Reference signal sending method and device, equipment and storage medium

Abstract

Disclosed are a reference signal sending method, apparatus and device, and a storage medium, the method comprising: a base station sending a first reference signal and a second reference signal; wherein the first reference signal and the second reference signal have a relationship of a first QCL type; in the relationship of the first QCL type, the beam of the second reference signal takes the beam of the first reference signal as an incident beam of first network equipment; the first reference signal and the second reference signal are used for a first terminal to determine channel information reflected by the first network device.

Description

Technical Field

[0001] This application relates to the field of wireless technologies, and in particular, to a method, apparatus, device, and storage medium for transmitting reference signals. Background Art

[0002] At present, by deploying intermediate nodes in the network to enhance the forwarding of base station signals, the network coverage can be improved. In actual applications, terminals within the coverage range of the intermediate node will simultaneously receive signals from the base station and the RIS reflection. The terminal cannot distinguish the two channels, so it is impossible to optimize the reflection coefficient for capacity improvement for the intermediate node, which affects the communication performance. Summary of the Invention

[0003] To solve the related technical problems, embodiments of this application provide a method, apparatus, device, and storage medium for transmitting reference signals.

[0004] The technical solution of the embodiments of this application is implemented as follows:

[0005] Embodiments of this application provide a method for transmitting reference signals, which is applied to a base station. The method includes:

[0006] Transmit a first reference signal and a second reference signal; where

[0007] The first reference signal and the second reference signal have a relationship of the first Quasi Co-Location (QCL) type; in the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of the first network device; the first reference signal and the second reference signal are used for a first terminal to determine the channel information reflected by the first network device.

[0008] Wherein, in the above solution, before transmitting the first reference signal and the second reference signal, the method further includes:

[0009] Send first information to the first terminal and the first network device; where

[0010] The first information includes the resource configuration of the first reference signal and the second reference signal; the first information is used to determine that the first reference signal and the second reference signal have the relationship of the first QCL type; the first terminal represents a terminal located within the signal coverage range of the first network device and having an expanded channel condition.

[0011] In the above solution, before sending the first information to the first terminal and the first network device, the method further includes:

[0012] Configure reference signal resources and reporting configurations corresponding to N reference signals for each of at least one terminal; the at least one terminal represents a terminal located within the signal coverage range of a synchronization signal block (SSB) where the first network device is located and having an expanded channel condition; the SSB where the first network device is located has a relationship of the first QCL type with each of the N reference signals, or, the channel state information reference signal (CSI-RS) having a relationship of QCL type D with the SSB has a relationship of the first QCL type with each of the N reference signals; the N is a positive integer greater than 1;

[0013] Receive measurement results reported by each of the at least one terminal; the measurement results include a first index corresponding to a third reference signal and the reference signal receiving power (RSRP) of the third reference signal, and include a second index corresponding to each of the L-1 fourth reference signals among the L-1 fourth reference signals and the RSRP difference value; the third reference signal represents the reference signal with the strongest RSRP measured by the terminal reporting the corresponding measurement result among the N reference signals; the L-1 fourth reference signals represent the L-1 reference signals with the second strongest RSRP measured by the terminal reporting the corresponding measurement result among the N reference signals; the L is greater than 1 and less than or equal to N; the RSRP difference value represents the RSRP strength difference between the corresponding fourth reference signal and the fourth reference signal adjacent in RSRP strength;

[0014] Determine as the first terminal a terminal in which the first RSRP in the measurement results is greater than a first set value and the RSRP difference values corresponding to the L-1 fourth reference signals are all greater than a second set value.

[0015] In the above solution, the first information is used to indicate:

[0016] The first reference signal has a relationship of QCL type D with the third reference signal, and / or receive the first reference signal using the beam direction for receiving the third reference signal; and,

[0017] The second reference signal has a relationship of QCL type D with the SSB where the first network device is located, or the second reference signal has a relationship of QCL type D with a fifth reference signal; the fifth reference signal represents the optimal downlink reference signal measured by the first terminal and having a relationship of QCL type D with the SSB where the first network device is located.

[0018] In the above solution, the method further includes:

[0019] After determining the first terminal, sending a first indication to the first network device; wherein,

[0020] The first indication is used to instruct the first network device to configure a first reflection coefficient; the first reflection coefficient corresponds to the beam direction of the third reference signal.

[0021] An embodiment of the present application further provides a method for sending a reference signal, which is applied to a first network device, and the method includes:

[0022] Receiving a first reference signal and a second reference signal sent by a base station; the first reference signal and the second reference signal have a relationship of a first QCL type; in the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of the first network device;

[0023] Using a default reflection coefficient on the resource of the first reference signal, and reflecting the second reference signal using the first reflection coefficient configured by the base station on the resource of the second reference signal; wherein,

[0024] The default reflection coefficient is characterized as a random phase or a spurious beam.

[0025] Wherein, in the above solution, the first network device includes a reflection surface or a relay device or a network intermediate device.

[0026] In the above solution, before receiving the first reference signal and the second reference signal sent by the base station, the method further includes:

[0027] Receiving a first piece of information sent by the base station; the first piece of information includes the resource configuration of the first reference signal and the second reference signal; the first piece of information is used to determine that the first reference signal and the second reference signal have the relationship of the first QCL type.

[0028] In the above solution, the method further includes:

[0029] Receiving a first indication from the base station; wherein,

[0030] The first indication is used to indicate that the first network device configures the first reflection coefficient; the first reflection coefficient corresponds to the beam direction of a third reference signal; the third reference signal represents the reference signal with the strongest RSRP measured by a first terminal among N reference signals transmitted by the base station; the SSB where the first network device is located or the channel state information reference signal CSI-RS having a QCL type D relationship with the SSB has a relationship of the first QCL type with each of the N reference signals; N is a positive integer greater than 1.

[0031] In the above solution, the first information is used to indicate:

[0032] The first reference signal and the third reference signal have a QCL type D relationship, and / or the first reference signal is received using the beam direction of the third reference signal; and,

[0033] The second reference signal and the SSB where the first network device is located have a QCL type D relationship, or the second reference signal and a fifth reference signal have a QCL type D relationship; the fifth reference signal represents the optimal downlink reference signal measured by the first terminal and having a QCL type D relationship with the SSB where the first network device is located.

[0034] An embodiment of this application further provides a method for obtaining channel information, which is applied to a first terminal. The method includes:

[0035] Receiving a first reference signal and a second reference signal sent by a base station; the first reference signal and the second reference signal have a relationship of a first QCL type; in the relationship of the first QCL type, the beam of the second reference signal is a beam reflected with the beam of the first reference signal as the incident beam of the first network device;

[0036] Obtaining first channel information based on the first reference signal; the first channel information represents the channel information that has not been reflected by the first network device;

[0037] Obtaining second channel information based on the second reference signal; the second channel information represents the superposition of the channel information reflected by the first network device and the channel information that has not been reflected by the first network device.

[0038] Wherein, in the above solution, the method further includes:

[0039] Determining the channel information reflected by the first network device according to the difference between the first channel information and the second channel information.

[0040] In the above solution, the method further includes:

[0041] Receive the first information sent by the base station; wherein,

[0042] The first information includes resource configurations of the first reference signal and the second reference signal; the first information is used to determine that the first reference signal and the second reference signal have a relationship of the first QCL type.

[0043] In the above solution, before receiving the first reference signal and the second reference signal sent by the base station, the method further includes:

[0044] Receive N reference signal resources configured by the base station and reporting configurations corresponding to each reference signal resource; the SSB where the first network device is located has a relationship of the first QCL type with each of the N reference signals, or the CSI-RS having a relationship of QCL type D with the SSB has a relationship of the first QCL type with each of the N reference signals; N is a positive integer greater than 1;

[0045] Receive N reference signals respectively sent by the base station through the N reference signal resources;

[0046] Report measurement results on the N reference signals; the measurement results include a first index corresponding to a third reference signal and the RSRP of the third reference signal, and include a second index and an RSRP difference value corresponding to each of L-1 fourth reference signals among the L-1 fourth reference signals; the third reference signal represents the reference signal with the strongest RSRP measured by the first terminal among the N reference signals; the L-1 fourth reference signals represent the L-1 reference signals with the second strongest RSRP measured by the first terminal among the N reference signals; L is greater than 1 and less than or equal to N; the RSRP difference value represents the RSRP intensity difference between the corresponding fourth reference signal and the fourth reference signal adjacent in RSRP intensity value.

[0047] An embodiment of the present application further provides a reference signal sending device, including:

[0048] A first sending unit, configured to send a first reference signal and a second reference signal; wherein,

[0049] The first reference signal and the second reference signal have a relationship of the first QCL type; in the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of the first network device; the first reference signal and the second reference signal are used for the first terminal to determine channel information reflected by the first network device.

[0050] The embodiment of the present application further provides a transmitting device for reference signals, including:

[0051] A first receiving unit, configured to receive a first reference signal and a second reference signal sent by a base station; the first reference signal and the second reference signal have a relationship of a first QCL type; in the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of a first network device;

[0052] A reflection unit, configured to use a default reflection coefficient on the resource of the first reference signal and use a first reflection coefficient configured by the base station to reflect the second reference signal on the resource of the second reference signal; wherein,

[0053] The default reflection coefficient is characterized by a random phase and / or a spurious beam.

[0054] The embodiment of the present application further provides an acquiring device for channel information, including:

[0055] A second receiving unit, configured to receive a first reference signal and a second reference signal sent by a base station; the first reference signal and the second reference signal have a relationship of a first QCL type; in the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of a first network device;

[0056] A first acquiring unit, configured to acquire first channel information based on the first reference signal; the first channel information characterizes the channel information that has not been reflected by the first network device;

[0057] A second acquiring unit, configured to acquire second channel information based on the second reference signal; the second channel information characterizes the superposition of the channel information reflected by the first network device and the channel information that has not been reflected by the first network device.

[0058] The embodiment of the present application further provides a base station, including: a first processor and a first communication interface; wherein,

[0059] The first communication interface is configured to send a first reference signal and a second reference signal; wherein,

[0060] The first reference signal and the second reference signal have a relationship of a first QCL type; in the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of a first network device; the first reference signal and the second reference signal are used for a first terminal to determine the channel information reflected by the first network device.

[0061] An embodiment of the present application further provides a first network device, including: a second processor and a second communication interface; wherein,

[0062] The second communication interface is configured to receive a first reference signal and a second reference signal sent by a base station; the first reference signal and the second reference signal have a relationship of a first QCL type; in the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of the first network device;

[0063] The second communication interface is further configured to use a default reflection coefficient on the resource of the first reference signal and reflect the second reference signal using a first reflection coefficient configured by the base station on the resource of the second reference signal; wherein,

[0064] The default reflection coefficient is characterized as a random phase or a spurious beam.

[0065] An embodiment of the present application further provides a first terminal, including: a third processor and a third communication interface; wherein,

[0066] The third communication interface is configured to receive a first reference signal and a second reference signal sent by a base station; the first reference signal and the second reference signal have a relationship of a first QCL type; in the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of the first network device;

[0067] A first obtaining unit is configured to obtain first channel information based on the first reference signal; the first channel information characterizes the channel information that has not been reflected by the first network device;

[0068] The third processor is configured to obtain first channel information based on the first reference signal and obtain second channel information based on the second reference signal; the first channel information characterizes the channel information that has not been reflected by the first network device; the second channel information characterizes the superposition of the channel information reflected by the first network device and the channel information that has not been reflected by the first network device.

[0069] An embodiment of the present application further provides a base station, which is characterized by including: a first processor and a first memory for storing a computer program that can run on the processor,

[0070] Wherein, when the first processor is used to run the computer program, it executes the steps of any of the above methods on the base station side.

[0071] An embodiment of the present application further provides a first network device, which is characterized by including: a second processor and a second memory for storing a computer program that can run on the processor,

[0072] Wherein, when the second processor is used to run the computer program, it executes the steps of any of the above methods on the first network device side.

[0073] An embodiment of the present application further provides a first terminal, which is characterized by including: a third processor and a third memory for storing a computer program capable of running on the processor,

[0074] Wherein, when the third processor is used to run the computer program, it executes the steps of any of the above methods on the first terminal side.

[0075] An embodiment of the present application further provides a storage medium, on which a computer program is stored, and is characterized in that when the computer program is executed by a processor, it implements the steps of any of the above methods on the base station side, or implements the steps of any of the above methods on the first network device side, or implements the steps of any of the above methods on the first terminal side.

[0076] In the method for sending a reference signal, the method for obtaining channel information, the device, the base station, the first network device, the terminal, and the storage medium provided by the embodiments of the present application, the base station sends a first reference signal and a second reference signal having a first QCL type relationship, wherein, in the first QCL type relationship, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of the first network device; as an intermediate node for communication between the base station and the terminal, the first network device uses a default reflection coefficient on the resource of the first reference signal, and uses a first reflection coefficient configured by the base station to reflect the second reference signal on the resource of the second reference signal; wherein, the default reflection coefficient is characterized as a random phase or a stray beam; the terminal obtains first channel information based on the first reference signal, that is, the channel information without being reflected by the first network device, and obtains second channel information based on the second reference signal, that is, the superposition of the channel information after being reflected by the first network device and the channel information without being reflected by the first network device. Based on the above solution, the terminal can determine the channel information after being reflected by the first network device. On this basis, it is possible to well optimize the reflection coefficient for capacity improvement for the first network device, effectively improving the communication performance. Description of the Drawings

[0077] Figure 1 It is a schematic diagram of an unobstructed low-frequency scenario applicable to the embodiments of the present application;

[0078] Figure 2 It is a schematic diagram of the implementation process of a method for sending a reference signal according to an embodiment of the present application;

[0079] Figure 3 It is a schematic diagram of the implementation process of another method for sending a reference signal according to an embodiment of the present application;

[0080] Figure 4 Schematic diagram of the implementation process of a method for obtaining channel information according to an embodiment of the present application;

[0081] Figure 5 Schematic diagram of an example of an unobstructed low-frequency scenario according to an application embodiment of the present application;

[0082] Figure 6 Schematic diagram of signal relationships in an unobstructed scenario according to an application embodiment of the present application;

[0083] Figure 7 Schematic diagram of signal relationships with the first QCL type in an unobstructed scenario according to an application embodiment of the present application;

[0084] Figure 8 Another schematic diagram of an example of an unobstructed low-frequency scenario according to an application embodiment of the present application;

[0085] Figure 9 Another schematic diagram of signal relationships in an unobstructed low-frequency scenario according to an application embodiment of the present application

[0086] Figure 10 Another schematic diagram of signal relationships with the first QCL type in an unobstructed low-frequency scenario according to an application embodiment of the present application;

[0087] Figure 11 Schematic diagram of the structure of a reference signal transmitting device according to an embodiment of the present application;

[0088] Figure 12 Another schematic diagram of the structure of a reference signal transmitting device according to an embodiment of the present application;

[0089] Figure 13 Schematic diagram of the structure of a channel information obtaining device according to an embodiment of the present application;

[0090] Figure 14 Schematic diagram of the base station structure according to an embodiment of the present application;

[0091] Figure 15 Schematic diagram of the structure of the first network device according to an embodiment of the present application;

[0092] Figure 16 Schematic diagram of the structure of the first terminal according to an embodiment of the present application. Detailed implementation manners

[0093] A Network Control Repeater (NCR) is used to amplify and forward radio frequency signals of a base station and / or a terminal; the intermediate node can also be a Reconfigurable Intelligence Surface (RIS) without a radio frequency source, which is used to reflect and converge the signals of the base station and / or the terminal by using a large number of passive controllable reflection units. Here, the intermediate node re-performs beamforming on the signals from the base station and / or the terminal to achieve a certain directional coverage of the blind area. In the initial access stage, the base station and the intermediate node perform beam scanning of the downlink reference signal, the terminal measures and selects a stronger beam and reports it to the base station, and subsequent data transmission is carried out on this basis.

[0094] At present, on the one hand, since the path loss of the link from the base station to the terminal through the RIS directional reflection is based on the product of the path losses of the two segments from the base station to the RIS and from the RIS to the terminal, and the RIS has no radio frequency source, it is difficult to offset the multiplicative path loss through array gain if the number of antenna elements does not reach a certain scale. Therefore, in the RIS-assisted communication system, compared with the link from the base station to the terminal through the RIS directional reflection, the link from the base station to the terminal without passing through the RIS directional reflection is shorter and the signal strength may be better. On the other hand, due to the existence of a radio frequency amplification unit in the NCR, the signal strength of the link from the base station to the terminal through the RIS directional reflection is generally better than that of the link from the base station to the terminal without passing through the RIS directional reflection. Therefore, in an unobstructed scenario, that is, an expansion scenario where there are both links passing through the RIS directional reflection and links not passing through the RIS directional reflection, the terminals within the RIS coverage area will receive signals from both the base station and the RIS reflection at the same time. The terminal cannot distinguish the two links, and it is impossible to optimize the reflection coefficient for capacity improvement for the RIS by using the superimposed channel information. Therefore, the communication performance is affected.

[0095] Based on this, in various embodiments of the present application, the base station transmits a first reference signal and a second reference signal having a relationship of a first QCL type. In the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of the first network device. As an intermediate node for communication between the base station and the terminal, the first network device uses a default reflection coefficient on the resources of the first reference signal and uses a first reflection coefficient configured by the base station to reflect the second reference signal on the resources of the second reference signal. Wherein, the default reflection coefficient is characterized as a random phase or a spurious beam. The terminal obtains first channel information based on the first reference signal, that is, the channel information without being reflected by the first network device, and obtains second channel information based on the second reference signal, that is, the superposition of the channel information reflected by the first network device and the channel information without being reflected by the first network device. Based on the above solution, the terminal can determine the channel information reflected by the first network device. On this basis, the reflection coefficient for capacity improvement can be well optimized for the first network device, effectively improving the communication performance.

[0096] The following further describes the present application in detail with reference to the accompanying drawings and embodiments.

[0097] First, it should be noted that in the embodiments of the present application, the first network device is an intermediate node for communication between the base station and the terminal, including a RIS without a radio frequency source, or a relay device or a network intermediate device with a radio frequency source, such as an NCR. Here, the first network device is configured with a controller for receiving and executing control instructions from the base station. This controller has the functions of a terminal and can reuse the initial access process of the terminal. Specifically, the base station periodically transmits an SSB burst set, including multiple time-division SSBs. Under certain frequencies and implementation conditions, different SSBs may correspond to different beam directions. The controller receives and detects SSBs on the synchronization grid according to a preset period, selects a suitable SSB, and initiates a random access process at the random access opportunity (RO, RACH Occasion) or preamble associated with the selected SSB. After the above initial access process, the base station knows the SSB index where the first network device is located and the corresponding beam direction. Usually, the deployment of the first network device is determined according to network optimization, the position is relatively fixed, and to ensure the reliability of the base station's control of the first network device and ensure that the link between the two is a line-of-sight (LOS, Line-of-Sight) path. Once the initial access is completed, the channel state between the base station and the first network device is known to the base station.

[0098] The unobstructed low-frequency scenarios applicable to the embodiments of the present application are as Figure 1As shown, the coverage beam (SSB) of the base station is relatively wide. Therefore, the first network device and the terminals within the coverage range of the first network device are located within the same SSB. That is, the terminals within the coverage range of the first network device almost simultaneously receive the signal directly transmitted by the base station and the signal transmitted by the base station and reflected by the first network device. For example, Figure 1 the terminal 2 in

[0099] almost simultaneously receives the signal directly transmitted by the base station and the signal transmitted by the base station and reflected by the first network device. Therefore, this scenario usually involves two links: 1. The link from the base station, reflected by the first network device, to the terminal; 2. The link from the base station directly to the terminal without passing through the first network device. The communication objective in this scenario is no longer to use the intermediate node for signal blind filling, but to use the intermediate node to further enhance the communication quality, such as the expansion transmission of multiple streams or multiple users.

[0100] Specifically, in the above scenario, the terminal has completed the initial access process through the base station and is in the connected state. In the embodiments of the present application, in order to exclude the influence of the first network device on the terminal's initial access, the first network device is in the default state, that is, configured with random phases and / or spurious beams. When the base station conducts service transmission with the terminal, the base station judges, based on parameters such as the channel quality reported by the terminal, that the current channel quality is good enough for the expansion transmission of multiple streams or multiple users, that is, the terminal has the channel conditions for expansion. Then, the base station judges whether the terminal is within the signal coverage range of the first network device. For the terminals within the coverage range of the first network device, additional reference signal resources and measurement configurations are performed. Through the measurement report results of the terminal for the reflected channel, the base station judges whether it is necessary to call the first network device to further improve the channel environment.

[0101] Combined with Figure 1 the scenario shown, in the embodiments of the present application, it is defined that there is a first QCL type relationship between the SSB where the first network device is located or the CSI-RS having a QCL-Type D relationship with this SSB, and the N downlink reference signals configured by the base station for RIS beam management. Exemplarily, this first QCL type relationship can be expressed as QCL-Type E.

[0102] In the embodiment of the present application, the base station needs to complete the steps in the following three stages to further determine whether it is necessary to optimize the reflection coefficient of the first network device to further improve the channel environment:

[0103] Stage 1: Confirm that the terminal has the channel conditions for capacity expansion;

[0104] Stage 2: Identify which terminals are within the signal coverage range of the first network device;

[0105] Stage 3: Obtain the channel information reflected by the first network device in a directional manner.

[0106] Next, taking the base station, the first network device, and the terminal as the execution entities respectively, the method for obtaining channel information will be described in detail.

[0107] The embodiment of the present application provides a method for sending a reference signal, which is applied to a base station. Referring to Figure 2 , the method includes:

[0108] Step 201: Send a first reference signal and a second reference signal.

[0109] Among them, the first reference signal and the second reference signal have a relationship of the first QCL type; in the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of the first network device; the first reference signal and the second reference signal are used for the first terminal to determine the channel information reflected by the first network device.

[0110] As described above, the first network device includes a reflecting surface, a relay device, or a network intermediate device.

[0111] Here, after the base station confirms the first terminal that has the channel conditions for capacity expansion and is within the signal coverage range of the first network device, it sends the first reference signal and the second reference signal, which are used for the first terminal to determine the channel information reflected by the first network device, and further determines whether to optimize the channel environment of the first network device on this basis.

[0112] Among them, as described above, the terminal has completed the initial access process through the base station and is in the connected state. To exclude the influence of the first network device on the terminal's initial access, the first network device is in the default state, that is, configured with random phases and / or spurious beams. The base station performs service transmission with the terminal. The base station determines, based on parameters such as the channel quality reported by the terminal, that the current channel quality is good enough for multi-stream or multi-user capacity expansion transmission, that is, the terminal has the channel conditions for capacity expansion. Specifically, assume that a certain terminal under the SSB where the first network device is located selects the beam direction corresponding to the CSI-RS with the strongest signal strength during the beam management phase, and the terminal estimates the channel using the configured downlink reference signal to obtain the channel state information, and then reports the channel state information to the base station. The base station can determine that the terminal has the channel conditions for capacity expansion based on the channel state reported by the terminal.

[0113] In addition, for terminals with the channel conditions for capacity expansion, the base station also needs to further identify which of these terminals are within the signal coverage range of the first network device. To identify the first terminal within the signal coverage range of the first network device, in one embodiment, before sending the first information to the first terminal and the first network device, the method further includes:

[0114] Configuring reference signal resources and reporting configurations corresponding to N reference signals for each terminal among at least one terminal; the at least one terminal represents a terminal located within the signal coverage range of the SSB where the first network device is located and having the channel conditions for capacity expansion; the SSB where the first network device is located has the relationship of the first QCL type with each of the N reference signals, or the CSI-RS having the relationship of QCL type D with the SSB has the relationship of the first QCL type with each of the N reference signals; N is a positive integer greater than 1;

[0115] Receiving the measurement results reported by each terminal among the at least one terminal; the measurement results include the first index corresponding to the third reference signal and the RSRP of the third reference signal, and include the second index and the RSRP difference value corresponding to L-1 fourth reference signals; the third reference signal represents the reference signal with the strongest RSRP measured by the terminal reporting the corresponding measurement result among the N reference signals; the L-1 fourth reference signals represent the L-1 reference signals with the second strongest RSRP measured by the terminal reporting the corresponding measurement result among the N reference signals; L is greater than 1 and less than or equal to N; the RSRP difference value represents the RSRP strength difference between the corresponding fourth reference signal and the fourth reference signal adjacent in RSRP strength value;

[0116] Determine the terminal whose first RSRP in the measurement result is greater than the first set value and the RSRP difference values corresponding to the L - 1 fourth reference signals are all greater than the second set value as the first terminal.

[0117] Specifically:

[0118] Step 1: The base station configures the reference signal resources corresponding to N downlink reference signals and the corresponding reporting configuration for each terminal within the signal coverage range of the SSB where the first network device is located and having the channel conditions for expansion.

[0119] Among them, these N downlink reference signals are polled with N beams within the coverage range of the first network device. The reporting configuration includes the indexes of L downlink reference signals and the corresponding RSRP. The downlink reference signals configured by the base station for different terminals are orthogonal in the spatial domain, time domain, frequency domain, or code domain. In addition, the SSB where the first network device is located has the relationship of the first QCL type with each of the N reference signals, or the CSI - RS having the relationship of QCL type D with this SSB has the relationship of the first QCL type with each of the N reference signals.

[0120] Step 2: The base station configures the same reference signal resources as in Step 1 for the first network device, and instructs the first network device to adjust the reflection coefficient to reflect the corresponding downlink reference signals using different beams on different reference signal resources, and no reporting configuration is performed on the first network device.

[0121] Step 3: The base station transmits N downlink reference signals, and the first network device uses the corresponding reflection coefficient on the corresponding reference signal resources to reflect the downlink reference signals to the terminals.

[0122] Step 4: The terminal receives the N downlink reference signals transmitted by the base station according to the configuration of the base station in Step 1, selects the L downlink reference signals with the strongest signal strength among them to report the measurement results, and the reported content includes the index X of the downlink reference signal with the strongest signal strength and the corresponding RSRP value, as well as the indexes of the L - 1 downlink reference signals with the second - strongest signal strength and the corresponding RSRP difference values.

[0123] Here, the RSRP difference value represents the RSRP strength difference between the corresponding fourth reference signal and the fourth reference signal adjacent to the RSRP strength value.

[0124] Alternatively, in the embodiments of the present application, the RSRP difference value involved may also represent the RSRP strength difference between the corresponding fourth reference signal and the downlink reference signal with the strongest signal strength, which will not be elaborated below.

[0125] Step 5: The base station receives the measurement results reported by the terminal. If the RSRP value corresponding to the downlink reference signal with the strongest signal strength in the measurement results is greater than the first set value, and the RSRP difference values corresponding to L - 1 downlink reference signals with the second - strongest signal strength are all greater than the second set value, then the base station determines that the terminal is within the signal coverage range of the first network device.

[0126] Here, the RSRP value corresponding to the downlink reference signal with the strongest signal strength being greater than the first set value indicates that the signal strength of the downlink reference signal with the strongest signal strength is strong enough, and the RSRP difference values corresponding to L - 1 downlink reference signals with the second - strongest signal strength being all greater than the second set value indicates that the difference in the signal strengths of the L downlink reference signals is large enough.

[0127] In one embodiment, the method further includes:

[0128] After determining the first terminal, send a first indication to the first network device.

[0129] Wherein, the first indication is used to instruct the first network device to configure a first reflection coefficient; the first reflection coefficient corresponds to the beam direction of the third reference signal.

[0130] Here, after the above - mentioned step 5, the base station, according to the index X of the downlink reference signal with the strongest signal strength, instructs the first network device to configure the reflection coefficient corresponding to the beam direction of this downlink reference signal.

[0131] After the base station confirms the first terminal with expanded channel conditions and within the signal coverage range of the first network device, before sending the first reference signal and the second reference signal to the first terminal, it is necessary to perform resource configuration and reporting configuration for the first reference signal and the second reference signal on the terminal. Here, it is required that the terminal report the channel information after being directionally reflected by the first network device. Based on this, in one embodiment, before sending the first reference signal and the second reference signal, the method further includes:

[0132] Send a first message to the first terminal and the first network device.

[0133] Wherein, the first message includes the resource configuration of the first reference signal and the second reference signal; the first message is used to determine that the first reference signal and the second reference signal have a relationship of the first QCL type.

[0134] In one embodiment, the first message is used to indicate:

[0135] The first reference signal and the third reference signal have a relationship of QCL type D, and / or receive the first reference signal using the beam direction for receiving the third reference signal; and,

[0136] The second reference signal has a relationship of QCL type D with the SSB where the first network device is located, or the second reference signal has a relationship of QCL type D with the fifth reference signal; the fifth reference signal represents the optimal downlink reference signal measured by the first terminal that has a relationship of QCL type D with the SSB where the first network device is located.

[0137] Here, the fifth reference signal is also the downlink reference signal with the strongest signal strength measured by the first terminal that has a QCL-Type D relationship with the SSB where the first network device is located.

[0138] In addition, the base station also configures resource allocations for the first reference signal and the second reference signal for the first network device, but does not perform reporting configurations. The first network device determines, based on the indication in the first information: 1. The reference signal Y uses the same reflection coefficient as the reference signal X; 2. The reference signal Z uses the default reflection coefficient, that is, a random phase and / or a spurious beam.

[0139] Here, for the convenience of explanation, let the first reference signal be the reference signal Y, the second reference signal be the reference signal Z, and the third reference signal be the reference signal X. Specifically:

[0140] Step 1: The base station sends the reference signal Y, and the first network device reflects the reference signal Y to the first terminal using the same reflection coefficient as the reference signal X.

[0141] Step 2: The first terminal receives the reference signal Y in the beam direction of receiving the reference signal X, and uses the reference signal Y for channel estimation to obtain the channel information reflected by the first network device.

[0142] Step 3: The base station sends the reference signal Z, and the first network device reflects the reference signal Z to the first terminal using the default reflection coefficient.

[0143] Step 4: The first terminal receives the reference signal Z in the beam direction of receiving the SSB or the beam direction of receiving the optimal downlink reference signal that has a relationship of QCL type D with the SSB, and uses the reference signal Z for channel estimation to obtain the channel information that is not reflected by the first network device.

[0144] After that, the first terminal determines, according to the indication in the first information, that the reference signal Y and the reference signal Z have a relationship of the first QCL type, and thus performs a difference operation on the channel information corresponding to the reference signal Y and the reference signal Z to obtain the channel information that reaches the terminal after being directionally reflected by the first network device from the base station, and reports it to the base station. Through the measurement and reporting results of the terminal on the reflected channel, the base station can determine whether it is necessary to call the first network device to further improve the channel environment, thereby effectively improving the communication performance.

[0145] Correspondingly, an embodiment of the present application further provides a method for transmitting a reference signal, which is applied to a first network device, such as Figure 3 shown, the method includes:

[0146] Step 301: Receive a first reference signal and a second reference signal sent by a base station; the first reference signal and the second reference signal have a relationship of a first QCL type; in the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of the first network device;

[0147] Step 302: Use a default reflection coefficient on the resource of the first reference signal, and use the first reflection coefficient configured by the base station to reflect the second reference signal on the resource of the second reference signal.

[0148] Wherein, the default reflection coefficient is characterized as a random phase or a spurious beam.

[0149] Wherein, in one embodiment, before receiving the first reference signal and the second reference signal sent by the base station, the method further includes:

[0150] Receive a first piece of information sent by the base station; the first piece of information includes the resource configuration of the first reference signal and the second reference signal; the first piece of information is used to determine that the first reference signal and the second reference signal have the relationship of the first QCL type.

[0151] In one embodiment, the method further includes:

[0152] Receive a first indication from the base station.

[0153] Wherein, the first indication is used to instruct the first network device to configure the first reflection coefficient; the first reflection coefficient corresponds to the beam direction of a third reference signal; the third reference signal represents the reference signal with the strongest RSRP measured by the first terminal among N reference signals sent by the base station; the SSB where the first network device is located or the channel state information reference signal CSI-RS having a relationship of QCL type D with the SSB has the relationship of the first QCL type with each of the N reference signals; N is a positive integer greater than 1.

[0154] In one embodiment, the first piece of information is used to indicate:

[0155] The first reference signal and the third reference signal have a relationship of QCL type D, and / or receive the first reference signal using the beam direction of the third reference signal; and,

[0156] The second reference signal has a relationship of QCL type D with the SSB where the first network device is located, or the second reference signal has a relationship of QCL type D with the fifth reference signal; the fifth reference signal represents the optimal downlink reference signal measured by the first terminal and having a relationship of QCL type D with the SSB where the first network device is located.

[0157] In one embodiment, the default reflection coefficient includes a random phase or a spurious beam.

[0158] Correspondingly, an embodiment of the present application further provides a method for obtaining channel information, which is applied to a first terminal. As Figure 4 shown, the method includes:

[0159] Step 401: Receive a first reference signal and a second reference signal sent by a base station; the first reference signal and the second reference signal have a relationship of a first QCL type; in the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of the first network device.

[0160] Step 402: Obtain first channel information based on the first reference signal, and obtain second channel information based on the second reference signal; the first channel information represents the channel information that has not been reflected by the first network device; the second channel information represents the superposition of the channel information reflected by the first network device and the channel information that has not been reflected by the first network device.

[0161] Wherein, in one embodiment, the method further includes:

[0162] Determine the channel information reflected by the first network device according to the difference between the first channel information and the second channel information.

[0163] In one embodiment, the method further includes:

[0164] Receive a first piece of information sent by the base station; wherein,

[0165] the first piece of information includes the resource configuration of the first reference signal and the second reference signal; the first piece of information is used to determine that the first reference signal and the second reference signal have the relationship of the first QCL type.

[0166] In one embodiment, before receiving the first reference signal and the second reference signal sent by the base station, the method further includes:

[0167] Receive N reference signal resources configured by the base station and the reporting configuration corresponding to each reference signal resource; the SSB where the first network device is located has the relationship of the first QCL type with each of the N reference signals, or, the CSI-RS that has the relationship of QCL type D with the SSB has the relationship of the first QCL type with each of the N reference signals; N is a positive integer greater than 1;

[0168] Receive N reference signals respectively sent by the base station through the N reference signal resources;

[0169] Report the measurement results of the N reference signals; the measurement results include the first index corresponding to the third reference signal and the RSRP of the third reference signal, and include the second index and the RSRP difference value corresponding to each of the L-1 fourth reference signals among the L-1 fourth reference signals; the third reference signal represents the reference signal with the strongest RSRP measured by the first terminal among the N reference signals; the L-1 fourth reference signals represent the L-1 reference signals with the second strongest RSRP measured by the first terminal among the N reference signals; L is greater than 1 and less than or equal to N; the RSRP difference value represents the RSRP intensity difference between the corresponding fourth reference signal and the fourth reference signal adjacent in RSRP intensity value.

[0170] The following further describes the present application in detail in combination with application embodiments.

[0171] Figure 5 Shows an example diagram of an unobstructed scenario, where the incident beam is the same as the SSB 1 beam where the first network device is located. Figure 6 Shows the signal relationship of this unobstructed scenario, combined with Figure 7 It can be seen that "nzp-CSI-Resourceld18" has the relationship of the first QCL type with SSB 1.

[0172] Figure 8 Shows another example diagram of an unobstructed scenario, where the incident beam is the same as the CSI-RS that has the relationship of QCL type D with the SSB 1 where the first network device is located. Figure 9 Shows the signal relationship of this unobstructed scenario, combined with Figure 10 It can be seen that "nzp-CSI-Resourceld 22" has the relationship of the first QCL type with "nzp-CSI-Resourceld12".

[0173] In order to implement the method for sending reference signals on the base station side in the embodiments of the present application, the embodiments of the present application further provide a device for sending reference signals, which is set on the base station, as Figure 11As shown, the device includes:

[0174] A first transmission unit 1101, configured to transmit a first reference signal and a second reference signal; wherein,

[0175] The first reference signal and the second reference signal have a relationship of the first QCL type; in the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of the first network device; the first reference signal and the second reference signal are used for a first terminal to determine the channel information reflected by the first network device.

[0176] Wherein, in one embodiment, the device further includes:

[0177] A second transmission unit, configured to send a first piece of information to the first terminal and the first network device before transmitting the first reference signal and the second reference signal; wherein,

[0178] The first piece of information includes the resource configuration of the first reference signal and the second reference signal; the first piece of information is used to determine that the first reference signal and the second reference signal have the relationship of the first QCL type; the first terminal represents a terminal located within the signal coverage range of the first network device and having an expanded channel condition.

[0179] In one embodiment, the device further includes:

[0180] A configuration unit, configured to configure, for each terminal in at least one terminal, the reference signal resources corresponding to N reference signals and the reporting configuration before sending the first piece of information to the first terminal and the first network device; the at least one terminal represents a terminal located within the signal coverage range of the SSB where the first network device is located and having an expanded channel condition; the SSB where the first network device is located has the relationship of the first QCL type with each of the N reference signals, or, the CSI-RS having the relationship of QCL type D with the SSB has the relationship of the first QCL type with each of the N reference signals; N is a positive integer greater than 1;

[0181] A third receiving unit, configured to receive the measurement results reported by each of the at least one terminal; the measurement results include a first index corresponding to a third reference signal and the RSRP of the third reference signal, and include a second index and an RSRP difference value corresponding to each of the L - 1 fourth reference signals; the third reference signal represents the reference signal with the strongest RSRP measured by the terminal reporting the corresponding measurement result among the N reference signals; the L - 1 fourth reference signals represent the L - 1 reference signals with the second strongest RSRP measured by the terminal reporting the corresponding measurement result among the N reference signals; L is greater than 1 and less than or equal to N; the RSRP difference value represents the RSRP intensity difference between the corresponding fourth reference signal and the fourth reference signal adjacent in RSRP intensity.

[0182] A first determining unit, configured to determine, as the first terminal, a terminal in which the first RSRP in the measurement results is greater than a first set value and the RSRP difference values corresponding to the L - 1 fourth reference signals are all greater than a second set value.

[0183] In an embodiment, the first information is used to indicate:

[0184] The first reference signal and the third reference signal have a relationship of QCL type D, and / or the first reference signal is received using the beam direction for receiving the third reference signal; and,

[0185] The second reference signal and the SSB where the first network device is located have a relationship of QCL type D, or the second reference signal and a fifth reference signal have a relationship of QCL type D; the fifth reference signal represents the optimal downlink reference signal measured by the first terminal and having a relationship of QCL type D with the SSB where the first network device is located.

[0186] In an embodiment, the apparatus further includes:

[0187] A third sending unit, configured to send a first indication to the first network device after determining the first terminal; wherein,

[0188] The first indication is used to instruct the first network device to configure a first reflection coefficient; the first reflection coefficient corresponds to the beam direction of the third reference signal.

[0189] In practical applications, the first sending unit 1101, the second sending unit, the third receiving unit, and the third sending unit may be implemented by a communication interface in a reference signal sending device; the configuration unit and the first determining unit may be implemented by a processor in the reference signal sending device.

[0190] It should be noted that when the reference signal transmitting device provided in the above embodiment transmits a reference signal, only the division of the above program modules is used for illustration. In practical applications, the above processing can be allocated to different program modules according to needs, that is, the internal structure of the device is divided into different program modules to complete all or part of the above-described processing. In addition, the reference signal transmitting device provided in the above embodiment and the embodiment of the reference signal transmitting method belong to the same concept. For the specific implementation process, please refer to the method embodiment, which will not be elaborated here.

[0191] To implement the reference signal transmission method on the first network device side in the embodiments of the present application, the embodiments of the present application further provide a reference signal transmitting device, which is set on the first network device. As Figure 12 shown, the device includes:

[0192] A first receiving unit 1201, configured to receive a first reference signal and a second reference signal sent by a base station; the first reference signal and the second reference signal have a relationship of the first QCL type; in the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of the first network device;

[0193] A reflection unit 1202, configured to use a default reflection coefficient on the resource of the first reference signal and use the first reflection coefficient configured by the base station to reflect the second reference signal on the resource of the second reference signal; wherein,

[0194] The default reflection coefficient is characterized as a random phase or a spurious beam.

[0195] Wherein, in one embodiment, the first network device includes a reflective surface or a relay device or a network intermediate device.

[0196] In one embodiment, the device further includes:

[0197] A fourth receiving unit, configured to receive a first piece of information sent by the base station before receiving the first reference signal and the second reference signal sent by the base station; the first piece of information includes the resource configuration of the first reference signal and the second reference signal; the first piece of information is used to determine that the first reference signal and the second reference signal have the relationship of the first QCL type.

[0198] In one embodiment, the device further includes:

[0199] A fifth receiving unit, configured to receive a first indication from the base station; wherein,

[0200] The first indication is used to indicate that the first network device configures the first reflection coefficient; the first reflection coefficient corresponds to the beam direction of a third reference signal; the third reference signal represents the reference signal with the strongest RSRP measured by a first terminal among N reference signals transmitted by the base station; the SSB where the first network device is located or a channel state information reference signal CSI-RS having a QCL type D relationship with the SSB has a relationship of the first QCL type with each of the N reference signals; N is a positive integer greater than 1.

[0201] In an embodiment, the first information is used to indicate:

[0202] The first reference signal has a QCL type D relationship with the third reference signal, and / or the first reference signal is received using the beam direction of the third reference signal; and,

[0203] The second reference signal has a QCL type D relationship with the SSB where the first network device is located, or the second reference signal has a QCL type D relationship with a fifth reference signal; the fifth reference signal represents the optimal downlink reference signal measured by the first terminal and having a QCL type D relationship with the SSB where the first network device is located.

[0204] In actual application, the first receiving unit 1201, the reflection unit 1202, the fourth receiving unit, and the fifth receiving unit can be implemented by a communication interface in a reference signal transmitting device.

[0205] It should be noted that: when the reference signal transmitting device provided in the above embodiment transmits a reference signal, only the division of the above program modules is used for illustration. In actual application, the above processing can be allocated to different program modules according to needs, that is, the internal structure of the device is divided into different program modules to complete all or part of the above-described processing. In addition, the reference signal transmitting device provided in the above embodiment and the reference signal transmitting method embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be elaborated here.

[0206] To implement the method for obtaining channel information on the first terminal side in an embodiment of the present application, an embodiment of the present application further provides a device for obtaining channel information, which is set on the first terminal, as Figure 13 shown, and the device includes:

[0207] A third receiving unit 1301, configured to receive a first reference signal and a second reference signal sent by a base station; the first reference signal and the second reference signal have a relationship of a first QCL type; in the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of a first network device;

[0208] An obtaining unit 1302, configured to obtain first channel information based on the first reference signal and obtain second channel information based on the second reference signal; wherein,

[0209] The first channel information represents channel information that has not been reflected by the first network device; the second channel information represents the superposition of channel information reflected by the first network device and channel information that has not been reflected by the first network device.

[0210] Wherein, in one embodiment, the apparatus further includes:

[0211] A second determining unit, configured to determine the channel information reflected by the first network device according to the difference between the first channel information and the second channel information.

[0212] In one embodiment, the apparatus further includes:

[0213] A sixth receiving unit, configured to receive a first piece of information sent by the base station; wherein,

[0214] The first piece of information includes resource configurations of the first reference signal and the second reference signal; the first piece of information is used to determine that the first reference signal and the second reference signal have the relationship of the first QCL type.

[0215] In one embodiment, the apparatus further includes:

[0216] A seventh receiving unit, configured to receive N reference signal resources configured by the base station and a reporting configuration corresponding to each reference signal resource before receiving the first reference signal and the second reference signal sent by the base station; the SSB where the first network device is located has the relationship of the first QCL type with each of the N reference signals, or the CSI-RS that has the relationship of QCL type D with the SSB has the relationship of the first QCL type with each of the N reference signals; N is a positive integer greater than 1;

[0217] An eighth receiving unit, configured to receive N reference signals sent by the base station through the N reference signal resources respectively;

[0218] A reporting unit, configured to report measurement results of the N reference signals; the measurement results include a first index corresponding to a third reference signal and the RSRP of the third reference signal, and include a second index and an RSRP difference value corresponding to each of the L-1 fourth reference signals; the third reference signal represents the reference signal with the strongest RSRP measured by the first terminal among the N reference signals; the L-1 fourth reference signals represent the L-1 reference signals with the second strongest RSRP measured by the first terminal among the N reference signals; L is greater than 1 and less than or equal to N; the RSRP difference value represents the RSRP strength difference between the corresponding fourth reference signal and the fourth reference signal adjacent in RSRP strength value.

[0219] In practical applications, the third receiving unit 1301, the sixth receiving unit, the seventh receiving unit, and the working receiving unit can be implemented by a communication interface in the channel information acquisition device, and the acquisition unit and the second determination unit can be implemented by a processor in the channel information acquisition device.

[0220] It should be noted that: when the channel information acquisition device provided in the above embodiment acquires channel information, only the division of the above program modules is used for illustration. In practical applications, the above processing can be allocated to different program modules according to needs, that is, the internal structure of the device is divided into different program modules to complete all or part of the above-described processing. In addition, the channel information acquisition device provided in the above embodiment and the embodiment of the channel information acquisition method belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0221] Based on the hardware implementation of the above program modules, and in order to implement the method on the base station side in the embodiments of the present application, the embodiments of the present application further provide a base station, as Figure 14 shown, the base station 1400 includes:

[0222] A first communication interface 1401, capable of interacting with other network nodes;

[0223] A first processor 1402, connected to the first communication interface 1401 to implement information interaction with other network nodes, and when running a computer program, execute the method provided by one or more of the above technical solutions on the base station side. And the computer program is stored on the first memory 1403.

[0224] Specifically, the first communication interface 1401 is configured to send a first reference signal and a second reference signal; wherein,

[0225] The first reference signal and the second reference signal have a relationship of the first QCL type; in the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of the first network device; the first reference signal and the second reference signal are used for a first terminal to determine channel information reflected by the first network device.

[0226] Wherein, in one embodiment, the first communication interface 1401 is further configured to send first information to the first terminal and the first network device before sending the first reference signal and the second reference signal; wherein,

[0227] The first information includes resource configurations of the first reference signal and the second reference signal; the first information is used to determine that the first reference signal and the second reference signal have the relationship of the first QCL type; the first terminal represents a terminal located within the signal coverage range of the first network device and having an expanded channel condition.

[0228] In one embodiment, the first processor 1402 is configured to configure, for each of at least one terminal, reference signal resources and reporting configurations corresponding to N reference signals before sending the first information to the first terminal and the first network device; the at least one terminal represents a terminal located within the signal coverage range of the SSB where the first network device is located and having an expanded channel condition; the SSB where the first network device is located has the relationship of the first QCL type with each of the N reference signals, or the CSI-RS having the relationship of QCL type D with the SSB has the relationship of the first QCL type with each of the N reference signals; N is a positive integer greater than 1;

[0229] The first communication interface 1401 is further configured to receive measurement results reported by each of the at least one terminal; the measurement results include a first index corresponding to a third reference signal and the RSRP of the third reference signal, and include a second index and an RSRP difference value corresponding to each of L-1 fourth reference signals among the L-1 fourth reference signals; each of the fourth reference signals in the third reference signal represents the reference signal with the strongest RSRP measured by the terminal among the N reference signals; the L-1 fourth reference signals represent the L-1 reference signals with the second strongest RSRP measured by the terminal reporting the corresponding measurement result among the N reference signals; L is greater than 1 and less than or equal to N; the RSRP difference value represents the RSRP intensity difference between the corresponding fourth reference signal and the fourth reference signal adjacent in RSRP intensity.

[0230] The first processor 1402 is further configured to determine a terminal whose first RSRP in the measurement result is greater than a first set value and the RSRP difference values corresponding to the L-1 fourth reference signals are all greater than a second set value as the first terminal.

[0231] In one embodiment, the first information is used to indicate:

[0232] The first reference signal and the third reference signal have a relationship of QCL type D, and / or the first reference signal is received by using the beam direction for receiving the third reference signal; and,

[0233] The second reference signal and the SSB where the first network device is located have a relationship of QCL type D, or the second reference signal and the fifth reference signal have a relationship of QCL type D; the fifth reference signal represents the optimal downlink reference signal measured by the first terminal and having a relationship of QCL type D with the SSB where the first network device is located.

[0234] In one embodiment, after determining the first terminal, the first communication interface 1401 is further configured to send a first indication to the first network device; wherein,

[0235] The first indication is used to instruct the first network device to configure a first reflection coefficient; the first reflection coefficient corresponds to the beam direction of the third reference signal.

[0236] It should be noted that the specific processing procedures of the first processor 1402 and the first communication interface 1401 can be understood with reference to the above method.

[0237] Of course, in practical applications, each component in the base station 1400 is coupled together through the bus system 1404. It can be understood that the bus system 1404 is used to realize the connection and communication between these components. The bus system 1404 includes, in addition to the data bus, a power bus, a control bus, and a status signal bus. However, for the sake of clear illustration, in Figure 14 all kinds of buses are labeled as the bus system 1404.

[0238] The first memory 1403 in the embodiments of the present application is used to store various types of data to support the operation of the base station 1400. Examples of these data include: any computer program for operating on the base station 1400.

[0239] The method disclosed in the embodiments of the present application above can be applied to or implemented by the first processor 1402. The first processor 1402 may be an integrated circuit chip with signal processing capabilities. During implementation, the steps of the above method can be completed by the integrated logic circuit in hardware or instructions in software form in the first processor 1402. The above-mentioned first processor 1402 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The first processor 1402 can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor, etc. Combining the steps of the method disclosed in the embodiments of the present application, it can be directly embodied as being executed and completed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, and this storage medium is located in the first memory 1403. The first processor 1402 reads the information in the first memory 1403 and combines its hardware to complete the steps of the foregoing method.

[0240] In an exemplary embodiment, the base station 1400 can be implemented by one or more application-specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontroller units (MCUs), microprocessors, or other electronic components for executing the foregoing method.

[0241] Based on the hardware implementation of the above program module and in order to implement the method on the first network device side in the embodiments of the present application, the embodiments of the present application further provide a first network device, as Figure 15 shown. The first network device 1500 includes:

[0242] A second communication interface 1501 capable of interacting with other network nodes for information.

[0243] A second processor 1502, connected to the second communication interface 1501 to enable information interaction with other network nodes, is configured to execute the method provided by one or more of the above technical solutions on the first network device side when running a computer program. The computer program is stored on a second memory 1503.

[0244] Specifically, the second communication interface 1501 is configured to receive a first reference signal and a second reference signal sent by a base station; the first reference signal and the second reference signal have a relationship of a first QCL type; in the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of the first network device;

[0245] The second communication interface 1501 is further configured to use a default reflection coefficient on the resource of the first reference signal and reflect the second reference signal using the first reflection coefficient configured by the base station on the resource of the second reference signal; wherein,

[0246] The default reflection coefficient is characterized as a random phase or a spurious beam.

[0247] Wherein, in one embodiment, the first network device includes a reflecting surface or a relay device or a network intermediate device.

[0248] In one embodiment, the second communication interface 1501 is further configured to receive a first piece of information sent by the base station before receiving the first reference signal and the second reference signal sent by the base station; the first piece of information includes the resource configuration of the first reference signal and the second reference signal; the first piece of information is used to determine that the first reference signal and the second reference signal have the relationship of the first QCL type.

[0249] In one embodiment, the second communication interface 1501 is further configured to receive a first indication from the base station; wherein,

[0250] The first indication is used to instruct the first network device to configure the first reflection coefficient; the first reflection coefficient corresponds to the beam direction of a third reference signal; the third reference signal represents the reference signal with the strongest RSRP measured by a first terminal among N reference signals sent by the base station; the SSB where the first network device is located or the CSI-RS having a relationship of QCL type D with the SSB has the relationship of the first QCL type with each of the N reference signals; N is a positive integer greater than 1.

[0251] In one embodiment, the first piece of information is used to indicate:

[0252] The first reference signal and the third reference signal have a relationship of QCL type D, and / or, the first reference signal is received by using the beam direction for receiving the third reference signal; and,

[0253] The second reference signal and the SSB where the first network device is located have a relationship of QCL type D, or the second reference signal and the fifth reference signal have a relationship of QCL type D; the fifth reference signal represents the optimal downlink reference signal measured by the first terminal and having a relationship of QCL type D with the SSB where the first network device is located.

[0254] It should be noted that: The specific processing procedures of the second processor 1502 and the second communication interface 1501 can be understood with reference to the above method.

[0255] Of course, in practical applications, the various components in the first network device 1500 are coupled together through the bus system 1504. It can be understood that the bus system 1504 is used to realize the connection and communication between these components. The bus system 1504 includes, in addition to the data bus, a power bus, a control bus, and a status signal bus. However, for the sake of clear illustration, in Figure 15 all kinds of buses are labeled as the bus system 1504.

[0256] The second memory 1503 in the embodiments of the present application is used to store various types of data to support the operation of the first network device 1500. Examples of these data include: any computer program for operating on the first network device 1500.

[0257] The method disclosed in the embodiments of the present application above can be applied to the second processor 1502 or implemented by the second processor 1502. The second processor 1502 may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the above method can be completed by the integrated logic circuit in the hardware of the second processor 1502 or by instructions in the form of software. The above-mentioned second processor 1502 may be a general-purpose processor, a DSP, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The second processor 1502 can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor, etc. Combining the steps of the method disclosed in the embodiments of the present application, it can be directly embodied as being executed and completed by a hardware decoding processor, or by a combination of the hardware and software modules in the decoding processor. The software module may be located in a storage medium, and this storage medium is located in the second memory 1503. The second processor 1502 reads the information in the second memory 1503 and combines its hardware to complete the steps of the foregoing method.

[0258] In an exemplary embodiment, the first network device 1500 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, microprocessors, or other electronic components for performing the foregoing method.

[0259] Based on the hardware implementation of the foregoing program modules and for implementing the method on the first terminal side in the embodiments of the present application, the embodiments of the present application further provide a first terminal, as Figure 16 shown. The first terminal 1600 includes:

[0260] A third communication interface 1601 capable of interacting with other network nodes;

[0261] A third processor 1602 connected to the third communication interface 1601 to implement information interaction with other network nodes. When running a computer program, the third processor 1602 executes the method provided by one or more of the foregoing technical solutions on the first terminal side. The computer program is stored on a third memory 1603.

[0262] Specifically, the third communication interface 1601 is configured to receive a first reference signal and a second reference signal sent by a base station; the first reference signal and the second reference signal have a relationship of a first QCL type; in the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of the first network device;

[0263] The third processor 1602 is configured to obtain first channel information based on the first reference signal and obtain second channel information based on the second reference signal; wherein,

[0264] The first channel information represents the channel information that has not been reflected by the first network device; the second channel information represents the superposition of the channel information reflected by the first network device and the channel information that has not been reflected by the first network device.

[0265] Wherein, in one embodiment, the third processor 1602 is further configured to determine the channel information reflected by the first network device according to the difference between the first channel information and the second channel information.

[0266] In one embodiment, the third communication interface 1601 is further configured to receive a first piece of information sent by the base station; wherein,

[0267] The first piece of information includes the resource configuration of the first reference signal and the second reference signal; the first piece of information is used to determine that the first reference signal and the second reference signal have the relationship of the first QCL type.

[0268] In one embodiment, the third communication interface 1601 is further configured to receive N reference signal resources configured by the base station and the reporting configuration corresponding to each reference signal resource before receiving the first reference signal and the second reference signal sent by the receiving base station; the SSB where the first network device is located has the relationship of the first QCL type with each of the N reference signals, or the CSI-RS having the relationship of QCL type D with the SSB has the relationship of the first QCL type with each of the N reference signals; N is a positive integer greater than 1;

[0269] The third communication interface 1601 is further configured to receive N reference signals respectively sent by the base station through the N reference signal resources;

[0270] The third communication interface 1601 is further configured to report measurement results on the N reference signals; the measurement results include a first index corresponding to a third reference signal and the RSRP of the third reference signal, and include a second index and an RSRP difference value corresponding to each of the L-1 fourth reference signals among the L-1 fourth reference signals; the third reference signal represents the reference signal with the strongest RSRP measured by the first terminal among the N reference signals; the L-1 fourth reference signals represent the L-1 reference signals with the second strongest RSRP measured by the first terminal among the N reference signals; L is greater than 1 and less than or equal to N; the RSRP difference value represents the RSRP strength difference between the corresponding fourth reference signal and the fourth reference signal adjacent in RSRP strength value.

[0271] Of course, in practical applications, each component in the first terminal 1600 is coupled together through the bus system 1604. It can be understood that the bus system 1604 is used to realize the connection and communication between these components. The bus system 1604 includes, in addition to the data bus, a power bus, a control bus, and a status signal bus. However, for the sake of clear illustration, in Figure 16 all kinds of buses are labeled as the bus system 1604.

[0272] The third memory 1603 in the embodiment of the present application is used to store various types of data to support the operation of the first terminal 1600. Examples of these data include: any computer program for operating on the first terminal 1600.

[0273] The method disclosed in the embodiments of the present application can be applied to or implemented by the third processor 1602. The third processor 1602 may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the above method can be completed by the integrated logic circuit of the hardware in the third processor 1602 or instructions in the form of software. The above-mentioned third processor 1602 may be a general-purpose processor, DSP, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The third processor 1602 can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor, etc. Combining the steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed and completed by the hardware decoding processor, or executed and completed by the combination of the hardware and software modules in the decoding processor. The software module may be located in the storage medium, and this storage medium is located in the third memory 1603. The third processor 1602 reads the information in the third memory 1603 and combines its hardware to complete the steps of the foregoing method.

[0274] In an exemplary embodiment, the first terminal 1600 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, Microprocessors, or other electronic components for executing the foregoing method.

[0275] It can be understood that the memories (the first memory 1403, the second memory 1503, and the third memory 1603) in the embodiments of the present application can be volatile memories or non-volatile memories, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM, Read Only Memory), a programmable read-only memory (PROM, Programmable Read-Only Memory), an erasable programmable read-only memory (EPROM, Erasable Programmable Read-Only Memory), an electrically erasable programmable read-only memory (EEPROM, Electrically Erasable Programmable Read-Only Memory), a ferromagnetic random access memory (FRAM, ferromagnetic random access memory), a flash memory (Flash Memory), a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM, Compact Disc Read-Only Memory); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (RAM, Random Access Memory), which is used as an external cache.By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), sync link dynamic random access memory (SLDRAM), direct rambus random access memory (DRRAM). The memories described in the embodiments of the present application are intended to include but not be limited to these and any other suitable types of memories.

[0276] In an exemplary embodiment, the embodiments of the present application also provide a storage medium, namely a computer storage medium, specifically a computer-readable storage medium. For example, it includes a first memory 1403 that stores a computer program, and the above computer program can be executed by a first processor 1402 of a base station 1400 to complete the steps described in the foregoing base station-side method. Another example is a second memory 1503 that stores a computer program, and the above computer program can be executed by a second processor 1502 of a first network device 1500 to complete the steps described in the foregoing first network device-side method. Another example is a third memory 1603 that stores a computer program, and the above computer program can be executed by a third processor 1602 of a first terminal 1600 to complete the steps described in the foregoing first terminal-side method. The computer-readable storage medium can be a FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disc, or CD-ROM, etc.

[0277] It should be noted that: "first", "second", etc. are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence.

[0278] As used herein, the term "and / or" is merely a description of the relationship between associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the term "at least one" as used herein means any one of a plurality or any combination of at least two of a plurality. For example, including at least one of A, B, and C can represent including any one or more elements selected from the set composed of A, B, and C.

[0279] In addition, the technical solutions described in the embodiments of the present application can be arbitrarily combined without conflict.

[0280] The above is only a preferred embodiment of the present application and is not intended to limit the protection scope of the present application.

Claims

1. A method for transmitting a reference signal, characterized in that, Applied to a base station, the method includes: Sending a first reference signal and a second reference signal; wherein, The first reference signal and the second reference signal have a relationship of a first quasi - co - located (QCL) type; in the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of a first network device; the first reference signal and the second reference signal are used for a first terminal to determine the channel information reflected by the first network device.

2. The method according to claim 1, characterized in that, Before sending the first reference signal and the second reference signal, the method further includes: Sending first information to the first terminal and the first network device; wherein, The first information includes the resource configuration of the first reference signal and the second reference signal; the first information is used to determine that the first reference signal and the second reference signal have the relationship of the first QCL type; the first terminal represents a terminal located within the signal coverage range of the first network device and having an expanded channel condition.

3. The method according to claim 2, characterized in that, Before sending the first information to the first terminal and the first network device, the method further includes: Configuring reference signal resources and reporting configurations corresponding to N reference signals for each terminal in at least one terminal; the at least one terminal represents a terminal located within the signal coverage range of a synchronization signal block (SSB) where the first network device is located and having an expanded channel condition; the SSB where the first network device is located has the relationship of the first QCL type with each of the N reference signals, or a channel state information reference signal (CSI - RS) having the relationship of QCL type D with the SSB has the relationship of the first QCL type with each of the N reference signals; N is a positive integer greater than 1; Receiving the measurement results reported by each terminal in the at least one terminal; the measurement results include a first index corresponding to a third reference signal and the reference signal received power (RSRP) of the third reference signal, and include a second index and the RSRP difference value corresponding to each of the L - 1 fourth reference signals among the L - 1 fourth reference signals; the third reference signal represents the reference signal with the strongest RSRP measured by the terminal reporting the corresponding measurement result among the N reference signals; the L - 1 fourth reference signals represent the L - 1 reference signals with the second - strongest RSRP measured by the terminal reporting the corresponding measurement result among the N reference signals; L is greater than 1 and less than or equal to N; the RSRP difference value represents the RSRP intensity difference between the corresponding fourth reference signal and the fourth reference signal adjacent to it in terms of RSRP intensity; Determining the terminal whose first RSRP in the measurement results is greater than a first set value and the RSRP difference values corresponding to the L - 1 fourth reference signals are all greater than a second set value as the first terminal.

4. The method according to claim 3, characterized in that, The first information is used to indicate: The first reference signal and the third reference signal have a relationship of QCL type D, and / or receive the first reference signal using the beam direction of receiving the third reference signal; And, The second reference signal has a relationship of QCL type D with the SSB where the first network device is located, or the second reference signal has a relationship of QCL type D with the fifth reference signal; the fifth reference signal represents the optimal downlink reference signal measured by the first terminal and having a relationship of QCL type D with the SSB where the first network device is located.

5. The method according to claim 3, characterized in that, The method further includes: After determining the first terminal, sending a first indication to the first network device; wherein, The first indication is used to instruct the first network device to configure a first reflection coefficient; the first reflection coefficient corresponds to the beam direction of the third reference signal.

6. A method for transmitting a reference signal, characterized in that, Applied to a first network device, the method includes: Receiving a first reference signal and a second reference signal sent by a base station; the first reference signal and the second reference signal have a relationship of a first QCL type; in the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of the first network device; Using a default reflection coefficient on the resource of the first reference signal, and using the first reflection coefficient configured by the base station to reflect the second reference signal on the resource of the second reference signal; wherein, The default reflection coefficient is characterized as a random phase or a spurious beam.

7. The method according to claim 6, characterized in that, The first network device includes a reflecting surface or a relay device or an intermediate network device.

8. The method according to claim 7, characterized in that, Before receiving the first reference signal and the second reference signal sent by the base station, the method further includes: Receive the first information sent by the receiving base station; the first information includes the resource configuration of the first reference signal and the second reference signal; the first information is used to determine that the first reference signal and the second reference signal have the relationship of the first QCL type 。 9. The method according to claim 8, characterized in that, The method further includes: Receiving the first indication from the base station; wherein, The first indication is used to instruct the first network device to configure the first reflection coefficient; the first reflection coefficient corresponds to the beam direction of the third reference signal; the third reference signal represents the reference signal with the strongest RSRP measured by the first terminal among the N reference signals sent by the base station; the SSB where the first network device is located or the channel state information reference signal CSI-RS having a relationship of QCL type D with the SSB has a relationship of the first QCL type with each of the N reference signals; N is a positive integer greater than 1.

10. A method for obtaining channel information, characterized in that, Applied to a first terminal, the method includes: Receiving a first reference signal and a second reference signal sent by a base station; the first reference signal and the second reference signal have a relationship of a first QCL type; in the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of the first network device; Obtaining first channel information based on the first reference signal; the first channel information represents the channel information without being reflected by the first network device; Obtaining second channel information based on the second reference signal; the second channel information represents the superposition of the channel information after being reflected by the first network device and the channel information without being reflected by the first network device.

11. The method according to claim 10, characterized in that, The method further includes: Determining the channel information after being reflected by the first network device according to the difference between the first channel information and the second channel information.

12. The method according to claim 10 or 11, characterized in that, The method further includes: Receive the first information sent by the base station; wherein, The first information includes the resource configuration of the first reference signal and the second reference signal; the first information is used to determine that the first reference signal and the second reference signal have the relationship of the first QCL type.

13. The method according to claim 10, characterized in that, Before receiving the first reference signal and the second reference signal sent by the base station, the method further includes: Receiving N reference signal resources configured by the base station and the reporting configuration corresponding to each reference signal resource; the SSB where the first network device is located has the relationship of the first QCL type with each of the N reference signals, or the CSI-RS having the relationship of QCL type D with the SSB has the relationship of the first QCL type with each of the N reference signals; N is a positive integer greater than 1; Receiving N reference signals respectively sent by the base station through the N reference signal resources; Reporting the measurement results of the N reference signals; the measurement results include the first index corresponding to the third reference signal and the RSRP of the third reference signal, and include the second index and the RSRP difference value corresponding to each of the L-1 fourth reference signals among the L-1 fourth reference signals; the third reference signal represents the reference signal with the strongest RSRP measured by the first terminal among the N reference signals; the L-1 fourth reference signals represent the L-1 reference signals with the second strongest RSRP measured by the first terminal among the N reference signals; L is greater than 1 and less than or equal to N; the RSRP difference value represents the RSRP intensity difference between the corresponding fourth reference signal and the fourth reference signal adjacent in RSRP intensity.

14. A transmitting device for a reference signal, characterized in that, Including: A first sending unit, configured to send a first reference signal and a second reference signal; wherein, The first reference signal and the second reference signal have the relationship of the first QCL type; In the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of the first network device; the first reference signal and the second reference signal are used for the first terminal to determine the channel information reflected by the first network device.

15. A transmitting device for a reference signal, characterized in that, Including: A first receiving unit, configured to receive the first reference signal and the second reference signal sent by the base station; The first reference signal and the second reference signal have the relationship of the first QCL type; In the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of the first network device; A reflection unit, configured to use a default reflection coefficient on the resource of the first reference signal and use the first reflection coefficient configured by the base station to reflect the second reference signal on the resource of the second reference signal; wherein, The default reflection coefficient is characterized as a random phase and / or a spurious beam.

16. A device for obtaining channel information, characterized in that, Including: A second receiving unit, configured to receive the first reference signal and the second reference signal sent by the base station; The first reference signal and the second reference signal have the relationship of the first QCL type; In the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of the first network device; An obtaining unit, configured to obtain first channel information based on the first reference signal, and obtain second channel information based on the second reference signal; wherein, The first channel information represents the channel information that has not been reflected by the first network device; The second channel information represents the superposition of the channel information reflected by the first network device and the channel information that has not been reflected by the first network device.

17. A base station, characterized in that, It includes: A first processor and a first communication interface; wherein, The first communication interface is configured to send a first reference signal and a second reference signal; wherein, The first reference signal and the second reference signal have a relationship of the first QCL type; in the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of the first network device; the first reference signal and the second reference signal are used for a first terminal to determine the channel information reflected by the first network device.

18. A first network device, characterized in that, It includes: A second processor and a second communication interface; wherein, The second communication interface is configured to receive the first reference signal and the second reference signal sent by the base station; the first reference signal and the second reference signal have a relationship of the first QCL type; in the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of the first network device; The second communication interface is further configured to use a default reflection coefficient on the resource of the first reference signal, and reflect the second reference signal with the first reflection coefficient configured by the base station on the resource of the second reference signal; wherein, The default reflection coefficient is characterized as a random phase or a spurious beam.

19. A first terminal, characterized in that, It includes: A third processor and a third communication interface; wherein, The third communication interface is configured to receive the first reference signal and the second reference signal sent by the base station; the first reference signal and the second reference signal have a relationship of the first QCL type; in the relationship of the first QCL type, the beam of the second reference signal uses the beam of the first reference signal as the incident beam of the first network device; A first obtaining unit, configured to obtain first channel information based on the first reference signal; the first channel information represents the channel information that has not been reflected by the first network device; The third processor is configured to obtain first channel information based on the first reference signal, and obtain second channel information based on the second reference signal; the first channel information represents the channel information that has not been reflected by the first network device; the second channel information represents the superposition of the channel information reflected by the first network device and the channel information that has not been reflected by the first network device.

20. A base station, characterized in that, It includes: A first processor and a first memory for storing a computer program that can run on the processor, wherein, when the first processor is configured to run the computer program, it executes the steps of the method according to any one of claims 1 to 5.

21. A first network device, characterized in that, It includes: A second processor and a second memory for storing a computer program capable of running on the processor, wherein, when the second processor is used to run the computer program, it executes the steps of the method according to any one of claims 6 to 9.

22. A first terminal, characterized in that, Comprising: A third processor and a third memory for storing a computer program capable of running on the processor, wherein, when the third processor is used to run the computer program, it executes the steps of the method according to any one of claims 10 to 13.

23. A storage medium, on which a computer program is stored, characterized in that, When the computer program is executed by the processor, it implements the steps of the method according to any one of claims 1 to 5, or implements the steps of the method according to any one of claims 6 to 9, or implements the steps of the method according to any one of claims 10 to 13.

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