CN101854635A - Method and system for transmitting intercell interference coordination indication information - Google Patents
Method and system for transmitting intercell interference coordination indication information Download PDFInfo
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Abstract
The invention discloses a method and a system for transmitting intercell interference coordination indication information. The method includes the step that a cell transmits ICIC indication information to neighboring cells via an air interface, wherein the ICIC indication information is used for carrying out an ICIC algorithm function. The invention solves the problem that the ICIC indication information cannot be transmitted because X2 interfaces do not exist between femtocells and between femtocells and macro base stations, and thereby femtocells can transmit the ICIC indication information.
Description
Technical field
The present invention relates to the communications field, in particular to the sending method and the device of a kind of inter cell interference coordination (Inter Cell Interference Coordination abbreviates ICIC as) indication information.
Background technology
At present, Long Term Evolution (Long-Term Evolution, abbreviating LTE as) system physical layer adopts is OFDM (Orthogonal Frequency DivisionMultiplexing, abbreviate OFDM as) technology, than code division multiple access (Code Division Multiple Access abbreviates CDMA as) technology certain advantage is arranged during the problem of OFDM technology interference in solving sub-district (sector).But interference problem may be more serious than cdma system between the sub-district that ofdm system brings, particularly when between the adjacent area being same frequency.The thought of ICIC technology is coordinated carrying out physical source distributing between the neighbor cell exactly, to avoid or to reduce and disturb (ICI) between the sub-district.
Particularly, for up, when serving BS is dispatched subscriber equipment (User Equipment to cell edge, abbreviate UE as) Physical Resource Block (Physical ResourceBlock, abbreviate PRB as) account for the ratio of the total PRB in sub-district when higher, this serving BS sends strong jamming indication (High Interference Indication abbreviates HII as) to adjacent base station, represents that this sub-district is about to take place strong jamming at these PRB.The neighbor cell that receives HII indication tries not to distribute these PRB into the central user that edge customer and Signal Interference and Noise Ratio (SignalInterference and Noise Ratio abbreviates SINR as) are had relatively high expectations when scheduling.When serving BS detects uplink interference bigger the time, send overload indication (Overload Indication abbreviates OI as) to adjacent base station, strong jamming has taken place at these PRB in the expression sub-district.Can take from falling jamming countermeasure after neighbor cell is received the OI report, promptly neighbor cell checks that this Cell Edge User has the higher PRB of OI of no use, if having, then considers to fall power, if can't reduce interference, then adjusts the running time-frequency resource of this UE.
For descending, serving BS adopts Relative Narrowband TX Power indication (RelativeNarrowband TX Power, abbreviate RNTP as) tell the user emission power on the indicated PRB of adjacent base station can exceed certain thresholding, adjacent base station is determined scheduling resource with reference to above-mentioned information after receiving the RNTP indication.
In order to tackle the challenge of Wireless Fidelity (Wireless Fidelity abbreviates WiFi as), strengthen indoor covering power, increased Home eNodeB in the LTE system.The access module of Home eNodeB has three kinds: open, sealing with mix.The Home eNodeB of closed mode only allows to insert through the user who authorizes, as users such as kinsfolk, members of community, these are called non-public authorized user group (Closed Subscriber Group through the user who authorizes, be called for short CSG), authorization message is stored in the Subscriber Identity Module (Universal SubscriberIdentity Module abbreviates USIM as) of UE.
The frequency resource that Home eNodeB can use operator to reserve for all Home eNodeB specially also can be used the frequency resource identical with macro base station, and the sub-district that macro base station covered is called macrocell, and corresponding, the sub-district that Home eNodeB covered is called the CSG sub-district.Because Home eNodeB has mobility as the privately owned equipment of user, and the users of power of Home eNodeB can independently be reconciled, a large amount of deployment along with Home eNodeB, after Home eNodeB increases, interference problem is except the interference between existing macrocell and the macrocell, increased the interference between macrocell and the CSG sub-district, and the interference between CSG sub-district and the CSG sub-district.
At third generation partner program (3rd Generation Partnership Project, abbreviate 3GPP as) explanation on the agreement TS 36.423V8.3.0, the indication information (OI HII RNTP etc.) that is used for the ICIC function all is that the load message (LOAD INFORMATION) by X2 interface is transmitted between macro base station and macro base station.
Fig. 1 is the schematic diagram according to the syndeton of the Home eNodeB of correlation technique, as shown in Figure 1, the Home eNodeB 1 that is connected with terminal 2 with terminal 1, the Home eNodeB 2 that is connected with terminal 4 with terminal 3, the Home eNodeB 3 that is connected with terminal 5 are connected to core net by the S1 interface, as can be seen, there is not X2 interface between the present Home eNodeB and between Home eNodeB and the macro base station, can cause the disappearance of Home eNodeB ICIC function like this, therefore, need to adopt alternative to solve the transmission of ICIC indication information.
At not realizing the problem that the ICIC indication information transmits owing to there is X2 interface between the Home eNodeB and between Home eNodeB and the macro base station in the correlation technique, effective solution is not proposed as yet at present.
Summary of the invention
The problem that can't realize the transmission of ICIC indication information at Home eNodeB in the correlation technique owing to there not being X2 interface proposes the present invention, and for this reason, main purpose of the present invention is to provide a kind of delivery plan of ICIC indication information, to address the above problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of sending method of inter cell interference coordination ICIC indication information.
Sending method according to inter cell interference coordination ICIC indication information of the present invention comprises: a sub-district sends the ICIC indication information by air interface to its abutting subdistrict, and wherein, the ICIC indication information is used to realize the ICIC algorithm function.
Preferably, the sub-district sends the ICIC indication information by air interface to abutting subdistrict and comprises: the sub-district by air interface via abutting subdistrict is sent the ICIC indication information as the subscriber equipment of Serving cell to abutting subdistrict.
Preferably, after subscriber equipment receives the ICIC indication information and before abutting subdistrict sends the ICIC indication information, said method also comprises: subscriber equipment judges whether that according to the ICIC indication information needs carry out the ICIC algorithm process, in judged result is under the situation that is, sends the ICIC indication information to abutting subdistrict.
Preferably, subscriber equipment judges whether that according to the ICIC indication information needs carry out the ICIC algorithm process and comprise: whether needs carry out the ICIC algorithm process to subscriber equipment according to the resource judgment that self whether takies generation interference indicated in the ICIC indication information.
Preferably, subscriber equipment sends to abutting subdistrict with ICIC indication information relevant with self in the ICIC indication information that receives.
Wherein, subscriber equipment is the subscriber equipment that is in the abutting subdistrict and possesses the ability of the message that receives the sub-district.
Preferably, in the sub-district by air interface after abutting subdistrict sends the ICIC indication information, said method also comprises: abutting subdistrict receives the ICIC indication information from the sub-district, and carries out the ICIC algorithm process according to the ICIC indication information.
Wherein, it is one of following that the information content of ICIC indication information comprises at least: the information of the information of overload indication, strong jamming indication, the information of Relative Narrowband TX Power indication, the ICIC indication information of redetermination, wherein, the ICIC indication information of redetermination serves as the indication unit with a plurality of Physical Resource Block or frequency range.
Preferably, sub-district and/or abutting subdistrict comprise one of following: non-public authorized user group CSG sub-district, macrocell.
Preferably, the ICIC indication information carries by one of following signaling: radio resource control layer signaling, media access control layer signaling, physical layer signaling.
Wherein, the radio resource control layer signaling is a system broadcast message.
Wherein, physical layer signaling adopts predetermined running time-frequency resource position.
To achieve these goals, according to a further aspect in the invention, provide a kind of dispensing device of ICIC indication information.
Be arranged in the sub-district according to the dispensing device of ICIC indication information of the present invention and comprise: sending module, be used for sending the ICIC indication information to its abutting subdistrict by air interface, wherein, the ICIC indication information is used to realize the ICIC algorithm function.
By the present invention, adopt the method for transmitting the ICIC indication information between the sub-district by air interface, solved and not realized the problem that the ICIC indication information transmits owing to there is X2 interface between the Home eNodeB and between Home eNodeB and the macro base station in the correlation technique, and then realized the transmission of Home eNodeB the ICIC indication information.Between macro base station and macro base station,, also can adopt technical scheme of the present invention to realize the transmission of ICIC indication information between macro base station if there is not X2 interface.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the syndeton of the Home eNodeB of correlation technique;
Fig. 2 is the schematic diagram of network topology structure that is used to implement the CSG sub-district of the embodiment of the invention;
Fig. 3 is the flow chart that system broadcast message directly sends to the ICIC indication information abutting subdistrict that passes through according to the embodiment of the invention one;
Fig. 4 is the flow chart that physical layer signaling directly sends to the ICIC indication information abutting subdistrict that passes through according to the embodiment of the invention two;
Fig. 5 is the flow chart that UE transfer system broadcast message sends to the ICIC indication information abutting subdistrict that passes through according to the embodiment of the invention three.
Embodiment
Functional overview
Consider in the correlation technique between the Home eNodeB and between Home eNodeB and the macro base station, can't realize the problem that the ICIC indication information transmits owing to there is not X2 interface, the embodiment of the invention provides a kind of delivery plan of ICIC indication information, transmit the ICIC indication information by air interface between the Home eNodeB and between Home eNodeB and the macro base station, promptly, Serving cell sends the ICIC indication information be used to realize the ICIC algorithm function by air interface to abutting subdistrict, can realize between the Home eNodeB and the transmission of ICIC indication information between Home eNodeB and the macro base station.The present invention also is applicable to the situation that does not have X2 interface between macro base station and the macro base station.
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Method embodiment
According to embodiments of the invention, a kind of sending method of ICIC indication information is provided, be applied in the LTE system.This method comprises: a sub-district sends the ICIC indication information by air interface to its abutting subdistrict, and wherein, the ICIC indication information is used to realize the ICIC algorithm function.
Wherein, two kinds of implementations are arranged, mode one: the sub-district directly sends to the ICIC indication information in abutting connection with Target cell, mode two: the sub-district is carried out the transfer processing by UE to the ICIC indication information, is transmitted to the adjacent area.That is, this sub-district can be by air interface via abutting subdistrict is sent the ICIC indication information as the UE of Serving cell to abutting subdistrict.This UE can be the UE that is in the abutting subdistrict and possesses the ability of the message that receives this sub-district.
Particularly, when the underway commentaries on classics of UE is handled, can carry out transfer according to the necessity that self whether exists ICIC to handle.That is, the sub-district sends the ICIC indication information by air interface to UE; UE receives the ICIC indication information, and (promptly according to the ICIC indication information, according to self whether taking the resource that generation indicated in the ICIC indication information is disturbed) judge whether and need carry out the ICIC algorithm process its (UE itself), in judged result is under the situation that is, sends the ICIC indication information to its Serving cell.
Wherein, in order to save interface-free resources, UE can send to abutting subdistrict with ICIC indication information relevant with self in the ICIC indication information that receives, that is to say, UE can be only will send to its Serving cell with own relevant ICIC indicating information contents to the ICIC indicating information contents that its Serving cell sends.
After this, abutting subdistrict receives the ICIC indication information from the sub-district, and can carry out the ICIC algorithm process according to the ICIC indication information.
Wherein, it is one of following that the information content of above-mentioned ICIC indication information can comprise at least: the information of the information of OI, the information of HII, RNTP, the ICIC indication information of redetermination, wherein, in order to save interface-free resources, the ICIC indication information of this redetermination, be with a plurality of Physical Resource Block or frequency range serve as the indication unit.
Above-mentioned ICIC indication information can carry by one of following signaling: Radio Resource control (Radio Resource Control, abbreviate RRC as) layer signaling, medium access control (Media Access Control abbreviates MAC as) layer signaling, physical layer signaling.Wherein, the rrc layer signaling can be system broadcast message, and physical layer signaling can adopt predetermined running time-frequency resource position, so that UE receives.
Wherein, this sub-district and/or abutting subdistrict can comprise one of following: CSG sub-district, macrocell.The ICIC indication information can be to send to the CSG sub-district by the CSG sub-district, can be to send to macrocell by the CSG sub-district, can send to the CSG sub-district by macrocell, can also be to send to macrocell by macrocell.
Need to prove that " adjacency " relation can include but not limited to following relation: neighbouring relations, inclusion relation or involved relation between the above-mentioned sub-district.
By this embodiment, adopt the method for transmitting the ICIC indication information between the sub-district by air interface, solved Home eNodeB in the correlation technique and can't not realize the problem that the ICIC indication information transmits, and then realized the transmission of Home eNodeB the ICIC indication information owing to there is X2 interface.
Be described in detail below in conjunction with the implementation procedure of example the embodiment of the invention.
Fig. 2 is the schematic diagram of network topology structure that is used to implement the CSG sub-district of the embodiment of the invention, as shown in Figure 2, CSG sub-district 1 is adjacent with CSG sub-district 2-7, and CSG sub-district 1-7 uses identical frequency range, belong to co-frequency cell, the bandwidth of each sub-district all is 5M (25PRB).4 UE are arranged in the CSG sub-district 1, and wherein, UE1 and UE2 belong to Cell Edge User.In the CSG sub-district 4,2 UE are arranged, wherein, UE8 belongs to Cell Edge User.The user situation of other each CSG sub-district also as shown in Figure 2.To embodiments of the invention be described based on the network topology structure of Fig. 2 below.
Need to prove, can in computer system, carry out in the step shown in the flow chart of the following drawings such as a set of computer-executable instructions, and, though there is shown logical order in flow process, but in some cases, can carry out step shown or that describe with the order that is different from herein.
Embodiment one
When the CSG cell scheduling accounts for total PRB quantity for the PRB quantity of edge customer to reach certain thresholding, need adjacent area around the notice, the situation of its strong jamming PRB, these PRB are avoided in the adjacent area as far as possible in scheduling its edge UE.The thresholding of supposing the backstage configuration is 60%.This sub-district strong jamming of adjacent area PRB situation is broadcasted in system broadcast message 13 around supposing notice, includes the interfere information (for example, HII relevant information) of each PRB of sub-district ID and sub-district in the system broadcast message 13.
Fig. 3 is the flow chart that system broadcast message directly sends to the ICIC indication information abutting subdistrict that passes through according to the embodiment of the invention one, and as shown in Figure 3, this flow process comprises that specifically following step 301 is to step 303:
Step 301: between the UE1 in the CSG sub-district 1 and UE2 and sub-district, connect, carry out data upload and download, the up PRB quantity that takies is 16 PRB, CSG sub-district 1 judges that whether the PRB that edge UE uses accounts for the ratio of total PRB above threshold value, when the ratio that the PRB that uses as edge UE accounts for total PRB quantity surpasses the threshold value 60% of configuration, then notify neighbor cell to fall to disturb and handle.
Step 302:CSG sub-district 1 is by broadcast transmission system broadcast 13, and the adjacent area sends the interfere information (that is, sending the ICIC indication information) of each PRB of CSG sub-district 1 towards periphery, represents that these PRB have distributed to the edge customer use of CSG sub-district 1.
Step 303: CSG sub-district, adjacent area 4 obtains the interfere information of CSG sub-district 1 each PRB after the system broadcast message 13 that receives CSG sub-district 1, and then, these PRB are avoided in CSG sub-district 4 when UE8 is carried out scheduling of resource.The processing of other adjacent areas is similar to the processing of CSG sub-district 4.
By this embodiment, realized directly the ICIC indication information being sent to abutting subdistrict by system broadcast message.
Embodiment two
Fig. 4 is the flow chart that physical layer signaling directly sends to the ICIC indication information abutting subdistrict that passes through according to the embodiment of the invention two, and as shown in Figure 4, this flow process comprises that specifically following step 401 is to step 403:
Step 401: when CSG sub-district 1 detects some PRB uplink interference bigger the time, the notice neighbor cell falls to disturb to be handled.
Step 402:CSG sub-district 1 directly notifies neighbor cell to transship on these PRB (that is, sending the ICIC indication information) by physical layer signaling, represents that promptly CSG sub-district 1 at these PRB strong jamming has taken place.
Step 403: CSG sub-district, adjacent area 4 receives the OI report (promptly, the ICIC indication information) can take after from falling jamming countermeasure, promptly, CSG sub-district 4 checks whether this Cell Edge User UE8 uses the PRB that overload takes place on the CSG sub-district 1, if find UE8 the PRB that uses the generation overload is arranged, then consider to fall power, if can't reduce interference to UE8, then adjust the frequency resource of UE8, avoid using the PRB that overload takes place on the CSG sub-district 1.The processing of the similar CSG of the processing of other adjacent areas sub-district 4.
By this embodiment, realized directly the ICIC indication information being sent to abutting subdistrict by physical layer signaling.
Embodiment three
This sub-district strong jamming of adjacent area PRB situation is broadcasted in system broadcast message 13 around supposing notice, includes the interfere information (for example, overload indication relevant information) of each PRB of sub-district ID and sub-district in the system broadcast message 13.
Fig. 5 is that the UE transfer system broadcast message of passing through according to the embodiment of the invention three sends to the flow chart of abutting subdistrict with the ICIC indication information, and as shown in Figure 5, this flow process comprises that specifically following step 501 is to step 505:
Step 501:, need the notice neighbor cell fall to disturb and handle when CSG sub-district 1 detects some PRB uplink interference bigger the time.
Transship on these PRB by the UE of broadcast system broadcast 13 notice neighbor cells step 502:CSG sub-district 1, represents that promptly CSG sub-district 1 at these PRB strong jamming has taken place.
Step 503: after the UE8 in the CSG sub-district, adjacent area 4 receives the system broadcast message 13 of CSG sub-district 1 transmission, overload PRB information according to indication in the system broadcast message 13 of CSG sub-district 1 transmission, compare with the PRB that oneself uses, judge whether to have used these overloads PRB.If UE8 has used these overloads PRB, then execution in step 504.
Step 504:UE8 sends report or indication to 4 base stations, CSG sub-district, and request is fallen and disturbed or the resource of adjusting frequency.
Step 505: jamming countermeasure is taked to fall to UE8 after receiving the report or Indication message of UE8 transmission in CSG sub-district, adjacent area 4, to the frequency resource that power or adjustment UE8 fall in UE8, avoids using the PRB that overload takes place on the CSG sub-district 1.The processing of the similar CSG of the processing of other adjacent areas sub-district 4.
By this embodiment, realized the ICIC indication information being sent to abutting subdistrict by UE transfer system broadcast message.
Device embodiment
Embodiment one
According to embodiments of the invention, a kind of dispensing device of ICIC indication information is provided, be arranged in the sub-district, this dispensing device can be used to realize the sending method of above-mentioned inter cell interference coordination ICIC indication information, this dispensing device comprises: sending module, be used for sending the ICIC indication information by air interface to its abutting subdistrict, wherein, the ICIC indication information is used to realize the ICIC algorithm function.
Wherein, the information content of above-mentioned ICIC indication information comprises one of following at least: the information of the information of the information of OI, the information of HII, RNTP, default (redetermination).
Above-mentioned ICIC indication information can carry by one of following signaling: Radio Resource control (Radio Resource Control, abbreviate RRC as) layer signaling, medium access control (Media Access Control abbreviates MAC as) layer signaling, physical layer signaling.Wherein, the rrc layer signaling can be system broadcast message, and physical layer signaling can adopt predetermined running time-frequency resource position, so that UE receives.
Wherein, above-mentioned sub-district and/or abutting subdistrict can comprise one of following: CSG sub-district, macrocell.
By this embodiment, dispensing device sends the ICIC indication information by air interface to its abutting subdistrict, and then has realized the transmission of Home eNodeB to the ICIC indication information.
Embodiment two
According to embodiments of the invention, a kind of receiving system of ICIC indication information is provided, be arranged in the sub-district, this receiving system can be used in combination with the dispensing device of above-mentioned ICIC indication information, this receiving system comprises: receiver module, be used for by the ICIC indication information of air interface reception from its abutting subdistrict, wherein, the ICIC indication information is used to realize the ICIC algorithm function.
Wherein, the information content of above-mentioned ICIC indication information comprises one of following at least: the information of the information of the information of OI, the information of HII, RNTP, default (redetermination).
Above-mentioned ICIC indication information can carry by one of following signaling: Radio Resource control (Radio Resource Control, abbreviate RRC as) layer signaling, medium access control (Media Access Control abbreviates MAC as) layer signaling, physical layer signaling.Wherein, the rrc layer signaling can be system broadcast message, and physical layer signaling can adopt predetermined running time-frequency resource position, so that UE receives.
Wherein, above-mentioned sub-district and/or abutting subdistrict can comprise one of following: CSG sub-district, macrocell.
By this embodiment, receiving system receives ICIC indication information from its abutting subdistrict by air interface, and then has realized the transmission of Home eNodeB to the ICIC indication information.
In sum, pass through the above embodiment of the present invention, adopt the method for transmitting the ICIC indication information between the sub-district by air interface, solved Home eNodeB in the correlation technique and can't not realize the problem that the ICIC indication information transmits, and then realized the transmission of Home eNodeB the ICIC indication information owing to there is X2 interface.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. the sending method of an inter cell interference coordination ICIC indication information is characterized in that, comprising:
A sub-district sends the ICIC indication information by air interface to its abutting subdistrict, and wherein, described ICIC indication information is used to realize the ICIC algorithm function.
2. method according to claim 1 is characterized in that, described sub-district sends described ICIC indication information by described air interface to described abutting subdistrict and comprises:
Described sub-district by described air interface via described abutting subdistrict is sent described ICIC indication information as the subscriber equipment of Serving cell to described abutting subdistrict.
3. method according to claim 2 is characterized in that, after described subscriber equipment receives described ICIC indication information and before described abutting subdistrict sends described ICIC indication information, described method also comprises:
Described subscriber equipment judges whether that according to described ICIC indication information needs carry out the ICIC algorithm process, is under the situation that is in judged result, sends the ICIC indication information to described abutting subdistrict.
4. ICIC indication information according to claim 3 is characterized in that, described subscriber equipment judges whether that according to described ICIC indication information needs carry out described ICIC algorithm process and comprise:
Whether needs carry out described ICIC algorithm process to described subscriber equipment according to the resource judgment that self whether takies generation interference indicated in the described ICIC indication information.
5. ICIC indication information according to claim 3 is characterized in that, the ICIC indication information relevant with self sends to described abutting subdistrict in the described ICIC indication information that described subscriber equipment will receive.
6. according to each described method in the claim 2 to 5, it is characterized in that described subscriber equipment is the subscriber equipment that is in the described abutting subdistrict and possesses the ability of the message that receives described sub-district.
7. according to each described method in the claim 1 to 5, it is characterized in that, in described sub-district by described air interface after described abutting subdistrict sends described ICIC indication information, described method also comprises:
Described abutting subdistrict receives the described ICIC indication information from described sub-district,
And carry out the ICIC algorithm process according to described ICIC indication information.
8. according to each described method in the claim 1 to 5, it is characterized in that it is one of following that the information content of described ICIC indication information comprises at least:
The information of the information of the information of overload indication, strong jamming indication, Relative Narrowband TX Power indication, the ICIC indication information of redetermination, wherein, the ICIC indication information of described redetermination serves as the indication unit with a plurality of Physical Resource Block or frequency range.
9. according to each described method in the claim 1 to 5, it is characterized in that it is one of following that described sub-district and/or described abutting subdistrict comprise:
Non-public authorized user group CSG sub-district, macrocell.
10. according to each described method in the claim 1 to 5, it is characterized in that described ICIC indication information carries by one of following signaling:
Radio resource control layer signaling, media access control layer signaling, physical layer signaling.
11. method according to claim 10 is characterized in that, described radio resource control layer signaling is a system broadcast message, and described physical layer signaling adopts predetermined running time-frequency resource position.
12. the dispensing device of an ICIC indication information is arranged in the sub-district, it is characterized in that, comprising:
Sending module is used for sending ICIC by air interface to its abutting subdistrict and refers to
Show information, wherein, described ICIC indication information is used to realize the ICIC algorithm function.
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| KR100765892B1 (en) * | 2006-08-30 | 2007-10-10 | 주식회사 팬택 | Method of controlling inter-cell interference for a mobile communication system |
| CN101202974B (en) * | 2006-12-15 | 2011-09-28 | 华为技术有限公司 | System, base station and method for multi-standard base station intercommunication |
| CN101369831B (en) * | 2007-08-16 | 2012-05-23 | 中兴通讯股份有限公司 | Restraint method and system for interference between cells |
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