Orbital angular momentum OAM mode switching method, device and equipment and storage medium

Abstract

The invention provides an OAM mode switching method, apparatus and device, and a storage medium. The method comprises the steps of determining a time interval required by a relay device and / or a terminal device for completing demodulation and decoding of indication information of an OAM mode; determining a target OAM mode to be switched by the relay device and / or the terminal device; sending indication information of the target OAM mode to the relay device and / or the terminal device; and switching the OAM mode based on the time interval. According to the method disclosed by the invention, the network equipment and the relay equipment and / or the terminal equipment can perform OAM switching at the same or similar moment, so that the switching time delay is reduced, the situation that the modes of the relay equipment and / or the terminal equipment and the network equipment are asynchronous due to the switching time delay of the terminal equipment is avoided, and the stability of OAM switching is ensured.

Description

Orbital angular momentum (OAM) mode switching method, device, equipment and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to an OAM mode switching method, apparatus, device, and storage medium. Background Art

[0002] To address spectrum resource shortages, UCAs (Uniform Circular Arrays) are often used to establish OAM (Orbital Angular Momentum) communication systems. However, in UCA-based OAM communication systems, the channel environment is dynamically changing, so the OAM modes used by the transmitter and receiver must be switched to ensure transmission performance.

[0003] In related technologies, when a transceiver needs to switch OAM modes, the signal transmitter sends an indication of the desired OAM mode to the signal receiver, and then switches to that OAM mode. Furthermore, upon receiving the indication, the signal receiver demodulates and decodes the indication to determine the desired OAM mode, and then switches to that OAM mode.

[0004] However, in related technologies, it takes time for the signal receiving end to complete demodulation and decoding of the indication information. Furthermore, different signal receiving ends have different demodulation and decoding capabilities, resulting in a switching delay between the time the signal receiving end receives the switching signal and the time the mode switch is completed. Therefore, an OAM mode switching method is urgently needed to avoid mode asynchrony between the transmitting and receiving ends caused by the switching delay at the signal receiving end.

[0005] Summary of the Invention

[0006] The present disclosure proposes an OAM mode switching method, apparatus, device, and storage medium to avoid mode asynchrony between a transmitter and a receiver due to a switching delay at a signal receiving end.

[0007] In a first aspect, an embodiment of the present disclosure provides an OAM mode switching method, which is executed by a network device and includes:

[0008] Determine the time interval required for the relay device and / or the terminal device to complete demodulation and decoding of the indication information of the OAM mode;

[0009] Determine the target OAM mode to which the relay device and / or terminal device is to switch;

[0010] Sending indication information of the target OAM mode to the relay device and / or terminal device;

[0011] The OAM mode is switched based on the time interval.

[0012] The present disclosure provides an OAM mode switching method, in which a network device determines the time interval required for a relay device and / or a terminal device to complete demodulation and decoding of the indication information of the OAM mode; thereafter, the network device determines the target OAM mode to which the relay device and / or the terminal device is to switch; and sends the indication information of the target OAM mode to the relay device and / or the terminal device; finally, the OAM mode is switched based on the time interval. It can be seen that in the embodiment of the present disclosure, after the network device determines the time interval required for the relay device and / or the terminal device to complete demodulation and decoding of the indication information of the OAM mode, the time interval is taken into account when subsequently switching the OAM mode. At the same time, the relay device and / or the terminal device also take the time interval into account when switching the OAM mode, thereby enabling the network device and the relay device and / or the terminal device to perform OAM switching at the same or similar time, reducing the switching delay, avoiding the mode asynchrony between the relay device and / or the terminal device and the network device due to the switching delay of the terminal device, and ensuring the stability of the OAM switching.

[0013] In a second aspect, an embodiment of the present disclosure provides an OAM mode switching method, which is performed by a relay device and / or a terminal device, including:

[0014] Determine the time interval required for the relay device and / or the terminal device to complete demodulation and decoding of the indication information of the OAM mode;

[0015] Receiving indication information of a target OAM mode sent by a network device;

[0016] The OAM mode is switched based on the time interval.

[0017] In a third aspect, an embodiment of the present disclosure provides a communication device, which is configured in a network device and includes:

[0018] a processing module, configured to determine a time interval required for a relay device and / or a terminal device to complete demodulation and decoding of indication information of an OAM mode;

[0019] The processing module is further configured to determine a target OAM mode to be switched by the relay device and / or the terminal device;

[0020] a transceiver module, configured to send indication information of the target OAM mode to the relay device and / or terminal device;

[0021] The processing module is further configured to switch the OAM mode based on the time interval.

[0022] In a fourth aspect, an embodiment of the present disclosure provides a communication device, which is configured in a relay device and / or a terminal device, including:

[0023] a processing module, configured to determine a time interval required for a relay device and / or a terminal device to complete demodulation and decoding of indication information of an OAM mode;

[0024] A transceiver module, configured to receive indication information of a target OAM mode sent by a network device;

[0025] The processing module is further configured to switch the OAM mode based on the time interval.

[0026] In a fifth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor. When the processor calls a computer program in a memory, it executes the method described in the first aspect above.

[0027] In a sixth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor. When the processor calls a computer program in a memory, it executes the method described in the second aspect above.

[0028] In the seventh aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the method described in the first aspect above.

[0029] In an eighth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the method described in the second aspect above.

[0030] In a ninth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the method described in the first aspect above.

[0031] In the tenth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the method described in the second aspect above.

[0032] In the eleventh aspect, an embodiment of the present disclosure provides a communication system, which includes the communication device described in the third aspect to the communication device described in the fourth aspect, or the system includes the communication device described in the fifth aspect to the communication device described in the sixth aspect, or the system includes the communication device described in the seventh aspect to the communication device described in the eighth aspect, or the system includes the communication device described in the ninth aspect to the communication device described in the tenth aspect.

[0033] In the twelfth aspect, an embodiment of the present invention provides a computer-readable storage medium for storing instructions used for the above-mentioned network device and / or the above-mentioned terminal device. When the instructions are executed, the network device executes the method described in the first aspect above, and / or the terminal device executes the method described in the second aspect above.

[0034] In a thirteenth aspect, the present disclosure further provides a computer program product comprising a computer program, which, when executed on a computer, enables the computer to execute the method described in any one of the first to second aspects above.

[0035] In a fourteenth aspect, the present disclosure provides a chip system comprising at least one processor and an interface for supporting a network device to implement the functions involved in the methods described in the first aspect, and / or supporting a terminal device to implement the functions involved in the methods described in the second aspect, for example, determining or processing at least one of the data and information involved in the above methods. In one possible design, the chip system further comprises a memory, which is used to store computer programs and data necessary for the source slave node. The chip system may be composed of a chip, or may include a chip and other discrete devices.

[0036] In a fifteenth aspect, the present disclosure provides a computer program, which, when executed on a computer, enables the computer to execute the method described in any one of the first to second aspects above. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0038] FIG1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure;

[0039] FIG2 is a schematic flow chart of an OAM mode switching method provided in another embodiment of the present disclosure;

[0040] FIG3 is a flow chart of an OAM mode switching method provided in yet another embodiment of the present disclosure;

[0041] FIG4 is a schematic flow chart of an OAM mode switching method provided by yet another embodiment of the present disclosure;

[0042] FIG5 is a schematic flow chart of an OAM mode switching method provided in another embodiment of the present disclosure;

[0043] FIG6 is a schematic flow chart of an OAM mode switching method provided in yet another embodiment of the present disclosure;

[0044] 7a-7b are schematic flow charts of an OAM mode switching method provided by yet another embodiment of the present disclosure;

[0045] FIG8 is a schematic flow chart of an OAM mode switching method provided by yet another embodiment of the present disclosure;

[0046] FIG9 is a schematic flow chart of an OAM mode switching method provided in yet another embodiment of the present disclosure;

[0047] FIG10 is a schematic flow chart of an OAM mode switching method provided in yet another embodiment of the present disclosure;

[0048] FIG11 is a schematic flow chart of an OAM mode switching method provided by yet another embodiment of the present disclosure;

[0049] FIG12 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure;

[0050] FIG13 is a schematic structural diagram of a communication device provided by another embodiment of the present disclosure;

[0051] FIG14 is a block diagram of a communication device provided by an embodiment of the present disclosure;

[0052] FIG15 is a schematic structural diagram of a chip provided in accordance with an embodiment of the present disclosure. DETAILED DESCRIPTION

[0053] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0054] The terms used in the embodiments of the present disclosure are for the purpose of describing specific embodiments only and are not intended to limit the embodiments of the present disclosure. The singular forms "a," "an," and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0055] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if" and "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0056] The embodiments of the present disclosure are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be understood as limiting the present disclosure.

[0057] To facilitate understanding, the terms involved in this application are first introduced.

[0058] 1. Relay equipment

[0059] A device used to implement relay communication between terminal devices and base stations.

[0060] 2. OAM

[0061] Angular momentum due to the spiral phase structure of the light beam.

[0062] It should be noted that in this application, the indication information configuration method provided in any embodiment can be executed alone, and any implementation method in the embodiment can also be executed alone, or combined with other embodiments, or possible implementation methods in other embodiments, and can also be executed together with any technical solution in the related technology.

[0063] In order to better understand the method for determining the side link duration disclosed in an embodiment of the present application, the communication system to which the embodiment of the present application is applicable is first described below.

[0064] Please refer to Figure 1, which is a schematic diagram of the architecture of a communication system provided in an embodiment of the present disclosure. The communication system may include, but is not limited to, a network device, a relay device, and a terminal device. The number and configuration of devices shown in Figure 1 are for example purposes only and do not constitute a limitation on the embodiments of the present disclosure. In actual applications, two or more network devices and two or more terminal devices may be included. The communication system shown in Figure 1 includes, for example, a network device 11, a relay device 12, and a terminal device 13.

[0065] It should be noted that the technical solutions of the embodiments of the present disclosure can be applied to various communication systems, such as long-term evolution (LTE) systems, fifth-generation (5G) mobile communication systems, 5G new radio (NR) systems, or other future new mobile communication systems.

[0066] The network device 11 in the embodiment of the present disclosure is an entity on the network side for transmitting or receiving signals. For example, the network device 11 can be an evolved NodeB (eNB), a transmission reception point (TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system. The embodiment of the present disclosure does not limit the specific technology and specific device form adopted by the network device. The network device provided in the embodiment of the present disclosure can be composed of a centralized unit (CU) and a distributed unit (DU), wherein the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the network device, such as the base station, and the functions of some protocol layers are placed in the CU for centralized control, and the functions of the remaining part or all of the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU.

[0067] The relay device 12 and the terminal device 13 in the embodiment of the present disclosure can be an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal device can also be called a terminal device (terminal), user equipment (UE), mobile station (MS), mobile terminal device (MT), etc. The terminal device can be a car with communication function, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home), etc. The embodiment of the present disclosure does not limit the specific technology and specific device form adopted by the terminal device.

[0068] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0069] The OAM mode switching method, apparatus, device, and storage medium provided by the embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0070] FIG2 is a flow chart of an OAM mode switching method provided by an embodiment of the present disclosure. The method is executed by a network device. As shown in FIG2 , the OAM mode switching method may include the following steps:

[0071] Step 201: Determine the time interval required for a relay device and / or a terminal device to complete demodulation and decoding of indication information of an OAM mode.

[0072] In one embodiment of the present disclosure, a communication connection is established between the relay device and / or the terminal device and the network device.

[0073] In addition, in one embodiment of the present disclosure, the time interval is N time units, where N is a positive integer, wherein the time unit can be any one or more of an absolute time unit (such as N seconds or N milliseconds), the number of orthogonal frequency division multiplexing (OFDM) symbols (such as N OFDM symbols), the number of time slots (such as N time slots), and the number of subframes (such as N subframes).

[0074] Furthermore, in one embodiment of the present disclosure, the method for determining the time interval required for the relay device and / or the terminal device to complete demodulation and decoding of the indication information of the OAM mode may include at least one of the following:

[0075] Obtain the time interval reported by relay devices and / or terminal devices;

[0076] Determine the time interval corresponding to the relay device and / or terminal device based on the protocol agreement.

[0077] Step 202: Determine the target OAM mode to which the relay device and / or terminal device is to switch.

[0078] In one embodiment of the present disclosure, the network device may determine the target OAM mode based on a channel measurement result of a channel between a relay device and / or a terminal device and the network device. The target OAM mode may be an OAM set including at least one OAM mode.

[0079] Step 203: Send indication information of the target OAM mode to the relay device and / or the terminal device.

[0080] In one embodiment of the present disclosure, the network device may send target OAM mode indication information to the relay device and / or the terminal device through signaling, which may specifically include at least one of the following methods:

[0081] Sending the indication information to the relay device and / or terminal device through downlink control information (DCI) signaling;

[0082] Sending the indication information to the relay device and / or the terminal device through Radio Resource Control (RRC) signaling;

[0083] The indication information is sent to the relay device and / or the terminal device through Media Access Control Random Access Response (MAC-CE) signaling.

[0084] Furthermore, in one embodiment of the present disclosure, a network device may send different indication information to a relay device and / or a terminal device, respectively indicating the target OAM modes corresponding to the uplink and downlink channels; and / or, the network device may send indication information to a relay device and / or a terminal device, uniformly indicating the target OAM modes corresponding to the uplink and downlink channels. This will be described in detail in subsequent embodiments.

[0085] Step 204: Switch the OAM mode based on the time interval.

[0086] In one embodiment of the present disclosure, a specific method for a network device to switch the OAM mode based on the time interval will be described in detail in subsequent embodiments.

[0087] In summary, in the OAM mode switching method provided by the embodiment of the present disclosure, the network device will determine the time interval required for the relay device and / or terminal device to complete demodulation and decoding of the indication information of the OAM mode; then, it will determine the target OAM mode to which the relay device and / or terminal device is to switch; and send the indication information of the target OAM mode to the relay device and / or terminal device; finally, the OAM mode will be switched based on the time interval. It can be seen that in the embodiment of the present disclosure, after the network device determines the time interval required for the relay device and / or terminal device to complete demodulation and decoding of the indication information of the OAM mode, the time interval will be taken into account when subsequently switching the OAM mode. At the same time, the relay device and / or terminal device will also take the time interval into account when switching the OAM mode, so that the network device and the relay device and / or terminal device can perform OAM switching at the same or similar time, reducing the switching delay, avoiding the mode asynchrony between the relay device and / or terminal device and the network device due to the switching delay of the terminal device, and ensuring the stability of the OAM switching.

[0088] FIG3 is a flow chart of an OAM mode switching method provided by an embodiment of the present disclosure. The method is executed by a network device. As shown in FIG3 , the OAM mode switching method may include the following steps:

[0089] Step 301: Determine the time interval required for a relay device and / or a terminal device to complete demodulation and decoding of indication information of an OAM mode.

[0090] Step 302: Determine the target OAM mode to which the relay device and / or terminal device is to switch.

[0091] For a detailed description of steps 301 - 302 , please refer to the above embodiment description.

[0092] Step 303: Send different indication information to the relay device and / or the terminal device, respectively indicating the target OAM modes corresponding to the uplink and downlink channels.

[0093] In one embodiment of the present disclosure, the target OAM modes corresponding to the uplink and downlink channels may be different. Therefore, it is necessary to indicate the target OAM modes of the uplink and downlink channels separately. Specifically, the network device may send first indication information indicating the target OAM mode corresponding to the uplink channel to the relay device and / or the terminal device, and / or send second indication information indicating the target OAM mode corresponding to the downlink channel to the relay device and / or the terminal device.

[0094] In addition, it should be noted that, as can be seen from the contents of the aforementioned embodiments, the network device can send indication information to the relay device and / or terminal device through at least one of DCI signaling, RRC signaling, and MAC-CE signaling. Based on this, the above-mentioned first indication information and the second indication information can be included in the same signaling (such as both included in DCI signaling or RRC signaling or MAC-CE signaling) and sent to the relay device and / or terminal device. Alternatively, the above-mentioned first indication information and the second indication information can also be included in different signalings and sent to the relay device and / or terminal device. For example, the first indication information and the second indication information can be included in different signalings of the same type. For example, the first indication information can be included in the DCI-1 signaling, and the second indication information can be included in the DCI-2 signaling.

[0095] Step 304: Switch the OAM mode based on the time interval.

[0096] In one embodiment of the present disclosure, a specific method for a network device to switch the OAM mode based on the time interval will be described in detail in subsequent embodiments.

[0097] In summary, in the OAM mode switching method provided by the embodiment of the present disclosure, the network device will determine the time interval required for the relay device and / or terminal device to complete demodulation and decoding of the indication information of the OAM mode; then, it will determine the target OAM mode to which the relay device and / or terminal device is to switch; and send the indication information of the target OAM mode to the relay device and / or terminal device; finally, the OAM mode will be switched based on the time interval. It can be seen that in the embodiment of the present disclosure, after the network device determines the time interval required for the relay device and / or terminal device to complete demodulation and decoding of the indication information of the OAM mode, the time interval will be taken into account when subsequently switching the OAM mode. At the same time, the relay device and / or terminal device will also take the time interval into account when switching the OAM mode, so that the network device and the relay device and / or terminal device can perform OAM switching at the same or similar time, reducing the switching delay, avoiding the mode asynchrony between the relay device and / or terminal device and the network device due to the switching delay of the terminal device, and ensuring the stability of the OAM switching.

[0098] FIG4 is a flow chart of an OAM mode switching method provided by an embodiment of the present disclosure. The method is executed by a network device. As shown in FIG4 , the OAM mode switching method may include the following steps:

[0099] Step 401: Determine the time interval required for a relay device and / or a terminal device to complete demodulation and decoding of indication information of an OAM mode.

[0100] Step 402: Determine the target OAM mode to which the relay device and / or terminal device is to switch.

[0101] For a detailed description of steps 401 - 402 , please refer to the above embodiment description.

[0102] Step 403: Send indication information for uniformly indicating the target OAM modes corresponding to the uplink and downlink channels to the relay device and / or the terminal device.

[0103] In one embodiment of the present disclosure, based on the assumption of channel reciprocity, the uplink and downlink channels may use the same OAM mode over a period of time. For example, in the case of time division duplexing (TDD), the indication information of the target OAM mode corresponding to the uplink and downlink channels can be uniformly indicated instead of separately, thereby saving signaling overhead.

[0104] Specifically, the network device may send indication information to the relay device and / or the terminal device, where the target OAM mode indicated by the indication information is the target OAM mode uniformly corresponding to the uplink channel and the downlink channel.

[0105] And, for other details about step 403, please refer to the description of the above embodiment.

[0106] Step 404: Switch the OAM mode based on the time interval.

[0107] In one embodiment of the present disclosure, a specific method for a network device to switch the OAM mode based on the time interval will be described in detail in subsequent embodiments.

[0108] In summary, in the OAM mode switching method provided by the embodiment of the present disclosure, the network device will determine the time interval required for the relay device and / or terminal device to complete demodulation and decoding of the indication information of the OAM mode; then, it will determine the target OAM mode to which the relay device and / or terminal device is to switch; and send the indication information of the target OAM mode to the relay device and / or terminal device; finally, the OAM mode will be switched based on the time interval. It can be seen that in the embodiment of the present disclosure, after the network device determines the time interval required for the relay device and / or terminal device to complete demodulation and decoding of the indication information of the OAM mode, the time interval will be taken into account when subsequently switching the OAM mode. At the same time, the relay device and / or terminal device will also take the time interval into account when switching the OAM mode, so that the network device and the relay device and / or terminal device can perform OAM switching at the same or similar time, reducing the switching delay, avoiding the mode asynchrony between the relay device and / or terminal device and the network device due to the switching delay of the terminal device, and ensuring the stability of the OAM switching.

[0109] FIG5 is a flow chart of an OAM mode switching method provided by an embodiment of the present disclosure. The method is executed by a network device. As shown in FIG5 , the OAM mode switching method may include the following steps:

[0110] Step 501: Determine the time interval required for a relay device and / or a terminal device to complete demodulation and decoding of indication information of an OAM mode.

[0111] Step 502: Determine the target OAM mode to which the relay device and / or terminal device is to switch.

[0112] Step 503: Send indication information of the target OAM mode to the relay device and / or the terminal device.

[0113] For a detailed description of steps 501-503, please refer to the above embodiment description.

[0114] Step 504: In response to the target OAM mode being different from the original OAM mode, switch the OAM mode based on the time interval.

[0115] In one embodiment of the present disclosure, the original OAM mode is the OAM mode adopted by the network device before the switch.

[0116] Furthermore, in one embodiment of the present disclosure, a method for switching OAM modes based on a time interval may include:

[0117] During a first time period, communication is performed with a relay device and / or a terminal device based on a specific method; wherein the first time period is from a first moment to a second moment, wherein the first moment is the moment when the network device sends the indication information, and the second moment is the sum of the first moment and the time interval; and the specific method is determined by a protocol agreement or autonomously by the network device. In response to the specific method being autonomously determined by the network device, the network device is also required to configure the specific method for the relay device and / or the terminal device, and the specific method may include any of the following:

[0118] The OAM mode corresponding to the most recently used data channel;

[0119] OAM mode corresponding to the control channel

[0120] Specified OAM mode; wherein, the specified OAM mode may be agreed in advance between the base station and the relay device and / or the terminal device, or the specified OAM mode may be configured in advance by the base station to the relay device and / or the terminal device.

[0121] In the second time period, switch to the target OAM mode to communicate with the relay device and / or terminal device based on the target OAM mode, wherein the second time period is: from the second moment to the third moment, and the third moment is the moment when the network device sends new indication information.

[0122] In one embodiment of the present disclosure, the first moment, the second moment, and the third moment may include any one of an absolute moment, an OFDM symbol number, a time slot number, and a subframe number.

[0123] Also, it should be noted that, in one embodiment of the present disclosure, in response to any one of the OFDM symbol number, time slot number, and subframe number at the first moment, the second moment, and the third moment, the OFDM symbol number or time slot number or subframe number corresponding to the first moment, the second moment, and the third moment can be determined with the sending timing or receiving timing of the wireless frame as a reference benchmark.

[0124] Specifically, the transmit and receive frames of a radio frame are both 10 milliseconds (ms), where 10 ms = 10 subframes. Taking a subcarrier bandwidth of 15 kilohertz (kHz) as an example, 1 subframe = 1 time slot = 14 OFDM symbols, so a radio frame has 140 OFDM symbols. When determining an OFDM symbol based on the transmit or receive timing of a radio frame as a reference, the OFDM symbol specifically determined is: the OFDM symbol in the time slot of the subframe. When determining a time slot number based on the transmit or receive timing of a radio frame as a reference, the time slot number specifically determined is: the time slot in the subframe. When determining a subframe number based on the transmit or receive timing of a radio frame as a reference, the time slot number specifically determined is: the subframe.

[0125] In summary, in the OAM mode switching method provided by the embodiment of the present disclosure, the network device will determine the time interval required for the relay device and / or terminal device to complete demodulation and decoding of the indication information of the OAM mode; then, it will determine the target OAM mode to which the relay device and / or terminal device is to switch; and send the indication information of the target OAM mode to the relay device and / or terminal device; finally, the OAM mode will be switched based on the time interval. It can be seen that in the embodiment of the present disclosure, after the network device determines the time interval required for the relay device and / or terminal device to complete demodulation and decoding of the indication information of the OAM mode, the time interval will be taken into account when subsequently switching the OAM mode. At the same time, the relay device and / or terminal device will also take the time interval into account when switching the OAM mode, so that the network device and the relay device and / or terminal device can perform OAM switching at the same or similar time, reducing the switching delay, avoiding the mode asynchrony between the relay device and / or terminal device and the network device due to the switching delay of the terminal device, and ensuring the stability of the OAM switching.

[0126] FIG6 is a flow chart of an OAM mode switching method provided by an embodiment of the present disclosure. The method is executed by a network device. As shown in FIG6 , the OAM mode switching method may include the following steps:

[0127] Step 601: Determine the time interval required for a relay device and / or a terminal device to complete demodulation and decoding of indication information of an OAM mode.

[0128] Step 602: Determine the target OAM mode to which the relay device and / or terminal device is to switch.

[0129] Step 603: Send indication information of the target OAM mode to the relay device and / or the terminal device.

[0130] For a detailed description of steps 601-603, please refer to the above embodiment description.

[0131] Step 604: In response to the target OAM mode being the same as the original OAM mode, the OAM mode is not switched.

[0132] In summary, in the OAM mode switching method provided by the embodiment of the present disclosure, the network device will determine the time interval required for the relay device and / or terminal device to complete demodulation and decoding of the indication information of the OAM mode; then, it will determine the target OAM mode to which the relay device and / or terminal device is to switch; and send the indication information of the target OAM mode to the relay device and / or terminal device; finally, the OAM mode will be switched based on the time interval. It can be seen that in the embodiment of the present disclosure, after the network device determines the time interval required for the relay device and / or terminal device to complete demodulation and decoding of the indication information of the OAM mode, the time interval will be taken into account when subsequently switching the OAM mode. At the same time, the relay device and / or terminal device will also take the time interval into account when switching the OAM mode, so that the network device and the relay device and / or terminal device can perform OAM switching at the same or similar time, reducing the switching delay, avoiding the mode asynchrony between the relay device and / or terminal device and the network device due to the switching delay of the terminal device, and ensuring the stability of the OAM switching.

[0133] FIG7a is a flow chart of an OAM mode switching method provided in an embodiment of the present disclosure. The method is performed by a relay device and / or a terminal device. As shown in FIG7a , the OAM mode switching method may include the following steps:

[0134] Step 701a: Determine the time interval required for the relay device and / or the terminal device to complete demodulation and decoding of the indication information of the OAM mode.

[0135] In one embodiment of the present disclosure, the time interval is N time units, N is a positive integer, and the time unit is any one of an absolute time unit, the number of OFDM symbols, the number of time slots, and the number of subframes.

[0136] Furthermore, in one embodiment of the present disclosure, determining the time interval required for the relay device and / or the terminal device to complete demodulation and decoding of the indication information of the OAM modality includes at least one of the following:

[0137] Determine the time interval corresponding to the relay device and / or terminal device based on the protocol agreement;

[0138] Autonomously determine the time interval corresponding to the relay device and / or terminal device.

[0139] Step 702a: Receive indication information of the target OAM mode sent by the network device.

[0140] In one embodiment of the present disclosure, the target OAM mode is an OAM set including at least one OAM mode.

[0141] Furthermore, in one embodiment of the present disclosure, the relay device and / or the terminal device may receive indication information of the target OAM mode sent by the network device through signaling, specifically including at least one of the following:

[0142] Receiving the indication information sent by the network device through DCI signaling;

[0143] Receiving the indication information sent by the network device through RRC signaling;

[0144] The indication information is received from the network device through MAC-CE signaling.

[0145] Step 703a: Switch the OAM mode based on the time interval.

[0146] For a detailed description of steps 701a-703a, please refer to the above embodiment description.

[0147] In summary, in the OAM mode switching method provided by the embodiment of the present disclosure, the relay device and / or terminal device will determine the time interval required for it to complete demodulation and decoding of the indication information of the OAM mode; thereafter, upon receiving the indication information of the target OAM mode sent by the network device, the OAM mode will be switched based on the time interval. It can be seen that in the embodiment of the present disclosure, after the relay device and / or terminal device determines the time interval required for it to complete demodulation and decoding of the indication information of the OAM mode, the time interval will be taken into account when subsequently switching the OAM mode. At the same time, the network device will also perform OAM mode switching based on the time interval, thereby avoiding the switching delay between the switching on the network device side and the switching on the relay device and / or terminal device side, thereby ensuring the stability of the OAM switching.

[0148] FIG7 b is a flow chart of an OAM mode switching method provided in an embodiment of the present disclosure. The method is performed by a relay device and / or a terminal device. As shown in FIG7 b , the OAM mode switching method may include the following steps:

[0149] Step 701b: Report the time interval required to complete demodulation and decoding of the indication information of the OAM mode to the network device.

[0150] In summary, in the OAM mode switching method provided by the embodiment of the present disclosure, the relay device and / or terminal device will determine the time interval required for it to complete demodulation and decoding of the indication information of the OAM mode; thereafter, upon receiving the indication information of the target OAM mode sent by the network device, the OAM mode will be switched based on the time interval. It can be seen that in the embodiment of the present disclosure, after the relay device and / or terminal device determines the time interval required for it to complete demodulation and decoding of the indication information of the OAM mode, the time interval will be taken into account when subsequently switching the OAM mode. At the same time, the network device will also perform OAM mode switching based on the time interval, thereby avoiding the switching delay between the switching on the network device side and the switching on the relay device and / or terminal device side, thereby ensuring the stability of the OAM switching.

[0151] FIG8 is a flow chart of an OAM mode switching method provided in an embodiment of the present disclosure. The method is performed by a relay device and / or a terminal device. As shown in FIG8 , the OAM mode switching method may include the following steps:

[0152] Step 801: Determine the time interval required for a relay device and / or a terminal device to complete demodulation and decoding of indication information of an OAM mode.

[0153] Step 802: Receive different indication information sent by the network device for indicating target OAM modes corresponding to the uplink and downlink channels respectively.

[0154] Step 803: Switch the OAM mode based on the time interval.

[0155] For a detailed description of steps 801-803, please refer to the above embodiment description.

[0156] In summary, in the OAM mode switching method provided by the embodiment of the present disclosure, the relay device and / or terminal device will determine the time interval required for it to complete demodulation and decoding of the indication information of the OAM mode; thereafter, upon receiving the indication information of the target OAM mode sent by the network device, the OAM mode will be switched based on the time interval. It can be seen that in the embodiment of the present disclosure, after the relay device and / or terminal device determines the time interval required for it to complete demodulation and decoding of the indication information of the OAM mode, the time interval will be taken into account when subsequently switching the OAM mode. At the same time, the network device will also perform OAM mode switching based on the time interval, thereby avoiding the switching delay between the switching on the network device side and the switching on the relay device and / or terminal device side, thereby ensuring the stability of the OAM switching.

[0157] FIG9 is a flow chart of an OAM mode switching method provided in an embodiment of the present disclosure. The method is executed by a relay device and / or a terminal device. As shown in FIG9 , the OAM mode switching method may include the following steps:

[0158] Step 901: Determine the time interval required for a relay device and / or a terminal device to complete demodulation and decoding of indication information of an OAM mode.

[0159] Step 902: Receive indication information sent by a network device for uniformly indicating target OAM modes corresponding to uplink and downlink channels.

[0160] Step 903: Switch the OAM mode based on the time interval.

[0161] For a detailed description of steps 901-903, please refer to the above embodiment description.

[0162] In summary, in the OAM mode switching method provided by the embodiment of the present disclosure, the relay device and / or terminal device will determine the time interval required for it to complete demodulation and decoding of the indication information of the OAM mode; thereafter, upon receiving the indication information of the target OAM mode sent by the network device, the OAM mode will be switched based on the time interval. It can be seen that in the embodiment of the present disclosure, after the relay device and / or terminal device determines the time interval required for it to complete demodulation and decoding of the indication information of the OAM mode, the time interval will be taken into account when subsequently switching the OAM mode. At the same time, the network device will also perform OAM mode switching based on the time interval, thereby avoiding the switching delay between the switching on the network device side and the switching on the relay device and / or terminal device side, thereby ensuring the stability of the OAM switching.

[0163] FIG10 is a flow chart of an OAM mode switching method provided in an embodiment of the present disclosure. The method is executed by a relay device and / or a terminal device. As shown in FIG10 , the OAM mode switching method may include the following steps:

[0164] Step 1001: Determine the time interval required for a relay device and / or a terminal device to complete demodulation and decoding of indication information of an OAM mode.

[0165] Step 1002: Receive indication information of a target OAM mode sent by a network device.

[0166] For a detailed description of steps 1001 - 1002 , please refer to the above embodiment description.

[0167] Step 1003: In response to the target OAM mode being different from the original OAM mode, switch the OAM mode based on a time interval.

[0168] In one embodiment of the present disclosure, the original OAM mode is the OAM mode adopted by the network device before the switch.

[0169] Furthermore, in one embodiment of the present disclosure, the method for switching OAM modes based on time intervals may include:

[0170] During a third time period, communicate with the relay device and / or the terminal device based on a specific manner; wherein the third time period is from a fourth moment to a fifth moment, the fourth moment being the moment when the relay device and / or the terminal device receives the indication information, and the fifth moment being the sum of the fourth moment and the time interval; and the specific manner is determined by a protocol agreement or a network device configuration, and may include any one of the following:

[0171] The OAM mode corresponding to the most recently used data channel;

[0172] OAM mode corresponding to the control channel

[0173] Specified OAM mode; wherein, the specified OAM mode may be agreed in advance between the base station and the relay device and / or the terminal device, or the specified OAM mode may be configured in advance by the base station to the relay device and / or the terminal device.

[0174] During a fourth time period, communication is performed with the relay device and / or terminal device based on the target OAM mode, wherein the fourth time period is from the fifth moment to the sixth moment, and the sixth moment is the moment when the relay device and / or terminal device receives new indication information.

[0175] In one embodiment of the present disclosure, the fourth moment, the fifth moment, and the sixth moment may include any one of an absolute moment, an OFDM symbol number, a time slot number, and a subframe number.

[0176] Also, it should be noted that, in one embodiment of the present disclosure, in response to the fourth moment, the fifth moment, and the sixth moment including any one of the OFDM symbol number, the time slot number, and the subframe number, the OFDM symbol number or the time slot number or the subframe number corresponding to the fourth moment, the fifth moment, and the sixth moment can be determined with the sending timing or the receiving timing of the wireless frame as a reference benchmark.

[0177] Specifically, the transmit and receive frames of a radio frame are both 10 ms, where 10 ms = 10 subframes. Taking a subcarrier bandwidth of 15 kHz as an example, 1 subframe = 1 time slot = 14 OFDM symbols, so a radio frame has 140 OFDM symbols. When determining an OFDM symbol based on the transmit or receive timing of a radio frame as a reference, the OFDM symbol specifically determined is: the OFDM symbol in the time slot of the subframe. When determining a time slot number based on the transmit or receive timing of a radio frame as a reference, the time slot number specifically determined is: the time slot in the subframe. When determining a subframe number based on the transmit or receive timing of a radio frame as a reference, the time slot number specifically determined is: the subframe.

[0178] In summary, in the OAM mode switching method provided by the embodiment of the present disclosure, the relay device and / or terminal device will determine the time interval required for it to complete demodulation and decoding of the indication information of the OAM mode; thereafter, upon receiving the indication information of the target OAM mode sent by the network device, the OAM mode will be switched based on the time interval. It can be seen that in the embodiment of the present disclosure, after the relay device and / or terminal device determines the time interval required for it to complete demodulation and decoding of the indication information of the OAM mode, the time interval will be taken into account when subsequently switching the OAM mode. At the same time, the network device will also perform OAM mode switching based on the time interval, thereby avoiding the switching delay between the switching on the network device side and the switching on the relay device and / or terminal device side, thereby ensuring the stability of the OAM switching.

[0179] FIG11 is a flow chart of an OAM mode switching method provided in an embodiment of the present disclosure. The method is performed by a relay device and / or a terminal device. As shown in FIG11 , the OAM mode switching method may include the following steps:

[0180] Step 1101: Determine the time interval required for a relay device and / or a terminal device to complete demodulation and decoding of indication information of an OAM mode.

[0181] Step 1102: Receive indication information of the target OAM mode sent by the network device.

[0182] For a detailed description of steps 1101 - 1102 , please refer to the above embodiment description.

[0183] Step 1103: In response to the target OAM mode being the same as the original OAM mode, the OAM mode is not switched.

[0184] In one embodiment of the present disclosure, the original OAM mode is the OAM mode adopted by the network device before the switch.

[0185] In summary, in the OAM mode switching method provided by the embodiment of the present disclosure, the relay device and / or terminal device will determine the time interval required for it to complete demodulation and decoding of the indication information of the OAM mode; thereafter, upon receiving the indication information of the target OAM mode sent by the network device, the OAM mode will be switched based on the time interval. It can be seen that in the embodiment of the present disclosure, after the relay device and / or terminal device determines the time interval required for it to complete demodulation and decoding of the indication information of the OAM mode, the time interval will be taken into account when subsequently switching the OAM mode. At the same time, the network device will also perform OAM mode switching based on the time interval, thereby avoiding the switching delay between the switching on the network device side and the switching on the relay device and / or terminal device side, thereby ensuring the stability of the OAM switching.

[0186] FIG12 is a schematic diagram of the structure of a communication device provided by an embodiment of the present disclosure. As shown in FIG12 , the device may include:

[0187] a processing module, configured to determine a time interval required for a relay device and / or a terminal device to complete demodulation and decoding of indication information of an OAM mode;

[0188] The processing module is further configured to determine a target OAM mode to be switched by the relay device and / or the terminal device;

[0189] a transceiver module, configured to send indication information of the target OAM mode to the relay device and / or terminal device;

[0190] The processing module is further configured to switch the OAM mode based on the time interval.

[0191] In summary, in the communication device provided by the embodiment of the present disclosure, the network device will determine the time interval required for the relay device and / or terminal device to complete demodulation and decoding of the indication information of the OAM mode; then, it will determine the target OAM mode to which the relay device and / or terminal device is to switch; and send the indication information of the target OAM mode to the relay device and / or terminal device; finally, the OAM mode will be switched based on the time interval. It can be seen that in the embodiment of the present disclosure, after the network device determines the time interval required for the relay device and / or terminal device to complete demodulation and decoding of the indication information of the OAM mode, the time interval will be taken into account when subsequently switching the OAM mode. At the same time, the relay device and / or terminal device will also take the time interval into account when switching the OAM mode, so that the network device and the relay device and / or terminal device can perform OAM switching at the same or similar time, reducing the switching delay, avoiding the mode asynchrony between the relay device and / or terminal device and the network device due to the switching delay of the terminal device, and ensuring the stability of the OAM switching.

[0192] Optionally, in one embodiment of the present disclosure, the time interval is N time units, N is a positive integer, and the time unit is any one of an absolute time unit, the number of orthogonal frequency division multiplexing technology OFDM symbols, the number of time slots, and the number of subframes.

[0193] Optionally, in one embodiment of the present disclosure, the processing module is configured to perform at least one of the following:

[0194] Obtaining the time interval reported by the relay device and / or the terminal device;

[0195] The time interval corresponding to the relay device and / or terminal device is determined based on a protocol agreement.

[0196] Optionally, in an embodiment of the present disclosure, the target OAM mode is an OAM set including at least one OAM mode.

[0197] Optionally, in one embodiment of the present disclosure, the transceiver module is used for at least one of the following:

[0198] Sending the indication information to the relay device and / or terminal device through downlink control information DCI signaling;

[0199] Sending the indication information to the relay device and / or terminal device through radio resource control RRC signaling;

[0200] The indication information is sent to the relay device and / or terminal device via Media Access Control-Control Unit MAC-CE signaling.

[0201] Optionally, in one embodiment of the present disclosure, the transceiver module is used for at least one of the following:

[0202] Sending different indication information to the relay device and / or terminal device for indicating target OAM modes corresponding to uplink and downlink channels respectively;

[0203] Send indication information for uniformly indicating the target OAM mode corresponding to the uplink and downlink channels to the relay device and / or terminal device.

[0204] Optionally, in one embodiment of the present disclosure, the processing module is configured to:

[0205] In response to the target OAM mode being the same as the original OAM mode, not switching the OAM mode;

[0206] In response to the target OAM mode being different from the original OAM mode, performing the following operations:

[0207] Communicate with the relay device and / or terminal device in a specific manner within a first time period; wherein the first time period is from a first moment to a second moment, the first moment being the moment when the network device sends the indication information, and the second moment being the sum of the first moment and the time interval; the specific manner includes any one of the following:

[0208] The OAM mode corresponding to the most recently used data channel;

[0209] OAM mode corresponding to the control channel

[0210] Specified OAM mode;

[0211] In a second time period, communication is performed with the relay device and / or terminal device based on the target OAM mode, wherein the second time period is from the second moment to the third moment, and the third moment is the moment when the network device sends new indication information.

[0212] Optionally, in an embodiment of the present disclosure, the first moment, the second moment, and the third moment include any one of an absolute moment, an OFDM symbol number, a time slot number, and a subframe number;

[0213] In which, in response to the first moment, the second moment, and the third moment including any one of the OFDM symbol number, the time slot number, and the subframe number, the OFDM symbol number or the time slot number or the subframe number corresponding to the first moment, the second moment, and the third moment is determined with the sending timing or the receiving timing of the wireless frame as a reference benchmark.

[0214] Optionally, in one embodiment of the present disclosure, the specific method is agreed upon by a protocol or determined autonomously by the network device.

[0215] Optionally, in one embodiment of the present disclosure, in response to the specific mode being autonomously determined by the network device, the apparatus is further configured to:

[0216] The specific mode is configured for the relay device and / or the terminal device.

[0217] FIG13 is a schematic diagram of the structure of a communication device provided by an embodiment of the present disclosure. As shown in FIG13 , the device may include:

[0218] a processing module, configured to determine a time interval required for a relay device and / or a terminal device to complete demodulation and decoding of indication information of an OAM mode;

[0219] A transceiver module, configured to receive indication information of a target OAM mode sent by a network device;

[0220] The processing module is further configured to switch the OAM mode based on the time interval.

[0221] In summary, in the communication device provided in the embodiment of the present disclosure, the relay device and / or the terminal device will determine the time interval required for it to complete demodulation and decoding of the indication information of the OAM mode; thereafter, upon receiving the indication information of the target OAM mode sent by the network device, the OAM mode will be switched based on the time interval. It can be seen that in the embodiment of the present disclosure, after the relay device and / or the terminal device determines the time interval required for it to complete demodulation and decoding of the indication information of the OAM mode, the time interval will be taken into account when subsequently switching the OAM mode, and the network device will also switch the OAM mode based on the time interval, thereby avoiding the switching delay between the switching on the network device side and the switching on the relay device and / or the terminal device side, thereby ensuring the stability of the OAM switching.

[0222] Optionally, in one embodiment of the present disclosure, the time interval is N time units, N is a positive integer, and the time unit is any one of an absolute time unit, the number of OFDM symbols, the number of time slots, and the number of subframes.

[0223] Optionally, in one embodiment of the present disclosure, the processing module is configured to perform at least one of the following:

[0224] Determine the time interval corresponding to the relay device and / or terminal device based on the protocol agreement;

[0225] Autonomously determine the time interval corresponding to the relay device and / or terminal device.

[0226] Optionally, in one embodiment of the present disclosure, the apparatus is further configured to:

[0227] Report the time interval to the network device.

[0228] Optionally, in an embodiment of the present disclosure, the target OAM mode is an OAM set including at least one OAM mode.

[0229] Optionally, in one embodiment of the present disclosure, the transceiver module is used for at least one of the following:

[0230] Receiving the indication information sent by the network device through DCI signaling;

[0231] Receiving the indication information sent by the network device through RRC signaling;

[0232] The indication information is received from the network device through MAC-CE signaling.

[0233] Optionally, in one embodiment of the present disclosure, the transceiver module is used for at least one of the following:

[0234] Receiving different indication information sent by the network device for indicating target OAM modes corresponding to the uplink and downlink channels respectively;

[0235] Receive indication information sent by the network device for uniformly indicating target OAM modes corresponding to uplink and downlink channels.

[0236] Optionally, in one embodiment of the present disclosure, the processing module is configured to:

[0237] In response to the target OAM mode being the same as the original OAM mode, not switching the OAM mode;

[0238] In response to the target OAM mode being different from the original OAM mode, performing the following operations:

[0239] During a third time period, communicate with the relay device and / or the terminal device based on a specific manner; wherein the third time period is from a fourth moment to a fifth moment, the fourth moment being the moment when the relay device and / or the terminal device receives the indication information, and the fifth moment being the sum of the fourth moment and the time interval; the specific manner includes any one of the following:

[0240] The OAM mode corresponding to the most recently used data channel;

[0241] OAM mode corresponding to the control channel

[0242] Specified OAM mode;

[0243] During a fourth time period, communication is performed with the relay device and / or terminal device based on the target OAM mode, wherein the fourth time period is from the fifth moment to the sixth moment, and the sixth moment is the moment when the relay device and / or terminal device receives new indication information.

[0244] Optionally, in one embodiment of the present disclosure, the fourth moment, the fifth moment, and the sixth moment include any one of an absolute moment, an OFDM symbol number, a time slot number, and a subframe number;

[0245] In which, in response to the fourth moment, the fifth moment, and the sixth moment including any one of the OFDM symbol number, the time slot number, and the subframe number, the OFDM symbol number or the time slot number or the subframe number corresponding to the fourth moment, the fifth moment, and the sixth moment is determined with the sending timing or the receiving timing of the wireless frame as a reference benchmark.

[0246] Optionally, in one embodiment of the present disclosure, the specific method is agreed upon by a protocol or configured by the network device.

[0247] Please refer to Figure 14, which is a schematic diagram of the structure of a communication device 1400 provided in an embodiment of the present application. Communication device 1400 can be a network device or a terminal device, or a chip, chip system, or processor that supports the network device to implement the above method. It can also be a chip, chip system, or processor that supports the terminal device to implement the above method. This device can be used to implement the method described in the above method embodiment. For details, please refer to the description of the above method embodiment.

[0248] The communication device 1400 may include one or more processors 1401. The processor 1401 may be a general-purpose processor or a dedicated processor. For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control the communication device (e.g., a base station, a baseband chip, a terminal device, a terminal device chip, a DU or CU, etc.), execute computer programs, and process computer program data.

[0249] Optionally, the communication device 1400 may further include one or more memories 1402, on which a computer program 1404 may be stored. The processor 1401 executes the computer program 1404 to cause the communication device 1400 to perform the method described in the above method embodiment. Optionally, the memory 1402 may also store data. The communication device 1400 and the memory 1402 may be provided separately or integrated together.

[0250] Optionally, the communication device 1400 may further include a transceiver 1405 and an antenna 1406. The transceiver 1405 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., and is configured to implement transceiver functions. The transceiver 1405 may include a receiver and a transmitter. The receiver may be referred to as a receiver or a receiving circuit, etc., and is configured to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., and is configured to implement a transmitting function.

[0251] Optionally, the communication device 1400 may further include one or more interface circuits 1407. The interface circuit 1407 is configured to receive code instructions and transmit the code instructions to the processor 1401. The processor 1401 executes the code instructions to enable the communication device 1400 to perform the method described in the above method embodiment.

[0252] In one implementation, processor 1401 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing the receiving and transmitting functions may be separate or integrated. The transceiver circuit, interface, or interface circuit may be used for reading and writing code / data, or may be used for transmitting or delivering signals.

[0253] In one implementation, processor 1401 may store a computer program 1403. Computer program 1403, when executed on processor 1401, may cause communication device 1400 to perform the method described in the above method embodiment. Computer program 1403 may be embedded in processor 1401, in which case processor 1401 may be implemented by hardware.

[0254] In one implementation, the communication device 1400 may include a circuit that can implement the functions of sending, receiving, or communicating in the aforementioned method embodiments. The processor and transceiver described in this application can be implemented on an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (nMetal-oxide-semiconductor, NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0255] The communication device described in the above embodiments may be a network device or a terminal device, but the scope of the communication device described in this application is not limited thereto, and the structure of the communication device may not be limited to FIG14. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be:

[0256] (1) An independent integrated circuit (IC), or chip, or chip system or subsystem;

[0257] (2) a collection of one or more ICs, optionally including a storage component for storing data and computer programs;

[0258] (3) ASIC, such as modem;

[0259] (4) Modules that can be embedded in other devices;

[0260] (5) Receivers, terminal devices, intelligent terminal devices, cellular phones, wireless devices, handheld devices, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.;

[0261] (6)Others, etc.

[0262] If the communication device can be a chip or a chip system, please refer to the schematic diagram of the chip structure shown in Figure 15. The chip shown in Figure 15 includes a processor 1501 and an interface 1502. The number of processors 1501 can be one or more, and the number of interfaces 1502 can be multiple.

[0263] Optionally, the chip further includes a memory 1503, which is used to store necessary computer programs and data.

[0264] Those skilled in the art will also appreciate that the various illustrative logical blocks and steps listed in the embodiments of the present application can be implemented by electronic hardware, computer software, or a combination of both. Whether such functions are implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art may use various methods to implement the described functions for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of the present application.

[0265] The present application also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.

[0266] 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.

[0267] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, 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 programs. When the computer program is loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program 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 program 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 includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0268] Those skilled in the art will understand that the various numerical numbers such as first and second involved in this application are only for the convenience of description and are not used to limit the scope of the embodiments of this application, and also indicate the order of precedence.

[0269] In this application, at least one can also be described as one or more, and multiple can be two, three, four or more, which is not limited in this application. In the embodiments of this application, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", and there is no order of precedence or size between the technical features described by "first", "second", "third", "A", "B", "C" and "D".

[0270] The correspondences shown in the tables in this application can be configured or predefined. The values ​​of the information in each table are examples only and can be configured to other values, which are not limited by this application. When configuring the correspondence between information and parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, in the tables in this application, the correspondences shown in certain rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables can also use other names that can be understood by the communication device, and the values ​​or representations of the parameters can also use other values ​​or representations that can be understood by the communication device. When implementing the above tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables, etc.

[0271] The predefined in this application may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0272] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software 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 beyond the scope of this application.

[0273] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0274] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A method for switching orbital angular momentum (OAM) modes, characterized in that: The method is performed by a network device, and the method includes: Determine the time interval required for the relay device and / or the terminal device to complete demodulation and decoding of the indication information of the OAM mode; Determine the target OAM mode to which the relay device and / or terminal device is to switch; Sending indication information of the target OAM mode to the relay device and / or terminal device; The OAM mode is switched based on the time interval.

2. The method according to claim 1, wherein The time interval is N time units, where N is a positive integer, and the time unit is any one of an absolute time unit, the number of orthogonal frequency division multiplexing technology OFDM symbols, the number of time slots, and the number of subframes.

3. The method according to claim 1, wherein Determining the time interval required for the relay device and / or the terminal device to complete demodulation and decoding of the indication information of the OAM modality includes at least one of the following: Obtaining the time interval reported by the relay device and / or the terminal device; The time interval corresponding to the relay device and / or terminal device is determined based on a protocol agreement.

4. The method according to claim 1, wherein The target OAM mode is an OAM set including at least one OAM mode.

5. The method according to claim 1, wherein The sending the indication information of the target OAM mode to the relay device and / or the terminal device includes at least one of the following: Sending the indication information to the relay device and / or terminal device through downlink control information DCI signaling; Sending the indication information to the relay device and / or terminal device through radio resource control RRC signaling; The indication information is sent to the relay device and / or terminal device via Media Access Control-Control Unit MAC-CE signaling.

6. The method according to claim 1, wherein The sending the indication information of the target OAM mode to the relay device and / or the terminal device includes at least one of the following: Sending different indication information to the relay device and / or terminal device for indicating target OAM modes corresponding to uplink and downlink channels respectively; Send indication information for uniformly indicating the target OAM mode corresponding to the uplink and downlink channels to the relay device and / or terminal device.

7. The method according to claim 1 or 4, wherein: The switching of the OAM mode based on the time interval includes: In response to the target OAM mode being the same as the original OAM mode, not switching the OAM mode; In response to the target OAM mode being different from the original OAM mode, performing the following operations: Communicate with the relay device and / or terminal device in a specific manner within a first time period; wherein the first time period is from a first moment to a second moment, the first moment being the moment when the network device sends the indication information, and the second moment being the sum of the first moment and the time interval; the specific manner includes any one of the following: The OAM mode corresponding to the most recently used data channel; OAM mode corresponding to the control channel Specified OAM mode; In a second time period, communication is performed with the relay device and / or terminal device based on the target OAM mode, wherein the second time period is from the second moment to the third moment, and the third moment is the moment when the network device sends new indication information.

8. The method according to claim 7, wherein The first moment, the second moment, and the third moment include any one of an absolute moment, an OFDM symbol number, a time slot number, and a subframe number; In which, in response to the first moment, the second moment, and the third moment including any one of the OFDM symbol number, the time slot number, and the subframe number, the OFDM symbol number or the time slot number or the subframe number corresponding to the first moment, the second moment, and the third moment is determined with the sending timing or the receiving timing of the wireless frame as a reference benchmark.

9. The method according to claim 7, wherein: The specific method is determined by a protocol agreement or autonomously by the network device.

10. The method according to claim 9, wherein In response to the specific manner being autonomously determined by the network device, the method further includes: The specific mode is configured for the relay device and / or the terminal device.

11. A method for switching orbital angular momentum (OAM) modes, characterized in that: The method is performed by a relay device and / or a terminal device, and includes: Determine the time interval required for the relay device and / or the terminal device to complete demodulation and decoding of the indication information of the OAM mode; Receiving indication information of a target OAM mode sent by a network device; The OAM mode is switched based on the time interval.

12. The method according to claim 11, wherein The time interval is N time units, where N is a positive integer, and the time unit is any one of an absolute time unit, the number of OFDM symbols, the number of time slots, and the number of subframes.

13. The method according to claim 11, wherein Determining the time interval required for the relay device and / or the terminal device to complete demodulation and decoding of the indication information of the OAM modality includes at least one of the following: Determine the time interval corresponding to the relay device and / or terminal device based on the protocol agreement; Autonomously determine the time interval corresponding to the relay device and / or terminal device.

14. The method according to claim 11, wherein The method further comprises: Report the time interval to the network device.

15. The method according to claim 11, wherein The target OAM mode is an OAM set including at least one OAM mode.

16. The method according to claim 11 or 15, wherein: The receiving the target OAM mode indication information sent by the network device includes at least one of the following: Receiving the indication information sent by the network device through DCI signaling; Receiving the indication information sent by the network device through RRC signaling; The indication information is received from the network device through MAC-CE signaling.

17. The method according to claim 11, wherein The receiving the target OAM mode indication information sent by the network device includes at least one of the following: Receiving different indication information sent by the network device for indicating target OAM modes corresponding to the uplink and downlink channels respectively; Receive indication information sent by the network device for uniformly indicating target OAM modes corresponding to uplink and downlink channels.

18. The method according to claim 11, wherein The switching of the OAM mode based on the time interval includes: In response to the target OAM mode being the same as the original OAM mode, not switching the OAM mode; In response to the target OAM mode being different from the original OAM mode, performing the following operations: During a third time period, communicate with the relay device and / or the terminal device based on a specific manner; wherein the third time period is from a fourth moment to a fifth moment, the fourth moment being the moment when the relay device and / or the terminal device receives the indication information, and the fifth moment being the sum of the fourth moment and the time interval; the specific manner includes any one of the following: The OAM mode corresponding to the most recently used data channel; OAM mode corresponding to the control channel Specified OAM mode; During a fourth time period, communication is performed with the relay device and / or terminal device based on the target OAM mode, wherein the fourth time period is from the fifth moment to the sixth moment, and the sixth moment is the moment when the relay device and / or terminal device receives new indication information.

19. The method according to claim 18, wherein The fourth moment, the fifth moment, and the sixth moment include any one of an absolute moment, an OFDM symbol number, a time slot number, and a subframe number; In which, in response to the fourth moment, the fifth moment, and the sixth moment including any one of the OFDM symbol number, the time slot number, and the subframe number, the OFDM symbol number or the time slot number or the subframe number corresponding to the fourth moment, the fifth moment, and the sixth moment is determined with the sending timing or the receiving timing of the wireless frame as a reference benchmark.

20. The method of claim 18, wherein: The specific method is stipulated by the protocol or configured by the network device.

21. A communication device, characterized in that: The device is configured in a target node and includes: a processing module, configured to determine a time interval required for a relay device and / or a terminal device to complete demodulation and decoding of indication information of an OAM mode; The processing module is further configured to determine a target OAM mode to be switched by the relay device and / or the terminal device; a transceiver module, configured to send indication information of the target OAM mode to the relay device and / or terminal device; The processing module is further configured to switch the OAM mode based on the time interval.

22. A communication device, characterized in that: The device is configured in a relay UE and includes: a processing module, configured to determine a time interval required for a relay device and / or a terminal device to complete demodulation and decoding of indication information of an OAM mode; A transceiver module, configured to receive indication information of a target OAM mode sent by a network device; The processing module is further configured to switch the OAM mode based on the time interval.

23. A communication device, characterized in that: The device includes a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory to cause the device to perform the method according to any one of claims 1 to 10, or the processor executes the computer program stored in the memory to cause the device to perform the method according to any one of claims 1 to 20.

24. A communication device, characterized in that: include: processor and interface circuitry, wherein The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to execute the code instructions to perform the method according to any one of claims 1 to 10, or to execute the code instructions to perform the method according to claims 11 to 20.

25. A computer-readable storage medium storing instructions, which, when executed, enable the method according to any one of claims 1 to 10 to be implemented, or, when executed, enable the method according to claims 11 to 12 to be implemented.

Images