CN102573084A - Interference processing method for control channel and devices - Google Patents
Interference processing method for control channel and devices Download PDFInfo
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- CN102573084A CN102573084A CN2010106201504A CN201010620150A CN102573084A CN 102573084 A CN102573084 A CN 102573084A CN 2010106201504 A CN2010106201504 A CN 2010106201504A CN 201010620150 A CN201010620150 A CN 201010620150A CN 102573084 A CN102573084 A CN 102573084A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/27—Control channels or signalling for resource management between access points
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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
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Abstract
The embodiment of the invention provides an interference processing method for a control channel and devices, relating to the technical field of communications and invented for effectively reducing interference from a control channel of an interfering cell with channel transmission of an interfered cell. The method comprises the following steps: a control channel interference processing message is generated by a first base station and the control channel interference processing message is used for indicating a control channel of the first base station to transmit used physical resources; the control channel interference processing message is sent to a second base station by the first base station and the second base station performs interference processing on the control channel of the first base station according to the control channel interference processing message. The method and the devices are applicable to wireless communication system.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method and apparatus that control channel is disturbed processing.
Background technology
In a wireless communication system, user equipment (UE) (UserEquipment) emission data and control information are given in the base station on down link, and on up link, receive data and the control information of UE.Similarly, UE to base station transmits data and control information, and receives the data and the control information of base station on down link on up link.
Along with the development and the development of technology of industry, various types of wireless communication systems all is devoted to the elevator system performance, to satisfy ever-increasing performance requirement.With LTE (Long Term Evolution; Long TermEvolution)/LTE-A (advanced Long Term Evolution; Long Term Evolution Advanced) wireless communication system is an example; For the elevator system performance; Can be through the macro base station lower powered base station of (Macro eNodeB) coverage deployed or the emission/receiving node (being designated hereinafter simply as low power base station) in homogeneous network (homogeneous network), cover to strengthen hot spot region in the macro base station coverage, indoor blind spot covers, the cell edge of macro base station covers, and promote the up/downstream spectrum utilance etc. of sub-district average throughput, cell edge throughput, sub-district.
In order to improve the spectrum utilization efficiency of system as much as possible, low power base station and macro base station carry out spectrum reuse wholly or in part.Like this, can produce between low power base station and the macro base station, can influence the reliability of system with frequency or co-channel interference, the particularly interference between control channel.
Summary of the invention
The embodiment of the invention provides a kind of control channel has been disturbed the method and apparatus of processing, can effectively reduce control channel on the interfered cell to by the interference of interfered cell Channel Transmission.
On the one hand, embodiments of the invention provide a kind of control channel have been disturbed the method for processing, comprising:
First base station generates control channel and disturbs process information, and said control channel disturbs process information to be used to indicate the control channel of said first base station to transmit employed physical resource;
Said first base station is sent said control channel to second base station and is disturbed process information, so that process information is disturbed according to said control channel in said second base station, the control channel of said first base station is disturbed processing.
On the one hand, embodiments of the invention provide a kind of control channel have been disturbed the method for processing, comprising:
Second base station receives the control channel that sends first base station and disturbs process information, and said control channel disturbs process information to be used to indicate the control channel of said first base station to transmit employed physical resource;
Process information is disturbed according to said control channel in said second base station, and the control channel of said first base station is disturbed processing.
On the one hand, embodiments of the invention provide a kind of control channel have been disturbed the method for processing, comprising:
The control channel that subscriber equipment receives first base station generation of sending second base station disturbs process information, and said control channel disturbs process information to be used to indicate the control channel of said first base station to transmit employed physical resource;
Said subscriber equipment disturbs process information that the control channel of said first base station is suppressed the interference of said subscriber equipment according to said control channel or eliminates.
On the one hand, embodiments of the invention provide a kind of base station, comprising:
Generation unit is used to generate control channel and disturbs process information, and said control channel disturbs process information to be used to indicate the control channel of said base station to transmit employed physical resource;
Transmitting element is used for sending said control channel to other base station and disturbs process information, so that process information is disturbed according to said control channel in said other base station, the control channel of said base station is disturbed processing.
On the one hand, embodiments of the invention provide a kind of base station, comprising:
Receiving element is used to receive the control channel that sends other base station and disturbs process information, and said control channel disturbs process information to be used to indicate the control channel of said other base station to transmit employed physical resource;
Processing unit is used for disturbing process information according to said control channel, and the control channel of said other base station is disturbed processing.
On the one hand, embodiments of the invention provide a kind of subscriber equipment, comprising:
Receiving element, the control channel that is used to receive first base station generation of sending second base station disturbs process information, and said control channel disturbs process information to be used to indicate the control channel of said first base station to transmit employed physical resource;
Processing unit is used for disturbing process information that the control channel of said first base station is suppressed the interference of said subscriber equipment or eliminating according to said control channel.
Through what the embodiment of the invention provided control channel is disturbed the method and apparatus of processing; First base station disturbs process information to send to second base station control channel, makes second base station can know that the shared physical resource of control channel transmission of first base station effectively disturbs processing with the control channel to first base station.Can effectively reduce the interference of interference base station, improve the reliability of interfered base station Channel Transmission for the interfered base station Channel Transmission.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 disturbs a kind of flow chart of the method for processing for what the embodiment of the invention provided to control channel;
Fig. 2 disturbs the another kind of flow chart of the method for processing for what the embodiment of the invention provided to control channel;
Fig. 3 disturbs the another kind of flow chart of the method for processing for what the embodiment of the invention provided to control channel;
Fig. 4 disturbs the another kind of flow chart of the method for processing for what the embodiment of the invention provided to control channel;
Fig. 5 disturbs the another kind of flow chart of the method for processing for what the embodiment of the invention provided to control channel;
Fig. 6 disturbs the another kind of flow chart of the method for processing for what the embodiment of the invention provided to control channel;
A kind of structured flowchart of the base station that Fig. 7 provides for the embodiment of the invention;
The another kind of structured flowchart of the base station that Fig. 8 provides for the embodiment of the invention;
A kind of structured flowchart of the subscriber equipment that Fig. 9 provides for the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention will be carried out clear, intactly description.
Should be clear and definite, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making all other embodiment that obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Be convenient explanation, the embodiment of the invention is that example is set forth with the LTE-A wireless communication system, but the invention is not restricted to this, and the embodiment of the invention is equally applicable to other wireless communication system.
It is pointed out that the notion of base station is equal to the sub-district in this article.For narrating conveniently; In the embodiment of the invention; Describe to produce between first base station and second base station to disturb, wherein, first base station and second base station can be that the base station of same type also can be dissimilar base station; First base station can be macro base station or low power base station, and second base station also can be macro base station or low power base station.It is understandable that this interference between first base station and second base station is mutual, that is to say that in particular moment, first base station can be by the interfered base station of second base station interference, also can be second base station is produced the interference base station that disturbs.
As shown in Figure 1, the embodiment of the invention provides a kind ofly disturbs the method for processing to control channel, based on first base station, comprising:
Concrete, said second base station can disturb process information confirm that the control channel of said first base station transmits employed physical resource according to said control channel, and the control channel of said first base station is disturbed processing.
Corresponding with method shown in Figure 1, as shown in Figure 2, the embodiment of the invention provides a kind ofly disturbs the method for processing to control channel, based on second base station, comprising:
Step 201, second base station receive the control channel that sends first base station and disturb process information, and said control channel disturbs process information to be used to indicate the control channel of first base station to transmit employed physical resource;
Step 202, process information is disturbed according to said control channel in second base station, and the control channel of said first base station is disturbed processing.
Concrete, said second base station can disturb process information confirm that the control channel of said first base station transmits employed physical resource according to said control channel, and the control channel of said first base station is disturbed processing.
Wherein, second base station disturbs processing to comprise to the control channel of said first base station:
When first base station was the interference base station that second base station produce is disturbed, second base station will be according to the interference that said control channel disturbs process information to suppress or the control channel that eliminate said first base station produces the Channel Transmission of second base station;
When first base station is by the interfered base station of second base station interference, second base station suppresses self or eliminates to the interference of the control channel of said first base station.
Corresponding with method illustrated in figures 1 and 2, as shown in Figure 3, the embodiment of the invention provides a kind ofly disturbs the method for processing to control channel, concrete based on the UE of second base station services, and the UE that second base station is served during as interfered base station comprises:
Step 301, the control channel that UE receives first base station generation of sending second base station disturbs process information, and said control channel disturbs process information to be used to indicate the control channel of said first base station to transmit employed physical resource;
Concrete, the interference to said subscriber equipment suppresses or eliminates and can comprise said subscriber equipment to the control channel of said first base station:
Disturb process information to confirm the shared physical resource of control channel transmission of said first base station according to said control channel;
The control channel that abandons shared physical resource of said subscriber equipment control channel and said first base station transmits the part or all of signal that lap carried of shared physical resource.
What the embodiment of the invention provided disturbs the method for processing to control channel; First base station sends to second base station through control channel being disturbed process information, makes second base station can know that the shared physical resource of control channel transmission of first base station effectively disturbs processing with the control channel to first base station.When second base station be first base station disturb interfered base station the time, can effectively reduce of the interference of the control channel of first base station to the Channel Transmission of second base station, effectively improve the reliability of second BTS channel transmission.And when first base station be second base station disturb interfered base station the time, can effectively guarantee the reliability of the control channel transmission of first base station, and then effectively improve the reliability of the Channel Transmission of first base station.In a word, what the embodiment of the invention provided disturbs the method for processing to control channel, can effectively reduce the interference of the control channel of interference base station for the interfered base station Channel Transmission, improves the reliability of interfered base station Channel Transmission.
Optional; What control channel disturbed the process information indication is that the control channel of first base station transmits employed physical resource in the specific time interval; That is to say; Control channel disturbs process information effective in the official hour interval, and this specific time interval need be total to knowledge by first base station and second base station.
Disturb the method for processing to be elaborated to the present invention to control channel through concrete embodiment below.
As shown in Figure 4, present embodiment disturbs control channel in the method for processing, and first base station is that second base station is produced the interference base station that disturbs, and second base station is an interfered base station, and present embodiment comprises:
Step 401, interference base station (first base station) generates control channel and disturbs process information.
Optional; Interference base station (first base station) can obtain the various relevant parameters of the shared physical resource of its control channel transmission of indication; And according to these relevant parameters generation control channels interference process informations; So that interfered base station (second base station) is known the shared physical resource of control channel transmission of interference base station, for example, the control channel of interference base station is transmitted in physical resource shared in the specific time interval.
Wherein, Said control channel disturbs process information or to combine by one of following indication parameter; Comprise: the automatic repeat requests indicating channel of physical mixed (PHICH; PhysicalHybrid-ARQ Indicator Channel) resource distribution indication, Physical Control Format Indicator Channel (PCFICH; Physical Control Format Indicator Channel) carries content indication, Physical Downlink Control Channel (PDCCH; Physical Downlink Control Channel) number indication, control channel element (CCE, Control Channel Element) resource use indication, resource element group resource to use the index indication of indication, the indication of PDCCH size, the position indication of confirming the PDCCH of size, bandwidth indication, control channel place subframe, parameter (nB) indication of confirming paging number of times in paging frame and the paging frame and the indication of subframe deviant.
For example, the indication of PDCCH number is used to indicate the PDCCH number of the interior interference base station transmission of each Transmission Time Interval (for example subframe).If in specific Transmission Time Interval, the PDCCH number of interference base station transmission is confirmed, and is known altogether that for interference base station and interfered base station then control channel disturbs the number indication that need not comprise PDCCH in the process information.
Again for example, when control channel disturbed PDCCH in the process information just to be used to dispatch paging and/or system message, above-mentioned PDCCH can only be mapped in the common search space, and the size of above-mentioned PDCCH can only be made up of 4 or 8 CCE.When the size of PDCCH was 4 CCE, PDCCH had only 4 position candidate in the common search space; When the size of PDCCH was 8 CCE, PDCCH had only 2 position candidate in the common search space.Therefore, the size that can indicate PDCCH with 1 bit is with 2 positions (or position candidate of PDCCH) of bits indication PDCCH under the size of confirming.Further; If be used to dispatch the size of the PDCCH of paging and/or system message; And/or the position is (the fixing PDCCH size of fixing; And/or the position needs interference base station and interfered base station to know altogether), then control channel disturbs the size indication that need not comprise PDCCH in the process information, and/or confirms the PDCCH position indication of size.
Again for example, in FDD (frequency division multiplexing, Frequency Division Duplexing) system, paging only possibly dispatched on 0,4,5,9 subframes; In TDD (time division multiplexing, TimeDivision Duplexing) system, paging only possibly dispatched on 0,1,5,6 subframes; Can only on 5 work song frames, dispatch in SIB-1 (System information block Class1, System Information Block Typel) information; If disturb process information in the update cycle at a control channel; Interference base station all is constant in all actual size and positions of sending out the subframe of pagings and/or sending out the PDCCH that is used to dispatch paging and/or SIB-1 in the subframe of SIB-1 information; And for the UE of interference base station, interfered base station, interfered base station service knows altogether, then above-mentioned control channel disturbs the index indication that need not comprise control channel place subframe in the process information.Otherwise above-mentioned control channel disturbs the index indication that need comprise the related subframe of control channel institute in the process information, is used to indicate control channel interference process information to be associated with that subframe.
Concrete, the control channel that table one and table two show adoptable two kinds of forms in the embodiment of the invention disturbs the process information example, and table one and table two also show corresponding shared bit number and the implication of field of each indication parameter.Wherein, OFDM (Orthogonal FrequencyDivision Multiplexing) is an OFDM.
Table one: control channel disturbs process information
Annotate 1: source base station is meant that transmitting control channel disturbs first base station of process information in the table one
Annotate 2: target BS is meant and receives second base station that control channel disturbs process information in the table one
Shown in table one, control channel disturbs process information to comprise: PHICH resource distribution indication, PCFICH carry content indication, the indication of PDCCH number, the indication of PDCCH size, the position indication of confirming the PDCCH of size, bandwidth indication (for example system bandwidth indication), the index indication of control channel place subframe, nB indication, the indication of subframe deviant.
Disturb in the process information at the control channel shown in the table one; The order of the field that each indication parameter is shared is not limit; Corresponding to the difference employed physical resource situation of control channel constantly; Each control channel that generates disturbs in the process information, can include only in the above-mentioned indication parameter one or more, and the corresponding field of other indication parameter is empty or be specific character.
Table two: control channel disturbs process information
Annotate 1: source base station is meant that transmitting control channel disturbs first base station of process information in the table two
Annotate 2: target BS is meant and receives second base station that control channel disturbs process information in the table two
The indication of PDCCH number, PDCCH size are indicated and are confirmed that the position indication of big or small PDCCH can characterize through CCE resource use indication or resource element group resource use indication; Therefore; Control channel disturbs the form of process information and the implication of each field also can shown in table two, to comprise: control channel disturbs process information to comprise that PHICH resource distribution indication, PCFICH carry the content indication, the CCE resource uses indication or resource element group resource to use indication, bandwidth indication, the index indication of control channel place subframe, nB indication, the indication of subframe deviant.
Disturb process information similar with the control channel shown in the table one; Disturb in the process information at the control channel shown in the table two; Each indicates the order of shared field not limit, and corresponding to the employed physical resource situation of the control channel in the moment of living in, each control channel that generates disturbs in the process information; Can include only in the above-mentioned indication one or more, and the corresponding field of other indication be empty or be specific character.
Step 402: interference base station is perhaps eated dishes without rice or wine through X2 interface, and perhaps S 1 interface disturbs process information to send to interfered base station control channel.
Step 403: the control channel interference process information that interfered base station will be known sends to the UE that oneself serves.
Concrete, interfered base station is through RRC (Radio Resource control, Radio ResourceControl) broadcast signaling, or the proprietary signaling of RRC, or physical layer signaling passes to the own UE that serves, and also alternate manner can be arranged certainly, and the present invention does not do qualification to this.
Need to prove; If interfered base station and interference base station are synchronizing sub-frame; And when there is skew in the subframe index of interfered base station and interference base station; Need comprise the corresponding subframe deviant indication of deviant of the subframe index of interfered base station and interference base station in the control channel interfere information, to inform the UE of interfered base station service, what the subframe that makes its control channel that can confirm interference base station disturb process information to be associated was corresponding is which subframe of interfered base station.
Step 404: the UE of interfered base station service disturbs process information that the control channel of said first base station is suppressed the interference of said subscriber equipment according to said control channel or eliminates.
Concrete, UE can disturb process information to confirm the shared physical resource of control channel transmission of interference base station according to said control channel; The signal that lap carried of the physical resource that physical resource that said UE control channel is shared and the transmission of the control channel of said interference base station are shared carries out some or all of abandoning.Be discarded as example in decode procedure, to carry out part or all of signal, the control channel that the UE of interfered base station service generates according to the interference base station of being known disturbs process information to confirm the shared physical resource of control channel transmission of interference base station.In a Transmission Time Interval; When the shared physical resource of control channel of the shared physical resource of the control channel transmission of the interference base station of confirming as UE and this UE of scheduling had resource overlapping, the UE bit soft information of carrying on the resource that can when decoding, all overlap was set to zero; Perhaps UE can be set to zero according to the bit information that certain criterion is carried on decoding the time partly overlaps resource; For example the interfering energy on the overlapping resource that can be confirmed by the transmitting power of the control channel of interference base station transmission of certain criterion or the high or low indication of power are confirmed, promptly UE can be when decoding only interfering energy or power are designated as the bit soft information of carrying on the high overlapping resource and are set to zero.
It is high power base stations such as macro base station that present embodiment disturbs the method for processing to be specially adapted to interference base station to control channel, and interfered base station is the scene of low power base station.Usually in the coverage of a macro base station, can dispose a plurality of low power base station, because the transmitting power of macro base station is bigger, the control channel of macro base station can cause interference to the signal transmission of a plurality of low power base station.Usually; Disturb like this scene be a bit (macro base station) to the interference of multiple spot (a plurality of low power base station); That adopts present embodiment disturbs the method for processing to control channel; Macro base station can generate control channel and disturb process information, and transmitting control channel disturbance process information is given a plurality of low power base station.Like this, macro base station is identical to the control channel interference process information of the different low power base station transmission in the own coverage, disturbs process information fairly simple thereby make macro base station generate control channel, also makes things convenient for and carries out interference coordination between the base station.
As shown in Figure 5, present embodiment disturbs control channel in the method for processing, the interfered base station of first base station for being disturbed by second base station, and second base station is an interference base station, present embodiment comprises:
Know that in order to make interference base station (second base station) control channel of interfered base station is transmitted in physical resource shared in the specific time interval; Interfered base station will obtain the various relevant parameters of the shared physical resource of its control channel transmission of indication, and generate control channel interference process information according to these relevant parameters.Concrete, the form of control channel interference process information and the implication of each field specifically see also the description of last embodiment shown in table one or table two, repeat no more here.
In this step, interference base station has known that control channel disturbs process information, has just known the employed physical resource of the control channel of interfered base station in specific Transmission Time Interval; Therefore; When interference base station carries out the mapping of control channel resource in this Transmission Time Interval; Just can avoid fully or part is avoided the already used physical resource of interfered base station control channel, thereby reduce channel disturbance, improve the reliability of interfered base station Channel Transmission interfered base station.Be concrete, this step comprises:
Interference base station disturbs process information according to said control channel, knows that the control channel of said interfered base station transmits employed physical resource;
Interference base station carries out the mapping of control channel resource, and the control channel that said interfered base station was avoided or partly avoided in said control channel resource mapping fully transmits employed physical resource.Illustrate, avoiding fully here can be meant that the control channel of the shared physical resource of the control channel transmission of interference base station and interfered base station transmits shared physical resource and do not have overlapping; Part is avoided being meant when control channel resource that control channel heavy load or other scenes when interference base station causes interference base station is shone upon the control channel that can not avoid interfered base station fully and transmitted employed physical resource; It is overlapping according to a certain percentage to make the control channel of the shared physical resource of the control channel transmission of interference base station and interfered base station transmit shared physical resource; The ratio here can be 10%, 20% or other; Do not do qualification at this, and wherein the physical resource of lap can adopt low power transmissions; Also can adopt high power transmission, also not do qualification here.
Need to prove; In this step; If interfered base station and interference base station are synchronizing sub-frame; And when there is skew in the subframe index of interfered base station and interference base station; Interference base station is disturbing the deviant that also need consider the subframe index of interfered base station and interference base station when handling, so that interference base station suppresses the control channel transmission of own sub-district or when evading, the transmission of interference base station control channel is suppressed or to evade the subframe that is associated corresponding with the interfered base station subframe that control channel interference process information is associated.
It is low power base station that present embodiment disturbs the method for processing to be specially adapted to interference base station to control channel, and interfered base station is the scene of high power base station (like macro base station).When low power base station being the Home eNodeB of closed loop user group (CSG:Close subscriber group) type; Though the UE of macro base station be in Home eNodeB near; But not by the Home eNodeB mandate, this UE can not be by the Home eNodeB service as if this UE.And the UE of this macro base station service this moment will be come from the interference of contiguous Home eNodeB.Consider in the coverage of a macro base station and can dispose a plurality of Home eNodeB, the interference scene of this moment is the interference of multiple spot (a plurality of Home eNodeB) to a bit (macro base station).Therefore macro base station can generate control channel and disturb process information, and said control channel disturbs process information to indicate macro base station to want the control resource of protecting, and transmitting control channel disturbance process information is given Home eNodeB.Like this; Macro base station is identical to the control channel interference process information of the different Home eNodeB transmission in the own coverage; Thereby making macro base station generate control channel disturbs process information fairly simple; Also make things convenient for and carry out interference coordination between Home eNodeB and macro base station, promptly identical control channel resource is evaded in the different home base station.
Under some scene; As working as interference signal is the specific reference signal in sub-district (CRS:Cell-specific reference signal); And/or the reference signal of channel condition information (CSI-RS:Channel state information reference signal), and/or location reference signals (PRS:Positioning reference signal), and/or during the reference signal of other type; Because the generation in each Transmission Time Interval internal reference signals is relevant with subframe index; So UE when interference signal being disturbed processing, need know the subframe deviant of interfered base station and interference base station, thereby confirm the index of interference signal place subframe; And then the content of definite interference signal, interference signal is disturbed processing.
Given this, embodiments of the invention also disclose and a kind of interference signal have been disturbed the method for processing, based on first base station, comprising:
First base station generates subframe skew indication information;
Said subframe skew indication information is sent to second base station in first base station, so that said second base station is disturbed processing to said first base station to the interference signal of said second base station according to said subframe skew indication information.
Optional, said first base station is through X2 interface or eat dishes without rice or wine or the S1 interface sends said subframe skew indication information to said second base station.
Wherein, said interference signal comprises the reference signal of cell specific reference signal and/or channel condition information and/or the reference signal of location reference signals and/or other types.
Wherein, said subframe skew indication information is used to indicate the deviant of the subframe index of said first base station and said second base station.
Disturb the method for processing corresponding with aforementioned to interference signal, embodiments of the invention also disclose and a kind of interference signal have been disturbed the method for processing, based on second base station, comprising:
Second base station receives the subframe skew indication information that sends first base station, and said subframe skew indication information is used to indicate the deviant of the subframe index of said first base station and said second base station;
Optional, said second base station can also through the indication of upper level network node obtain said first base station and said second base station subframe skew indication information;
Said second base station is disturbed processing according to said subframe skew indication information to the interference signal of said first base station.
Optional, said second base station disturbs processing to comprise according to said subframe skew indication information to the interference signal of said first base station:
Said second base station sends to the subscriber equipment of said second base station services with said subframe skew indication information, so that said subscriber equipment is confirmed the content of interference signal according to said subframe skew indication information, interference signal is disturbed processing.
Optional, said second base station comprises the subscriber equipment that said subframe skew indication information sends to said second base station services:
Said second base station sends to said subframe skew indication information through RRC broadcast signaling or the proprietary signaling of RRC or physical layer signaling the subscriber equipment of said second base station services.
Disturb the method for processing to be elaborated to the embodiment of the invention to interference signal through concrete embodiment below; Present embodiment disturbs in the method for processing to interference signal; First base station is that second base station is produced the interference base station that disturbs, and second base station is an interfered base station, and the synchronizing sub-frame of interfered base station and interference base station; As shown in Figure 6, present embodiment comprises:
Step 601, interference base station (first base station) generate subframe skew indication information, and said subframe deviant indication information has been indicated the deviant of the subframe index of interfered base station (second base station) and interference base station.
Step 602, interference base station are perhaps eated dishes without rice or wine through X2 interface, and perhaps the S1 interface sends to interfered base station with the subframe indication information that squints.
Step 603, the subframe skew indication information that interfered base station will be known sends to the UE that oneself serves.
Concrete, interfered base station is through the RRC broadcast signaling, or the proprietary signaling of RRC; Or physical layer signaling with subframe squint indication information pass to oneself the service UE; Certainly also alternate manner can be arranged, the present invention does not do qualification to this, so that this UE can be according to subframe deviant indication information; Confirm the index of the content (or information) or the interference signal place subframe of interference signal, and then interference signal is disturbed processing.
Step 604, the UE of interfered base station service disturbs processing according to said subframe deviant indication information, with to interference base station interference signal suppress or eliminate.
Corresponding with preceding method, the embodiment of the invention also provides a kind of base station, can be used as described first base station of preamble, and is as shown in Figure 7, comprising:
Transmitting element 11 is used for sending said control channel to other base station and disturbs process information, so that process information is disturbed according to said control channel in other base station, the control channel of said base station is disturbed processing.
The base station that the embodiment of the invention provides; Can disturb process information to inform through control channel the employed physical resource of its control channel to other base station; When this base station produces interference to other base station; Process information can be disturbed according to said control channel in other base station, and the interference of this base stations control channel is suppressed or eliminates, effectively improves the reliability that other BTS channel transmits; And when this base station received the interference of other base station, process information can be disturbed according to said control channel in other base station, and elimination or inhibition effectively improve the reliability of the Channel Transmission of this base station to the interference of the control channel of this base station.
Wherein, Concrete; Said control channel disturbs process information to be used to indicate the control channel of the base station of present embodiment to transmit employed physical resource, and can comprise one of following indication parameter or combination: PHICH resource distribution indication, PCFICH carry the content indication, the CCE resource uses indication, resource element group resource to use indication, the indication of PDCCH number, the indication of PDCCH size, the position indication of confirming the PDCCH of size, bandwidth indication, the index indication of control channel place subframe, nB indication, the indication of subframe deviant.
Wherein, transmitting element 11 specifically is used for perhaps eating dishes without rice or wine through X2 interface, and perhaps S 1 interface is to other base station interference process information that transmits control channel.
Corresponding with preceding method, the embodiment of the invention also provides a kind of base station, can be used as described second base station of preamble, and is as shown in Figure 8, comprising:
Receiving element 20 is used to receive the control channel that sends other base station and disturbs process information, and said control channel disturbs process information to be used to indicate the control channel of said other base station to transmit employed physical resource;
Processing unit 21 is used for disturbing process information according to said control channel, and the control channel of said other base station is disturbed processing.
The base station that the embodiment of the invention provides; Can disturb process information to know the employed physical resource of other base stations control Channel Transmission through the control channel of other base station; When this base station produces interference to other base station; Process information can be disturbed according to said control channel in this base station, suppress or eliminate to other base stations control Channel Transmission produce interference, effectively improve the reliability of other BTS channels transmission; And when this base station received the interference of other base station, process information can be disturbed according to said control channel in this base station, eliminated or suppressed the interference of the control channel of other base station to this BTS channel transmission, effectively improved the reliability of the Channel Transmission of this base station.
The base station that the embodiment of the invention provides; Can disturb process information to know the employed physical resource of other base stations control channel through the control channel of other base station; When this base station produces interference to other base station; Process information can be disturbed according to said control channel in this base station, and other base stations control channel is suppressed its interference or eliminates, effectively improves the reliability that this BTS channel transmits; And when this base station received the interference of other base station, process information can be disturbed according to said control channel in this base station, and elimination or inhibition effectively improve the reliability of the Channel Transmission of other base station to the interference of the control channel of other base station.
Wherein, Concrete; Said control channel disturbs process information to be used to indicate the control channel of the base station of present embodiment to transmit employed physical resource, and can comprise one of following indication parameter or combination: PHICH resource distribution indication, PCFICH carry the content indication, the CCE resource uses indication, resource element group resource to use indication, the indication of PDCCH number, the indication of PDCCH size, the position indication of confirming the PDCCH of size, bandwidth indication, the index indication of control channel place subframe, nB indication, the indication of subframe deviant.
Wherein, In one embodiment of the invention; Processing unit 21 specifically is used for disturbing process information to send to the subscriber equipment of said base station said control channel; For example disturb process information to pass to the subscriber equipment of present embodiment base station services said control channel, so that said subscriber equipment disturbs process information that the control channel of said first base station is suppressed the interference of said subscriber equipment according to said control channel or eliminates through RRC broadcast signaling, the proprietary signaling of RRC or physical layer signaling.
In another embodiment of the present invention; Processing unit 21 specifically is used for disturbing process information according to said control channel; The control channel of knowing said other base station transmits employed physical resource; Carry out the mapping of control channel resource, and the control channel that makes said control channel resource mapping avoid or partly avoid said other base station fully transmits employed physical resource.
Corresponding with preceding method, the embodiment of the invention also provides a kind of UE, and is as shown in Figure 9, comprising:
Receiving element 30, the control channel that is used to receive first base station generation of sending second base station disturbs process information, and said control channel disturbs process information to be used to indicate the control channel of said first base station to transmit employed physical resource;
Processing unit 31 is used for disturbing process information that the control channel of said first base station is suppressed the interference of said subscriber equipment or eliminating according to said control channel.
The UE that the embodiment of the invention provides; Can disturb process information to know the employed physical resource of the first base stations control channel through the control channel of first base station; And the first base stations control channel suppressed its interference or eliminate, effectively improve the reliability of Channel Transmission.
Wherein, Concrete; Said control channel disturbs process information to be used to indicate the control channel of the base station of present embodiment to transmit employed physical resource, and can comprise one of following indication parameter or combination: PHICH resource distribution indication, PCFICH carry the content indication, the CCE resource uses indication, resource element group resource to use indication, the indication of PDCCH number, the indication of PDCCH size, the position indication of confirming the PDCCH of size, bandwidth indication, the index indication of control channel place subframe, nB indication, the indication of subframe deviant.
In one embodiment of the invention; Processing unit 31 specifically is used for disturbing process information to confirm the shared physical resource of control channel transmission of said first base station according to said control channel, and the control channel that abandons shared physical resource of said subscriber equipment control channel and said first base station transmits the part or all of signal that lap carried of shared physical resource.
Optional; In the foregoing description; Physical area identity code and/or the indication of cell specific reference signal port possibly also need be used in the UE or second base station when interference signal being disturbed processing; These two parameters can be through X2 or S1 or eat dishes without rice or wine to send to second base station by first base station; The UE to second base station services can be notified through RRC broadcast signaling or the proprietary signaling of RRC or physical layer signaling in second base station, and these two parameters also can be that other means well known to those skilled in the art obtain certainly.
One of ordinary skill in the art will appreciate that: all or part of flow process that realizes said method embodiment can be accomplished through the relevant hardware of computer program instructions; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of said claim.
Claims (18)
1. one kind is disturbed the method for processing to control channel, it is characterized in that, comprising:
First base station generates control channel and disturbs process information, and said control channel disturbs process information to be used to indicate the control channel of said first base station to transmit employed physical resource;
Said first base station is sent said control channel to second base station and is disturbed process information, so that process information is disturbed according to said control channel in said second base station, the control channel of said first base station is disturbed processing.
2. method according to claim 1 is characterized in that, said control channel disturbs process information to comprise one of following indication parameter or combination:
The automatic repeat requests indicating channel resource configuration of physical mixed indication; Physical Control Format Indicator Channel carries the content indication; The indication of Physical Downlink Control Channel number; The control channel element resource uses indication; Resource element group resource is used indication; The indication of Physical Downlink Control Channel size; Confirm the position indication of the Physical Downlink Control Channel of size; The bandwidth indication; The index indication of control channel place subframe; Confirm the parameter indication and the indication of subframe deviant of paging number of times in paging frame and the paging frame.
3. method according to claim 1 and 2 is characterized in that, said first base station is sent said control channel to second base station and disturbed process information to comprise:
Said first base station is through X2 interface or eat dishes without rice or wine or the S1 interface sends said control channel to said second base station and disturbs process information.
4. one kind is disturbed the method for processing to control channel, it is characterized in that, comprising:
Second base station receives the control channel that sends first base station and disturbs process information, and said control channel disturbs process information to be used to indicate the control channel of said first base station to transmit employed physical resource;
Process information is disturbed according to said control channel in said second base station, and the control channel of said first base station is disturbed processing.
5. method according to claim 4; It is characterized in that said control channel disturbs process information to comprise one of following indication parameter or combination: the automatic repeat requests indicating channel resource configuration of physical mixed indication, the indication of Physical Control Format Indicator Channel carrying content, the indication of Physical Downlink Control Channel number, control channel element resource use the index indication of indication, resource element group resource use indication, the indication of Physical Downlink Control Channel size, the position indication of confirming big or small Physical Downlink Control Channel, bandwidth indication, control channel place subframe, the parameter indication of confirming paging frame and the interior paging number of times of paging frame and the indication of subframe deviant.
6. according to claim 4 or 5 described methods, it is characterized in that process information is disturbed according to said control channel in said second base station, the control channel of said first base station disturbed to handle comprise:
Said second base station disturbs process information to send to the subscriber equipment of said second base station services said control channel, so that said subscriber equipment disturbs process information that the control channel of said first base station is suppressed the interference of said subscriber equipment according to said control channel or eliminates;
Perhaps
Process information is disturbed according to said control channel in said second base station, knows that the control channel of said first base station transmits employed physical resource;
The mapping of control channel resource is carried out in said second base station, and the control channel that said first base station was avoided or partly avoided in said control channel resource mapping fully transmits employed physical resource.
7. method according to claim 6 is characterized in that, said second base station comprises the subscriber equipment that said control channel disturbs process information to send to said second base station services:
Said second base station disturbs process information to send to the subscriber equipment of said second base station services said control channel through RRC broadcast signaling or the proprietary signaling of RRC or physical layer signaling.
8. one kind is disturbed the method for processing to control channel, it is characterized in that, comprising:
The control channel that subscriber equipment receives first base station generation of sending second base station disturbs process information, and said control channel disturbs process information to be used to indicate the control channel of said first base station to transmit employed physical resource;
Said subscriber equipment disturbs process information that the control channel of said first base station is suppressed the interference of said subscriber equipment according to said control channel or eliminates.
9. method according to claim 8 is characterized in that, said control channel disturbs process information to comprise one of following indication parameter or combination:
The automatic repeat requests indicating channel resource configuration of physical mixed indication; Physical Control Format Indicator Channel carries the content indication; The indication of Physical Downlink Control Channel number; The control channel element resource uses indication; Resource element group resource is used indication; The indication of Physical Downlink Control Channel size; Confirm the position indication of the Physical Downlink Control Channel of size; The bandwidth indication; The index indication of control channel place subframe; Confirm the parameter indication and the indication of subframe deviant of paging number of times in paging frame and the paging frame.
10. according to Claim 8 or 9 described methods, it is characterized in that,
Said subscriber equipment disturbs process information according to said control channel, and the interference to said subscriber equipment suppresses or eliminate to comprise to the control channel of said first base station:
Said subscriber equipment disturbs process information to confirm the shared physical resource of control channel transmission of said first base station according to said control channel;
The control channel that abandons shared physical resource of said subscriber equipment control channel and said first base station transmits the part or all of signal that lap carried of shared physical resource.
11. a base station is characterized in that, comprising:
Generation unit is used to generate control channel and disturbs process information, and said control channel disturbs process information to be used to indicate the control channel of said base station to transmit employed physical resource;
Transmitting element is used for sending said control channel to other base station and disturbs process information, so that process information is disturbed according to said control channel in said other base station, the control channel of said base station is disturbed processing.
12. base station according to claim 11 is characterized in that, said control channel disturbs process information to comprise one of following indication parameter or combination:
The automatic repeat requests indicating channel resource configuration of physical mixed indication; Physical Control Format Indicator Channel carries the content indication; The indication of Physical Downlink Control Channel number; The control channel element resource uses indication; Resource element group resource is used indication; The indication of Physical Downlink Control Channel size; Confirm the position indication of the Physical Downlink Control Channel of size; The bandwidth indication; The index indication of control channel place subframe; Confirm the parameter indication and the indication of subframe deviant of paging number of times in paging frame and the paging frame.
13. a base station is characterized in that, comprising:
Receiving element is used to receive the control channel that sends other base station and disturbs process information, and said control channel disturbs process information to be used to indicate the control channel of said other base station to transmit employed physical resource;
Processing unit is used for disturbing process information according to said control channel, and the control channel of said other base station is disturbed processing.
14. base station according to claim 13, said control channel disturb process information to comprise one of following indication parameter or combination:
The automatic repeat requests indicating channel resource configuration of physical mixed indication; Physical Control Format Indicator Channel carries the content indication; The indication of Physical Downlink Control Channel number; The control channel element resource uses indication; Resource element group resource is used indication; The indication of Physical Downlink Control Channel size; Confirm the position indication of the Physical Downlink Control Channel of size; The bandwidth indication; The index indication of control channel place subframe; Confirm the parameter indication and the indication of subframe deviant of paging number of times in paging frame and the paging frame.
15., it is characterized in that said processing unit specifically is used for according to claim 13 or 14 described base stations:
Disturb process information to send to the subscriber equipment of said base station services said control channel, so that said subscriber equipment disturbs process information that the control channel of said other base station is suppressed the interference of said subscriber equipment according to said control channel or eliminates;
Perhaps,
Disturb process information according to said control channel, know that the control channel of said other base station transmits employed physical resource;
Carry out the mapping of control channel resource, and the control channel that makes said control channel resource mapping avoid or partly avoid said other base station fully transmits employed physical resource.
16. a subscriber equipment is characterized in that, comprising:
Receiving element, the control channel that is used to receive first base station generation of sending second base station disturbs process information, and said control channel disturbs process information to be used to indicate the control channel of said first base station to transmit employed physical resource;
Processing unit is used for disturbing process information that the control channel of said first base station is suppressed the interference of said subscriber equipment or eliminating according to said control channel.
17. subscriber equipment according to claim 16 is characterized in that, said control channel disturbs process information to comprise one of following indication parameter or combination:
The automatic repeat requests indicating channel resource configuration of physical mixed indication; Physical Control Format Indicator Channel carries the content indication; The indication of Physical Downlink Control Channel number; The control channel element resource uses indication; Resource element group resource is used indication; The indication of Physical Downlink Control Channel size; Confirm the position indication of the Physical Downlink Control Channel of size; The bandwidth indication; The index indication of control channel place subframe; Confirm the parameter indication and the indication of subframe deviant of paging number of times in paging frame and the paging frame.
18., it is characterized in that said processing unit specifically is used for disturbing process information to confirm the shared physical resource of control channel transmission of said first base station according to said control channel according to claim 16 or 17 described subscriber equipmenies;
The control channel that abandons shared physical resource of said subscriber equipment control channel and said first base station transmits the part or all of signal that lap carried of shared physical resource.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010620150.4A CN102573084B (en) | 2010-12-31 | 2010-12-31 | Interference processing method for control channel and devices |
| PCT/CN2012/070321 WO2012089171A1 (en) | 2010-12-31 | 2012-01-13 | Method and device for processing interference on control channel |
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| CN201010620150.4A CN102573084B (en) | 2010-12-31 | 2010-12-31 | Interference processing method for control channel and devices |
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Also Published As
| Publication number | Publication date |
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| WO2012089171A1 (en) | 2012-07-05 |
| CN102573084B (en) | 2017-02-01 |
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