CN103096374A - Method used for carrying out interference rejection on user equipment in heterogeneous network and device - Google Patents
Method used for carrying out interference rejection on user equipment in heterogeneous network and device Download PDFInfo
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- CN103096374A CN103096374A CN2011103489783A CN201110348978A CN103096374A CN 103096374 A CN103096374 A CN 103096374A CN 2011103489783 A CN2011103489783 A CN 2011103489783A CN 201110348978 A CN201110348978 A CN 201110348978A CN 103096374 A CN103096374 A CN 103096374A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The invention provides a method used for carrying out interference rejection on user equipment in a heterogeneous network. The heterogeneous network comprises a macro base station and a low power node. The user equipment is served by the low power node, and the low power node transmits data to the user equipment through scheduled resource blocks. The method comprises the following steps: receiving measurement reports from the user equipment; on the basis of the measurement reports, confirming resource units suspending data transmission in the resource blocks; and informing the user equipment to carry out rate matching so that the user equipment can receive data transmitted by the resource blocks according to execution results of rate matching.
Description
Technical field
The present invention relates to the communications field, particularly subscriber equipment is disturbed the method and apparatus of inhibition in heterogeneous network.
Background technology
Heterogeneous network (HetNet) is the technology of a kind of elevator system throughput and network whole efficiency.In heterogeneous network, low power nodes (Low Power Node, LPN) is placed in macro base station coverage area by cloth, forms the heterogeneous system with the different node types that cover.Low power nodes is for example slight (Pico) base station, family (Femto/Home) base station, little (Micro) base station, long distance wireless head (Remote Radio Head, RRH) and repeater (Relay) etc.Present common such as indoor Home eNodeB, outdoor focus and indoor focus etc. of heterogeneous network scene.
In heterogeneous network very part and parcel be exactly with each the internodal interference problem that covers.In heterogeneous network, the macro base station transmitting power is usually much larger than low power nodes, and the subscriber equipment at the cell boarder place of low power nodes usually can be because signal be weak and/or suffer the interference of other cell signal, and causes signal quality relatively poor.
(be also LTE-Advanced at LTE Release 10, be called for short LTE-A) in, inter-cell interference cancellation technology (eICIC) for heterogeneous network has been discussed, and wherein power reduces and movable accurate blank subframe (the almost blank subframe that reduces, ABS) be applied to macrocell, suppress or alleviate macrocell to the impact of the low power nodes residential quarter such as picocell.
Yet in order to keep the backwards compatibility with subscriber equipment, the cell reference signals of macrocell (CRS) still continues to send, and no matter whether subframe is configured to above-mentioned accurate blank subframe.Therefore, the cell reference signals of macrocell may disturb the transfer of data (for example transfer of data on physical down link sharing channel (PDSCH)) of picocell always.
In the discussion of 3GPP RAN1, proposed to disturb in conjunction with the subscriber equipment rate-matched by Pico residential quarter time-out the transmission of data (Tx muting) scheme of inhibition.Yet in order to realize this scheme, Pico residential quarter and subscriber equipment thereof need to be known Resource Block (RB), the Resource Unit (RE) suspend the transmission of data due to the CRS interference of macrocell for the transmission of data.In addition, the Pico subscriber equipment also needs to know when be suitable for beginning to carry out the rate-matched corresponding with suspending the transmission of data.Above-mentioned these problems all need further research and solve.
Therefore, this area needs a kind of can the realization to combine with the subscriber equipment rate-matched and disturb the scheme of inhibition by suspending the transmission of data.
Summary of the invention
For above problem, the invention provides a kind of method and apparatus that subscriber equipment is disturbed inhibition in heterogeneous network, method and apparatus implementation procedure of the present invention is simple, the use signaling is less, can realize simply, efficiently, easily time-out the transmission of data and subscriber equipment rate-matched, thereby complete the interference inhibition to the subscriber equipment of low power nodes.
According to a first aspect of the invention, a kind of method of subscriber equipment being disturbed inhibition in heterogeneous network is provided, wherein this heterogeneous network comprises macro base station and low power nodes, subscriber equipment is served by low power nodes, and low power nodes is passed through predetermined Resource Block to the user device transmissions data.The method can comprise the following steps: receive the measurement report from subscriber equipment; Based on measurement report, determine the Resource Unit of the time-out the transmission of data in Resource Block; And notifying user equipment execution rate-matched, so that subscriber equipment receives the data of transmitting by Resource Block according to the rate-matched execution result.
According to a second aspect of the invention, a kind of method of subscriber equipment being disturbed inhibition in heterogeneous network is provided, wherein this heterogeneous network comprises macro base station and low power nodes, subscriber equipment is served by low power nodes, and low power nodes is passed through predetermined Resource Block to the user device transmissions data.The method can comprise the following steps: send measurement report to low power nodes; In response to the notice about the execution rate-matched from low power nodes, carry out rate-matched for the Resource Block that comprises the Resource Unit that suspends the transmission of data; And be received in the data of transmitting in Resource Block according to the rate-matched execution result.
According to a third aspect of the invention we, a kind of equipment that subscriber equipment is disturbed inhibition in heterogeneous network is provided, wherein this heterogeneous network comprises macro base station and low power nodes, subscriber equipment is served by low power nodes, and low power nodes is passed through predetermined Resource Block to the user device transmissions data.This equipment can comprise: the measurement report receiving system is arranged to the measurement report that receives from subscriber equipment; Determine device, be arranged to based on measurement report, determine the Resource Unit of the time-out the transmission of data in Resource Block; And notifying device, be arranged to notifying user equipment and carry out rate-matched, so that subscriber equipment receives the data of transmitting by Resource Block according to the rate-matched execution result.
According to a forth aspect of the invention, a kind of equipment that subscriber equipment is disturbed inhibition in heterogeneous network is provided, wherein this heterogeneous network comprises macro base station and low power nodes, subscriber equipment is served by low power nodes, and low power nodes is passed through predetermined Resource Block to the user device transmissions data.This equipment can comprise: dispensing device is arranged to low power nodes and sends measurement report; The rate-matched final controlling element is arranged in response to the notice about the execution rate-matched from low power nodes, carries out rate-matched for the Resource Block that comprises the Resource Unit that suspends the transmission of data; And data sink, be arranged to according to the rate-matched execution result and be received in the data of transmitting in Resource Block.
By the following description of preferred implementation to the explanation principle of the invention, and by reference to the accompanying drawings, other features of the present invention and advantage will be apparent.
Description of drawings
By below in conjunction with the description of the drawings, and along with understanding more comprehensively of the present invention, other purposes of the present invention and effect will become more clear and easy to understand, wherein:
Fig. 1 is applicable to the schematic diagram of heterogeneous network according to an embodiment of the invention;
Fig. 2 is the flow chart that subscriber equipment is disturbed the method for inhibition in heterogeneous network according to an embodiment of the invention;
Fig. 3 be according to another embodiment of the invention subscriber equipment is disturbed the flow chart of the method for inhibition in heterogeneous network;
Fig. 4 is the flow chart that subscriber equipment is disturbed the method for inhibition in heterogeneous network according to an embodiment of the invention;
Fig. 5 be according to another embodiment of the invention subscriber equipment is disturbed the flow chart of the method for inhibition in heterogeneous network;
Fig. 6 is the block diagram that subscriber equipment is disturbed the equipment of inhibition in heterogeneous network according to an embodiment of the invention; And
Fig. 7 be according to another embodiment of the invention subscriber equipment is disturbed the block diagram of the equipment of inhibition in heterogeneous network.
In all above-mentioned accompanying drawings, identical label represents to have identical, similar or corresponding feature or function.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention are explained in more detail and illustrate.Should be appreciated that drawings and Examples of the present invention only are used for exemplary effect, is not for restriction protection scope of the present invention.
Flow chart in accompanying drawing and block diagram illustrate the system according to the various execution modes of the present invention, architectural framework in the cards, function and the operation of method and apparatus.In this, each square frame in flow chart or block diagram can represent the part of module, program segment or a code, and the part of described module, program segment or code comprises the executable instruction of one or more logic functions for realizing regulation.Also should be noted that some as alternative realization in, what the function that marks in square frame also can be marked to be different from accompanying drawing occurs in sequence.For example, in fact the square frame that two adjoining lands represent can be carried out substantially concurrently, and they also can be carried out by opposite order sometimes, and this decides according to related function.Also be noted that, each square frame in block diagram and/or flow chart and the combination of the square frame in block diagram and/or flow chart, can realize with the hardware based system of the special use of the function that puts rules into practice or operation, perhaps can realize with the combination of specialized hardware and computer instruction.Should be appreciated that drawings and Examples of the present invention only are used for exemplary effect, is not for restriction protection scope of the present invention.Below in conjunction with accompanying drawing, the present invention is explained in more detail and illustrates.
In the present invention, subscriber equipment (UE) can be various types of terminals, for example mobile phone, personal digital assistant (PDA), portable computer or have other any suitable terminal of mobile communication function.The base station can be for example Node B, eNodeB (eNB), access point (AP), radio access station (RAS), etc.Macro base station can be for example grand (Macro) eNodeB/eNB, and it for example can produce macrocell (Macro Cell).Low power nodes can be for example femto base station (Pico eNodeB/eNB), Home eNodeB (FemtoeNodeB/eNB), little base station (Micro eNodeB/eNB), long distance wireless head (RRH) and repeater, etc.These low power nodes for example can produce picocell (Pico Cell), home base station cells (Femto Cell), Microcell (Micro Cell), etc.
It should be noted, although the present invention has mainly used the example of Pico eNB as low power nodes, this is only exemplary, can realize technical scheme of the present invention with any other suitable low power nodes fully.
Fig. 1 is applicable to the schematic diagram of heterogeneous network according to an embodiment of the invention.
Communication environment shown in Figure 1 schematically shows a heterogeneous network.This heterogeneous network schematically comprises macro base station (for example, Macro eNB) 110, femto base station (for example Pico eNB) and subscriber equipment (UE) 130.The coverage of macro base station 110 schematically illustrates with " macrocell (Macro cell) ", and the coverage of femto base station schematically illustrates with " picocell (Pico cell) ".
As shown in Figure 1, heterogeneous network comprises a macro base station 110 and a femto base station 120, and femto base station 120 is served its subscriber equipment 130, and picocell 120 passes through predetermined Resource Block to described user device transmissions data.Wherein, subscriber equipment 130 can switch to picocell from macrocell, may be subject to the interference of the cell reference signals of macrocell in the process that communicates with picocell 120.
For convenience of description, the present invention is based on the LTE/LTE-A system is described.Those skilled in the art are appreciated that fully said system is only schematically, rather than circumscribed.
Fig. 2 is the flow chart that subscriber equipment is disturbed the method 200 of inhibition in heterogeneous network according to an embodiment of the invention.Heterogeneous network can be for example communication environment as shown in Figure 1.Wherein, this heterogeneous network can comprise macro base station and low power nodes, and subscriber equipment is served by low power nodes, and low power nodes is passed through predetermined Resource Block to the user device transmissions data.Method 200 shown in Figure 2 for example can be carried out by low power nodes (for example femto base station).
At step S201, receive the measurement report from subscriber equipment.
According to embodiments of the invention, comprise at least from the measurement report of subscriber equipment: the identification information that produces the neighbor cell that disturbs for this subscriber equipment.
according to one embodiment of present invention, measurement report can comprise: produce Physical Cell Identifier (PCID), residential quarter group identification (CGI), Reference Signal Received Power (RSRP), the Reference Signal Received Quality (RSRQ) of the neighbor cell that disturbs for this subscriber equipment, etc.
At step S202, based on measurement report, determine the Resource Unit of the time-out the transmission of data in Resource Block.
According to embodiments of the invention, can determine to suspend in several ways the Resource Unit of the transmission of data based on measurement report.
In one embodiment, can determine subscriber equipment is produced the neighbor cell that disturbs based on measurement report; Obtain the cell reference signals of neighbor cell; And will the Resource Unit corresponding with cell reference signals be defined as suspending the Resource Unit of the transmission of data.
In another embodiment, can determine subscriber equipment is produced the neighbor cell that disturbs based on measurement report; Neighbor cell is compared interference strength and the predetermined threshold that subscriber equipment produces; Interference strength is defined as interfered cell greater than the neighbor cell of predetermined threshold; Obtain the cell reference signals of interfered cell; And will the Resource Unit corresponding with cell reference signals be defined as suspending the Resource Unit of the transmission of data.
At step S203, notifying user equipment is carried out rate-matched, so that subscriber equipment receives the data of transmitting by Resource Block according to the rate-matched execution result.
According to embodiments of the invention, can be to subscriber equipment transmission rate matching signal in physical down link sharing channel (PDSCH), Physical Downlink Control Channel (PDCCH) or the Physical Downlink Control Channel (e-PDCCH) that strengthens, thus notifying user equipment is carried out rate-matched.After subscriber equipment receives the rate-matched signaling, know that femto base station is notified and oneself will begin to carry out rate-matched, in order to receive the data of transmitting by Resource Block according to the rate-matched execution result.
In one embodiment, can utilize the Radio Resource that transmits on PDSCH to control (RRC) signaling and realize the rate-matched signaling.In another embodiment, can define a new signaling of transmitting as the rate-matched signaling on PDCCH or e-PDCCH.E-PDCCH can take the part resource of PDSCH.
According to embodiments of the invention, the rate-matched signaling not only can notifying user equipment begin to carry out rate-matched, can further include the information about time of reception, this information equipment for indicating user begins to be received according to the execution result of rate-matched the data of transmitting Resource Block from this time of reception.
Fig. 3 be according to another embodiment of the invention subscriber equipment is disturbed the flow chart of the method 300 of inhibition in heterogeneous network.Heterogeneous network can be for example communication environment as shown in Figure 1.Wherein, this heterogeneous network can comprise macro base station and low power nodes, and subscriber equipment is served by low power nodes, and low power nodes is passed through predetermined Resource Block to the user device transmissions data.Method 300 shown in Figure 3 for example can be carried out by low power nodes (for example Pico eNB).
At step S301, receive the measurement report from subscriber equipment.
This step and step S201 are similar.Measurement report comprises the identification information that produces the neighbor cell that disturbs for this subscriber equipment at least.according to one embodiment of present invention, measurement report can comprise: produce neighbor cell PCID, CGI, RSRP, the RSRQ etc. that disturb for this subscriber equipment.
In addition, be understandable that, above-mentioned is only illustrative and not restrictive for example, and measurement report can also comprise that those skilled in the art commonly use or other available suitable parameter.
At step S302, based on measurement report, determine subscriber equipment is produced the neighbor cell that disturbs.
In the present embodiment, suppose that the measurement report that receives comprises the identification information of macrocell shown in Figure 1 in step S301, this shows that this macrocell has produced interference to subscriber equipment.At step S301, can read the PCID that comprises and/or CGI etc. from this measurement report, determine subscriber equipment is produced the concrete residential quarter of disturbing.
At step S303, obtain the cell reference signals of neighbor cell.
After having determined that subscriber equipment is produced the neighbor cell that disturbs, can obtain the cell reference signals of neighbor cell, i.e. CRS.In an embodiment of the present invention, the process of obtaining CRS can comprise and obtains corresponding time-frequency position and the sequence thereof of CRS.The mode of obtaining CRS has multiple, and those skilled in the art can complete obtaining of CRS by known existing mode, and is not limited to certain specific mode.
At step S304, will the Resource Unit corresponding with cell reference signals be defined as suspending the Resource Unit of the transmission of data.
According to embodiments of the invention, a Resource Block can comprise a plurality of Resource Units, and Resource Unit can be used as the least unit in Resource Block.After having obtained CRS, can determine in Resource Block which or which Resource Unit is corresponding with CRS.For example, can will be used for one or more Resource Units of transmission CRS as the Resource Unit corresponding with this CRS.Then, the Resource Unit corresponding with CRS just can be used as the Resource Unit that suspends the transmission of data.Follow-up in the data transmission procedure of its subscriber equipment at femto base station, the transmission of data not in the Resource Unit of the time-out the transmission of data in Resource Block, and the transmission of data in the Resource Unit except the Resource Unit that suspends the transmission of data in Resource Block.
according to other embodiments of the invention, can also improve the process of the Resource Unit of the definite time-out the transmission of data shown in step S302-S304.For example, in one embodiment, after having determined that based on measurement report subscriber equipment is produced the neighbor cell that disturbs, neighbor cell can be compared interference strength and the predetermined threshold that subscriber equipment produces.Wherein, this interference strength can be according to obtaining from the information in the measurement report of subscriber equipment (for example, RSRP and/or RSRQ), predetermined threshold can be those skilled in the art rule of thumb appointment or predefined according to other criterion.Then, interference strength can be defined as interfered cell greater than the neighbor cell of predetermined threshold, be equivalent to like this neighbor cell of interference user equipment has been carried out refinement, only for those, large interfered cells to a certain extent of interference of subscriber equipment are just carried out subsequent processing steps, namely obtain these interfered cells cell reference signals, and will the Resource Unit corresponding with this cell reference signals be defined as suspending the Resource Unit of the transmission of data.
At step S305, in PDSCH to subscriber equipment transmission rate matching signal.
In the present embodiment, can utilize the RRC signaling of transmitting on PDSCH to realize the rate-matched signaling.In one embodiment of the invention, the RRC signaling can be defined as a boolean (BOOLEAN) type signal.When the RRC signaling is " TRUE ", can carry out rate-matched for the Resource Block that next arrives by equipment for indicating user; When the RRC signaling is " FALSE ", can needn't carry out rate-matched for the Resource Block that next arrives by equipment for indicating user.
according to another embodiment of the invention, can define a new signaling of transmitting as the rate-matched signaling on PDCCH or e-PDCCH.Because the renewal of control channel is very fast, so this mode is specially adapted to carry out when subscriber equipment the situation that fast speed moves.Comparatively speaking, the RRC signaling goes for subscriber equipment and carries out the situation that relatively slow speed moves.
In addition, be understandable that, the signaling of the upper new definition of the RRC signaling on above-mentioned PDSCH or PDCCH or e-PDCCH, those skilled in the art can utilize any other suitable signaling well known in the art to come notifying user equipment to begin to carry out rate-matched.
In the present embodiment, owing to adopting the RRC signaling as the rate-matched signaling, thus subscriber equipment for example can be acquiescently the 1st subframe (referred to as " next subframe ") after it receives the subframe of rate-matched signaling receive according to the rate-matched result data that Resource Block transmits.
according to another embodiment of the invention, when adopting PDCCH or ePDCCH transmission rate matching signal, subscriber equipment for example can carry out rate-matched and receive according to the rate-matched result data that Resource Block transmits in its subframe (referred to as " current subframe ") that receives the rate-matched signaling acquiescently.
According to embodiments of the invention, the rate-matched signaling not only can notifying user equipment begin to carry out rate-matched, can further include the information about time of reception, this information equipment for indicating user begins to be received according to the execution result of rate-matched the data of transmitting Resource Block from this time of reception.In one embodiment, the RRC signaling can be defined as the bit that also comprises one or more instruction time of information except comprising above-mentioned boolean's offset, be used for representing the information about time of reception.For example, the RRC signaling can comprise a temporal information bit, when the value of this bit is " 0 ", shows to the subscriber equipment indication to receive the data of Resource Block transmission in current subframe; When the value of this bit is " 1 ", show to the subscriber equipment indication to receive the data of Resource Block transmission in next subframe; By that analogy.
It should be understood that in an embodiment according to the present invention, can be implemented as any suitable form about the information of time of reception, and be not limited to above-mentioned exemplary example.
Fig. 4 is the flow chart that subscriber equipment is disturbed the method 400 of inhibition in heterogeneous network according to an embodiment of the invention.Heterogeneous network can be for example communication environment as shown in Figure 1.Wherein, this heterogeneous network can comprise macro base station and low power nodes, and subscriber equipment is served by low power nodes, and low power nodes is passed through predetermined Resource Block to the user device transmissions data.Method 400 shown in Figure 4 for example can be carried out by the subscriber equipment that low power nodes (for example femto base station) serves.
At step S401, send measurement report to low power nodes.
According to embodiments of the invention, measurement report comprises at least: the identification information that produces the neighbor cell that disturbs for this subscriber equipment.
according to one embodiment of present invention, measurement report can comprise: produce Physical Cell Identifier (PCID), residential quarter group identification (CGI), Reference Signal Received Power (RSRP), the Reference Signal Received Quality (RSRQ) of the neighbor cell that disturbs for this subscriber equipment, etc.
At step S402, in response to the notice about the execution rate-matched from low power nodes, carry out rate-matched for the Resource Block that comprises the Resource Unit that suspends the transmission of data.
According to embodiments of the invention, performing step S402 in several ways.In one embodiment, can at first determine neighbor cell that subscriber equipment produce is disturbed, obtain the cell reference signals of neighbor cell, then will the Resource Unit corresponding with cell reference signals be defined as suspending in Resource Block the Resource Unit of the transmission of data.In another embodiment, can at first determine subscriber equipment is produced the neighbor cell that disturbs, neighbor cell is compared interference strength and the predetermined threshold that subscriber equipment produces, interference strength is defined as interfered cell greater than the neighbor cell of predetermined threshold, obtain the cell reference signals of interfered cell, then will the Resource Unit corresponding with cell reference signals be defined as suspending in Resource Block the Resource Unit of the transmission of data.
According to embodiments of the invention, can be the rate-matched signaling that receives in PDSCH, PDCCH or e-PDCCH about the notice of carrying out rate-matched.In one embodiment, the rate-matched signaling can be implemented as the RRC signaling of transmitting on PDSCH.In another embodiment, the rate-matched signaling can be the signaling of a new definition on PDCCH or e-PDCCH.
According to embodiments of the invention, the rate-matched signaling may further include the information about time of reception, and this information equipment for indicating user begins to be received according to the execution result of rate-matched the data of transmitting Resource Block from this time of reception
At step S403, be received in the data of transmitting in Resource Block according to the rate-matched execution result.
According to embodiments of the invention, can according to the information about time of reception in the rate-matched signaling, begin to be received according to the execution result of rate-matched the data of transmitting Resource Block from time of reception.
According to embodiments of the invention, can be according to the Resource Unit of the time-out the transmission of data in rate-matched execution result recognition resource piece, and receive the data of transmitting by the Resource Unit outside the Resource Unit that suspends the transmission of data in Resource Block.
Fig. 5 be according to another embodiment of the invention subscriber equipment is disturbed the flow chart of the method 500 of inhibition in heterogeneous network.Heterogeneous network can be for example communication environment as shown in Figure 1.Wherein, this heterogeneous network can comprise macro base station and low power nodes, and subscriber equipment is served by low power nodes, and low power nodes is passed through predetermined Resource Block to the user device transmissions data.Method 500 shown in Figure 5 for example can be carried out by the subscriber equipment that low power nodes (for example Pico eNB) serves.
At step S501, send measurement report to low power nodes.
This step and step S401 are similar.Measurement report comprises the identification information that produces the neighbor cell that disturbs for this subscriber equipment at least.according to one embodiment of present invention, measurement report can comprise: produce neighbor cell PCID, CGI, RSRP, the RSRQ etc. that disturb for this subscriber equipment.
In an embodiment according to the present invention, measurement report can obtain and send according to multiple technologies means well known in the art at the subscriber equipment place.
At step S502, receive the rate-matched signaling in PDSCH.
In the present embodiment, the rate-matched signaling is to utilize the RRC signaling of transmitting on PDSCH to realize.Therefore, the RRC signaling in step S502 reception PDSCH.In one embodiment of the invention, the RRC signaling can be defined as a boolean (BOOLEAN) type signal.When the RRC signaling that receives was " TRUE ", subscriber equipment can carry out rate-matched for the Resource Block that next arrives; When the RRC signaling was " FALSE ", subscriber equipment can not carry out rate-matched.
according to another embodiment of the invention, the rate-matched signaling can be defined as the new signaling of transmitting on PDCCH or e-PDCCH.Because the renewal of control channel is very fast, so being specially adapted to subscriber equipment, this mode carries out the situation that fast speed moves.Comparatively speaking, the RRC signaling goes for subscriber equipment and carries out the situation that relatively slow speed moves.
At step S503, determine subscriber equipment is produced the neighbor cell that disturbs.
According to embodiments of the invention, signal instruction and/or signal strength signal intensity that subscriber equipment can the periodic measurement neighbor cell, thus can determine which neighbor cell produces oneself disturbs.Those skilled in the art can utilize multiple technologies means well known in the art to carry out this deterministic process.
At step S504, obtain the cell reference signals of neighbor cell.
After having determined that subscriber equipment is produced the neighbor cell that disturbs, can obtain the cell reference signals of neighbor cell, i.e. CRS.In an embodiment of the present invention, the process of obtaining CRS can comprise and obtains corresponding time-frequency position and the sequence thereof of CRS.The mode of obtaining CRS has multiple, and those skilled in the art can complete obtaining of CRS by known existing mode, and is not limited to certain specific mode.
At step S505, will the Resource Unit corresponding with cell reference signals be defined as suspending in Resource Block the Resource Unit of the transmission of data.
According to embodiments of the invention, after having obtained CRS, can determine in Resource Block which or which Resource Unit is corresponding with CRS.For example, can will be used for one or more Resource Units of transmission CRS as the Resource Unit corresponding with this CRS.Then, the Resource Unit corresponding with CRS just can be used as the Resource Unit that suspends the transmission of data.
according to other embodiments of the invention, can also improve the process of the Resource Unit of the definite time-out the transmission of data shown in step S503-S505.For example, in one embodiment, after having determined that subscriber equipment is produced the neighbor cell that disturbs, neighbor cell can be compared interference strength and the predetermined threshold that subscriber equipment produces.Wherein, this interference strength for example can be obtained by intensity and/or the quality of measuring from the CRS of neighbor cell by subscriber equipment, predetermined threshold can be those skilled in the art rule of thumb appointment or predefined according to other criterion.Then, interference strength can be defined as interfered cell greater than the neighbor cell of predetermined threshold, be equivalent to like this neighbor cell of interference user equipment has been carried out refinement, only for those, large interfered cells to a certain extent of interference of subscriber equipment are just carried out subsequent processing steps, namely obtain these interfered cells cell reference signals, and will the Resource Unit corresponding with this cell reference signals be defined as suspending the Resource Unit of the transmission of data.
At step S506, receive the data of transmitting by the Resource Unit outside the Resource Unit that suspends the transmission of data in Resource Block.
In the present embodiment, owing to adopting the RRC signaling as the rate-matched signaling, so subscriber equipment for example can receive the data of Resource Block transmission acquiescently according to the rate-matched result in next subframe.
according to another embodiment of the invention, when adopting PDCCH or ePDCCH transmission rate matching signal, subscriber equipment for example can receive the data of Resource Block transmission acquiescently according to the rate-matched result in current subframe.
According to embodiments of the invention, the rate-matched signaling not only can notifying user equipment begin to carry out rate-matched, can further include the information about time of reception, this information equipment for indicating user begins to be received according to the execution result of rate-matched the data of transmitting Resource Block from this time of reception.Can according to the information about time of reception in the rate-matched signaling, begin to be received according to the execution result of rate-matched the data of transmitting Resource Block from time of reception.For example, during as the rate-matched signaling, may further include a temporal information bit when the RRC signaling, the value that subscriber equipment detects this bit receives the data of Resource Block transmission during for " 0 " in the subframe identical with wherein receiving the rate-matched signaling; When the value that this bit detected was " 1 ", subframe the 1st subframe afterwards that receives therein the rate-matched signaling received the data of Resource Block transmission.
Fig. 6 is the block diagram that subscriber equipment is disturbed the equipment 600 of inhibition in heterogeneous network according to an embodiment of the invention.Heterogeneous network can be for example communication environment as shown in Figure 1.Wherein, this heterogeneous network can comprise macro base station and low power nodes, and subscriber equipment is served by low power nodes, and low power nodes is passed through predetermined Resource Block to the user device transmissions data.Realize in the low power nodes of for example femto base station and so on that equipment 600 shown in Figure 6 can be in heterogeneous network, perhaps can realize in other any suitable equipment that those skilled in the art can use.Equipment 600 can be carried out method shown in Figure 2 200 and method 300 shown in Figure 3.
According to embodiments of the invention, equipment 600 can comprise: measurement report receiving system 610 is arranged to the measurement report that receives from subscriber equipment; Determine device 620, be arranged to based on measurement report, determine the Resource Unit of the time-out the transmission of data in Resource Block; And notifying device 630, be arranged to notifying user equipment and carry out rate-matched, so that subscriber equipment receives the data of transmitting by Resource Block according to the rate-matched execution result.
According to embodiments of the invention, measurement report can comprise at least: the identification information that produces the neighbor cell that disturbs for subscriber equipment.
According to embodiments of the invention, determine that device 620 can comprise: be used for based on measurement report, determine subscriber equipment is produced the device of the neighbor cell that disturbs; Device for the cell reference signals that obtains neighbor cell; And the device that is used for will the Resource Unit corresponding with cell reference signals being defined as suspending the Resource Unit of the transmission of data.
According to embodiments of the invention, determine that device 620 can comprise: be used for based on measurement report, determine subscriber equipment is produced the device of the neighbor cell that disturbs; Be used for the device that interference strength that neighbor cell is produced subscriber equipment and predetermined threshold compare; Be used for interference strength is defined as greater than the neighbor cell of predetermined threshold the device of interfered cell; Device for the cell reference signals that obtains interfered cell; And the device that is used for will the Resource Unit corresponding with cell reference signals being defined as suspending the Resource Unit of the transmission of data.
According to embodiments of the invention, notifying device 630 can comprise: be used for the device to subscriber equipment transmission rate matching signal at the Physical Downlink Control Channel e-PDCCH of physical down link sharing channel PDSCH, physical downlink control channel PDCCH or enhancing.
According to embodiments of the invention, the rate-matched signaling can comprise the information about time of reception, is used to indicate subscriber equipment and begins to be received according to the execution result of rate-matched the data of transmitting Resource Block from time of reception.
Fig. 7 be according to another embodiment of the invention subscriber equipment is disturbed the block diagram of the equipment 700 of inhibition in heterogeneous network.Heterogeneous network can be for example communication environment as shown in Figure 1.Wherein, this heterogeneous network can comprise macro base station and low power nodes, and subscriber equipment is served by low power nodes, and low power nodes is passed through predetermined Resource Block to the user device transmissions data.Realize in the low power nodes of for example femto base station and so on the subscriber equipment of serving that equipment 700 shown in Figure 7 can be in heterogeneous network, perhaps can realize in other any suitable equipment that those skilled in the art can use.Equipment 700 can be carried out method shown in Figure 4 400 and method 500 shown in Figure 5.
According to embodiments of the invention, equipment 700 can comprise: dispensing device 710 is arranged to low power nodes and sends measurement report; Rate-matched final controlling element 720 is arranged in response to the notice about the execution rate-matched from low power nodes, carries out rate-matched for the Resource Block that comprises the Resource Unit that suspends the transmission of data; And data sink 730, be arranged to according to the rate-matched execution result and be received in the data of transmitting in Resource Block.
According to embodiments of the invention, measurement report can comprise at least: the identification information that produces the neighbor cell that disturbs for subscriber equipment.
According to embodiments of the invention, rate-matched final controlling element 720 can comprise: the device that is used for determining subscriber equipment is produced the neighbor cell that disturbs; Device for the cell reference signals that obtains neighbor cell; And be used for the Resource Unit corresponding with cell reference signals is defined as the device that Resource Block suspends the Resource Unit of the transmission of data.
According to embodiments of the invention, rate-matched final controlling element 720 can comprise: the device that is used for determining subscriber equipment is produced the neighbor cell that disturbs; Be used for the device that interference strength that neighbor cell is produced subscriber equipment and predetermined threshold compare; Be used for interference strength is defined as greater than the neighbor cell of predetermined threshold the device of interfered cell; Device for the cell reference signals that obtains interfered cell; And be used for the Resource Unit corresponding with cell reference signals is defined as the device that Resource Block suspends the Resource Unit of the transmission of data.
According to embodiments of the invention, can be wherein the rate-matched signaling that receives in the Physical Downlink Control Channel e-PDCCH of physical down link sharing channel PDSCH, physical downlink control channel PDCCH or enhancing about the notice of carrying out rate-matched.
According to embodiments of the invention, the rate-matched signaling can comprise the information about time of reception, and wherein data sink 730 can comprise: be used for beginning from time of reception the device that execution result according to rate-matched is received in the data that Resource Block transmits.
According to embodiments of the invention, data sink 730 can comprise: be used for the device according to the Resource Unit of the time-out the transmission of data of rate-matched execution result recognition resource piece; And the device that be used for to receive the data that the Resource Unit outside the Resource Unit that suspends the transmission of data by Resource Block transmits.
According to embodiments of the invention, wherein low power nodes is femto base station (for example PicoBS, Pico eNodeB/eNB).
Subscriber equipment is disturbed the method and apparatus implementation procedure of inhibition simple, uses signaling less in heterogeneous network according to of the present invention, can realize simply, efficiently, easily time-out the transmission of data and subscriber equipment rate-matched, thereby complete the interference inhibition to the subscriber equipment of low power nodes.
The disclosed method of embodiments of the present invention can realize in the combination of software, hardware or software and hardware.Hardware components can utilize special logic to realize; Software section can be stored in memory, and by suitable instruction execution system, for example microprocessor, personal computer (PC) or large-scale computer are carried out.In a preferred embodiment, the present invention is embodied as software, and it includes but not limited to firmware, resident software, microcode etc.
And, embodiments of the present invention can also take can from computer can with or the form of the computer program of computer-readable medium access, these media provide program code use or be combined with it for computer or any instruction execution system.For the purpose of description, computer can with or computer-readable mechanism can be any tangible device, it can comprise, storage, communication, propagation or transmission procedure to be to be used or to be combined with it by instruction execution system, device or equipment.
Medium can be electric, magnetic, light, electromagnetism, ultrared or semi-conductive system (or device or device) or propagation medium.The example of computer-readable medium comprises semiconductor or solid-state memory, tape, removable computer diskette, random access storage device (RAM), read-only memory (ROM), hard disc and CD.The example of CD comprises compact disk-read-only memory (CD-ROM), compact disk-read/write (CD-R/W) and DVD at present.
Be suitable for storing/or the system that carries out program code according to the embodiment of the present invention will comprise at least one processor, it directly or by system bus is coupled to memory component indirectly.Local storage, the mass storage that memory component utilizes the term of execution of can being included in program code actual and the interim storage that at least a portion program code is provided are in order to must fetch the cache memory of the number of times of code reduce the term of execution from mass storage.
I/O or I/O equipment (including but not limited to keyboard, display, pointing apparatus etc.) can directly or by middle I/O controller be coupled to system.
Network adapter also can be coupled to system, so that system can be coupled to by the privately owned or public network of centre other system or remote printer or memory device.Modulator-demodulator, cable modem and Ethernet card are only several examples of current available types of network adapters.
Should be noted that for embodiments of the present invention are more readily understood, top description has been omitted to be known for a person skilled in the art and may to be essential some ins and outs more specifically for the realization of embodiments of the present invention.
It is in order to illustrate and to describe that specification of the present invention is provided, rather than is used for exhaustive or limits the invention to disclosed form.For those of ordinary skill in the art, many modifications and changes all are fine.
Therefore; selecting and describing execution mode is in order to explain better principle of the present invention and practical application thereof; and those of ordinary skills are understood, under the prerequisite that does not break away from essence of the present invention, within all modifications and change all fall into protection scope of the present invention defined by the claims.
Claims (27)
1. method of subscriber equipment being disturbed inhibition in heterogeneous network, wherein said heterogeneous network comprises macro base station and low power nodes, described subscriber equipment is served by described low power nodes, to described user device transmissions data, described method comprises described low power nodes by predetermined Resource Block:
Reception is from the measurement report of described subscriber equipment;
Based on described measurement report, determine the Resource Unit of the time-out the transmission of data in described Resource Block; And
Notify described subscriber equipment to carry out rate-matched, so that described subscriber equipment receives the data of transmitting by described Resource Block according to described rate-matched execution result.
2. method according to claim 1, wherein said measurement report comprises at least: the identification information that produces the neighbor cell that disturbs for described subscriber equipment.
3. method according to claim 1, wherein based on described measurement report, determine that the Resource Unit of the time-out the transmission of data in described Resource Block comprises:
Based on described measurement report, determine described subscriber equipment is produced the neighbor cell that disturbs;
Obtain the cell reference signals of described neighbor cell; And
Will the Resource Unit corresponding with described cell reference signals be defined as suspending the Resource Unit of the transmission of data.
4. method according to claim 1, wherein based on described measurement report, determine that the Resource Unit of the time-out the transmission of data in described Resource Block comprises:
Based on described measurement report, determine described subscriber equipment is produced the neighbor cell that disturbs;
Described neighbor cell is compared interference strength and the predetermined threshold that described subscriber equipment produces;
Interference strength is defined as interfered cell greater than the neighbor cell of predetermined threshold;
Obtain the cell reference signals of described interfered cell; And
Will the Resource Unit corresponding with described cell reference signals be defined as suspending the Resource Unit of the transmission of data.
5. method according to claim 1, wherein notify described subscriber equipment to carry out rate-matched and comprise:
In the Physical Downlink Control Channel e-PDCCH of physical down link sharing channel PDSCH, physical downlink control channel PDCCH or enhancing to described subscriber equipment transmission rate matching signal.
6. method according to claim 5, wherein said rate-matched signaling comprises the information about time of reception, is used to indicate described subscriber equipment and begins to be received according to the execution result of described rate-matched the data of transmitting described Resource Block from described time of reception.
7. method of subscriber equipment being disturbed inhibition in heterogeneous network, wherein said heterogeneous network comprises macro base station and low power nodes, described subscriber equipment is served by described low power nodes, to described user device transmissions data, described method comprises described low power nodes by predetermined Resource Block:
Send measurement report to described low power nodes;
In response to the notice about the execution rate-matched from described low power nodes, carry out rate-matched for the described Resource Block that comprises the Resource Unit that suspends the transmission of data; And
Be received according to described rate-matched execution result the data of transmitting in described Resource Block.
8. method according to claim 7, wherein said measurement report comprises at least: the identification information that produces the neighbor cell that disturbs for described subscriber equipment.
9. method according to claim 7, wherein carry out rate-matched for the described Resource Block that comprises the Resource Unit that suspends the transmission of data and comprise:
Determine described subscriber equipment is produced the neighbor cell that disturbs;
Obtain the cell reference signals of described neighbor cell; And
Will the Resource Unit corresponding with described cell reference signals be defined as suspending in described Resource Block the Resource Unit of the transmission of data.
10. method according to claim 7, wherein carry out rate-matched for the described Resource Block that comprises the Resource Unit that suspends the transmission of data and comprise:
Determine described subscriber equipment is produced the neighbor cell that disturbs;
Described neighbor cell is compared interference strength and the predetermined threshold that described subscriber equipment produces;
Interference strength is defined as interfered cell greater than the neighbor cell of predetermined threshold;
Obtain the cell reference signals of described interfered cell; And
Will the Resource Unit corresponding with described cell reference signals be defined as suspending in described Resource Block the Resource Unit of the transmission of data.
11. method according to claim 7, wherein said notice about the execution rate-matched is the rate-matched signaling that receives in the Physical Downlink Control Channel e-PDCCH of physical down link sharing channel PDSCH, physical downlink control channel PDCCH or enhancing.
12. method according to claim 11, wherein said rate-matched signaling comprises the information about time of reception, wherein is received according to described rate-matched execution result the data of transmitting in described Resource Block and comprises:
Begin to be received according to the execution result of described rate-matched the data of transmitting described Resource Block from described time of reception.
13. method according to claim 7 wherein is received according to described rate-matched execution result the data of transmitting in described Resource Block and comprises:
Resource Unit according to the time-out the transmission of data in the described Resource Block of described rate-matched execution result identification; And
The data that reception is transmitted by the Resource Unit outside the Resource Unit of described time-out the transmission of data in described Resource Block.
14. equipment that subscriber equipment is disturbed inhibition in heterogeneous network, wherein said heterogeneous network comprises macro base station and low power nodes, described subscriber equipment is served by described low power nodes, to described user device transmissions data, described equipment comprises described low power nodes by predetermined Resource Block:
The measurement report receiving system is arranged to the measurement report that receives from described subscriber equipment;
Determine device, be arranged to based on described measurement report, determine the Resource Unit of the time-out the transmission of data in described Resource Block; And
Notifying device is arranged to and notifies described subscriber equipment to carry out rate-matched, so that described subscriber equipment receives the data of transmitting by described Resource Block according to described rate-matched execution result.
15. equipment according to claim 14, wherein said measurement report comprises at least: the identification information that produces the neighbor cell that disturbs for described subscriber equipment.
16. equipment according to claim 14, wherein said definite device comprises:
Be used for based on described measurement report, determine described subscriber equipment is produced the device of the neighbor cell that disturbs;
Device for the cell reference signals that obtains described neighbor cell; And
Be used for will the Resource Unit corresponding with described cell reference signals being defined as suspending the device of the Resource Unit of the transmission of data.
17. equipment according to claim 14, wherein said definite device comprises:
Be used for based on described measurement report, determine described subscriber equipment is produced the device of the neighbor cell that disturbs;
Be used for the device that interference strength that described neighbor cell is produced described subscriber equipment and predetermined threshold compare;
Be used for interference strength is defined as greater than the neighbor cell of predetermined threshold the device of interfered cell;
Device for the cell reference signals that obtains described interfered cell; And
Be used for will the Resource Unit corresponding with described cell reference signals being defined as suspending the device of the Resource Unit of the transmission of data.
18. equipment according to claim 14, wherein said notifying device comprises:
Be used for the device to described subscriber equipment transmission rate matching signal at the Physical Downlink Control Channel e-PDCCH of physical down link sharing channel PDSCH, physical downlink control channel PDCCH or enhancing.
19. equipment according to claim 18, wherein said rate-matched signaling comprises the information about time of reception, is used to indicate described subscriber equipment and begins to be received according to the execution result of described rate-matched the data of transmitting described Resource Block from described time of reception.
20. equipment that subscriber equipment is disturbed inhibition in heterogeneous network, wherein said heterogeneous network comprises macro base station and low power nodes, described subscriber equipment is served by described low power nodes, to described user device transmissions data, described equipment comprises described low power nodes by predetermined Resource Block:
Dispensing device is arranged to described low power nodes and sends measurement report;
The rate-matched final controlling element is arranged in response to the notice about the execution rate-matched from described low power nodes, carries out rate-matched for the described Resource Block that comprises the Resource Unit that suspends the transmission of data; And
Data sink is arranged to according to described rate-matched execution result and is received in the data of transmitting in described Resource Block.
21. equipment according to claim 20, wherein said measurement report comprises at least: the identification information that produces the neighbor cell that disturbs for described subscriber equipment.
22. equipment according to claim 20, wherein said rate-matched final controlling element comprises:
Be used for determining described subscriber equipment is produced the device of the neighbor cell that disturbs;
Device for the cell reference signals that obtains described neighbor cell; And
Be used for the Resource Unit corresponding with described cell reference signals is defined as the device that described Resource Block suspends the Resource Unit of the transmission of data.
23. equipment according to claim 20, wherein said rate-matched final controlling element comprises:
Be used for determining described subscriber equipment is produced the device of the neighbor cell that disturbs;
Be used for the device that interference strength that described neighbor cell is produced described subscriber equipment and predetermined threshold compare;
Be used for interference strength is defined as greater than the neighbor cell of predetermined threshold the device of interfered cell;
Device for the cell reference signals that obtains described interfered cell; And
Be used for the Resource Unit corresponding with described cell reference signals is defined as the device that described Resource Block suspends the Resource Unit of the transmission of data.
24. equipment according to claim 20, wherein said notice about the execution rate-matched is the rate-matched signaling that receives in the Physical Downlink Control Channel e-PDCCH of physical down link sharing channel PDSCH, physical downlink control channel PDCCH or enhancing.
25. equipment according to claim 24, wherein said rate-matched signaling comprises the information about time of reception, and wherein said data sink comprises:
Be used for beginning from described time of reception the device that execution result according to described rate-matched is received in the data that described Resource Block transmits.
26. equipment according to claim 20, wherein said data sink comprises:
Be used for the device according to the Resource Unit of the time-out the transmission of data of the described Resource Block of described rate-matched execution result identification; And
Be used for to receive the device of the data that the Resource Unit outside the Resource Unit of described time-out the transmission of data by described Resource Block transmits.
27. equipment according to claim 20, wherein said low power nodes is femto base station.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110348978.3A CN103096374B (en) | 2011-11-07 | 2011-11-07 | Subscriber equipment is carried out to the method and apparatus of AF panel in heterogeneous network |
| TW101139242A TW201328390A (en) | 2011-11-07 | 2012-10-24 | Methods and apparatuses for interference suppression for user equipment in heterogeneous network |
| PCT/IB2012/002420 WO2013068832A1 (en) | 2011-11-07 | 2012-10-30 | Methods and apparatuses for interference suppression for user equipment in heterogeneous network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110348978.3A CN103096374B (en) | 2011-11-07 | 2011-11-07 | Subscriber equipment is carried out to the method and apparatus of AF panel in heterogeneous network |
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| Publication Number | Publication Date |
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| CN103096374A true CN103096374A (en) | 2013-05-08 |
| CN103096374B CN103096374B (en) | 2016-03-23 |
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| CN201110348978.3A Active CN103096374B (en) | 2011-11-07 | 2011-11-07 | Subscriber equipment is carried out to the method and apparatus of AF panel in heterogeneous network |
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| Country | Link |
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| CN (1) | CN103096374B (en) |
| TW (1) | TW201328390A (en) |
| WO (1) | WO2013068832A1 (en) |
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| CN104427588A (en) * | 2013-09-02 | 2015-03-18 | 中国联合网络通信集团有限公司 | Access processing method and device and communication system |
| CN104995945A (en) * | 2014-01-03 | 2015-10-21 | 华为技术有限公司 | Transmission control method, node device, and user equipment |
| CN105075318A (en) * | 2013-07-02 | 2015-11-18 | 华为技术有限公司 | Method and device for avoiding heterogeneous system interference in frequency spectrum reuse scheme |
| CN107005332A (en) * | 2014-12-18 | 2017-08-01 | 三星电子株式会社 | The method and apparatus that the interference in the downlink transmission using the cellular communication system of orthogonal frequency division multiplexing method is eliminated using network |
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| CN107005332A (en) * | 2014-12-18 | 2017-08-01 | 三星电子株式会社 | The method and apparatus that the interference in the downlink transmission using the cellular communication system of orthogonal frequency division multiplexing method is eliminated using network |
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| CN107945475A (en) * | 2017-11-01 | 2018-04-20 | 安徽康迈德电力保护设备有限公司 | Control 2.4G signals penetrate the device and method of corona layer outside super-pressure |
| WO2024020810A1 (en) * | 2022-07-26 | 2024-02-01 | 北京小米移动软件有限公司 | Measurement result reporting method and apparatus, measurement result receiving method and apparatus, communication apparatus, and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013068832A1 (en) | 2013-05-16 |
| TW201328390A (en) | 2013-07-01 |
| CN103096374B (en) | 2016-03-23 |
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