CN102388560B - Method and device for controlling block error rate - Google Patents
Method and device for controlling block error rate Download PDFInfo
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- CN102388560B CN102388560B CN201180001807.1A CN201180001807A CN102388560B CN 102388560 B CN102388560 B CN 102388560B CN 201180001807 A CN201180001807 A CN 201180001807A CN 102388560 B CN102388560 B CN 102388560B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
- H04L1/0007—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format by modifying the frame length
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
- H04L1/203—Details of error rate determination, e.g. BER, FER or WER
Abstract
The invention discloses a method and a device for controlling block error rate and relates to communication field. The object of the invention is to solve the problem of loss of HS-PDSC throughput rate of the prior art. The technical solution of the invention includes the steps of determing taget block error rate of a high-speed physical downlink shared channel according to the quality index and code number of the high-speed physical downlink shared channel; obtaining the current block error rate of the high-speed physical downlink shared channel according to the feedback information reported by a user's device, and regulating the quality index and code number or transmission block size of the high-speed physical downlink shared channel, so that the current block error rate is approximate to the target block error rate. The method and a device for controlling block error rate are applicable to a mobile communication system.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of control method and device of Block Error Rate.
Background technology
Universal mobile telecommunications system (universal mobile telecommunications system, UMTS) in, base station (Nodeb) is in order to improve high-speed physical downlink shared channel (HS-PDSCH) (high speed physical downlink shared channel, HS-PDSCH) throughput, can control the Block Error Rate of HS-PDSCH.In prior art, control the method for Block Error Rate and comprise: the feedback information reporting according to subscriber equipment (user equipment, UE), obtains the current Block Error Rate of HS-PDSCH; Relation according to current Block Error Rate with the target Block Error Rate setting in advance, makes this current Block Error Rate approach the target Block Error Rate setting in advance.For the ease of management, the target Block Error Rate that this sets in advance is fixed value.
State in realization in the process of controlling Block Error Rate, inventor finds prior art, and at least there are the following problems: because the target Block Error Rate setting in advance is fixed value, in the time of channel condition or code word number difference, the value of this target Block Error Rate can not giving consideration to channel condition and the demand of code word number, causes the loss of HS-PDSCH throughput.
Summary of the invention
The embodiment of the present invention provides a kind of control method and device of Block Error Rate, can reduce the loss of high-speed physical downlink shared channel (HS-PDSCH) throughput.
On the one hand, provide a kind of control method of Block Error Rate, having comprised: the target Block Error Rate of determining high-speed physical downlink shared channel (HS-PDSCH) according to the channel quality instruction of high-speed physical downlink shared channel (HS-PDSCH) and code word number; According to the feedback information of user equipment to report, obtain the current Block Error Rate of high-speed physical downlink shared channel (HS-PDSCH); Regulate channel quality instruction or code word number, or regulate the transmission block size of high-speed physical downlink shared channel (HS-PDSCH), make current Block Error Rate approach target Block Error Rate.
On the other hand, provide a kind of control device of Block Error Rate, having comprised:
Target Acquisition module, for determining the target Block Error Rate of high-speed physical downlink shared channel (HS-PDSCH) according to the channel quality instruction of high-speed physical downlink shared channel (HS-PDSCH) and code word number;
Current acquisition module, for according to the feedback information of user equipment to report, obtains the current Block Error Rate of high-speed physical downlink shared channel (HS-PDSCH);
Adjustment module, for regulating channel quality instruction or code word number, or regulates the transmission block size of high-speed physical downlink shared channel (HS-PDSCH), makes current Block Error Rate approach target Block Error Rate.
The control method of the Block Error Rate that the embodiment of the present invention provides and device, by determining after the target Block Error Rate of high-speed physical downlink shared channel (HS-PDSCH), obtain current Block Error Rate, then regulate channel quality instruction or code word number, or adjusting transmission block size, make current Block Error Rate approach target Block Error Rate, thereby realize the control of Block Error Rate.Because target Block Error Rate is to determine according to channel quality instruction and the code word number of high-speed physical downlink shared channel (HS-PDSCH), therefore the value of this target Block Error Rate can be taken into account the channel condition of high-speed physical downlink shared channel (HS-PDSCH) and the demand of code word number, thereby can improve the throughput of this high-speed physical downlink shared channel (HS-PDSCH).The technical scheme that the embodiment of the present invention provides has solved in prior art because the target Block Error Rate setting in advance is fixed value, in the time of channel condition or code word number difference, the value of this target Block Error Rate can not giving consideration to channel condition and the demand of code word number, causes the problem of the loss of HS-PDSCH throughput.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The flow chart of the control method of the Block Error Rate that Fig. 1 provides for the embodiment of the present invention one;
The flow chart of the control method of the Block Error Rate that Fig. 2 provides for the embodiment of the present invention two;
The structural representation of the control device of the Block Error Rate that Fig. 3 provides for the embodiment of the present invention three;
Fig. 4 is the structural representation of Target Acquisition module in the control device of the Block Error Rate shown in Fig. 3;
Fig. 5 is the structural representation one of adjustment module in the control device of the Block Error Rate shown in Fig. 3;
Fig. 6 is the structural representation two of adjustment module in the control device of the Block Error Rate shown in Fig. 3.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Cause the problem of the loss of HS-PDSCH throughput in order to solve prior art, the embodiment of the present invention provides a kind of control method and device of Block Error Rate.
As shown in Figure 1, the control method of the Block Error Rate that the embodiment of the present invention one provides, comprising:
Step 101, determines the target Block Error Rate of this high-speed physical downlink shared channel (HS-PDSCH) according to the channel quality instruction of high-speed physical downlink shared channel (HS-PDSCH) and code word number.
In the present embodiment, in step 101, target Block Error Rate is according to high-speed physical downlink shared channel (HS-PDSCH) (High Speed Physical Downlink Shared Channel, HS-PDSCH) channel quality instruction (Channel Quality Indication, CQI) and code word number are determined.Step 101 can be specially according to the CQI of HS-PDSCH and code word number, and what obtain from emulation more than one obtains this target Block Error Rate Block Error Rate; Also can be specially: first determine throughput corresponding to more than one Block Error Rate in the Block Error Rate threshold value setting in advance according to this code word number, CQI, then from this throughput that more than one Block Error Rate is corresponding, using Block Error Rate corresponding maximum throughput rate as this target Block Error Rate; Can also be specially according to the CQI of HS-PDSCH and code word number, what obtain from base station calculated in advance more than one obtains this target Block Error Rate Block Error Rate; Can also obtain by other means this target Block Error Rate, this is no longer going to repeat them.
In the present embodiment, the process that base station calculated in advance obtains more than one Block Error Rate can comprise: channel quality instruction and the code word number of HS-PDSCH all change, and known; Different code word number and situation corresponding to different channel qualities instruction; Wherein a kind of, when known code word number and channel quality instruction, determine different throughput corresponding to more than one Block Error Rate in the Block Error Rate threshold value setting in advance according to this code word number, channel quality instruction, now can obtain multiple throughputs, corresponding from different more than one Block Error Rates; Due to Block Error Rate corresponding to maximum throughput rate in multiple throughputs, known exactly code word number and channel quality are indicated corresponding target Block Error Rate, therefore, can be from the throughput that more than Block Error Rate is corresponding, obtain Block Error Rate corresponding to maximum throughput rate as target Block Error Rate and store this target Block Error Rate; Other code word number and channel quality indicate the algorithm of corresponding target Block Error Rate the same.
Step 102, according to the feedback information of user equipment to report, obtains the current Block Error Rate of high-speed physical downlink shared channel (HS-PDSCH).
In the present embodiment, subscriber equipment (User Equipment, UE) can be to the instruction of base station transmitting channel quality and feedback information, and base station can obtain definite response ACK and negative response NACK from this feedback information, make base station pass through this ACK and NACK, determine current Block Error Rate.Step 102 can be obtained by said process the current Block Error Rate of HS-PDSCH, also can obtain by other means the current Block Error Rate of HS-PDSCH, and this is no longer going to repeat them.Wherein, determine that by ACK and NACK the method for current Block Error Rate can be: current Block Error Rate=NACK/(ACK+NACK).
Step 103, regulates channel quality instruction or code word number, or regulates the transmission block size of high-speed physical downlink shared channel (HS-PDSCH), makes current Block Error Rate approach target Block Error Rate.
In the present embodiment, obtain after target Block Error Rate and current Block Error Rate by step 101 and step 102, can obtain the relation of this target Block Error Rate and current Block Error Rate; Be that current Block Error Rate is greater than target Block Error Rate or current Block Error Rate is less than target Block Error Rate.If current Block Error Rate is greater than target Block Error Rate, can work as when channel quality is indicated and code word number is constant, reduce transmission block size; Also can work as transmission block size when constant, reduce channel quality instruction or increase code word number.If current Block Error Rate is less than target Block Error Rate, can work as when channel quality is indicated and code word number is constant, increase transmission block size; Also can work as transmission block size when constant, increase channel quality instruction or reduce code word number.Step 103 can be passed through said process, according to the relation of target Block Error Rate and current Block Error Rate, regulates channel quality instruction or code word number, or regulates the transmission block size of high-speed physical downlink shared channel (HS-PDSCH); Also can regulate by other means channel quality instruction or code word number, or regulate the transmission block size of high-speed physical downlink shared channel (HS-PDSCH), this is no longer going to repeat them.
In the present embodiment, while regulating transmission block size by step 103, the transmission block size obtaining after the transmission block size before adjusting and adjusting can be the transmission block sizes values of regulation in 25.321 agreements (25321Medium Access Control (MAC) protocol specification.doc).
The control method of the Block Error Rate that the embodiment of the present invention provides, by determining after the target Block Error Rate of high-speed physical downlink shared channel (HS-PDSCH), obtain current Block Error Rate, then regulate channel quality instruction or code word number, or adjusting transmission block size, make current Block Error Rate approach target Block Error Rate, thereby realize the control of Block Error Rate.Because target Block Error Rate is to determine according to channel quality instruction and the code word number of high-speed physical downlink shared channel (HS-PDSCH), therefore the value of this target Block Error Rate can be taken into account the channel condition of high-speed physical downlink shared channel (HS-PDSCH) and the demand of code word number, thereby can improve the throughput of this high-speed physical downlink shared channel (HS-PDSCH).The technical scheme that the embodiment of the present invention provides has solved in prior art because the target Block Error Rate setting in advance is fixed value, in the time of channel condition or code word number difference, the value of this target Block Error Rate can not giving consideration to channel condition and the demand of code word number, causes the problem of the loss of HS-PDSCH throughput.
As shown in Figure 2, the control method of the Block Error Rate that the embodiment of the present invention two provides, comprising:
Step 201, determines throughput corresponding to more than one Block Error Rate in the Block Error Rate threshold value setting in advance according to code word number, channel quality instruction.
Step 202, from this throughput that more than one Block Error Rate is corresponding, using Block Error Rate corresponding maximum throughput rate as target Block Error Rate.
In the present embodiment, the process that base station calculated in advance obtains more than one Block Error Rate can comprise: channel quality instruction and the code word number of HS-PDSCH all change, and known; Different code word number and situation corresponding to different channel qualities instruction; Wherein a kind of, when known code word number and channel quality instruction, determine different throughput corresponding to more than one Block Error Rate in the Block Error Rate threshold value setting in advance according to this code word number, channel quality instruction, now can obtain multiple throughputs, corresponding from different more than one Block Error Rates; Due to Block Error Rate corresponding to maximum throughput rate in multiple throughputs, known exactly code word number and channel quality are indicated corresponding target Block Error Rate, therefore, can be from the throughput that more than Block Error Rate is corresponding, obtain Block Error Rate corresponding to maximum throughput rate as target Block Error Rate and store this target Block Error Rate; Other code word number and channel quality indicate the algorithm of corresponding target Block Error Rate the same.
In the present embodiment, below taking CQI as 20, code word number is 6 for example describes, and can obtain throughput corresponding to more than one Block Error Rate in the Block Error Rate threshold value setting in advance by step 201; From throughput corresponding to this more than one Block Error Rate, can determine that Block Error Rate is the throughput maximum of 8% correspondence, therefore determine that under this channel condition, target Block Error Rate is 8%.
Step 203, according to the feedback information of user equipment to report, obtains the current Block Error Rate of high-speed physical downlink shared channel (HS-PDSCH).
In the present embodiment, UE can be to the instruction of base station transmitting channel quality and feedback information, and base station can obtain ACK and NACK from this feedback information, makes base station pass through this ACK and NACK, determines current Block Error Rate.Step 203 can be obtained by said process the current Block Error Rate of HS-PDSCH, also can obtain by other means the current Block Error Rate of HS-PDSCH, and this is no longer going to repeat them.Wherein, determine that by ACK and NACK the method for current Block Error Rate can be: current Block Error Rate=NACK/(ACK+NACK).
In the present embodiment, suppose that current channel condition is that CQI is 20, code word number is 6, by the ACK in the feedback information of user equipment to report and NACK, by current Block Error Rate=NACK/(ACK+NACK) determine that current Block Error Rate is 15%.
Step 204, regulates channel quality instruction or code word number, or regulates the transmission block size of high-speed physical downlink shared channel (HS-PDSCH), makes current Block Error Rate approach target Block Error Rate.
In the present embodiment, obtain after target Block Error Rate and current Block Error Rate by step 202 and step 203, can obtain the relation of this target Block Error Rate and current Block Error Rate; Be that current Block Error Rate is greater than target Block Error Rate or current Block Error Rate is less than target Block Error Rate.If current Block Error Rate is greater than target Block Error Rate, can work as when channel quality is indicated and code word number is constant, reduce transmission block size; Also can work as transmission block size when constant, increase channel quality instruction or increase code word number.If current Block Error Rate is less than target Block Error Rate, can work as when channel quality is indicated and code word number is constant, increase transmission block size; Also can work as transmission block size when constant, reduce channel quality instruction or reduce code word number.Step 204 can be passed through said process, according to the relation of target Block Error Rate and current Block Error Rate, regulates channel quality instruction or code word number, or regulates the transmission block size of high-speed physical downlink shared channel (HS-PDSCH); Also can regulate by other means channel quality instruction or code word number, or regulate the transmission block size of high-speed physical downlink shared channel (HS-PDSCH), this is no longer going to repeat them.
In the present embodiment, while regulating transmission block size by step 204, the transmission block size obtaining after the transmission block size before adjusting and adjusting can be the transmission block sizes values specifying in 25.321 agreements.
In the present embodiment, can determine that by the TBS table shown in table 1 working as CQI is 20, code word number is that 6 o'clock TBS are 10840.Because current Block Error Rate 15% is greater than target Block Error Rate 8%, therefore can work as when channel quality is indicated and code word number is constant, transmission block size is reduced to 10073 by 10840; Also can work as transmission block size when constant, increase channel quality instruction or increase code word number.So that transmission block size is reduced to 10073 as example by 10840, the current Block Error Rate again obtaining by step 203 is 10%; Therefore can be again work as channel quality instruction and code word number when constant by said process, reduce transmission block size, or in the time that transmission block size is constant, increase that channel quality is indicated or increase code word number, until current Block Error Rate converges to target Block Error Rate.In the time that the current Block Error Rate again obtaining is less than target Block Error Rate, can work as when channel quality is indicated and code word number is constant, increase transmission block size; Also can work as transmission block size when constant, reduce channel quality instruction or reduce code word number, until current Block Error Rate converges to target Block Error Rate.
Table 1
The control method of the Block Error Rate that the embodiment of the present invention provides, by determining after the target Block Error Rate of high-speed physical downlink shared channel (HS-PDSCH), obtain current Block Error Rate, then regulate channel quality instruction or code word number, or adjusting transmission block size, make current Block Error Rate approach target Block Error Rate, thereby realize the control of Block Error Rate.Because target Block Error Rate is to determine according to channel quality instruction and the code word number of high-speed physical downlink shared channel (HS-PDSCH), therefore the value of this target Block Error Rate can be taken into account the channel condition of high-speed physical downlink shared channel (HS-PDSCH) and the demand of code word number, thereby can improve the throughput of this high-speed physical downlink shared channel (HS-PDSCH).The technical scheme that the embodiment of the present invention provides has solved in prior art because the target Block Error Rate setting in advance is fixed value, in the time of channel condition or code word number difference, the value of this target Block Error Rate can not giving consideration to channel condition and the demand of code word number, causes the problem of the loss of HS-PDSCH throughput.
As shown in Figure 3, the control device of the Block Error Rate that the embodiment of the present invention three provides, comprising:
Target Acquisition module 301, for determining the target Block Error Rate of this high-speed physical downlink shared channel (HS-PDSCH) according to the channel quality instruction of high-speed physical downlink shared channel (HS-PDSCH) and code word number.
In the present embodiment, in Target Acquisition module 301, target Block Error Rate is to determine according to the CQI of HS-PDSCH and code word number.Target Acquisition module 301 can be specifically for according to the CQI of HS-PDSCH and code word number, and what obtain from emulation more than one obtains this target Block Error Rate Block Error Rate; Also can be specifically for: first determine throughput corresponding to more than one Block Error Rate in the Block Error Rate threshold value setting in advance according to this code word number, CQI, then from this throughput that more than one Block Error Rate is corresponding, using Block Error Rate corresponding maximum throughput rate as this target Block Error Rate; Can also be specifically for according to the CQI of HS-PDSCH and code word number, what obtain from base station calculated in advance more than one obtains this target Block Error Rate Block Error Rate; Can also obtain by other means this target Block Error Rate, this is no longer going to repeat them.
In the present embodiment, the process that base station calculated in advance obtains more than one Block Error Rate can comprise: channel quality instruction and the code word number of HS-PDSCH all change, and known; Different code word number and situation corresponding to different channel qualities instruction; Wherein a kind of, when known code word number and channel quality instruction, determine different throughput corresponding to more than one Block Error Rate in the Block Error Rate threshold value setting in advance according to this code word number, channel quality instruction, now can obtain multiple throughputs, corresponding from different more than one Block Error Rates; Due to Block Error Rate corresponding to maximum throughput rate in multiple throughputs, known exactly code word number and channel quality are indicated corresponding target Block Error Rate, therefore, can be from the throughput that more than Block Error Rate is corresponding, obtain Block Error Rate corresponding to maximum throughput rate as target Block Error Rate and store this target Block Error Rate; Other code word number and channel quality indicate the algorithm of corresponding target Block Error Rate the same.
Current acquisition module 302, for according to the feedback information of user equipment to report, obtains the current Block Error Rate of high-speed physical downlink shared channel (HS-PDSCH).
In the present embodiment, UE can be to the instruction of base station transmitting channel quality and feedback information, and base station can obtain ACK and NACK from this feedback information, makes base station pass through this ACK and NACK, determines current Block Error Rate.Current acquisition module 302 can obtain by said process the current Block Error Rate of HS-PDSCH, also can obtain by other means the current Block Error Rate of HS-PDSCH, and this is no longer going to repeat them.Wherein, determine that by ACK and NACK the method for current Block Error Rate can be: current Block Error Rate=NACK/(ACK+NACK).
Adjustment module 303, for regulating channel quality instruction or code word number, or regulates the transmission block size of high-speed physical downlink shared channel (HS-PDSCH), makes current Block Error Rate approach target Block Error Rate.
In the present embodiment, obtain after target Block Error Rate and current Block Error Rate by Target Acquisition module 301 and current acquisition module 302, can obtain the relation of this target Block Error Rate and current Block Error Rate; Be that current Block Error Rate is greater than target Block Error Rate or current Block Error Rate is less than target Block Error Rate.If current Block Error Rate is greater than target Block Error Rate, can work as when channel quality is indicated and code word number is constant, reduce transmission block size; Also can work as transmission block size when constant, increase channel quality instruction or increase code word number.If current Block Error Rate is less than target Block Error Rate, can work as when channel quality is indicated and code word number is constant, increase transmission block size; Also can work as transmission block size when constant, reduce channel quality instruction or reduce code word number.Adjustment module 303 can be passed through said process, according to the relation of target Block Error Rate and current Block Error Rate, regulates the transmission block size of channel quality instruction, code word number or high-speed physical downlink shared channel (HS-PDSCH); The transmission block size that also can regulate by other means channel quality instruction, code word number or high-speed physical downlink shared channel (HS-PDSCH), this is no longer going to repeat them.
In the present embodiment, while regulating transmission block size by adjustment module 303, the transmission block size obtaining after the transmission block size before adjusting and adjusting can be the transmission block sizes values specifying in 25.321 agreements.
Further, as shown in Figure 4, Target Acquisition module 301 can comprise:
Throughput is obtained submodule 3011, for determining according to code word number, channel quality instruction throughput corresponding to more than one Block Error Rate of Block Error Rate threshold value setting in advance;
Target submodule 3012, for throughput corresponding to the more than one Block Error Rate that obtains from described throughput acquisition module, using Block Error Rate corresponding maximum throughput rate as described target Block Error Rate.
In the present embodiment, channel quality instruction and the code word number of HS-PDSCH all change, and known; Different code word number and situation corresponding to different channel qualities instruction; Wherein a kind of, when known code word number and channel quality instruction, can obtain submodule 3011 by throughput, determine throughput corresponding to more than one Block Error Rate in the Block Error Rate threshold value setting in advance according to this code word number, channel quality instruction, now can obtain multiple throughputs, corresponding with more than one Block Error Rate; Due to Block Error Rate corresponding to maximum throughput rate in multiple throughputs, known exactly code word number and channel quality are indicated corresponding target Block Error Rate, therefore, target submodule 3012 can be from the throughput that more than Block Error Rate is corresponding, obtains Block Error Rate corresponding to maximum throughput rate as target Block Error Rate and stores this target Block Error Rate; Other code word number and channel quality indicate the algorithm of corresponding target Block Error Rate the same.
Further, as shown in Figure 5, in the time that target Block Error Rate is greater than current Block Error Rate, adjustment module 302, can also comprise:
First regulates submodule 3021 or second to regulate submodule 3022.
Wherein, first regulates submodule 3021, for when channel quality instruction and code word number are when constant, and increase transmission block size; Second regulates submodule 3022, in the time that transmission block size is constant, reduces channel quality instruction or reduces code word number.
Further, as shown in Figure 6, in the time that target Block Error Rate is less than current Block Error Rate, adjustment module 302, can also comprise:
The 3rd regulates submodule 3023 or the 4th to regulate submodule 3024.
Wherein, the 3rd regulates submodule 3023, for indicating when channel quality and code word number when constant, reduces transmission block size; The 4th regulates submodule 3024, in the time that transmission block size is constant, increases channel quality instruction or increases code word number.
The control device of the Block Error Rate that the embodiment of the present invention provides, by determining after the target Block Error Rate of high-speed physical downlink shared channel (HS-PDSCH), obtain current Block Error Rate, then regulate channel quality instruction or code word number, or adjusting transmission block size, make current Block Error Rate approach target Block Error Rate, thereby realize the control of Block Error Rate.Because target Block Error Rate is to determine according to channel quality instruction and the code word number of high-speed physical downlink shared channel (HS-PDSCH), therefore the value of this target Block Error Rate can be taken into account the channel condition of high-speed physical downlink shared channel (HS-PDSCH) and the demand of code word number, thereby can improve the throughput of this high-speed physical downlink shared channel (HS-PDSCH).The technical scheme that the embodiment of the present invention provides has solved in prior art because the target Block Error Rate setting in advance is fixed value, in the time of channel condition or code word number difference, the value of this target Block Error Rate can not giving consideration to channel condition and the demand of code word number, causes the problem of the loss of HS-PDSCH throughput.
The control method of the Block Error Rate that the present embodiment provides and device, can be applied in universal mobile telecommunications system.
The software module that the method for describing in conjunction with embodiment disclosed herein or the step of algorithm can directly use hardware, processor to carry out, or the combination of the two is implemented.Software module can be placed in the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection range of claim.
Claims (8)
1. a control method for Block Error Rate, is characterized in that, comprising:
Determine the target Block Error Rate of described high-speed physical downlink shared channel (HS-PDSCH) according to the code word number of the channel quality instruction of high-speed physical downlink shared channel (HS-PDSCH) and described high-speed physical downlink shared channel (HS-PDSCH);
According to the feedback information of user equipment to report, obtain the current Block Error Rate of described high-speed physical downlink shared channel (HS-PDSCH);
Regulate described channel quality instruction or described code word number, or regulate the transmission block size of described high-speed physical downlink shared channel (HS-PDSCH), make described current Block Error Rate approach described target Block Error Rate.
2. the control method of Block Error Rate according to claim 1, is characterized in that, the described instruction of the channel quality according to high-speed physical downlink shared channel (HS-PDSCH) and code word number are determined the target Block Error Rate of described high-speed physical downlink shared channel (HS-PDSCH), comprising:
Determine throughput corresponding to more than one Block Error Rate in the Block Error Rate threshold value setting in advance according to described code word number and the instruction of described channel quality;
From the described throughput that more than Block Error Rate is corresponding, using Block Error Rate corresponding maximum throughput rate as described target Block Error Rate.
3. the control method of Block Error Rate according to claim 1 and 2, it is characterized in that, in the time that described target Block Error Rate is greater than described current Block Error Rate, the described channel quality instruction of described adjusting or described code word number, or regulate the transmission block size of described high-speed physical downlink shared channel (HS-PDSCH), comprising:
When the instruction of described channel quality and described code word number are when constant, increase described transmission block size; Or
In the time that described transmission block size is constant, reduces described channel quality instruction or reduce described code word number.
4. the control method of Block Error Rate according to claim 1 and 2, it is characterized in that, in the time that described target Block Error Rate is less than current Block Error Rate, the described channel quality instruction of described adjusting or described code word number, or regulate the transmission block size of described high-speed physical downlink shared channel (HS-PDSCH), comprising:
When the instruction of described channel quality and described code word number are when constant, reduce described transmission block size; Or
In the time that described transmission block size is constant, increases described channel quality instruction or increase described code word number.
5. a control device for Block Error Rate, is characterized in that, comprising:
Target Acquisition module, for determining the target Block Error Rate of described high-speed physical downlink shared channel (HS-PDSCH) according to the code word number of the channel quality instruction of high-speed physical downlink shared channel (HS-PDSCH) and described high-speed physical downlink shared channel (HS-PDSCH);
Current acquisition module, for according to the feedback information of user equipment to report, obtains the current Block Error Rate of described high-speed physical downlink shared channel (HS-PDSCH);
Adjustment module, for regulating described channel quality instruction or described code word number, or regulates the transmission block size of described high-speed physical downlink shared channel (HS-PDSCH), makes described current Block Error Rate approach described target Block Error Rate.
6. the control device of Block Error Rate according to claim 5, is characterized in that, described Target Acquisition module, comprising:
Throughput is obtained submodule, for determining according to described code word number and the instruction of described channel quality throughput corresponding to more than one Block Error Rate of Block Error Rate threshold value setting in advance;
Target submodule, for the throughput that more than Block Error Rate is corresponding obtaining from described throughput acquisition module, using Block Error Rate corresponding maximum throughput rate as described target Block Error Rate.
7. according to the control device of the Block Error Rate described in claim 5 or 6, it is characterized in that, when described target Block Error Rate is greater than described current Block Error Rate, described adjustment module, comprising:
First regulates submodule or second to regulate submodule;
Described first regulates submodule, for indicating when described channel quality and when described code word number is constant, increasing described transmission block size;
Described second regulates submodule, in the time that described transmission block size is constant, reduces described channel quality instruction or reduces described code word number.
8. according to the control device of the Block Error Rate described in claim 5 or 6, it is characterized in that, when described target Block Error Rate is less than current Block Error Rate, described adjustment module, comprising:
The 3rd regulates submodule or the 4th to regulate submodule;
The described the 3rd regulates submodule, for indicating when described channel quality and when described code word number is constant, reducing described transmission block size;
The described the 4th regulates submodule, in the time that described transmission block size is constant, increases described channel quality instruction or increases described code word number.
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| PCT/CN2011/080365 WO2012149781A1 (en) | 2011-09-29 | 2011-09-29 | Method and apparatus for controlling block error rate |
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| CN102388560A CN102388560A (en) | 2012-03-21 |
| CN102388560B true CN102388560B (en) | 2014-09-03 |
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| US9628154B2 (en) | 2015-03-03 | 2017-04-18 | Samsung Electronics Co., Ltd. | Apparatus for and method of channel quality prediction through computation of multi-layer channel quality metric |
| CN107786301A (en) * | 2016-08-26 | 2018-03-09 | 深圳市金立通信设备有限公司 | A kind of method and terminal of data frame transfer processing |
| CN114138099A (en) * | 2021-11-15 | 2022-03-04 | Oppo广东移动通信有限公司 | Method, device and terminal for configuring memory |
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| CN1859066A (en) * | 2006-01-18 | 2006-11-08 | 华为技术有限公司 | Method and device for channel quality indication calibrating and base station dispatching users data |
| CN101247150A (en) * | 2008-02-28 | 2008-08-20 | 中兴通讯股份有限公司 | External loop power control method and device for HSDSCH, BLER regulation method and device |
| CN101453781A (en) * | 2008-12-19 | 2009-06-10 | 上海华为技术有限公司 | Method and base station for regulating initial block error rate IBLER |
| WO2010075764A1 (en) * | 2008-12-31 | 2010-07-08 | 华为技术有限公司 | Method and device for allocating the number and power of a code word |
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| US6983166B2 (en) * | 2001-08-20 | 2006-01-03 | Qualcomm, Incorporated | Power control for a channel with multiple formats in a communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1859066A (en) * | 2006-01-18 | 2006-11-08 | 华为技术有限公司 | Method and device for channel quality indication calibrating and base station dispatching users data |
| CN101247150A (en) * | 2008-02-28 | 2008-08-20 | 中兴通讯股份有限公司 | External loop power control method and device for HSDSCH, BLER regulation method and device |
| CN101453781A (en) * | 2008-12-19 | 2009-06-10 | 上海华为技术有限公司 | Method and base station for regulating initial block error rate IBLER |
| WO2010075764A1 (en) * | 2008-12-31 | 2010-07-08 | 华为技术有限公司 | Method and device for allocating the number and power of a code word |
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