CN102026222A - Ping-pong reselection control method, device and system - Google Patents
Ping-pong reselection control method, device and system Download PDFInfo
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- CN102026222A CN102026222A CN2009101956435A CN200910195643A CN102026222A CN 102026222 A CN102026222 A CN 102026222A CN 2009101956435 A CN2009101956435 A CN 2009101956435A CN 200910195643 A CN200910195643 A CN 200910195643A CN 102026222 A CN102026222 A CN 102026222A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/00837—Determination of triggering parameters for hand-off
- H04W36/008375—Determination of triggering parameters for hand-off based on historical data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
- H04W60/04—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration using triggered events
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The embodiment of the invention discloses a ping-pong reselection control method, a ping-pong reselection control device and a ping-pong reselection control system. The ping-pong reselection control method comprises the following steps of: monitoring whether user equipment (UE) subjected to ping-pong reselection exists in the femtocell coverage area or not, if so, performing the ping-pong reselection control, namely adjusting a cell reselection parameter of the femtocell, and/or refusing the residence of the UE subjected to the ping-pong reselection in the femtocell. In the technical scheme provided by the embodiment of the invention, whether the UE is under the ping-pong reselection condition or not is judged according to the frequency of position update of the UE, and for the UE under the ping-pong reselection condition, the circumstance of the ping-pong reselection of the UE in the femtocell coverage area is reduced or avoided by modifying the position update parameter or refusing the residence of the UE in the femtocell. Therefore, insignificant processes and signaling interaction caused by the ping-pong reselection are reduced and the power consumption of the UE is decreased.
Description
Technical field
The present invention relates to communication technique field, particularly relate to a kind of ping-pong reselection control method, Apparatus and system.
Background technology
Femtocell femtocell (claiming the desktop base station again) is the subminaturization mobile access point of releasing according to 3G development and mobile broadband trend in recent years, is a kind of household base station technology, is mainly used to solve the problem of covering in the family room.Run on IP agreement, the mobile core network by User IP broadband networks access carrier, present innovation characteristics such as subminaturization, plug and play.
Femtocell uses the IP agreement, by the existing ADSL of user (Asymmetrical Digital Subscriber Loop, ADSL (Asymmetric Digital Subscriber Line)), LAN (Local Area Network, local area network (LAN)) wide charged road connects, and far-end is by the UNICOM of dedicated gateway realization from the IP network to the mobile network.
Femtocell is applicable to CDMA (Code Division Multiple Access, code division multiple access), GSM (Global System for Mobile communications, global system for mobile communications), UMTS (Universal Mobile Telecommunication System, universal mobile telecommunications system) various standards and support the product of 2G, 2.5G, 3G such as, with the same standard in other base station of operator, same frequency range, so portable terminal such as mobile phone can be general.
Femtocell generally has 1 carrier wave, and transmitting power is 10～100 milliwatts (similar to the AP of WiFi), and covering radius is 50～200 meters, supports 4～6 active users, and the maximum user movement speed of permission is 10 kilometers/hour.A SIM card similar to mobile phone is arranged in the femtocell, have facility information, identity information and configuration information, after powering up, authenticate automatically and authentication to network, connect after finishing registration by this SIM card.
Special-purpose security gateway is the door of linking up femtocell and mobile core network, and it is configured between IP broadband networks and the mobile core network, and each femtocell adopts IPsec technology and this security gateway to set up an encrypted tunnel.The switching that this security gateway need be handled a large amount of encrypted tunnels and leading subscriber advances/go out femtocell.
Concerning operator, use femtocell can bring following advantage: to improve service quality,, can obviously improve user's broadband and voice service quality owing to improved the indoor signal covering quality; Increase network capacity, each femtocell is equivalent to increase the base station, also increases the capacity of the whole network certainly; The rapid expansion network.
Concerning the user, use femtocell that following benefit is arranged: the indoor lattice signal of everywhere expiring, femtocell can provide and spread all over whole family's high-quality signal covering everywhere, can improve communication quality.
Therefore, when being deployed in 3G network, use femtocell can increase the capacity and the raising communication quality of the whole network, can also greatly save equipment cost, O﹠M cost and website lease expenses etc., therefore femtocell is subjected to the very big attention of operator as novel device.
The femtocell application scenarios comprises: expand capacity scene and additional covering scene.Expansion capacity scene adopts superposing traditional networking, that is, on the macrocell network coverage, stack one deck femtocell covers.In replenishing covering scene, femtocell covers the blind area of the macrocell network coverage.No matter be applied under the above-mentioned the sort of scene, all can occur the macrocell network coverage and femtocell unavoidably and cover overlapping phenomenon, in the overlapping region or the edge of femtocell, femtocell compares with the signal of macrocell network, the branch of not absolute power, as UE (User Equipment, subscriber equipment) when being arranged in above-mentioned zone, the problem of (Ping-Pong) gravity treatment that will occur rattling.
Wherein, ping-pong reselection is meant ping-pong, promptly in mobile communication system, if in certain zone two base station signal strength acute variation, mobile phone will switch between two base stations back and forth, produces " ping-pong ".
In the prior art, when the signal strength signal intensity of UE present position is lower than default thresholding, can triggers UE and measure neighbor cell signal relatively and select sub-district than the stronger signal of current area, resident then in the sub-district of new selection.When adopting femtocell to cover, because femtocell is mainly used in indoor, home environment, the mobility of UE is not strong in such environment, translational speed is slow.Within a certain period of time, UE always is in femtocell with the overlap-add region of macrocell network or be in femtocell edges cover zone, and signal fluctuation is big in these zones, and femtocell compares with the signal of macrocell network, the branch of not absolute power, therefore, ping-pong reselection can take place in UE, promptly, resident a little while to the macrocell network, resident a little while in the network of femtocell, cause insignificant flow process and Signalling exchange, and can cause the battery of UE to be exhausted very soon.
Summary of the invention
The embodiment of the invention provides a kind of ping-pong reselection control method, Apparatus and system, is used to reduce the generation of the ping-pong reselection situation of UE in the femtocell overlay area, and technical scheme is as follows:
A kind of ping-pong reselection control method comprises:
There is user equipment (UE) generation ping-pong reselection monitoring femtocell overlay area;
Adjust the cell reselection parameters of described femtocell; And/or the UE of refusal generation ping-pong reselection is resident at described femtocell.
A kind of ping-pong reselection control device comprises:
Monitoring means, being used to monitor has user equipment (UE) generation ping-pong reselection in the femtocell femtocell overlay area;
Performance element is used for adjusting the cell reselection parameters of described femtocell when described monitoring means has monitored UE generation ping-pong reselection; And/or the UE of refusal generation ping-pong reselection is resident at described femtocell.
A kind of femtocell comprises aforesaid ping-pong reselection control device.
A kind of ping-pong reselection control system comprises subscriber equipment and aforesaid ping-pong reselection control device in femtocell, at least one described femtocell overlay area.
The technical scheme that the embodiment of the invention provided, determine according to the frequency that the UE occurrence positions upgrades whether UE is in the ping-pong reselection state, for the UE that is in the ping-pong reselection state, further, reduce or avoid the situation of the ping-pong reselection of UE in the femtocell overlay area by the mode of location revision undated parameter or the resident femtocell of refusal UE.Thereby reduce owing to caused meaningless flow process of ping-pong reselection and Signalling exchange, reduce the power consumption of UE.
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 simple the introduction to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of a kind of ping-pong reselection control method of one embodiment of the invention;
Fig. 2 is the schematic flow sheet of the another kind of ping-pong reselection control method of another embodiment of the present invention;
Fig. 3 is the schematic flow sheet of the femtocell of another embodiment of the present invention with the UE information interactive process;
Fig. 4 is the schematic flow sheet of the another kind of ping-pong reselection control method of another embodiment of the present invention;
Fig. 5 is the schematic flow sheet of the another kind of ping-pong reselection control method of another embodiment of the present invention;
Fig. 6 is the structural representation of a kind of ping-pong reselection control device of another embodiment of the present invention;
Fig. 7 is the structural representation of another ping-pong reselection control device of another embodiment of the present invention;
Fig. 8 is the structural representation of another ping-pong reselection control device of another embodiment of the present invention;
Fig. 9 is the structural representation of another ping-pong reselection control device of another embodiment of the present invention;
Figure 10 is the structural representation of another ping-pong reselection control system of another embodiment of 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.
A kind of ping-pong reselection control method that the embodiment of the invention provides referring to shown in Figure 1, may further comprise the steps.
S101, whether monitoring femtocell has UE that ping-pong reselection takes place in the overlay area.
S102 when having UE that ping-pong reselection takes place, carries out ping-pong reselection control in monitoring the femtocell overlay area.
Wherein, described ping-pong reselection control can comprise following mode:
Mode 1 is adjusted the cell reselection parameters of described femtocell;
Mode 2, the UE of refusal generation ping-pong reselection is resident at described femtocell.
The executive agent of any step of said method can be femtocell itself, also can be a functional entity that is independent of femtocell.Wherein, the selection of above-mentioned two kinds of ping-pong reselection control modes can allow the quantity decision of resident UE according to femtocell, for example, and when femtocell allows the negligible amounts of resident UE, but selection mode 1); And the quantity that allows resident UE as femtocell is more for a long time, but selection mode 2).
In actual applications, the mode of operation of femtocell comprises two kinds of closed (sealing) pattern and open (opening) patterns, under the closed pattern, femtocell allows the negligible amounts of resident UE, and it is feasible keeping monitoring the ping-pong reselection behavior of each UE in real time and adjusting cell reselection parameters; Therefore and under the open pattern, UE does not insert restricted number, for the UE that ping-pong reselection takes place, can temporarily refuse its resident at femtocell, even it only resides at macrocell, thereby avoids the ping-pong reselection phenomenon.
Therefore, on the basis of preceding method, can also further increase a step of judging the femtocell mode of operation.The mode of operation of femtocell can for example, be represented the closed pattern, represent the open pattern with " 1 " with " 0 " with a mode of operation parametric representation.This parameter is set when the femtocell initial deployment, in the course of work of femtocell, can also it be changed according to the demand of reality.In the present embodiment, can obtain the current mode of operation of femtocell by the mode of operation parameter that reads femtocell, if femtocell works in the closed pattern, then executive mode 1; If femtocell works in the open pattern, then executive mode 2.
The specific embodiment that will be applied under closed pattern and the open pattern technical solution of the present invention respectively describes below.
As shown in Figure 2, schematic flow sheet for the another kind of ping-pong reselection control method of another embodiment of the present invention, present embodiment has provided a kind of femtocell and has been operated in ping-pong reselection control method under the closed pattern, when femtocell is operated in closed pattern following time, there is UE that ping-pong reselection takes place in the femtocell overlay area if monitor, then adjusts the cell reselection parameters of femtocell.
S201, whether monitoring femtocell has UE that ping-pong reselection takes place in the overlay area.
In the embodiment of the invention, femtocell or be independent of the functional entity of femtocell and (comprise AU (Location Area Update according to the location update frequencies of the UE in the femtocell overlay area, the position is upgraded) frequency, and/or RAU (Routing Area Update, Routing Area Update) frequency), judges whether UE is in the ping-pong reselection state.For example, its deterministic process can comprise following content referring to shown in Figure 3:
S201a when the UE occurrence positions upgrades, sends Initial DT (Initial Direct Transfer, initialization direct transfers) message to femtocell, and carry location update (position renewal) cell in this message.
S201b after femtocell receives the Initial DT (wherein carrying location update cell) that UE sends, adds up the location update frequencies of this UE, and judges whether this UE is in the ping-pong reselection state.
For example, a femtocell or a functional entity that is independent of femtocell are set up a statistical table, add up position update time, the position of each UE and upgrade information such as cumulative number, and judge according to above-mentioned information whether UE is in the ping-pong reselection state, as shown in table 1.
Table 1
UE sign in the table 1 can adopt any information that can identify UE, for example IMSI (International Mobile Subscriber Identity, IMSI International Mobile Subscriber Identity).As UE when occurrence positions upgrades first in the femtocell overlay area, the time T 0 that record upgrades first, this moment Tn=T0, accumulative total update times n=1.When this UE occurrence positions upgrades, the value of Tn is upgraded afterwards, and with n value+1.
When position renewal for the second time takes place in UE, Tn-T0＞0, just can calculate the frequency n/ (Tn-T0) that the UE occurrence positions upgrades this moment, and judge with this whether this UE is in the ping-pong reselection state.For example, if the location update frequencies of UE has surpassed certain pre-set threshold (for example: 1 time/minute), judge that then this UE is in the ping-pong reselection state.Certainly, in actual applications, except the foundation location update frequencies is judged, can also add other Rule of judgment again, for example: (Tn-T0) need need be greater than certain threshold value greater than certain threshold value or update times n, or (Tn-T0) need be greater than certain threshold value the time, update times n also need just further judge according to location update frequencies greater than certain threshold value.Those skilled in the art can set above-mentioned threshold value according to the application demand of reality, and the embodiment of the invention does not limit this.
S202 when having UE that ping-pong reselection takes place, adjusts the cell reselection parameters of femtocell in monitoring the femtocell overlay area.
When in monitoring the femtocell overlay area, having UE that ping-pong reselection takes place, need to carry out corresponding ping-pong reselection control operation.For example, when femtocell is operated in closed pattern following time, can reduce the location update frequencies of UE by adjusting the cell reselection parameters of femtocell, thereby avoid or reduce the ping-pong reselection phenomenon of UE.
For example, present embodiment can also adopt the mode of the Qoffset (sub-district side-play amount) that adjusts femtocell, according to the cell reselection rules of 3GPP protocol definition, changes the Qoffset parameter, is equivalent to the signal strength threshold that changes the sub-district gravity treatment.Suppose sub-district gravity treatment thresholding RSCP (the Received Signal Code Power of femtocell, received signal code power) is-95dBm, the initial value of Qoffset is 0dB, if the Qoffset value is adjusted into 2dB, the sub-district gravity treatment thresholding that then is equivalent to femtocell becomes-95-2=-97dBm.That is to say, reside in the UE of femtocell, originally at RSCP be-the 95dBm place promptly can the occurrence positions renewal, and after adjusting Qoffset, need UE to move to RSCP and be-the just meeting occurrence positions renewal of 97dBm place, be equivalent to reduce the sub-district gravity treatment thresholding of femtocell, make the UE that is in femtocell covering edge can reside in femtocell comparatively constantly, thereby reduced the location update frequencies of UE, to reduce the ping-pong reselection phenomenon of UE.
In actual applications, also can adopt the method that progressively promotes Qoffset, and stipulate the adjustment higher limit of a Qoffset, to reduce influence the UE that ping-pong reselection does not take place.
Referring to shown in Figure 4, after execution of step S202, further carry out:
S203 judges that whether current Qoffset has reached the adjustment higher limit of Qoffset, if current Qoffset does not reach the adjustment higher limit of Qoffset, then carries out S204.If current Qoffset has reached the adjustment higher limit of Qoffset, for fear of the influence to UE that ping-pong reselection does not take place, follow-up will no longer the adjustment to Qoffset.
S204, the monitoring result of removing ping-pong reselection state is returned S201, restarts monitoring.
Suppose with 2dB to be that step-length is adjusted Qoffset, and the higher limit of regulation Qoffset is 6dB, so, use said method, at first Qoffset is adjusted into 2dB, the Qoffset of this moment does not also reach higher limit 6dB, therefore after removing the statistical table content, the position of restarting to detect each UE is new behavior and judge whether it ping-pong reselection takes place more, if still monitored UE ping-pong reselection takes place, and then the Qoffset value is adjusted into 4dB.Repeat above-mentioned steps, when Qoffset value was adjusted into higher limit 6dB, for fear of the influence to UE that ping-pong reselection does not take place, follow-up will no longer the adjustment was equivalent to the sub-district gravity treatment thresholding of femtocell is adjusted into-95-6=-101dBm at this moment.
Present embodiment is adjusted by the Qoffset parameter to femtocell, make the UE that is in femtocell covering edge can reside in femtocell comparatively constantly, thereby reduce the location update frequencies of UE, reach the effect of avoiding or reducing the ping-pong reselection phenomenon.Certainly, except adjusting the Qoffset parameter, can also reach similar effects by adjusting other cell reselection parameters, the embodiment of the invention elaborates no longer one by one, and these parameters can comprise: Treselection (gravity treatment time), Sintersearch (different-frequency measure thresholding), Sintrasearch (common frequency measurement thresholding), SinterRTT (system's measurements thresholding) and/or Qhyst (measuring sluggish) or the like.
In addition, after adjusting cell reselection parameters, adjusted cell reselection parameters value can be sent to the UE in the femtocell overlay area, for example by system message adjusted cell reselection parameters value is handed down to UE by femtocell.
On the other hand, consider the mobility of UE, its ping-pong reselection state is not what remain unchanged yet.Therefore, after the cell reselection parameters of adjusting femtocell, can also open a time set,, then adjusted cell reselection parameters be reverted to initial condition if (for example 1 hour) does not monitor and has UE that ping-pong reselection takes place in the femtocell overlay area at the appointed time.Can continue simultaneously to keep to the position of UE more new behavior monitor, in case find to have UE that ping-pong reselection takes place, then come the ping-pong reselection of UE is controlled by the cell reselection parameters of adjusting femtocell once more.
The foregoing description is introduced a kind of femtocell and is operated in ping-pong reselection control method under the closed pattern, under the closed pattern, femtocell allows the negligible amounts of resident UE, and it is feasible therefore keeping monitoring the behavior of each UE in real time and adjusting cell reselection parameters.And under the open pattern, UE does not insert restricted number, therefore in the present embodiment, for the UE that ping-pong reselection takes place, adopts and temporarily refuses it in the resident mode of femtocell, avoids the appearance of ping-pong reselection phenomenon.Figure 5 shows that the another kind of specific implementation method flow chart of another embodiment of the present invention, may further comprise the steps:
S501, whether monitoring femtocell has UE that ping-pong reselection takes place in the overlay area.
The monitoring mode of S501 can be similar with S201, here no longer repeat specification.
S502, when having UE that ping-pong reselection takes place in monitoring the femtocell overlay area, the UE of refusal generation ping-pong reselection is resident at described femtocell.
When having UE that ping-pong reselection takes place in monitoring the femtocell overlay area, it is resident at femtocell to refuse this UE, even it only resides at macrocell, thereby avoids the ping-pong reselection phenomenon.Femtocell refusal UE certain resident after, the statistics erasing of information can also be upgraded in the position of this UE correspondence, and continue the behavior of other UE of monitoring.
Femtocell refuse certain UE resident after, can issue a refuse information to this UE, inform that it can't obtain the normal service of femtocell, in refuse information, can also carry the cause value of refusal.If current UE exists with femtocell and is connected, then femtocell also will further discharge this connection, in the connection release message that sends to UE, also can carry the cause value that discharges connection.
Femtocell refuse certain UE resident after, after after a while, can recover to allow this UE resident at femtocell.In addition,, also can pass through start again and wait active behavior, recover certainly in the resident authority of femtocell from the angle of UE.
The scheme that is provided of this enforcement is applicable to a fairly large number of situation of resident UE among the femtocell, is specially adapted to the open pattern of femtocell.When femtocell is operated in the open pattern, generally be applied to the public arena, to the access quantity of UE without limits, therefore be not suitable for the behavior of each UE is kept monitoring.On the other hand, under the open pattern, the UE mobility is bigger, the possibility that UE rests on a position is not high, the ping-pong reselection possibility also decreases, therefore, and for the UE of a small amount of generation ping-pong reselection, adopt temporary transient refusal UE in the resident mode of femtocell, can effectively avoid the ping-pong reselection phenomenon of UE.
Above-mentioned two embodiment have introduced two kinds of methods of controlling UE ping-pong reselection in the femtocell overlay area respectively, to reduce or to avoid the situation of the ping-pong reselection of UE in the femtocell overlay area.Thereby reduce owing to caused meaningless flow process of ping-pong reselection and Signalling exchange, reduce the power consumption of UE.It will be appreciated by persons skilled in the art that also can be by realizing ping-pong reselection control in conjunction with above-mentioned two kinds of methods.For example, a UE amount threshold is set, when the UE quantity that inserts femtocell during less than this threshold value, adopt the method for adjusting cell reselection parameters, and, adopt the resident method of refusal UE, to realize ping-pong reselection control more flexibly when the UE quantity that inserts femtocell during greater than this threshold value.
Description by above method embodiment, the those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out all or part of step of the described method of each embodiment of the present invention.And aforesaid storage medium comprises: various media that can be program code stored such as read-only memory (ROM), random-access memory (ram), magnetic disc or CD.
Corresponding to above-mentioned method embodiment, another embodiment of the present invention also provides a kind of ping-pong reselection control device, and referring to shown in Figure 6, this device can comprise: monitoring means 610 and performance element 620.
Described monitoring means 610 is used to monitor whether user equipment (UE) generation ping-pong reselection is arranged in the femtocell femtocell overlay area.In another embodiment of the present invention, this monitoring means 610 can further can comprise:
The frequency statistics subelement, the location update frequencies that is used to add up the UE in the described femtocell overlay area;
Judgment sub-unit is used for whether surpassing default threshold value according to the location update frequencies of UE, judges whether UE ping-pong reselection takes place.
Described performance element 620 is used for carrying out ping-pong reselection control when described monitoring means has monitored UE generation ping-pong reselection; Described ping-pong reselection control comprises: the cell reselection parameters of adjusting described femtocell; Or the UE of refusal generation ping-pong reselection is resident at described femtocell.
Referring to shown in Figure 7, said apparatus can also comprise:
Mode determination 630 is used to judge the mode of operation of described femtocell.
If described femtocell works in sealing closed pattern, then described performance element 620 carries out ping-pong reselection control by the cell reselection parameters of adjusting described femtocell.
If described femtocell works in open open pattern, the UE that ping-pong reselection takes place by refusal then described performance element 620 controls at the resident ping-pong reselection that carries out of described femtocell.
Referring to shown in Figure 8, when performance element 620 carried out ping-pong reselection control by the cell reselection parameters of adjusting described femtocell, said apparatus can also comprise:
Referring to shown in Figure 9, the UE that ping-pong reselection takes place when performance element 620 by refusal is in that described femtocell is resident when carrying out ping-pong reselection control, and said apparatus can also comprise:
Refuse information issues unit 660, is used at described performance element 620 refusal UE issuing refuse information to described UE after described femtocell is resident.
The concrete course of work or the function of above-mentioned all unit can not repeat them here with reference to the described appropriate section of the related method embodiment of figure 1-5.
The ping-pong reselection control device that the embodiment of the invention provided, determine according to the frequency that the UE occurrence positions upgrades whether UE is in the ping-pong reselection state, for the UE that is in the ping-pong reselection state, further, reduce or avoid the situation of the ping-pong reselection of UE in the femtocell overlay area by the mode of location revision undated parameter or the resident femtocell of refusal UE.Thereby reduce owing to caused meaningless flow process of ping-pong reselection and Signalling exchange, reduce the power consumption of UE.
The ping-pong reselection control device that the embodiment of the invention provided can be femtocell, also can be built among the femtocell, and still can be the functional entity that is independent of femtocell.Be independent of the situation of femtocell at the ping-pong reselection control device, the embodiment of the invention also provides a kind of ping-pong reselection control system, referring to shown in Figure 10, this system comprises subscriber equipment 1020 and the ping-pong reselection control device 1030 in femtocell 1010, at least one described femtocell overlay area.Wherein, described ping-pong reselection control device 1030 can be identical with aforesaid ping-pong reselection control device, no longer repeat specification here.
For device or system embodiment, because it is substantially corresponding to method embodiment, so relevant part gets final product referring to the part explanation of method embodiment.Device described above or system embodiment only are schematic, wherein said unit as the separating component explanation can or can not be physically to separate also, the parts that show as the unit can be or can not be physical locations also, promptly can be positioned at a place, perhaps also can be distributed on a plurality of network element.Can select wherein some or all of module to realize the purpose of present embodiment scheme according to the actual needs.Those of ordinary skills promptly can understand and implement under the situation of not paying creative work.
In several embodiment that the application provided, should be understood that, disclosed system, apparatus and method not surpassing in the application's the spirit and scope, can realize in other way.Current embodiment is a kind of exemplary example, should be as restriction, and given particular content should in no way limit the application's purpose.For example, the division of described unit or subelement only is that a kind of logic function is divided, and during actual the realization other dividing mode can be arranged, and for example a plurality of unit or a plurality of subelement combine.In addition, a plurality of unit can or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.
In addition, institute's descriptive system, the schematic diagram of apparatus and method and different embodiment, in the scope that does not exceed the application, can with other system, module, technology or method in conjunction with or integrated.Another point, the shown or coupling each other discussed or directly to be coupled or to communicate to connect can be by some interfaces, the indirect coupling of device or unit or communicate to connect can be electrically, machinery or other form.
The above only is the specific embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (18)
1. a ping-pong reselection control method is characterized in that, comprising:
There is user equipment (UE) generation ping-pong reselection monitoring femtocell overlay area;
Adjust the cell reselection parameters of described femtocell; And/or the UE of refusal generation ping-pong reselection is resident at described femtocell.
2. method according to claim 1 is characterized in that, also comprises: the mode of operation of judging described femtocell;
If described femtocell works in closed mode, then adjust the cell reselection parameters of described femtocell;
If described femtocell works in open mode, then the UE of refusal generation ping-pong reselection is resident at described femtocell.
3. method according to claim 1 is characterized in that, has UE that ping-pong reselection takes place in the described monitoring femtocell overlay area, specifically comprises:
Add up the location update frequencies of UE in the described femtocell overlay area, when the location update frequencies of certain UE surpasses default threshold value, judge that ping-pong reselection takes place this UE.
4. according to each described method of claim 1 to 3, it is characterized in that, the cell reselection parameters of described adjustment femtocell, comprise following one of at least:
Adjust gravity treatment time, different-frequency measure thresholding, common frequency measurement thresholding, system's measurements thresholding, measurement sluggishness and the sub-district side-play amount of described femtocell.
5. method according to claim 4 is characterized in that, the sub-district side-play amount of described adjustment femtocell specifically comprises:
Improve the sub-district side-play amount of described femtocell,
If still monitor UE ping-pong reselection taking place, then continues to improve described sub-district side-play amount, up to described sub-district side-play amount is increased to default higher limit.
6. according to each described method of claim 1 to 3, it is characterized in that after the cell reselection parameters of described adjustment femtocell, described method also comprises:
Adjusted cell reselection parameters is handed down to UE in the described femtocell overlay area.
7. according to each described method of claim 1 to 3, it is characterized in that after the cell reselection parameters of described adjustment femtocell, described method also comprises:
Whether continue has UE that ping-pong reselection takes place in the described femtocell of the monitoring overlay area;
If monitor UE at the appointed time ping-pong reselection not taking place, then the cell reselection parameters of being adjusted is reverted to initial condition.
8. according to each described method of claim 1 to 3, it is characterized in that the UE of described refusal generation ping-pong reselection is after described femtocell is resident, described method also comprises:
UE to described generation ping-pong reselection issues refuse information.
9. according to each described method of claim 1 to 3, it is characterized in that the UE of described refusal generation ping-pong reselection is after described femtocell is resident, described method also comprises:
Through after the stipulated time, recover to allow described UE resident at described femtocell.
10. a ping-pong reselection control device is characterized in that, comprising:
Monitoring means, being used to monitor has user equipment (UE) generation ping-pong reselection in the femtocell femtocell overlay area;
Performance element is used for adjusting the cell reselection parameters of described femtocell when described monitoring means has monitored UE generation ping-pong reselection; And/or the UE of refusal generation ping-pong reselection is resident at described femtocell.
11. device according to claim 10 is characterized in that, also comprises:
Mode determination is used to judge the mode of operation of described femtocell;
If described femtocell works in closed mode, then described performance element is adjusted the cell reselection parameters of described femtocell;
If described femtocell works in open mode, the UE that ping-pong reselection takes place then described performance element refusal is resident at described femtocell.
12. device according to claim 10 is characterized in that, described monitoring means comprises:
The frequency statistics subelement, the location update frequencies that is used to add up the UE in the described femtocell overlay area;
Judgment sub-unit is used for whether surpassing default threshold value according to the location update frequencies of UE, judges whether UE ping-pong reselection takes place.
13. according to each described device of claim 9 to 12, it is characterized in that, also comprise:
Parameter issues the unit, is used for the adjusted cell reselection parameters of described performance element is handed down to UE in the described femtocell overlay area.
14. according to each described device of claim 9 to 12, it is characterized in that, also comprise:
The parameter recovery unit is used for after described performance element is adjusted cell reselection parameters and described monitoring means does not monitor UE when ping-pong reselection takes place at the appointed time, and the cell reselection parameters of being adjusted is reverted to initial condition.
15. according to each described device of claim 9 to 12, it is characterized in that, also comprise:
Refuse information issues the unit, is used at described performance element refusal UE issuing refuse information to described UE after described femtocell is resident.
16. according to each described device of claim 9 to 12, it is characterized in that, also comprise:
Resident recovery unit is used at described performance element refusal UE residently and through after the stipulated time at described femtocell, recovers to allow described UE resident at described femtocell.
17. a femtocell is characterized in that, comprises as each described ping-pong reselection control device of claim 10 to 16.
18. a ping-pong reselection control system is characterized in that, comprise in femtocell, at least one described femtocell overlay area subscriber equipment and as each described ping-pong reselection control device of claim 10 to 16.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101956435A CN102026222A (en) | 2009-09-09 | 2009-09-09 | Ping-pong reselection control method, device and system |
| PCT/CN2010/076064 WO2011029365A1 (en) | 2009-09-09 | 2010-08-17 | Method, device and system for ping-pong handover control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2009101956435A CN102026222A (en) | 2009-09-09 | 2009-09-09 | Ping-pong reselection control method, device and system |
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| CN102026222A true CN102026222A (en) | 2011-04-20 |
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| WO2011029365A1 (en) | 2011-03-17 |
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