CN101931985A - Selecting method of service cell and network side equipment - Google Patents
Selecting method of service cell and network side equipment Download PDFInfo
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Abstract
The embodiment of the invention provides a selecting method of a service cell, which comprises the steps of: measuring an uplink of the cell according to the uplink triggering quality set for a cell uplink to obtain a measuring result of the uplink triggering quality; and if the obtained measuring result of the uplink triggering quality meets a set uplink measuring event, selecting an uplink service cell according to the measuring result. The embodiment of the invention also provides network side equipment for selecting the service cell. All schemes provided by the embodiment of the invention ensure that the network side can select the cell with best uplink conditions as the uplink service cell from all cells according to the uplink conditions of all the cells, and avoid the interference caused by poor uplink conditions of the selected cell to the adjacent cells.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of system of selection and network equipment of Serving cell.
Background technology
In wireless communication system, coordinate multicast communication (Coordinated Multi-Pointtransmission, CoMP) technology is to improve an important means of sub-district overall performance and community marginal user performance, and wherein descending multipoint cooperative emission is meant that it is that subscriber equipment (UE) sends data that the launch point of a plurality of geographical position dispersion is united.
In coordinating multicast system, network node comprises the network equipment and one or some access points (Access Point), and access point is a node that comprises radio-frequency (RF) transceiver, and individual antenna unit or a plurality of antenna elements can be set on the access point.A plurality of access points dispersed and distributed and be connected to the network equipment on the geographical position.In coordinating multicast system, a plurality of access points can coordinates transmission and are received customer equipment data, and the access point of these coordinations can be from the same network equipment, also can be from the different network equipments.The relation of access point and traditional sub-district (cell) can be that a sub-district comprises an access point, or a sub-district comprises a plurality of access points.
In LTE or WCDMA system, the down transmitting power that all is based on the sub-district usually is that UE selects Serving cell.Also promptly, all be to select the Serving cell of UE sub-district that receive, that down transmitting power is stronger usually as this UE.
In heterogeneous network or similar network, if also adopt this selection mode, from a plurality of sub-districts, select a plurality of Serving cells, then have problem, such as, can not correctly choose the good sub-district of link condition for UE usually.
Summary of the invention
The embodiment of the invention provides a kind of system of selection and network equipment of Serving cell, for the user selects the good Serving cell of link condition.
For achieving the above object, embodiments of the invention adopt following technical scheme:
The system of selection of a kind of Serving cell of the embodiment of the invention may further comprise the steps:
According to the uplink triggering quality that is provided with for cell uplink, measure the up link of sub-district, obtain the measurement result of uplink triggering quality;
If the measurement result of the uplink triggering quality that is obtained satisfies the out-hole run incident that is provided with, then select uplink service cell according to described measurement result.
A kind of network equipment of selecting Serving cell of the embodiment of the invention comprises:
The measurement result acquisition module is used to obtain the measurement result of the uplink triggering quality of cell uplink;
Serving cell is selected module, is used for selecting uplink service cell according to described measurement result when the measurement result of the uplink triggering quality that is obtained satisfies the out-hole run incident that is provided with.
Serving cell system of selection and network equipment that the embodiment of the invention provides, this scheme is according to for the uplink triggering quality of cell uplink setting the up link of sub-district being measured, obtain the measurement result of uplink triggering quality, and when measurement result satisfies the out-hole run incident that is provided with, select uplink service cell according to this measurement result, thereby make that network side can be according to the uplink scenario of each sub-district, from each sub-district, select the good sub-district of uplink conditions as uplink service cell, also avoided the bad interference that the adjacent area is caused of uplink conditions because of the sub-district of selecting.
Description of drawings
The flow chart that Fig. 1 provides for one embodiment of the invention;
The flow chart that Fig. 2 provides for another embodiment of the present invention;
The structure chart of the network equipment that Fig. 3 provides for the embodiment of the invention.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention program is elaborated.
In heterogeneous network, the uplink and downlink link can use different Serving cells, and the transmitting power of these sub-districts can be different.
Can assign to the situation of different districts for this class uplink and downlink link, can be according to the prior art scheme, such as, with down transmitting power as choice criteria.But this method is selected to be the best sub-district of down link, in most of the cases, and such sub-district up link that all can not offer the best.That is to say, the sub-district of selecting according to down transmitting power, be used to provide up link, up link probably can not offer the best.
Such as, from the geographical position, if the transmitting power of the sub-district nearer apart from UE is less, and the transmitting power of the sub-district far away apart from this UE is bigger, the strongest sub-district of received power that measures of UE then, may still be this apart from UE the far away but bigger sub-district of transmitting power.At this situation, can be with apart from sub-district far away uplink service cell as UE.And the sub-district of distance is not the good sub-district of uplink quality usually.And, after having selected uplink service cell according to down link, UE is in order to carry out uplink communication with this sub-district, need bigger uplink transmission power, obviously this can produce bigger interference to network side, and it is the sub-district that this interference is nearer for distance UE, transmitting power is less and Yan Huigeng is big, or even intolerable.
Thus, various embodiments of the present invention mainly provide a kind of cell selecting method at heterogeneous network or similar network, select suitable uplink service cell so that network can be UE according to the concrete condition of up link.That various embodiments of the present invention and providing are more optimized, as to select suitable descending Serving cell for UE scheme.Wherein, the main feature of this heterogeneous network or similar network is, can provide uplink downlink for UE by different sub-districts.
The Serving cell system of selection that the embodiment of the invention provides as shown in Figure 1, may further comprise the steps:
If the measurement result of the uplink triggering quality that step 102 obtained satisfies the measurement event that is provided with, select uplink service cell according to this measurement result.
By above-mentioned implementation, can carry out the measurement of up link to the sub-district, measurement result according to up link is selected uplink service cell, thereby can guarantee to select the good sub-district of up link as uplink service cell into UE, avoided selecting to cause to select the good sub-district of link condition, and avoided the bad interference that the adjacent area is caused of uplink conditions because of the sub-district of selecting as uplink service cell according to down link.
Again with other embodiment, the present invention program is elaborated below.
In the various embodiments of the present invention, be the uplink triggering quality that cell uplink is provided with, can be the path loss of UE and minizone, also can be the upward signal of UE at the received power of sub-district, signal receiving strength etc.
For triggering quality is the situation of path loss, in the above-mentioned steps 101, according to the up link of the uplink triggering quality measurement sub-district that is provided with for cell uplink, specifically can be the measurement of being carried out path loss by UE.
UE carries out the path loss measurement specifically can adopt following scheme:
UE obtains the transmitting power of sub-district, and by measuring the received power that obtains this sub-district, calculates the path loss of UE and minizone according to transmitting power and received power.
Wherein, UE obtains the transmitting power of sub-district, comprising the transmitting power of obtaining Serving cell and neighbor cell, for the transmitting power of Serving cell, specifically can be to obtain by the transmitting power of carrying in the message of the network equipment by broadcasting or dedicated channel transmission that receives this Serving cell.
For the transmitting power of neighbor cell, if this neighbor cell is broadcasted the transmitting power of this sub-district, then UE can directly obtain the transmitting power of this sub-district by the broadcasting of neighbor cell.If send the transmitting power of this neighbor cell by Serving cell by broadcasting or dedicated channel, the then broadcasting that UE can be by receiving Serving cell or the message of dedicated channel be obtained the transmitting power of this neighbor cell.
Correspondingly, in the above-mentioned steps 102,, then select uplink service cell according to this measurement result if the measurement result of the uplink triggering quality that is obtained also is that the path loss between UE and Serving cell and/or neighbor cell satisfies the measurement event that is provided with.
For path loss, the measurement event of setting specifically can be: if circuit loss value can be called OFFSET with this threshold value less than the threshold value that is provided with
(path loss), then UE reports network side with this measurement result.Certainly, can also be circuit loss value between UE and Serving cell greater than the threshold value that is provided with, and/or the circuit loss value between UE and neighbor cell is during less than the threshold value that is provided with, UE reports network side with measurement result.In other words, if the circuit loss value between UE and Serving cell, can not measured neighbor cell even then there is neighbor cell less than the threshold value that is provided with yet; And if the circuit loss value between UE and Serving cell then should be measured neighbor cell greater than the threshold value that is provided with.
Network side then can be according to measurement result, and promptly the path loss between UE and Serving cell and/or neighbor cell for this UE selects the good sub-district of uplink conditions as uplink service cell, promptly selects the little sub-district of path loss as uplink service cell.
The measurement event that is provided with can also be: if the circuit loss value between UE and Serving cell greater than the circuit loss value between UE and neighbor cell, then UE reports network side with this measurement result; Or, if the difference of the circuit loss value between circuit loss value between UE and Serving cell and UE and neighbor cell is greater than the threshold value that is provided with, then UE reporting measurement result.Wherein, the measurement result that reports can comprise the circuit loss value of Serving cell and neighbor cell simultaneously.Can think that if both of these case, then the uplink situation of Serving cell should be than neighbor cell difference; therefore; network side can carry out the selection of Serving cell again according to the measurement result of Serving cell and neighbor cell, and, usually can be with neighbor cell as Serving cell.
The aforementioned measurement event of mentioning is provided with situation, all be at the situation of having only a Serving cell, if a plurality of Serving cells are arranged, can also be the mean value of getting circuit loss value between UE and these Serving cells so, or get minimum value, regard this mean value or minimum value as in the aforementioned measurement event of the mentioning circuit loss value between UE and Serving cell.Other parts are then identical with being provided with of aforementioned measurement thing.
Certainly, aforementioned triggering quality, threshold value and measurement event specifically can be informed UE by issuing a notice to UE by network side.
For triggering quality the upward signal of UE in the situation of the signal received power of sub-district, signal receiving strength etc., in the above-mentioned steps 101, measuring the up link of sub-district according to the triggering quality that is provided with for cell uplink, specifically can be by network side the upward signal of this UE to be measured at the signal received power of sub-district, signal receiving strength etc.This measurement is the measurement to neighbor cell, also can be the measurement to Serving cell.
Network side is measured specifically can adopt following scheme:
The measuring-signal that network side is measured can comprise: the uplink SRS that UE sends, go up the signal that sends at up shared data channel (PUSCH), the signal that perhaps up shared physical control channel (PUCCH) upward sends etc.
The concrete grammar that network side obtains the out-hole run result can be:
Measure the Resource Unit (RE of this user data of carrying, control information, uplink reference symbol, ResourceElement, or RB, Resource Block) signal power, the mean value of the Resource Block signal power that calculating measures, for example line taking is average, thereby obtains the signal received power of sub-district.Signal receiving strength then can calculate acquisition according to signal received power and disturbed condition.
In addition, above-mentioned network side obtains the out-hole run result, can be signal received power and/or signal receiving strength that neighbor cell and Serving cell are measured this sub-district respectively.For the situation of neighbor cell measurement, neighbor cell also will be dealt into Serving cell to measurement result, specifically can be the base station of issuing Serving cell.This transmission specifically has dual mode: Event triggered and cycle trigger.
Correspondingly, in the above-mentioned steps 102,, then select uplink service cell according to this measurement result if the measurement result of the triggering quality that is obtained also is that the signal received power and/or the signal receiving strength of upward signal in the sub-district of UE satisfies the measurement event that is provided with.For convenience of description, following upward signal with UE is in the signal received power of sub-district, the upward signal reception condition that signal receiving strength abbreviates the sub-district as.
For the ascending power of UE, the measurement event of setting specifically can be: if at the upward signal reception condition of sub-district greater than the threshold value that is provided with, this threshold value can be called 0FFSET
(ascending power), then network side is selected uplink service cell according to this measurement result.And this network side is the base station of Serving cell normally.Certainly, can also be in the upward signal reception condition of Serving cell less than the threshold value that is provided with, and/or the upward signal reception condition of neighbor cell is selected uplink service cell according to this measurement result during greater than the threshold value that is provided with.That is to say,, can provide up preferably service,, also can not consider the measurement result of neighbor cell even then there is neighbor cell for this UE if the upward signal reception condition of Serving cell illustrates that greater than the threshold value that is provided with Serving cell is nearer apart from UE; And if the upward signal reception condition of Serving cell illustrates then that greater than the threshold value that is provided with this Serving cell embarrasses this UE that up preferably service is provided, must consider the measurement result of neighbor cell, carry out the selection of Serving cell according to this measurement result.
Network side can be according to measurement result, it is the upward signal reception condition of Serving cell and/or neighbor cell, for this UE selects the good sub-district of uplink conditions as uplink service cell, promptly select the big sub-district of upward signal received power and/or signal receiving strength as uplink service cell.
At the upward signal reception condition, measurement event can also be set to: if at the upward signal reception condition of Serving cell less than upward signal reception condition at neighbor cell, then select uplink service cell according to measurement result; Or, if,, then select uplink service cell according to measurement result greater than the threshold value that is provided with at poor with at the upward signal reception condition of Serving cell of the upward signal reception condition of neighbor cell.Wherein, select the used measurement result of uplink service cell, can comprise upward signal reception condition simultaneously at Serving cell and neighbor cell.
Aforementioned two kinds of specific implementations at up link selection uplink service cell all can select the good sub-district of up link as uplink service cell for UE.The scheme of selecting for the path loss that records according to UE, because path loss can reflect the distance between sub-district and the UE, and the signal power that receive on up direction the sub-district is the poor of the transmitting power of UE and path loss, therefore, under the constant situation of UE transmitting power, circuit loss value is more little, the received power of base station is big more, this sub-district provides the performance of up service just good more for UE, thereby, according to each sub-district is that same UE measures the path loss that obtains, and can select the best sub-district of uplink conditions as uplink service cell for UE.The scheme of selecting for the cell uplink signal received power that records according to network side and/or signal receiving strength, then except selecting the best sub-district of uplink conditions as the uplink service cell for UE, also avoided UE to participate in the measurements and calculations of circuit loss value, more can save the electric quantity consumption of UE, in addition, the transmitting power of the neighbor cell that the circuit loss value of UE calculating neighbor cell is required, usually be transferred to UE by eating dishes without rice or wine, the scheme of measuring by network side, the then signaling consumption that can avoid this to eat dishes without rice or wine.
The various embodiments described above have mainly provided the uplink service cell selection scheme at up link.The following embodiment of the present invention also provides the selection scheme at the up-downgoing Serving cell of uplink downlink.
Specifically, as shown in Figure 2, may further comprise the steps:
If the measurement result of the uplink triggering quality that step 202 obtained satisfies the out-hole run incident that is provided with, then select uplink service cell according to the measurement result of this uplink triggering quality, and/or, if the measurement result of descending triggering quality satisfies the down-run survey incident that is provided with, then select descending Serving cell according to the measurement result of descending triggering quality.
The triggering quality of above-mentioned up link embodiment as shown in Figure 1 is described, can be ascending power of circuit loss value, UE etc., and measurement event also is similar.Therefore mainly the triggering quality of down link and measurement event etc. are described below.
For the triggering quality of down link, specifically can be descending received power, such as RSRP (reference symbol received power), RSRQ (reference symbol receiving intensity) etc.Here of particular note, considering the situation that the up-downgoing Serving cell is selected simultaneously for needs, is that the triggering quality of up link is different with the triggering quality of down link at the minimum requirements of uplink downlink triggering quality.Such as, if descending employing be RSRP as triggering quality, the up RSRQ that then can adopt is as triggering quality.
Specifically, in the above-mentioned steps 201, can measure the descending received power of sub-district by UE.
The measurement event that is provided with can be: if descending received power can be called OFFSET with this threshold value greater than the threshold value that is provided with
(descending received power), then in the above-mentioned steps 202, can this measurement result be reported network side by UE, network side then can be according to the descending received power of Serving cell and/or neighbor cell, for this UE selects the good sub-district of down link condition as descending Serving cell.Promptly select the big sub-district of descending received power as descending Serving cell.
Select uplink service cell similar with aforementioned at up link, at descending received power, also multiple measurement event can be set, such as, measurement event can also be set to: if the descending received power of Serving cell less than the threshold value that is provided with, and/or the descending received power of neighbor cell is greater than the threshold value that is provided with; Perhaps, if the descending received power of Serving cell less than the descending received power of neighbor cell, or the descending received power of neighbor cell and Serving cell is poor, the threshold value greater than being provided with then reports network side by UE with this measurement result.Afterwards, network side then can be according to the descending received power of Serving cell and/or neighbor cell, for this UE selects the good sub-district of down link condition as descending Serving cell.
Similarly, if it is a plurality of that descending Serving cell has, then can get the descending received power maximum of each descending Serving cell, perhaps mean value, regard this value as in the above-mentioned measurement event of mentioning descending received power, other parts are then identical with being provided with of above-mentioned measurement event.
Certainly, because present embodiment can be considered up-downgoing simultaneously, therefore, for the specific implementation that needs UE to measure, can be when satisfying one of them measurement event, the measurement result of the triggering quality that up-downgoing is recorded all reports network side, such as, if satisfy the measurement event of path loss correspondence, then circuit loss value and the descending received power that records reported network side in the lump, for this situation, network side can only be selected uplink service cell according to path loss, also can select the uplink and downlink Serving cell respectively according to path loss and descending received power simultaneously, can also select uplink service cell according to path loss, and when descending received power satisfies the condition that is provided with, select descending Serving cell according to this descending received power; Also can be to satisfy which measurement event, just only report the measurement result of the triggering quality of this measurement event correspondence, such as, if satisfy the measurement event of descending received power correspondence, then the descending received power that only will record reports network side.
For embodiment shown in Figure 2, need be the up threshold value that is provided with, also need to be the descending threshold value that is provided with.During specific implementation, can threshold value be set respectively, also can only threshold value be set, for another then is provided with an amount of bias Δ P at upstream or downstream at up-downgoing.Such as, at down link a threshold value OFFSET is set
(descending received power), at up link an amount of bias Δ P is set then, thereby, be OFFSET at the threshold value of up link
(descending received power)+ Δ P.
Embodiment shown in Figure 2 makes network side to select the good sub-district of up link as uplink service cell for UE, can also be for UE select the good sub-district of down link as descending Serving cell, thus make UE the good sub-district of link condition all be arranged on uplink downlink as its Serving cell.
The present invention also provides and has realized the network equipment that Serving cell is selected, and the structure of this network equipment comprises measurement result acquisition module 301 and service cell selecting module 302 as shown in Figure 3.
Wherein, this measurement result acquisition module 301 is used to obtain the measurement result of the uplink triggering quality of up link; This Serving cell is selected module 302, then is used for selecting uplink service cell according to described measurement result when the measurement result of the uplink triggering quality that is obtained satisfies the out-hole run incident that is provided with.
As previously mentioned, uplink triggering quality can be a path loss, also can be signal received power and/or the signal receiving strength of the upward signal of UE in the sub-district.
For uplink triggering quality is the situation of path loss, this measurement result acquisition module, then specifically be used to receive UE according to sub-district that is provided with for cell uplink and the path loss between UE, measure the up link acquisition of sub-district and the up circuit loss value that reports, and with the measurement result of described up circuit loss value as the uplink triggering quality of cell uplink.Correspondingly, this Serving cell is selected module, then is used for when the up path loss that is obtained satisfies the out-hole run incident that is provided with, and selects the little sub-district of path loss as uplink service cell.
That is to say that in these cases, UE need measure path loss.Method embodiment is described as described above, path loss is measured, and specifically can be that Serving cell is measured, also can be neighbor cell is measured.And UE can report according to the measurement event that is provided with.This measurement event is specially:
If the circuit loss value of UE and minizone is less than the threshold value that is provided with, then UE reports network side with measurement result;
If the circuit loss value between UE and Serving cell is greater than the threshold value that is provided with, and/or the circuit loss value between UE and neighbor cell is less than the threshold value that is provided with, and then UE reports network side with measurement result;
If the circuit loss value between UE and Serving cell is greater than the circuit loss value between UE and neighbor cell, then UE reports network side with measurement result;
If the difference of the circuit loss value between circuit loss value between UE and Serving cell and UE and neighbor cell is greater than the threshold value that is provided with, then UE reports network side with measurement result;
For the situation that UE has a plurality of Serving cells, if average circuit loss value between UE and a plurality of Serving cell or minimum circuit loss value are greater than the threshold value that is provided with, and/or the circuit loss value between UE and neighbor cell then reports network side with measurement result less than the threshold value that is provided with;
If average circuit loss value between UE and a plurality of Serving cell or minimum circuit loss value are greater than the circuit loss value between UE and neighbor cell, then UE reports network side with measurement result;
If the difference of the circuit loss value between average circuit loss value between UE and a plurality of Serving cell or minimum circuit loss value and UE and neighbor cell is greater than the threshold value that is provided with, then UE reports network side with measurement result.
The upward signal that for uplink triggering quality is UE is in the signal received power of sub-district and/or the situation of signal receiving strength, this measurement result acquisition module, then specifically be used to measure the signal power of Resource Unit, calculate the mean value of measured signal power, obtain the signal received power of the upward signal of UE, and/or obtain described signal receiving strength according to described signal received power in the sub-district.Correspondingly, Serving cell is selected module, then be used at the upward signal of saying the UE that obtains when the signal received power of sub-district and/or signal receiving strength satisfy the out-hole run incident that is provided with, select the signal received power is big and/or signal receiving strength is big sub-district as uplink service cell.
As can be seen, in these cases, the measurement result acquisition module needs to obtain signal received power and/or the signal receiving strength of the upward signal of UE in the sub-district.And Serving cell is selected module, then specifically can be at the upward signal of the UE that is obtained when the signal received power of sub-district and/or signal receiving strength satisfy following arbitrary out-hole run incident, select the big sub-district of signal received power as uplink service cell:
If the upward signal of UE greater than the threshold value that is provided with, is then selected uplink service cell according to measurement result at the signal received power of sub-district and/or signal receiving strength;
If the upward signal of UE at the signal received power of Serving cell and/or signal receiving strength less than the threshold value that is provided with, and/or the upward signal of UE at the received power of neighbor cell and/or signal receiving strength greater than the threshold value that is provided with, then select uplink service cell according to measurement result;
If the upward signal of UE less than the upward signal of UE received power and/or the signal receiving strength at neighbor cell, is then selected uplink service cell according to measurement result at the signal received power of Serving cell and/or signal receiving strength;
If the upward signal of UE at the upward signal of the signal received power of neighbor cell and/or signal receiving strength and UE in the difference of the received power of Serving cell and/or signal receiving strength greater than the threshold value that is provided with, then select uplink service cell according to measurement result;
The situation that a plurality of Serving cells are arranged for UE, if the upward signal of UE at the average or minimum signal received power of a plurality of Serving cells and/or signal receiving strength less than the threshold value that is provided with, and/or, the upward signal of UE greater than the threshold value that is provided with, is then selected uplink service cell according to measurement result at the received power of neighbor cell and/or signal receiving strength;
If the upward signal of UE less than the upward signal of UE received power and/or the signal receiving strength at neighbor cell, is then selected uplink service cell according to measurement result at the average or minimum signal received power of a plurality of Serving cells and/or signal receiving strength;
If the upward signal of UE at the upward signal of the average or minimum signal received power of a plurality of neighbor cells and/or signal receiving strength and UE in the difference of the received power of Serving cell and/or signal receiving strength greater than the threshold value that is provided with, then select uplink service cell according to measurement result.
Embodiment is similar with preceding method, and this network equipment can also obtain the measurement result of the descending triggering quality of cellular downlink simultaneously.Such as, this measurement result acquisition module, can also be used to obtain the measurement result of the descending triggering quality of cellular downlink.This measurement result acquisition module specifically can be the descending received power that receives the cellular downlink that UE reports when satisfying measurement event, with the descending received power of the described cellular downlink measurement result as descending triggering quality.That is to say that UE should carry out the measurement of the descending received power of cellular downlink, and when satisfying the measurement event that is provided with, measurement result is sent to the measurement result acquisition module of network equipment.This measurement event specifically can be:
If the descending received power of sub-district is greater than the threshold value that is provided with, then UE reporting measurement result;
If the descending received power of Serving cell is less than the threshold value that is provided with, and/or the descending received power of neighbor cell is greater than the threshold value that is provided with, then UE reporting measurement result;
If the descending received power of Serving cell is less than the descending received power of neighbor cell, then UE reporting measurement result;
If the descending received power of the descending received power of neighbor cell and Serving cell is poor, less than the threshold value that is provided with, then UE reporting measurement result;
For UE the situation of a plurality of Serving cells is arranged, if the mean value of the descending received power of a plurality of Serving cells or minimum value less than the threshold value that is provided with, and/or the descending received power of neighbor cell is greater than the threshold value that is provided with, then UE reporting measurement result;
If the mean value of the descending received power of a plurality of Serving cells or minimum value are less than the descending received power of neighbor cell, then UE reporting measurement result;
If the mean value of the descending received power of the descending received power of neighbor cell and a plurality of Serving cells or minimum value is poor, less than the threshold value that is provided with, then UE reporting measurement result.
This Serving cell is selected module, then can be used for when the measurement result of the uplink triggering quality that is obtained satisfies the out-hole run incident that is provided with, select uplink service cell and descending Serving cell respectively according to the measurement result of described uplink triggering quality and the measurement result of descending triggering quality, also can only select uplink service cell according to the measurement result of uplink triggering quality.This Serving cell is selected module, can also directly select descending Serving cell according to the measurement result of described descending triggering quality.Embodiment is similar with preceding method, and for the situation that uplink triggering quality and descending triggering quality are set simultaneously, uplink triggering quality at least should be different with descending triggering quality.
Above-mentioned network side can select the good sub-district of up link as uplink service cell for UE, the interference that when having avoided selecting the bad sub-district of uplink conditions the adjacent area has been caused, can also be further for UE selects the good sub-district of down link as descending Serving cell, thereby make UE the good sub-district of link condition all be arranged on uplink downlink as its Serving cell.
One of ordinary skill in the art will appreciate that realize that all or part of step in the foregoing description method is to instruct relevant hardware to finish by program, this program can be stored in a kind of computer-readable recording medium.This storage medium can be a read-only memory, disk or CD etc.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection range with claim.
Claims (17)
1. the system of selection of a Serving cell is characterized in that, may further comprise the steps:
According to the uplink triggering quality that is provided with for cell uplink, measure the up link of sub-district, obtain the measurement result of uplink triggering quality;
If the measurement result of the uplink triggering quality that is obtained satisfies the out-hole run incident that is provided with, then select uplink service cell according to described measurement result.
2. method according to claim 1 is characterized in that, described uplink triggering quality for the cell uplink setting is the path loss between described sub-district and UE, perhaps is that the upward signal of UE is at the signal received power and/or the signal receiving strength of sub-district.
3. method according to claim 2, it is characterized in that, describedly select uplink service cell to be according to measurement result: select and UE between the little sub-district of circuit loss value as the uplink service cell of UE, the upward signal of perhaps selecting UE is the uplink service cell as UE in the big sub-district of the signal received power of sub-district and/or signal receiving strength.
4. method according to claim 1 is characterized in that, described uplink triggering quality for the cell uplink setting is the path loss between described sub-district and UE;
Described according to the uplink triggering quality that is provided with for cell uplink, measure the up link of sub-district, obtain the measurement result of uplink triggering quality, comprising:
UE obtains the transmitting power of described sub-district, by measuring the received power that obtains described sub-district, calculates the path loss of UE and described minizone according to described transmitting power and received power.
5. method according to claim 4 is characterized in that, described UE obtains the transmitting power of sub-district, comprising: UE obtains the transmitting power of Serving cell and/or neighbor cell,
Wherein, described UE obtains the transmitting power of Serving cell, comprising: receive described Serving cell by the message that broadcasting or dedicated channel send, obtain the transmitting power of the described Serving cell that carries in the described message;
Described UE obtains the transmitting power of neighbor cell, comprising: receive the message of described neighbor cell broadcasting, obtain the transmitting power of the described neighbor cell that carries in the described message; Perhaps, receive Serving cell, obtain the transmitting power of the described neighbor cell that carries in the described message by the message that broadcasting or dedicated channel send.
6. according to each described method in the claim 3 to 5, it is characterized in that the measurement event of setting is an one of the following:
If the circuit loss value of UE and minizone is less than the threshold value that is provided with, then UE reports network side with measurement result;
If the circuit loss value between UE and Serving cell is greater than the threshold value that is provided with, and/or the circuit loss value between UE and neighbor cell is less than the threshold value that is provided with, and then UE reports network side with measurement result;
If the circuit loss value between UE and Serving cell is greater than the circuit loss value between UE and neighbor cell, then UE reports network side with measurement result;
If the difference of the circuit loss value between circuit loss value between UE and Serving cell and UE and neighbor cell is greater than the threshold value that is provided with, then UE reports network side with measurement result;
If average circuit loss value between UE and a plurality of Serving cell or minimum circuit loss value are greater than the threshold value that is provided with, and/or the circuit loss value between UE and neighbor cell then reports network side with measurement result less than the threshold value that is provided with;
If average circuit loss value between UE and a plurality of Serving cell or minimum circuit loss value are greater than the circuit loss value between UE and neighbor cell, then UE reports network side with measurement result;
If the difference of the circuit loss value between average circuit loss value between UE and a plurality of Serving cell or minimum circuit loss value and UE and neighbor cell is greater than the threshold value that is provided with, then UE reports network side with measurement result.
7. method according to claim 1 is characterized in that, the described uplink triggering quality that is provided with for cell uplink is the upward signal of UE signal received power and/or the signal receiving strength in the sub-district;
Described according to the uplink triggering quality that is provided with for cell uplink, measure the up link of sub-district, obtain the measurement result of uplink triggering quality, comprise: network side is by measuring the signal power of Resource Unit, and calculate the mean value of measured signal power, obtain the signal received power of the upward signal of UE in the sub-district, and/or according to the signal received power signal calculated receiving intensity that is obtained.
8. method according to claim 7 is characterized in that, the measurement event of setting is an one of the following:
If the upward signal of UE greater than the threshold value that is provided with, is then selected uplink service cell according to measurement result at the signal received power of sub-district and/or signal receiving strength;
If the upward signal of UE at the signal received power of Serving cell and/or signal receiving strength less than the threshold value that is provided with, and/or the upward signal of UE at the received power of neighbor cell and/or signal receiving strength greater than the threshold value that is provided with, then select uplink service cell according to measurement result;
If the upward signal of UE less than the upward signal of UE received power and/or the signal receiving strength at neighbor cell, is then selected uplink service cell according to measurement result at the signal received power of Serving cell and/or signal receiving strength;
If the upward signal of UE at the upward signal of the signal received power of neighbor cell and/or signal receiving strength and UE in the difference of the received power of Serving cell and/or signal receiving strength greater than the threshold value that is provided with, then select uplink service cell according to measurement result;
If the upward signal of UE at the average or minimum signal received power of a plurality of Serving cells and/or signal receiving strength less than the threshold value that is provided with, and/or, the upward signal of UE greater than the threshold value that is provided with, then reports network side with measurement result at the received power of neighbor cell and/or signal receiving strength;
If the upward signal of UE less than the upward signal of UE received power and/or the signal receiving strength at neighbor cell, then reports network side with measurement result at the average or minimum signal received power of a plurality of Serving cells and/or signal receiving strength;
If the upward signal of UE at the upward signal of the average or minimum signal received power of a plurality of neighbor cells and/or signal receiving strength and UE in the difference of the received power of Serving cell and/or signal receiving strength greater than the threshold value that is provided with, then UE reports network side with measurement result.
9. method according to claim 1 is characterized in that, this method further comprises:
According to the descending triggering quality that is provided with for cellular downlink, measure the down link of sub-district, obtain the measurement result of descending triggering quality, and report network side;
If the measurement result of the uplink triggering quality that is obtained satisfies the out-hole run incident that is provided with, then network side is selected uplink service cell and descending Serving cell respectively according to out-hole run result and down-run survey result, perhaps, only select uplink service cell according to the out-hole run result.
10. method according to claim 1 is characterized in that, described method also comprises:
According to the descending triggering quality that is provided with for cellular downlink, measure the down link of sub-district, obtain the measurement result of descending triggering quality;
If the measurement result of the descending triggering quality that is obtained satisfies the down-run survey incident that is provided with, then select descending Serving cell according to described measurement result.
11. method according to claim 10 is characterized in that, it is one of following that the down-run survey incident of described setting comprises:
If the descending received power of sub-district is greater than the threshold value that is provided with, then UE reporting measurement result;
If the descending received power of Serving cell is less than the threshold value that is provided with, and/or the descending received power of neighbor cell is greater than the threshold value that is provided with, then UE reporting measurement result;
If the descending received power of Serving cell is less than the descending received power of neighbor cell, then UE reporting measurement result;
If the descending received power of the descending received power of neighbor cell and Serving cell is poor, less than the threshold value that is provided with, then UE reporting measurement result;
If the mean value of the descending received power of a plurality of Serving cells or minimum value are less than the threshold value that is provided with, and/or the descending received power of neighbor cell is greater than the threshold value that is provided with, then UE reporting measurement result;
If the mean value of the descending received power of a plurality of Serving cells or minimum value are less than the descending received power of neighbor cell, then UE reporting measurement result;
If the mean value of the descending received power of the descending received power of neighbor cell and a plurality of Serving cells or minimum value is poor, less than the threshold value that is provided with, then UE reporting measurement result.
12. method according to claim 11 is characterized in that,
The described threshold value that is provided with at descending received power with the threshold value that is provided with in the out-hole run incident, is same threshold value, and perhaps one of them threshold value adds the amount of bias of setting for another threshold value.
13. a network equipment of selecting Serving cell is characterized in that, comprising:
The measurement result acquisition module is used to obtain the measurement result of the uplink triggering quality of cell uplink;
Serving cell is selected module, is used for selecting uplink service cell according to described measurement result when the measurement result of the uplink triggering quality that is obtained satisfies the out-hole run incident that is provided with.
14. network equipment according to claim 13 is characterized in that,
Described measurement result acquisition module, be used to receive UE according to sub-district that is provided with for cell uplink and the path loss between UE, measure the up link acquisition of sub-district and the up circuit loss value that reports, and with the measurement result of described up circuit loss value as the uplink triggering quality of cell uplink;
Described Serving cell is selected module, is used for when the up path loss that is obtained satisfies the out-hole run incident that is provided with, and selects the little sub-district of path loss as uplink service cell;
Perhaps, described measurement result acquisition module is used to measure the signal power of Resource Unit, calculates the mean value of measured signal power, obtain the signal received power of the upward signal of UE, and/or obtain described signal receiving strength according to described signal received power in the sub-district;
Described Serving cell is selected module, be used at the upward signal of the UE that is obtained when the signal received power of sub-district and/or signal receiving strength satisfy the out-hole run incident that is provided with, select the signal received power is big and/or signal receiving strength is big sub-district as uplink service cell.
15. network equipment according to claim 14 is characterized in that,
Described measurement result acquisition module is used to receive sub-district that UE reports according to following arbitrary measurement event and the up circuit loss value between described UE, and with the measurement result of described up circuit loss value as the uplink triggering quality of cell uplink;
If the circuit loss value of UE and minizone is less than the threshold value that is provided with, then UE reports network side with measurement result;
If the circuit loss value between UE and Serving cell is greater than the threshold value that is provided with, and/or the circuit loss value between UE and neighbor cell is less than the threshold value that is provided with, and then UE reports network side with measurement result;
If the circuit loss value between UE and Serving cell is greater than the circuit loss value between UE and neighbor cell, then UE reports network side with measurement result;
If the difference of the circuit loss value between circuit loss value between UE and Serving cell and UE and neighbor cell is greater than the threshold value that is provided with, then UE reports network side with measurement result;
If average circuit loss value between UE and a plurality of Serving cell or minimum circuit loss value are greater than the threshold value that is provided with, and/or the circuit loss value between UE and neighbor cell then reports network side with measurement result less than the threshold value that is provided with;
If average circuit loss value between UE and a plurality of Serving cell or minimum circuit loss value are greater than the circuit loss value between UE and neighbor cell, then UE reports network side with measurement result;
If the difference of the circuit loss value between average circuit loss value between UE and a plurality of Serving cell or minimum circuit loss value and UE and neighbor cell is greater than the threshold value that is provided with, then UE reports network side with measurement result;
Perhaps, described Serving cell is selected module, be used at the upward signal of the UE that is obtained when the signal received power of sub-district and/or signal receiving strength satisfy following arbitrary out-hole run incident, selecting the big sub-district of signal received power as uplink service cell;
If the upward signal of UE greater than the threshold value that is provided with, is then selected uplink service cell according to measurement result at the signal received power of sub-district and/or signal receiving strength;
If the upward signal of UE at the signal received power of Serving cell and/or signal receiving strength less than the threshold value that is provided with, and/or the upward signal of UE at the received power of neighbor cell and/or signal receiving strength greater than the threshold value that is provided with, then select uplink service cell according to measurement result;
If the upward signal of UE less than the upward signal of UE received power and/or the signal receiving strength at neighbor cell, is then selected uplink service cell according to measurement result at the signal received power of Serving cell and/or signal receiving strength;
If the upward signal of UE at the upward signal of the signal received power of neighbor cell and/or signal receiving strength and UE in the difference of the received power of Serving cell and/or signal receiving strength greater than the threshold value that is provided with, then select uplink service cell according to measurement result;
If the upward signal of UE at the average or minimum signal received power of a plurality of Serving cells and/or signal receiving strength less than the threshold value that is provided with, and/or, the upward signal of UE greater than the threshold value that is provided with, is then selected uplink service cell according to measurement result at the received power of neighbor cell and/or signal receiving strength;
If the upward signal of UE less than the upward signal of UE received power and/or the signal receiving strength at neighbor cell, is then selected uplink service cell according to measurement result at the average or minimum signal received power of a plurality of Serving cells and/or signal receiving strength;
If the upward signal of UE at the upward signal of the average or minimum signal received power of a plurality of neighbor cells and/or signal receiving strength and UE in the difference of the received power of Serving cell and/or signal receiving strength greater than the threshold value that is provided with, then select uplink service cell according to measurement result.
16. network equipment according to claim 13 is characterized in that,
Described measurement result acquisition module is further used for obtaining the measurement result of the descending triggering quality of cellular downlink;
Described Serving cell is selected module, be used for when the measurement result of the uplink triggering quality that is obtained satisfies the out-hole run incident that is provided with, select uplink service cell and descending Serving cell respectively according to the measurement result of described uplink triggering quality and the measurement result of described descending triggering quality, perhaps only select uplink service cell according to the measurement result of described uplink triggering quality;
Perhaps, described Serving cell is selected module, is further used for selecting descending Serving cell according to the measurement result of described descending triggering quality.
17. network equipment according to claim 16 is characterized in that,
Described measurement result acquisition module is used to receive the descending received power of the cellular downlink that UE reports when satisfying following arbitrary measurement event, with the descending received power of the described cellular downlink measurement result as descending triggering quality;
If the descending received power of sub-district is greater than the threshold value that is provided with, then UE reporting measurement result;
If the descending received power of Serving cell is less than the threshold value that is provided with, and/or the descending received power of neighbor cell is greater than the threshold value that is provided with, then UE reporting measurement result;
If the descending received power of Serving cell is less than the descending received power of neighbor cell, then UE reporting measurement result;
If the descending received power of the descending received power of neighbor cell and Serving cell is poor, less than the threshold value that is provided with, then UE reporting measurement result;
If the mean value of the descending received power of a plurality of Serving cells or minimum value are less than the threshold value that is provided with, and/or the descending received power of neighbor cell is greater than the threshold value that is provided with, then UE reporting measurement result;
If the mean value of the descending received power of a plurality of Serving cells or minimum value are less than the descending received power of neighbor cell, then UE reporting measurement result;
If the mean value of the descending received power of the descending received power of neighbor cell and a plurality of Serving cells or minimum value is poor, less than the threshold value that is provided with, then UE reporting measurement result.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101082883A CN101931985A (en) | 2009-06-23 | 2009-06-23 | Selecting method of service cell and network side equipment |
| PCT/CN2010/074290 WO2010149037A1 (en) | 2009-06-23 | 2010-06-23 | Serving cell selection method and network side device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101082883A CN101931985A (en) | 2009-06-23 | 2009-06-23 | Selecting method of service cell and network side equipment |
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| CN101931985A true CN101931985A (en) | 2010-12-29 |
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| CN2009101082883A Pending CN101931985A (en) | 2009-06-23 | 2009-06-23 | Selecting method of service cell and network side equipment |
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| WO (1) | WO2010149037A1 (en) |
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| CN116095782A (en) * | 2022-12-23 | 2023-05-09 | 中国电信股份有限公司卫星通信分公司 | Method and device for accessing terminal to network and satellite communication system |
| CN116095782B (en) * | 2022-12-23 | 2024-05-28 | 中国电信股份有限公司卫星通信分公司 | Method and device for accessing terminal to network and satellite communication system |
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