Communication method and device and storage medium

Abstract

The embodiment of the invention provides a communication method and device and a storage medium, relates to the technical field of communication, and is used for reducing resource overhead of transmission of reference signals. The communication method comprises the following steps: generating configuration information of a first reference signal; sending 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 relation between N antennas of the second node and X antennas, used for transmitting the first reference signal, of the second node; n is greater than or equal to 2, and N is a positive integer; x is smaller than or equal to N, and X is a positive integer.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a communication method, device and storage medium. Background Art

[0002] In traditional communication systems, the antenna transceiver capabilities of terminals are not matched. For example, a terminal can receive reference signals on 8 receiving antennas at the same time, but can only send reference signals on 2 transmitting antennas at a time, which means that the terminal needs to use different transmitting antennas to send reference signals at 4 different times in order for the base station to obtain complete channel information, resulting in high resource overhead.

[0003] Therefore, how to reduce the resource overhead of transmitting reference signals is an urgent problem to be solved. Summary of the invention

[0004] Embodiments of the present disclosure provide a communication method, an apparatus, and a storage medium for reducing resource overhead for transmitting a reference signal.

[0005] In a first aspect, a communication method is provided, which is applied to a first node and includes:

[0006] 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;

[0007] Send configuration information.

[0008] In a second aspect, another communication method is provided, which is applied to a second node and includes:

[0009] 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;

[0010] Based on the configuration information, a first reference signal is transmitted.

[0011] According to a third aspect, a communication device is provided, including:

[0012] A processing module, configured to 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;

[0013] The communication module is used to send configuration information.

[0014] In a fourth aspect, another communication device is provided, comprising:

[0015] A communication module, 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 N is a positive integer; X is less than or equal to N, and X is a positive integer;

[0016] The processing module is used to transmit a first reference signal based on the configuration information.

[0017] In a fifth aspect, a communication device is provided, comprising a processor, wherein the processor implements the communication method of the first aspect or the communication method of the second aspect when executing a computer program.

[0018] In a sixth aspect, a computer-readable storage medium is provided, the computer-readable storage medium comprising 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.

[0019] In an embodiment of the present disclosure, 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. Among them, 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 an antenna for transmitting 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present disclosure, the drawings required for use in some embodiments of the present disclosure will be briefly introduced below. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure, and a person skilled in the art can also obtain other drawings based on these drawings.

[0021] Figure 1 A schematic diagram of the structure of a transceiver antenna of a terminal provided in an embodiment of the present disclosure;

[0022] Figure 2 A schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure;

[0023] Figure 3 A flow chart of a communication method provided by an embodiment of the present disclosure;

[0024] Figure 4 A schematic diagram of time domain overlap of a first reference signal provided in an embodiment of the present disclosure;

[0025] Figure 5 A flowchart of another communication method provided by an embodiment of the present disclosure;

[0026] Figure 6 A schematic diagram of the structure of a transceiver antenna of a terminal provided in an embodiment of the present disclosure;

[0027] Figure 7 A schematic diagram of a transmission time of a sounding reference signal provided in an embodiment of the present disclosure;

[0028] Figure 8 A schematic diagram of the structure of a transceiver antenna of another terminal provided in an embodiment of the present disclosure;

[0029] Fig. 9 A schematic diagram of another transmission time of a sounding reference signal provided in an embodiment of the present disclosure;

[0030] Fig.10 A schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure;

[0031] Fig.11 A schematic diagram of the structure of another communication device provided in an embodiment of the present disclosure;

[0032] Fig.12 A schematic diagram of the structure of another communication device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0033] The following will be combined with the 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 described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0034] 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 three relationships may exist. 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 "plurality" means two or more. The words "first", "second", etc. do not limit the quantity and execution order, and the words "first", "second", etc. do not limit them to be different.

[0035] It should be noted that in the present disclosure, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the present disclosure should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0036] As described in the background technology, the antenna transceiver capabilities of the terminal are not matched, 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 so that the base station can obtain complete channel information.

[0037] For example, Figure 1 As shown, taking the example that the terminal can only use one transmitting antenna to send a reference signal each time and can use eight receiving antennas to receive the reference signal, the configuration of the above terminal is also described as 1 transmit 8 receive, 1T8R, etc. Figure 1 The terminal shown has 8 transmit antennas, 8 receive antennas, 1 transmit RF channel, and 8 receive RF channels. This means that the terminal can only use 1 transmit antenna to send a reference signal each time. If the base station obtains complete channel information, the terminal needs to use different transmit antennas to send reference signals 8 times. In the above transmission reference process, the resource overhead is large and the transmission efficiency is low.

[0038] 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. Among them, 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.

[0039] The communication method provided by the present disclosure can be applied to Figure 2 In the communication system shown, Figure 2 FIG. 1 is a schematic diagram showing an architecture of a communication system provided by an embodiment of the present disclosure. Figure 2 As shown, the communication system includes a first node 10 and a second node 20 .

[0040] In a wireless communication scenario, the first node 10 communicates with the second node 20 through a wireless channel. For example, the first node 10 is a base station, the second node 20 is a terminal, and the base station and the terminal communicate through a wireless channel. For another example, the first node 10 is a terminal, the second node 20 is a wireless router, and the wireless router communicates with the terminal through a wireless channel. For another example, the first node 10 is a first base station, the second node 20 is a second base station, and the first base station and the second base station communicate through a wireless channel. For another example, the first node 10 is a first terminal, the second node 20 is a second terminal, and the first terminal and the second terminal communicate through a wireless channel. For another example, the first node 10 is a repeater, the second node 20 is a base station, and the base station and the repeater communicate through a wireless channel. For another example, the first node 10 is a terminal, the second node 20 is a repeater, and the repeater and the terminal communicate through a wireless channel. For another example, the first node 10 is a first repeater, the second node 20 is a second repeater, and the first repeater and the second repeater communicate through 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 the base station communicate through 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 the satellite communicate through a wireless channel. For another example, the first node 10 is a terminal, the second node 20 is a satellite, and the satellite and the terminal communicate through a wireless channel. For another example, the first node 10 is a satellite, the second node 20 is a terminal, and the terminal and the satellite communicate through 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 the ground device communicate through 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 aircraft and the second aircraft communicate through a wireless channel.

[0041] In the embodiments of the present disclosure, the first node 10 is mainly described by taking the first node 10 as a base station and the second node 20 as a terminal as an example.

[0042] In some embodiments, the first node 10 is used to provide wireless access services for multiple terminals. Specifically, a base station provides a service coverage area (also called a cell). Terminals entering the area can communicate with the base station through wireless signals to receive the wireless access services provided by the base station.

[0043] 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.

[0044] In some embodiments, the second node 20 may be a device with wireless transceiver function, which may be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; may also be deployed on the water surface (such as a ship, etc.); may also be deployed in the air (such as an airplane, a balloon, and a satellite, etc.). The terminal may be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, 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, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. The embodiments of the present disclosure do not limit the application scenarios. A 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.

[0045] It should be noted that Figure 2 This is just an exemplary framework diagram. Figure 2 The number of devices included in the Figure 2 In addition to the devices shown, the communication system may also include other devices, such as core network devices.

[0046] 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.

[0047] Figure 3 A flow chart of a communication method provided by the present disclosure is shown as follows: Figure 3 As shown, the communication method is applied to the first node and includes the following steps:

[0048] S101. Generate configuration information of a first reference signal.

[0049] In some embodiments, when the first node needs to obtain channel information between the first node and the second node, the configuration information of the first reference signal starts to be generated.

[0050] 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, and in the embodiment of the present disclosure, the second node needs to transmit the first reference signal based on the configuration information of the first reference signal. Therefore, when the first node needs to obtain the information of the channel between it and the second node, it starts to generate the configuration information of the first reference signal, so that the second node transmits the first reference signal based on the configuration information of the first reference signal, and further enables the first node to obtain the channel information between it and the second node based on the first reference signal.

[0051] In some embodiments, the first node receives antenna configuration information of the second node sent by the second node, so as to generate configuration information of the first reference signal according to the antenna configuration information.

[0052] 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.

[0053] 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.

[0054] For example, Figure 1 The terminal shown is the second node as an example, the N antennas of the second node are Figure 1 The 8 transmitting antennas of the terminal in the middle, the X antennas of the second node for transmitting the first reference signal, that is, Figure 1The antenna actually used by the terminal when transmitting the first reference signal.

[0055] In some embodiments, the first node receives the suggested antenna description information sent by the second node to generate antenna description information of the first reference signal according to the suggested antenna description information.

[0056] 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.

[0057] Exemplarily, the antenna description information includes the number of antennas and antenna serial 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 serial numbers are transmit antenna 1, transmit antenna 2, transmit antenna 3, and transmit antenna 4. After the second node receives the configuration information of the first reference signal sent by the first node, based on the antenna description information of the first reference signal in the configuration information, transmit antenna 1, transmit antenna 2, transmit antenna 3, and transmit antenna 4 are used to transmit the first reference signal.

[0058] Another exemplary example is Figure 1 Taking the terminal shown as the second node as an example, the configuration of the terminal is 1 receive and 8 transmit. When the terminal transmits the first reference signal, the terminal needs to use 8 antennas to transmit the first reference signal at different times. In the 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 antenna serial numbers are transmit antenna 1, transmit antenna 2, transmit antenna 3, and transmit antenna 4, when the terminal transmits the first reference signal, it only needs to use the above 4 transmit antennas to transmit the first reference signal at different times.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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 repeated in the following.

[0063] In this way, limited frequency domain resources can be effectively allocated to the transmitting antenna that transmits 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.

[0064] 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.

[0065] 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.

[0066] In this way, time domain resources can be reasonably allocated to the transmitting antenna that transmits the first reference signal, so that the second node can utilize the time domain resources more effectively. In the same time period, more first reference signals can be sent by allocating time domain resources, thereby improving the transmission efficiency of the first reference signal.

[0067] 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.

[0068] 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 according to the frequency domain channel device and time domain channel status corresponding to the transmitting antenna of the second node.

[0069] In this way, the transmission efficiency of the first reference signal can be improved more comprehensively. In the frequency domain, the utilization rate of the frequency domain resources can be improved by flexibly allocating the frequency domain resources. In the time domain, the utilization rate of the time domain resources can be improved by reasonably allocating the time domain resources.

[0070] 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.

[0071] 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.

[0072] In this way, by reasonably allocating the transmission power of the transmitting antenna that transmits the first reference signal, it is possible to improve the utilization rate of the transmission power, reduce interference between antennas, improve the transmission quality when transmitting the first reference signal, and reduce unnecessary consumption.

[0073] 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, and the first sequence generation mode is different from the second sequence generation mode.

[0074] 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 may be a pseudo-random Gold sequence generation method or a frequency modulation signal chirp sequence generation method.

[0075] It should be noted that the present disclosure does not limit the generation method of the first reference signal, and there are at least two generation methods for the X first reference signals transmitted in the X antennas. Exemplarily, taking X as 4 as an example, the generation method of the first reference signal transmitted by transmitting antenna 1 may be a first sequence generation method, the generation method of the first reference signal transmitted by transmitting antenna 2 may be a second sequence generation method, the generation method of the first reference signal transmitted by transmitting antenna 3 may be a third sequence generation method, and the generation method of the first reference signal transmitted by transmitting antenna 4 may be a 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.

[0076] In this way, by transmitting first reference signals of different generation sequences, diversified transmission can be achieved, thereby improving the coverage and anti-interference capability of the signal. In addition, first reference signals of different generation sequences can be transmitted through different paths during the transmission process, which helps to overcome interference between multiple first reference signals.

[0077] In some embodiments, when Z antennas out of X antennas fail to transmit the first reference signal, the first reference signal retransmitted by the second node using the Z antennas is received. In this way, retransmitting the first reference signal through the Z antennas of the second node can provide a redundant transmission path, help overcome the situation of initial transmission failure, and improve the reliability and robustness of the first reference signal.

[0078] In some embodiments, when at least one of the X antennas transmits the first reference signal, the second reference signal is used to calculate the path loss, and when at least one of the X antennas transmits the first reference signal, the third reference signal is used to calculate the path loss.

[0079] 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.

[0080] It should be noted that the present disclosure does not limit the reference signal used to calculate the path loss when transmitting the first reference signal. When X antennas transmit the first reference signal, there are at least two reference signals used to calculate the path loss. Exemplarily, taking X as 4 as an example, when transmitting antenna 1 transmits the first reference signal, CSI-RS is used to calculate the path loss, when transmitting antenna 3 transmits the first reference signal, PRS is used to calculate the path loss, when transmitting antenna 5 transmits the first reference signal, synchronization signal is used to calculate the path loss, and when transmitting antenna 7 transmits the first reference signal, DM-RS is used to calculate the path loss.

[0081] In this way, when the first reference signal is transmitted, 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.

[0082] In some embodiments, the first reference signal comprises a sounding reference signal.

[0083] The sounding reference signal (SRS) is used to measure the frequency domain information of the uplink channel, and then selectively schedule frequency domain resources according to the measurement results. The SRS can also be used to measure the downlink channel, and then perform downlink channel preprocessing according to the measurement results.

[0084] 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.

[0085] Among them, the priority information includes at least one of the following: the priority relationship between the first reference signal and the signal transmitted on the physical uplink control channel; the 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; the priority relationship between multiple types of first reference signals.

[0086] For example, Figure 4As shown, taking the first reference signal as a detection reference signal as an example, there is an overlapping area between the detection reference signal and other physical uplink channels or signals in the time domain orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM). The first node can determine the priority information of the detection reference signal according to the actual transmission demand, network load and service quality.

[0087] For example, the transmission priority of a sounding reference signal (periodic, semi-continuous, or non-periodic 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.

[0088] 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.

[0089] 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 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.

[0090] For another example, when the detection reference signal (periodic, semi-continuous, or non-periodic transmission) and the demodulation reference signal use different spatial domain filters (or different transmission beams), the transmission priority of the detection reference signal is lower than the transmission priority of the demodulation reference signal.

[0091] For another example, when the detection reference signal (periodic, semi-continuous, or non-periodic transmission) uses the same spatial domain filter as the demodulation reference signal (or the same transmission beam), the transmission priority of the detection reference signal is greater than the transmission priority of the demodulation reference signal.

[0092] For another example, the transmission priority of the sounding reference signal is lower than that of the phase tracking reference signal.

[0093] 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 greater than the transmission priority of the sounding reference signal used for the uplink data channel transmission type.

[0094] For another example, when the uplink load is greater than the downlink network load, the priority of the sounding reference signal used for the antenna switching type is lower than the transmission priority of the sounding reference signal used for uplink data channel transmission.

[0095] 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.

[0096] 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.

[0097] 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.

[0098] S102: Send configuration information.

[0099] 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.

[0100] In some other embodiments, when the second node needs to transmit the first reference signal, a configuration information request is sent to the first node to request the first node to send the 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.

[0101] In this way, the configuration information of the first reference signal is sent to the second node, so that the second node transmits the first reference signal based on the configuration information of the first reference signal. Among them, 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.

[0102] Figure 5 A flow chart of another communication method provided by the present disclosure is shown as follows: Figure 3 As shown, the communication method is applied to the second node, comprising the following steps:

[0103] S201. Receive configuration information of a first reference signal.

[0104] 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.

[0105] 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.

[0106] 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 capable of transmitting the first reference signal and X antennas of the second node used 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.

[0107] 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.

[0108] The recommended antenna description information is used to instruct the first node to generate antenna description information of the first reference signal based on the recommended antenna description information. Exemplarily, the recommended antenna description information can be antenna description information required by the terminal that conforms to its own antenna configuration information. For example, if the terminal is configured as 1 transmit and 8 receive, the antenna description information subsequently sent by the recommended base station is used to instruct the terminal to use transmit antenna 1, transmit antenna 2, transmit antenna 3, and transmit antenna 4 to transmit the first reference signal.

[0109] S202. Transmit a first reference signal based on the configuration information.

[0110] 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 N is a positive integer; X is less than or equal to N, and X is a positive integer.

[0111] When the second communication node uses X antennas to transmit the first reference signal, it can select at most Y antennas to simultaneously transmit the first reference signal.

[0112] 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. Figure 6 As shown, 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. Figure 7As shown, taking the first reference signal as the sounding reference signal as an example, the terminal transmits the sounding reference signal based on the configuration information, which can be specifically described as: the terminal uses transmitting antenna 1 to transmit the sounding reference signal for the first time, the terminal uses transmitting antenna 3 to transmit the sounding reference signal for the second time, the terminal uses transmitting antenna 5 to transmit the sounding reference signal for the third time, and the terminal uses transmitting antenna 7 to transmit the sounding reference signal for the fourth time. At this time, N is 8, X is 4, and Y is 1.

[0113] As another example, take the terminal configuration as 2 transmit and 8 receive. Figure 8 As shown, 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. Fig. 9 As shown, taking the first reference signal as the sounding reference signal as an example, the terminal transmits the sounding reference signal based on the configuration information, which can be specifically described as: the terminal uses transmitting antenna 1 and transmitting antenna 3 to transmit the sounding reference signal for the first time, and the terminal uses transmitting antenna 5 and transmitting antenna 7 to transmit the sounding reference signal for the second time. At this time, N is 8, X is 4, and Y is 2.

[0114] 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.

[0115] Exemplarily, the frequency domain resource may be a subcarrier. Figure 6 Taking the terminal shown as an example, if the first node knows that the frequency domain channel corresponding to the transmitting antenna 1 is relatively flat according to the frequency domain channel situation, the second node allocates 20 subcarriers for the first reference signal transmitted by the transmitting antenna 1, and allocates 40 subcarriers for the second reference signals transmitted by the transmitting antenna 3, the transmitting antenna 5 and the transmitting antenna 7, at this time, X is 4 and Z is 1. If the first node knows that the frequency domain channels corresponding to the transmitting antenna 1 and the transmitting antenna 5 are relatively flat according to the frequency domain channel situation, the second node allocates 20 subcarriers for the first reference signals transmitted by the transmitting antenna 1 and the transmitting antenna 5, and allocates 40 subcarriers for the second reference signals transmitted by the transmitting antenna 3 and the transmitting antenna 7, at this time, X is 4 and Z is 2.

[0116] 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.

[0117] Exemplarily, the time domain resource may be an OFDM symbol. Figure 6Taking the terminal shown as an example, if the first node knows that the time domain channel corresponding to transmitting antenna 1 is relatively flat according to the time domain channel situation, the second node allocates 1 OFDM symbol to the first reference signal transmitted by transmitting antenna 1, and allocates 2 OFDM symbols to the second reference signals transmitted by transmitting antenna 3, transmitting antenna 5 and transmitting antenna 7 respectively. At this time, X is 4 and Z is 1.

[0118] 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.

[0119] 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.

[0120] Exemplarily, the transmission resources include frequency domain resources and time domain resources. The frequency domain resources may be subcarriers, and the time domain resources may be OFDM symbols. Figure 6 Taking the terminal shown as an example, if the first node knows that the channel corresponding to the transmitting antenna 1 is relatively flat according to the channel situation, the second node allocates 1 OFDM symbol (there are 20 subcarriers on 1 OFDM symbol) to the first reference signal transmitted by the transmitting antenna 1, and allocates 2 OFDM symbols (there are 20 subcarriers on 1 OFDM symbol) to the second reference signals transmitted by the transmitting antenna 3, the transmitting antenna 5 and the transmitting antenna 7, respectively. In this case, X is 4 and Z is 1. If the first node knows that the channels corresponding to the transmitting antenna 1 and the transmitting antenna 5 are relatively flat according to the channel situation, the second node allocates 1 OFDM symbol (there are 20 subcarriers on 1 OFDM symbol) to the first reference signals transmitted by the transmitting antenna 1 and the transmitting antenna 5, and allocates 2 OFDM symbols (there are 20 subcarriers on 1 OFDM symbol) to the second reference signals transmitted by the transmitting antenna 3 and the transmitting antenna 7, respectively. In this case, X is 4 and Z is 2.

[0121] 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.

[0122] For example, Figure 6 Taking the terminal shown as an example, the first node determines that the transmission power required by transmitting antenna 1 is lower based on the capabilities of the four transmitting antennas, the transmission purpose and the transmission channel. Therefore, the second node allocates a transmission power to transmitting antenna 1 that is lower than that of transmitting antenna 3, transmitting antenna 5 and transmitting antenna 7. At this time, X is 4 and Z is 1.

[0123] In some embodiments, the first reference signal transmitted by at least one antenna among 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.

[0124] The first sequence generation method is different from the second sequence generation method.

[0125] Exemplarily, the first sequence may be a pseudo-random Gold sequence or a frequency modulation signal chirp sequence. The second sequence may be a pseudo-random Gold sequence or a frequency modulation signal chirp sequence. Figure 6 Taking the terminal shown as an example, the second node uses the first reference signal of the first sequence generation mode transmitted by the transmitting antenna 1, the first reference signal of the second sequence generation mode transmitted by the transmitting antenna 3, the first reference signal of the fourth sequence generation mode transmitted by the transmitting antenna 5, and the first reference signal of the fourth sequence generation mode transmitted by the transmitting antenna 7. The first sequence generation mode, the second sequence generation mode, the third sequence generation mode, and the fourth sequence generation mode are all different.

[0126] 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.

[0127] For example, Figure 6 Taking the terminal shown as an example, when the second node uses transmit antenna 1 to transmit the first reference signal, the uplink OFDM symbol is configured as a downlink OFDM symbol by the second node, resulting in a transmission failure. When the first reference signal is transmitted using transmit antenna 3, the uplink OFDM symbol is occupied by other channels, resulting in a transmission failure. The second node then uses transmit antenna 1 and transmit antenna 3 to retransmit the first reference signal. At this time, X is 4 and Z is 2.

[0128] 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 also be determined by negotiation between the first node and the second node.

[0129] In some embodiments, when at least one of the X antennas transmits the first reference signal, the second reference signal is used to calculate the path loss, and when at least one of the X antennas transmits the first reference signal, the third reference signal is used to calculate the path loss.

[0130] The second reference signal is different from the third reference signal.

[0131] For example, Figure 6Taking the terminal shown 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 transmitting antenna 3 is used to transmit the first reference signal, DM-RS is used to calculate the path loss. When transmitting antenna 5 is used to transmit the first reference signal, the synchronization signal is used to calculate the path loss. When transmitting antenna 7 is used to transmit the first reference signal, PRS is used to calculate the path loss.

[0132] In some embodiments, the first reference signal comprises a sounding reference signal.

[0133] 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.

[0134] In some embodiments, the priority information includes at least one of the following: a priority relationship between a first reference signal and a signal transmitted on a physical uplink control channel; a priority relationship between a first reference signal and a demodulation reference signal; a priority relationship between a first reference signal and a phase tracking signal; and a priority relationship between multiple types of first reference signals.

[0135] 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.

[0136] 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.

[0137] 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.

[0138] 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. Among them, 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.

[0139] 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. Those skilled in the art should easily realize that, in combination with the algorithm steps of each example 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.

[0140] The embodiments of the present disclosure may divide the functional modules of the communication device according to the above method embodiments. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one functional module. The above integrated modules may 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 function division. There may be other division methods in actual implementation. The following is an example of dividing each functional module corresponding to each function.

[0141] Fig.10 1 is a schematic diagram of a communication device applied to a first node provided in an embodiment of the present disclosure. The communication device 100 can execute the communication method provided in the above method embodiment. Fig.10 As shown, the communication device 100 includes a processing module 1001 and a communication module 1002 .

[0142] The processing module 1001 is configured to 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;

[0143] The communication module 1002 is used to send configuration information.

[0144] 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 other XZ antennas when transmitting the first reference signal, Z is less than or equal to X, and Z is a positive integer.

[0145] 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 other XZ antennas when transmitting the first reference signal, Z is less than or equal to X, and Z is a positive integer.

[0146] 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.

[0147] 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, Z is less than or equal to X, and Z is a positive integer.

[0148] In some embodiments, the first reference signal transmitted by at least one antenna among 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.

[0149] 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.

[0150] In some embodiments, when at least one of the X antennas transmits the first reference signal, the second reference signal is used to calculate the path loss, and when at least one of the X antennas transmits the first reference signal, the third reference signal is used to calculate the path loss.

[0151] In some embodiments, the first reference signal comprises a sounding reference signal.

[0152] 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.

[0153] In some embodiments, the priority information includes at least one of the following: a priority relationship between a first reference signal and a signal transmitted on a physical uplink control channel; a priority relationship between a first reference signal and a demodulation reference signal; a priority relationship between a first reference signal and a phase tracking signal; and a priority relationship between multiple types of first reference signals.

[0154] In some embodiments, the communication module 1002 is further used to receive antenna configuration information of the second node sent by the second node.

[0155] In some embodiments, 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.

[0156] In some embodiments, the communication module 1002 is further configured to receive recommended antenna description information sent by the second node.

[0157] Fig.11 1 is a schematic diagram of a communication device applied to a second node provided in an embodiment of the present disclosure. The communication device 110 can execute the communication method provided in the above method embodiment. Fig.11 As shown, the communication device 110 includes a communication module 1101 and a processing module 1102 .

[0158] The 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 N is a positive integer; X is less than or equal to N, and X is a positive integer;

[0159] The processing module 1102 is configured to transmit a first reference signal based on the configuration information.

[0160] 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 other XZ antennas when transmitting the first reference signal, Z is less than or equal to X, and Z is a positive integer.

[0161] 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 other XZ antennas when transmitting the first reference signal, Z is less than or equal to X, and Z is a positive integer.

[0162] 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.

[0163] 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, Z is less than or equal to X, and Z is a positive integer.

[0164] In some embodiments, the first reference signal transmitted by at least one antenna among 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.

[0165] 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.

[0166] In some embodiments, when at least one of the X antennas transmits the first reference signal, the second reference signal is used to calculate the path loss, and when at least one of the X antennas transmits the first reference signal, the third reference signal is used to calculate the path loss.

[0167] In some embodiments, the first reference signal comprises a sounding reference signal.

[0168] 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.

[0169] In some embodiments, the priority information includes at least one of the following: a priority relationship between a first reference signal and a signal transmitted on a physical uplink control channel; a priority relationship between a first reference signal and a demodulation reference signal; a priority relationship between a first reference signal and a phase tracking signal; and a priority relationship between multiple types of first reference signals.

[0170] In some embodiments, the communication module 1101 is further used to send antenna configuration information of the second node.

[0171] In some embodiments, 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.

[0172] In some embodiments, suggested antenna description information is sent.

[0173] In the case of implementing the functions of the above-mentioned integrated modules in the form of hardware, the embodiments of the present disclosure provide another possible structure of the communication device involved in the above-mentioned embodiments. Fig.12 As shown, the communication device 120 includes: a processor 1202 and a bus 1204. Optionally, the communication device may further include a memory 1201; optionally, the communication device may further include a communication interface 1203.

[0174] The processor 1202 may be a processor that implements or executes various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure. The 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 devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure. The processor 1202 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0175] The communication interface 1203 is used to connect with other devices via a communication network, such as Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0176] The memory 1201 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a 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.

[0177] As a possible implementation, the memory 1201 may exist independently of the processor 1202, and the memory 1201 may 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 embodiment of the present disclosure can be implemented.

[0178] In another possible implementation, the memory 1201 may also be integrated with the processor 1202 .

[0179] The bus 1204 may be an extended industry standard architecture (EISA) bus, etc. The bus 1204 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig.12 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0180] Some embodiments of the present disclosure provide a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium), in which computer program instructions are stored. When the computer program instructions are executed on a computer, the computer executes the communication method described in any of the above embodiments.

[0181] 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 (CD), digital versatile disks (DVD), etc.), smart cards and flash memory devices (e.g., erasable programmable read-only memory (EPROM), 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.

[0182] An embodiment of the present disclosure provides a computer program product including 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.

[0183] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A communication method, It is characterized in that Applied to the first node, the method comprises: 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, It is characterized in that 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, It is characterized in that 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, It is characterized in that 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, It is characterized in that 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, It is characterized in that 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, It is characterized in that 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, It is characterized in that 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, It is characterized in that The first reference signal comprises a sounding reference signal.

10. The method according to claim 1, It is characterized in that 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, It is characterized in that 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, It is characterized in that The method further comprises: Receive antenna configuration information of the second node sent by the second node.

13. The method according to claim 12, It is characterized in that 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, It is characterized in that The method further comprises: Receive the recommended antenna description information sent by the second node.

15. A communication method, It is characterized in that Applied to the second node, the method comprises: 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, It is characterized in that 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, It is characterized in that 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, It is characterized in that 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, It is characterized in that Among the X antennas, the transmission power used by Z antennas when transmitting the first reference signal is less than or equal to the transmission power used by the other X - Z antennas when transmitting the first reference signal, where Z is less than or equal to X and Z is a positive integer.

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

21. The method according to claim 15, wherein, the method further includes: in the case where the transmission of the first reference signal by Z antennas among the X antennas fails, using the Z antennas to re - transmit the first reference signal, where Z is less than or equal to X and Z is a positive integer.

22. The method according to claim 15, wherein, at least one antenna among the X antennas calculates the path loss using a second reference signal when transmitting the first reference signal, and at least one antenna calculates the path loss using a third reference signal when transmitting the first reference signal.

23. The method according to any one of claims 15 - 22, wherein, the first reference signal includes a sounding reference signal.

24. The method according to claim 15, wherein, the configuration information further includes at least one of the following: the priority information of the first reference signal, the resource information of the first reference signal, the sequence information of the first reference signal, and the 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: the priority relationship between the first reference signal and the signal transmitted on the physical uplink control channel; the 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; the priority relationship between multiple types of first reference signals.

26. The method according to claim 15, wherein, the method further includes: sending the 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: the implementation method of the antenna, the position information of the antenna, the topological structure of the antenna, the material of the antenna.

28. The method according to claim 15, wherein, the method further includes: sending the proposed antenna description information.

29. A communication device, wherein, it includes a processor, and when the processor executes a computer program, it 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, wherein, the computer - readable storage medium includes computer instructions; wherein, when the computer instructions are executed, it 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.

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