Method for transmitting and receiving reference signal configuration information and apparatus therefor

Abstract

The embodiment of the invention discloses a method and a device for sending and receiving reference signal configuration information, which can be applied to systems of Internet of Vehicles, Internet of Things, AR, VR and the like, and the method comprises the following steps: receiving capability information sent by second communication equipment, and sending configuration information of an orbital angular momentum (OAM) measurement reference signal to the second communication equipment, the configuration information is used for indicating an antenna port for measuring the OAM measurement reference signal in the second communication equipment and / or an OAM modal value corresponding to the antenna port, and the OAM modal value is determined according to an OAM modal number supported by the second communication equipment in the capability information. And determining configuration information of an OAM measurement reference signal corresponding to the second communication device based on the received capability information of the second communication device, thereby determining the configuration information of the OAM measurement reference signal when downlink data transmission is performed between the first communication device and the second communication device by using the OAM signal.

Description

Method and device for sending and receiving reference signal configuration information Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a method and apparatus for sending and receiving reference signal configuration information. Background Art

[0002] With the continuous development of wireless communications, the requirements for communication capabilities are becoming increasingly higher. In addition to developing higher frequency bands, the mutual orthogonality of OAM beams can theoretically infinitely improve spectrum utilization.

[0003] Before using an OAM beam to send a downlink signal, channel estimation is required to obtain channel information based on the configuration information of the OAM measurement reference signal. However, there is currently a lack of effective means for determining the configuration information of the OAM measurement reference signal.

[0004] Public content

[0005] The embodiments of the present disclosure provide a method and apparatus for sending and receiving reference signal configuration information, which can be applied to the Internet of Vehicles, such as vehicle-to-everything (V2X) communication, long-term evolution-vehicle (LTE-V) communication, vehicle-to-vehicle (V2V) communication, etc., or can be used in the fields of the Internet of Things, virtual reality (VR), augmented reality (AR), etc., and based on the capability information of the second communication device, determine the configuration information of the OAM measurement reference signal measured by the second communication device.

[0006] In a first aspect, an embodiment of the present disclosure provides a method for sending reference signal configuration information, performed by a first communications device, the method including:

[0007] receiving capability information sent by the second communication device;

[0008] Configuration information of an orbital angular momentum OAM measurement reference signal is sent to the second communication device, wherein the configuration information is used to indicate an antenna port for measuring the OAM measurement reference signal in the second communication device, and / or an OAM modal value corresponding to the antenna port, and the OAM modal value is determined based on the number of OAM modes supported by the second communication device in the capability information.

[0009] In this technical solution, the first communication device determines the configuration information for measuring the OAM measurement reference signal of at least one antenna port in the second communication device based on the capability information received from the second communication device, and sends it to the second communication device, thereby realizing the determination of the configuration information for measuring the OAM measurement reference signal in the second communication device.

[0010] In a second aspect, an embodiment of the present disclosure provides a method for receiving reference signal configuration information, performed by a second communications device, the method including:

[0011] sending capability information to the first communication device;

[0012] Receive configuration information of an orbital angular momentum OAM measurement reference signal sent by the first communication device, wherein the configuration information is used to indicate an antenna port for measuring the OAM measurement reference signal in the second communication device, and / or an OAM modal value corresponding to the antenna port, where the OAM modal value is determined based on the number of OAM modes supported by the second communication device in the capability information.

[0013] In a third aspect, an embodiment of the present disclosure provides an apparatus for sending reference signal configuration information, which is provided on a first communication device and includes:

[0014] a receiving module, configured to receive capability information sent by a second communication device;

[0015] a sending module, configured to send configuration information of an orbital angular momentum OAM measurement reference signal to the second communication device, wherein the configuration information is used to indicate an antenna port for measuring the OAM measurement reference signal in the second communication device, and / or an OAM modal value corresponding to the antenna port, where the OAM modal value is determined based on the number of OAM modes supported by the second communication device in the capability information.

[0016] In a fourth aspect, an embodiment of the present disclosure provides an apparatus for receiving reference signal configuration information, on a second communication device, including:

[0017] A sending module, configured to send capability information to the first communication device;

[0018] A receiving module, configured to receive configuration information of an orbital angular momentum OAM measurement reference signal sent by the first communication device, wherein the configuration information is used to indicate an antenna port for measuring the OAM measurement reference signal in the second communication device, and / or an OAM modal value corresponding to the antenna port, where the OAM modal value is determined based on the number of OAM modes supported by the second communication device in the capability information.

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] In the eleventh aspect, an embodiment of the present disclosure provides a computer-readable storage medium for storing instructions for the above-mentioned first communication device, and when the instructions are executed, the first communication device executes the method described in the above-mentioned first aspect.

[0026] In a twelfth aspect, an embodiment of the present disclosure provides a readable storage medium for storing instructions for the above-mentioned second communication device, and when the instructions are executed, the second communication device executes the method described in the above-mentioned second aspect.

[0027] 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 the first aspect above.

[0028] In a fourteenth 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 the second aspect above.

[0029] In a fifteenth aspect, the present disclosure provides a chip system comprising at least one processor and an interface for supporting a first communication device in implementing the functions described in the first aspect, such as determining or processing at least one of the data and information described in the above method. In one possible design, the chip system further comprises a memory for storing computer programs and data necessary for the first communication device. The chip system may consist of a chip alone or may include a chip and other discrete components.

[0030] In a sixteenth aspect, the present disclosure provides a chip system comprising at least one processor and an interface for supporting a second communication device in implementing the functions described in the second aspect, such as determining or processing at least one of the data and information described in the aforementioned method. In one possible design, the chip system further comprises a memory for storing computer programs and data necessary for the second communication device. The chip system may consist of a chip alone or may include a chip and other discrete components.

[0031] In a seventeenth aspect, the present disclosure provides a computer program, which, when executed on a computer, enables the computer to execute the method described in the first aspect above.

[0032] In an eighteenth aspect, the present disclosure provides a computer program, which, when executed on a computer, enables the computer to execute the method described in the second aspect above. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the background technology, the drawings required for use in the embodiments of the present disclosure or the background technology will be described below.

[0034] FIG1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure;

[0035] FIG2 is a schematic flow chart of a method for sending reference signal configuration information provided by an embodiment of the present disclosure;

[0036] FIG3 is a schematic flow chart of another method for sending reference signal configuration information provided by an embodiment of the present disclosure;

[0037] FIG4 is a schematic diagram of a flow chart of another apparatus for sending reference signal configuration information provided by an embodiment of the present disclosure;

[0038] FIG5 is a schematic flow chart of a method for receiving reference signal configuration information provided by an embodiment of the present disclosure;

[0039] FIG6 is a schematic flow chart of another method for receiving reference signal configuration information provided by an embodiment of the present disclosure;

[0040] FIG7 is a schematic structural diagram of an apparatus for sending reference signal configuration information provided by an embodiment of the present disclosure;

[0041] FIG8 is a schematic structural diagram of an apparatus for receiving reference signal configuration information provided by an embodiment of the present disclosure;

[0042] FIG9 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure;

[0043] FIG10 is a schematic structural diagram of a chip provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0044] To facilitate understanding, the terms involved in this disclosure are first introduced.

[0045] 1. Orbital Angular Momentum (OAM)

[0046] OAM (Orbital Angular Momentum) represents the rotation of electrons around their propagation axis. It is generated by the rotation of energy flow around the optical axis, causing the phase front of electromagnetic waves to take on a vortex shape. OAM is independent of traditional modulation dimensions such as phase, frequency, and polarization. Theoretically, there are an infinite number of OAM modes carried by vortex electromagnetic waves. OAM beams with different integer eigenvalues ​​(OAM modal values) are mutually orthogonal, theoretically increasing spectrum efficiency infinitely.

[0047] In order to better understand the method for sending and receiving reference signal configuration information disclosed in an embodiment of the present disclosure, a communication system to which the embodiment of the present disclosure is applicable is first described below.

[0048] 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 first communication device and a second communication 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 first communication devices and two or more second communication devices may be included. The communication system shown in Figure 1 includes, for example, a first communication device 101 and a second communication device 102.

[0049] 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.

[0050] The first communication device 101 in the embodiment of the present disclosure is an entity on the network side for transmitting or receiving signals. For example, the first communication device 101 can be an evolved NodeB (eNB), a transmission reception point (TRP), a next generation NodeB (gNB) in an NR system, a relay device, 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 first communication device. The first communication 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 first communication device, such as a 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.

[0051] In the embodiment of the present disclosure, the second communication device 102 is a user-side entity for receiving or transmitting signals, such as a mobile phone. The second communication device may also be referred to as a terminal device, user equipment (UE), mobile station (MS), mobile terminal device (MT), etc. The second communication device may be a car with communication functions, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver functions, 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 a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, etc. The second communication device 102 may also be a relay device for forwarding. The embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the second communication device.

[0052] Among them, the use of OAM radio frequency electromagnetic waves for information transmission between the first communication device and the second communication device can effectively improve spectrum utilization. OAM radio frequency electromagnetic waves can be generated by a uniform circular array (UCA), a spiral phase plate, a parabolic antenna and a special electromagnetic structure. In an OAM communication system based on UCA, before the first communication device sends a downlink signal to the second communication device, it is necessary to perform channel estimation to obtain channel information. During the channel estimation process, how to determine the configuration information for measuring the OAM measurement reference signal in the second communication device is a problem to be solved. To this end, an embodiment of the present disclosure proposes a method for sending reference signal configuration information, which determines the configuration information for measuring the OAM measurement reference signal at the antenna port in the second communication device based on the capability information received from the second communication device, and sends it to the second communication device, thereby realizing the determination of the configuration information for measuring the OAM measurement reference signal in the second communication device.

[0053] 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.

[0054] The method and apparatus for sending reference signal configuration information provided by the present disclosure are described in detail below with reference to the accompanying drawings.

[0055] Please refer to Figure 2, which is a flowchart of a method for sending reference signal configuration information provided by an embodiment of the present disclosure, and the method is executed by a first communication device.

[0056] In the embodiments of the present disclosure, description is given by taking the first communication device as a base station and the second communication device as a terminal device or a relay device as an example.

[0057] In the first scenario of the embodiment of the present disclosure, the first communication device is a base station, and the second communication device is a terminal device or a relay device.

[0058] In the second scenario of the embodiment of the present disclosure, the first communication device is a base station, and the second communication device is a relay device.

[0059] In the third scenario of the embodiment of the present disclosure, the first communication device is a relay device, and the second communication device is a terminal device.

[0060] As shown in FIG2 , the method may include but is not limited to the following steps:

[0061] Step S201: receiving capability information sent by a second communication device.

[0062] The capability information includes the number of OAM modes supported by the second communication device. The OAM mode number may be the maximum number of OAM modes supported by the second communication device. The OAM mode number may be a set integer value, which may be determined based on the transmission performance of the second communication device. For example, the OAM mode number may be 2, the OAM mode number may be 6, or the OAM mode number may be 9.

[0063] Optionally, the number of OAM modes supported by the second communication device is less than or equal to the maximum number of supported OAM modes, and may include the maximum number of transmitting OAM modes and the maximum number of receiving OAM modes supported by the second communication device.

[0064] In one implementation of the embodiment of the present disclosure, a first communication device sends a capability query request to a second communication device, so that the first communication device can receive capability information sent by the second communication device.

[0065] In a second implementation manner of the embodiment of the present disclosure, the first communication device may also receive capability information actively sent by the second communication device.

[0066] Furthermore, the first communication device can determine the modal capability of the second communication device based on the OAM modal number carried in the capability information, and thus can configure the OAM modal value of the OAM measurement reference signal corresponding to at least one antenna port used to measure the OAM measurement reference signal in the second communication device based on the OAM modal number to generate configuration information.

[0067] Step S202: Send configuration information of an orbital angular momentum OAM measurement reference signal to the second communication device, where the configuration information is used to indicate an antenna port for measuring the OAM measurement reference signal in the second communication device, and / or an OAM modal value corresponding to the antenna port, where the OAM modal value is determined based on the number of OAM modes supported by the second communication device in the capability information.

[0068] The OAM measurement reference signal refers to a downlink measurement reference signal carried on a spiral electromagnetic wave and is used for downlink channel estimation or channel measurement, such as a cell-specific reference signal (CRS) and a channel state reference signal (CSI-RS).

[0069] As an implementation method, the configuration information is used to indicate the antenna port for measuring the OAM measurement reference signal in the second communication device, wherein there is at least one antenna port, that is, the antenna port for measuring the OAM measurement reference signal indicated in the configuration information is the antenna port configured for measuring the OAM measurement reference signal, and the antenna port has a corresponding OAM modal value. Therefore, the antenna port for measuring the OAM measurement reference signal indicated in the configuration information can enable the second communication device to determine the OAM modal value corresponding to at least one antenna port.

[0070] As a second implementation method, the configuration information is used to indicate the OAM modal value corresponding to the antenna port. The corresponding antenna port can be determined based on the OAM modal value, where there is at least one antenna port. For example, if the OAM modal value is [-2, 1], the port numbers of the corresponding antenna ports are determined to be port 2 to port 5. This achieves the establishment of a correspondence between the OAM measurement value and the antenna port by indicating the OAM modal value corresponding to the antenna port.

[0071] As a third implementation method, the configuration information is used to indicate at least one antenna port for measuring the OAM measurement reference signal in the second communication device, and the OAM modal value corresponding to the at least one antenna port. This achieves dual indication, i.e., indicating the antenna port and simultaneously indicating the OAM modal value corresponding to the antenna port, to determine the OAM modal value corresponding to the antenna port when measuring the OAM measurement reference signal. When the OAM modal value corresponding to the antenna port is not fixed, a correspondence between the antenna port and the OAM modal value can be established, thereby improving the reliability of determining the OAM modal value of the OAM measurement reference signal corresponding to the antenna port.

[0072] Regarding the OAM modal value and OAM modal number, in one implementation of the disclosed embodiment, a corresponding relationship exists between the OAM modal values ​​and OAM modal numbers supported by the second communication device. This corresponding relationship is used to generate the OAM modal value in the configuration information based on the OAM modal number in the capability information. It should be noted that an OAM modal value corresponds to an OAM mode. The number of OAM modes is the OAM modal number.

[0073] Optionally, the OAM modal value combination corresponds to the OAM modal number, and the OAM modal value combination includes OAM modal values ​​that match the number of OAM modal numbers supported by the second communication device. The number of OAM modal numbers matches the number of OAM modal values. For example, if the OAM modal number is 8, the OAM modal value combination is [-4, -3, -2, -1, 0, 1, 2, 3], and the number of OAM modal values ​​is 8. Thus, the number of OAM modal values ​​8 and the OAM modal number 8 match. The correspondence between the OAM modal number and the OAM modal value combination can be pre-set, while the correspondence between the OAM modal value combination and the OAM modal number, as well as the interval between the OAM modal values ​​in the OAM modal value combination, are not limited in this embodiment. Furthermore, after determining the corresponding OAM modal value combination based on the OAM modal number, when determining the OAM modal value corresponding to at least one antenna port from the OAM modal value combination, as one implementation method, a random matching method is used to determine the OAM modal value corresponding to the at least one antenna port. As a second implementation method, an OAM modal value with a large difference in modal value interval can be selected from the OAM modal value combination as the OAM modal value corresponding to the at least one antenna port. As a third implementation method, an OAM modal value with a large modal value and corresponding to the number of antenna ports can be selected from the OAM modal value combination as the OAM modal value corresponding to the at least one antenna port. The method for determining the OAM modal value corresponding to the at least one antenna port based on the OAM modal number is not limited in this embodiment.

[0074] In the method for sending reference signal configuration information in an embodiment of the present disclosure, capability information sent by a second communication device is received, and configuration information of an orbital angular momentum (OAM) measurement reference signal is sent to the second communication device, wherein the configuration information is used to indicate an antenna port for measuring the OAM measurement reference signal in the second communication device, and / or an OAM mode value corresponding to the antenna port, and the OAM mode value is determined based on the number of OAM modes supported by the second communication device in the capability information. Based on the received capability information of the second communication device, the configuration information of the OAM measurement reference signal corresponding to the second communication device is determined, so that when the OAM signal is used for downlink data transmission between the first communication device and the second communication device, the configuration information of the OAM measurement reference signal measured in the second communication device is determined.

[0075] Please refer to Figure 3, which is a flowchart of a method for sending reference signal configuration information provided by an embodiment of the present disclosure, the method being performed by a first communication device. As shown in Figure 3, the method may include but is not limited to the following steps:

[0076] Step S301: receiving capability information sent by a second communication device.

[0077] The capability information includes OAM capability support information and the number of OAM modes supported by the second communication device.

[0078] In the embodiment of the present disclosure, the OAM capability support information indicates whether the second terminal device has OAM capability, that is, whether the second terminal device supports data transmission between the second terminal device and the first terminal device using OAM waves. In one scenario, the capability information indicates that the second terminal device has OAM capability; in another scenario, the capability information indicates that the second terminal device does not have OAM capability.

[0079] The explanation in step 201 is also applicable to this step, and the principles are the same, so they will not be repeated here.

[0080] Step S302: When it is determined that the second communication device has OAM capability according to the OAM capability support information, the OAM mode value of the OAM measurement reference signal corresponding to the antenna port is determined according to the number of OAM modes supported by the second communication device.

[0081] Among them, the antenna indicated by the antenna port is, for example, a UCA antenna, which generates vortex electromagnetic waves, combines the vortex electromagnetic waves with the OAM mode, and realizes data transmission through multiplexing of vortex electromagnetic waves of different modes, thereby improving spectrum utilization.

[0082] In the embodiment of the present disclosure, the OAM mode number supported by the second communication device is less than or equal to the maximum OAM mode number supported by the second communication device. The explanations regarding the relationship between the OAM mode number and the OAM mode value in the above embodiment also apply to step 302, and the principles are the same, so they will not be repeated here.

[0083] Step 303: Send configuration information of the OAM measurement reference signal to the second communication device.

[0084] The configuration information includes an antenna port used to measure an OAM measurement reference signal and / or an OAM modal value corresponding to the antenna port.

[0085] The explanation of the configuration information can refer to the explanation in the aforementioned embodiment and will not be repeated here.

[0086] In an embodiment of the present disclosure, when it is determined that the second communication device has OAM capability based on OAM capability support information included in capability information received from the second communication device, the OAM modal value of the OAM measurement reference signal corresponding to the antenna port is determined based on the number of OAM modes supported by the second communication device, and configuration information of the OAM measurement reference signal is sent to the second communication device. The configuration information includes the antenna port used to measure the OAM measurement reference signal and / or the OAM modal value corresponding to the antenna port. The configuration information enables the second communication device to determine the antenna port used to measure the OAM measurement reference signal and / or the OAM modal value of the OAM measurement reference signal corresponding to the antenna port. This implements the determination of the modal configuration for measuring the OAM measurement reference signal at the antenna port in the second communication device, as well as the mapping relationship between the mode and the antenna port, based on the capability information of the second communication device during downlink transmission, thereby implementing the determination of configuration information before channel estimation for downlink transmission.

[0087] In another embodiment of the present disclosure, the configuration information includes time-frequency domain position indication information, wherein the time-frequency domain position indication information is used to indicate the time-frequency domain position of the OAM measurement reference signal corresponding to at least one antenna port.

[0088] The time-frequency domain position indication information includes at least one of the following:

[0089] Time domain position indication information, used to indicate the time domain position of receiving the OAM measurement reference signal;

[0090] Frequency domain position indication information, used to indicate the frequency domain position of the received OAM measurement reference signal;

[0091] The time-frequency domain pattern is used to indicate the time-domain and frequency-domain positions of the received OAM measurement reference signal.

[0092] In a first implementation manner of an embodiment of the present disclosure, the configuration information includes time domain position indication information of the OAM measurement reference signal corresponding to the antenna port, so as to indicate that the antenna port can determine the time interval for receiving data when receiving data sent by the first communication device, wherein the unit of the time domain interval can be a set number of time slots, or a set number of orthogonal frequency division multiplexing (OFDM) symbols.

[0093] In a second implementation of an embodiment of the present disclosure, the configuration information includes frequency domain location indication information of an OAM measurement reference signal corresponding to an antenna port, thereby indicating to the antenna port, when receiving data sent by a first communications device, that the antenna port can determine the frequency domain location of the received data, i.e., the frequency band in which the data is received. The frequency domain location indication information may indicate a resource block identifier or an identifier of a corresponding subcarrier set.

[0094] In a third implementation of an embodiment of the present disclosure, the configuration information includes time-frequency position indication information of the OAM measurement reference signal corresponding to the antenna port, that is, the time-frequency position of the antenna port agreed to be used to measure the OAM measurement reference signal, and the time-frequency position can be indicated by a time-frequency domain image.

[0095] In a fourth implementation method of an embodiment of the present disclosure, the configuration information includes time domain position indication information of the OAM measurement reference signal corresponding to the antenna port, frequency domain position indication information and at least two of the time-frequency domain patterns to meet the needs in different scenarios and meet the needs of signal reception.

[0096] As an example, the configuration information is carried in at least one of the following signalings:

[0097] Radio Resource Control (RRC) signaling;

[0098] Medium Access Control MAC signaling;

[0099] Physical layer signaling.

[0100] In a first implementation manner of an embodiment of the present disclosure, when a first terminal device sends configuration information of an orbital angular momentum OAM measurement reference signal to a second communication device, a radio resource control (RRC) signaling bearer is used to realize transmission of the configuration information.

[0101] In a second implementation of the embodiment of the present disclosure, when the first terminal device sends configuration information of the orbital angular momentum OAM measurement reference signal to the second communication device, medium access control (MAC) signaling is used to carry the configuration information.

[0102] In a third implementation method of an embodiment of the present disclosure, when the first terminal device sends configuration information of the orbital angular momentum OAM measurement reference signal to the second communication device, physical layer signaling is used as the carrier, wherein the physical layer signaling is, for example, downlink control information (DCI) to realize the transmission of the configuration information.

[0103] In a fourth implementation manner of an embodiment of the present disclosure, when a first terminal device sends configuration information of an orbital angular momentum OAM measurement reference signal to a second communication device, at least two of RRC signaling, MAC signaling, and physical layer signaling may be used for transmission to improve transmission efficiency and reliability.

[0104] In the method for sending reference signal configuration information in an embodiment of the present disclosure, when a first communication device determines, based on capability information reported by a second communication device, that the second communication device has OAM capability, the first communication device determines, based on the OAM mode number in the capability information and the number of OAM modes supported by the second communication device, the OAM mode value of the OAM measurement reference signal corresponding to each antenna port. At the same time, the configuration information also includes time-frequency domain position indication information of the OAM measurement reference signal, thereby implementing the configuration of the antenna ports required for the OAM measurement reference signal and the OAM mode values ​​corresponding to the antenna ports, as well as the time-frequency domain position indication information during downlink transmission, thereby solving the resource configuration problem and realizing channel estimation before downlink signal transmission.

[0105] Please refer to Figure 4, which is a flowchart of a method for sending reference signal configuration information provided by an embodiment of the present disclosure, the method being performed by a first communication device. As shown in Figure 4, the method may include but is not limited to the following steps:

[0106] Step 401: Receive capability information sent by a second communication device.

[0107] Step 402: Send configuration information of an orbital angular momentum (OAM) measurement reference signal to a second communication device.

[0108] Among them, step 401 and step 402 can refer to the relevant explanations in the above-mentioned embodiment, and the principles are the same, so they will not be repeated in this embodiment.

[0109] Step 403: Send an OAM measurement reference signal to the second communication device based on the configuration information.

[0110] In an embodiment of the present disclosure, after a first communication device sends configuration information for an OAM measurement reference signal to a second communication device, the first communication device then sends the OAM measurement reference signal to the second communication device based on the configuration information. Specifically, based on the antenna port for measuring the OAM measurement reference signal and / or the OAM modal value corresponding to the antenna port, as included in the configuration information, the first communication device receives the OAM measurement reference signal at the corresponding time-frequency domain location. Consequently, the antenna port of the second communication device measures the OAM measurement reference signal in accordance with the configuration information indicated by the first communication device to obtain measurement information obtained by the antenna port. The antenna port measurement information indicates the channel quality when the antenna port is measured in accordance with the corresponding configuration information.

[0111] Step 404: Receive measurement information of the OAM measurement reference signal from the second communication device.

[0112] The measurement information may be channel state information (CSI), where the CSI is used to indicate channel quality. The measurement information of the OAM measurement reference signal by the second communication device includes CSI information measured by each antenna port. The CSI information includes at least one of the following information:

[0113] Indication information of the antenna port of the measurement reference signal recommended for use by the second communications device, such as the number of the antenna port, or the resource (set) index of the recommended measurement reference signal;

[0114] Signal to Interference plus Noise Ratio (SINR);

[0115] Reference Signal Receiving Power (RSRP);

[0116] Reference Signal Received Quality (RSRQ);

[0117] Received Signal Strength Indicator (RSSI);

[0118] Step 405: Send configuration information of a demodulation reference signal (DMRS) to the second communication device according to the measurement information.

[0119] Among them, DMRS is used for downlink data demodulation.

[0120] In an embodiment of the present disclosure, based on measurement information, the quality of a channel determined by measurement at an antenna port in a second communication device can be determined. Based on the channel quality determined by measurement at the antenna port, an antenna port that meets quality requirements, an OAM modal value corresponding to the antenna port, and time-frequency domain information can be determined as configuration information for receiving DMRS by the second communication device. In other words, when a first communication device sends a demodulation reference signal to a second communication device, the configuration that the second communication device needs to use to receive the demodulation reference signal can be determined. Thus, by sending configuration information for the demodulation reference signal (DMRS) to the second communication device, the second communication device receives the DMRS signal and data at a specified time-frequency domain location, according to the indicated DMRS antenna port set and the corresponding OAM modal value, based on the DMRS configuration information.

[0121] The configuration information of the DMRS includes at least one of the following: an antenna port of the DMRS, time-frequency domain information of the DMRS, and an OAM modal value of the DMRS.

[0122] The configuration information of the demodulation reference signal DMRS is carried in at least one of the following signalings:

[0123] Radio Resource Control (RRC) signaling; Medium Access Control (MAC) signaling; Physical layer signaling.

[0124] Among them, the explanation of the signaling can refer to the aforementioned embodiment and will not be repeated here.

[0125] In the method for sending reference signal configuration information in an embodiment of the present disclosure, capability information sent by a second communication device is received, configuration information of an orbital angular momentum (OAM) measurement reference signal is sent to the second communication device, and the OAM measurement reference signal sent by the first communication device is received according to the configuration information. That is, the second communication device receives the OAM measurement reference information sent by the first communication device at a corresponding time-frequency domain position according to the antenna port and the corresponding OAM modal value specified in the configuration information, and measures the channel quality according to the OAM measurement reference information to determine the channel measurement information corresponding to the antenna port, and then sends the measurement information corresponding to the antenna port as the measurement information of the OAM measurement reference signal of the second communication device to the first communication device, so that the first communication device analyzes the measurement information of the OAM measurement reference signal, that is, determines the resource configuration of the demodulation reference signal through channel estimation, so as to improve the reliability of data transmission when downlink data transmission is performed on the PDCCH channel and the PDSCH channel.

[0126] Please refer to FIG. 5 , which is a flowchart of a method for receiving reference signal configuration information provided by an embodiment of the present disclosure, and the method is executed by a second communication device.

[0127] In the embodiments of the present disclosure, description is given by taking the first communication device as a base station and the second communication device as a terminal device or a relay device as an example.

[0128] In the first scenario of the embodiment of the present disclosure, the first communication device is a base station, and the second communication device is a terminal device or a relay device.

[0129] In the second scenario of the embodiment of the present disclosure, the first communication device is a base station, and the second communication device is a relay device.

[0130] In the third scenario of the embodiment of the present disclosure, the first communication device is a relay device, and the second communication device is a terminal device.

[0131] As shown in FIG5 , the method may include but is not limited to the following steps:

[0132] Step 501: Send capability information to a first communication device.

[0133] The capability information includes the number of OAM modes supported by the second communication device. The OAM mode number may be the maximum number of OAM modes supported by the second communication device. The OAM mode number may be a set integer value, which may be determined based on the transmission performance of the second communication device. For example, the OAM mode number may be 2, the OAM mode number may be 6, or the OAM mode number may be 9.

[0134] Optionally, the number of OAM modes supported by the second communication device is less than or equal to the maximum number of supported OAM modes, and may include the maximum number of transmitting OAM modes and the maximum number of receiving OAM modes supported by the second communication device.

[0135] In one implementation of the embodiment of the present disclosure, the second communication device receives a capability query request sent by the first communication device, and the second communication device sends capability information to the first communication device.

[0136] In a second implementation manner of the embodiment of the present disclosure, the second communication device actively sends capability information to the first communication device.

[0137] The relevant explanations in the aforementioned embodiments are also applicable to this embodiment and will not be repeated here.

[0138] Step 502: Receive configuration information of an orbital angular momentum OAM measurement reference signal sent by a first communication device, wherein the configuration information is used to indicate an antenna port for measuring the OAM measurement reference signal in a second communication device, and / or an OAM mode value corresponding to the antenna port, where the OAM mode value is determined based on the number of OAM modes supported by the second communication device in the capability information.

[0139] The OAM measurement reference signal refers to a downlink measurement reference signal carried on a spiral electromagnetic wave.

[0140] As an implementation method, the configuration information is used to indicate the antenna port for measuring the OAM measurement reference signal in the second communication device, wherein there is at least one antenna port, that is, the antenna port for measuring the OAM measurement reference signal indicated in the configuration information is the antenna port configured for measuring the OAM measurement reference signal, and the antenna port has a corresponding OAM modal value. Therefore, the antenna port for measuring the OAM measurement reference signal indicated in the configuration information can enable the second communication device to determine the OAM modal value corresponding to at least one antenna port.

[0141] As a second implementation method, the configuration information is used to indicate the OAM modal value corresponding to the antenna port. The corresponding antenna port can be determined based on the OAM modal value, where there is at least one antenna port. For example, if the OAM modal value is [-2, 1], the port numbers of the corresponding antenna ports are determined to be port 2 to port 5. This achieves the establishment of a correspondence between the OAM measurement value and the antenna port by indicating the OAM modal value corresponding to the antenna port.

[0142] As a third implementation method, the configuration information is used to indicate at least one antenna port for measuring the OAM measurement reference signal in the second communication device, and the OAM modal value corresponding to the at least one antenna port. This achieves dual indication, indicating both the antenna port and the OAM modal value corresponding to the antenna port, to determine the OAM modal value corresponding to the antenna port when measuring the OAM measurement reference signal. When the OAM modal value corresponding to the antenna port is not fixed, a correspondence between the antenna port and the OAM modal value can be established, thereby improving the reliability of determining the OAM modal value of the OAM measurement reference signal corresponding to the antenna port.

[0143] Regarding the OAM modal value and OAM modal number, in one implementation of the disclosed embodiment, a corresponding relationship exists between the OAM modal values ​​and OAM modal numbers supported by the second communication device. This corresponding relationship is used to generate the OAM modal value in the configuration information based on the OAM modal number in the capability information. It should be noted that an OAM modal value corresponds to an OAM mode. The number of OAM modes is the OAM modal number.

[0144] In one implementation of the embodiment of the present disclosure, the number of OAM modalities supported by the second communication device corresponds to an OAM modal value combination, and the OAM modal value combination includes OAM modal values ​​that match the number of OAM modalities supported by the second communication device. The number of OAM modal numbers matches the number of OAM modal values. For example, if the OAM modal number is 8, the OAM modal value combination is [-4, -3, -2, -1, 0, 1, 2, 3], and the number of OAM modal values ​​is 8, so that the number of OAM modal values ​​8 and the OAM modal number 8 match. The correspondence between the OAM modal number and the OAM modal value combination can be pre-set, while the correspondence between the OAM modal value combination and the OAM modal number, as well as the interval between the OAM modal values ​​in the OAM modal value combination, are not limited in this embodiment. Furthermore, after determining the corresponding OAM modal value combination based on the number of OAM modal values, when selecting the OAM modal value corresponding to at least one antenna port from the OAM modal value combination, as one implementation manner, a random matching method is used to determine the OAM modal value corresponding to the at least one antenna port; as a second implementation manner, an OAM modal value with a large difference in modal value interval can be selected from the OAM modal value combination as the OAM modal value corresponding to the at least one antenna port; as a third implementation manner, an OAM modal value with a large modal value and corresponding to the number of antenna ports can be selected from the OAM modal value combination as the OAM modal value corresponding to the at least one antenna port.

[0145] In the method for receiving reference signal configuration information in an embodiment of the present disclosure, capability information is sent to a first communication device, and configuration information of an orbital angular momentum OAM measurement reference signal sent by the first communication device is received. The configuration information is used to indicate the antenna port for measuring the OAM measurement reference signal in the second communication device, and / or the OAM mode value corresponding to the antenna port. The OAM mode value is determined based on the number of OAM modes supported by the second communication device in the capability information. Based on the capability information reported by the second communication device, the configuration information of the OAM measurement reference signal corresponding to the second communication device is determined. When the OAM signal is used for downlink data transmission between the first communication device and the second communication device, channel measurement is achieved by configuring the OAM measurement reference signal.

[0146] Please refer to Figure 6, which is a flowchart of another method for receiving reference signal configuration information provided by an embodiment of the present disclosure, the method being performed by a second communication device. As shown in Figure 6, the method may include but is not limited to the following steps:

[0147] Step 601: Send capability information to a first communication device.

[0148] The specific implementation process of step 601 can be found in the detailed description of any embodiment in the present disclosure and will not be repeated here.

[0149] The capability information includes OAM capability support information and the number of OAM modes supported by the second communication device.

[0150] The OAM capability support information is used by the first communication device to determine, when determining that the second communication device has the OAM capability based on the OAM capability support information, whether the second communication device has the OAM capability.

[0151] The OAM mode number is used by the first communication device to generate configuration information based on the OAM mode number; the configuration information includes indication information of at least one antenna port and / or the OAM mode value of the OAM measurement reference signal corresponding to at least one antenna port.

[0152] The explanations about capability information in any embodiment of the present disclosure are also applicable to this embodiment and will not be repeated here.

[0153] Step 602: Receive configuration information of an orbital angular momentum (OAM) measurement reference signal sent by a first communication device.

[0154] In an embodiment of the present disclosure, the configuration information further includes time-frequency domain position indication information, wherein the time-frequency domain position indication information is used to indicate the time-frequency domain position of the OAM measurement reference signal corresponding to the antenna port. The time-frequency domain position indication information includes at least one of the following:

[0155] Time domain position indication information;

[0156] Frequency domain position indication information;

[0157] Time-frequency domain pattern.

[0158] The configuration information is carried in at least one of the following signalings:

[0159] RRC signaling;

[0160] MAC signaling;

[0161] Physical layer signaling.

[0162] It should be noted that the relevant explanations about the configuration information in any embodiment of the present disclosure are also applicable to step 602 and will not be repeated here.

[0163] Step 603: Receive an OAM measurement reference signal sent by the first communication device based on the configuration information.

[0164] Step 604: Send measurement information of the OAM measurement reference signal to the first communication device.

[0165] Step 605: Receive configuration information of a demodulation reference signal (DMRS) sent by a first communication device.

[0166] The DMRS configuration information is generated according to the measurement information, and the DMRS configuration information includes at least one of the following: an antenna port of the DMRS, time-frequency domain information of the DMRS, and an OAM modal value of the DMRS.

[0167] The specific implementation process of steps 603 to 605 can be found in the detailed description of any embodiment in the present disclosure and will not be repeated here.

[0168] In the method for receiving reference signal configuration information in an embodiment of the present disclosure, when a first communication device determines that the second communication device has OAM capability based on capability information reported by the second communication device, the first communication device determines, based on the OAM mode number in the capability information, indication information of the antenna port in the second communication device and the corresponding OAM mode value. At the same time, the configuration information also includes time-frequency domain position indication information corresponding to the antenna port, thereby realizing the configuration of the antenna port for measuring the OAM measurement reference signal and the OAM mode value corresponding to the antenna port, as well as the time-frequency domain position indication information of the OAM measurement reference signal during downlink transmission, thereby solving the resource configuration problem. Furthermore, according to the configuration information, the OAM measurement reference signal sent by the first communication device is received, that is, the second communication device receives the OAM measurement reference information sent by the first communication device at the time-frequency domain position indicated in the configuration information according to the at least one antenna port and the corresponding OAM modal value specified in the configuration information, and measures the channel quality according to the OAM measurement reference information to determine the channel measurement information corresponding to the at least one antenna port, and then sends the measurement information corresponding to the at least one antenna port as the measurement information of the OAM measurement reference signal of the second communication device to the first communication device, so that the first communication device analyzes according to the measurement information of the OAM measurement reference signal, that is, determines the resource configuration of the demodulation reference signal through channel estimation, so as to improve the reliability of data transmission when downlink data transmission is performed on the PDCCH channel and the PDSCH channel.

[0169] In the embodiments provided above, the methods provided in the embodiments of the present disclosure are described from the perspectives of a first communication device and a first and second communication device, respectively. To implement the various functions provided in the methods of the embodiments of the present disclosure, the first communication device and the first and second communication devices may include hardware structures and software modules, and implement the aforementioned functions in the form of hardware structures, software modules, or a combination of hardware structures and software modules. Certain of the aforementioned functions may be implemented in the form of hardware structures, software modules, or a combination of hardware structures and software modules.

[0170] 7 is a schematic diagram of a device for transmitting reference signal configuration information according to an embodiment of the present disclosure. The device for transmitting reference signal configuration information includes a receiving module 701 and a transmitting module 702. The transmitting module 701 is configured to implement a transmitting function, and the receiving module 702 is configured to implement a receiving function.

[0171] The device for sending the reference signal configuration information may be the first communication device, or may be a device in the first communication device, or may be a device that can be used in conjunction with the first communication device.

[0172] An apparatus for receiving reference signal configuration information, comprising:

[0173] The receiving module 701 is configured to receive capability information sent by a second communication device.

[0174] A sending module 702 is used to send configuration information of an orbital angular momentum OAM measurement reference signal to the second communication device, wherein the configuration information is used to indicate the antenna port for measuring the OAM measurement reference signal in the second communication device, and / or the OAM modal value corresponding to the antenna port, and the OAM modal value is determined based on the number of OAM modes supported by the second communication device in the capability information.

[0175] As an implementation method, there is a corresponding relationship between the OAM modal value and the OAM modal number; wherein the corresponding relationship is used to generate the OAM modal value in the configuration information according to the OAM modal number in the capability information.

[0176] As an implementation manner, the capability information includes support information of OAM capabilities and the number of OAM modes supported by the second communication device;

[0177] The sending module 702 is specifically configured to:

[0178] When it is determined that the second communication device has the OAM capability according to the OAM capability support information, determining the OAM modal value of the OAM measurement reference signal corresponding to the antenna port according to the number of OAM modes supported by the second communication device;

[0179] Configuration information of the OAM measurement reference signal is sent to the second communication device, wherein the configuration information includes indication information of the antenna port and / or the OAM modal value of the OAM measurement reference signal corresponding to the antenna port.

[0180] As an implementation manner, the configuration information includes time-frequency domain position indication information;

[0181] The time-frequency domain position indication information is used to indicate the time-frequency domain position of the OAM measurement reference signal corresponding to the antenna port.

[0182] As an implementation manner, the time-frequency domain position indication information includes at least one of the following:

[0183] Time domain position indication information;

[0184] Frequency domain position indication information;

[0185] Time-frequency domain pattern.

[0186] As an implementation manner, the configuration information is carried in at least one of the following signalings:

[0187] Radio Resource Control (RRC) signaling;

[0188] Medium Access Control MAC signaling;

[0189] Physical layer signaling.

[0190] As an implementation manner, the sending module 702 is further configured to send the OAM measurement reference signal to the second communication device based on the configuration information;

[0191] The receiving module 701 is further configured to receive measurement information of the OAM measurement reference signal from the second communication device;

[0192] The sending module 702 is also used to send configuration information of the demodulation reference signal DMRS to the second communication device based on the measurement information; wherein the configuration information of the DMRS includes at least one of the following: the antenna port of the DMRS, the time-frequency domain information of the DMRS, and the OAM modal value of the DMRS.

[0193] As an implementation method, the first communication device is a base station and the second communication device is a relay device; or, the first communication device is a relay device and the second communication device is a terminal device; or, the first communication device is a base station and the second communication device is a terminal device.

[0194] In the present disclosure, based on the received capability information of the second communication device, the configuration information of the OAM measurement reference signal corresponding to the second communication device is determined, so that when the OAM signal is used for downlink data transmission between the first communication device and the second communication device, the configuration information of the OAM measurement reference signal measured in the second communication device is determined.

[0195] 8 , which is a schematic diagram of a structure of an apparatus for receiving reference signal configuration information provided by an embodiment of the present disclosure. The apparatus for receiving reference signal configuration information includes a sending module 801 and a receiving module 802 .

[0196] The apparatus for receiving the reference signal configuration information may be the second communication device, or may be an apparatus in the second communication device, or may be an apparatus that can be used in conjunction with the second communication device.

[0197] An apparatus for receiving reference signal configuration information, comprising:

[0198] The sending module 801 is configured to send capability information to a first communication device.

[0199] A receiving module 802 is used to receive configuration information of an orbital angular momentum OAM measurement reference signal sent by the first communication device, wherein the configuration information is used to indicate an antenna port for measuring the OAM measurement reference signal in the second communication device, and / or an OAM modal value corresponding to the antenna port, and the OAM modal value is determined based on the number of OAM modes supported by the second communication device in the capability information.

[0200] As an implementation manner, there is a corresponding relationship between the OAM modal value and the OAM modal number; wherein the corresponding relationship is used to generate the OAM modal value in the configuration information according to the OAM modal number in the capability information.

[0201] As an implementation manner, the capability information includes support information of OAM capabilities and the number of OAM modes supported by the second communication device;

[0202] The OAM capability support information is used by the first communication device to determine, when determining that the second communication device has the OAM capability based on the OAM capability support information, whether the second communication device has the OAM capability, to send the configuration information to the second communication device;

[0203] The number of OAM modes supported by the second communication device is used by the first communication device to generate the configuration information; the configuration information includes antenna port information used to measure the OAM measurement reference signal and / or the OAM mode value corresponding to the antenna port.

[0204] As an implementation manner, the configuration information includes time-frequency domain position indication information;

[0205] The time-frequency domain position indication information is used to indicate the time-frequency domain position of the OAM measurement reference signal corresponding to at least one of the antenna ports. As an implementation method, the time-frequency domain position indication information includes at least one of the following:

[0206] Time domain position indication information;

[0207] Frequency domain position indication information;

[0208] Time-frequency domain pattern.

[0209] As an implementation manner, the configuration information is carried in at least one of the following signalings:

[0210] RRC signaling;

[0211] MAC signaling;

[0212] Physical layer signaling.

[0213] As an implementation manner, the receiving module 802 is further configured to receive the OAM measurement reference signal sent by the first communication device based on the configuration information;

[0214] The sending module 801 is further configured to send measurement information of the OAM measurement reference signal to the first communication device;

[0215] The receiving module 802 is also used to receive configuration information of the demodulation reference signal DMRS sent by the first communication device; wherein the configuration information of the DMRS is generated based on the measurement information, and the configuration information of the DMRS includes at least one of the following: the antenna port of the DMRS, the time-frequency domain information of the DMRS, and the OAM modal value of the DMRS.

[0216] As an implementation method, the first communication device is a base station and the second communication device is a relay device; or, the first communication device is a relay device and the second communication device is a terminal device; or, the first communication device is a base station and the second communication device is a terminal device.

[0217] In the present disclosure, based on the capability information of the second communication device, the configuration information of the OAM measurement reference signal corresponding to the second communication device is determined, so that when the OAM signal is used for downlink data transmission between the first communication device and the second communication device, the configuration information of the OAM measurement reference signal measured in the second communication device is determined.

[0218] Please refer to Figure 9, which is a schematic diagram of the structure of a communication device 900 provided in an embodiment of the present disclosure. The communication device 900 can be a first communication device, or a second communication device, or a chip, chip system, or processor that supports the first communication device to implement the above method, or a chip, chip system, or processor that supports the second communication device to implement the above method. The device can be used to implement the method described in the above method embodiment, and please refer to the description in the above method embodiment for details. The communication device 900 may include one or more processors 901. The processor 901 can be a general-purpose processor or a dedicated 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 device (such as 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.

[0219] Optionally, the communication device 900 may further include one or more memories 902, on which a computer program 904 may be stored. The processor 901 executes the computer program 904 to cause the communication device 900 to perform the method described in the above method embodiment. Optionally, the memory 902 may also store data. The communication device 900 and the memory 902 may be provided separately or integrated together.

[0220] Optionally, the communication device 900 may further include a transceiver 905 and an antenna 906. The transceiver 905 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, and is configured to implement transceiver functions. The transceiver 905 may include a receiver and a transmitter. The receiver may be referred to as a receiver or a receiving circuit, and is configured to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, and is configured to implement a transmitting function.

[0221] Optionally, the communication device 900 may further include one or more interface circuits 907. The interface circuit 907 is configured to receive code instructions and transmit the code instructions to the processor 901. The processor 901 executes the code instructions to enable the communication device 900 to perform the method described in the above method embodiment.

[0222] In one implementation, processor 901 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.

[0223] In one implementation, processor 901 may store a computer program 903. Computer program 903, when executed on processor 901, enables communication device 900 to perform the method described in the above method embodiment. Computer program 903 may be embedded in processor 901, in which case processor 901 may be implemented by hardware.

[0224] In one implementation, the communication device 900 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 the present disclosure 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.

[0225] The communication device described in the above embodiments may be a first communication device or a second communication device, but the scope of the communication device described in this disclosure is not limited thereto, and the structure of the communication device may not be limited to FIG9 . The communication device may be an independent device or may be part of a larger device. For example, the communication device may be:

[0226] (1) An independent integrated circuit (IC), or chip, or chip system or subsystem;

[0227] (2) a collection of one or more ICs, optionally including a storage component for storing data and computer programs;

[0228] (3) ASIC, such as modem;

[0229] (4) Modules that can be embedded in other devices;

[0230] (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.;

[0231] (6)Others, etc.

[0232] 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 10. The chip shown in Figure 10 includes a processor 1001 and an interface 1003. The number of processors 1001 can be one or more, and the number of interfaces 1002 can be multiple.

[0233] For a chip used to implement the first communication device in the embodiment of the present disclosure:

[0234] Interface 1002 is used to execute steps 201 and 202 in FIG. 2 ; steps 301 , 302 and 303 in FIG. 3 ; steps 401 , 402 , 403 , 404 and 405 in FIG. 4 .

[0235] For the case where the chip is used to implement the function of the second communication device in the embodiment of the present disclosure:

[0236] Interface 1002 is used to execute steps 501 and 502 in FIG. 5 ; and steps 601 , 602 , 603 , 604 , and 605 in FIG. 6 .

[0237] Optionally, the chip further includes a memory 1003, which is used to store necessary computer programs and data.

[0238] Those skilled in the art will also appreciate that the various illustrative logical blocks and steps listed in the embodiments of the present disclosure may be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is 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 functionality for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of the present disclosure.

[0239] The present disclosure 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.

[0240] The present disclosure also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.

[0241] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented using 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 program is loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present disclosure are generated. 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 therein. 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)).

[0242] Those skilled in the art will understand that the various numerical numbers such as first and second involved in the present disclosure are only for the convenience of description and are not used to limit the scope of the embodiments of the present disclosure, and also indicate the order of precedence.

[0243] The at least one in the present disclosure can also be described as one or more, and the multiple can be two, three, four or more, which is not limited in the present disclosure. In the embodiments of the present disclosure, 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".

[0244] The correspondences shown in the tables of the present disclosure can be configured or predefined. The values ​​of the information in each table are merely examples and can be configured to other values, which are not limited by the present disclosure. When configuring the correspondences between information and parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, in the tables of the present disclosure, 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 may also adopt other names that can be understood by the communication device, and the values ​​or representations of the parameters may also adopt other values ​​or representations that can be understood by the communication device. When implementing the above tables, other data structures may 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.

[0245] The predefined in the present disclosure may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0246] Those skilled in the art will appreciate that the units and algorithm steps of the various examples 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 to be beyond the scope of this disclosure. 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.

[0247] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure 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 disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A method for sending reference signal configuration information, characterized in that: Executed by a first communication device, the method includes: receiving capability information sent by the second communication device; Configuration information of an orbital angular momentum OAM measurement reference signal is sent to the second communication device, wherein the configuration information is used to indicate an antenna port for measuring the OAM measurement reference signal in the second communication device, and / or an OAM modal value corresponding to the antenna port, and the OAM modal value is determined based on the number of OAM modes supported by the second communication device in the capability information.

2. The method according to claim 1, characterized in that There is a corresponding relationship between the OAM modal value and the OAM modal number; The corresponding relationship is used to generate the OAM modality value in the configuration information according to the OAM modality number in the capability information.

3. The method according to claim 1 or 2, characterized in that The capability information includes support information of OAM capability and the number of OAM modes supported by the second communication device; The sending configuration information of the orbital angular momentum OAM measurement reference signal to the second communication device includes: When it is determined that the second communication device has the OAM capability according to the OAM capability support information, determining the OAM modal value of the OAM measurement reference signal corresponding to the antenna port according to the number of OAM modes supported by the second communication device; Configuration information of the OAM measurement reference signal is sent to the second communication device, wherein the configuration information includes an antenna port for measuring the OAM measurement reference signal and / or an OAM modal value corresponding to the antenna port.

4. The method according to any one of claims 1 to 3, characterized in that The configuration information includes time-frequency domain position indication information; The time-frequency domain position indication information is used to indicate the time-frequency domain position of the OAM measurement reference signal corresponding to the antenna port.

5. The method according to claim 4, characterized in that The time-frequency domain position indication information includes at least one of the following: Time domain position indication information; Frequency domain position indication information; Time-frequency domain pattern.

6. The method according to any one of claims 1 to 3, characterized in that The configuration information is carried in at least one of the following signalings: Radio Resource Control (RRC) signaling; Medium Access Control MAC signaling; Physical layer signaling.

7. The method according to any one of claims 1 to 3, characterized in that The method further comprises: Based on the configuration information, sending the OAM measurement reference signal to the second communication device; receiving measurement information of the OAM measurement reference signal from the second communication device; According to the measurement information, configuration information of a demodulation reference signal DMRS is sent to the second communication device; wherein the configuration information of the DMRS includes at least one of the following: an antenna port of the DMRS, time-frequency domain information of the DMRS, and an OAM modal value of the DMRS.

8. The method according to any one of claims 1 to 7, characterized in that The first communication device is a base station, and the second communication device is a relay device; or, The first communication device is a relay device, and the second communication device is a terminal device; or, The first communication device is a base station, and the second communication device is a terminal device.

9. A method for receiving reference signal configuration information, characterized in that: Executed by a second communication device, the method includes: sending capability information to the first communication device; Receive configuration information of an orbital angular momentum OAM measurement reference signal sent by the first communication device, wherein the configuration information is used to indicate an antenna port for measuring the OAM measurement reference signal in the second communication device, and / or an OAM modal value corresponding to the antenna port, where the OAM modal value is determined based on the number of OAM modes supported by the second communication device in the capability information.

10. The method according to claim 9, characterized in that There is a corresponding relationship between the OAM modal value and the OAM modal number; The corresponding relationship is used to generate the OAM modality value in the configuration information according to the OAM modality number in the capability information.

11. The method according to claim 9 or 10, characterized in that The capability information includes support information of OAM capability and the number of OAM modes supported by the second communication device; The OAM capability support information is used by the first communication device to determine, when determining that the second communication device has the OAM capability based on the OAM capability support information, whether the second communication device has the OAM capability, to send the configuration information to the second communication device; The number of OAM modes supported by the second communication device is used by the first communication device to generate the configuration information; the configuration information includes antenna port information used to measure the OAM measurement reference signal, and / or the OAM mode value corresponding to the antenna port.

12. The method according to any one of claims 9 to 11, characterized in that: The configuration information includes time-frequency domain position indication information; The time-frequency domain position indication information is used to indicate the time-frequency domain position of the OAM measurement reference signal corresponding to the antenna port.

13. The method according to claim 12, characterized in that The time-frequency domain position indication information includes at least one of the following: Time domain position indication information; Frequency domain position indication information; Time-frequency domain pattern.

14. The method according to any one of claims 9 to 11, characterized in that: The configuration information is carried in at least one of the following signalings: RRC signaling; MAC signaling; Physical layer signaling.

15. The method according to any one of claims 9 to 11, characterized in that: The method further comprises: Based on the configuration information, receiving the OAM measurement reference signal sent by the first communication device; Sending measurement information of the OAM measurement reference signal to the first communication device; Receive configuration information of a demodulation reference signal (DMRS) sent by the first communication device; wherein the configuration information of the DMRS is generated based on the measurement information, and the configuration information of the DMRS includes at least one of the following: an antenna port of the DMRS, time-frequency domain information of the DMRS, and an OAM modal value of the DMRS.

16. The method according to any one of claims 9 to 15, characterized in that: The first communication device is a base station, and the second communication device is a relay device; or, The first communication device is a relay device, and the second communication device is a terminal device; or, The first communication device is a base station, and the second communication device is a terminal device.

17. A device for sending reference signal configuration information, characterized in that: include: a receiving module, configured to receive capability information sent by a second communication device; a sending module, configured to send configuration information of an orbital angular momentum OAM measurement reference signal to the second communication device, wherein the configuration information is used to indicate an antenna port for measuring the OAM measurement reference signal in the second communication device, and / or an OAM modal value corresponding to the antenna port, where the OAM modal value is determined based on the number of OAM modes supported by the second communication device in the capability information.

18. A device for receiving reference signal configuration information, characterized in that: include: A sending module, configured to send capability information to the first communication device; A receiving module, configured to receive configuration information of an orbital angular momentum OAM measurement reference signal sent by the first communication device, wherein the configuration information is used to indicate an antenna port for measuring the OAM measurement reference signal in the second communication device, and / or an OAM modal value corresponding to the antenna port, where the OAM modal value is determined based on the number of OAM modes supported by the second communication device in the capability information.

19. 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 enable the communication device to perform the method according to any one of claims 1 to 8.

20. 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 enable the communication device to perform the method according to any one of claims 9 to 16.

21. A communication device, characterized in that: include: processor and interface circuits; The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to run the code instructions to perform the method according to any one of claims 1 to 8.

22. A communication device, characterized in that: include: processor and interface circuits; The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to run the code instructions to perform the method according to any one of claims 9 to 16.

23. A computer-readable storage medium storing instructions, which, when executed, perform the method according to any one of claims 1 to 8.

24. A computer-readable storage medium storing instructions, which, when executed, perform the method according to any one of claims 9 to 16.

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