CN106452712A - Communication method and device for FDD system based on flexible duplex, base station and terminal - Google Patents
Communication method and device for FDD system based on flexible duplex, base station and terminal Download PDFInfo
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- CN106452712A CN106452712A CN201610921928.2A CN201610921928A CN106452712A CN 106452712 A CN106452712 A CN 106452712A CN 201610921928 A CN201610921928 A CN 201610921928A CN 106452712 A CN106452712 A CN 106452712A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
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Abstract
The invention provides a communication method and device for an FDD system based on flexible duplex, a base station and a terminal. The communication method for the FDD system based on flexible duplex is used for the base station, and comprises the following steps: detecting the types of interference of neighboring cells on flexible subframes of uplink frequency spectrum of a target cell; according to the detection result, dividing the flexible subframes of the uplink frequency spectrum into at least one subframe set; and notifying the terminal to report CQI of each subframe set in the at least one subframe set. According to the technical scheme, accurate reporting of the CQI of each flexible subframe in the period can be ensured, and meanwhile, CQI report cost is effectively reduced.
Description
Technical field
The present invention relates to communication technical field, in particular to a kind of communication party of the FDD system based on flexible duplex
Method, a kind of communicator, a kind of base station and a kind of terminal.
Background technology
Current 5th Generation Mobile Communication System (5G) is just among the research of academia and industrial circle.Wherein super-intensive network
(Ultra-Dense Network, UDN) is an important technology of 5G.UDN refers in network design, for some data
Demand is big, the scene (such as stadium, railway station Waiting Lounge, office space etc.) more than data cube computation number, carries out super-intensive
Networking, the interval between access website may only have tens of rice.One technology that may use under UDN scene is flexibly double
Work (Flexible Duplex), i.e. the demand according to business, in FDD (Frequency Division Duplexing, frequency division
Duplex) bearing downlink business in some subframes of uplink spectrum in system.As shown in figure 1, in UL subframe in uplink spectrum
Bearing downlink business, in UDN scene, often occurs downlink traffic more (for example having more video, picture to download),
Downlink resource is busy and the most of idle situation of ascending resource, can more effectively utilize FDD system using flexible duplex technology
The frequency spectrum resource of system, lifts Consumer's Experience.Flexibly duplex technology will some subframes of uplink spectrum use as descending sub frame,
Downlink data is sent on the running time-frequency resource of these sub-frame of uplink.These are made the sub-frame of uplink quilt of downlink data transmission by peculation
Referred to as flexible sub-frame, keeps the sub-frame of uplink as transmitting uplink data, referred to as non-flexible subframe.
In LTE (Long Term Evolution, Long Term Evolution) network, the frequency duplex factor as one of cell may be 1,
Namely each different cell is all to use identical frequency resource, in such cases, if adjacent base station is using different
Flexible sub-frame configures, then be likely to result in up-downgoing in uplink spectrum and interlock the problem of interference, specifically, as shown in Fig. 2 base station
1/2/3 neighbor cell each other, illustrate only the flexible sub-frame configuration of cell uplink frequency spectrum, in subframe 0 or subframe 1, for
Terminal in cell 1, it is subject to the descending interference from neighbor cell.Because the transmission power of base station is generally more stable,
Therefore interference level that in cell 1, terminal is subject to is also more stable.But in subframe 3, as shown in figure 3, the terminal in cell 1 is in
Downlink receiving state, but neighbor cell 2/3 is in up transmission state, then and in cell 1, terminal can be subject to the staggered interference of up-downgoing
Impact.When be in cell 1 terminal of downlink reception in cell 2 terminal of up transmission close together when, cell 1
Middle terminal will be subject to the staggered interference of stronger up-downgoing；And when this is distant, it is upper and lower that the terminal in cell 1 receives
The staggered interference of row is weaker.In the same manner, for subframe 2, the terminal in cell 1 there is also similar up-downgoing and interlocks the problem of interference.
As can be seen here, because, in flexible sub-frame 0/1/2/3, the interference type suffered by the terminal of cell 1 is different, the interference water that it is subject to
Put down and be likely to have larger difference.
And in correlation technique, in the CQI to flexible sub-frame, (Channel Quality Indicator, channel quality is believed
Breath) carry out on give the correct time, if report cycle is larger, for example every 10ms reports a CQI, due to the interference feelings of each flexible sub-frame
Condition is different, then single CQI is difficult to accurately reflect the CQI situation of each different flexible sub-frame in report cycle, but if pin
Each flexible sub-frame is reported with a CQI, then reports expense by having larger CQI.
Therefore, how while guaranteeing the CQI of each flexible sub-frame in accurate report cycle, reduce CQI and report expense
Become technical problem urgently to be resolved hurrily.
Content of the invention
The present invention is based at least one above-mentioned technical problem it is proposed that a kind of new FDD system based on flexible duplex
The communication plan of system, can effectively reduce on CQI while guaranteeing the CQI of each flexible sub-frame in accurate report cycle
Report expense.
In view of this, the present invention proposes a kind of communication means of the FDD system based on flexible duplex, for base station, wraps
Include：The interference type of the flexible sub-frame of the uplink spectrum to Target cell for the detection neighbor cell；According to testing result, on described
The flexible sub-frame of line frequency spectrum is divided at least one sub-frame set；Notify every at least one sub-frame set described in terminal to report
The CQI of individual sub-frame set.
In this technical scheme, by the interference class of the flexible sub-frame of the uplink spectrum to Target cell according to neighbor cell
The flexible sub-frame of uplink spectrum is divided at least one sub-frame set by the testing result of type, due to suffered by each flexible sub-frame
The CQI of each flexible sub-frame can be affected to interference type, when the interference type that each flexible sub-frame is subject to is identical, it is corresponding
CQI difference less, so suffered interference type identical flexible sub-frame is divided into same sub-frame set, and notifies terminal to report
The CQI of frame set, so that terminal need not the CQI of a pair each flexible sub-frame be reported, effectively reduces CQI and reports out
Pin, also ensure that the CQI value reporting can accurately reflect the channel situation of flexible sub-frame simultaneously.
It is preferable that the flexible son of the uplink spectrum to Target cell for the described detection neighbor cell in technique scheme
The step of the interference type of frame, specifically includes：Obtain the flexible sub-frame configuration of the uplink spectrum of described neighbor cell；By described phase
The flexible sub-frame configuration of the uplink spectrum of adjacent cell is compared with the flexible sub-frame configuration of the uplink spectrum of described Target cell,
To obtain described interference type.
In this technical scheme, can be by the flexible sub-frame configuration of the uplink spectrum of neighbor cell and the upper line frequency of Target cell
The flexible sub-frame configuration of spectrum is compared and is obtained interference type it is ensured that the accuracy of the testing result of interference type.
In any of the above-described technical scheme it is preferable that described obtain described neighbor cell uplink spectrum flexible son
The step of the configuration of frame, specifically includes：Obtain the flexible sub-frame configuration of the uplink spectrum of described neighbor cell based on X2 interface；Or
Obtain the uplink spectrum of described neighbor cell based on the control node for controlling described Target cell and described neighbor cell
Flexible sub-frame configures.
The flexible sub-frame configuration of the uplink spectrum of neighbor cell in this technical scheme, can be obtained in several ways,
As obtained by X2 interface, can also be obtained by control node, meet different demands, ensure can be accurate simultaneously
Really get the flexible sub-frame configuration of the uplink spectrum of neighbor cell.
According to the second aspect of the invention it is proposed that a kind of based on flexible duplex FDD system communication means, for end
End, including：The CQI for each sub-frame set at least one sub-frame set receiving base station transmission reports notice, wherein,
At least one sub-frame set described by described base station according to neighbor cell the flexible sub-frame of the uplink spectrum to Target cell dry
Disturb type, the flexible sub-frame of described uplink spectrum is carried out divide and obtain；The CQI of measurement each sub-frame set described；Xiang Ji
Station reports the CQI of each sub-frame set described.
In this technical scheme, the CQI for sub-frame set being sent by receiving base station reports notice, measures and to base
Station reports the CQI of sub-frame set, and specifically, base station can notify the flexible sub-frame included by each sub-frame set of terminal, and terminal can
Measure the CQI as each sub-frame set for the CQI of arbitrary flexible sub-frame in each sub-frame set, in addition base station can also be directly
Specify the arbitrary flexible sub-frame in each sub-frame set, and notify terminal to measure the CQI of this flexible sub-frame as each subframe collection
The CQI closing is reported, so that terminal need not the CQI of a pair each flexible sub-frame be reported, effectively reduces CQI
Report expense, also ensure that the CQI value reporting can accurately reflect the channel situation of flexible sub-frame simultaneously.
In technique scheme it is preferable that the described CQI reporting step from each sub-frame set described to base station it
Before, also include：Judge whether the CQI report cycle of described Target cell is more than or equal to scheduled duration；On determining described CQI
When the report cycle is more than or equal to described scheduled duration, the step of the described CQI reporting each sub-frame set described to base station of execution.
In this technical scheme, by when determining that CQI report cycle is more than or equal to scheduled duration, then reporting every height
The CQI of frame set, further ensure that the CQI value reporting can accurately reflect the channel situation of flexible sub-frame.
According to the third aspect of the invention we it is proposed that a kind of communicator, it is applied in flexibly duplexing FDD system, institute
State communicator to include：Detector unit, for detecting the interference of the flexible sub-frame of the uplink spectrum to Target cell for the neighbor cell
Type；Division unit, for according to testing result, the flexible sub-frame of described uplink spectrum being divided at least one subframe collection
Close；Notification unit, for notifying the CQI of each sub-frame set at least one sub-frame set described in terminal to report.
In this technical scheme, by the interference class of the flexible sub-frame of the uplink spectrum to Target cell according to neighbor cell
The flexible sub-frame of uplink spectrum is divided at least one sub-frame set by the testing result of type, due to suffered by each flexible sub-frame
The CQI of each flexible sub-frame can be affected to interference type, when the interference type that each flexible sub-frame is subject to is identical, it is corresponding
CQI difference less, so suffered interference type identical flexible sub-frame is divided into same sub-frame set, and notifies terminal to report
The CQI of frame set, so that terminal need not the CQI of a pair each flexible sub-frame be reported, effectively reduces CQI and reports out
Pin, also ensure that the CQI value reporting can accurately reflect the channel situation of flexible sub-frame simultaneously.
It is preferable that described detector unit includes in technique scheme：Acquiring unit is described adjacent little for obtaining
The flexible sub-frame configuration of the uplink spectrum in area；Determining unit, for joining the flexible sub-frame of the uplink spectrum of described neighbor cell
Put and compare with the configuration of the flexible sub-frame of the uplink spectrum of described Target cell, to obtain described interference type.
In this technical scheme, can be by the flexible sub-frame configuration of the uplink spectrum of neighbor cell and the upper line frequency of Target cell
The flexible sub-frame configuration of spectrum is compared and is obtained interference type it is ensured that the accuracy of the testing result of interference type.
In any of the above-described technical scheme it is preferable that described acquiring unit specifically for：Obtained described based on X2 interface
The flexible sub-frame configuration of the uplink spectrum of neighbor cell；Or based on the control for controlling described Target cell and described neighbor cell
Node processed obtains the flexible sub-frame configuration of the uplink spectrum of described neighbor cell.
The flexible sub-frame configuration of the uplink spectrum of neighbor cell in this technical scheme, can be obtained in several ways,
As obtained by X2 interface, can also be obtained by control node, meet different demands, ensure can be accurate simultaneously
Really get the flexible sub-frame configuration of the uplink spectrum of neighbor cell.
According to the fourth aspect of the invention it is proposed that a kind of communicator, it is applied in flexibly duplexing FDD system, institute
State communicator to include：Receiving unit, for receive base station transmission for each the subframe collection at least one sub-frame set
The CQI closing reports notice, and wherein, at least one sub-frame set described is upper to Target cell according to neighbor cell by described base station
The interference type of the flexible sub-frame of line frequency spectrum, carries out to the flexible sub-frame of described uplink spectrum dividing and obtains；Measuring unit, uses
CQI in measurement each sub-frame set described；Reporting unit, for reporting the CQI of each sub-frame set described to base station.
In this technical scheme, the CQI for sub-frame set being sent by receiving base station reports notice, measures and to base
Station reports the CQI of sub-frame set, and specifically, base station can notify the flexible sub-frame included by each sub-frame set of terminal, and terminal can
Measure the CQI as each sub-frame set for the CQI of arbitrary flexible sub-frame in each sub-frame set, in addition base station can also be directly
Specify the arbitrary flexible sub-frame in each sub-frame set, and notify terminal to measure the CQI of this flexible sub-frame as each subframe collection
The CQI closing is reported, so that terminal need not the CQI of a pair each flexible sub-frame be reported, effectively reduces CQI
Report expense, also ensure that the CQI value reporting can accurately reflect the channel situation of flexible sub-frame simultaneously.
It is preferable that also including in technique scheme：Judging unit, the CQI for judging described Target cell reports
Whether the cycle is more than or equal to scheduled duration；In described judging unit, described reporting unit is specifically for determining that described CQI reports
The CQI of each sub-frame set described when cycle is more than or equal to described scheduled duration, is reported to described base station.
In this technical scheme, by when determining that CQI report cycle is more than or equal to scheduled duration, then reporting every height
The CQI of frame set, further ensure that the CQI value reporting can accurately reflect the channel situation of flexible sub-frame.
According to the fifth aspect of the invention it is also proposed that a kind of base station, including：As any one of technique scheme
Communicator.
According to the sixth aspect of the invention it is also proposed that a kind of terminal, including：As any one of technique scheme
Communicator.
By above technical scheme, can be while guaranteeing the CQI of each flexible sub-frame in accurate report cycle, effectively
Reduce CQI and report expense.
Brief description
Fig. 1 shows the structural representation of the up-downgoing frequency spectrum in FDD system in correlation technique；
Fig. 2 and Fig. 3 shows that the up-downgoing between neighbor cell in correlation technique interlocks the schematic diagram of interference；
Fig. 4 shows showing of the communication means of the FDD system based on flexible duplex according to an embodiment of the invention
Meaning flow chart；
Fig. 5 shows the communication means of the FDD system based on flexible duplex according to another embodiment of the invention
Schematic flow diagram；
Fig. 6 shows the schematic block diagram of communicator according to an embodiment of the invention；
Fig. 7 shows the schematic block diagram of communicator according to another embodiment of the invention；
Fig. 8 shows the schematic block diagram of base station according to an embodiment of the invention；
Fig. 9 shows the schematic block diagram of terminal according to an embodiment of the invention；
Figure 10 shows the schematic diagram of flexible sub-frame set according to an embodiment of the invention.
Specific embodiment
In order to be more clearly understood that the above objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specifically real
Mode of applying is further described in detail to the present invention.It should be noted that in the case of not conflicting, the enforcement of the application
Feature in example and embodiment can be mutually combined.
Elaborate a lot of details in the following description in order to fully understand the present invention, but, the present invention also may be used
To be implemented different from other modes described here using other, therefore, protection scope of the present invention is not described below
Specific embodiment restriction.
Fig. 4 shows the exemplary flow of the communication means of the FDD system based on flexible duplex according to embodiments of the present invention
Figure.
As shown in figure 4, the communication means of the FDD system based on flexible duplex according to an embodiment of the invention, use
In base station, including：
Step 402, the interference type of the flexible sub-frame of the uplink spectrum to Target cell for the detection neighbor cell.
Step 404, according to testing result, the flexible sub-frame of described uplink spectrum is divided at least one sub-frame set.
Step 406, notifies the CQI of each sub-frame set at least one sub-frame set described in terminal to report.
In this technical scheme, by the interference class of the flexible sub-frame of the uplink spectrum to Target cell according to neighbor cell
The flexible sub-frame of uplink spectrum is divided at least one sub-frame set by the testing result of type, due to suffered by each flexible sub-frame
The CQI of each flexible sub-frame can be affected to interference type, when the interference type that each flexible sub-frame is subject to is identical, it is corresponding
CQI difference less, so suffered interference type identical flexible sub-frame is divided into same sub-frame set, and notifies terminal to report
The CQI of frame set, so that terminal need not the CQI of a pair each flexible sub-frame be reported, effectively reduces CQI and reports out
Pin, also ensure that the CQI value reporting can accurately reflect the channel situation of flexible sub-frame simultaneously.
It is preferable that the flexible son of the uplink spectrum to Target cell for the described detection neighbor cell in technique scheme
The step of the interference type of frame, specifically includes：Obtain the flexible sub-frame configuration of the uplink spectrum of described neighbor cell；By described phase
The flexible sub-frame configuration of the uplink spectrum of adjacent cell is compared with the flexible sub-frame configuration of the uplink spectrum of described Target cell,
To obtain described interference type.
In this technical scheme, can be by the flexible sub-frame configuration of the uplink spectrum of neighbor cell and the upper line frequency of Target cell
The flexible sub-frame configuration of spectrum is compared and is obtained interference type it is ensured that the accuracy of the testing result of interference type.
In any of the above-described technical scheme it is preferable that described obtain described neighbor cell uplink spectrum flexible son
The step of the configuration of frame, specifically includes：Obtain the flexible sub-frame configuration of the uplink spectrum of described neighbor cell based on X2 interface；Or
Obtain the uplink spectrum of described neighbor cell based on the control node for controlling described Target cell and described neighbor cell
Flexible sub-frame configures.
The flexible sub-frame configuration of the uplink spectrum of neighbor cell in this technical scheme, can be obtained in several ways,
As obtained by X2 interface, can also be obtained by control node, meet different demands, ensure can be accurate simultaneously
Really get the flexible sub-frame configuration of the uplink spectrum of neighbor cell.
Specifically, in conjunction with Figure 10, technical scheme is described further.
As shown in Figure 10, setting cell 1 is Target cell, and cell 2 and cell 3 are the neighbor cell of cell 1, are connect by X2
The flexible sub-frame configuration of the uplink spectrum of mouth or control node acquisition cell 2 and cell 3, and the spirit by the uplink spectrum of cell 1
The flexible sub-frame configuration of the uplink spectrum of sub-frame configuration of living and cell 2 and cell 3 is compared, for cell 1, flexible sub-frame
0/1/5/6 descending interference being subject to neighbor cell, flexible sub-frame 2/7 can be subject to up staggered interference and the cell 3 of cell 2
Descending interference, flexible sub-frame 3/8 can be subject to the up staggered interference of neighbor cell it is possible to mark off 3 flexible sub-frame collection
Close 1002,1004,1006, wherein, flexible sub-frame set 1002 includes flexible sub-frame 0/1/5/6, and flexible sub-frame set 1004 is wrapped
Include flexible sub-frame 2/7, flexible sub-frame set 1006 includes flexible sub-frame 3/8.
If the expense that CQI reports need to be reduced further, the size of flexible sub-frame set, for example, restriction set can also be limited
Close number and be less than 2, then certain two in above-mentioned 3 flexible sub-frame set can be merged, such as by flexible sub-frame set
1004 and 1006 merge, and that is, flexible sub-frame 2/3/7/8 collectively forms flexible sub-frame set 1004.
Fig. 5 shows the communication means of the FDD system based on flexible duplex according to another embodiment of the invention
Schematic flow diagram.
As shown in figure 5, the communication means of the FDD system based on flexible duplex according to another embodiment of the invention,
For terminal, including：
Step 502, the CQI for each sub-frame set at least one sub-frame set that reception base station sends reports logical
Know, wherein, at least one sub-frame set described is flexible to the uplink spectrum of Target cell according to neighbor cell by described base station
The interference type of subframe, carries out to the flexible sub-frame of described uplink spectrum dividing and obtains.
Step 504, the CQI of measurement each sub-frame set described.
Step 506, reports the CQI of each sub-frame set described to base station.
In this technical scheme, the CQI for sub-frame set being sent by receiving base station reports notice, measures and to base
Station reports the CQI of sub-frame set, and specifically, base station can notify the flexible sub-frame included by each sub-frame set of terminal, and terminal can
Measure the CQI as each sub-frame set for the CQI of arbitrary flexible sub-frame in each sub-frame set, in addition base station can also be directly
Specify the arbitrary flexible sub-frame in each sub-frame set, and notify terminal to measure the CQI of this flexible sub-frame as each subframe collection
The CQI closing is reported, so that terminal need not the CQI of a pair each flexible sub-frame be reported, effectively reduces CQI
Report expense, also ensure that the CQI value reporting can accurately reflect the channel situation of flexible sub-frame simultaneously.
In technique scheme it is preferable that the described CQI reporting step from each sub-frame set described to base station it
Before, also include：Judge whether the CQI report cycle of described Target cell is more than or equal to scheduled duration；On determining described CQI
When the report cycle is more than or equal to described scheduled duration, the step of the described CQI reporting each sub-frame set described to base station of execution.
In this technical scheme, by when determining that CQI report cycle is more than or equal to scheduled duration, then reporting every height
The CQI of frame set, further ensure that the CQI value reporting can accurately reflect the channel situation of flexible sub-frame.
Fig. 6 shows the schematic block diagram of communicator according to an embodiment of the invention.
As shown in fig. 6, communicator 600 according to embodiments of the present invention, it is applied in flexibly duplexing FDD system, leads to
T unit 600 includes：Detector unit 602, division unit 604 and notification unit 606.
Wherein, detector unit 602 is used for detecting the interference of the flexible sub-frame of the uplink spectrum to Target cell for the neighbor cell
Type；Division unit 604 is used for according to testing result, and the flexible sub-frame of described uplink spectrum is divided at least one subframe collection
Close；Notification unit 606 is used for notifying the CQI of each sub-frame set at least one sub-frame set described in terminal to report.
In this technical scheme, by the interference class of the flexible sub-frame of the uplink spectrum to Target cell according to neighbor cell
The flexible sub-frame of uplink spectrum is divided at least one sub-frame set by the testing result of type, due to suffered by each flexible sub-frame
The CQI of each flexible sub-frame can be affected to interference type, when the interference type that each flexible sub-frame is subject to is identical, it is corresponding
CQI difference less, so suffered interference type identical flexible sub-frame is divided into same sub-frame set, and notifies terminal to report
The CQI of frame set, so that terminal need not the CQI of a pair each flexible sub-frame be reported, effectively reduces CQI and reports out
Pin, also ensure that the CQI value reporting can accurately reflect the channel situation of flexible sub-frame simultaneously.
It is preferable that described detector unit 602 includes in technique scheme：Acquiring unit 6022, described for obtaining
The flexible sub-frame configuration of the uplink spectrum of neighbor cell；Determining unit 6024, for by the uplink spectrum of described neighbor cell
Flexible sub-frame configuration is configured with the flexible sub-frame of the uplink spectrum of described Target cell compares, to obtain described interference class
Type.
In this technical scheme, can be by the flexible sub-frame configuration of the uplink spectrum of neighbor cell and the upper line frequency of Target cell
The flexible sub-frame configuration of spectrum is compared and is obtained interference type it is ensured that the accuracy of the testing result of interference type.
In any of the above-described technical scheme it is preferable that described acquiring unit 6022 specifically for：Obtained based on X2 interface
The flexible sub-frame configuration of the uplink spectrum of described neighbor cell；Or based on for controlling described Target cell and described neighbor cell
Control node obtain described neighbor cell uplink spectrum flexible sub-frame configuration.
The flexible sub-frame configuration of the uplink spectrum of neighbor cell in this technical scheme, can be obtained in several ways,
As obtained by X2 interface, can also be obtained by control node, meet different demands, ensure can be accurate simultaneously
Really get the flexible sub-frame configuration of the uplink spectrum of neighbor cell.
Fig. 7 shows the schematic block diagram of communicator according to another embodiment of the invention.
As shown in fig. 7, communicator 700 according to another embodiment of the invention, it is applied to the FDD system of flexibly duplex
In system, communicator 700 includes：Receiving unit 702, measuring unit 704 and reporting unit 706.
Wherein, receiving unit 702 be used for receive base station transmission for each the subframe collection at least one sub-frame set
The CQI closing reports notice, and wherein, at least one sub-frame set described is upper to Target cell according to neighbor cell by described base station
The interference type of the flexible sub-frame of line frequency spectrum, carries out to the flexible sub-frame of described uplink spectrum dividing and obtains；Measuring unit 704
For measuring the CQI of each sub-frame set described；Reporting unit 706 is used for reporting the CQI of each sub-frame set described to base station.
In this technical scheme, the CQI for sub-frame set being sent by receiving base station reports notice, measures and to base
Station reports the CQI of sub-frame set, and specifically, base station can notify the flexible sub-frame included by each sub-frame set of terminal, and terminal can
Measure the CQI as each sub-frame set for the CQI of arbitrary flexible sub-frame in each sub-frame set, in addition base station can also be directly
Specify the arbitrary flexible sub-frame in each sub-frame set, and notify terminal to measure the CQI of this flexible sub-frame as each subframe collection
The CQI closing is reported, so that terminal need not the CQI of a pair each flexible sub-frame be reported, effectively reduces CQI
Report expense, also ensure that the CQI value reporting can accurately reflect the channel situation of flexible sub-frame simultaneously.
It is preferable that also including in technique scheme：Judging unit 708, for judging the CQI of described Target cell
Whether report cycle is more than or equal to scheduled duration；Described reporting unit 706 is specifically for determining in described judging unit 708
The CQI of each sub-frame set described when described CQI report cycle is more than or equal to described scheduled duration, is reported to described base station.
In this technical scheme, by when determining that CQI report cycle is more than or equal to scheduled duration, then reporting every height
The CQI of frame set, further ensure that the CQI value reporting can accurately reflect the channel situation of flexible sub-frame.
Fig. 8 shows the schematic block diagram of base station according to an embodiment of the invention.
As shown in figure 8, base station 800 according to an embodiment of the invention, including：Communicator 600 as shown in Figure 6.
Fig. 9 shows the schematic block diagram of terminal according to an embodiment of the invention.
As shown in figure 9, terminal 900 according to an embodiment of the invention, including：Communicator 700 as shown in Figure 7.
Technical scheme is described in detail above in association with accompanying drawing, the present invention propose a kind of new based on flexibly double
The communication plan of the FDD system of work, effectively can drop while guaranteeing the CQI of each flexible sub-frame in accurate report cycle
Low CQI reports expense.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (12)
1. a kind of communication means of the FDD system based on flexible duplex, for base station it is characterised in that including：
The interference type of the flexible sub-frame of the uplink spectrum to Target cell for the detection neighbor cell；
According to testing result, the flexible sub-frame of described uplink spectrum is divided at least one sub-frame set；
Notify the CQI of each sub-frame set at least one sub-frame set described in terminal to report.
2. communication means according to claim 1 is it is characterised in that described detection neighbor cell is up to Target cell
The step of the interference type of the flexible sub-frame of frequency spectrum, specifically includes：
Obtain the flexible sub-frame configuration of the uplink spectrum of described neighbor cell；
Flexible sub-frame by the flexible sub-frame configuration of the uplink spectrum of described neighbor cell and the uplink spectrum of described Target cell
Configuration is compared, to obtain described interference type.
3. communication means according to claim 2 is it is characterised in that the uplink spectrum of the described neighbor cell of described acquisition
The step of the configuration of flexible sub-frame, specifically includes：
Obtain the flexible sub-frame configuration of the uplink spectrum of described neighbor cell based on X2 interface；Or
Obtain the upper line frequency of described neighbor cell based on the control node for controlling described Target cell and described neighbor cell
The flexible sub-frame configuration of spectrum.
4. a kind of communication means of the FDD system based on flexible duplex, for terminal it is characterised in that including：
The CQI for each sub-frame set at least one sub-frame set receiving base station transmission reports notice, wherein, described
The interference class of at least one sub-frame set flexible sub-frame of the uplink spectrum to Target cell according to neighbor cell by described base station
Type, carries out to the flexible sub-frame of described uplink spectrum dividing and obtains；
The CQI of measurement each sub-frame set described；
Report the CQI of each sub-frame set described to base station.
5. communication means according to claim 4 is it is characterised in that report each sub-frame set described described to base station
The step of CQI before, also include：
Judge whether the CQI report cycle of described Target cell is more than or equal to scheduled duration；
When determining that described CQI report cycle is more than or equal to described scheduled duration, execution described to base station report described each
The step of the CQI of sub-frame set.
6. a kind of communicator, is applied in flexibly duplexing FDD system it is characterised in that described communicator includes：
Detector unit, for detecting the interference type of the flexible sub-frame of the uplink spectrum to Target cell for the neighbor cell；
Division unit, for according to testing result, the flexible sub-frame of described uplink spectrum being divided at least one sub-frame set；
Notification unit, for notifying the CQI of each sub-frame set at least one sub-frame set described in terminal to report.
7. communicator according to claim 6 is it is characterised in that described detector unit includes：
Acquiring unit, for obtaining the flexible sub-frame configuration of the uplink spectrum of described neighbor cell；
Determining unit, for configuring the upper line frequency with described Target cell by the flexible sub-frame of the uplink spectrum of described neighbor cell
The flexible sub-frame configuration of spectrum is compared, to obtain described interference type.
8. communicator according to claim 7 it is characterised in that described acquiring unit specifically for：
Obtain the flexible sub-frame configuration of the uplink spectrum of described neighbor cell based on X2 interface；Or
Obtain the upper line frequency of described neighbor cell based on the control node for controlling described Target cell and described neighbor cell
The flexible sub-frame configuration of spectrum.
9. a kind of communicator, is applied in flexibly duplexing FDD system it is characterised in that described communicator includes：
Receiving unit, the CQI for each sub-frame set at least one sub-frame set for receiving base station transmission reports
Notify, wherein, the spirit of described at least one sub-frame set uplink spectrum to Target cell according to neighbor cell by described base station
The interference type of subframe of living, carries out to the flexible sub-frame of described uplink spectrum dividing and obtains；
Measuring unit, for measuring the CQI of each sub-frame set described；
Reporting unit, for reporting the CQI of each sub-frame set described to base station.
10. communicator according to claim 9 is it is characterised in that also include：
Judging unit, whether the CQI report cycle for judging described Target cell is more than or equal to scheduled duration；
In described judging unit, described reporting unit is specifically for determining that described CQI report cycle is more than or equal to described predetermined
The CQI of each sub-frame set described during duration, is reported to described base station.
A kind of 11. base stations are it is characterised in that include：
Communicator as any one of claim 6 to 8.
A kind of 12. terminals are it is characterised in that include：
Communicator as described in claim 9 or 10.
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| CN201610921928.2A CN106452712A (en) | 2016-10-21 | 2016-10-21 | Communication method and device for FDD system based on flexible duplex, base station and terminal |
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| CN201610921928.2A CN106452712A (en) | 2016-10-21 | 2016-10-21 | Communication method and device for FDD system based on flexible duplex, base station and terminal |
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