CN114696945A - Adaptive modulation coding adjusting method, device and equipment - Google Patents
Adaptive modulation coding adjusting method, device and equipment Download PDFInfo
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W72/044—Wireless resource allocation based on the type of the allocated resource
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Abstract
The embodiment of the invention discloses a method, a device and equipment for adjusting adaptive modulation and coding. The method comprises the following steps: obtaining a first parameter representing the interference degree of the time slot, and determining a cross time slot type corresponding to the time slot; determining a target adjustment parameter according to the type of the crossed time slot and the first parameter, and determining Modulation and Coding Scheme (MCS) information of the time slot according to the first parameter and the target adjustment parameter.
Description
Technical Field
The present invention relates to the field of wireless communications, and in particular, to a method, an apparatus, and a device for Adaptive Modulation and Coding (AMC).
Background
When two Time Division Duplex (TDD) systems use the same or closely adjacent frequencies, cross-slot interference occurs if the Time slots are not synchronized, as shown in fig. 1. Therefore, in a cross networking scenario, the difference between the channel states of the cross time slot and the non-cross time slot is large. At present, AMC link self-adaptive scheduling adopts a set of traditional scheduling parameters for both cross time slots and non-cross time slots, so that Modulation and Coding Schemes (MCS) cannot distinguish channel changes of the cross time slots, and the problem that interference time slots adopt lower MCS scheduling due to the fact that the overall MCS is reduced by a high bit error rate is easy to occur, thereby affecting the overall performance.
Disclosure of Invention
In order to solve the technical problem in the prior art, embodiments of the present invention provide a method, an apparatus, and a device for adaptive modulation and coding adjustment.
In order to achieve the above purpose, the technical solution of the embodiment of the present invention is realized as follows:
the embodiment of the invention provides a method for adjusting adaptive modulation and coding, which comprises the following steps:
obtaining a first parameter representing the interference degree of the time slot, and determining a cross time slot type corresponding to the time slot;
and determining a target adjustment parameter according to the type of the crossed time slot and the first parameter, and determining MCS information of the time slot according to the first parameter and the target adjustment parameter.
In the above scheme, the cross slot type includes at least one of a first cross slot type, a second cross slot type and a third cross slot type;
the first cross time slot type represents a cross time slot of interference of a downlink time slot to an uplink time slot;
the second cross time slot type represents the cross time slot of the interference of the special time slot to the uplink time slot;
the third cross slot type characterizes a slot without cross interference.
In the foregoing solution, the determining a target adjustment parameter according to the cross slot type and the first parameter includes: obtaining a second parameter representing the historical interference degree of the time slot;
determining a target adjustment parameter according to the type of the cross time slot, the first parameter and the second parameter; and the values of the target adjustment parameters corresponding to different cross time slot types are different.
In the above solution, the determining a target adjustment parameter according to the cross slot type, the first parameter, and the second parameter includes: determining a third parameter according to the first parameter and the second parameter, wherein the third parameter represents a change rule of the interference degree of the time slot;
determining a value of a target adjustment parameter based on the third parameter; the target adjusting parameters comprise a first adjusting parameter, a second adjusting parameter and a first adjusting quantity; the first adjustment parameter represents a weight coefficient of the first parameter, and the second adjustment parameter represents a weight coefficient of the second parameter.
In the above solution, the target adjustment parameter further includes a second adjustment amount; the second adjustment amount is determined based on a target initial block error rate and an adjustment step length; the target initial block error rate and/or the adjustment step length corresponding to different cross time slot types are different;
the determining the MCS information of the time slot according to the first parameter and the target adjustment parameter includes: determining first MCS information according to the first adjustment parameter, the first parameter, the second adjustment parameter, the second parameter and the first adjustment quantity and a preset mapping relation;
and determining the MCS information of the time slot according to the first MCS information and the second adjustment amount.
The embodiment of the invention also provides an adaptive modulation coding adjusting device, which comprises: the device comprises an acquisition unit, a first determination unit and a second determination unit; wherein the content of the first and second substances,
the obtaining unit is used for obtaining a first parameter representing the interference degree of the time slot;
the first determining unit is configured to determine a cross timeslot type corresponding to a timeslot; the system is also used for determining a target adjustment parameter according to the type of the cross time slot and the first parameter;
and the second determining unit is configured to determine modulation and coding scheme, MCS, information of the timeslot according to the first parameter and the target adjustment parameter.
In the above scheme, the cross slot types include a first cross slot type, a second cross slot type and a third cross slot type;
the first cross time slot type represents a cross time slot of interference of a downlink time slot to an uplink time slot;
the second cross time slot type represents the cross time slot of the interference of the special time slot to the uplink time slot;
the third cross slot type characterizes a slot without cross interference.
In the foregoing solution, the first determining unit is configured to obtain a second parameter representing a historical interference level of the timeslot; determining a target adjustment parameter according to the type of the cross time slot, the first parameter and the second parameter; wherein, the values of the target adjustment parameters corresponding to different cross time slot types are different.
In the above solution, the first determining unit is configured to determine a third parameter according to the first parameter and the second parameter, where the third parameter represents a change rule of an interfered degree of the timeslot; determining a value of a target adjustment parameter based on the third parameter; the target adjusting parameters comprise a first adjusting parameter, a second adjusting parameter and a first adjusting quantity; the first adjustment parameter represents a weight coefficient of the first parameter, and the second adjustment parameter represents a weight coefficient of the second parameter.
In the above solution, the target adjustment parameter further includes a second adjustment amount; the second adjustment amount is determined based on a target initial block error rate and an adjustment step length; the target initial block error rate and/or the adjustment step length corresponding to different cross time slot types are different;
the second determining unit is further configured to determine first MCS information according to the first adjustment parameter and the first parameter, the second adjustment parameter and the first adjustment amount according to a preset mapping relationship; and determining the MCS information of the time slot according to the first MCS information and the second adjustment amount.
Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps of the method according to an embodiment of the present invention.
The embodiment of the present invention further provides a communication device, which includes a memory, a processor, and a computer program stored in the memory and capable of running on the processor, and when the processor executes the computer program, the steps of the method according to the embodiment of the present invention are implemented.
The embodiment of the invention provides a method, a device and equipment for adjusting adaptive modulation and coding, wherein the method comprises the following steps: obtaining a first parameter representing the interference degree of the time slot, and determining a cross time slot type corresponding to the time slot; and determining a target adjustment parameter according to the type of the crossed time slot and the first parameter, and determining MCS information of the time slot according to the first parameter and the target adjustment parameter. By adopting the technical scheme of the embodiment of the invention, the target adjustment parameters are determined according to different cross time slot types, namely the target adjustment parameters for determining the MCS support the differentiation of different cross time slot types, thereby realizing the accurate scheduling of the MCS corresponding to the time slot, improving the spectrum efficiency and further improving the system performance and the cell throughput.
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FIG. 1 is a schematic diagram of cross-slot interference;
fig. 2 is a schematic flow chart of an adaptive modulation and coding adjustment method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an adaptive modulation and coding adjusting apparatus according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a hardware structure of a communication device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The embodiment of the invention provides an adaptive modulation and coding adjusting method. Fig. 2 is a schematic flow chart of an adaptive modulation and coding adjustment method according to an embodiment of the present invention; as shown in fig. 2, the method includes:
step 101: obtaining a first parameter representing the interference degree of the time slot, and determining a cross time slot type corresponding to the time slot;
step 102: and determining a target adjustment parameter according to the type of the crossed time slot and the first parameter, and determining MCS information of the time slot according to the first parameter and the target adjustment parameter.
In the related technical scheme, for example, the adjacent frequency deployment scenario is aimed at, namely, the adjacent frequency deployment of two systems in a unified frequency band; if the time slots of the two TDD systems are synchronous, cross time slot interference cannot be generated; if the time slots are asynchronous, because the radio frequency filter has passband for both systems, no inhibition is caused, and adjacent frequency cross time slot interference is introduced. For another example, the same adjacent frequency deployment scenario is targeted, that is, two systems in the same frequency band are deployed in close proximity to the adjacent frequency; if the time slots of the two TDD systems are synchronous, cross time slot interference cannot be generated; if the time slots are not synchronous, the same adjacent frequency cross time slot interference is introduced.
The adaptive modulation and coding adjustment method of the embodiment is applicable to the following scenarios: scene one: the downlink time slot of the macro base station and the macro base station generates cross time slot interference on the uplink time slot; scene two: the method comprises the following steps that a macro base station and a pico base station are adopted, wherein a downlink time slot of the macro base station generates cross time slot interference on an uplink time slot of the pico base station, or the downlink time slot of the pico base station generates cross time slot interference on the uplink time slot of the macro base station; scene three: the downlink time slot generates cross time slot interference to the uplink time slot.
The macro base station is also called a macro station, and may refer to a base station with a single carrier transmission power of more than 10 watts (W) and a coverage radius of more than 200 meters. The pico-base station, also known as a pico-station or an enterprise-class small base station, may refer to a base station with a single carrier transmission power of 100 milliwatts (mW) -500mW and a coverage radius of 20 meters-50 meters.
The adaptive modulation and coding adjustment method of this embodiment may be applied to a terminal device, and is used to adjust the modulation and coding of the interfered uplink timeslot, so as to improve the spectrum efficiency and the system performance.
In some optional embodiments, the first parameter characterizes an interference level of the timeslot, or may also be considered to characterize a channel quality or a link transmission quality. Illustratively, the first parameter may be: signal to Interference plus Noise Ratio (SINR) and/or Block Error Rate (BLER), although the first parameter is not limited to SINR and/or BLER in this embodiment, and other parameters capable of characterizing the Interference degree of the timeslot, the channel quality, or the link transmission quality may also be within the protection scope of the embodiments of the present invention.
In this embodiment, the cross slot type includes at least one of a first cross slot type, a second cross slot type, and a third cross slot type; the first cross time slot type represents a cross time slot of interference of a downlink time slot to an uplink time slot; the second cross time slot type represents the cross time slot of the interference of the special time slot to the uplink time slot; the third cross slot type characterizes a slot without cross interference.
Referring to fig. 1, a D time slot (downlink time slot) in a first row and a U time slot (uplink time slot) in a second row represent a cross time slot where the downlink time slot interferes with the uplink time slot, that is, the first cross time slot type; the S time slot (special time slot) in the first row and the U time slot in the second row represent a cross time slot where the special time slot interferes with the uplink time slot, that is, the second cross time slot type. The U time slots in the first row and the U time slots in the second row are the same type of time slots, and represent time slots without cross interference, i.e., the third cross time slot type. Since the special timeslot may be an uplink timeslot or a downlink timeslot, the D timeslot in the first row and the S timeslot in the second row may be classified as the first cross timeslot type or the second cross timeslot type.
In some optional embodiments, the terminal may determine the type of the cross timeslot corresponding to the timeslot according to timeslot configuration information preconfigured by the network device. The timeslot configuration information identifies the timeslot proportion on a specific frequency band and the corresponding frame structure. The terminal can determine the frame structures of the two TDD systems according to the timeslot configuration information, and further determine the type of the cross timeslot corresponding to each timeslot.
In this embodiment, target adjustment parameters are determined for different cross slot types and first parameters, and the target adjustment parameters are used for determining MCS information in combination with the first parameters; the target adjustment parameters may be different for different cross slot types.
In some optional embodiments, the corresponding MCS information may be determined according to a preset mapping relationship by the first parameter and the target adjustment parameter. For example, the preset mapping relationship may be a preset mapping function, and the variables of the mapping function include the first parameter and the target adjustment parameter. In this embodiment, the corresponding target adjustment parameter is determined based on each cross slot type, so as to determine the MCS information corresponding to each cross slot type, thereby implementing accurate scheduling of the MCS corresponding to the slot.
In this embodiment, the MCS information may be, for example, an MCS index value or an MCS order. Different MCS index values or MCS orders may correspond to different modulation coding schemes or transmission rates. And the terminal can transmit data according to the modulation coding mode or the transmission rate corresponding to the MCS information.
In some optional embodiments of the invention, the determining a target adjustment parameter according to the cross slot type and the first parameter comprises: obtaining a second parameter representing the historical interference degree of the time slot; determining a target adjustment parameter according to the type of the cross time slot, the first parameter and the second parameter; wherein, the values of the target adjustment parameters corresponding to different cross time slot types are different.
In this embodiment, if the first parameter is the current SINR, the second parameter may be the historical SINR, for example, the last detected SINR, or the detected SINR before the preset period, or an average value of a plurality of previously detected SINRs, and the like.
In one embodiment, the determining a target adjustment parameter according to the cross slot type, the first parameter, and the second parameter includes: determining a third parameter according to the first parameter and the second parameter, wherein the third parameter represents a change rule of the interference degree of the time slot; determining a value of a target adjustment parameter based on the third parameter; the target adjusting parameters comprise a first adjusting parameter, a second adjusting parameter and a first adjusting quantity; the first adjustment parameter represents a weight coefficient of the first parameter, and the second adjustment parameter represents a weight coefficient of the second parameter.
Optionally, the determining MCS information of the timeslot according to the first parameter and the target adjustment parameter includes: and determining MCS information according to the first adjustment parameter, the first parameter, the second adjustment parameter, the second parameter and the first adjustment amount and a preset mapping relation.
For example, the variable in the preset mapping relationship may be a product of the first adjustment parameter and the first parameter, a product of the second adjustment parameter and the second parameter, and a sum of the first adjustment amount.
In this embodiment, the target adjustment parameter includes a first adjustment parameter, a second adjustment parameter, and a first adjustment amount; wherein the first adjustment parameter represents a weight coefficient of the first parameter, and the second adjustment parameter represents a weight coefficient of the second parameter. Illustratively, the sum of the first adjustment parameter and the second adjustment parameter is 1. Optionally, at least one target adjustment parameter of the first adjustment parameter, the second adjustment parameter and the first adjustment amount is different for different cross slot types.
In this embodiment, for example, the terminal may determine, based on the first parameter and the second parameter, a third parameter representing a change rule of the interference level of the timeslot, where the third parameter may represent a fluctuation situation or a change trend of the received interference, and adjust the first adjustment parameter, the second adjustment parameter, and the first adjustment amount based on the fluctuation situation or the change trend.
For example, if the first parameter is SINR and the third parameter represents that the fluctuation of SINR is small, the first adjustment parameter may be larger than the second adjustment parameter, that is, on the basis of the first adjustment parameter for adjusting MCS last time, the first adjustment parameter may be increased according to a preset step size, and correspondingly, the second adjustment parameter may be decreased.
For example, for the first adjustment amount, if the BLER is smaller, the first adjustment amount may be increased accordingly; correspondingly, if the BLER is larger, the first adjustment amount may be correspondingly reduced. Wherein the first adjustment amount may be a positive value or a negative value.
In another embodiment, the target adjustment parameter further comprises a second adjustment amount; the second adjustment amount is determined based on a target initial block error rate and an adjustment step length; the target initial block error rate and/or the adjustment step length corresponding to different cross time slot types are different; the determining the MCS information of the time slot according to the first parameter and the target adjustment parameter includes: determining first MCS information according to the first adjustment parameter, the first parameter, the second adjustment parameter, the second parameter and the first adjustment quantity and a preset mapping relation; and determining the MCS information of the time slot according to the first MCS information and the second adjustment amount.
In this embodiment, on the basis of the previous embodiment, the target adjustment parameter includes a first adjustment parameter, a second adjustment parameter, a first adjustment amount, and a second adjustment amount; wherein the second adjustment amount may be determined based on a target initial block error rate and an adjustment step size. The target initial block error rate is a block error rate threshold configured by the network, and the adjustment step size may also be configured by the network in advance. In some optional embodiments, the terminal may compare the current block error rate with the target initial block error rate, and if the current block error rate is less than or equal to the target initial block error rate, which may indicate that the current channel quality is better, increase of the adjustment amplitude may be performed on the basis of the configured adjustment step size; if the current block error rate is greater than the target initial block error rate, which can indicate that the current channel quality is not good, the adjustment amplitude can be reduced on the basis of the configured adjustment step length.
For example, the MCS information may be determined according to the following formula (1):
MSCi＝F(fi×SINR+fT×SINRT+ΔSINR)+Δmcsi (1)
wherein, MSCiIndicating the determined MSC information (e.g. MSC order or MSC index value), SINR indicating the current signal-to-noise ratio (i.e. first parameter), SINRTRepresenting a historical signal-to-noise ratio (i.e., a second parameter); f. ofiDenotes a first adjustment parameter, fTDenotes a second adjustment parameter,. DELTA.SINR denotes a first adjustment quantity,. DELTA.mcsiRepresents a second adjustment amount; f () represents a mapping function between MSC information and SINR.
In some optional embodiments of the present invention, the terminal may determine, based on multiple adjustments of the MSC information, a target value of each target adjustment parameter corresponding to different first parameters (or the first parameter and the second parameter) in each cross timeslot type, and it may be considered that, under the corresponding cross timeslot type and each first parameter (or the first parameter and the second parameter), the MSC information (for example, an MSC order or an MSC index value) obtained by taking the target value of each target adjustment parameter is better. In some optional embodiments, target values of each target adjustment parameter corresponding to different first parameters (or first parameters and second parameters) under each cross timeslot type may be recorded to form a mapping set; in the actual adjustment process, the mapping set can be queried, so that the target value of the target adjustment parameter corresponding to a certain first parameter (or the first parameter and the second parameter) in a certain cross time slot type can be directly obtained.
By adopting the technical scheme of the embodiment of the invention, the target adjustment parameters are determined according to different cross time slot types, namely the target adjustment parameters for determining the MCS support the differentiation of different cross time slot types, thereby realizing the accurate scheduling of the MCS corresponding to the time slot, improving the spectrum efficiency and further improving the system performance and the cell throughput.
The embodiment of the invention also provides a device for adjusting the adaptive modulation and coding. Fig. 3 is a schematic structural diagram of an adaptive modulation and coding adjusting apparatus according to an embodiment of the present invention; as shown in fig. 3, the apparatus includes: an acquisition unit 21, a first determination unit 22, and a second determination unit 23; wherein the content of the first and second substances,
the obtaining unit 21 is configured to obtain a first parameter representing an interference degree of the timeslot;
the first determining unit 22 is configured to determine a cross timeslot type corresponding to a timeslot; the system is also used for determining a target adjustment parameter according to the type of the cross time slot and the first parameter;
the second determining unit 23 is configured to determine MCS information of the timeslot according to the first parameter and the target adjustment parameter.
In some optional embodiments of the invention, the cross-slot type comprises at least one of a first cross-slot type, a second cross-slot type, and a third cross-slot type;
the first cross time slot type represents a cross time slot of interference of a downlink time slot to an uplink time slot;
the second cross time slot type represents the cross time slot of the interference of the special time slot to the uplink time slot;
the third cross slot type characterizes a slot without cross interference.
In some optional embodiments of the present invention, the first determining unit 22 is configured to obtain a second parameter representing a historical interference level of the timeslot; determining a target adjustment parameter according to the type of the cross time slot, the first parameter and the second parameter; wherein, the values of the target adjustment parameters corresponding to different cross time slot types are different.
In some optional embodiments of the present invention, the first determining unit 22 is configured to determine a third parameter according to the first parameter and the second parameter, where the third parameter characterizes a rule of change of the interfered degree of the timeslot; determining a value of a target adjustment parameter based on the third parameter; the target adjusting parameters comprise a first adjusting parameter, a second adjusting parameter and a first adjusting quantity; the first adjustment parameter represents a weight coefficient of the first parameter, and the second adjustment parameter represents a weight coefficient of the second parameter.
In some optional embodiments of the invention, the target adjustment parameter further comprises a second adjustment amount; the second adjustment amount is determined based on a target initial block error rate and an adjustment step length; the target initial block error rate and/or the adjustment step length corresponding to different cross time slot types are different;
the second determining unit 23 is further configured to determine first MCS information according to the first adjustment parameter and the first parameter, the second adjustment parameter and the first adjustment amount and according to a preset mapping relationship; and determining the MCS information of the time slot according to the first MCS information and the second adjustment amount.
In the embodiment of the present invention, the obtaining Unit 21, the first determining Unit 22, and the second determining Unit 23 in the apparatus may be implemented by a Central Processing Unit (CPU), a Digital Signal Processor (DSP), a Micro Control Unit (MCU), or a Programmable Gate Array (FPGA) in the terminal in practical application.
It should be noted that: in the information reminding device provided in the above embodiment, only the division of the program modules is exemplified when reminding information, and in practical applications, the processing allocation may be completed by different program modules as needed, that is, the internal structure of the device may be divided into different program modules to complete all or part of the processing described above. In addition, the information reminding device and the information reminding method provided by the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments in detail and are not described herein again.
The embodiment of the invention also provides communication equipment, and the communication equipment can be terminal equipment. Fig. 4 is a schematic diagram of a hardware structure of a communication device according to an embodiment of the present invention, as shown in fig. 4, the communication device includes a memory 32, a processor 31, and a computer program stored in the memory 32 and executable on the processor 31, and when the processor 31 executes the computer program, the steps of the adaptive modulation and coding adjustment method according to an embodiment of the present invention are implemented.
Wherein the communication device may further comprise a network interface 33. The various components in the communication device are coupled together by a bus system 34. It will be appreciated that the bus system 34 is used to enable communications among the components of the connection. The bus system 34 includes a power bus, a control bus, and a status signal bus in addition to the data bus. For clarity of illustration, however, the various buses are labeled as bus system 34 in fig. 4.
It will be appreciated that the memory 32 can be either volatile memory or nonvolatile memory, and can include both volatile and nonvolatile memory. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The memory 32 described in connection with the embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.
The method disclosed in the above embodiments of the present invention may be applied to the processor 31, or implemented by the processor 31. The processor 31 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 31. The processor 31 described above may be a general purpose processor, a DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. Processor 31 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the memory 32, and the processor 31 reads the information in the memory 32 and performs the steps of the aforementioned methods in conjunction with its hardware.
In an exemplary embodiment, the communication Device may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), FPGAs, general purpose processors, controllers, MCUs, microprocessors (microprocessors), or other electronic components for performing the aforementioned methods.
In an exemplary embodiment, the present invention further provides a computer readable storage medium, such as the memory 32, comprising a computer program, which is executable by the processor 31 of the communication device to perform the steps of the aforementioned method. The computer readable storage medium can be Memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disk, or CD-ROM; or may be a variety of devices including one or any combination of the above memories, such as a mobile phone, computer, tablet device, personal digital assistant, etc.
Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the adaptive modulation and coding adjustment method according to the embodiments of the present invention.
The methods disclosed in the several method embodiments provided in the present application may be combined arbitrarily without conflict to obtain new method embodiments.
Features disclosed in several of the product embodiments provided in the present application may be combined in any combination to yield new product embodiments without conflict.
The features disclosed in the several method or apparatus embodiments provided in the present application may be combined arbitrarily, without conflict, to arrive at new method embodiments or apparatus embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
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, that is, 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, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be 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.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.
Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (12)
1. An adaptive modulation and coding adjustment method, the method comprising:
obtaining a first parameter representing the interference degree of the time slot, and determining a cross time slot type corresponding to the time slot;
and determining a target adjustment parameter according to the type of the crossed time slot and the first parameter, and determining Modulation and Coding Strategy (MCS) information of the time slot according to the first parameter and the target adjustment parameter.
2. The method of claim 1, wherein the cross-slot type comprises at least one of a first cross-slot type, a second cross-slot type, and a third cross-slot type;
the first cross time slot type represents a cross time slot of interference of a downlink time slot to an uplink time slot;
the second cross time slot type represents the cross time slot of the interference of the special time slot to the uplink time slot;
the third cross slot type characterizes a slot without cross interference.
3. The method of claim 2, wherein determining a target adjustment parameter based on the cross-slot type and the first parameter comprises:
obtaining a second parameter representing the historical interference degree of the time slot;
determining a target adjustment parameter according to the type of the cross time slot, the first parameter and the second parameter; wherein, the values of the target adjustment parameters corresponding to different cross time slot types are different.
4. The method of claim 3, wherein determining a target adjustment parameter according to the cross-slot type, the first parameter, and the second parameter comprises:
determining a third parameter according to the first parameter and the second parameter, wherein the third parameter represents a change rule of the interference degree of the time slot;
determining a value of a target adjustment parameter based on the third parameter; the target adjusting parameters comprise a first adjusting parameter, a second adjusting parameter and a first adjusting quantity; the first adjustment parameter represents a weight coefficient of the first parameter, and the second adjustment parameter represents a weight coefficient of the second parameter.
5. The method of claim 4, wherein the target adjustment parameter further comprises a second adjustment amount; the second adjustment amount is determined based on a target initial block error rate and an adjustment step size; the target initial block error rate and/or the adjustment step length corresponding to different cross time slot types are different;
the determining the MCS information of the time slot according to the first parameter and the target adjustment parameter includes:
determining first MCS information according to the first adjustment parameter, the first parameter, the second adjustment parameter, the second parameter and the first adjustment quantity and a preset mapping relation;
and determining the MCS information of the time slot according to the first MCS information and the second adjustment amount.
6. An apparatus for adaptive modulation and coding adjustment, the apparatus comprising: the device comprises an acquisition unit, a first determination unit and a second determination unit; wherein the content of the first and second substances,
the obtaining unit is used for obtaining a first parameter representing the interference degree of the time slot;
the first determining unit is configured to determine a cross timeslot type corresponding to a timeslot; the system is also used for determining a target adjustment parameter according to the type of the cross time slot and the first parameter;
and the second determining unit is configured to determine modulation and coding scheme, MCS, information of the timeslot according to the first parameter and the target adjustment parameter.
7. The apparatus of claim 6, wherein the cross-slot types comprise a first cross-slot type, a second cross-slot type, and a third cross-slot type;
the first cross time slot type represents a cross time slot of interference of a downlink time slot to an uplink time slot;
the second cross time slot type represents the cross time slot of the interference of the special time slot to the uplink time slot;
the third cross slot type characterizes a slot without cross interference.
8. The apparatus according to claim 7, wherein the first determining unit is configured to obtain a second parameter that characterizes a historical interference level of the timeslot; determining a target adjustment parameter according to the type of the cross time slot, the first parameter and the second parameter; wherein, the values of the target adjustment parameters corresponding to different cross time slot types are different.
9. The apparatus according to claim 8, wherein the first determining unit is configured to determine a third parameter according to the first parameter and the second parameter, where the third parameter characterizes a rule of variation of the interference level of the timeslot; determining a value of a target adjustment parameter based on the third parameter; the target adjusting parameters comprise a first adjusting parameter, a second adjusting parameter and a first adjusting quantity; the first adjustment parameter represents a weight coefficient of the first parameter, and the second adjustment parameter represents a weight coefficient of the second parameter.
10. The apparatus of claim 9, wherein the target adjustment parameter further comprises a second adjustment amount; the second adjustment amount is determined based on a target initial block error rate and an adjustment step length; the target initial block error rate and/or the adjustment step length corresponding to different cross time slot types are different;
the second determining unit is further configured to determine first MCS information according to the first adjustment parameter and the first parameter, the second adjustment parameter and the first adjustment amount according to a preset mapping relationship; and determining the MCS information of the time slot according to the first MCS information and the second adjustment amount.
11. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 5.
12. A communication device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method of any of claims 1 to 5 are implemented when the processor executes the program.
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