CN101790212A - Method of selecting target cell and network node - Google Patents
Method of selecting target cell and network node Download PDFInfo
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- CN101790212A CN101790212A CN200910138675A CN200910138675A CN101790212A CN 101790212 A CN101790212 A CN 101790212A CN 200910138675 A CN200910138675 A CN 200910138675A CN 200910138675 A CN200910138675 A CN 200910138675A CN 101790212 A CN101790212 A CN 101790212A
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Abstract
The embodiment of the invention discloses a method of selecting target cell. The method comprises the following steps: obtaining neighbor cell aggregation information; performing handoff decision in reference to neighbor cell aggregation information when user equipment (UE) is needed to hand off; and selecting neighbor cell to be handed off according to handoff decision result. The embodiment of the invention also discloses a network node. The network node comprises an obtaining unit, a handoff decision unit and a selecting unit, wherein the obtaining unit is used to obtain neighbor cell aggregation information; the handoff decision unit is used to perform handoff decision in reference to neighbor cell aggregation information obtained by the obtaining unit when UE is needed to hand off; and the selecting unit is used to select neighbor cell to be handed off according to the handoff decision result of the handoff decision unit. When performing handoff decision, cell of origin can refer to neighbor cell aggregation information to increase the probability that UE can obtain high-speed services after handoff.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method of selecting target cell and network node.
Background technology
(the ITU of International Telecommunications Union, International Telecommunications Union) four new frequency ranges of the third generation and the 4th third-generation mobile communication system delimited, i.e. the 20MHz bandwidth of the 108MHz bandwidth of the 100MHz bandwidth of the 200MHz bandwidth of 3.4G～3.6GHz, 2.3G～2.4GHz, 698M～806MHz and 450M～470MHz.But owing to distribution condition difference at country variant, the final international mobile communication (IMT that obtains of each operator, International Mobile Telecommunications) frequency range is also discontinuous probably, in order to guarantee the service quality of high bandwidth, high speed business, the spectrum aggregating technology is introduced in Long Term Evolution senior (LTE-A, the Long Term Evolution-Advanced) system.
At Long Term Evolution (LTE, Long Term Evolution) in the system, as subscriber equipment (UE, User Equipment) detects adjacent sub-district and satisfy the report condition, UE is the Physical Cell Identifier (PCI of adjacent sub-district, Physical Cell Identifier) report to Serving cell, Serving cell is just known a new sub-district.
When user's cell-of-origin need switch to adjacent sub-district, switch decision was carried out according to signal quality of adjacent sub-district etc. in the cell-of-origin, for the user selects suitable Target cell, switches.
In research and practice process to prior art, the inventor finds that there is following problem in prior art:
Prior art is that the signal quality according to adjacent sub-district carries out switch decision.This switch decision scheme has the situation of polymerizing power for adjacent sub-district, then cannot say for sure to demonstrate,prove the probability that UE can obtain high-speed service.
Summary of the invention
The technical problem that the embodiment of the invention will solve provides a kind of method of selecting target cell and network node, switches the probability that back UE obtains high-speed service to improve.
The embodiment of the invention provides a kind of method of selecting target cell on the one hand, comprising:
Obtain adjacent sub-district aggregation information;
When subscriber equipment need switch, carry out switch decision with reference to adjacent sub-district aggregation information;
Select switching target small area according to handoff decision result.
On the other hand, provide a kind of network node, having comprised:
Acquiring unit is used to obtain adjacent sub-district aggregation information;
The switch decision unit is used for when subscriber equipment need switch, and carries out switch decision with reference to the adjacent sub-district aggregation information that described acquiring unit obtains;
Selected cell is used for selecting switching target small area according to described switch decision unit handoff decision result.
As can be seen from the above technical solutions, because the cell-of-origin can obtain adjacent sub-district aggregation information, when carrying out switch decision, can carry out switch decision with reference to the polymerizing power of adjacent sub-district, make subscriber equipment can switch to the adjacent relatively preferably sub-district of polymerizing power, can obtain service more at a high speed.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 obtains the method embodiment one Signalling exchange figure of adjacent sub-district aggregation information for cell-of-origin provided by the invention;
Fig. 2 obtains the method embodiment two Signalling exchange figure of adjacent sub-district aggregation information for cell-of-origin among the present invention
Fig. 3 obtains the method embodiment three Signalling exchange figure of adjacent sub-district aggregation information for cell-of-origin among the present invention;
Fig. 4 obtains the method embodiment four Signalling exchange figure of adjacent sub-district aggregation information for cell-of-origin among the present invention;
Fig. 5 is method of selecting target cell embodiment flow process among the present invention;
Fig. 6 is network node example structure schematic diagram among the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The embodiment of the invention provides a kind of method of selecting target cell and sub-district, makes the cell-of-origin can switch the probability that back UE obtains high-speed service to improve with reference to adjacent cell aggregation information when doing switch decision.
The embodiment of the invention also provides a kind of cell-of-origin to obtain the method for adjacent sub-district aggregation information, comprising:
Adjacent cell aggregation information is known by automatic neighbours' association (ANR, Automatic NeighborRelation) function in the cell-of-origin of subscriber equipment;
Or know adjacent cell aggregation information by X2 interface message;
Or know adjacent cell aggregation information by the S1 interface message;
Or by cell-of-origin and operation and maintenance (O﹠amp; M, Operator And Management) interface message is known adjacent cell aggregation information.
Adjacent cell aggregation information may comprise:
1, polymerization indication (Agg-Ind, Aggregation Indication)
2, descending polymerization carrier number (Num of DL CA, Number Of DL Aggregated CarriersOPTIONAL for CA)
3, descending polymerization carrier list (DL Aggregated Carriers list OPTIONAL for CA)
3.1, carrier wave sequence number (Carriers No.)
3.2, Physical Cell Identifier (PCI)
3.3, carrier frequency (F, Frequency)
3.4, carrier bandwidths (BW, Bandwidth)
3.5, anchor carrier sign (single anchor carrier is effective) (Anchor Ind, Anchor Carriers INDOPTIONAL for single Anchor pair)
4, up polymerization carrier number (Num ofUL CA, Number OfUL Aggregated CarriersOPTIONAL for CA)
5, up polymerization carrier list (UL Aggregated Carriers list OPTIONAL for CA)
5.1, carrier wave sequence number (Carriers No.)
5.2, carrier frequency (Frequence)
5.3, carrier bandwidths (Bandwidth)
5.4, anchor carrier sign (single anchor carrier is effective) (Anchor Carriers IND OPTIONALfor single Anchor pair)
6, many anchor carrier are to indication (Multiple Anchor Carriers pair Indication OPTIONALfor CA)
7, anchor carrier is to number (Number Of Anchor Carriers pair)
8, anchor carrier is to tabulation (Anchor Carriers pair list OPTIONAL for CA multipleAnchor pair)
7.1, descending carrier sequence number (DL Carriers No.)
7.2, up-link carrier sequence number (UL Carriers No.)
Above aggregation information is used under the state of carrier aggregation, i.e. polymerization is designated as the effectively situation of (TRUE), and it is aggregation cell that polymerization is designated as this neighbour sub-district of effective explanation.
Cell-of-origin provided by the invention obtains among the method embodiment one of adjacent sub-district aggregation information, knows that by the ANR function adjacent cell aggregation information is that example is described with the cell-of-origin of subscriber equipment.
Cell-of-origin provided by the invention obtains the method embodiment one of adjacent sub-district aggregation information, in adjacent area contingency table (NEIGHBOR RELATION TABLE), added adjacent cell aggregation information, each attribute in the contingency table of adjacent area is all relevant simultaneously with cell-of-origin and adjacent sub-district, and adjacent area contingency table detailed configuration method is as described below:
(1) sub-district has the adjacent sub-district that some have existed usually when initial setting up, and these adjacent sub-districts belong to the adjacent area of upper strata initial configuration, and its attribute can be configured by the upper strata; The attribute of each sub-district also comprises cell aggregation information except the essential information that comprises the sub-district;
(2) the new adjacent sub-district of finding by the ANR function for cell-of-origin (eNB), its attribute can obtain by long-term performance statistics, (No HO Nohandoff), also can report new adjacent sub-district to provide its property value by the upper strata for the upper strata such as two minizone success rate for switching.The attribute of each sub-district also comprises cell aggregation information except the essential information that comprises the sub-district.
Because the length of adjacent area contingency table is longer, therefore it is divided into 3 form statements, wherein, adjacent area contingency table (1-1) is as shown in table 1, adjacent area contingency table (1-2) is as shown in table 2, (1-3) is as shown in table 3 for the adjacent area contingency table:
| Adjacent area association (NR) | Local district identification (LCI) | Target Cell Identifier (TCI) | ??No??Re??move | ??No??HO | ??No??X2 | The polymerization indication (Agg-Ind) | ?Num?of?DL?CA | ??No.??Of??DL??CA | ?PCI | ??F | ??BW | ??Anchor??Ind |
| ??1 | ??LCI#1 | ??TCI#1 | ??TRUE | ??2 | ??1 | ??1 | ??F1 | ??B1 | ??True | |||
| ??2 | ??LCI#1 | ??TCI#2 | ??√ | |||||||||
| ??3 | ??LCI#1 | ??TCI#3 | ??√ | |||||||||
| ??4 | ??LCI#1 | ??TCI#4 | ??√ | |||||||||
| ??... |
Table 1, adjacent area contingency table (1-1)
| ??No.??Of??DL??CA | ?PCI | ??F | ??BW | ??Anchor??Ind | ?Num?of?UL?CA | ??No.??Of??UL??CA | ??F | ??BW | ??Anchor??Ind | ??No.??Of??UL??CA | ??F | ??BW |
| ??2 | ??2 | ??F2 | ??B2 | ??False | ??2 | ??1 | ??F1 | ??B1 | ??True | ??2 | ??F3 | ??B3 |
Table 2, adjacent area contingency table (1-2)
| ??Anchor??Ind | ?Multiple?Anchor?pair?Indication | ??Number??Of??Anchor??pair | ??DL??No. | ??UL??No. | ||||||||
| ??False | ??True | ??1 | ??1 | ??1 | ||||||||
Table 3, adjacent area contingency table (1-3)
Wherein No.Of DL CA is descending Carriers No., and No.Of UL CA is up CarriersNo..
Agg-Ind, Num of DL CA, No.Of DL CA, PCI, F, BW, Anchor Ind, Num of UL CA, No.Of UL CA, Number Of Anchor pair, DL No., UL No. are adjacent cell aggregation information.
Now illustrate that with example cell-of-origin provided by the invention obtains the method embodiment one of adjacent sub-district aggregation information by the ANR function, Fig. 1 comprises for cell-of-origin provided by the invention obtains the method embodiment one Signalling exchange figure of adjacent sub-district aggregation information:
S01, UE send the Physical Cell Identifier report to Serving cell (Served eNB).
UE reports to Serving cell to the PCI of adjacent sub-district when detecting adjacent sub-district and satisfy the report condition, Serving cell is known a new sub-district.
S02, Serving cell send Cell Global Identification report request (report global-cidrequest) to UE, ask the Cell Global Identification (GCI, Global Cell Identity) of adjacent sub-district.
S03, UE receive the Cell Broadcast CB of adjacent sub-district (Neighbor eNB).
UE reads relevant information from the broadcasting of adjacent sub-district, comprising the GCI and the adjacent sub-district aggregation information of adjacent sub-district.
Step S03 can carry out before step S02.
S04, UE send the GCI and the adjacent sub-district aggregation information of adjacent sub-district to Serving cell.
The flow process of using the ANR function that is described above, this moment, Serving cell can get access to adjacent sub-district aggregation information, when this Serving cell as the cell-of-origin, can be when doing switch decision with reference to the adjacent cell aggregation information of obtaining, switch the probability that back UE obtains high-speed service to improve.
Cell-of-origin provided by the invention obtains among the method embodiment two of adjacent sub-district aggregation information, knows that by X2 interface message adjacent cell aggregation information is that example is described with the cell-of-origin of subscriber equipment.
The method embodiment two Signalling exchange figure that cell-of-origin provided by the invention obtains adjacent sub-district aggregation information are as shown in Figure 2:
101, cell-of-origin (Source eNB) sends polymerization request (AGGREGATIONREQUEST) message to adjacent sub-district, asks adjacent sub-district to send the aggregation information of oneself.
102, adjacent sub-district is returned the polymerization request to the cell-of-origin and is informed (AGGREGATION REQUESTACKNOWLEDGE) message.
The polymerization request of returning informs and carries adjacent cell aggregation information in the message that the polymerization request informs that the message field description can be as shown in table 4:
| The message field description is informed in the polymerization request |
| Adjacent cell ID (Neighbour cell-Identity) |
| ??Aggregation-Indication??If?set?to?TRUE，the?neighbour?cell?is?a?aggregation?cell |
| ??Number?Of?DL?Aggregated?Carriers |
| ??DL?Aggregated?Carriers?list |
| ??Number?Of?UL?Aggregated?Carriers |
| ??UL?Aggregated?Carriers?list |
| ??Multiple?Anchor?pair?Indication |
| ??Number?Of?Anchor?pair |
| ??Anchor?pair?list |
| Table 4, polymerization request inform that message carries the sequence number that DL Aggregated Carriers carries each descending carrier in the information table 4, frequency, bandwidth, PCI etc., the DLAggregated Carriers information of carrying can be as shown in table 5: DL Aggregated Carriers field descriptions |
| ??No. |
| ??Freq |
| ??Bandwidth |
| ??PCI |
Table 5, DL Aggregated Carriers carry information
ULAggregated Carriers carries the sequence number of each up-link carrier in the table 4, frequency, and bandwidth etc., the UL Aggregated Carriers information of carrying can be as shown in table 6:
| ??UL?Aggregated?Carriers?field?descriptions |
| ??No. |
| ??Freq |
| ??Bandwidth |
Table 6, UL Aggregated Carriers carry information
Anchor pair carries the carrier wave sequence number of every pair of grappling etc. in the table 4, and the Anchor pair information of carrying can be as shown in table 7:
| ??Anchor?pair?field?descriptions |
| ??DLNo. |
| ??Anchor?pair?field?descriptions |
| ??DLNo. |
Table 7, Anchor pair carry information
After receiving that message is informed in the polymerization request, the cell-of-origin can get access to its adjacent sub-district aggregation information of carrying.
Cell-of-origin provided by the invention obtains among the method embodiment three of adjacent sub-district aggregation information, knows that by the S1 interface message adjacent cell aggregation information is that example is described with the cell-of-origin of subscriber equipment.
The method embodiment three Signalling exchange figure that cell-of-origin provided by the invention obtains adjacent sub-district aggregation information are as shown in Figure 3:
201, cell-of-origin (Source eNB) sends adjacent sub-district polymerization request (NEIGHBOR CELL AGGREGATION REQUEST) message to mobile management entity (MME, Mobile ManagementEntity), asks adjacent cell aggregation information.
Carry the cell ID of adjacent sub-district in this neighbour sub-district polymerization request, to show the adjacent sub-district of concrete request.
202, mobile management entity returns the polymerization request to the cell-of-origin and informs message, and the polymerization request informs that message can be that (NEIGHBOR CELL AGGREGATIONREQUEST ACKNOWLEDGE) message is informed in the polymerization request of adjacent sub-district in the present embodiment.
Mobile management entity can be given with the report information of oneself in sub-district in the system, comprising aggregation information, and mobile management entity can be preserved these information, therefore mobile management entity is when receiving the polymerization request of adjacent sub-district, this known neighbour sub-district aggregation information can be carried at the adjacent sub-district polymerization request of returning and inform in the message, the polymerization request of adjacent sub-district informs that the message field description can be as shown in table 8:
| The message field description is informed in adjacent sub-district polymerization request |
| Cell-of-origin sign (Source cell-Identity) |
| Adjacent number of cells (Neighbour cell Number) |
| Adjacent sub-district aggregation information (Neighbour cell-Aggregation Information) |
The message field description is informed in table 8, the polymerization request of adjacent sub-district
Neighbour cell-Aggregation Information carries the polymerization indication of each aggregation cell in the table 8, descending polymerization carrier list, up polymerization carrier list, a plurality of anchor carrier tabulations etc., adjacent sub-district aggregation information field description can be as shown in table 9:
| Adjacent sub-district aggregation information field description |
| Adjacent cell ID (Neighbour cell-Identity) |
| ??Aggregation-Indication??If?set?to?TRUE，the?neighbour?cell?is?a?aggregation?cell |
| Adjacent sub-district aggregation information field description |
| ??Number?Of?DL?Aggregated?Carriers |
| ??DL?Aggregated?Carriers?list |
| ??Number?Of?UL?Aggregated?Carriers |
| ??UL?Aggregated?Carriers?list |
| ??Multiple?Anchor?pair?Indication |
| ??Number?OfAnchor?pair |
| ??Anchor?pair?list |
Table 9, adjacent sub-district aggregation information field description
After receiving that message is informed in the polymerization request of adjacent sub-district, the cell-of-origin can get access to its adjacent sub-district aggregation information of carrying.
Cell-of-origin provided by the invention obtains among the method embodiment four of adjacent sub-district aggregation information, with the cell-of-origin of subscriber equipment by cell-of-origin and O﹠amp; The interface message of M knows that adjacent cell aggregation information is that example is described.
The method embodiment four Signalling exchange figure that cell-of-origin provided by the invention obtains adjacent sub-district aggregation information are as shown in Figure 4:
301, cell-of-origin (Source eNB) sends adjacent sub-district polymerization request (NEIGHBOR CELL AGGREGATION REQUEST) message to the operation and maintenance entity, asks adjacent cell aggregation information.
Carry the cell ID of adjacent sub-district in this neighbour sub-district polymerization request, to show the adjacent sub-district of concrete request.
302, the operation and maintenance entity returns the polymerization request to the cell-of-origin and informs message, and the polymerization request informs that message can be that (NEIGHBOR CELLAGGREGATION REQUEST ACKNOWLEDGE) message is informed in the polymerization request of adjacent sub-district in the present embodiment.
The operation and maintenance entity is preserved and has been added cell aggregation information in the system, therefore the operation and maintenance entity is when receiving the polymerization request of adjacent sub-district, this known neighbour sub-district aggregation information can be carried at the adjacent sub-district polymerization request of returning informs in the message, adjacent sub-district polymerization request informs that the message field structure can obtain description among the method embodiment three of adjacent sub-district aggregation information with reference to cell-of-origin provided by the invention above, no longer repeats at this.
After receiving that message is informed in the polymerization request of adjacent sub-district, the cell-of-origin can get access to its adjacent sub-district aggregation information of carrying.
Further, on distinct interface, the sub-district can report initiatively that aggregation information gives neighbor cell, and then the neighbor cell of this sub-district can obtain this cell aggregation information.
The opportunity that aggregation information is given neighbor cell is initiatively reported in the sub-district, can be when this cell information changes, and also can be the periodic triggers report, also can be by Event triggered.
When initiatively reporting that aggregation information is given neighbor cell, receive that the sub-district of aggregation information does not need to send the adjacent sub-district of information request aggregation information when carrying out switch decision by the sub-district.
With the X2 interface is example, and the method embodiment five that cell-of-origin provided by the invention obtains adjacent sub-district aggregation information comprises:
The sub-district periodically sends polymerization request acknowledge message by X2 interface to neighbor cell, and this polymerization request acknowledge message carries this cell aggregation information.
Each neighbor cell of this sub-district all might be as the cell-of-origin, at the neighbor cell of this sub-district during as the cell-of-origin, the sub-district of this relative transmission polymerization request acknowledge message is exactly the adjacent sub-district of this cell-of-origin, therefore the angle from the cell-of-origin can be expressed as: the cell-of-origin periodically receives the polymerization request acknowledge message that adjacent sub-district sends by X2 interface, obtains this neighbour's cell aggregation information from this polymerization request acknowledge message.
The method embodiment six that cell-of-origin provided by the invention obtains adjacent sub-district aggregation information comprises:
The sub-district sends polymerization request acknowledge message by X2 interface to neighbor cell when predetermined trigger event takes place, this polymerization request acknowledge message carries this cell aggregation information.Predetermined trigger event is set by operator usually, can be that this sub-district aggregation information partly changes, and perhaps all changes or the like.
At the neighbor cell of this sub-district during as the cell-of-origin, can be expressed as from the angle of cell-of-origin: the cell-of-origin receives the polymerization request acknowledge message that adjacent sub-district sends by X2 interface, obtain this neighbour's cell aggregation information from this polymerization request acknowledge message, described adjacent sub-district sends polymerization request acknowledge message when predetermined trigger event takes place.
With the S1 interface is example, and the method embodiment seven that cell-of-origin provided by the invention obtains adjacent sub-district aggregation information comprises:
Mobile management entity periodically sends adjacent sub-district polymerization request acknowledge message by the S1 interface to the cell-of-origin, and this neighbour sub-district polymerization request acknowledge message carries the known adjacent cell aggregation information of mobile management entity;
Mobile management entity can be given with the report information of oneself in sub-district in the system, and comprising aggregation information, and mobile management entity can preserve these information, so mobile management entity can carry adjacent cell aggregation information in adjacent sub-district polymerization request acknowledge message.
The cell-of-origin periodically receives the adjacent sub-district polymerization request acknowledge message that mobile management entity sends by the S1 interface, obtains adjacent cell aggregation information from this neighbour sub-district polymerization request acknowledge message.
The method embodiment eight that cell-of-origin provided by the invention obtains adjacent sub-district aggregation information comprises:
Mobile management entity sends polymerization request acknowledge message by the S1 interface to the cell-of-origin when predetermined trigger event takes place, this neighbour sub-district polymerization request acknowledge message carries adjacent cell aggregation information.Predetermined trigger event is set by operator usually, can be that adjacent sub-district aggregation information partly changes, and perhaps all changes or the like.
The cell-of-origin receives the adjacent sub-district polymerization request acknowledge message that mobile management entity sends by the S1 interface, obtains adjacent cell aggregation information from this neighbour sub-district polymerization request acknowledge message.
With cell-of-origin and O﹠amp; The interface of M is an example, and the method embodiment nine that cell-of-origin provided by the invention obtains adjacent sub-district aggregation information comprises:
The operation and maintenance entity is periodically by cell-of-origin and O﹠amp; The interface of M sends adjacent sub-district polymerization request acknowledge message to the cell-of-origin, and this neighbour sub-district polymerization request acknowledge message carries adjacent cell aggregation information;
The cell-of-origin is periodically by cell-of-origin and O﹠amp; The interface of M receives the adjacent sub-district polymerization request acknowledge message that the operation and maintenance entity sends, and obtains adjacent cell aggregation information from this neighbour sub-district polymerization request acknowledge message.
The method embodiment ten that cell-of-origin provided by the invention obtains adjacent sub-district aggregation information comprises:
The operation and maintenance entity when predetermined trigger event takes place by cell-of-origin and O﹠amp; The interface of M sends polymerization request acknowledge message to the cell-of-origin, and this neighbour sub-district polymerization request acknowledge message carries adjacent cell aggregation information.Predetermined trigger event is set by operator usually, can be that adjacent sub-district aggregation information partly changes, and perhaps all changes or the like.
The cell-of-origin is by cell-of-origin and O﹠amp; The interface of M receives the adjacent sub-district polymerization request acknowledge message that the operation and maintenance entity sends, and obtains adjacent cell aggregation information from this neighbour sub-district polymerization request acknowledge message.
When using other interfaces, can analogize acquisition with above-mentioned example, no longer be repeated in this description at this.
More than obtain the method for adjacent sub-district aggregation information for the cell-of-origin that the embodiment of the invention is provided description, the cell-of-origin that using the embodiment of the invention provides obtains the method for adjacent sub-district aggregation information, the cell-of-origin can obtain adjacent sub-district aggregation information, when carrying out switch decision, can carry out switch decision with reference to the polymerizing power of adjacent sub-district, make subscriber equipment can switch to the adjacent relatively preferably sub-district of polymerizing power, can obtain service more at a high speed.
Method of selecting target cell embodiment flow process provided by the invention comprises as shown in Figure 5:
401, obtain adjacent sub-district aggregation information.
Obtain the description that the concrete grammar of adjacent sub-district aggregation information can obtain the method for adjacent sub-district aggregation information with reference to the cell-of-origin that above embodiment of the invention is provided, be not described in detail at this.
402, when subscriber equipment need switch, carry out switch decision with reference to adjacent sub-district aggregation information.
Adjacent sub-district aggregation information comprises: the polymerization indication, with descending polymerization carrier number, descending polymerization carrier list, descending carrier sequence number, downlink physical cell ID, downlink carrier frequency, descending carrier bandwidth, descending anchor carrier sign, up polymerization carrier number, up polymerization carrier list, up-link carrier sequence number, uplink carrier frequency, up-link carrier bandwidth, up anchor carrier sign, many anchor carrier to indication, anchor carrier to number, anchor carrier to tabulation, descending carrier sequence number, up-link carrier sequence number, item arbitrarily wherein.
Adjacent sub-district aggregation information has characterized the polymerizing power height of adjacent sub-district, with reference to adjacent sub-district aggregation information, under the similar situation of signal quality, carries out switch decision with reference to adjacent sub-district polymerizing power, selects the best adjacent sub-district of polymerizing power.
For example, of poor quality not for a long time at adjacent cell signal, the adjacent sub-district that has is that aggregation cell can provide high-speed service, the sub-district that has is that non-aggregation cell can not provide high-speed service, the adjacent sub-district of then selecting polymerizing power is arranged when carrying out switch decision is as Target cell, when a plurality of Target cells all have polymerizing power the selective polymerization ability best as Target cell.
403, select switching target small area according to handoff decision result.
The result of switch decision as switching target small area, also is about under the similar situation of signal quality, and the best adjacent sub-district of polymerizing power is as switching target small area.
Choose switching target small area and can carry out change action, the method for selecting target cell flow process finishes.
Use the method for selecting target cell that the embodiment of the invention provides, the cell-of-origin can obtain adjacent sub-district aggregation information, when carrying out switch decision, can carry out switch decision with reference to the polymerizing power of adjacent sub-district, make subscriber equipment can switch to the adjacent relatively preferably sub-district of polymerizing power, can obtain service more at a high speed.
Because under the similar situation of signal quality, for the terminal of LTE-A, in conjunction with its type of service, if high speed business, the cell-of-origin is according to the aggregation information of neighbor cell and the polymerizing power of supporting in conjunction with UE, and the adjacent sub-district that can preferably have big polymerizing power is as switching target small area.
Network node example structure schematic diagram provided by the invention comprises as shown in Figure 6:
Acquiring unit 501 is used to obtain adjacent sub-district aggregation information;
Wherein, described acquiring unit 501 can comprise following any one:
First acquiring unit is used for knowing adjacent sub-district aggregation information by automatic neighbours' correlation function.
Second acquisition unit is used for sending information to adjacent sub-district, asks adjacent cell aggregation information; Receive the polymerization request of returning described adjacent sub-district and inform message, inform from described polymerization request and obtain described adjacent sub-district aggregation information the message.
The 3rd acquiring unit is used for sending information to mobile management entity, asks adjacent cell aggregation information; Receive the adjacent sub-district polymerization request that described mobile management entity returns and inform message, inform from described adjacent sub-district polymerization request and obtain described adjacent sub-district aggregation information the message.
The 4th acquiring unit is used for sending information to the operation and maintenance entity, asks adjacent cell aggregation information; Receive the adjacent sub-district polymerization request that described operation and maintenance entity returns and inform message, inform from described adjacent sub-district polymerization request and obtain described adjacent sub-district aggregation information the message.
The 5th acquiring unit is used to receive the polymerization request that adjacent sub-district sends and informs message, informs from described polymerization request and obtains described adjacent sub-district aggregation information the message;
Or the 6th acquiring unit is used to receive the adjacent sub-district polymerization request that mobile management entity sends and informs message, informs from described adjacent sub-district polymerization request and obtains described adjacent sub-district aggregation information the message.
Or the 7th acquiring unit is used to receive the adjacent sub-district polymerization request that the operation and maintenance entity sends and informs message, informs from described adjacent sub-district polymerization request and obtains described adjacent sub-district aggregation information the message.
Wherein, described first acquiring unit can comprise:
First receiving element is used to receive the described adjacent sub-district Physical Cell Identifier report that subscriber equipment sends;
Transmitting element is used for sending Cell Global Identification report request to described subscriber equipment;
Second receiving element is used to receive the described adjacent sub-district aggregation information that described subscriber equipment returns, and described adjacent sub-district aggregation information is obtained from described Cell Broadcast CB by described subscriber equipment.
The sub-district that the embodiment of the invention provides is as the cell-of-origin of subscriber equipment, can obtain adjacent sub-district aggregation information, when carrying out switch decision, can carry out switch decision with reference to polymerizing power with reference to adjacent sub-district, make subscriber equipment can switch to the adjacent relatively preferably sub-district of polymerizing power, can obtain service more at a high speed.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in a kind of computer-readable recording medium, this program comprises the steps: when carrying out
Obtain adjacent sub-district aggregation information;
When subscriber equipment need switch, carry out switch decision with reference to adjacent sub-district aggregation information;
Select switching target small area according to handoff decision result.
The above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.
More than a kind of aggregation information acquisition methods provided by the present invention, method of selecting target cell and sub-district are described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (11)
1. a method of selecting target cell is characterized in that, comprising:
Obtain adjacent sub-district aggregation information;
When subscriber equipment need switch, carry out switch decision with reference to described adjacent sub-district aggregation information;
Select switching target small area according to handoff decision result.
2. the method for claim 1 is characterized in that, the described adjacent sub-district aggregation information of obtaining comprises:
Receive the described adjacent sub-district Physical Cell Identifier report that subscriber equipment sends;
Send Cell Global Identification report request to described subscriber equipment;
Receive the described adjacent sub-district aggregation information that described subscriber equipment returns, described adjacent sub-district aggregation information is obtained from described Cell Broadcast CB by described subscriber equipment.
3. method as claimed in claim 2 is characterized in that, also comprises after receiving the described adjacent sub-district aggregation information that described subscriber equipment returns, and described adjacent sub-district aggregation information is added in the contingency table of adjacent area.
4. the method for claim 1 is characterized in that, the described adjacent sub-district aggregation information of obtaining comprises:
Message is informed in the polymerization request that receives the transmission of aggregation information generator, informs from described polymerization request and obtains described adjacent sub-district aggregation information the message.
5. method as claimed in claim 4 is characterized in that, also comprises before message is informed in the described polymerization request of reception:
Send information to the aggregation information generator, ask adjacent cell aggregation information.
6. as claim 4 or 5 described methods, it is characterized in that described aggregation information generator comprises:
Adjacent sub-district, mobile management entity or operation and maintenance entity.
7. as any described method of claim 1 to 5, it is characterized in that described aggregation information comprises:
The polymerization indication, with descending polymerization carrier number, descending polymerization carrier list, descending carrier sequence number, downlink physical cell ID, downlink carrier frequency, descending carrier bandwidth, descending anchor carrier sign, up polymerization carrier number, up polymerization carrier list, up-link carrier sequence number, uplink carrier frequency, up-link carrier bandwidth, up anchor carrier sign, many anchor carrier to indication, anchor carrier to number, anchor carrier to tabulation, descending carrier sequence number, up-link carrier sequence number, item arbitrarily wherein.
8. a network node is characterized in that, comprising:
Acquiring unit is used to obtain adjacent sub-district aggregation information;
The switch decision unit is used for when subscriber equipment need switch, and carries out switch decision with reference to the adjacent sub-district aggregation information that described acquiring unit obtains;
Selected cell is used for selecting switching target small area according to the handoff decision result of described switch decision unit.
9. network node as claimed in claim 8 is characterized in that, described acquiring unit comprises:
First acquiring unit is used for knowing adjacent sub-district aggregation information by automatic neighbours' correlation function.
10. network node as claimed in claim 9 is characterized in that, described first acquiring unit comprises:
First receiving element is used to receive the described adjacent sub-district Physical Cell Identifier report that subscriber equipment sends;
Transmitting element is used for sending Cell Global Identification report request to described subscriber equipment;
Second receiving element is used to receive the described adjacent sub-district aggregation information that described subscriber equipment returns, and described adjacent sub-district aggregation information is obtained from described Cell Broadcast CB by described subscriber equipment.
11. network node as claimed in claim 8 is characterized in that, described acquiring unit comprises:
Second acquisition unit is used for sending information to adjacent sub-district, asks adjacent cell aggregation information; Receive the polymerization request of returning described adjacent sub-district and inform message, inform from described polymerization request and obtain described adjacent sub-district aggregation information the message;
Or the 3rd acquiring unit is used for sending information to mobile management entity, asks adjacent cell aggregation information; Receive the adjacent sub-district polymerization request that described mobile management entity returns and inform message, inform from described adjacent sub-district polymerization request and obtain described adjacent sub-district aggregation information the message;
Or the 4th acquiring unit is used for sending information to the operation and maintenance entity, asks adjacent cell aggregation information; Receive the adjacent sub-district polymerization request that described operation and maintenance entity returns and inform message, inform from described adjacent sub-district polymerization request and obtain described adjacent sub-district aggregation information the message;
Or the 5th acquiring unit is used to receive the polymerization request that adjacent sub-district sends and informs message, informs from described polymerization request and obtains described adjacent sub-district aggregation information the message;
Or the 6th acquiring unit is used to receive the adjacent sub-district polymerization request that mobile management entity sends and informs message, informs from described adjacent sub-district polymerization request and obtains described adjacent sub-district aggregation information the message;
Or the 7th acquiring unit is used to receive the adjacent sub-district polymerization request that the operation and maintenance entity sends and informs message, informs from described adjacent sub-district polymerization request and obtains described adjacent sub-district aggregation information the message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910138675A CN101790212A (en) | 2009-01-23 | 2009-05-12 | Method of selecting target cell and network node |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910001168.3 | 2009-01-23 | ||
| CN200910138675A CN101790212A (en) | 2009-01-23 | 2009-05-12 | Method of selecting target cell and network node |
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| Publication Number | Publication Date |
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| CN101790212A true CN101790212A (en) | 2010-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910138675A Pending CN101790212A (en) | 2009-01-23 | 2009-05-12 | Method of selecting target cell and network node |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2011134239A1 (en) * | 2010-04-30 | 2011-11-03 | 中兴通讯股份有限公司 | Method and system for multi-carrier handover processing |
| CN103874094A (en) * | 2012-12-13 | 2014-06-18 | 中兴通讯股份有限公司 | ANR task execution method, ANR task execution system, ANR user equipment management method and ANR user equipment management device |
| WO2016112530A1 (en) * | 2015-01-16 | 2016-07-21 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and device for mobility control |
| CN107431959A (en) * | 2015-03-16 | 2017-12-01 | 瑞典爱立信有限公司 | For providing the method and network node of Automatic Neighboring Relation to user equipment |
| CN114697996A (en) * | 2022-03-30 | 2022-07-01 | 中国联合网络通信集团有限公司 | Network optimization processing method, device, equipment and storage medium |
| CN114697996B (en) * | 2022-03-30 | 2024-04-30 | 中国联合网络通信集团有限公司 | Network optimization processing method, device, equipment and storage medium |
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2009
- 2009-05-12 CN CN200910138675A patent/CN101790212A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011134239A1 (en) * | 2010-04-30 | 2011-11-03 | 中兴通讯股份有限公司 | Method and system for multi-carrier handover processing |
| US8792895B2 (en) | 2010-04-30 | 2014-07-29 | Zte Corporation | Processing method and system for multi-carrier handover |
| CN103874094A (en) * | 2012-12-13 | 2014-06-18 | 中兴通讯股份有限公司 | ANR task execution method, ANR task execution system, ANR user equipment management method and ANR user equipment management device |
| US9930723B2 (en) | 2012-12-13 | 2018-03-27 | Zte Corporation | ANR task execution method, system and ANR user equipment management method, apparatus |
| WO2016112530A1 (en) * | 2015-01-16 | 2016-07-21 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and device for mobility control |
| US9980196B2 (en) | 2015-01-16 | 2018-05-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and device for mobility control |
| CN107431959A (en) * | 2015-03-16 | 2017-12-01 | 瑞典爱立信有限公司 | For providing the method and network node of Automatic Neighboring Relation to user equipment |
| CN107431959B (en) * | 2015-03-16 | 2020-09-01 | 瑞典爱立信有限公司 | Method and network node for providing automatic neighbor relation to user equipment |
| CN114697996A (en) * | 2022-03-30 | 2022-07-01 | 中国联合网络通信集团有限公司 | Network optimization processing method, device, equipment and storage medium |
| CN114697996B (en) * | 2022-03-30 | 2024-04-30 | 中国联合网络通信集团有限公司 | Network optimization processing method, device, equipment and storage medium |
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Application publication date: 20100728 |