CN102035594B - Data transmitting method and device and radio frame - Google Patents
Data transmitting method and device and radio frame Download PDFInfo
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- CN102035594B CN102035594B CN201010581486.4A CN201010581486A CN102035594B CN 102035594 B CN102035594 B CN 102035594B CN 201010581486 A CN201010581486 A CN 201010581486A CN 102035594 B CN102035594 B CN 102035594B
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- uplink
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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
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
With radio frames (Radio frame) for unit carries out in the wireless system of transfer of data, radio open transmission Uplink/Downlink generally in units of Radio frame, carry out transmission data; Wherein, each Radio frame is made up of several subframes (Subframe), and, Subframe all with OFDM (Orthogonal Frequency DivisionMultiplexing, referred to as OFDM) symbol (Symbol) for base unit composition.For Long Term Evolution (Long-TermEvolution, referred to as LTE) system, each Radio frame is made up of 10 Subframe.
Current LTE, micro-wave access to global intercommunication (Worldwide Interoperability for Microwave Access, referred to as Wimax), super mobile broadband (Ultra Mobile Broadband, referred to as UMB) system has two kinds of duplex modes: Frequency Division Duplexing (FDD) (Frequency Division Duplex, referred to as FDD) mode and time division duplex (Time DivisionDuplex, referred to as TDD) mode.
Under FDD mode, Uplink/Downlink adopts different frequency bands to carry out transfer of data, like this, the Resourse Distribute of the uplink/downlink subframe (Subframes) of system is relatively independent, that is, Resourse Distribute can be carried out respectively to descending sub frame (Subframes) and sub-frame of uplink (Subframes).
Under TDD mode, because Uplink/Downlink uses identical frequency range timesharing to transmit, like this, according to the needs of business, some subframes of radio frames can be divided into sub-frame of uplink and descending sub frame according to certain ratio by system.The ratio of general TDD system sub-frame of uplink and descending sub frame number has some kinds, to meet the needs of different service types.
According to the needs of different regions type of service, appropriate up-downgoing proportional arrangement is selected to be conducive to improving the spectrum efficiency of TDD system.Such as, for the area that downloading data business is many, the configuration that descending sub frame is many just can be selected; For the area that the business of uploading data is many, the configuration that sub-frame of uplink is many just can be selected; Download data traffic carrying capacity is compared to the area of balance, just can select the subequal proportional arrangement of ascending-descending subframes.In current LTE TDD (or being called TD-LTE) system, 7 kinds are set to TDD up-downgoing proportional arrangement, as shown in table 1 below.A radio frames contains 10 subframes, and subframe numbers is labeled as respectively: 0, and 1,2,3,4,5,6,7,8,9." D " represents that this subframe is descending sub frame; " U " represents that this subframe is sub-frame of uplink; " S " represents that this subframe is special subframe, and the part that namely this subframe had both included uplink also includes the part of downlink transfer.
Table 1 ascending-descending subframes allocation list
Data transmission method in correlation technique, for the TDD system region adopting a certain configuration, when different type of service demands appears in this region, this region just needs to convert another uplink-downlink configuration to, to improve the spectrum efficiency of TDD system.Such as, if for adopting the TDD system region being configured to 1, when the situation that descending downloading data business increases appears in this region, just need to convert this region to TDD system that descending sub frame is relatively more configured to 2.Like this, just there will be the original subframe sending out upstream data and no longer send out upstream data, and change a downlink data into.But there will be in this process in sub-frame of uplink and descending sub frame and have multiple subframe to change simultaneously, cause control information to send position more complicated and confusion when dynamic change, thus cause the complexity of system process 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, higher and cause the problem of system break to solve system process complexity that data transmission method in above-mentioned correlation technique causes.
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: arrange predetermined uplink-downlink configuration mode, wherein, 10 subframes in a radio frames are configured to by predetermined uplink-downlink configuration mode: the first subframe, the 5th subframe, the 6th subframe, the 9th subframe and the tenth subframe are descending sub frame, 3rd subframe, the 4th subframe and the 8th subframe are sub-frame of uplink, and the second subframe and the 7th subframe are special subframe; Predetermined uplink-downlink configuration mode is used to carry out transfer of data.
Further, the radio frames of one of main carrier uplink-downlink configuration mode of using LTE R8 TDD system to have configuration on it; Auxiliary carrier wave uses one of following configuration mode to configure 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 following table 1: wherein, and it is descending sub frame that D identifies subframe, and it is sub-frame of uplink that U identifies subframe, and it is special subframe that S identifies subframe.
Further, said method also comprises: when radio frames configuration is converted to uplink-downlink configuration mode 2 from uplink-downlink configuration mode 1, first radio frames configuration is converted to predetermined uplink-downlink configuration mode from uplink-downlink configuration mode 1; Again 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, only have a subframe to change in a radio frames, radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave.
Further, said method also comprises: when radio frames configuration is converted to uplink-downlink configuration mode 1 from ascending-descending subframes configuration mode 2, first radio frames configuration is converted to predetermined uplink-downlink configuration mode from uplink-downlink configuration mode 2; Again 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, only have a subframe to change in a radio frames, radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave.
Further, said method also comprises: when radio frames configuration is converted to uplink-downlink configuration mode 3 from uplink-downlink configuration mode 1, first radio frames configuration is converted to predetermined uplink-downlink configuration mode from uplink-downlink configuration mode 1; Again radio frames configuration is converted to uplink-downlink configuration mode 3 from predetermined uplink-downlink configuration mode, wherein, radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave.
Further, said method also comprises: when radio frames configuration is converted to uplink-downlink configuration mode 1 from uplink-downlink configuration mode 3, first radio frames configuration is converted to predetermined uplink-downlink configuration mode from uplink-downlink configuration mode 3; Again radio frames configuration 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 community, the radio frames configuration of carrier wave.
Further, said method also comprises: use following order to carry out the conversion of radio frames configuration: the uplink-downlink configuration mode that uplink-downlink configuration mode 0---> uplink-downlink configuration mode 6---> uplink-downlink configuration mode 1---> is predetermined---> uplink-downlink configuration mode 2---> uplink-downlink configuration mode 5, wherein, radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave.
Further, said method also comprises: use following order to carry out the conversion of radio frames configuration: the uplink-downlink configuration mode that uplink-downlink configuration mode 5---> uplink-downlink configuration mode 4---> uplink-downlink configuration mode 3---> is predetermined---> 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 community, the radio frames configuration of carrier wave.
Further, said method also comprises: use following order to carry out the conversion of radio frames configuration: the uplink-downlink configuration mode that uplink-downlink configuration mode 5---> uplink-downlink configuration mode 2---> is predetermined---> 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 community, the radio frames configuration of carrier wave.
To achieve these goals, according to a further aspect in the invention, a kind of data transmission device is provided.
Data transmission device according to the present invention comprises: arrange module, for arranging the predetermined uplink-downlink configuration mode in the sub-frame formats of radio frames, wherein, 10 subframes in a radio frames are configured to by predetermined uplink-downlink configuration mode: the first subframe, the 5th subframe, the 6th subframe, the 9th subframe and the tenth subframe are descending sub frame, 3rd subframe, the 4th subframe and the 8th subframe are sub-frame of uplink, and the second subframe and the 7th subframe are special subframe; Transport module, carries out transfer of data for using predetermined uplink-downlink configuration mode.
To achieve these goals, in accordance with a further aspect of the present invention, a kind of radio frames is additionally provided.
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 the second subframe and the 7th subframe are special subframe.
Pass through the present invention, adopt and a kind of predetermined uplink-downlink configuration mode is set, wherein, 10 subframes in a radio frames are configured to by predetermined uplink-downlink configuration mode: the first subframe, 5th subframe, 6th subframe, 9th subframe and the tenth subframe are descending sub frame, 3rd subframe, 4th subframe and the 8th subframe are sub-frame of uplink, second subframe and the 7th subframe are special subframe, solve in correlation technique to there will be in sub-frame formats transfer process in sub-frame of uplink and descending sub frame has multiple subframe to change simultaneously, control information is caused to send position more complicated and confusion when dynamic change, thus cause the complexity of system process higher and cause the problem of system break.Thus improve the stability of subframe up-downgoing conversion, then improve the reliability of system.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the data transmission method according to the embodiment of the present invention;
Fig. 2 is the structured flowchart of the data transmission device according to the embodiment of the present invention; And
Fig. 3 is the preferred structured flowchart of the data transmission device according to the embodiment of the present invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Present embodiments provide a kind of data transmission method, be applied to time division duplex (TDD) system, Fig. 1 is the flow chart of the data transmission method according to the embodiment of the present invention, and as shown in Figure 1, the method comprises:
Step S102: the predetermined uplink-downlink configuration mode in the sub-frame formats of radio frames is set, wherein, 10 subframes in a radio frames are configured to by predetermined uplink-downlink configuration mode: the first subframe, the 5th subframe, the 6th subframe, the 9th subframe and the tenth subframe are descending sub frame, 3rd subframe, the 4th subframe and the 8th subframe are sub-frame of uplink, and the second subframe and the 7th 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, 10 subframes in a radio frames are configured to by predetermined uplink-downlink configuration mode: the first subframe, 5th subframe, 6th subframe, 9th subframe and the tenth subframe are descending sub frame, 3rd subframe, 4th subframe and the 8th subframe are sub-frame of uplink, second subframe and the 7th subframe are special subframe, overcome in correlation technique to there will be in sub-frame formats transfer process in sub-frame of uplink and descending sub frame has multiple subframe to change simultaneously, control information is caused to send position more complicated and confusion when dynamic change, thus cause the complexity of system process higher and cause the problem of system break.Thus improve the stability of subframe up-downgoing conversion, then improve the reliability of system.
Preferably, the subframe of one of main carrier uplink-downlink configuration mode of using LTE R8 TDD system to have configuration on it; Auxiliary carrier wave uses one of following configuration mode to configure 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, ensure that the sub-frame formats configuration that main carrier specifies according to existing protocol, the sub-frame formats that auxiliary carrier wave specifies according to existing protocol is configured with conversion sub-frame formats, achieves the compatibility to existing system, improves the flexibility of sub-frame configuration.
It should be noted that, although the uplink-downlink configuration mode limited in above-mentioned configuration is the uplink-downlink configuration mode that LTE R8 TDD system has, but due to 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 the LTE TDD system with other versions of LTE R8 TDD system compatibility.
Preferably, the uplink-downlink configuration mode 0 to 6 of above-mentioned LTE R8 TDD system configuration is for shown in table 1: wherein, it is descending sub frame that D identifies subframe, and it is sub-frame of uplink that U identifies subframe, and it is special subframe that S identifies subframe.By the preferred embodiment, under the sub-frame formats of existing protocol configuration, realize the smooth conversion of uplink-downlink configuration form, improve the stability of a system.
Preferably, said method also comprises: when radio frames configuration is converted to uplink-downlink configuration mode 2 from uplink-downlink configuration mode 1, first radio frames configuration is converted to predetermined uplink-downlink configuration mode from uplink-downlink configuration mode 1; Again 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, only have a subframe to change in a radio frames, radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave.
Preferably, when radio frames configuration is converted to ascending-descending subframes configuration mode 1 from ascending-descending subframes configuration mode 2, first radio frames configuration is converted to predetermined uplink-downlink configuration mode from ascending-descending subframes configuration mode 2; Again 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, only have a subframe to change in a radio frames, radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave.
Preferably, said method also comprises: when radio frames configuration is converted to ascending-descending subframes configuration mode 3 from ascending-descending subframes configuration mode 1, first radio frames configuration is converted to predetermined uplink-downlink configuration mode from ascending-descending subframes configuration mode 1; Again sub-frame configuration is converted to ascending-descending subframes configuration mode 3 from predetermined uplink-downlink configuration mode, wherein, radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave.By the preferred embodiment, the radio frames configuration achieving community or carrier wave, from mode 1 to the smooth conversion of mode 3, improves efficiency and the stationarity of conversion.
Preferably, when radio frames configuration is converted to ascending-descending subframes configuration mode 1 from ascending-descending subframes configuration mode 3, first radio frames configuration is converted to predetermined uplink-downlink configuration mode from ascending-descending subframes configuration mode 3; Again radio frames configuration is converted to ascending-descending subframes configuration mode 1 from predetermined uplink-downlink configuration mode, wherein, radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave.By the preferred embodiment, the radio frames configuration achieving community or carrier wave, from mode 3 to the smooth conversion of mode 1, improves efficiency and the stationarity of conversion.
Preferably, following order is used to carry out the conversion of radio frames configuration: the uplink-downlink configuration mode that ascending-descending subframes configuration mode 0---> uplink-downlink configuration mode 6---> uplink-downlink configuration mode 1---> is predetermined---> uplink-downlink configuration mode 2---> uplink-downlink configuration mode 5, wherein, radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave.By the preferred embodiment, the radio frames configuration achieving community or carrier wave, from the smooth conversion of the sub-frame of uplink mode more compared with multimode downward row subframe, improves efficiency and the stationarity of conversion.
Preferably, following order is used to carry out the conversion of radio frames configuration: the uplink-downlink configuration mode that uplink-downlink configuration mode 5---> uplink-downlink configuration mode 4---> uplink-downlink configuration mode 3---> is predetermined---> 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 community, the radio frames configuration of carrier wave.By the preferred embodiment, the radio frames configuration achieving community or carrier wave, from the smooth conversion of descending sub frame compared with the multimode upwards mode that row subframe is more, improves efficiency and the stationarity of conversion.
Preferably, following order is used to carry out the conversion of radio frames configuration: the uplink-downlink configuration mode that uplink-downlink configuration mode 5---> uplink-downlink configuration mode 2---> is predetermined---> 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 community, the radio frames configuration of carrier wave.By the preferred embodiment, the radio frames configuration achieving community or carrier wave to the smooth conversion of the more mode of sub-frame of uplink, improves efficiency and the stationarity of conversion from the more mode of descending sub frame.
Preferred embodiment
Present embodiments provide a kind of data transmission method, the present embodiment combines above-described embodiment and preferred implementation wherein, the UL-DL configuration mode of data transmission method both can be used in an independently TDD system region in the present embodiment, also can with in certain subcarrier TDD configuration in multi-carrier systems.
In the present embodiment, a radio frames contains 10 subframes, and subframe numbers is labeled as respectively: 0, and 1,2,3,4,5,6,7,8,9.Subframe 0 is descending sub frame; Subframe 1 is special subframe; Subframe 2,3 is sub-frame of uplink; Subframe 4,5 is descending sub frame; Subframe 6 is special subframe; Subframe 7 is sub-frame of uplink; Subframe 8,9 is descending sub frame;
Table 2 sub-frame transmission form signal table
As shown in Table 2: a radio frames contains 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 descending sub frame; " U " represents that this subframe is sub-frame of uplink; " S " represents that this subframe is special subframe, and the part that namely this subframe had both 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.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, after TDD system is encoded according to certain rule to this 3 Bit data, represent 8 kinds of uplink-downlink configuration.After a kind of new uplink-downlink configuration mode of present increase, still can represent with 3 Bit datas.So there is no additionally increase overhead, and this 3 Bit data resource can be made full use of.
Data transmission method in the present embodiment comprises with under type:
Mode one: when adopting the community of TDD uplink-downlink configuration 1 will convert TDD uplink-downlink configuration 2 to, this community needs first to convert TDD uplink-downlink configuration 7 to, and then converts TDD uplink-downlink configuration 2 to; In like manner, when adopting the community of TDD uplink-downlink configuration 2 will convert TDD uplink-downlink configuration 1 to, this community needs first to convert TDD uplink-downlink configuration 7 to, and then converts TDD uplink-downlink configuration 1 to.
It should be noted that, in a radio frames, TDD uplink-downlink configuration 7 than configuration descending sub frame more than 1, and configures 2 than configuration 7 also only many descending sub frames.Configuration 1 first converts configuration 7 to and then converts configuration 2 to, or configuration 2 first converts configuration 7 to and then converts configuration 1 to, the TDD uplink-downlink configuration of community is changed there is continuity, be conducive to ensureing that afoot business is not interrupted and reduces the complexity of system process.
Mode two
When adopting the carrier wave of TDD uplink-downlink configuration 1 will convert TDD uplink-downlink configuration 2 to, this carrier wave needs first to convert TDD uplink-downlink configuration 7 to, and then converts TDD uplink-downlink configuration 2 to; In like manner, when adopting the carrier wave of TDD uplink-downlink configuration 2 will convert TDD uplink-downlink configuration 1 to, this carrier wave needs first to convert TDD uplink-downlink configuration 7 to, and then converts TDD uplink-downlink configuration 1 to.
It should be noted that, for adopting the TDD system region being configured to 1, when the situation that descending downloading data business increases appears in this region, just needing to convert this region to TDD system that descending sub frame is relatively more configured to 2.Like this, just there will be the original subframe sending out upstream data and no longer send out upstream data, and change a downlink data into.In a radio frames, there are 2 subframes different between configuration 1 from configuration 2, if system will carry out dynamic mapping between configuration 1 and configuration 2, easily cause control information to send position more complicated and confusion when dynamic change, and easily cause the interruption of business.Therefore, if TD-LTE system will be made between configuration 1 and configuration 2 to realize high efficiency dynamic mapping, use configuration 7 to carry out intermediate conversion, can ensure to change uplink-downlink configuration smoothly when non-interrupting service, and reduce the complexity of system conversion.
If adopt configuration 1 with when adopting the TD-LTE system of configuration 2 adjacent, it is the configuration adopting empty frame that centre just needs one piece of region, to isolate up-downgoing interference.But owing to there being 2 subframes to be arranged to empty frame in a radio frames, therefore, the wasting of resources in this block region is just larger, may reduce the efficiency of whole TD-LTE system network on the contrary.
Mode three
When adopting the community of TDD uplink-downlink configuration 3 will convert TDD uplink-downlink configuration 1 to, this community needs first to convert TDD uplink-downlink configuration 7 to, and then convert TDD uplink-downlink configuration 1 to, in like manner, when adopting the carrier wave of TDD uplink-downlink configuration 3 will convert TDD uplink-downlink configuration 1 to, this carrier wave needs first to convert TDD uplink-downlink configuration 7 to, and then converts TDD uplink-downlink configuration 1 to.
It should be noted that, in the manner, in a radio frames, TDD uplink-downlink configuration 7 than configuration descending sub frame more than 1, and configures 3 than configuration 7 also only many descending sub frames.Configuration 3 first converts configuration 7 to and then converts configuration 1 to, the TDD uplink-downlink configuration of community is changed and has continuity, be conducive to ensureing that afoot business is not interrupted and reduces the complexity of system process.
Mode four
When adopting the carrier wave of TDD uplink-downlink configuration 3 will convert TDD uplink-downlink configuration 1 to, this carrier wave needs first to convert TDD uplink-downlink configuration 7 to, and then convert TDD uplink-downlink configuration 1 to, in like manner, when adopting the carrier wave of TDD uplink-downlink configuration 1 will convert TDD uplink-downlink configuration 3 to, this carrier wave needs first to convert TDD uplink-downlink configuration 7 to, and then converts TDD uplink-downlink configuration 3 to.
Mode five
When community is from up more configuration transitions to descending more configuration, need to carry out according to following change over order:
Configuration 0---> configures 6---> and configures 1---> configuration 7---> configuration 2---> configuration 5.
Mode six
When certain carrier wave is from up more configuration transitions to descending more configuration, need to carry out according to following change over order:
Configuration 0---> configures 6---> and configures 1---> configuration 7---> configuration 2---> configuration 5.
Mode eight
When community is from descending more configuration transitions to up more configuration, need to carry out according to following change over order:
Configuration 5---> configures 4---> configuration 3---> configuration 7---> configuration 1---> and configures 6---> configuration 0.
Mode nine
When certain carrier wave is from descending more configuration transitions to up more configuration, need to carry out according to following change over order:
Configuration 5---> configures 4---> configuration 3---> configuration 7---> configuration 1---> and configures 6---> configuration 0.
Mode ten
When community is from descending more configuration transitions to up more configuration, can also carry out as follows according to another change over order:
Configuration 5---> configures 2---> and configures 7---> configuration 1---> configuration 6---> configuration 0.
Can find out, after adding TDD uplink-downlink configuration 7, the uplink-downlink configuration change of TD-LTE system has continuity more, is conducive to ensureing that afoot business is not interrupted and reduces the complexity of system process.
Mode 11
When certain carrier wave is from descending more configuration transitions to up more configuration, can also carry out as follows according to another change over order:
Configuration 5---> configures 2---> and configures 7---> configuration 1---> configuration 6---> configuration 0.
Preferably, in multi-carrier-wave TDD system, main carrier adopts any one in uplink-downlink configuration 0, configuration 1, configuration 2, configuration 3, configuration 4, configuration 5, configuration 6 these 7 kinds configurations; Any one during some subcarriers can adopt uplink-downlink configuration 0 to configuration 7 these 8 kinds to configure.Like this, main carrier adopts original configuration can keep the backward compatibility sex chromosome mosaicism of terminal well; Subcarrier adopts new configuration 7 can strengthen the flexibility of terminal in TDD configuration dynamic change well.
It should be noted that, the tdd frame structure in the tdd frame structural rate 10ms cycle in 5ms cycle advantageously, therefore increases the method using the present embodiment in the 5ms cycle in delay sensitive business, increases configuration 7, makes system configuration more reasonable.And the up-downgoing ratio of configuration 7 is comparatively applicable to present data traffic types, usage frequency is very high, improves system transfers efficiency.And the ratio of uplink transmission resource and the downlink transfer resource of configuration 1 and 2 these two kinds of modes is more moderate, type of service can be adapted to and use in the region of constantly change, can be more when therefore adopting configuration 1 in TD-LTE system practical application and configure 2.Like this, if increase one to configure 7 between configuration 1 and configuration 2, the application scenarios of this new configuration also can be many, can the transfer of data of optimization system.
Present embodiments provide a kind of data transmission device, Fig. 2 is the structured flowchart of the data transmission device according to the embodiment of the present invention, and as shown in Figure 2, this device comprises: arrange module 22 and transport module 24, be described in detail below to said structure:
Module 22 is set, for arranging the predetermined uplink-downlink configuration mode in the sub-frame formats of radio frames, wherein, 10 subframes in a radio frames are configured to by predetermined uplink-downlink configuration mode: the first subframe, the 5th subframe, the 6th subframe, the 9th subframe and the tenth subframe are descending sub frame, 3rd subframe, the 4th subframe and the 8th subframe are sub-frame of uplink, and the second subframe and the 7th subframe are special subframe; Transport module 24, is connected to and arranges module 22, carries out transfer of data for using the described predetermined uplink-downlink configuration mode arranging module installation 22 setting.
Fig. 3 is the preferred structured flowchart of the data transmission device according to the embodiment of the present invention, as shown in Figure 3, this device also comprises: the first sub-frame configuration module 32, second sub-frame configuration module 34, first transform subblock 241, first format conversion submodule 242, second transform subblock 243, second format conversion submodule 244, 3rd transform subblock 245, 3rd format conversion submodule 246, 4th transform subblock 247, 4th format conversion submodule 248, 5th transform subblock 249, 6th transform subblock 250, 7th transform subblock 251, below said structure is described in detail:
Said apparatus also comprises: the first sub-frame configuration module 32, for configuring the subframe of one of uplink-downlink configuration mode that main carrier uses LTE R8 TDD system to have configuration on it; Second sub-frame configuration module 34, the configuration mode one of below auxiliary carrier wave uses configures the subframe on it: one of uplink-downlink configuration mode that predetermined uplink-downlink configuration mode, LTE R8 TDD system have.
First transform subblock 241, for when radio frames configuration is converted to uplink-downlink configuration mode 2 from uplink-downlink configuration mode 1, is converted to predetermined uplink-downlink configuration mode by radio frames configuration from uplink-downlink configuration mode 1; First format conversion submodule 242, be connected to the first transform subblock 241, radio frames configuration for being converted to by the first transform subblock 241 is converted to uplink-downlink configuration mode 2 from predetermined uplink-downlink configuration mode, wherein, in each uplink-downlink configuration mode transfer process, only have a subframe to change in a radio frames, radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave.
Second transform subblock 243, for when radio frames configuration is converted to uplink-downlink configuration mode 1 from uplink-downlink configuration mode 2, is converted to predetermined uplink-downlink configuration mode by radio frames configuration from uplink-downlink configuration mode 2; Second format conversion submodule 244, be connected to the second transform subblock 243, radio frames configuration for being converted to by the second transform subblock 243 is converted to uplink-downlink configuration mode 1 from predetermined uplink-downlink configuration mode, wherein, in each uplink-downlink configuration mode transfer process, the subframe radio frames that changes is only had to be configured to one of following in a radio frames: the radio frames configuration of community, the radio frames configuration of carrier wave.
3rd transform subblock 245, for when radio frames configuration is converted to uplink-downlink configuration mode 3 from uplink-downlink configuration mode 1, is converted to predetermined uplink-downlink configuration mode by radio frames configuration from ascending-descending subframes configuration mode 1; 3rd format conversion submodule 246, be connected to the 3rd transform subblock 245, radio frames configuration for being converted to by the 3rd transform subblock 245 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 community, the radio frames configuration of carrier wave.
4th transform subblock 247, for when radio frames configuration is converted to uplink-downlink configuration mode 1 from uplink-downlink configuration mode 3, is converted to predetermined uplink-downlink configuration mode by radio frames configuration from uplink-downlink configuration mode 3; 4th format conversion submodule 248, be connected to the 4th transform subblock 247, radio frames configuration for being converted to by the 4th transform subblock 247 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 community, the radio frames configuration of carrier wave.
5th transform subblock 249, the conversion of radio frames configuration is carried out: the uplink-downlink configuration mode that uplink-downlink configuration mode 0---> uplink-downlink configuration mode 6---> uplink-downlink configuration mode 1---> is predetermined---> ascending-descending subframes configuration mode 2---> ascending-descending subframes configuration mode 5 for using following order, wherein, radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave.
6th transform subblock 250, the conversion of radio frames configuration is carried out: the uplink-downlink configuration mode that uplink-downlink configuration mode 5---> uplink-downlink configuration mode 4---> uplink-downlink configuration mode 3---> is predetermined---> uplink-downlink configuration mode 1---> uplink-downlink configuration mode 6---> uplink-downlink configuration mode 0 for using following order, wherein, radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave.
7th transform subblock 251, the conversion of radio frames configuration is carried out: the uplink-downlink configuration mode that uplink-downlink configuration mode 5---> uplink-downlink configuration mode 2---> is predetermined---> uplink-downlink configuration mode 1---> uplink-downlink configuration mode 6---> uplink-downlink configuration mode 0 for using following order, wherein, radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave.
Present embodiments provide a kind of radio frames, this radio frames comprises 10 subframes, and wherein, the first subframe, the 5th subframe, the 6th subframe, the 9th subframe and the tenth subframe are descending sub frame, 3rd subframe, the 4th subframe and the 8th subframe are sub-frame of uplink, and the second subframe and the 7th subframe are special subframe.Simplification is converted to, such as: in the transfer process of the uplink-downlink configuration mode 2 that the uplink-downlink configuration mode 1 of LTE R8 TDD system configuration configures with LTE R8 TDD system, only have a subframe to change between the uplink-downlink configuration mode that LTE R8 TDD system can be made to configure by this radio frames.
In sum, pass through above-described embodiment, provide a kind of data transmission method, device and radio frames, by arranging predetermined uplink-downlink configuration mode, wherein, 10 subframes in a radio frames are configured to by predetermined uplink-downlink configuration mode: the first subframe, 5th subframe, 6th subframe, 9th subframe and the tenth subframe are descending sub frame, 3rd subframe, 4th subframe and the 8th subframe are sub-frame of uplink, second subframe and the 7th subframe are special subframe, overcome in correlation technique to there will be in sub-frame formats transfer process in sub-frame of uplink and descending sub frame has multiple subframe to change simultaneously, control information is caused to send position more complicated and confusion when dynamic change, thus cause the complexity of system process higher and cause the problem of system break.Thus improve the stability of subframe up-downgoing conversion, then improve the reliability of system.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a data transmission method, is applied to TDD system, it is characterized in that, comprising:
Predetermined uplink-downlink configuration mode is set, wherein, 10 subframes in a radio frames are configured to by described predetermined uplink-downlink configuration mode: the first subframe, the 5th subframe, the 6th subframe, the 9th subframe and the tenth subframe are descending sub frame, 3rd subframe, the 4th subframe and the 8th subframe are sub-frame of uplink, and the second subframe and the 7th subframe are special subframe;
Described predetermined uplink-downlink configuration mode is used to carry out transfer of data;
Wherein, when radio frames configuration is converted to uplink-downlink configuration mode 2 from uplink-downlink configuration mode 1, first described radio frames configuration is converted to described predetermined uplink-downlink configuration mode from described uplink-downlink configuration mode 1; 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, only have a subframe to change in a radio frames, described radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave; Or,
When radio frames configuration is converted to described uplink-downlink configuration mode 1 from described ascending-descending subframes configuration mode 2, first described radio frames configuration is converted to described predetermined uplink-downlink configuration mode from described uplink-downlink configuration mode 2; 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, only have a subframe to change in a radio frames, described radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave; Or,
When radio frames configuration is converted to uplink-downlink configuration mode 3 from described uplink-downlink configuration mode 1, first described radio frames configuration is converted to described predetermined uplink-downlink configuration mode from described uplink-downlink configuration mode 1; Again the configuration of described radio frames is converted to described uplink-downlink configuration mode 3 from described predetermined uplink-downlink configuration mode, wherein, described radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave; Or,
When described radio frames configuration is converted to described uplink-downlink configuration mode 1 from described uplink-downlink configuration mode 3, first radio frames configuration is converted to described predetermined uplink-downlink configuration mode from described uplink-downlink configuration mode 3; Again the configuration of described radio frames is converted to described uplink-downlink configuration mode 1 from described predetermined uplink-downlink configuration mode, wherein, described radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave; Or,
Following order is used to carry out the conversion of radio frames configuration: uplink-downlink configuration mode predetermined described in uplink-downlink configuration mode 1---> described in uplink-downlink configuration mode 0---> uplink-downlink configuration mode 6--->---uplink-downlink configuration mode 2---> uplink-downlink configuration mode 5 described in >, wherein, described radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave; Or,
Following order is used to carry out the conversion of described radio frames configuration: uplink-downlink configuration mode predetermined described in uplink-downlink configuration mode 3---> described in described uplink-downlink configuration mode 5---> uplink-downlink configuration mode 4--->---uplink-downlink configuration mode 0 described in uplink-downlink configuration mode 6---> described in uplink-downlink configuration mode 1---> described in >, wherein, described radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave, or,
Following order is used to carry out the conversion of described radio frames configuration: uplink-downlink configuration mode predetermined described in uplink-downlink configuration mode 2---> described in described uplink-downlink configuration mode 5--->---uplink-downlink configuration mode 0 described in uplink-downlink configuration mode 6---> described in uplink-downlink configuration mode 1---> described in >, wherein, described radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave;
Wherein, described uplink-downlink configuration mode 0 to 6 is the uplink-downlink configuration mode that LTE R8 TDD system has.
2. method according to claim 1, is characterized in that,
One of uplink-downlink configuration mode that main carrier uses LTE R8 TDD system to have configures the radio frames on it;
Auxiliary carrier wave uses one of following configuration mode to configure radio frames on it: one of uplink-downlink configuration mode that described predetermined uplink-downlink configuration mode, LTE R8 TDD system have.
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 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. a data transmission device, is characterized in that, comprising:
Module is set, for arranging the predetermined uplink-downlink configuration mode in the sub-frame formats of radio frames, wherein, 10 subframes in a radio frames are configured to by described predetermined uplink-downlink configuration mode: the first subframe, the 5th subframe, the 6th subframe, the 9th subframe and the tenth subframe are descending sub frame, 3rd subframe, the 4th subframe and the 8th subframe are sub-frame of uplink, and the second subframe and the 7th subframe are special subframe;
Transport module, carries out transfer of data for using described predetermined uplink-downlink configuration mode;
Wherein, described transmitting device also comprises:
First transform subblock, for when radio frames configuration is converted to uplink-downlink configuration mode 2 from uplink-downlink configuration mode 1, is converted to described predetermined uplink-downlink configuration mode by described radio frames configuration from described uplink-downlink configuration mode 1; First format conversion submodule, be connected to described first transform subblock, described radio frames configuration for being converted to by described first transform subblock 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, only have a subframe to change in a radio frames, described radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave; Or,
Second transform subblock, for when radio frames configuration is converted to described uplink-downlink configuration mode 1 from described uplink-downlink configuration mode 2, is converted to described predetermined uplink-downlink configuration mode by described radio frames configuration from described uplink-downlink configuration mode 2; Second format conversion submodule, be connected to described second transform subblock, described radio frames configuration for being converted to by described second transform subblock 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, only have a subframe to change in a radio frames, described radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave; Or,
3rd transform subblock, for when radio frames configuration is converted to uplink-downlink configuration mode 3 from described uplink-downlink configuration mode 1, is converted to described predetermined uplink-downlink configuration mode by described radio frames configuration from described ascending-descending subframes configuration mode 1; 3rd format conversion submodule, be connected to described 3rd transform subblock, it is uplink-downlink configuration mode 3 that described radio frames configuration for being converted to by described 3rd transform subblock is changed described from described predetermined uplink-downlink configuration mode, wherein, described radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave; Or,
4th transform subblock, for when radio frames configuration is converted to described uplink-downlink configuration mode 1 from described uplink-downlink configuration mode 3, is converted to described predetermined uplink-downlink configuration mode by described radio frames configuration from described uplink-downlink configuration mode 3; 4th format conversion submodule, be connected to described 4th transform subblock, described radio frames configuration for being converted to by described 4th transform subblock is converted to described uplink-downlink configuration mode 1 from described predetermined uplink-downlink configuration mode, wherein, radio frames is configured to one of following: the radio frames of community is joined, wherein, described radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave; Or,
5th transform subblock, the conversion of radio frames configuration is carried out: the uplink-downlink configuration mode that uplink-downlink configuration mode 0---> uplink-downlink configuration mode 6---> uplink-downlink configuration mode 1---> is predetermined---> ascending-descending subframes configuration mode 2---> ascending-descending subframes configuration mode 5 for using following order, wherein, described radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave; Or,
6th transform subblock, the conversion of radio frames configuration is carried out: the uplink-downlink configuration mode that uplink-downlink configuration mode 5---> uplink-downlink configuration mode 4---> uplink-downlink configuration mode 3---> is predetermined---> uplink-downlink configuration mode 1---> uplink-downlink configuration mode 6---> uplink-downlink configuration mode 0 for using following order, wherein, described radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave; Or,
7th transform subblock, the conversion of radio frames configuration is carried out: the uplink-downlink configuration mode that uplink-downlink configuration mode 5---> uplink-downlink configuration mode 2---> is predetermined---> uplink-downlink configuration mode 1---> uplink-downlink configuration mode 6---> uplink-downlink configuration mode 0 for using following order, wherein, radio frames is configured to one of following: the radio frames configuration of community, the radio frames configuration of carrier wave;
Wherein, described uplink-downlink configuration mode 0 to 6 is the uplink-downlink configuration mode that LTE R8 TDD system has.
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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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| CN102035594B (en) * | 2010-12-09 | 2015-05-13 | 中兴通讯股份有限公司 | Data transmitting method and device and radio frame |
| CN102223214B (en) * | 2011-06-01 | 2014-04-16 | 电信科学技术研究院 | Method and device for data transmission |
| WO2013044432A1 (en) * | 2011-09-26 | 2013-04-04 | Renesas Mobile Corporation | Timing control in flexible time division duplex configuration |
| KR101283907B1 (en) * | 2011-11-02 | 2013-07-16 | 주식회사 이노와이어리스 | TDD downlink data transmitting method in LTE system |
| US9584266B2 (en) | 2012-03-09 | 2017-02-28 | Lg Electronics Inc. | Method for transreceiving signals and apparatus for same |
| WO2014075320A1 (en) * | 2012-11-19 | 2014-05-22 | Nokia Siemens Networks Oy | Method and apparatus |
| CN104113917B (en) * | 2013-04-22 | 2017-08-25 | 普天信息技术研究院有限公司 | A kind of realize descending HARQ method during ascending-descending subframes configuration change |
| CN104348595B (en) * | 2013-07-26 | 2017-07-21 | 普天信息技术有限公司 | The transmission method and system of a kind of hybrid automatic repeat request feedback information |
| CN105308891B (en) * | 2014-05-23 | 2019-03-01 | 华为技术有限公司 | A kind of device and method of determining secondary carrier transmission direction |
| CN105763305B (en) * | 2014-12-17 | 2019-04-23 | 中国移动通信集团公司 | A kind of data transmission method and device |
| CN107026689B (en) * | 2016-01-29 | 2019-08-16 | 华为技术有限公司 | A kind of frame format configuration method, device and system |
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| CN101615947B (en) * | 2008-06-24 | 2016-10-05 | 华为技术有限公司 | Configuration ratio of uplink subframe to downlink subframe method and the method for data transmission, device |
| CN101741710B (en) * | 2008-11-04 | 2011-12-07 | 电信科学技术研究院 | Uplink-downlink configuration and receiving methods of TDD system carrier aggregation |
| CN101754329B (en) * | 2008-12-10 | 2013-06-05 | 华为技术有限公司 | Data transmission method, equipment and system |
| KR101470654B1 (en) * | 2009-01-05 | 2014-12-09 | 엘지전자 주식회사 | Method for relaying data in wireless communication system based on tdd |
| CN102035594B (en) * | 2010-12-09 | 2015-05-13 | 中兴通讯股份有限公司 | Data transmitting method and device and radio frame |
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