CN115208511B - Configuration method and device of modulation and coding strategy and electronic equipment - Google Patents

Configuration method and device of modulation and coding strategy and electronic equipment Download PDF

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Publication number
CN115208511B
CN115208511B CN202210594758.7A CN202210594758A CN115208511B CN 115208511 B CN115208511 B CN 115208511B CN 202210594758 A CN202210594758 A CN 202210594758A CN 115208511 B CN115208511 B CN 115208511B
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mcs
current
determining
value
target
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CN115208511A (en
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王文
肖赵斌
田炜
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Inspur Communication Technology Co Ltd
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Inspur Communication Technology Co Ltd
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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
    • H04L1/0016—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy involving special memory structures, e.g. look-up tables
    • 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
    • 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
    • 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
    • H04L1/0013—Rate matching, e.g. puncturing or repetition of code symbols

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a method and a device for configuring a modulation and coding strategy and electronic equipment, wherein the method comprises the following steps: determining a current Modulation and Coding Strategy (MCS) table based on an indication field in uplink and downlink control information; determining a target MCS table based on the current MCS table and the current unrestricted MCS value; and switching the current MCS table into the target MCS table, and determining a modulation scheme and a code rate based on the target MCS table. According to the configuration method of the modulation and coding strategy, the MCS table is determined according to the indication field in the uplink and downlink control information and is switched, so that signaling conflict can be avoided, meanwhile, the target MCS table to be switched is determined according to the current unrestricted MCS value, the modulation and coding strategy is timely adjusted, and the communication efficiency can be effectively improved.

Description

Configuration method and device of modulation and coding strategy and electronic equipment
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for configuring a modulation and coding policy, and an electronic device.
Background
With the development and variation of mobile communication service requirements, various organizations such as 3GPP begin to research new wireless communication systems, such as 5G NR (5 th Generation New RAT, fifth generation new radio access technology) systems, for future mobile communication systems. In 5G NR systems, one important requirement is low latency and highly reliable communication.
In the current 5G NR system, a base station dynamically adjusts parameters such as a coding mode and a modulation mode at a transmitting end based on an AMC (adaptive modulation and coding) algorithm of an uplink and a downlink, so that the system provides a data rate as high as possible under the same bandwidth. Based on the AMC algorithm, the base station may select a suitable modulation and coding scheme after receiving the channel quality indication reported by the user equipment, i.e. select a suitable MCS index number from the MCS (Modulation and Coding Scheme, modulation and coding strategy) table.
In the related art, when the unrestricted MCS value is greater than the highest value, the highest MCS value of the current MCS table is used for scheduling, or when the unrestricted MCS value is less than the lowest MCS value of the current table, the lowest MCS value of the current table is used for scheduling, and at this time, the error rate is easy to be higher or the peak rate is slightly lower, so that the communication efficiency is reduced.
Disclosure of Invention
The invention provides a configuration method and device of a modulation and coding strategy, electronic equipment, a device and the electronic equipment, which are used for solving the defect of low communication efficiency in the prior art and realizing the effect of reasonably determining the modulation and coding strategy to improve the communication efficiency.
The invention provides a configuration method of a modulation and coding strategy, which comprises the following steps:
Determining a current Modulation and Coding Strategy (MCS) table based on an indication field in uplink and downlink control information;
Determining a target MCS table based on the current MCS table and the current unrestricted MCS value;
switching the current MCS table into the target MCS table, and determining a modulation scheme and a code rate based on the target MCS table;
the MCS table comprises a second table, a first table and a third table with the spectrum efficiency from high to low, wherein the MCS table is a modulation and coding strategy table defined for a physical downlink shared channel PDSCH in 3GPP specifications; the indication field is used for indicating that the MCS table is one of a first table, a second table or a third table.
According to the configuration method of modulation and coding strategy provided by the invention, before determining the current MCS table based on the indication field in the uplink and downlink control information, the configuration method comprises the following steps:
And defining an indication field of the MCS table in uplink and downlink control information.
According to the configuration method of the modulation and coding strategy provided by the invention, the determining the target MCS table based on the current MCS table and the current unrestricted MCS value comprises the following steps:
Determining an MCS value and a current unrestricted MCS value in a target period when the outer loop MCS window length arrives under the condition that the current MCS table is a first table;
determining a first number of MCS values continuously less than or equal to 0 in the target period of time if the current unrestricted MCS value is less than or equal to 0;
and determining the third table as the target MCS table under the condition that the first time number is larger than a first preset value.
According to the method for configuring the modulation and coding strategy provided by the invention, when the current MCS table is the first table, after determining the MCS value and the current unrestricted MCS value in the target period when the outer loop MCS window length arrives, the method comprises the following steps:
Determining a second number of times that the MCS value is continuously greater than or equal to 28 within the target period of time if the current unrestricted MCS value is greater than or equal to 28;
And determining the second table as the target MCS table under the condition that the second times are larger than a second preset value.
According to the configuration method of the modulation and coding strategy provided by the invention, the determining the target MCS table based on the current MCS table and the current unrestricted MCS value comprises the following steps:
determining an MCS value and a current unrestricted MCS value in a target period when the outer loop MCS window length arrives under the condition that the current MCS table is a second table;
Determining a third number of times when the MCS value is continuously less than or equal to 0 in the target period of time under the condition that the current unrestricted MCS value is less than or equal to 0;
And determining the first table as the target MCS table in the case that the third number of times is larger than a third preset value.
According to the configuration method of the modulation and coding strategy provided by the invention, the determining the target MCS table based on the current MCS table and the current unrestricted MCS value comprises the following steps:
determining an MCS value and a current unrestricted MCS value in a target period when the outer loop MCS window length arrives under the condition that the current MCS table is a third table;
determining that the MCS value is continuously greater than or equal to a fourth number of 28 in the target period of time if the current unrestricted MCS value is greater than or equal to 28;
And determining the first table as the target MCS table in the case that the fourth number of times is larger than a fourth preset value.
The invention also provides a configuration device of the modulation and coding strategy, which comprises:
the first processing module is used for determining a current Modulation and Coding Strategy (MCS) table based on an indication field in the uplink and downlink control information;
a second processing module, configured to determine a target MCS table based on the current MCS table and a current unrestricted MCS value;
The third processing module is used for switching the current MCS table into the target MCS table and determining a modulation scheme and a code rate based on the target MCS table;
the MCS table comprises a second table, a first table and a third table with the spectrum efficiency from high to low, wherein the MCS table is a modulation and coding strategy table defined for a physical downlink shared channel PDSCH in 3GPP specifications; the indication field is used for indicating that the MCS table is one of a first table, a second table or a third table.
The invention also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the modulation and coding strategy method as described in any of the above when executing the program.
The invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a modulation and coding strategy method as described in any of the above.
The invention also provides a computer program product comprising a computer program which when executed by a processor implements a modulation and coding strategy method as described in any of the above.
According to the configuration method, the device and the electronic equipment of the modulation and coding strategy, the MCS table is determined according to the indication field in the uplink and downlink control information and is switched, so that signaling conflict can be avoided, meanwhile, the target MCS table to be switched is determined according to the current unrestricted MCS value, the modulation and coding strategy is timely adjusted, and the communication efficiency can be effectively improved.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for configuring a modulation and coding strategy according to the present invention;
FIG. 2 is a schematic diagram of a configuration device of a modulation and coding strategy according to the present invention;
fig. 3 is a schematic structural diagram of an electronic device provided by the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The method, apparatus and electronic device for configuring modulation and coding strategy according to the present invention are described below with reference to fig. 1 to 3.
It should be noted that, the configuration method of the modulation and coding strategy in the embodiment of the present invention is applied to the base station side of the 5G NR system. In the embodiment of the invention, the execution subject may be a controller or a server of the base station. The following describes a method for configuring a modulation and coding scheme according to an embodiment of the present invention with a server as an execution body.
As shown in fig. 1, the configuration method of the modulation and coding strategy according to the embodiment of the present invention mainly includes step 110, step 120 and step 130.
Step 110, determining the current modulation and coding strategy MCS table based on the uplink and downlink control information.
The MCS table includes a second table, a first table, and a third table with spectrum efficiency from high to low, and the MCS table is a modulation and coding policy table defined for the physical downlink shared channel PDSCH in the 3GPP specification.
It will be appreciated that the MCS defines the number of valid bits that one RE (Resource Element) can carry. The higher the MCS index in one MCS table, the higher the number of valid bits that can be carried.
According to the AMC algorithm, the base station may select a suitable modulation and coding scheme after receiving the channel quality indication reported by the user equipment, i.e. select a suitable MCS index number from the MCS table. The choice of MCS index number depends on the signal quality of the radio link. The better the signal quality, the higher the MCS index number is selected. The higher the MCS index number, the more useful bits it corresponds to in one symbol that can be transmitted, while the poor signal quality can only select the MCS with a low index number, i.e. the less useful data it can transmit in one symbol.
In 3GPP specification 38.214, the PDSCH is provided with three tables: table5.1.3.1-1:MCS index Table 1for PDSCH, table 5.1.3.1-2:MCS index Table 2for PDSCH, and Table 5.1.3.1-3:MCS index Table 3for PDSCH.
It can be understood that, according to the spectrum efficiency, the first table in the embodiment of the present invention is: table 5.1.3.1-1:MCS index Table 1for PDSCH, the first Table is a 64QAM Table.
The second table of the embodiment of the invention is: table 5.1.3.1-2:MCS index Table 2for PDSCH, the second Table is a 256QAM Table.
The third Table of the embodiment of the invention is Table 5.1.3.1-3:MCS index Table 3for PDSCH, and the third Table is a 64QAM Table with low frequency spectrum efficiency.
In this embodiment, the current modulation and coding strategy MCS table may be determined by reading an indication field in the uplink and downlink control information. The indication field is used to indicate that the MCS table is one of a first table, a second table, or a third table.
For example, a "MCS table indicator" field in the downlink control information may be read, where the length of the field is 2 bits, and the value meanings are 00-MCS table 1, 01-MCS table2 and 10-MCS table 3, respectively, that is, "00" represents the first table, "01" represents the second table, and "10" represents the third table. Or in the uplink, the control information DCI of the uplink is determined by DCI (Downlink Control Information ) transmitted in the downlink.
In the related art, a base station generally selects according to RRC (Radio Resource Control ) signaling and physical layer signaling when determining an MCS table to be used. Therefore, when the switching of the MCS table is involved, the RRC reconfiguration signaling is triggered to be configured, and thus signaling conflict is caused.
To avoid signaling collision, therefore, at step 110: based on the uplink and downlink control information, before determining the current modulation and coding strategy MCS table, the configuration method of the modulation and coding strategy according to the embodiment of the present invention further includes: an indication field of the MCS table is defined in the uplink and downlink control information.
In other words, the "MCS table indicator" field in the above embodiment is defined in advance in the uplink and downlink control information.
It should be noted that, the bits of the defined field may be an indicator field belonging to the bandwidth portion, a frequency domain resource allocation field, a time domain resource allocation field, a transmission configuration indication field, etc., and of course, may also be a newly added field in DCI, where the specific type of the field is not limited.
In this embodiment, by customizing the MCS table indication field in the uplink and downlink control information, the RRC reconfiguration generated during the subsequent MCS table switching can be avoided, and thus the signaling collision problem is not involved.
Step 120, determining a target MCS table based on the current MCS table and the current unrestricted MCS value.
It will be appreciated that the lower limit of the MCS index number in the first table is 0 and the upper limit is 28. The lower limit of the MCS index number in the second table is 0 and the upper limit thereof is 27. The lower limit of the MCS index number in the third table is 0 and the upper limit thereof is 28.
According to the AMC algorithm, the AMC algorithm may decrease the selected MCS index number even to a negative number, i.e., exceed the lower limit value in the MCS table, under the condition of very poor signal quality.
It will be appreciated that under conditions of excellent signal quality, the AMC algorithm may raise the selected MCS index number even to exceed the upper limit value in the MCS table.
The current unrestricted MCS value is the MCS index number exceeding the upper and lower limits of the MCS index number in the MCS table determined by the current AMC algorithm.
Under the condition, the different MCS tables can be reasonably switched according to the signal quality and the current unconstrained MCS value due to different frequency spectrum efficiency, so that the transmission efficiency is improved, the problems of high error rate and low peak efficiency are avoided, and the communication efficiency is improved.
In other words, the MCS table may be switched according to the unrestricted MCS value determined by the AMC algorithm and the current MCS table.
The following describes a method for configuring a modulation and coding strategy according to an embodiment of the present invention, taking a current MCS table as an example of three different MCS tables.
1. The current MCS table is the first table.
Step 120: determining the target MCS table may include, based on the current MCS table and the current unrestricted MCS value: in the case where it is determined that the current MCS table is the first table, an MCS value and a current unrestricted MCS value within a target period when the outer loop MCS window length arrives are determined.
It will be appreciated that when the outer loop MCS window length arrives, the current unrestricted MCS value is the sum of the inner loop MCS value and the outer loop MCS value.
The inner loop MCS value may be determined by means of periodic reporting. The outer loop MCS value may be counted for a certain number of data packets by a schedule window length counter during a target period.
In the case where the current unrestricted MCS value is less than or equal to 0, that is, in the case where the unrestricted MCS value exceeds the lower limit of the first table, a first number in which the MCS value is continuously less than or equal to 0 within the target period is determined.
In this case, the number of data packets in the target period may be counted to obtain each MCS value in the target period to determine the first number, that is, the number of times of continuously exceeding the lower limit value.
Since the size of the spectrum efficiency of the whole first table is centered in the three MCS tables, the signal quality of the current link is poor when the first number is greater than the first preset value, and the third table is determined as the target MCS table.
It should be noted that the first preset value may be determined according to the actual target duration and the communication content, which is not limited herein.
In other words, when the signal quality is poor, the third table with lower spectral efficiency is used as the target MCS table, so that communication with lower spectral efficiency and code rate can be ensured, and the error rate can be effectively reduced.
In some embodiments, after determining the MCS value and the current unrestricted MCS value in the target period when the outer-loop MCS window length arrives in the case that the current MCS table is the first table, the configuration method of the modulation and coding strategy according to the embodiment of the present invention further includes: in the case where the current unrestricted MCS value is greater than or equal to 28, i.e., in the case where the unrestricted MCS value exceeds the upper limit of the first table, a second number of times in which the MCS value is continuously greater than or equal to 28 within the target period is determined.
In this case, the signal quality of the current link is good. And determining a second table with higher spectral efficiency and code rate as a target MCS table in the case that the second number of times is larger than a second preset value.
It should be noted that the second preset value may be determined according to the actual target duration and the communication content, which is not limited herein.
Since the overall spectrum efficiency of the first table is centered in the three MCS tables, the signal quality of the current link is poor if the second number of times is greater than the second preset value, and the third table is determined as the target MCS table.
In other words, when the signal quality is excellent, the second table with higher spectral efficiency is used as the target MCS table, so that communication with higher spectral efficiency and code rate can be ensured, the peak transmission rate can be effectively improved, and the communication efficiency can be improved.
2. The current MCS table is the second table.
Step 120: determining the target MCS table may include, based on the current MCS table and the current unrestricted MCS value: in the case where it is determined that the current MCS table is the second table, the MCS value and the current unrestricted MCS value within the target period when the outer loop MCS window length arrives are determined.
It is understood that the lower limit of the MCS value in the second table is 0. In the case that the current unrestricted MCS value is less than or equal to 0, the signal quality of the link is very poor, and then a third number of times that the MCS value is continuously less than or equal to 0 in the target period is determined.
The spectral efficiency and code rate of the second table are the highest of the three MCS tables, which are suitable for better signal quality environments. And when the signal quality of the current link is determined to be extremely poor, switching to an MCS table with lower frequency spectrum efficiency and lower code rate is needed.
In some embodiments, the first table is determined to be the target MCS table if the third number of times is greater than a third preset value.
Of course, in other embodiments, the third table may also be determined to be the target MCS table if the third number of times is greater than the third preset value.
But may switch to the first table first in order to guarantee a higher peak transmission rate. After the modulation and coding strategy is configured according to the first table and transmitted, the MCS can be re-switched according to the real-time unrestricted MCS value, i.e. the current MCS table is processed according to the situation when the current MCS table is the first table.
It should be noted that the third preset value may be determined according to the actual target duration and the communication content, which is not limited herein.
In the present embodiment, when the signal quality is poor, switching to the MCS table having lower spectral efficiency and code rate can ensure communication with lower spectral efficiency and code rate, and thus the error rate can be effectively reduced.
3. The current MCS table is the third table.
Step 120: determining the target MCS table may include, based on the current MCS table and the current unrestricted MCS value: in the case where it is determined that the current MCS table is the third table, the MCS value and the current unrestricted MCS value within the target period when the outer loop MCS window length arrives are determined.
It is understood that the upper limit of the MCS value in the third table is 28. In the case where the current unrestricted MCS value is greater than or equal to 28, the signal quality of the link is excellent, and thus it is further determined that the MCS value is continuously greater than or equal to the fourth number of 28 in the target period.
The spectral efficiency and code rate of the third table are the lowest of the three MCS tables, which is suitable for environments where signal quality is poor. And when the signal quality of the current link is determined to be excellent, switching to an MCS table with higher frequency spectrum efficiency and higher code rate is needed.
In some embodiments, the first table is determined to be the target MCS table if the fourth number is greater than a fourth preset value.
In other embodiments, the second table may also be determined to be the target MCS table in the event that the fourth number is greater than the fourth preset value.
However, to avoid a higher bit error rate when the signal quality is degraded, it is possible to switch to the first table first.
It should be noted that the fourth preset value may be determined according to the actual target duration and the communication content, which is not limited herein.
In this embodiment, when the signal quality is excellent, the MCS table with higher spectral efficiency is used as the target MCS table, so that it is ensured that communication is performed with higher spectral efficiency and code rate, and the peak transmission rate can be effectively improved, thereby improving the communication efficiency.
And 130, switching the current MCS table into a target MCS table, and determining a modulation scheme and a code rate based on the target MCS table.
It can be appreciated that after determining the target MCS table, the current MCS table is switched to the target MCS table, and the modulation scheme and the code rate are determined according to the target MCS table.
It will be appreciated that after the MCS table is switched for communication, the MCS may be re-switched according to the real-time unrestricted MCS value, i.e. processed according to the different situations when the current MCS table is three tables.
According to the configuration method of the modulation and coding strategy, which is provided by the embodiment of the invention, the MCS table is determined according to the indication field in the uplink and downlink control information and is switched, so that the signaling conflict can be avoided, meanwhile, the target MCS table to be switched is determined according to the current unrestricted MCS value, the modulation and coding strategy is timely adjusted, and the communication efficiency can be effectively improved.
The configuration device of the modulation and coding strategy provided by the invention is described below, and the configuration device of the modulation and coding strategy described below and the configuration method of the modulation and coding strategy described above can be referred to correspondingly.
As shown in fig. 2, the configuration device of the modulation and coding strategy according to the embodiment of the present invention includes: a first processing module 210, a second processing module 220, and a third processing module 230.
The first processing module 210 is configured to determine a current modulation and coding strategy MCS table based on an indication field in the uplink and downlink control information;
The second processing module 220 is configured to determine a target MCS table based on the current MCS table and the current unrestricted MCS value;
the third processing module 230 is configured to switch the current MCS table to a target MCS table, and determine a modulation scheme and a code rate based on the target MCS table;
The MCS table comprises a second table, a first table and a third table with the spectrum efficiency from high to low, wherein the MCS table is a modulation and coding strategy table defined for a physical downlink shared channel PDSCH in the 3GPP specification; the indication field is used to indicate that the MCS table is one of a first table, a second table, or a third table.
According to the configuration device for the modulation and coding strategy, which is provided by the embodiment of the invention, the MCS table is determined according to the indication field in the uplink and downlink control information and is switched, so that signaling conflict can be avoided, meanwhile, the target MCS table to be switched is determined according to the current unrestricted MCS value, the modulation and coding strategy is timely adjusted, and the communication efficiency can be effectively improved.
In some embodiments, the configuration apparatus of a modulation and coding strategy according to the embodiments of the present invention further includes a fourth processing module, where the fourth processing module is configured to define an indication field of an MCS table in the uplink and downlink control information.
In some embodiments, the second processing module 220 is further configured to determine, if the current MCS table is the first table, an MCS value and a current unrestricted MCS value within the target period when the outer loop MCS window length arrives; determining a first number of MCS values continuously smaller than or equal to 0 in a target period of time under the condition that the current unrestricted MCS value is smaller than or equal to 0; and determining the third table as a target MCS table in the case that the first time number is larger than the first preset value.
In some embodiments, the second processing module 220 is further configured to determine a second number of times that the MCS value is continuously greater than or equal to 28 within the target period if the current unrestricted MCS value is greater than or equal to 28; and determining the second table as a target MCS table in the case that the second number of times is larger than a second preset value.
In some embodiments, the second processing module 220 is further configured to determine, if the current MCS table is the second table, an MCS value and a current unrestricted MCS value within the target period when the outer loop MCS window length arrives; determining a third number of times when the MCS value is continuously less than or equal to 0 in the target period of time under the condition that the current unrestricted MCS value is less than or equal to 0; and determining the first table as a target MCS table in the case that the third number of times is larger than a third preset value.
In some embodiments, the second processing module 220 is further configured to determine, if the current MCS table is the third table, an MCS value and a current unrestricted MCS value within the target period when the outer loop MCS window length arrives; determining a fourth number in which the MCS value is continuously greater than or equal to 28 within the target period of time in the case where the current unrestricted MCS value is greater than or equal to 28; and determining the first table as a target MCS table in the case that the fourth time number is larger than a fourth preset value.
Fig. 3 illustrates a physical schematic diagram of an electronic device, as shown in fig. 3, where the electronic device may include: processor 310, communication interface (Communications Interface) 320, memory 330 and communication bus 340, wherein processor 310, communication interface 320 and memory 330 communicate with each other via communication bus 340. The processor 310 may invoke logic instructions in the memory 330 to perform a method of configuring a modulation and coding strategy, the method comprising: determining a current Modulation and Coding Strategy (MCS) table based on an indication field in uplink and downlink control information; determining a target MCS table based on the current MCS table and the current unrestricted MCS value; switching the current MCS table into a target MCS table, and determining a modulation scheme and a code rate based on the target MCS table; the MCS table comprises a second table, a first table and a third table with the spectrum efficiency from high to low, wherein the MCS table is a modulation and coding strategy table defined for a physical downlink shared channel PDSCH in the 3GPP specification; the indication field is used to indicate that the MCS table is one of a first table, a second table, or a third table.
Further, the logic instructions in the memory 330 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product, the computer program product including a computer program, the computer program being storable on a non-transitory computer readable storage medium, the computer program, when executed by a processor, being capable of executing a method of configuring a modulation and coding scheme provided by the above methods, the method comprising: determining a current Modulation and Coding Strategy (MCS) table based on an indication field in uplink and downlink control information; determining a target MCS table based on the current MCS table and the current unrestricted MCS value; switching the current MCS table into a target MCS table, and determining a modulation scheme and a code rate based on the target MCS table; the MCS table comprises a second table, a first table and a third table with the spectrum efficiency from high to low, wherein the MCS table is a modulation and coding strategy table defined for a physical downlink shared channel PDSCH in the 3GPP specification; the indication field is used to indicate that the MCS table is one of a first table, a second table, or a third table.
In yet another aspect, the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform a method of configuring a modulation and coding strategy provided by the above methods, the method comprising: determining a current Modulation and Coding Strategy (MCS) table based on an indication field in uplink and downlink control information; determining a target MCS table based on the current MCS table and the current unrestricted MCS value; switching the current MCS table into a target MCS table, and determining a modulation scheme and a code rate based on the target MCS table; the MCS table comprises a second table, a first table and a third table with the spectrum efficiency from high to low, wherein the MCS table is a modulation and coding strategy table defined for a physical downlink shared channel PDSCH in the 3GPP specification; the indication field is used to indicate that the MCS table is one of a first table, a second table, or a third table.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (8)

1. A method for configuring a modulation and coding strategy, comprising:
Determining a current Modulation and Coding Strategy (MCS) table based on an indication field in uplink and downlink control information;
Determining a target MCS table based on the current MCS table and the current unrestricted MCS value; the current unrestricted MCS value is the MCS index number exceeding the upper and lower limits of the MCS index number in the MCS table determined by the current AMC algorithm;
switching the current MCS table into the target MCS table, and determining a modulation scheme and a code rate based on the target MCS table;
The MCS table comprises a second table, a first table and a third table with the spectrum efficiency from high to low, wherein the MCS table is a modulation and coding strategy table defined for a physical downlink shared channel PDSCH in 3GPP specifications; the indication field is used for indicating that the MCS table is one of a first table, a second table or a third table;
The determining a target MCS table based on the current MCS table and the current unrestricted MCS value includes:
Determining an MCS value and a current unrestricted MCS value in a target period when the outer loop MCS window length arrives under the condition that the current MCS table is a first table;
determining a first number of MCS values continuously less than or equal to 0 in the target period of time if the current unrestricted MCS value is less than or equal to 0;
and determining the third table as the target MCS table under the condition that the first time number is larger than a first preset value.
2. The method for configuring a modulation and coding scheme according to claim 1, wherein before determining the current MCS table based on the indication field in the uplink and downlink control information, the method comprises:
And defining an indication field of the MCS table in uplink and downlink control information.
3. The method according to claim 1, wherein after determining the MCS value and the current unrestricted MCS value within the target period when the outer-loop MCS window length arrives in the case that the current MCS table is the first table, comprising:
Determining a second number of times that the MCS value is continuously greater than or equal to 28 within the target period of time if the current unrestricted MCS value is greater than or equal to 28;
And determining the second table as the target MCS table under the condition that the second times are larger than a second preset value.
4. The method for configuring a modulation and coding strategy according to claim 1 or 2, wherein said determining a target MCS table based on said current MCS table and a current unrestricted MCS value comprises:
determining an MCS value and a current unrestricted MCS value in a target period when the outer loop MCS window length arrives under the condition that the current MCS table is a second table;
Determining a third number of times when the MCS value is continuously less than or equal to 0 in the target period of time under the condition that the current unrestricted MCS value is less than or equal to 0;
And determining the first table as the target MCS table in the case that the third number of times is larger than a third preset value.
5. The method for configuring a modulation and coding strategy according to claim 1 or 2, wherein said determining a target MCS table based on said current MCS table and a current unrestricted MCS value comprises:
determining an MCS value and a current unrestricted MCS value in a target period when the outer loop MCS window length arrives under the condition that the current MCS table is a third table;
determining that the MCS value is continuously greater than or equal to a fourth number of 28 in the target period of time if the current unrestricted MCS value is greater than or equal to 28;
And determining the first table as the target MCS table in the case that the fourth number of times is larger than a fourth preset value.
6. A modulation and coding strategy configuration apparatus, comprising:
the first processing module is used for determining a current Modulation and Coding Strategy (MCS) table based on an indication field in the uplink and downlink control information;
A second processing module, configured to determine a target MCS table based on the current MCS table and a current unrestricted MCS value; the current unrestricted MCS value is the MCS index number exceeding the upper and lower limits of the MCS index number in the MCS table determined by the current AMC algorithm;
The third processing module is used for switching the current MCS table into the target MCS table and determining a modulation scheme and a code rate based on the target MCS table;
The MCS table comprises a second table, a first table and a third table with the spectrum efficiency from high to low, wherein the MCS table is a modulation and coding strategy table defined for a physical downlink shared channel PDSCH in 3GPP specifications; the indication field is used for indicating that the MCS table is one of a first table, a second table or a third table;
The determining a target MCS table based on the current MCS table and the current unrestricted MCS value includes:
Determining an MCS value and a current unrestricted MCS value in a target period when the outer loop MCS window length arrives under the condition that the current MCS table is a first table;
determining a first number of MCS values continuously less than or equal to 0 in the target period of time if the current unrestricted MCS value is less than or equal to 0;
and determining the third table as the target MCS table under the condition that the first time number is larger than a first preset value.
7. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements a method for configuring a modulation and coding strategy according to any one of claims 1 to 5 when executing the program.
8. A non-transitory computer readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements a method of configuring a modulation and coding strategy according to any of claims 1 to 5.
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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115665874B (en) * 2022-11-21 2023-06-13 深圳国人无线通信有限公司 Downlink PDSCH scheduling method and system based on CQI table

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090058494A (en) * 2009-05-22 2009-06-09 엘지전자 주식회사 Method and apparatus for selecting mcs index according to frequency selectivity, and communication system for the same
CN104115434A (en) * 2012-02-20 2014-10-22 诺基亚通信公司 Controlling a modulation and coding scheme for a transmission between a base station and user equipment
WO2014205834A1 (en) * 2013-06-29 2014-12-31 华为技术有限公司 Modulation and coding scheme selection method, user equipment and base station
CN104660544A (en) * 2013-11-22 2015-05-27 华为技术有限公司 High order modulation and low order modulation compatible transmission method and device
CN110474732A (en) * 2018-05-11 2019-11-19 电信科学技术研究院有限公司 A kind of indicating means, device and the base station of modulation and coding strategy MCS table
JP2020065291A (en) * 2020-01-09 2020-04-23 ノキア ソリューションズ アンド ネットワークス オサケユキチュア Control of modulation and coding scheme for transmission between base station and user equipment
WO2020200053A1 (en) * 2019-03-29 2020-10-08 华为技术有限公司 Data transmission method and apparatus
CN112218318A (en) * 2019-07-09 2021-01-12 普天信息技术有限公司 Subband contraction method and device in LTE230 system
CN112600648A (en) * 2020-12-11 2021-04-02 深圳金信诺高新技术股份有限公司 Downlink adaptive modulation and coding method and system based on 5G standard NR
CN112929980A (en) * 2019-12-06 2021-06-08 中兴通讯股份有限公司 Initial MCS value determination method, electronic device and storage medium
WO2021215195A1 (en) * 2020-04-22 2021-10-28 株式会社Ｎｔｔドコモ Terminal and communication method
CN113839740A (en) * 2020-06-24 2021-12-24 中兴通讯股份有限公司 Method, device and equipment for determining outer ring value and storage medium

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9713189B2 (en) * 2012-11-07 2017-07-18 Telefonaktiebolaget Lm Ericsson (Publ) Multiple outer loop link adaptation
CN103078704B (en) * 2012-12-28 2018-01-05 中兴通讯股份有限公司 A kind of method and system for managing modulation coding mode
CN110034859B (en) * 2018-01-12 2021-06-08 华为技术有限公司 Communication method and device
CN110474739B (en) * 2018-05-11 2022-06-28 中兴通讯股份有限公司 Modulation coding and CQI reporting method, device, equipment and storage medium
CN112930666A (en) * 2018-08-17 2021-06-08 株式会社Ntt都科摩 User terminal and wireless communication method

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090058494A (en) * 2009-05-22 2009-06-09 엘지전자 주식회사 Method and apparatus for selecting mcs index according to frequency selectivity, and communication system for the same
CN104115434A (en) * 2012-02-20 2014-10-22 诺基亚通信公司 Controlling a modulation and coding scheme for a transmission between a base station and user equipment
WO2014205834A1 (en) * 2013-06-29 2014-12-31 华为技术有限公司 Modulation and coding scheme selection method, user equipment and base station
CN104660544A (en) * 2013-11-22 2015-05-27 华为技术有限公司 High order modulation and low order modulation compatible transmission method and device
CN110474732A (en) * 2018-05-11 2019-11-19 电信科学技术研究院有限公司 A kind of indicating means, device and the base station of modulation and coding strategy MCS table
WO2020200053A1 (en) * 2019-03-29 2020-10-08 华为技术有限公司 Data transmission method and apparatus
CN112218318A (en) * 2019-07-09 2021-01-12 普天信息技术有限公司 Subband contraction method and device in LTE230 system
CN112929980A (en) * 2019-12-06 2021-06-08 中兴通讯股份有限公司 Initial MCS value determination method, electronic device and storage medium
JP2020065291A (en) * 2020-01-09 2020-04-23 ノキア ソリューションズ アンド ネットワークス オサケユキチュア Control of modulation and coding scheme for transmission between base station and user equipment
WO2021215195A1 (en) * 2020-04-22 2021-10-28 株式会社Ｎｔｔドコモ Terminal and communication method
CN113839740A (en) * 2020-06-24 2021-12-24 中兴通讯股份有限公司 Method, device and equipment for determining outer ring value and storage medium
CN112600648A (en) * 2020-12-11 2021-04-02 深圳金信诺高新技术股份有限公司 Downlink adaptive modulation and coding method and system based on 5G standard NR

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Panasonic.R1-141212 "MCS Indication for 256QAM".3GPP tsg_ran\WG1_RL1.2014,(TSGR1_76b),全文. *
单小区MBMS的吞吐量优化与频域调度;张力;贺志强;牛凯;吴伟陵;;北京邮电大学学报;20100215(01);全文 *
多波束切换技术在船载卫星通信系统中的应用;黎敏;;舰船科学技术(14);全文 *

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