CN102638861A - Method and device for selecting high-speed downlink packet access (HSDPA) system service cell - Google Patents
Method and device for selecting high-speed downlink packet access (HSDPA) system service cell Download PDFInfo
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- CN102638861A CN102638861A CN2011100386342A CN201110038634A CN102638861A CN 102638861 A CN102638861 A CN 102638861A CN 2011100386342 A CN2011100386342 A CN 2011100386342A CN 201110038634 A CN201110038634 A CN 201110038634A CN 102638861 A CN102638861 A CN 102638861A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
- H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
Abstract
The invention discloses a method and a device for selecting a high-speed downlink packet access (HSDPA) system service cell, which avoids the situation that the downlink throughput of a changed service cell is lower than that before the change. The method comprises the following steps: in the process of selecting a service cell for the user equipment, RNC (Radio Network Controller) acquires the downlink signal quality of neighboring cells of user equipment and the uplink signal quality of neighboring cells of the user equipment, which belong to an activating set, and selects a cell in the neighboring cells of the user equipment as the service cell of the user equipment, wherein the selected cell has the downlink signal quality meeting the first threshold requirement and meets any one of the following conditions: a) the cell with the downlink signal quality meeting the first threshold requirement and a cell with the uplink signal quality meeting the second threshold requirement belong to the same base station; and b) the uplink signal quality of the cell with the downlink signal quality meeting the first threshold requirement meets the third threshold requirement. In comparison with the prior art, the method and the device provided by the invention can better improve the throughput of the HSDPA service of the changed service cell.
Description
Technical field
The present invention relates to WCDMA (WCDMA) mobile communication technology, be specifically related to adopting high speed downlink packet to insert the system of selection and the device of Serving cell in (HSDPA, High Speed Downlink Packet Access) technological WCDMA system.
Background technology
In the WCDMA system that adopts the HSDPA technology; Subscriber equipment or title portable terminal (UE; User Equipment) can be under the control of radio network controller (RNC, Radio Network Controller) to the down-bound pilot frequency signal intensity or the quality of the detected sub-district of RNC report UE.Based on the down-bound pilot frequency signal intensity or the quality of these sub-districts, RNC can adjudicate whether change the current Serving cell of UE.In general, RNC can be with down-bound pilot frequency signal intensity or the top-quality sub-district Serving cell as UE, and sends data through the high-speed physical shared channel (HS-PDSCH, HighSpeed Physical Shared Channel) of Serving cell to UE.Simultaneously, UE the uplink and downlink direction also with Serving cell and Active Set in other sub-districts have DPCH.Wherein the sub-district in the Active Set possibly belong to one or more NodeB.
For receive professional UE with the HSDPA mode, UE can sub-district feedback of down channel quality indication (CQI, Channel Quality Indicator) and downlink data packet in Active Set receive correct (Ack) perhaps indication of incorrect (Nack).The NodeB of control Serving cell adopts which kind of coding and modulation system in the time of can adjudicating next time to these UE transmission data according to CQI; If NodeB receives the Nack indication; Be the data that UE does not have correct reception to send; Then NodeB can send the data that not have correct reception to UE once more according to the parameter determining of the automatic repeat requests of mixing (HARQ, Hybrid Automatic Repeat Request) of network side configuration.
For Universal Mobile Telecommunications System (UMTS, Universal Mobile TelecommunicationsSystem), down-bound pilot frequency signal intensity that UE receives or top-quality sub-district maybe be different with the quality of uplink signal best cell that receives UE.Promptly for UE, it is best in detected down-bound pilot frequency signal intensity of Serving cell or quality in all activated collection sub-district; And for the sub-district in the Active Set, best in UE uplink signal strength that Serving cell receives or the not all Active Set of the quality sub-district.Simple for describing, suppose that here Serving cell is sub-district A, uplink signal strength or top-quality sub-district are sub-district B.
Whether belong to same NodeB according to sub-district A and sub-district B, can be divided into following two kinds of scenes:
Scene one: when sub-district A and sub-district B are not same sub-districts; But when belonging to same NodeB; For UE provides the NodeB up CQI that B obtains from the sub-district of descending HSDPA service and the error rate of Ack or Nack information; The error rate of up CQI that obtains when being same sub-district with sub-district A and sub-district B and Ack or Nack information is identical, also is that the error rate is minimum in the up CQI that obtains of all activated collection sub-district and the Ack/Nack information.
Scene two: when sub-district A and sub-district B do not belong to same NodeB, be higher than the up CQI of sub-district B acquisition and the error rate of Ack or Nack information for UE provides the NodeB up CQI that A obtains from the sub-district of descending HSDPA service and the error rate of Ack or Nack information.
After if Serving cell changes; Scene two appears; The consequence that then might occur is: down channel intensity is compared Serving cell and is changed preceding better with quality; But the detected up channel error rate of NodeB of control Serving cell is higher before changing than Serving cell, causes descending appearance more to retransmit, thereby causes the downlink throughput capacity of Serving cell lower before changing than Serving cell.
Summary of the invention
Technical problem to be solved by this invention provides system of selection of a kind of high speed descending grouping access system Serving cell and device, and the downlink throughput capacity of avoiding occurring Serving cell after changing is lower before changing than Serving cell.
For solving the problems of the technologies described above, the invention provides the system of selection of a kind of high speed descending grouping access system Serving cell, comprising:
Selecting for subscriber equipment in the process of Serving cell; Radio network controller (RNC) obtains the downlink signal quality of the neighbor cell of this subscriber equipment; And the quality of uplink signal of neighbor cell that belongs to this subscriber equipment of Active Set, select that downlink signal quality in the said subscriber equipment neighbor cell satisfies first threshold requirement and satisfy below the sub-district of any condition as the Serving cell of this subscriber equipment:
A) sub-district of the sub-district of satisfied first threshold requirement of this downlink signal quality and satisfied second threshold requirement of quality of uplink signal belongs to same base station (NodeB);
B) this downlink signal quality satisfies satisfied the 3rd threshold requirement of quality of uplink signal of the sub-district of first threshold requirement.
Further, said first threshold requirement is the best sub-district of downlink signal quality in the neighbor cell of selecting this subscriber equipment; Or select that downlink signal quality is higher than the current service cell downlink signal quality and sub-district that downlink signal quality is best in the neighbor cell of this subscriber equipment.
Further; Said second threshold requirement is the best sub-district of quality of uplink signal in the neighbor cell of this subscriber equipment of selecting to belong to Active Set, and the quality of uplink signal that this second thresholding requires for the error rate of the channel quality indication that guarantees this subscriber equipment of base station right demodulation and send and feedback indication perhaps is set.
Further, the quality of uplink signal of the error rate requirement of indication is indicated and fed back to said the 3rd thresholding for the channel quality of assurance base station this subscriber equipment transmission of right demodulation.
Further; That downlink signal quality satisfies first threshold requirement in the said subscriber equipment neighbor cell of said selection and satisfy below the sub-district of any condition during as the Serving cell of this subscriber equipment; Carry out condition judgement a) earlier, carry out condition b again) judgement.
Further, said downlink signal quality is represented by the signal power of CPICH Common Pilot Channel (CPICH); Said uplink signal-channel quality is represented by up reception total wideband power (RTWP).
For solving the problems of the technologies described above, the present invention also provides a kind of high speed descending grouping access system Serving cell choice device, is positioned at radio network controller (RNC), comprising:
First module is used for obtaining the downlink signal quality of the neighbor cell of this subscriber equipment in the process of selecting Serving cell for subscriber equipment, and the quality of uplink signal of neighbor cell that belongs to this subscriber equipment of Active Set;
Second module, be used for selecting that said subscriber equipment neighbor cell downlink signal quality satisfies first threshold requirement and satisfy below the sub-district of any condition as the Serving cell of this subscriber equipment:
A) sub-district of the sub-district of satisfied first threshold requirement of this downlink signal quality and satisfied second threshold requirement of quality of uplink signal belongs to same base station (NodeB);
B) this downlink signal quality satisfies satisfied the 3rd threshold requirement of quality of uplink signal of the sub-district of first threshold requirement.
Further, said first threshold requirement is the best sub-district of downlink signal quality in the neighbor cell of selecting this subscriber equipment; Or select that downlink signal quality is higher than the current service cell downlink signal quality and sub-district that downlink signal quality is best in the neighbor cell of this subscriber equipment.
Further; Said second threshold requirement is the best sub-district of quality of uplink signal in the neighbor cell of this subscriber equipment of selecting to belong to Active Set, and the quality of uplink signal that this second thresholding requires for the error rate of the channel quality indication that guarantees this subscriber equipment of base station right demodulation and send and feedback indication perhaps is set.
Further, the quality of uplink signal of the error rate requirement of indication is indicated and fed back to said the 3rd thresholding for the channel quality of assurance base station this subscriber equipment transmission of right demodulation.
The embodiment of the invention not only selects adjacent area that downlink signal quality is superior to current service cell as new Serving cell; Uplink load or the quality of uplink signal of also judging neighbor cell can not cause downlink throughput capacity to descend, and therefore compare prior art and can better improve the HSDPA service throughput after Serving cell changes.
Description of drawings
Fig. 1 is an embodiment of the invention flow chart;
Fig. 2 is that Serving cell and candidate cell concern sketch map in the embodiment of the invention.
Embodiment
Hereinafter will combine accompanying drawing that embodiments of the invention are elaborated.Need to prove that under the situation of not conflicting, embodiment among the application and the characteristic among the embodiment be combination in any each other.
The present invention program: selecting for subscriber equipment in the process of Serving cell; Radio network controller (RNC) obtains the downlink signal quality of the neighbor cell of this subscriber equipment; And the quality of uplink signal of neighbor cell that belongs to this subscriber equipment of Active Set, select that downlink signal quality in the said subscriber equipment neighbor cell satisfies first threshold requirement and satisfy below the sub-district of any condition as the Serving cell of this subscriber equipment:
1) sub-district of the sub-district of satisfied first threshold requirement of this downlink signal quality and satisfied second threshold requirement of quality of uplink signal belongs to same base station (NodeB);
2) this downlink signal quality satisfies satisfied the 3rd threshold requirement of quality of uplink signal of the sub-district of first threshold requirement.
Owing to when selecting Serving cell, increased the condition relevant with quality of uplink signal; Therefore the downlink throughput capacity that can avoid Serving cell after changing occurring compares the lower situation of Serving cell before changing, compares prior art and can better improve the HSDPA service throughput after Serving cell changes.
The method of above-mentioned selection Serving cell can be applied to select Serving cell for subscriber equipment for the first time, also can be used for changing current service cell for subscriber equipment.
First when selecting Serving cell, this first threshold requirement can be to select the best sub-district of downlink signal quality in the neighbor cell of this subscriber equipment.When changing current service cell, this first threshold requirement can be to select that downlink signal quality is higher than the current service cell downlink signal quality and sub-district that downlink signal quality is best in the neighbor cell of this subscriber equipment.Selecting the best sub-district of downlink signal quality in the above-mentioned threshold requirement is a kind of optimal way, in addition can also adopt other modes, for example selects the inferior good sub-district of downlink signal quality etc.
For above-mentioned condition 1) sub-district of satisfying first threshold requirement possibly not be same sub-district with the sub-district of satisfied second threshold requirement of quality of uplink signal.Second threshold requirement can be to select to belong to the best sub-district of quality of uplink signal in the neighbor cell of this subscriber equipment of Active Set; The quality of uplink signal that this second thresholding is indicated for the channel quality that guarantees this subscriber equipment transmission of base station right demodulation and the error rate of feedback indication requires perhaps is set; This feedback indication comprises: packet receives correct indication, and perhaps packet receives incorrect indication.
For above-mentioned condition 2) sub-district of satisfying first threshold requirement is same sub-district with the sub-district that quality of uplink signal satisfies the 3rd threshold requirement, that is to say that sub-district as Serving cell except satisfied first threshold requirement, also should satisfy the 3rd threshold requirement.The 3rd threshold requirement and second threshold requirement can be the same or different, but the principle that is provided with is still channel quality indication that guarantees this subscriber equipment transmission of base station right demodulation and the error rate requirement of feeding back indication.
Preferably carry out condition 1 earlier) judgement, when condition 1) carry out condition 2 when not satisfying again) judgement.
Above-mentioned downlink signal quality can be by signal power (received power that the is called CPICH again) expression of CPICH Common Pilot Channel (CPICH, Common Pilot Channel); Above-mentioned uplink signal-channel quality can be represented by up reception total wideband power (RTWP, Received Total Received Wideband Power).
Realize the Serving cell choice device of said method, be positioned at RNC, comprising:
First module is used for obtaining the downlink signal quality of the neighbor cell of this subscriber equipment in the process of selecting Serving cell for subscriber equipment, and the quality of uplink signal of neighbor cell that belongs to this subscriber equipment of Active Set;
Second module, be used for selecting that said subscriber equipment neighbor cell downlink signal quality satisfies first threshold requirement and satisfy below the sub-district of any condition as the Serving cell of this subscriber equipment:
1) sub-district of the sub-district of satisfied first threshold requirement of this downlink signal quality and satisfied second threshold requirement of quality of uplink signal belongs to same NodeB;
2) this downlink signal quality satisfies satisfied the 3rd threshold requirement of quality of uplink signal of the sub-district of first threshold requirement.
The present invention will be described through an instance below, and following instance is mainly the scene of changing current service cell, can be with reference to this flow performing when selecting Serving cell for the first time.As shown in Figure 1, may further comprise the steps:
Step 10, portable terminal detects the downlink signal quality of neighbor cell, and testing result is reported radio network controller (RNC);
The downlink signal quality of above-mentioned neighbor cell is preferably the signal power size (received power that is called CPICH again) of the CPICH Common Pilot Channel (CPICH, Common Pilot Channel) of neighbor cell.
Above-mentioned neighbor cell comprises Active Set sub-district and inactive set sub-district.
Step 20, RNC has reported the uplink signal-channel quality of the neighbor cell of downlink signal quality to RNC from the portable terminal described in Node B (NodeB) obtaining step 10;
The uplink signal-channel quality of above-mentioned neighbor cell is preferably the up reception total wideband power of this neighbor cell (RTWP, Received Total Received Wideband Power).
In other embodiments, RNC can only obtain belong in the Active Set and portable terminal reported the uplink signal-channel quality of the neighbor cell of downlink signal quality to RNC.
This step is not limited to carry out at this moment, as long as before step 50, carry out.
Step 30, RNC compares the downlink signal quality of each neighbor cell according to the measurement result that reports in the step 10, and the candidate service set of cells is put in the adjacent area that downlink signal quality is better than current HS-PDSCH Serving cell downlink signal quality, execution in step 40;
When the common pilot signal quality of neighbor cell is higher than the current Serving cell of mobile subscriber, be illustrated in the residing position of current mobile user, the signal quality of this neighbor cell is better than the signal quality of current service cell.
It is more terse in order to make follow-up judgement describe making up the candidate service set of cells in this step, in other embodiments, also can not make up this candidate service set of cells.
Step 40, RNC judges that whether the candidate service set of cells is empty: if for sky then execution in step 10, otherwise execution in step 50;
Step 50; RNC judges whether the adjacent area that downlink signal quality in the candidate service set of cells is best and the sub-district of the uplink signal-channel quality in the current Active Set best (being that uplink load is minimum) belong to same NodeB; If belong to same NodeB; Then execution in step 90, otherwise then execution in step 60;
The up RTWP of sub-district is high more to show that the uplink load of sub-district is heavy more, shows that the uplink load of sub-district is light more otherwise RTWP is low more.
Step 60; RNC judges whether the uplink signal-channel quality of the adjacent area that downlink signal quality in the candidate service set of cells is best satisfies channel quality indication that base station right demodulation mobile subscriber sends and the error rate of feedback indication requires: if satisfy; Then execution in step 90, otherwise, execution in step 70;
Step 70 is deleted execution in step 80 with the best adjacent area of downlink signal quality in the current candidate service set of cells from the candidate service set of cells;
Step 80 judges whether current candidate service set of cells is empty, if be empty, then execution in step 100, otherwise execution in step 50;
Step 90 is selected the new Serving cell of the best sub-district of downlink signal quality in the candidate service set of cells as this portable terminal;
Step 100 selects adjacent area that a downlink signal quality is better than current HS-PDSCH Serving cell as new Serving cell.
For example; Select downlink signal quality than the best adjacent area of downlink signal quality in the good adjacent area of current HS-PDSCH Serving cell downlink signal quality as new Serving cell, perhaps select arbitrarily a downlink signal quality than the good adjacent area of current HS-PDSCH Serving cell downlink signal quality as new Serving cell.
Below in conjunction with Fig. 2 the foregoing description is described:
Cell1 is subscriber equipment (User Equipment, UE) current service cell; Cell1 and Cell2 are by base station NodeB 1 control, and UE only links with the Cell1 existence, promptly has only Cell1 in the Active Set.
Cell3 and Cell4 are the adjacent area of Cell1 and Cell2, respectively by base station NodeB 2 and NodeB3 control.
Base station NodeB 1, NodeB2 and NodeB3 control by same RNC.
When UE detects Cell2, during the downstream signal of Cell3 and Cell4, following operation is arranged according to the foregoing description:
Applying examples 1
The first step, UE monitors Cell2, and the signal of Cell3 and Cell4 reports RNC after measuring the common pilot signal quality of each sub-district;
In second step, RNC is from base station NodeB 1, and NodeB2 and NodeB3 place get access to Cell1, the RTWP of Cell2 and Cell3;
In the 3rd step, RNC is according to Cell2, and the common pilot signal quality report result of Cell3 and Cell4 finds that the common pilot signal quality of Cell2 and Cell3 is better than Cell1, therefore Cell2 and Cell3 is put into the candidate service set of cells;
The 4th step; RNC is according to the CPICH common pilot signal quality report result of Cell2 and Cell3; The common pilot signal quality of finding Cell2 is higher than Cell3, and judges that back discovery Cell2 and Cell1 control by NodeB1, and Cell2 is the minimum sub-district of RTWP in the Active Set; Be the best sub-district of uplink signal-channel quality in the Active Set, therefore selecting Cell2 is the new Serving cell of this UE.
Applying examples 2
The first step, UE monitors Cell2, and the signal of Cell3 and Cell4 reports RNC after measuring the common pilot signal quality of each sub-district;
In second step, RNC is from base station NodeB 1, and NodeB2 and NodeB3 place get access to Cell1, the RTWP of Cell2 and Cell3;
In the 3rd step, RNC is according to Cell2, and the common pilot signal quality report result of Cell3 and Cell4 finds that the common pilot signal quality of Cell2 and Cell3 is better than Cell1, therefore Cell2 and Cell3 is put into the candidate service set of cells;
The 4th step: RNC is according to the common pilot signal quality report result of Cell2 and Cell3; The common pilot signal quality of finding Cell3 is higher than Cell2; Judge and find that Cell3 is controlled by different NodeB with Cell1; But find that through measurement report the RTWP of Cell3 satisfies the error rate requirement that channel quality is indicated and feedback is indicated that base station right demodulation mobile subscriber sends, and therefore selects Cell3 as the new Serving cell of this UE.
One of ordinary skill in the art will appreciate that all or part of step in the said method can instruct related hardware to accomplish through program, said program can be stored in the computer-readable recording medium, like read-only memory, disk or CD etc.Alternatively, all or part of step of the foregoing description also can use one or more integrated circuits to realize.Correspondingly, each the module/unit in the foregoing description can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Certainly; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. high speed descending grouping access system Serving cell system of selection comprises:
Selecting for subscriber equipment in the process of Serving cell; Radio network controller (RNC) obtains the downlink signal quality of the neighbor cell of this subscriber equipment; And the quality of uplink signal of neighbor cell that belongs to this subscriber equipment of Active Set, select that downlink signal quality in the said subscriber equipment neighbor cell satisfies first threshold requirement and satisfy below the sub-district of any condition as the Serving cell of this subscriber equipment:
A) sub-district of the sub-district of satisfied first threshold requirement of this downlink signal quality and satisfied second threshold requirement of quality of uplink signal belongs to same base station (NodeB);
B) this downlink signal quality satisfies satisfied the 3rd threshold requirement of quality of uplink signal of the sub-district of first threshold requirement.
2. the method for claim 1 is characterized in that:
Said first threshold requirement is the best sub-district of downlink signal quality in the neighbor cell of selecting this subscriber equipment; Or select that downlink signal quality is higher than the current service cell downlink signal quality and sub-district that downlink signal quality is best in the neighbor cell of this subscriber equipment.
3. according to claim 1 or claim 2 method is characterized in that:
Said second threshold requirement is the best sub-district of quality of uplink signal in the neighbor cell of this subscriber equipment of selecting to belong to Active Set, and the quality of uplink signal that this second thresholding requires for the error rate of the channel quality indication that guarantees this subscriber equipment of base station right demodulation and send and feedback indication perhaps is set.
4. according to claim 1 or claim 2 method is characterized in that:
The quality of uplink signal of the error rate requirement of indication is indicated and fed back to the channel quality that said the 3rd thresholding sends for assurance base station this subscriber equipment of right demodulation.
5. the method for claim 1 is characterized in that:
That downlink signal quality satisfies first threshold requirement in the said subscriber equipment neighbor cell of said selection and satisfy below the sub-district of any condition during as the Serving cell of this subscriber equipment, carry out condition judgement a) earlier, carry out condition b again) judgement.
6. the method for claim 1 is characterized in that:
Said downlink signal quality is represented by the signal power of CPICH Common Pilot Channel (CPICH); Said uplink signal-channel quality is represented by up reception total wideband power (RTWP).
7. a high speed descending grouping access system Serving cell choice device is positioned at radio network controller (RNC), comprising:
First module is used for obtaining the downlink signal quality of the neighbor cell of this subscriber equipment in the process of selecting Serving cell for subscriber equipment, and the quality of uplink signal of neighbor cell that belongs to this subscriber equipment of Active Set;
Second module, be used for selecting that said subscriber equipment neighbor cell downlink signal quality satisfies first threshold requirement and satisfy below the sub-district of any condition as the Serving cell of this subscriber equipment:
A) sub-district of the sub-district of satisfied first threshold requirement of this downlink signal quality and satisfied second threshold requirement of quality of uplink signal belongs to same base station (NodeB);
B) this downlink signal quality satisfies satisfied the 3rd threshold requirement of quality of uplink signal of the sub-district of first threshold requirement.
8. device as claimed in claim 7 is characterized in that:
Said first threshold requirement is the best sub-district of downlink signal quality in the neighbor cell of selecting this subscriber equipment; Or select that downlink signal quality is higher than the current service cell downlink signal quality and sub-district that downlink signal quality is best in the neighbor cell of this subscriber equipment.
9. like claim 7 or 8 described devices, it is characterized in that:
Said second threshold requirement is the best sub-district of quality of uplink signal in the neighbor cell of this subscriber equipment of selecting to belong to Active Set, and the quality of uplink signal that this second thresholding requires for the error rate of the channel quality indication that guarantees this subscriber equipment of base station right demodulation and send and feedback indication perhaps is set.
10. like claim 7 or 8 described devices, it is characterized in that:
The quality of uplink signal of the error rate requirement of indication is indicated and fed back to the channel quality that said the 3rd thresholding sends for assurance base station this subscriber equipment of right demodulation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110038634.2A CN102638861B (en) | 2011-02-15 | 2011-02-15 | A kind of high speed descending grouping access system service cell selection method and device |
| PCT/CN2011/081278 WO2012109916A1 (en) | 2011-02-15 | 2011-10-25 | Serving cell selection method and device in high speed downlink packet access system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110038634.2A CN102638861B (en) | 2011-02-15 | 2011-02-15 | A kind of high speed descending grouping access system service cell selection method and device |
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| CN102638861A true CN102638861A (en) | 2012-08-15 |
| CN102638861B CN102638861B (en) | 2016-07-06 |
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| CN201110038634.2A Active CN102638861B (en) | 2011-02-15 | 2011-02-15 | A kind of high speed descending grouping access system service cell selection method and device |
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| WO (1) | WO2012109916A1 (en) |
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| CN103299681A (en) * | 2012-12-27 | 2013-09-11 | 华为技术有限公司 | Switching method and device |
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| CN100574505C (en) * | 2006-08-15 | 2009-12-23 | 大唐移动通信设备有限公司 | The user access method of high speed descending grouping access system and the communication equipment of application |
| CN101232730B (en) * | 2008-02-27 | 2010-12-29 | 中兴通讯股份有限公司 | Method for mobile equipment to priority select HSDPA district |
| CN101616459A (en) * | 2008-06-24 | 2009-12-30 | 上海华为技术有限公司 | A kind of realization method of cell reselection, terminal and system |
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- 2011-10-25 WO PCT/CN2011/081278 patent/WO2012109916A1/en active Application Filing
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| US20070097918A1 (en) * | 2005-10-27 | 2007-05-03 | Motorola, Inc. | Mobility enhancement for real time service over high speed downlink packet access (hsdpa) |
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| CN101873657A (en) * | 2009-04-23 | 2010-10-27 | 中兴通讯股份有限公司 | Method for estimating quality of uplink signal in neighboring area and switching and optimizing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103299681A (en) * | 2012-12-27 | 2013-09-11 | 华为技术有限公司 | Switching method and device |
| WO2014101071A1 (en) * | 2012-12-27 | 2014-07-03 | 华为技术有限公司 | Switching method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012109916A1 (en) | 2012-08-23 |
| CN102638861B (en) | 2016-07-06 |
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