CN102065534B - Power adjustment method and device - Google Patents
Power adjustment method and device Download PDFInfo
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- CN102065534B CN102065534B CN201110033981.6A CN201110033981A CN102065534B CN 102065534 B CN102065534 B CN 102065534B CN 201110033981 A CN201110033981 A CN 201110033981A CN 102065534 B CN102065534 B CN 102065534B
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Abstract
The embodiment of the invention provides a power adjustment method and a device. The method comprises acquiring the channel quality parameter of a terminal currently dispatched in a district; acquiring the retransmission rate corresponding to the channel quality parameter according to the corresponding relation between the channel quality parameter and the retransmission rate; and adjusting the downlink transmission power of the terminal according to the retransmission rate. According to the embodiment of the invention, the power adjustment method can adjust the downlink transmission power of the terminal according to the above steps, thereby improving the base station dispatching flexibility.
Description
Technical field
The embodiment of the present invention relates to the communication technology, particularly relates to a kind of power regulating method and device.
Background technology
High-speed slender body theory (High Speed Downlink Packages Access, be called for short HSDPA) in network, base station is according to the mixed automatic retransfer pre-set (Hybrid Automatic Repeat reQuest, be called for short HARQ) retransmission rate, the down transmitting power of the current terminal be scheduled is adjusted.As bLock error rate (the Block Error Rate of terminal, be called for short BLER) when being greater than the retransmission rate pre-set, down transmitting power and High-Speed Physical Downlink Shared Channel (the High Speed Physical Downlink Shared Channel of terminal can be increased, be called for short HSPDSCH) transmitting power, until the BLER of terminal converges on above-mentioned retransmission rate; When the BLER of terminal is less than the retransmission rate pre-set, the down transmitting power of terminal can be reduced, until the BLER of terminal converges on above-mentioned retransmission rate.
But above-mentioned prior art arranges same fixing retransmission rate to all terminals be scheduled, thus result in the reduction of the dispatching flexibility of base station.
Summary of the invention
The embodiment of the present invention provides a kind of power regulating method and device, to improve the dispatching flexibility of base station.
Embodiments provide a kind of power regulating method, comprising:
Obtain the channel quality parameter of the current terminal be scheduled in community;
According to the corresponding relation of channel quality parameter and retransmission rate, obtain the retransmission rate corresponding with described channel quality parameter;
According to described retransmission rate, the down transmitting power of described terminal is adjusted.
The embodiment of the present invention additionally provides a kind of power adjustment apparatus, comprising:
First acquisition module, for obtaining the channel quality parameter of the current terminal be scheduled in community;
Second acquisition module, for the corresponding relation according to channel quality parameter and retransmission rate, obtains the retransmission rate corresponding with described channel quality parameter;
Adjusting module, for according to described retransmission rate, adjusts the down transmitting power of described terminal.
As shown from the above technical solution, the embodiment of the present invention is by obtaining the channel quality parameter of the current terminal be scheduled in community, according to the corresponding relation of channel quality parameter and retransmission rate, obtain the retransmission rate corresponding with above-mentioned channel quality parameter, thus make the above-mentioned retransmission rate according to obtaining, can adjust the down transmitting power of above-mentioned terminal, improve the dispatching flexibility of base station.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The schematic flow sheet of the power regulating method that Fig. 1 provides for the embodiment of the present invention one;
One structural representation of the power adjustment apparatus that Fig. 2 provides for the embodiment of the present invention two;
Another structural representation of the power adjustment apparatus that Fig. 3 provides for the embodiment of the present invention two.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The schematic flow sheet of the power regulating method that Fig. 1 provides for the embodiment of the present invention one, as shown in Figure 1, the power regulating method of the present embodiment can comprise the following steps:
The channel quality parameter of the current terminal be scheduled in step 101, acquisition community;
Wherein, above-mentioned channel quality parameter can indicate (Channel Quality Indicator for channel quality, be called for short CQI), signal noise ratio (Signal to Noise Ratio, be called for short SNR) etc. can reflect the parameter of channel quality.
In this step, can by base station, such as: Long Term Evolution (Long Term Evolution, be called for short LTE) evolved base station (Evolved NodeB in system, be called for short eNodeB) etc., according to dispatching sequence, determine the current terminal be scheduled.Particularly, the dispatching sequence of terminal in community can be determined according to dispatching priority instruction, also can determine the dispatching sequence of terminal in community with reference to other modes of the prior art, repeat no more herein.
Step 102, corresponding relation according to channel quality parameter and retransmission rate, obtain the retransmission rate corresponding with above-mentioned channel quality parameter;
Further, before this step, can further include the step of the corresponding relation setting up channel quality parameter and retransmission rate.Particularly, can for different channel qualities, the retransmission rate of HARQ is dynamically arranged, instead of is fixed as same target value (such as: 10%): the channel for channel quality good (channel quality parameter is high) arranges lower retransmission rate; Channel for bad channel quality (channel quality parameter is low) arranges higher retransmission rate.Channel quality parameter can be divided into n (n >=2) section in theory, respectively a corresponding n retransmission rate.The method provided for making the embodiment of the present invention clearly, below will with CQI as an example.Wherein, the corresponding relation of CQI and retransmission rate can be as shown in table 1; The corresponding relation of CQI and retransmission rate can also be as shown in table 2.
The corresponding relation one of table 1CQI and retransmission rate
| CQI | Retransmission rate (%) |
| 25＜CQI≤30 | 5 |
| 20＜CQI≤25 | 10 |
| 15＜CQI≤20 | 15 |
| 10＜CQI≤15 | 20 |
| 5＜CQI≤10 | 25 |
| 0＜CQI≤5 | 30 |
The corresponding relation two of table 2CQI and retransmission rate
| CQI | Retransmission rate (%) |
| CQI≥25 | 1 |
| 20≤CQI＜25 | 5 |
| CQI＜20 | 10 |
It should be noted that: concrete corresponding relation can be arranged flexibly according to actual conditions, be more than two examples that the embodiment of the present invention provides, the embodiment of the present invention does not limit this.
Step 103, according to above-mentioned retransmission rate, the down transmitting power of above-mentioned terminal to be adjusted.
In this step, the retransmission rate that base station can be corresponding according to the channel quality parameter of the current terminal be scheduled, adjusts the down transmitting power of this terminal.When the BLER of terminal is greater than above-mentioned retransmission rate, the down transmitting power of terminal can be increased; When the BLER of terminal is less than above-mentioned retransmission rate, the down transmitting power of terminal can be reduced.
In the present embodiment, base station is by obtaining the channel quality parameter of the current terminal be scheduled in community, according to the corresponding relation of channel quality parameter and retransmission rate, obtain the retransmission rate corresponding with above-mentioned channel quality parameter, thus make base station according to the above-mentioned retransmission rate obtained, can adjust the down transmitting power of above-mentioned terminal, improve the dispatching flexibility of base station.Meanwhile, because the retransmission rate of the channel of bad channel quality is higher, can avoid the down transmitting power ceaselessly increasing terminal in prior art that the BLER of terminal just can be made to converge on fixing retransmission rate of the prior art, thus improve descending throughput.
Further, the power regulating method of the present embodiment can further include the step of the adjustment upper limit of the down transmitting power obtaining above-mentioned terminal, limit according to this adjustment upper limit adjustment to the down transmitting power of above-mentioned terminal for base station, namely when the BLER of terminal is greater than above-mentioned retransmission rate, increase the down transmitting power of this terminal, the down transmitting power of above-mentioned terminal is less than or equal to the above-mentioned adjustment upper limit, thus avoid down transmitting power is all used for this terminal, the BLER of this terminal also cannot reach retransmission rate corresponding to the channel quality parameter of this terminal, further increase the dispatching flexibility of base station and descending throughput.
The power regulating method of the present embodiment goes for multiple wireless access network, such as: evolved universal mobile communication system (Universal Mobile Telecommunication System, be called for short UMTS) land radio access web (Evolved Universal Mobile Telecommunication System Territorial Radio Access Network, be called for short E-UTRAN), the network such as UMTS Terrestrial radio access network (UMTS Territorial Radio Access Network, be called for short UTRAN).
Base station wherein can be evolved base station (the Evolved NodeB in E-UTRAN, be called for short eNodeB) or family's evolved base station (Home Evolved NodeB, be called for short HeNB), can also be the equipment such as the base station (NodeB) in UTRAN.
It should be noted that: for aforesaid each embodiment of the method, in order to simple description, therefore it is all expressed as a series of combination of actions, but those skilled in the art should know, the present invention is not by the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in specification all belongs to preferred embodiment, and involved action and module might not be that the present invention is necessary.
In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part described in detail, can see the associated description of other embodiments.
One structural representation of the power adjustment apparatus that Fig. 2 provides for the embodiment of the present invention two, as shown in Figure 2, the power adjustment apparatus of the present embodiment can comprise the first acquisition module 21, second acquisition module 22 and adjusting module 23.Wherein, the first acquisition module 21 is for obtaining the channel quality parameter of the current terminal be scheduled in community; Second acquisition module 22, for the corresponding relation according to channel quality parameter and retransmission rate, obtains the retransmission rate corresponding with above-mentioned channel quality parameter; Adjusting module 23, for according to above-mentioned retransmission rate, adjusts the down transmitting power of above-mentioned terminal.Wherein, above-mentioned channel quality parameter can be the parameter that CQI, SNR etc. can reflect channel quality.
The power adjustment apparatus that in the invention described above embodiment one, method can be provided by the embodiment of the present invention realizes.
As shown in Figure 3, the power adjustment apparatus of the present embodiment can further include sets up module 31, for setting up the corresponding relation of channel quality parameter and retransmission rate, for the second acquisition module 22 according to this corresponding relation, obtain the retransmission rate corresponding with above-mentioned channel quality parameter.Wherein, the corresponding relation of above-mentioned channel quality parameter and retransmission rate can be:
The retransmission rate of the channel that channel quality parameter is high is lower;
The retransmission rate of the channel that channel quality parameter is low is higher.
In the present embodiment, base station obtains the channel quality parameter of the current terminal be scheduled in community by the first acquisition module, by the corresponding relation of the second acquisition module according to channel quality parameter and retransmission rate, obtain the retransmission rate corresponding with above-mentioned channel quality parameter, thus make the above-mentioned retransmission rate that adjusting module obtains according to the second acquisition module, can adjust the down transmitting power of above-mentioned terminal, improve the dispatching flexibility of base station.Meanwhile, because the retransmission rate of the channel of bad channel quality is higher, can avoid the down transmitting power ceaselessly increasing terminal in prior art that the BLER of terminal just can be made to converge on fixing retransmission rate of the prior art, thus improve descending throughput.
Further, the second acquisition module 22 in the present embodiment can also be further used for the adjustment upper limit of the down transmitting power obtaining above-mentioned terminal, limit according to this adjustment upper limit adjustment to the down transmitting power of above-mentioned terminal for adjusting module 23, correspondingly, adjusting module 23 specifically may be used for when the BLER of terminal is greater than the above-mentioned retransmission rate of the second acquisition module 22 acquisition, increase the down transmitting power of this terminal, the down transmitting power of above-mentioned terminal is less than or equal to the above-mentioned adjustment upper limit, thus avoid whole for down transmitting power this terminal of user, the BLER of this terminal also cannot reach retransmission rate corresponding to the channel quality parameter of this terminal, further increase the dispatching flexibility of base station and descending throughput.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (4)
1. a power regulating method, is characterized in that, comprising:
Obtain the channel quality parameter of the current terminal be scheduled in community;
According to the corresponding relation of channel quality parameter and retransmission rate, obtain the retransmission rate corresponding with described channel quality parameter;
According to described retransmission rate, the down transmitting power of described terminal is adjusted;
Described according to described retransmission rate, the down transmitting power of described terminal is adjusted, comprising:
When the bLock error rate of described terminal is greater than described retransmission rate, increase the down transmitting power of described terminal, when the bLock error rate of described terminal is less than described retransmission rate, reduce the down transmitting power of described terminal;
The corresponding relation of described channel quality parameter and retransmission rate, comprising:
The retransmission rate of the channel that channel quality parameter is high is lower;
The retransmission rate of the channel that channel quality parameter is low is higher.
2. method according to claim 1, is characterized in that, described channel quality parameter comprises channel quality instruction or signal noise ratio.
3. a power adjustment apparatus, is characterized in that, comprising:
First acquisition module, for obtaining the channel quality parameter of the current terminal be scheduled in community;
Second acquisition module, for the corresponding relation according to channel quality parameter and retransmission rate, obtains the retransmission rate corresponding with described channel quality parameter;
Adjusting module, for according to described retransmission rate, adjusts the down transmitting power of described terminal;
Described second acquisition module is also for obtaining the adjustment upper limit of the down transmitting power of described terminal;
Described adjusting module specifically for:
When the bLock error rate of described terminal is greater than described retransmission rate, increase the down transmitting power of described terminal, the down transmitting power of described terminal is less than or equal to the described adjustment upper limit;
The corresponding relation of described channel quality parameter and retransmission rate, comprising:
The retransmission rate of the channel that channel quality parameter is high is lower;
The retransmission rate of the channel that channel quality parameter is low is higher.
4. device according to claim 3, is characterized in that, described channel quality parameter comprises channel quality instruction or signal noise ratio.
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Families Citing this family (8)
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| US9137753B2 (en) | 2011-08-08 | 2015-09-15 | Htc Corporation | Method for controlling transmission power of wireless device |
| CN103688581B (en) * | 2013-10-30 | 2017-08-11 | 华为技术有限公司 | It is a kind of that convergent method and apparatus is carried out to external circule power control |
| CN105227265B (en) * | 2014-06-30 | 2019-09-20 | 华为技术有限公司 | The method and transmitting terminal of signal are sent in a kind of machine type communication MTC system |
| CN105610543A (en) * | 2014-11-25 | 2016-05-25 | 中兴通讯股份有限公司 | Method and device for adjusting channel quality indicator (CQI) |
| CN106792462B (en) * | 2016-12-22 | 2020-05-22 | 深圳Tcl数字技术有限公司 | Bluetooth audio transmission adjusting method and device |
| CN109981545A (en) * | 2017-12-28 | 2019-07-05 | 北京松果电子有限公司 | Encoder bit rate adjusts device, method and electronic equipment |
| CN108449164B (en) * | 2018-03-06 | 2021-03-16 | 江阴长仪集团有限公司 | Transmission method of distribution network automation information and distribution network automation terminal |
| CN110875756B (en) * | 2018-08-29 | 2021-07-02 | 杭州海康威视数字技术股份有限公司 | Method and equipment for automatically adjusting transmitting power in frequency hopping communication |
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