CN116112124B - Method and device for configuring uplink shared channel in adaptive adjustment coding - Google Patents
Method and device for configuring uplink shared channel in adaptive adjustment coding Download PDFInfo
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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
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
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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
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
- H04L1/0017—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement
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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
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The invention relates to a configuration method of an uplink shared channel in self-adaptive regulation coding, which comprises the following steps: obtaining estimated signal-to-noise ratio in each physical channel in the physical layer of the uplink shared channel; constructing a first function to operate the obtained multiple estimated signal-to-noise ratios, and obtaining a first initial signal-to-noise ratio serving as a loading parameter of inner loop control; correcting the signal-to-noise ratio change value one by one according to the response signal returned by the outer ring to obtain a current signal-to-noise ratio change value; judging whether the current signal-to-noise ratio change value is zero, if so, maintaining the first function as an initial signal-to-noise ratio calculation function of inner ring control; if not, constructing a second function to adjust the inner loop loading parameters. The invention also relates to a configuration device. The method and the device for configuring the uplink shared channel in the adaptive adjustment coding have the following beneficial effects: the transmission efficiency at the initial stage of transmission can be improved.
Description
Technical Field
The present invention relates to the field of data transmission, and in particular, to a method and apparatus for adaptively adjusting configuration of an uplink shared channel in coding.
Background
AMC (Adaptive Modulation and Coding, adaptive modulation coding) is an adaptive coding modulation technique used on a radio channel, and ensures the transmission quality of a link by adjusting the modulation scheme and coding rate of radio link transmission. And PUSCH is an uplink shared channel, which is one channel for transmitting AMC uplink and commands. The AMC inner loop refers to a signal-to-noise ratio (SNR) on which a base station decides a basis by estimating channel conditions, by which a coding scheme, a code rate, etc. to be used are decided. AMC outer loop refers to the adjustment of signal to noise ratio by feedback signal
Control and thus make inThe set block error rate bler issues to improve the transmission efficiency of the channel as much as possible. In general, the SNR varies widely due to the different power gains of the channels to the antennas, either by hardware or by the wireless channel or for other reasons. At this time, if the scheduling mcs is not reasonable, that is, the modulation scheme and the coding mode selected according to the SNR are not reasonable due to the SNR selection error, the initial performance is much worse.
Disclosure of Invention
The invention aims to solve the technical problem that initial transmission performance in the initial transmission stage is poor in the prior art, and provides a method and a device for configuring an uplink shared channel in adaptive adjustment coding, which can improve the initial transmission performance.
The technical scheme adopted for solving the technical problems is as follows: a configuration method for constructing an uplink shared channel in adaptive adjustment coding comprises the following steps:
obtaining estimated signal-to-noise ratio in each physical channel in the physical layer of the uplink shared channel;
constructing a first function to operate the obtained multiple estimated signal-to-noise ratios, and taking the obtained operation result as a first initial signal-to-noise ratio as a loading parameter of the inner loop control of the uplink shared channel;
correcting the signal-to-noise ratio change value one by one according to the response signal returned by the outer ring in the set time to obtain the current signal-to-noise ratio change value;
judging whether the current signal-to-noise ratio change value is zero, if so, maintaining the first function as an initial signal-to-noise ratio calculation function of inner ring control; if the current signal-to-noise ratio change value is not equal to zero, replacing the first function with a second function to serve as an initial signal-to-noise ratio calculation function of the inner loop control; the second function calculates the estimated signal-to-noise ratio obtained from each physical channel to obtain an initial signal-to-noise ratio which is a second initial signal-to-noise ratio; the value of the second initial signal-to-noise ratio is between the first initial signal-to-noise ratio and the sum of the first initial signal-to-noise ratio and the current signal-to-noise ratio variation value.
Still further, the method further comprises the following steps:
and when the current signal-to-noise ratio change value is not equal to zero, changing the initial value of the signal-to-noise ratio change value in the outer loop control, so that the initial value of the new signal-to-noise ratio change value is the difference between the current signal-to-noise ratio change value minus the second initial signal-to-noise ratio and the first initial signal-to-noise ratio.
Further, the step of correcting the signal-to-noise ratio variation value by the response signal is as follows:
and receiving response signals, starting from the initial value of the signal-to-noise ratio change value according to the type of the received response signals, and increasing or decreasing the set signal-to-noise ratio adjustment value one by one according to the number of the response signals to obtain the current signal-to-noise ratio change value.
Further, when an ACK response signal is received, the current signal-to-noise ratio change value is added with a first set number of signal-to-noise ratio adjustment values; when receiving a NACK response signal, reducing the current signal-to-noise ratio change value by a second set number of signal-to-noise ratio adjustment values; wherein.
Further, the first function includes an average function that averages the estimated signal-to-noise ratios in the physical channels; the second function comprises a minimum function for taking the minimum value of the estimated signal-to-noise ratio in each physical channel when the current signal-to-noise ratio change value is larger than zero; and the second function comprises a maximum function for taking the maximum value of the estimated signal-to-noise ratio in each physical channel when the current signal-to-noise ratio change value is smaller than zero.
Still further, the first and second functions further include a linear interpolation function and a nonlinear interpolation function.
The invention also relates to a configuration device of the uplink shared channel in the self-adaptive adjustment coding, which comprises:
signal-to-noise ratio acquisition module: the method comprises the steps of obtaining estimated signal-to-noise ratios in each physical channel in a physical layer of an uplink shared channel;
and (5) loading a parameter setting module: the method comprises the steps of constructing a first function, calculating a plurality of obtained signal-to-noise ratios, and taking an obtained calculation result as a first initial signal-to-noise ratio as a loading parameter of inner loop control of an uplink shared channel;
channel variation measuring module: the signal-to-noise ratio correction device is used for correcting the signal-to-noise ratio change values one by one according to the response signals returned by the outer ring in the set time to obtain the current signal-to-noise ratio change values;
and a judging module: used for judging whether the current signal-to-noise ratio change value is equal to zero;
and a loading parameter maintenance module: the first function is used for maintaining the first function as an initial signal-to-noise ratio calculation function of the inner ring control under the condition that the current signal-to-noise ratio change value is equal to zero;
and (5) loading a parameter modification module: the first function is used for replacing the first function to serve as an initial signal-to-noise ratio calculation function of the inner ring control under the condition that the current signal-to-noise ratio change value is not equal to zero; the second function calculates the estimated signal-to-noise ratio obtained from each physical channel to obtain an initial signal-to-noise ratio which is a second initial signal-to-noise ratio; the value of the second initial signal-to-noise ratio is between the first initial signal-to-noise ratio and the sum of the first initial signal-to-noise ratio and the current signal-to-noise ratio variation value.
Still further, the method further comprises:
and the signal-to-noise ratio change value adjusting module: and the starting value of the signal to noise ratio change value in the outer loop control is changed when the current signal to noise ratio change value is not equal to zero, so that the starting value of the new signal to noise ratio change value is the difference between the current signal to noise ratio change value minus the second initial signal to noise ratio and the first initial signal to noise ratio.
Further, the channel change measurement module receives the response signal, starts from the initial value of the signal-to-noise ratio change value according to the type of the received response signal, and increases or decreases the set signal-to-noise ratio adjustment value one by one according to the number of the response signal to obtain the current signal-to-noise ratio change value;
when an ACK response signal is received, adding a first set number of signal-to-noise ratio adjustment values to the current signal-to-noise ratio change value; when receiving a NACK response signal, the current signal-to-noise ratio variation value is reduced by a second set number of signal-to-noise ratio adjustment values.
Further, the first function includes an average function that averages the estimated signal-to-noise ratios in the physical channels; the second function comprises a minimum function for taking the minimum value of the estimated signal-to-noise ratio in each physical channel when the current signal-to-noise ratio change value is larger than zero; and the second function comprises a maximum function for taking the maximum value of the estimated signal-to-noise ratio in each physical channel when the current signal-to-noise ratio change value is smaller than zero.
The method and the device for configuring the uplink shared channel in the adaptive adjustment coding have the following beneficial effects: the loading parameters are set to obtain the first initial signal-to-noise ratio for searching or determining the parameters such as the coding mode, the code rate and the like by using the first function, the current signal-to-noise ratio change value is obtained according to the received response signal, and then the initial signal-to-noise ratio value and the obtaining mode are modified, adjusted or maintained according to whether the current signal-to-noise ratio change value is zero or not, namely, the actual condition of data transmission in a channel is adjusted, so that the parameters suitable for the actual condition of the channel can be found quickly at the initial stage of data transmission, and the efficiency at the initial stage of signal transmission is higher. Therefore, it can improve the transmission efficiency at the initial stage of transmission.
Drawings
Fig. 1 is a flow chart of a method in an embodiment of a method and apparatus for configuring an uplink shared channel in adaptive modulation coding according to the present invention;
fig. 2 is a schematic structural view of the configuration device in the embodiment.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, in an embodiment of a method and an apparatus for configuring an uplink shared channel in adaptive adjustment coding according to the present invention, the configuration method and the configuration apparatus are described by taking configuration and adjustment of an initial period of data transmission for PUSCH (shared uplink channel) of N (2N 4) streams as an example. The configuration method comprises the following steps:
step S11, obtaining the estimated signal-to-noise ratio in the physical channel: in this step, estimated signal-to-noise ratios estimated in each physical channel in the physical layer of the uplink shared channel are obtained; in this embodiment, the physical layer (PHY) has a plurality of channels, as described above, N in total, N being 2 to 4; the shared uplink channel mapped by the channel can transmit data in the physical channels, and the channel states in the physical channels are inconsistent due to hardware differences or other reasons, if fixed loading parameters are adopted in a conventional manner, the data transmission efficiency in the initial stage can be low, and the transmission effect is poor. By adopting the configuration method in the embodiment, a better transmission effect can be achieved quickly. In this step, the base station predicts the channel conditions of the plurality of physical channels, and obtains the estimated signal-to-noise ratio of each channel. The number of signal to noise ratios obtained here is identical to the number of channels, also N.
Step S12 constructs a first function, resulting in a first initial signal-to-noise ratio as a loading parameter: in the step, a first function is constructed to operate the obtained multiple estimated signal-to-noise ratios, and the obtained operation result is used as a first initial signal-to-noise ratio and is used as a loading parameter of the inner loop control of the uplink shared channel. In this embodiment, the first function is an average function that averages the estimated signal-to-noise ratios in each physical channel; that is, the average value, that is, the first initial signal-to-noise ratio, is obtained by averaging the estimated signal-to-noise ratios of the plurality of physical channels obtained in the above steps, and the first initial signal-to-noise ratio is used as a loading parameter, and is used as a basis for selecting transmission parameters such as a coding mode, a code rate, and the like during an initial period of starting communication.
Step S13, obtaining a current signal-to-noise ratio variation value: in the step, in a set time, the signal-to-noise ratio change value is adjusted by using a response signal returned by an outer ring, so as to obtain a current signal-to-noise ratio change value representing the channel state; after a set time (for example, after transmission of a plurality of data frames), a current signal-to-noise ratio variation value adjusted by a plurality of response signals is obtained. Specifically, after the data starts to be transmitted, the response signal returned by the outer loop starts to be received, and the value of the change of the signal to noise ratio is changed
The corresponding adjustment is started, initially, +.>
And (2) adding or subtracting an integer multiple of the signal-to-noise ratio adjustment value according to the type of the response signal when receiving a response signal, and repeating for a period of time to obtain the current signal-to-noise ratio change value. That is, in this step, a response signal is received, and the set snr adjustment value is increased or decreased based on the initial snr change value according to the type of the received response signal, so as to obtain the current snr change value; when an ACK response is received, adding a first set number of signal-to-noise ratio regulating values to the current signal-to-noise ratio changing value; when receiving a NACK response signal, the current signal-to-noise ratio is reduced by a second set number of signal-to-noise ratio adjustment values. In practice, this adjustment is related to a set or required block error rate (bler), which is typically indicative of the state of the channel. For example, on the basis of the 10% of the commonly used block error rate requirement, if 9 ACKs and 1 NACK are received in 10 response signals, the requirements of the block error rate are considered to be met, the channel state is normal and is fully utilized, the current setting, particularly the setting of the inner loop parameters, is reasonable, and the current block error rate requirement can be met at the moment>
Should be zero because 9-9=0. To achieve this, when an ACK occurs, a signal-to-noise ratio adjustment value is added to the signal-to-noise ratio change value, and the adjustment value is set to be a; and when NACK occurs, subtracting 9 signal-to-noise ratio adjustment values, namely 9a, from the signal-to-noise ratio change value, namely, the case that the first set number is 1 and the second set number is 9. Thus, the return signal satisfying the block error rate of 10% will have its signal to noise ratio change value 9 times plus the adjustment value a, and when NACK occurs, subtracting 9a once, finally realizing +.>
Unchanged, or zero. In summary, if the original configuration is better, in case of just meeting the block error rate requirement, the +.>
No change occurs, or its initial value, i.e. zero. If after a period of time the above->
Deviations from zero indicate that the inner ring selection may not be appropriate and that adjustment is required.
Step S14, if the current signal to noise ratio change value is zero, executing step S15; if not, step S16 is performed.
Step S15 maintains a first initial signal-to-noise ratio as a loading parameter: in this step, the current snr change value of zero indicates that the previous settings, in particular the loading parameters of the inner loop, are appropriate and do not need to be adjusted. Thus, the first function is maintained as an initial signal-to-noise ratio calculation function for the inner loop control, and the first initial signal-to-noise ratio is maintained as a loading parameter.
Step S16, constructing a second function, and obtaining a second initial signal-to-noise ratio as a loading parameter: in this step, since the current snr variation is not zero, it means that the previous settings need to be modified to adapt to the channel reality as much as possible. For this purpose, a second function is used in this step instead of the first function as an initial signal-to-noise ratio calculation function for the inner loop control; the second function calculates the estimated signal-to-noise ratio in each physical channel to obtain an initial signal-to-noise ratio which is a second initial signal-to-noise ratio; the value of the second initial signal-to-noise ratio should be between the first initial signal-to-noise ratio and the sum of the first initial signal-to-noise ratio and the current signal-to-noise ratio variation value. I.e. by design of the second function, the value of the initial signal to noise ratio is changed, and the selected coding mode and other transmission parameters are changed. More specifically, in this embodiment, the current signal-to-noise ratio variation value not equal to zero includes two cases, greater than zero and less than zero. The second function comprises a minimum function for taking the minimum value of the estimated signal-to-noise ratio in each physical channel when the signal-to-noise ratio change value is larger than zero; the second function includes a maximum function that maximizes the estimated snr in each physical channel when the snr change is less than zero.
In summary, when the first function is an average value, the second function is a minimum value obtaining function of taking a minimum value when the current signal-to-noise ratio variation value is greater than zero; and when the current signal-to-noise ratio variation value is smaller than zero, the second function is a maximum value obtaining function taking the maximum value of the estimated signal-to-noise ratio of each physical channel.
In addition, the first function and the second function may also include a linear interpolation function and a nonlinear interpolation function, that is, the adjustment range or the change range may also be made finer by constructing the interpolation function.
Step S17 changes the initial value of the signal-to-noise ratio variation value: in this step, when the current snr change value is not equal to zero, the initial value of the original snr change value in the outer loop control is changed, so that the initial value of the new snr change value is the difference between the initial value of the original snr change value minus the second initial snr and the first initial snr. It should be noted that the initial value of the original signal to noise ratio variation value is zero.
As shown in fig. 2, the present invention further relates to a configuration apparatus for adaptively adjusting an uplink shared channel in encoding, which includes a signal-to-noise ratio obtaining module 11, a loading parameter setting module 12, a channel variation measuring module 13, a judging module 14, a loading parameter maintaining module 15, a loading parameter modifying module 16, and a signal-to-noise ratio variation value adjusting module 17. Wherein, the signal-to-noise ratio acquisition module 11: the method comprises the steps of obtaining estimated signal-to-noise ratios in each physical channel in a physical layer of an uplink shared channel; loading parameter setting module 12: the method comprises the steps of constructing a first function, calculating a plurality of obtained signal-to-noise ratios, and taking an obtained calculation result as a first initial signal-to-noise ratio as a loading parameter of inner loop control of an uplink shared channel; channel variation measurement module 13: the signal-to-noise ratio correction device is used for correcting the signal-to-noise ratio change values one by one according to the response signals returned by the outer ring in the set time to obtain the current signal-to-noise ratio change values; the judgment module 14: used for judging whether the current signal-to-noise ratio change value is equal to zero; load parameter maintenance module 15: the first function is used for maintaining as an initial signal-to-noise ratio calculation function of the inner loop control under the condition that the current signal-to-noise ratio change value is equal to zero; the loading parameter modification module 16: the first function is used for replacing the first function to serve as an initial signal-to-noise ratio calculation function of the inner loop control under the condition that the current signal-to-noise ratio change value is not equal to zero; the second function calculates the estimated signal-to-noise ratio obtained from each physical channel to obtain an initial signal-to-noise ratio which is a second initial signal-to-noise ratio; the value of the second initial signal-to-noise ratio is between the first initial signal-to-noise ratio and the sum of the first initial signal-to-noise ratio and the current signal-to-noise ratio variation value; signal-to-noise ratio variation value adjustment module 17: and the starting value of the signal to noise ratio change value in the outer loop control is changed when the current signal to noise ratio change value is not equal to zero, so that the starting value of the new signal to noise ratio change value is the difference between the current signal to noise ratio change value minus the second initial signal to noise ratio and the first initial signal to noise ratio.
In the above device of this embodiment, the channel change measurement module receives the response signal, starts from the start value of the signal-to-noise ratio change value according to the type of the received response signal, and increases or decreases the set signal-to-noise ratio adjustment value one by one according to the number of the response signals, so as to obtain the current signal-to-noise ratio change value; when an ACK response signal is received, adding a first set number of signal-to-noise ratio adjustment values to the current signal-to-noise ratio change value; when receiving a NACK response signal, the current signal-to-noise ratio variation value is reduced by a second set number of signal-to-noise ratio adjustment values. The aim of the setting is to ensure that the current signal-to-noise ratio change value is zero when the channel state is better and the preset requirement of the block error rate can be met, namely, the change amount of the ACK response signal and the NACK response signal to the signal-to-noise ratio change value is zero when the preset requirement of the block error rate is met.
In addition, in the present embodiment, the first function includes an average function that averages the estimated signal-to-noise ratios in the physical channels; the second function comprises a minimum function for taking the minimum value of the estimated signal-to-noise ratio in each physical channel when the current signal-to-noise ratio change value is larger than zero; the second function includes a maximum function for maximizing the estimated signal-to-noise ratio in each physical channel when the current signal-to-noise ratio variation is less than zero. Of course, if the adjustment amount needs to be further refined, different interpolation functions may be constructed as the first function and the second function.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (7)
1. The method for configuring the uplink shared channel in the adaptive adjustment coding is characterized by comprising the following steps:
obtaining estimated signal-to-noise ratio in each physical channel in the physical layer of the uplink shared channel;
constructing a first function to operate the obtained multiple estimated signal-to-noise ratios, and taking the obtained operation result as a first initial signal-to-noise ratio as a loading parameter of the inner loop control of the uplink shared channel;
correcting the signal-to-noise ratio change value one by one according to the response signal returned by the outer ring in the set time to obtain the current signal-to-noise ratio change value; the method specifically comprises the following steps: receiving response signals, starting from the initial value of the signal-to-noise ratio change value according to the type of the received response signals, and increasing or decreasing the set signal-to-noise ratio adjustment value one by one according to the number of the response signals to obtain the current signal-to-noise ratio change value; when an ACK response signal is received, adding a first set number of signal-to-noise ratio regulating values to the current signal-to-noise ratio changing value; when receiving a NACK response signal, reducing the current signal-to-noise ratio change value by a second set number of signal-to-noise ratio adjustment values; the first set number of signal-to-noise ratio adjustment values and the second set number of signal-to-noise ratio adjustment values are set so that the signal-to-noise ratio change value cannot change under the condition that the block error rate requirement is just met;
judging whether the current signal-to-noise ratio change value is zero, if so, maintaining the first function as an initial signal-to-noise ratio calculation function of inner ring control; if the current signal-to-noise ratio change value is not equal to zero, replacing the first function with a second function to serve as an initial signal-to-noise ratio calculation function of the inner loop control; the second function calculates the estimated signal-to-noise ratio obtained from each physical channel to obtain an initial signal-to-noise ratio which is a second initial signal-to-noise ratio; the value of the second initial signal-to-noise ratio is between the first initial signal-to-noise ratio and the sum of the first initial signal-to-noise ratio and the current signal-to-noise ratio variation value.
2. The configuration method according to claim 1, characterized by further comprising the step of:
and when the current signal-to-noise ratio change value is not equal to zero, changing the initial value of the signal-to-noise ratio change value in the outer loop control, so that the initial value of the new signal-to-noise ratio change value is the difference between the current signal-to-noise ratio change value minus the second initial signal-to-noise ratio and the first initial signal-to-noise ratio.
3. The configuration method according to claim 1, wherein the first function includes an average function that averages the estimated signal-to-noise ratios in the physical channels; the second function comprises a minimum function for taking the minimum value of the estimated signal-to-noise ratio in each physical channel when the current signal-to-noise ratio change value is larger than zero; and the second function comprises a maximum function for taking the maximum value of the estimated signal-to-noise ratio in each physical channel when the current signal-to-noise ratio change value is smaller than zero.
4. The configuration method according to claim 1, wherein the first function and the second function further include a linear interpolation function and a nonlinear interpolation function.
5. A device for adaptively adjusting configuration of an uplink shared channel in a code, comprising:
signal-to-noise ratio acquisition module: the method comprises the steps of obtaining estimated signal-to-noise ratios in each physical channel in a physical layer of an uplink shared channel;
and (5) loading a parameter setting module: the method comprises the steps of constructing a first function, calculating a plurality of obtained signal-to-noise ratios, and taking an obtained calculation result as a first initial signal-to-noise ratio as a loading parameter of inner loop control of an uplink shared channel;
channel variation measuring module: the signal-to-noise ratio correction device is used for correcting the signal-to-noise ratio change values one by one according to the response signals returned by the outer ring in the set time to obtain the current signal-to-noise ratio change values; the channel change measurement module receives response signals, starts from the initial value of the signal-to-noise ratio change value according to the type of the received response signals, and increases or decreases the set signal-to-noise ratio adjustment value one by one according to the number of the response signals to obtain the current signal-to-noise ratio change value; when an ACK response signal is received, adding a first set number of signal-to-noise ratio adjustment values to the current signal-to-noise ratio change value; when receiving a NACK response signal, reducing the current signal-to-noise ratio change value by a second set number of signal-to-noise ratio adjustment values; the first set number of signal-to-noise ratio adjustment values and the second set number of signal-to-noise ratio adjustment values are set so that the signal-to-noise ratio change value cannot change under the condition that the block error rate requirement is just met;
and a judging module: used for judging whether the current signal-to-noise ratio change value is equal to zero;
and a loading parameter maintenance module: the first function is used for maintaining the first function as an initial signal-to-noise ratio calculation function of the inner ring control under the condition that the current signal-to-noise ratio change value is equal to zero;
and (5) loading a parameter modification module: the first function is used for replacing the first function to serve as an initial signal-to-noise ratio calculation function of the inner ring control under the condition that the current signal-to-noise ratio change value is not equal to zero; the second function calculates the estimated signal-to-noise ratio obtained from each physical channel to obtain an initial signal-to-noise ratio which is a second initial signal-to-noise ratio; the value of the second initial signal-to-noise ratio is between the first initial signal-to-noise ratio and the sum of the first initial signal-to-noise ratio and the current signal-to-noise ratio variation value.
6. The configuration device according to claim 5, further comprising:
and the signal-to-noise ratio change value adjusting module: and the starting value of the signal to noise ratio change value in the outer loop control is changed when the current signal to noise ratio change value is not equal to zero, so that the starting value of the new signal to noise ratio change value is the difference between the current signal to noise ratio change value minus the second initial signal to noise ratio and the first initial signal to noise ratio.
7. The configuration device according to claim 5, wherein said first function comprises an average function that averages estimated signal-to-noise ratios in said physical channels; the second function comprises a minimum function for taking the minimum value of the estimated signal-to-noise ratio in each physical channel when the current signal-to-noise ratio change value is larger than zero; and the second function comprises a maximum function for taking the maximum value of the estimated signal-to-noise ratio in each physical channel when the current signal-to-noise ratio change value is smaller than zero.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801491A (en) * | 2011-05-27 | 2012-11-28 | 中兴通讯股份有限公司 | Link adaptation outer loop control method and system |
| RU2695953C1 (en) * | 2018-10-29 | 2019-07-29 | Дмитрий Сергеевич Калистратов | Method of estimating signal-to-noise ratio at input of receiving device for radio signal with digital amplitude modulation |
| CN113746766A (en) * | 2021-06-23 | 2021-12-03 | 西安交通大学 | Channel self-adaptive noise aggregation wireless secure transmission method |
| CN114665936A (en) * | 2021-08-30 | 2022-06-24 | 浪潮软件科技有限公司 | Method, device and equipment for switching uplink waveform and readable storage medium |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1148080C (en) * | 2001-06-28 | 2004-04-28 | 华为技术有限公司 | Method for estimating channel quality |
| TWI257220B (en) * | 2005-03-25 | 2006-06-21 | Ind Tech Res Inst | Cross-layer rate adaptation mechanism for WLAN |
| CA2659878C (en) * | 2006-08-09 | 2013-10-22 | Lg Electronics Inc. | Method of estimating signal-to-noise ratio, method of adjusting feedback information transmission, adaptive modulation and coding method using the same, and transceiver thereof |
| CN101414893B (en) * | 2007-10-16 | 2011-05-04 | 大唐移动通信设备有限公司 | Method and system for correcting channel quality indication |
| CN101753255B (en) * | 2008-12-18 | 2013-10-23 | 雷凌科技股份有限公司 | Velocity adaptation method for communication system |
| CN101753177B (en) * | 2009-12-25 | 2015-06-24 | 西南交通大学 | Signal-to-noise radio estimation method based on response feedback control signaling |
| CN102523074B (en) * | 2011-12-22 | 2015-04-01 | 北京北方烽火科技有限公司 | Adaptive modulation and coding method for wireless communication system and adaptive modulation and coding device for same |
| US11533264B2 (en) * | 2015-09-07 | 2022-12-20 | Apple Inc. | Device and method for adaptive link adaptation |
| CN109818727B (en) * | 2018-02-24 | 2020-06-26 | 华为技术有限公司 | Method and device for sending uplink control channel |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801491A (en) * | 2011-05-27 | 2012-11-28 | 中兴通讯股份有限公司 | Link adaptation outer loop control method and system |
| RU2695953C1 (en) * | 2018-10-29 | 2019-07-29 | Дмитрий Сергеевич Калистратов | Method of estimating signal-to-noise ratio at input of receiving device for radio signal with digital amplitude modulation |
| CN113746766A (en) * | 2021-06-23 | 2021-12-03 | 西安交通大学 | Channel self-adaptive noise aggregation wireless secure transmission method |
| CN114665936A (en) * | 2021-08-30 | 2022-06-24 | 浪潮软件科技有限公司 | Method, device and equipment for switching uplink waveform and readable storage medium |
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