CN101742612A - Method, device and evolution base station for saving adjacent cell relation information - Google Patents

Method, device and evolution base station for saving adjacent cell relation information Download PDF

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Publication number
CN101742612A
CN101742612A CN200810219240A CN200810219240A CN101742612A CN 101742612 A CN101742612 A CN 101742612A CN 200810219240 A CN200810219240 A CN 200810219240A CN 200810219240 A CN200810219240 A CN 200810219240A CN 101742612 A CN101742612 A CN 101742612A
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sub
district
information
adjacent cell
cell
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宋平
王学龙
王君
张欢
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Abstract

The invention discloses a method for saving an adjacent cell relation table, which comprises the step of: when determining that a second cell is a new adjacent cell of a first cell according to adjacent cell information measured and reported by terminals in the first cell, saving the adjacent cell relation information related to the second cell. The adjacent cell relation information related to the second cell contains any combination of the following parameter attributes: frequency information, tracking area code (TAC) information, radio access technology (RAT) information, inter-cell interference coordination (ICIC), load balancing (LB) and parameters for switching. The invention also discloses a device and an evolution base station for saving the adjacent cell relation information. By implementing the embodiment of the invention, the adjacent cell relation information containing the attributes can realize the optimization of network relation, thereby improving the communication quality of user terminals and the user satisfaction degree.

Description

The method that saves adjacent cell relation information, device and evolution base station
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method that saves adjacent cell relation information, device and evolution base station.
Background technology
Along with the development of wireless data service and enriching of mobile network solution, variation has also taken place in mobile network's sub-district notion gradually, and the wide macrocellular that covers on the traditional sense is not only arranged, and the microcellulor even the Pico cell of hot spot region also occurred covering.Switching when realizing that portable terminal carries out mobile communication between different districts need be at the base station system configuration of each sub-district and the neighboring BS relationship of its adjacent area, and the broadcast notice portable terminal by base station system.Neighboring BS relationship configuration accurately, for the handover success rate that improves portable terminal, very high customer satisfaction is significant.
In the present LTE system (Long Term Evolution, Long Term Evolution), adopt ANR (AutomaticNeighbor Relation, Automatic Neighboring Relation) mode to set up and safeguard neighboring BS relationship.ANR emphasizes portable terminal active probe adjacent area function, by portable terminal automatically detected cells exist, and report eNB (E-UTRAN NodeB, evolution base station), carry out the operations such as detection, establishment, deletion of neighboring BS relationship again by eNB.The neighboring BS relationship data of setting up by the ANR mode in the prior art only comprise that the neighboring BS relationship of several affiliated subdistricts under the eNB is right, and represent these neighboring BS relationship between some attributes, for example, whether can switch, whether allow to set up or use X2 link (link between the eNB) etc.
But the adjacent cell relation information of preserving in the such scheme is perfect inadequately, is unfavorable for adjacent area optimization.
Summary of the invention
The embodiment of the invention provides a kind of method that saves adjacent cell relation information, device and evolution base station, and perfect neighboring BS information is more conducive to the adjacent area and optimizes.
On the one hand, the embodiment of the invention provides a kind of method that saves adjacent cell relation information, and comprises step:
When the neighboring BS information that reports according to the terminal measurement in first sub-district determines that second sub-district is the new adjacent area of first sub-district, preserve the adjacent cell relation information relevant with second sub-district;
The described adjacent cell relation information relevant with second sub-district comprises the combination in any of following parameter attribute: frequency information, tracing area code TAC information, wireless access technology RAT information, Inter-Cell Interference Coordination ICIC, load balancing LB, the parameter that is used to switch.
On the other hand, the embodiment of the invention provides a kind of device that saves adjacent cell relation information, and comprising:
Judging unit is used for the neighboring BS information that the terminal measurement according to first sub-district reports and judges whether second sub-district is the new adjacent area of first sub-district;
Preserve the unit, be used for when described judging unit determines that described second sub-district is the new adjacent area of first sub-district, preserving the adjacent cell relation information relevant with second sub-district;
The described adjacent cell relation information relevant with second sub-district comprises the combination in any of following parameter attribute: frequency information, tracing area code TAC information, wireless access technology RAT information, Inter-Cell Interference Coordination ICIC, load balancing LB, the parameter that is used to switch.
On the other hand, the embodiment of the invention provides a kind of evolution base station, and this base station comprises the above-mentioned device that saves adjacent cell relation information.
Implement the embodiment of the invention, when finding the new adjacent area adjacent with sub-district, terminal place, in the adjacent cell relation information table, preserve and the relevant adjacent cell relation information in new adjacent area, the combination in any that should adjacent cell relation information relevant comprises following parameter: frequency information, tracing area code TAC information, wireless access technology RAT information, Inter-Cell Interference Coordination ICIC, load balancing LB, the parameter that is used to switch with new adjacent area, the optimization of cyberrelationship be can realize based on the adjacent cell relation information that comprises above-mentioned attribute information, thereby user terminal speech quality and user satisfaction improved.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of the method that saves adjacent cell relation information of the embodiment of the invention one;
Fig. 2 is the schematic flow sheet of the method that saves adjacent cell relation information of the embodiment of the invention two;
Fig. 3 is the schematic flow sheet of the method that saves adjacent cell relation information of the embodiment of the invention three;
Fig. 4 is the apparatus structure schematic diagram of the generation adjacent cell relation information of the embodiment of the invention four.
Embodiment
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 is obtained under the creative work prerequisite.
The embodiment of the invention provides a kind of method that saves adjacent cell relation information, and comprising:
When determining that according to the neighboring BS information of the transmission of the terminal in first sub-district second sub-district is the new adjacent area of first sub-district, preserve the adjacent cell relation information relevant with second sub-district.
In the present embodiment, the adjacent cell relation information of preserving can comprise the combination in any of following parameter attribute: frequency information, TAC (Tracking Area Code, the tracing area code) information, RAT (Radio AccessTechnology, wireless access technology) information, ICIC (Inter-Cell Interference Coordination, Inter-Cell Interference Coordination), LB (Load Balancing, load balancing), the parameter that is used to switch.
In the present embodiment, adjacent cell relation information can be kept among the NRT (Neighbor Relation Table, neighborhood region correlation chart).
The adjacent cell relation information that the method that the embodiment of the invention provides is more perfect preserves helps the adjacent area and optimizes.
At different application scenarioss, the method that saves adjacent cell relation information that the embodiment of the invention is provided is described in detail below.
Referring to Fig. 1, be the schematic flow sheet of the method that saves adjacent cell relation information of the embodiment of the invention one, among this embodiment, all in the LTE system, this method specifically comprises in the adjacent area of sub-district, terminal place:
101, the neighboring BS information that sends according to terminal has determined whether new adjacent area.
In the present embodiment, be in the edge of sub-district, current place (hereinafter to be referred as this sub-district) when user terminal, and when being in state of activation (Active state), have signaling to be connected between user terminal and eNB, comprise situations such as conversation, mobile Internet access, transmitting-receiving note, user terminal is in order to keep professional continuity, have switching behavior generation with neighboring interval, therefore eNB can make the user terminal measurement signal quality of adjacent cells, in order to switching to the relevant nearby region measurement of user terminal configuration.The sign of user terminal each adjacent area in the rim detection of this sub-district and around obtaining, as PHY_ID (Physical Identity, the sub-district physical label), or cell identification list, user terminal with the adjacent zone information reporting that measures to eNB, eNB judges the sign that whether has the sub-district of user terminal to send up among the existing NRT, if do not exist, then this adjacent area is new adjacent area.
102, when defining new adjacent area, preserve and the relevant adjacent cell relation information in new adjacent area.
In the present embodiment, new adjacent area and this sub-district belong to same system, and same frequency is used with this sub-district in new adjacent area.
In the present embodiment, the concrete existence form of described adjacent cell relation information can be the NRT that preserves among the eNB, when the eNB under this sub-district finds adjacent with this sub-district new sub-district, indicating user terminal obtains CGI (the Cell Global Identity of this new adjacent area from the broadcast message of described new adjacent area, cellular global identity) and/or TAC, wherein, if terminal need be carried out the switching of S1 interface, need be according to TAC information localizing objects sub-district, eNB obtains these parameter informations can following dual mode: mode 1, indicating user terminal reads from the broadcast message of each adjacent area; Mode 2, by obtaining to webmaster side inquiry.
In the present embodiment, eNB generates the NRT of corresponding this sub-district and described new adjacent area, with respect to NRT of the prior art, can increase the combination in any that comprises following parameter: ICIC information, LB information, frequency attribute information, TAC information, RAT information, handoff parameter information.
Preferably, in specific embodiment, each parameter that comprises among the NRT can be a corresponding attribute column among the NRT.Table one, table two and table three are with three specific embodiments of described NRT under the system frequently in the embodiment of the invention, under with the frequency system, described NRT does not comprise frequency attribute information, be described in detail with regard to the information that comprises among the NRT in this specific embodiment respectively based on table one, table two and table three below, in the embodiment of the invention, the value of each attribute is all distinguished with false or true among the NRT, can certainly represent mode with other, for example 1 and 0, the embodiment of the invention is not done concrete qualification.
Table one:
??NR ??LCI ??TCI ??Target??TAC ??No??remove X2HO S1HO X2 ??S1??ICIC ??X2??ICIC S1LB X2LB ??Mobility??parameters
??1 ??LCI#1 ??TCI#1 ??TAC#1 ??√
??2 ??LCI#1 ??TCI#2 ??TAC#2 √ √
??3 ??LCI#2 ??TCI#3 ??TAC#3 ??√ ??√
??4 ??LCI#2 ??TCI#4 ??TAC#4 ??√
??5 ??LCI#3 ??TCI#5 ??TAC#5 ??√
??NR ??LCI ??TCI ??Target??TAC ??No??remove X2HO S1HO X2 ??S1??ICIC ??X2??ICIC S1LB X2LB ??Mobility??parameters
??… ??… ??… ??… ??… … … … ??… ??… … … ??…
Table two:
??NR ??LCI ??TCI ??Target??TAC ??No??remove ??NO??X2 ??NO??S1 ??NO??X2 ??NO??S1 ??NO??X2 ??NO??S1 ??NO??X2 ??Mobility??parameters
??HO ??HO ??ICIC ??ICIC ??LB ??LB
??1 ??LCI#1 ??TCI#1 ??TAC#1 ??√
??2 ??LCI#1 ??TCI#2 ??TAC#2 ??√ ??√
??3 ??LCI#2 ??TCI#3 ??TAC#3 ??√ ??√
??4 ??LCI#2 ??TCI#4 ??TAC#4 ??√
??5 ??LCI#3 ??TCI#5 ??TAC#5 ??√
??… ??… ??… ??… ??… ??… ??… ??… ??… ??… ??… ??… …
Table three:
??NR ??LCI ??TCI ??Target??TAC ??No??remove ??NO?HO ??NO??X2 ??NO?ICIC ??NO?LB ??Mobility??parameters
??1 ??LCI#1 ??TCI#1 ??TAC#1 ??√
??2 ??LCI#1 ??TCI#2 ??TAC#2 ??√
??3 ??LCI#2 ??TCI#3 ??TAC#3 ??√ ??√
??4 ??LCI#2 ??TCI#4 ??TAC#4 ??√
??5 ??LCI#3 ??TCI#5 ??TAC#5 ??√
??… ??… ??… ??… ??… ??… ??… ??… ??… ??…
Table three is a kind of simplified structure of the represented neighborhood region correlation chart of his-and-hers watches one and table two, and wherein whether NO HO attribute representation allows user terminal to carry out the sub-district switching, when NO HO attribute is set to false, represents to allow user terminal to carry out the switching of this two neighboring interval; When NO HO attribute is set to true, represent not allow user terminal to carry out the switching of this two neighboring interval; Whether NO X2 attribute, expression allow between the eNB to set up or to use the X2 link that X2 switches to be needed, and when NO X2 attribute is set to false, expression allows eNB to set up or uses the X2 link that X2 switches to be needed; When NO X2 attribute is set to true, represent not allow eNB to set up or use the channel that switch the sub-district needs;
In table three, with respect to table one and table two, Interference Control is coordinated attribute simplify, only comprise NO ICIC attribute, the load balance controlled attribute is also simplified, only comprise NO Load balancing attribute.
Should be noted that above-described table one to the neighborhood region correlation chart of three kinds of structures shown in the table three all only is a kind of embodiment of the present invention.During concrete enforcement, eNB can preserve any one table in three tables that the foregoing description provides.
Referring to Fig. 2, be the schematic flow sheet of the method that saves adjacent cell relation information of the embodiment of the invention two, among this embodiment, all in the LTE system, this method specifically comprises in the adjacent area of sub-district, terminal place:
201, the neighboring BS information that sends according to terminal has determined whether new adjacent area.
In the present embodiment, the neighboring BS information that sends according to terminal determines whether that the method for new adjacent area is with embodiment one.
202, when defining new adjacent area, preserve and the relevant adjacent cell relation information in new adjacent area.
In the present embodiment, new adjacent area and this sub-district belong to same system, and same frequency is not used with this sub-district in new adjacent area.
In the embodiment of the invention, the concrete form of NRT table shown in table four, table five or table six, with table one to represented the comparing of table three with frequency NRT, the NRT in the present embodiment has increased the frequency attribute row.This frequency attribute is classified the center frequency information of corresponding adjacent area as, and the centre frequency of this adjacent area can be obtained from the measurement report of user terminal to send up.
Table four:
??NR ??LCI ??TCI ??Target??TAC ??Freq ??No??remove ??X2??HO ??S1??HO ??X2 ??S1??ICIC ??X2??ICIC ??S1??LB ??X2??LB ??Mobility??parameters
??1 ??LCI#1 ??TCI#1 ??TAC#1 ??F1 ??√
??2 ??LCI#1 ??TCI#2 ??TAC#2 ??F2 ??√ ??√
??3 ??LCI#2 ??TCI#3 ??TAC#3 ??F3 ??√ ??√
??4 ??LCI#2 ??TCI#4 ??TAC#4 ??F1 ??√
??5 ??LCI#3 ??TCI#5 ??TAC#5 ??F4 ??√
??… ??… ??… ??… ??… ??… ??… ??… ??… ??… ??… ??… ??…
Table five:
??NR ??LCI ??TCI ??Target??TAC ??Freq ??No??remove ??NO??X2??HO ??NO??S1??HO ??NO??X2 ??NO??S1??ICIC ??NO??X2??ICIC ??NO??S1??LB ??NO??X2??LB ??Mobility??paramete??rs
??1 ??LCI#1 ??TCI#1 ??TAC#1 ??F1 ??√
??2 ??LCI#1 ??TCI#2 ??TAC#2 ??F2 ??√ ??√
??3 ??LCI#2 ??TCI#3 ??TAC#3 ??F3 ??√ ??√
??4 ??LCI#2 ??TCI#4 ??TAC#4 ??F1 ??√
??5 ??LCI#3 ??TCI#5 ??TAC#5 ??F4 ??√
??… ??… ??… ??… … … … … ??… … … … …
Table six:
??NR ??LCI ??TCI ??Target??TAC ??Freq ??No??remove ??NO??HO ??NO??X2 ??NO??ICIC ??NO?LB ??Mobility??parameters
??1 ??LCI#1 ??TCI#1 ??TAC#1 ??F1 ??√
??2 ??LCI#1 ??TCI#2 ??TAC#2 ??F2 ??√
??3 ??LCI#2 ??TCI#3 ??TAC#3 ??F3 ??√ ??√
??4 ??LCI#2 ??TCI#4 ??TAC#4 ??F1 ??√
??5 ??LCI#3 ??TCI#5 ??TAC#5 ??F4 ??√
??… ??… ??… ??… ??… ??… ??… ??… ??… ??…
Should be noted that above-described table one to the neighborhood region correlation chart of three kinds of structures shown in the table three all only is a kind of embodiment of the present invention.During concrete enforcement, eNB can preserve any one table in three tables that the foregoing description provides.
During concrete enforcement, when new adjacent area and this sub-district belonged to same system, eNB also can preserve in three tables that embodiment two provides one, at this moment, use same frequency (being the situation of embodiment one) for new adjacent area and this sub-district, frequency attribute is classified the optional row of filling in as.
Referring to Fig. 3, be the schematic flow sheet of the method that saves adjacent cell relation information of the embodiment of the invention three, among this embodiment, the adjacent area of sub-district, terminal place may be in the LTE system, and this method specifically comprises:
301, the neighboring BS information that sends according to terminal has determined whether new adjacent area.
In the present embodiment, the neighboring BS information that sends according to terminal determines whether that the method for new adjacent area is with embodiment one.And, when if the adjacent area is not positioned at the LTE system, the sign of the detected sub-district of terminal is not PHY_ID, for example, if the sub-district is arranged in GERAN, the sign of sub-district is base station identity code (BSIC), if be arranged in UTRAN, the sign of sub-district is scrambler (Scrambling Code), if the sub-district is arranged in CDMA2000, the sign of sub-district is pseudo noise code side-play amount (Pseudo-Random Number Offset).
302, when defining new adjacent area, preserve and the relevant adjacent cell relation information in new adjacent area.
In the present embodiment, when new adjacent area and this sub-district do not belong to same system.
In the present embodiment, the structure of the NRT that eNB generates is compared to the represented alien frequencies neighborhood region correlation chart of table six with table four shown in table seven and table eight, and the represented different system neighborhood region correlation chart of table seven and table eight has increased system property RAT.
Table seven:
??NR ??LCI ??TCI ??RAT ??Freq ??No??remove ??HO ??LB ??Mobility??parameters
??1 ??LCI#1 ??TCI#1 ??UMTS?FDD ??F1
??2 ??LCI#1 ??TCI#2 ??GSM ??F2 ??√ ??√
??3 ??LCI#2 ??TCI#3 ??UMTS?TDD ??F3 ??√
??4 ??LCI#2 ??TCI#4 ??GSM ??F1
??5 ??LCI#3 ??TCI#5 ??CDMA2000 ??F4 ??√
??… ??… ??… ??… ??… ??… ??…
Table eight:
??NR ??LCI ??TCI ??RAT ??Freq ??No??remove ??NO??HO ??NO??LB ??Mobility??parameters
??1 ??LCI#1 ??TCI#1 ??UMTS?FDD ??F1
??2 ??LCI#1 ??TCI#2 ??GSM ??F2 ??√ ??√
??3 ??LCI#2 ??TCI#3 ??UMTS?TDD ??F3 ??√
??4 ??LCI#2 ??TCI#4 ??GSM ??F1
??NR ??LCI ??TCI ??RAT ??Freq ??No??remove ??NO??HO ??NO??LB ??Mobility??parameters
??5 ??LCI#3 ??TCI#5 ??CDMA2000 ??F4 ??√
??… ??… ??… ??… ??… ??… ??…
Should be noted that above-described table one to the neighborhood region correlation chart of three kinds of structures shown in the table three all only is a kind of embodiment of the present invention.During concrete enforcement, eNB can preserve any one table in three tables that the foregoing description provides.
Above embodiment is the different NRT that is provided with at this sub-district and the relation of new adjacent area, what certainly can understand is, eNB also can preserve same NRT at all new adjacent areas, at this moment, the attribute that comprises in the NRT table can be the attribute intersection of any three tables among above three embodiment, for example, the intersection of table 1, table 4, table 7, intersection of table 1, table 5, table 8 or the like.
The attribute that relates in the NRT table that below above three embodiment is provided is described in detail:
LCI (Local Cell ID, local district identification), the PHY_ID of each sub-district and corresponding CGI under the eNB under corresponding this sub-district;
TCI (Target Cell ID, Target Cell Identifier), the sign of corresponding each adjacent area, as PHY_ID, or BSIC, or scrambler, or PN side-play amount and corresponding CGI;
Target TAC, TAC under the Target cell, this TAC value is used for eNB and carries out paging, promptly delimit more geographic sub-districts and belong to a tracing area, each tracing area identifies with a TAC, when carrying out the S1 switching, need locate switching target small area according to TAC, determine Target cell according to CGI again;
No remove attribute, whether expression allows eNB that the data record among the NRT is carried out deletion action.Need to prove, for the operation of writing down among the deletion NRT, OSS side (Operation Support System, OSS) and the eNB side can do, but the eNB side can only be set to represent that the record that can delete deletes to No remove attribute, and this deletion behavior is only at the record of this sub-district and neighboring interval among the NRT;
NO X2 HO attribute, whether expression allows user terminal to carry out the sub-district by X2 interface switches, for example, and when NO X2 HO attribute is set to false (correspondence table two), or when X2 HO attribute was set to true (correspondence table one), expression allowed user terminal to carry out the sub-district switching by X2 interface; When NO X2 HO attribute is set to true (correspondence table two), or when X2 HO attribute is set to false (correspondence table one), expression does not allow user terminal to carry out the sub-district by X2 interface to switch;
NO S1 HO attribute, whether expression allows user terminal to carry out the sub-district by the S1 interface switches, when NOS1 HO attribute is set to false (correspondence table two), or when S1 HO attribute is set to true (correspondence table one), expression allows user terminal to carry out the sub-district by the S1 interface to switch; When NO S1 HO attribute is set to true (correspondence table two), or when S1 HO attribute is set to false (correspondence table one), expression does not allow user terminal to carry out the sub-district by the S1 interface to switch;
NO X2 attribute, whether expression allows to set up between the eNB X2 link, and when NO X2 attribute is set to false (correspondence table two), or when the X2 attribute is set to true (correspondence table one), expression permission eNB sets up the X2 link; When NO X2 attribute is set to true (correspondence table two), or when the X2 attribute is set to false (correspondence table one), expression does not allow eNB to set up the X2 link;
NO S1 ICIC attribute, whether expression allows to transmit ICIC information to carry out Inter-Cell Interference Coordination at the S1 interface, the LTE physical layer adopts OFDM technology (Orthogonal Frequency-DivisionMultiplexing, OFDM), whole available band are used in each sub-district, the cell edge signal is more weak, the user of cell edge needs bigger transmitting power, so just bigger interference is caused in the adjacent area, and Cell Edge User is nearer from the adjacent area, disturbed by the up-downgoing of adjacent area user and base station also easilier.Therefore the adjacent area is at cell edge, if use same frequency band, bigger presence of intercell interference will be caused, so need carry out ICIC, owing to comprise adjacent area RSRP value (signal quality) in the measurement report of user terminal to send up, with this sub-district RSRP value, when the ratio of the RSRP value of the adjacent area that gets access to from measurement report and this sub-district reaches certain threshold value, just need transmit ICIC information at the S1 interface, be that NO S1 ICIC attribute is set to false (correspondence table two), or S1 ICIC attribute is set to true (correspondence table one); If do not reach threshold value, then need not transmit ICIC information at the S1 interface, promptly NO S1 ICIC attribute is set to true (correspondence table two), or S1 ICIC attribute is set to false (correspondence table one);
NO X2 ICIC attribute, whether expression allows to transmit ICIC information at X2 interface is carried out Inter-Cell Interference Coordination, compare adjacent area RSRP value and this sub-district RSRP value, when the ratio of the RSRP value of the adjacent area that gets access to from measurement report and this sub-district reaches certain threshold value, just need transmit ICIC information at X2 interface, be that NO X2 ICIC attribute is set to false (correspondence table two), or X2 ICIC attribute is set to true (correspondence table one); If do not reach threshold value, then need not transmit ICIC information at X2 interface, promptly NO X2 ICIC attribute is set to true (correspondence table two), or X2 ICIC attribute is set to false.The described Interference Control of present embodiment is coordinated attribute information and is comprised described NO S1 ICIC/S1 ICIC attribute and described NO X2 ICIC/X2ICIC attribute.
NO S1 Load balancing attribute, whether expression allows to transmit the load balancing that load balancing (Loadbalancing) information is carried out neighboring interval at the S1 interface, because there is the certain capacity load limitations each sub-district, generally be exactly that the number of users that can hold of a sub-district has certain limitation, load as if a certain sub-district in two adjacent areas is heavier, and the load of another sub-district is lighter, just can carry out load balance to these two sub-districts handles, promptly allow the certain customers' terminal that is in cell edge in the heavier sub-district of load switch to the lighter adjacent area of load, with the balance loading level of adjacent area once, when needs carry out above-mentioned load balance by the S1 interface, NO S1Load balancing attribute is set to false (correspondence table two), or S1 Load balancing attribute is set to true (correspondence table one); If when not needing to carry out above-mentioned load balance by the S1 interface, NO S1 Loadbalancing attribute is set to true (correspondence table two), or S1 Load balancing attribute is set to false (correspondence table one);
NO X2 Load balancing attribute, whether expression allows to transmit the load balancing that Load balancing information is carried out neighboring interval at X2 interface, because there is the certain capacity load limitations each sub-district, generally be exactly that the number of users that can hold of a sub-district has certain limitation, load as if a certain sub-district in two adjacent areas is heavier, and the load of another sub-district is lighter, just can carry out load balance to these two sub-districts handles, promptly allow the certain customers' terminal that is in cell edge in the heavier sub-district of load switch to the lighter adjacent area of load, with the balance loading level of adjacent area once, carry out above-mentioned load balance control constantly when allowing to transmit Load balancing information by X2, NO X2 Load balancing attribute is set to false (correspondence table two), or X2 Loadbalancing attribute is set to true (correspondence table one); If do not allow, NO X2 Load balancing attribute is set to true (correspondence table two), or X2 Load balancing attribute is set to false (correspondence table one).The described load balancing control information of present embodiment comprises above-mentioned NO S1 Load balancing/S1 Loadbalancing attribute and NO S1 Load balancing/S1 Load balancing attribute.
NO ICIC attribute, whether expression allows to carry out Inter-Cell Interference Coordination at two neighboring intervals, if the NOICIC attribute is set to false, expression allows this two adjacent area to carry out Inter-Cell Interference Coordination, if NO ICIC attribute is set to true, expression does not allow this two adjacent area to carry out Inter-Cell Interference Coordination.
NO Load balancing attribute, whether expression allows to carry out load balance control at two neighboring intervals, particularly, can work as NO Load balancing attribute when being set to false, expression allows this two minizone to carry out the load balance processing, when NO Load balancing attribute was set to true, expression did not allow this two minizone to carry out the load balance processing.
Mobility parameters attribute, be used to represent sub-district handover measurement configuration parameter, as offset (offset parameter), TTT (time to trigger, triggered time), hysteresis (time-delay), HO threshold (handoff threshold), CIO (cell individual offset) etc., initially can set the employing default value, in the optimizing cells process, can also constantly adjust above-mentioned parameter.
In the embodiment of the invention, when defining the new adjacent area adjacent with this sub-district, relation at new adjacent area and this sub-district, preserve relevant with new adjacent area adjacent cell relation information, can realize the optimization of cyberrelationship according to this adjacent cell relation information relevant with new adjacent area, help optimizing cells, thereby improve user terminal speech quality and user satisfaction.
Referring to Fig. 4, be the apparatus structure schematic diagram of the generation adjacent cell relation information of the embodiment of the invention four.
The device of the generation adjacent cell relation information of present embodiment comprises:
Judging unit 41 is used for judging according to the neighboring BS information that the terminal of first sub-district sends whether second sub-district is the new adjacent area of first sub-district.Preferably, described judging unit 41 mainly comprises:
Receiving element 411 is used for the measurement report of the cell ID that comprises second sub-district that receiving terminal sends;
In this example, when described second sub-district and described first sub-district belong to same system, the cell ID of second sub-district in the measurement report that described receiving element receives is PHY_ID, and the described adjacent cell relation information relevant with second sub-district comprises TAC information and/or frequency information.
When described second sub-district and described first sub-district belong to same system, when being the LTE system, the cell ID of second sub-district in the described measurement report is PHY_ID, at this moment, if identical frequency is used with second sub-district in first sub-district, the frequency information of second sub-district can be preserved also and can not preserve, if different frequencies is used with second sub-district in first sub-district, the frequency information of second sub-district then must be preserved, and alternatively, can also preserve the TAC information of second sub-district.
Judge performance element 412, when not comprising the cell ID of described second sub-district in the neighborhood region correlation chart that preserve base station under described first sub-district, determine that second sub-district is the new adjacent area of first sub-district.
Preserve unit 42, be used for when described judging unit determines that described second sub-district is the new adjacent area of first sub-district, preserving the adjacent cell relation information relevant with second sub-district;
The adjacent cell relation information relevant with second sub-district that described preservation unit 42 is preserved comprises the combination in any of following parameter attribute: frequency information, TAC information, RAT information, ICIC, LB, the parameter that is used to switch.
In this example, when described second sub-district and described first sub-district belong to same system, the cell ID of second sub-district in the measurement report that described receiving element 411 receives is PHY_ID, and the described adjacent cell relation information relevant with second sub-district comprises TAC information and/or frequency information.
When described second sub-district and described first sub-district do not belong to same system, the cell ID of second sub-district in the measurement report that described receiving element 411 receives is a Base transceiver Station Identity Code, or scrambler, or the pseudo noise code side-play amount, the described adjacent cell relation information relevant with second sub-district comprises RAT information.
The embodiment of the invention three also provides a kind of evolution base station eNB, and this eNB comprises the device of the foregoing description four described generation neighborhood region correlation charts.
In sum, a kind of method, device and evolution base station of preserving neighborhood region correlation chart that the embodiment of the invention provides, when the new adjacent area adjacent with this sub-district found in monitoring, generate the NRT of corresponding this sub-district and described new adjacent area, can realize the optimization of cyberrelationship based on the neighborhood region correlation chart NRT that comprises above-mentioned attribute information, and then realize that neighboring interval carries out optimization processes such as Interference Control coordination and/or load balancing control rationally, exactly, thereby improve user terminal speech quality and user satisfaction.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, is to instruct relevant hardware to finish by computer program.Described program can be stored in the computer read/write memory medium, and this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims (12)

1. a method that saves adjacent cell relation information is characterized in that, comprising:
When the neighboring BS information that sends according to the terminal in first sub-district determines that second sub-district is the new adjacent area of first sub-district, preserve the adjacent cell relation information relevant with second sub-district;
The described adjacent cell relation information relevant with second sub-district comprises the combination in any of following parameter attribute: frequency information, tracing area code TAC information, wireless access technology RAT information, Inter-Cell Interference Coordination ICIC, load balancing LB, the parameter that is used to switch.
2. the method for claim 1 is characterized in that, the described neighboring BS information that sends according to the terminal in first sub-district determines that second sub-district is that the new adjacent area of first sub-district specifically comprises:
The measurement report of the cell ID that comprises second sub-district that receiving terminal sends;
When not comprising the cell ID of described second sub-district in the neighborhood region correlation chart that preserve base station under described first sub-district, determine that second sub-district is the new adjacent area of first sub-district.
3. method as claimed in claim 2 is characterized in that, when described second sub-district and described first sub-district belonged to same system, the cell ID of second sub-district in the described measurement report was sub-district physical label PHY_ID.
4. require described method as right 3, it is characterized in that, when described second sub-district and described first sub-district use different frequency, the described adjacent cell relation information relevant with second sub-district comprises frequency information.
5. method as claimed in claim 2, it is characterized in that, when described second sub-district and described first sub-district do not belong to same system, the cell ID of second sub-district in the described measurement report is a Base transceiver Station Identity Code, or scrambler, or the pseudo noise code side-play amount, the described adjacent cell relation information relevant with second sub-district comprises RAT information.
6. as any described method of claim of claim 1-5, it is characterized in that the adjacent cell relation information that described preservation is relevant with second sub-district is specially:
The described adjacent cell relation information relevant with second sub-district is kept among the neighborhood region correlation chart NRT.
7. a device that is used to save adjacent cell relation information is characterized in that, comprising:
Judging unit is used for judging according to the neighboring BS information that the terminal of first sub-district sends whether second sub-district is the new adjacent area of first sub-district;
Preserve the unit, be used for when described judging unit determines that described second sub-district is the new adjacent area of first sub-district, preserving the adjacent cell relation information relevant with second sub-district;
The described adjacent cell relation information relevant with second sub-district comprises the combination in any of following parameter attribute: frequency information, tracing area code TAC information, wireless access technology RAT information, Inter-Cell Interference Coordination ICIC, load balancing LB, the parameter that is used to switch.
8. device as claimed in claim 7 is characterized in that judging unit comprises:
Receiving element is used for the measurement report of the cell ID that comprises second sub-district that receiving terminal sends;
Judge performance element, when not comprising the cell ID of described second sub-district in the neighborhood region correlation chart that preserve base station under described first sub-district, determine that second sub-district is the new adjacent area of first sub-district.
9. device as claimed in claim 8 is characterized in that, when described second sub-district and described first sub-district belonged to same system, the cell ID of second sub-district in the measurement report that described receiving element receives was sub-district physical label PHY_ID.
10. device as claimed in claim 9 is characterized in that, when described second sub-district and described first sub-district use different frequency, the adjacent cell relation information relevant with second sub-district that described preservation unit is preserved comprises frequency information.
11. device as claimed in claim 8, it is characterized in that, when described second sub-district and described first sub-district do not belong to same system, the cell ID of second sub-district in the measurement report that described receiving element receives is a Base transceiver Station Identity Code, or scrambler, or the pseudo noise code side-play amount, the adjacent cell relation information relevant with second sub-district that described preservation unit is preserved comprises RAT information.
12. an evolution base station is characterized in that described evolution base station comprises the device as any described generation adjacent cell relation information of claim 7 to 11.
CN200810219240A 2008-11-19 2008-11-19 Method, device and evolution base station for saving adjacent cell relation information Pending CN101742612A (en)

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