CN105657851B - Data dispatching method, device and base station in a kind of LTE-TDD system - Google Patents
Data dispatching method, device and base station in a kind of LTE-TDD system Download PDFInfo
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- CN105657851B CN105657851B CN201510992267.8A CN201510992267A CN105657851B CN 105657851 B CN105657851 B CN 105657851B CN 201510992267 A CN201510992267 A CN 201510992267A CN 105657851 B CN105657851 B CN 105657851B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1664—Details of the supervisory signal the supervisory signal being transmitted together with payload signals; piggybacking
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1858—Transmission or retransmission of more than one copy of acknowledgement message
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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Abstract
The embodiment of the invention discloses the data dispatching methods in a kind of LTE-TDD system, the described method includes: base station is that first terminal UE carries out resource allocation, the resource allocation includes emptying the sub-frame of uplink of preset quantity after special subframe, and the first UE is located at except the pre-determined distance range of the base station；It is based on the resource allocation as a result, the base station is scheduled the upstream data from the first UE.Base station of the invention passes through the sub-frame of uplink for not dispatching the preset quantity after the special subframe from the terminal, the sub-frame of uplink of preset quantity after special subframe is emptied, extend the occupied time slot of special subframe, it enables the system to accommodate longer time lead TA, achievees the purpose that support overlength distance covering.
Description
Technical field
The present invention relates to LTE communication technical fields, and in particular to data dispatching method, dress in a kind of LTE-TDD system
It sets and base station.
Background technique
LTE (Long Term Evolution, long term evolution) is by 3GPP (The 3rd Generation
Partnership Project, third generation partner program) UMTS (the Universal Mobile that organizes to set up
Telecommunications System, Universal Mobile Communication System) technical standard long term evolution.LTE-TDD is that the time-division is double
LTE system under work (Time Division Duplexing) mode.Since uplink and downlink channel occupancy is same in LTE-TDD system
The different time-gap of one frequency range, in order to guarantee that the accurate reception of uplink/downlink frames, system requirement synchronous with base station to terminal are very high.
And under certain especially big ranges or overlength distance scene, such as virgin forest monitoring, sea shipping or drilling platforms
Covering etc., base station need to realize super remote covering.But the application scenarios of overlength distance covering in LTE-TDD system are directed to, due to
In LTE-TDD system, as the Timing Advance TA longer of terminal UE, in fact it could happen that downlink data is not finished receiving also and is somebody's turn to do
UE just sends the case where upstream data in advance.In this case, the upstream data sent in advance is can be received to not completing
What downlink data interfered.
Summary of the invention
In view of this, the present invention provides data transmission method, device and base station in a kind of LTE-TDD system, it can
Effectively avoid interference of the upstream data to downlink data in LTE-TDD system.
The present invention provides the data dispatching methods in a kind of LTE-TDD system, which comprises
Base station be first terminal UE carry out resource allocation, the resource allocation include by after special subframe preset quantity it is upper
Row subframe empties, and the first UE is located at except the pre-determined distance range of the base station；
It is based on the resource allocation as a result, the base station is scheduled the upstream data from the first UE.
Preferably, the preset quantity is specially one.
Preferably, the method also includes:
The base station judges the first UE for the downlink data before sending downlink data to the first UE
Whether the upstream data of return occupies the sub-frame of uplink being set to null, and according to judging result, it is determined whether Xiang Suoshu first
UE sends the downlink data.
Preferably, the method also includes:
The base station judges the first UE for the retransmission instructions before sending retransmission instructions to the first UE
Whether the data of re-transmission occupy the sub-frame of uplink being set to null, and according to judging result, it is determined whether the first UE of Xiang Suoshu hair
Send retransmission instructions.
Preferably, the method also includes:
If the data of the re-transmission occupy the sub-frame of uplink being set to null, the base station is sent to the first UE
Acknowledgement character response.
The present invention also provides the data scheduling device in a kind of LTE-TDD system, described device includes:
Distribution module, for carrying out resource allocation for first terminal UE, the resource allocation includes will be pre- after special subframe
If the sub-frame of uplink of quantity empties, the first UE is located at except the pre-determined distance range of the base station；
Scheduler module, for based on the resource allocation as a result, being adjusted to the upstream data from the first UE
Degree.
Preferably, the preset quantity is specially one.
Preferably, described device further include:
First judgment module, for before sending downlink data to the first UE, judging the first UE for institute
Whether the upstream data for stating downlink data return occupies the sub-frame of uplink being set to null；
First determining module, for according to judging result, it is determined whether the first UE of Xiang Suoshu sends the downlink data.
Preferably, described device further include:
Second judgment module, for before sending retransmission instructions to the first UE, judging the first UE for institute
Whether the data for stating retransmission instructions re-transmission occupy the sub-frame of uplink being set to null；
Second determining module, for according to judging result, it is determined whether the first UE of Xiang Suoshu sends retransmission instructions.
Preferably, described device further include:
Sending module, the judging result for second judgment module be it is yes, then to the first UE send ACK ring
It answers.
The present invention also provides the data dispatch base station in a kind of LTE-TDD system, the base station includes memory and place
Device is managed,
Said program code is transferred to the processor for storing program code by the memory；
The processor is used to execute following steps according to the instruction in said program code: for first terminal UE progress
Resource allocation, the resource allocation include emptying the sub-frame of uplink of preset quantity after special subframe, and the first UE is located at institute
Except the pre-determined distance range for stating base station；Based on the resource allocation, the upstream data from the first UE is scheduled.
In data dispatching method in LTE-TDD system provided by the invention, base station is that first terminal UE carries out resource point
Match, the resource allocation includes emptying the sub-frame of uplink of preset quantity after special subframe；First UE is located at the base station
Pre-determined distance range except；Based on the resource allocation, the upstream data from the first UE is adjusted in the base station
Degree.The present invention will be occupied by the special subframe between the downlink subframe and sub-frame of uplink of the first UE when distributing resource as base station
Time slot extend, so the upstream data that the terminal that the present invention can largely avoid overlength distance is sent in advance is to upper one
A downlink subframe interferes.In addition, since base station is that the result based on resource allocation is scheduled data, so, base station
By not dispatching the sub-frame of uplink of the preset quantity after the special subframe from the terminal, enable the system to accommodate longer
Timing Advance TA, achieve the purpose that support overlength distance covering.The present invention can largely avoid overlength distance
The upstream data that terminal is sent in advance interferes a upper downlink subframe.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for
For those of ordinary skill in the art, without any creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is the flow chart of the data transmission method in a kind of LTE-TDD system provided in an embodiment of the present invention；
Fig. 2 is that special subframe provided in an embodiment of the present invention is extended front and back contrast schematic diagram；
Fig. 3 is the data transmission device structural schematic diagram in a kind of LTE-TDD system provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the data transmission base station in a kind of LTE-TDD system provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.
The embodiment of the present invention can be applied in the LTE-TDD system of overlength distance covering, due to the terminal of overlength distance
The Timing Advance of (hereinafter referred to as first terminal UE) is longer, may cause the first UE and does not complete to receive a upper downlink subframe
Data when just have sent upstream data in advance, the upstream data sent in advance in this way may not complete upper one received
Downlink subframe interferes.Base station is when for the terminal distribution resource of overlength distance in the embodiment of the present invention, after special subframe
The sub-frame of uplink of preset quantity empties, i.e. the extension occupied time slot of special subframe.Base station of the invention is come from by not dispatching
The sub-frame of uplink of the preset quantity after the special subframe of the terminal, the sub-frame of uplink of preset quantity after special subframe is set
Sky, i.e. the extension occupied time slot of special subframe, enable the system to accommodate longer time lead TA, it is super remote to reach support
The purpose of distance covering.In addition, due to base station when distributing resource by the spy between the downlink subframe and sub-frame of uplink of the first UE
The different occupied time slot of subframe extends, so the embodiment of the present invention can largely avoid the uplink that the first UE is sent in advance
Data interfere a upper downlink subframe.
In the examples below, terminal can be intercom, but not limited to this.
The embodiment of the present invention is described below.
The embodiment of the invention provides the data dispatching methods in a kind of LTE-TDD system, real for the present invention with reference to Fig. 1
The flow chart of data dispatching method in a kind of LTE-TDD system of example offer is provided, which comprises
S101: base station is that first terminal UE carries out resource allocation, and the resource allocation includes by present count after special subframe
The sub-frame of uplink of amount empties, and the first UE is located at except the pre-determined distance range of the base station.
S102: based on the resource allocation as a result, the upstream data from the first UE is adjusted in the base station
Degree.
In the embodiment of the present invention, base station when for terminal distribution resource in its covering radius, will distribute to be located at it is described
Special subframe extends in time-domain resource except the pre-determined distance range of base station.Specific implementation is will to preset after special subframe
The sub-frame of uplink of quantity empties, to achieve the purpose that extend special subframe.
In practical application, based on the regulation of current LTE standard, the first UE in the embodiment of the present invention generally comprises position
In away from the terminal except the base station 100km.For the terminal within the scope of the pre-determined distance for being located at the base station, the base station
Resource distribution mode it is constant, defer to the regulation of current LTE standard.
In the embodiment of the present invention, due in resource allocation, the base station is by special son in the resource for distributing to the first UE
The sub-frame of uplink of preset quantity empties after frame, so, the base station is when receiving from the upstream data of the first UE, no
The sub-frame of uplink for being located at the preset quantity after special subframe in the upstream data is dispatched, the waste of resource is avoided.It is practical
In, when the base station distributes physical uplink control channel PUCCH resource for the first UE, also by resource
The sub-frame of uplink of preset quantity empties after middle special subframe.
Overlength distance based on current LTE-TDD system, which covers, to be required, in LTE-TDD system provided in an embodiment of the present invention
Data dispatching method in, base station for the first UE carry out resource allocation when, only by first sub-frame of uplink after special subframe
It empties, the special subframe is extended 1ms at this time.It is increased compared with the farthest coverage distance that current LTE standard agreement is supported
150km or so, the embodiment of the present invention can support the farthest coverage distance of 260km or so.That is, the embodiment of the present invention is sharp
It is emptied with first sub-frame of uplink after special subframe, it will be able to effectively avoid the line number up and down for being located at the terminal within 260km
According to interference.In addition, the embodiment of the present invention can also empty multiple sub-frame of uplink continuous after special subframe, so that described special
Subframe is extended several milliseconds, so as to support the covering of farther distance (being greater than 260km).
As shown in Fig. 2, Fig. 2 is that special subframe is extended front and back contrast schematic diagram, the special subframe is extended before only
The time slot in sf1 is occupied, and first sub-frame of uplink sf2 after the special subframe is emptied, so that the special subframe occupies
Time slot in sf1 and sf2 is equivalent to and extends original special subframe.
When distributing resource based on the base station for the first UE, the sub-frame of uplink of preset quantity after special subframe is emptied, institute
With the base station first determines whether the first UE for the downlink that will be sent before sending downlink data to the first UE
Whether the upstream data that data return occupies the sub-frame of uplink being set to null.The base station is according to judging result, it is determined whether really
The downlink data is sent to the first UE.
Specifically, if the base station determines that the first UE is directed to the upper line number that the downlink data that will be sent returns
According to the sub-frame of uplink being set to null just is occupied, then due to the base station to the sub-frame of uplink being set to null from the first UE not
Scheduling, so, the base station does not send the downlink data, avoids the waste of resource.
In addition, if the first UE needs to retransmit to the data that the base station is sent, the base station is to described
Before one UE sends retransmission instructions, whether the data for first determining whether that the first UE is retransmitted for the retransmission instructions just occupy quilt
The sub-frame of uplink emptied.The base station is according to judging result, it is determined whether sends retransmission instructions to the first UE at this moment.
Specifically, being set to if the base station determines that the data that the first UE is retransmitted for the retransmission instructions just occupy
Empty sub-frame of uplink, then do not dispatch the sub-frame of uplink being set to null from the first UE due to the base station, so, it is described
Base station does not send the retransmission instructions at this moment, avoids the waste of resource.
In practical application, as the response for sending data to the base station to the first UE, the base station can be herein
When to the first UE return acknowledgement character response message.Specifically, the base station can be with reselection suitable opportunity to the first UE
Retransmission instructions are sent, the data for avoiding the first UE from retransmitting just occupy the sub-frame of uplink being set to null.
In data dispatching method in LTE-TDD system provided in an embodiment of the present invention, base station is first terminal UE progress
Resource allocation, the resource allocation include emptying the sub-frame of uplink of preset quantity after special subframe, and the first UE is located at institute
Except the pre-determined distance range for stating base station；Based on the resource allocation, the base station is to the upstream data from the first UE
It is scheduled.Base station in the embodiment of the present invention is when for the terminal distribution resource of overlength distance, by present count after special subframe
The sub-frame of uplink of amount empties, i.e. the extension occupied time slot of special subframe.The present invention due to base station when distributing resource by first
The occupied time slot of special subframe between the downlink subframe and sub-frame of uplink of UE extends, so the present invention can be largely
The upstream data for avoiding the terminal of overlength distance from sending in advance interferes a upper downlink subframe.In addition, since base station is
Result based on resource allocation is scheduled data, so, base station passes through after not dispatching the special subframe from the terminal
The sub-frame of uplink of the preset quantity enables the system to accommodate longer time lead TA, reaches and overlength distance is supported to cover
The purpose of lid.Data dispatching method in LTE-TDD system provided in an embodiment of the present invention can largely avoid super remote
The upstream data that the terminal of distance is sent in advance interferes a upper downlink subframe.
The embodiment of the invention also provides the data scheduling devices in a kind of LTE-TDD system, with reference to Fig. 3, for the present invention
The data scheduling device structural schematic diagram in a kind of LTE-TDD system that embodiment provides, described device include:
Distribution module 301, for carrying out resource allocation for first terminal UE, the resource allocation includes will be after special subframe
The sub-frame of uplink of preset quantity empties, and the first UE is located at except the pre-determined distance range of the base station；
Scheduler module 302, for based on the resource allocation as a result, being carried out to the upstream data from the first UE
Scheduling.
It, will be special in the resource for distributing to the first UE since the base station is when carrying out resource allocation in the embodiment of the present invention
The sub-frame of uplink of preset quantity empties after different subframe, so, the base station is receiving the upstream data from the first UE
When, the sub-frame of uplink for being located at first quantity after special subframe in the upstream data is not dispatched, avoids the waste of resource.
It is required in addition, the overlength distance based on current LTE-TDD system covers, LTE-TDD provided in an embodiment of the present invention
In data scheduling device in system, base station, only will be on first after special subframe when carrying out resource allocation for the first UE
Row subframe empties, and the special subframe is extended 1ms at this time.Compared with the farthest coverage distance that current LTE standard agreement is supported
150km or so is increased, the embodiment of the present invention can support the farthest coverage distance of 260km or so.That is, the present invention is real
The interference for being located at the uplink and downlink data of the terminal within 260km can effectively be avoided by applying example.
When distributing resource based on the base station for the first UE, the sub-frame of uplink of preset quantity after special subframe is emptied, institute
Stating device can also include:
First judgment module, for before sending downlink data to the first UE, judging the first UE for institute
Whether the upstream data for stating downlink data return occupies the sub-frame of uplink being set to null；
First determining module, for according to judging result, it is determined whether the first UE of Xiang Suoshu sends the downlink data.
In addition, described device can also include:
Second judgment module, for before sending retransmission instructions to the first UE, judging the first UE for institute
Whether the data for stating retransmission instructions re-transmission occupy the sub-frame of uplink being set to null；
Second determining module, for according to judging result, it is determined whether the first UE of Xiang Suoshu sends retransmission instructions.
Specifically, described device can also include:
Sending module, the judging result for second judgment module be it is yes, then to the first UE send ACK ring
It answers.
Data scheduling device in LTE-TDD system provided in an embodiment of the present invention can be realized following functions: be first
Terminal UE carries out resource allocation, and the resource allocation includes emptying the sub-frame of uplink of preset quantity after special subframe, and described the
One UE is located at except the pre-determined distance range of the base station；Based on the resource allocation, to the upper line number from the first UE
According to being scheduled.Base station in the embodiment of the present invention will be preset when for the terminal distribution resource of overlength distance after special subframe
The sub-frame of uplink of quantity empties, i.e. the extension occupied time slot of special subframe.The present invention due to base station when distributing resource by
The occupied time slot of special subframe between the downlink subframe and sub-frame of uplink of one UE extends, so the present invention can be largely
The upstream data that ground avoids the terminal of overlength distance from sending in advance interferes a upper downlink subframe.In addition, due to base station
It is that the result based on resource allocation is scheduled data, so, base station is not by dispatching the special subframe from the terminal
The sub-frame of uplink of the preset quantity afterwards enables the system to accommodate longer time lead TA, reaches support overlength distance
The purpose of covering.Data scheduling device in LTE-TDD system provided in an embodiment of the present invention can largely avoid super
The upstream data that remote terminal is sent in advance interferes a upper downlink subframe.
The present invention also provides a kind of structural schematic diagrams of the data dispatch base station in LTE-TDD system, as shown in figure 4,
Wherein, the base station includes at least a memory 401 and at least one processor 402, further includes at least one network interface
403；It is connected with each other between memory 401, processor 402 and network interface 403 by bus.
The program code is transferred to the processor 402 for storing program code by memory 401.
Processor 402 is used to execute following steps according to the instruction in said program code: be provided for first terminal UE
Source distribution, the resource allocation includes emptying the sub-frame of uplink of preset quantity after special subframe, and the first UE is located at described
Except the pre-determined distance range of base station；It is based on the resource allocation as a result, to from the first UE upstream data carry out
Scheduling.
Further, the processor 402 is that first terminal UE carries out resource allocation, and the resource allocation includes will be special
First sub-frame of uplink empties after subframe.
Further, the processor 402 judges the first UE needle before sending downlink data to the first UE
Whether the sub-frame of uplink being set to null is occupied to the upstream data that the downlink data returns, and according to judging result, is determined
Whether to the first UE downlink data is sent.
Further, the processor 402 judges the first UE needle before sending retransmission instructions to the first UE
Whether the data retransmitted to the retransmission instructions occupy the sub-frame of uplink being set to null, and according to judging result, it is determined whether
Retransmission instructions are sent to the first UE.
Further, the processor 402 the re-transmission data occupy be set to null the sub-frame of uplink when, to
First UE sends acknowledgement character response.
For device embodiment, since it corresponds essentially to embodiment of the method, so related place is referring to method reality
Apply the part explanation of example.System embodiment described above is only schematical, wherein described be used as separation unit
The unit of explanation may or may not be physically separated, and component shown as a unit can be or can also be with
It is not physical unit, it can it is in one place, or may be distributed over multiple network units.It can be according to actual
It needs that some or all of the modules therein is selected to achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not
In the case where making the creative labor, it can understand and implement.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
It is provided for the embodiments of the invention data dispatching method, device and base station in a kind of LTE-TDD system above
It is described in detail, used herein a specific example illustrates the principle and implementation of the invention, the above reality
The explanation for applying example is merely used to help understand method and its core concept of the invention；Meanwhile for the general technology of this field
Personnel, according to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion this theory
Bright book content should not be construed as limiting the invention.
Claims (10)
1. the data dispatching method in a kind of LTE-TDD system, which is characterized in that the described method includes:
Base station is that first terminal UE carries out resource allocation, and the resource allocation includes by uplink of preset quantity after special subframe
Frame empties, and causes to do to the reception of the data of a upper downlink subframe to avoid the upstream data that the first UE is sent in advance
It disturbs；First UE is located at except the pre-determined distance range of the base station；
It is based on the resource allocation as a result, the base station is scheduled the upstream data from the first UE, and not
Dispatch the sub-frame of uplink for being located at the preset quantity after special subframe in the upstream data.
2. method according to claim 1, which is characterized in that the preset quantity is specially one.
3. method according to claim 1, which is characterized in that the method also includes:
The base station judges that the first UE is returned for the downlink data before sending downlink data to the first UE
Upstream data whether occupy the sub-frame of uplink being set to null, and according to judging result, it is determined whether the first UE of Xiang Suoshu hair
Send the downlink data.
4. method according to claim 1, which is characterized in that the method also includes:
The base station judges that the first UE is retransmitted for the retransmission instructions before sending retransmission instructions to the first UE
Data whether occupy the sub-frame of uplink being set to null, and according to judging result, it is determined whether the first UE of Xiang Suoshu sends weight
Teletype command.
5. method according to claim 4, which is characterized in that the method also includes:
If the data of the re-transmission occupy the sub-frame of uplink being set to null, the base station sends ACK to the first UE
Response.
6. the data scheduling device in a kind of LTE-TDD system, which is characterized in that described device includes:
Distribution module, for carrying out resource allocation for first terminal UE, the resource allocation includes by present count after special subframe
The sub-frame of uplink of amount empties, and the upstream data sent in advance to avoid the first UE connects to the data of a upper downlink subframe
Receipts interfere；First UE is located at except the pre-determined distance range of base station；
Scheduler module, for based on the resource allocation as a result, be scheduled to the upstream data from the first UE, and
And do not dispatch the sub-frame of uplink for being located at the preset quantity after special subframe in the upstream data.
7. device according to claim 6, which is characterized in that described device further include:
First judgment module, for the first UE send downlink data before, judge the first UE be directed to it is described under
Whether the upstream data that row data return occupies the sub-frame of uplink being set to null；
First determining module, for according to judging result, it is determined whether the first UE of Xiang Suoshu sends the downlink data.
8. device according to claim 6, which is characterized in that described device further include:
Second judgment module, for before sending retransmission instructions to the first UE, judging the first UE for described heavy
Whether the data that teletype command retransmits occupy the sub-frame of uplink being set to null；
Second determining module, for according to judging result, it is determined whether the first UE of Xiang Suoshu sends retransmission instructions.
9. device according to claim 8, which is characterized in that described device further include:
Sending module, for when the judging result of second judgment module, which is, is, the first UE of Xiang Suoshu to send acknowledgement character response.
10. the data dispatch base station in a kind of LTE-TDD system, which is characterized in that the base station includes memory and processor,
Said program code is transferred to the processor for storing program code by the memory；
The processor is used to execute following steps according to the instruction in said program code: carrying out resource for first terminal UE
Distribution, the resource allocation includes emptying the sub-frame of uplink of preset quantity after special subframe, is shifted to an earlier date to avoid the first UE
The upstream data of transmission interferes the reception of the data of a upper downlink subframe, and the first UE is located at the pre- of the base station
If except distance range；It is based on the resource allocation as a result, be scheduled to the upstream data from the first UE, and
The sub-frame of uplink for being located at the preset quantity after special subframe in the upstream data is not dispatched.
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