CN102404833B - The method and apparatus avoided is disturbed in a kind of heterogeneous system - Google Patents
The method and apparatus avoided is disturbed in a kind of heterogeneous system Download PDFInfo
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- CN102404833B CN102404833B CN201010285792.3A CN201010285792A CN102404833B CN 102404833 B CN102404833 B CN 102404833B CN 201010285792 A CN201010285792 A CN 201010285792A CN 102404833 B CN102404833 B CN 102404833B
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Abstract
The invention discloses the method and apparatus disturbing in a kind of heterogeneous system and avoid, the method comprises: obtain the subframe position set receiving and disturb and avoid information corresponding; Receive in described subframe position set and avoid information from the interference of macro base station; Information is avoided in corresponding subframe, to carry out transmission restriction, to avoid the interference to the user that described macro base station is served according to described interference.In the embodiment of the present invention, FeNB is by determining to receive the subframe position set that information is avoided in interference, and avoid information in this subframe position set reception from the interference of MeNB, effectively to solve the interference problem under Macro+Femto scene, effectively raise the systematic function in heterogeneous network and data rate.
Description
Technical field
The present invention relates to communication technical field, particularly relate to the method and apparatus disturbing in a kind of heterogeneous system and avoid.
Background technology
In LTE (LongTermEvolution, Long Term Evolution) R8 system, for the radius of society being less than 3KM, the required precision of synchronization among base stations is 3us, and for the radius of society being greater than 3KM, the required precision of synchronization among base stations is 10us.And in R9/10 system, due to the application of new technologies and methods, keep synchronously seeming even more important between base station.
In current research, the method of synchronization among base stations receives more concern, wherein, certain base station can keep synchronous by CRS (Cell-specificReferenceSignal, the public reference signal) signal of monitoring another one synchronising base station.
In addition, consider the impact of communication environments, some Femto (family) base station may not receive the available synchronizing signal from macro base station, now can utilize the synchronous method of multi-hop to realize synchronous, the synchronous schematic diagram of multi-hop as shown in Figure 1.Wherein, FeNB1 is synchronous with macro base station, and FeNB2 is not owing to receiving the synchronizing signal from macro base station, then FeNB2 can carry out synchronous with macro base station by FeNB1.
Concrete, in FIG, SynceNB is layer 0, utilizes the base station of layer 0 to carry out synchronous base station for layer 1 (FeNB1), utilizes the base station of layer 1 to carry out synchronous base station for layer 2 (FeNB2), the like, synchronous to realize multi-hop.
In prior art, for the interference problem in heterogeneous network, in current discussion, for the scene of Macro (macrosystem)+Femto (home system), time domain is coordinated and Poewr control method can as the basic scheme solving interference problem.Wherein, for time domain coordinate scheme, interference base station carries out transmission restriction in some subframe, to avoid the interference to another base station, and the schematic diagram of time domain interference coordination scheme as shown in Figure 2.In the radio frames of Femto transmission, by carrying out transmission restriction to subframe 1,3,5,7,9, to avoid the interference to Macro.
Realizing in process of the present invention, inventor finds at least there is following problem in prior art:
Time domain coordinate scheme requires the sub-frame set carrying out transmitting restriction between base station alternately, namely the mode of X2 mouth or S1 mouth can be adopted to carry out transmitting the sub-frame set of restriction alternately, but under the scene of Macro+Femto, FeNB does not define X2 interface, and current S1 interface does not support ICIC (Inter-cellinterferencecoordination, Inter-Cell Interference Coordination) function, therefore the process of carrying out the sub-frame set transmitting restriction alternately cannot be realized under Macro+Femto scene, and when if expansion S1 interface realizes interactive interference information, the complexity of system can be increased.
Summary of the invention
The embodiment of the present invention provides the method and apparatus disturbing in a kind of heterogeneous system and avoid, and to carry out the sub-frame set transmitting restriction alternately by eating dishes without rice or wine, avoids the interference between base station.
In order to achieve the above object, the embodiment of the present invention provides a kind of method disturbed in heterogeneous system and avoid, and comprising:
Obtain the subframe position set receiving and disturb and avoid information corresponding;
Receive in described subframe position set and avoid information from the interference of macro base station;
Avoid information in corresponding subframe, carry out transmission restriction according to described interference.
The embodiment of the present invention provides a kind of low power base station equipment, comprising:
Obtain module, for obtaining the subframe position set receiving and disturb and avoid information corresponding;
Receiver module, the subframe position set for obtaining in described acquisition module receives avoids information from the interference of macro base station;
Processing module, the interference for receiving according to described receiver module avoids information in corresponding subframe, carry out transmission restriction.
The embodiment of the present invention provides a kind of method disturbed in heterogeneous system and avoid, and comprising:
Determine that low power base station receives the subframe position set disturbed and avoid information corresponding;
Send interference in described subframe position set to described low power base station and avoid information; Avoid information in corresponding subframe, carry out transmission restriction for described low power base station according to described interference.
The embodiment of the present invention provides a kind of base station equipment, comprising:
Determination module, for determining that low power base station receives the subframe position set disturbed and avoid information corresponding;
Sending module, the described subframe position set for determining at described determination module sends interference to described low power base station and avoids information; Avoid information in corresponding subframe, carry out transmission restriction for described low power base station according to described interference.
Compared with prior art, the present invention at least has the following advantages:
FeNB is by determining to receive the subframe position set that information is avoided in interference, and avoid information in this subframe position set reception from the interference of MeNB, effectively to solve the interference problem under Macro+Femto scene, effectively raise the systematic function in heterogeneous network and data rate.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the synchronous schematic diagram of multi-hop in prior art;
Fig. 2 is the schematic diagram of time domain interference coordination scheme in prior art;
Fig. 3 disturbs the method flow schematic diagram avoided in a kind of heterogeneous system of providing of the embodiment of the present invention one;
Fig. 4 is the schematic diagram of symbolshift in the embodiment of the present invention one;
Fig. 5 is a kind of base station equipment structure schematic diagram that the embodiment of the present invention two provides;
Fig. 6 is a kind of base station equipment structure schematic diagram that the embodiment of the present invention three provides.
Embodiment
In the mobile communication network, along with growing to the requirement of data rate and covering, traditional provides the method for access can not meet the demands with macro base station, by adopting cell splitting, and in hot zones or some low power base station of indoor deployment (Pico base station, Femto base station and Relay etc.), can be good at addressing this is that.Because low power base station is a kind of base station equipment be applied under family room's environment, working environment or other little overlay environment, operator can be made to provide the attractive business of more high data rate, more low cost.
But, the introducing of low power base station can cause the interference in system relative to even more serious same layer network, for the interference on control channel, become the bottleneck with lower heterogeneous network work frequently, how effectively to avoid interference is the problem needing to solve, and under Macro+Femto scene, the process of carrying out the sub-frame set transmitting restriction alternately cannot be realized in prior art.
For the problems referred to above, the embodiment of the present invention provides the method and apparatus disturbing in a kind of heterogeneous system and avoid, and with for schemes such as current time domain coordinate scheme and power controls, proposes a kind ofly to monitor the mode avoiding inter base station interference by eating dishes without rice or wine.And under Macro+Femto scene, also effectively can solve the interference problem existed under current Macro+Femto scene, effectively improve the systematic function in heterogeneous network and data rate.
Below in conjunction with the accompanying drawing in the present invention, be clearly and completely described the technical scheme in the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention one provides a kind of method disturbed in heterogeneous system and avoid, and under the method is applied to the scene of Macro+Femto, as shown in Figure 3, the method that this interference is avoided comprises the following steps:
Step 301, FeNB starts shooting, and sets up synchronous with MeNB.
Wherein, the process that this foundation is synchronous comprises: FeNB is synchronous by what monitor that the CRS signal of MeNB keeps with MeNB.
Step 302, FeNB obtains and receives the subframe position set that information is avoided in interference.
Concrete, when after FeNB start, the network management information from Network Management Equipment can be received, in this network management information, comprise the subframe position set (namely FeNB can avoid information by the interference of this subframe position set reception MeNB) disturbed and avoid information corresponding.Wherein, this subframe position set is identical for MeNB and FeNB, and MeNB needs to send interference in these subframe position and avoids information, and FeNB needs the interference receiving MeNB in these subframe position to avoid information, carries out interference and avoids.
Further, Network Management Equipment needs the network management information carrying subframe position set (MeNB sends interference and avoids the subframe position set of information) to inform to FeNB and MeNB, send interference by MeNB according to this subframe position set and avoid information, FeNB monitors interference according to this subframe position set and avoids information.
Certainly, in practical application, by other means subframe position set can also be informed to FeNB and MeNB, such as, after MeNB knows subframe position set, by MeNB, subframe position set is informed to FeNB, for convenience of description, illustrate no longer in detail in the embodiment of the present invention.
In the embodiment of the present invention, when after FeNB start, the subframe position set avoiding information corresponding is disturbed in the reception that can also receive in predefined subframe position set from MeNB.Wherein, this predefined subframe position set can be selected arbitrarily according to actual needs, or is pre-defined by agreement; The subframe position set avoiding information corresponding is disturbed in the reception that the mode that this receive mode includes but not limited to receive RRC signaling or system information receives from MeNB.
In addition, in practical application, predefined subframe position set can also be defined as receiving the subframe position set disturbed and avoid information corresponding, repeat no more in the embodiment of the present invention.
Step 303, information is avoided in the interference that FeNB receives MeNB in this subframe position set.
In the embodiment of the present invention, this interference avoids information to include but not limited to:
Subframe configuration information, includes but not limited in this subframe configuration information: need the sub-frame set carrying out transmitting restriction, carry out the type (as almostblank or MBSFN sub-frame) etc. transmitting restriction.
Power control information, this power control information includes but not limited to: downlink power control parameter, uplink power control parameter, power control target signal to noise ratio, uplink power control Optimal Parameters etc.
Before it should be noted that information is avoided in interference that FeNB receives MeNB in this subframe position set, MeNB needs to avoid information to send to FeNB interference in this subframe position set.
Concrete, interference avoids information to send to the mode of FeNB to include but not limited to by MeNB:
Interference avoids information to send to FeNB by the mode of RRC (RadioResourceControl, wireless heterogeneous networks) signaling by MeNB; Or,
Interference avoids information to send to FeNB by the mode of system information (SIB/MIB information) by MeNB.
Corresponding, the interference that FeNB receives MeNB in this subframe position set avoids the mode of information to include but not limited to:
Information is avoided in the interference that FeNB receives MeNB in the mode receiving RRC signaling in this subframe position set; Or,
Information is avoided in the interference that FeNB receives MeNB in the mode of receiving system information in this subframe position set.
FeNB is configured to MBSFN (MultimediaBroadcastmulticastserviceSingleFrequencyNetwor k, multimedia broadcast multi-broadcasting business Single Frequency Network) subframe in this sub-frame set.
It should be noted that in the embodiment of the present invention, for TDD (TimeDivisionDuplexing, time division duplex) system, obtain interference to enable FeNB and avoid information, between FeNB and MeNB, also need the symbolshift of certain symbol.Such as, suppose in the control area of FeNB, to only have a symbol, have the shift of two symbols between FeNB and MeNB, the schematic diagram of symbolshift as shown in Figure 4, the RRC signaling or the system information that the position being configured to MBSFN sub-frame at FeNB receive MeNB avoid information to obtain interference.
Step 304, FeNB avoids information in corresponding subframe position, carry out transmission restriction according to interference.
Wherein, transmit restriction and refer to that interference base station (such as, FeNB) limits the transmission of its particular channel in some subframe position, to avoid the interference to disturbed system in this subframe; Or,
Interference base station limits the transmission of its particular channel in whole subframe, to avoid the interference to disturbed system in this subframe; Or,
The particular channel power enterprising Row sum-equal matrix of interference base station in subframe, to avoid the interference to disturbed system in this subframe.
Concrete, owing to avoiding in interference carrying the information such as subframe configuration information, power control information in information, then avoid information FeNB can carry out transmission restriction according to interference, repeat no longer in detail in this process embodiment of the present invention.
In sum, by adopting above-mentioned processing procedure, information is avoided in the interference that namely can obtain MeNB on FeNB, and avoids information to carry out transmission restriction according to interference, thus the interference realized between FeNB and MeNB is avoided.
In actual applications, if when acquisition disturbs the subframe position set avoiding information corresponding to change, the method can also comprise the following steps:
Step 305, determines that the subframe position set avoiding information corresponding is disturbed in the reception after changing.
Wherein, if when needing to upgrade the subframe position set obtaining and disturb and avoid information corresponding, then the reception after change can disturb the subframe position set avoiding information corresponding to submit to Network Management Equipment by network management interface by MeNB, determine that the subframe position set avoiding information corresponding is disturbed in the reception after changing by Network Management Equipment, and this information is sent to MeNB and FeNB.Certainly, in practical application, Network Management Equipment also can be determined to change the rear subframe position set receiving interference and avoid information corresponding by other means, repeats no more in the embodiment of the present invention.
Or, MeNB determine change after reception disturb the subframe position set avoiding information corresponding, and the reception before change disturb avoid information corresponding sub-frame set position on by RRC signaling or system information transmission change after reception disturb the subframe position set avoiding information corresponding.
Step 306, FeNB obtains and receives the subframe position set that information is avoided in interference.After acquisition subframe position set, to forward in step 303 interference subframe position set in the updated receiving MeNB to and avoid information.
In this step, FeNB obtains to receive to disturb and avoids the mode of the subframe position set of information to include but not limited to:
(1), after Network Management Equipment determines that the subframe position set avoiding information corresponding is disturbed in the reception after changing, the subframe position set avoiding information corresponding is disturbed to inform to FeNB the reception after change.
(2) MeNB disturb in current reception avoid information corresponding subframe position set on by change after reception disturb the subframe position set avoiding information corresponding to inform to FeNB.
Concrete, after the subframe position set avoiding information corresponding is disturbed in the reception after MeNB knows change, the subframe position set after change can be informed to FeNB by RRC signaling or system information by MeNB in current subframe position set.The reception of FeNB after change is disturbed the subframe position set avoiding information corresponding to obtain interference and is avoided information, and corresponding sub-frame set is carried out transmission restriction.
In actual applications, if when the subframe position set carrying out transmitting restriction changes, the method can also comprise the following steps:
Step 307, determines the subframe position set of the carrying out transmission restriction after changing.
Wherein, if when needing to upgrade the subframe position set carrying out transmitting restriction, then the subframe position set of the carrying out transmission restriction after change can be submitted to Network Management Equipment by network management interface by MeNB, determined the subframe position set carrying out transmitting restriction by Network Management Equipment, and this information is sent to MeNB and FeNB.Certainly, in practical application, Network Management Equipment also can determine the subframe position set of the carrying out transmission restriction after changing by other means, repeats no more in the embodiment of the present invention.
Or the needs after MeNB determines change carry out transmitting the subframe position set limited, and transmit by the carrying out after RRC signaling or system information transmission change the subframe position set limited on the sub-frame set position that FeNB reception interference avoids information corresponding.
It should be noted that, in the embodiment of the present invention, the reason that the subframe position set carrying out transmitting restriction changes includes but not limited to: the number due to the MUE be disturbed causes subframe position set to change, causes subframe position set to change due to traffic needs, by the mode of pre-planning, subframe position set changed.
In order to the technical scheme that the elaboration embodiment of the present invention clearly provides, be described in detail below in conjunction with concrete application scenarios.Under this application scene, for the scene that the femtocell base station (Femto base station: FeNB) that there is macro base station (MeNB) and covering hot zones in the same area coexists, wherein, MeNB and FeNB uses identical carrier wave, under this scene, EVAC (Evacuation Network Computer Model) is Femto, and disturbed system is Macro.
By the technical scheme adopting the embodiment of the present invention to provide, FeNB carries out transmission restriction in the subframe position set determined, can be worked by the MUE that FeNB disturbs in the sub-frame set that FeNB carries out transmitting restriction.
In practical application, if the quantity of the MUE be disturbed or traffic carrying capacity reduce, then macro base station can redefine the subframe position set that is carried out transmitting restriction, to reduce the number of subframes that FeNB carries out transmitting restriction, and the subframe position set after this renewal is informed to FeNB.
Under Another Application scene, for the scene that the femtocell base station (Femto base station: FeNB) that there is macro base station (MeNB) and covering hot zones in the same area coexists, wherein, MeNB and FeNB uses identical carrier wave, under this scene, EVAC (Evacuation Network Computer Model) is Femto, and disturbed system is Macro.
In practical application, business due to Femto system has tidal effect (such as, possibility business demand is less by day, and the business demand amount of period such as grade is more between the lights), namely Femto needs the change carrying out the subframe position set transmitting restriction to change according to certain rule.Therefore, MeNB can according to this tidal effect of Femto system, and according to the process of pre-planning, the subframe position set transmitting restriction is carried out in adjustment, and this subframe position set is informed to FeNB.
Visible, in the technical scheme that the embodiment of the present invention provides, FeNB is by determining to receive the subframe position set that information is avoided in interference, and avoid information in this subframe position set reception from the interference of MeNB, effectively to solve the interference problem under Macro+Femto scene, effectively raise the systematic function in heterogeneous network and data rate.
Based on the inventive concept same with said method, additionally provide a kind of low power base station equipment in the embodiment of the present invention two, as shown in Figure 5, comprising:
Obtain module 11, for obtaining the subframe position set receiving and disturb and avoid information corresponding; Described interference avoids information to comprise: subframe configuration information and/or power control information.
Receiver module 12, the subframe position set for obtaining in described acquisition module 11 receives avoids information from the interference of macro base station.
Processing module 13, the interference for receiving according to described receiver module 12 avoids information in corresponding subframe, carry out transmission restriction.
Described acquisition module 11, specifically for receiving the network management information from Network Management Equipment, carries the described subframe position set receiving interference and avoid information corresponding in described network management information; Or,
Predefined subframe position set described in receiving in the mode receiving RRC signaling or system information disturb from the reception of macro base station the subframe position set avoiding information corresponding; Or,
Determine that predefined subframe position set is receive the subframe position set disturbed and avoid information corresponding.
Described receiver module 12, avoids information from the interference of macro base station described in receiving in the mode receiving RRC signaling in described subframe position set; Or,
Information is avoided in the interference that described subframe position set receives from described macro base station in the mode of receiving system information.
Described processing module 13, limits the transmission of particular channel specifically for avoiding information according to described interference on given sub-frame position; Or,
Avoid information in whole subframe, limit the transmission of particular channel according to described interference; Or,
Avoid information at the enterprising Row sum-equal matrix of particular channel power of given sub-frame according to described interference.
Described acquisition module 11, also for when described reception disturbs the subframe position set avoiding information corresponding to change, the subframe position set avoiding information corresponding is disturbed in the reception obtained after change;
Described receiver module 12, also disturbs the subframe position set avoiding information corresponding receiving interference avoid information for the reception after change.
Described acquisition module 11, during specifically for determining that when Network Management Equipment the subframe position set avoiding information corresponding is disturbed in the reception after changing, receiving the reception after from the change of described Network Management Equipment and disturbing the subframe position set avoiding information corresponding; Or,
When described macro base station determines that the subframe position set avoiding information corresponding is disturbed in the reception after changing, receive the reception after from the change of described macro base station and disturb the subframe position set avoiding information corresponding.
Described acquisition module 11, is further used for avoiding the subframe position set of information receiving the reception after from the change of described macro base station in the mode receiving RRC signaling in current reception interference and disturbs the subframe position set avoiding information corresponding; Or,
Avoid the subframe position set of information receiving the reception after from the change of described macro base station in the mode of receiving system information in current reception interference and disturb the subframe position set avoiding information corresponding.
Described acquisition module 11, also for when described in carry out transmit restriction subframe position set change time, obtain change after carrying out transmission restriction subframe position set;
Described processing module 13, also carries out transmission restriction in the subframe position set of the carrying out transmission restriction after change.
Described acquisition module 11, during specifically for determining that when Network Management Equipment the carrying out after changing transmits the subframe position set of restriction, receives the subframe position set of the transmission of the carrying out after from the change of described Network Management Equipment restriction; Or,
When described macro base station determines the subframe position set of the carrying out transmission restriction after changing, receive the subframe position set of the transmission of the carrying out after from the change of described macro base station restriction.
Described acquisition module 11, is further used for avoiding the subframe position set of information receiving the set of the transmission of the carrying out after from the change of described macro base station siding stopping frame position in the mode receiving RRC signaling in current reception interference; Or,
Avoid the subframe position set of information receiving the set of the transmission of the carrying out after from the change of described macro base station siding stopping frame position in the mode of receiving system information in current reception interference.
In the embodiment of the present invention, this base station equipment also comprises:
Determination module 14, the process that the subframe position set carrying out described in determining in the following manner one or more transmitting restriction changes:
The subframe position set carrying out transmitting restriction described in determining according to the number of the MUE be disturbed changes;
The subframe position set carrying out transmitting restriction described in determining according to traffic needs changes;
The subframe position set carrying out transmitting restriction described in determining according to the mode of pre-planning changes.
Wherein, the modules of apparatus of the present invention can be integrated in one, and also can be separated deployment.Above-mentioned module can merge into a module, also can split into multiple submodule further.
Visible, in the embodiment of the present invention, FeNB is by determining to receive the subframe position set that information is avoided in interference, and avoid information in this subframe position set reception from the interference of MeNB, effectively to solve the interference problem under Macro+Femto scene, effectively raise the systematic function in heterogeneous network and data rate.
Based on the inventive concept same with said method, in the embodiment of the present invention, additionally provide a kind of base station equipment, as shown in Figure 6, comprising:
Determination module 21, for determining that low power base station receives the subframe position set disturbed and avoid information corresponding; Described interference avoids information to comprise: subframe configuration information and/or power control information.
Sending module 22, the described low power base station for determining at described determination module 21 receives disturbs the subframe position set avoiding information corresponding to avoid information to described low power base station transmission interference; Avoid information in corresponding subframe, carry out transmission restriction for described low power base station according to described interference.
Described sending module 22, also for disturbing the subframe position set avoiding information corresponding to send to described low power base station described low power base station reception in the mode of RRC signaling or system information in predefined subframe position set.
Described sending module 22, the subframe position set disturbing and avoid information corresponding sends interference in the mode of RRC signaling to described low power base station avoids information specifically for receiving in described low power base station; Or,
Receive in described low power base station in the subframe position set disturbed and avoid information corresponding and avoid information in the mode of system information to described low power base station transmission interference.
Described sending module 22, when the subframe position set also avoiding information corresponding for receiving interference when described low power base station changes, the low power base station after described low power base station sends change receives the subframe position set disturbed and avoid information corresponding.
Described sending module 22, is further used for receiving the low power base station after the subframe position set disturbing and avoid information corresponding sends change in the mode of RRC signaling to described low power base station in present low power base station and receives the subframe position set disturbed and avoid information corresponding; Or,
Receive in present low power base station in the subframe position set disturbed and avoid information corresponding and receive to the low power base station after described low power base station transmission change the subframe position set disturbed and avoid information corresponding in the mode of system information.
Described sending module 22, also for when described in carry out transmitting restriction subframe position set change time, send the subframe position set of the carrying out transmission restriction after change to described low power base station.
Described sending module 22, is further used for the subframe position set receiving the carrying out transmission restriction after the subframe position set disturbing and avoid information corresponding sends change in the mode of RRC signaling to described low power base station in present low power base station; Or,
The subframe position set subframe position set disturbed and avoid information corresponding being carried out transmitting after described low power base station transmission change restriction in the mode of system information is received in present low power base station.
In the embodiment of the present invention, determination module 21, the process that the subframe position set carrying out described in also determining in the following manner one or more transmitting restriction changes:
The subframe position set carrying out transmitting restriction described in determining according to the number of the MUE be disturbed changes;
The subframe position set carrying out transmitting restriction described in determining according to traffic needs changes;
The subframe position set carrying out transmitting restriction described in determining according to the mode of pre-planning changes.
Wherein, the modules of apparatus of the present invention can be integrated in one, and also can be separated deployment.Above-mentioned module can merge into a module, also can split into multiple submodule further.
Visible, in the embodiment of the present invention, FeNB is by determining to receive the subframe position set that information is avoided in interference, and avoid information in this subframe position set reception from the interference of MeNB, effectively to solve the interference problem under Macro+Femto scene, effectively raise the systematic function in heterogeneous network and data rate.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required general hardware platform by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform method described in each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device in embodiment can carry out being distributed in the device of embodiment according to embodiment description, also can carry out respective change and be arranged in the one or more devices being different from the present embodiment.The module of above-described embodiment can merge into a module, also can split into multiple submodule further.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
Be only several specific embodiment of the present invention above, but the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (38)
1. disturb the method avoided in heterogeneous system, it is characterized in that, comprising:
Obtain the subframe position set receiving and disturb and avoid information corresponding;
Receive in described subframe position set and avoid information from the interference of macro base station;
Avoid information in corresponding subframe, carry out transmission restriction according to described interference;
Wherein, described interference avoids information to comprise: subframe configuration information, or subframe configuration information and power control information;
Wherein, described subframe configuration information comprises: needs carry out the sub-frame set transmitting restriction, carries out the type transmitting restriction;
Described method also comprises: FeNB carries out at needs the subframe that configuration in the sub-frame set of transmission restriction carries out transmitting Limit Type.
2. the method for claim 1, is characterized in that, the described subframe position set obtaining reception interference and avoid information corresponding, comprising:
Receive the network management information from Network Management Equipment, in described network management information, carry the described subframe position set receiving interference and avoid information corresponding; Or,
The subframe position set avoiding information corresponding is disturbed in the reception that predefined subframe position set receives from described macro base station in the mode receiving RRC signaling or system information; Or,
Determine that predefined subframe position set is receive the subframe position set disturbed and avoid information corresponding.
3. the method for claim 1, is characterized in that, receives and avoids information from the interference of macro base station, comprising in described subframe position set:
Information is avoided in the interference that described subframe position set receives from described macro base station in the mode receiving RRC signaling; Or,
Information is avoided in the interference that described subframe position set receives from described macro base station in the mode of receiving system information.
4. the method for claim 1, is characterized in that, avoids information in corresponding subframe, carry out transmission restriction, comprising according to described interference:
Avoid information on given sub-frame position, limit the transmission of particular channel according to described interference; Or,
Avoid information in whole subframe, limit the transmission of particular channel according to described interference; Or,
Avoid information at the enterprising Row sum-equal matrix of particular channel power of given sub-frame according to described interference.
5. the method for claim 1, is characterized in that, avoids information in corresponding subframe, carry out transmission restriction, also comprise afterwards according to described interference:
When described reception disturbs the subframe position set avoiding information corresponding to change, the subframe position set avoiding information corresponding is disturbed in the reception obtained after change;
And the reception after change disturb avoid information corresponding subframe position set on receive interference and avoid information.
6. method as claimed in claim 5, is characterized in that, the subframe position set avoiding information corresponding is disturbed in the reception obtained after change, comprising:
When Network Management Equipment determines that the subframe position set avoiding information corresponding is disturbed in the reception after changing, receive the reception after from the change of described Network Management Equipment and disturb the subframe position set avoiding information corresponding; Or,
When described macro base station determines that the subframe position set avoiding information corresponding is disturbed in the reception after changing, receive the reception after from the change of described macro base station and disturb the subframe position set avoiding information corresponding.
7. method as claimed in claim 6, is characterized in that, receive the reception after from the change of described macro base station and disturb the subframe position set avoiding information corresponding, comprising:
Avoid the subframe position set of information receiving the reception after from the change of described macro base station in the mode receiving RRC signaling in current reception interference and disturb the subframe position set avoiding information corresponding; Or,
Avoid the subframe position set of information receiving the reception after from the change of described macro base station in the mode of receiving system information in current reception interference and disturb the subframe position set avoiding information corresponding.
8. the method for claim 1, is characterized in that, avoids information in corresponding subframe, carry out transmission restriction, also comprise afterwards according to described interference:
When the described subframe position set carrying out transmitting restriction changes, obtain the subframe position set of the carrying out transmission restriction after change;
And the carrying out after change transmits the restriction that the subframe position set of restriction is transmitted.
9. method as claimed in claim 8, is characterized in that, obtains the subframe position set of the carrying out transmission restriction after change, comprising:
When Network Management Equipment determines the subframe position set of the carrying out transmission restriction after changing, receive the subframe position set of the transmission of the carrying out after from the change of described Network Management Equipment restriction; Or,
When described macro base station determines the subframe position set of the carrying out transmission restriction after changing, receive the subframe position set of the transmission of the carrying out after from the change of described macro base station restriction.
10. method as claimed in claim 9, is characterized in that, receives the subframe position set of the transmission of the carrying out after from the change of described macro base station restriction, comprising:
Avoid the subframe position set of information receiving the set of the transmission of the carrying out after from the change of described macro base station siding stopping frame position in the mode receiving RRC signaling in current reception interference; Or,
Avoid the subframe position set of information receiving the set of the transmission of the carrying out after from the change of described macro base station siding stopping frame position in the mode of receiving system information in current reception interference.
11. methods as claimed in claim 8, is characterized in that, the process that the subframe position set carrying out described in determining transmitting restriction changes comprises one or more with under type:
The subframe position set carrying out transmitting restriction described in determining according to the number of the MUE be disturbed changes;
The subframe position set carrying out transmitting restriction described in determining according to traffic needs changes;
The subframe position set carrying out transmitting restriction described in determining according to the mode of pre-planning changes.
12. 1 kinds of low power base station equipment, is characterized in that, comprising:
Obtain module, for obtaining the subframe position set receiving and disturb and avoid information corresponding;
Receiver module, the subframe position set for obtaining in described acquisition module receives avoids information from the interference of macro base station;
Processing module, the interference for receiving according to described receiver module avoids information in corresponding subframe, carry out transmission restriction;
Wherein, described interference avoids information to comprise: subframe configuration information, or subframe configuration information and power control information;
Wherein, described subframe configuration information comprises: needs carry out the sub-frame set transmitting restriction, carries out the type transmitting restriction;
Described equipment also for: carry out transmitting the subframe of Limit Type needing configuration in the sub-frame set carrying out transmitting restriction.
13. equipment as claimed in claim 12, is characterized in that,
Described acquisition module, specifically for receiving the network management information from Network Management Equipment, carries the described subframe position set receiving interference and avoid information corresponding in described network management information; Or,
The subframe position set avoiding information corresponding is disturbed in the reception that predefined subframe position set receives from described macro base station in the mode receiving RRC signaling or system information; Or,
Determine that predefined subframe position set is receive the subframe position set disturbed and avoid information corresponding.
14. equipment as claimed in claim 12, is characterized in that,
Described receiver module, avoids information specifically for the interference received from described macro base station in the mode receiving RRC signaling in described subframe position set; Or,
Information is avoided in the interference that described subframe position set receives from described macro base station in the mode of receiving system information.
15. equipment as claimed in claim 12, is characterized in that,
Described processing module, limits the transmission of particular channel specifically for avoiding information according to described interference on given sub-frame position; Or,
Avoid information in whole subframe, limit the transmission of particular channel according to described interference; Or,
Avoid information at the enterprising Row sum-equal matrix of particular channel power of given sub-frame according to described interference.
16. equipment as claimed in claim 12, is characterized in that,
Described acquisition module, also for when described reception disturbs the subframe position set avoiding information corresponding to change, the subframe position set avoiding information corresponding is disturbed in the reception obtained after change;
Described receiver module, also disturbs the subframe position set avoiding information corresponding receiving interference avoid information for the reception after change.
17. equipment as claimed in claim 16, is characterized in that,
Described acquisition module, during specifically for determining that when Network Management Equipment the subframe position set avoiding information corresponding is disturbed in the reception after changing, receiving the reception after from the change of described Network Management Equipment and disturbing the subframe position set avoiding information corresponding; Or,
When described macro base station determines that the subframe position set avoiding information corresponding is disturbed in the reception after changing, receive the reception after from the change of described macro base station and disturb the subframe position set avoiding information corresponding.
18. equipment as claimed in claim 17, is characterized in that,
Described acquisition module, is further used for avoiding the subframe position set of information receiving the reception after from the change of described macro base station in the mode receiving RRC signaling in current reception interference and disturbs the subframe position set avoiding information corresponding; Or,
Avoid the subframe position set of information receiving the reception after from the change of described macro base station in the mode of receiving system information in current reception interference and disturb the subframe position set avoiding information corresponding.
19. equipment as claimed in claim 12, is characterized in that,
Described acquisition module, also for when described in carry out transmit restriction subframe position set change time, obtain change after carrying out transmission restriction subframe position set;
Described processing module, the restriction also transmitted in the subframe position set of the carrying out transmission restriction after change.
20. equipment as claimed in claim 19, is characterized in that,
Described acquisition module, during specifically for determining that when Network Management Equipment the carrying out after changing transmits the subframe position set of restriction, receives the subframe position set of the transmission of the carrying out after from the change of described Network Management Equipment restriction; Or,
When described macro base station determines the subframe position set of the carrying out transmission restriction after changing, receive the subframe position set of the transmission of the carrying out after from the change of described macro base station restriction.
21. equipment as claimed in claim 20, is characterized in that,
Described acquisition module, is further used for avoiding the subframe position set of information receiving the set of the transmission of the carrying out after from the change of described macro base station siding stopping frame position in the mode receiving RRC signaling in current reception interference; Or,
Avoid the subframe position set of information receiving the set of the transmission of the carrying out after from the change of described macro base station siding stopping frame position in the mode of receiving system information in current reception interference.
22. equipment as claimed in claim 19, is characterized in that, also comprise:
Determination module, the process that the subframe position set carrying out described in determining in the following manner one or more transmitting restriction changes:
The subframe position set carrying out transmitting restriction described in determining according to the number of the MUE be disturbed changes;
The subframe position set carrying out transmitting restriction described in determining according to traffic needs changes;
The subframe position set carrying out transmitting restriction described in determining according to the mode of pre-planning changes.
The method disturbing to avoid in 23. 1 kinds of heterogeneous systems, is characterized in that, comprising:
Determine that low power base station receives the subframe position set disturbed and avoid information corresponding;
Send interference in described subframe position set to described low power base station and avoid information; Avoid information in corresponding subframe, carry out transmission restriction for described low power base station according to described interference;
Wherein, described interference avoids information to comprise: subframe configuration information, or subframe configuration information and power control information;
Wherein, described subframe configuration information comprises: needs carry out the sub-frame set transmitting restriction, carries out the type transmitting restriction;
Described method also comprises: FeNB carries out at needs the subframe that configuration in the sub-frame set of transmission restriction carries out transmitting Limit Type.
24. methods as claimed in claim 23, is characterized in that, determine that low power base station receives the subframe position set disturbed and avoid information corresponding, also comprise afterwards:
Described low power base station reception disturb the subframe position set avoiding information corresponding to send to described low power base station in the mode of RRC signaling or system information by predefined subframe position set.
25. methods as claimed in claim 23, is characterized in that, send interference and avoid information, comprising in described subframe position set to described low power base station:
The subframe position set that described interference avoids information corresponding sends interference in the mode of RRC signaling to described low power base station and avoids information; Or,
The subframe position set that described interference avoids information corresponding sends interference in the mode of system information to described low power base station and avoids information.
26. methods as claimed in claim 23, is characterized in that, send interference and avoid information, also comprise afterwards in described subframe position set to described low power base station:
When the subframe position set that described interference avoids information corresponding changes, the subframe position set that the interference after described low power base station sends change avoids information corresponding.
27. methods as claimed in claim 26, is characterized in that, the subframe position set that the interference after described low power base station sends change avoids information corresponding, comprising:
With the subframe position set that the mode of RRC signaling avoids information corresponding to the interference after described low power base station transmission change in the subframe position set that current interference avoids information corresponding; Or,
With the subframe position set that the mode of system information avoids information corresponding to the interference after described low power base station transmission change in the subframe position set that current interference avoids information corresponding.
28. methods as claimed in claim 23, is characterized in that, send interference and avoid information, also comprise afterwards in described subframe position set to described low power base station:
When the described subframe position set carrying out transmitting restriction changes, send the subframe position set of the carrying out transmission restriction after change to described low power base station.
29. methods as claimed in claim 28, is characterized in that, send the subframe position set of the carrying out transmission restriction after change, comprising to described low power base station:
The subframe position set that current interference avoids information corresponding sends to described low power base station in the mode of RRC signaling the subframe position set of the carrying out transmission restriction after change; Or,
The subframe position set that current interference avoids information corresponding carries out the subframe position set transmitting restriction in the mode of system information after described low power base station sends change.
30. methods as claimed in claim 28, is characterized in that, the process that the subframe position set carrying out described in determining transmitting restriction changes comprises one or more with under type:
The subframe position set carrying out transmitting restriction described in determining according to the number of the MUE be disturbed changes;
The subframe position set carrying out transmitting restriction described in determining according to traffic needs changes;
The subframe position set carrying out transmitting restriction described in determining according to the mode of pre-planning changes.
31. 1 kinds of base station equipments, is characterized in that, comprising:
Determination module, for determining that low power base station receives the subframe position set disturbed and avoid information corresponding;
Sending module, the described subframe position set for determining at described determination module sends interference to described low power base station and avoids information; Avoid information in corresponding subframe, carry out transmission restriction for described low power base station according to described interference;
Wherein, described interference avoids information to comprise: subframe configuration information, or subframe configuration information and power control information;
Wherein, described subframe configuration information comprises: needs carry out the sub-frame set transmitting restriction, carries out the type transmitting restriction;
Described equipment also for: carry out transmitting the subframe of Limit Type needing configuration in the sub-frame set carrying out transmitting restriction.
32. base station equipments as claimed in claim 31, is characterized in that,
Described sending module, also for disturbing the subframe position set avoiding information corresponding to send to described low power base station described low power base station reception in the mode of RRC signaling or system information in predefined subframe position set.
33. base station equipments as claimed in claim 31, is characterized in that,
Described sending module, specifically for avoid information corresponding in described interference subframe position set on send interference in the mode of RRC signaling to described low power base station and avoid information; Or,
The subframe position set that described interference avoids information corresponding sends interference in the mode of system information to described low power base station and avoids information.
34. base station equipments as claimed in claim 31, is characterized in that,
Described sending module, also for when the subframe position set that described interference avoids information corresponding changes, the subframe position set that the interference after described low power base station sends change avoids information corresponding.
35. base station equipments as claimed in claim 34, is characterized in that,
Described sending module, is further used in the subframe position set avoiding information corresponding in current interference with the subframe position set that the mode of RRC signaling avoids information corresponding to the interference after described low power base station transmission change; Or,
With the subframe position set that the mode of system information avoids information corresponding to the interference after described low power base station transmission change in the subframe position set that current interference avoids information corresponding.
36. base station equipments as claimed in claim 31, is characterized in that,
Described sending module, also for when described in carry out transmitting restriction subframe position set change time, send the subframe position set of the carrying out transmission restriction after change to described low power base station.
37. base station equipments as claimed in claim 36, is characterized in that,
Described sending module, the subframe position set being further used for avoiding information corresponding in current interference sends the subframe position set of the carrying out transmission restriction after change to described low power base station in the mode of RRC signaling; Or,
The subframe position set that current interference avoids information corresponding carries out the subframe position set transmitting restriction in the mode of system information after described low power base station sends change.
38. base station equipments as claimed in claim 36, is characterized in that,
Determination module, the process that the subframe position set carrying out described in also determining in the following manner one or more transmitting restriction changes:
The subframe position set carrying out transmitting restriction described in determining according to the number of the MUE be disturbed changes;
The subframe position set carrying out transmitting restriction described in determining according to traffic needs changes;
The subframe position set carrying out transmitting restriction described in determining according to the mode of pre-planning changes.
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| WO2014067067A1 (en) * | 2012-10-30 | 2014-05-08 | 华为技术有限公司 | Resource allocation method, apparatus and system |
| CN103338456B (en) * | 2013-06-14 | 2015-11-18 | 东南大学 | A kind of co-channel interference suppression method based on combined channel and power division |
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