CN102025411B - A kind of tdd systems and dynamic frame structure thereof and collocation method - Google Patents
A kind of tdd systems and dynamic frame structure thereof and collocation method Download PDFInfo
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention discloses a kind of tdd systems, and based on time division duplex (Time DivisionDuplex, TDD) the dynamic frame structure of system and collocation method, by selecting a subframe as dynamic subframe in radio frames, this dynamic subframe can have various states, and described state includes: sub-frame of uplink state, descending sub frame state, empty frame state.In TDD system, at the region adjacent boundary using different uplink-downlink configuration or when using the subregion in the region of a certain uplink-downlink configuration to change uplink-downlink configuration, can be by adjusting the state of dynamic subframe, the overlapping phenomenon of the sub-frame of uplink between the neighbor cell using different uplink-downlink configuration and descending sub frame can be avoided the occurrence of, thus eliminate the interference between sub-frame of uplink and descending sub frame；Can also the type of service of some subregion when changing, be converted into other uplink-downlink configuration neatly.
Description
Technical field
The present invention relates to wireless communication technology field, particularly relate to a kind of tdd systems, and based on
The dynamic frame structure of time division duplex (Time Division Duplex, TDD) system and collocation method.
Background technology
It is being in the wireless system that unit carries out data transmission with radio frames (Radio Frame), wireless sky
The Uplink/Downlink of port transmission is usually and is transmitted data in units of radio frames；Wherein, Mei Gewu
Line frame is made up of several subframes (Subframe), and subframe is all with orthogonal frequency division multiplex OFDM
(Orthogonal Frequency Division Multiplexing) symbol (Symbol) is ultimate unit group
Become.For long evolving system LTE (Long-Term Evolution), each radio frames is by 10 sons
Frame forms.
Current LTE, micro-wave access to global intercommunication (Worldwide Interoperability for Microwave
Access, Wimax), system is all for super mobile broadband (Ultra Mobile Broadband, UMB)
There are two kinds of duplex modes: FDD (Frequency Division Duplex) mode and time-division are double
Work TDD (Time Division Duplex) mode.Under FDD mode, Uplink/Downlink uses not
Same frequency band carries out data transmission, and so, the resource distribution of the uplink/downlink subframe of system is relatively independent,
That is: descending sub frame and sub-frame of uplink can be carried out resource distribution respectively.Under TDD mode, due to upper
/ downlink uses identical frequency range timesharing to be transmitted, and according to the needs of business, system can be according to one
Some subframes of radio frames are divided into sub-frame of uplink and descending sub frame by fixed ratio.General TDD system is up
The ratio of subframe 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, relatively more for downloading data service areas, it is possible to select
The configuration that descending sub frame is relatively more；For the area that the business of uploading data is relatively more, it is possible to select up
The configuration that subframe is relatively more；Download data portfolio is compared to the area of balance, it is possible in selection
The subequal proportional arrangement of descending sub frame.
In current LTE TDD (or referred to as TD-LTE) system, the up-downgoing ratio to TDD system
Example configuration sets 7 kinds of modes, as shown in table 1 below.One radio frames contains 10 subframes, subframe
Number being respectively labeled as: 0,1,2,3,4,5,6,7,8,9, wherein, " D " represents that this subframe is descending sub frame；“U”
Represent that this subframe is sub-frame of uplink；" S " represents that this subframe is special subframe, i.e. this subframe contains descending
Hop, interval and uplink part.
Existing uplink-downlink configuration list in table 1:LTE TDD system
In the configured list shown in table 1, uplink-downlink configuration 0,1,2,6 these four mode is with 5ms
As up-downgoing switching cycle；Uplink-downlink configuration 3,4,5 these three mode is using 10ms as up-downgoing
Switching cycle.
When the uplink-downlink configuration difference that the adjacent Liang Ge community of identical frequency (or adjacent frequency) uses,
Then the sub-frame of uplink between neighbor cell and descending sub frame arise that overlapping phenomenon, cause sub-frame of uplink with under
Interference between row subframe.
Such as, if two neighbor cells use the configuration 0 in table 1 and configuration 1, respectively from table 1
It can be seen that occur in that sub-frame of uplink and the configuration 1 of configuration 0 community in subframe 4 and subframe 9 position
The phenomenon that the descending sub frame of community is overlapping, so will result in the interference between sub-frame of uplink and descending sub frame.
Such as, if two neighbor cells use the configuration 4 in table 1 and configuration 5, respectively from table 1
It can be seen that occur in that on subframe 3 position under sub-frame of uplink and configuration 5 communities of configuration 4 communities
The phenomenon that row subframe is overlapping, so will result in the interference between sub-frame of uplink and descending sub frame.
It addition, for using some TDD system region configured, when a certain Kuai Zi district in this region
When different type of service demands occurs in territory (subregion is made up of some communities), this subregion is accomplished by
It is converted into another uplink-downlink configuration, to improve the spectrum efficiency of TDD system, so, this subregion
Uplink-downlink configuration will be different with the community of surrounding, the sub-frame of uplink between neighbor cell and descending sub frame
Arise that overlapping phenomenon, cause the interference between sub-frame of uplink and descending sub frame certainly.
Such as, if for using the TDD system region being configured to 0, when a certain piece of son in this region
When there is the situation that descending download data service increases in region, it is necessary to subregion is converted into descending sub frame
The most more being configured to the TDD system subregion of 1, so, this is configured to the subregion of 1 will be with
The community being around configured to 0 is disturbed.
Such as, if for using the TDD system region being configured to 4, when a certain piece of son in this region
When there is the situation that descending download data service increases in region, it is necessary to subregion is converted into descending sub frame
The most more being configured to the TDD system subregion of 5, so, this is configured to the subregion of 5 will be with
The community being around configured to 4 is disturbed.
Therefore, how the region adjacent for the radio frames using different uplink-downlink configuration is avoided the most dry
Disturb, and use how the region of the radio frames of a certain uplink-downlink configuration is being converted into another uplink-downlink configuration
After avoid occur interference become the technical issues that need to address.
Summary of the invention
The technical problem to be solved is, it is provided that a kind of tdd systems and dynamic frame knot thereof
Structure and collocation method, when being used for solving downstream transmission, use uplink-downlink configuration radio frames between upper
Descending interference problem and uplink-downlink configuration change before and after interfere problem.
In order to solve the problems referred to above, the present invention proposes a kind of tdd systems, described time division duplex system
In system, the radio frames for downstream transmission includes dynamic subframe, at described tdd systems at least
In each radio frames of a kind of uplink-downlink configuration mode, including 1 dynamic subframe, described dynamic subframe
Including 2 or 3 sub-frame state kinds.
Described dynamic subframe includes that 2 state categories, the configuration of described 2 sub-frame states include: up
Subframe state and empty frame state, or sub-frame of uplink state and descending sub frame state, or descending sub frame
State and empty frame state.
Described dynamic subframe includes 3 state categories, and its subframe state includes: empty frame state, up
Subframe state, descending sub frame state.
In described tdd systems, uplink-downlink configuration 0 He using 5ms as up-downgoing switching cycle
Under 6 two ways, in each radio frames, by up for 1 in the sub-frame of uplink of corresponding radio frames
Subframe is arranged to dynamic subframe；And/or, in the uplink-downlink configuration 4 using 10ms as up-downgoing switching cycle
With under 5 two ways, in each radio frames, by under 1 in the descending sub frame of corresponding radio frames
Row subframe is arranged to dynamic subframe.
1 dynamic subframe in the radio frames of uplink-downlink configuration mode 0 is 9 work song frames；And/or,
1 dynamic subframe in the radio frames of uplink-downlink configuration mode 6 is 4 work song frames；And/or,
1 dynamic subframe in the radio frames of uplink-downlink configuration mode 4 is 4 work song frames；And/or,
1 dynamic subframe in the radio frames of uplink-downlink configuration mode 5 is 3 work song frames.
Under uplink-downlink configuration 0 and 6 two ways, when described dynamic subframe includes 2 sub-frame state kinds,
Its subframe state is: sub-frame of uplink state and empty frame state, or sub-frame of uplink state or descending sub frame
State；Under uplink-downlink configuration 4 and 5 two ways, described dynamic subframe includes 2 sub-frame state kinds
Time, its subframe state is: descending sub frame state and empty frame state, or sub-frame of uplink state or descending
Subframe state；When described dynamic subframe includes 3 sub-frame state kinds, its subframe state includes: gap
Frame state, sub-frame of uplink state, descending sub frame state.
In described tdd systems, using 5ms as the uplink-downlink configuration mode of up-downgoing switching cycle in
All comprise the confirmation in uplink set in advance with dynamic subframe state number same number/non-really
Recognize the subframe position mapping relations that (ACK/NACK) feeds back.
In described tdd systems, there is the time division duplex that the uplink-downlink configuration mode of dynamic subframe covers
System network area, little at the network area adjacent boundary covered from different uplink-downlink configuration modes
Qu Zhong, the subframe state of its dynamic subframe is set to empty frame state.
In described tdd systems, there is the time division duplex that the uplink-downlink configuration mode of dynamic subframe covers
Certain subregion in system network area, when switching to other target uplink-downlink configuration mode, will be with
The dynamic subframe of the border cell of this subregion that former uplink-downlink configuration mode overlay area is adjacent is set to gap
Frame state, is converted to target uplink-downlink configuration mode by the non-border cell of this subregion.
Described tdd systems can be also multicarrier system, uses identical between the adjacent carrier in this system
Uplink-downlink configuration mode time, when the dynamic subframe on one of them carrier wave in adjacent carrier is up son
During frame state, then the corresponding dynamic subframe on another carrier wave in this adjacent carrier can not be descending son
Frame state；In like manner, it is descending sub frame state when the dynamic subframe on one of them carrier wave in adjacent carrier
Time, then the corresponding dynamic subframe on another carrier wave in this adjacent carrier can not be sub-frame of uplink state；
It is to say, when the dynamic subframe on one of them carrier wave in adjacent carrier is sub-frame of uplink state,
Then the corresponding dynamic subframe on another carrier wave in this adjacent carrier can be sub-frame of uplink state or
Empty frame state；When the dynamic subframe on one of them carrier wave in adjacent carrier is empty frame state,
Then the corresponding dynamic subframe on another carrier wave in this adjacent carrier can be sub-frame of uplink state, sky
Subframe state or descending sub frame state；When the dynamic subframe on one of them carrier wave in adjacent carrier is
During descending sub frame state, then the corresponding dynamic subframe on another carrier wave in this adjacent carrier can be
Descending sub frame state or empty frame state.
Described tdd systems is multicarrier system, the dynamic subframe of the non-adjacent intercarrier in this system
State can be respectively sub-frame of uplink state, empty frame state or descending sub frame state.
The present invention also provides for the frame structure of the radio frames in a kind of tdd systems, and described frame structure is used for
Downstream transmission in tdd systems, this frame structure includes 10 subframes, in described 10 subframes
Including 0 or 1 dynamic subframe, described dynamic subframe includes 2 or 3 sub-frame state kinds.Should
In tdd systems, the radio frames under a kind of uplink-downlink configuration mode includes 1 dynamic son
Frame.
Described dynamic subframe includes that 2 state categories, the configuration of described 2 sub-frame states include: up
Subframe state and empty frame state, or sub-frame of uplink state and descending sub frame state, or descending sub frame
State and empty frame state.
Described dynamic subframe includes 3 state categories, and its subframe state includes: empty frame state, up
Subframe state, descending sub frame state.
The frame structure of the radio frames of corresponding uplink-downlink configuration mode 0, this 1 dynamic subframe is 9 work song frames；
The frame structure of the radio frames of corresponding uplink-downlink configuration mode 6, this 1 dynamic subframe is 4 work song frames；
The frame structure of the radio frames of corresponding uplink-downlink configuration mode 4, this 1 dynamic subframe is 4 work song frames；
The frame structure of the radio frames of corresponding uplink-downlink configuration mode 5, this 1 dynamic subframe is 3 work song frames；
Wherein, when described dynamic subframe includes 2 state categories, the configuration bag of described 2 sub-frame states
Include: sub-frame of uplink state and empty frame state, or sub-frame of uplink state and descending sub frame state, or
Descending sub frame state and empty frame state；When described dynamic subframe includes 3 sub-frame state kinds, its son
Frame state includes: empty frame state, sub-frame of uplink state, descending sub frame state.
The present invention also provides for the collocation method of a kind of tdd systems, including: at tdd systems
Radio frames under a kind of uplink-downlink configuration mode includes 1 dynamic subframe, described dynamic subframe
Including 2 or 3 sub-frame state kinds.
Described dynamic subframe includes that 2 state categories, the configuration of described 2 sub-frame states include: up
Subframe state and empty frame state, or sub-frame of uplink state and descending sub frame state, or descending sub frame
State and empty frame state.Described dynamic subframe includes 3 state categories, and its subframe state includes: empty
Subframe state, sub-frame of uplink state, descending sub frame state.
The frame structure of the radio frames of corresponding uplink-downlink configuration mode 0, arranging 9 work song frames is dynamic subframe；
The frame structure of the radio frames of corresponding uplink-downlink configuration mode 6, arranging 4 work song frames is dynamic subframe；
The frame structure of the radio frames of corresponding uplink-downlink configuration mode 4, arranging 4 work song frames is dynamic subframe；
The frame structure of the radio frames of corresponding uplink-downlink configuration mode 5, arranging 3 work song frames is dynamic subframe；
Wherein, when described dynamic subframe includes 2 state categories, the configuration bag of described 2 sub-frame states
Include: sub-frame of uplink state and empty frame state, or sub-frame of uplink state and descending sub frame state, or
Descending sub frame state and empty frame state；When described dynamic subframe includes 3 sub-frame state kinds, its son
Frame state includes: empty frame state, sub-frame of uplink state, descending sub frame state.
The frame structure of the radio frames of corresponding uplink-downlink configuration mode 0 and 6, dynamic subframe includes 2 states
During kind, the configuration of described 2 sub-frame states includes: sub-frame of uplink state and empty frame state, or
Sub-frame of uplink state and descending sub frame state；
The frame structure of the radio frames of corresponding uplink-downlink configuration mode 4 and 5, dynamic subframe includes 2 states
During kind, the configuration of described 2 sub-frame states includes: descending sub frame state and empty frame state, or
Sub-frame of uplink state and descending sub frame state.
Described tdd systems is multicarrier system, uses identical upper between the adjacent carrier in this system
During downstream arrangements mode, when the dynamic subframe on one of them carrier wave in adjacent carrier is sub-frame of uplink shape
During state, then the corresponding dynamic subframe on another carrier wave in this adjacent carrier can not be descending sub frame shape
State；In like manner, when the dynamic subframe on one of them carrier wave in adjacent carrier is descending sub frame state,
Then the corresponding dynamic subframe on another carrier wave in this adjacent carrier can not be sub-frame of uplink state；Also
That is, when the dynamic subframe on one of them carrier wave in adjacent carrier is sub-frame of uplink state, then
Corresponding dynamic subframe on another carrier wave in this adjacent carrier can be sub-frame of uplink state or sky
Subframe state；When the dynamic subframe on one of them carrier wave in adjacent carrier is empty frame state, then
Corresponding dynamic subframe on another carrier wave in this adjacent carrier can be sub-frame of uplink state, gap
Frame state or descending sub frame state；Under the dynamic subframe on one of them carrier wave in adjacent carrier is
During row subframe state, then under the corresponding dynamic subframe on another carrier wave in this adjacent carrier can be
Row subframe state or empty frame state.
Described tdd systems is multicarrier system, the dynamic subframe of the non-adjacent intercarrier in this system
State can be respectively sub-frame of uplink state, empty frame state or descending sub frame state.
The application present invention can avoid the occurrence of the sub-frame of uplink between the neighbor cell using different uplink-downlink configuration
With the overlapping phenomenon of descending sub frame, thus eliminate the interference between sub-frame of uplink and descending sub frame；Simultaneously can
When changing with the type of service of some subregion of solution TDD system, can be converted into neatly
The problem of other uplink-downlink configuration.
Accompanying drawing explanation
Accompanying drawing is for providing a further understanding of the present invention, and constitutes a part for description, with this
The detailed description of the invention of invention is used for explaining the present invention together, is not intended that limitation of the present invention.Attached
In figure:
Fig. 1 is the schematic diagram configuring 0 scene 1 adjacent with the TDD system region of configuration 6；
Fig. 2 is the schematic diagram configuring 0 scene 2 adjacent with the TDD system region of configuration 6；
Fig. 3 is the scene schematic diagram that certain sub regions in configuration 0 region is converted into configuration 6.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to the present invention
It is described in further detail.
In current LTE TDD (or referred to as TD-LTE) system, to TDD up-downgoing proportional arrangement
Mode sets 7 kinds.As shown in table 1, in these 7 kinds of uplink-downlink configuration modes of configuration 0 to 6:
For configuration 1,2 and 3 these three modes, the ratio ratio of uplink transmission resource and downlink transfer resource
More moderate, it is possible to adapt to type of service and use in the region being continually changing, if some community is become
If other configurations, some community is accomplished by using empty frame, and this also results in performance loss, because of
This configures necessity that 1,2 and 3 these three mode dynamic mappings are other configurations is not the biggest.
For configuration 0 and 6 both modes, uplink transmission resource substantially more than downlink transfer resource very
Many, when using the downlink traffic in region of configuration 0 or 6 gradually to increase, both configuration modes
Efficiency will be the most on the low side, and being therefore highly desirable to both configures dynamic mapping is other configurations；
For configuration 4 and 5 both modes, downlink transfer resource substantially than uplink transmission resource many very
Many, when using the upstream traffic in region of configuration 4 or 5 gradually to increase, both configuration modes
Efficiency will be the most on the low side, and being the most also highly desirable to both configures dynamic mapping is other configurations.
Therefore, technical scheme mainly for configuration 0,4,5 and 6 these four configuration modes,
Propose for configuration 0,4,5 and 6 four kind of dynamic frame structure design of TDD and collocation method, these four
The dynamic subframe design principle of tdd frame structure is:
First, in a radio frames, in the radio frames of every kind of configuration correspondence, only one of which subframe is dynamic
Subframe, the so favourable complexity reducing system control information adjustment；
Second, described dynamic subframe comprises at least 2 kinds of state categories, just so has only to 1 Bit data
The two state categories can be represented.Further, every kind of TDD configuration includes 2 kinds of states, also
Just comprising 2 kinds and control information processing manner, whole system has only to 1 Bit data and just can represent；
3rd, dynamic subframe contains up to three state kind, and every kind of TDD configuration can include 3 kinds of shapes
State kind, the most just comprises 3 kinds and controls information processing manner, and whole system has only to 2 Bit datas and just may be used
To represent.
4th, for configuration 0 and 6 both modes, uplink transmission resource substantially ratio downlink transfer resource
The most a lot, therefore, in a radio frames, only 1 sub-frame of uplink is arranged to dynamic subframe.
5th, for configuration 4 and 5 both modes, downlink transfer resource is substantially than uplink transmission resource
The most a lot, therefore, in a radio frames, only 1 descending sub frame is arranged to dynamic subframe.
Based on above-mentioned design principle, the dynamic subframe concrete configuration of TDD system is as shown in table 2:
Table 2: configuration 0,4,5,6 arranges dynamic subframe cross-reference table
Wherein, radio frames all comprises 10 subframes, and subframe numbers is respectively labeled as: 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 should
Subframe is special subframe；C represents that this subframe is dynamic subframe.
Under the uplink-downlink configuration 0 and 6 both modes using 5ms as up-downgoing switching cycle, only
Sub-frame of uplink and in a radio frames at most only 1 sub-frame of uplink be arranged to dynamic subframe, configure 0
In subframe 9 be set to dynamic subframe, the subframe 4 in configuration 6 is set to dynamic subframe.
Under the uplink-downlink configuration 4 and 5 both modes using 10ms as up-downgoing switching cycle, only
Descending sub frame and in a radio frames at most only 1 descending sub frame be arranged to dynamic subframe, configure 4
In subframe 4 be set to dynamic subframe, the subframe 3 in configuration 5 is set to dynamic subframe.
The state categories of dynamic subframe C in table 2 includes at least 2 kinds, the described 2 kinds of shapes included at least
State is: sub-frame of uplink state and descending sub frame state, or sub-frame of uplink state and empty frame state；Or
Person's descending sub frame state and empty frame state.When dynamic subframe is transmitted for upstream data service, claiming should
Dynamic subframe is in sub-frame of uplink state；When dynamic subframe is transmitted for downstream data traffic, this is claimed to move
State subframe is in descending sub frame state；
For uplink-downlink configuration 0 and 6, when dynamic subframe does not has transmitting data service, claim this most sub
Frame is in empty frame state；For uplink-downlink configuration 4 and 5, empty frame state refers to that this subframe is only launched
Reference signal and do not launch other signals, or empty frame state refers to that this subframe does not launch signal.
According to design principle and specific design example, the radio frames obtaining a kind of TDD system can be summarized,
Under the uplink-downlink configuration mode of any radio frames, the most only 1 subframe in a radio frames
It is arranged to dynamic subframe.
TDD system, in the case of different uplink-downlink configuration, uses 1 identical bit or multi-bit data
2 kinds of possible states represent every kind of 2 kinds of possible states configured.Further, TDD system
In the case of different uplink-downlink configuration, use 2 kinds of 1 identical bit or multi-bit data possible
State represents 2 kinds of possible states of dynamic subframe.TDD system is to described 1 bit or multi-bit
After encoding according to certain rule, then it is transmitted.
TDD system uplink-downlink configuration 0 and 6 both configuration modes all include at least two and preset
Uplink ACK/NACK feed back subframe position mapping relations；Further, TDD system
Each uplink-downlink configuration mode using 5ms as up-downgoing switching cycle of uniting includes at least two in advance
The subframe position mapping relations that the ACK/NACK in uplink set feeds back.
One subframe is only set to dynamic subframe in a radio frames by TDD system, if this is because arranging
Dynamic subframe is too many, and the system effectiveness being easily caused reduces, and is prone to cause control information transmission position to exist
Dynamically more complicated and chaotic during change, only a subframe is set to dynamic subframe and then can avoid result in industry
The interruption of business.
Additionally, TDD system any one uplink-downlink configuration mode, it is also possible to all include three state kind
Class, i.e. descending sub frame state, empty frame state, sub-frame of uplink state；TDD system is each to be made with 5ms
For the uplink-downlink configuration mode of up-downgoing switching cycle all include 3 kinds set in advance in uplink
The subframe position mapping relations of ACK/NACK feedback；TDD system is in different uplink-downlink configuration situations
Under, use 3 kinds of possible states of 2 identical bits or 2 bit data above to represent every kind of configuration
3 kinds of possible states.TDD system, in the case of different uplink-downlink configuration, uses 2 identical ratios
Special or 2 bit data above 3 kinds of possible states represent 3 kinds of possible states of dynamic subframe.
After described 2 bits or 2 bit data above are encoded by TDD system according to certain rule, then carry out
Transmission.
Embodiment 1:
As shown in table 3, it is shown that the composition table of a kind of radio frames of the TDD system of embodiment 1.
Table 3:
This radio frames includes 10 subframes, and subframe numbers is respectively labeled as: 0,1,2,3,4,5,6,7,8,9.“D”
Represent that this subframe is descending sub frame；" U " represents that this subframe is sub-frame of uplink；" S " represents this subframe
For special subframe；C represents that this subframe is dynamic subframe.In table 3, subframe 0 is descending sub frame；Subframe 1
For special subframe (i.e. this subframe had both included the part of uplink and also included the part of downlink transfer)；
Subframe 2,3,4 is sub-frame of uplink；Subframe 5 is descending sub frame；Subframe 6 is special subframe；Subframe 7,
8 is sub-frame of uplink；Subframe 9 is dynamic subframe.
Wherein, subframe 9 includes at least 2 kinds as dynamic subframe C, the state categories of dynamic subframe C,
At least one of which state is sub-frame of uplink state.Described 2 kinds of states including at least are: sub-frame of uplink
State and descending sub frame state, or sub-frame of uplink state and empty frame state.When dynamic subframe is used for
During row data traffic transmission, this dynamic subframe is claimed to be in sub-frame of uplink state；When dynamic subframe is for descending
During data traffic transmission, this dynamic subframe is claimed to be in descending sub frame state；When dynamic subframe does not transmit number
During according to business, this dynamic subframe is claimed to be in empty frame state.
Wherein, TDD system uses 2 kinds of possible states of 1 Bit data to represent the 2 of dynamic subframe
Plant possible state, or use 2 kinds of possible states of multi-bit data to represent the 2 of dynamic subframe
Plant possible state；Described 1 bit or multi-bit data are encoded by TDD system according to certain rule
After, then be transmitted.
TDD system uses and represents that uplink-downlink configuration (Uplink-downlink configuration) 0 is identical
Bit data represent this dynamic frame structure shown in table 3.
Dynamic frame structure shown in table 3, it is also possible to be considered as the uplink-downlink configuration 0 of LTE TDD system
Subframe 9 be arranged to the frame structure that dynamic subframe C is formed；
Wherein, subframe 9 represents dynamic subframe C, and the state categories of dynamic subframe C includes at least 2 kinds,
At least one of which state is sub-frame of uplink state.Described 2 kinds of states including at least are: sub-frame of uplink
State and descending sub frame state, or sub-frame of uplink state and empty frame state.
TDD system uses 2 kinds of possible states of 1 bit or multi-bit data to represent dynamic subframe
2 kinds of possible states；Described 1 bit or multi-bit data are compiled by TDD system according to certain rule
After Ma, then it is transmitted.
The subframe 9 of the uplink-downlink configuration 0 of LTE TDD system is arranged to the benefit of dynamic subframe: do not have
Increasing new configuration, legacy version terminal can identify；Although subframe 9 needs to launch uplink ACK/NACK
Information, base station can be by the scheduling of resource of descending sub frame 5 to the terminal of redaction, the end of such redaction
End can select to send out feedback information on other sub-frame of uplink, and this does not interferes with the relevant behaviour of legacy version terminal
Make rule, therefore can ensure that the backwards compatibility of legacy version terminal；Another benefit is: upper strata of eating dishes without rice or wine
Agreement has only to the data increasing a bit to represent the two states of dynamic subframe, reduces sky
The complexity that mouth upper strata processes.Further need exist for it is to be noted that: TDD system base station needs photos and sending messages to tell
Redaction terminal, which kind of state is dynamic subframe be belonging to, it is simple to the control information of redaction terminal makees difference
Operation.
Further, the state categories of dynamic subframe C can also comprise 3 kinds, i.e. sub-frame of uplink state,
Or empty frame state or descending sub frame state.TDD system uses more than 2 bits or 2 bits number
According to 3 kinds of possible states represent 3 kinds of possible states of dynamic subframe；Further, TDD system
After described 2 bits or 2 bit data above are encoded by system according to certain rule, then it is transmitted.
The benefit that dynamic subframe comprises 3 kinds of possible states is: fast-changing in order to meet type of service
Needing, TDD system can change to another kind of uplink-downlink configuration from a kind of uplink-downlink configuration, becomes the most again
Return to original uplink-downlink configuration, during this, it is not necessary in broadcast channel, send TDD configuration become
The information changed, say, that be shown that same TDD uplink-downlink configuration mode in broadcast channel all the time.
Particularly at isolated TDD system (such as some isolated femto base station or Home eNodeB (pico/femto)
System), this mode is practical.
Embodiment 2:
As shown in table 4, it is shown that the subframe list of a kind of radio frames of the TDD system of embodiment 2.
Table 4:
This radio frames comprises 10 subframes, and subframe numbers is respectively labeled as: 0,1,2,3,4,5,6,7,8,9.“D”
Represent that this subframe is descending sub frame；" U " represents that this subframe is sub-frame of uplink；" S " represents this subframe
For special subframe；C represents that this subframe is dynamic subframe.In table 4, subframe 0 is descending sub frame；Subframe 1
For special subframe (i.e. this subframe had both included the part of uplink and also included the part of downlink transfer)；
Subframe 2,3 is sub-frame of uplink；Subframe 4 is dynamic subframe；Subframe 5 is descending sub frame；Subframe 6 is special
Different subframe；Subframe 7,8 is sub-frame of uplink；Subframe 9 is descending sub frame.
Wherein, subframe 4 includes at least 2 kinds as dynamic subframe C, the state categories of this dynamic subframe,
At least one of which state is sub-frame of uplink state.The described two states that includes at least is: sub-frame of uplink
State and empty frame state, or sub-frame of uplink state and descending sub frame state.
Wherein, TDD system uses 2 kinds of possible states of 1 bit or multi-bit data to represent dynamic
2 kinds of possible states of subframe；TDD system is regular according to certain to described 1 bit or multi-bit data
After encoding, then it is transmitted.
TDD system uses and represents that uplink-downlink configuration (Uplink-downlink configuration) 6 is identical
Bit data represent this dynamic frame structure shown in table 4.
Dynamic frame structure shown in table 4, it is also possible to be considered as the uplink-downlink configuration 6 of LTE TDD system
Subframe 4 be arranged to dynamic subframe C after the frame structure that formed；
Wherein, subframe 4 represents dynamic subframe C, and the state categories of this dynamic subframe includes at least 2 kinds,
At least one of which state is sub-frame of uplink state.The described two states that includes at least is: sub-frame of uplink
State and empty frame state, or sub-frame of uplink state and descending sub frame state.
TDD system uses 2 kinds of possible states of 1 bit or multi-bit data to represent dynamic subframe
2 kinds of possible states；Described 1 bit or multi-bit data are compiled by TDD system according to certain rule
After Ma, then it is transmitted.
The subframe 4 of the uplink-downlink configuration 6 of LTE TDD system is arranged to the benefit of dynamic subframe: do not have
Increasing new configuration, legacy version terminal can identify；Although subframe 4 needs to launch uplink ACK/NACK
Information, base station can be by the scheduling of resource of descending sub frame 9 to the terminal of redaction, the end of such redaction
End can select to send out feedback information on other sub-frame of uplink, and this does not interferes with the relevant behaviour of legacy version terminal
Make rule, therefore can ensure that the backwards compatibility of legacy version terminal.Another benefit is: upper strata of eating dishes without rice or wine
Agreement has only to the data increasing a bit to represent the two states of dynamic subframe, reduces sky
The complexity that mouth upper strata processes.Further need exist for it is to be noted that: TDD system base station needs photos and sending messages to tell
Redaction terminal, which kind of state is dynamic subframe be belonging to, it is simple to the control information of redaction terminal makees difference
Operation.
Further, the state categories of dynamic subframe can also comprise 3 kinds, i.e. sub-frame of uplink state or
Person's empty frame state or descending sub frame state.TDD system uses 2 bits or 2 bit data above
3 kinds of possible states represent 3 kinds of possible states of dynamic subframe；TDD system is to described 2 ratios
After special or 2 bit data above encode according to certain rule, then it is transmitted.
Embodiment 3:
As shown in table 5, it is shown that the subframe list of a kind of radio frames of the TDD system of embodiment 3.
Table 5:
This radio frames contains 10 subframes, and subframe numbers is respectively labeled as: 0,1,2,3,4,5,6,7,8,9.“D”
Represent that this subframe is descending sub frame；" U " represents that this subframe is sub-frame of uplink；" S " represents this subframe
For special subframe；C represents that this subframe is dynamic subframe.In table 5, subframe 0 is descending sub frame；Subframe 1
For special subframe (i.e. this subframe had both included the part of uplink and also included the part of downlink transfer)；
Subframe 2,3 is sub-frame of uplink；Subframe 4 is dynamic subframe；Subframe 5,6,7,8,9 is descending sub frame.
Wherein, subframe 4 includes at least 2 kinds as dynamic subframe C, the state categories of this dynamic subframe,
At least one of which state is descending sub frame state.This two states included at least is: descending sub frame shape
State and empty frame state, or sub-frame of uplink state and descending sub frame state.
Wherein, described empty frame state refers to that this subframe only launches cell reference signals (CRS), and not
Launch other signals；In order to reduce the up interference to adjacent area difference TDD configuration community, cell reference
Signal can only send on an antenna, it is also possible to only sends out in the first two OFDM symbol of this subframe
Send.
Wherein, empty frame state refers to that this subframe is not launched signal, i.e. this subframe and the most do not sent cell reference
Signal (CRS).Although so some legacy version terminal may can't detect CRS in this dynamic subframe
Signal, but the limited amount of the legacy version terminal of these types；Further, the descending sub frame of configuration 4 compares
Many, the probability also ratio that some legacy version terminal just detects CRS signal in this dynamic subframe is relatively low.
TDD system uses 2 kinds of possible states of 1 bit or multi-bit data to represent dynamic subframe
2 kinds of possible states；Described 1 bit or multi-bit data are compiled by TDD system according to certain rule
After Ma, then it is transmitted.TDD system uses and represents that configuration 4 identical Bit datas represent this
Dynamic frame structure.
Dynamic frame structure shown in table 5, it is also possible to be considered as the uplink-downlink configuration 4 of LTE TDD system
Subframe 4 be arranged to dynamic subframe C after the frame structure that formed；
Wherein, subframe 4 includes at least 2 kinds as dynamic subframe C, the state categories of this dynamic subframe,
At least one of which state is descending sub frame state.This two states included at least is: descending sub frame shape
State and empty frame state, or sub-frame of uplink state and descending sub frame state.
Described empty frame state refers to that this subframe is only launched cell reference signals (CRS) and do not launched other
Signal, or described empty frame state refers to that this subframe does not launch signal.
TDD system uses 2 kinds of possible states of 1 bit or multi-bit data to represent dynamic subframe
2 kinds of possible states；Described 1 bit or multi-bit data are compiled by TDD system according to certain rule
After Ma, then it is transmitted.
The subframe 4 of the uplink-downlink configuration 4 of LTE TDD system is arranged to the benefit of dynamic subframe: do not have
Increasing new configuration, legacy version terminal can identify；The subframe 4 of configuration 4 does not comprise PHICH information
With the PDCCH of uplink data scheduling, it is set to empty frame, does not interferes with original associative operation rule
Then, therefore can ensure that the backwards compatibility of legacy version terminal, it is possible to reduce the complexity of system.Also
Have the advantage that: upper-layer protocol of eating dishes without rice or wine has only to the data increasing a bit to represent the two of dynamic subframe
The state of kind, reduces the complexity that upper strata of eating dishes without rice or wine processes.The most also have the advantage that: TDD system
Base station can need not photos and sending messages and tell which kind of state is terminal dynamic subframe be.The work of terminal need not do
Any adjustment.
Further, the state categories of dynamic subframe C can also comprise 3 kinds, i.e. descending sub frame state,
Or empty frame state or sub-frame of uplink state；TDD system uses more than 2 bits or 2 bits number
According to 3 kinds of possible states represent 3 kinds of possible states of dynamic subframe；TDD system is to described 2
After bit or 2 bit data above encode according to certain rule, then it is transmitted.
Embodiment 4:
As shown in table 6, it is shown that the subframe list of a kind of radio frames of the TDD system of embodiment 4.
Table 6:
This radio frames contains 10 subframes, and subframe numbers is respectively labeled as: 0,1,2,3,4,5,6,7,8,9.“D”
Represent that this subframe is descending sub frame；" U " represents that this subframe is sub-frame of uplink；" S " represents this subframe
For special subframe；C represents that this subframe is dynamic subframe.In table 6, subframe 0 is descending sub frame；Subframe 1
For special subframe (i.e. this subframe had both included the part of uplink and also included the part of downlink transfer)；
Subframe 2 is sub-frame of uplink；Subframe 3 is dynamic subframe；Subframe 4,5,6,7,8,9 is descending sub frame.
Wherein, subframe 3 includes at least 2 kinds as dynamic subframe, the state categories of dynamic subframe C, its
In at least one state be descending sub frame state.This two states included at least is: descending sub frame state
With empty frame state, or sub-frame of uplink state and descending sub frame state；
Described empty frame state refers to that this subframe only launches cell reference signals (CRS), and does not launch it
His signal；In order to reduce the up interference to adjacent area difference TDD configuration community, cell reference signals can
Only to send on an antenna, it is also possible to only send in the first two OFDM symbol of this subframe.
Or, described empty frame state refers to that this subframe is not launched signal, i.e. this subframe and the most do not sent community
Reference signal (CRS).Although so some legacy version terminal may can't detect in this dynamic subframe
CRS signal, but the limited amount of the legacy version terminal of these types；Further, the descending sub frame of configuration 5
The most, the probability also ratio that some legacy version terminal just detects CRS signal in this dynamic subframe is relatively low.
TDD system uses 2 kinds of possible states of 1 bit or multi-bit data to represent dynamic subframe
2 kinds of possible states；Described 1 bit or multi-bit data are compiled by TDD system according to certain rule
After Ma, then it is transmitted.TDD system uses and represents that configuration 5 identical Bit datas represent this
Dynamic frame structure.
Dynamic frame structure shown in table 6, it is also possible to be considered as the uplink-downlink configuration 5 of LTE TDD system
Subframe 3 be arranged to after dynamic subframe C the frame structure that formed；
Wherein, subframe 3 includes at least 2 kinds as dynamic subframe C, the state categories of this dynamic subframe,
At least one of which state is descending sub frame state.The two states included at least is: descending sub frame state
With empty frame state, or sub-frame of uplink state and descending sub frame state.
Described empty frame state refers to that this subframe is only launched cell reference signals (CRS) and do not launched other
Signal, or described empty frame state refers to that this subframe does not launch signal.
TDD system uses 2 kinds of possible states of 1 bit or multi-bit data to represent dynamic subframe
2 kinds of possible states；Described 1 bit or multi-bit data are compiled by TDD system according to certain rule
After Ma, then it is transmitted.
The subframe 3 of the uplink-downlink configuration 5 of LTE TDD system is arranged to the benefit of dynamic subframe: do not have
Increasing new configuration, legacy version terminal can identify；The subframe 3 of configuration 5 does not comprise PHICH information
With the PDCCH of uplink data scheduling, it is set to empty frame, does not interferes with original associative operation rule
Then, therefore can ensure that the backwards compatibility of legacy version terminal, it is possible to reduce the complexity of system.Also
Have the advantage that: upper-layer protocol of eating dishes without rice or wine has only to the data increasing a bit to represent the two of dynamic subframe
The state of kind, reduces the complexity that upper strata of eating dishes without rice or wine processes.The most also have the advantage that: TDD system
Base station need not photos and sending messages and tells which kind of state is terminal dynamic subframe be.The work of terminal need not to do any
Adjust.
Further, the state categories of dynamic subframe C can also comprise 3 kinds, i.e. descending sub frame state,
Or empty frame state or sub-frame of uplink state；TDD system uses more than 2 bits or 2 bits number
According to 3 kinds of possible states represent 3 kinds of possible states of dynamic subframe；TDD system is to described 2
After bit or 2 bit data above encode according to certain rule, then it is transmitted.
Embodiment 5: four kinds of TDD dynamic frame structures in embodiment 1 to 4 use scene or networking configuration
Mode.
(1) when the TDD system network area using configuration 0, (region here is defined as containing very
The area of multiple cell) with use configuration 6 TDD system network area adjacent time, adopt at adjacent boundary
It is arranged to empty frame state, for adopting at adjacent boundary when specifically arranging by the subframe 9 of the community of configuration 0
With the community of configuration 0, it represents that the Bit data of dynamic subframe state is designated as empty frame state.
As it is shown in figure 1, in the neighbor cell in the TDD system region of configuration 0 and configuration 6,0 will be configured
The subframe 9 of the community at zone boundary has been arranged to empty frame state.It is described that " at adjacent boundary, employing is joined
The community set to 0 " not merely refer to the community the most adjacent with the community configuring 6, and configure 6 communities
Configuration 0 community relativelyed close to is it is also assumed that be at adjacent boundary.
Than as in figure 2 it is shown, with configure configuration 0 community that 6 communities relatively close to, can be the most adjacent
Border cell, the subframe 9 that these configure the community at 0 zone boundary has been arranged to empty frame state.
Also just says, need one between the TDD system region of configuration 0 and configuration 6 and be configured to 0 and sub
Frame 9 has been arranged to the TDD system region of empty frame state.Or in other words, use be configured to 0 and
Subframe 9 has been arranged to the TDD system region of empty frame state by configuration 0 and the TDD system of configuration 6
Region separates.
(2) when the TDD system network area using configuration 6, (region here is defined as containing very
The area of multiple cell) with use configuration 1 TDD system region adjacent time, by adjacent boundary use join
The subframe 4 of the community putting 6 is arranged to empty frame state, when specifically arranging, for using at adjacent boundary
The community of configuration 6, it represents that the Bit data of dynamic subframe state is designated as empty frame state.
(3) when the TDD system network area using configuration 3, (region here is defined as containing very
The area of multiple cell) with use configuration 4 TDD system region adjacent time, by adjacent boundary use join
The subframe 4 of the community putting 4 is arranged to empty frame state, when specifically arranging, for using at adjacent boundary
The community of configuration 4, it represents that 1 bit of dynamic subframe state or multi-bit data are designated as empty frame shape
State.Herein, the subframe 4 of configuration 4 is arranged to dynamic subframe, and the subframe 4 of configuration 3 is not arranged
One of reason becoming dynamic subframe is: the subframe 4 of configuration 3 needs to transmit Uplink ACK/NACK information.
(4) when the TDD system network area using configuration 4, (region here is defined as containing very
The area of multiple cell) with use configuration 5 TDD system region adjacent time, by adjacent boundary use join
The subframe 3 of the community putting 5 is arranged to empty frame state, when specifically arranging, for using at adjacent boundary
The community of configuration 5, it represents that 1 bit of dynamic subframe state or multi-bit data are designated as empty frame shape
State.Herein, the subframe 3 of configuration 5 is arranged to dynamic subframe, and the subframe 3 of configuration 4 is not arranged
One of reason becoming dynamic subframe is: the subframe 3 of configuration 4 needs to transmit Uplink ACK/NACK information.
Embodiment 6: in the TDD system region of a kind of configuration, certain subregion is converted into another kind of up-downgoing and joins
The conversion regime put.For using some TDD system region configured, when a certain piece in this region
When subregion is converted into another kind of uplink-downlink configuration, its conversion regime can be found in following example.
(1) when using some subregion configuration to be converted in the TDD system region being configured to 0
When being the TDD system subregion of 6, by the edge cell of this subregion adjacent with being configured to 0 community
Subframe 9 is arranged to empty frame state；The non-edge cell of this subregion non-conterminous with peripheral cell is turned
Change the TDD mode being configured to 6 into.It should be understood that " edge cell " not merely refers to and joins
The community that the community that sets to 0 is the most adjacent, and configures community that 0 community relativelys close to it is also assumed that be this
The edge cell of subregion.
In the specific implementation, as shown in Figure 3: when using be configured in the TDD system region of 0 a certain
When sub regions to be converted into the TDD system subregion being configured to 6, can carry out according to following sequencing:
First the subframe 9 of this subregion is arranged to empty frame state；
Then, then by the non-edge cell of this subregion non-conterminous with peripheral cell it is converted into and is configured to 6
TDD mode.
Otherwise, when using some subregion configuration to be converted in the TDD system region being configured to 6
When being the TDD system subregion of 0, by the edge cell of this subregion adjacent with the community being configured to 6
It is converted into and is configured to 0 and TDD mode that subframe 9 is empty frame state；Will be non-conterminous with peripheral cell
The non-edge cell of this subregion is converted into the TDD mode being configured to 0, will be non-conterminous with peripheral cell
The subframe 9 of the non-edge cell of this subregion is arranged to sub-frame of uplink state.
In the specific implementation, as shown in Figure 3: when using be configured in the TDD system region of 6 a certain
When sub regions to be converted into the TDD system subregion being configured to 0, can carry out according to following sequencing:
First this subregion is converted into and is configured to 0 and TDD mode that subframe 9 is empty frame state；
Then, on the subframe 9 of the non-edge cell of this subregion non-conterminous with peripheral cell is arranged to
Row subframe state.
(2) when using some subregion configuration to be converted in the TDD system region being configured to 6
When being the TDD system subregion of 1, by the edge cell of this subregion adjacent with being configured to 6 communities
Subframe 4 is arranged to empty frame state；The non-edge cell of this subregion non-conterminous with peripheral cell is turned
Change the TDD mode being configured to 1 into.
When being embodied as, to change according to some subregion in the TDD system region being configured to 6
When becoming the TDD system subregion being configured to 1, can carry out according to following sequencing:
First the subframe 4 of the edge cell of this subregion adjacent with being configured to 6 communities is arranged to empty frame
State；
The non-edge cell of this subregion non-conterminous with peripheral cell is converted into the TDD being configured to 1 again
Mode.
Otherwise, when using some subregion configuration to be converted in the TDD system region being configured to 1
When being the TDD system subregion of 6, the edge cell of this subregion adjacent with being configured to 1 community is turned
Change into and be configured to 6 and TDD mode that subframe 4 is empty frame state；To non-conterminous with peripheral cell be somebody's turn to do
The non-edge cell of subregion is converted into the TDD mode being configured to 6, will non-conterminous with peripheral cell be somebody's turn to do
The subframe 4 of the non-edge cell of subregion is arranged to sub-frame of uplink state.
When being embodied as, to change according to some subregion in the TDD system region being configured to 1
When becoming the TDD system subregion being configured to 6, can carry out according to following sequencing:
First the edge cell of this subregion adjacent with being configured to 1 community is converted into and is configured to 6 and subframe
4 is the TDD mode of empty frame state；
Then, then by the non-edge cell of this subregion non-conterminous with peripheral cell it is converted into and is configured to 6
TDD mode, the subframe 4 of the non-edge cell of this subregion non-conterminous with peripheral cell is arranged to
Sub-frame of uplink state.
(3) when using some subregion configuration to be converted in the TDD system region being configured to 4
When being the TDD system subregion of 3, by the edge cell of this subregion adjacent with being configured to 4 communities
Subframe 4 is arranged to empty frame state；The non-edge cell of this subregion non-conterminous with peripheral cell is turned
Change the TDD mode being configured to 3 into.
When being embodied as, to change according to some subregion in the TDD system region being configured to 4
When becoming the TDD system subregion being configured to 3, can carry out according to following sequencing:
First the subframe 4 of the edge cell of this subregion adjacent with being configured to 4 communities is arranged to empty frame
State；
Then, then by the non-edge cell of this subregion non-conterminous with peripheral cell it is converted into and is configured to 3
TDD mode.
Otherwise, when using some subregion configuration to be converted in the TDD system region being configured to 3
When being the TDD system subregion of 4, the edge cell of this subregion adjacent with being configured to 3 communities is turned
Change into and be configured to 4 and TDD mode that subframe 4 is empty frame state；To non-conterminous with peripheral cell be somebody's turn to do
The non-edge cell of subregion is converted into the TDD mode being configured to 4, will non-conterminous with peripheral cell be somebody's turn to do
The subframe 4 of the non-edge cell of subregion is arranged to descending sub frame state.
When being embodied as, to change according to some subregion in the TDD system region being configured to 3
When becoming the TDD system subregion being configured to 4, can carry out according to following sequencing:
First the edge cell of this subregion adjacent with being configured to 3 communities is converted into and is configured to 4 and subframe
4 is the TDD mode of empty frame state；
Then, then by the non-edge cell of this subregion non-conterminous with peripheral cell it is converted into and is configured to 4
TDD mode, the subframe 4 of the non-edge cell of this subregion non-conterminous with peripheral cell is arranged to
Descending sub frame state.
(4) when using some subregion configuration to be converted in the TDD system region being configured to 5
When being the TDD system subregion of 4, by the edge cell of this subregion adjacent with being configured to 5 communities
Subframe 3 is arranged to empty frame state；The non-edge cell of this subregion non-conterminous with peripheral cell is turned
Change the TDD mode being configured to 4 into.
When being embodied as, to change according to some subregion in the TDD system region being configured to 5
When becoming the TDD system subregion being configured to 4, can carry out according to following sequencing:
First the subframe 3 of the edge cell of this subregion adjacent with being configured to 5 communities is arranged to empty frame
State；
Then, then by the non-edge cell of this subregion non-conterminous with peripheral cell it is converted into and is configured to 4
TDD mode.
Otherwise, when using some subregion configuration to be converted in the TDD system region being configured to 4
When being the TDD system subregion of 5, the edge cell of this subregion adjacent with being configured to 4 communities is turned
Change into and be configured to 5 and TDD mode that subframe 3 is empty frame state；To non-conterminous with peripheral cell be somebody's turn to do
The non-edge cell of subregion is converted into the TDD mode being configured to 5, will non-conterminous with peripheral cell be somebody's turn to do
The subframe 3 of the non-edge cell of subregion is arranged to descending sub frame state.
When being embodied as, to change according to some subregion in the TDD system region being configured to 4
When becoming the TDD system subregion being configured to 5, can carry out according to following sequencing:
First the edge cell of this subregion adjacent with being configured to 4 communities is converted into and is configured to 5 and subframe
3 is the TDD mode of empty frame state；
Then, then by the non-edge cell of this subregion non-conterminous with peripheral cell it is converted into and is configured to 5
TDD mode, the subframe 3 of the non-edge cell of this subregion non-conterminous with peripheral cell is arranged to
Descending sub frame state.
Further, if this tdd systems is multicarrier system, can dictate otherwise as follows:
Described tdd systems is multicarrier system, uses identical upper between the adjacent carrier in this system
During downstream arrangements mode,
When the dynamic subframe on one of them carrier wave in adjacent carrier is sub-frame of uplink state, the most adjacent
Corresponding dynamic subframe on another carrier wave in carrier wave can not be descending sub frame state；
In like manner, when the dynamic subframe on one of them carrier wave in adjacent carrier is descending sub frame state,
Then the corresponding dynamic subframe on another carrier wave in this adjacent carrier can not be sub-frame of uplink state.
That is:
When the dynamic subframe on one of them carrier wave in adjacent carrier is sub-frame of uplink state, then this phase
The corresponding dynamic subframe on another carrier wave in adjacent carrier wave can be sub-frame of uplink state or empty frame
State；
When the dynamic subframe on one of them carrier wave in adjacent carrier is empty frame state, then this is adjacent
Corresponding dynamic subframe on another carrier wave in carrier wave can be sub-frame of uplink state, empty frame state
Or descending sub frame state；
When the dynamic subframe on one of them carrier wave in adjacent carrier is descending sub frame state, then this phase
The corresponding dynamic subframe on another carrier wave in adjacent carrier wave can be descending sub frame state or empty frame
State.
Described tdd systems is multicarrier system, the dynamic subframe of the non-adjacent intercarrier in this system
State can be respectively sub-frame of uplink state, empty frame state or descending sub frame state.
So-called multicarrier system, refers to that this system is configured with multiple carrier wave, each carrier wave can transmit
Data.When each spectrum of carrier bandwidth is identical, the power system capacity of the most multiple carrier waves is greater than single load
The power system capacity of ripple.Multiple intercarriers, have on frequency domain can be adjacent, and also have can be with right and wrong
Adjacent.Adjacent and non-adjacent carrier wave definition is referred to 36.101 and 36.104 standard criterions.
The said one provided by the specific embodiment of the invention or multiple technical scheme, can be avoided out
Now use the overlapping phenomenon of the sub-frame of uplink between the neighbor cell of different uplink-downlink configuration and descending sub frame, from
And eliminate the interference between sub-frame of uplink and descending sub frame；The a certain height of TDD system can be solved simultaneously
When the type of service in region changes, the problem that other uplink-downlink configuration can be converted into neatly.
The foregoing is only embodiments of the invention, be not limited to the present invention, for this area
Technical staff for, the present invention can have various modifications and variations.All in the spirit and principles in the present invention
Within, any modification, equivalent substitution and improvement etc. made, should be included in the claim of the present invention
Within the scope of.
Claims (5)
1. the collocation method of a tdd systems, it is characterised in that
Each radio frames under a kind of uplink-downlink configuration mode of tdd systems sets
Putting 1 dynamic subframe, described dynamic subframe includes 2 or 3 sub-frame state kinds；
Described dynamic subframe includes that 2 state categories, the configuration of described 2 sub-frame states include: up
Subframe state and empty frame state, or sub-frame of uplink state and descending sub frame state, or descending sub frame
State and empty frame state；
Described dynamic subframe includes 3 state categories, and its subframe state includes: empty frame state, up
Subframe state, descending sub frame state.
2. collocation method as claimed in claim 1, it is characterised in that
The frame structure of the radio frames of corresponding uplink-downlink configuration mode 0, arranging 9 work song frames is dynamic subframe；
And/or,
The frame structure of the radio frames of corresponding uplink-downlink configuration mode 6, arranging 4 work song frames is dynamic subframe；
And/or,
The frame structure of the radio frames of corresponding uplink-downlink configuration mode 4, arranging 4 work song frames is dynamic subframe；
And/or,
The frame structure of the radio frames of corresponding uplink-downlink configuration mode 5, arranging 3 work song frames is dynamic subframe；
Wherein,
When described dynamic subframe includes 2 state categories, the configuration of described 2 sub-frame states includes: on
Row subframe state and empty frame state, or sub-frame of uplink state and descending sub frame state, or descending son
Frame state and empty frame state；
When described dynamic subframe includes 3 sub-frame state kinds, its subframe state includes: empty frame state,
Sub-frame of uplink state, descending sub frame state.
3. collocation method as claimed in claim 2, it is characterised in that
The frame structure of the radio frames of corresponding uplink-downlink configuration mode 0 and 6, dynamic subframe includes 2 states
During kind, the configuration of described 2 sub-frame states includes: sub-frame of uplink state and empty frame state, or
Sub-frame of uplink state and descending sub frame state；
The frame structure of the radio frames of corresponding uplink-downlink configuration mode 4 and 5, dynamic subframe includes 2 states
During kind, the configuration of described 2 sub-frame states includes: descending sub frame state and empty frame state, or
Sub-frame of uplink state and descending sub frame state.
4. collocation method as claimed any one in claims 1 to 3, it is characterised in that
Described tdd systems is multicarrier system, non-adjacent in the tdd systems of this multicarrier
The dynamic subframe state of intercarrier includes: sub-frame of uplink state, empty frame state or descending sub frame state.
5. collocation method as claimed any one in claims 1 to 3, it is characterised in that
Described tdd systems is multicarrier system, in the tdd systems of this multicarrier, and adjacent load
Dynamic subframe state between ripple includes: sub-frame of uplink state, empty frame state or descending sub frame state；
Dynamic subframe state between adjacent carrier need to meet following condition:
When the dynamic subframe on one of them carrier wave in adjacent carrier is sub-frame of uplink state, then this phase
The corresponding dynamic subframe on another carrier wave in adjacent carrier wave is sub-frame of uplink state or empty frame shape
State；
When the dynamic subframe on one of them carrier wave in adjacent carrier is empty frame state, then this is adjacent
Corresponding dynamic subframe on another carrier wave in carrier wave be sub-frame of uplink state, empty frame state or
Descending sub frame state；
When the dynamic subframe on one of them carrier wave in adjacent carrier is descending sub frame state, then this phase
The corresponding dynamic subframe on another carrier wave in adjacent carrier wave is descending sub frame state or empty frame shape
State.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010597926.5A CN102025411B (en) | 2010-10-11 | 2010-12-21 | A kind of tdd systems and dynamic frame structure thereof and collocation method |
| PCT/CN2011/076697 WO2012048593A1 (en) | 2010-10-11 | 2011-06-30 | Time division duplex system, dynamic frame structure and configuration method thereof |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010511949.X | 2010-10-11 | ||
| CN201010511949X | 2010-10-11 | ||
| CN201010511949 | 2010-10-11 | ||
| CN201010597926.5A CN102025411B (en) | 2010-10-11 | 2010-12-21 | A kind of tdd systems and dynamic frame structure thereof and collocation method |
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| CN103313402B (en) | 2012-03-16 | 2016-12-14 | 华为技术有限公司 | The method of a kind of ascending resource distribution, Apparatus and system |
| EP2816752A4 (en) * | 2012-03-16 | 2015-06-24 | Zte Corp | Retransmission method for time division duplexing self-adaptive frame structure, and network side device |
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| CN103427938B (en) * | 2012-05-18 | 2018-11-27 | 电信科学技术研究院 | Method, system and the equipment of configurating channel measurement and DL CSI feedback |
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| CN104113401B (en) * | 2013-04-22 | 2017-08-29 | 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 |
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