CN102196488A - Carrier switching method - Google Patents
Carrier switching method Download PDFInfo
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- CN102196488A CN102196488A CN2010101158207A CN201010115820A CN102196488A CN 102196488 A CN102196488 A CN 102196488A CN 2010101158207 A CN2010101158207 A CN 2010101158207A CN 201010115820 A CN201010115820 A CN 201010115820A CN 102196488 A CN102196488 A CN 102196488A
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- efach
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- rnc
- carrier wave
- measurement result
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Abstract
The invention discloses a carrier switching method, which comprises that: a radio network controller (RNC) informs a base station (NodeB) of measuring the block error rate (BLER) of a high speed downlink shared channel (HSDSCH) or an enhanced dedicated channel (EDCH); the base station measures the BLER of the HSDSCH or the EDCH according to the informing, and reports a measurement result to the RNC; the RCN judges whether the measurement result is greater than a corresponding preset threshold value or not, and if the measurement result is judged to be greater than the corresponding preset threshold value, determines a switched target enhanced forward access channel (EFACH) carrier for an EFACH user and informs the EFACH user of switching to the target EFACH carrier; and the EFACH user is switched to the target EFACH carrier according to the informing. By the carrier switching method, the overhead of air-interface resources can be effectively saved, and the effectiveness of carrier switching is improved.
Description
Technical field
The present invention relates to the carrier wave handoff technique in the mobile communication system, particularly relate to carrier wave changing method at EFACH user.
Background technology
At present, as EFACH user during in the FACH attitude, the handoff procedure of its carrier wave is normally finished based on user's traffic carrying capacity triggering, promptly, the measurement of carrying out traffic carrying capacity by base station notifying user equipment (UE) with report, judge whether that according to the traffic carrying capacity that UE reported needs carry out the switching of carrier wave by the base station more afterwards, and notice UE carries out the switching of carrier wave when judgement needs.
Because in the said method, UE need report the base station with measured result according to default mode (mode of periodic report or reporting events), and is therefore, bigger aspect the expense of interface-free resources.
And, because the accuracy of the measurement result that the base station obtained is subject to the channel circumstance quality of interface-free resources, and compare with other wire transmission media, the channel circumstance complexity of eating dishes without rice or wine in actual applications, channel quality is subjected to disturb, The noise is bigger, therefore, the validity of the carrier wave switching judging of carrying out according to this measurement result also can be subjected to the considerable influence of channel circumstance quality.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of carrier method.This method can realize that EFACH user's carrier wave switches, and, can effectively save the expense of interface-free resources, guarantee the quality that carrier wave switches.
In order to achieve the above object, the technical scheme of the present invention's proposition is:
A kind of carrier wave changing method, this method may further comprise the steps:
A, radio network controller (RNC) informing base station (NodeB) are measured EFACH user's high-speed downlink shared channel (HSDSCH) or are strengthened the bLock error rate (BLER) of dedicated channel (EDCH);
B, described base station measure the BLER of described HSDSCH or EDCH according to described notice, and described measurement result is reported described RNC;
Whether c, described RNC judge described measurement result greater than the corresponding preset threshold value, if then be the target EFACH carrier wave that described EFACH user determines switching, and notify described EFACH user to switch on the described target EFACH carrier wave;
D, described EFACH user switch on the described target EFACH carrier wave according to described notice.
In sum, in the carrier wave changing method that the present invention proposes, by the signal quality of RNC, judge whether to carry out intercarrier and switch, so according to the EFACH user's of place, base station measurement HSPA scheduling resource, can save the expense of the needed interface-free resources of UE reporting measurement result in the existing handover scheme, and owing to be the transmission of carrying out data by optical fiber between RNC and the base station, for the transmission of eating dishes without rice or wine, the reliability height of transmission, therefore, can guarantee the quality that carrier wave switches.
Description of drawings
Fig. 1 is the flow chart of the embodiment of the invention one.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.
The downward evolution version (HSPA+) that inserts along with high-speed packet is as a kind of introducing that is used to strengthen the technology of up-downgoing ability, be in FACH attitude user and can use high-speed packet access (HSPA) scheduling resource to improve data rate, reduce signaling delay, improve its user experience.
Based on this, core concept of the present invention is: utilize the signal quality of the EFACH user's that base station (NodeB) locates to measure HSPA scheduling resource by radio network controller (RNC), judge whether to carry out intercarrier and switch.So, just can save the expense of the needed interface-free resources of UE reporting measurement result in the existing handover scheme, and owing to be the transmission of carrying out data by optical fiber between RNC and the base station, for the transmission of eating dishes without rice or wine, therefore the reliability height of transmission, can guarantee the quality that carrier wave switches.
Fig. 1 is the flow chart of the embodiment of the invention one
In this step, measure EFACH user's HSDSCH or the BLER of E-DCH by RNC by measuring the control messages informing base station, like this, utilize the base station that the measurement of HSPA scheduling resource has been substituted the measurement that carrier wave switches that is used for that the UE side is carried out in the prior art scheme in the present invention, thereby can save UE reporting measurement expense to interface-free resources as a result the time.
Preferably, RNC can carry out described notice by measuring control request message.
In this step, the concrete method of measurement of the BLER of described HSDSCH or E-DCH is grasped by those skilled in the art, does not repeat them here.
When utilizing measurement control request message to carry out described notice in the step 101, then can correspondingly adopt in this step and measure the described measurement result of control response information reporting.
Whether step 103, described RNC judge described measurement result greater than the corresponding preset threshold value, if then be the target EFACH carrier wave that described EFACH user determines switching, and notify described EFACH user to switch on the described target EFACH carrier wave.
In this step, RNC compares with corresponding predetermined threshold value by the BLER measurement result of the HSDSCH that will receive or E-DCH, judging whether to carry out carrier wave switches, when measurement result during greater than corresponding threshold value, then judge and to carry out the switching of EFACH intercarrier, thereby carry out follow-up handover operation, trigger UE and switch on the new carrier wave.
Here, it is that described EFACH user determines target EFACH carrier wave that RNC can adopt existing method, does not repeat them here.
Described predetermined threshold value in this step has two, a BLER corresponding to HSDSCH, and another is corresponding to the BLER of EDCH.
Preferably, described RNC notifies described EFACH user to switch on the target EFACH carrier wave by radio bearer reconfiguration message;
Further, after described EFACH user receives described radio bearer reconfiguration message, return radio bearer and reshuffle and finish message and give described RNC, to improve the reliability that carrier wave switches.
By technique scheme as can be seen, the foregoing description utilizes the HSPA scheduling resource to realize carrier switching process to EFACH user, in this process, UE need not transmit the measurement result that is used to carry out the carrier wave switching judging on eating dishes without rice or wine, therefore, channel quality can be avoided eating dishes without rice or wine to the influence of quality of handoff, and valuable interface-free resources can be saved.
In sum, more than be preferred embodiment of the present invention only, be not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a carrier wave changing method is characterized in that, this method may further comprise the steps:
A, radio network controller (RNC) informing base station (NodeB) are measured EFACH user's high-speed downlink shared channel (HSDSCH) or are strengthened the bLock error rate (BLER) of dedicated channel (EDCH);
B, described base station measure the BLER of described HSDSCH or EDCH according to described notice, and described measurement result is reported described RNC;
Whether c, described RNC judge described measurement result greater than the corresponding preset threshold value, if then be the target EFACH carrier wave that described EFACH user determines switching, and notify described EFACH user to switch on the described target EFACH carrier wave;
D, described EFACH user switch on the described target EFACH carrier wave according to described notice.
2. method according to claim 1 is characterized in that, RNC described in the step a carries out described notice by measuring control request message;
Reporting of described measurement result carried out by measuring control response message in the base station among the step b.
3. method according to claim 1 and 2 is characterized in that, RNC described in the step c notifies described EFACH user to switch on the described target EFACH carrier wave by radio bearer reconfiguration message;
Also further comprise after the steps d:
Described EFACH user returns radio bearer and reshuffles and finish message and give described RNC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101158207A CN102196488A (en) | 2010-03-01 | 2010-03-01 | Carrier switching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101158207A CN102196488A (en) | 2010-03-01 | 2010-03-01 | Carrier switching method |
Publications (1)
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| CN102196488A true CN102196488A (en) | 2011-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101158207A Pending CN102196488A (en) | 2010-03-01 | 2010-03-01 | Carrier switching method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1678115A (en) * | 2004-04-01 | 2005-10-05 | 大唐移动通信设备有限公司 | Relay switch-over method in TD-SCDMA mobile communication system |
| WO2006126921A1 (en) * | 2005-05-26 | 2006-11-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and arrangement in a telecommunication system |
| CN101635971A (en) * | 2009-08-28 | 2010-01-27 | 华为技术有限公司 | Soft switching method, soft switching system, radio network controller and base station |
-
2010
- 2010-03-01 CN CN2010101158207A patent/CN102196488A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1678115A (en) * | 2004-04-01 | 2005-10-05 | 大唐移动通信设备有限公司 | Relay switch-over method in TD-SCDMA mobile communication system |
| WO2006126921A1 (en) * | 2005-05-26 | 2006-11-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and arrangement in a telecommunication system |
| CN101635971A (en) * | 2009-08-28 | 2010-01-27 | 华为技术有限公司 | Soft switching method, soft switching system, radio network controller and base station |
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Application publication date: 20110921 |
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