CN101795471B - ICIC (Inter-cell interference co-ordination) parameter transmission method and resource distribution method, device and system - Google Patents
ICIC (Inter-cell interference co-ordination) parameter transmission method and resource distribution method, device and system Download PDFInfo
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- H04W72/20—Control channels or signalling for resource management
- H04W72/27—Control channels or signalling for resource management between access points
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
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Abstract
The invention discloses an ICIC parameter transmission method of a long-term evolution multi-carrier system, comprising the following steps of: determining the load and the interference conditions of all carriers or carrier sets in cells; and transmitting service cell information to each neighboring cell, wherein the service cell information carries cell identifications and carrier or carrier set identifications and indicates the ICIC parameters of the load or the interference conditions of the carriers or the carrier sets corresponding to the carrier or carrier set identifications. The invention also discloses a carrier resource distribution method of the long-term evolution multi-carrier system, and a device and a system for realizing the two methods. The invention makes the transmission method of the ICIC parameters in the long-term evolution multi-carrier system clear and can distinguish a plurality of member carriers or carrier sets with same cell identifications through the mode of endowing each member carrier or carrier set with different identifications (such as numbers), thereby ensuring that the ICIC parameters between a source cell and a target cell can be smoothly transmitted.
Description
Technical field
The present invention relates to communication technical field, more particularly, relate to interference coordination between a kind of Long Term Evolution (LTE) multicarrier wave system cell (Inter-cell Interference Co-ordination, ICIC) parameter transmission method and carrier wave resource allocation method, device and system.
Background technology
In the LTE system, because uplink is single carrier, high interference indication (High InterferenceIndication, HII) and two parameters of overload indication (Overload Indication, OI) can provide based on cell ID corresponding to carrier wave (Cell ID) respectively.But for long-term evolution multi-carrier system, some has the terminal of high ability energy level, its uplink will be limited by single carrier no longer, be that uplink may take a plurality of member carriers, if the cell ID of a plurality of member carriers is different, then processing mode and existing LTE standard are similar, if and cell ID is identical, then need each member carrier or carrier wave set are indicated respectively to realize the mutual of ICIC parameter, and, along with increasing of corresponding member carrier quantity, need high level further to plan how rationally corresponding distribution.
Summary of the invention
In view of this, the invention provides a kind of long-term evolution multi-carrier system Inter-Cell Interference Coordination parameter transmission method and carrier wave resource allocation method, device and system, solve the cell ID of a plurality of member carriers when identical how to the problem of each carrier wave indication HII and OI, realize the ICIC transmission, and carrier resource is carried out reasonable distribution.
A kind of long-term evolution multi-carrier system Inter-Cell Interference Coordination ICIC parameter transmission method comprises:
Determine load and the disturbance regime of all carrier waves in the cell-of-origin or carrier wave set;
Send service cell information to each adjacent cell, this service cell information is carried cell ID, carrier wave or carrier wave set sign and is indicated described carrier wave or corresponding carrier wave or the load of carrier wave set or the ICIC parameter of disturbance regime of carrier wave set sign.
Preferably, in the said method, described carrier identification is carrier index.
Preferably, in the said method, send service cell information to each adjacent cell and be specially: determine existing carrier wave or the carrier wave set of each adjacent cell, send service cell information for each existing carrier wave or carrier wave set.
Preferably, in the said method, existing carrier wave or the carrier wave set of determining each adjacent cell are specially: the high level notice that the configuration information that sends by X2 interface according to adjacent cell, the parameter in the Operation and Maintenance process, adjacent cell broadcast message that UE reports or UE report, determine existing carrier wave or the carrier wave set of described adjacent cell.
Preferably, in the said method, send service cell information to each adjacent cell and be specially: for cell-of-origin each existing carrier wave or carrier wave set, send service cell information.
Preferably, in the said method, in the described cell-of-origin in the carrier index of each carrier wave or carrier wave set and each adjacent cell the carrier index of corresponding carriers or carrier wave set identical.
Simultaneously, the embodiment of the invention also discloses carrier wave resource allocation method in a kind of long-term evolution multi-carrier system, comprising:
Adjacent cell receives the service cell information from the cell-of-origin, and this service cell information is carried the load of cell ID, carrier wave or indication carrier wave group sign and carrier wave or carrier wave set and the ICIC parameter of disturbance regime;
Indicating this carrier wave or carrier wave set when described ICIC parameter disturbs large or load when overweight, determine corresponding carriers or carrier wave set in this residential quarter, and dividing timing to cell edge terminal distribution carrier resource, other carrier waves described in this residential quarter of priority allocation outside the corresponding carriers.
Preferably, in the said method, described carrier wave or carrier wave set are designated carrier index.
Preferably, in the said method, the numbering of each carrier wave is arranged from low to high or from high to low according to center frequency point in each residential quarter, and corresponding carriers or carrier wave set in described definite this residential quarter are specially: determine that carrier index is numbered identical carrier wave or carrier wave set with carrier wave or carrier wave set in the described service cell information in this residential quarter.
Preferably, in the said method, corresponding carriers or carrier wave set in described definite this residential quarter are specially:
The high level notice that the configuration information that sends by X2 interface according to adjacent cell, the parameter in the Operation and Maintenance process, adjacent cell broadcast message that UE reports or UE report, determine in this residential quarter the corresponding relation of each carrier wave in each carrier wave and described adjacent cell or carrier wave set numbering, and according to this corresponding relation, determine with described service cell information in carrier wave or carrier wave set number corresponding carrier wave or carrier wave set.
The embodiment of the invention also provides a kind of long-term evolution multi-carrier system Inter-Cell Interference Coordination ICIC parameter transmission device simultaneously, comprising:
Carrier wave situation determining unit is for load and the disturbance regime of determining all carrier waves of cell-of-origin or carrier wave set;
The service cell information transmitting element, be used for sending service cell information to each adjacent cell, this service cell information is carried cell ID, carrier wave or carrier wave set sign and is indicated described carrier wave or corresponding carrier wave or the load of carrier wave set or the ICIC parameter of disturbance regime of carrier wave set sign.
Preferably, in the said apparatus, described carrier identification is carrier index.
Preferably, in the said apparatus, described service cell information transmitting element to the concrete mode that each adjacent cell sends service cell information is: receive from the notice of high level or from the broadcast message of adjacent cell, determine existing carrier wave or the carrier wave set of described adjacent cell according to described notice or broadcast message, send service cell information for each existing carrier wave or carrier wave set.
Preferably, in the said apparatus, described service cell information transmitting element sends the concrete mode of service cell information to each adjacent cell and is: for cell-of-origin each existing carrier wave or carrier wave set, send service cell information.
Preferably, in the said apparatus, the numbering of each carrier wave is all arranged from low to high or from high to low according to center frequency point in described cell-of-origin and the adjacent cell, in the described cell-of-origin in the carrier index of each carrier wave or carrier wave set and each adjacent cell the carrier index of corresponding carriers or carrier wave set identical.
The embodiment of the invention also discloses carrier resource distributor in a kind of long-term evolution multi-carrier system simultaneously, comprising:
The service cell information receiving element is used for receiving the service cell information from the cell-of-origin, and this service cell information is carried the load of cell ID, carrier wave or indication carrier wave group sign and carrier wave or carrier wave set and the ICIC parameter of disturbance regime;
The carrier wave determining unit is used for indicating this carrier wave or carrier wave set when described ICIC parameter and disturbs greatly or load when overweight, determines corresponding carriers or carrier wave set in this residential quarter;
Carrier assigning unit is being divided timing to cell edge terminal distribution carrier resource, other carrier waves described in this residential quarter of priority allocation outside the corresponding carriers.
Preferably, in the said apparatus, described carrier wave or carrier wave set are designated carrier index.
Preferably, in the said apparatus, the numbering of each carrier wave is arranged from low to high or from high to low according to center frequency point in described this residential quarter and the cell-of-origin, and described carrier wave determining unit determines that corresponding carriers or the concrete mode of carrier wave set in this residential quarter is: determine that carrier index is numbered identical carrier wave or carrier wave set with carrier wave or carrier wave set in the described service cell information in this residential quarter.
Preferably, in the said apparatus, the numbering of each carrier wave has corresponding relation in described this residential quarter and the cell-of-origin, and the information that is used to indicate described corresponding relation is carried in the high level notice that configuration information that adjacent cell sends by X2 interface, the parameter in the Operation and Maintenance process, adjacent cell broadcast message that UE reports or UE report.
In addition, the embodiment of the invention also provides a kind of communication system, comprise terminal and base station, described base station has interference coordination ICIC parameter transmission device, described ICIC parameter transmission device is used for: load and the disturbance regime of determining all carrier waves of cell-of-origin or carrier wave set, and sending service cell information to each adjacent cell of described cell-of-origin, this service cell information is carried cell ID, carrier wave or carrier wave set sign and is indicated described carrier wave or corresponding carrier wave or the load of carrier wave set and the ICIC parameter of disturbance regime of carrier wave set sign.
In addition, the embodiment of the invention also provides another kind of communication system, comprise terminal and base station, described base station has the carrier resource distributor, described carrier resource distributor is used for: receive the service cell information from the cell-of-origin, this service cell information is carried the load of cell ID, carrier wave or indication carrier wave group sign and carrier wave or carrier wave set and the ICIC parameter of disturbance regime; And,
Indicate this carrier wave or carrier wave set when described ICIC parameter and disturb large or load when overweight, determine corresponding carriers or carrier wave set in this residential quarter; And,
And dividing timing to cell edge terminal distribution carrier resource, other carrier waves described in this residential quarter of priority allocation outside the corresponding carriers.
Can find out from above-mentioned technical scheme, the embodiment of the invention is clear and definite in long-term evolution multi-carrier system, the transmission method of OI and HII parameter, the embodiment of the invention is clear and definite in the long-term evolution multi-carrier system, the transmission method of ICIC parameter, can be distinguished cell ID identical a plurality of member carriers or carrier wave set by the mode of each member carrier or carrier wave set being given different identification (such as numbering), thereby so that the ICIC parameter between cell-of-origin and the Target cell can be transmitted smoothly, therefore Target cell also can understand load or the disturbance regime of each carrier wave or carrier wave set, thereby can carry out reasonable distribution to carrier resource.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is that the prior art neighbor cell is by the schematic diagram of X2 interface transmission OI and HII;
The flow chart of a kind of long-term evolution multi-carrier system Inter-Cell Interference Coordination parameter transmission method that Fig. 2 provides for the embodiment of the invention;
Fig. 3 is in the embodiment of the invention, when the carrier wave of cell-of-origin and Target cell or the carrier wave set numbering is identical and carrier wave or carrier wave set quantity when equating, the schematic diagram of transmission ICIC parameter;
Fig. 4 is in the embodiment of the invention, when the number of carriers of cell-of-origin during greater than the number of carriers of adjacent cell, according to the schematic diagram of cell-of-origin in carrier wave or carrier wave set transmission ICIC parameter;
Fig. 5 is in the embodiment of the invention, when the number of carriers of cell-of-origin during greater than the number of carriers of adjacent cell, according to the schematic diagram of Target cell in carrier wave or carrier wave set transmission ICIC parameter;
Fig. 6 is in the embodiment of the invention, when the number of carriers of cell-of-origin during less than the number of carriers of adjacent cell, and the schematic diagram of transmission ICIC parameter;
Fig. 7 is in the embodiment of the invention, transmits the schematic diagram of ICIC parameter according to the corresponding relation of the carrier index of same carrier wave in cell-of-origin and this residential quarter;
Fig. 8 is in the embodiment of the invention, and is different with the carrier index mode of same carrier wave in the adjacent cell in the cell-of-origin, and when not having high-rise notice or adjacent cell broadcast message, the schematic diagram of transmission ICIC parameter;
Fig. 9 is in the embodiment of the invention, when the cell-of-origin is identical with the carrier index mode of same carrier wave group in the adjacent cell, and the schematic diagram of transmission ICIC parameter;
The flow chart of carrier wave resource allocation method in a kind of long-term evolution multi-carrier system that Figure 10 provides for the embodiment of the invention;
The structural representation of ICIC parameter transmission device in a kind of long-term evolution multi-carrier system that Figure 11 provides for the embodiment of the invention;
The structural representation of carrier resource distributor in a kind of long-term evolution multi-carrier system that Figure 12 provides for the embodiment of the invention.
Embodiment
For present LTE, because lower behavior OFDM (Orthogonal FrequencyDivision Multiplexing, OFDM) mode, upper behavior single carrier orthogonal frequency division multiplexing (SingleCarrier-Orthogonal Frequency Division Multiplexing, SC-OFDM), presence of intercell interference is main interference.And with code division multiple access (Code Division Multiple, CDMA) system realizes that with soft capacity identical networking is different, LTE can't directly realize identical networking, therefore how to reduce presence of intercell interference and realizes that identical networking is called subject matter of LTE.Prior art has several different methods can eliminate the interference of minizone: transmitting terminal wave beam forming and interference rejection merge (Interference RejectionCombining, IRC), ICIC, power control and bit-level scrambling.
Wherein: the implementation of ICIC mainly by resource limitation is realized, is mainly divided the restriction of frequency resource limitation and power resource.In up ICIC mode, need to have determined among the LTE at present to transmit HII and two parameters of OI (as shown in Figure 1) by X2 interface to Target cell, in descending ICIC mode, needed to transmit HII.HII and OI provide as granularity with each PRB, the purpose of transmitting these two parameters is in advance this residential quarter to be caused the PRB sign notice adjacent cell of interference to adjacent cell, so that described adjacent cell can avoid using these PRB to the UE that is in cell edge after receiving this described parameter as far as possible, to reach the purpose of the SINR that improves cell edge UE, improve the Cell Edge User throughput.
Particularly, the purpose of this parameter of transmission OI is to understand service district for Target cell to have disturbed excessive problem in up link, namely will to be expressed as load to this PRB when strong overweight when the PRB of service district disturbed, and then is delivered to Target cell by X2 interface.Thus, Target cell can recognize that service district PRB disturbs overweight situation, then can further carry out corresponding operating, for example the corresponding PRB in this residential quarter is reduced power or stops using described PRB.And the HII parameter is to cause the excessive problem of disturbing in order to prevent in advance owing to service district and Target cell PRB distribution conflict, that is: when service district and Target cell find that some PRB use meeting of this residential quarter causes higher interference to other residential quarters, corresponding HII is sent these described other residential quarters by X2 interface, can avoid in advance causing this residential quarter (namely receiving the residential quarter of this information) PRB of high interference so that receive the residential quarter of this information thus, perhaps, the PRB that might cause high interference is distributed to the UE of inside, residential quarter.
In the LTE standard, in service cell information, corresponding to cell ID, OI and HII parameter are presented, specifically referring to 36.423.9.1.2.1.
But in LTE multicarrier system, system carrier is the polymerization of a plurality of member carriers (continuous or discontinuous), and in this case, prior art does not provide clear and definite, definite feasible ICIC interactive mode.
The present invention is based on this situation, a kind of concrete, feasible ICIC interaction schemes for LTE multicarrier system is provided, prior art is made effective function replenish.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The embodiment of the invention discloses a kind of long-term evolution multi-carrier system Inter-Cell Interference Coordination parameter (OI and HII) transmission method, for the identical situation of the cell ID of a plurality of member carriers in the residential quarter, this method is distinguished by specific mode, specific works is finished by eNB, the course of work may further comprise the steps as shown in Figure 2:
Step S21, determine load state and the disturbance regime of all carrier waves in the residential quarter, UE place (cell-of-origin).
Step S22, send service cell information to each adjacent cell, this service cell information is carried cell ID, carrier identification and ICIC parameter (OI and HII namely indicate the load state of carrier wave corresponding to described carrier identification and the information of disturbance regime).
Described carrier identification can be carrier index, and the carrier index of carrier wave is according to from low to high or from high to low arranged sequentially of center frequency point in cell-of-origin and the adjacent cell (Target cell), and the carrier index of same carrier wave is also identical in cell-of-origin and the adjacent cell.Among the above-mentioned steps S22, the mode that sends service cell information can be: for each adjacent cell (Target cell), corresponding each member carrier sends service cell information one by one, as shown in Figure 3, wherein, 0,1, ..., 4 is carrier identification, corresponding Target cell 1, Target cell 2 or Target cell 3, with member carrier 0,1 ..., 4 carrier wave situation is one by one.
If the cell-of-origin is different with number of carriers in the adjacent cell, such as the number of carriers of the cell-of-origin number of carriers greater than adjacent cell, perhaps the number of carriers of cell-of-origin is less than the number of carriers of adjacent cell.When the number of carriers of cell-of-origin during greater than the number of carriers of adjacent cell, among the above-mentioned steps S22, the mode that sends service cell information can have two kinds, a kind of is to send one by one service cell information according to each member carrier in the cell-of-origin, as shown in Figure 4, another kind is only to send one by one service cell information for the existing carrier wave of adjacent cell, as shown in Figure 5.For front a kind of mode, adjacent cell can be ignored its service cell information that receives.And when the number of carriers of cell-of-origin during less than the number of carriers of adjacent cell, then send one by one service cell information according to each member carrier in the cell-of-origin, that is to say, in the adjacent cell with the cell-of-origin in the ICIC parameter of not corresponding member carrier will be left in the basket, such as the carrier wave 5 in the Target cell among Fig. 61.
Need to prove, the carrier index of same carrier wave also can be different in cell-of-origin and the adjacent cell, at this moment, adjacent cell is after receiving service cell information, can determine according to the information that obtains in advance the corresponding relation of the carrier index of same carrier wave in cell-of-origin and this residential quarter, as shown in Figure 7, carrier wave 2, carrier wave 0 and the carrier wave 1 in the carrier wave in the cell-of-origin 0, carrier wave 2 and the corresponding adjacent cell of carrier wave 4 difference.The described information that obtains in advance comprises: the high level notice that the configuration information that adjacent cell sends by X2 interface, the parameter in the Operation and Maintenance process, adjacent cell broadcast message that UE reports or UE report.
In addition, different with the carrier index mode of same carrier wave in the adjacent cell in the cell-of-origin, and when not having high-rise notice or adjacent cell broadcast message, all carrier waves of member carrier scanning adjacent cell that can corresponding cell-of-origin, as shown in Figure 8, in fact, the mutual OI of corresponding carrier wave and HII is very little or basic not impact (if the complete non-conterminous words of frequency range).
In addition, cell-of-origin and Target cell can also be done the correspondence of carrier wave set, described carrier wave set comprises a plurality of carrier waves, in cell-of-origin and Target cell, the sign of same carrier wave group is identical, and in the present embodiment, the carrier wave set that is designated of carrier wave set is numbered, carry cell ID, carrier wave set numbering and ICIC parameter to the service cell information that each adjacent cell sends, mode and above-described embodiment are similar.Fig. 9 shows a kind of object lesson, the carrier wave 0 of cell-of-origin, carrier wave 1 and carrier wave 2 component carrier groups 1, and carrier wave 3, carrier wave 4 component carrier groups 2, the send mode of service cell information sends one by one for each carrier wave set of cell-of-origin.
In the various embodiments described above, the scope of the numbering of carrier wave or carrier wave set is from 1 carrier wave or carrier wave number to maximum, this also is the scope of the carrier index of carrying in the service cell information, in interface (X2) agreement of base station, a part of particular content of service cell information (other parts are same as the prior art) can be as shown in the table in the base station:
Table 1
| IE/Group Name | Presence | Range | IEtype and reference | Semantics description | Criticality | Assigned Criticality |
| Message Type | M | 9.2.13 | YES | ignore |
| Cell Information | M | YES | ignore | |||
| ＞Cell InformationItem | 1to maxCelline NB | EACH | ignore | |||
| ＞＞Cell ID | M | ECGI 9.2.14 | Id of thesource cell | - | - | |
| ＞＞SourceComponent CarrierItem | 0to maxCompo nentCarrier | |||||
| The SourceComponent Carriernumber of＞＞＞(cell-of-origin member carrier numbering) | O | 9.2.17a | Thenumber ofsourceComponentcarrer | |||
| ＞＞＞UL InterferenceOverload Indication | O | 9.2.17 | - | - | ||
| ＞＞＞UL HighInterferenceInformation | 0to maxCelline NB | - | - | |||
| ＞＞＞＞UL HighInterferenceIndication | M | 9.2.18 | - | - | ||
| ＞＞＞＞Target Cell ID | M | ECGI 9.2.14 | Id of thecell forwhich theHII ismeant | - | - | |
| ＞＞＞＞＞TargetComponent carriernumber (Target cell member carrier numbering) | O | 9.2.18a | Thenumber oftargetComponentcarrier |
Wherein, 9.2.13, ECGI 9.2.14,9.2.17a ... refer to consensus standard (particular content can be with reference to relevant documentation, and this paper is not described in detail), M refers to essential option, and O refers to option.
If in long-term evolution multi-carrier system, OI and HII parameter need cell-of-origin and Target cell corresponding one by one in tomorrow requirement, then need to add cell-of-origin and Target cell member carrier numbering in service cell information.Detailed process can be: service cell information Serial Number Range maximum residential quarter number from 1 to eNB, for each cell ID, with this cell ID as the Serial Number Range of the carrier wave of cell-of-origin from 1 carrier wave or carrier wave set number to maximum.In interface (X2) agreement of base station, a part of particular content of service cell information (other parts are same as the prior art) can be as shown in the table in the base station:
Table 2
| IE/Group Name | Presence | Range | IE type and reference | Semantics descriptio n | Criticality | Assigned Criticality |
| Message Type | M | 9.2.13 | YES | ignore | ||
| Cell Information | M | YES | ignore | |||
| ＞Cell InformationItem | 1to maxCellineN B | EACH | ignore | |||
| ＞＞Cell ID | M | ECGI 9.2.14 | Id of the source cell | - | - | |
| ＞＞SourceComponent CarrierItem | 0to maxSourceC omponentCa rrier | |||||
| ＞＞＞SourceComponent Carriernumber | O | 9.2.17a | ||||
| ＞＞Target Componentcarrier Item | 0to maxSourceC omponentCa rrier | |||||
| ＞＞＞TargetComponent carriernumber | O | 9.2.18a |
The embodiment of the invention is clear and definite in long-term evolution multi-carrier system, the transmission method of OI and HII parameter, for cell ID identical a plurality of member carriers or carrier wave set, can distinguish by the mode of each member carrier or carrier wave set being given different identification (such as numbering), so that the OI between cell-of-origin and the Target cell and HII parameter can be transmitted smoothly.
In addition, for above-mentioned long-term evolution multi-carrier system Inter-Cell Interference Coordination parameter (OI and HII) transmission method, the embodiment of the invention also provides carrier wave resource allocation method in a kind of long-term evolution multi-carrier system, and detailed process may further comprise the steps as shown in figure 10:
Step S101, receive the service cell information from adjacent cell, this service cell information is carried cell ID, carrier wave or carrier wave set sign and ICIC parameter (OI and HII).
Step S102, indicate this carrier wave or carrier wave set when described ICIC parameter and disturb large or load when overweight, determine corresponding carriers or carrier wave set in this residential quarter.
Step S103, dividing timing to cell edge terminal distribution carrier resource, other carrier waves described in this residential quarter of priority allocation outside the corresponding carriers.
Owing to cell edge terminal distribution carrier resource the time, avoiding to cause high interference or the heavier carrier resource of load, therefore, can improve signal to noise ratio and the throughput of cell edge residential quarter.
Carrier wave in the present embodiment or carrier wave set sign can be carrier wave or carrier wave set numbering.
For cell ID identical a plurality of member carriers or carrier wave set, can distinguish each carrier wave or carrier wave set by the numbering of carrier wave or carrier wave set.
The concrete form of described service cell information and related content can with reference to the content of preamble Inter-Cell Interference Coordination parameter transmission method, not repeat them here.
In addition, the embodiment of the invention also provides long-term evolution multi-carrier system Inter-Cell Interference Coordination ICIC parameter transmission device, and its structure comprises as shown in figure 11: carrier wave situation determining unit 111 and service cell information transmitting element 112.
Carrier wave situation determining unit 111 is for load and the disturbance regime of determining all carrier waves of cell-of-origin or carrier wave set; Service cell information transmitting element 112, be used for sending service cell information to each adjacent cell, this service cell information is carried cell ID, carrier wave or carrier wave set sign and is indicated described carrier wave or corresponding carrier wave or the load of carrier wave set or the ICIC parameter of disturbance regime of carrier wave set sign.
Described carrier identification is carrier wave or carrier wave set numbering, the carrier wave of described cell-of-origin and Target cell or the numbering of carrier wave set can be the same, service cell information transmitting element 112 sends the concrete mode of service cell information to each adjacent cell: for cell-of-origin each existing carrier wave or carrier wave set, send service cell information.Certainly, the carrier wave of described cell-of-origin and Target cell or the numbering of carrier wave set also can be the same, service cell information transmitting element 112 sends the concrete mode of service cell information to each adjacent cell: utilize the information that obtains in advance to determine existing carrier wave or the carrier wave set of described adjacent cell, send service cell information for each existing carrier wave or carrier wave set, the described information that obtains in advance comprises: the high level notice that the configuration information that adjacent cell sends by X2 interface, the parameter in the Operation and Maintenance process, adjacent cell broadcast message that UE reports or UE report.
The concrete form of described service cell information can with reference to the content of preamble ICIC parameter transmission method part, not repeat them here.
On the basis of above-described embodiment, the embodiment of the invention also provides carrier resource distributor in a kind of long-term evolution multi-carrier system, its structure comprises as shown in figure 12: service cell information receiving element 121, carrier wave determining unit 122 and carrier assigning unit 123; Wherein:
Service cell information receiving element 121 is used for receiving the service cell information from the cell-of-origin, and this service cell information is carried the load of cell ID, carrier wave or indication carrier wave group sign and carrier wave or carrier wave set and the ICIC parameter of disturbance regime.
Carrier wave determining unit 122 is used for indicating this carrier wave or carrier wave set when described ICIC parameter and disturbs greatly or load when overweight, determines corresponding carriers or carrier wave set in this residential quarter.
Carrier assigning unit 123 is being divided timing to cell edge terminal distribution carrier resource, other carrier waves described in this residential quarter of priority allocation outside the corresponding carriers.
Described carrier identification is carrier wave or carrier wave set numbering, the carrier wave of described cell-of-origin and Target cell or the numbering of carrier wave set can be the same, the numbering of each carrier wave is arranged from low to high or from high to low according to center frequency point in described this residential quarter and the cell-of-origin, and carrier wave determining unit 122 determines that corresponding carriers or the concrete mode of carrier wave set in this residential quarter are: determine that carrier index is numbered identical carrier wave or carrier wave set with carrier wave or carrier wave set in the described service cell information in this residential quarter; The carrier wave of described cell-of-origin and Target cell or the numbering of carrier wave set can be different, but have corresponding relation, the information that is used to indicate described corresponding relation is carried in the high level notice that configuration information that adjacent cell sends by X2 interface, the parameter in the Operation and Maintenance process, adjacent cell broadcast message that UE reports or UE report.
The concrete form of described service cell information and related content can with reference to the content of preamble ICIC parameter transmission method part, not repeat them here.
The embodiment of the invention also provides a kind of communication system, comprise terminal and base station, described base station has interference coordination ICIC parameter transmission device, described ICIC parameter transmission device is used for: load and the disturbance regime of determining all carrier waves of cell-of-origin or carrier wave set, and sending service cell information to each adjacent cell of described cell-of-origin, this service cell information is carried cell ID, carrier wave or carrier wave set sign and is indicated described carrier wave or corresponding carrier wave or the load of carrier wave set and the ICIC parameter of disturbance regime of carrier wave set sign.Particularly, the structure and composition of this ICIC parameter transmission device can be with reference to preamble long-term evolution multi-carrier system Inter-Cell Interference Coordination ICIC parameter transmission device content and Figure 11.
The embodiment of the invention also provides another kind of communication system, comprise terminal and base station, described base station has the carrier resource distributor, described carrier resource distributor is used for: receive the service cell information from the cell-of-origin, this service cell information is carried the load of cell ID, carrier wave or indication carrier wave group sign and carrier wave or carrier wave set and the ICIC parameter of disturbance regime; And, indicate this carrier wave or carrier wave set when described ICIC parameter and disturb large or load when overweight, determine corresponding carriers or carrier wave set in this residential quarter; And, and dividing timing to cell edge terminal distribution carrier resource, other carrier waves described in this residential quarter of priority allocation outside the corresponding carriers.
Described service cell information concrete form and related content can with reference to the content of preamble ICIC parameter transmission method part, not repeat them here.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and each embodiment stresses
All be difference with other embodiment, between each embodiment identical similar part mutually referring to
Get final product.For device, because itself and said method basic simlarity, so describe fairly simplely,
Relevant part partly illustrates referring to the preamble method and gets final product.
It will be understood by those skilled in the art that and to represent information, message and signal with many different techniques and in the technology any one.For example, the message of mentioning in the above-mentioned explanation, information can be expressed as voltage, electric current, electromagnetic wave, magnetic field or magnetic particle, light field or above combination in any.
The professional can also further recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software clearly is described, composition and the step of each example described in general manner according to function in the above description.These functions are carried out with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.The professional and technical personnel can specifically should be used for realizing described function with distinct methods to each, but this realization should not thought and exceeds scope of the present invention.
The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can directly use the software module of hardware, processor execution, and perhaps the combination of the two is implemented.Software module can place the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the present invention, in other embodiments realization.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (21)
1. a long-term evolution multi-carrier system Inter-Cell Interference Coordination ICIC parameter transmission method is characterized in that, comprising:
Determine load and the disturbance regime of all carrier waves in the cell-of-origin or carrier wave set;
Send service cell information to each adjacent cell, this service cell information is carried cell ID, carrier wave or carrier wave set sign and is indicated described carrier wave or corresponding carrier wave or the load of carrier wave set or the ICIC parameter of disturbance regime of carrier wave set sign.
2. the method for claim 1 is characterized in that, described carrier wave or carrier wave set are designated carrier index.
3. method as claimed in claim 2 is characterized in that, sends service cell information to each adjacent cell and is specially: determine existing carrier wave or the carrier wave set of each adjacent cell, send service cell information for each existing carrier wave or carrier wave set.
4. method as claimed in claim 3, it is characterized in that, existing carrier wave or the carrier wave set of determining each adjacent cell are specially: the high level notice that the configuration information that sends by X2 interface according to adjacent cell, the parameter in the Operation and Maintenance process, adjacent cell broadcast message that UE reports or UE report, determine existing carrier wave or the carrier wave set of described adjacent cell.
5. method as claimed in claim 2 is characterized in that, sends service cell information to each adjacent cell and is specially: for cell-of-origin each existing carrier wave or carrier wave set, send service cell information.
6. method as claimed in claim 2 is characterized in that, in the described cell-of-origin in the carrier index of each carrier wave or carrier wave set and each adjacent cell the carrier index of corresponding carriers or carrier wave set identical.
7. carrier wave resource allocation method in the long-term evolution multi-carrier system is characterized in that, comprising:
Adjacent cell receives the service cell information from the cell-of-origin, this service cell information is carried cell ID, carrier wave or carrier wave set sign, is reached the ICIC parameter, wherein, described ICIC is Inter-Cell Interference Coordination, and described ICIC parameter is used to indicate described carrier wave or the carrier wave of carrier wave set sign correspondence or load and the disturbance regime of carrier wave set;
Indicating this carrier wave or carrier wave set when described ICIC parameter disturbs large or load when overweight, determine corresponding carriers or carrier wave set in this residential quarter, and dividing timing to cell edge terminal distribution carrier resource, other carrier waves described in this residential quarter of priority allocation outside the corresponding carriers.
8. method as claimed in claim 7 is characterized in that, described carrier wave or carrier wave set are designated carrier index.
9. method as claimed in claim 8, it is characterized in that, the numbering of each carrier wave is arranged from low to high or from high to low according to center frequency point in each residential quarter, and corresponding carriers or carrier wave set in described definite this residential quarter are specially: determine that carrier index is numbered identical carrier wave or carrier wave set with carrier wave or carrier wave set in the described service cell information in this residential quarter.
10. method as claimed in claim 8 is characterized in that, corresponding carriers or carrier wave set in described definite this residential quarter are specially:
The high level notice that the configuration information that sends by X2 interface according to adjacent cell, the parameter in the Operation and Maintenance process, adjacent cell broadcast message that UE reports or UE report, determine in this residential quarter the corresponding relation of each carrier wave in each carrier wave and described adjacent cell or carrier wave set numbering, and according to this corresponding relation, determine with described service cell information in carrier wave or carrier wave set number corresponding carrier wave or carrier wave set.
11. a long-term evolution multi-carrier system Inter-Cell Interference Coordination ICIC parameter transmission device is characterized in that, comprising:
Carrier wave situation determining unit is for load and the disturbance regime of determining all carrier waves of cell-of-origin or carrier wave set;
The service cell information transmitting element, be used for sending service cell information to each adjacent cell, this service cell information is carried cell ID, carrier wave or carrier wave set sign and is indicated described carrier wave or corresponding carrier wave or the load of carrier wave set or the ICIC parameter of disturbance regime of carrier wave set sign.
12. device as claimed in claim 11 is characterized in that, described carrier wave or carrier wave set are designated carrier index.
13. device as claimed in claim 12, it is characterized in that, described service cell information transmitting element to the concrete mode that each adjacent cell sends service cell information is: receive from the notice of high level or from the broadcast message of adjacent cell, determine existing carrier wave or the carrier wave set of described adjacent cell according to described notice or broadcast message, send service cell information for each existing carrier wave or carrier wave set.
14. device as claimed in claim 12 is characterized in that, described service cell information transmitting element sends the concrete mode of service cell information to each adjacent cell and is: for cell-of-origin each existing carrier wave or carrier wave set, send service cell information.
15. device as claimed in claim 12, it is characterized in that, the numbering of each carrier wave is all arranged from low to high or from high to low according to center frequency point in described cell-of-origin and the adjacent cell, in the described cell-of-origin in the carrier index of each carrier wave or carrier wave set and each adjacent cell the carrier index of corresponding carriers or carrier wave set identical.
16. carrier resource distributor in the long-term evolution multi-carrier system is characterized in that, comprising:
The service cell information receiving element, be used for receiving the service cell information from the cell-of-origin, this service cell information is carried cell ID, carrier wave or carrier wave set sign, is reached the ICIC parameter, wherein, described ICIC is Inter-Cell Interference Coordination, and described ICIC parameter is used to indicate described carrier wave or the carrier wave of carrier wave set sign correspondence or load and the disturbance regime of carrier wave set;
The carrier wave determining unit is used for indicating this carrier wave or carrier wave set when described ICIC parameter and disturbs greatly or load when overweight, determines corresponding carriers or carrier wave set in this residential quarter;
Carrier assigning unit is being divided timing to cell edge terminal distribution carrier resource, other carrier waves described in this residential quarter of priority allocation outside the corresponding carriers.
17. device as claimed in claim 16 is characterized in that, described carrier wave or carrier wave set are designated carrier index.
18. device as claimed in claim 17, it is characterized in that, the numbering of each carrier wave is arranged from low to high or from high to low according to center frequency point in described this residential quarter and the cell-of-origin, and described carrier wave determining unit determines that corresponding carriers or the concrete mode of carrier wave set in this residential quarter is: determine that carrier index is numbered identical carrier wave or carrier wave set with carrier wave or carrier wave set in the described service cell information in this residential quarter.
19. device as claimed in claim 17, it is characterized in that, the numbering of each carrier wave has corresponding relation in described this residential quarter and the cell-of-origin, and the information that is used to indicate described corresponding relation is carried in the high level notice that configuration information that adjacent cell sends by X2 interface, the parameter in the Operation and Maintenance process, adjacent cell broadcast message that UE reports or UE report.
20. communication system, comprise terminal and base station, it is characterized in that, described base station has interference coordination ICIC parameter transmission device, described ICIC parameter transmission device is used for: load and the disturbance regime of determining all carrier waves of cell-of-origin or carrier wave set, and sending service cell information to each adjacent cell of described cell-of-origin, this service cell information is carried cell ID, carrier wave or carrier wave set sign and is indicated described carrier wave or corresponding carrier wave or the load of carrier wave set and the ICIC parameter of disturbance regime of carrier wave set sign.
21. communication system, comprise terminal and base station, it is characterized in that, described base station has the carrier resource distributor, described carrier resource distributor is used for: receive the service cell information from the cell-of-origin, this service cell information is carried cell ID, carrier wave or carrier wave set sign, is reached the ICIC parameter, wherein, described ICIC is Inter-Cell Interference Coordination, and described ICIC parameter is used to indicate described carrier wave or the carrier wave of carrier wave set sign correspondence or load and the disturbance regime of carrier wave set; And,
Indicate this carrier wave or carrier wave set when described ICIC parameter and disturb large or load when overweight, determine corresponding carriers or carrier wave set in this residential quarter; And,
And dividing timing to cell edge terminal distribution carrier resource, other carrier waves described in this residential quarter of priority allocation outside the corresponding carriers.
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| CN200910077906.2A CN101795471B (en) | 2009-02-03 | 2009-02-03 | ICIC (Inter-cell interference co-ordination) parameter transmission method and resource distribution method, device and system |
| PCT/CN2010/070488 WO2010088854A1 (en) | 2009-02-03 | 2010-02-03 | Method for inter-cell interference co-ordination parameter transmission and method, device and system for resource allocation |
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| CN200910077906.2A CN101795471B (en) | 2009-02-03 | 2009-02-03 | ICIC (Inter-cell interference co-ordination) parameter transmission method and resource distribution method, device and system |
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| CN102017682B (en) * | 2009-04-17 | 2013-08-07 | 华为技术有限公司 | Downlink inter-cell interference coordination method and base station |
| WO2012019366A1 (en) * | 2010-08-13 | 2012-02-16 | 富士通株式会社 | Base station on the basis of orthogonal frequency division multiplexing scheme and interference coordination method thereof |
| CN102387525B (en) * | 2010-08-27 | 2015-04-22 | 中国移动通信集团公司 | Carrier wave configuring method, device and system |
| US9031591B2 (en) * | 2010-11-17 | 2015-05-12 | Futurewei Technologies, Inc. | System and method for self-optimized inter-cell interference coordination |
| CN102149099B (en) * | 2011-04-08 | 2014-02-12 | 电信科学技术研究院 | Method and device for coordinating inter-cell interference |
| CN102761949B (en) * | 2011-04-28 | 2015-06-17 | 华为技术有限公司 | Power adjusting method and device, central node controller and access network node |
| CN102209351B (en) * | 2011-05-20 | 2016-07-06 | 中兴通讯股份有限公司 | Multi-carrier forward data distribution method, device and system |
| HUE034879T2 (en) * | 2011-07-22 | 2018-03-28 | Intel Corp | Inter-cell interference coordination in wireless networks |
| CN104094635A (en) * | 2012-05-10 | 2014-10-08 | 富士通株式会社 | Operating carrier interference coordination method and base station |
| CN103905346B (en) * | 2012-12-28 | 2017-11-17 | 华为技术有限公司 | A kind of method and apparatus of interference signal processing |
| GB2509910B (en) | 2013-01-16 | 2019-02-20 | Sony Corp | Telecommunications apparatus and methods |
| CN104080089B (en) * | 2013-03-28 | 2018-03-16 | 电信科学技术研究院 | Operating carriers select and information uploading method and equipment |
| CN104519504A (en) * | 2013-09-26 | 2015-04-15 | 中兴通讯股份有限公司 | Interference coordination parameter transmission method and apparatus, and interference coordination method and apparatus |
| CN105450565B (en) | 2014-09-26 | 2019-05-14 | 中国移动通信集团公司 | The interference of network assistance formula is deleted and inhibition and its control method, device |
| CN108293209B (en) * | 2016-04-18 | 2021-01-29 | 华为技术有限公司 | Interference coordination method, base station and user equipment |
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