CN101835168B - Method, device and system for performing processing by using terminal history information - Google Patents
Method, device and system for performing processing by using terminal history information Download PDFInfo
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- CN101835168B CN101835168B CN2009100794838A CN200910079483A CN101835168B CN 101835168 B CN101835168 B CN 101835168B CN 2009100794838 A CN2009100794838 A CN 2009100794838A CN 200910079483 A CN200910079483 A CN 200910079483A CN 101835168 B CN101835168 B CN 101835168B
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Abstract
The invention discloses a method, a device and a system for performing processing by using terminal history information. In the scheme, PCI or PCT and frequency point information of a history cell is/are added in the terminal history information, thus, a base station can acquire the PCI or PCT and frequency point information of the history cell where a terminal resides according to the terminal history information carried in switching request message after receiving the switching request message so as to perform PCT related processing according to the PCI of the history cell. Therefore, the base station fully acquires the PCI of peripheral cells of a service cell of the base station through the PCI contained in the terminal history information so as to completely collect the PCI acquired by the base station and used by the peripheral cells as much as possible and improve the success rate that the base station in the dense coverage area automatically configures the PCI by adopting a distributed method. The PCI can be modified in advance by judging the potential cells with PCI conflict to reduce the probability of the PCI conflict between the cells so as to reduce the dropped call rate and improve the switching success rate.
Description
Technical field
The present invention relates to moving communicating field, refer to especially a kind of method of utilizing terminal history information to be processed, Apparatus and system.
Background technology
Mobile communication technology develops into Long Term Evolution (LTE, the Long Term Evolution) stage, can have a lot of evolution base stations (eNB, E-UTRAN NodeB).A large amount of eNB like this, if adopt traditional manual maintenance method, the workload of installing, configure, safeguarding is very big, cost also can be very high, in the situation that operation maintenance cost more and more is taken seriously at present, the concept of self-organizing network (SON, Self OrganizingNetwork) has been proposed.So-called SON, can provide the functions such as Auto-mounting, configuration, maintenance exactly, reduces the workload of manual maintenance, thereby can greatly reduce the mobile communications network of operation maintenance cost.Cell physical address (PCI, Physical Cell Identity) configuration automatically is one of important content of SON.PCI is the basic configuration parameter of wireless area, always has 504 distributable PCI in the LTE communication system.
When a new eNB joins in mobile communications network, just need to respectively distribute a PCI for all communities that this eNB supports, produce interference to avoid between each community reaching between adjacent area separately, community.Usually, suitable PCI distributes when the network planning, and this is also the part work of base station initial configuration.The distribution of PCI will guarantee not clash at the PCI of Nei Ge community, certain overlay area as far as possible, between the community that can guarantee so geographically to be close to, does not produce interference.
At present, the method for PCI allocation mainly is divided into centralized and distributed two kinds automatically.Centralized is exactly by specific PCI value of operation and maintenance (OAM, Operations And Maintenance) notice eNB, the PCI of eNB using this PCI value as new community; Distributed is the list of a PCI usable levels of OAM notice eNB, after then eNB removes the PCI restriction set from this PCI usable levels list, and the random PCI of a PCI value as new community that select in remaining PCI value from the list of PCI usable levels.Wherein, the PCI restriction set of eNB comprises: by subscriber equipment (UE, User Equipment), reported; By adjacency eNB, by X2 interface, reported; By other implementation method, obtain, for example, the eNB automatic monitoring records, by obtaining PCI collection that peripheral cell used with upper type, being the PCI restriction set.
In practical application, for example, because the PCI collection that eNB has been used by the peripheral cell obtained with upper type is limited,, it is fewer that UE reports, the limited amount of X2 interface, the eNB reasons the such as automatically scope of monitoring is smaller, the PCI collection that all can cause peripheral cell to use is collected imperfect.Like this, the content that will cause the PCI restriction set is sufficiently complete, and therefore, the PCI that the PCI that the eNBWei Xin community is selected just may have been used with peripheral cell is identical, thereby causes the PCI conflict of minizone.
Owing to only having 504 distributable PCI in the LTE communication system, mobile communications network can carry out the optimizing neighbor list function automatically, makes the neighboring BS relationship of community change; Perhaps introduce new eNB; Perhaps the situation of the PCI conflict of Liang Ge community, therefore, just inevitably can occur in the automatic unreasonable allocation of PCI etc., and the PCI of two co-frequency cells is identical, and geographically is not separated by enough far.Like this, just cause the UE in these two cell coverage area intermediate zones can't distinguish the signal from the Liang Ge community, thereby cause the signal of certain area unavailable, form and cover black hole, increased cutting off rate; Perhaps, frequency and the PCI of De Liangge adjacent area, a certain community are identical, cause the switching in a large number failure of Cong Gai community to these two adjacent areas.The carrier wave frequency information of E-UTRA community is used absolute wireless frequency channel number (EARFCN, E-UTRA Absolute Radio Frequency Channel Number) mean, for frequency division multiplexing (FDD, Frequency Division Duplex) community of pattern, mean respectively the up-downgoing frequency point information of community with up EARFCN and descending EARFCN; For the community of time division multiplexing (TDD, Time DivisionDuplex) pattern, with same EARFCN, mean the up-downgoing frequency point information of community.
At present, PCI conflict is to find what conflicted with the PCI of existing adjacent area in new adjacent area when neighboring BS relationship is optimized, or adds up cutting off rate and handover success rate finds that the PCI of minizone conflicts by webmaster.The PCI conflict can cause very large harm to the performance of mobile communications network, therefore, must find and process in time the PCI conflict, especially in the situation that family expenses base station (Home NodeB) existence.Increase newly and close because base station from home occurs frequently in meeting, and the neighboring BS relationship variation can be more frequent, thereby may cause the PCI conflict of minizone, need to the PCI clashed be modified.Therefore, finding in time and process PCI conflicts just particularly important.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method of utilizing terminal history information to be processed, Apparatus and system, and the PCI collection that the peripheral cell that base station is obtained has been used is collected as far as possible complete.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of method of utilizing terminal history information to be processed, the method comprises: receive handover request message, the terminal history information carried by handover request message, obtain the cell physical address PCI of the resident historical community of the terminal that comprises in described terminal history information; Carry out the PCI relevant treatment according to described PCI.
Described handover request message comes from: source base station, or Mobility Management Entity MME.
In described terminal history information, further comprise: the subdistrict frequency point information of the historical community that terminal is resident.
Described PCI relevant treatment is that PCI configures automatically; Describedly according to described PCI, carry out the PCI relevant treatment, comprising: obtain the available PCI collection of PCIDe Xin to be configured community, and obtain the PCI collection that the peripheral cell of PCIDe Xin to be configured community has been used; The PCI and the described PCI used that comprise in described terminal history information are gathered also, obtain the PCI restriction set of new community; Described available PCI collection is removed to described PCI restriction set, obtain the PCI option set of new community; Select a PCI in described PCI option set, as the PCI of new community.
Described by the PCI that comprises in described terminal history information and the described PCI set of having used also, comprise: in the described PCI comprised in the terminal history information obtained, choose the PCI of historical community of the setting quantity of the last resident mistake of terminal, by the PCI that chooses and the described PCI set of having used also;
In described terminal history information, further comprise: the subdistrict frequency point information of the historical community that terminal is resident; Described by the PCI that comprises in described terminal history information and the described PCI set of having used also, comprise: in the described PCI comprised in the terminal history information obtained, choose and PCIDe Xin to be allocated community with the PCI of historical community frequently, the PCI and the described PCI used that choose are gathered also.
In described terminal history information, further comprise: the subdistrict frequency point information of the historical community that terminal is resident; Described by the PCI that comprises in described terminal history information and the described PCI set of having used also, comprise: in the described PCI comprised in the terminal history information obtained, choose and same frequently, the PCI that set the historical community of quantity in PCIDe Xin to be allocated community, the PCI and the described PCI used that choose are gathered also.
In described terminal history information, further comprise: the subdistrict frequency point information of the historical community that terminal is resident; Described PCI relevant treatment is the PCI collision detection; Describedly according to described PCI, carry out the PCI relevant treatment, comprise: PCI and subdistrict frequency point information to described community compare, if there be the PCI situation identical with this jurisdiction district, base station with subdistrict frequency point information of PCI ,Huo identical with the subdistrict frequency point information community of community in discovery, determine and have potential PCI conflict; Otherwise, determine and conflict without PCI.
Described determine have potential PCI conflict after, further comprise: for the community that has potential PCI conflict, the notice respective base station is modified to PCI, perhaps, determine and exist the community of potential PCI conflict to be present in the terminal history information of same terminal, while perhaps having the community that one of them Shi Zhe base station, community of potential PCI conflict administers, add up the minimum number of cells of current served terminal resident mistake in the middle of the community that has potential PCI conflict, if there be the situation of number of cells lower than the multiplexing thresholding of PCI arranged, need PCI is modified, the notice respective base station is modified to PCI, if there is no number of cells is lower than the situation of the multiplexing thresholding of PCI arranged, will exist the cellular global identity of the community of potential PCI conflict to notify to OAM, OAM is according to the geography information of cellular global identity He Ge community, by OAM, determined whether PCI is modified, perhaps, by existing the cellular global identity of the community of potential PCI conflict to notify to OAM, by OAM, determined whether PCI is modified.
A kind of device that utilizes terminal history information to be processed, this device comprises: receiving element, resolution unit and PCI processing unit, wherein, described receiving element is for receiving handover request message; Described resolution unit for obtain in the terminal history information that described handover request message carries comprise the resident historical community of terminal PCI or PCI and frequency point information; Described PCI processing unit is for carrying out the PCI relevant treatment according to the PCI of described historical community or PCI and frequency point information.
A kind of system of utilizing terminal history information to be processed, this system comprises: the first base station and the second base station, wherein, described the first base station is for sending handover request message, the PCI that comprises historical community in the terminal history information carried in this handover request message or PCI and frequency point information to the second base station; Described the second base station obtains PCI or PCI and the frequency point information of the resident historical community of terminal for the terminal history information that carries by described handover request message, according to the PCI of described historical community or PCI and frequency point information, carries out the PCI relevant treatment.
In the present invention program, increase the PCI of historical community in terminal history information, like this, after handover request message is received in base station, the PCI of the historical community that the terminal that just can obtain wherein comprising according to the terminal history information carried in this handover request message is resident, thereby carry out the PCI relevant treatment according to the PCI of historical community, therefore, base station has fully obtained the PCI of the peripheral cell of this base station Serving cell by the PCI comprised in terminal history information, the PCI collection that the peripheral cell that base station is obtained has been used is collected as far as possible complete, can realize that Dui Zhe base station, base station Serving cell PCI configures automatically, when terminal history information further comprises the subdistrict frequency point information of the historical community that terminal is resident, can also avoid the PCI conflict of minizone, and then avoid the interference between community, the base station of having improved intensive overlay area adopts the success rate of the automatic PCI allocation of distributed method.By the judgement of the community to potential PCI conflict, can to PCI, modify in advance, reduce the probability of the PCI conflict of minizone, thereby reduced cutting off rate, and improved handover success rate, and then improved the operation performance of mobile communications network.
The accompanying drawing explanation
Fig. 1 utilizes terminal history information to carry out PCI relevant treatment flow chart in the present invention;
The structural representation that Fig. 2 is the historical cell information in terminal history information in the present invention;
Fig. 3 A is that in the present invention, the handover request message across the X2 interface switching sends schematic diagram;
Fig. 3 B is that in the present invention, the handover request message across the switching of S1 interface sends schematic diagram;
Fig. 4 utilizes terminal history information to carry out the system configuration schematic diagram of PCI relevant treatment in the present invention;
Fig. 5 utilizes terminal history information to carry out the apparatus structure schematic diagram of PCI relevant treatment in the present invention.
Embodiment
Terminal history information comprises terminal provided the relevant information of the historical community of service before migrating to Target cell for this terminal of activated state, specifically comprise cellular global identity, cell type and the terminal resident time span in the historical community of correspondence of historical community.The maintenance of terminal history information is completed by source base station.In switching flow, target BS can be received source base station or Mobility Management Entity (MME, MobilityManagement Entity) handover request message, carry terminal history information in this handover request message, target BS storage terminal historical information, for this terminal, switching is in the future prepared.
In the present invention, increase PCI or PCI and the subdistrict frequency point information of historical community in terminal history information, like this, after target BS is received handover request message, the PCI of the historical community that just can obtain wherein comprising according to the terminal history information carried in this handover request message or PCI and subdistrict frequency point information, thus carry out the PCI relevant treatment according to the PCI of historical community or PCI and subdistrict frequency point information.
Fig. 1 utilizes terminal history information to carry out PCI relevant treatment flow chart in the present invention, as shown in Figure 1, the specific implementation process of utilizing terminal history information to carry out the PCI relevant treatment comprises the following steps:
Step 101～step 102: terminal is to the source base station reporting measurement reports event at Serving cell place.After source base station is received measurement report event, according to handoff algorithms, determining need to be by terminal transfer to Target cell, source base station constructs handover request message, and be sent to the target BS at Target cell place by X2 interface or S1 interface, require target BS to prepare switchable resource.The resident historical cell information of the terminal comprised in the terminal history information carried in handover request message except the cellular global identity, cell type and the terminal that comprise historical community in the historical community of correspondence resident time span, the PCI or PCI and the subdistrict frequency point information that also comprise historical community, increase PCI or PCI and the subdistrict frequency point information of historical community in the resident historical cell information of the terminal in existing terminal history information, as shown in Figure 2.Wherein, subdistrict frequency point information refers to up frequency point information and the downlink frequency dot information of community, and PCI refers to the concrete physical address that historical community adopts.Across in X2 interface switching and the handover request message across the switching of S1 interface, all carrying terminal history information, the PCI that comprises historical community in this terminal history message or PCI and subdistrict frequency point information, as shown in Fig. 3 A and Fig. 3 B.Wherein, the handover request message across the X2 interface switching is sent to target BS by source base station; Handover request message across the switching of S1 interface is sent to MME, is sent to target BS by MME again by source base station.
In subsequent treatment, the resource that source base station can return according to target BS is prepared message and is determined whether that notification terminal is initiated to the switching of Target cell.
Step 103～step 104: target BS receives handover request message, and this handover request message can come from source base station, also can come from MME.The terminal history information that target BS carries by handover request message obtains PCI or PCI and the subdistrict frequency point information of the resident historical community of terminal, carry out the PCI relevant treatment according to the PCI of historical community or PCI and subdistrict frequency point information, as PCI configures automatically, PCI collision detection etc.
Terminal transfer is to other base stations, and described target BS is no longer for counterpart terminal provides service, and described target BS can be deleted the terminal history information of counterpart terminal.
The PCI of below take respectively configures automatically and the specific implementation of PCI collision detection is example, and realization of the present invention is further described.
Example one
Steps A 1: terminal is to source base station reporting measurement event report.
Steps A 2: after source base station is received measurement report event, according to handoff algorithms, determine terminal transfer to Target cell, source base station constructs handover request message, and be sent to the target BS at Target cell place by X2 interface or S1 interface, carry terminal history information in this handover request message, the resident historical cell information of the terminal comprised in this terminal history information resident time span, also comprises the PCI of historical community except the cellular global identity, cell type and the terminal that comprise historical community in the historical community of correspondence.
Steps A 3: target BS receives the handover request message that comes from source base station or MME, obtain and store the terminal history information carried in this handover request message, the PCI that comprises the resident historical community of terminal in this terminal history information, the PCI of target BS using the PCI of these historical communities as this base station peripheral cell.
Steps A 4: when base station, be that foregoing target BS is need to automatically distribute PCI for PCIDe Xin to be configured community the time, OAM provides the available PCI collection to base station, as OAM issues the available PCI collection of PCIDe Xin to be configured community according to certain planning principles of PCI and according to the demand of operator for this base station.
Steps A 5: base station by UE report, X2 interface reports and base station automatically the mode such as monitoring obtain the PCI collection that the peripheral cell of PCIDe Xin to be configured community has been used.
Steps A 6: base station merges steps A 3 with the PCI that steps A 5 obtains, and the PCI collection obtained after merging is as the PCI restriction set of new community, PCI restriction set while automatically being new cell configuration PCI.
Steps A 7: the available PCI collection that base station provides OAM is removed the PCI restriction set, obtains the PCI option set of new community; Then, base station is a PCI of random selection in this PCI option set, as the PCI of new community, and, to the selected PCI value in OAM notice Wei Xin community, if base station is selected unsuccessfully at random in this PCI option set, to OAM, notifies the automatic configuration failure of PCI of new community.
In order to increase the new community PCI success rate of configuration automatically, in steps A 6, in the PCI of the historical community comprised in the terminal history information that base station can obtain in steps A 3, only choose the PCI of historical community of the setting quantity of the last resident mistake of terminal, geographic range with the peripheral cell that dwindles new community, the PCI of this part PCI and steps A 5 acquisitions is merged, obtain the PCI restriction set of new community, thereby the success rate while selecting at random in the PCI option set of raising Zai Xin community, base station, improve the new community PCI success rate of configuration automatically.The concrete value of setting quantity can be arranged according to the needs of practical application.
Can further comprise the subdistrict frequency point information of the resident historical community of terminal in terminal history information, in terminal history information, comprise PCI and the subdistrict frequency point information of historical community.In steps A 6, in the PCI of the historical community comprised in the terminal history information that base station can obtain in steps A 3, only choose and the PCI of PCIDe Xin to be allocated community with historical community frequently, the PCI of this part PCI and steps A 5 acquisitions is merged, obtain the PCI restriction set of new community, so that PCI configures employing channeling to a certain degree automatically, thereby the success rate while selecting at random in the PCI option set of raising Zai Xin community, base station improves the new community PCI success rate of configuration automatically.
While comprising the PCI of historical community and subdistrict frequency point information in terminal history information, the PCI of historical community that can only choose the setting quantity of the last resident mistake of terminal with base station combines., in steps A 6, in the PCI of the historical community comprised in the terminal history information that base station can obtain in steps A 3, only choose last resident mistake, with PCIDe Xin to be allocated community with frequently, set the PCI of the historical community of quantity, the PCI of this part PCI and steps A 5 acquisitions is merged, obtain the PCI restriction set of new community, geographic range with the peripheral cell that dwindles new community, make PCI automatically configure employing channeling to a certain degree, thereby further improve in the PCI option set of Zai Xin community, base station the success rate while selecting at random, improve the new community PCI success rate of configuration automatically.
Example two
Step B1: terminal is to source base station reporting measurement event report.
Step B2: after source base station is received measurement report event, according to handoff algorithms, determine terminal transfer to Target cell, source base station constructs handover request message, and be sent to the target BS at Target cell place by X2 interface or S1 interface, carry terminal history information in this handover request message, the resident historical cell information of the terminal comprised in this terminal history information resident time span, also comprises PCI and the subdistrict frequency point information of historical community except the cellular global identity, cell type and the terminal that comprise historical community in the historical community of correspondence.
Step B3: target BS receives the handover request message that comes from source base station or MME, obtains and store the terminal history information carried in this handover request message, comprises PCI and the subdistrict frequency point information of the resident historical community of terminal in this terminal history information.
Step B4: when base station, be foregoing target BS to the community of storage, be that PCI and the subdistrict frequency point information of foregoing historical community compares, if there be the PCI situation identical with this jurisdiction district, base station with subdistrict frequency point information of PCI ,Huo identical with the subdistrict frequency point information community of community in discovery, determine and have potential PCI conflict, can further carry out B5; Otherwise, determine and conflict without PCI.
Step B5: PCI is modified for ，Gai base station, the community notice respective base station that has potential PCI conflict.
Example three
Step C1: terminal is to source base station reporting measurement event report.
Step C2: after source base station is received measurement report event, according to handoff algorithms, determine terminal transfer to Target cell, source base station constructs handover request message, and be sent to the target BS at Target cell place by X2 interface or S1 interface, carry terminal history information in this handover request message, the resident historical cell information of the terminal comprised in this terminal history information resident time span, also comprises PCI and the subdistrict frequency point information of historical community except the cellular global identity, cell type and the terminal that comprise historical community in the historical community of correspondence.
Step C3: target BS receives the handover request message that comes from source base station or MME, obtains and store the terminal history information carried in this handover request message, comprises PCI and the subdistrict frequency point information of the resident historical community of terminal in this terminal history information.
Step C4: when base station, be foregoing target BS to the community of storage, be that PCI and the subdistrict frequency point information of foregoing historical community compares, if there be the PCI situation identical with community that this base station is administered with subdistrict frequency point information of PCI ,Huo identical with the subdistrict frequency point information community of community in discovery, determine and have potential PCI conflict, continue to carry out C5; Otherwise, determine the conflict without PCI, finish current flow process.
Step C5: whether the base station judgement exists the community of potential PCI conflict to be present in the terminal history information of same terminal, perhaps have whether one of them community of potential PCI conflict is the community that this base station is administered, if exist the community of potential PCI conflict to be present in the terminal history information of same terminal, the community that one of them the Shi Zhe base station, community that perhaps exists potential PCI to conflict is administered, add up the minimum number of cells of current served terminal resident mistake in the middle of the community that has potential PCI conflict, if there be the situation of number of cells lower than the multiplexing thresholding of PCI arranged, need PCI is modified, this base station notice respective base station is modified to PCI, if there is no number of cells, lower than the situation of the multiplexing thresholding of PCI arranged, will exist the cellular global identity of the community of potential PCI conflict to notify to OAM, by OAM, be determined whether PCI is modified.If exist the community of potential PCI conflict not to be present in the terminal history information of same terminal, and the community that exists one of them Bu Shizhe base station, community of potential PCI conflict to administer, current flow process finished.
Step C6:OAM, according to the relevant informations such as geography information of cellular global identity He Ge community, is adjudicated potential PCI conflict, determines whether PCI is modified, if the minizone relation meets the multiplexing condition of PCI, PCI is not modified; If the minizone relation does not meet the multiplexing condition of PCI, notify respective base station to modify to PCI.The multiplexing condition of PCI sets in advance, and can be known by OAM.The minizone relation refers to the correlation between community, as each other the distance etc.
Example four
Step D1: terminal is to source base station reporting measurement event report.
Step D2: after source base station is received measurement report event, according to handoff algorithms, determine terminal transfer to Target cell, source base station constructs handover request message, and be sent to the target BS at Target cell place by X2 interface or S1 interface, carry terminal history information in this handover request message, the resident historical cell information of the terminal comprised in this terminal history information resident time span, also comprises PCI and the subdistrict frequency point information of historical community except the cellular global identity, cell type and the terminal that comprise historical community in the historical community of correspondence.
Step D3: target BS receives the handover request message that comes from source base station or MME, obtains and store the terminal history information carried in this handover request message, comprises PCI and the subdistrict frequency point information of the resident historical community of terminal in this terminal history information.
Step D4: when base station, be foregoing target BS to the community of storage, be that PCI and the subdistrict frequency point information of foregoing historical community compares, if there be the PCI situation identical with community that this base station is administered with subdistrict frequency point information of PCI ,Huo identical with the subdistrict frequency point information community of community in discovery, determine and have potential PCI conflict, continue to carry out D5; Otherwise, determine the conflict without PCI, finish current flow process.
Step D5: base station will exist the cellular global identity of the community of potential PCI conflict to notify to OAM, by OAM, be determined whether PCI is modified.OAM, according to the relevant informations such as geography information of cellular global identity He Ge community, is adjudicated potential PCI conflict, if the minizone relation meets the multiplexing condition of PCI, PCI is not modified; If the minizone relation does not meet the multiplexing condition of PCI, notify respective base station to modify to PCI.
The each execution of above-described PCI collision detection can only be carried out for the Liang Ge community, and each above-described step B4, step C4, step D4 of carrying out, only carry out for the Liang Ge community.
The present invention also provides and has utilized terminal history information to carry out the system of PCI relevant treatment, as shown in Figure 4, this system comprises: the first base station and the second base station, wherein, the first base station is for sending handover request message, the PCI that comprises historical community in the terminal history information carried in this handover request message or PCI and subdistrict frequency point information to the second base station; The second base station is for receiving handover request message, the terminal history information carried by this handover request message obtains PCI or PCI and the subdistrict frequency point information of the resident historical community of terminal, according to the PCI of historical community or PCI and subdistrict frequency point information, carries out the PCI relevant treatment.The first base station can directly be sent to the second base station by handover request message, also can handover request message be sent to the second base station by MME.
Fig. 5 utilizes terminal history information to carry out the apparatus structure schematic diagram of PCI relevant treatment in the present invention, as shown in Figure 5, this device comprises: receiving element, resolution unit and PCI processing unit, and wherein, receiving element is for receiving handover request message; Resolution unit for obtain in the terminal history information that handover request message carries comprise the resident historical community of terminal PCI or PCI and subdistrict frequency point information; The PCI processing unit is for carrying out the PCI relevant treatment according to the PCI of historical community or PCI and subdistrict frequency point information.The PCI processing unit can be the automatic dispensing unit of PCI, for the automatic PCI allocation in PCIWei Xin community according to historical community; Can be also PCI collision detection unit, for the PCI according to historical community and subdistrict frequency point information, carry out the PCI collision detection.
The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.
Claims (9)
1. a method of utilizing terminal history information to be processed, is characterized in that, the method comprises:
Receive handover request message, the terminal history information carried by handover request message, obtain cell physical address PCI or PCI and the subdistrict frequency point information of the resident historical community of the terminal that comprises in described terminal history information;
Carry out the PCI relevant treatment according to described PCI or described PCI and subdistrict frequency point information, described PCI relevant treatment comprises: PCI configures and/or the PCI collision detection automatically.
2. method according to claim 1, is characterized in that, described handover request message comes from: source base station, or Mobility Management Entity MME.
3. method according to claim 1 and 2, is characterized in that, described PCI relevant treatment is PCI while automatically configuring, and the described PCI according to described historical community or PCI and subdistrict frequency point information are carried out the PCI relevant treatment, comprising:
Obtain the available PCI collection of PCIDe Xin to be configured community, and obtain the PCI collection that the peripheral cell of PCIDe Xin to be configured community has been used;
By the PCI of the historical community that comprises in described terminal history information and the described PCI set of having used also, obtain the PCI restriction set of new community;
Described available PCI collection is removed to described PCI restriction set, obtain the PCI option set of new community;
Select a PCI in described PCI option set, as the PCI of new community.
4. method according to claim 3, is characterized in that,
Described by the PCI of the historical community that comprises in described terminal history information and the described PCI set of having used also, comprise: in the described PCI comprised in the terminal history information obtained, choose the PCI of historical community of the setting quantity of the last resident mistake of terminal, by the PCI that chooses and the described PCI set of having used also;
Described by the PCI of the historical community that comprises in described terminal history information and the described PCI set of having used also, also comprise: in the PCI of the described historical community comprised in the terminal history information obtained, choose and PCIDe Xin to be allocated community with the PCI of historical community frequently, the PCI and the described PCI used that choose are gathered also.
5. method according to claim 3, it is characterized in that, described by the PCI that comprises in described terminal history information and the described PCI set of having used also, comprise: in the described PCI comprised in the terminal history information obtained, choose and same frequently, the PCI that set the historical community of quantity in PCIDe Xin to be allocated community, the PCI and the described PCI used that choose are gathered also.
6. method according to claim 1 and 2, it is characterized in that, when described PCI relevant treatment is the PCI collision detection, the described PCI according to described historical community or PCI and subdistrict frequency point information are carried out the PCI relevant treatment, comprise: PCI and subdistrict frequency point information to described historical community compare, if find to exist situation that the PCI of described historical community is identical with the target BS jurisdiction district or the PCI situation identical with the target BS jurisdiction district with subdistrict frequency point information of described historical community, definitely exist potential PCI to conflict; Otherwise, determine and conflict without PCI.
7. method according to claim 6, is characterized in that, described determine have potential PCI conflict after, further comprise:
For the community that has potential PCI conflict, the notice respective base station is modified to PCI; Perhaps,
Determine and exist the community of potential PCI conflict to be present in the terminal history information of same terminal, one of them community that perhaps has potential PCI conflict be target BS administer community the time, add up the minimum number of cells of current served terminal resident mistake in the middle of the community that has potential PCI conflict, if there be the situation of number of cells lower than the multiplexing thresholding of PCI arranged, need PCI is modified, the notice respective base station is modified to PCI, if there is no number of cells is lower than the situation of the multiplexing thresholding of PCI arranged, will exist the cellular global identity of the community of potential PCI conflict to notify to OAM, OAM is according to the geography information of cellular global identity He Ge community, by OAM, determined whether PCI is modified, perhaps,
By existing the cellular global identity of the community of potential PCI conflict to notify to OAM, by OAM, determined whether PCI is modified.
8. a device that utilizes terminal history information to be processed, is characterized in that, this device comprises: receiving element, resolution unit and PCI processing unit, wherein,
Described receiving element is for receiving handover request message;
Described resolution unit for obtain in the terminal history information that described handover request message carries comprise the resident historical community of terminal PCI or PCI and frequency point information;
Described PCI processing unit is for carrying out the PCI relevant treatment according to the PCI of described historical community or PCI and frequency point information, and described PCI relevant treatment comprises: PCI configures and/or the PCI collision detection automatically.
9. a system of utilizing terminal history information to be processed, is characterized in that, this system comprises: the first base station and the second base station, wherein,
Described the first base station is for sending handover request message, the PCI that comprises historical community in the terminal history information carried in this handover request message or PCI and frequency point information to the second base station;
Described the second base station obtains PCI or PCI and the frequency point information of the resident historical community of terminal for the terminal history information carried by described handover request message, carry out the PCI relevant treatment according to the PCI of described historical community or PCI and frequency point information, described PCI relevant treatment comprises: PCI configures and/or the PCI collision detection automatically.
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| CN102790971B (en) * | 2011-05-17 | 2018-08-17 | 中兴通讯股份有限公司 | The cell ID of relay node determines method and system |
| CN102625368A (en) * | 2012-03-13 | 2012-08-01 | 中兴通讯股份有限公司 | Switch method and device for cells in heterogeneous network |
| CN103458475A (en) * | 2012-05-31 | 2013-12-18 | 中兴通讯股份有限公司 | Method for detecting mobility robustness between HRPD (high rate packet data) network and LTE (long term evolution) network |
| US9591539B2 (en) | 2012-07-27 | 2017-03-07 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for interference control |
| CN106332148B (en) * | 2015-06-23 | 2020-04-03 | 中兴通讯股份有限公司 | Base station networking method and device |
| CN109151851B (en) * | 2017-06-19 | 2021-08-27 | 中国移动通信集团浙江有限公司 | Method, device, electronic equipment and storage medium for allocating physical cell identification |
| CN108174416B (en) * | 2017-12-12 | 2020-12-04 | 东软集团股份有限公司 | Method and apparatus for determining mobile terminal residence area and storage medium |
| CN110876161B (en) * | 2018-08-31 | 2023-04-18 | 中兴通讯股份有限公司 | Cell discovery method, device and computer readable storage medium |
| CN113645695B (en) * | 2020-04-27 | 2023-09-19 | 北京小米移动软件有限公司 | Method, device and storage medium for processing radio resource control link configuration signaling |
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