CN103096374B - Subscriber equipment is carried out to the method and apparatus of AF panel in heterogeneous network - Google Patents
Subscriber equipment is carried out to the method and apparatus of AF panel in heterogeneous network Download PDFInfo
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- CN103096374B CN103096374B CN201110348978.3A CN201110348978A CN103096374B CN 103096374 B CN103096374 B CN 103096374B CN 201110348978 A CN201110348978 A CN 201110348978A CN 103096374 B CN103096374 B CN 103096374B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
Embodiments of the present invention provide a kind of method of subscriber equipment being carried out to AF panel in heterogeneous network, wherein this heterogeneous network comprises macro base station and low power nodes, subscriber equipment is served by low power nodes, low power nodes by predetermined Resource Block to 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 transmission data in Resource Block; And notifying user equipment performs rate-matched, so that subscriber equipment receives the data transmitted by Resource Block according to rate-matched execution result.
Description
Technical field
The present invention relates to the communications field, particularly subscriber equipment is carried out to the method and apparatus of AF panel in heterogeneous network.
Background technology
Heterogeneous network (HetNet) is the technology of a kind of elevator system throughput and overall network efficiency.In heterogeneous network, low power nodes (LowPowerNode, LPN) is placed in macro base station coverage area by cloth, forms the heterogeneous system with the different node types covered.Low power nodes is such as slight (Pico) base station, family (Femto/Home) base station, micro-(Micro) base station, long distance wireless head (RemoteRadioHead, RRH) and repeater (Relay) etc.Heterogeneous network scene common is at present indoor Home eNodeB, outdoor focus and indoor focus etc. such as.
In heterogeneous network, very part and parcel is exactly each internodal interference problem with covering.In heterogeneous network, 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 more weak and/or suffer the interference of other cell signal because of signal, and cause signal quality poor.
At LTERelease10 (also i.e. LTE-Advanced, be called for short LTE-A) in, discuss the inter-cell interference cancellation technology (eICIC) for heterogeneous network, and by the accurate blank subframe (almostblanksubframe of wherein power reduction and movable minimizing, ABS) be applied to macrocell, suppress or alleviate the impact of macrocell on the low power nodes community of such as picocell and so on.
But in order to keep the backwards compatibility with subscriber equipment, the cell reference signals (CRS) of macrocell 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 (transfer of data such as on physical down link sharing channel (PDSCH)) of picocell always.
In the discussion of 3GPPRAN1, propose the scheme of being carried out AF panel by Pico community time-out transmission data (Txmuting) in conjunction with subscriber equipment rate-matched.But in order to realize this scheme, Pico community and subscriber equipment thereof need to know in the Resource Block (RB) for transmitting data, suspend transmission data due to the CRS interference of macrocell Resource Unit (RE).In addition, Pico subscriber equipment also needs to know when be suitable for starting to carry out transmitting the corresponding rate-matched of data with time-out.These problems above-mentioned all need research further and solve.
Therefore, this area needs a kind of can realization to carry out the scheme of AF panel by time-out transmission data being combined with subscriber equipment rate-matched.
Summary of the invention
For above problem, the invention provides a kind of method and apparatus subscriber equipment being carried out to AF panel in heterogeneous network, method and apparatus implementation procedure of the present invention is simple, use signaling is less, can realize suspending transmission data and subscriber equipment rate-matched simply, efficiently, easily, thus complete the AF panel of the subscriber equipment to low power nodes.
According to a first aspect of the invention, provide a kind of method of subscriber equipment being carried out to AF panel in heterogeneous network, wherein this heterogeneous network comprises macro base station and low power nodes, subscriber equipment is served by low power nodes, low power nodes by predetermined Resource Block to 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 transmission data in Resource Block; And notifying user equipment performs rate-matched, so that subscriber equipment receives the data transmitted by Resource Block according to rate-matched execution result.
According to a second aspect of the invention, provide a kind of method of subscriber equipment being carried out to AF panel in heterogeneous network, wherein this heterogeneous network comprises macro base station and low power nodes, subscriber equipment is served by low power nodes, low power nodes by predetermined Resource Block to user device transmissions data.The method can comprise the following steps: send measurement report to low power nodes; In response to the notice about execution rate-matched from low power nodes, for comprising the Resource Block of the Resource Unit suspending transmission data to perform rate-matched; And the data transmitted in Resource Block are received according to rate-matched execution result.
According to a third aspect of the invention we, provide a kind of equipment subscriber equipment being carried out to AF panel in heterogeneous network, wherein this heterogeneous network comprises macro base station and low power nodes, subscriber equipment is served by low power nodes, low power nodes by predetermined Resource Block to user device transmissions data.This equipment can comprise: measurement report receiving system, is arranged to the measurement report received from subscriber equipment; Determining device, is arranged to based on measurement report, determines the Resource Unit of the time-out transmission data in Resource Block; And notifying device, be arranged to notifying user equipment and perform rate-matched, so that subscriber equipment receives the data transmitted by Resource Block according to rate-matched execution result.
According to a forth aspect of the invention, provide a kind of equipment subscriber equipment being carried out to AF panel in heterogeneous network, wherein this heterogeneous network comprises macro base station and low power nodes, subscriber equipment is served by low power nodes, low power nodes by predetermined Resource Block to user device transmissions data.This equipment can comprise: dispensing device, is arranged to and sends measurement report to low power nodes; Rate-matched final controlling element, is arranged in response to the notice about execution rate-matched from low power nodes, for comprising the Resource Block of the Resource Unit suspending transmission data to perform rate-matched; And data sink, be arranged to and be received according to rate-matched execution result the data transmitted in Resource Block.
By the description of the following 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.
Accompanying drawing explanation
By below in conjunction with the description of the drawings, and understand more comprehensively along with to of the present invention, other objects of the present invention and effect will become clearly and easy to understand, wherein:
Fig. 1 is the schematic diagram being applicable to heterogeneous network according to an embodiment of the invention;
Fig. 2 is flow chart subscriber equipment being carried out to the method for AF panel in heterogeneous network according to an embodiment of the invention;
Fig. 3 is flow chart subscriber equipment being carried out to the method for AF panel in heterogeneous network according to another embodiment of the invention;
Fig. 4 is flow chart subscriber equipment being carried out to the method for AF panel in heterogeneous network according to an embodiment of the invention;
Fig. 5 is flow chart subscriber equipment being carried out to the method for AF panel in heterogeneous network according to another embodiment of the invention;
Fig. 6 is block diagram subscriber equipment being carried out to the equipment of AF panel in heterogeneous network according to an embodiment of the invention; And
Fig. 7 is block diagram subscriber equipment being carried out to the equipment of AF panel in heterogeneous network according to another embodiment of the invention.
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 be explained in more detail and illustrate.Should be appreciated that drawings and Examples of the present invention only for exemplary effect, not for limiting the scope of the invention.
Flow chart in accompanying drawing and block diagram, illustrate according to the architectural framework in the cards of the system of the various execution mode of the present invention, method and apparatus, function and operation.In this, each square frame in flow chart or block diagram can represent a part for module, program segment or a code, and a part for described module, program segment or code comprises one or more executable instruction for realizing the logic function specified.Also it should be noted that at some as in alternative realization, the function marked in square frame also can be different from occurring in sequence of marking in accompanying drawing.Such as, in fact the square frame that two adjoining lands represent can perform substantially concurrently, and they also can perform by contrary order sometimes, and this determines according to involved function.Also it should be noted that, the combination of the square frame in each square frame in block diagram and/or flow chart and block diagram and/or flow chart, can realize by the special hardware based system of the function put rules into practice or operation, or can realize with the combination of specialized hardware and computer instruction.Should be appreciated that drawings and Examples of the present invention only for exemplary effect, not for limiting the scope of the invention.Below in conjunction with accompanying drawing the present invention be explained in more detail and illustrate.
In the present invention, subscriber equipment (UE) can be various types of terminal, such as mobile phone, personal digital assistant (PDA), portable computer or have other any suitable terminal of mobile communication function.Base station can be such as Node B, eNodeB (eNB), access point (AP), radio access station (RAS), etc.Macro base station can be such as grand (Macro) eNodeB/eNB, and it such as can produce macrocell (MacroCell).Low power nodes can be such as femto base station (PicoeNodeB/eNB), Home eNodeB (FemtoeNodeB/eNB), micro-base station (MicroeNodeB/eNB), long distance wireless head (RRH) and repeater, etc.These low power nodes such as can produce picocell (PicoCell), home base station cells (FemtoCell), Microcell (MicroCell), etc.
It should be noted, although the present invention mainly employs the example of PicoeNB as low power nodes, this is only exemplary, and other suitable low power nodes any can be used completely to realize technical scheme of the present invention.
Fig. 1 is the schematic diagram being applicable to heterogeneous network according to an embodiment of the invention.
Communication environment shown in Fig. 1 schematically shows a heterogeneous network.This heterogeneous network schematically comprises macro base station (such as, MacroeNB) 110, femto base station (such as PicoeNB) and subscriber equipment (UE) 130.The coverage of macro base station 110 schematically illustrates with " macrocell (Macrocell) ", and the coverage of femto base station schematically illustrates with " picocell (Picocell) ".
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, picocell 120 by predetermined Resource Block to described user device transmissions data.Wherein, subscriber equipment 130 can be switched to picocell from macrocell, is carrying out the interference of the cell reference signals that may be subject to macrocell in the process communicated with picocell 120.
For convenience of description, the present invention is based on LTE/LTE-A system to be described.Those skilled in the art are appreciated that said system is only schematic completely, instead of circumscribed.
Fig. 2 is flow chart subscriber equipment being carried out to the method 200 of AF panel in heterogeneous network according to an embodiment of the invention.Heterogeneous network can be such as 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, low power nodes by predetermined Resource Block to user device transmissions data.Method 200 shown in Fig. 2 such as can be performed by low power nodes (such as femto base station).
In step S201, receive the measurement report from subscriber equipment.
According to embodiments of the invention, the measurement report from subscriber equipment at least comprises: the identification information this subscriber equipment being produced to the neighbor cell of interference.
According to one embodiment of present invention, measurement report can comprise: the Physical Cell Identifier (PCID), community group identification (CGI), Reference Signal Received Power (RSRP), the Reference Signal Received Quality (RSRQ) that this subscriber equipment are produced to the neighbor cell of interference, etc.
In step S202, based on measurement report, determine the Resource Unit of the time-out transmission data in Resource Block.
According to embodiments of the invention, can determine based on measurement report the Resource Unit suspending transmission data in several ways.
In one embodiment, can determine based on measurement report neighbor cell subscriber equipment being produced to interference; Obtain the cell reference signals of neighbor cell; And the Resource Unit corresponding with cell reference signals is defined as the Resource Unit suspending transmission data.
In another embodiment, can determine based on measurement report neighbor cell subscriber equipment being produced to interference; The interference strength produced subscriber equipment neighbor cell and predetermined threshold compare; Neighbor cell interference strength being greater than predetermined threshold is defined as interfered cell; Obtain the cell reference signals of interfered cell; And the Resource Unit corresponding with cell reference signals is defined as the Resource Unit suspending transmission data.
In step S203, notifying user equipment performs rate-matched, so that subscriber equipment receives the data transmitted by Resource Block according to rate-matched execution result.
According to embodiments of the invention, can physical down link sharing channel (PDSCH), Physical Downlink Control Channel (PDCCH) or strengthen Physical Downlink Control Channel (e-PDCCH) in subscriber equipment transmission rate matching signal, thus notifying user equipment perform rate-matched.After subscriber equipment receives rate-matched signaling, then know that femto base station notifies oneself will start to carry out rate-matched, to receive the data transmitted by Resource Block according to rate-matched execution result.
In one embodiment, wireless heterogeneous networks (RRC) signaling transmitted on PDSCH can be utilized to realize rate-matched signaling.In another embodiment, a new signaling transmitted on PDCCH or e-PDCCH can be defined as rate-matched signaling.E-PDCCH can take the part resource of PDSCH.
According to embodiments of the invention, rate-matched signaling not only can notifying user equipment start to perform rate-matched, can further include the information about time of reception, this information equipment for indicating user is received in the data transmitted in Resource Block from this time of reception according to the execution result of rate-matched.
Fig. 3 is flow chart subscriber equipment being carried out to the method 300 of AF panel in heterogeneous network according to another embodiment of the invention.Heterogeneous network can be such as 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, low power nodes by predetermined Resource Block to user device transmissions data.Method 300 shown in Fig. 3 such as can be performed by low power nodes (such as PicoeNB).
In step S301, receive the measurement report from subscriber equipment.
This step and step S201 similar.Measurement report at least comprises the identification information of the neighbor cell this subscriber equipment being produced to interference.According to one embodiment of present invention, measurement report can comprise: neighbor cell PCID, CGI, RSRP, RSRQ etc. of this subscriber equipment being produced to interference.
In addition, be understandable that, above-mentioned citing is only illustrative and not restrictive, and measurement report can also comprise those skilled in the art and commonly use or other available suitable parameter.
In step S302, based on measurement report, determine neighbor cell subscriber equipment being produced to interference.
In the present embodiment, suppose that the measurement report received in step S301 comprises the identification information of the macrocell shown in Fig. 1, this shows that this macrocell creates interference to subscriber equipment.Then in step S301, comprised PCID and/or CGI etc. can be read from this measurement report, determine concrete community subscriber equipment being produced to interference.
In step S303, obtain the cell reference signals of neighbor cell.
After determining the neighbor cell to subscriber equipment generation interference, the cell reference signals of neighbor cell can be obtained, i.e. CRS.In an embodiment of the present invention, the process obtaining CRS can comprise time-frequency location corresponding to acquisition CRS and sequence thereof.The mode obtaining CRS has multiple, and those skilled in the art can complete the acquisition of CRS by known existing mode, and is not limited to certain specific mode.
In step S304, the Resource Unit corresponding with cell reference signals is defined as the Resource Unit suspending transmission data.
According to embodiments of the invention, a Resource Block can comprise multiple Resource Unit, and Resource Unit can as the least unit in Resource Block.After obtaining CRS, can to determine in Resource Block which or which Resource Unit is corresponding with CRS.Such as, can will be used for transmitting one or more Resource Units of CRS as the Resource Unit corresponding with this CRS.Then, corresponding with CRS Resource Unit just can as the Resource Unit suspending transmission data.Follow-up in the data transmission procedure of its subscriber equipment at femto base station, do not transmit data in the Resource Unit of time-out in Resource Block transmission data, and transmit data in the Resource Unit except suspending the Resource Unit transmitting data in Resource Block.
In other embodiments in accordance with the invention, can also improve the process of the Resource Unit of the determination time-out transmission data shown in step S302-S304.Such as, in one embodiment, after determining based on measurement report and producing the neighbor cell of interference to subscriber equipment, the interference strength that neighbor cell can be produced subscriber equipment and predetermined threshold compare.Wherein, this interference strength can obtain according to from the information (such as, RSRP and/or RSRQ) in the measurement report of subscriber equipment, and predetermined threshold can be that those skilled in the art rule of thumb specify or preset according to other criterion.Then, the neighbor cell that interference strength can be greater than predetermined threshold is defined as interfered cell, the neighbor cell of interference user equipment is equivalent to carry out refinement like this, only just subsequent processing steps is carried out to the large interfered cell to a certain extent of the interference of subscriber equipment for those, namely obtain the cell reference signals of these interfered cells and the Resource Unit corresponding with this cell reference signals be defined as suspend the Resource Unit transmitting data.
In step S305, to subscriber equipment transmission rate matching signal in PDSCH.
In the present embodiment, the RRC signaling transmitted on PDSCH can be utilized to realize rate-matched signaling.In one embodiment of the invention, RRC signaling can be defined as boolean (BOOLEAN) type signal.When RRC signaling is " TRUE ", rate-matched can be carried out for the Resource Block next arrived by equipment for indicating user; When RRC signaling is " FALSE ", rate-matched can need not be carried out for the Resource Block next arrived by equipment for indicating user.
According to another embodiment of the invention, a new signaling transmitted on PDCCH or e-PDCCH can be defined as rate-matched signaling.Because the renewal of control channel is very fast, be specially adapted to by this way work as the situation that subscriber equipment carries out fast speed movement.Comparatively speaking, RRC signaling goes for the situation that subscriber equipment carries out relatively slow speed movement.
In addition, be understandable that, except the signaling of definition new on the RRC signaling on above-mentioned PDSCH or PDCCH or e-PDCCH, those skilled in the art can utilize other suitable signaling any well known in the art to carry out notifying user equipment to start to carry out rate-matched.
In the present embodiment, owing to adopting RRC signaling as rate-matched signaling, so subscriber equipment such as the 1st subframe (referred to as " next subframe ") acquiescently after it receives the subframe of rate-matched signaling can receive the data of Resource Block transmission according to rate-matched result.
According to another embodiment of the invention, when adopting PDCCH or ePDCCH transmission rate matching signal, the subframe (referred to as " present sub-frame ") that subscriber equipment such as can receive rate-matched signaling at it is acquiescently carried out rate-matched and is received the data of Resource Block transmission according to rate-matched result.
According to embodiments of the invention, rate-matched signaling not only can notifying user equipment start to perform rate-matched, can further include the information about time of reception, this information equipment for indicating user is received in the data transmitted in Resource Block from this time of reception according to the execution result of rate-matched.In one embodiment, RRC signaling can be defined as the bit also comprising information one or more instruction time except comprising above-mentioned boolean's offset, be used for representing the information about time of reception.Such as, RRC signaling can comprise a temporal information bit, when the value of this bit is " 0 ", shows the data receiving Resource Block transmission to subscriber equipment instruction at present sub-frame; When the value of this bit is " 1 ", show the data receiving Resource Block transmission to subscriber equipment instruction in next subframe; By that analogy.
It should be understood that in an embodiment according to the present invention, the information about time of reception can be implemented as any suitable form, and is not limited to above-mentioned exemplary example.
Fig. 4 is flow chart subscriber equipment being carried out to the method 400 of AF panel in heterogeneous network according to an embodiment of the invention.Heterogeneous network can be such as 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, low power nodes by predetermined Resource Block to user device transmissions data.The subscriber equipment that method 400 shown in Fig. 4 such as can be served by low power nodes (such as femto base station) performs.
In step S401, send measurement report to low power nodes.
According to embodiments of the invention, measurement report at least comprises: the identification information this subscriber equipment being produced to the neighbor cell of interference.
According to one embodiment of present invention, measurement report can comprise: the Physical Cell Identifier (PCID), community group identification (CGI), Reference Signal Received Power (RSRP), the Reference Signal Received Quality (RSRQ) that this subscriber equipment are produced to the neighbor cell of interference, etc.
In step S402, in response to the notice about execution rate-matched from low power nodes, for comprising the Resource Block of the Resource Unit suspending transmission data to perform rate-matched.
According to embodiments of the invention, step S402 can be realized in several ways.In one embodiment, first can determine neighbor cell subscriber equipment being produced to interference, obtain the cell reference signals of neighbor cell, then the Resource Unit corresponding with cell reference signals is defined as the Resource Unit suspending transmission data in Resource Block.In another embodiment, first neighbor cell subscriber equipment being produced to interference can be determined, the interference strength produced subscriber equipment neighbor cell and predetermined threshold compare, neighbor cell interference strength being greater than predetermined threshold is defined as interfered cell, obtain the cell reference signals of interfered cell, then the Resource Unit corresponding with cell reference signals is defined as the Resource Unit suspending transmission data in Resource Block.
According to embodiments of the invention, the notice about execution rate-matched can be the rate-matched signaling received in PDSCH, PDCCH or e-PDCCH.In one embodiment, rate-matched signaling can be implemented as the RRC signaling transmitted on PDSCH.In another embodiment, rate-matched signaling can be the signaling of a newly definition on PDCCH or e-PDCCH.
According to embodiments of the invention, rate-matched signaling may further include the information about time of reception, and this information equipment for indicating user is received in the data transmitted in Resource Block from this time of reception according to the execution result of rate-matched
In step S403, be received in the data transmitted in Resource Block according to rate-matched execution result.
According to embodiments of the invention, according to the information about time of reception in rate-matched signaling, from time of reception, the data transmitted in Resource Block can be received according to the execution result of rate-matched.
According to embodiments of the invention, according to the Resource Unit of the time-out transmission data in rate-matched execution result recognition resource block, and the data transmitted by the Resource Unit outside the Resource Unit suspending transmission data in Resource Block can be received.
Fig. 5 is flow chart subscriber equipment being carried out to the method 500 of AF panel in heterogeneous network according to another embodiment of the invention.Heterogeneous network can be such as 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, low power nodes by predetermined Resource Block to user device transmissions data.The subscriber equipment that method 500 shown in Fig. 5 such as can be served by low power nodes (such as PicoeNB) performs.
In step S501, send measurement report to low power nodes.
This step and step S401 similar.Measurement report at least comprises the identification information of the neighbor cell this subscriber equipment being produced to interference.According to one embodiment of present invention, measurement report can comprise: neighbor cell PCID, CGI, RSRP, RSRQ etc. of this subscriber equipment being produced to interference.
In an embodiment according to the present invention, measurement report can obtain according to multiple technologies means well known in the art and send at subscriber equipment place.
In step S502, receive the rate-matched signaling in PDSCH.
In the present embodiment, rate-matched signaling utilizes the RRC signaling transmitted on PDSCH to realize.Therefore, the RRC signaling in PDSCH is received in step S502.In one embodiment of the invention, RRC signaling can be defined as boolean (BOOLEAN) type signal.When the RRC signaling received is for " TRUE ", subscriber equipment can carry out rate-matched for the Resource Block next arrived; When RRC signaling is " FALSE ", subscriber equipment then can not carry out rate-matched.
According to another embodiment of the invention, rate-matched signaling can be defined as the new signaling transmitted on PDCCH or e-PDCCH.Because the renewal of control channel is very fast, be specially adapted to the situation that subscriber equipment carries out fast speed movement by this way.Comparatively speaking, RRC signaling goes for the situation that subscriber equipment carries out relatively slow speed movement.
In step S503, determine neighbor cell subscriber equipment being produced to interference.
According to embodiments of the invention, subscriber equipment can the signal instruction of periodic measurement neighbor cell and/or signal strength signal intensity, thus can determine which neighbor cell produces interference to oneself.Those skilled in the art can utilize multiple technologies means well known in the art to carry out this deterministic process.
In step S504, obtain the cell reference signals of neighbor cell.
After determining the neighbor cell to subscriber equipment generation interference, the cell reference signals of neighbor cell can be obtained, i.e. CRS.In an embodiment of the present invention, the process obtaining CRS can comprise time-frequency location corresponding to acquisition CRS and sequence thereof.The mode obtaining CRS has multiple, and those skilled in the art can complete the acquisition of CRS by known existing mode, and is not limited to certain specific mode.
In step S505, the Resource Unit corresponding with cell reference signals is defined as the Resource Unit suspending transmission data in Resource Block.
According to embodiments of the invention, after obtaining CRS, can to determine in Resource Block which or which Resource Unit is corresponding with CRS.Such as, can will be used for transmitting one or more Resource Units of CRS as the Resource Unit corresponding with this CRS.Then, corresponding with CRS Resource Unit just can as the Resource Unit suspending transmission data.
In other embodiments in accordance with the invention, can also improve the process of the Resource Unit of the determination time-out transmission data shown in step S503-S505.Such as, in one embodiment, after determining and producing the neighbor cell of interference to subscriber equipment, the interference strength that neighbor cell can be produced subscriber equipment and predetermined threshold compare.Wherein, this interference strength such as can be obtained from the intensity of the CRS of neighbor cell and/or quality by measuring by subscriber equipment, and predetermined threshold can be that those skilled in the art rule of thumb specify or preset according to other criterion.Then, the neighbor cell that interference strength can be greater than predetermined threshold is defined as interfered cell, the neighbor cell of interference user equipment is equivalent to carry out refinement like this, only just subsequent processing steps is carried out to the large interfered cell to a certain extent of the interference of subscriber equipment for those, namely obtain the cell reference signals of these interfered cells and the Resource Unit corresponding with this cell reference signals be defined as suspend the Resource Unit transmitting data.
In step S506, receive the data transmitted by the Resource Unit outside the Resource Unit suspending transmission data in Resource Block.
In the present embodiment, owing to adopting RRC signaling as rate-matched signaling, so subscriber equipment such as can receive the data of Resource Block transmission in next subframe according to rate-matched result acquiescently.
According to another embodiment of the invention, when adopting PDCCH or ePDCCH transmission rate matching signal, subscriber equipment such as can receive the data of Resource Block transmission at present sub-frame according to rate-matched result acquiescently.
According to embodiments of the invention, rate-matched signaling not only can notifying user equipment start to perform rate-matched, can further include the information about time of reception, this information equipment for indicating user is received in the data transmitted in Resource Block from this time of reception according to the execution result of rate-matched.According to the information about time of reception in rate-matched signaling, from time of reception, the data transmitted in Resource Block can be received according to the execution result of rate-matched.Such as, when RRC signaling is as rate-matched signaling, may further include a temporal information bit, when the value that subscriber equipment detects this bit is for " 0 ", then receiving in the subframe identical with wherein receiving rate-matched signaling the data that Resource Block transmits; When the value of this bit being detected for " 1 ", then the 1st subframe after receiving the subframe of rate-matched signaling wherein receives the data of Resource Block transmission.
Fig. 6 is block diagram subscriber equipment being carried out to the equipment 600 of AF panel in heterogeneous network according to an embodiment of the invention.Heterogeneous network can be such as 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, low power nodes by predetermined Resource Block to user device transmissions data.Equipment 600 shown in Fig. 6 can realize in the low power nodes of such as femto base station and so in heterogeneous network, or can those skilled in the art can other any suitable equipment in realize.Equipment 600 can perform the method 200 shown in Fig. 2 and the method shown in Fig. 3 300.
According to embodiments of the invention, equipment 600 can comprise: measurement report receiving system 610, is arranged to the measurement report received from subscriber equipment; Determining device 620, is arranged to based on measurement report, determines the Resource Unit of the time-out transmission data in Resource Block; And notifying device 630, be arranged to notifying user equipment and perform rate-matched, so that subscriber equipment receives the data transmitted by Resource Block according to rate-matched execution result.
According to embodiments of the invention, measurement report at least can comprise: identification information subscriber equipment being produced to the neighbor cell of interference.
According to embodiments of the invention, determining device 620 can comprise: for based on measurement report, determine the device of neighbor cell subscriber equipment being produced to interference; For obtaining the device of the cell reference signals of neighbor cell; And for the Resource Unit corresponding with cell reference signals being defined as the device of the Resource Unit suspending transmission data.
According to embodiments of the invention, determining device 620 can comprise: for based on measurement report, determine the device of neighbor cell subscriber equipment being produced to interference; For the device that the interference strength that produced subscriber equipment neighbor cell and predetermined threshold compare; Neighbor cell for interference strength being greater than predetermined threshold is defined as the device of interfered cell; For obtaining the device of the cell reference signals of interfered cell; And for the Resource Unit corresponding with cell reference signals being defined as the device of the Resource Unit suspending transmission data.
According to embodiments of the invention, notifying device 630 can comprise: for the device to subscriber equipment transmission rate matching signal in 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, rate-matched signaling can comprise the information about time of reception, is used to indicate subscriber equipment from time of reception, is received in the data transmitted in Resource Block according to the execution result of rate-matched.
Fig. 7 is block diagram subscriber equipment being carried out to the equipment 700 of AF panel in heterogeneous network according to another embodiment of the invention.Heterogeneous network can be such as 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, low power nodes by predetermined Resource Block to user device transmissions data.Equipment 700 shown in Fig. 7 can realize in the low power nodes of such as femto base station and so in the heterogeneous network subscriber equipment of serving, or can those skilled in the art can other any suitable equipment in realize.Equipment 700 can perform the method 400 shown in Fig. 4 and the method shown in Fig. 5 500.
According to embodiments of the invention, equipment 700 can comprise: dispensing device 710, is arranged to and sends measurement report to low power nodes; Rate-matched final controlling element 720, is arranged in response to the notice about execution rate-matched from low power nodes, for comprising the Resource Block of the Resource Unit suspending transmission data to perform rate-matched; And data sink 730, be arranged to and be received according to rate-matched execution result the data transmitted in Resource Block.
According to embodiments of the invention, measurement report at least can comprise: identification information subscriber equipment being produced to the neighbor cell of interference.
According to embodiments of the invention, rate-matched final controlling element 720 can comprise: for determining the device of neighbor cell subscriber equipment being produced to interference; For obtaining the device of the cell reference signals of neighbor cell; And for the Resource Unit corresponding with cell reference signals being defined as the device of the Resource Unit suspending transmission data in Resource Block.
According to embodiments of the invention, rate-matched final controlling element 720 can comprise: for determining the device of neighbor cell subscriber equipment being produced to interference; For the device that the interference strength that produced subscriber equipment neighbor cell and predetermined threshold compare; Neighbor cell for interference strength being greater than predetermined threshold is defined as the device of interfered cell; For obtaining the device of the cell reference signals of interfered cell; And for the Resource Unit corresponding with cell reference signals being defined as the device of the Resource Unit suspending transmission data in Resource Block.
According to embodiments of the invention, can be wherein the rate-matched signaling received in the Physical Downlink Control Channel e-PDCCH of physical down link sharing channel PDSCH, physical downlink control channel PDCCH or enhancing about performing the notice of rate-matched.
According to embodiments of the invention, rate-matched signaling can comprise the information about time of reception, and wherein data sink 730 can comprise: the device being received in the data transmitted in Resource Block for the execution result according to rate-matched from time of reception.
According to embodiments of the invention, data sink 730 can comprise: for the device of the Resource Unit according to the time-out transmission data in rate-matched execution result recognition resource block; And for receiving the device of the data transmitted by the Resource Unit outside the Resource Unit suspending transmission data in Resource Block.
According to embodiments of the invention, wherein low power nodes is femto base station (such as PicoBS, PicoeNodeB/eNB).
According to of the present invention in heterogeneous network to subscriber equipment carry out the method and apparatus implementation procedure of AF panel simple, use signaling less, can realize suspending transmission data and subscriber equipment rate-matched simply, efficiently, easily, thus complete the AF panel of the subscriber equipment to low power nodes.
Method disclosed in 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 store in memory, and by suitable instruction execution system, such as microprocessor, personal computer (PC) or large-scale computer perform.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 be taked can from the form of the computer program that computer can be used or computer-readable medium is accessed, and these media provide program code use for computer or any instruction execution system or be combined with it.For the purpose of description, computer can with or computer-readable mechanism can be any tangible device, it can comprise, store, communicate, propagate or transmission procedure with by instruction execution system, device or equipment use or be combined with it.
Medium can be electric, magnetic, light, electromagnetism, ultrared or the system of semiconductor (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 current CD comprises compact disk-read-only memory (CD-ROM), compact disk-read/write (CD-R/W) and DVD.
The system being suitable for storage/or execution program code according to the embodiment of the present invention will comprise at least one processor, and it directly or by system bus is coupled to memory component indirectly.Local storage, mass storage that memory component utilizes the term of execution of can being included in program code actual and provide the interim storage of program code at least partially the cache memory of the number of times of code must be fetched the term of execution of minimizing from mass storage.
I/O or I/O equipment (including but not limited to keyboard, display, indication equipment etc.) directly or by middle I/O controller can be coupled to system.
Network adapter also can be coupled to system, can be coupled to other system or remote printer or memory device to make system by middle privately owned or public network.Modulator-demodulator, cable modem and Ethernet card are only several examples of current available types of network adapters.
It should be noted that to make embodiments of the present invention be easier to understand, it be known and for embodiments of the present invention realization for a person skilled in the art may be required some ins and outs more specifically that description above eliminates.
There is provided specification of the present invention to be to illustrate and describing, instead of be used for exhaustive or limit the invention to disclosed form.For those of ordinary skill in the art, many modifications and changes are all fine.
Therefore; selecting and describing execution mode is to explain principle of the present invention and practical application thereof better; and those of ordinary skill in the art are understood, under the prerequisite not departing from essence of the present invention, all modifications and change all fall within protection scope of the present invention defined by the claims.
Claims (27)
1. one kind is carried out the method for AF panel in heterogeneous network to subscriber equipment, wherein said heterogeneous network comprises macro base station and low power nodes, described subscriber equipment is served by described low power nodes, described low power nodes is by predetermined Resource Block to described user device transmissions data, and described method comprises:
Receive the measurement report from described subscriber equipment;
Based on described measurement report, determine the Resource Unit of the time-out transmission data in described Resource Block; And
Notify that described subscriber equipment performs rate-matched, so that described subscriber equipment receives the data transmitted by described Resource Block according to described rate-matched execution result.
2. method according to claim 1, wherein said measurement report at least comprises: the identification information described subscriber equipment being produced to the neighbor cell of interference.
3. method according to claim 1, wherein based on described measurement report, determine that the Resource Unit of the time-out transmission data in described Resource Block comprises:
Based on described measurement report, determine the neighbor cell described subscriber equipment being produced to interference;
Obtain the cell reference signals of described neighbor cell; And
The Resource Unit corresponding with described cell reference signals is defined as suspend the Resource Unit transmitting data.
4. method according to claim 1, wherein based on described measurement report, determine that the Resource Unit of the time-out transmission data in described Resource Block comprises:
Based on described measurement report, determine the neighbor cell described subscriber equipment being produced to interference;
The interference strength produced described subscriber equipment described neighbor cell and predetermined threshold compare;
Neighbor cell interference strength being greater than predetermined threshold is defined as interfered cell;
Obtain the cell reference signals of described interfered cell; And
The Resource Unit corresponding with described cell reference signals is defined as suspend the Resource Unit transmitting data.
5. method according to claim 1, wherein notifies that described subscriber equipment performs rate-matched and comprises:
To described subscriber equipment transmission rate matching signal in the Physical Downlink Control Channel e-PDCCH of physical down link sharing channel PDSCH, physical downlink control channel PDCCH or enhancing.
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 from described time of reception, is received in the data transmitted in described Resource Block according to the execution result of described rate-matched.
7. one kind is carried out the method for AF panel in heterogeneous network to subscriber equipment, wherein said heterogeneous network comprises macro base station and low power nodes, described subscriber equipment is served by described low power nodes, described low power nodes is by predetermined Resource Block to described user device transmissions data, and described method comprises:
Measurement report is sent to described low power nodes;
In response to the notice about execution rate-matched from described low power nodes, for comprising the described Resource Block of the Resource Unit suspending transmission data to perform rate-matched; And
The data transmitted in described Resource Block are received according to described rate-matched execution result.
8. method according to claim 7, wherein said measurement report at least comprises: the identification information described subscriber equipment being produced to the neighbor cell of interference.
9. method according to claim 7, wherein comprises to perform rate-matched for the described Resource Block comprising the Resource Unit suspending transmission data:
Determine the neighbor cell described subscriber equipment being produced to interference;
Obtain the cell reference signals of described neighbor cell; And
The Resource Unit corresponding with described cell reference signals is defined as in described Resource Block, suspend the Resource Unit transmitting data.
10. method according to claim 7, wherein comprises to perform rate-matched for the described Resource Block comprising the Resource Unit suspending transmission data:
Determine the neighbor cell described subscriber equipment being produced to interference;
The interference strength produced described subscriber equipment described neighbor cell and predetermined threshold compare;
Neighbor cell interference strength being greater than predetermined threshold is defined as interfered cell;
Obtain the cell reference signals of described interfered cell; And
The Resource Unit corresponding with described cell reference signals is defined as in described Resource Block, suspend the Resource Unit transmitting data.
11. methods according to claim 7, wherein said is the rate-matched signaling received in the Physical Downlink Control Channel e-PDCCH of physical down link sharing channel PDSCH, physical downlink control channel PDCCH or enhancing about performing the notice of rate-matched.
12. methods according to claim 11, wherein said rate-matched signaling comprises the information about time of reception, is wherein received according to described rate-matched execution result the data transmitted in described Resource Block and comprises:
Be received in the data transmitted in described Resource Block according to the execution result of described rate-matched from described time of reception.
13. methods according to claim 7, are wherein received according to described rate-matched execution result the data transmitted in described Resource Block and comprise:
The Resource Unit of the time-out transmission data in Resource Block according to the identification of described rate-matched execution result; And
Receive the data transmitted by the Resource Unit outside the described Resource Unit suspending transmission data in described Resource Block.
14. 1 kinds of equipment subscriber equipment being carried out to AF panel 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, described low power nodes is by predetermined Resource Block to described user device transmissions data, and described equipment comprises:
Measurement report receiving system, is arranged to the measurement report received from described subscriber equipment;
Determining device, is arranged to based on described measurement report, determines the Resource Unit of the time-out transmission data in described Resource Block; And
Notifying device, is arranged to and notifies that described subscriber equipment performs rate-matched, so that described subscriber equipment receives the data transmitted by described Resource Block according to described rate-matched execution result.
15. equipment according to claim 14, wherein said measurement report at least comprises: the identification information described subscriber equipment being produced to the neighbor cell of interference.
16. equipment according to claim 14, wherein said determining device comprises:
For based on described measurement report, determine the device of the neighbor cell described subscriber equipment being produced to interference;
For obtaining the device of the cell reference signals of described neighbor cell; And
For the Resource Unit corresponding with described cell reference signals being defined as the device suspending the Resource Unit transmitting data.
17. equipment according to claim 14, wherein said determining device comprises:
For based on described measurement report, determine the device of the neighbor cell described subscriber equipment being produced to interference;
For the device that the interference strength that produced described subscriber equipment described neighbor cell and predetermined threshold compare;
Neighbor cell for interference strength being greater than predetermined threshold is defined as the device of interfered cell;
For obtaining the device of the cell reference signals of described interfered cell; And
For the Resource Unit corresponding with described cell reference signals being defined as the device suspending the Resource Unit transmitting data.
18. equipment according to claim 14, wherein said notifying device comprises:
For the device to described subscriber equipment transmission rate matching signal in 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 from described time of reception, is received in the data transmitted in described Resource Block according to the execution result of described rate-matched.
20. 1 kinds of equipment subscriber equipment being carried out to AF panel 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, described low power nodes is by predetermined Resource Block to described user device transmissions data, and described equipment comprises:
Dispensing device, is arranged to and sends measurement report to described low power nodes;
Rate-matched final controlling element, is arranged in response to the notice about execution rate-matched from described low power nodes, for comprising the described Resource Block of the Resource Unit suspending transmission data to perform rate-matched; And
Data sink, is arranged to and is received according to described rate-matched execution result the data transmitted in described Resource Block.
21. equipment according to claim 20, wherein said measurement report at least comprises: the identification information described subscriber equipment being produced to the neighbor cell of interference.
22. equipment according to claim 20, wherein said rate-matched final controlling element comprises:
For determining the device of the neighbor cell described subscriber equipment being produced to interference;
For obtaining the device of the cell reference signals of described neighbor cell; And
For the Resource Unit corresponding with described cell reference signals is defined as the device suspending the Resource Unit transmitting data in described Resource Block.
23. equipment according to claim 20, wherein said rate-matched final controlling element comprises:
For determining the device of the neighbor cell described subscriber equipment being produced to interference;
For the device that the interference strength that produced described subscriber equipment described neighbor cell and predetermined threshold compare;
Neighbor cell for interference strength being greater than predetermined threshold is defined as the device of interfered cell;
For obtaining the device of the cell reference signals of described interfered cell; And
For the Resource Unit corresponding with described cell reference signals is defined as the device suspending the Resource Unit transmitting data in described Resource Block.
24. equipment according to claim 20, wherein said is the rate-matched signaling received in the Physical Downlink Control Channel e-PDCCH of physical down link sharing channel PDSCH, physical downlink control channel PDCCH or enhancing about performing the notice of rate-matched.
25. equipment according to claim 24, wherein said rate-matched signaling comprises the information about time of reception, and wherein said data sink comprises:
For being received in the device of the data transmitted in described Resource Block from described time of reception according to the execution result of described rate-matched.
26. equipment according to claim 20, wherein said data sink comprises:
For the device of the Resource Unit of the time-out transmission data in Resource Block according to the identification of described rate-matched execution result; And
For receiving the device of the data transmitted by the Resource Unit outside the described Resource Unit suspending transmission data in described Resource Block.
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 |
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| 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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| CN103096374A CN103096374A (en) | 2013-05-08 |
| CN103096374B true CN103096374B (en) | 2016-03-23 |
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| CN (1) | CN103096374B (en) |
| TW (1) | TW201328390A (en) |
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| KR102058878B1 (en) * | 2013-05-16 | 2019-12-26 | 삼성전자주식회사 | Method and apparatus for transmitting and receiving data in wireless communication system |
| WO2015000124A1 (en) * | 2013-07-02 | 2015-01-08 | 华为技术有限公司 | Method and device for avoiding heterogeneous system interference in frequency spectrum reuse scheme |
| CN104284377B (en) * | 2013-07-09 | 2018-06-26 | 上海诺基亚贝尔股份有限公司 | The method for improving switching command transmission and/or measurement report transmission in communication network |
| EP3032862B1 (en) | 2013-08-07 | 2019-02-27 | Huawei Technologies Co., Ltd. | Information sending and receiving method and device |
| CN104427588B (en) * | 2013-09-02 | 2018-02-23 | 中国联合网络通信集团有限公司 | Access processing method and device and communication system |
| CN104995945B (en) * | 2014-01-03 | 2019-09-03 | 华为技术有限公司 | Transfer control method, node device and user equipment |
| ES2862978T3 (en) | 2014-11-24 | 2021-10-08 | Nokia Solutions & Networks Oy | Improved communication efficiency |
| KR102381574B1 (en) * | 2014-12-18 | 2022-04-01 | 삼성전자 주식회사 | Apparatus and method for network-assisted interference cancellation at downlink using orthogonal frequency division multiplexing |
| RU2744164C1 (en) | 2017-09-07 | 2021-03-03 | Гуандун Оппо Мобайл Телекоммьюникейшнс Корп., Лтд. | Method, device and system for transmitting information |
| 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 |
| US20220345240A1 (en) * | 2021-04-21 | 2022-10-27 | Mediatek Inc. | Mechanism to cancel lte crs interference from neighboring cell in dss |
| 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 |
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| CN102026207A (en) * | 2010-12-13 | 2011-04-20 | 中兴通讯股份有限公司 | Inter-cell interference coordination method and device in heterogeneous network |
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| CN101631351A (en) * | 2008-07-14 | 2010-01-20 | 中兴通讯股份有限公司 | Measurement control method |
| US20100220670A1 (en) * | 2009-02-27 | 2010-09-02 | Koon Hoo Teo | Method for Scheduling to Reduce Inter-Cell Interference for Voice Communication in OFDMA |
| CN102823167B (en) * | 2010-03-24 | 2015-09-09 | Lg电子株式会社 | The method and apparatus of presence of intercell interference is reduced in radio communications system |
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| CN102026207A (en) * | 2010-12-13 | 2011-04-20 | 中兴通讯股份有限公司 | Inter-cell interference coordination method and device in heterogeneous network |
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| WO2013068832A1 (en) | 2013-05-16 |
| TW201328390A (en) | 2013-07-01 |
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