CN113824531A

CN113824531A - Method and device for generating coding rate, base station and storage medium

Info

Publication number: CN113824531A
Application number: CN202010557818.9A
Authority: CN
Inventors: 陈超; 朱原; 张航; 郭华; 郭宋
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Group Liaoning Co Ltd
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Group Liaoning Co Ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2021-12-21
Anticipated expiration: 2040-06-18
Also published as: CN113824531B

Abstract

The embodiment of the invention provides a method and a device for generating a coding rate, a base station and a storage medium. In the technical scheme provided by the embodiment of the invention, a coding format, a channel quality indication and an initial block error rate are obtained; generating a quality index according to the channel quality indication and the initial block error rate; matching a corresponding matching gear according to the quality index through a matching gear table corresponding to the generated coding format; generating a speed reduction index according to the matched gear and the set configuration gear through a speed reduction threshold configuration algorithm; and setting the current coding rate according to the speed reduction index, thereby effectively improving the voice call quality of the user.

Description

Method and device for generating coding rate, base station and storage medium

[ technical field ] A method for producing a semiconductor device

The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, a base station, and a storage medium for generating a coding rate.

[ background of the invention ]

Voice over Long-Term Evolution (VoLTE) is a feature that it has an Internet Protocol (IP) bearer, higher coding rate, lower connection delay, and higher communication quality. The quality of a wireless environment has a great influence on the voice quality of the VoLTE, a traditional scheme for guaranteeing the voice quality pays attention to the Reference Signal Received Power (RSRP) of a user, but the RSRP of a cell in a current network cannot completely represent the quality of the wireless environment of the user, the voice quality of the VoLTE is possibly deteriorated due to interference, load and the like in an area with good network coverage, and the traditional scheme cannot effectively improve the voice call quality of the user.

[ summary of the invention ]

In view of this, embodiments of the present invention provide a method, an apparatus, a base station, and a storage medium for generating a coding rate, which can effectively improve the voice call quality of a user.

In one aspect, an embodiment of the present invention provides a method for generating a coding rate, where the method includes:

acquiring a coding format, a channel quality indicator and an initial block error rate;

generating a quality index according to the channel quality indication and the initial block error rate;

matching a corresponding matching gear according to the quality index through a matching gear table corresponding to the generated coding format;

generating a speed reduction index according to the matched gear and the set configuration gear through a speed reduction threshold configuration algorithm;

and setting the current coding rate according to the speed reduction index.

Optionally, the level of the channel quality indication is multiple; generating a quality index according to the channel quality indication and the initial block error rate, wherein the quality index comprises:

calculating the channel quality ratio of a designated level in the plurality of levels according to the channel quality indications of the plurality of levels;

and generating a quality index according to the channel quality ratio, the initial block error rate, the set first weight and the set second weight.

Optionally, before the matching gear table corresponding to the generated encoding format is matched according to the quality index, the method further includes:

acquiring a standard gear table, wherein the standard gear table comprises a code rate gear mark, a standard proportion interval and a standard block error rate interval;

generating a standard quality index according to the right value of the standard proportion interval, the right value of the standard block error rate interval, the first weight and the second weight;

rounding the standard quality index to generate a rounding index;

and generating a matching gear table corresponding to the coding format according to the code rate gear mark, the standard quality index, the rounding index and the set matching gear.

Optionally, the standard gear table includes a standard encoding rate, and before generating the speed reduction index according to the matched gear and the set configuration gear by using a speed reduction threshold configuration algorithm, the method further includes:

acquiring a code rate gear mark corresponding to the matched gear;

matching a standard coding rate from a standard gear table according to the code rate gear mark;

judging whether the standard coding rate is the maximum coding rate or not;

and if the standard coding rate is judged not to be the maximum coding rate, continuing executing the step of generating a speed reduction index according to the matched gear and the set configuration gear by using a speed reduction threshold configuration algorithm.

Optionally, the encoding format comprises adaptive multi-rate wideband encoding or adaptive multi-rate narrowband encoding; generating a deceleration index according to the matched gear and the set configuration gear by a deceleration threshold configuration algorithm, wherein the deceleration index comprises the following steps:

when the coding format comprises adaptive multi-rate wideband coding, the coding format is expressed by formula

Calculating the matched gear and the configured gear to generate a deceleration Index, wherein Index _ i is the deceleration Index of the matched gear i, and n is the configured gear;

when the coding format comprises adaptive multi-rate narrowband coding, the coding format is expressed by formula

And calculating the matched gear and the configured gear to generate a deceleration Index, wherein Index _ j is the deceleration Index of the matched gear j, and n is the configured gear.

Optionally, the standard gear table comprises a standard encoding rate; setting the current coding rate according to the speed reduction index, comprising:

matching and obtaining a rounding index from the matching gear table according to the speed reduction index;

judging whether the quality index is greater than or equal to the rounding index;

if the quality index is larger than or equal to the rounding index, matching a standard coding rate according to the speed reduction index, the standard gear table and the matching gear table;

the standard coding rate is set to the current coding rate.

Optionally, the method further comprises:

if the quality index is smaller than the rounding index, the steps of obtaining the coding format, the channel quality index and the initial block error rate are continuously executed.

In another aspect, an embodiment of the present invention provides an apparatus for generating a coding rate, including:

a first obtaining unit, configured to obtain a coding format, a channel quality indicator, and an initial block error rate;

a first generating unit, configured to generate a quality indicator according to the channel quality indicator and the initial block error rate;

the first matching unit is used for matching a corresponding matching gear according to the quality index through the generated matching gear table corresponding to the coding format;

the second generation unit is used for generating a speed reduction index according to the matched gear and the set configuration gear through a speed reduction threshold configuration algorithm;

and the setting unit is used for setting the current coding rate according to the speed reduction index.

On the other hand, an embodiment of the present invention provides a storage medium, where the storage medium includes a stored program, and when the program runs, a device in which the storage medium is located is controlled to execute the above coding rate generation method.

In another aspect, an embodiment of the present invention provides a base station, including a memory and a processor, where the memory is used to store information including program instructions, and the processor is used to control execution of the program instructions, where the program instructions are loaded and executed by the processor to implement the above coding rate generation method.

In the scheme of the embodiment of the invention, a coding format, a channel quality indicator and an initial block error rate are obtained; generating a quality index according to the channel quality indication and the initial block error rate; matching a corresponding matching gear according to the quality index through a matching gear table corresponding to the generated coding format; generating a speed reduction index according to the matched gear and the set configuration gear through a speed reduction threshold configuration algorithm; and setting the current coding rate according to the speed reduction index, thereby effectively improving the voice call quality of the user.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a flowchart of a method for generating a coding rate according to an embodiment of the present invention;

fig. 2 is a flowchart of another method for generating a coding rate according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an apparatus for generating a coding rate according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a base station according to an embodiment of the present invention.

[ detailed description ] embodiments

For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.

It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should be understood that although the terms first, second, etc. may be used to describe the set thresholds in the embodiments of the present invention, the set thresholds should not be limited to these terms. These terms are used only to distinguish the set thresholds from each other. For example, the first set threshold may also be referred to as the second set threshold, and similarly, the second set threshold may also be referred to as the first set threshold, without departing from the scope of embodiments of the present invention.

Fig. 1 is a flowchart of a method for generating a coding rate according to an embodiment of the present invention, as shown in fig. 1, the method includes:

step 101, obtaining a coding format, a channel quality indication and an initial block error rate.

And 102, generating a quality index according to the channel quality indicator and the initial block error rate.

And 103, matching a corresponding matching gear according to the quality index through the generated matching gear table corresponding to the coding format.

And 104, generating a speed reduction index according to the matched gear and the set configuration gear through a speed reduction threshold configuration algorithm.

And 105, setting the current coding rate according to the speed reduction index.

In the technical scheme provided by the embodiment of the invention, a coding format, a channel quality indication and an initial block error rate are obtained; generating a quality index according to the channel quality indication and the initial block error rate; matching a corresponding matching gear according to the quality index through a matching gear table corresponding to the generated coding format; generating a speed reduction index according to the matched gear and the set configuration gear through a speed reduction threshold configuration algorithm; and setting the current coding rate according to the speed reduction index, thereby effectively improving the voice call quality of the user.

Fig. 2 is a flowchart of another method for generating a coding rate according to an embodiment of the present invention, as shown in fig. 2, the method includes:

step 201, acquiring a coding format, a Channel Quality Indication (CQI) and an Initial Block Error Rate (IBLER). The number of CQI levels is plural.

In this embodiment, each step is performed by the base station.

In this embodiment, a Voice over Long-Term Evolution (VoLTE) service mainly uses an Adaptive Multi-Rate (AMR) coding scheme. The AMR coding mode comprises two coding formats, namely Adaptive Multi-Rate-Wideband coding (AMR-WB for short) and Adaptive Multi-Rate-narrowband coding (AMR-NB for short). Both of the above coding formats can support multiple speech rates, where AMR _ WB can use 9 speech rate levels and AMR _ NB can use 8 speech rate levels.

In this embodiment, the base station and the user terminal can establish a voice call in the connection establishment party, and obtain the encoding format from the negotiation process between the base station and the user terminal before the connection establishment.

In this embodiment, the CQI has 16 levels in total from 0 to 15. Specifically, the user terminal measures the radio channel through a Reference Signal (RS) to obtain the level of the CQI, where the higher the level, the better the channel quality, the higher the available modulation order, and the higher the coding rate. The embodiment of the invention measures the current channel quality by calculating the ratio of the CQI grades from 0 to 4, and the higher the ratio is, the worse the channel quality is.

In this embodiment, IBLER is a ratio of the number of data blocks with errors after a radio link control sub-layer (RLC) layer counts Cyclic Redundancy Check (CRC) to the total number of data blocks, and in the embodiment of the present invention, an uplink IBLER based on a QoS Class Identifier (QCI) of 1 is used alone to measure the current local service quality.

Step 202, according to the CQI of the plurality of levels, calculates the channel quality ratio of a given level among the plurality of levels.

In this embodiment, the designated level may be set according to actual conditions.

As an alternative, the CQI is 16 levels, respectively 0 to 15 levels, and is assigned to levels of 0 to 4 for a total of 5 levels. Counting total quality indicators of 16 grades and partial quality indicators from 0 grade to 4 grade; the partial quality indicator is divided by the total quality indicator to calculate the channel quality ratio of 0 level to 4 level in 16 levels.

And 203, generating a quality index (CQER) according to the channel quality ratio, the IBLER, the set first weight and the set second weight.

In this embodiment, step 203 specifically includes:

step 2031, the channel quality ratio is multiplied by the first weight, and a first multiplication result is calculated.

In this embodiment, the first weight may be set according to actual conditions. As an alternative, the first weight is set to 0.3.

Step 2032, multiply IBLER by the second weight to calculate a second multiplication result.

In this embodiment, the second weight may be set according to actual conditions. As an alternative, the second weight is set to 0.7.

Step 2033, add the first multiplication result and the second multiplication result to calculate CQER.

And 204, acquiring a standard gear table, wherein the standard gear table comprises a code rate gear mark, a standard proportion interval and a standard IBLER interval.

In this embodiment, the standard gear table further includes a standard encoding rate

In this embodiment, if the coding format is AMR _ WB, the current network cell channel quality ratio and IBLER distribution are matched, and the current network cell channel quality ratio and IBLER distribution are solidified into 9 empirical intervals according to AMR _ WB; if the coding format is AMR _ NB, the channel quality ratio and the IBLER distribution of the current network cell are matched, and the current network cell and the IBLER distribution are solidified into 8 empirical intervals according to the AMR _ NB.

For example, a standard gear table in the AMR _ WB format is shown in table 1.

TABLE 1

For example, a standard gear table in the AMR _ NB format is shown in table 2.

TABLE 2

And step 205, generating a standard CQER according to the right value of the standard duty ratio interval, the right value of the standard IBLER interval, the first weight and the second weight.

In this embodiment, the right value of the standard proportion interval is the value of the right end point of the standard proportion interval. For example, if the standard proportion interval is (1%, 3%), the right value is 3%.

Specifically, the right value of the standard proportion interval is multiplied by the first weight to obtain a third phase multiplication result; multiplying the right value of the standard IBLER interval by the second weight to obtain a fourth multiplication result; and adding the third multiplication result and the fourth multiplication result to generate a standard CQER.

And step 206, rounding the standard CQER to generate a rounding index.

Specifically, the standard CQER is rounded to generate an rounding index.

For example: the standard CQER is 1.6%, and rounding is carried out to obtain a rounding index of 2%.

And step 207, generating a matching gear table corresponding to the coding format according to the code rate gear mark, the standard CQER, the rounding index and the set matching gear.

For example, according to the contents in table 1, a matching gear table corresponding to AMR _ WB is generated as shown in table 3.

TABLE 3

Code rate gear marking	Standard CQER	Get the whole index	Matching gear
				V0	≤0.65％	1％	C0
V1	1.60％	2％	C1
				V2	3.30％	3％	C2
V4	5.30％	5％	C3
				V4	7.00％	7％	C4
V5	8.70％	9％	C5
				V6	11.10％	11％	C6
V7	13.50％	14％	C7
				V8	>13.50％	15％	C8

For example, according to the contents of table 2, a matching gear table corresponding to AMR _ NB is generated as shown in table 4.

TABLE 4

Code rate gear marking	Standard CQER	Get the whole index	Matching gear
				V0	≤0.65％	1％	C0
V1	1.60％	2％	C1
				V2	3.30％	3％	C2
V4	5.30％	5％	C3
				V4	7.00％	7％	C4
V5	8.70％	9％	C5
				V6	11.10％	11％	C6
V7	>11.10％	12％	C7

And step 208, matching a corresponding matching gear according to the CQER through the generated matching gear table corresponding to the coding format.

In this embodiment, each matching gear corresponds to a standard CQER interval, the value of the standard CQER is the right value of the standard CQER interval, and the left value of the standard CQER interval is the right value of the last matching gear.

For example: the CQER is 3%, less than 3.30% and greater than 1.60%, and the matched gear is C2.

And step 209, acquiring a code rate gear mark corresponding to the matched gear.

In this embodiment, the code rate gear mark corresponding to the matched gear is obtained from the matched gear table.

For example: the matching gear table is shown in table 3, the matching gear is C2, and the corresponding code rate gear is labeled as V2.

And step 210, matching a standard coding rate from a standard gear table according to the code rate gear mark.

For example, as shown in table 1, the code rate step is labeled V2, and a standard encoding rate of 19.85Kbps is matched from the standard step table.

Step 211, determining whether the standard coding rate is the maximum coding rate, if so, ending the process; if not, go to step 212.

In this step, if the standard coding rate is judged to be the maximum coding rate, the current coding rate is maximum, no adjustment is needed, and the process is ended; if the standard encoding rate is not the maximum encoding rate, indicating that the current rate needs to be adjusted, the process continues to step 212.

As an alternative, the maximum coding rate is 23.85 Kbps.

And 212, generating a speed reduction index according to the matched gear and the set configuration gear through a speed reduction threshold configuration algorithm.

In this embodiment, the design principle of the speed reduction threshold configuration algorithm follows the principle of "reducing two ends, dispersing as much as possible, preferably high, and not low". Wherein, reduce two: if the encoding rate is too close to the highest encoding rate, the speed reduction effect is not obvious, the perception cannot be guaranteed, and if the encoding rate is too close to the latest low encoding rate, the speed reduction amplitude is too large, so that the perception is possibly sacrificed. Dispersing as much as possible: the difference of different speed reduction configurations can be increased, and the span and the effect of speed reduction are increased. Preferably high and not low: and in the speed reduction threshold, the high code rate is preferably used as far as possible on the basis of meeting the speed reduction configuration so as to ensure the quality.

Specifically, when the coding format is AMR _ WB, by formula

And calculating the matched gear and the configured gear to generate a deceleration Index, wherein Index _ i is the deceleration Index of the matched gear i, and n is the configured gear.

In this embodiment, for the AMR _ WB coding scheme, n is greater than or equal to 1 and less than or equal to 9 and 1 and 8, and the reason for subtracting 1 is that the maximum coding rate is not in the alternative speed reduction scheme.

Specifically, when the coding format is AMR _ NB, by formula

In this embodiment, for the AMR _ NB coding scheme, n is greater than or equal to 1 and less than or equal to 8 and 1 is equal to 7, and the reason for subtracting 1 is that the maximum coding rate is not in the alternative speed reduction scheme.

Further, considering that the corresponding coding rate should be increased after the environmental quality and the service quality of the ue improve, but in order to avoid ping-pong between speed reduction and speed increase, a certain guard interval needs to be set, an interval parameter Coffset is set, and a speed increase threshold is generated according to the interval parameter and a rounding index corresponding to the speed reduction index. The interval parameter can be set according to actual conditions, and the value range is between 0 and 1. As an alternative, Coffset is set to 30%.

Specifically, the interval parameter and the rounding index corresponding to the speed reduction index are calculated by a formula Ri ═ Ci- | Coffset |, so as to generate the speed increase threshold. Ri is the ith gear speed-up threshold, Coffset is an interval parameter, and Ci is a rounding index corresponding to the speed-down index.

For example: setting the configuration gear n to 3, Coffset to 30%, according to the speed reduction threshold configuration algorithm, Index _1 to 2, Index _2 to 4, Index _3 to 6 can be calculated, so as to calculate the corresponding rounding Index C2 to 3%, C4 to 7%, and C6 to 11%, the speed increase thresholds are R2 to C2 to C2 to 30% | 2%, R4 to C4 to | C4 to 30% | 5%, and R6 to C6 to | C6 to 30% | 8%. When CQER is more than or equal to 3 percent, the speed is reduced, namely: setting the encoding rate to 19.85 Kbps; when CQER is less than or equal to 2%, raising the speed, namely: the coding rate is set to be 23.85Kbps, 1% of guard intervals exist between 2% and 3%, and when the CQER value is between 2% and 3%, speed increasing or speed reducing processing is not performed, so that frequent calculation and configuration are avoided, and the load of a base station and a user terminal is increased. Similarly, when CQER is more than or equal to 7%, 15.85Kbps coding speed reduction is executed, and when CQER is less than or equal to 5%, 19.85Kbps speed increase is executed; when CQER is more than or equal to 11%, executing 12.65Kbps encoding speed reduction, and when CQER is less than or equal to 8%, executing 15.85Kbps speed increase.

In the embodiment, two encoding formats of AMR _ WB and AMR _ NB can be distinguished, so that automatic speed limiting can be realized more accurately, user perception is improved, the condition that speed reduction threshold is unreasonable due to insufficient experience of engineers can be avoided, and accuracy is further improved.

And step 213, matching the rounding index from the matching gear table according to the speed reduction index.

For example: if the deceleration Index _2 is 4, the rounding Index corresponding to the deceleration Index is matched from the matching gear table to be 7%.

Step 214, determining whether CQER is greater than or equal to the rounding index, if yes, go to step 215; if not, go to step 201.

In this embodiment, the speed reduction index includes at least one.

Specifically, when the speed reduction index is one and CQER is greater than or equal to the rounding index, step 215 is executed to perform speed reduction; when the speed reduction index is one and the CQER is smaller than the rounding index, the speed reduction is not needed, and step 201 is continued.

When the number of the speed reduction indexes is two, the number of the corresponding rounding indexes is two, the CQER and the rounding indexes are compared, and comparison can be performed from a low gear one by one. If the CQER is smaller than the rounding index of the lower gear, the speed reduction is not needed, and step 201 is continuously executed; if CQER is larger than or equal to the rounding index of the lower gear, comparing the CQER with the rounding index of the higher gear; if the CQER is smaller than the rounding index of the higher gear, acquiring a standard coding rate corresponding to the rounding index of the lower gear, and setting the standard coding rate as the current coding rate of the user equipment; and if the CQER is greater than or equal to the rounding index of the higher gear, acquiring the standard coding rate corresponding to the rounding index of the higher gear, setting the standard coding rate as the current coding rate of the user equipment, and starting pilot frequency switching measurement.

When the speed reduction indexes are three or more, the corresponding rounding indexes are three or more, the CQER and the rounding indexes are compared, and comparison can be performed one by one from a low gear. If the CQER is smaller than the rounding index of the lowest gear, the speed reduction is not needed, and step 201 is continuously executed; if CQER is larger than or equal to the rounding index of the lowest gear, comparing the CQER with the rounding index of the middle gear; if the CQER is smaller than the rounding index of the middle gear, acquiring a standard coding rate corresponding to the rounding index of the lowest gear, and setting the standard coding rate as the current coding rate of the user equipment; if CQER is greater than or equal to the rounding index of the middle gear, comparing the CQER with the rounding index of the highest gear, if CQER is smaller than the rounding index of the highest gear, acquiring a standard coding rate corresponding to the rounding index of the middle gear, and setting the standard coding rate as the current coding rate of the user equipment; and if the CQER is greater than or equal to the rounding index of the highest gear, acquiring a standard coding rate corresponding to the rounding index of the highest gear, setting the standard coding rate as the current coding rate of the user equipment, and starting inter-frequency switching measurement and inter-system switching measurement.

Wherein the inter-frequency handover measurement comprises handover of the user equipment to other inter-frequency cells. Before starting pilot frequency switching measurement, judging whether the CQER is greater than a pilot frequency trigger threshold or not; if the CQER is judged to be larger than the pilot frequency triggering threshold, pilot frequency switching measurement is started for switching the user equipment to other pilot frequency cells subsequently so as to avoid quality degradation and improve conversation perception; and if the CQER is judged to be less than or equal to the pilot frequency triggering threshold, the pilot frequency switching measurement cannot be started. The setting of the pilot frequency trigger threshold comprises a plurality of setting modes. As an optional mode, the rounding index of the higher gear is automatically used as the pilot frequency trigger threshold.

Wherein the inter-system handover measurement comprises handing over the user equipment to other inter-system cells. Before starting the inter-system switching measurement, judging whether the CQER is greater than an inter-system triggering threshold or not; if the CQER is judged to be larger than the inter-system triggering threshold, inter-system handover measurement is started for switching the user equipment to other inter-system cells subsequently, so that quality degradation is avoided, and call perception is improved; and if the CQER is judged to be less than or equal to the inter-system triggering threshold, the inter-system switching measurement cannot be started. The setting of the inter-system trigger threshold comprises a plurality of setting modes. As an optional mode, the rounding index of the highest gear is automatically used as the trigger threshold of the different system.

And step 215, matching the standard coding rate according to the speed reduction index, the standard gear table and the matching gear table.

For example: the standard gear table is shown in table 1, the matching gear table is shown in table 3, the speed reduction Index is Index _1 ═ 2, and a code rate gear position mark V2 can be matched from the matching gear table; and matching the standard coding rate of 19.85Kbps from the standard gear table according to the code rate gear mark V2.

Step 216, the standard coding rate is set to the current coding rate.

In the embodiment, the standard coding rate is set as the coding rate, and the current coding rate is adjusted to improve the current coding rate, improve the user communication quality and improve the user perception.

In the technical scheme of the method for generating the coding rate provided by the embodiment of the invention, a coding format, a channel quality indicator and an initial block error rate are obtained; generating a quality index according to the channel quality indication and the initial block error rate; matching a corresponding matching gear according to the quality index through a matching gear table corresponding to the generated coding format; generating a speed reduction index according to the matched gear and the set configuration gear through a speed reduction threshold configuration algorithm; and setting the current coding rate according to the speed reduction index, thereby effectively improving the voice call quality of the user.

Fig. 3 is a schematic structural diagram of an apparatus for generating a coding rate according to an embodiment of the present invention, where the apparatus is configured to execute the method for generating a coding rate, and as shown in fig. 3, the apparatus includes: a first acquisition unit 11, a first generation unit 12, a first matching unit 13, a second generation unit 14, and a setting unit 15.

The first obtaining unit 11 is configured to obtain a coding format, a channel quality indicator, and an initial block error rate.

The first generating unit 12 is configured to generate a quality indicator according to the channel quality indicator and the initial block error rate.

The first matching unit 13 is configured to match a corresponding matching gear according to the quality index through the generated matching gear table corresponding to the encoding format.

The second generating unit 14 is configured to generate a speed reduction index according to the matched gear and the set configuration gear through a speed reduction threshold configuration algorithm.

The setting unit 15 is configured to set the current coding rate according to the speed reduction index.

In this embodiment of the present invention, the first generating unit 12 is specifically configured to calculate, according to the channel quality indicators of the multiple levels, a channel quality ratio of a specified level in the multiple levels; and generating a quality index according to the channel quality ratio, the initial block error rate, the set first weight and the set second weight.

In the embodiment of the present invention, the apparatus further includes: a second acquisition unit 16, a third generation unit 17, a fourth generation unit 18 and a fifth generation unit 19.

The second obtaining unit 16 is configured to obtain a standard gear table, where the standard gear table includes a code rate gear mark, a standard proportion interval, and a standard block error rate interval.

The third generating unit 17 is configured to generate a standard quality indicator according to the right value of the standard proportion interval, the right value of the standard block error rate interval, the first weight, and the second weight.

The fourth generating unit 18 is configured to round the standard quality index to generate a round index.

The fifth generating unit 19 is configured to generate a matching gear table corresponding to the coding format according to the code rate gear mark, the standard quality index, the rounding index, and the set matching gear.

In the embodiment of the present invention, the apparatus further includes a third obtaining unit 20, a second matching unit 21, and a determining unit 22.

The third obtaining unit 20 is configured to obtain a code rate gear mark corresponding to the matched gear.

The second matching unit 21 is configured to match a standard coding rate from the standard gear table according to the code rate gear mark.

The judging unit 22 is configured to judge whether the standard coding rate is the maximum coding rate; if the standard coding rate is judged not to be the maximum coding rate, the second generating unit 14 is triggered to continue executing the step of generating the speed reduction index according to the matched gear and the set configuration gear by the speed reduction threshold configuration algorithm.

In the embodiment of the present invention, the second generating unit 14 is specifically configured to formulate when the coding format includes adaptive multi-rate wideband coding

Calculating the matched gear and the configured gear to generate a deceleration Index, wherein Index _ i is the deceleration Index of the matched gear i, and n is the configured gear; when the coding format comprises adaptive multi-rate narrowband coding, the coding format is expressed by formula

In the embodiment of the present invention, the setting unit 15 is specifically configured to match a rounding index from the matching gear table according to the speed reduction index; judging whether the quality index is greater than or equal to the rounding index; if the quality index is larger than or equal to the rounding index, matching a standard coding rate according to the speed reduction index, the standard gear table and the matching gear table; the standard coding rate is set to the current coding rate.

In this embodiment of the present invention, the setting unit 15 is further specifically configured to trigger the first obtaining unit 11 to continue to perform the steps of obtaining the coding format, the channel quality indicator, and the initial block error rate if it is determined that the quality indicator is smaller than the rounding indicator.

An embodiment of the present invention provides a storage medium, where the storage medium includes a stored program, where, when the program runs, a device on which the storage medium is located is controlled to execute each step of the above-mentioned embodiment of the encoding rate generation method, and for a specific description, reference may be made to the above-mentioned embodiment of the encoding rate generation method.

An embodiment of the present invention provides a base station, including a memory and a processor, where the memory is used to store information including program instructions, and the processor is used to control execution of the program instructions, and the program instructions are loaded and executed by the processor to implement the steps of the embodiment of the coding rate generation method.

Fig. 4 is a schematic diagram of a base station according to an embodiment of the present invention. As shown in fig. 4, the base station 30 of this embodiment includes: the processor 31, the memory 32, and the computer program 33 stored in the memory 32 and capable of running on the processor 31, where the computer program 33 is executed by the processor 31 to implement the generation method applied to the coding rate in the embodiment, and in order to avoid repetition, details are not repeated herein. Alternatively, the computer program is executed by the processor 31 to implement the functions of each model/unit in the encoding rate generating apparatus in the embodiment, which are not repeated herein to avoid repetition.

The base station 30 includes, but is not limited to, a processor 31, a memory 32. Those skilled in the art will appreciate that fig. 4 is merely an example of a base station 30 and does not constitute a limitation of the base station 30 and may include more or less components than shown, or combine certain components, or different components, e.g., the base station may also include input output devices, network access devices, buses, etc.

The processor 31 may be a Central Processing Unit (CPU), other general purpose processor, a Digital signal processor (DP), an Application specific Integrated Circuit (AIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 32 may be an internal storage unit of the base station 30, such as a hard disk or a memory of the base station 30. The memory 32 may also be an external storage device of the base station 30, such as a plug-in hard disk provided on the base station 30, a smart Memory Card (MC), a secure Digital (D) Card, a flash memory Card (Flah Card), and the like. Further, the memory 32 may also include both internal and external memory units of the base station 30. The memory 32 is used for storing computer programs and other programs and data required by the base station. The memory 32 may also be used to temporarily store data that has been output or is to be output.

In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions in actual implementation, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A method for generating a code rate, the method comprising:

matching a corresponding matching gear according to the quality index through the generated matching gear table corresponding to the coding format;

and setting the current coding rate according to the speed reduction index.

2. The method of claim 1, wherein the channel quality indicator has a plurality of levels; generating a quality indicator according to the channel quality indicator and the initial block error rate includes:

calculating the channel quality ratio of a designated level in a plurality of levels according to the channel quality indicators of the plurality of levels;

and generating the quality index according to the channel quality ratio, the initial block error rate, the set first weight and the set second weight.

3. The method according to claim 2, before the matching gear table corresponding to the generated encoding format matches a corresponding matching gear according to the quality index, further comprising:

rounding the standard quality index to generate a rounding index;

4. The method of claim 3, wherein the standard gear table comprises a standard encoding rate, and further comprising, before the generating a speed reduction index according to the matched gear and the set configuration gear by the speed reduction threshold configuration algorithm:

acquiring the code rate gear mark corresponding to the matched gear;

matching the standard coding rate from the standard gear table according to the code rate gear mark;

judging whether the standard coding rate is the maximum coding rate or not;

and if the standard coding rate is judged not to be the maximum coding rate, continuing executing the speed reduction threshold configuration algorithm, and generating a speed reduction index according to the matched gear and the set configuration gear.

5. The method of claim 1, wherein the encoding format comprises adaptive multi-rate wideband encoding or adaptive multi-rate narrowband encoding; the generating a deceleration index according to the matched gear and the set configuration gear by a deceleration threshold configuration algorithm comprises:

when said coding format comprises adaptive multi-rate wideband coding, by formula

when the coding format comprises adaptive multi-rate narrowband coding, passing through a formula

6. The method of claim 3, wherein the standard gear table comprises a standard code rate; the setting of the current coding rate according to the speed reduction index includes:

matching the rounding index from the matching gear table according to the speed reduction index;

if the quality index is judged to be larger than or equal to the rounding index, matching the standard coding rate according to the speed reduction index, the standard gear table and the matched gear table;

setting the standard coding rate as a current coding rate.

7. The method of claim 6, further comprising:

and if the quality index is smaller than the rounding index, continuing to execute the steps of acquiring the coding format, the channel quality index and the initial block error rate.

8. An apparatus for generating a code rate, the apparatus comprising:

9. A storage medium, characterized in that the storage medium comprises a stored program, wherein when the program runs, a device in which the storage medium is located is controlled to execute the encoding rate generation method according to any one of claims 1 to 7.

10. A base station comprising a memory for storing information including program instructions and a processor for controlling the execution of the program instructions, wherein the program instructions when loaded and executed by the processor implement the method of generating an encoding rate of any one of claims 1 to 7.