CN101114852A - Channel quick load control method dedicated for uplink enhancement - Google Patents
Channel quick load control method dedicated for uplink enhancement Download PDFInfo
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- CN101114852A CN101114852A CNA2006100995405A CN200610099540A CN101114852A CN 101114852 A CN101114852 A CN 101114852A CN A2006100995405 A CNA2006100995405 A CN A2006100995405A CN 200610099540 A CN200610099540 A CN 200610099540A CN 101114852 A CN101114852 A CN 101114852A
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Abstract
The invention discloses a rapid load control method for an uplink enhanced dedicated channel, which is invented to solve the problem that in the prior art, the rapid load control can not be realized when the uplink channel is overloaded, comprising the following steps: when the uplink channel is overloaded, the radio network controller chooses the operation that has no 0 power migration from the non-real-time interactive or background services and adjusting downward the power migration of the service hybrid automatic repeat request; the user terminal equipment and base station adopts the reconfigurable hybrid automatic repeat request power migration to calculate the power grain factors, thus reducing the load rapidly via the Node B rapid power control according to the new power grain factors. Thus, when the uplink channel is overloaded, the rapid load control can be realized via reducing the HARQ power migration, thereby improving the non-real-time interactive and background service instantaneous BLER and through the rapid power control of the base station.
Description
Technical field
The present invention relates to a kind of mobile communication system duty control method, relate in particular to ascending reinforced special channel (EnhancedDedicated Channel, E-DCH) quick load control method.
Background technology
E-DCH is that (Wideband Code Division Multiple Access, WCDMA) the very important performance in up link strengthens WCDMA mobile communication system.Owing to adopted the automatic repeat requests of rapid mixing (HybridAutomatic Repeat Request, HARQ) and base station (Node B) control the fast packet scheduling technology, E-DCH is the elevator system capacity greatly, improves the availability of frequency spectrum, and satisfies user's high speed business demand.
The load control operation generally is that (Radio Network Controller RNC) finishes by radio network controller.Node B periodically sends the public-measurement report to RNC, the uplink load that upgrades the sub-district promptly receive the broadband gross power (Received Total Wide Band Power, RTWP).RNC compares RTWP with load control thresholding, if exceed thresholding, then indicate the uplink load overload, need take some measures to make system loading return to normal level, to guarantee the stable operation of system.
For E-DCH, owing to adopted quick HARQ, all corresponding HARQ section (HARQ Profile) of each specialized media access control stream (MAC-d flow) comprises two parameters of HARQ power excursion and maximum retransmission.RNC can be according to service quality (the Quality of Service of business, QoS) require the configuration above-mentioned parameter, Block Error Rate (the Block Error Ratio that transmits first of HARQ power excursion scalable wherein, BLER) working point, and the residual BLER of maximum retransmission scalable delivery lag and MAC-d flow.If the HARQ power excursion disposes smallerly, then the BLER of transmission will be than higher first, and number of retransmissions may be more, and delivery lag is also big, but can reduce uplink interference.
For interactive class and the background business that E-DCH carried, owing to there is not the qos requirement of delivery lag and assurance bit rate, when uplink load is transshipped, can be by reducing the HARQ power excursion, the instantaneous BLER that improves non real-time interactive class and background business also realizes quick load control by the fast power control of Node B.At this situation, need a kind of method to realize this process at present.
Summary of the invention
For defective and the deficiency that overcomes prior art, the object of the present invention is to provide a kind of channel quick load control method dedicated for uplink enhancement, can be when uplink load be transshipped, by reducing the HARQ power excursion, improve the instantaneous BLER of non real-time interactive class and background business and control the control of realization quick load by the fast power of Node B.
In order to achieve the above object, a kind of channel quick load control method dedicated for uplink enhancement of the present invention may further comprise the steps:
(1) radio network controller judges whether uplink load transships, if judged result then enters step (2) for being, if judged result is for denying then step end;
(2) to select to mix automatic repeat requests power excursion from non real-time interactive class/background business be not 0 business to radio network controller, and the automatic repeat requests power excursion of the mixing of this business is reduced;
(3) subscriber terminal equipment (User Equipment, UE) and Node B adopt the automatic repeat requests power excursion of the mixing rated output gain factor of reprovision, and according to fast power control the carry out quick load down of new power gain factors by Node B.
As a further improvement on the present invention, described step (1) is preceding also comprises:
(A) radio network controller strengthens the dispatching priority indication of dedicated channel data frame according to RAB QoS parameter mapping uplink.
As a further improvement on the present invention, the method for judging in the described step (1) is: radio network controller compares the reception broadband gross power that Node B reports with load control thresholding, judge whether uplink load transships.
As a further improvement on the present invention, described step (A) is specially:
(A1) initial channel is selected and is admitted control to allow service access to ascending reinforced special channel;
(A2) radio network controller reads the RAB parameter, judges professional subclass type, if type of service enters step (A3) for the stream class; If type of service is an interactive class, enter step (A4); If type of service is a background classes, then enter step (A5);
(A3) radio network controller extracts the allocation retention priority QoS parameter from the RAB parameter, and the stream class dispatching priority indication map form according to configuration shines upon this professional dispatching priority indication then;
(A4) radio network controller extracts allocation retention priority and Business Processing priority service mass parameter from the RAB parameter, and the interactive class dispatching priority indication map form according to configuration shines upon this professional dispatching priority indication then;
(A5) radio network controller extracts the allocation retention priority QoS parameter from the RAB parameter, and the background classes dispatching priority indication map form according to configuration shines upon this professional dispatching priority indication then.
As a further improvement on the present invention, described step (2) is specially:
(21) when the uplink load overload, radio network controller judges whether that the automatic repeat requests power excursion of mixing of all interactive class/background classes specialized media access control stream all is zero, if judged result is for being then step end, if judged result enters step (22) for not;
(22) radio network controller selects to mix the specialized media access control stream that automatic repeat requests power excursion is not interactive class/background classes of 0 from low to high according to dispatching priority indication, reduces it successively and mixes automatic repeat requests power excursion.
As a further improvement on the present invention, also comprise after the described step (3):
(4) judge whether uplink load transships, if judged result is returned step (21) for being, if judged result is for denying then step end;
As a further improvement on the present invention, described RAB parameter comprises: class of service, distribution/reservation priority, Business Processing priority.
After adopting above-mentioned method, the E-DCH quick load control method can be when uplink load be transshipped, by reducing the HARQ power excursion of the lower non real-time interactive class/background business of dispatching priority indication, and and then the control of the fast power by Node B realize quick load control, the instantaneous BLER of E-DCH quick load control method of the present invention by improving non real-time interactive class/background business comes the uplink load of quick reduction system, improve power system capacity, and guaranteed the QoS of real time business.
Description of drawings
Fig. 1 is a public-measurement basic flow sheet between RNC and Node B;
Fig. 2 is the dispatching priority indication map flow chart of E-DCH Frame of the present invention;
Fig. 3 is non real-time interactive class of the present invention/background classes MAC-d flow downward modulation HARQ power excursion quick load control flow chart.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, be the basic procedure of public-measurement between RNC and Node B.RNC sends the public-measurement control command to Node B, and the relevant measurement parameter (step 101) of configuration.When the condition of measurement report satisfies (cycle or incident), Node B is to RNC return measurement result (step 102).RNC preserves the measurement result (step 103) of Node B report.
Table 1 shows the HARQ power excursion of the different HARQ sections of support of high-rise configuration.The left side one row are the HARQ power excursion index numerical value that high-level signaling provides, the right one row be corresponding be the HARQ power excursion of unit with dB.(E-DCH Transport Format Combination, E-TFC), UE and Node B adopt reference gain factors and HARQ power excursion to calculate non-quantized power gain factors for selected ascending reinforced special channel transformat combination.The HARQ power excursion can be used to regulate the BLER working point of transmission first, if the HARQ power excursion disposes smallerly, then the BLER of transmission will be than higher first, and number of retransmissions may be more, and delivery lag is also big, but can reduce uplink interference.For not having delivery lag and guaranteeing the interactive class/background business of bit rate qos requirement, when uplink load transships, can reduce the HARQ power excursion, improve its instantaneous BLER, thereby reduce uplink load and guarantee the QoS of real time business.
Table 1HARQ section power excursion Δ
Harq
| The HARQ power excursion index Δ of high-level signaling configuration harq | Corresponding is the Δ of unit with dB harq |
| 6 | 6 |
| 5 | 5 |
| 4 | 4 |
| 3 | 3 |
| 2 | 2 |
| 1 | 1 |
| 0 | 0 |
As shown in Figure 2, be the dispatching priority indication map flow process of E-DCH Frame.If initial channel is selected and admit control to allow service access to E-DCH (step 201), RNC at first reads RAB parameter " Traffic Class ", to judge professional subclass type (step 202).If type of service is stream class (step 203), then RNC extracts allocation retention priority qos parameter (step 204) from the RAB parameter, shines upon this professional dispatching priority indication (step 205) according to pre-configured stream class dispatching priority indication map form then; If type of service is an interactive class (step 206), then RNC extracts allocation retention priority and Business Processing priority qos parameter (step 207) from the RAB parameter, shines upon this professional dispatching priority indication (step 208) according to pre-configured interactive class dispatching priority indication map form then; If type of service is a background classes (step 209), then RNC extracts allocation retention priority qos parameter (step 210) from the RAB parameter, shines upon this professional dispatching priority indication (step 211) according to pre-configured background classes dispatching priority indication map form then.After the dispatching priority indication map finishes, change other process (step 212).
As shown in Figure 3, for when uplink load is transshipped, the non real-time interactive class lower to dispatching priority/background classes MAC-dflow downward modulation HARQ power excursion is to carry out the flow process of quick load control.At first RNC up reception broadband gross power RTWP that Node B is reported and load control thresholding relatively judge whether uplink load transships (step 301).If RTWP is that uplink load is normal less than load control thresholding, then finish uplink load control flow (step 303).If uplink load overload, next the HARQ power excursion that then needs to judge whether all interactive class/background classes MAC-d flow all be adjusted to down 0 (step 302), if judged result is for being, need this moment other uplink load control method of execution carry out load down (step 304); If judged result is not for, then next need select the HARQ power excursion from low to high according to the dispatching priority indication is not interactive class/background classes MAC-d flow (step 305) of 0, reduces the HARQ power excursion (step 306) in the HARQ section successively.Next UE and Node B adopt the HARQ power excursion rated output gain factor (step 307) after reducing, according to the fast power control quick load down operation of realization (step 308) of new power gain factors by Node B.Need to return step 301 at last, judge whether uplink load reduces to normal condition,, then need to repeat above-mentioned load down flow process if load still transships.
Like this, the E-DCH quick load control method can be when uplink load be transshipped, by reducing the HARQ power excursion of the lower non real-time interactive class/background business of dispatching priority indication, and and then the control of the fast power by Node B realize quick load control, the instantaneous BLER of E-DCH quick load control method of the present invention by improving non real-time interactive class/background business comes the uplink load of quick reduction system, improve power system capacity, and guaranteed the QoS of real time business.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.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 the scope that claim of the present invention protects.
Claims (7)
1. a channel quick load control method dedicated for uplink enhancement is characterized in that, may further comprise the steps:
(1) radio network controller judges whether uplink load transships, if judged result then enters step (2) for being, if judged result is for denying then step end;
(2) to select to mix automatic repeat requests power excursion from non real-time interactive class/background business be not 0 business to radio network controller, and the automatic repeat requests power excursion of the mixing of this business is reduced;
(3) the automatic repeat requests power excursion of the mixing rated output gain factor of reprovision is adopted in subscriber terminal equipment and base station, and according to fast power control the carry out load down of new power gain factors by the base station.
2. according to the described channel quick load control method dedicated for uplink enhancement of claim 1, it is characterized in that described step (1) is preceding also to be comprised:
(A) radio network controller strengthens the dispatching priority indication of dedicated channel data frame according to RAB QoS parameter mapping uplink.
3. according to the described channel quick load control method dedicated for uplink enhancement of claim 1, it is characterized in that, the method of judging in the described step (1) is: radio network controller compares the reception broadband gross power that the base station reports with load control thresholding, judge whether uplink load transships.
4. according to the described channel quick load control method dedicated for uplink enhancement of claim 2, it is characterized in that described step (A) is specially:
(A1) initial channel is selected and is admitted control to allow service access to ascending reinforced special channel;
(A2) radio network controller reads the RAB parameter, judges professional subclass type, if type of service enters step (A3) for the stream class; If type of service is an interactive class, enter step (A4); If type of service is a background classes, then enter step (A5);
(A3) radio network controller extracts the allocation retention priority QoS parameter from the RAB parameter, and the stream class dispatching priority indication map form according to configuration shines upon this professional dispatching priority indication then;
(A4) radio network controller extracts allocation retention priority and Business Processing priority service mass parameter from the RAB parameter, and the interactive class dispatching priority indication map form according to configuration shines upon this professional dispatching priority indication then;
(A5) radio network controller extracts the allocation retention priority QoS parameter from the RAB parameter, and the background classes dispatching priority indication map form according to configuration shines upon this professional dispatching priority indication then.
5. according to the described channel quick load control method dedicated for uplink enhancement of claim 4, it is characterized in that described step (2) is specially:
(21) when the uplink load overload, radio network controller judges whether that the automatic repeat requests power excursion of mixing of all interactive class/background classes specialized media access control stream all is zero, if judged result is for being then step end, if judged result enters step (22) for not;
(22) radio network controller selects to mix the specialized media access control stream that automatic repeat requests power excursion is not interactive class/background classes of 0 from low to high according to dispatching priority indication, reduces it successively and mixes automatic repeat requests power excursion.
6. according to the described channel quick load control method dedicated for uplink enhancement of claim 5, it is characterized in that described step also comprises after (3):
(4) judge whether still overload of uplink load, if judged result is returned step (21) for being, if judged result is for denying then step end.
7. according to the described channel quick load control method dedicated for uplink enhancement of claim 2, it is characterized in that described RAB parameter comprises: class of service, distribution/reservation priority, Business Processing priority.
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| CNA2006100995405A CN101114852A (en) | 2006-07-28 | 2006-07-28 | Channel quick load control method dedicated for uplink enhancement |
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| CNA2006100995405A CN101114852A (en) | 2006-07-28 | 2006-07-28 | Channel quick load control method dedicated for uplink enhancement |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010148906A1 (en) * | 2009-12-30 | 2010-12-29 | 中兴通讯股份有限公司 | Power control method and terminal device |
| CN102740441A (en) * | 2012-06-14 | 2012-10-17 | 大唐移动通信设备有限公司 | Method and system for power allocation among carriers of TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) cells |
| CN101841406B (en) * | 2009-03-17 | 2013-08-07 | 中兴通讯股份有限公司 | Position processing method of feedback channel |
| CN104010331B (en) * | 2013-02-25 | 2018-12-18 | 中兴通讯股份有限公司 | The method and device of adaptive load control system in a kind of mobile communication system |
| CN109429322A (en) * | 2017-08-23 | 2019-03-05 | 联发科技股份有限公司 | Based on area power control method and its communication device |
| WO2019214748A1 (en) * | 2018-05-11 | 2019-11-14 | 华为技术有限公司 | Method and device for repeated transmission |
-
2006
- 2006-07-28 CN CNA2006100995405A patent/CN101114852A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841406B (en) * | 2009-03-17 | 2013-08-07 | 中兴通讯股份有限公司 | Position processing method of feedback channel |
| WO2010148906A1 (en) * | 2009-12-30 | 2010-12-29 | 中兴通讯股份有限公司 | Power control method and terminal device |
| RU2504123C2 (en) * | 2009-12-30 | 2014-01-10 | ЗетТиИ Корпорейшн | Power control method and terminal device |
| CN102740441A (en) * | 2012-06-14 | 2012-10-17 | 大唐移动通信设备有限公司 | Method and system for power allocation among carriers of TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) cells |
| CN102740441B (en) * | 2012-06-14 | 2015-07-08 | 大唐移动通信设备有限公司 | Method and system for power allocation among carriers of TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) cells |
| CN104010331B (en) * | 2013-02-25 | 2018-12-18 | 中兴通讯股份有限公司 | The method and device of adaptive load control system in a kind of mobile communication system |
| CN109429322A (en) * | 2017-08-23 | 2019-03-05 | 联发科技股份有限公司 | Based on area power control method and its communication device |
| CN109429322B (en) * | 2017-08-23 | 2021-09-21 | 联发科技股份有限公司 | Area-based power control method and communication device thereof |
| WO2019214748A1 (en) * | 2018-05-11 | 2019-11-14 | 华为技术有限公司 | Method and device for repeated transmission |
| US11558150B2 (en) | 2018-05-11 | 2023-01-17 | Huawei Technologies Co., Ltd. | Repeated transmission method and apparatus |
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