Communication method and apparatus

Abstract

A communication method and apparatus, which relate to the technical field of communications, and can make a terminal device better access a network device, thereby improving the communication quality of the terminal device and the network device. The method comprises: when meeting a first preset condition, a first network device adjusting a beam from a first beam to a second beam; and after the beam is adjusted to the second beam, adjusting the beam from the second beam to the first beam when a second preset condition is met, wherein the first preset condition is as follows: within the coverage of the first network device, the number of terminal devices, the movement speeds of which are greater than or equal to a first preset threshold value, is greater than or equal to a second preset threshold value; the beam type of the first beam is a narrow beam, and the beam type of the second beam is a wide beam; and the second preset condition is as follows: within the coverage of the first network device, the number of terminal devices, the movement speeds of which are greater than or equal to the first preset threshold value, is smaller than the second preset threshold value.

Description

Communication method and device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on August 11, 2023, with application number 202311018767.2 and application name “Communication Method and Device,” the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technologies, and in particular to communication methods and devices. Background Art

[0003] In a communication system, a terminal device can access a network device based on a synchronization system / physical broadcast channel block (SS / PBCH block, also referred to as SSB) beam fixedly configured by the network device.

[0004] However, during the communication process of the terminal device, when the terminal device moves faster, the faster movement speed will cause the position to change faster, and the beam may be switched frequently, which will cause the signal of the terminal device to fluctuate greatly and become unstable, thereby reducing the communication quality.

[0005] Therefore, how to better connect terminal devices to network devices and improve the communication quality between terminal devices and network devices has become an urgent problem to be solved.

[0006] Summary of the Invention

[0007] The present application provides a communication method and apparatus, which can enable a terminal device to better access a network device and improve the communication quality between the terminal device and the network device.

[0008] In a first aspect, a communication method is provided. The method can be executed by a first network device, or by a component of the first network device, such as a processor, chip, or chip system of the first network device. It can also be implemented by a logic module or software that can implement all or part of the functions of the first network device. The method includes: when the first network device meets a first preset condition, adjusting the beam from the first beam to the second beam; after adjusting the beam to the second beam, when a second preset condition is met, adjusting the beam from the second beam to the first beam. The first preset condition is that within the coverage area of ​​the first network device, the number of terminal devices with a moving speed greater than or equal to the first preset threshold is greater than or equal to the second preset threshold; the beam type of the first beam is a narrow beam, and the beam type of the second beam is a wide beam; the second preset condition is that within the coverage area of ​​the first network device, the number of terminal devices with a moving speed greater than or equal to the first preset threshold is less than the second preset threshold.

[0009] Based on the first aspect, when the first preset condition is met, the first network device adjusts the beam from a narrow beam (i.e., the first beam) to a wide beam (i.e., the second beam), so that the terminal device with a mobile speed greater than or equal to the first preset threshold no longer needs to switch beams frequently when accessing the first network device, thereby reducing the signal fluctuation of the terminal device, improving the reliability of the terminal device accessing the first network device, and improving the communication quality between the terminal device and the first network device; when the second preset condition is met, the number of terminal devices with a mobile speed greater than or equal to the first preset threshold within the coverage range of the first network device is small, and the beam of the first network device can be adjusted from a wide beam (i.e., the second beam) to a narrow beam (i.e., the first beam), which can increase the coverage range of the first network device, improve the reference signal receiving power (RSRP) within the coverage range of the first network device, and increase the number of terminal devices accessing the first network device.

[0010] In one possible implementation, when the first preset condition is met, the first network device sends first indication information to the second network device; wherein the first indication information is used to instruct the second network device to adjust the beam to a wide beam.

[0011] Based on this possible implementation, when the first preset condition is met, the first network device sends a first indication message to the second network device, which can enable the second network device to adjust the beam to a wide beam in advance, thereby avoiding as much as possible the situation where the second network device fails to adjust the beam to a wide beam in time due to time delay, resulting in a decrease in communication quality. Terminal devices within the coverage area of ​​the second network device and with a moving speed greater than or equal to the first preset threshold will no longer frequently switch beams, thereby reducing the signal fluctuation of the terminal device and improving the communication performance of the terminal device and the second network device.

[0012] In one possible implementation, the first network device sends a second indication message to the second network device; wherein the second indication message is used to instruct the second network device to adjust the beam to a narrow beam when a third preset condition is met, and the third preset condition is that within the coverage range of the second network device, the number of terminal devices with a moving speed greater than or equal to the first preset threshold is less than the second preset threshold.

[0013] Based on this possible implementation, the first network device can instruct the second network device to adjust the wide beam to a narrow beam when the third preset condition is met, so as to increase the coverage range of the second network device, improve the RSRP within the coverage range of the second network device, and increase the number of terminal devices accessing the second network device.

[0014] In one possible implementation, a first network device determines an average modulation and coding scheme (MCS) order corresponding to one or more terminal devices that meet a fourth preset condition within a preset time; if the average MCS order is greater than a third preset threshold, first configuration information is sent to the one or more terminal devices that meet the fourth preset condition; or, if the average MCS order is less than or equal to the third preset threshold, second configuration information is sent to the one or more terminal devices that meet the fourth preset condition. The fourth preset condition is that the mobile speed within the coverage area of ​​the first network device is greater than or equal to the first preset threshold; the first configuration information is used to indicate a cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) waveform; and the second configuration information is used to indicate a discrete Fourier transform-spread OFDM (DFT-S-OFDM) waveform.

[0015] Based on this possible implementation, the first network device can determine the average MCS order of terminal devices whose moving speed is greater than or equal to the first preset threshold within the coverage area of ​​the first network device within a preset time; when the average MCS order is greater than a third preset threshold, the terminal device can be instructed to use a CP-OFDM waveform for data transmission through the first configuration information, which can reduce the transmission power of the terminal device and reduce power consumption; when the MCS order is less than or equal to the third preset threshold, the terminal device can be instructed to use a DFT-S-OFDM waveform for data transmission through the second configuration information, which can increase the transmission power of the terminal device, avoid distortion, and improve communication performance. At the same time, sending the first configuration information or the second configuration information to the terminal device to fix the configuration waveform can avoid frequent reconfiguration of the waveform for the terminal device as much as possible, thereby reducing the risk of dropped calls for the terminal device, enabling the terminal device to obtain optimal performance, and improving the communication quality between the terminal device and the first network device.

[0016] In a possible implementation, the first network device determines the moving speed of the terminal device within the coverage of the first network device according to one or more of the following parameters: Doppler shift or global positioning system speed (GPS speed).

[0017] Based on this possible implementation, the first network device may determine the moving speed of the terminal device according to parameters such as the Doppler frequency shift or GPS speed of a signal sent by the terminal device to the first network device.

[0018] In a second aspect, a communication method is provided. The method can be executed by a second network device, or by a component of the second network device, such as a processor, chip, or chip system of the second network device. It can also be implemented by a logic module or software that implements all or part of the functions of the second network device. The method includes: the second network device receiving first indication information from a first network device; and adjusting a beam from a third beam to a fourth beam based on the first indication information. The first indication information is used by the second network device to adjust the beam to a wide beam; the beam type of the third beam is a narrow beam, and the beam type of the fourth beam is a wide beam.

[0019] Based on the second aspect, the second network device receives the first indication information from the first network device and can adjust the beam from a narrow beam (i.e., the third beam) to a wide beam (i.e., the fourth beam) in advance. When the terminal device enters the coverage of the second network device, it can access the second network device through the wide beam of the second network device, thereby avoiding as much as possible the situation where the terminal device drops calls due to the delay in not adjusting to the wide beam in time; at the same time, the second network device adjusts the beam from a narrow beam (third beam) to a wide beam (fourth beam), so that the terminal device with a moving speed greater than or equal to the first preset threshold no longer switches the beam frequently, thereby reducing the signal fluctuation of the terminal device, improving the reliability of the terminal device accessing the second network device, and improving the communication quality between the terminal device and the second network device.

[0020] In one possible implementation, the second network device receives second instruction information from the first network device and adjusts the beam from the fourth beam to the third beam based on the second instruction information. The second instruction information is used to instruct the second network device to adjust the beam to a narrow beam when a third preset condition is met, where the third preset condition is that the number of terminal devices with a moving speed greater than or equal to a first preset threshold within the coverage area of ​​the second network device is less than a second preset threshold.

[0021] Based on this possible implementation, the second network device can adjust the beam from a wide beam (i.e., the fourth beam) to a narrow beam (i.e., the third beam) according to the second indication information, which can increase the coverage range of the second network device, improve the RSRP within the coverage range of the second network device, and increase the number of terminal devices accessing the second network device.

[0022] In a possible implementation, when the second network device meets the third preset condition, the beam is adjusted from the fourth beam to the third beam.

[0023] Based on this possible implementation, when the third preset condition is met, the second network device can adjust the beam from a wide beam (i.e., the fourth beam) to a narrow beam (i.e., the third beam), which can increase the coverage range of the second network device, improve the RSRP within the coverage range of the second network device, and increase the number of terminal devices accessing the second network device; compared to the second network device adjusting the beam according to the second indication information from the first network device, the second network device can adjust the beam according to the third preset condition, which can reduce transmission overhead, avoid as much as possible the situation where the beam is always a wide beam due to the second network device not receiving the second indication information, and improve the reliability of communication.

[0024] In one possible implementation, when the second network device meets the fifth preset condition, the beam is adjusted from the third beam to the fourth beam; wherein the fifth preset condition is that within the coverage range of the second network device, the number of terminal devices with a moving speed greater than or equal to the first preset threshold is greater than or equal to the second preset threshold.

[0025] Based on this possible implementation, when the fifth preset condition is met, the second network device adjusts the beam from a narrow beam (i.e., the third beam) to a wide beam (i.e., the fourth beam), so that the terminal device with a moving speed greater than or equal to the first preset threshold no longer switches the beam frequently, thereby reducing the signal fluctuation of the terminal device, improving the reliability of the terminal device accessing the second network device, and improving the communication quality between the terminal device and the second network device; compared with adjusting the beam according to the first indication information, the second network device adjusts the beam according to the fifth preset condition to reduce transmission overhead, avoid as much as possible the situation where the beam is always a narrow beam due to the second network device not receiving the first indication information, and can improve the reliability of communication.

[0026] In a possible implementation, the first network device determines the moving speed of the terminal device within the coverage of the first network device according to one or more of the following parameters: Doppler frequency shift, or GPS speed.

[0027] Based on this possible implementation, the second network device may determine the moving speed of the terminal device according to the Doppler frequency shift or GPS speed parameter of the signal sent by the terminal device to the first network device.

[0028] In a third aspect, a communication device is provided for implementing the method described in the first aspect. The communication device may be the first network device described in the first aspect, or a device or component included in the first network device, such as a chip.

[0029] The communication device includes modules, units, or means corresponding to the above-mentioned method, which can be implemented by hardware, software, or hardware executing corresponding software implementation. The hardware or software includes one or more modules or units corresponding to the above-mentioned functions.

[0030] In some possible implementations, the communication device may include a processing module and a transceiver module. The transceiver module may include a sending module and a receiving module, respectively used to implement the sending and receiving functions of the first aspect and any possible implementation thereof. The processing module may be used to implement the processing functions of the first aspect and any possible implementation thereof. Exemplarily, the processing module is used to adjust the beam from the first beam to the second beam when the first network device meets a first preset condition; wherein the first preset condition is that within the coverage area of ​​the first network device, the number of terminal devices with a moving speed greater than or equal to the first preset threshold is greater than or equal to the second preset threshold; the beam type of the first beam is a narrow beam, and the beam type of the second beam is a wide beam. The processing module is further used to adjust the beam from the second beam to the first beam when a second preset condition is met after the beam is adjusted to the second beam; wherein the second preset condition is that within the coverage area of ​​the first network device, the number of terminal devices with a moving speed greater than or equal to the first preset threshold is less than the second preset threshold.

[0031] Optionally, the transceiver module and processing module of the communication device in the third aspect can also perform the corresponding functions in the above-mentioned first aspect or any possible implementation of the first aspect. Please refer to the detailed description in the method example for details. The beneficial effects that can be achieved can also be referred to the above-mentioned related content.

[0032] In a fourth aspect, a communication device is provided for implementing the method described in the second aspect. The communication device may be the second network device described in the second aspect, or a device or component included in the second network device, such as a chip.

[0033] The communication device includes modules, units, or means corresponding to the above-mentioned method, which can be implemented by hardware, software, or hardware executing corresponding software implementation. The hardware or software includes one or more modules or units corresponding to the above-mentioned functions.

[0034] In some possible implementations, the communication device may include a processing module and a transceiver module. The transceiver module may include a sending module and a receiving module, respectively used to implement the sending and receiving functions in the above-mentioned second aspect and any possible implementation thereof. The processing module may be used to implement the processing functions in the above-mentioned second aspect and any possible implementation thereof. Exemplarily, the transceiver module is used to receive first indication information from a first network device; wherein the first indication information is used for the second network device to adjust the beam to a wide beam. The processing module is used to adjust the beam from a third beam to a fourth beam according to the first indication information; wherein the beam type of the third beam is a narrow beam, and the beam type of the fourth beam is a wide beam.

[0035] Optionally, the transceiver module and processing module of the communication device in the fourth aspect can also perform the corresponding functions in the above-mentioned second aspect or any possible implementation of the second aspect. Please refer to the detailed description in the method example for details. The beneficial effects that can be achieved can also be referred to the above-mentioned related content.

[0036] In a fifth aspect, a communication device is provided, comprising: at least one processor configured to cause the communication device to perform the method described in any one of the above aspects or any possible implementations of any one of the aspects by executing computer instructions stored in a memory or through a logic circuit. The communication device may be the first network device in the first aspect or any possible implementation of the first aspect, or a device or component included in the first network device, such as a chip; or the communication device may be the second network device in the second aspect or any possible implementation of the second aspect, or a device or component included in the second network device, such as a chip.

[0037] In some possible implementations, the communication device further includes a memory for storing computer instructions and / or configuration files of logic circuits. Optionally, the memory is integrated with the processor, or the memory is independent of the processor.

[0038] In a sixth aspect, a communication device is provided, comprising: a processor and a communication interface; the communication interface is configured to input and / or output signals; and the processor is configured to execute a computer program or instruction to cause the communication device to perform the method described in any of the above aspects. The communication device may be the first network device in the first aspect or any possible implementation of the first aspect, or a device or component, such as a chip, included in the first network device; or the communication device may be the second network device in the second aspect or any possible implementation of the second aspect, or a device or component, such as a chip, included in the second network device.

[0039] In some possible implementations, the communication interface is an interface circuit for reading and writing computer instructions. For example, the interface circuit is used to receive computer execution instructions (computer execution instructions are stored in a memory, may be read directly from the memory, or may pass through other devices) and transmit them to the processor.

[0040] In some possible implementations, the communication interface is used to communicate with a module outside the communication device.

[0041] In some possible implementations, the communication device may be a chip or a chip system. When the device is a chip system, the chip system may include the chip, or may include the chip and other discrete devices.

[0042] In a seventh aspect, a communication device is provided, comprising: a logic circuit and an interface circuit; the interface circuit is configured to input and / or output information; and the logic circuit is configured to execute the method described in any of the above aspects, processing the input information and / or generating output information. The communication device may be the first network device in the first aspect or any possible implementation of the first aspect, or a device or component, such as a chip, included in the first network device; or the communication device may be the second network device in the second aspect or any possible implementation of the second aspect, or a device or component, such as a chip, included in the second network device.

[0043] In an eighth aspect, a computer-readable storage medium is provided, in which a computer program or instruction is stored. When the computer program or instruction is executed by a processor, the method described in any one of the above aspects is executed.

[0044] In a ninth aspect, a computer program product is provided, which, when executed by a processor, enables the method described in any one of the above aspects to be executed.

[0045] It can be understood that when the communication device provided in any one of the third to seventh aspects is a chip, the above-mentioned sending action / function can be understood as output information, and the above-mentioned receiving action / function can be understood as input information.

[0046] Among them, the technical effects brought about by any implementation method from the third aspect to the ninth aspect can refer to the technical effects brought about by the above-mentioned first aspect or any possible implementation of the first aspect, or refer to the technical effects brought about by the above-mentioned second aspect or any possible implementation of the second aspect, and will not be repeated here.

[0047] In the tenth aspect, a communication system is provided, which includes the first network device described in the first aspect or any possible implementation of the first aspect, or may also include the second network device described in the second aspect or any possible implementation of the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] FIG1 is a schematic diagram of an SSB narrow beam provided by the present application;

[0049] FIG2 is a schematic diagram of an SSB wide beam provided by the present application;

[0050] FIG3 is a schematic diagram of a communication system provided by the present application;

[0051] FIG4 is a schematic structural diagram of a communication device provided by the present application;

[0052] FIG5 is an interactive diagram of a communication method provided by the present application;

[0053] FIG6 is a schematic structural diagram of a first network device provided by the present application;

[0054] FIG7 is a schematic structural diagram of a second network device provided by the present application;

[0055] FIG8 is a schematic structural diagram of another communication device provided in the present application. DETAILED DESCRIPTION

[0056] The following describes in detail the implementation of the embodiments of the present application in conjunction with the accompanying drawings.

[0057] In the description of this application, unless otherwise specified, " / " indicates that the objects associated before and after are in an "or" relationship, for example, A / B can represent A or B; "and / or" in this application is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural.

[0058] In the description of this application, unless otherwise specified, "plurality" means two or more than two. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or plural.

[0059] In addition, to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that the words "first" and "second" do not limit the quantity or execution order, and the words "first" and "second" do not necessarily mean different.

[0060] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner to facilitate understanding.

[0061] It will be understood that the “embodiment” mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, the various embodiments throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It will be understood that in the various embodiments of the present application, the size of the sequence number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.

[0062] It is understood that some optional features in the embodiments of the present application may, in certain scenarios, be implemented independently of other features, such as the solution on which they are currently based, to solve corresponding technical problems and achieve corresponding effects. They may also be combined with other features in certain scenarios as needed. Accordingly, the devices provided in the embodiments of the present application may also implement these features or functions accordingly, which will not be described in detail here.

[0063] In this application, unless otherwise specified, the same or similar parts between the various embodiments can be referenced to each other. In the various embodiments of this application, unless otherwise specified and there is no logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other. The technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships. The following description of the embodiments of this application does not constitute a limitation on the scope of protection of this application.

[0064] In order to facilitate understanding of the technical solutions of the embodiments of the present application, a brief introduction to the relevant technologies of the present application is first given as follows.

[0065] 1) High-speed dedicated network (HSDN) and high-speed rail public network

[0066] Among them, HSDN can be called a private network. HSDN is deployed around the high-speed rail line and can be a cell that provides services for high-speed rail users (also called terminal devices with higher mobile speeds). This cell can be called a high-speed cell.

[0067] Among them, the high-speed rail public network can be called a public network, which is deployed around the HSDN and can be a cell that provides services to non-high-speed rail users.

[0068] It is understandable that there is no strict distinction between users of HSDN and high-speed rail public network services. High-speed rail users can access HSDN based on network planning, or they can access the high-speed rail public network; similarly, non-high-speed rail users can access the high-speed rail public network based on network planning, or they can access HSDN.

[0069] 2) Downlink coverage

[0070] Among them, downlink coverage is one of the important indicators of communication quality, which can be the range covered by the beam of network equipment.

[0071] Optionally, a terminal device within the coverage of the network device can access the network device through the beam of the network device.

[0072] 3) Beam

[0073] The type of beam may be a wide beam, a narrow beam, or other types of beams without limitation.

[0074] In the protocol, the word "beam" is not directly used to represent the beam. Instead, other methods are used to implicitly describe beam-related operations. Beams generally correspond to resources, that is, resources can also be used to indicate or describe beams.

[0075] 4) Uplink coverage

[0076] Among them, due to the large penetration loss of high-speed rail and the limited transmission power of terminal equipment, the uplink coverage is subject to certain restrictions.

[0077] Optionally, the terminal device may choose to adopt a high-order MCS or a low-order MCS according to communication quality and communication requirements.

[0078] Optionally, the terminal device may perform data transmission according to a CP-OFDM waveform or a DFT-S-OFDM waveform.

[0079] Among them, the CP-OFDM waveform has better performance when the MCS is high. The CP-OFDM waveform can transmit data through discontinuous time-frequency domain resources, but the peak to average power ratio (PAPR, also referred to as peak-to-average power ratio) is high.

[0080] Among them, the DFT-S-OFDM waveform has better performance when the MCS is low and has a higher PAPR, which can improve the communication quality, but requires higher transmission power.

[0081] Exemplarily, the network device may instruct the terminal device to adopt a relevant waveform based on the channel quality of the uplink of the terminal device.

[0082] For example, when the uplink channel quality is good, the MCS of the terminal device is low, and the network device can instruct the terminal device to use the CP-OFDM waveform; when the uplink channel quality is poor, the MCS of the terminal device is high, and the network device can instruct the terminal device to use the DFT-S-OFDM waveform.

[0083] It can be understood that the network device can instruct the terminal device to switch the waveform according to the channel quality of the uplink, and the terminal device can transmit data according to the switched waveform, which can improve the communication performance of the terminal device.

[0084] However, due to the large signal fluctuations and rapid signal changes of terminal devices with higher mobile speeds, the network equipment is less accurate in judging the uplink channel quality and is unable to better instruct the terminal devices to switch waveforms.

[0085] For example, at time 1, the network device instructs the terminal device to use the DFT-S-OFDM waveform. At time 2, the uplink channel quality is better, and the terminal device is more suitable for using the CP-OFDM waveform. The network device can use reconfiguration to instruct the terminal device to use the CP-OFDM waveform. However, when there are many terminal devices, the network device needs to reconfigure all terminal devices, which may result in a large overhead. Reconfiguring all terminal devices may also increase the probability of dropped calls on some terminal devices, reducing the communication quality between the terminal devices and the network device.

[0086] Based on the description of the above content, the terminal device can access the network device according to the SSB narrow beam or SSB wide beam fixedly configured by the network device, and the terminal device can also transmit data according to the waveform indicated by the network device.

[0087] As shown in Figure 1 below, the SSB narrow beam of the network device has a wide coverage range and a high reference signal receiving power (RSRP). However, when the terminal device moves at a high speed, the SSB narrow beam may not keep up with the position change of the terminal device. Frequent beam switching of the terminal device may cause large signal fluctuations of the terminal device, reducing the reliability of communication.

[0088] As shown in Figure 2 below, SSB wide beam can improve the reliability of terminal devices accessing network devices, with a lower RSRP, but the cell coverage rate will decrease and the number of terminal devices accessing the network devices will decrease.

[0089] For example, when a terminal device enters a cell where network equipment uses a fixed SSB narrow beam, it can access the network equipment based on the SSB narrow beam. When the terminal device moves quickly, the fast movement speed will cause the position to change quickly, and the beam may be switched frequently, which will cause the terminal device's signal to fluctuate greatly and become unstable, thereby reducing communication quality.

[0090] In summary, how to better enable terminal devices to access network devices and improve the communication performance between terminal devices and network devices has become an urgent problem to be solved.

[0091] To solve the above-mentioned technical problem, the present application provides a communication method, comprising: when a first network device satisfies a first preset condition, adjusting a beam from a first beam to a second beam; after adjusting the beam to the second beam, when a second preset condition is satisfied, adjusting the beam from the second beam to the first beam. The first preset condition is that within the coverage area of ​​the first network device, the number of terminal devices with a moving speed greater than or equal to a first preset threshold is greater than or equal to a second preset threshold; the beam type of the first beam is a narrow beam, and the beam type of the second beam is a wide beam; and the second preset condition is that within the coverage area of ​​the first network device, the number of terminal devices with a moving speed greater than or equal to the first preset threshold is less than the second preset threshold.

[0092] In an embodiment of the present application, when the first preset condition is met, the first network device adjusts the beam from a narrow beam (i.e., the first beam) to a wide beam (i.e., the second beam), so that a terminal device with a mobile speed greater than or equal to the first preset threshold no longer needs to frequently switch beams when accessing the first network device, thereby reducing the signal fluctuation of the terminal device, improving the reliability of the terminal device accessing the first network device, and improving the communication quality between the terminal device and the first network device; when the second preset condition is met, the number of terminal devices with a mobile speed greater than or equal to the first preset threshold within the coverage range of the first network device is small, and the beam of the first network device can be adjusted from a wide beam (i.e., the second beam) to a narrow beam (i.e., the first beam), which can increase the coverage range of the first network device, improve the RSRP within the coverage range of the first network device, and increase the number of terminal devices accessing the first network device.

[0093] The technical solutions of the embodiments of the present application can be used in various communication systems, which may be a third generation partnership project (3GPP) communication system, for example, a fourth generation (4G), long term evolution (LTE), a fifth generation (5G) mobile communication system, a new radio (NR), or a system of hybrid networking of LTE and 5G, or a non-terrestrial network (NTN) system, or a mobile communication system evolved after 5G such as the sixth generation (6G), a vehicle to everything (V2X) system, or a device-to-device (D2D) communication system, a machine to machine (M2M) communication system, the Internet of Things (IoT), a narrowband Internet of Things (NB-IoT), other next-generation communication systems, integrated perception and communication systems, satellite communication systems, and the like. The communication system may also be a non-3GPP communication system, such as a wireless local area network (WLAN) system such as wireless fidelity (Wi-Fi), without limitation.

[0094] The communication system used in this application may be as shown in FIG3 below. The communication system may include one or more terminal devices and one or more network devices.

[0095] This application can be applied to various communication scenarios, such as beam measurement, channel estimation, signal detection, etc.

[0096] The above-mentioned communication systems and communication scenarios applicable to the present application are merely examples. The communication systems and communication scenarios applicable to the present application are not limited thereto, and the above description does not impose any limitation on the solutions of the present application.

[0097] Among them, the terminal device in the embodiment of the present application can be located within the beam / cell coverage of the network device, and the network device can provide communication services for the terminal device.

[0098] The terminal device in the embodiments of the present application may be a device with wireless transceiver functions or a chip or chip system that can be set in the device, which can allow a user to access the network and is a device for providing voice and / or data connectivity to the user. The terminal device may also be referred to as user equipment (UE), subscriber unit (subscriber unit), terminal (terminal), mobile station (MS), or mobile terminal (MT).

[0099] Optionally, the terminal device in the embodiment of the present application may be a user-side device for implementing wireless communication functions, such as a terminal or a chip that can be used in a terminal. The terminal may be a UE, user unit, access terminal, terminal unit, terminal station, mobile station, mobile station, remote station, remote terminal, mobile device, wireless communication device, terminal agent, or terminal device in a 5G network or a public land mobile network (PLMN) evolved after 5G. The access terminal may be a cellular phone, a smart phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless data card, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication capabilities, a laptop computer, a tablet computer, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a drone, a robot, a smart point of sale (POS) machine, customer-premises equipment (CPE) or a wearable device, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical care, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in machine type communication (MTC), a wireless terminal in smart city (SMART CITY), or a wireless terminal in industrial control. The terminal may be a wireless terminal in a smart city or a wireless terminal in a smart home. Alternatively, the terminal may be a terminal with communication capabilities in the IoT, such as a terminal in V2X (e.g., a vehicle-to-everything (V2X) device), a terminal in D2D communication, or a terminal in M2M communication. The terminal may be mobile or fixed.

[0100] The network device in the embodiments of the present application can be any device deployed in an access network that can communicate wirelessly with a terminal device, or a chip or chip system that can be provided in the above-mentioned device, or a logical node or a logical module or a function implemented in software, and can be used to implement wireless physical control functions, resource scheduling and wireless resource management, wireless access control, and mobility management functions. Specifically, the network device can be a device that supports wired access or a device that supports wireless access.

[0101] Optionally, the network device in the embodiment of the present application is a device that connects a terminal device to a wireless network. The network device may be a node in a radio access network (RAN), or may be a base station, which may be referred to as a radio access network node (or device).

[0102] For example, the network device may include a base transceiver station (BTS) in a global system for mobile communication (GSM) or a code division multiple access (CDMA) network. Alternatively, the network device may include a NodeB in a wideband code division multiple access (WCDMA) network. Alternatively, the network device may include an evolved base station (NodeB or eNB or e-NodeB, evolutionary Node B) in an LTE system or an enhanced LTE (LTE-advanced, LTE-A) system, such as a traditional macro base station eNB and a micro base station eNB in ​​a heterogeneous network scenario. Alternatively, the network device may include a next generation node B (gNB) in an NR system. Alternatively, the network device may be a network device in a future evolved PLMN. Alternatively, the network device may include a transmission reception point (TRP), a home base station (e.g., a home evolved NodeB, or HNB), a baseband unit (BBU), a baseband pool, or a wireless fidelity (Wi-Fi) access point (AP). Alternatively, the network device may include a base station in an NTN, which can be deployed on an aircraft or satellite. In an NTN, the network device may function as a Layer 1 (L1) relay, a base station, or an integrated access and backhaul (IAB) node. Alternatively, the network device may be a device that implements base station functions in the IoT, such as a device that implements base station functions in drone communications, vehicle-to-everything (V2X), device-to-device (D2D), or machine-to-machine (M2M). Alternatively, the network device may be a wireless controller in a cloud radio access network (CRAN) scenario. Alternatively, the network device may be a wearable device or an in-vehicle device.

[0103] A network device may also be a module or unit that implements some of the functions of a base station. For example, a network device may be a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). The CU and DU may be configured separately or included in the same network element, such as a baseband unit (BBU). The RU may be included in a radio frequency device or radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0104] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, the network device may be a network device or a module of a network device in an open radio access network (open RAN, ORAN) system. In the ORAN system, CU may also be referred to as open (open, O)-CU, DU may also be referred to as O-DU, CU-CP may also be referred to as O-CU-CP, CU-UP may also be referred to as O-CU-UP, and RU may also be referred to as O-RU. Any of the CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0105] Optionally, the base station in the embodiment of the present application may include various forms of base stations, such as: macro base stations, micro base stations (also called small stations), relay stations, access points, home base stations, TRPs, transmitting points (TPs), or mobile switching centers, etc. The embodiment of the present application does not make specific limitations on this.

[0106] It should be noted that the communication system described in the embodiment of the present application is intended to more clearly illustrate the technical solution of the embodiment of the present application, and does not constitute a limitation on the technical solution provided in the embodiment of the present application. Ordinary technicians in this field can know that with the evolution of network architecture and the emergence of new business scenarios, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

[0107] In specific implementations, the various terminal devices and network devices shown in Figure 3 may adopt the structure shown in Figure 4, or include the components shown in Figure 4. Figure 4 is a schematic diagram of the structure of a communication device 40 provided in an embodiment of the present application. The communication device 40 may be a terminal device or a chip or system-on-chip in a terminal device; it may also be a network device or a chip or system-on-chip in a network device.

[0108] As shown in FIG4 , the communication device 40 includes one or more processors 401. Furthermore, the communication device 40 may also include a communication bus 402 and at least one communication interface ( FIG4 is merely exemplary, illustrating the communication device 40 including a communication interface 404 and one processor 401). Optionally, the communication device 40 may also include a memory 403.

[0109] Processor 401 can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present application, or a processing core for processing data (e.g., computer program instructions). The processor can be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor.

[0110] In a specific implementation, as an embodiment, the processor 401 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 4 .

[0111] Communication bus 402 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, for example. Such buses may be classified as address buses, data buses, control buses, and the like. For ease of illustration, FIG4 shows a single thick line, but this does not imply a single bus or type of bus. Communication bus 402 is used to connect the various components within communication device 40, enabling communication and interaction between the various components within communication device 40.

[0112] Communication interface 404 may be a transceiver module for communicating with other devices or a communication network, such as Ethernet, RAN, or wireless local area network (WLAN). For example, communication interface 404 may be a device such as a transceiver or a transceiver. Alternatively, communication interface 404 may be a transceiver circuit within processor 401, configured to implement signal input and output to the processor.

[0113] The memory 403 may be a device having a storage function. For example, it may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory may exist independently and be connected to the processor via the communication bus 402. The memory may also be integrated with the processor.

[0114] Exemplarily, the memory 403 is used to store computer-executable instructions for executing the solution of the present application, and the execution is controlled by the processor 401. The processor 401 is used to execute the computer-executable instructions stored in the memory 403, thereby implementing the method provided in the embodiment of the present application.

[0115] Alternatively, optionally, in an embodiment of the present application, the processor 401 may also perform processing-related functions in the method provided in the following embodiments of the present application, and the communication interface 404 is responsible for communicating with other devices or communication networks, which is not specifically limited in the embodiments of the present application.

[0116] Optionally, the computer-executable instructions in the embodiments of the present application may also be referred to as application code, which is not specifically limited in the embodiments of the present application.

[0117] In a specific implementation, as an embodiment, the communication device 40 may further include an output device 405 and an input device 406. The output device 405 communicates with the processor 401 and can display information in a variety of ways. For example, the output device 405 can be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector. The input device 406 communicates with the processor 401 and can receive user input in a variety of ways. For example, the input device 406 can be a mouse, a keyboard, a touch screen device, or a sensor device.

[0118] It should be noted that the composition structure shown in Figure 4 does not constitute a limitation on the communication device. In addition to the components shown in Figure 4, the communication device may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0119] The communication method provided by the embodiment of the present application will be described below in conjunction with the accompanying drawings. It will be understood that in the embodiment of the present application, the terminal device or the network device can perform some or all of the steps in the embodiment of the present application, and these steps or operations are only examples. The embodiment of the present application can also perform other operations or variations of various operations. In addition, the various steps can be performed in different orders presented in the embodiment of the present application, and it is possible that not all operations in the embodiment of the present application need to be performed.

[0120] As shown in FIG5 below, it is an interactive diagram of a communication method provided by the present application. Referring to FIG5, the communication method includes the following steps:

[0121] S501: When a first preset condition is met, the first network device adjusts the beam from a first beam to a second beam.

[0122] Among them, the first preset condition is that within the coverage range of the first network device, the number of terminal devices (which can be called high-speed terminal devices or high-speed users) with a mobile speed greater than or equal to the first preset threshold is greater than or equal to the second preset threshold; the beam type of the first beam is a narrow beam, and the beam type of the second beam is a wide beam.

[0123] Optionally, the first network device may initially configure the beam as the first beam. Since within the coverage range of the first network device, terminal devices (which may be referred to as low-speed terminal devices or low-speed users) whose moving speed is less than the first preset threshold value may not switch beams frequently, terminal devices whose moving speed is less than the first preset threshold value may access the first network device according to the first beam.

[0124] Optionally, the first preset threshold and the second preset threshold may be determined according to an actual communication scenario or actual communication requirement. This application provides several possible examples:

[0125] For example, taking the first preset threshold as 100 kilometers per hour (km / h) and the second preset threshold as 10, when the moving speed of the terminal device is greater than or equal to 100 km / h, and the number of terminal devices with a moving speed greater than or equal to 100 km / h is greater than or equal to 10, the first network device adjusts the beam from the first beam to the second beam.

[0126] Another exemplary example is that the first preset threshold value may be 150 km / h. When the moving speed of the terminal device is greater than or equal to 150 km / h, and the number of terminal devices with a moving speed greater than or equal to 150 km / h is greater than or equal to the second preset threshold value, the first network device adjusts the beam from the first beam to the second beam.

[0127] To sum up, when the first preset condition is met, the first network device adjusts the beam from the first beam to the second beam, so that the terminal device with a moving speed greater than or equal to the first preset threshold no longer switches the beam frequently, and the signal fluctuation of the terminal device with a moving speed greater than or equal to the first preset threshold is reduced. It can prioritize the access of the terminal device with a moving speed greater than or equal to the first preset threshold to the first network device, improve the reliability of the access of the terminal device with a moving speed greater than or equal to the first preset threshold to the first network device, and improve the communication quality between the terminal device with a moving speed greater than or equal to the first preset threshold and the first network device.

[0128] Optionally, the first network device may determine the moving speed of the terminal device within the coverage area of ​​the first network device based on one or more of the following parameters: Doppler frequency shift, or GPS speed. This application proposes several possible embodiments:

[0129] In a first possible embodiment, the terminal device may send a signal to the first network device, and the first network device determines the moving speed of the terminal device according to the Doppler frequency shift of the received signal.

[0130] In a second possible embodiment, the terminal device may determine its own GPS speed, and then send the GPS speed to the first network device. The first network device may determine the moving speed of the terminal device based on the GPS speed.

[0131] S502: After the first network device adjusts the beam to the second beam, when a second preset condition is met, the first network device adjusts the beam from the second beam to the first beam.

[0132] Among them, the second preset condition is that within the coverage area of ​​the first network device, the number of terminal devices with a moving speed greater than or equal to the first preset threshold is less than the second preset threshold.

[0133] It can be understood that when the second preset condition is met, the number of terminal devices with a mobile speed greater than or equal to the first preset threshold within the coverage range of the first network device is small, and the beam of the first network device can be adjusted from the second beam to the first beam, which can improve the RSRP within the coverage range of the first network device and increase the number of terminal devices accessing the first network device; at the same time, terminal devices with a mobile speed less than the first preset threshold can access the first network device without frequently switching waveforms and can access the first network device according to the second beam.

[0134] Therefore, the communication method described in Figure 5 above can take into account terminal devices whose mobile speed is greater than or equal to the first preset threshold and terminal devices whose mobile speed is less than the first preset threshold, and can give priority to terminal devices whose mobile speed is greater than or equal to the first preset threshold to access the first network device, and can improve the user experience of terminal devices whose mobile speed is greater than or equal to the first preset threshold.

[0135] Based on the communication method shown in Figure 5 above, when the first preset condition is met, the first network device adjusts the beam from a narrow beam (i.e., the first beam) to a wide beam (i.e., the second beam), so that the terminal device with a mobile speed greater than or equal to the first preset threshold no longer switches the beam frequently, and the signal fluctuation of the terminal device with a mobile speed greater than or equal to the first preset threshold is reduced, thereby improving the reliability of the terminal device with a mobile speed greater than or equal to the first preset threshold accessing the first network device, and improving the communication quality between the terminal device with a mobile speed greater than or equal to the first preset threshold and the first network device; when the second preset condition is met, the number of terminal devices with a mobile speed greater than or equal to the first preset threshold within the coverage range of the first network device is small, and the beam of the first network device can be adjusted from a narrow beam (second beam) to a wide beam (first beam), which can increase the coverage range of the first network device, improve the RSRP within the coverage range of the first network device, and increase the number of terminal devices accessing the first network device.

[0136] Based on the embodiment described in Figure 5 above, in an embodiment of the present application, the second network device can also adjust the beam. The method includes: when a first preset condition is met, the first network device sends a first indication information to the second network device; accordingly, the second network device receives the first indication information from the first network device, and adjusts the beam from the third beam to the fourth beam according to the first indication information.

[0137] The first indication information is used to instruct the second network device to adjust the beam to a wide beam.

[0138] The beam type of the third beam is a narrow beam, and the beam type of the fourth beam is a wide beam.

[0139] Optionally, the second network device may be a network device in a neighboring area of ​​the first network device. The second network device may initially configure the beam as a third beam. Since within the coverage range of the second network device, terminal devices with a moving speed less than the first preset threshold may not switch beams frequently, terminal devices with a moving speed less than the first preset threshold may access the second network device according to the third beam.

[0140] It can be understood that the first network device sends the first indication information to the second network device, which can enable the second network device to adjust the beam to a wide beam in advance, and avoid as much as possible the situation where the second network device fails to adjust the beam to a wide beam in time due to time delay, resulting in a decrease in communication quality. It can enable the terminal device with a moving speed greater than or equal to the first preset threshold within the coverage area of ​​the second network device to no longer frequently switch beams, and reduce the signal fluctuation of the terminal device with a moving speed greater than or equal to the first preset threshold, which can improve the communication performance between the terminal device with a moving speed greater than or equal to the first preset threshold and the second network device.

[0141] Correspondingly, the second network device may also be the same as the first network device. When the fifth preset condition is met, the second network device adjusts the beam from the third beam to the fourth beam.

[0142] Among them, the fifth preset condition is that within the coverage range of the second network device, the number of terminal devices with a moving speed greater than or equal to the first preset threshold is greater than or equal to the second preset threshold.

[0143] It can be understood that when the fifth preset condition is met, the second network device adjusts the beam from a narrow beam (i.e., the third beam) to a wide beam (i.e., the fourth beam), so that the terminal device with a moving speed greater than or equal to the first preset threshold no longer switches the beam frequently, and the signal fluctuation of the terminal device with a moving speed greater than or equal to the first preset threshold is reduced, thereby improving the reliability of the terminal device with a moving speed greater than or equal to the first preset threshold accessing the second network device, and improving the communication quality between the terminal device with a moving speed greater than or equal to the first preset threshold and the second network device; compared with adjusting the beam according to the first indication information, the second network device adjusts the beam according to the fifth preset condition to reduce transmission overhead, avoid as much as possible the situation where the beam is always a narrow beam due to the second network device not receiving the first indication information, and improve the reliability of communication.

[0144] Optionally, the first network device sends second indication information to the second network device; accordingly, the second network device receives the second indication information from the first network device, and adjusts the beam from the fourth beam to the third beam according to the second indication information.

[0145] Among them, the second indication information is used to instruct the second network device to adjust the beam to a narrow beam when the third preset condition is met, and the third preset condition is that within the coverage range of the second network device, the number of terminal devices with a moving speed greater than or equal to the first preset threshold is less than the second preset threshold.

[0146] It can be understood that the first network device can instruct the second network device to adjust the wide beam to a narrow beam when the third preset condition is met, so as to increase the coverage range of the second network device, improve the RSRP within the coverage range of the second network device, and increase the number of terminal devices accessing the second network device.

[0147] Correspondingly, the second network device may also adjust the beam from the fourth beam to the third beam when the third preset condition is met, just like the first network device.

[0148] It can be understood that when the third preset condition is met, the second network device can adjust the beam from the fourth beam to the third beam, which can increase the coverage of the second network device, improve the RSRP within the coverage of the second network device, and increase the number of terminal devices accessing the second network device; compared with the second network device adjusting the beam according to the second indication information from the first network device, the second network device can adjust the beam according to the third preset condition, which can reduce transmission overhead, avoid as much as possible the situation where the second network device cannot receive the second indication information and the beam is always the fourth beam, and can improve the reliability of communication.

[0149] Optionally, the second network device may determine the moving speed of the terminal device within the coverage area of ​​the first network device according to one or more of the following parameters: Doppler frequency shift, or GPS speed.

[0150] Based on the above method, this application proposes four possible embodiments for moving a terminal device from the coverage area of ​​a first network device to the coverage area of ​​a second network device:

[0151] In a first possible embodiment, when a first preset condition is met, the first network device adjusts its beam from the first beam to the second beam, and terminal devices within the coverage area of ​​the first network device access the first network device according to the second beam of the first network device; when a second preset condition is met, the first network device adjusts its beam from the second beam to the first beam. When a terminal device with a moving speed greater than or equal to a first preset threshold leaves the coverage area of ​​the first network device and enters the coverage area of ​​the second network device, if the number of terminal devices with a moving speed greater than or equal to the first preset threshold is greater than or equal to a second preset threshold, the second network device adjusts its beam from the third beam to the fourth beam, and terminal devices within the coverage area of ​​the second network device access the second network device according to the fourth beam of the second network device; when a third preset condition is met, the second network device adjusts its beam from the fourth beam to the third beam.

[0152] In a second possible embodiment, when a first preset condition is met, the first network device adjusts its beam from the first beam to the second beam, and terminal devices within the coverage of the first network device access the first network device based on the second beam of the first network device. Simultaneously, the first network device sends first indication information to the second network device, and the second network device may adjust its beam from the third beam to the fourth beam based on the first indication information from the first network device. When a second preset condition is met, the first network device adjusts its beam from the second beam to the first beam. When a terminal device with a moving speed greater than or equal to a first preset threshold leaves the coverage of the first network device and enters the coverage of the second network device, since the second network device has already adjusted its beam to the fourth beam, terminal devices within the coverage of the second network device may access the second network device based on the fourth beam of the second network device. When a third preset condition is met, the second network device adjusts its beam from the fourth beam to the third beam.

[0153] In a third possible embodiment, when a first preset condition is met, the first network device adjusts the beam from the first beam to the second beam, and terminal devices within the coverage of the first network device access the first network device according to the second beam of the first network device. At the same time, the first network device sends first indication information and second indication information to the second network device, and the second network device may adjust the beam from the third beam to the fourth beam according to the first indication information from the first network device. When a second preset condition is met, the first network device adjusts the beam from the second beam to the first beam. When a terminal device with a moving speed greater than or equal to the first preset threshold leaves the coverage of the first network device and enters the coverage of the second network device, since the second network device has adjusted to the fourth beam in advance, terminal devices within the coverage of the second network device may access the second network device according to the fourth beam of the second network device. The second network device may adjust its beam from the fourth beam to the third beam according to the second indication information.

[0154] In a fourth possible embodiment, when a first preset condition is met, the first network device adjusts the beam from the first beam to the second beam, and terminal devices within the coverage of the first network device access the first network device according to the second beam of the first network device. At the same time, the first network device sends a second indication message to the second network device. When a second preset condition is met, the first network device adjusts the beam from the second beam to the first beam. When a terminal device with a moving speed greater than or equal to a first preset threshold leaves the coverage of the first network device and enters the coverage of the second network device, if the number of terminal devices with a moving speed greater than or equal to the first preset threshold is greater than or equal to a second preset threshold, the second network device adjusts the beam from the third beam to the fourth beam, and terminal devices within the coverage of the second network device access the second network device according to the fourth beam of the second network device. The second network device may adjust the beam from the fourth beam to the third beam according to the second indication message.

[0155] Based on the embodiment described in Figure 5, further, in an embodiment of the present application, the first network device can adjust the waveform of the terminal device according to the MCS order of the terminal device. The method includes: the first network device determines the average MCS order corresponding to the terminal devices that meet the fourth preset condition within a preset time; if the average MCS order is greater than the third preset threshold, sending first configuration information to the terminal device that meets the fourth preset condition; or, if the average MCS order is less than or equal to the third preset threshold, sending second configuration information to the terminal device that meets the fourth preset condition.

[0156] Among them, the fourth preset condition is that the moving speed within the coverage range of the first network device is greater than or equal to the first preset threshold; the first configuration information is used to indicate the CP-OFDM waveform; and the second configuration information is used to indicate the DFT-S-OFDM waveform.

[0157] Optionally, the third preset threshold may be determined according to an actual communication scenario or actual communication requirement.

[0158] Correspondingly, the terminal device can receive first configuration information from the first network device and adjust the waveform to a CP-OFDM waveform; or, the terminal device can receive second configuration information from the first network device and adjust the waveform to a DFT-S-OFDM waveform.

[0159] The terminal device can assign the CP-OFDM waveform or the DFT-S-OFDM waveform to any beam (wide beam or narrow beam) to achieve data transmission.

[0160] In a possible embodiment, the first network device can collect the MCS orders of terminal devices whose moving speed is greater than or equal to a first preset threshold within a time period (a time period can be any time, for example, a day or an hour) within the coverage area of ​​the first network device, and then obtain the average MCS order.

[0161] Exemplarily, the MCS order of terminal devices within the coverage range of the first network device can be input into the neural network to calculate the MCS order of terminal devices whose moving speed is greater than or equal to the first preset threshold, and then the weighted average of the MCS orders, i.e., the average MCS order, is calculated.

[0162] For example, taking the average MCS order as 4 and the third preset threshold as 6, since the average MCS order is less than the third preset threshold, the first network device sends the first configuration information to the terminal device that meets the fourth preset condition.

[0163] For another example, taking the average MCS order as 8 and the third preset threshold as 6, since the average MCS order is greater than the third preset threshold, the first network device sends the second configuration information to the terminal device that meets the fourth preset condition.

[0164] Based on the above-mentioned method of configuring a waveform for a terminal device by a first network device, the first network device can determine the average MCS order of the terminal device whose mobile speed is greater than or equal to the first preset threshold within the coverage area of ​​the first network device within a preset time; when the average MCS order is greater than a third preset threshold, the first configuration information can be used to instruct the terminal device to use a CP-OFDM waveform for data transmission, which can reduce the transmission power of the terminal device and reduce power consumption; when the MCS order is less than or equal to the third preset threshold, the second configuration information can be used to instruct the terminal device to use a DFT-S-OFDM waveform for data transmission, which can increase the transmission power of the terminal device, avoid distortion, and improve communication performance. At the same time, sending the first configuration information or the second configuration information to the terminal device to fix the configuration waveform can avoid frequent reconfiguration of the waveform for the terminal device as much as possible, thereby reducing the risk of dropped calls for the terminal device, enabling the terminal device to obtain optimal performance, and improving the communication quality between the terminal device and the first network device.

[0165] Optionally, the first network device may perform waveform adaptive configuration based on channel quality for terminal devices within the coverage area of ​​the first network device whose movement speed is less than a first preset threshold. By employing the waveform adaptive configuration method, terminal devices whose movement speed is less than the first preset threshold can achieve optimal communication performance, thereby improving the communication quality between the terminal devices and the first network device.

[0166] For example, at time 1, the first network device detects that the channel quality is good, and can instruct the terminal device whose mobile speed is less than the first preset threshold to configure the CP-OFDM waveform for data transmission; at time 2, the first network device detects that the channel quality is poor, and can instruct the terminal device whose mobile speed is less than the first preset threshold to configure the DFT-S-OFDM waveform for data transmission.

[0167] It should be noted that the various embodiments of this application can be implemented independently or in combination, without limitation. Unless otherwise specified or there is a logical conflict, the terms and / or descriptions of the different embodiments provided in this application are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0168] It is understood that in the embodiments of the present application, the execution subject may perform some or all of the steps in the embodiments of the present application. These steps or operations are merely examples, and the embodiments of the present application may also perform other operations or variations of various operations. In addition, the various steps may be performed in a different order than those presented in the embodiments of the present application, and it is possible that not all operations in the embodiments of the present application need to be performed.

[0169] The above mainly introduces the solution provided by this application from the perspective of interaction between various devices. Accordingly, this application also provides a communication device, which is used to implement the various methods mentioned above. The communication device can be the first network device involved in the above method embodiment, or a device including the first network device, or a component that can be used for the first network device; or the communication device can be the second network device involved in the above method embodiment, or a device including the second network device, or a component that can be used for the second network device; or the communication device can be the terminal device in the above method embodiment, or a device including the above terminal device, or a component that can be used for the terminal device.

[0170] It is understandable that, in order to realize the above functions, the communication device includes hardware structures and / or software modules corresponding to the execution of each function. It should be easily appreciated by those skilled in the art that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0171] The embodiment of the present application can divide the functional modules of the communication device according to the above method embodiment. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical functional division. In actual implementation, there may be other division methods.

[0172] In one implementation scenario, taking the communication device as the first network device in the above method embodiment as an example, FIG6 shows a schematic structural diagram of a first network device 60. The first network device 60 includes a processing module 601 and a transceiver module 602.

[0173] In some embodiments, the first network device 60 may further include a storage module (not shown in FIG. 6 ) for storing program instructions and data.

[0174] In some embodiments, the transceiver module 602, which may also be referred to as a transceiver unit, is configured to implement a transmitting and / or receiving function. The transceiver module 602 may be composed of a transceiver circuit, a transceiver, a transceiver, or a communication interface.

[0175] In some embodiments, the transceiver module 602 may include a receiving module and a sending module, which are respectively used to execute the receiving and sending steps performed by the first network device in the above method embodiment, and / or other processes for supporting the technology described herein; the processing module 601 may be used to execute the processing steps (such as determination, generation, etc.) performed by the first network device in the above method embodiment, and / or other processes for supporting the technology described herein.

[0176] Exemplarily, processing module 601 is configured to adjust the beam from the first beam to the second beam when a first preset condition is met; wherein the first preset condition is that within the coverage area of ​​the first network device, the number of terminal devices with a moving speed greater than or equal to the first preset threshold is greater than or equal to the second preset threshold; the beam type of the first beam is a narrow beam, and the beam type of the second beam is a wide beam. Processing module 601 is further configured to, after adjusting the beam to the second beam, adjust the beam from the second beam to the first beam when a second preset condition is met; wherein the second preset condition is that within the coverage area of ​​the first network device, the number of terminal devices with a moving speed greater than or equal to the first preset threshold is less than the second preset threshold.

[0177] In a possible implementation, the transceiver module 602 is configured to send first indication information to the second network device when a first preset condition is met; wherein the first indication information is used to instruct the second network device to adjust the beam to a wide beam.

[0178] In one possible implementation, the transceiver module 602 is also used to send a second indication information to the second network device; wherein the second indication information is used to instruct the second network device to adjust the beam to a narrow beam when a third preset condition is met, and the third preset condition is that within the coverage range of the second network device, the number of terminal devices with a moving speed greater than or equal to the first preset threshold is less than the second preset threshold.

[0179] In one possible implementation, the processing module 601 is further configured to determine an average modulation and coding scheme (MCS) order corresponding to a terminal device that meets a fourth preset condition within a preset time; wherein the fourth preset condition is that the mobile speed within the coverage area of ​​the first network device is greater than or equal to a first preset threshold. The transceiver module 602 is further configured to send first configuration information to the terminal device that meets the fourth preset condition if the average MCS order is greater than a third preset threshold; wherein the first configuration information is used to indicate a cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) waveform; or, if the average MCS order is less than or equal to the third preset threshold, send second configuration information to the terminal device that meets the fourth preset condition; wherein the second configuration information is used to indicate a discrete Fourier transform spread spectrum orthogonal frequency division multiplexing (DFT-S-OFDM) waveform.

[0180] In a possible embodiment, the processing module 601 is further configured to determine the moving speed of the terminal device within the coverage of the first network device according to one or more of the following parameters: Doppler frequency shift, or GPS speed.

[0181] In the present application, the first network device 60 is presented in the form of functional modules divided in an integrated manner. The "module" here can refer to an ASIC, a circuit, a processor and memory that executes one or more software or firmware programs, an integrated logic circuit, and / or other devices that can provide the above functions.

[0182] In some embodiments, in terms of hardware implementation, those skilled in the art may conceive that the first network device 60 may take the form of the communication apparatus 40 shown in FIG. 4 .

[0183] As an example, the functions / implementation process of the processing module 601 in FIG6 can be implemented by the processor 401 in the communication device 40 shown in FIG4 calling the computer-executable instructions stored in the memory 403. The functions / implementation process of the transceiver module 602 in FIG6 can be implemented by the communication interface 404 in the communication device 40 shown in FIG4.

[0184] In some embodiments, when the first network device 60 in Figure 6 is a chip or a chip system, the function / implementation process of the transceiver module 602 can be implemented through the input and output interface (or communication interface) of the chip or chip system, and the function / implementation process of the processing module 601 can be implemented through the processor (or processing circuit) of the chip or chip system.

[0185] Since the first network device 60 provided in this embodiment can execute the above method, the technical effects that can be obtained can refer to the above method embodiments and will not be repeated here.

[0186] In another implementation scenario, taking the communication device as the second network device in the above method embodiment as an example, FIG7 shows a schematic structural diagram of a second network device 70. The second network device 70 includes a processing module 701 and a transceiver module 702.

[0187] In some embodiments, the second network device 70 may further include a storage module (not shown in FIG. 7 ) for storing program instructions and data.

[0188] In some embodiments, the transceiver module 702, which may also be referred to as a transceiver unit, is used to implement the sending and / or receiving functions. The transceiver module 702 may be composed of a transceiver circuit, a transceiver, a transceiver, or a communication interface.

[0189] In some embodiments, the transceiver module 702 may include a receiving module and a sending module, which are respectively used to execute the receiving and sending steps performed by the second network device in the above method embodiment, and / or used to support other processes of the technology described herein; the processing module 701 may be used to execute the processing steps (such as determination, generation, etc.) performed by the second network device in the above method embodiment, and / or used to support other processes of the technology described herein.

[0190] Illustratively, transceiver module 702 is configured to receive first instruction information from a first network device, wherein the first instruction information is configured to instruct the second network device to adjust the beam to a wide beam. Processing module 701 is configured to adjust the beam from a third beam to a fourth beam based on the first instruction information, wherein the beam type of the third beam is a narrow beam and the beam type of the fourth beam is a wide beam.

[0191] In one possible implementation, the transceiver module 702 is further configured to receive second indication information from the first network device; wherein the second indication information is configured to instruct the second network device to adjust the beam to a narrow beam when a third preset condition is met, where the third preset condition is that the number of terminal devices within the coverage area of ​​the second network device whose movement speed is greater than or equal to a first preset threshold is less than a second preset threshold. The processing module 701 is further configured to adjust the beam from the fourth beam to the third beam based on the second indication information.

[0192] In a possible implementation, the processing module 701 is further configured to adjust the beam from the fourth beam to the third beam when the third preset condition is met.

[0193] In one possible implementation, the processing module 701 is also used to adjust the beam from the third beam to the fourth beam when the fifth preset condition is met; wherein the fifth preset condition is that within the coverage range of the second network device, the number of terminal devices with a moving speed greater than or equal to the first preset threshold is greater than or equal to the second preset threshold.

[0194] In a possible implementation, the processing module 701 is further configured to determine the moving speed of the terminal device within the coverage of the first network device according to one or more of the following parameters: Doppler frequency shift, or GPS speed.

[0195] In the present application, the second network device 70 is presented in the form of various functional modules divided in an integrated manner. The "module" here can refer to an ASIC, a circuit, a processor and memory that executes one or more software or firmware programs, an integrated logic circuit, and / or other devices that can provide the above functions.

[0196] In some embodiments, in terms of hardware implementation, those skilled in the art may conceive that the second network device 110 may take the form of the communication device 70 shown in FIG. 7 .

[0197] As an example, the functions / implementation process of the processing module 701 in FIG7 can be implemented by the processor 401 in the communication device 40 shown in FIG4 calling the computer-executable instructions stored in the memory 403. The functions / implementation process of the transceiver module 702 in FIG7 can be implemented by the communication interface 404 in the communication device 40 shown in FIG4.

[0198] In some embodiments, when the second network device 70 in Figure 7 is a chip or a chip system, the function / implementation process of the transceiver module 702 can be implemented through the input and output interface (or communication interface) of the chip or chip system, and the function / implementation process of the processing module 701 can be implemented through the processor (or processing circuit) of the chip or chip system.

[0199] Since the second network device 70 provided in this embodiment can execute the above method, the technical effects that can be obtained can refer to the above method embodiment and will not be repeated here.

[0200] As a possible product form, the first network device or the second network device described in the embodiment of the present application can also be implemented using the following: one or more field programmable gate arrays (FPGAs), programmable logic devices (PLDs), controllers, state machines, gate logic, discrete hardware components, any other suitable circuits, or any combination of circuits capable of performing the various functions described throughout this application.

[0201] As another possible product form, the first network device or the second network device described in the embodiment of the present application can be implemented by a general bus architecture. For ease of explanation, refer to Figure 8, which is a structural diagram of a communication device 80 provided in an embodiment of the present application. The communication device 80 includes a processor 801 and a transceiver 802. The communication device 80 can be a first network device, or a chip or module therein; or, the communication device 80 can be a second network device, or a chip or module therein. Figure 8 only shows the main components of the communication device 80. In addition to the processor 801 and the transceiver 802, the communication device can further include a memory 803.

[0202] Optionally, the processor 801 is primarily used to process communication protocols and communication data, control the entire communication device, execute software programs, and process software program data. The memory 803 is primarily used to store software programs and data. The transceiver 802 may include a radio frequency circuit and an antenna. The radio frequency circuit is primarily used to convert baseband signals into radio frequency signals and process radio frequency signals. The antenna is primarily used to transmit and receive radio frequency signals in the form of electromagnetic waves.

[0203] Optionally, the processor 801 , the transceiver 802 , and the memory 803 may be connected via a communication bus.

[0204] When the communication device is powered on, the processor 801 can read the software program in the memory 803, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor 801 performs baseband processing on the data to be sent and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and then transmits the radio frequency signal to the outside in the form of electromagnetic waves through the antenna. When data is sent to the communication device, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 801. The processor 801 converts the baseband signal into data and processes the data.

[0205] In another implementation, the RF circuit and antenna may be provided independently of the processor performing baseband processing. For example, in a distributed scenario, the RF circuit and antenna may be remotely arranged independent of the communication device.

[0206] In some embodiments, the present application also provides a communication device, which includes a processor, configured to implement the method in any of the above method embodiments. The communication device may be the first network device or the second network device in the above method embodiments.

[0207] As a possible implementation, the communication device further includes a memory. The memory is used to store necessary computer programs and data. The computer program may include instructions, and the processor may invoke the instructions in the computer program stored in the memory to instruct the communication device to perform any of the above-described method embodiments. Of course, the memory may not be located in the communication device.

[0208] As another possible implementation, the communication device also includes an interface circuit, which is a code / data read / write interface circuit, and the interface circuit is used to receive computer execution instructions (computer execution instructions are stored in a memory, may be read directly from the memory, or may pass through other devices) and transmit them to the processor.

[0209] As another possible implementation, the communication device further includes a communication interface, where the communication interface is used to communicate with a module outside the communication device.

[0210] It can be understood that the communication device can be a chip or a chip system. When the communication device is a chip system, it can be composed of chips or include chips and other discrete devices. The embodiments of the present application do not specifically limit this.

[0211] The present application also provides a computer-readable storage medium having a computer program or instruction stored thereon, which implements the functions of any of the above method embodiments when executed by a computer.

[0212] The present application also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.

[0213] Those skilled in the art will appreciate that, for the sake of convenience and brevity of description, the specific working processes of the above-described systems, devices, and units may refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0214] It is understood that the systems, devices, and methods described in this application may also be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection shown or discussed may be through some interface, indirect coupling or communication connection of devices or units, and may be electrical, mechanical, or other forms.

[0215] The units described as separate components may or may not be physically separate, i.e., they may be located in one place or distributed across multiple network units. Components shown as units may or may not be physical units. Some or all of these units may be selected to achieve the objectives of this embodiment as needed.

[0216] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0217] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes (or functions) described in the embodiments of the present application are implemented. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that contains one or more media that can be integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state drive (SSD)). In the embodiment of the present application, the computer may include the aforementioned device.

[0218] Although the present application is described herein in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art can understand and implement other changes to the disclosed embodiments by reviewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude multiple situations. A single processor or other unit can implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0219] Although the present application has been described with reference to specific features and embodiments thereof, it is apparent that various modifications and combinations may be made thereto without departing from the spirit and scope of the present application. Accordingly, this specification and the drawings are merely illustrative of the present application as defined by the appended claims and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art may make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, the present application is intended to include such modifications and variations as fall within the scope of the claims of the present application and their equivalents.

Claims

1. A communication method, characterized in that: include: When a first preset condition is met, the beam is adjusted from the first beam to the second beam; wherein the first preset condition is that within the coverage range of the first network device, the number of terminal devices whose moving speed is greater than or equal to the first preset threshold is greater than or equal to the second preset threshold; the beam type of the first beam is a narrow beam, and the beam type of the second beam is a wide beam; After adjusting the beam to the second beam, when a second preset condition is met, the beam is adjusted from the second beam to the first beam; wherein the second preset condition is that within the coverage range of the first network device, the number of terminal devices whose moving speed is greater than or equal to the first preset threshold is less than the second preset threshold.

2. The method according to claim 1, characterized in that The method further comprises: When the first preset condition is met, first indication information is sent to the second network device; wherein the first indication information is used to instruct the second network device to adjust the beam to a wide beam.

3. The method according to claim 1 or 2, characterized in that: The method further comprises: Send a second indication message to a second network device; wherein the second indication message is used to instruct the second network device to adjust the beam to a narrow beam when a third preset condition is met, and the third preset condition is that within the coverage area of ​​the second network device, the number of terminal devices with a moving speed greater than or equal to the first preset threshold is less than the second preset threshold.

4. The method according to any one of claims 1 to 3, characterized in that: The method further comprises: Determine an average modulation coding scheme MCS order corresponding to one or more terminal devices that meet a fourth preset condition within a preset time; wherein the fourth preset condition is that the moving speed within the coverage area of ​​the first network device is greater than or equal to the first preset threshold; If the average MCS order is greater than a third preset threshold, sending first configuration information to one or more terminal devices that meet the fourth preset condition; wherein the first configuration information is used to indicate a cyclic prefix orthogonal frequency division multiplexing CP-OFDM waveform; or, If the average MCS order is less than or equal to the third preset threshold, second configuration information is sent to one or more terminal devices that meet the fourth preset condition; wherein the second configuration information is used to indicate a discrete Fourier transform spread spectrum orthogonal frequency division multiplexing DFT-S-OFDM waveform.

5. The method according to any one of claims 1 to 4, characterized in that: The method further comprises: The moving speed of the terminal device within the coverage area of ​​the first network device is determined according to one or more of the following parameters: Doppler frequency shift, or global positioning system speed.

6. A communication method, characterized in that: include: Receiving first indication information from a first network device; wherein the first indication information is used to instruct the second network device to adjust the beam to a wide beam; According to the first indication information, the beam is adjusted from the third beam to the fourth beam; wherein the beam type of the third beam is a narrow beam, and the beam type of the fourth beam is a wide beam.

7. The method according to claim 6, characterized in that After the beam is adjusted to the fourth beam, the method further comprises: Receiving second indication information from the first network device; wherein the second indication information is used to instruct the second network device to adjust the beam to a narrow beam when a third preset condition is met, and the third preset condition is that within the coverage area of ​​the second network device, the number of terminal devices with a moving speed greater than or equal to a first preset threshold is less than a second preset threshold; According to the second indication information, the beam is adjusted from the fourth beam to the third beam.

8. The method according to claim 6 or 7, characterized in that: After the beam is adjusted to the fourth beam, the method further comprises: When the third preset condition is met, the beam is adjusted from the fourth beam to the third beam.

9. The method according to claim 7 or 8, characterized in that: The method further comprises: When the fifth preset condition is met, the beam is adjusted from the third beam to the fourth beam; wherein, the fifth preset condition is that within the coverage range of the second network device, the number of terminal devices whose moving speed is greater than or equal to the first preset threshold is greater than or equal to the second preset threshold.

10. The method according to any one of claims 6 to 9, characterized in that: The method further comprises: The moving speed of the terminal device within the coverage area of ​​the first network device is determined according to one or more of the following parameters: Doppler frequency shift, or global positioning system speed.

11. A communication device, characterized in that: include: A processing module is used to adjust the beam from the first beam to the second beam when a first preset condition is met; wherein the first preset condition The condition is that within the coverage range of the first network device, the number of terminal devices whose moving speed is greater than or equal to the first preset threshold is greater than or equal to the second preset threshold; the beam type of the first beam is a narrow beam, and the beam type of the second beam is a wide beam; The processing module is also used to adjust the beam from the second beam to the first beam when a second preset condition is met after adjusting the beam to the second beam; wherein the second preset condition is that within the coverage range of the first network device, the number of terminal devices whose moving speed is greater than or equal to the first preset threshold is less than the second preset threshold.

12. A communication device, characterized in that: include: A transceiver module, configured to receive first indication information from a first network device; wherein the first indication information is used to instruct the second network device to adjust the beam to a wide beam; A processing module is used to adjust the beam from a third beam to a fourth beam according to the first indication information; wherein the beam type of the third beam is a narrow beam, and the beam type of the fourth beam is a wide beam.

13. A communication device, characterized in that: The communication device includes a processor; the processor is used to run a computer program or instruction, or to use a logic circuit to enable the communication device to execute the communication method as described in any one of claims 1-5, or to enable the communication device to execute the communication method as described in any one of claims 6-10.

14. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions or programs, which, when executed on a computer, enable the communication method as described in any one of claims 1 to 5, or enable the communication device to execute the communication method as described in any one of claims 6 to 10.

15. A computer program product, characterized in that The computer program product includes computer instructions; when part or all of the computer instructions are executed, the communication method according to any one of claims 1 to 5 is executed, or the communication method according to any one of claims 6 to 10 is executed.

16. A communication system, characterized in that: The communication system comprises a first network device and a second network device; wherein the sending end device is used to execute the communication method as described in any one of claims 1-5, and the receiving end device is used to execute the communication method as described in any one of claims 6-10.

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