CN104320799A - Cell parameter collocation method and device - Google Patents
Cell parameter collocation method and device Download PDFInfo
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- CN104320799A CN104320799A CN201410549592.2A CN201410549592A CN104320799A CN 104320799 A CN104320799 A CN 104320799A CN 201410549592 A CN201410549592 A CN 201410549592A CN 104320799 A CN104320799 A CN 104320799A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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Abstract
The invention relates to the technical field of mobile communication. According to the cell parameter collocation method and device, when a base station collocates cell parameters, the base station sends a cell parameter collocation request to a base station cell parameter controller, and the base station cell parameter controller processes the base stations in the coverage area one by one according to the request time sequence; the base station cell parameter controller acquires the cell parameters collocated for the adjacent base station which simultaneously collocates cell parameters with the base station, and the base station cell parameter controller collocates cell parameters for the base station after eliminating the cell parameters collocated for the adjacent base station or notifies the base station so as to enable the base station to eliminate the cell parameters when collocating the cell parameters. By means of the cell parameter collocation method, the mutual interference due to the fact that the same cell parameters are collocated for a plurality of base stations when the base stations collocate cell parameters in the same time can be avoided.
Description
Technical field
The present invention relates to mobile communication technology field, particularly relate to a kind of cell parameter configuration method and device.
Background technology
Home eNodeB is generally deployed in the areas such as family, hotel or factory, Home eNodeB has the features such as area coverage is little, number is numerous and dispose that ground is not fixed, cause needing SON (Self-Organizing Network, MANET) technical support, to reduce network operation cost, improve the automatic allocative abilities of cell parameter.
The problem of cell parameter configuration conflict can be there is when multiple Home eNodeB starts at the same time, and multiple Home eNodeB to start be a kind of very common phenomenon simultaneously, specifically can be divided into following several situation: 1) due to user behavior randomness, cause Home eNodeB startup or the behavior that restarts to present randomness, unavoidably occur Home eNodeB starting problem simultaneously; 2) recover power supply after residential building power-off to start causing a large amount of Home eNodeB simultaneously simultaneously; 3) when the scale of carrying out networking, simultaneously install multiple stage Home eNodeB time will face multiple Home eNodeB start simultaneously or roughly the same time starting problem; 4), when same producer Home eNodeB is periodically restarted, start facing a large amount of base stations simultaneously.
When Home eNodeB A electrifying startup, need to intercept with cognitive radio environment and finally complete base station parameter configuration, whole process need number minute just can complete, and during this period, A does not open radio-frequency devices, and namely adjacent area can not perceive the existence of A community.If the Home eNodeB B adjacent with A geographical position starts at this moment or restart, then because geographical position is adjacent, then A with the B wireless environment of intercepting is roughly the same, and does not listen to the existence of A community due to B, and result will cause the cell parameter configuration conflict of A and B.For GSM (Global System for Mobile Communication, global system for mobile communications) and TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, TD SDMA) system, the identical working frequency points of possible configuration, for LTE (Long Term Evolution, Long Term Evolution) system, then possible configuration identical PCI (Physical Cell Identity, Physical Cell Identifier), cause PCI to conflict to produce, finally cause two mutual strong jammings of Home eNodeB.This type of phenomenon will exist in a large number in existing network.
In sum, when Home eNodeB adjacent in prior art starts at the same time, identical cell parameter can be configured, cause producing interference between neighboring home base station.
Summary of the invention
The embodiment of the present invention provides a kind of cell parameter configuration method and device, in order to solve Home eNodeB adjacent in prior art start at the same time time, identical cell parameter can be configured, cause the problem producing interference between neighboring home base station.
A kind of cell parameter configuration method that the embodiment of the present invention provides, comprising:
Base station cell parameter controller, after the cell parameter configuring request receiving the first base station transmission, obtains the historical record of the cell parameter configuring request that described base station cell parameter controller is preserved;
Described base station cell parameter controller is according to the historical record of preserved cell parameter configuring request, determine whether received the second base station and send cell parameter configuring request receiving in the predetermined time period before described cell parameter configuring request, and described second base station is the adjacent base station of described first base station; Wherein, described second base station is one or more;
If, then described base station cell parameter controller sends a notification message to described first base station, carry the cell parameter that described second base station configures in described notification message, described notification message is in order to indicate the cell parameter got rid of described second base station during described first allocating cell, base station parameter and configure; Or the cell parameter that described second base station configures by described base station cell parameter controller is described first allocating cell, base station parameter after getting rid of, and the described cell parameter of configuration is sent to described first base station.
Preferably, the method also comprises:
If received the cell parameter configuring request that described second base station sends in the predetermined time period of described base station cell parameter controller before the cell parameter configuring request receiving described first base station transmission, but described second base station is not the adjacent base station of described first base station, then: described base station cell parameter controller sends a notification message to described first base station, the cell parameter that described second base station configures is carried in described notification message, described notification message is set to minimum in order to the priority of the cell parameter indicating described first base station and configured described second base station, or,
The priority of the cell parameter that described second base station configures by described base station cell parameter controller be set to minimum after, for cell parameter configuration is carried out in described first base station, and the described cell parameter of configuration is sent to described first base station.
Preferably, described predetermined time period for described first base station initiated time arrive the time span of opening needed for downlink radio frequency device from power on.
Preferably, if described base station cell parameter controller judges that described second base station meets the following conditions, then determine that described second base station is the adjacent base station of described first base station:
The Neighboring Cell List of described second base station and the Neighboring Cell List of described first base station have common factor; Or,
Distance between described second base station and described first base station is less than the twice of described first base station power covering radius.
The embodiment of the present invention is a kind of cell parameter configuration method also, and the method comprises:
First base station sends the first cell parameter configuring request to base station cell parameter controller;
Described first base station receives the notification message that described base station cell parameter controller returns according to described cell parameter configuring request;
If indicate described first base station in described notification message to get rid of the cell parameter that the second base station configures from candidate cell parameter, the cell parameter that then the second base station configures by described first base station carries out cell parameter configuration after getting rid of, and the cell parameter of configuration is sent to described base station cell parameter controller; If indicate the cell parameter of described first base station configuration in described notification message, then the cell parameter that described first base station indicates according to described notification message carries out cell parameter configuration; Wherein, described second base station is one or more.
Preferably, if the priority indicating the cell parameter that described second base station configures by described first base station in described notification message is set to minimum, the priority of cell parameter that then described second base station configures by described first base station be set to minimum after, carry out cell parameter configuration.
The embodiment of the present invention provides a kind of cell parameter inking device, and this device comprises:
Acquiring unit, for after the cell parameter configuring request receiving the first base station transmission, obtains the historical record of the cell parameter configuring request that described base station cell parameter controller is preserved;
Determining unit, for the historical record according to preserved cell parameter configuring request, determine whether received the second base station and send cell parameter configuring request receiving in the predetermined time period before described cell parameter configuring request, and described second base station is the adjacent base station of described first base station; Wherein, described second base station is one or more; If, then send a notification message to described first base station, carry the cell parameter that described second base station configures in described notification message, described notification message is in order to indicate the cell parameter got rid of described second base station during described first allocating cell, base station parameter and configure; Or the cell parameter configured described second base station is described first allocating cell, base station parameter after getting rid of, and the described cell parameter of configuration is sent to described first base station.
Preferably, described determining unit also for:
If received the cell parameter configuring request that described second base station sends in the predetermined time period before the cell parameter configuring request receiving described first base station transmission, but described second base station is not the adjacent base station of described first base station, then: send a notification message to described first base station, carry the cell parameter that described second base station configures in described notification message, described notification message is set to minimum in order to the priority of the cell parameter indicating described first base station and configured described second base station; Or,
The priority of the cell parameter that described second base station is configured be set to minimum after, for cell parameter configuration is carried out in described first base station, and the described cell parameter of configuration is sent to described first base station.
Preferably, described predetermined time period for described first base station initiated time arrive the time span of opening needed for downlink radio frequency device from power on.
Preferably, described determining unit also for:
If judge, described first base station and described second base station meet the following conditions, then determine that described second base station is the adjacent base station of described first base station:
The Neighboring Cell List of described second base station and the Neighboring Cell List of described first base station have common factor; Or,
Distance between described second base station and described first base station is less than the twice of described first base station power covering radius.
The embodiment of the present invention also provides a kind of cell parameter inking device, and this device comprises:
Transmitting element, for sending the first cell parameter configuring request to base station cell parameter controller;
Dispensing unit, for receiving the notification message that described base station cell parameter controller returns according to described cell parameter configuring request; If indicate described first base station in described notification message to get rid of the cell parameter that the second base station configures from candidate cell parameter, the cell parameter that then the second base station configures by described first base station carries out cell parameter configuration after getting rid of, and the cell parameter of configuration is sent to described base station cell parameter controller; If indicate the cell parameter of described first base station configuration in described notification message, then the cell parameter that described first base station indicates according to described notification message carries out cell parameter configuration; Wherein, described second base station is one or more.
Preferably, described dispensing unit also for:
If the priority indicating the cell parameter that described second base station configures by described first base station in described notification message is set to minimum, then the priority of the cell parameter described second base station configured be set to minimum after, carry out cell parameter configuration.
According to the method and apparatus that the embodiment of the present invention provides, base station is when allocating cell parameter, send cell parameter request to base station cell parameter controller, base station cell parameter controller, to the time sequencing of the base station in its coverage according to request, processes one by one.The cell parameter that the adjacent base station that base station cell parameter controller obtains and cell parameter configuration is carried out in this base station simultaneously configures, the cell parameter that this adjacent base station configures by base station cell parameter controller is this allocating cell, base station parameter after getting rid of, or notify this base station, so that this cell parameter is got rid of when allocating cell parameter in this base station.By this method, can avoid multiple base station at one time allocating cell parameter time owing to being configured with identical cell parameter, cause the problem interfered with each other.
Accompanying drawing explanation
A kind of cell parameter configuration method flow chart that Fig. 1 provides for the embodiment of the present invention;
The another kind of cell parameter configuration method flow chart that Fig. 2 provides for the embodiment of the present invention;
A kind of cell parameter inking device structure chart that Fig. 3 provides for the embodiment of the present invention;
The another kind of cell parameter inking device structure chart that Fig. 4 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with Figure of description, the embodiment of the present invention is described in detail.
As shown in Figure 1, a kind of cell parameter configuration method flow chart that the embodiment of the present invention provides, the method comprises:
Step 101: base station cell parameter controller, after the cell parameter configuring request receiving the first base station transmission, obtains the historical record of the cell parameter configuring request that described base station cell parameter controller is preserved;
Step 102: described base station cell parameter controller is according to the historical record of preserved cell parameter configuring request, determine whether received the second base station and send cell parameter configuring request receiving in the predetermined time period before described cell parameter configuring request, and described second base station is the adjacent base station of described first base station; Wherein, described second base station is one or more;
Step 103: if, then described base station cell parameter controller sends a notification message to described first base station, carry the cell parameter that described second base station configures in described notification message, described notification message is in order to indicate the cell parameter got rid of described second base station during described first allocating cell, base station parameter and configure; Or the cell parameter that described second base station configures by described base station cell parameter controller is described first allocating cell, base station parameter after getting rid of, and the described cell parameter of configuration is sent to described first base station.
In the embodiment of the present invention, the first base station or the second base station include but not limited to the low power base station such as Home eNodeB, micro-base station, femto base station.First base station refers generally to just in low power base station such as the Home eNodeB of allocating cell parameter, micro-base station, femto base stations, and the second base station refers generally to be configured with cell parameter, but also do not open the low power base station such as the Home eNodeB of radio-frequency devices, micro-base station, femto base station.Base station cell parameter controller can be an independent equipment, also can be in a base station integrated.
First base station initiated time first intercept the radio environment information of surrounding, and send cell parameter configuring request to base station cell parameter controller.The cell parameter of configuration is generally one or more of following parameter: frequency; CI (Cell Identify, cell ID); Physical-layer cell identifier PCI; BSIC (Base Station Identity Code; Base station identity code); Scrambler.
First base station determines which kind of cell parameter of configuration according to worked communication system.Such as, for gsm system, the cell parameter of the first base station configuration is BCCH (Broadcast Control Channel, Broadcast Control Channel) frequency, BSIC; For TD-SCDMA system, the cell parameter of configuration is dominant frequency point and scrambler; For LTE system, the cell parameter of configuration is then frequency, PCI.
The radio environment information that first base station listens to comprises the neighboring BS information belonging to the community of same communication system or different communication with this first base station, includes but not limited to the frequency of CI and this cell configuration, scrambler, BSIC etc. in this neighboring BS information.The geographical location information of the first base station also can be comprised in radio environment information.Also can comprise the elevation information of the transmitting antenna of the first base station in the geographical location information of the first base station, the static configuration parameter that this information can be used as the first base station together reports base station cell parameter controller with cell parameter configuration request message.
Base station cell parameter controller obtains the historical record of the cell parameter configuring request that base station cell parameter controller is preserved after receiving the cell parameter configuring request of the first base station transmission.All cell parameter configuring request that base station cell parameter controller receives are contained in the historical record of cell parameter configuring request.
Base station cell parameter controller is according to the time of the cell parameter configuring request received, the cell parameter configuring request that priority treatment first receives, each process simultaneously cell parameter configuring request also records the cell parameter be configured, for the first base station screening of also non-allocating cell parameter, can ensure that the first base station is when allocating cell parameter by this method, the cell parameter that second base station that simultaneously can not start with it configures repeats.
Base station cell parameter controller is after the cell parameter configuring request receiving the first base station transmission, the cell parameter configuring request that second base station of can and preserve sends compares, judge that whether receiving the second base station in the predetermined time period before the cell parameter configuring request receiving the first base station transmission sends cell parameter configuring request, and determine that described second base station is the adjacent base station of described first base station; Wherein, described second base station is one or more.Preferably, predetermined time period for described first base station initiated time arrive the time span of opening needed for downlink radio frequency device from power on, in order to reduce erroneous judgement, can also add on the basis of above-mentioned predetermined time period that the time delay of cell parameter configuring request process, Home eNodeB are to the chain-circuit time delay etc. of base station cell parameter controller, revise.
Base station cell parameter controller defines at least one second base station and also sent community parameter-configuring request in this predetermined time period, and now base station cell parameter controller can determine that the first base station and the second base station are electrifying startups at the same time.The first base station simultaneously started and the second base station are when allocating cell parameter, and the cell parameter of configuration may be identical.If the second base station is the adjacent base station of the first base station, the first base station and second base station of configuration same cells parameter will interfere with each other.
In order to avoid the generation of this situation, now base station cell parameter controller can send a notification message to the first base station, carry the cell parameter that described second base station configures in described notification message, described notification message is in order to indicate the cell parameter got rid of described second base station during described first allocating cell, base station parameter and configure; Or, after cell parameter that described second base station configures by described base station cell parameter controller is got rid of, for described first allocating cell, base station parameter, the cell parameter of configuration is sent to the first base station.
If the second base is not the adjacent base station of the first base station, the first base station and second base station of configuration same cells parameter can not interfere with each other in theory, and now the first base station can configure the cell parameter that the second base station has been configured.
First base station, when allocating cell parameter, can listen to the multiple cell parameters meeting the first base station operation condition.These cell parameters can be divided into multiple priority according to factors such as intercepting level, operating frequency, interference strength by the first base station, select the cell parameter that best, in order to avoid unnecessary interference, the priority of the cell parameter that described second base station configures is set to minimum by the first base station.
Concrete, base station cell parameter controller sends a notification message to described first base station, carry the cell parameter that described second base station configures in described notification message, described notification message is set to minimum in order to the priority of the cell parameter indicating described first base station and configured described second base station; Or,
The priority of the cell parameter that described second base station configures by base station cell parameter controller be set to minimum after, for cell parameter configuration is carried out in described first base station, and the described cell parameter of configuration is sent to described first base station and the cell parameter of configuration is sent to the first base station.
Or, base station cell parameter controller by the cell parameter listened to according to intercepting level, operating frequency, after the factors such as interference strength are divided into multiple priority, determine the priority of the cell parameter that the second base station configures, the priority of the cell parameter below the priority of the cell parameter then configured the second base station and this cell parameter priority is re-set as the priority of one-level lower than original priority, be that cell parameter configuration is carried out in described first base station according to the cell parameter priority after resetting, and the described cell parameter of configuration is sent to described first base station and the cell parameter of configuration is sent to the first base station.Such as, the priority of cell parameter A, B, C and D is respectively the first priority, the first priority, the second priority and the 3rd priority, B is the cell parameter that the second base station uses, and the priority now resetting A, B, C and D is respectively the first priority, the second priority, the 3rd priority and the 4th priority.
Be described below in detail and how determine that the second base station is the adjacent base station of the first base station.
If base station cell parameter controller determines that the second base station meets following arbitrary condition, then determine that this second base station is the adjacent base station of the first base station:
The Neighboring Cell List of condition one, first base station and the Neighboring Cell List of the second base station have common factor
Above-mentioned Neighboring Cell List generally refers to switching Neighboring Cell List, and gravity treatment Neighboring Cell List also as a reference, all can be called Neighboring Cell List below.
In different communication systems, determine that the Neighboring Cell List of the first base station and the Neighboring Cell List of the second base station have the condition of common factor also different.
Such as, in gsm system, the Neighboring Cell List of the first base station and the Neighboring Cell List of the second base station have the condition of common factor to be following arbitrary:
1) community that the first base station is all equal with BSIC with there is BCCH frequency in the Neighboring Cell List of the second base station;
2) there is the BCCH frequency community all equal with BSIC in the first base station and the Neighboring Cell List of the second base station, and this community is Wang Nei community, the community that Ji Gai community is community in the parameter controller coverage of base station cell or is integrated with in the base station range of base station cell parameter controller, is all called Wang Nei community below;
3) there is the equal community of CI with the Neighboring Cell List of the second base station in the first base station;
4) there is the equal community of CI in the first base station and the Neighboring Cell List of the second base station, and this community is Wang Nei community.
Again such as, in LTE system, the Neighboring Cell List of the first base station and the Neighboring Cell List of the second base station have the condition of common factor to be following arbitrary:
1) there is frequency and all equal community of PCI thereof in the first base station and the Neighboring Cell List of the second base station;
2) there is frequency and all equal community of PCI thereof in the first base station and the Neighboring Cell List of the second base station, and when this community is Wang Nei community;
3) there is the equal community of E-UTRAN Cell Global Identifier (E-UTRAN Cell Global Identity is called for short ECGI) in the Neighboring Cell List of the first base station and the second base station;
4) there is the equal community of ECGI in the first base station and the Neighboring Cell List of the second base station, and the community that this community is community in the parameter controller coverage of base station cell or is integrated with in the base station range of base station cell parameter controller.
In other communication systems the Neighboring Cell List of the first base station and the Neighboring Cell List of the second base station have the condition of common factor and foregoing description similar, do not repeat them here.
Distance between condition two, first base station and the second base station is less than the twice of the first base station power covering radius
Distance between the first base station and described second base station refers to the geometric distance calculated according to the antenna height of the longitude of described first base station and latitude, the antenna height of described first base station, the longitude of described second base station and latitude, described second base station.Can increase a corrected range on the basis of the twice of the first base station power covering radius, concrete corrected range is determined by actual conditions for how many.
As shown in Figure 2, the embodiment of the present invention provides another kind of cell parameter configuration method, and the method comprises:
Step 201, the first base station sends the first cell parameter configuring request to base station cell parameter controller;
First base station initiated time first intercept the radio environment information of surrounding, determine which kind of cell parameter of configuration according to worked communication system, and send cell parameter configuring request to base station cell parameter controller.Configuration cell parameter with describe in said method identical.
Step 202, described first base station receives the notification message that described base station cell parameter controller returns according to described cell parameter configuring request;
After base station cell parameter controller receives the cell parameter configuring request of the first base station transmission, judge that whether receiving the second base station in the predetermined time period before the cell parameter configuring request receiving the first base station transmission sends cell parameter configuring request, and determine that described second base station is the adjacent base station of described first base station; Wherein, described second base station is one or more.According to different judged results, the notification message returned indicates the first base station to implement different operations.
Step 203, if indicate described first base station in described notification message to get rid of the cell parameter that the second base station configures from candidate cell parameter, the cell parameter that then the second base station configures by described first base station carries out cell parameter configuration after getting rid of, and the cell parameter of configuration is sent to described base station cell parameter controller; If indicate the cell parameter of described first base station configuration in described notification message, then the cell parameter that described first base station indicates according to described notification message carries out cell parameter configuration; Wherein, described second base station is one or more;
If the priority indicating the cell parameter that described second base station configures by described first base station in described notification message is set to minimum, the priority of cell parameter that then described second base station configures by described first base station be set to minimum after, carry out cell parameter configuration.
The process of the first base station cell parameter configuration is described below by specific embodiment.
Embodiment one:
In gsm system, the first base station and the second base station are Home eNodeB, and the cell parameter needing configuration is BCCH frequency, and concrete steps are as follows:
Step one: the first base station is intercepted radio environment information and sent cell parameter configuring request to base station cell parameter controller, wherein radio environment information is the neighboring BS information with the community of this first base station homologous ray, comprises the information such as CI, BCCH frequency, BSIC.
Step 2: base station cell parameter controller receives the cell parameter configuring request of the first base station and preserves this cell parameter configuring request, the cell parameter configuring request that base station cell parameter controller sends according to each Home eNodeB of time sequencing process, and each cell parameter configuring request processing one family base station simultaneously and send.
Step 3: base station cell parameter controller judges the cell parameter configuring request whether receiving the second base station transmission before the cell parameter configuring request moment receiving this first base station within Preset Time, if so, then performs step 5, otherwise performs step 4.
Step 4: the method configuring BCCH frequency when starting shooting power on by the first base station in prior art is the first allocating cell, base station parameter.
Such as, according to selection BCCH frequency interference level minimum principle, the BCCH frequency that the first base station selects interference level minimum in alternative BCCH frequency carries out cell parameter configuration.
Step 5: base station cell parameter controller judges that whether the second base station is the adjacent base station of the first base station, if so, then performs step 7, otherwise performs step 6.
Base station cell parameter controller judges that whether the second base station is the condition of the adjacent base station of the first base station and is: judge the first base station and second the common factor of Neighboring Cell List whether be empty, if not empty, then the second base station is the adjacent base station of the first base station, otherwise is not the adjacent base station of the first base station.
Particularly, when base station cell parameter controller judge the first base station and the second base station Neighboring Cell List meet below arbitrary condition, then think that the Neighboring Cell List of the first base station and the second base station exists and occur simultaneously:
1) community that the first base station is all equal with BSIC with there is BCCH frequency in the Neighboring Cell List of the second base station;
2) there is the BCCH frequency community all equal with BSIC in the first base station and the Neighboring Cell List of the second base station, and this community is Wang Nei community;
3) there is the equal community of CI with the Neighboring Cell List of the second base station in the first base station;
4) there is the equal community of CI in the first base station and the Neighboring Cell List of the second base station, and this community is Wang Nei community.
Neighboring Cell List mentioned in above-mentioned all conditions refers to switching Neighboring Cell List, i.e. BA2 table.
Step 6: in the prior art on cell parameter configuration method basis, under All factors being equal, preference will be give to level, the cell parameter outside the cell parameter that in the Preset Time before the cell parameter configuring request delivery time of prioritizing selection first base station, the second base station has configured.
Can be that the cell parameter that the second base station uses is notified the first base station by base station cell parameter controller, and indicate the first base station, in all candidate cell parameters, the priority of the cell parameter used the second base station is set to have with it one minimum in candidate cell parameter of equal conditions, cell parameter configuration is carried out subsequently in first base station, and the cell parameter configured is reported base station cell parameter controller.
The priority of the cell parameter of the second base station use also can be set to one minimum in the candidate cell parameter of equal conditions by base station cell parameter controller, then be the first allocating cell, base station parameter and notify the first base station, so that the cell parameter that the first base station sends according to base station cell parameter controller is configured.
Particularly, have the satisfactory BCCH frequency of A, B, C tri-, the second base station employs B, and their interference strength is A=B<C.Between A, B, C, the first base station prioritizing selection disturbs little BCCH frequency, eliminates C, and now in the equal situation of level of interference, the BCCH frequency outside the BCCH frequency that prioritizing selection second base station has used, now gets rid of B, last first base station selected A.Or A after A, is sent to the first base station according to above-mentioned rules selection by base station cell parameter controller.
Step 7: after the cell parameter used the second base station is got rid of, selects a cell parameter to be configured in candidate cell parameter.
Can be that the cell parameter that the second base station uses is notified the first base station by base station cell parameter controller, and indicate the first base station, in all candidate cell parameters, the cell parameter that second base station uses is excluded, cell parameter configuration is carried out subsequently in first base station, and the cell parameter configured is reported base station cell parameter controller.
Base station cell parameter controller is the first allocating cell, base station parameter and notifies the first base station, so that the cell parameter that the first base station sends according to base station cell parameter controller is configured after also the cell parameter that the second base station uses can being excluded.
Concrete, have the satisfactory BCCH frequency of A, B, C tri-, the second base station employs B, and their interference strength is A=B<C.Between A, B, C, the BCCH frequency that the second base station has used is preferentially got rid of in the first base station, now gets rid of B, then selects the BCCH frequency that interference is little, now in the equal situation of level of interference, eliminates C, last first base station selected A.Or A after A, is sent to the first base station according to above-mentioned rules selection by base station cell parameter controller.
Embodiment two:
In LTE system, the first base station and the second base station are Home eNodeB, and the cell parameter needing configuration is PCI, and concrete steps are as follows:
Step one: the first base station is intercepted radio environment information and sent cell parameter configuring request to base station cell parameter controller, wherein radio environment information is the neighboring BS information with the community of this first base station homologous ray, comprises the information such as CI, frequency, PCI.
Step 2: base station cell parameter controller receives the cell parameter configuring request of the first base station and preserves this cell parameter configuring request, base station cell parameter controller is according to each cell parameter configuring request of time sequencing process, and each process simultaneously cell parameter configuring request.
Step 3: base station cell parameter controller judges the cell parameter configuring request whether receiving the second base station transmission before the cell parameter configuring request moment receiving this first base station within Preset Time, if so, then performs step 5, otherwise performs step 4.
Step 4: by prior art first base station start power on time PCI allocation method be the first allocating cell, base station parameter.Such as, do not obscure according to not conflicting of agreement regulation the PCI configuration that principle completes the first base station, the method is prior art, therefore does not repeat them here.
Step 5: base station cell parameter controller judges that whether the second base station is the adjacent base station of the first base station, if so, then performs step 7, otherwise performs step 6.
Base station cell parameter controller judges that whether the second base station is the condition of the adjacent base station of the first base station and is:
Judge whether the distance between the first base station and the second base station is less than the first base station coverage radius distance twice, and if so, then the second base station is the adjacent base station of the first base station.
Step 6: in the prior art on cell parameter configuration method basis, under All factors being equal, preference will be give to level, the cell parameter outside the cell parameter that in the Preset Time before the cell parameter configuring request delivery time of prioritizing selection first base station, the second base station has configured.
Can be that the cell parameter that the second base station uses is notified the first base station by base station cell parameter controller, and indicate the first base station, in all candidate cell parameters, the priority of the cell parameter used the second base station is set to have with it one minimum in candidate cell parameter of equal conditions, cell parameter configuration is carried out subsequently in first base station, and the cell parameter configured is reported base station cell parameter controller.
The priority of the cell parameter of the second base station use also can be set to one minimum in the candidate cell parameter of equal conditions by base station cell parameter controller, then be the first allocating cell, base station parameter and notify the first base station, so that the cell parameter that the first base station sends according to base station cell parameter controller is configured.
Particularly, under meeting and not conflicting and do not obscure and meet with adjacent area the principle do not interfered with each other, have A, B two satisfactory PCI, the second base station employs B.Between A, B, the PCI outside the PCI that the first base station prioritizing selection second base station has used, now gets rid of B, last first base station selected A.Or A after A, is sent to the first base station according to above-mentioned rules selection by base station cell parameter controller.
Step 7: after the cell parameter used the second base station is got rid of, selects a cell parameter to be configured in candidate cell parameter.
Can be that the cell parameter that the second base station uses is notified the first base station by base station cell parameter controller, and indicate the first base station, in all candidate cell parameters, the cell parameter that second base station uses is excluded, cell parameter configuration is carried out subsequently in first base station, and the cell parameter configured is reported base station cell parameter controller.
Base station cell parameter controller is the first allocating cell, base station parameter and notifies the first base station, so that the cell parameter that the first base station sends according to base station cell parameter controller is configured after also the cell parameter that the second base station uses can being excluded.
Concrete, have A, B two or two satisfactory PCI of set, the second base station employs B.Between A, B, the PCI that the second base station has used is preferentially got rid of in the first base station, now gets rid of B, last first base station selected A.Or A after A, is sent to the first base station according to above-mentioned rules selection by base station cell parameter controller.
For said method flow process, the embodiment of the present invention also provides a kind of cell parameter inking device, and the particular content of this device can be implemented with reference to said method, does not repeat them here.
As shown in Figure 3, the embodiment of the present invention provides a kind of cell parameter inking device structure chart, and this device comprises:
Acquiring unit 301, for after the cell parameter configuring request receiving the first base station transmission, obtains the historical record of the cell parameter configuring request that described base station cell parameter controller is preserved;
Determining unit 302, for the historical record according to preserved cell parameter configuring request, determine whether received the second base station and send cell parameter configuring request receiving in the predetermined time period before described cell parameter configuring request, and described second base station is the adjacent base station of described first base station; Wherein, described second base station is one or more; If, then send a notification message to described first base station, carry the cell parameter that described second base station configures in described notification message, described notification message is in order to indicate the cell parameter got rid of described second base station during described first allocating cell, base station parameter and configure; Or the cell parameter configured described second base station is described first allocating cell, base station parameter after getting rid of, and the described cell parameter of configuration is sent to described first base station.
Preferably, described determining unit 302 also for:
If received the cell parameter configuring request that described second base station sends in the predetermined time period before the cell parameter configuring request receiving described first base station transmission, but described second base station is not the adjacent base station of described first base station, then: send a notification message to described first base station, carry the cell parameter that described second base station configures in described notification message, described notification message is set to minimum in order to the priority of the cell parameter indicating described first base station and configured described second base station; Or,
The priority of the cell parameter that described second base station is configured be set to minimum after, for cell parameter configuration is carried out in described first base station, and the described cell parameter of configuration is sent to described first base station.
Preferably, described predetermined time period for described first base station initiated time arrive the time span of opening needed for downlink radio frequency device from power on.
Preferably, described determining unit 302 also for:
If judge, described first base station and described second base station meet the following conditions, then determine that described second base station is the adjacent base station of described first base station:
The Neighboring Cell List of described second base station and the Neighboring Cell List of described first base station have common factor; Or,
Distance between described second base station and described first base station is less than the twice of described first base station power covering radius.
As shown in Figure 4, the embodiment of the present invention also provides a kind of cell parameter inking device, and this device comprises:
Transmitting element 401, for sending the first cell parameter configuring request to base station cell parameter controller;
Dispensing unit 402, for receiving the notification message that described base station cell parameter controller returns according to described cell parameter configuring request; If indicate described first base station in described notification message to get rid of the cell parameter that the second base station configures from candidate cell parameter, the cell parameter that then the second base station configures by described first base station carries out cell parameter configuration after getting rid of, and the cell parameter of configuration is sent to described base station cell parameter controller; If indicate the cell parameter of described first base station configuration in described notification message, then the cell parameter that described first base station indicates according to described notification message carries out cell parameter configuration; Wherein, described second base station is one or more.
Preferably, described dispensing unit 402 also for:
If the priority indicating the cell parameter that described second base station configures by described first base station in described notification message is set to minimum, then the priority of the cell parameter described second base station configured be set to minimum after, carry out cell parameter configuration.
It can be seen from the above, in the embodiment of the present invention, base station is when allocating cell parameter, send cell parameter request to base station cell parameter controller, base station cell parameter controller, to the time sequencing of the base station in its coverage according to request, processes one by one.Base station cell parameter controller is by judging, obtain and carry out cell parameter configuration with this base station simultaneously, and be the cell parameter that the base station of the adjacent base station of this base station configures, base station cell parameter controller is this allocating cell, base station parameter after being got rid of by this cell parameter, or notify this base station, so that this cell parameter is got rid of when allocating cell parameter in this base station.By this method, can avoid multiple base station at one time allocating cell parameter time owing to being configured with identical cell parameter, cause the problem interfered with each other.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (12)
1. a cell parameter configuration method, is characterized in that, the method comprises:
Base station cell parameter controller, after the cell parameter configuring request receiving the first base station transmission, obtains the historical record of the cell parameter configuring request that described base station cell parameter controller is preserved;
Described base station cell parameter controller is according to the historical record of preserved cell parameter configuring request, determine whether received the second base station and send cell parameter configuring request receiving in the predetermined time period before described cell parameter configuring request, and described second base station is the adjacent base station of described first base station; Wherein, described second base station is one or more;
If, then described base station cell parameter controller sends a notification message to described first base station, carry the cell parameter that described second base station configures in described notification message, described notification message is in order to indicate the cell parameter got rid of described second base station during described first allocating cell, base station parameter and configure; Or the cell parameter that described second base station configures by described base station cell parameter controller is described first allocating cell, base station parameter after getting rid of, and the described cell parameter of configuration is sent to described first base station.
2. the method for claim 1, is characterized in that, the method also comprises:
If received the cell parameter configuring request that described second base station sends in the predetermined time period of described base station cell parameter controller before the cell parameter configuring request receiving described first base station transmission, but described second base station is not the adjacent base station of described first base station, then: described base station cell parameter controller sends a notification message to described first base station, the cell parameter that described second base station configures is carried in described notification message, described notification message is set to minimum in order to the priority of the cell parameter indicating described first base station and configured described second base station, or,
The priority of the cell parameter that described second base station configures by described base station cell parameter controller be set to minimum after, for cell parameter configuration is carried out in described first base station, and the described cell parameter of configuration is sent to described first base station.
3. method as claimed in claim 1 or 2, is characterized in that, described predetermined time period for described first base station initiated time arrive time span needed for unlatching downlink radio frequency device from power on.
4. method as claimed in claim 1 or 2, is characterized in that, if described base station cell parameter controller judges that described second base station meets the following conditions, then determine that described second base station is the adjacent base station of described first base station:
The Neighboring Cell List of described second base station and the Neighboring Cell List of described first base station have common factor; Or,
Distance between described second base station and described first base station is less than the twice of described first base station power covering radius.
5. a cell parameter configuration method, is characterized in that, the method comprises:
First base station sends the first cell parameter configuring request to base station cell parameter controller;
Described first base station receives the notification message that described base station cell parameter controller returns according to described cell parameter configuring request;
If indicate described first base station in described notification message to get rid of the cell parameter that the second base station configures from candidate cell parameter, the cell parameter that then the second base station configures by described first base station carries out cell parameter configuration after getting rid of, and the cell parameter of configuration is sent to described base station cell parameter controller; If indicate the cell parameter of described first base station configuration in described notification message, then the cell parameter that described first base station indicates according to described notification message carries out cell parameter configuration; Wherein, described second base station is one or more.
6. method as claimed in claim 5, it is characterized in that, if the priority indicating the cell parameter that described second base station configures by described first base station in described notification message is set to minimum, the priority of cell parameter that then described second base station configures by described first base station be set to minimum after, carry out cell parameter configuration.
7. a cell parameter inking device, is characterized in that, this device comprises:
Acquiring unit, for after the cell parameter configuring request receiving the first base station transmission, obtains the historical record of the cell parameter configuring request that described base station cell parameter controller is preserved;
Determining unit, for the historical record according to preserved cell parameter configuring request, determine whether received the second base station and send cell parameter configuring request receiving in the predetermined time period before described cell parameter configuring request, and described second base station is the adjacent base station of described first base station; Wherein, described second base station is one or more; If, then send a notification message to described first base station, carry the cell parameter that described second base station configures in described notification message, described notification message is in order to indicate the cell parameter got rid of described second base station during described first allocating cell, base station parameter and configure; Or the cell parameter configured described second base station is described first allocating cell, base station parameter after getting rid of, and the described cell parameter of configuration is sent to described first base station.
8. device as claimed in claim 7, is characterized in that, described determining unit also for:
If received the cell parameter configuring request that described second base station sends in the predetermined time period before the cell parameter configuring request receiving described first base station transmission, but described second base station is not the adjacent base station of described first base station, then: send a notification message to described first base station, carry the cell parameter that described second base station configures in described notification message, described notification message is set to minimum in order to the priority of the cell parameter indicating described first base station and configured described second base station; Or,
The priority of the cell parameter that described second base station is configured be set to minimum after, for cell parameter configuration is carried out in described first base station, and the described cell parameter of configuration is sent to described first base station.
9. as claimed in claim 7 or 8 device, is characterized in that, described predetermined time period for described first base station initiated time arrive time span needed for unlatching downlink radio frequency device from power on.
10. as claimed in claim 7 or 8 device, is characterized in that, described determining unit also for:
If judge, described first base station and described second base station meet the following conditions, then determine that described second base station is the adjacent base station of described first base station:
The Neighboring Cell List of described second base station and the Neighboring Cell List of described first base station have common factor; Or,
Distance between described second base station and described first base station is less than the twice of described first base station power covering radius.
11. 1 kinds of cell parameter inking devices, is characterized in that, this device comprises:
Transmitting element, for sending the first cell parameter configuring request to base station cell parameter controller;
Dispensing unit, for receiving the notification message that described base station cell parameter controller returns according to described cell parameter configuring request; If indicate described first base station in described notification message to get rid of the cell parameter that the second base station configures from candidate cell parameter, the cell parameter that then the second base station configures by described first base station carries out cell parameter configuration after getting rid of, and the cell parameter of configuration is sent to described base station cell parameter controller; If indicate the cell parameter of described first base station configuration in described notification message, then the cell parameter that described first base station indicates according to described notification message carries out cell parameter configuration; Wherein, described second base station is one or more.
12. devices as claimed in claim 11, is characterized in that, described dispensing unit also for:
If the priority indicating the cell parameter that described second base station configures by described first base station in described notification message is set to minimum, then the priority of the cell parameter described second base station configured be set to minimum after, carry out cell parameter configuration.
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