CN100442936C - Method and device for switching in wireless telecommunication system - Google Patents
Method and device for switching in wireless telecommunication system Download PDFInfo
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- CN100442936C CN100442936C CNB2006100723082A CN200610072308A CN100442936C CN 100442936 C CN100442936 C CN 100442936C CN B2006100723082 A CNB2006100723082 A CN B2006100723082A CN 200610072308 A CN200610072308 A CN 200610072308A CN 100442936 C CN100442936 C CN 100442936C
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Abstract
In the invention, by saving the complete information in measurement report of mobile station, when the base station system receives the incomplete measurement report of mobile station, it can uses its saved complete information in measurement report of the mobile station to make switch process so as to avoid the issue that is incapable of initiating the switch because the measurement report doesn't comprises the information of neighboring cells.
Description
Technical field
The present invention relates to the network communications technology field, be specifically related to a kind of switching method in wireless communication system and switching device shifter.
Background technology
The coverage of wireless communication system is made up of continuous sub-district, in order to make travelling carriage in mobile communication process, can obtain the service that continues from the overlay area, and is more excellent in order to make network performance simultaneously, adopted handoff technique in the wireless communication system.By handoff technique, can make conversation in moving process, keep to reduce cutting off rate and congestion ratio on the other hand continuously on the one hand, thereby reach the purpose that improves network service quality.
GSM (Global System for Mobile communications, global system for mobile communications) to the judgement foundation of switching is: the measurement report that travelling carriage and base station regularly report, the measurement report here comprises two parts, be ascender measurement report and descender measurement report, wherein, the ascender measurement report is that detected mobile station signal acquisition is passed through in the base station, and the descender measurement report is that travelling carriage passes through detected base station signal acquisition.Comprise in the descender measurement report: service cell information and neighboring BS information.
In the measurement report that base station system (Base Station System) reports according to travelling carriage and base station about incoming level, the quality of reception and TA (the Timing Advance of Serving cell and adjacent area, Timing Advance) situation such as, according to certain judgment criterion, whether decision is initiated to switch, and initiates which kind of switching.
The roughly process that base station system is carried out hand-off process is: base station system receives after complete out-hole run report that travelling carriage and base station report and down-run survey report, at first measurement report is carried out certain processing, then, the complete measurement report that use is finished dealing with is as the input of handoff algorithms, and according to a series of switch decision criterion, determine whether to initiate the Target cell that switches and switch.
If owing to reason such as the up-link wireless environment is abominable, the down-run survey report that causes travelling carriage to report can not accurately be received by the base station, out-hole run report, down-run survey report that base station system is received are imperfect, as lacking neighboring BS information etc. in the measurement report, then base station system is not with the input of measurement report as handoff algorithms, like this, base station system is not carried out switch decision, at this moment, base station system is not initiated to switch, thereby causes the poor even generation call drop phenomenon of travelling carriage speech quality.Even if base station system is reported the input as handoff algorithms with incomplete out-hole run report, down-run survey that it receives, and switch decision passes through, at this moment, owing to reasons such as lacking neighboring BS information in the measurement report causes there is not Target cell, so, base station system still can not be initiated to switch, thereby still exists travelling carriage speech quality poor even produce phenomenon such as call drop.
Summary of the invention
The objective of the invention is to, a kind of switching method in wireless communication system and switching device shifter are provided, make base station system when receiving the incomplete measurement report of travelling carriage, can normally initiate to switch, improved travelling carriage speech quality, avoid the call drop phenomenon, finally improved user satisfaction.
For achieving the above object, a kind of switching method in wireless communication system provided by the invention comprises:
A, base station system preserve the information in last or the last a plurality of complete measurement report of travelling carriage;
B, base station system utilize the information in the historical complete measurement report of this travelling carriage of its preservation to carry out hand-off process after receiving the incomplete measurement report of travelling carriage; Described incomplete measurement report is to lack to carry out the measurement report that needs the information used in the handoff procedure.
The base station system canned data comprises among the described step a: down-run survey result, and incomplete measurement report is among the described step b: comprise the out-hole run result but lack down-run survey result's measurement report.
Described step b comprises: base station system is at the incomplete measurement report that receives travelling carriage and when determining that the predetermined condition of utilizing imperfect measurement report to carry out hand-off process satisfies, and utilizes the information in the complete measurement report of this travelling carriage of its preservation to carry out hand-off process.
Described predetermined condition is: the number of not having the measurement report of downlink information continuously is no more than predetermined number one, and described step b comprises:
Base station system is no more than predetermined number for the moment in the number of the measurement report of the continuous no downlink information of determining travelling carriage, utilizes the information in the complete measurement report of this travelling carriage of its preservation to carry out hand-off process.
Described method also comprises: base station system is at the incomplete measurement report that receives travelling carriage and when determining that described predetermined condition does not satisfy, do not carry out hand-off process, up to the complete measurement report that receives this travelling carriage, base station system is just carried out hand-off process according to the current complete measurement report that receives.
The base station system canned data also comprises among the described step a: the out-hole run result, and the step that described step b utilizes information in the complete measurement report of this travelling carriage of its preservation to carry out hand-off process comprises:
Base station system is carried out switch decision according to the up quality of reception of the measurement report of the predetermined number two of its reception, base station system is after switch decision passes through, neighboring BS information in the complete measurement report of this travelling carriage of its preservation as the Target cell that switches, and is carried out and switched.
The present invention also provides the switching device shifter in a kind of wireless communication system, is provided with memory module and handover module in the described device;
Memory module is used for: the information of last of storing mobile station or last a plurality of complete measurement report; Handover module is used for: receive the incomplete measurement report of travelling carriage in base station system after, obtain the information in the complete measurement report of this travelling carriage from memory module, utilize this information to carry out hand-off process; Described incomplete measurement report is to lack to carry out the measurement report that needs the information used in the handoff procedure.
Canned data comprises in the described memory module: down-run survey result, and described incomplete measurement report is: comprise the out-hole run result but lack down-run survey result's measurement report.
Described handover module comprises: condition detection sub-module and switch decision submodule;
The condition detection sub-module is used for: after handover module receives incomplete measurement report, judge that whether the predetermined condition of utilizing imperfect measurement report to carry out switch decision satisfies, if satisfy, then notifies the switch decision submodule, if do not satisfy, do not carry out notifier processes;
The switch decision submodule is used for: after the notice that receives the condition detection sub-module, obtain the information in the complete measurement report of this travelling carriage from memory module, and utilize this information to carry out hand-off process.
Described switch decision submodule comprises: sub-module is selected in switch decision sub-module and adjacent area;
The switch decision sub-module is used for: the up quality of reception according to the measurement report of the predetermined number two of current reception is carried out switch decision, and switch decision by the time, the notice switching submodule;
Switching submodule is used for: after the notice that receives the switch decision submodule, from memory module, obtain the neighboring BS information in the complete measurement report of travelling carriage, and the Target cell that this neighboring BS information is switched as this travelling carriage, and carry out and switch.
Description by technique scheme as can be known, base station system among the present invention is by the information in the complete measurement report of preserving travelling carriage, make base station system when receiving the incomplete measurement report of travelling carriage, can utilize the information in the complete measurement report of this travelling carriage of its storage to carry out hand-off process, avoid owing to not comprising the phenomenon that can not initiate to switch that neighboring BS information etc. causes in the measurement report; The present invention utilizes imperfect measurement report to carry out the predetermined condition of hand-off process by being provided with, and has effectively avoided unnecessary handoff process, has guaranteed handover success rate; Carry out switch decision by the up quality of reception of utilizing current measurement report, when travelling carriage is lost owing to the up descender that causes the measurement report of travelling carriage of poor quality, base station system can in time initiate switching flow, thus kept as much as possible the continuity of conversation, as much as possible guaranteed the user speech quality, and further prevented the generation of call drop phenomenon; Thereby realized improving the purpose of travelling carriage speech quality, raising user satisfaction by technical scheme provided by the invention.
Description of drawings
Fig. 1 is the changing method flow chart of the embodiment of the invention.
Embodiment
, travelling carriage relatively poor at wireless environment is subjected under the situations such as bursty interference, incomplete situation can appear in the measurement report that base station system receives, imperfect etc. as the descender in the measurement report, at this moment, if base station system can be under the incomplete situation of the measurement report of travelling carriage, in time initiate as much as possible to switch, then can effectively avoid the phenomenon of deterioration of travelling carriage speech quality even travelling carriage call drop.
Therefore, the main contents of technical scheme provided by the invention are: base station system is when receiving complete measurement report, except according to present technical scheme, this complete measurement report is carried out outside the normal handling, also should preserve the information in this complete measurement report.Like this, base station system is after receiving incomplete measurement report, if base station system can not normally be finished handoff procedure according to this incomplete measurement report, then base station system can utilize the information in the complete measurement report of this travelling carriage of its preservation to carry out hand-off process.
Below technical scheme provided by the invention is described in detail.
At first, the base station system among the present invention should be according to present technical scheme when receiving complete measurement report, this complete measurement report is carried out normal handling, as hand-off process etc., and base station system also needs to preserve the information in this complete measurement report.
Here, the base station system canned data is: base station system needs the information used in that travelling carriage is carried out in the handoff procedure, as comprises the down-run survey result etc. of neighboring BS information.In handoff procedure, neighboring BS information is obtained by moving table measuring, and neighboring BS information is that the measurement report by travelling carriage is reported to the base station system place.
Information in the measurement report of travelling carriage comprises: information such as the incoming level of the incoming level of Serving cell, the quality of reception, TA information and adjacent area, frequency point information, BSIC.If the measurement report that base station system receives lacks descender, then meaning does not have neighboring BS information in the measurement report, and according to present changing method, the switching meeting is owing to lack Target cell, and can't initiate to switch.
Among the present invention during the information of base station system in storage perfect measurement report, can adopt the mode of updated stored to realize, be that mode that base station system adopt to cover storage is stored the information in its up-to-date complete measurement report that receives, that is to say, base station system is only preserved the information in last or the last a plurality of complete measurement report of current this travelling carriage that receives, and the information that the information in all the other measurement reports of this travelling carriage is moved in the current measurement report of platform has covered.
After the information in having preserved the complete measurement report of this travelling carriage, base station system is after receiving the incomplete measurement report of travelling carriage, information in the complete measurement report of its storage need be used for handoff procedure, to remedy in the handoff procedure information that lacks in the incomplete measurement report; As base station system the neighboring BS information among the down-run survey result of its storage is recovered out, and with this neighboring BS information that recovers out as the Target cell in the handoff procedure.
When the descender of measurement report is imperfect, base station system is carried out in the handoff process according to this incomplete measurement report, its canned data that uses such as neighboring BS information etc., be that travelling carriage reported in the past in a period of time, like this, just travelling carriage might be switched to the worse sub-district of signal quality, thereby influence the travelling carriage success rate for switching.
For fear of base station system when switching according to incomplete measurement report, influence to the travelling carriage handover success rate is excessive, the present invention is provided with and utilizes imperfect measurement report to carry out the predetermined condition of hand-off process, when base station system when switching according to incomplete measurement report, base station system need judge whether above-mentioned predetermined condition satisfies, if base station system is determined this predetermined condition and satisfied, then can carry out hand-off process according to the information in the complete measurement report of incomplete measurement report and its storage; If base station system is determined this predetermined condition and is not satisfied, then do not carry out hand-off process, to avoid that travelling carriage is switched to the worse sub-district of signal quality.
The predetermined condition that is provided with in the above-mentioned base station system can for: the number of not having the measurement report of downlink information continuously is no more than predetermined number one.That is to say that the present invention limits the number of the incomplete measurement report that base station system receives continuously, as the number of the measurement report of the no descender that receives continuously of restriction base station system.Base station system is no more than predetermined number for the moment in the number of determining its incomplete measurement report that receives continuously, can carry out the hand-off process of this travelling carriage according to the information in the perfect measurement report of incomplete measurement report and its storage.Base station system surpasses predetermined number for the moment in the number of determining its incomplete measurement report that receives continuously, then forbid this travelling carriage is carried out hand-off process, receive the complete measurement report of this travelling carriage up to base station system, base station system is just carried out hand-off process according to the current complete measurement report that receives.
Because factors such as the up-link wireless environment of travelling carriage is abominable can make the measurement report of travelling carriage imperfect equally, that is to say that the up-link wireless environment can cause the descender of the measurement report of travelling carriage to be lost, under this situation, if base station system is not carried out hand-off process, cause call drop probably.Can in time initiate handoff process in this case in order to make base station system, base station system of the present invention can be with the up quality of reception of two measurement reports of predetermined number of the receiving foundation as switch decision, as base station system when the average of the up quality of reception of the measurement report of the predetermined number two of determining its reception is lower than predetermined value, switch decision passes through, base station system is switched the neighboring BS information in the perfect measurement report of its storage as this travelling carriage Target cell, and carry out switching; When base station system was not less than predetermined value in the average of the up quality of reception of two measurement reports of predetermined number of determining its reception, switch decision did not pass through, and base station system is not carried out switching.
Certainly, base station system also can adopt additive method to calculate the up quality of reception, and carries out switch decision.Predetermined number two can be according to the concrete condition flexible configuration of base station system.
When base station system with the up quality of reception of the measurement report of predetermined number two as switch decision according to the time, during the information of base station system of the present invention in the complete measurement report of preserving travelling carriage, need to preserve the out-hole run object information in the measurement report.Like this, base station system can obtain the time up qualities of reception nearest, two measurement reports of predetermined number easily.
Though base station system is stored the out-hole run result in the complete measurement report, but, may only comprise in the up quality of reception as two measurement reports of predetermined number of switch decision: the up quality of reception of the incomplete measurement report that base station system receives continuously.Also may comprise simultaneously in the up quality of reception of two measurement reports of predetermined number: the up quality of reception of the complete measurement report of the up quality of reception of the incomplete measurement report that base station system receives continuously and base station system storage.
Whether comprise complete measurement report in two measurement reports of predetermined number, should decide according to the number of the incomplete measurement report of the setting of predetermined number two and the current continuous reception of base station system, promptly when the number of the incomplete measurement report of the current continuous reception of base station system surpasses predetermined number two, the complete measurement report that does not comprise the base station system storage in two measurement reports of predetermined number, when the number of the incomplete measurement report of the current continuous reception of base station system is no more than predetermined number two, comprise the complete measurement report of base station system storage in two measurement reports of predetermined number.
The present invention makes base station system in time carry out hand-off process where necessary by with the foundation of the up quality of reception as switch decision.When predetermined number two when being a plurality of, the present invention has effectively avoided the burst factor to the influence of the up quality of reception and cause base station system to carry out unnecessary handoff process.
Certainly, switch decision process in the hand-off process of the present invention can adopt the switch decision algorithm in the prior art scheme, when promptly the switch decision algorithm in utilizing the prior art scheme determines that judgement is passed through, base station system is switched the neighboring BS information in the perfect measurement report of its storage as this travelling carriage Target cell, and carry out switching; Base station system is determining that judgement is obstructed out-of-date, and base station system is not carried out switching.
Be elaborated below in conjunction with 1 pair of changing method provided by the invention of accompanying drawing.
Among Fig. 1, in step 100, base station system receives measurement report.
To step 110, whether base station system is adjudicated its this measurement report that receives is complete measurement report, be that base station system judges whether its this measurement report that receives is the complete measurement report of descender, if complete measurement report, to step 160, base station system is carried out normal hand-off process to this complete measurement report, base station system is when carrying out normal hand-off process to this complete measurement report, also need to store the information in this complete measurement report, as descending measurement result, out-hole run result etc.This handoff process finishes, and the count value that base station system will receive incomplete measurement report number continuously resets.
In step 110, if when base station system is judged its this measurement report that receives and is the incomplete measurement report of descender, to step 120, base station system is counted for the number of its incomplete measurement report that receives continuously.
To step 130, base station system judges whether the number of the incomplete measurement report that it receives surpasses predetermined number one, if determine to be no more than predetermined number one, to step 140, base station system judges whether the average of the up quality of reception of measurement report of travelling carriage of the predetermined number two of its reception is lower than predetermined value, if determine to be lower than predetermined value, to step 150, base station system is obtained the neighboring BS information in the complete measurement report of its storage, and with the Target cell of this neighboring BS information as switching, base station system is carried out and is switched.This handoff process finishes, and the count value that base station system will receive incomplete measurement report number continuously resets.
In step 140, if base station system is judged the average of the up quality of reception of measurement report of travelling carriage of the predetermined number two of its reception and is not less than predetermined value, to step 170, base station system is not carried out the hand-off process of this travelling carriage, and this handoff process finishes.
In step 130, if judging the number of the incomplete measurement report that receives, base station system surpasses predetermined number one, then arrive step 170, base station system is not carried out the hand-off process of this travelling carriage, and this handoff process finishes.
Switching device shifter provided by the invention comprises: memory module and handover module.
Memory module is mainly used in: when base station system receives the complete measurement report of travelling carriage, store the information in this complete measurement report, as comprise down-run survey result, out-hole run result of neighboring BS information etc.Memory module can adopt the mode of updated stored to come information in the complete measurement report of storing mobile station, only preserve information in one of this nearest travelling carriage of the current time that receives or a plurality of complete measurement report as memory module, the information in all the other measurement reports of this travelling carriage has been covered by the information in the measurement report of current mobile station.
Handover module is mainly used in: receive the incomplete measurement report of travelling carriage in base station system after, obtain the information in the complete measurement report of this travelling carriage from memory module, and utilize the information in this complete measurement report to carry out hand-off process.
Handover module can carry out hand-off process according to the information in the complete measurement report of storing in the memory module under predetermined condition.Handover module is made up of condition detection sub-module and switching submodule.
The condition detection sub-module is mainly used in: receive the incomplete measurement report of travelling carriage at handover module after, judge that whether the predetermined condition of utilizing imperfect measurement report to carry out switch decision satisfies, if satisfy, then notifies handover module, if do not satisfy, do not carry out notifier processes.The predetermined condition here can for: the number of not having the measurement report of downlink information continuously is no more than predetermined number first-class.Concrete as the description in the above-mentioned method.
Switching submodule is mainly used in: after the notice that receives the condition detection sub-module, information from memory module in the complete measurement report of nearest this travelling carriage of acquisition time, as obtain the down-run survey result, descending for another example measurement result and out-hole run object information, and utilize the information in this complete measurement report to carry out hand-off process.
Switching submodule is made up of switch decision sub-module and switching sub-module.
The switch decision sub-module is mainly used in: when the average of the up quality of reception of determining two measurement reports of predetermined number that base station system receives is lower than predetermined value, switch decision passes through, and notice switching submodule, when the average of the up quality of reception of determining two measurement reports of predetermined number that base station system receives is not less than predetermined value, the switching sub-module is not notified in the switch decision failure.
The up quality of reception of two measurement reports of predetermined number here can comprise: the up quality of reception of the complete measurement report of storing in the up quality of reception of the incomplete measurement report of current continuous reception and the memory module.Whether comprise complete measurement report in two measurement reports of predetermined number, should decide according to the number of the incomplete measurement report of the setting of predetermined number two and the current continuous reception of base station system, promptly when the number of the incomplete measurement report of the current continuous reception of base station system surpasses predetermined number two, the complete measurement report that does not comprise the base station system storage in two measurement reports of predetermined number, when the number of the incomplete measurement report of the current continuous reception of base station system is no more than predetermined number two, comprise the complete measurement report of base station system storage in two measurement reports of predetermined number.Concrete as the description in the above-mentioned method.
Switching sub-module is mainly used in: after the notice that receives the switch decision submodule, from memory module, obtain the neighboring BS information in the nearest complete measurement report of time of this travelling carriage, with the Target cell of this neighboring BS information, and carry out switching as this travelling carriage switching.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, and the claim of application documents of the present invention comprises these distortion and variation.
Claims (10)
1, a kind of changing method is characterized in that, described method comprises step:
A, base station system preserve the information in last or the last a plurality of complete measurement report of travelling carriage;
B, base station system utilize the information in the historical complete measurement report of this travelling carriage of its preservation to carry out hand-off process after receiving the incomplete measurement report of travelling carriage; Described incomplete measurement report is to lack to carry out the measurement report that needs the information used in the handoff procedure.
2, the method for claim 1, it is characterized in that, the base station system canned data comprises among the described step a: down-run survey result, and incomplete measurement report is among the described step b: comprise the out-hole run result but lack down-run survey result's measurement report.
3, method as claimed in claim 1 or 2 is characterized in that, described step b comprises:
Base station system is at the incomplete measurement report that receives travelling carriage and when determining that the predetermined condition of utilizing imperfect measurement report to carry out hand-off process satisfies, and utilizes the information in the complete measurement report of this travelling carriage of its preservation to carry out hand-off process.
4, method as claimed in claim 3 is characterized in that, described predetermined condition is: the number of not having the measurement report of downlink information continuously is no more than predetermined number one, and described step b comprises:
Base station system is no more than predetermined number for the moment in the number of the measurement report of the continuous no downlink information of determining travelling carriage, utilizes the information in the complete measurement report of this travelling carriage of its preservation to carry out hand-off process.
5, method as claimed in claim 3 is characterized in that, described method also comprises:
Base station system is at the incomplete measurement report that receives travelling carriage and when determining that described predetermined condition does not satisfy, do not carry out hand-off process, up to the complete measurement report that receives this travelling carriage, base station system is just carried out hand-off process according to the current complete measurement report that receives.
6, method as claimed in claim 1 or 2, it is characterized in that, the base station system canned data also comprises among the described step a: the out-hole run result, and the step that described step b utilizes information in the complete measurement report of this travelling carriage of its preservation to carry out hand-off process comprises:
Base station system is carried out switch decision according to the up quality of reception of the measurement report of the predetermined number two of its reception, base station system is after switch decision passes through, neighboring BS information in the complete measurement report of this travelling carriage of its preservation as the Target cell that switches, and is carried out and switched.
7, a kind of switching device shifter is characterized in that, is provided with memory module and handover module in the described device;
Memory module is used for: the information of last of storing mobile station or last a plurality of complete measurement report;
Handover module is used for: receive the incomplete measurement report of travelling carriage in base station system after, obtain the information in the complete measurement report of this travelling carriage from memory module, utilize this information to carry out hand-off process; Described incomplete measurement report is to lack to carry out the measurement report that needs the information used in the handoff procedure.
8, a kind of switching device shifter as claimed in claim 7 is characterized in that canned data comprises in the memory module: down-run survey result, and described incomplete measurement report is: comprise the out-hole run result but lack down-run survey result's measurement report.
9, as claim 7 or 8 described a kind of switching device shifters, it is characterized in that described handover module comprises: condition detection sub-module and switch decision submodule;
The condition detection sub-module is used for: after handover module receives incomplete measurement report, judge that whether the predetermined condition of utilizing imperfect measurement report to carry out switch decision satisfies, if satisfy, then notifies the switch decision submodule, if do not satisfy, do not carry out notifier processes;
The switch decision submodule is used for: after the notice that receives the condition detection sub-module, obtain the information in the complete measurement report of this travelling carriage from memory module, and utilize this information to carry out hand-off process.
10, a kind of switching device shifter as claimed in claim 9 is characterized in that, described switch decision submodule comprises: sub-module is selected in switch decision sub-module and adjacent area;
The switch decision sub-module is used for: the up quality of reception according to the measurement report of the predetermined number two of current reception is carried out switch decision, and switch decision by the time, the notice switching submodule;
Switching submodule is used for: after the notice that receives the switch decision submodule, from memory module, obtain the neighboring BS information in the complete measurement report of travelling carriage, and the Target cell that this neighboring BS information is switched as this travelling carriage, and carry out and switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100723082A CN100442936C (en) | 2006-04-12 | 2006-04-12 | Method and device for switching in wireless telecommunication system |
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| CNB2006100723082A CN100442936C (en) | 2006-04-12 | 2006-04-12 | Method and device for switching in wireless telecommunication system |
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| CN100442936C true CN100442936C (en) | 2008-12-10 |
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| CNB2006100723082A Expired - Fee Related CN100442936C (en) | 2006-04-12 | 2006-04-12 | Method and device for switching in wireless telecommunication system |
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| CN101572919B (en) * | 2008-05-04 | 2012-05-23 | 华为技术有限公司 | Method for carrying out switching strategy selection for user equipment (UE) in LTE system |
| CN102076011A (en) * | 2011-01-18 | 2011-05-25 | 大唐移动通信设备有限公司 | Measurement information acquiring method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1286580A (en) * | 1999-08-31 | 2001-03-07 | 朗迅科技公司 | Handoff system of cellular radio communication |
| GB2395398A (en) * | 2002-11-07 | 2004-05-19 | Motorola Inc | A communication unit and method of communicating measurement reports therefor |
| CN1520078A (en) * | 2003-01-22 | 2004-08-11 | 华为技术有限公司 | Method for adjusting soft switching threshold |
| US20040248568A1 (en) * | 2003-02-18 | 2004-12-09 | Nortel Networks Limited. | Method of controlling a mode of reporting of measurements on a radio interface and radio network controller for the implementation of the method |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1286580A (en) * | 1999-08-31 | 2001-03-07 | 朗迅科技公司 | Handoff system of cellular radio communication |
| GB2395398A (en) * | 2002-11-07 | 2004-05-19 | Motorola Inc | A communication unit and method of communicating measurement reports therefor |
| CN1520078A (en) * | 2003-01-22 | 2004-08-11 | 华为技术有限公司 | Method for adjusting soft switching threshold |
| US20040248568A1 (en) * | 2003-02-18 | 2004-12-09 | Nortel Networks Limited. | Method of controlling a mode of reporting of measurements on a radio interface and radio network controller for the implementation of the method |
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| CN1984458A (en) | 2007-06-20 |
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