A method and device for determining an orbital angular momentum (OAM) mode

Abstract

The embodiment of the application discloses a kind of OAM mode determination method and device thereof, the method includes: sending the measurement reference signal corresponding to candidate OAM mode to receiving equipment;At least one measurement result of the measurement reference signal sent by receiving equipment is received;Target OAM mode is determined from candidate OAM mode based on measurement result, and it is indicated to receiving equipment.The embodiment of the application provides a kind of OAM mode determination method, by sending the measurement reference signal corresponding to candidate OAM mode, can make receiving equipment to measurement reference signal measurement, obtain measurement result, and then based on measurement result, the interference degree that signal on candidate OAM mode is judged, determines the most suitable target OAM mode, to reduce the interference between mode, improve system capacity.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, in particular to a method and device for determining an OAM mode. BACKGROUND

[0002] In the related art, the use of orbital angular momentum (OAM) for data transmission has been widely studied. However, OAM communication under non-ideal channel conditions will cause inter-modal interference, resulting in a decrease in the signal-to-noise ratio of different modes. Therefore, how to reduce inter-modal interference becomes a problem to be solved. SUMMARY

[0003] Embodiments of the present application provide a method and device for determining an OAM mode. By sending a measurement reference signal corresponding to a candidate OAM mode, the receiving device can measure the measurement reference signal, obtain a measurement result, and then determine the degree of interference on the signal in the candidate OAM mode based on the measurement result to determine the most suitable target OAM mode, thereby reducing inter-modal interference and improving system capacity.

[0004] In a first aspect, embodiments of the present application provide a method for determining an OAM mode, which is suitable for a sending device. The method includes: sending a measurement reference signal corresponding to a candidate OAM mode to a receiving device; receiving a measurement result of at least one measurement reference signal sent by the receiving device; and determining a target OAM mode from the candidate OAM modes based on the measurement result and indicating the target OAM mode to the receiving device.

[0005] Embodiments of the present application provide a method for determining an OAM mode. By sending a measurement reference signal corresponding to a candidate OAM mode, the receiving device can measure the measurement reference signal, obtain a measurement result, and then determine the degree of interference on the signal in the candidate OAM mode based on the measurement result to determine the most suitable target OAM mode, thereby reducing inter-modal interference and improving system capacity.

[0006] In a second aspect, embodiments of the present application provide a method for determining an OAM mode, which is suitable for a receiving device. The method includes: receiving a measurement reference signal corresponding to a candidate OAM mode sent by a sending device; sending a measurement result of at least one measurement reference signal to the sending device; and determining a target OAM mode from the candidate OAM modes based on an indication from the sending device.

[0007] The embodiment of the present application provides a kind of OAM mode determination method, by receiving the measurement reference signal corresponding to candidate OAM mode, the measurement reference signal is measured, and measurement result is acquired, and then make sending device can be based on measurement result on the interference degree of signal on candidate OAM mode is judged, the most suitable target OAM mode is determined, to reduce the interference between modes, improve system capacity.

[0008] In a third aspect, the embodiment of the present application provides a communication device, which has part or all functions of the sending device in the method examples of the first aspect, such as the functions of the communication device can have part or all functions in the embodiments of the present application, or can have the function of implementing any one of the embodiments of the present application alone. The functions can be realized by hardware, or realized by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

[0009] In an implementation manner, the structure of the communication device can include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform the corresponding functions in the above method. The transceiver module is used to support the communication between the communication device and other devices. The communication device can also include a storage module, which is used to be coupled with the transceiver module and the processing module, and saves the necessary computer programs and data of the communication device.

[0010] For example, the processing module can be a processor, the transceiver module can be a transceiver or a communication interface, and the storage module can be a memory.

[0011] In a fourth aspect, the embodiment of the present application provides a communication device, which has part or all functions of the receiving device in the method examples of the second aspect, such as the functions of the communication device can have part or all functions in the embodiments of the present application, or can have the function of implementing any one of the embodiments of the present application alone. The functions can be realized by hardware, or realized by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

[0012] In an implementation manner, the structure of the communication device can include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform the corresponding functions in the above method. The transceiver module is used to support the communication between the communication device and other devices. The communication device can also include a storage module, which is used to be coupled with the transceiver module and the processing module, and saves the necessary computer programs and data of the communication device.

[0013] For example, the processing module can be a processor, the transceiver module can be a transceiver or a communication interface, and the storage module can be a memory.

[0014] In a fifth aspect, an embodiment of the present application provides a communication apparatus, which comprises a processor, and the processor executes the method in the first aspect when invoking a computer program in a memory.

[0015] In a sixth aspect, an embodiment of the present application provides a communication apparatus, which comprises a processor, and the processor executes the method in the second aspect when invoking a computer program in a memory.

[0016] In a seventh aspect, an embodiment of the present application provides a communication apparatus, which comprises a processor and a memory, and the memory stores a computer program; the processor executes the computer program stored in the memory, so that the communication apparatus executes the method in the first aspect.

[0017] In an eighth aspect, an embodiment of the present application provides a communication apparatus, which comprises a processor and a memory, and the memory stores a computer program; the processor executes the computer program stored in the memory, so that the communication apparatus executes the method in the second aspect.

[0018] In a ninth aspect, an embodiment of the present application provides a communication apparatus, which comprises a processor and an interface circuit, the interface circuit is configured to receive code instructions and transmit the code instructions to the processor, and the processor is configured to run the code instructions so that the apparatus executes the method in the first aspect.

[0019] In a tenth aspect, an embodiment of the present application provides a communication apparatus, which comprises a processor and an interface circuit, the interface circuit is configured to receive code instructions and transmit the code instructions to the processor, and the processor is configured to run the code instructions so that the apparatus executes the method in the second aspect.

[0020] In an eleventh aspect, an embodiment of the present application provides a computer readable storage medium, which is configured to store instructions for the receiving device, and the instructions are configured to make the receiving device execute the method in the first aspect when the instructions are executed.

[0021] In a twelfth aspect, an embodiment of the present application provides a computer readable storage medium, which is configured to store instructions for the sending device, and the instructions are configured to make the sending device execute the method in the second aspect when the instructions are executed. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background art, the drawings needed to be used in the embodiments of the present application or the background art will be described below.

[0023] Figure 1is a schematic diagram of an architecture of a communication system provided by an embodiment of the present application;

[0024] Figure 2 is a schematic diagram of a method for determining an OAM mode provided by an embodiment of the present application;

[0025] Figure 3 is a schematic diagram of a method for determining an OAM mode provided by an embodiment of the present application;

[0026] Figure 4 is a schematic diagram of a method for determining an OAM mode provided by an embodiment of the present application;

[0027] Figure 5 is a schematic diagram of a method for determining an OAM mode provided by an embodiment of the present application;

[0028] Figure 6 is a schematic diagram of a method for determining an OAM mode provided by an embodiment of the present application;

[0029] Figure 7 is a schematic diagram of a method for determining an OAM mode provided by an embodiment of the present application;

[0030] Figure 8 is a schematic diagram of a method for determining an OAM mode provided by an embodiment of the present application;

[0031] Figure 9 is a schematic diagram of a structure of a communication device provided by an embodiment of the present application;

[0032] Figure 10 is a schematic diagram of a structure of a communication device provided by an embodiment of the present application;

[0033] Figure 11 is a schematic diagram of a structure of a chip provided by an embodiment of the present application. DETAILED DESCRIPTION

[0034] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The following description is made with reference to the accompanying drawings in which like reference numerals refer to like elements in the several figures. The following description is made with reference to the accompanying drawings in which like reference numerals refer to like elements in the several figures. The embodiments described in these exemplary embodiments do not represent all of the ways in which the present disclosure can be implemented. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0035] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. The singular forms “a” and “the” as used in this disclosure and the appended claims are also intended to include the 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 and all possible combinations of one or more of the associated listed items.

[0036] It should be understood that although the terms first, second, third, etc., may be used to describe various information in embodiments of this disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first information may also be referred to as second information without departing from the scope of embodiments of this disclosure, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein can be interpreted as "when," "in response to a determination," or "when," or "in the event of a determination."

[0037] For the sake of brevity and ease of understanding, this document uses the terms "greater than" or "less than", "higher than" or "lower than" to describe size relationships. However, it will be understood by those skilled in the art that the term "greater than" also includes the meaning of "greater than or equal to", and "less than" also includes the meaning of "less than or equal to"; the term "higher than" also includes the meaning of "higher than or equal to", and "lower than" also includes the meaning of "lower than or equal to".

[0038] To facilitate understanding, the terminology used in this application will be introduced first.

[0039] 1. Orbital Angular Momentum (OAM)

[0040] OAM stands for Oxide-Oriented Aspect Ratio, which is generated by the rotation of energy flow around the optical axis. It causes the phase wavefront of the electromagnetic wave to form a vortex shape; therefore, electromagnetic waves carrying OAM are also called vortex electromagnetic waves. Currently, there are two main methods for transmitting information using OAM: OAM Shift Keying (OAM-SK) and OAM Multiplexing (OAM-DM). The characteristics of OAM communication are: simple generation and demodulation methods, requiring no complex receiving and demodulation algorithms; different OAM beams are orthogonal to each other, theoretically possessing an infinite number of modes and extremely high spectral efficiency.

[0041] To better understand the method for determining OAM modes disclosed in the embodiments of this application, the communication system to which the embodiments of this application are applicable will be described first.

[0042] The communication system provided by the embodiments of the present application can include but is not limited to one sending device and one receiving device. Optionally, the sending device can be a network device, and the receiving device can be a terminal device.

[0043] Please refer to Figure 1 , Figure 1 The architecture schematic diagram of the communication system provided by the embodiments of the present application is shown in FIG. 1. The communication system can include but is not limited to one network device and one terminal device, Figure 1 The number and form of the devices shown in the figure are only for example and do not constitute a limitation on the embodiments of the present application. In actual applications, two or more network devices and two or more terminal devices can be included. Figure 1 The communication system shown in the figure takes one network device 11 and one terminal device 12 as an example.

[0044] It should be noted that the technical solutions of the embodiments of the present application can be applied to various communication systems. For example: long term evolution (LTE) system, 5th generation (5G) mobile communication system, 5G new radio (NR) system, or other future new mobile communication systems, etc.

[0045] The network device 11 in the embodiments of the present application is an entity for transmitting or receiving signals on the network side. For example, the network device 11 can be an evolved NodeB (eNB), a transmission reception point (TRP), a next generation NodeB (gNB) in the NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network device. The network device provided by the embodiments of the present application can be composed of a central unit (CU) and a distributed unit (DU), wherein the CU can also be referred to as a control unit. The CU-DU structure can split the protocol layer of the network device, for example, the base station, and place part of the protocol layer functions in the CU for centralized control, and the remaining part or all of the protocol layer functions are distributed in the DU and controlled by the CU.

[0046] The terminal device 12 in the embodiments of the present application is an entity for receiving or transmitting signals on the user side, such as a mobile phone. The terminal device can also be referred to as a terminal, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc. The terminal device can be a car, a smart car, a mobile phone, an Internet of Things device such as NB-IoT or (e)MTC, 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, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, a wireless terminal device in smart home, etc. The embodiments of the present application do not limit the specific technology and specific device form of the terminal device.

[0047] It can be understood that the communication system described in the embodiments of the present application is for more clearly illustrating the technical solutions of the embodiments of the present application, and does not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that, with the evolution of system architecture and the appearance of new business scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0048] The method for determining an OAM mode and the device thereof provided by the present application will be described in detail below in combination with the accompanying drawings.

[0049] Please refer to Figure 2 , Figure 2 is a flowchart of a method for determining an OAM mode provided by the embodiments of the present application. As Figure 2 shown, the method is executed by a sending device and can include but not limited to the following steps:

[0050] Step S21, sending a measurement reference signal corresponding to a candidate OAM mode to a receiving device.

[0051] In the embodiments of the present application, the sending device can be a network device, and the receiving device can be a terminal device or a relay device.

[0052] OAM has many OAM modes, such as Figure 3 As shown. Wherein the OAM mode l=0 is a plane wave, and for the case of l≠0, the vortex electromagnetic waves of different mode values are orthogonal to each other, and through the multiplexing of modes, multiple coaxial data streams can be transmitted without relying on traditional resources such as time and frequency, providing a new multiplexing dimension for wireless transmission, thereby improving the spectral efficiency.

[0053] The sending device and the receiving device can support transmission in multiple OAM modes, so the OAM modes supported by the sending device and the receiving device can be used as candidate OAM modes, and the most suitable target OAM mode can be selected from the candidate OAM modes, and transmission is performed between the target OAM mode and the receiving device. In an embodiment of the present application, one candidate OAM mode corresponds to one measurement reference signal, and the measurement reference signal corresponding to the candidate OAM mode is sent to the receiving device to judge the corresponding candidate OAM mode according to the received measurement reference signal.

[0054] The measurement reference signal is a known signal provided by the sending device to the receiving device for channel estimation or channel sounding. By obtaining the signal quality of the received measurement reference signal and comparing it with the original signal quality, the size of the interference suffered by the signal during transmission can be determined, and the channel quality under the current state can be determined.

[0055] Step S22, receiving the measurement result of at least one measurement reference signal sent by the receiving device.

[0056] Optionally, the receiving device is controlled to monitor the signal sent by the sending device, or in response to the receiving device obtaining the time-frequency position occupied by the measurement reference signal, the receiving device is controlled to monitor the signal sent by the sending device at the time-frequency position. In response to the receiving device receiving the measurement reference signal, the measurement reference signal is processed to obtain the corresponding measurement result.

[0057] In some implementations, the receiving device sends the measurement result of each measurement reference signal to the sending device, and correspondingly, the sending device receives the measurement result obtained by the receiving device according to any measurement reference signal.

[0058] In another implementation, the receiving device filters the measurement results based on the measurement values in the measurement results, and sends the measurement results that meet the conditions to the sending device, and correspondingly, the sending device receives the measurement results obtained by the receiving device from at least one reference signal.

[0059] It should be noted that the measurement result of the measurement reference signal includes not only the measurement value of the measurement quantity, but also the mapping relationship between the measurement result and the measurement reference signal. In some implementations, the mapping relationship between the measurement result sent by the receiving device and the measurement reference signal is received. In other implementations, the mapping relationship between the measurement result sent by the receiving device and the candidate OAM mode is received. In yet other implementations, the identifier of the measurement reference signal sent by the receiving device is received, which is used to indicate the measurement reference signal or the candidate OAM mode corresponding to the measurement result.

[0060] In step S23, the target OAM mode is determined from the candidate OAM modes based on the measurement result, and is indicated to the receiving device.

[0061] Based on the measurement value in the measurement result, the optimal measurement result can be obtained. Based on the identifier or the mapping relationship in the measurement result, the target OAM mode corresponding to the optimal measurement result can be obtained. Optionally, the target OAM mode can be indicated to the receiving device in an explicit or implicit manner through control signaling, so that the sending device can perform transmission with the receiving device based on the target OAM mode. The control signaling can be Radio Resource Control (RRC) signaling, Media Access Control Control Element (MAC CE) signaling, or Downlink Control Information (DCI) signaling.

[0062] In some implementations, in response to the presence of a single receiving device, the target OAM mode can be determined directly based on the measurement result.

[0063] In other implementations, in response to the presence of multiple receiving devices, the target OAM mode needs to be determined based on the measurement result, while considering the maximum system multi-user capacity and the interference factor.

[0064] The embodiments of the present application provide a method for determining an OAM mode. By sending a measurement reference signal corresponding to a candidate OAM mode, the receiving device can measure the measurement reference signal, obtain a measurement result, and then judge the interference degree of the signal on the candidate OAM mode based on the measurement result, so as to determine the most suitable target OAM mode, thereby reducing the interference between modes and improving the system capacity.

[0065] Please refer to Figure 4 , Figure 4 is a flowchart of a method for determining an OAM mode provided by the embodiments of the present application. As Figure 4 shown, the method is executed by a sending device, and can include but is not limited to the following steps:

[0066] Step S41, sending the measurement reference signal corresponding to the candidate OAM mode to the receiving device.

[0067] In the embodiments of the present application, the sending device can be a network device, and the receiving device can be a terminal device or a relay device.

[0068] Step S42, receiving the measurement result of the at least one measurement reference signal sent by the receiving device.

[0069] Step S43, determining the target OAM mode from the candidate OAM modes based on the measurement result, and indicating to the receiving device.

[0070] For specific implementation modes of steps S41-S43, refer to the related content described in the embodiments of the present application, which will not be repeated here.

[0071] Step S44, transmitting based on the target OAM mode and the receiving device.

[0072] The sending device and the receiving device can perform data or signal transmission based on the determined target OAM mode. Optionally, the sending device determines a first time-frequency position to be occupied when transmitting from a resource pool, determines a corresponding Demodulation Reference Signal (DMRS) antenna port based on the target OAM mode, and transmits with the receiving device on the antenna port using the first time-frequency position.

[0073] The first time-frequency position is an idle time-frequency position selected by the sending device from the resource pool. After determining the target OAM mode, the sending device obtains the first time-frequency position and configures it for the target OAM mode. It should be noted that after determining the first time-frequency position to be occupied when transmitting from the resource pool, the sending device needs to indicate the first time-frequency position to the receiving device, so that the receiving device determines to transmit with the sending device at the first time-frequency position.

[0074] The OAM mode and the DMRS antenna port have a corresponding relationship. Optionally, one OAM mode can correspond to one antenna port, so the sending device can determine the antenna port used for transmission with the receiving device based on the target OAM mode. Correspondingly, the receiving device can also determine the antenna port used for transmission with the sending device based on the target OAM mode. In some implementations, the sending device implicitly indicates the target OAM mode to the receiving device using the antenna port corresponding to the target OAM, in which case the receiving device can directly determine the OAM mode used for transmission with the sending device.

[0075] The embodiment of the present application provides a kind of OAM mode determination method, by target OAM mode determination sending device and receiving device transmission is used Antenna port, and from resource pool, it is determined that the first time-frequency position used in transmission, and then realize sending device and receiving device transmission based on target OAM mode.

[0076] Please see Figure 5 , Figure 5 It is a kind of OAM mode determination method flow diagram provided by the embodiment of the present application.As shown in Figure 5 The method is executed by sending device, can include but not limited to the following steps:

[0077] Step S51, determines the measurement reference signal corresponding to candidate OAM mode.

[0078] The OAM mode supported by sending device and receiving device is used as candidate OAM mode, and a measurement reference signal is configured for each candidate OAM mode, and optionally, the same measurement reference signal can be configured for each candidate OAM mode, so that sending device compares and judges according to measurement result.It needs to be explained that the measurement reference signal configured needs not to lose generality, i.e.the measurement reference signal needs to represent general situation, rather than a special case.

[0079] Step S52, the configuration information of measurement reference signal is sent to receiving device.

[0080] Sending device informs receiving device of the configuration information of measurement reference signal through control signaling, and optionally, control signaling can be RRC signaling, MAC CE signaling or DCI signaling.

[0081] The configuration information of measurement reference signal includes at least one of the following information:

[0082] Mapping relationship between candidate OAM mode and measurement reference signal;

[0083] The identifier of measurement reference signal;Wherein, the identifier of measurement reference signal is used to indicate the corresponding relationship between candidate OAM mode and measurement reference signal, or the corresponding relationship between measurement reference signal and measurement result;

[0084] Second time-frequency position occupied by measurement reference signal;Optionally, sending device sends measurement reference signal to receiving device on the second time-frequency position, and correspondingly, receiving device receives the measurement reference signal sent by sending device on the second time-frequency position.

[0085] Step S53, measurement configuration information is sent to receiving device.

[0086] The sending device informs the receiving device of the measurement configuration information through control signaling, which can be RRC signaling, MAC CE signaling or DCI signaling.

[0087] The measurement configuration information includes at least one of the following information:

[0088] The measurement quantity of the measurement reference signal;

[0089] The reporting mode of the measurement quantity;

[0090] The reporting condition that the measurement quantity needs to meet.

[0091] Optionally, the measurement quantity of the measurement reference signal includes signal to interference plus noise ratio (SINR), reference signal receiving power (RSRP), reference signal receiving quality (RSRQ) and received signal strength indicator (RSSI).

[0092] Optionally, the reporting mode of the measurement quantity includes periodic reporting and aperiodic reporting. In response to adopting periodic reporting, the measurement value is reported at a periodic time period. The reporting period T can be configured by the base station or pre-agreed by the protocol. In response to adopting aperiodic reporting, the measurement value is reported at a specified time according to the indication signaling of the network.

[0093] Optionally, the reporting condition that the measurement quantity needs to meet can be configured by the network or pre-agreed measurement quantity threshold, and the measurement quantity higher or lower than the threshold is selected for reporting. Optionally, the network can also specify the measurement quantity to be reported.

[0094] It should be noted that the reporting mode of the measurement quantity and the reporting condition that the measurement quantity needs to meet in the measurement configuration information can be informed to the receiving device based on the downlink scheduling of the sending device, for example, through the physical downlink control channel (PDCCH) to inform the receiving device, or can be determined based on the protocol agreement.

[0095] Step S54, sending the measurement reference signal corresponding to the candidate OAM mode to the receiving device.

[0096] At the determined second time-frequency position, the measurement reference signal corresponding to the candidate OAM mode is sent to the receiving device.

[0097] Step S55, receiving the measurement result of the at least one measurement reference signal sent by the receiving device.

[0098] The receiving device monitors the signal sent by the sending device at the second time-frequency location. In response to the receiving device receiving the measurement reference signal, the measurement reference signal is processed to obtain the corresponding measurement result, and the measurement result is periodically or non-periodically reported according to the reporting mode of the measurement quantity in the measurement configuration information. Correspondingly, the sending device periodically receives the measurement result or receives the measurement result at a specified time.

[0099] Optionally, the measurement result includes at least one of the following information:

[0100] The measurement value of the first measurement quantity of the at least one measurement reference signal;

[0101] The identifier of the measurement reference signal corresponding to the first measurement quantity.

[0102] Optionally, the first measurement quantity can be one or more of the measurement quantities of SINR, RSRP, RSRQ and RSSI.

[0103] Optionally, the identifier of the measurement reference signal corresponding to the first measurement quantity is used to indicate the corresponding relationship between the candidate OAM mode and the measurement reference signal, or the corresponding relationship between the measurement reference signal and the measurement result.

[0104] The receiving device processes the measurement reference signal in multiple dimensions based on the measurement quantity of the measurement reference signal in the measurement configuration information. For example, if the measurement quantity includes SINR, RSRP, RSRQ and RSSI, the receiving device needs to obtain the SINR, RSRP, RSRQ and RSSI of the measurement reference signal.

[0105] In some implementations, the reporting condition is a specified measurement quantity, so the measurement result only needs to include the specified measurement quantity. For example, the measurement configuration information indicates that the measurement of SINR, RSRP, RSRQ and RSSI is required, but only SINR, RSRP and RSRQ need to be reported at present, so the SINR, RSRP and RSRQ of the measurement reference signal are reported to the sending device.

[0106] In other implementations, the reporting condition is a pre-agreed measurement quantity threshold. For example, the threshold of SINR is 5 according to the measurement configuration information, and the measurement result of SINR exceeding 5 is reported to the sending device

[0107] Step S56, determining the target OAM mode from the candidate OAM mode based on the measurement result, and indicating to the receiving device.

[0108] Based on the measurement value in the measurement result, the optimal measurement result can be obtained. Based on the identification of the measurement reference signal in the measurement result, the target OAM mode corresponding to the optimal measurement result can be obtained.

[0109] In some implementations, in response to the existence of a single receiving device, the target OAM mode can be determined based on the measurement result directly.

[0110] In some other implementations, in response to the existence of multiple receiving devices, the target OAM mode needs to be determined based on the measurement result, while considering the system multi-user capacity maximization and interference factors.

[0111] The sending device can notify the receiving device of the target OAM mode through control signaling, where the control signaling can be RRC signaling, MAC CE signaling or DCI signaling.

[0112] Optionally, the target OAM mode is explicitly indicated to the receiving device through signaling. For example, the index of the target OAM mode is carried in the signaling.

[0113] Optionally, since the OAM mode has a corresponding relationship with the DMRS antenna port, the target OAM mode can also be implicitly indicated to the receiving device through the DMRS port number corresponding to the target OAM mode.

[0114] Step S57, transmission is performed between the target OAM mode and the receiving device.

[0115] For specific implementation modes of step S57, please refer to the relevant content described in the embodiments of the present application, which will not be described here.

[0116] The embodiments of the present application provide a method for determining an OAM mode. By sending configuration information of a measurement reference signal to a receiving device, the receiving device can receive the measurement reference signal at a configured second time-frequency position. By sending measurement configuration information to the receiving device, the receiving device can obtain the measurement quantity required by the sending device, and report according to the reporting mode and reporting condition, so that the sending device determines the most suitable target OAM mode, thereby reducing the interference between modes and improving the system capacity.

[0117] Please refer to Figure 6 , Figure 6 is a flowchart of a method for determining an OAM mode provided by the embodiments of the present application. As Figure 6 shown, the method is executed by a receiving device, and can include but is not limited to the following steps:

[0118] Step S61, receiving the measurement reference signal corresponding to the candidate OAM mode sent by the sending device.

[0119] In the embodiments of the present application, the sending device can be a network device, and the receiving device can be a terminal device or a relay device.

[0120] The sending device and the receiving device can support transmission in multiple OAM modes, and therefore, the OAM modes supported by the sending device and the receiving device can be used as candidate OAM modes, and the most suitable target OAM mode can be selected from the candidate OAM modes, and transmission is performed between the target OAM mode and the receiving device. In the embodiments of the present application, one candidate OAM mode corresponds to one measurement reference signal, and the receiving device receives the measurement reference signal corresponding to the candidate OAM mode sent by the sending device.

[0121] Optionally, the receiving device monitors the signal sent by the sending device, or in response to the receiving device obtaining the time-frequency position occupied by the measurement reference signal, the receiving device monitors the signal sent by the sending device at the time-frequency position to receive the measurement reference signal corresponding to the candidate OAM mode sent by the sending device.

[0122] For specific descriptions of the OAM mode and the measurement reference signal, refer to the related content in the embodiments of the present application, which will not be described here.

[0123] Step S62: sending, to the sending device, the measurement result of at least one measurement reference signal.

[0124] In response to the receiving device receiving the measurement reference signal, the receiving device performs signal processing on the measurement reference signal, obtains the corresponding measurement result, and sends the measurement result to the sending device.

[0125] In some implementations, the receiving device sends the measurement result of each measurement reference signal to the sending device.

[0126] In other implementations, the receiving device filters the measurement results based on the measurement values in the measurement results, and sends the measurement results meeting the conditions to the sending device.

[0127] It should be noted that the measurement result of the measurement reference signal not only includes the measurement value of the measurement quantity, but also includes the mapping relationship between the measurement result and the measurement reference signal. In some implementations, the mapping relationship between the measurement result and the measurement reference signal is sent to the sending device. In other implementations, the mapping relationship between the measurement result and the candidate OAM mode is sent to the sending device. In yet other implementations, the identifier of the measurement reference signal is sent to the sending device, and the identifier is used to indicate the measurement reference signal or the candidate OAM mode corresponding to the measurement result.

[0128] Step S63: determining the target OAM mode from the candidate OAM modes based on the indication of the sending device.

[0129] The sending device can determine the target OAM mode from the candidate OAM modes based on the measurement result, and indicate the target OAM mode to the receiving device through control signaling. Correspondingly, the receiving device can determine the target OAM mode from the candidate OAM modes based on the indication of the sending device.

[0130] In some implementations, the sending device explicitly indicates the target OAM mode to the receiving device, and the receiving device can directly obtain the target OAM mode.

[0131] In some other implementations, the sending device implicitly indicates the target OAM mode to the receiving device, for example, by indicating the target OAM mode through the DMRS antenna port, and the receiving device needs to obtain the target OAM mode based on the DMRS antenna port.

[0132] Embodiments of the present application provide a method for determining an OAM mode, by receiving a measurement reference signal corresponding to a candidate OAM mode, measuring the measurement reference signal to obtain a measurement result, and then enabling the sending device to judge the interference degree of the signal on the candidate OAM mode based on the measurement result, to determine the most suitable target OAM mode, thereby reducing the interference between modes and improving the system capacity.

[0133] Please refer to Figure 7 , Figure 7 is a flowchart of a method for determining an OAM mode provided by an embodiment of the present application. As Figure 7 shown, the method is performed by a receiving device and can include but is not limited to the following steps:

[0134] Step S71, receiving a measurement reference signal corresponding to a candidate OAM mode sent by a sending device.

[0135] Step S72, sending a measurement result of at least one measurement reference signal to the sending device.

[0136] Step S73, determining a target OAM mode from the candidate OAM modes based on the indication of the sending device.

[0137] For specific implementation modes of steps S71-S73, please refer to the relevant content described in the embodiments of the present application, which will not be repeated here.

[0138] Step S74, performing transmission with the sending device based on the target OAM mode.

[0139] The sending device and the receiving device can perform data or signal transmission based on the determined target OAM mode. Optionally, a first time-frequency location to be occupied for transmission is determined from a resource pool, a corresponding demodulation reference signal (DMRS) antenna port is determined based on the target OAM mode, and transmission is performed with the sending device on the antenna port using the first time-frequency location.

[0140] The first time-frequency position is an idle time-frequency position selected by the sending device from the resource pool. After determining the target OAM mode, the sending device obtains the first time-frequency position and configures it for use by the target OAM mode. It should be noted that after determining the first time-frequency position to be occupied by the transmission, the sending device indicates the first time-frequency position to the receiving device. Correspondingly, the receiving device receives the time-frequency position indication information sent by the sending device and determines the first time-frequency position from the resource pool based on the time-frequency position indication information.

[0141] The OAM mode has a corresponding relationship with the DMRS antenna port. Optionally, one OAM mode can correspond to one antenna port, so that the sending device and the receiving device can determine the antenna port used by the receiving device for transmission based on the target OAM mode. In some implementations, the sending device implicitly indicates the target OAM mode to the receiving device by using the antenna port corresponding to the target OAM. In this case, the receiving device can directly determine the OAM mode used by the sending device for transmission.

[0142] The embodiments of the present application provide a method for determining an OAM mode, which determines the antenna port used by the sending device and the receiving device for transmission based on the target OAM mode, and determines the first time-frequency position used for transmission from the resource pool, thereby realizing the transmission of the sending device and the receiving device based on the target OAM mode.

[0143] Please refer to Figure 8 , Figure 8 is a flowchart of a method for determining an OAM mode provided by the embodiments of the present application. As Figure 8 shown, the method is executed by the receiving device and can include but is not limited to the following steps:

[0144] Step S81, receiving the configuration information of the measurement reference signal sent by the sending device.

[0145] The sending device configures a measurement reference signal for each candidate OAM mode, wherein the measurement reference signal is a known signal, and sends the configuration information of the measurement reference signal to the receiving device through control signaling. Correspondingly, the receiving device receives the configuration information and processes the measurement reference signal based on the configuration information.

[0146] The configuration information of the measurement reference signal includes at least one of the following information:

[0147] The mapping relationship between the candidate OAM mode and the measurement reference signal;

[0148] The identifier of the measurement reference signal;

[0149] The second time-frequency position occupied by the measurement reference signal.

[0150] Details of the configuration information can be found in the relevant content of the embodiments of the present application, which will not be repeated here.

[0151] Step S82, receiving the measurement configuration information sent by the sending device.

[0152] The sending device sends the measurement configuration information to the receiving device through control signaling. Correspondingly, the receiving device receives the measurement configuration information and measures and reports the measurement reference signal based on the measurement configuration information.

[0153] The measurement configuration information includes at least one of the following information:

[0154] The measurement quantity of the measurement reference signal;

[0155] The reporting mode of the measurement quantity;

[0156] The reporting condition that the measurement quantity needs to meet.

[0157] Details of the measurement configuration information can be found in the relevant content of the embodiments of the present application, which will not be repeated here.

[0158] Optionally, the reporting mode of the measurement quantity and the reporting condition that the measurement quantity needs to meet in the measurement configuration information can be obtained based on the downlink scheduling of the sending device, for example, obtained through PDCCH. It can also be determined based on the protocol agreed mode.

[0159] Step 83, receiving the measurement reference signal corresponding to the candidate OAM mode sent by the sending device.

[0160] In the determined second time-frequency position, the signal sent by the sending device is monitored to receive the measurement reference signal corresponding to the candidate OAM mode sent by the sending device.

[0161] Step S84, sending the measurement result of at least one measurement reference signal to the sending device.

[0162] In response to receiving the measurement reference signal, the measurement reference signal is processed, the measurement result is obtained based on the measurement quantity indicated in the measurement configuration information, and the measurement result is periodically or non-periodically reported according to the reporting mode of the measurement quantity in the measurement configuration information.

[0163] Optionally, the receiving device selects a first measurement quantity that meets the reporting condition from the measurement quantity of the measurement reference signal, and sends the measurement value of the first measurement quantity and the identifier of the measurement reference signal corresponding to the first measurement quantity to the sending device as the measurement result.

[0164] In some implementations, the reporting condition is a specified measurement quantity, and the measurement result only includes the specified measurement quantity. For example, the measurement configuration information indicates that SINR, RSRP, RSRQ and RSSI need to be measured, but currently only SINR, RSRP and RSRQ need to be reported, and the SINR, RSRP and RSRQ of the measurement reference signal are reported to the sending device.

[0165] In some other implementations, the reporting condition is a pre-agreed measurement quantity threshold. For example, the measurement configuration information indicates that the threshold of SINR is 5, and the measurement result of SINR exceeding 5 is reported to the sending device

[0166] In step S85, the target OAM mode is determined from the candidate OAM modes based on the indication of the sending device.

[0167] The sending device can determine the target OAM mode from the candidate OAM modes based on the measurement result and indicate it to the receiving device. Accordingly, the receiving device can determine the target OAM mode from the candidate OAM modes based on the indication of the sending device. For specific implementation of the sending device determining the target OAM mode, please refer to the relevant content in the embodiments of the present application, which will not be repeated here.

[0168] In some implementations, the receiving device receives the signaling sent by the sending device, wherein the signaling carries the index of the target OAM mode, and the target OAM mode can be determined based on the index.

[0169] In some other implementations, the receiving device receives the DMRS port number sent by the sending device and determines the target OAM mode based on the DMRS port number. It should be noted that the DMRS antenna port has a corresponding relationship with the OAM mode, and therefore the target OAM mode can be determined based on the DMRS port number.

[0170] In step S86, the transmission is performed based on the target OAM mode and the sending device.

[0171] For specific implementation of step S86, please refer to the relevant content in the embodiments of the present application, which will not be repeated here.

[0172] The embodiments of the present application provide a method for determining an OAM mode. By receiving the configuration information of the measurement reference signal, the measurement reference signal can be received and processed based on the configuration information. By receiving the measurement configuration information, the measurement reference signal can be measured and reported based on the measurement configuration information, so that the sending device determines the most suitable target OAM mode, thereby reducing the interference between modes and improving the system capacity.

[0173] In the embodiments of the present application, the method provided by the embodiments of the present application is introduced from the perspective of the sending device and the receiving device. In order to realize the functions of the method provided by the embodiments of the present application, the sending device and the receiving device can include hardware structures and software modules, and realize the above functions in the form of hardware structures, software modules, or hardware structures and software modules. Some of the above functions can be executed in the form of hardware structures, software modules, or hardware structures and software modules.

[0174] Please refer to Figure 9 A structural schematic diagram of a communication apparatus 90 provided by the embodiments of the present application is shown. Figure 9 The communication apparatus 90 shown includes a transceiver module 91 and a processing module 92. The transceiver module 91 can include a sending module and / or a receiving module, the sending module is used to realize the sending function, and the receiving module is used to realize the receiving function. The transceiver module 91 can realize the sending function and / or the receiving function.

[0175] The communication apparatus 90 can be a sending device, or an apparatus in the sending device, or an apparatus that can be used with the sending device. Alternatively, the communication apparatus 90 can be a receiving device, or an apparatus in the receiving device, or an apparatus that can be used with the receiving device.

[0176] The communication apparatus 90 is a sending device, which includes:

[0177] The transceiver module 91 is configured to send a measurement reference signal corresponding to a candidate OAM mode to a receiving device, receive a measurement result of at least one measurement reference signal sent by the receiving device, and determine a target OAM mode from the candidate OAM mode based on the measurement result and indicate the target OAM mode to the receiving device.

[0178] Optionally, the communication apparatus 90 further includes a processing module 92, configured to perform transmission with the receiving device based on the target OAM mode.

[0179] Optionally, the processing module 92 is further configured to determine a first time-frequency position to be occupied during transmission from a resource pool, determine a corresponding demodulation reference signal (DMRS) antenna port based on the target OAM mode, and perform transmission with the receiving device on the antenna port using the first time-frequency position.

[0180] Optionally, the transceiver module 91 is further configured to indicate the first time-frequency position to the receiving device.

[0181] Optionally, the transceiver module 91 is further configured to determine a measurement reference signal corresponding to the candidate OAM mode, and send configuration information of the measurement reference signal to the receiving device.

[0182] Optionally, the configuration information of the measurement reference signal comprises at least one of the following: a mapping relationship between the candidate OAM mode and the measurement reference signal; an identifier of the measurement reference signal; a second time-frequency location occupied by the measurement reference signal.

[0183] Optionally, the transceiver 91 is further configured to send the measurement configuration information to the receiving device.

[0184] Optionally, the measurement configuration information comprises at least one of the following: a measurement quantity of the measurement reference signal; a reporting manner of the measurement quantity; a reporting condition required to be met by the measurement quantity.

[0185] Optionally, the measurement result comprises at least one of the following: a measurement value of a first measurement quantity of at least one measurement reference signal; an identifier of the measurement reference signal corresponding to the first measurement quantity.

[0186] Optionally, the transceiver 91 is further configured to explicitly indicate the target OAM mode to the receiving device through signaling, or implicitly indicate the target OAM mode to the receiving device through a DMRS port number corresponding to the target OAM mode.

[0187] The communication apparatus 90 is a receiving device, comprising:

[0188] The transceiver 91 is configured to receive a measurement reference signal corresponding to a candidate OAM mode sent by a sending device; send a measurement result of at least one measurement reference signal to the sending device; and determine a target OAM mode from the candidate OAM modes based on an indication of the sending device.

[0189] Optionally, the communication apparatus 90 further comprises a processing module 92 configured to perform transmission with the sending device based on the target OAM mode.

[0190] Optionally, the processing module 92 is further configured to determine a first time-frequency location to be occupied during transmission from a resource pool; determine a corresponding demodulation reference signal (DMRS) antenna port based on the target OAM mode; and perform transmission with the sending device on the antenna port using the first time-frequency location.

[0191] Optionally, the transceiver 91 is further configured to receive time-frequency location indication information sent by the sending device; and determine the first time-frequency location from the resource pool based on the time-frequency location indication information.

[0192] Optionally, the transceiver 91 is further configured to receive configuration information of the measurement reference signal sent by the sending device.

[0193] Optionally, the configuration information of the measurement reference signal comprises at least one of the following: a mapping relationship between the candidate OAM mode and the measurement reference signal; an identifier of the measurement reference signal; a second time-frequency location occupied by the measurement reference signal.

[0194] Optionally, the transceiver 91 is further configured to receive the measurement configuration information sent by the sending device.

[0195] Optionally, the measurement configuration information comprises at least one of the following: a measurement quantity of the measurement reference signal; a reporting manner of the measurement quantity; a reporting condition required to be met by the measurement quantity.

[0196] Optionally, the transceiver 91 is further configured to: select a first measurement quantity satisfying the reporting condition from the measurement quantity of the measurement reference signal; send, to the sending device, the measurement result comprising the measurement value of the first measurement quantity and the identifier of the measurement reference signal corresponding to the first measurement quantity.

[0197] Optionally, the transceiver 91 is further configured to: receive signaling sent by the sending device, wherein the signaling carries an index of the target OAM mode; or receive a DMRS port number sent by the sending device, and determine the target OAM mode based on the DMRS port number.

[0198] See Figure 10 , Figure 10 is another structural schematic diagram of a communication apparatus 100 provided by the embodiments of the present application. The communication apparatus 100 can be a sending device, a receiving device, a chip, a chip system, or a processor supporting a terminal device to implement the above method, or a chip, a chip system, or a processor supporting a network device to implement the above method. The apparatus can be used to implement the method described in the above method embodiments, and specific implementation can be referred to the description in the above method embodiments.

[0199] The communication apparatus 100 can include one or more processors 101. The processor 101 can be a general-purpose processor or a special-purpose processor. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication apparatus (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a computer program, and process data of the computer program.

[0200] Optionally, the communication apparatus 100 can further include one or more memories 102, which can store a computer program 104. The processor 101 executes the computer program 104, so that the communication apparatus 100 performs the method described in the above method embodiments. Optionally, the memory 102 can also store data. The communication apparatus 100 and the memory 102 can be separately arranged or integrated together.

[0201] Optionally, the communication apparatus 100 can further comprise a transceiver 105, an antenna 106. The transceiver 105 can be referred to as a transceiving unit, a transceiver, or a transceiving circuit, etc., and is configured to implement the functions of receiving and transmitting. The transceiver 105 can comprise a receiver and a transmitter. The receiver can be referred to as a receiver, a receiving circuit, etc., and is configured to implement the function of receiving. The transmitter can be referred to as a transmitter, a transmitting circuit, etc., and is configured to implement the function of transmitting.

[0202] Optionally, the communication apparatus 100 can further comprise one or more interface circuits 107. The interface circuit 107 is configured to receive code instructions and transmit the code instructions to the processor 101. The processor 101 executes the code instructions to enable the communication apparatus 100 to perform the methods described in the above method embodiments.

[0203] In an implementation manner, the processor 101 can comprise a transceiver configured to implement the functions of receiving and transmitting. For example, the transceiver can be a transceiving circuit, or an interface, or an interface circuit. The transceiving circuit, the interface, or the interface circuit configured to implement the functions of receiving and transmitting can be separate or integrated together. The transceiving circuit, the interface, or the interface circuit can be configured to read and write code / data, or the transceiving circuit, the interface, or the interface circuit can be configured to transmit or transfer signals.

[0204] In an implementation manner, the processor 101 can store a computer program 103. The computer program 103 is configured to run on the processor 101, and enable the communication apparatus 100 to perform the methods described in the above method embodiments. The computer program 103 can be fixed in the processor 101. In this case, the processor 101 can be implemented by hardware.

[0205] In an implementation, the communication apparatus 100 can include circuitry that can implement the functions of transmitting or receiving or communicating in the foregoing method embodiments. The processor and transceiver described in the present 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 (NMOS), positive channel metal oxide semiconductor (PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0206] The communication apparatus described in the above embodiments can be a terminal device or a network device, but the scope of the communication apparatus described in the present application is not limited thereto, and the structure of the communication apparatus can not be limited by Figure 10 The communication apparatus can be a standalone device or can be part of a larger device. For example, the communication apparatus can be:

[0207] (1) a standalone integrated circuit (IC), or a chip, or a chip system or subsystem;

[0208] (2) a set of one or more ICs, optionally including memory elements for storing data and computer program instructions;

[0209] (3) an ASIC, such as a Modem;

[0210] (4) a module that can be embedded within other devices;

[0211] (5) a receiver, a terminal device, a smart terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a car device, a network device, a cloud device, an artificial intelligence device, etc.

[0212] (6) other, etc.

[0213] For the case that the communication apparatus can be a chip or a chip system, refer to Figure 11 a structural diagram of the chip. Figure 11 The chip shown in the figure includes a processor 111 and an interface 112. Among them, the number of processors 111 can be one or more, and the number of interfaces 112 can be multiple.

[0214] Optionally, the chip further includes a memory 113, which is used to store necessary computer programs and data.

[0215] Those skilled in the art can also understand 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 the two. Whether the function is implemented by hardware or software depends on the specific application and design requirements of the whole system. Those skilled in the art can use various methods to implement the functions for each specific application, but such implementation should not be understood as beyond the scope of protection of the embodiments of the present application.

[0216] The embodiments of the present application also provide a system for determining the OAM mode, which includes the foregoing Figure 9 communication apparatus as a terminal device and the communication apparatus as a network device in the embodiments, or the system includes the foregoing Figure 10 communication apparatus as a terminal device and the communication apparatus as a network device in the embodiments.

[0217] The present application also provides a readable storage medium having instructions stored thereon, which, when executed by a computer, implement the functions of any of the above method embodiments.

[0218] The present application also provides a computer program product, which, when executed by a computer, implements the functions of any of the above method embodiments.

[0219] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer programs. When the computer programs are loaded on a computer and executed, all or part of the processes or functions described in the embodiments of the present application are generated. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer programs can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer programs can be transferred from one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode. 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, data center, etc. integrated with one or more available media. The available media can be magnetic media (such as floppy disk, hard disk, magnetic tape), optical media (such as high-density digital video disc (digital video disc, DVD)), or semiconductor media (such as solid state disk (solid state disk, SSD)) and the like.

[0220] Those skilled in the art can understand that the first, second, etc. various numerical designations involved in the present application are only for the convenience of description, and do not limit the scope of the embodiments of the present application, nor indicate the order.

[0221] At least one of the present application can also be described as one or more, and the plurality can be two, three, four or more, which is not limited in the present application. In the embodiments of the present application, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D". There is no order or size order between the technical features described by "first", "second", "third", "A", "B", "C" and "D".

[0222] The correspondence relationship shown in each table in the present application can be configured or predefined. The values of the information in each table are merely examples, and other values can be configured, and the present application is not limited thereto. When configuring the correspondence relationship of the information and each parameter, it is not necessarily required to configure all the correspondence relationships shown in each table. For example, the correspondence relationship shown in some rows in the table in the present application can also not be configured. For another example, the above tables can be appropriately deformed, for example, split, merged, and the like. The names of the parameters shown in the titles of the above tables can also use other names understandable by the communication device, and the values or representation manners of the parameters can also use other values or representation manners understandable by the communication device. The above tables can also use other data structures when implemented, for example, an array, a queue, a container, a stack, a linear table, a pointer, a linked list, a tree, a graph, a structure, a class, a heap, a hash table, or the like.

[0223] The predefinition in the present application can be understood as defining, predefining, storing, pre-storing, pre-negotiating, pre-configuring, solidifying, or pre-burning.

[0224] Those skilled in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0225] Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working processes of the above-described system, device, and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be described here.

[0226] The above is merely a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for determining an orbital angular momentum (OAM) mode, characterized in that, The method is performed by a sending device, and the method comprises: sending, to a receiving device, a measurement reference signal corresponding to a candidate OAM mode; receiving a measurement result of at least one measurement reference signal sent by the receiving device; determining a target OAM mode from the candidate OAM modes based on the measurement result and indicating the target OAM mode to the receiving device; the manner in which the target OAM mode is indicated to the receiving device comprises: implicitly indicating the target OAM mode to the receiving device through a DMRS port number corresponding to the target OAM mode.

2. The method of claim 1, wherein, After the target OAM mode is determined from the candidate OAM modes based on the measurement result and indicated to the receiving device, the method further comprises: transmitting with the receiving device based on the target OAM mode.

3. The method of claim 2, wherein, The transmitting with the receiving device based on the target OAM mode comprises: determining a first time-frequency location to be occupied when transmitting from a resource pool; determining a corresponding demodulation reference signal (DMRS) antenna port based on the target OAM mode; transmitting with the receiving device on the antenna port using the first time-frequency location.

4. The method of claim 3, wherein, After the first time-frequency location is determined from the resource pool when transmitting, the method further comprises: indicating the first time-frequency location to the receiving device.

5. The method of claim 1, wherein, Before the measurement reference signal corresponding to the candidate OAM mode is sent to the receiving device, the method further comprises: determining the measurement reference signal corresponding to the candidate OAM mode; sending configuration information of the measurement reference signal to the receiving device.

6. The method of claim 5, wherein, The configuration information of the measurement reference signal comprises at least one of the following information: a mapping relationship between the candidate OAM mode and the measurement reference signal; an identifier of the measurement reference signal; a second time-frequency location occupied by the measurement reference signal.

7. The method of claim 1, wherein, Before the measurement reference signal corresponding to the candidate OAM mode is sent to the receiving device, the method further comprises: sending measurement configuration information to the receiving device.

8. The method of claim 7, wherein, The measurement configuration information comprises at least one of the following information: a measurement quantity of the measurement reference signal; a reporting manner of the measurement quantity; a reporting condition to be met by the measurement quantity.

9. The method according to any one of claims 1-8, characterized in that, The measurement result comprises at least one of the following information: a measurement value of a first measurement quantity of the at least one measurement reference signal; an identifier of the measurement reference signal corresponding to the first measurement quantity.

10. A method for determining OAM modes, characterized in that, The method is performed by a receiving device, and the method comprises: receiving a measurement reference signal corresponding to a candidate OAM mode sent by a sending device; sending, to the sending device, a measurement result of at least one measurement reference signal; determining a target OAM mode from the candidate OAM modes based on an indication of the sending device; the determining of the target OAM mode from the candidate OAM modes based on the indication of the sending device comprises: receiving a DMRS port number sent by the sending device and determining the target OAM mode based on the DMRS port number.

11. The method of claim 10, wherein, After the target OAM mode is determined from the candidate OAM modes based on the indication of the sending device, the method further comprises: transmitting with the sending device based on the target OAM mode. The transmitting with the sending device based on the target OAM mode comprises: determining a first time-frequency location to be occupied when transmitting from a resource pool; determining a corresponding demodulation reference signal (DMRS) antenna port based on the target OAM mode; transmitting with the receiving device on the antenna port using the first time-frequency location.

12. The method of claim 11, wherein, The transmission with the sending device based on the target OAM mode comprises: determining a first time-frequency position to be occupied during transmission from a resource pool; determining a corresponding demodulation reference signal (DMRS) antenna port based on the target OAM mode; transmitting with the sending device on the antenna port using the first time-frequency position.

13. The method of claim 12, wherein, The determining of the first time-frequency position to be occupied during transmission from the resource pool comprises: receiving time-frequency position indication information sent by the sending device; determining the first time-frequency position from the resource pool based on the time-frequency position indication information.

14. The method of claim 10, wherein, Before the receiving of the measurement reference signal corresponding to the candidate OAM mode sent by the sending device, the method further comprises: receiving configuration information of the measurement reference signal sent by the sending device.

15. The method of claim 14, wherein, The configuration information of the measurement reference signal comprises at least one of the following information: a mapping relationship between the candidate OAM mode and the measurement reference signal; an identifier of the measurement reference signal; a second time-frequency position occupied by the measurement reference signal.

16. The method of claim 10, wherein, Before the receiving of the measurement reference signal corresponding to the candidate OAM mode sent by the sending device, the method further comprises: receiving measurement configuration information sent by the sending device.

17. The method of claim 16, wherein, The measurement configuration information comprises at least one of the following information: a measurement quantity of the measurement reference signal; a reporting mode of the measurement quantity; a reporting condition to be met by the measurement quantity.

18. The method of claim 17, wherein, The sending of the measurement result of at least one measurement reference signal to the sending device comprises: selecting a first measurement quantity meeting the reporting condition from the measurement quantity of the measurement reference signal; sending, as the measurement result, a measurement value of the first measurement quantity and an identifier of the measurement reference signal corresponding to the first measurement quantity to the sending device.

19. A communications device, characterized by The method comprises: a transceiving module configured to send, to a receiving device, a measurement reference signal corresponding to a candidate OAM mode; receive a measurement result of at least one measurement reference signal sent by the receiving device; determine a target OAM mode from the candidate OAM modes based on the measurement result and indicate the target OAM mode to the receiving device; the manner of indicating the target OAM mode to the receiving device comprises: implicitly indicating the target OAM mode to the receiving device through a DMRS port number corresponding to the target OAM mode.

20. A communications device, characterized by The method comprises: a transceiving module configured to receive, from a sending device, a measurement reference signal corresponding to a candidate OAM mode; send a measurement result of at least one measurement reference signal to the sending device; determine a target OAM mode from the candidate OAM modes based on an indication of the sending device; the determining of the target OAM mode from the candidate OAM modes based on the indication of the sending device comprises: receiving a DMRS port number sent by the sending device and determining the target OAM mode based on the DMRS port number.

21. A communications device, characterized by The apparatus comprises a processor and a memory, the memory storing a computer program, and the processor executes the computer program stored in the memory to cause the apparatus to perform the method of any one of claims 1 to 9 or 10 to 18.

22. A computer-readable storage medium for storing instructions that, when executed, cause the method of any one of claims 1 to 9 or 10 to 18 to be implemented.

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