CN102104965A - Method and device for coordinating inter-cell interference, and network node - Google Patents
Method and device for coordinating inter-cell interference, and network node Download PDFInfo
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Abstract
The invention discloses a method for coordinating inter-cell interference, which comprises the following steps of: interactively loading resource information of a physical downlink control channel (PDCCH) of system information block (SIB)/Paging scheduling information and sending the resource information of a physical downlink shared channel (PDSCH) of the SIB/Paging between network nodes of a strong-interference cell and an adjacent cell; and carrying out coordinative scheduling on corresponding physical resources by using the network nodes of the strong-interference cell or the neighbor cell according to the obtained resource information of the PDCCH and the obtained resource information of the PDSCH. The invention also discloses an inter-cell interference coordinating device for implementing the method and a network node which comprises the inter-cell interference coordinating device. In the invention, the interference of the strong-interference cell to the SIB/Paging transmission of the neighbor cell in a heterogeneous network is avoided, the communication quality of users in the heterogeneous network is improved, the quality of service (QoS) of the heterogeneous network is greatly improved, and a better user experience effect is guaranteed.
Description
Technical field
The present invention relates to a kind of technology that reduces presence of intercell interference, relate in particular to a kind of inter-cell interference coordination method and device, network node.
Background technology
Have statistics to show, following 80%～90% throughput of system will occur in indoor and the focus occasion.At present traditional Cellular Networks technology has the light isolated hot spots of heavy outdoor gently indoor, heavy beehive net, heavily moves light fixing nomadic etc. the characteristics of switching.One of focus of advanced long-term evolution system (LTE-Advanced, Long Term Evolution Advanced) is exactly that indoor and focus scene are optimized.Heterogeneous network (Heterogeneous Networks) can satisfy the demand of LTE-Advanced well as the technology of a kind of remarkable elevator system throughput and raising network whole efficiency.Isomerism network structure has been introduced some transmitting nodes littler with respect to traditional cell base station transmitting power, comprises Pico cell (Picocell), femtocell (Femtocells) and the relay station (Relay) that is used for signal relay.The introducing of these nodes can provide good guarantee for indoor and the covering focus occasion; And the transmitting power of these nodes is little, is convenient to on-premise network neatly; The coverage of these nodes is little simultaneously, can utilize the potential high band frequency spectrum of LTE-Advanced more easily.But the introducing of new node has changed original topology of networks, makes the presence of intercell interference of this network configuration become a new challenge.
The interference of minizone is generally serious than homogenous networks (Homogeneous Network) in heterogeneous network, therefore needs the interference coordination technique of minizone to reduce the interference of minizone.Here, homogenous networks mainly is meant the configuration scene of have only macro base station in the network (eNB, Evoluted Node Base station) and subscriber equipment (UE, User Equipment); Heterogeneous network mainly is meant the configuration scene that is placed with low power nodes (LPN, Low Power Node) in the macrocell.Low power nodes comprises long distance wireless dateline (RRH, Remote Radio Head), is used to cover the femto base station (Pico eNB) of hot zones, Home eNodeB (HeNB, Home eNB also can be described as femto), relaying (Relay node) etc.
At third generation partner program (3GPP, 3rd Generation Partnership Project) in LTERAN162 the meeting, determined that use time domain coordinated mode is the part subframe and is the mode of full gap frame (ABS, Almost Blank Subffame) the almost main means as the problem of inter-cell interference that solves heterogeneous network.Conclusion according to RAN162 meeting, Target cell can obtain disturbing the adjacent area subframe to be subframe bitmap pattern (bitmap pattern) information of ABS and non-ABS indication and to pass to UE, so UE can know that each subframe of Serving cell is the ABS of corresponding strong jamming adjacent area or the non-ABS of strong jamming adjacent area.Almost full gap frame only only sends public reference signal (CRS, Common Reference Signal) on this subframe, do not send the subframe of other any signals.Promptly producing and disposing several descending sub frames in the strongly disturbing sub-district (aggressor cell) is ABS, the Cell Edge User (CEU, Cell Edge User) that correspondence is subjected in the strongly disturbing sub-district (victim cell) is its down control channel of emission and a data channel on the subframe of ABS in the subframe of corresponding aggressor cell only.Cell Edge User among the victim cell can be subjected to very strong presence of intercell interference, and owing to be to cause signal power lower at the Serving cell edge, therefore also is victim UE.Cell Center User among the victim cell (CCU, Cell Center User) is transmitting downstream control channel and data channel on non-ABS subframe generally.When victim UE number is fewer, the Cell Center User running time-frequency resource that also can to use remaining corresponding aggressor cell be ABS among the victim cell.
Obtain the synchronous of time and frequency in order in cell search process, to make UE and Serving cell, and detect sub-district ID, need by synchronizing channel (SCH, Synchronization Channel), broadcast channel (BCH, Broadcast Channel) and downlink reference signal (RS, Reference Signal) realize.Wherein, BCH is divided into main broadcast channel (PBCH, Primary BCH) and Dynamic Broadcast Channel (DBCH, Dynamic BCH) again.The DBCH that is used for broadcast system information is the system information block (SIB that is carried on downlink shared transmission channel, System Information Block), its resource that takies is to determine according to the schedule information in the Physical Downlink Control Channel (PDCCH, Physical Downlink Control Channel).In addition, the cell paging process need is realized by paging channel (PCH, Paging Channel).PCH is used to transmit the information Paging of eNB paging UE, and its shared running time-frequency resource neither be fixed, and need determine according to the schedule information among the PDCCH.
In order to realize Cell searching and the cell paging process in the radio communication, must guarantee the reliable transmission of SIB/Paging.To heterogeneous network, because victim cell and aggressor cell are common channels, be that its SIB/Paging and relevant PDCCH transmit on identical running time-frequency resource, therefore victim UE can be subjected to strong interference from aggressor cell in above-mentioned channel, and the signal power of cell edge is also lower, to such an extent as to can't correctly demodulate the signal of realizing Cell searching and cell paging.But in order to guarantee Cell searching and the paging among the aggressor cell, the resource that it can not be transmitted SIB/Paging and relevant PDCCH is mourned in silence fully again, has determined the transmission that still can keep SIB/Paging and carry the PDCCH of relevant schedule information on ABS thus in RAN163 meeting.Therefore, by being that the mode that ABS coordinates the heterogeneous network presence of intercell interference has only solved the interference problem of victim UE at data channel and part control channel with aggressor cell corresponding downstream sub-frame configuration, and SIB/Paging and PDCCH still can be subjected to strong interference, can't guarantee reliable communication quality, greatly influence user's impression.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of inter-cell interference coordination method and device, and network node, the interference of effectively having avoided the strong jamming sub-district that its adjacent area is caused.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of inter-cell interference coordination method comprises:
The resource information of the PDSCH of the resource information of the PDCCH of mutual carrying SIB/Paging schedule information and transmission SIB/Paging between the network node of strong jamming sub-district and adjacent area, the resource information of the PDCCH that the network node foundation of strong jamming sub-district or adjacent area is obtained and the resource information of PDSCH are carried out the coordinated scheduling of corresponding physical resource.
Preferably, the resource information of the resource information of the PDCCH that obtains of described foundation and PDSCH is carried out the coordinated scheduling of corresponding physical resource and is:
The network node of described strong jamming sub-district or adjacent area is mourned in silence and the relevant physical resource of SIB/Paging transmission;
Perhaps, when described heterogeneous network is supported the subframe translation, the network node of strong jamming sub-district obtains the adjacent area network node in transmission shared PDCCH and PDSCH resource information during SIB/Paging, and mourns in silence and shared PDCCH and PDSCH resource corresponding physical resource when transmitting SIB/Paging.
Preferably, described method also comprises:
Further mutual described and SIB/Paging transmit the indication information of relevant physical resource between the network node of described strong jamming sub-district and adjacent area, and the network node of strong jamming sub-district or adjacent area carries out coordinated scheduling according to obtaining resource indication information to the indicated physical resource of this information.
Preferably, described according to the resource indication information of obtaining the indicated physical resource of this information carried out coordinated scheduling be:
What the network node silent resource indication information of described strong jamming sub-district or adjacent area was indicated transmits relevant physical resource with SIB/Paging;
Perhaps, when described heterogeneous network is supported the subframe translation, the network node of strong jamming sub-district obtains the adjacent area network node at transmission shared PDCCH and indication information of PDSCH resource during SIB/Paging, and the indicated corresponding physical resource of this indication information of mourning in silence.
Preferably, described adjacent area network node by with described strong jamming subzone network node between the wireline interface that is provided with or wave point is mutual transmits the data message of relevant physical resource and/or the indication information of described physical resource with SIB/Paging.
Preferably, described data message is to obtain the required information of running time-frequency resource; Described indication information is the information of predefined indication running time-frequency resource.
The physical resource of employed data area when preferably, the relevant physical resource of described and SIB/Paging transmission is for shared physical resource in the control channel unit of carrying SIB/Paging schedule information and actual transmissions SIB/Paging.
A kind of Inter-Cell Interference Coordination device comprises interactive unit and coordinated scheduling unit, wherein,
Interactive unit is used for the resource information of the physical downlink control channel PDCCH of mutual bearing system block of information SIB/ paging Paging schedule information between the network node of strong jamming sub-district and adjacent area and the resource information of the Physical Downlink Shared Channel PDSCH that sends SIB/Paging;
The coordinated scheduling unit is used for carrying out according to the resource information of the resource information of the PDCCH that obtained and PDSCH the coordinated scheduling of corresponding physical resource.
Preferably, described coordinated scheduling unit is further used for mourning in silence and the relevant physical resource of SIB/Paging transmission;
Perhaps, when supporting the subframe translation, described coordinated scheduling unit is further according to the adjacent area network node that obtained shared PDCCH and PDSCH resource information when the transmission SIB/Paging, and mourns in silence and shared PDCCH and PDSCH resource corresponding physical resource when transmitting SIB/Paging.
Preferably, described interactive unit is further used for advancing data message and/or the indication information that mutual described and SIB/Paging transmit relevant physical resource between the network node of strong jamming sub-district and adjacent area, accordingly, described coordinated scheduling unit further carries out coordinated scheduling according to the data message and/or the indication information that are obtained to the indicated physical resource of this information.
Preferably, described coordinated scheduling unit be further used for mourning in silence data message and/or indication information indicated with the relevant physical resource of SIB/Paging transmission;
Perhaps, when supporting the subframe translation, described coordinated scheduling unit is further according to the adjacent area network node that obtained shared PDCCH and the data message and/or the indication information of PDSCH resource when the transmission SIB/Paging, and the indicated corresponding physical resource of this information of mourning in silence;
Preferably, described data message is to obtain the required information of running time-frequency resource; Described indication information is the information of predefined indication running time-frequency resource; The physical resource of employed data area when physical resource that the control channel unit that the described physical resource relevant with the SIB/Paging transmission is carrying SIB/Paging schedule information is shared and actual transmissions SIB/Paging.
A kind of network node, described network node comprise above-mentioned Inter-Cell Interference Coordination device.Wherein, described network node is the base station.
Among the present invention, adjacent area network node and the mutual data message relevant of strong jamming subzone network node with the SIB/Paging transmission, and obtain the physical resource information that transmission need take during SIB/Paging according to this data message, adjacent area or strong jamming sub-district again resource corresponding in this sub-district are made coordinated scheduling or mourn in silence (Muting) handles, thereby avoided minizone in the heterogeneous network because of the interference that the resource contention of SIB/Paging and relevant PDCCH causes, realized the purpose of interference coordination.According to technical scheme of the present invention, also avoided in the existing ABS scheme owing to SIB/Paging still can send the interference that causes on ABS, make that the interference of minizone is reduced to minimum in the heterogeneous network.The present invention has improved user's communications quality in the heterogeneous network, has improved to have promoted service quality in the heterogeneous network greatly, has guaranteed preferable user experience effect.
Description of drawings
Fig. 1 is the flow chart of inter-cell interference coordination method of the present invention;
Fig. 2 is channel resource mapping schematic diagram;
The schematic diagram that Fig. 3 dispatches in the data area for SIB/Paging among the present invention;
Fig. 4 is the composition structural representation of Inter-Cell Interference Coordination device of the present invention.
Embodiment
Basic thought of the present invention is, the data message of the resource that the adjacent area network node is relevant with the SIB/Paging transmission alternately with strong jamming subzone network node, and obtaining the physical resource information that transmission need take during SIB/Paging according to this data message, coordinated scheduling is made to resource corresponding in this sub-district again in adjacent area or strong jamming sub-district.And, the further mutual predefined indication information that is used to indicate the physical resource that need take when transmitting SIB/Paging, the foundation indication information that obtains carries out the coordinated scheduling of physical resource.
For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
Embodiment one
Fig. 1 is the flow chart of inter-cell interference coordination method of the present invention, and as shown in Figure 1, inter-cell interference coordination method of the present invention specifically may further comprise the steps:
Step S102, the network node of strong jamming sub-district obtain in the adjacent area and transmit relevant resource information with SIB/Paging; Perhaps, the network node of adjacent area obtains in the strong jamming sub-district and transmits relevant resource information with SIB/Paging.
In this step, the strong jamming sub-district is aforementioned aggressor cell, its in heterogeneous network can to its each other the user among the victim cell of adjacent area particularly the edge customer among the victim cell cause great interference.Network node refers generally to the base station among the present invention, can be the network equipments such as common macro base station or via node, or Home eNodeB.
Among the present invention, the resource information relevant with the SIB/Paging transmission comprises the resource information of the PDCCH that carries the SIB/Paging schedule information and sends the resource information of the Physical Downlink Shared Channel (PDSCH, Physical Downlink Shared Channel) of SIB/Paging.Wherein, the minimum unit of carrying PDCCH resource is control channel particle (CCE, Control Channel Element), and the schedule information of SIB/Paging also just is carried among some CCE.The running time-frequency resource of these CCE generally can be determined by symbolic number and PHICH group number that sub-district ID, PDCCH take.Among the present invention, mainly be to avoid the SIB/Paging relevant information of above-mentioned minizone to disturb, wherein, the SIB/Paging relevant information comprises the scheduling indication information (control information of SIB/Paging, by PDCCH carrying) and the data message (concrete SIB/Paging information is by data channel PDSCH carrying) of SIB/Paging.Network node only needs to carry out interference coordination on the subframe of correspondence and gets final product after obtaining above-mentioned resource information.
Among the present invention, can be provided with line interface or wave point between the network node and obtain and the relevant resource information of SIB/Paging transmission.Can initiatively send or obtain and the relevant resource information of SIB/Paging transmission by the adjacent area network node, also can initiatively send or obtain and the relevant resource information of SIB/Paging transmission by the network node of strong jamming sub-district to its adjacent area to the network node of strong jamming sub-district.
Step S104, the network node of strong jamming sub-district carries out coordinated scheduling according to resource information relevant with the SIB/Paging transmission in the adjacent area that is obtained; Perhaps, the network node of adjacent area carries out coordinated scheduling according to resource information relevant with the SIB/Paging transmission in the strong jamming sub-district that is obtained.
The network node of strong jamming sub-district or adjacent area identifies the physical resource that carries the SIB/Paging schedule information according to the data message of the PDCCH resource of obtaining relevant with the SIB/Paging transmission, and described resource is carried out coordinated scheduling or mourned in silence.Among the present invention, mourning in silence promptly is any information that do not send on the resource of correspondence.
The network node of strong jamming sub-district or adjacent area is according to obtaining the schedule information of SIB/Paging in the data area, identifies SIB/Paging shared running time-frequency resource in the data area then, and described resource is carried out coordinated scheduling or mourned in silence.
Among the present invention, at first need disturb and avoid, it can accurately be received by the UE in the sub-district control channel.Certainly, the indicated concrete control information (concrete command information) of this control channel also will avoid disturbed as far as possible.Generally speaking, above-mentioned control channel and the indicated data channel of this control channel should avoid disturbed simultaneously.
Among the present invention, running time-frequency resource position that can be by relevant interaction message (for example existing interaction message is expanded, realized the mutual of above-mentioned resource occupation information) control channel unit of carrying SIB/Paging schedule information in PDCCH between the network node and SIB/Paging shared concrete running time-frequency resource position in the data area.Certainly, also can between network node, transmit the positional information of the control channel unit of carrying SIB/Paging schedule information among the PDCCH of adjacent area and the positional information of SIB/Paging shared resource in the data area by new interaction message of predefine.Those skilled in the art are to be understood that, realize that the information interaction between the network node is to realize easily, because this part is not to realize the emphasis of technical solution of the present invention, repeats no more between the network node how to realize obtaining of above-mentioned resource information by concrete interaction message here.
Among the present invention, by the mutual SIB/Paging occupation condition relevant with the data channel zone, carry out the coordinated scheduling of resource between the network node, solved in ABS the SIB/Paging interference problem of existence equally effectively in control channel zone.
Embodiment two
The application scenarios of present embodiment at be heterogeneous network system with subframe translation functions.Can on time domain, do the translation of sub-frame level in the heterogeneous network system by the running time-frequency resource of minizone, the SIB/Paging of strong jamming sub-district and adjacent area thereof is not sent at synchronization.
In the heterogeneous network system of subframe translation is arranged, the network node of strong jamming sub-district need receive the schedule information of the sub-district ID of adjacent area, symbolic number that PDCCH takies and PHICH group number and SIB/Paging, obtain in PDCCH the running time-frequency resource position of control channel unit of carrying SIB/Paging schedule information and SIB/Paging shared concrete running time-frequency resource position in the data area, send in the strong jamming sub-district then on the corresponding subframe of SIB/Paging the physical resource of control channel and data area physical resource are made coordinated scheduling or mourned in silence.
Running time-frequency resource position that can be by relevant interaction message (for example existing interaction message is expanded, realized the mutual of above-mentioned resource occupation information) control channel unit of carrying SIB/Paging schedule information in PDCCH between the network node and SIB/Paging shared concrete running time-frequency resource position in the data area.Certainly, also can between network node, transmit the positional information of the control channel unit of carrying SIB/Paging schedule information among the PDCCH of adjacent area and the positional information of SIB/Paging shared resource in the data area by new interaction message of predefine.Those skilled in the art are to be understood that, realize that the information interaction between the network node is to realize easily, because this part is not to realize the emphasis of technical solution of the present invention, repeats no more between the network node how to realize obtaining of above-mentioned resource information by concrete interaction message here.
In this example, so-called subframe translation is meant, is common channel between the sub-district in heterogeneous network, and promptly a lot of shared running time-frequency resources of channel are the same, for fear of the interference that channel confliction brings, the radio frames clock of adjacent area and strong jamming sub-district is the situation of several subframes at interval.
Embodiment three
In the present embodiment, the strong jamming sub-district can be by the PBCH symbolic number that takies of Cell Broadcast CB sub-district ID, PDCCH and PHICH group number towards periphery.
Fig. 2 is channel resource mapping schematic diagram, and as shown in Figure 2, in the radio frames of a 1ms, running time-frequency resource has been divided into control channel zone and data channel zone two parts.PBCH in the data channel zone is some system informations of this sub-district of Cell Broadcast CB towards periphery, are 10 as the sub-district ID of strong jamming sub-district, and the OFDM symbolic number that the control channel zone takies is 3, and PHICH group number is 3.And PDCCH, PHICH and Physical Control Format Indicator Channel (PCFICH, Physical Control Format Indicator Channel) have been comprised in the control channel zone.Wherein, the running time-frequency resource that PCFICH takies is a static configuration, can the resource indication of PDCCH not impacted; Though the running time-frequency resource that PHICH takies is semi-static, also can the clear and definite running time-frequency resource position that it takies according to PHICH group number.Remove the shared resource of PCFICH and PHICH, the running time-frequency resource that the OFDM symbolic number that takies according to the control channel zone takies with regard to clear and definite its PDCCH of energy.And control channel unit CCE is the minimum unit of carrying PDCCH resource, its be according to first frequency domain again the mode of time domain be mapped on the running time-frequency resource of PDCCH, under the indication of sub-district ID, just can judge the CCE of carrying SIB/Paging schedule information, thus the clear and definite shared running time-frequency resource of this information.Therefore, disturb the adjacent area just can indicate the running time-frequency resource position of carrying the SIB/Paging schedule information accurately, thereby avoid interference by the coordinated scheduling or the mode of mourning in silence at the sub-district ID that obtains the strong jamming sub-district, symbolic number and PHICH group number that PDCCH takies.
Because the OFDM symbolic number that the control channel zone is comprised only may be 1 or 2 or 3, PHICH group number only may be 1 group or 2 groups or 3 groups, and different little area definitions has different sub-district ID, therefore, above-mentioned all different situations are arranged in pairs or groups, can know all possible running time-frequency resource position of carrying SIB/Paging schedule information in advance, and designator of predefine identifies to corresponding resource.Therefore, just can clearly need the running time-frequency resource making coordinated scheduling or mourn in silence by mutual this designator between the network node.Can set the above-mentioned designator and the corresponding relation of resource information arbitrarily, as long as provide above-mentioned corresponding relation in related protocol, this corresponding relation can be got final product by network node understanding.It will be appreciated by those skilled in the art that and realize that above-mentioned corresponding relation is easy realization.
Embodiment four
In the present embodiment, can obtain SIB/Paging shared concrete running time-frequency resource position in the data area by the system information of broadcasting between the network node, also can directly indicate this running time-frequency resource position by predefine information.
The schematic diagram that Fig. 3 dispatches in the data area for SIB/Paging among the present invention, as shown in Figure 3, unification is numbered the resource that the SIB/Paging in all sub-districts may take in the data area, and indicate with variable k, if current area has taken the resource of k=1, the network node of current area then can send to this information the network node of adjacent area, and interactive mode can be for directly sending a notification message, or send after the information that receives the adjacent area network node is obtained message.Art technology should be appreciated that easily above-mentioned information interaction mode is to realize easily.By the transmission of such predefine information, the adjacent area just can know that the resource that is designated k need carry out coordinated scheduling or mourn in silence, and then carries out coordinated scheduling or mourn in silence on the resource of correspondence.
This example is actually the embodiment that the SIB/Paging data that pending scheduling is coordinated are carried out coordinated scheduling.By the direct indication (by the corresponding relation of prior setting identification symbol with respective resources) to the shared resource of SIB/Paging data, network node directly carries out coordinated scheduling to corresponding resource or mourns in silence.
Fig. 4 is the composition structural representation of Inter-Cell Interference Coordination device of the present invention, and as shown in Figure 4, Inter-Cell Interference Coordination device of the present invention comprises interactive unit 40 and coordinated scheduling unit 41, wherein,
Interactive unit 40, be used for the resource information of the PDCCH of mutual carrying SIB/Paging schedule information between the network node of strong jamming sub-district and adjacent area and the resource information of the Physical Downlink Shared Channel (PDSCH, Physical Downlink Shared Channel) that sends SIB/Paging;
Coordinated scheduling unit 41 is used for carrying out according to the resource information of the resource information of the PDCCH that obtained and PDSCH the coordinated scheduling of corresponding physical resource.
Above-mentioned coordinated scheduling unit 41 is further used for mourning in silence and the relevant physical resource of SIB/Paging transmission;
Perhaps, when supporting the subframe translation, above-mentioned coordinated scheduling unit 41 is further according to the adjacent area network node that obtained shared PDCCH and PDSCH resource information when the transmission SIB/Paging, and mourns in silence and shared PDCCH and PDSCH resource corresponding physical resource when transmitting SIB/Paging.
Above-mentioned interactive unit 40 is further used for advancing data message and/or the indication information that mutual described and SIB/Paging transmit relevant physical resource between the network node of strong jamming sub-district and adjacent area, accordingly, above-mentioned coordinated scheduling unit 41 further carries out coordinated scheduling according to the data message and/or the indication information that are obtained to the indicated physical resource of this information.
Above-mentioned coordinated scheduling unit 41 is further used for the indicated physical resource relevant with SIB/Paging transmission of silent resource indication information;
Perhaps, when supporting the subframe translation, above-mentioned coordinated scheduling unit 41 is further according to the adjacent area network node that obtained shared PDCCH and the data message and/or the indication information of PDSCH resource when the transmission SIB/Paging, and the indicated corresponding physical resource of this information of mourning in silence.Above-mentioned data message is to obtain the required information of running time-frequency resource; Described indication information is the information of predefined indication running time-frequency resource; The physical resource of employed data area when physical resource that the control channel unit that the described physical resource relevant with the SIB/Paging transmission is carrying SIB/Paging schedule information is shared and actual transmissions SIB/Paging.
A kind of network node comprises above-mentioned Inter-Cell Interference Coordination device.
Described network node is the base station.Wherein, the base station can be the network equipments such as macro base station, via node or Home eNodeB.
Those skilled in the art are to be understood that, the present invention's Inter-Cell Interference Coordination device shown in Figure 4 designs for realizing aforesaid inter-cell interference coordination method of the present invention, the realization function of above-mentioned each processing unit can be with reference to the associated description of preceding method and is understood, and specifically can understand referring to the description of previous embodiment one to embodiment four.The function of the each processing unit among the figure can realize by the program that runs on the processor, also can realize by concrete logical circuit.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (14)
1. an inter-cell interference coordination method is characterized in that, described method comprises:
The resource information of the Physical Downlink Shared Channel PDSCH of the resource information of the physical downlink control channel PDCCH of mutual bearing system block of information SIB/ paging Paging schedule information and transmission SIB/Paging between the network node of strong jamming sub-district and adjacent area, the resource information of the PDCCH that the network node foundation of strong jamming sub-district or adjacent area is obtained and the resource information of PDSCH are carried out the coordinated scheduling of corresponding physical resource.
2. method according to claim 1 is characterized in that, the coordinated scheduling that the resource information of the PDCCH that described foundation is obtained and the resource information of PDSCH are carried out corresponding physical resource is:
The network node of described strong jamming sub-district or adjacent area is mourned in silence and the relevant physical resource of SIB/Paging transmission;
Perhaps, when described heterogeneous network is supported the subframe translation, the network node of strong jamming sub-district obtains the adjacent area network node in transmission shared PDCCH and PDSCH resource information during SIB/Paging, and mourns in silence and shared PDCCH and PDSCH resource corresponding physical resource when transmitting SIB/Paging.
3. method according to claim 1 and 2 is characterized in that, described method also comprises:
Further mutual described and SIB/Paging transmit the indication information of relevant physical resource between the network node of described strong jamming sub-district and adjacent area, and the network node of strong jamming sub-district or adjacent area carries out coordinated scheduling according to obtaining resource indication information to the indicated physical resource of this information.
4. method according to claim 3 is characterized in that, described according to the resource indication information of obtaining the indicated physical resource of this information carried out coordinated scheduling be:
What the network node silent resource indication information of described strong jamming sub-district or adjacent area was indicated transmits relevant physical resource with SIB/Paging;
Perhaps, when described heterogeneous network is supported the subframe translation, the network node of strong jamming sub-district obtains the adjacent area network node at transmission shared PDCCH and indication information of PDSCH resource during SIB/Paging, and the indicated corresponding physical resource of this indication information of mourning in silence.
5. method according to claim 4, it is characterized in that, described adjacent area network node by with described strong jamming subzone network node between the wireline interface that is provided with or wave point is mutual transmits the data message of relevant physical resource and/or the indication information of described physical resource with SIB/Paging.
6. method according to claim 5 is characterized in that, described data message is to obtain the required information of running time-frequency resource; Described indication information is the information of predefined indication running time-frequency resource.
7. method according to claim 5, it is characterized in that the physical resource of employed data area when physical resource that the control channel unit that the described physical resource relevant with the SIB/Paging transmission is carrying SIB/Paging schedule information is shared and actual transmissions SIB/Paging.
8. an Inter-Cell Interference Coordination device is characterized in that, described device comprises interactive unit and coordinated scheduling unit, wherein,
Interactive unit is used for the resource information of the physical downlink control channel PDCCH of mutual bearing system block of information SIB/ paging Paging schedule information between the network node of strong jamming sub-district and adjacent area and the resource information of the Physical Downlink Shared Channel PDSCH that sends SIB/Paging;
The coordinated scheduling unit is used for carrying out according to the resource information of the resource information of the PDCCH that obtained and PDSCH the coordinated scheduling of corresponding physical resource.
9. device according to claim 8 is characterized in that, described coordinated scheduling unit is further used for mourning in silence and the relevant physical resource of SIB/Paging transmission;
Perhaps, when supporting the subframe translation, described coordinated scheduling unit is further according to the adjacent area network node that obtained shared PDCCH and PDSCH resource information when the transmission SIB/Paging, and mourns in silence and shared PDCCH and PDSCH resource corresponding physical resource when transmitting SIB/Paging.
10. according to Claim 8 or 9 described devices, it is characterized in that, described interactive unit is further used for advancing data message and/or the indication information that mutual described and SIB/Paging transmit relevant physical resource between the network node of strong jamming sub-district and adjacent area, accordingly, described coordinated scheduling unit further carries out coordinated scheduling according to the data message and/or the indication information that are obtained to the indicated physical resource of this information.
11. device according to claim 10 is characterized in that, described coordinated scheduling unit be further used for mourning in silence data message and/or indication information indicated with the relevant physical resource of SIB/Paging transmission;
Perhaps, when supporting the subframe translation, described coordinated scheduling unit is further according to the adjacent area network node that obtained shared PDCCH and the data message and/or the indication information of PDSCH resource when the transmission SIB/Paging, and the indicated corresponding physical resource of this information of mourning in silence;
12. device according to claim 11 is characterized in that, described data message is to obtain the required information of running time-frequency resource; Described indication information is the information of predefined indication running time-frequency resource; The physical resource of employed data area when physical resource that the control channel unit that the described physical resource relevant with the SIB/Paging transmission is carrying SIB/Paging schedule information is shared and actual transmissions SIB/Paging.
13. a network node is characterized in that, described network node comprises each described Inter-Cell Interference Coordination device of claim 8 to 12.
14. network node according to claim 13 is characterized in that, described network node is the base station.
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