CN111698786B - Power distribution method, device, equipment and storage medium - Google Patents

Abstract

The invention discloses a power distribution method, a device, equipment and a storage medium. The method comprises the following steps: acquiring communication system parameter information and transmission requirement information of a user; the transmission demand information of the user comprises a signal demodulation threshold value of the user equipment; determining the priority of the user equipment for transmitting data according to the signal demodulation threshold value and the transmission demand information of the user; according to the priority of the user, the power of the signal transmitted by the repeater is distributed, and the power distribution can be flexibly carried out, so that the information transmission efficiency is improved.

Description

Power distribution method, device, equipment and storage medium

Technical field

The invention belongs to the field of cognitive radio technology, and in particular relates to a power allocation method, device, equipment and storage medium.

Background technique

In order to meet people's growing needs for communication networks, non-orthogonal multiple access (NOMA) relay systems have attracted widespread attention. In order to further improve the performance of the relay system, people gradually combined the cognitive radio (CR) technology with the NOMA relay system, and launched the cognitive radio-non-orthogonal multiple access (Cognitive Radio-Non Orthogonal Multiple Access) , CR-NOMA) relay system research. However, most of the CR-NOMA relay systems currently studied adopt a fixed power allocation method. This power allocation method is relatively mechanical and cannot perform flexible power allocation according to user needs, resulting in low information transmission efficiency.

Contents of the invention

Embodiments of the present invention provide a power allocation method, device, equipment and storage medium, which can solve the problem of inability to perform flexible power allocation according to user needs, resulting in low information transmission efficiency.

In the first aspect, a power allocation method is provided, which method includes:

Obtain communication system parameter information and user transmission demand information; the user's transmission demand information includes the signal demodulation threshold of the user equipment;

Determine the priority of user equipment to transmit data based on the signal demodulation threshold and the user's transmission demand information;

According to the priority of the user, the power of the signal transmitted by the repeater is allocated.

In a possible implementation, the priority of user equipment to transmit data is determined based on the signal demodulation threshold and the user's transmission requirement information, including:

Determine the first repeater according to the signal demodulation threshold of the user equipment;

According to the first relay, the priority of the user equipment to transmit data is determined.

In a possible implementation, the user equipment includes a first user equipment and at least one second user equipment;

According to the signal demodulation threshold of the user equipment, determining the first repeater includes:

Obtain the first channel vector between the base station and the repeater and the second channel vector between the repeater and the user equipment;

Determine the signal-to-noise ratio of the first user equipment and the signal-to-noise ratio of the second user equipment according to the first channel vector and the second channel vector;

When the signal-to-noise ratio of the first user equipment is not less than the signal demodulation threshold of the first user equipment, and the signal-to-noise ratio of at least one second user equipment is not less than the signal demodulation threshold of at least one second user equipment , determine multiple target repeaters;

determining a signal-to-noise ratio of the plurality of target repeaters demodulating the communication signal of the at least one second user equipment;

Determine the first repeater among the plurality of target repeaters. The first repeater is the one corresponding to the maximum signal-to-noise ratio among the signal-to-noise ratios of the communication signals that demodulate at least one second user equipment among the plurality of target repeaters. Target repeater.

In a possible implementation, the method also includes:

According to the signal demodulation threshold, the first antenna in the repeater used to transmit signals to the base station and user equipment is determined.

In a second aspect, a power distribution device is provided, which device includes:

The acquisition module is used to obtain the communication system parameter information and the user's transmission demand information; the user's transmission demand information includes the signal demodulation threshold of the user equipment;

The determination module is used to determine the priority of data transmission by the user equipment based on the signal demodulation threshold and the user's transmission demand information;

The allocation module is used to allocate the power of the signal transmitted by the repeater according to the priority of the user.

In one possible implementation, modules are allocated specifically for:

Determine the first repeater according to the signal demodulation threshold of the user equipment;

According to the first relay, the priority of the user equipment to transmit data is determined.

In a possible implementation, the users include a first user and at least one second user;

Distribution module, specifically used for:

Obtain the first channel vector between the base station and the repeater and the second channel vector between the repeater and the user equipment;

Determine the signal-to-noise ratio of the first user equipment and the signal-to-noise ratio of the second user equipment according to the first channel vector and the second channel vector;

When the signal-to-noise ratio of the first user equipment is not less than the signal demodulation threshold of the first user equipment, and the signal-to-noise ratio of at least one second user equipment is not less than the signal demodulation threshold of at least one second user equipment , determine multiple target repeaters;

determining a signal-to-noise ratio of the plurality of target repeaters demodulating the communication signal of the at least one second user equipment;

Determine the first repeater among the plurality of target repeaters. The first repeater is the one corresponding to the maximum signal-to-noise ratio among the signal-to-noise ratios of the communication signals that demodulate at least one second user equipment among the plurality of target repeaters. Target repeater.

In a possible implementation, the determining module is also configured to determine the first antenna in the repeater used to transmit signals to the base station and the user equipment according to the signal demodulation threshold.

In a third aspect, an electronic device is provided. The device includes: a processor and a memory storing computer program instructions; when the processor executes the computer program instructions, the method of the first aspect or any possible implementation of the first aspect is implemented. method.

In a fourth aspect, a computer storage medium is provided. Computer program instructions are stored on the computer storage medium. When the computer program instructions are executed by a processor, the method in the first aspect or any possible implementation of the first aspect is implemented.

Based on the provided power allocation method, device, equipment and storage medium, the communication system parameter information and the user's transmission demand information are obtained; the user's transmission demand information includes the signal demodulation threshold value of the user equipment; according to the signal demodulation threshold value and the user's transmission demand information to determine the priority of user equipment to transmit data; according to the user's priority, allocate the power of the repeater's transmitted signal, which can flexibly allocate power, thereby improving the efficiency of information transmission.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the drawings required to be used in the embodiments of the present invention will be briefly introduced below. For those of ordinary skill in the art, without exerting creative efforts, they can also Additional drawings can be obtained from these drawings.

Figure 1 is a schematic flow chart of a power allocation method provided by an embodiment of the present invention;

Figure 2 is a schematic structural diagram of a power distribution device provided by an embodiment of the present invention;

Figure 3 is a schematic structural diagram of an electronic device provided by an embodiment of the present invention.

Detailed ways

Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are configured only to explain the invention and not to limit the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations are mutually exclusive. any such actual relationship or sequence exists between them. Furthermore, the terms "comprises," "comprises," or any other variations thereof are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also those not expressly listed other elements, or elements inherent to the process, method, article or equipment. Without further limitation, an element defined by the statement "including..." does not exclude the presence of additional identical elements in the process, method, article, or device that includes the element.

In order to meet people's growing needs for communication networks, non-orthogonal multiple access (NOMA) relay systems have attracted widespread attention. In order to further improve system performance, people gradually combine cognitive radio technology with NOMA relay systems, and conduct research on CR-NOMA relay systems. The basic idea of the CR-NOMA system is to prioritize the communication needs of the primary user, and then provide services to the secondary users when the communication needs of the primary user are met. However, primary and secondary users are not absolute. Blindly giving priority to meeting the needs of primary users may lead to a decrease in the overall performance of the system. Efficient transmission of the communication system requires overall consideration based on channel conditions, user needs and other aspects, rather than mechanically satisfying them. Primary user needs.

It can be seen that the current power distribution methods are all mechanical power distribution, which has low flexibility and greatly reduces the efficiency of information transmission.

Therefore, embodiments of the present invention provide power allocation methods, devices, equipment and storage media, which can flexibly allocate power, thereby improving information transmission efficiency.

In order to facilitate understanding of the embodiments of the present invention, the power allocation method of the embodiments of the present invention is first described in detail.

Figure 1 is a schematic flowchart of a power allocation method provided by an embodiment of the present invention.

S101: Obtain the communication system parameter information and the user's transmission requirement information; the user's transmission requirement information includes the signal demodulation threshold of the user equipment.

The communication system parameter information may be information about parameters inherent to the communication system, such as the channel gain of the communication system, the number of repeaters and the number of antennas in the communication system, and other information. The communication system may be a CR-NOMA relay system, and the CR-NOMA relay system includes multiple antennas and multiple relays.

The user's transmission requirement information may be the signal demodulation threshold, signal-to-noise ratio and other information required by the user when transmitting information.

S102: Determine the priority of the user equipment to transmit data based on the signal demodulation threshold and the user's transmission requirement information.

Based on the communication system parameters, the user's transmission requirement information is traversed to obtain the priority of the user equipment to transmit data. Here, the communication system includes multiple repeaters, and by traversing the user's transmission requirement information, a repeater that is most suitable for transmitting data of the user equipment can be determined among the multiple repeaters. The repeater corresponds to the user equipment that determines the repeater. It is determined that the user equipment of the repeater has the highest priority at the repeater.

Specifically, based on the signal demodulation threshold and the user's transmission demand information, the priority of the user equipment to transmit data is determined, including:

The first relay is determined according to the signal demodulation threshold of the user equipment; the priority of data transmission by the user equipment is determined based on the first relay.

The user equipment includes a first user equipment and at least one second user equipment. Wherein, determining the first relay according to the signal demodulation threshold of the user equipment includes:

Obtain the first channel vector between the base station and the repeater and the second channel vector between the repeater and the user equipment;

Determine the signal-to-noise ratio of the first user equipment and the signal-to-noise ratio of the second user equipment according to the first channel vector and the second channel vector;

When the signal-to-noise ratio of the first user equipment is not less than the signal demodulation threshold of the first user equipment, and the signal-to-noise ratio of at least one second user equipment is not less than the signal demodulation threshold of at least one second user equipment , determine multiple target repeaters;

determining a signal-to-noise ratio of the plurality of target repeaters demodulating the communication signal of the at least one second user equipment;

Determine the first repeater among the plurality of target repeaters. The first repeater is the one corresponding to the maximum signal-to-noise ratio among the signal-to-noise ratios of the communication signals that demodulate at least one second user equipment among the plurality of target repeaters. Target repeater.

As an example, take user equipment 1 and user equipment 2 as an example. The transmission signal of user equipment 1 is S ₁ , and the signal demodulation threshold of user equipment 1 is ξ ₁ ; the transmission signal of user equipment 2 is S ₂ , and the signal demodulation threshold of user equipment 2 is ξ ₂ . The number of repeaters in the communication system is N _s and the number of antennas is _ND . The channel vector between the base station and the repeater n is expressed as Among them, n=1, 2,..., N _s . The channel vector between repeater n and user equipment i is expressed as/> Among them, i=1,2.

Determine the largest channel vector among the channel vectors between the base station and repeater n Determine the largest channel vector among the channel vectors between repeater n and user equipment 1/> The largest channel vector among the channel vectors between repeater n and user equipment 1 /> According to/> and the signal demodulation threshold value of the user equipment 1 to determine the signal-to-noise ratio of the demodulated transmission signal S ₁ . According to/> and the signal demodulation threshold value of the user equipment 2 to determine the signal-to-noise ratio of the demodulated transmission signal _S2 . Determine that the signal-to-noise ratio of the demodulated transmission signal S ₁ is not less than the signal demodulation threshold of user equipment 1, and that the signal-to-noise ratio of the demodulated transmission signal S ₂ is not less than the signal demodulation threshold of user equipment 2. target repeater. The first repeater is then determined from the plurality of target repeaters, where the first repeater is the target corresponding to the largest signal-to-noise ratio among the signal-to-noise ratios of the plurality of target repeaters that demodulate the transmission signal _S2 . relay.

The user equipment with the highest priority in the first relay is user equipment 2. When the user equipment 2 needs to transmit a signal, the first repeater will first meet the power required to transmit the signal of the user equipment 2 .

S103: Allocate the power of the signal transmitted by the repeater according to the signal demodulation threshold and the priority of the user.

By traversing all user equipment, the optimal relay corresponding to the signal transmitted by the user equipment can be determined, and the power of different user equipment can be allocated adaptively, thereby improving the performance of the relay system and improving the efficiency of information transmission.

While determining the optimal repeater, the first antenna in the repeater for users to transmit signals to the base station and user equipment is also determined. The first antenna may be an antenna corresponding to the first relay, which further improves the performance of the relay system.

The power allocation method provided by the embodiment of the present invention obtains the communication system parameter information and the user's transmission demand information; the user's transmission demand information includes the signal demodulation threshold of the user equipment; according to the signal demodulation threshold and the user's transmission Demand information determines the priority of user equipment to transmit data; according to the user's priority, the power of the signal transmitted by the repeater is allocated, which can flexibly allocate power, thereby improving the efficiency of information transmission.

Figure 2 is a schematic structural diagram of a power distribution device provided by an embodiment of the present invention.

As shown in Figure 2, a power distribution device provided by an embodiment of the present invention may include: an acquisition module 201, a determination module 202, and a distribution module 203.

The acquisition module 201 is used to obtain the communication system parameter information and the user's transmission requirement information; the user's transmission requirement information includes the signal demodulation threshold of the user equipment;

The determination module 202 is used to determine the priority of the user equipment to transmit data based on the signal demodulation threshold and the user's transmission requirement information;

The allocation module 203 is used to allocate the power of the signal transmitted by the repeater according to the priority of the user.

Optionally, in some embodiments of the present invention, the allocation module 203 is specifically used for:

Determine the first repeater according to the signal demodulation threshold of the user equipment;

According to the first relay, the priority of the user equipment to transmit data is determined.

Optionally, in some embodiments of the present invention, users include a first user and at least one second user;

Distribution module 203 is specifically used for:

Obtain the first channel vector between the base station and the repeater and the second channel vector between the repeater and the user equipment;

Determine the signal-to-noise ratio of the first user equipment and the signal-to-noise ratio of the second user equipment according to the first channel vector and the second channel vector;

When the signal-to-noise ratio of the first user equipment is not less than the signal demodulation threshold of the first user equipment, and the signal-to-noise ratio of at least one second user equipment is not less than the signal demodulation threshold of at least one second user equipment , determine multiple target repeaters;

determining a signal-to-noise ratio of the plurality of target repeaters demodulating the communication signal of the at least one second user equipment;

Determine the first repeater among the plurality of target repeaters. The first repeater is the one corresponding to the maximum signal-to-noise ratio among the signal-to-noise ratios of the communication signals that demodulate at least one second user equipment among the plurality of target repeaters. Target repeater.

Optionally, in some embodiments of the present invention, the determination module 202 is also configured to determine the first antenna in the repeater used to transmit signals to the base station and user equipment according to the signal demodulation threshold.

The power distribution device provided by the embodiment of the present invention is used to obtain the communication system parameter information and the user's transmission demand information through the acquisition module; the user's transmission demand information includes the signal demodulation threshold value of the user equipment; determine The module is used to determine the priority of user equipment to transmit data based on the signal demodulation threshold and the user's transmission demand information; the allocation module is used to allocate the power of the repeater's transmitted signal based on the user's priority, which can flexibly Perform power allocation to improve information transmission efficiency.

The power distribution device provided by the embodiment of the present invention executes each step in the method shown in Figure 1, and can achieve the technical effect of flexibly allocating power, thereby improving the efficiency of information transmission. For the sake of concise description, details will not be described here. .

FIG. 3 shows a schematic diagram of the hardware structure of an electronic device provided by an embodiment of the present invention.

The electronic device may include a processor 301 and a memory 302 storing computer program instructions.

Specifically, the above-mentioned processor 301 may include a central processing unit (CPU), or an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), or may be configured to implement one or more integrated circuits according to embodiments of the present invention.

Memory 302 may include bulk storage for data or instructions. By way of example and not limitation, the memory 302 may include a Hard Disk Drive (HDD), a floppy disk drive, flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a Universal Serial Bus (USB) drive or two or more A combination of many of the above. Memory 302 may include removable or non-removable (or fixed) media, where appropriate. Where appropriate, the memory 302 may be internal or external to the integrated gateway disaster recovery device. In certain embodiments, memory 302 is non-volatile solid-state memory. In certain embodiments, memory 302 includes read-only memory (ROM). Where appropriate, the ROM may be a mask-programmed ROM, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), electrically rewritable ROM (EAROM) or flash memory or A combination of two or more of these.

The processor 301 reads and executes the computer program instructions stored in the memory 302 to implement any power allocation method in the embodiment shown in FIG. 1 .

In one example, the electronic device may also include a communication interface 303 and a bus 310. Among them, as shown in Figure 3, the processor 301, the memory 302, and the communication interface 303 are connected through the bus 310 and complete communication with each other.

The communication interface 303 is mainly used to implement communication between modules, devices, units and/or equipment in the embodiment of the present invention.

Bus 310 includes hardware, software, or both, coupling the components of the electronic device to each other. By way of example, and not limitation, the bus may include Accelerated Graphics Port (AGP) or other graphics bus, Enhanced Industry Standard Architecture (EISA) bus, Front Side Bus (FSB), HyperTransport (HT) interconnect, Industry Standard Architecture (ISA) Bus, Infinite Bandwidth Interconnect, Low Pin Count (LPC) Bus, Memory Bus, Micro Channel Architecture (MCA) Bus, Peripheral Component Interconnect (PCI) Bus, PCI-Express (PCI-X) Bus, Serial Advanced Technology Attachment (SATA) bus, Video Electronics Standards Association Local (VLB) bus or other suitable bus or a combination of two or more of these. Where appropriate, bus 310 may include one or more buses. Although embodiments of the invention describe and illustrate a particular bus, the invention contemplates any suitable bus or interconnection.

The electronic device can execute the power allocation method in the embodiment of the present invention, thereby realizing the power allocation method described in conjunction with FIG. 1 .

In addition, combined with the power allocation method in the above embodiment, the embodiment of the present invention can be implemented by providing a computer storage medium. The computer storage medium stores computer program instructions; when the computer program instructions are executed by the processor, any one of the power allocation methods in the above embodiments is implemented.

It is to be understood that this invention is not limited to the specific arrangements and processes described above and illustrated in the drawings. For the sake of brevity, detailed descriptions of known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present invention is not limited to the specific steps described and shown. Those skilled in the art can make various changes, modifications and additions, or change the order between steps after understanding the spirit of the present invention.

The functional blocks shown in the above structural block diagram can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a function card, or the like. When implemented in software, elements of the invention are programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted over a transmission medium or communications link via a data signal carried in a carrier wave. "Machine-readable medium" may include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency (RF) links, and the like. Code segments may be downloaded via computer networks such as the Internet, intranets, and the like.

It should also be noted that the exemplary embodiments mentioned in the present invention describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above steps. That is to say, the steps may be performed in the order mentioned in the embodiments, or may be different from the order in the embodiments, or several steps may be performed simultaneously.

The above are only specific implementations of the present invention. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the above-described systems, modules and units can be referred to the foregoing method embodiments. The corresponding process will not be described again here. It should be understood that the protection scope of the present invention is not limited thereto. Any person familiar with the technical field can easily think of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should be covered. within the protection scope of the present invention.

Claims (6)

1. A power allocation method, characterized in that the method includes: Obtain communication system parameter information and user's transmission requirement information; the user's transmission requirement information includes the signal demodulation threshold value of the user equipment, and the communication system includes multiple repeaters; Obtaining the first channel vector between the base station and the relay and the second channel vector between the relay and user equipment, where the user equipment includes a first user equipment and at least one second user equipment; Determine the signal-to-noise ratio of the first user equipment and the signal-to-noise ratio of the second user equipment according to the first channel vector and the second channel vector; When the signal-to-noise ratio of the first user equipment is not less than the signal demodulation threshold of the first user equipment, and the signal-to-noise ratio of the at least one second user equipment is not less than the at least one second user equipment When the signal demodulation threshold value is reached, multiple target repeaters are determined; Determining a signal-to-noise ratio at which the plurality of target relays demodulates the communication signal of the at least one second user equipment; Determining a first repeater among the plurality of target repeaters, the first repeater being the signal noise that demodulates the communication signal of the at least one second user equipment among the plurality of target repeaters. The target repeater corresponding to the maximum signal-to-noise ratio in the comparison; Determine the priority of the user equipment to transmit data according to the first relay; The power of the signal transmitted by the repeater is allocated according to the priority of the user. 2. The method according to claim 1, characterized in that, the method further comprises: According to the signal demodulation threshold, the first antenna in the repeater used to transmit signals to the base station and user equipment is determined. 3. A power distribution device, characterized in that the device includes: An acquisition module, used to acquire communication system parameter information and user transmission requirement information; the user's transmission requirement information includes the signal demodulation threshold value of the user equipment; Determining module, configured to obtain the first channel vector between the base station and the relay and the second channel vector between the relay and the user equipment, where the user equipment includes a first user equipment and at least one second user equipment; According to the first channel vector and the second channel vector, the signal-to-noise ratio of the first user equipment and the signal-to-noise ratio of the second user equipment are determined; when the signal-to-noise ratio of the first user equipment is not is less than the signal demodulation threshold value of the first user equipment, and the signal-to-noise ratio of the at least one second user equipment is not less than the signal demodulation threshold value of the at least one second user equipment, determine multiple Target relay; determine the signal-to-noise ratio of the communication signal of the plurality of target relays that demodulates the at least one second user equipment; determine the first relay among the plurality of target relays, so The first relay is the target relay corresponding to the largest signal-to-noise ratio among the signal-to-noise ratios of the communication signals that demodulate the at least one second user equipment among the plurality of target relays; according to the first Repeaters, which determine the priority of user devices to transmit data; An allocation module, configured to allocate the power of the signal transmitted by the repeater according to the priority of the user. 4. The apparatus according to claim 3, characterized in that the determining module is further configured to determine, according to the signal demodulation threshold, the first step in the repeater used to transmit signals to the base station and the user equipment. antenna. 5. An electronic device, characterized in that the device includes: a processor and a memory storing computer program instructions; When the processor executes the computer program instructions, the method according to any one of claims 1-2 is implemented. 6. A computer storage medium, characterized in that computer program instructions are stored on the computer storage medium, and when the computer program instructions are executed by a processor, the method according to any one of claims 1-2 is implemented.