Communication method and apparatus, and storage medium

Abstract

The embodiments of the present disclosure relate to the technical field of communications. Provided are a communication method and apparatus, and a storage medium. The communication method comprises: generating configuration information of a first reference signal; and sending the configuration information, wherein the configuration information comprises antenna description information of the first reference signal, the antenna description information is used for indicating a mapping relationship between N antennas of a second node and X antennas of the second node that are used for transmitting the first reference signal, N is greater than or equal to 2 and N is a positive integer, and X is less than or equal to N and X is a positive integer.

Description

Communication method, device and storage medium

[0001] Cross-references

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on November 22, 2023, with application number 202311577687.0 and application name “Communication Method, Device and Storage Medium”. The entire contents of the application are incorporated by reference into this application. Technical Field

[0003] The present disclosure relates to the field of communication technologies, and in particular to a communication method, device, and storage medium. Background Art

[0004] In traditional communication systems, the transmit and receive capabilities of terminal antennas are mismatched. For example, a terminal can receive reference signals simultaneously on eight receive antennas, but can only transmit reference signals simultaneously on two transmit antennas. This requires the terminal to send reference signals using different transmit antennas at four different times in order for the base station to obtain complete channel information, resulting in high resource overhead.

[0005] Therefore, how to reduce the resource overhead of transmitting reference signals is an urgent problem to be solved.

[0006] Summary of the Invention

[0007] In a first aspect, a communication method is provided, applied to a first node, comprising: generating configuration information for a first reference signal; wherein the configuration information includes antenna description information for the first reference signal; the antenna description information is used to indicate a mapping relationship between N antennas of a second node and X antennas used by the second node to transmit the first reference signal; N is greater than or equal to 2 and is a positive integer; X is less than or equal to N and is a positive integer; and sending the configuration information.

[0008] In a second aspect, another communication method is provided, which is applied to a second node, including: receiving configuration information of a first reference signal; wherein the configuration information includes antenna description information of the first reference signal; the antenna description information is used to indicate a mapping relationship between N antennas of the second node and X antennas used by the second node to transmit the first reference signal; N is greater than or equal to 2 and is a positive integer; X is less than or equal to N and is a positive integer; and based on the configuration information, the first reference signal is transmitted.

[0009] According to a third aspect, a communication device is provided, including: a processing module for generating configuration information of a first reference signal; wherein the configuration information includes antenna description information of the first reference signal; the antenna description information is used to indicate a mapping relationship between N antennas of the second node and X antennas used by the second node to transmit the first reference signal; N is greater than or equal to 2 and is a positive integer; X is less than or equal to N and is a positive integer; and a communication module for sending the configuration information.

[0010] In a fourth aspect, another communication device is provided, including: a communication module for receiving configuration information of a first reference signal; wherein the configuration information includes antenna description information of the first reference signal; the antenna description information is used to indicate a mapping relationship between N antennas of the second node and X antennas used by the second node to transmit the first reference signal; N is greater than or equal to 2 and is a positive integer; X is less than or equal to N and is a positive integer; and a processing module for transmitting the first reference signal based on the configuration information.

[0011] In a fifth aspect, a communication device is provided, comprising a processor, which implements the communication method of the first aspect or the communication method of the second aspect when executing a computer program.

[0012] In a sixth aspect, a computer-readable storage medium is provided, the computer-readable storage medium including computer instructions; wherein, when the computer instructions are executed, the communication method of the first aspect mentioned above is implemented, or the communication method of the second aspect mentioned above is implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required for use in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0014] FIG1 is a schematic structural diagram of a transceiver antenna of a terminal provided by an embodiment of the present disclosure;

[0015] FIG2 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure;

[0016] FIG3 is a flow chart of a communication method provided by an embodiment of the present disclosure;

[0017] FIG4 is a schematic diagram of a time domain overlap of a first reference signal provided by an embodiment of the present disclosure;

[0018] FIG5 is a flow chart of another communication method provided by an embodiment of the present disclosure;

[0019] FIG6 is a schematic structural diagram of a transceiver antenna of a terminal provided by an embodiment of the present disclosure;

[0020] FIG7 is a schematic diagram of a transmission time of a sounding reference signal provided by an embodiment of the present disclosure;

[0021] FIG8 is a schematic structural diagram of a transceiver antenna of another terminal provided in an embodiment of the present disclosure;

[0022] FIG9 is a schematic diagram of another transmission time of a sounding reference signal provided by an embodiment of the present disclosure;

[0023] FIG10 is a schematic structural diagram of a communication device provided in an embodiment of the present disclosure;

[0024] FIG11 is a schematic structural diagram of another communication device provided in an embodiment of the present disclosure;

[0025] FIG12 is a schematic structural diagram of another communication device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present disclosure.

[0027] In the description of the present disclosure, unless otherwise specified, " / " means "or", for example, A / B can mean A or B. "And / or" in this article is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, "at least one" means one or more, and "a plurality" means two or more. Words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not limit them to be necessarily different.

[0028] It should be noted that in this disclosure, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this disclosure as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0029] As described in the background technology, the terminal's antenna transceiver capabilities do not match, and the number of reference signals that the terminal can simultaneously receive is higher than the number of reference signals that it can simultaneously send. That is, the terminal needs to send reference signals multiple times to enable the base station to obtain complete channel information.

[0030] For example, as shown in Figure 1, a terminal can only use one transmit antenna to send a reference signal at a time, and can use eight receive antennas to receive the reference signal. This terminal configuration is also described as 1T8R, or 1T8R. The terminal shown in Figure 1 has eight transmit antennas, eight receive antennas, one transmit RF channel, and eight receive RF channels. This means that the terminal can only use one transmit antenna to send a reference signal at a time. For the base station to obtain complete channel information, the terminal needs to use different transmit antennas to send the reference signal eight times. In this reference transmission process, resource overhead is high and transmission efficiency is low.

[0031] Based on this, an embodiment of the present disclosure provides a communication method, in which a first node sends configuration information of a first reference signal to a second node, so that the second node transmits the first reference signal based on the configuration information of the first reference signal. The above configuration information includes antenna description information of the first reference signal, and the antenna description information is used to indicate the mapping relationship between the antenna of the second node and the antenna used to transmit the first reference signal. Based on the above mapping relationship, the second node can select the antenna used to transmit the first reference signal. Compared with the related art in which the second node uses all antennas to transmit the first reference signal, the embodiment of the present disclosure can reduce the resource overhead of transmitting the first reference signal and improve the flexibility of transmitting the first reference signal, so as to improve the transmission efficiency of the first reference signal.

[0032] The communication method provided by the present disclosure can be applied to a communication system as shown in Figure 2 , which shows a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure. As shown in Figure 2 , the communication system includes a first node 10 and a second node 20 .

[0033] In a wireless communication scenario, a first node 10 and a second node 20 communicate via a wireless channel. For example, the first node 10 is a base station and the second node 20 is a terminal. The base station and the terminal communicate via a wireless channel. In another example, the first node 10 is a terminal and the second node 20 is a wireless router. The wireless router and the terminal communicate via a wireless channel. In another example, the first node 10 is a first base station and the second node 20 is a second base station. The first base station and the second base station communicate via a wireless channel. In another example, the first node 10 is a first terminal and the second node 20 is a second terminal. The first terminal and the second terminal communicate via a wireless channel. In another example, the first node 10 is a repeater and the second node 20 is a base station. The base station and the repeater communicate via a wireless channel. In another example, the first node 10 is a terminal and the second node 20 is a repeater. The repeater and the terminal communicate via a wireless channel. In another example, the first node 10 is a first repeater and the second node 20 is a second repeater. The first repeater and the second repeater communicate via a wireless channel. For another example, the first node 10 is a base station, the second node 20 is a satellite, and the satellite and base station communicate via a wireless channel. For another example, the first node 10 is a satellite, the second node 20 is a base station, and the base station and satellite communicate via a wireless channel. For another example, the first node 10 is a terminal, the second node 20 is a satellite, and the satellite and terminal communicate via a wireless channel. For another example, the first node 10 is a satellite, the second node 20 is a terminal, and the terminal and satellite communicate via a wireless channel. For another example, the first node 10 is a ground device, the second node 20 is an aircraft, and the aircraft and ground device communicate via a wireless channel. For another example, the first node 10 is a first aircraft, the second node 20 is a second aircraft, and the first and second aircraft communicate via a wireless channel.

[0034] In the embodiments of the present disclosure, description is mainly made by taking the first node 10 as a base station and the second node 20 as a terminal as an example.

[0035] In some embodiments, the first node 10 is configured to provide wireless access services to multiple terminals. Specifically, a base station provides a service coverage area (also known as a cell). Terminals that enter this area can communicate with the base station via wireless signals to receive the wireless access services provided by the base station.

[0036] In some embodiments, the first node 10 can be a base station or an evolved base station (eNB or eNodeB) in long term evolution (LTE), long term evolution advanced (LTE-A), a base station device in a 5G network, or a base station in a future communication system, etc. The base station may include various macro base stations, micro base stations, home base stations, wireless remote stations, reconfigurable intelligent surfaces (RIS), routers, wireless fidelity (WIFI) devices and other network side devices.

[0037] In some embodiments, the second node 20 can be a device with wireless transceiver capabilities, which can be deployed on land, including indoors or outdoors, handheld, wearable, or vehicle-mounted; can also be deployed on the water (such as a ship, etc.); can also be deployed in the air (for example, on an airplane, a balloon, and a satellite, etc.). The terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical care, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. The embodiments of the present disclosure do not limit the application scenarios. The terminal may sometimes also be referred to as a user, user equipment (UE), access terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal, mobile device, UE terminal, wireless communication equipment, UE agent or UE device, etc., but the embodiments of the present disclosure are not limited to this.

[0038] It should be noted that Figure 2 is only an exemplary framework diagram. The number of devices included in Figure 2 and the names of each device are not restricted. In addition to the devices shown in Figure 2, the communication system may also include other devices, such as core network devices.

[0039] The application scenarios of the embodiments of the present disclosure are not limited. The system architecture and business scenarios described in the embodiments of the present disclosure are intended to more clearly illustrate the technical solutions of the embodiments of the present disclosure and do not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. It is known to those skilled in the art that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.

[0040] FIG3 shows a flow chart of a communication method provided by the present disclosure. As shown in FIG3 , the communication method is applied to a first node and includes the following steps:

[0041] S101: Generate configuration information of a first reference signal.

[0042] In some embodiments, when a first node needs to obtain channel information between itself and a second node, it starts generating configuration information of a first reference signal.

[0043] It should be understood that the channel information of the channel between the first node and the second node is determined based on the first reference signal transmitted by the second node. In the disclosed embodiment, the second node is required to transmit the first reference signal based on the configuration information of the first reference signal. Therefore, when the first node needs to obtain information about the channel between it and the second node, it begins generating configuration information for the first reference signal, causing the second node to transmit the first reference signal based on the configuration information of the first reference signal, and further causing the first node to obtain channel information between it and the second node based on the first reference signal.

[0044] In some embodiments, the first node receives antenna configuration information of the second node sent by the second node, to generate configuration information of the first reference signal according to the antenna configuration information.

[0045] The antenna configuration information includes at least one of the following: antenna implementation method, antenna location information, antenna topology, and antenna material.

[0046] In some embodiments, the configuration information includes antenna description information for the first reference signal. The antenna description information is used to indicate a mapping relationship between N antennas of the second node and X antennas used by the second node to transmit the first reference signal; N is greater than or equal to 2 and is a positive integer; and X is less than or equal to N and is a positive integer.

[0047] For example, taking the terminal shown in Figure 1 as the second node, the N antennas of the second node are the 8 transmitting antennas of the terminal in Figure 1, and the X antennas of the second node used to transmit the first reference signal are the antennas actually used by the terminal in Figure 1 when transmitting the first reference signal.

[0048] In some embodiments, the first node receives the suggested antenna description information sent by the second node, so as to generate antenna description information of the first reference signal according to the suggested antenna description information.

[0049] In some embodiments, the mapping relationship indicated by the antenna description information may be used to configure antenna information of the second node when transmitting the first reference signal.

[0050] Exemplarily, the antenna description information includes the number of antennas and antenna numbers used by the second node to transmit the first reference signal. For example, the antenna description information includes that the number of antennas used by the second node to transmit the first reference signal is 4, and the antenna numbers are transmit antenna 1, transmit antenna 2, transmit antenna 3, and transmit antenna 4. After the second node receives the configuration information for the first reference signal sent by the first node, based on the antenna description information for the first reference signal in the configuration information, it uses transmit antenna 1, transmit antenna 2, transmit antenna 3, and transmit antenna 4 to transmit the first reference signal.

[0051] As another example, taking the terminal shown in Figure 1 as the second node, the terminal is configured as 1 receive and 8 transmit. When transmitting the first reference signal, the terminal needs to use 8 antennas to transmit the first reference signal at different times. In this embodiment of the present disclosure, if the antenna description information includes that the number of antennas used by the terminal to transmit the first reference signal is 4, and the antennas are numbered as transmit antenna 1, transmit antenna 2, transmit antenna 3, and transmit antenna 4, when transmitting the first reference signal, the terminal only needs to use the above four transmit antennas to transmit the first reference signal at different times.

[0052] In this way, by sending the configuration information of the first reference signal to the second node, when the second node transmits the first reference signal based on the configuration information, a small number of transmitting antennas can be used to transmit the first reference signal, thereby reducing the resource overhead when transmitting the first reference signal and improving the transmission efficiency of the first reference signal.

[0053] In some embodiments, frequency domain resources used by Z antennas among the X antennas when transmitting the first reference signal are less than or equal to frequency domain resources used by the other XZ antennas when transmitting the first reference signal.

[0054] Exemplarily, the first node may allocate frequency domain resources to each of the X antennas according to a frequency domain channel condition corresponding to a transmitting antenna of the second node.

[0055] It should be noted that Z described in this embodiment and the embodiments below all have the following properties: Z is less than or equal to X, and Z is a positive integer. This disclosure will not be elaborated in detail below.

[0056] In this way, limited frequency domain resources can be effectively allocated to the transmitting antennas transmitting the first reference signal according to the transmission conditions of each antenna, thereby improving the utilization of frequency domain resources and reducing the frequency domain resource overhead when transmitting the first reference signal.

[0057] In some embodiments, the time domain resources used by Z antennas among the X antennas when transmitting the first reference signal are less than or equal to the time domain resources used by the other XZ antennas when transmitting the first reference signal.

[0058] Exemplarily, the first node may allocate time domain resources to each of the X antennas according to a time domain channel condition corresponding to a transmitting antenna of the second node.

[0059] In this way, time domain resources can be reasonably allocated to the transmitting antenna for transmitting the first reference signal, so that the second node can utilize the time domain resources more effectively. By allocating time domain resources, more first reference signals can be sent within the same time period, thereby improving the transmission efficiency of the first reference signal.

[0060] In some embodiments, transmission resources used by Z antennas among the X antennas when transmitting the first reference signal are less than or equal to transmission resources used by the other XZ antennas when transmitting the first reference signal.

[0061] The transmission resources include frequency domain resources and time domain resources. Exemplarily, the first node may allocate transmission resources to each of the X antennas based on the frequency domain channel device and time domain channel conditions corresponding to the transmitting antenna of the second node.

[0062] In this way, the transmission efficiency of the first reference signal can be more comprehensively improved. In the frequency domain, the utilization of frequency domain resources can be improved by flexibly allocating frequency domain resources. In the time domain, the utilization of time domain resources can be improved by reasonably allocating time domain resources.

[0063] In some embodiments, the transmission power used by Z antennas among the X antennas when transmitting the first reference signal is less than or equal to the transmission power used by the other XZ antennas when transmitting the first reference signal.

[0064] Exemplarily, the first node may allocate transmission power to each of the X antennas according to the capability, transmission purpose, transmission channel, etc. of each of the X antennas.

[0065] In this way, by reasonably allocating the transmission power of the transmitting antennas transmitting the first reference signal, the utilization rate of the transmission power can be improved, the interference between the antennas can be reduced, the transmission quality when transmitting the first reference signal can be improved, and unnecessary consumption can be reduced.

[0066] In some embodiments, the first reference signal transmitted by at least one of the X antennas is generated in a first sequence generation mode, and the first reference signal transmitted by at least one antenna is generated in a second sequence generation mode, where the first sequence generation mode is different from the second sequence generation mode.

[0067] The first sequence generation method is different from the second sequence generation method. Exemplarily, the first sequence generation method may be a pseudo-random Gold sequence generation method or a frequency modulation signal chirp sequence generation method. The second sequence generation method may be a pseudo-random Gold sequence generation method or a frequency modulation signal chirp sequence generation method.

[0068] It should be noted that the present disclosure does not limit the generation method of the first reference signal. There are at least two generation methods for the X first reference signals transmitted by X antennas. For example, taking X as 4, the generation method of the first reference signal transmitted by transmit antenna 1 can be the first sequence generation method, the generation method of the first reference signal transmitted by transmit antenna 2 can be the second sequence generation method, the generation method of the first reference signal transmitted by transmit antenna 3 can be the third sequence generation method, and the generation method of the first reference signal transmitted by transmit antenna 4 can be the fourth sequence generation method. The first sequence generation method, the first sequence generation method, the first sequence generation method, and the first sequence generation method are all different.

[0069] In this way, by transmitting first reference signals with different generation sequences, diverse transmission can be achieved, thereby improving signal coverage and anti-interference capabilities. Furthermore, first reference signals with different generation sequences can be transmitted along different paths during the transmission process, helping to overcome interference between multiple first reference signals.

[0070] In some embodiments, if Z of the X antennas fail to transmit the first reference signal, the receiving second node retransmits the first reference signal using the Z antennas. Retransmitting the first reference signal using the Z antennas of the second node provides a redundant transmission path, helps overcome initial transmission failures, and improves the reliability and robustness of the first reference signal.

[0071] In some embodiments, when at least one antenna among the X antennas transmits the first reference signal, the second reference signal is used to calculate the path loss, and when at least one antenna transmits the first reference signal, the third reference signal is used to calculate the path loss.

[0072] The second reference signal is different from the third reference signal. Exemplarily, the second reference signal may be a channel state information-reference signal (CSI-RS), a synchronization signal, a demodulation-reference signal (DM-RS), and a positioning reference signal (PRS). The third reference signal may be a CSI-RS, a DM-RS, a synchronization signal, and a PRS.

[0073] It should be noted that the present disclosure does not limit the reference signals used to calculate the path loss when transmitting the first reference signal. When X antennas transmit the first reference signal, at least two reference signals are used to calculate the path loss. For example, taking X as 4, when transmitting antenna 1 transmits the first reference signal, the CSI-RS is used to calculate the path loss; when transmitting antenna 3 transmits the first reference signal, the PRS is used to calculate the path loss; when transmitting antenna 5 transmits the first reference signal, the synchronization signal is used to calculate the path loss; and when transmitting antenna 7 transmits the first reference signal, the DM-RS is used to calculate the path loss.

[0074] In this way, when transmitting the first reference signal, different reference signals are used to calculate the path loss, which improves the diversity of the calculation, reduces the error in the calculation process, and can more accurately evaluate the path loss.

[0075] In some embodiments, the first reference signal comprises a sounding reference signal.

[0076] The sounding reference signal (SRS) is used to measure uplink channel frequency domain information and selectively schedule frequency domain resources based on the measurement results. The SRS can also be used to measure downlink channels and perform downlink channel preprocessing based on the measurement results.

[0077] In some embodiments, the configuration information further includes at least one of the following: priority information of the first reference signal, resource information of the first reference signal, sequence information of the first reference signal, and power information of the first reference signal.

[0078] The priority information includes at least one of the following: a priority relationship between the first reference signal and a signal transmitted on a physical uplink control channel; a priority relationship between the first reference signal and a demodulation reference signal; a priority relationship between the first reference signal and a phase tracking signal; and a priority relationship between multiple types of first reference signals.

[0079] For example, as shown in Figure 4, taking the first reference signal as a sounding reference signal, the sounding reference signal and other physical uplink channels or signals overlap in time-domain orthogonal frequency division multiplexing (OFDM). The first node may determine the priority information of the sounding reference signal based on actual transmission requirements, network load, and service quality.

[0080] For example, the transmission priority of a sounding reference signal (periodic, semi-continuous, or aperiodic transmission) is higher than the transmission priority of a physical uplink control channel carrying channel state information, and the transmission priority of a sounding reference signal is higher than the transmission priority of a physical uplink control channel carrying only a scheduling request.

[0081] For another example, when the physical uplink data channel does not carry uplink control information (UCI), the transmission priority of the sounding reference signal (periodic, semi-continuous, or non-periodic transmission) is higher than the transmission priority of the physical uplink data channel in the OFDM symbols where time domain overlap occurs.

[0082] For another example, when the physical uplink data channel carries UCI, if the sounding reference signal overlaps with the OFDM symbol carrying UCI, then on the above-mentioned OFDM symbol, the priority of the sounding reference signal (periodic, semi-continuous, or non-periodic transmission) is lower than that of the physical uplink data channel.

[0083] For another example, when the detection reference signal (periodic, semi-continuous, or non-periodic transmission) and the demodulation reference signal use different spatial filters (or different transmission beams), the transmission priority of the detection reference signal is lower than the transmission priority of the demodulation reference signal.

[0084] For another example, when the detection reference signal (periodic, semi-continuous, or non-periodic transmission) uses the same spatial filter (or the same transmission beam) as the demodulation reference signal, the transmission priority of the detection reference signal is greater than the transmission priority of the demodulation reference signal.

[0085] For another example, the transmission priority of the sounding reference signal is lower than that of the phase tracking reference signal.

[0086] For another example, when the uplink load is smaller than the downlink network load, the priority of the sounding reference signal used for the antenna switching type is higher than the transmission priority of the sounding reference signal used for the uplink data channel transmission type.

[0087] For another example, when the uplink load is greater than the downlink network load, the priority of the sounding reference signal used for antenna switching type is lower than the transmission priority of the sounding reference signal used for uplink data channel transmission.

[0088] In some embodiments, the resource information of the first reference signal is used to indicate the transmission resource of each antenna configured by the second node for transmitting the first reference signal.

[0089] In some embodiments, the sequence information of the first reference signal is used to indicate a generated sequence of the first reference signal transmitted by each antenna configured by the second node for transmitting the first reference signal.

[0090] In some embodiments, the resource information of the first reference signal is used to indicate the transmission power of each antenna configured by the second node for transmitting the first reference signal.

[0091] S102: Send configuration information.

[0092] In some embodiments, after the first node generates configuration information of the first reference signal, the configuration information is immediately sent to the second node.

[0093] In some other embodiments, when the second node needs to transmit the first reference signal, the second node sends a configuration information request to the first node to request the first node to send configuration information of the first reference signal. Correspondingly, when the first node receives the configuration information request sent by the second node, the first node sends the configuration information of the first reference signal to the second node.

[0094] In this way, by sending the configuration information of the first reference signal to the second node, the second node transmits the first reference signal based on the configuration information of the first reference signal. The above configuration information includes antenna description information of the first reference signal, which is used to indicate the mapping relationship between the antenna of the second node and the antenna used to transmit the first reference signal. Based on the above mapping relationship, the second node can select the antenna used to transmit the first reference signal. Compared with the related art in which the second node uses all antennas to transmit the first reference signal, the embodiment of the present disclosure can reduce the resource overhead of transmitting the first reference signal and increase the flexibility of transmitting the first reference signal, thereby improving the transmission efficiency of the first reference signal.

[0095] FIG5 shows a flow chart of another communication method provided by the present disclosure. As shown in FIG3 , the communication method is applied to the second node and includes the following steps:

[0096] S201: Receive configuration information of a first reference signal.

[0097] In some embodiments, the first node sends antenna configuration information of the second node to the second node, so that the first node generates configuration information of the first reference signal based on the antenna configuration information.

[0098] Exemplarily, the antenna configuration information includes at least one of the following: an implementation method of the antenna, location information of the antenna, a topological structure of the antenna, and a material of the antenna.

[0099] In some embodiments, the configuration information includes antenna description information of the first reference signal; the antenna description information is used to indicate a mapping relationship between N antennas through which the second node can transmit the first reference signal and X antennas used by the second node to transmit the first reference signal; N is greater than or equal to 2 and is a positive integer; and X is less than or equal to N and is a positive integer.

[0100] In some embodiments, the second node sends suggested antenna description information so that the first node generates antenna description information of the first reference signal based on the suggested antenna description information.

[0101] The recommended antenna description information is used to instruct the first node to generate antenna description information for the first reference signal based on the recommended antenna description information. Exemplarily, the recommended antenna description information may be antenna description information required by the terminal that complies with its own antenna configuration information. For example, if the terminal is configured with 1 transmit and 8 receive antennas, the antenna description information subsequently sent by the recommended base station may instruct the terminal to use transmit antenna 1, transmit antenna 2, transmit antenna 3, and transmit antenna 4 to transmit the first reference signal.

[0102] S202: Transmit a first reference signal based on the configuration information.

[0103] In some embodiments, the configuration information includes antenna description information of the first reference signal; the antenna description information is used to indicate a mapping relationship between N antennas of the second node and X antennas used by the second node to transmit the first reference signal; N is greater than or equal to 2 and is a positive integer; X is less than or equal to N and is a positive integer.

[0104] When the second communication node uses X antennas to transmit the first reference signal, it may select at most Y antennas to simultaneously transmit the first reference signal.

[0105] For example, taking the terminal configuration of 1 transmit and 8 receive as an example, in the related art, the terminal needs to use 8 antennas to transmit the first reference signal at different times. In the embodiment of the present disclosure, as shown in Figure 6, if the antenna description information indicates that the second node uses 4 transmit antennas to transmit the first reference signal, the antenna sequence numbers of the transmit antennas are transmit antenna 1, transmit antenna 3, transmit antenna 5, and transmit antenna 7 respectively. As shown in Figure 7, taking the first reference signal as the sounding reference signal as an example, the terminal, based on the configuration information, transmits the sounding reference signal. The specific description can be: the terminal uses transmit antenna 1 to transmit the sounding reference signal for the first time, the terminal uses transmit antenna 3 to transmit the sounding reference signal for the second time, the terminal uses transmit antenna 5 to transmit the sounding reference signal for the third time, and the terminal uses transmit antenna 7 to transmit the sounding reference signal for the fourth time. In this case, N is 8, X is 4, and Y is 1.

[0106] As another example, taking the terminal configuration of 2 transmit and 8 receive, as shown in Figure 8, if the antenna description information indicates that the second node uses four transmit antennas to transmit the first reference signal, the antenna numbers of the transmit antennas are transmit antenna 1, transmit antenna 3, transmit antenna 5, and transmit antenna 7. As shown in Figure 9, taking the first reference signal as a sounding reference signal as an example, the terminal, based on the configuration information, transmits the sounding reference signal. The specific description can be: the terminal uses transmit antenna 1 and transmit antenna 3 to transmit the sounding reference signal for the first time, and uses transmit antenna 5 and transmit antenna 7 to transmit the sounding reference signal for the second time. In this case, N is 8, X is 4, and Y is 2.

[0107] In some embodiments, frequency domain resources used by Z antennas among the X antennas when transmitting the first reference signal are less than or equal to frequency domain resources used by the other XZ antennas when transmitting the first reference signal.

[0108] Exemplarily, the frequency domain resources may be subcarriers. Taking the terminal shown in Figure 6 as an example, if the first node knows that the frequency domain channel corresponding to transmitting antenna 1 is relatively flat based on the frequency domain channel situation, the second node allocates 20 subcarriers to the first reference signal transmitted by transmitting antenna 1, and allocates 40 subcarriers to the second reference signals transmitted by transmitting antenna 3, transmitting antenna 5, and transmitting antenna 7. In this case, X is 4 and Z is 1. If the first node knows that the frequency domain channels corresponding to transmitting antenna 1 and transmitting antenna 5 are relatively flat based on the frequency domain channel situation, the second node allocates 20 subcarriers to the first reference signals transmitted by transmitting antenna 1 and transmitting antenna 5, and allocates 40 subcarriers to the second reference signals transmitted by transmitting antenna 3 and transmitting antenna 7. In this case, X is 4 and Z is 2.

[0109] In some embodiments, the time domain resources used by Z antennas among the X antennas when transmitting the first reference signal are less than or equal to the time domain resources used by the other XZ antennas when transmitting the first reference signal.

[0110] Exemplarily, the time domain resources may be OFDM symbols. Taking the terminal shown in Figure 6 as an example, if the first node determines, based on the time domain channel conditions, that the time domain channel corresponding to transmit antenna 1 is relatively flat, the second node allocates one OFDM symbol to the first reference signal transmitted by transmit antenna 1, and two OFDM symbols each to the second reference signals transmitted by transmit antennas 3, 5, and 7. In this case, X is 4 and Z is 1.

[0111] If the first node knows that the time domain channels corresponding to transmitting antenna 1 and transmitting antenna 5 are relatively flat based on the time domain channel conditions, the second node allocates 1 OFDM symbol to each of the first reference signals transmitted by transmitting antenna 1 and transmitting antenna 5, and allocates 2 OFDM symbols to each of the second reference signals transmitted by transmitting antenna 3 and transmitting antenna 7. At this time, X is 4 and Z is 2.

[0112] In some embodiments, transmission resources used by Z antennas among the X antennas when transmitting the first reference signal are less than or equal to transmission resources used by the other XZ antennas when transmitting the first reference signal.

[0113] Exemplarily, transmission resources include frequency domain resources and time domain resources. Frequency domain resources can be subcarriers, and time domain resources can be OFDM symbols. Taking the terminal shown in Figure 6 as an example, if the first node knows based on the channel conditions that the channel corresponding to transmit antenna 1 is relatively flat, the second node allocates one OFDM symbol (20 subcarriers per OFDM symbol) to the first reference signal transmitted by transmit antenna 1, and allocates two OFDM symbols (20 subcarriers per OFDM symbol) to each of the second reference signals transmitted by transmit antennas 3, 5, and 7. In this case, X is 4 and Z is 1. If the first node knows based on the channel conditions that the channels corresponding to transmit antennas 1 and 5 are relatively flat, the second node allocates one OFDM symbol (20 subcarriers per OFDM symbol) to each of the first reference signals transmitted by transmit antennas 1 and 5, and allocates two OFDM symbols (20 subcarriers per OFDM symbol) to each of the second reference signals transmitted by transmit antennas 3 and 7. In this case, X is 4 and Z is 2.

[0114] In some embodiments, the transmission power used by Z antennas among the X antennas when transmitting the first reference signal is less than or equal to the transmission power used by the other XZ antennas when transmitting the first reference signal.

[0115] For example, taking the terminal shown in Figure 6 as an example, the first node determines that the transmission power required by transmitting antenna 1 is lower based on the capabilities, transmission purpose and transmission channel of the four transmitting antennas. Therefore, the second node allocates a lower transmission power to transmitting antenna 1 than that of transmitting antenna 3, transmitting antenna 5 and transmitting antenna 7. At this time, X is 4 and Z is 1.

[0116] In some embodiments, the first reference signal transmitted by at least one of the X antennas is generated in a first sequence generation manner, and the first reference signal transmitted by at least one antenna is generated in a second sequence generation manner.

[0117] The first sequence generation method is different from the second sequence generation method.

[0118] Exemplarily, the first sequence can be a pseudo-random Gold sequence or a frequency-modulated signal chirp sequence. The second sequence can be a pseudo-random Gold sequence or a frequency-modulated signal chirp sequence. Taking the terminal shown in Figure 6 as an example, the second node uses transmitting antenna 1 to transmit a first reference signal generated using the first sequence generation method, transmitting antenna 3 to transmit a first reference signal generated using the second sequence generation method, transmitting antenna 5 to transmit a first reference signal generated using the fourth sequence generation method, and transmitting antenna 7 to transmit a first reference signal generated using the fourth sequence generation method. The first sequence generation method, the second sequence generation method, the third sequence generation method, and the fourth sequence generation method are all different.

[0119] In some embodiments, when Z antennas among the X antennas fail to transmit the first reference signal, the Z antennas are used to retransmit the first reference signal.

[0120] For example, using the terminal shown in Figure 6, when the second node transmits the first reference signal using transmit antenna 1, the transmission fails because the uplink OFDM symbol is configured as a downlink OFDM symbol by the second node. When the first reference signal is transmitted using transmit antenna 3, the transmission fails because the uplink OFDM symbol is occupied by other channels. The second node then retransmits the first reference signal using transmit antenna 1 and transmit antenna 3. In this case, X is 4 and Z is 2.

[0121] It should be noted that whether to retransmit the first reference signal is determined by the second node according to a preset rule. The preset rule can be determined by the second node, or can be determined by negotiation between the first node and the second node.

[0122] In some embodiments, when at least one antenna among the X antennas transmits the first reference signal, the second reference signal is used to calculate the path loss, and when at least one antenna transmits the first reference signal, the third reference signal is used to calculate the path loss.

[0123] The second reference signal is different from the third reference signal.

[0124] Exemplarily, taking the terminal shown in Figure 6 as an example, different transmitting antennas of the terminal will point to base station receiving antennas at different locations. When calculating the path loss for different transmitting antennas, the reference signals used may be different. The second reference signal can be CSI-RS, DM-RS, synchronization signal and PRS. The third reference signal can be CSI-RS, DM-RS, synchronization signal and PRS. When the second node uses transmitting antenna 1 to transmit the first reference signal, CSI-RS is used to calculate the path loss. When using transmitting antenna 3 to transmit the first reference signal, DM-RS is used to calculate the path loss. When using transmitting antenna 5 to transmit the first reference signal, the synchronization signal is used to calculate the path loss. When using transmitting antenna 7 to transmit the first reference signal, PRS is used to calculate the path loss.

[0125] In some embodiments, the first reference signal comprises a sounding reference signal.

[0126] In some embodiments, the configuration information further includes at least one of the following: priority information of the first reference signal, resource information of the first reference signal, sequence information of the first reference signal, and power information of the first reference signal.

[0127] In some embodiments, the priority information includes at least one of the following: a priority relationship between the first reference signal and a signal transmitted on a physical uplink control channel; a priority relationship between the first reference signal and a demodulation reference signal; a priority relationship between the first reference signal and a phase tracking signal; and a priority relationship between multiple types of first reference signals.

[0128] In some embodiments, the resource information of the first reference signal is used to indicate the transmission resource of each antenna configured by the second node for transmitting the first reference signal.

[0129] In some embodiments, the sequence information of the first reference signal is used to indicate a generated sequence of the first reference signal transmitted by each antenna configured by the second node for transmitting the first reference signal.

[0130] In some embodiments, the resource information of the first reference signal is used to indicate the transmission power of each antenna configured by the second node for transmitting the first reference signal.

[0131] In this way, the configuration information of the first reference signal sent by the first node is received, and the first reference signal is transmitted based on the configuration information of the first reference signal. The above configuration information includes antenna description information of the first reference signal, and the antenna description information is used to indicate the mapping relationship between the antenna of the second node and the antenna used to transmit the first reference signal. Based on the above mapping relationship, the second node can select the antenna used to transmit the first reference signal. Compared with the related art in which the second node uses all antennas to transmit the first reference signal, the embodiment of the present disclosure can reduce the resource overhead of transmitting the first reference signal and improve the flexibility of transmitting the first reference signal, so as to improve the transmission efficiency of the first reference signal.

[0132] It is understandable that, in order to implement the above functions, the communication device includes hardware structures and / or software modules corresponding to the execution of each function. It should be readily apparent to those skilled in the art that, in conjunction with the algorithmic steps of the various examples described in the embodiments of the present disclosure, the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present disclosure.

[0133] The embodiments of the present disclosure can divide the functional modules of the communication device according to the above-mentioned method embodiments. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one functional module. The above-mentioned integrated modules can be implemented in the form of hardware or software. It should be noted that the division of modules in the embodiments of the present disclosure is schematic and is only a logical functional division. In actual implementation, there may be other division methods. The following is an example of dividing each functional module corresponding to each function.

[0134] FIG10 is a schematic diagram of a communication device applied to a first node according to an embodiment of the present disclosure. The communication device 100 can execute the communication method provided in the above method embodiment. As shown in FIG10 , the communication device 100 includes a processing module 1001 and a communication module 1002 .

[0135] A processing module 1001 is configured to generate configuration information for a first reference signal, wherein the configuration information includes antenna description information for the first reference signal; the antenna description information is used to indicate a mapping relationship between N antennas of the second node and X antennas used by the second node to transmit the first reference signal; N is greater than or equal to 2 and is a positive integer; and X is less than or equal to N and is a positive integer. A communication module 1002 is configured to send the configuration information.

[0136] In some embodiments, frequency domain resources used by Z antennas among the X antennas when transmitting the first reference signal are less than or equal to frequency domain resources used by the other XZ antennas when transmitting the first reference signal, where Z is less than or equal to X and is a positive integer.

[0137] In some embodiments, time domain resources used by Z antennas among the X antennas when transmitting the first reference signal are less than or equal to time domain resources used by the other XZ antennas when transmitting the first reference signal, where Z is less than or equal to X and is a positive integer.

[0138] In some embodiments, the transmission resources used by Z antennas among the X antennas when transmitting the first reference signal are less than or equal to the transmission resources used by the other XZ antennas when transmitting the first reference signal; wherein Z is less than or equal to X and Z is a positive integer; the transmission resources include frequency domain resources and time domain resources.

[0139] In some embodiments, the transmission power used by Z antennas among the X antennas when transmitting the first reference signal is less than or equal to the transmission power used by the other XZ antennas when transmitting the first reference signal, where Z is less than or equal to X and is a positive integer.

[0140] In some embodiments, the first reference signal transmitted by at least one of the X antennas is generated in a first sequence generation manner, and the first reference signal transmitted by at least one antenna is generated in a second sequence generation manner.

[0141] In some embodiments, the communication module 1002 is further configured to receive the first reference signal retransmitted by the second node using Z antennas when Z antennas out of X antennas fail to transmit the first reference signal, where Z is less than or equal to X and is a positive integer.

[0142] In some embodiments, when at least one antenna among the X antennas transmits the first reference signal, the second reference signal is used to calculate the path loss, and when at least one antenna transmits the first reference signal, the third reference signal is used to calculate the path loss.

[0143] In some embodiments, the first reference signal comprises a sounding reference signal.

[0144] In some embodiments, the configuration information further includes at least one of the following: priority information of the first reference signal, resource information of the first reference signal, sequence information of the first reference signal, and power information of the first reference signal.

[0145] In some embodiments, the priority information includes at least one of the following: a priority relationship between the first reference signal and a signal transmitted on a physical uplink control channel; a priority relationship between the first reference signal and a demodulation reference signal; a priority relationship between the first reference signal and a phase tracking signal; and a priority relationship between multiple types of first reference signals.

[0146] In some embodiments, the communication module 1002 is further configured to receive antenna configuration information of the second node sent by the second node.

[0147] In some embodiments, the antenna configuration information includes at least one of the following: antenna implementation method, antenna location information, antenna topology, and antenna material.

[0148] In some embodiments, the communication module 1002 is further configured to receive recommended antenna description information sent by the second node.

[0149] FIG11 is a schematic diagram of a communication device for a second node according to an embodiment of the present disclosure. The communication device 110 can execute the communication method according to the above method embodiment. As shown in FIG11 , the communication device 110 includes a communication module 1101 and a processing module 1102 .

[0150] A communication module 1101 is configured to receive configuration information of a first reference signal, wherein the configuration information includes antenna description information of the first reference signal; the antenna description information is used to indicate a mapping relationship between N antennas of the second node and X antennas used by the second node to transmit the first reference signal; N is greater than or equal to 2 and is a positive integer; X is less than or equal to N and is a positive integer; and a processing module 1102 is configured to transmit the first reference signal based on the configuration information.

[0151] In some embodiments, frequency domain resources used by Z antennas among the X antennas when transmitting the first reference signal are less than or equal to frequency domain resources used by the other XZ antennas when transmitting the first reference signal, where Z is less than or equal to X and is a positive integer.

[0152] In some embodiments, time domain resources used by Z antennas among the X antennas when transmitting the first reference signal are less than or equal to time domain resources used by the other XZ antennas when transmitting the first reference signal, where Z is less than or equal to X and is a positive integer.

[0153] In some embodiments, the transmission resources used by Z antennas among the X antennas when transmitting the first reference signal are less than or equal to the transmission resources used by the other XZ antennas when transmitting the first reference signal; wherein Z is less than or equal to X and Z is a positive integer; the transmission resources include frequency domain resources and time domain resources.

[0154] In some embodiments, the transmission power used by Z antennas among the X antennas when transmitting the first reference signal is less than or equal to the transmission power used by the other XZ antennas when transmitting the first reference signal, where Z is less than or equal to X and is a positive integer.

[0155] In some embodiments, the first reference signal transmitted by at least one of the X antennas is generated in a first sequence generation manner, and the first reference signal transmitted by at least one antenna is generated in a second sequence generation manner.

[0156] In some embodiments, the communication module 1101 is further configured to use Z antennas to retransmit the first reference signal when Z antennas out of the X antennas fail to transmit the first reference signal, where Z is less than or equal to X and is a positive integer.

[0157] In some embodiments, when at least one antenna among the X antennas transmits the first reference signal, the second reference signal is used to calculate the path loss, and when at least one antenna transmits the first reference signal, the third reference signal is used to calculate the path loss.

[0158] In some embodiments, the first reference signal comprises a sounding reference signal.

[0159] In some embodiments, the configuration information further includes at least one of the following: priority information of the first reference signal, resource information of the first reference signal, sequence information of the first reference signal, and power information of the first reference signal.

[0160] In some embodiments, the priority information includes at least one of the following: a priority relationship between the first reference signal and a signal transmitted on a physical uplink control channel; a priority relationship between the first reference signal and a demodulation reference signal; a priority relationship between the first reference signal and a phase tracking signal; and a priority relationship between multiple types of first reference signals.

[0161] In some embodiments, the communication module 1101 is further configured to send antenna configuration information of the second node.

[0162] In some embodiments, the antenna configuration information includes at least one of the following: antenna implementation method, antenna location information, antenna topology, and antenna material.

[0163] In some embodiments, suggested antenna description information is sent.

[0164] In the case of implementing the functions of the above-mentioned integrated modules in hardware, the embodiments of the present disclosure provide another possible structure of the communication device involved in the above-mentioned embodiments. As shown in Figure 12, the communication device 120 includes: a processor 1202 and a bus 1204. Optionally, the communication device may also include a memory 1201; optionally, the communication device may also include a communication interface 1203.

[0165] Processor 1202 may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of this disclosure. Processor 1202 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. It may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of this disclosure. Processor 1202 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, or a combination of a DSP and a microprocessor.

[0166] The communication interface 1203 is used to connect to other devices via a communication network, such as Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0167] The memory 1201 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0168] As a possible implementation, the memory 1201 can exist independently of the processor 1202. The memory 1201 can be connected to the processor 1202 via a bus 1204 to store instructions or program codes. When the processor 1202 calls and executes the instructions or program codes stored in the memory 1201, the communication method provided in the embodiments of the present disclosure can be implemented.

[0169] In another possible implementation, the memory 1201 may also be integrated with the processor 1202 .

[0170] Bus 1204 can be an Extended Industry Standard Architecture (EISA) bus, etc. Bus 1204 can be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, FIG12 shows only one thick line, but this does not mean that there is only one bus or only one type of bus.

[0171] Some embodiments of the present disclosure provide a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium), which stores computer program instructions. When the computer program instructions are executed on a computer, the computer executes the communication method described in any of the above embodiments.

[0172] Exemplarily, the above-mentioned computer-readable storage media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes, etc.), optical disks (e.g., compact disks (CDs), digital versatile disks (DVDs), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memories (EPROMs), cards, sticks, or key drives, etc.). The various computer-readable storage media described in the present disclosure may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0173] An embodiment of the present disclosure provides a computer program product comprising instructions. When the computer program product is run on a computer, the computer is enabled to execute the communication method described in any one of the above embodiments.

[0174] The above is only a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or replacements within the technical scope disclosed in the present 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 communication method, applied to a first node, the method comprising: Generate configuration information of a first reference signal; wherein the configuration information includes antenna description information of the first reference signal; the antenna description information is used to indicate a mapping relationship between N antennas of the second node and X antennas used by the second node to transmit the first reference signal; N is greater than or equal to 2, and N is a positive integer; X is less than or equal to N, and X is a positive integer; The configuration information is sent.

2. The method according to claim 1, wherein: Frequency domain resources used by Z antennas among the X antennas when transmitting the first reference signal are less than or equal to frequency domain resources used by other XZ antennas when transmitting the first reference signal, and Z is less than or equal to X, and is a positive integer.

3. The method according to claim 1, wherein: The time domain resources used by Z antennas among the X antennas when transmitting the first reference signal are less than or equal to the time domain resources used by the other XZ antennas when transmitting the first reference signal, and Z is less than or equal to X, and is a positive integer.

4. The method according to claim 1, wherein: The transmission resources used by Z antennas among the X antennas when transmitting the first reference signal are less than or equal to the transmission resources used by the other XZ antennas when transmitting the first reference signal; wherein Z is less than or equal to X, and Z is a positive integer; the transmission resources include frequency domain resources and time domain resources.

5. The method according to claim 1, wherein: The transmission power used by Z antennas among the X antennas when transmitting the first reference signal is less than or equal to the transmission power used by the other XZ antennas when transmitting the first reference signal, and Z is less than or equal to X, and Z is a positive integer.

6. The method according to claim 1, wherein: The first reference signal transmitted by at least one of the X antennas is generated in a first sequence generation manner, and the first reference signal transmitted by at least one antenna is generated in a second sequence generation manner.

7. The method according to claim 1, wherein: The method further comprises: In a case where Z antennas among the X antennas fail to transmit the first reference signal, receiving the first reference signal retransmitted by the second node using the Z antennas, where Z is less than or equal to X and is a positive integer.

8. The method according to claim 1, wherein: When at least one of the X antennas transmits the first reference signal, the second reference signal is used to calculate the path loss; when at least one of the X antennas transmits the first reference signal, the third reference signal is used to calculate the path loss.

9. The method according to any one of claims 1 to 8, wherein: The first reference signal comprises a sounding reference signal.

10. The method according to claim 1, wherein: The configuration information further includes at least one of the following: priority information of the first reference signal, resource information of the first reference signal, sequence information of the first reference signal, and power information of the first reference signal.

11. The method according to claim 10, wherein: The priority information includes at least one of the following: a priority relationship between the first reference signal and a signal transmitted on a physical uplink control channel; A priority relationship between the first reference signal and the demodulation reference signal; The priority relationship between the first reference signal and the phase tracking signal; Priority relationships between multiple types of first reference signals.

12. The method according to claim 1, wherein: The method further comprises: Receive antenna configuration information of the second node sent by the second node.

13. The method according to claim 12, wherein: The antenna configuration information includes at least one of the following: an implementation method of the antenna, location information of the antenna, a topological structure of the antenna, and a material of the antenna.

14. The method according to claim 1, wherein: The method further comprises: Receive the recommended antenna description information sent by the second node.

15. A communication method, applied to a second node, the method comprising: Receive configuration information of a first reference signal; wherein the configuration information includes antenna description information of the first reference signal; the antenna description information is used to indicate a mapping relationship between N antennas of the second node and X antennas used by the second node to transmit the first reference signal; N is greater than or equal to 2, and N is a positive integer; X is less than or equal to N, and X is a positive integer; Based on the configuration information, the first reference signal is transmitted.

16. The method according to claim 15, wherein: Frequency domain resources used by Z antennas among the X antennas when transmitting the first reference signal are less than or equal to frequency domain resources used by other XZ antennas when transmitting the first reference signal, and Z is less than or equal to X, and is a positive integer.

17. The method according to claim 15, wherein: The time domain resources used by Z antennas among the X antennas when transmitting the first reference signal are less than or equal to the time domain resources used by the other XZ antennas when transmitting the first reference signal, and Z is less than or equal to X, and is a positive integer.

18. The method according to claim 15, wherein: The transmission resources used by Z antennas among the X antennas when transmitting the first reference signal are less than or equal to the transmission resources used by the other XZ antennas when transmitting the first reference signal; wherein Z is less than or equal to X, and Z is a positive integer; the transmission resources include frequency domain resources and time domain resources.

19. The method according to claim 15, wherein: The transmission power used by Z antennas among the X antennas when transmitting the first reference signal is less than or equal to the transmission power used by the other XZ antennas when transmitting the first reference signal, and Z is less than or equal to X, and Z is a positive integer.

20. The method according to claim 15, wherein: The first reference signal transmitted by at least one of the X antennas is generated in a first sequence generation manner, and the first reference signal transmitted by at least one antenna is generated in a second sequence generation manner.

21. The method according to claim 15, wherein: The method further comprises: When Z antennas among the X antennas fail to transmit the first reference signal, the Z antennas are used to retransmit the first reference signal, where Z is less than or equal to X and is a positive integer.

22. The method according to claim 15, wherein: When at least one of the X antennas transmits the first reference signal, the second reference signal is used to calculate the path loss; when at least one of the X antennas transmits the first reference signal, the third reference signal is used to calculate the path loss.

23. The method according to any one of claims 15 to 22, wherein: The first reference signal comprises a sounding reference signal.

24. The method according to claim 15, wherein: The configuration information further includes at least one of the following: priority information of the first reference signal, resource information of the first reference signal, sequence information of the first reference signal, and power information of the first reference signal.

25. The method according to claim 24, wherein: The priority information includes at least one of the following: a priority relationship between the first reference signal and a signal transmitted on a physical uplink control channel; A priority relationship between the first reference signal and the demodulation reference signal; The priority relationship between the first reference signal and the phase tracking signal; Priority relationships between multiple types of first reference signals.

26. The method of claim 15, wherein: The method further comprises: Send antenna configuration information of the second node.

27. The method according to claim 26, wherein: The antenna configuration information includes at least one of the following: an implementation method of the antenna, location information of the antenna, a topological structure of the antenna, and a material of the antenna.

28. The method of claim 15, wherein: The method further comprises: Sends a suggested antenna description.

29. A communication device, comprising a processor, wherein when the processor executes a computer program, the processor implements the communication method according to any one of claims 1 to 14, or implements the communication method according to any one of claims 15 to 28.

30. A computer-readable storage medium comprising computer instructions; wherein: When the computer instructions are executed, the communication method according to any one of claims 1 to 14 is implemented, or the communication method according to any one of claims 15 to 28 is implemented.

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