CN112436930A

CN112436930A - Communication method and device

Info

Publication number: CN112436930A
Application number: CN202011325301.3A
Authority: CN
Inventors: 杨水华; 柳卯; 刘胜杰
Original assignee: Beijing Cavige Technology Co ltd
Current assignee: Beijing Cavige Technology Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-03-02
Anticipated expiration: 2040-11-24
Also published as: CN112436930B

Abstract

The embodiment discloses a communication method and device, and relates to the field of communication. Wherein, the method comprises the following steps: allocating virtual transmission resources to a plurality of NT nodes; the virtual transmission resources comprise full duplex resources; transmitting the allocation result of the virtual transmission resources to a plurality of NT nodes; and when receiving transmission data inconsistent with the allocation result of the virtual transmission resources, starting the full duplex resources to transmit the data. By adopting the method, the expenses of transmission scheduling and node time synchronization are reduced, and the real-time performance of communication data transmission is improved.

Description

Communication method and device

Technical Field

The present disclosure relates to the field of communications, and in particular, to a communication method and apparatus.

Background

High-speed data buses are widely used in the fields of aerospace, weaponry, etc., and these bus technologies have higher requirements in terms of reliability and latency than conventional civilian communication systems. Some mature technical standards include: the very early MIL-STD-1553B standard, the FC-AE-1553 draft based on optical fiber, the AFDX standard of Ethernet, etc.

The wired medium provides a stable channel for signals, so that the communication system can stably operate in various environments. However, the wired medium may be gradually aged or broken down by vibration of the carrier or change of the external environment, thereby causing an error in the entire communication system. In particular, in the field of commercial aerospace, reusable spacecraft is becoming a new trend, which puts higher demands on the lifetime of communication networks; meanwhile, the wired medium has certain weight and volume, so that the effective load ratio of the aerospace equipment is limited to a great extent, therefore, the wired medium is more prone to be replaced by a wireless communication system in the fields of aerospace, weaponry and the like, the wired medium between nodes in the spacecraft is replaced by a wireless medium, and due to the fact that the constraint of the wired medium is removed, the equipment can be lighter, and the phenomena of connector aging or loosening and the like cannot occur.

In order to improve the reliability of a communication system, the communication system often adopts a self-organizing manner to realize multi-node communication, and if a node receives more urgent data to be transmitted, the node must transmit the data only after the current data frame is transmitted, for example, if an NT (Network terminal) node (hereinafter referred to as NT) receives urgent uplink data and the transmission frame at this time is a downlink data frame, the NT node must wait for the uplink frame to start transmission; or, if an NC (network controller) node (hereinafter, referred to as NC) receives an urgent downlink data at this time, and the next frame is an uplink frame, the NC can only wait for the next downlink frame to reallocate resources to complete transmission of the data; not only has larger time delay, but also greatly reduces the reliability of communication; therefore, a low-latency and highly reliable communication method is needed.

Disclosure of Invention

In view of the above technical problems in the prior art, the embodiments of the present disclosure provide a communication method and apparatus, which can solve the problems in the prior art, such as long communication delay, low communication reliability, and the like.

A first aspect of the embodiments of the present disclosure provides a communication method, including:

allocating virtual transmission resources to a plurality of network terminal nodes; the virtual transmission resources comprise full duplex resources;

sending the allocation result of the virtual transmission resource to a plurality of network terminal nodes;

and when receiving transmission data inconsistent with the allocation result of the virtual transmission resources, starting the full duplex resources to transmit the data.

In some embodiments, the method specifically comprises:

and when downlink transmission data is received and the next frame is an uplink frame, or when the network terminal node receives uplink transmission data in the downlink frame, starting the full-duplex resource and sending the downlink transmission data/the uplink transmission data in the full-duplex resource.

In some embodiments, the method further comprises: and reserving downlink signaling resources and reserving uplink signaling resources when the virtual transmission resources are allocated.

In some embodiments, the reserved downlink signaling resources include interrupt signaling, and the reserved uplink signaling resources include preemption signaling.

In some embodiments, said interrupt signalling and said preemption signalling are allocated on the same/different OFDM symbols.

In some embodiments, when downlink transmission data is received and a next frame is an uplink frame, an uplink signaling is received on the reserved uplink signaling resource, the full-duplex resource is started on the uplink frame, and the end of downlink transmission data is indicated through the interrupt signaling in the reserved downlink signaling resource.

In some embodiments, when the network terminal node receives uplink transmission data in a downlink frame, the network terminal node receives signaling on the reserved uplink signaling resource, starts the full-duplex resource on the downlink frame, and receives an uplink data packet.

In some embodiments, the method further comprises: when uplink transmission data containing a request signaling is received, a target network terminal node is obtained from the request signaling, and the uplink transmission data is sent to the target network terminal node.

In some embodiments, the method further comprises: and dynamically adjusting the virtual transmission resource positions and the allocated resource amount of the plurality of network terminal nodes.

A second aspect of an embodiment of the present disclosure provides a communication apparatus, including:

the distribution module is used for distributing virtual transmission resources to a plurality of network terminal nodes; the virtual transmission resources comprise full duplex resources;

a sending module, configured to send the allocation result of the virtual transmission resource to a plurality of network terminal nodes;

and the communication module is used for starting the full duplex resources to transmit data when receiving the transmission data which is inconsistent with the distribution result of the virtual transmission resources.

A third aspect of the embodiments of the present disclosure provides an electronic device, including:

a memory and one or more processors;

wherein the memory is communicatively coupled to the one or more processors, and the memory stores instructions executable by the one or more processors, and when the instructions are executed by the one or more processors, the electronic device is configured to implement the method according to the foregoing embodiments.

A fourth aspect of the embodiments of the present disclosure provides a computer-readable storage medium having stored thereon computer-executable instructions, which, when executed by a computing device, may be used to implement the method according to the foregoing embodiments.

A fifth aspect of embodiments of the present disclosure provides a computer program product comprising a computer program stored on a computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, are operable to implement a method as in the preceding embodiments.

The beneficial effects of the embodiment of the disclosure are: by allocating virtual transmission resources and starting full duplex resources when receiving transmission data inconsistent with the allocation result of the virtual transmission resources, the overhead of transmission scheduling and node time synchronization is reduced, and the real-time performance of communication data transmission is improved.

Drawings

The features and advantages of the present disclosure will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the disclosure in any way, and in which:

fig. 1 is a diagram illustrating a full duplex communication schematic of a communication node, according to some embodiments of the present disclosure;

fig. 2 is a schematic diagram of a communication system, shown in accordance with some embodiments of the present disclosure;

FIG. 3 is a flow chart of a method of communication shown in accordance with some embodiments of the present disclosure;

FIG. 4 is a schematic illustration of the actual operation of a communication system according to some embodiments of the present disclosure;

FIG. 5 is a schematic illustration of the actual operation of a communication system according to some embodiments of the present disclosure;

FIG. 6 is a schematic diagram of a normally transmitted data frame, according to some embodiments of the present disclosure;

fig. 7 is a schematic illustration of a downstream preemption transmission in accordance with some embodiments of the present disclosure;

FIG. 8 is a schematic illustration of the actual operation of a communication system according to some embodiments of the present disclosure;

FIG. 9 is a schematic illustration of the actual operation of a communication system according to some embodiments of the present disclosure;

fig. 10 is a schematic diagram of an OFDM symbol distribution, shown in accordance with some embodiments of the present disclosure;

FIG. 11 is a flow diagram illustrating a method of eliminating self-interference in accordance with some embodiments of the present disclosure;

FIG. 12 is a schematic block diagram of a communications device according to some embodiments of the present disclosure;

FIG. 13 is a schematic structural diagram of an electronic device in accordance with some embodiments of the present disclosure.

Detailed Description

In the following detailed description, numerous specific details of the disclosure are set forth by way of examples in order to provide a thorough understanding of the relevant disclosure. However, it will be apparent to one of ordinary skill in the art that the present disclosure may be practiced without these specific details. It should be understood that the use of the terms "system," "apparatus," "unit" and/or "module" in this disclosure is a method for distinguishing between different components, elements, portions or assemblies at different levels of sequence. However, these terms may be replaced by other expressions if they can achieve the same purpose.

It will be understood that when a device, unit or module is referred to as being "on" … … "," connected to "or" coupled to "another device, unit or module, it can be directly on, connected or coupled to or in communication with the other device, unit or module, or intervening devices, units or modules may be present, unless the context clearly dictates otherwise. For example, as used in this disclosure, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present disclosure. As used in the specification and claims of this disclosure, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are inclusive in the plural, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" are intended to cover only the explicitly identified features, integers, steps, operations, elements, and/or components, but not to constitute an exclusive list of such features, integers, steps, operations, elements, and/or components.

These and other features and characteristics of the present disclosure, as well as the methods of operation and functions of the related elements of structure and the combination of parts and economies of manufacture, will be better understood by reference to the following description and drawings, which form a part of this specification. It is to be expressly understood, however, that the drawings are for the purpose of illustration and description only and are not intended as a definition of the limits of the disclosure. It will be understood that the figures are not drawn to scale.

Various block diagrams are used in this disclosure to illustrate various variations of embodiments according to the disclosure. It should be understood that the foregoing and following structures are not intended to limit the present disclosure. The protection scope of the present disclosure is subject to the claims.

In the prior art, in order to improve the reliability of a communication system, the communication system often adopts a self-organizing manner to realize multi-node communication, and if a node receives more urgent data to be transmitted, the node must transmit the data after the current data frame is transmitted, for example, if an NT node receives urgent uplink data and the transmission frame is a downlink data frame, the NT node must wait for the uplink frame to start transmission; or, if the NC node receives an urgent downlink data at this time and the next frame is an uplink frame, the NC can only wait until the next downlink frame to reallocate resources to complete transmission of the data; not only has larger time delay, but also greatly reduces the reliability of communication; therefore, a low-latency and highly reliable communication method is needed.

The embodiment of the disclosure provides a low-latency field wireless communication system based on a Simultaneous co-Frequency Full Duplex (simultaneoustime-Frequency Full Duplex) technology. The method can ensure that the communication between the nodes can utilize the full duplex communication capability of the nodes to finish the data packet transmission at the fastest speed (the lowest time delay). For example, there are three nodes EP1, EP2, EP3, and at the same time, EP1 sends a message to EP2 through 1-10 subcarriers, EP1 sends a message to EP3 through 11-20 subcarriers, EP2 sends a message to EP1 through 41-50 subcarriers, EP2 sends a message to EP3 through 51-52 subcarriers, EP3 sends a message to EP1 through 71-80 subcarriers, EP3 sends a message to EP2 through 81-90 subcarriers, and all nodes perform parallel reception and demodulation on multiple subcarriers and then extract data sent to themselves according to subcarrier planning and message content. Therefore, full exchange communication channels for two-way communication are formed between the three nodes, all the channels are within a frequency point range, parallel FFT conversion can be realized, and efficient utilization of channel resources and operation resources is guaranteed.

The embodiment of the present disclosure further provides a full-duplex communication schematic diagram of a communication node, which at least includes a transmitter and a receiver, as shown in fig. 1, the full-duplex communication schematic diagram mainly works in that the transmitter cancels an interference signal received by the receiver through a self-interference cancellation method on a transmitted signal; specific self-interference cancellation can be divided into RF (Radio Frequency) self-interference cancellation and baseband self-interference cancellation; the self-interference cancellation technique is not discussed much in the present invention, and it is generally considered that a communication node transmits signals without causing interference to received signals at the same time and the same frequency point in a full-duplex mode.

Although communication among multiple nodes can also be achieved using an ad hoc approach, the present invention will focus on an architecture with centralized scheduling capability, i.e., one central node plans the communication among all nodes, similar to the master-slave architecture of FC-AE-1553. However, different from the optical fiber bus protocol, the node in the invention can realize multi-user multiplexing communication in an OFDM mode, that is, in a communication frame, different users can simultaneously communicate with the control node through different subcarriers.

The embodiment of the present disclosure further provides a method for transmitting full duplex communication in a downlink frame, and since downlink communication is scheduled by an NC node, downlink and uplink data can be planned in advance, as shown in fig. 2, a schematic diagram of a communication system is shown, where NT includes NT1, NT2, and NT3, where NT1 performs duplex communication with NC, and NC performs downlink simplex communication with NT2 and NT 3; the NT1, the NT2 and the NT3 allocate communication resources on different carriers in a frequency division multiplexing mode; wherein, the uplink and the downlink of NT1 are distributed on the same carrier; generally, one frame has 3 OFDM symbols in total, and since the NC can pack data arriving at the physical layer at the first time and schedule downlink resources, and can also schedule uplink transmission in the downlink frame, downlink data can always be transmitted to NT in the shortest time. However, there are different challenges in upstream communication: when a data arrives at the physical layer of NT, for example, NT1 receives a data sent to NC, or NT1 receives a data sent to NT 2; at this time, NT1 can only wait for the uplink frame to send the request signaling and send the physical signal, which means that the uplink data originating from the NT end may face a large delay; if the frame for sending the request signaling and the frame for sending the data packet are different frames, it means that the delay of the uplink data will become larger. However, such delays can have fatal consequences in the low latency scenarios of interest in the present invention, for example, an empty missile at a flight speed of 1200 m/s can have a 0.6 m deviation even with a delay of only 2 data frames (about 0.5 ms). Therefore, a communication method with almost the lowest delay will be given in the following methods.

The embodiment of the present disclosure discloses a communication method, as shown in fig. 3, specifically including:

s101, distributing virtual transmission resources to a plurality of NT nodes; the virtual transmission resources comprise full duplex resources;

s102, sending the distribution result of the virtual transmission resources to a plurality of NT nodes;

s103, when receiving the transmission data inconsistent with the distribution result of the virtual transmission resources, starting the full duplex resources to transmit the data.

In some embodiments, the method specifically comprises: and when downlink transmission data is received and the next frame is an uplink frame, or when uplink transmission data is received in the downlink frame, starting the full-duplex resource, and sending the downlink transmission data/the uplink transmission data in the full-duplex resource.

Specifically, the NC ensures that virtual transmission resources are allocated to each NT in each uplink frame and downlink frame, regardless of whether the corresponding NT in the uplink frame or downlink frame has a real data transmission need, to ensure that each NT in each uplink frame or downlink frame has at least one resource of a minimum scheduling unit.

Further, the NC indicates allocation of virtual transmission resources through resource allocation signaling, wherein a subset of the allocated virtual transmission resources may all be full duplex resources. In the full-duplex resource, the NC and the NT carry out self-interference elimination, and the simultaneous receiving and transmitting of signals can be ensured in the full-duplex resource.

Furthermore, when the NC receives the burst downlink data and the next frame is an uplink frame, the NC sends the corresponding signaling and the downlink data in the full duplex resource corresponding to the NT in the next frame; and if the NT receives the uplink transmission data in one downlink frame, the NT sends the uplink transmission data in the corresponding full-duplex resource. Optionally, the uplink data includes a request signaling.

In some embodiments, as shown in fig. 4, NT1, NT2, NT3 are each assigned virtual transmission resources, and a specific transmission resource assignment may be given by dynamic signaling or semi-static signaling of the NC. Wherein NT1 has 2 sub-carriers allocated, of which 1 is a full duplex resource; NT2 has 3 sub-carriers allocated, 2 of which are full duplex resources; NT3 has 3 sub-carriers allocated, 1 of which is full duplex resource. In the specific transmission, the specific transmission signaling indicates the specific transmission condition in the virtual transmission resource. Wherein, the NT1 performs downlink transmission in all virtual transmission resources, and at the same time, the NT1 receives the physical layer packet in burst, so that the uplink packet is sent in the full duplex resources in the virtual transmission resources; for NT2, although the reserved resources include full duplex resources, since only data from NC to NT2 is currently available, all reserved resources are occupied by downlink transmission, and finally, NT3 allocates virtual transmission resources, but there is no actual traffic, and the actual transmission condition is that there is no data in uplink and downlink.

An advantage of the disclosed embodiments is that the potential delay is reduced to almost the lowest, i.e. the length of one data frame, which if small enough involved will control the delay of the overall physical layer communication to be below the order of milliseconds, and if higher frequency bins are used, e.g. millimeter-band bins, the delay may be controlled to be in the order of tenths of milliseconds. Obviously, the reservation of the virtual transmission resources also causes a certain waste of spectrum utilization efficiency, but unlike a communication system with a large number of nodes, the near field communication often has richer spectrum resources, so that the method of exchanging the time delay by the spectrum efficiency is matched with a scene.

In some embodiments, the method further comprises: when uplink transmission data containing a request signaling is received, a target NT is obtained from the request signaling, and the uplink transmission data is sent to the target NT.

In particular, the full duplex mode also provides a faster possibility. As shown in fig. 5, since the near field communication is mostly communication between nodes, not data accessing the internet through a core network. This means that the communication between the nodes needs to be forwarded through the NC, which also has a certain delay effect. As shown in the following figure, in full-duplex burst uplink transmission of NT1, where the data packet is addressed to NT2, NT1 may include request signaling in the uplink transmission data; the destination node of the request signaling containing the current data packet is NT 2. At this time, since NT2 is simplex downstream transmission, NT2 can also listen to signals on the whole frequency band, and when it receives upstream data of NT1 (as shown by the dotted line), it can directly receive the subsequent data packet. That is, at this time, forwarding by the NC is omitted, and NT2 has sent the data directly to NT 1.

In some embodiments, the method further comprises: the virtual transmission resource locations and the allocated resource amounts of the multiple NTs are dynamically adjusted.

Specifically, in the allocation of virtual resources, the NC may dynamically adjust the resource location allocated and the allocated resource amount for each NT; the NC can adjust according to the data volume of the NT request and adjust the proportion of full duplex resources; it should be noted that the virtual resource allocation is not based on the current known traffic volume, otherwise, it may happen that the resource allocated to a specific NT in a frame is zero, and at this time, if a burst traffic occurs, neither NC nor NT can initiate transmission immediately at the current frame, resulting in increased delay.

In some embodiments, the terminal signalling and the preemption signalling are allocated on the same/different OFDM symbols.

In some embodiments, when uplink transmission data is received in the downlink frame, signaling is received on the reserved uplink signaling resource, the full duplex resource is started on the downlink frame, and an uplink data packet is received.

The communication method disclosed in the embodiment of the present disclosure organizes uplink and downlink transmission by a frame structure in a wireless transmission system based on OFDM. One frame is composed of a plurality of OFDM symbols and transmission from NC to NT or NT to NC or NT to NT is realized within one frame; this also means that the transmission delay is also limited by the length of the frame, and in a low-delay and high-reliability communication scenario, if an NT receives an urgent uplink data packet, and the transmission frame is a downlink data frame, the NT must wait at least for the uplink data frame to start transmission. On the contrary, if the NC is performing a downlink transmission and another data is bursted, the NC can only wait until the next downlink frame to reallocate resources to complete the burst.

In the disclosed embodiment, the application of Pre-preemption (Pre-preemption) transmission is disclosed, i.e. the NC or NT suspends the originally planned transmission and changes the data, target, or direction of transmission before the current data transmission has not ended, e.g. at the middle OFDM symbol of a frame. Fig. 6 is a schematic diagram of a normally transmitted data frame, where the NC assigns the current frame to NT1, which contains 6 OFDM symbols in total, and fig. 7 is a schematic diagram of a downstream preemption transmission, where the NC intends to transmit a packet over NT1, where the packet occupies 6 OFDM symbols. At this point, the NC receives the burst data, which is destined for NT2, and at this point the NC initiates a downstream preemption transmission. In preemption transmission, the NC suspends the current transmission of NT1 and transmits NT2 data in the last 3 OFDM symbols to NT2, and NT2 receives a preemption frame consisting of 3 OFDM symbols when monitoring control signaling (not shown).

Although the method described above supports the preemptive transmission, it is still a simplex transmission method, and even though the preemptive transmission in fig. 7 is an uplink transmission from NT2 to NC, the system can only receive and transmit on the same carrier at the same time point. In order to further reduce the transmission time delay of a communication system, a full-duplex-based preemption transmission method is provided, and the method can utilize the characteristic of simultaneous same-frequency transceiving.

In downlink transmission, a transmitting terminal (NC) reserves downlink signaling resources and uplink signaling resources, and if the transmitting terminal receives an emergency downlink data packet, the method can be used to interrupt the current downlink transmission and reallocate the resources to a new terminal. The transmitting terminal eliminates the interference brought by the current downlink transmission data to the reserved uplink signaling resource through self-interference elimination, so that the reserved uplink resource can be used for receiving uplink signaling.

Specifically, if NT burst uplink transmission of the current downlink transmission is performed, the user may initiate uplink transmission on the current resource and transmit signaling on the reserved uplink signaling resource. And the NC receives the signaling on the uplink reserved signaling resource, starts the duplex communication on the downlink frequency band and receives the uplink data packet. The specific transmission is shown in fig. 8, where NT1 sends a preemption request at the 3 rd OFDM symbol where uplink signaling resources are reserved, and sends uplink transmission at the last 3 OFDM symbols. That is, full duplex communication at the transmission is preempted for NC and NT 1.

And if the NT which has no downlink transmission currently receives the urgent uplink data packet, sending a signaling on the uplink reserved signaling resource. The NC receives the uplink signaling on the reserved resource, starts duplex communication, and at the moment, the NC can stop downlink transmission of the original plan NT and indicate the end of the transmission through the downlink signaling resource. As shown in fig. 9, where NT2 sends preemption signaling on the uplink signaling resource of the third OFDM symbol, the NC sends NT1 interrupt signaling on the downlink signaling resource of the fourth OFDM symbol. In fig. 9, the NC is in full duplex state when only two signals are transmitted, and data transmission uses only simplex transmission.

In some embodiments, as shown in fig. 10, the downlink reserved signaling resources and the uplink reserved resources may be allocated in the same OFDM symbol. At this time, since the states indicated by the downlink signaling are limited, for example, 3-bit downlink signaling means that even though encoded, the downlink signaling has only a maximum of 8 signal states. Therefore, the interference mode of the transmitter is more predictable, and the transmitter can better perform self-interference elimination; for example, the transmitter may repeatedly train parameters of the self-interference canceller corresponding to 8 signaling states in an idle stage, thereby ensuring that the parameters of the self-interference canceller are in an optimized state when each downlink signaling is sent, so that interference at uplink signaling resources is eliminated more completely, and successful reception of uplink burst signaling is ensured.

The embodiment of the present disclosure further discloses a method for eliminating self-interference, as shown in fig. 11, specifically including:

s201, acquiring a downlink signaling;

s202, generating a self-interference signal according to the downlink signaling;

s203, enabling a preset self-interference elimination parameter;

and S204, sending a downlink signaling and finishing self-interference elimination.

Specifically, the reserved downlink signaling resources and the reserved uplink signaling resources are distributed on 6 adjacent carriers of the first OFDM symbol, and when the NC obtains a downlink signaling to be issued, the transmitting end of the NC will cause self-interference to the receiving end. However, since the resource location is fixed and the signaling sent is also known, the NC may generate a self-interference signal and call an optimal self-interference cancellation parameter, for example, 001,010,011 corresponds to different self-interference cancellation parameters and self-interference signals, respectively. The set of parameters and signals remain stable for a period of time, and therefore, a better self-interference cancellation effect is generated. This method of self-interference cancellation is not possible in randomly generated data signals.

The advantages of the disclosed scheme are:

1) the invention adopts full duplex communication based on subcarrier planning, thus reducing the expenses of transmission scheduling and node time synchronization;

2) the invention realizes full duplex communication on one frequency point, each node can initiate data transmission to some other node at any time without waiting for a specific time slice, thereby improving the real-time property of transmission;

3) the invention is more beneficial to constructing a wireless ad hoc network without a center.

The embodiment of the present disclosure further provides a communication apparatus 300, as shown in fig. 12, including:

an allocating module 301, configured to allocate virtual transmission resources to a plurality of NT nodes; the virtual transmission resources comprise full duplex resources;

a sending module 302, configured to send the allocation result of the virtual transmission resource to a plurality of NT nodes;

a communication module 303, configured to start the full duplex resource to perform data transmission when receiving transmission data inconsistent with the allocation result of the virtual transmission resource.

Referring to fig. 13, a schematic diagram of an electronic device provided for an embodiment of the present disclosure, the electronic device 600 includes:

memory 630 and one or more processors 610;

wherein the memory 630 is communicatively coupled to the one or more processors 610, the memory 630 having stored therein instructions 632 executable by the one or more processors 610, the instructions 632 being executable by the one or more processors 610 to cause the one or more processors 610 to perform the methods of the foregoing embodiments of the present application.

Specifically, the processor 610 and the memory 630 may be connected by a bus or other means, such as a bus 640. Processor 610 may be a Central Processing Unit (CPU). The Processor 610 may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, or combinations thereof.

The memory 630, as a non-transitory computer readable storage medium, may be used for storing non-transitory software programs, non-transitory computer executable programs, and modules, such as the cascaded progressive network in the embodiments of the present application. The processor 610 executes various functional applications of the processor and data processing by executing non-transitory software programs, instructions, and modules 632 stored in the memory 630.

The memory 630 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created by the processor 610, and the like. Further, the memory 630 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, memory 630 optionally includes memory located remotely from processor 610, which may be connected to processor 610 via a network, such as through communications interface 620. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

An embodiment of the present application further provides a computer-readable storage medium, in which computer-executable instructions are stored, and the computer-executable instructions are executed to perform the method in the foregoing embodiment of the present application.

The foregoing computer-readable storage media include physical volatile and nonvolatile, removable and non-removable media implemented in any manner or technology for storage of information such as computer-readable instructions, data structures, program modules or other data. The computer-readable storage medium specifically includes, but is not limited to, a USB flash drive, a removable hard drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), an erasable programmable Read-Only Memory (EPROM), an electrically erasable programmable Read-Only Memory (EEPROM), flash Memory or other solid state Memory technology, a CD-ROM, a Digital Versatile Disk (DVD), an HD-DVD, a Blue-Ray or other optical storage, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer.

While the subject matter described herein is provided in the general context of execution in conjunction with the execution of an operating system and application programs on a computer system, those skilled in the art will recognize that other implementations may also be performed in combination with other types of program modules. Generally, program modules include routines, programs, components, data structures, and other types of structures that perform particular tasks or implement particular abstract data types. Those skilled in the art will appreciate that the subject matter described herein may be practiced with other computer system configurations, including hand-held devices, multiprocessor systems, microprocessor-based or programmable consumer electronics, minicomputers, mainframe computers, and the like, as well as distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote memory storage devices.

Those of ordinary skill in the art will appreciate that the various illustrative elements and method steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method according to the embodiments of the present application.

In summary, the present disclosure provides a communication method, an apparatus, an electronic device and a computer-readable storage medium thereof. By allocating virtual transmission resources and starting full duplex resources when receiving transmission data inconsistent with the allocation result of the virtual transmission resources, the overhead of transmission scheduling and node time synchronization is reduced, and the real-time performance of communication data transmission is improved.

It is to be understood that the above-described specific embodiments of the present disclosure are merely illustrative of or illustrative of the principles of the present disclosure and are not to be construed as limiting the present disclosure. Accordingly, any modification, equivalent replacement, improvement or the like made without departing from the spirit and scope of the present disclosure should be included in the protection scope of the present disclosure. Further, it is intended that the following claims cover all such variations and modifications that fall within the scope and bounds of the appended claims, or equivalents of such scope and bounds.

Claims

1. A method of communication, comprising:

2. The method according to claim 1, characterized in that it comprises in particular:

3. The method of claim 2, further comprising: and reserving downlink signaling resources and reserving uplink signaling resources when the virtual transmission resources are allocated.

4. The method of claim 3, wherein reserving downlink signaling resources comprises interrupt signaling, and wherein reserving uplink signaling resources comprises preempting signaling.

5. The method of claim 4, wherein the interrupt signaling and the preemption signaling are allocated on the same/different OFDM symbols.

6. The method of claim 4, wherein when downlink transmission data is received and a next frame is an uplink frame, receiving uplink signaling on the reserved uplink signaling resources, starting the full-duplex resources on the uplink frame, and indicating an end of downlink transmission data through the interrupt signaling in the reserved downlink signaling resources.

7. The method of claim 4, wherein the network termination node receives signaling on the reserved uplink signaling resources when receiving uplink transmission data in a downlink frame, and wherein the full duplex resources are enabled on the downlink frame to receive uplink data packets.

8. The method of claim 1, further comprising: when uplink transmission data containing a request signaling is received, a target network terminal node is obtained from the request signaling, and the uplink transmission data is sent to the target network terminal node.

9. The method of claim 1, further comprising: and dynamically adjusting the virtual transmission resource positions and the allocated resource amount of the plurality of network terminal nodes.

10. A communications apparatus, comprising: