CN1984446A - Method for saving resource of soft-switch residence - Google Patents
Method for saving resource of soft-switch residence Download PDFInfo
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- CN1984446A CN1984446A CNA2006100608243A CN200610060824A CN1984446A CN 1984446 A CN1984446 A CN 1984446A CN A2006100608243 A CNA2006100608243 A CN A2006100608243A CN 200610060824 A CN200610060824 A CN 200610060824A CN 1984446 A CN1984446 A CN 1984446A
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Abstract
The method comprises: UE monitors the quality of cell where the user locates at; for the user who is going to enter the soft switch, UE reports it to RNC by using event report; after receiving the measurement report of soft switch to be made by user, according to the event type information and cell quality measurement value decision, RNC decides if the soft switch is capable of being made; if yes, then checking the rate of user; if uplink or downlink rate exceeds the guarantee rate appointed by core network; then making rate reduction and bandwidth adjustment; after reduction of rate and the adjustment of bandwidth is completed, making the soft switch.
Description
Technical field
The present invention relates to cell mobile communication systems, relate in particular to soft hand-off in the cell mobile communication systems.
Background technology
In existing cell mobile communication systems,, make that the radio-frequency power of base station is confined within certain scope (sub-district) in the system for the utilance that improves frequency spectrum resource and the capacity of whole system.Enter the another one sub-district when UE (subscriber equipment) leaves a sub-district, the signal of the original sub-district that it is received inevitable more and more a little less than, and its received signal that enters the sub-district will be more and more stronger just also.In order to keep the communication quality of UE, must switch to the stronger base station of signal that newly enters by original base station to continuing of this UE, the notion of switching in Here it is the cell mobile communication systems.
In the handoff techniques of mobile communication, the branch of direct-cut operation and soft handover is arranged.Direct-cut operation is meant that UE interrupts earlier the contact with former NodeB (base station), is connected with new NodeB again, and said process is easy to generate call drop.Soft handover, the busy UE of making of NodeB traffic that is moved or communicates by letter with UE at present as UE is meant when need communicate by letter with a new NodeB, elder generation's interruption and former NodeB's gets in touch, but earlier and after new NodeB is connected, interruption and former NodeB's gets in touch again, this is code division multiple access (CodeDivision Multiple Access is called for short " the CDMA ") technology of classics.Above-mentioned soft hand-off has raising speech quality, reduces advantages such as call drop.
Though soft handover has above-mentioned advantage, its shortcoming also is conspicuous, and promptly the user can take many parts of resources simultaneously when being in soft changing state, comprises the transmission power resources and the defeated bandwidth resources of IUB oral instructions of eating dishes without rice or wine.Networking initial stage particularly, operator adopt rent the IUB transfer resource or with the form of the shared IUB transfer resource in existing 2G base station, therefore, the defeated resource of IUB oral instructions seems especially valuable.We wish and can save communication resources as far as possible under the situation that guarantees communication quality, thereby save the networking cost.
The present intrasystem speech coding of 3G, all adopt AMR (Adaptive Multi-Rate) encoding scheme, the AMR audio coder ﹠ decoder (codec) is supported 8 provenance rate mode: 12.2kbps (GSM-EFR) altogether, 10.2kbps, 7.95kbps, 7.40kbps (IS-641), 6.70kbps (PDC-EFR), 5.90kbps, 5.15kbps, 4.75kbps.Test can draw, and the AMR voice rate is high more, and transfer resource takies high more, and the transmitting power of up-downgoing is also high more; Speed is low more, and transfer resource takies low more, and the transmitting power of up-downgoing is also low more.
At present the typical soft handoff procedure that moves to another sub-district from a sub-district for UE as shown in Figure 1: UE 1 moves to sub-district 2 from the sub-district, after entering soft handover area, at first RNC (radio network controller) receives that the measurement report of UE is (as the 1A event report, triggering cell is sub-district 2, expression sub-district 2 quality are higher than a relative threshold, can add active set); RNC is advanced, and the hand-manipulating of needle is set up process to the Radio Link of sub-district 2; Issue the active set updating message after finishing and give UE, the indication soft handover increases sub-district 2, and UE returns the active set renewal and finishes, and finish the sub-district 2 of soft handover increase so far, and the user is in soft changing state.Switch schematic diagram as shown in Figure 2.
Under above-mentioned soft changing state, UE is linked in two sub-districts simultaneously, takies two parts of resources simultaneously, is bigger to the consumption of resource.
Summary of the invention
In order to solve the above-mentioned defective of prior art, reduce the user rate under the soft changing state, save the eat dishes without rice or wine through-put power and the defeated bandwidth of IUB oral instructions of soft switching subzone, the invention provides a kind of method of saving resource of soft-switch residence.Its main thought is: at the user who is in soft handover, its up-downgoing speed is reduced to assurance speed, under the prerequisite that satisfies QoS (quality of service), saves the related resource of sub-district.This method may further comprise the steps:
A, the residing cell quality of UE monitor user ', for the user who is about to enter soft handover, the mode by event report reports RNC.
After B, RNC receive described report, judge whether to do soft handover according to event type information in the measurement report and cell quality measured value, if can, then check user's speed, if have upstream or downstream speed to surpass the assurance speed of core net assignment, preferentially carry out reduction of speed rate and bandwidth adjustment and handle;
After C, reduction of speed rate and bandwidth adjustment are finished, carry out soft handover.
In described steps A, when setting up customer service, the configuration soft handoff event is measured control.When the user is about to enter soft handover area, can be in time with information by the mode of the measurement report RNC that reports for work.
In described step B, soft handover will take place 2 minizones in UE when judgement, judge then whether current up-downgoing speed is to guarantee speed, if not guaranteeing speed, then initiates the speed adjustment process on the respective direction, and speed is reduced to assurance speed.
If the reduction upstream rate, handling process as shown in Figure 3:
For the user that will switch, the up assurance speed of RNC basis, configuration TFC Subset (TransportFormat Combination Subset transport format combination subset), assembling UL TFC Control (control of UpLinkTransport Format Combination Control uplink format combination) message, send to UE, and start a timer, monitor this message.If before this timer is not overtime, received the failed message that UE returns, then shut-down operation.If overtime, think that then message sends successfully.According to current available AMR TFS Subset (Adaptive Multi-Rate Transport Format Set Subset adaptive multi-rate TFS Transport Format Set subclass) information, recomputate bandwidth again with collocating uplink Iub, and notice NodeB.
If the reduction downstream rate, handling process as shown in Figure 4:
For the user that will switch, RNC is according to descending guarantee speed, configuration RFCI (RAB sub-FlowCombination Indicator, Rab stream combination indication), assembling IUUP Rate Control (Iu UserPlane Rate Control Iu mouth user face rate controlled) message, send to CN (core net), by the time behind the successful response message, again according to current available AMR TFS Subset (Adaptive Multi-RateTransport Format Set Subset adaptive multi-rate TFS Transport Format Set subclass) information, recomputate bandwidth with configurating downlink Iub, and notice NodeB.
Describedly recomputate with configurating downlink Iub bandwidth and notify NodeB to be: RNC calculates required bandwidth according to current business speed, and issues NodeB by QAAL2 MODIFY MESSAGE.
Because this method reduced user's speed in advance before the user is carried out soft handover, thus after entering the switch area, reduction of speed situation more not, the bandwidth of having saved the IUB mouth has also been saved the transmission transmitting power on eating dishes without rice or wine.
Description of drawings
Fig. 1 is typical soft handoff procedure;
Fig. 2 is the soft handover schematic diagram;
Fig. 3 is for reducing user uplink speed flow process;
Fig. 4 is for reducing user's downstream rate flow process.
Embodiment
For make purpose of the present invention, technical scheme, and advantage clearer, below by specific embodiment, in conjunction with the accompanying drawings, the present invention is described in more detail.
First embodiment:
The user has set up an AMR speech business in sub-district 1, the upstream rate of the current use of this business is 12.2K, and downstream rate is 4.75K, and up-downgoing guarantees that speed is 4.75K.The user 1 moves to sub-district 2 directions from the sub-district then, enters soft handover area.
This method is handled as shown in Figure 3, and step is as follows:
Step 1, user hold the residing cell quality of UE monitor user ', and report the 1A measurement report to give RNC.
After step 2, RNC receive that the user will carry out the measurement report of soft handover, judge and sub-district 2 can be added active set according to event type information in the measurement report and cell quality measured value.
Step 3, RNC check current upstream rate, confirm that current upstream rate is greater than up assurance speed.The up assurance speed of RNC, configuring transmission format combination subclass TFC Subset, assembling UL TFCControl (UpLink Transport Format Combination Control) message sends to UE, and starts a timer, monitors this message.
Step 4, timer expiry and do not receive the failed message that UE returns, RNC is according to current available adaptive multi-rate TFS Transport Format Set subclass AMR TFS Subset information, recomputate bandwidth, and issue NodeB by QAAL2 MODIFY MESSAGE with collocating uplink Iub.
After step 5, reduction of speed rate and bandwidth adjustment are finished, carry out soft handover.
Second embodiment:
The user has set up an AMR speech business in sub-district 1, the upstream rate of the current use of this business is 4.75, and downstream rate is 12.2K, and up-downgoing guarantees that speed is 4.75K.The user 1 moves to sub-district 2 directions from the sub-district then, enters soft handover area.
This method is handled as shown in Figure 4, and step is as follows:
Step 1, user hold the residing cell quality of UE monitor user ', and report the 1A measurement report to give RNC.
After step 2, RNC receive that the user will carry out the measurement report of soft handover, judge and sub-district 2 can be added active set according to event type information in the measurement report and cell quality measured value.
Step 3, RNC are according to descending guarantee speed, and configuration Rab stream combination indication RFCI assembles Iu mouth user face rate controlled IUUP Rate Control message, sends to core net CN.
After step 4, RNC receive the response message of CN success, according to current available adaptive multi-rate TFS Transport Format Set subclass AMR TFS Subset information, recomputate bandwidth, and issue NodeB again by QAAL2 MODIFY MESSAGE with configurating downlink Iub.
After step 5, reduction of speed rate and bandwidth adjustment are finished, carry out soft handover.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (6)
1, a kind of method of saving resource of soft-switch residence is characterized in that, this method may further comprise the steps:
A, the residing cell quality of UE monitor user ', and will be about to enter the user report of soft handover to RNC;
B, RNC judge whether to do soft handover according to described report; If can, then check user rate,
If have upstream or downstream speed to surpass the assurance speed of core net assignment, then carry out reduction of speed rate and bandwidth adjustment and handle;
After C, reduction of speed rate and bandwidth adjustment are finished, carry out soft handover.
2, the method for a kind of saving resource of soft-switch residence according to claim 1, it is characterized in that: before steps A, further comprise: when setting up customer service, the configuration soft handoff event is measured control, when the user was about to enter soft handover area, UE can be in time reports RNC with the mode of information by measurement report.
3, the method for a kind of saving resource of soft-switch residence of stating according to claim 2 is characterized in that: report described in the step B comprises event type information and cell quality measured value.
4, the method for a kind of saving resource of soft-switch residence according to claim 1 is characterized in that: in described step B, guarantee speed if user's upstream rate surpasses, then this step further comprises:
B1:RNC is according to up assurance speed, and configuring transmission format combination subclass TFC Subset assembles uplink format combination control UL TFC Control message, sends to UE, and starts a timer, monitors this message;
B2: if before this timer is not overtime, received the failed message that UE returns, then shut-down operation; Otherwise, according to current available adaptive multi-rate TFS Transport Format Set subclass AMR TFS Subset information, recomputate bandwidth again with collocating uplink Iub, and notice NodeB.
5, the method for a kind of saving resource of soft-switch residence according to claim 1 is characterized in that: in described step B, guarantee speed if user's downstream rate surpasses, then this step further comprises:
B1:RNC is according to descending guarantee speed, and configuration Rab stream combination indication RFCI assembles Iu mouth user face rate controlled I UUP Rate Control message, sends to core net;
After B2:RNC receives the response message of core net success, according to current available adaptive multi-rate TFS Transport Format Set subclass AMR TFS Subset information, recomputate bandwidth again with configurating downlink Iub, and notice NodeB.
6, according to the method for claim 4 or 5 described a kind of saving resource of soft-switch residence, it is characterized in that:
Recomputate with configurating downlink Iub bandwidth described in the step B2 and notify NodeB to be: RNC calculates required bandwidth according to current business speed, and issues NodeB by QAAL2 MODIFY MESSAGE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100608243A CN100471327C (en) | 2006-05-17 | 2006-05-17 | Method for saving resource of soft-switch residence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100608243A CN100471327C (en) | 2006-05-17 | 2006-05-17 | Method for saving resource of soft-switch residence |
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| Publication Number | Publication Date |
|---|---|
| CN1984446A true CN1984446A (en) | 2007-06-20 |
| CN100471327C CN100471327C (en) | 2009-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100608243A Expired - Fee Related CN100471327C (en) | 2006-05-17 | 2006-05-17 | Method for saving resource of soft-switch residence |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102655425A (en) * | 2011-03-02 | 2012-09-05 | 爱立信(中国)通信有限公司 | Method and base station for regulating and controlling upstream load change caused by changing wave beam direction |
| CN101827014B (en) * | 2009-03-03 | 2013-08-14 | 华为技术有限公司 | Method for controlling switch among networks, gateway server and communication network |
| WO2013166698A1 (en) * | 2012-05-11 | 2013-11-14 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for energy saving |
| CN104126321A (en) * | 2012-03-26 | 2014-10-29 | 诺基亚公司 | Adaptation of mobility parameters based on user equipment measurement availability |
-
2006
- 2006-05-17 CN CNB2006100608243A patent/CN100471327C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101827014B (en) * | 2009-03-03 | 2013-08-14 | 华为技术有限公司 | Method for controlling switch among networks, gateway server and communication network |
| CN102655425A (en) * | 2011-03-02 | 2012-09-05 | 爱立信(中国)通信有限公司 | Method and base station for regulating and controlling upstream load change caused by changing wave beam direction |
| WO2012116584A1 (en) * | 2011-03-02 | 2012-09-07 | Ericsson (China) Communications Co., Ltd. | Method and base station of adjusting uplink load variance due to uplink beam direction change |
| CN102655425B (en) * | 2011-03-02 | 2014-12-10 | 爱立信(中国)通信有限公司 | Method and base station for regulating and controlling upstream load change caused by changing wave beam direction |
| US9585055B2 (en) | 2011-03-02 | 2017-02-28 | Telefonaktiebolaget L M Ericsson | Method and base station of adjusting uplink load variance due to uplink beam direction change |
| CN104126321A (en) * | 2012-03-26 | 2014-10-29 | 诺基亚公司 | Adaptation of mobility parameters based on user equipment measurement availability |
| CN104126321B (en) * | 2012-03-26 | 2018-06-01 | 诺基亚技术有限公司 | Based on user equipment measurement availability adaptation mobility parameters |
| WO2013166698A1 (en) * | 2012-05-11 | 2013-11-14 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for energy saving |
| US9503973B2 (en) | 2012-05-11 | 2016-11-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for energy saving |
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| Publication number | Publication date |
|---|---|
| CN100471327C (en) | 2009-03-18 |
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