Subframe), and Subframe all forms for base unit with OFDM (Orthogonal Frequency Division Multiplexing abbreviates OFDM as) symbol (Symbol).For Long Term Evolution (Long-Term Evolution abbreviates LTE as) system, each Radio frame is made up of 10 Subframe.
Present LTE, micro-wave access to global intercommunication (Worldwide Interoperability for Microwave Access, abbreviate Wimax as), super mobile broadband (Ultra Mobile Broadband, abbreviating UMB as) all there are two kinds of duplex modes in system: Frequency Division Duplexing (FDD) (Frequency Division Duplex, abbreviate FDD as) mode and time division duplex (Time Division Duplex abbreviates TDD as) mode.
Under the FDD mode, Uplink/Downlink adopts different frequency bands to carry out transfer of data, like this, and in the system/resource allocation of descending sub frame (Subframes) is relatively independent, that is, can carry out resource allocation respectively to descending sub frame (Subframes) and sub-frame of uplink (Subframes).
Under the TDD mode, because Uplink/Downlink uses identical frequency range timesharing to transmit, like this, according to the needs of business, system can be divided into sub-frame of uplink and descending sub frame with some subframes of radio frames according to certain ratio.The ratio of general TDD system uplink subframe and descending sub frame number all has some kinds, to satisfy the needs of different service types.
According to the needs of different regions type of service, select appropriate up-downgoing proportional arrangement to help improving the spectrum efficiency of TDD system.Such as, for the professional many areas of data download, just can select the many configurations of descending sub frame; For the professional many areas that upload data, just can select the many configurations of sub-frame of uplink; For the area that last download data business volume compares balance, just can select the subequal proportional arrangement of ascending-descending subframes.In present LTE TDD (or being called TD-LTE) system, TDD up-downgoing proportional arrangement has been set 7 kinds, as shown in table 1 below.A radio frames has comprised 10 subframes, and subframe numbers is labeled as respectively: 0,1,2,3,4,5,6,7,8,9." D " represents that this subframe is a descending sub frame; " U " represents that this subframe is a sub-frame of uplink; " S " represents that this subframe is a special subframe, and promptly this subframe part of both having included uplink also includes the part of downlink transfer.
Table 1 ascending-descending subframes allocation list
Data transmission method in the correlation technique, for the TDD system realm that adopts a certain configuration, when different type of service demands appearred in this zone, this zone just need convert another uplink-downlink configuration to, to improve the spectrum efficiency of TDD system.Such as, if be configured to 1 TDD system realm, when situation that descending data download business increases appears in this zone, just need to convert this zone to descending sub frame and relatively more be configured to 2 TDD system for employing.Like this, the subframe that upstream data will occur sending out has originally no longer been sent out upstream data, gives line data and change into.But in this process, can occur having simultaneously in sub-frame of uplink and the descending sub frame a plurality of subframes to change, cause control information to send position more complicated and confusion when dynamic change, thereby the complexity that causes system handles is than higher and cause system break.
Summary of the invention
Main purpose of the present invention is to provide a kind of data transmission method, device and radio frames, to solve data transmission method causes in the above-mentioned correlation technique system handles complexity than higher and cause the problem of system break.
To achieve these goals, according to an aspect of the present invention, provide a kind of data transmission method, be applied to TDD system.
Data transmission method according to the present invention comprises: predetermined uplink-downlink configuration mode is set, wherein, predetermined uplink-downlink configuration mode is configured to 10 subframes in the radio frames: first subframe, the 5th subframe, the 6th subframe, the 9th subframe and the tenth subframe are descending sub frame, the 3rd subframe, the 4th subframe and the 8th subframe are sub-frame of uplink, and second subframe and the 6th subframe are special subframe; Use predetermined uplink-downlink configuration mode to carry out transfer of data.
Further, main carrier uses the radio frames of one of uplink-downlink configuration mode that LTE R8 TDD system has configuration on it; Auxilliary carrier wave uses one of following configuration mode to dispose radio frames on it: one of uplink-downlink configuration mode that predetermined uplink-downlink configuration mode, LTE R8 TDD system have.
Further, the uplink-downlink configuration mode 0 to 6 that LTE R8 TDD system has is for shown in the following table 1: wherein, D sign subframe is a descending sub frame, and U sign subframe is a sub-frame of uplink, and S sign subframe is a special subframe.
Further, said method also comprises: when uplink-downlink configuration mode 1 is converted to uplink-downlink configuration mode 2, earlier the radio frames configuration is converted to predetermined uplink-downlink configuration mode from uplink-downlink configuration mode 1 in radio frames configuration; Again the radio frames configuration is converted to uplink-downlink configuration mode 2 from predetermined uplink-downlink configuration mode, wherein, in each uplink-downlink configuration mode transfer process, have only a subframe to change in the radio frames, it is one of following that radio frames is configured to: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.
Further, said method also comprises: when ascending-descending subframes configuration mode 2 is converted to uplink-downlink configuration mode 1, earlier the radio frames configuration is converted to predetermined uplink-downlink configuration mode from uplink-downlink configuration mode 2 in radio frames configuration; Again the radio frames configuration is converted to uplink-downlink configuration mode 1 from predetermined uplink-downlink configuration mode, wherein, in each uplink-downlink configuration mode transfer process, have only a subframe to change in the radio frames, it is one of following that radio frames is configured to: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.
Further, said method also comprises: when uplink-downlink configuration mode 1 is converted to uplink-downlink configuration mode 3, earlier the radio frames configuration is converted to predetermined uplink-downlink configuration mode from uplink-downlink configuration mode 1 in radio frames configuration; Again radio frames configuration is converted to uplink-downlink configuration mode 3 from predetermined uplink-downlink configuration mode, wherein, it is one of following that radio frames is configured to: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.
Further, said method also comprises: when uplink-downlink configuration mode 3 is converted to uplink-downlink configuration mode 1, earlier the radio frames configuration is converted to predetermined uplink-downlink configuration mode from uplink-downlink configuration mode 3 in radio frames configuration; Again radio frames configuration is converted to uplink-downlink configuration mode 1 from predetermined uplink-downlink configuration mode, wherein, it is one of following that radio frames is configured to: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.
Further, said method also comprises: use following order to carry out the conversion of radio frames configuration: uplink-downlink configuration mode 0---＞uplink-downlink configuration mode 6---＞uplink-downlink configuration mode 1---＞predetermined uplink-downlink configuration mode---＞uplink-downlink configuration mode 2---＞uplink-downlink configuration mode 5, wherein, radio frames is configured to one of following: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.
Further, said method also comprises: use following order to carry out the conversion of radio frames configuration: uplink-downlink configuration mode 5---＞uplink-downlink configuration mode 4---＞uplink-downlink configuration mode 3---＞predetermined uplink-downlink configuration mode---＞uplink-downlink configuration mode 1---＞uplink-downlink configuration mode 6---＞uplink-downlink configuration mode 0, wherein, radio frames is configured to one of following: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.
Further, said method also comprises: use following order to carry out the conversion of radio frames configuration: uplink-downlink configuration mode 5---＞uplink-downlink configuration mode 2---＞predetermined uplink-downlink configuration mode---＞uplink-downlink configuration mode 1---＞uplink-downlink configuration mode 6---＞uplink-downlink configuration mode 0, wherein, radio frames is configured to one of following: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.
To achieve these goals, according to a further aspect in the invention, provide a kind of data transmission device.
Data transmission device according to the present invention comprises: module is set, be used for being provided with the predetermined uplink-downlink configuration mode of the sub-frame formats of radio frames, wherein, predetermined uplink-downlink configuration mode is configured to 10 subframes in the radio frames: first subframe, the 5th subframe, the 6th subframe, the 9th subframe and the tenth subframe are descending sub frame, the 3rd subframe, the 4th subframe and the 8th subframe are sub-frame of uplink, and second subframe and the 6th subframe are special subframe; Transport module is used to use predetermined uplink-downlink configuration mode to carry out transfer of data.
To achieve these goals, in accordance with a further aspect of the present invention, also provide a kind of radio frames.
Radio frames according to the present invention comprises 10 subframes, wherein, first subframe, the 5th subframe, the 6th subframe, the 9th subframe and the tenth subframe are descending sub frame, and the 3rd subframe, the 4th subframe and the 8th subframe are sub-frame of uplink, and second subframe and the 6th subframe are special subframe.
By the present invention, employing is provided with a kind of predetermined uplink-downlink configuration mode, wherein, predetermined uplink-downlink configuration mode is configured to 10 subframes in the radio frames: first subframe, the 5th subframe, the 6th subframe, the 9th subframe and the tenth subframe are descending sub frame, the 3rd subframe, the 4th subframe and the 8th subframe are sub-frame of uplink, second subframe and the 6th subframe are special subframe, solved and to have occurred having a plurality of subframes to change in sub-frame of uplink and the descending sub frame simultaneously in the correlation technique in the sub-frame formats transfer process, cause control information to send position more complicated and confusion when dynamic change, thereby the complexity that causes system handles is than higher and cause the problem of system break.Thereby improved the stability of subframe up-downgoing conversion, improved the reliability of system then.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the data transmission method of the embodiment of the invention;
Fig. 2 is the structured flowchart according to the data transmission device of the embodiment of the invention; And
Fig. 3 is the preferred construction block diagram according to the data transmission device of the embodiment of the invention.
Embodiment
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Present embodiment provides a kind of data transmission method, is applied to time division duplex (TDD) system, and Fig. 1 is the flow chart according to the data transmission method of the embodiment of the invention, and as shown in Figure 1, this method comprises:
Step S102: the predetermined uplink-downlink configuration mode in the sub-frame formats of radio frames is set, wherein, predetermined uplink-downlink configuration mode is configured to 10 subframes in the radio frames: first subframe, the 5th subframe, the 6th subframe, the 9th subframe and the tenth subframe are descending sub frame, the 3rd subframe, the 4th subframe and the 8th subframe are sub-frame of uplink, and second subframe and the 6th subframe are special subframe;
Step S104: use predetermined uplink-downlink configuration mode to carry out transfer of data;
Pass through above-mentioned steps, a kind of predetermined uplink-downlink configuration mode is set, predetermined uplink-downlink configuration mode is configured to 10 subframes in the radio frames: first subframe, the 5th subframe, the 6th subframe, the 9th subframe and the tenth subframe are descending sub frame, the 3rd subframe, the 4th subframe and the 8th subframe are sub-frame of uplink, second subframe and the 6th subframe are special subframe, overcome and to have occurred having a plurality of subframes to change in sub-frame of uplink and the descending sub frame simultaneously in the correlation technique in the sub-frame formats transfer process, cause control information to send position more complicated and confusion when dynamic change, thereby the complexity that causes system handles is than higher and cause the problem of system break.Thereby improved the stability of subframe up-downgoing conversion, improved the reliability of system then.
Preferably, main carrier uses the subframe of one of uplink-downlink configuration mode that LTE R8 TDD system has configuration on it; Auxilliary carrier wave uses one of following configuration mode to dispose subframe on it: one of uplink-downlink configuration mode that predetermined uplink-downlink configuration mode, LTE R8 TDD system have.Pass through the preferred embodiment, guaranteed the sub-frame formats configuration of main carrier according to the existing protocol regulation, auxilliary carrier wave is configured according to the sub-frame formats and the conversion sub-frame formats of existing protocol regulation, has realized the compatibility to existing system, has improved the flexibility of sub-frame configuration.
Need to prove, though the uplink-downlink configuration mode that the uplink-downlink configuration mode that limits in the above-mentioned configuration has for LTE R8 TDD system, but because the backwards compatibility of LTE system, for the TDD system of R9 or R10 series equally including but not limited to above-mentioned uplink-downlink configuration mode, so the data transmission scheme in the present embodiment is not only applicable to LTE R8 TDD system, be equally applicable to LTE TDD system with other versions of LTE R8 TDD system compatible.
Preferably, the uplink-downlink configuration mode 0 to 6 of above-mentioned LTE R8 TDD system configuration is shown in the table 1: wherein, D sign subframe is a descending sub frame, and U sign subframe is a sub-frame of uplink, and S sign subframe is a special subframe.By the preferred embodiment, under the sub-frame formats of existing protocol configuration, realize the smooth conversion of uplink-downlink configuration form, improved the stability of a system.
Preferably, said method also comprises: when uplink-downlink configuration mode 1 is converted to uplink-downlink configuration mode 2, earlier the radio frames configuration is converted to predetermined uplink-downlink configuration mode from uplink-downlink configuration mode 1 in radio frames configuration; Again the radio frames configuration is converted to uplink-downlink configuration mode 2 from predetermined uplink-downlink configuration mode, wherein, in each uplink-downlink configuration mode transfer process, have only a subframe to change in the radio frames, it is one of following that radio frames is configured to: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.
Preferably, when ascending-descending subframes configuration mode 2 is converted to ascending-descending subframes configuration mode 1, earlier the radio frames configuration is converted to predetermined uplink-downlink configuration mode from ascending-descending subframes configuration mode 2 in radio frames configuration; Again the radio frames configuration is converted to ascending-descending subframes configuration mode 1 from predetermined uplink-downlink configuration mode, wherein, in each uplink-downlink configuration mode transfer process, have only a subframe to change in the radio frames, it is one of following that radio frames is configured to: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.
Preferably, said method also comprises: when ascending-descending subframes configuration mode 1 is converted to ascending-descending subframes configuration mode 3, earlier the radio frames configuration is converted to predetermined uplink-downlink configuration mode from ascending-descending subframes configuration mode 1 in radio frames configuration; Again sub-frame configuration is converted to ascending-descending subframes configuration mode 3 from predetermined uplink-downlink configuration mode, wherein, it is one of following that radio frames is configured to: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.By the preferred embodiment, the radio frames configuration that has realized sub-district or carrier wave has improved the efficient and the stationarity of conversion from the smooth conversion of mode 1 to mode 3.
Preferably, when ascending-descending subframes configuration mode 3 is converted to ascending-descending subframes configuration mode 1, earlier the radio frames configuration is converted to predetermined uplink-downlink configuration mode from ascending-descending subframes configuration mode 3 in radio frames configuration; Again radio frames configuration is converted to ascending-descending subframes configuration mode 1 from predetermined uplink-downlink configuration mode, wherein, it is one of following that radio frames is configured to: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.By the preferred embodiment, the radio frames configuration that has realized sub-district or carrier wave has improved the efficient and the stationarity of conversion from the smooth conversion of mode 3 to mode 1.
Preferably, use following order to carry out the conversion of radio frames configuration: ascending-descending subframes configuration mode 0---＞uplink-downlink configuration mode 6---＞uplink-downlink configuration mode 1---＞predetermined uplink-downlink configuration mode---＞uplink-downlink configuration mode 2---＞uplink-downlink configuration mode 5, wherein, radio frames is configured to one of following: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.By the preferred embodiment, realized the smooth conversion of the radio frames configuration of sub-district or carrier wave downwards from the sub-frame of uplink mode more than the capable subframe of multimode, improved the efficient and the stationarity of conversion.
Preferably, use following order to carry out the conversion of radio frames configuration: uplink-downlink configuration mode 5---＞uplink-downlink configuration mode 4---＞uplink-downlink configuration mode 3---＞predetermined uplink-downlink configuration mode---＞uplink-downlink configuration mode 1---＞uplink-downlink configuration mode 6---＞uplink-downlink configuration mode 0, wherein, radio frames is configured to one of following: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.By the preferred embodiment, realized the smooth conversion of the radio frames configuration of sub-district or carrier wave from the descending sub frame mode more than the upwards capable subframe of multimode, improved the efficient and the stationarity of conversion.
Preferably, use following order to carry out the conversion of radio frames configuration: uplink-downlink configuration mode 5---＞uplink-downlink configuration mode 2---＞predetermined uplink-downlink configuration mode---＞uplink-downlink configuration mode 1---＞uplink-downlink configuration mode 6---＞uplink-downlink configuration mode 0, wherein, radio frames is configured to one of following: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.By the preferred embodiment, the radio frames configuration that has realized sub-district or carrier wave has improved the efficient and the stationarity of conversion from the smooth conversion of the more mode of descending sub frame to the more mode of sub-frame of uplink.
Preferred embodiment
Present embodiment provides a kind of data transmission method, present embodiment combines the foregoing description and preferred implementation wherein, the UL-DL configuration mode of data transmission method both can be used in an independently TDD system realm in the present embodiment, also can be used in certain the subcarrier TDD configuration in the multicarrier system.
In the present embodiment, a radio frames has comprised 10 subframes, and subframe numbers is labeled as respectively: 0,1,2,3,4,5,6,7,8,9.Subframe 0 is a descending sub frame; Subframe 1 is a special subframe; Subframe 2,3 is a sub-frame of uplink; Subframe 4,5 is a descending sub frame; Subframe 6 is a special subframe; Subframe 7 is a sub-frame of uplink; Subframe 8,9 is a descending sub frame;
Table 2 subframe transformat signal table
As shown in Table 2: a radio frames has comprised 10 subframes, and subframe numbers is labeled as respectively: 0,1,2,3,4,5,6,7,8,9." D " represents that this subframe is a descending sub frame; " U " represents that this subframe is a sub-frame of uplink; " S " represents that this subframe is a special subframe, and promptly this subframe part of both having included uplink also includes the part of downlink transfer.
In the present embodiment new TDD uplink-downlink configuration mode is called: uplink-downlink configuration 7.The TDD system uses 3 Bit datas to represent 8 kinds of uplink-downlink configuration; Be expressed as follows with form:
Table 3 ascending-descending subframes configuration signal table
As shown in Table 3, originally 7 kinds of uplink-downlink configuration of time-division Long Term Evolution (TD-LTE) system need 3 Bit datas to represent that the TDD system represents 8 kinds of uplink-downlink configuration after this 3 Bit data is encoded according to certain rule.After increasing a kind of new uplink-downlink configuration mode now, still can represent with 3 Bit datas.Therefore not extra increase overhead, and can make full use of this 3 Bit data resource.
Data transmission method in the present embodiment comprises following mode:
Mode one: when the sub-district of adopting TDD uplink-downlink configuration 1 will convert TDD uplink-downlink configuration 2 to, this sub-district need convert TDD uplink-downlink configuration 7 earlier to, and then converts TDD uplink-downlink configuration 2 to; In like manner, when the sub-district of adopting TDD uplink-downlink configuration 2 will convert TDD uplink-downlink configuration 1 to, this sub-district need convert TDD uplink-downlink configuration 7 earlier to, and then converts TDD uplink-downlink configuration 1 to.
Need to prove that in a radio frames, TDD uplink-downlink configuration 7 is than configuration descending sub frame more than 1, also Duo a descending sub frame than disposing 7 and dispose 2.Configuration 1 converts configuration 7 earlier to and then converts configuration 2 to, perhaps disposing 2 converts configuration 7 earlier to and then converts configuration 1 to, make the TDD uplink-downlink configuration of sub-district change and have continuity, help guaranteeing that afoot business do not interrupt and reduce the complexity of system handles.
Mode two
When the carrier wave that adopts TDD uplink-downlink configuration 1 will convert TDD uplink-downlink configuration 2 to, this carrier wave need convert TDD uplink-downlink configuration 7 earlier to, and then converts TDD uplink-downlink configuration 2 to; In like manner, when the carrier wave that adopts TDD uplink-downlink configuration 2 will convert TDD uplink-downlink configuration 1 to, this carrier wave need convert TDD uplink-downlink configuration 7 earlier to, and then converts TDD uplink-downlink configuration 1 to.
Need to prove, be configured to 1 TDD system realm, when situation that descending data download business increases appears in this zone, just need to convert this zone to descending sub frame and relatively more be configured to 2 TDD system for employing.Like this, the subframe that upstream data will occur sending out has originally no longer been sent out upstream data, gives line data and change into.Configuration 1 with dispose 2 between in a radio frames, have 2 subframes different, if system will carry out dynamic mapping between configuration 1 and configuration 2, cause control information to send position more complicated and confusion when dynamic change easily, and cause professional interruption easily.Therefore,, use configuration 7 to carry out intermediate conversion, can guarantee under the situation of non-interrupting service, to change uplink-downlink configuration smoothly if make the TD-LTE system realize high efficiency dynamic mapping in configuration 1 and between disposing 2, and the complexity of reduction system conversion.
When if the TD-LTE system of employing configuration 1 and employing configuration 2 is adjacent, it is the configuration of adopting the gap frame that the centre just needs a zone, with isolation up-downgoing interference.But owing to there are 2 subframes will be arranged to the gap frame in a radio frames, the wasting of resources in therefore middle this piece zone is just bigger, may reduce the efficient of whole TD-LTE grid on the contrary.
Mode three
When the sub-district of adopting TDD uplink-downlink configuration 3 will convert TDD uplink-downlink configuration 1 to, this sub-district need convert TDD uplink-downlink configuration 7 earlier to, and then convert TDD uplink-downlink configuration 1 to, in like manner, when the carrier wave that adopts TDD uplink-downlink configuration 3 will convert TDD uplink-downlink configuration 1 to, this carrier wave need convert TDD uplink-downlink configuration 7 earlier to, and then converts TDD uplink-downlink configuration 1 to.
Need to prove that in the manner, in a radio frames, TDD uplink-downlink configuration 7 is than configuration descending sub frame more than 1, also Duo a descending sub frame than disposing 7 and dispose 3.Configuration 3 converts configuration 7 earlier to and then converts configuration 1 to, makes the TDD uplink-downlink configuration of sub-district change and has continuity, helps guaranteeing that afoot business do not interrupt and reduce the complexity of system handles.
Mode four
When the carrier wave that adopts TDD uplink-downlink configuration 3 will convert TDD uplink-downlink configuration 1 to, this carrier wave need convert TDD uplink-downlink configuration 7 earlier to, and then convert TDD uplink-downlink configuration 1 to, in like manner, when the carrier wave that adopts TDD uplink-downlink configuration 1 will convert TDD uplink-downlink configuration 3 to, this carrier wave need convert TDD uplink-downlink configuration 7 earlier to, and then converts TDD uplink-downlink configuration 3 to.
Mode five
When sub-district during, need carry out according to following conversion sequence from up more configuration transitions to descending more configuration:
Configuration 0---＞configuration 6---＞configuration 1---＞configuration 7---＞configuration 2---＞configuration 5.
Mode six
When certain carrier wave during, need carry out according to following conversion sequence from up more configuration transitions to descending more configuration:
Configuration 0---＞configuration 6---＞configuration 1---＞configuration 7---＞configuration 2---＞configuration 5.
Mode eight
When sub-district during, need carry out according to following conversion sequence from descending more configuration transitions to up more configuration:
Configuration 5---＞configuration 4---＞configuration 3---＞configuration 7---＞configuration 1---＞configuration 6---＞configuration 0.
Mode nine
When certain carrier wave during, need carry out according to following conversion sequence from descending more configuration transitions to up more configuration:
Configuration 5---＞configuration 4---＞configuration 3---＞configuration 7---＞configuration 1---＞configuration 6---＞configuration 0.
Mode ten
When sub-district during, can also carry out as follows according to another conversion sequence from descending more configuration transitions to up more configuration:
Configuration 5---＞configuration 2---＞configuration 7---＞configuration 1---＞configuration 6---＞configuration 0.
As can be seen, increased after the TDD uplink-downlink configuration 7, the uplink-downlink configuration of TD-LTE system changes and to have continuity more, helps guaranteeing that afoot business do not interrupt and reduce the complexity of system handles.
Mode 11
When certain carrier wave during, can also carry out as follows according to another conversion sequence from descending more configuration transitions to up more configuration:
Configuration 5---＞configuration 2---＞configuration 7---＞configuration 1---＞configuration 6---＞configuration 0.
Preferably, in multi-carrier-wave TDD system, main carrier adopts any in uplink-downlink configuration 0, configuration 1, configuration 2, configuration 3, configuration 4, configuration 5, configuration 6 these 7 kinds of configurations; Some subcarriers can adopt uplink-downlink configuration 0 to configuration any in 7 these 8 kinds of configurations.Like this, main carrier adopts original configuration can keep the backwards compatibility problem of terminal well; Subcarrier adopts new configuration 7 can strengthen the flexibility of terminal in TDD configuration dynamic change well.
Need to prove that the tdd frame structure in 5ms cycle is more having superiority aspect the delay sensitive business than the tdd frame structure in 10ms cycle, therefore increases the method for using present embodiment in the 5ms cycle, increases and disposes 7, makes system configuration more reasonable.And disposing 7 the suitable present data service type of up-downgoing ratio, usage frequency is very high, improves system transmissions efficient.And the ratio that disposes the uplink transmission resource of 1 and 2 these dual modes and downlink transfer resource is more moderate, can adapt to type of service and use in the zone that constantly changes, so can be more when adopting configuration 1 and configuration 2 in the practical application of TD-LTE system.Like this, if a kind of configuration 7 of increase between configuration 1 and configuration 2, the application scenarios of this new configuration also can be many, transfer of data that can optimization system.
Present embodiment provides a kind of data transmission device, and Fig. 2 is the structured flowchart according to the data transmission device of the embodiment of the invention, and as shown in Figure 2, this device comprises: module 22 and transport module 24 are set, below said structure are described in detail:
Module 22 is set, be used for being provided with the predetermined uplink-downlink configuration mode of the sub-frame formats of radio frames, wherein, predetermined uplink-downlink configuration mode is configured to 10 subframes in the radio frames: first subframe, the 5th subframe, the 6th subframe, the 9th subframe and the tenth subframe are descending sub frame, the 3rd subframe, the 4th subframe and the 8th subframe are sub-frame of uplink, and second subframe and the 6th subframe are special subframe; Transport module 24 is connected to module 22 is set, and is used to use module is set the 22 described predetermined uplink-downlink configuration modes that are provided with are set carry out transfer of data.
Fig. 3 is the preferred construction block diagram according to the data transmission device of the embodiment of the invention, as shown in Figure 3, this device also comprises: the first sub-frame configuration module 32, the second sub-frame configuration module 34, the first conversion submodule 241, the first format conversion submodule, 242, the second conversion submodules, 243, the second format conversion submodules 244, the 3rd conversion submodule 245, the 3rd format conversion submodule 246, the four conversion submodules 247, the four format conversion submodules 248, the 5th conversion submodule 249, the 6th conversion submodule 250, the seven conversion submodules 251 are described in detail said structure below:
Said apparatus also comprises: the first sub-frame configuration module 32 is used to dispose main carrier and uses the subframe of one of uplink-downlink configuration mode that LTE R8 TDD system has configuration on it; The second sub-frame configuration module 34 is used for auxilliary carrier wave and uses one of following configuration mode to dispose subframe on it: the uplink-downlink configuration mode that predetermined uplink-downlink configuration mode, LTE R8 TDD system have it
The first conversion submodule 241 is used in radio frames configuration the radio frames configuration being converted to predetermined uplink-downlink configuration mode from uplink-downlink configuration mode 1 when uplink-downlink configuration mode 1 is converted to uplink-downlink configuration mode 2; The first format conversion submodule 242, be connected to the first conversion submodule 241, be used for the radio frames configuration that the first conversion submodule 241 is converted to is converted to uplink-downlink configuration mode 2 from predetermined uplink-downlink configuration mode, wherein, in each uplink-downlink configuration mode transfer process, have only a subframe to change in the radio frames, it is one of following that radio frames is configured to: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.
The second conversion submodule 243 is used in radio frames configuration the radio frames configuration being converted to predetermined uplink-downlink configuration mode from uplink-downlink configuration mode 2 when uplink-downlink configuration mode 2 is converted to uplink-downlink configuration mode 1; The second format conversion submodule 244, be connected to the second conversion submodule 243, be used for the radio frames configuration that the second conversion submodule 243 is converted to is converted to uplink-downlink configuration mode 1 from predetermined uplink-downlink configuration mode, wherein, in each uplink-downlink configuration mode transfer process, have only the subframe radio frames that changes to be configured to one of following in the radio frames: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.
The 3rd conversion submodule 245 is used in radio frames configuration the radio frames configuration being converted to predetermined uplink-downlink configuration mode from ascending-descending subframes configuration mode 1 when uplink-downlink configuration mode 1 is converted to uplink-downlink configuration mode 3; The 3rd format conversion submodule 246, be connected to the 3rd conversion submodule 245, be used for the radio frames configuration that the 3rd conversion submodule 245 is converted to is converted to uplink-downlink configuration mode 3 from predetermined uplink-downlink configuration mode, wherein, radio frames is configured to one of following: the subframe radio frames configuration of sub-district, the radio frames configuration of carrier wave.
The 4th conversion submodule 247 is used in radio frames configuration the radio frames configuration being converted to predetermined uplink-downlink configuration mode from uplink-downlink configuration mode 3 when uplink-downlink configuration mode 3 is converted to uplink-downlink configuration mode 1; The 4th format conversion submodule 248, be connected to the 4th conversion submodule 247, be used for the radio frames configuration that the 4th conversion submodule 247 is converted to is converted to uplink-downlink configuration mode 1 from predetermined uplink-downlink configuration mode, wherein, radio frames is configured to one of following: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.
The 5th conversion submodule 249, be used to use following order to carry out the conversion of radio frames configuration: uplink-downlink configuration mode 0---＞uplink-downlink configuration mode 6---＞uplink-downlink configuration mode 1---＞predetermined uplink-downlink configuration mode---＞ascending-descending subframes configuration mode 2---＞ascending-descending subframes configuration mode 5, wherein, radio frames is configured to one of following: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.
The 6th conversion submodule 250, be used to use following order to carry out the conversion of radio frames configuration: uplink-downlink configuration mode 5---＞uplink-downlink configuration mode 4---＞uplink-downlink configuration mode 3---＞predetermined uplink-downlink configuration mode---＞uplink-downlink configuration mode 1---＞uplink-downlink configuration mode 6---＞uplink-downlink configuration mode 0, wherein, radio frames is configured to one of following: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.
The 7th conversion submodule 251, be used to use following order to carry out the conversion of radio frames configuration: uplink-downlink configuration mode 5---＞uplink-downlink configuration mode 2---＞predetermined uplink-downlink configuration mode---＞uplink-downlink configuration mode 1---＞uplink-downlink configuration mode 6---＞uplink-downlink configuration mode 0, wherein, radio frames is configured to one of following: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.
Present embodiment provides a kind of radio frames, this radio frames comprises 10 subframes, and wherein, first subframe, the 5th subframe, the 6th subframe, the 9th subframe and the tenth subframe are descending sub frame, the 3rd subframe, the 4th subframe and the 8th subframe are sub-frame of uplink, and second subframe and the 6th subframe are special subframe.Can be by this radio frames: have only a subframe to change in the uplink-downlink configuration mode 1 of LTE R8 TDD system configuration and the transfer process of the uplink-downlink configuration mode 2 of LTE R8 TDD system configuration so that be converted to simplification between the uplink-downlink configuration mode of LTE R8 TDD system configuration, for example.
In sum, pass through the foregoing description, a kind of data transmission method is provided, device and radio frames, by predetermined uplink-downlink configuration mode is set, wherein, predetermined uplink-downlink configuration mode is configured to 10 subframes in the radio frames: first subframe, the 5th subframe, the 6th subframe, the 9th subframe and the tenth subframe are descending sub frame, the 3rd subframe, the 4th subframe and the 8th subframe are sub-frame of uplink, second subframe and the 6th subframe are special subframe, overcome and to have occurred having a plurality of subframes to change in sub-frame of uplink and the descending sub frame simultaneously in the correlation technique in the sub-frame formats transfer process, cause control information to send position more complicated and confusion when dynamic change, thereby the complexity that causes system handles is than higher and cause the problem of system break.Thereby improved the stability of subframe up-downgoing conversion, improved the reliability of system then.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a data transmission method is applied to TDD system, it is characterized in that, comprising:
Predetermined uplink-downlink configuration mode is set, wherein, described predetermined uplink-downlink configuration mode is configured to 10 subframes in the radio frames: first subframe, the 5th subframe, the 6th subframe, the 9th subframe and the tenth subframe are descending sub frame, the 3rd subframe, the 4th subframe and the 8th subframe are sub-frame of uplink, and second subframe and the 6th subframe are special subframe;
Use described predetermined uplink-downlink configuration mode to carry out transfer of data.
2. method according to claim 1 is characterized in that,
One of uplink-downlink configuration mode that main carrier use LTE R8 TDD system has disposes the radio frames on it;
Auxilliary carrier wave uses one of following configuration mode to dispose radio frames on it: one of described predetermined uplink-downlink configuration mode, uplink-downlink configuration mode that LTE R8 TDD system has.
3. method according to claim 2 is characterized in that,
The uplink-downlink configuration mode 0 to 6 that described LTE R8 TDD system has is for shown in the following table:
Wherein, it is descending sub frame that D identifies described subframe, and it is sub-frame of uplink that U identifies described subframe, and it is special subframe that S identifies described subframe.
4. method according to claim 3 is characterized in that, also comprises:
When described uplink-downlink configuration mode 1 is converted to described uplink-downlink configuration mode 2, earlier described radio frames configuration is converted to described predetermined uplink-downlink configuration mode from described uplink-downlink configuration mode 1 in radio frames configuration;
Again described radio frames configuration is converted to described uplink-downlink configuration mode 2 from described predetermined uplink-downlink configuration mode, wherein, in each uplink-downlink configuration mode transfer process, have only a subframe to change in the radio frames, it is one of following that described radio frames is configured to: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.
5. method according to claim 3 is characterized in that, also comprises:
When described ascending-descending subframes configuration mode 2 is converted to described uplink-downlink configuration mode 1, earlier described radio frames configuration is converted to described predetermined uplink-downlink configuration mode from described uplink-downlink configuration mode 2 in radio frames configuration;
Again described radio frames configuration is converted to described uplink-downlink configuration mode 1 from described predetermined uplink-downlink configuration mode, wherein, in each uplink-downlink configuration mode transfer process, have only a subframe to change in the radio frames, it is one of following that described radio frames is configured to: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.
6. method according to claim 3 is characterized in that, also comprises:
When described uplink-downlink configuration mode 1 is converted to described uplink-downlink configuration mode 3, earlier described radio frames configuration is converted to described predetermined uplink-downlink configuration mode from described uplink-downlink configuration mode 1 in radio frames configuration;
Again the configuration of described radio frames is converted to described uplink-downlink configuration mode 3 from described predetermined uplink-downlink configuration mode, wherein, it is one of following that described radio frames is configured to: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.
7. method according to claim 3 is characterized in that, also comprises:
When described uplink-downlink configuration mode 3 is converted to described uplink-downlink configuration mode 1, earlier the radio frames configuration is converted to described predetermined uplink-downlink configuration mode from described uplink-downlink configuration mode 3 in the configuration of described radio frames;
Again the configuration of described radio frames is converted to described uplink-downlink configuration mode 1 from described predetermined uplink-downlink configuration mode, wherein, it is one of following that described radio frames is configured to: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.
8. method according to claim 3 is characterized in that, also comprises:
Use following order to carry out the conversion of radio frames configuration: described uplink-downlink configuration mode 0---＞described uplink-downlink configuration mode 6---＞described uplink-downlink configuration mode 1---＞described predetermined uplink-downlink configuration mode---＞described uplink-downlink configuration mode 2---＞described uplink-downlink configuration mode 5, wherein, described radio frames is configured to one of following: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.
9. method according to claim 3 is characterized in that, also comprises:
Use following order to carry out the conversion of described radio frames configuration: described uplink-downlink configuration mode 5---＞described uplink-downlink configuration mode 4---＞described uplink-downlink configuration mode 3---＞described predetermined uplink-downlink configuration mode---＞described uplink-downlink configuration mode 1---＞described uplink-downlink configuration mode 6---＞described uplink-downlink configuration mode 0, wherein, described radio frames is configured to one of following: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.
10. method according to claim 3 is characterized in that, also comprises:
Use following order to carry out the conversion of described radio frames configuration: described uplink-downlink configuration mode 5---＞described uplink-downlink configuration mode 2---＞described predetermined uplink-downlink configuration mode---＞described uplink-downlink configuration mode 1---＞described uplink-downlink configuration mode 6---＞described uplink-downlink configuration mode 0, wherein, described radio frames is configured to one of following: the radio frames configuration of sub-district, the radio frames configuration of carrier wave.
11. a data transmission device is characterized in that, comprising:
Module is set, be used for being provided with the predetermined uplink-downlink configuration mode of the sub-frame formats of radio frames, wherein, described predetermined uplink-downlink configuration mode is configured to 10 subframes in the radio frames: first subframe, the 5th subframe, the 6th subframe, the 9th subframe and the tenth subframe are descending sub frame, the 3rd subframe, the 4th subframe and the 8th subframe are sub-frame of uplink, and second subframe and the 6th subframe are special subframe;
Transport module is used to use described predetermined uplink-downlink configuration mode to carry out transfer of data.
12. a radio frames is characterized in that, comprises 10 subframes, wherein, first subframe, the 5th subframe, the 6th subframe, the 9th subframe and the tenth subframe are descending sub frame, and the 3rd subframe, the 4th subframe and the 8th subframe are sub-frame of uplink, and second subframe and the 6th subframe are special subframe.
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| CN201010581486.4A CN102035594B (en) | 2010-12-09 | 2010-12-09 | Data transmitting method and device and radio frame |
| PCT/CN2011/076599 WO2012075806A1 (en) | 2010-12-09 | 2011-06-29 | Data transmission method, device and radio frame |
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| WO2012075806A1 (en) | 2012-06-14 |
| CN102035594B (en) | 2015-05-13 |
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