Wireless communication device and method

Abstract

A wireless communication device and method are provided, the method being applied to a repeater and including the step of receiving indication information from a network device, the indication information including information regarding a spatial filter and / or a reference signal.

Description

[Technical Field]

[0001] The present invention relates to the field of communications. [Background technology]

[0002] In actual communication network deployment, the signal coverage quality of different locations in a cell may vary. For example, a certain location of a cell may be blocked by a building, causing the signal to be significantly attenuated. To avoid this situation and improve the cell coverage, it is common to add a repeater to forward signals within the cell's coverage range.

[0003] The above description of the background art is merely for the purpose of explaining the configuration of the present invention more clearly and completely, and is provided for the understanding of those skilled in the art. These configurations described in the background art of the present invention should not be construed as being well known to those skilled in the art. Summary of the Invention [Problem to be solved by the invention]

[0004] Currently, a repeater is typically composed of two modules: one module for the base station (BS) that includes the transceiver on the base station side (BS-side), and the other module for the terminal (UE) that includes the transceiver on the terminal side (UE-side).

[0005] The transceiver on the base station side receives a radio frequency signal (RF signal) from the base station (BS) and can increase the strength of the RF signal by a certain multiple (dB) using a corresponding amplifier circuit. The amplified RF signal is transmitted to the terminal by the transceiver on the terminal side, fulfilling the function of signal amplification. Meanwhile, the transceiver on the terminal side receives the RF signal from the terminal and can increase the strength of the RF signal by a certain multiple (dB) using a corresponding amplifier circuit. The amplified RF signal is transmitted to the base station by the transceiver on the base station side, fulfilling the function of signal amplification. This repeater enhances the strength of the downlink signal transmitted by the base station. It also enhances the strength of the uplink signal transmitted by the terminal device, improving the cell coverage rate.

[0006] The inventors of the present invention have discovered that the transceiver devices on the base station side and / or terminal side in current repeaters do not use beamforming technology or cannot transmit and / or receive reference signals related to beamforming-related technologies. Therefore, since the RF signal is amplified by the repeater and then beamforming is not performed, the coverage angle of the transmitted signal is relatively large, which limits the gain of the repeater. In addition, the transmitted signal without beamforming may cause unnecessary interference to terminal devices in neighboring cells, thereby degrading system performance.

[0007] To solve one or more of the above problems, embodiments of the present invention provide a wireless communication device and method, in which a repeater receives instruction information from a network device, the instruction information including information about a spatial filter and / or a reference signal. Based on the instruction information, the repeater can receive and / or transmit signals to the network device and / or a terminal device using a beamforming technique, and / or can receive and / or transmit reference signals to the network device and / or a terminal device, thereby utilizing the beamforming information of the reference signal when transmitting and / or receiving signals. This can improve the gain of the repeater's transmitted and received signals, avoid interference with neighboring cells, and improve system performance. [Means for solving the problem]

[0008] In a first aspect of an embodiment of the present invention, there is provided a wireless communication device applied to a repeater, the device including: a first module for receiving instruction information from a network device, the instruction information including information related to a spatial filter and / or a reference signal.

[0009] A second aspect of an embodiment of the present invention provides a wireless communication device, which is applied to a network device, and includes a ninth module for transmitting instruction information to a repeater, wherein the instruction information includes information regarding a spatial filter and / or a reference signal.

[0010] In a third aspect of the present invention, there is provided a repeater including the apparatus according to the first aspect of the present invention.

[0011] In a fourth aspect of the present invention, there is provided a network device including the device according to the second aspect of the present invention.

[0012] In a fifth aspect of the present invention, there is provided a communication system including a repeater according to the third aspect of the present invention, a network device according to the fourth aspect of the present invention, and a terminal device.

[0013] In a sixth aspect of an embodiment of the present invention, there is provided a wireless communication method applied to a repeater, the method including a step of receiving instruction information from a network device, the instruction information including information regarding a spatial filter and / or a reference signal.

[0014] A seventh aspect of an embodiment of the present invention provides a wireless communication method applied to a network device, the method including a step of transmitting instruction information to a repeater, the instruction information including information regarding a spatial filter and / or a reference signal.

[0015] In an eighth aspect of the present invention, there is provided a computer-readable program that, when executed in a wireless communication device or repeater, causes the wireless communication device or repeater to perform the wireless communication method described in the sixth aspect of the present invention.

[0016] In a ninth aspect of the present invention, there is provided a storage medium having stored thereon a computer-readable program, which, when executed, causes a wireless communication device or repeater to perform the wireless communication method according to the sixth aspect of the present invention.

[0017] In a tenth aspect of the present invention, there is provided a computer-readable program that, when executed in a wireless communication device or a network device, causes the wireless communication device or the network device to perform the wireless communication method described in the seventh aspect of the present invention.

[0018] In an eleventh aspect of the present invention, there is provided a storage medium having a computer-readable program stored therein, the program causing a wireless communication device or a network device to execute the wireless communication method according to the seventh aspect of the present invention when the program is executed.

[0019] The advantageous effects of the present invention are as follows: The repeater receives instruction information from the network device, including information about the spatial filter and / or the reference signal. Therefore, the repeater can receive and / or transmit signals to the network device and / or the terminal device using beamforming technology based on the instruction information, and / or can receive and / or transmit reference signals to the network device and / or the terminal device, and can use the beamforming information of the reference signal when transmitting and / or receiving signals. Therefore, the gain of the transmitted and received signals of the repeater can be improved, and interference to adjacent cells can be avoided, thereby improving system performance.

[0020] As shown in the following description and drawings, specific embodiments of the present invention are disclosed in detail to illustrate ways in which the principles of the present invention can be employed. However, the scope of the present invention is not limited to these embodiments. The present invention encompasses all modifications, alterations, and equivalents within the spirit and scope of the appended claims.

[0021] Features described and / or shown in one embodiment may be used in the same or similar manner in one or more other embodiments, may be combined with features in other embodiments, or may be substituted for features in other embodiments.

[0022] It should be noted that in this text, the term "comprise / have" means the presence of a feature, element, step or component, and does not exclude the presence or addition of one or more other features, elements, steps or components. [Brief explanation of the drawings]

[0023] The drawings included are used to further understand the embodiments of the present invention, constitute a part of the specification, are used to illustrate the embodiments of the present invention, and together with the written description, explain the principles of the present invention. Note that the drawings described below are merely some examples of the present invention, and those skilled in the art can easily imagine other drawings based on these drawings. [Figure 1] 1 is a schematic diagram of an example of a communication system according to an embodiment of the present invention; [Figure 2] 1 is a schematic diagram illustrating an example of a wireless communication method according to a first embodiment of the present invention. [Figure 3] 1 is a schematic diagram of an example of one aspect of a wireless communication method according to a first embodiment of the present invention. [Figure 4] FIG. 4 is a schematic diagram of an example of another aspect of a wireless communication method according to the first embodiment of the present invention. [Figure 5] 1 is a schematic diagram of an example of one aspect of a communication system according to a first embodiment of the present invention. [Figure 6] 1 is a schematic diagram of an example of one aspect of a wireless communication method according to a first embodiment of the present invention. [Figure 7] FIG. 2 is a schematic diagram of an example of another aspect of a communication system according to the first embodiment of the present invention. [Figure 8] FIG. 4 is a schematic diagram of an example of another aspect of a wireless communication method according to the first embodiment of the present invention. [Figure 9] FIG. 4 is a schematic diagram of an example of another aspect of a wireless communication method according to the first embodiment of the present invention. [Figure 10] FIG. 4 is a schematic diagram of an example of another aspect of a wireless communication method according to the first embodiment of the present invention. [Figure 11] FIG. 2 is a schematic diagram of an example of another aspect of a communication system according to the first embodiment of the present invention. [Figure 12] FIG. 4 is a schematic diagram of an example of another aspect of a wireless communication method according to the first embodiment of the present invention. [Figure 13] FIG. 2 is a schematic diagram of an example of another aspect of a communication system according to the first embodiment of the present invention. [Figure 14] FIG. 4 is a schematic diagram of an example of another aspect of a wireless communication method according to the first embodiment of the present invention. [Figure 15] FIG. 4 is a schematic diagram of an example of another aspect of a wireless communication method according to the first embodiment of the present invention. [Figure 16] FIG. 2 is a schematic diagram of an example of another aspect of a communication system according to the first embodiment of the present invention. [Figure 17] FIG. 4 is a schematic diagram of an example of another aspect of a wireless communication method according to the first embodiment of the present invention. [Figure 18] FIG. 2 is a schematic diagram of an example of another aspect of a communication system according to the first embodiment of the present invention. [Figure 19] FIG. 4 is a schematic diagram of an example of another aspect of a wireless communication method according to the first embodiment of the present invention. [Figure 20] FIG. 4 is a schematic diagram of an example of another aspect of a wireless communication method according to the first embodiment of the present invention. [Figure 21] FIG. 2 is a schematic diagram of an example of another aspect of a communication system according to the first embodiment of the present invention. [Figure 22] FIG. 4 is a schematic diagram of an example of another aspect of a wireless communication method according to the first embodiment of the present invention. [Figure 23] FIG. 2 is a schematic diagram of an example of another aspect of a communication system according to the first embodiment of the present invention. [Figure 24] FIG. 10 is a schematic diagram of an example of a wireless communication method according to a second embodiment of the present invention. [Figure 25] FIG. 10 is a schematic diagram illustrating an example of a wireless communication device according to a third embodiment of the present invention. [Figure 26] FIG. 10 is a schematic diagram illustrating an example of a wireless communication device according to a fourth embodiment of the present invention. [Figure 27] FIG. 10 is a schematic block diagram showing an example of a system configuration of a repeater according to a fifth embodiment of the present invention. [Figure 28] FIG. 10 is a schematic block diagram illustrating an example of a system configuration of a network device according to a sixth embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0024] The above and other features of the present invention will become apparent from the following description. In the specification and drawings, specific embodiments of the present invention are disclosed in detail, and some of the embodiments in which the principles of the present invention can be adopted are shown. However, the present invention is not limited to the described embodiments. The present invention includes all modifications, variations, and equivalents within the scope of the appended claims. Below, various embodiments of the present invention will be described with reference to the drawings. These embodiments are merely illustrative and do not limit the present invention.

[0025] In embodiments of the present invention, the terms "first," "second," etc. are used in titles to distinguish between different elements, but do not represent the spatial arrangement or temporal order of these elements, and these elements are not limited to these terms. The term "and / or" includes any and all combinations of one or more of the terms listed in the associated list. The terms "comprise," "include," "have," etc. refer to the presence of listed features, elements, elements, or components, but do not exclude the presence or addition of one or more other features, elements, elements, or components.

[0026] In the embodiments of the present invention, the singular forms "one," "the," etc., include the plural and should be understood broadly as "one kind" or "one class," and are not limited to "one." Furthermore, the term "said" should be understood to include both the singular and the plural, unless the context clearly indicates otherwise. Furthermore, the term "described in" should be understood to mean "described at least in part," and the term "based on" should be understood to mean "based at least in part," unless the context clearly indicates otherwise.

[0027] In the present embodiment, "plurality" or "plural types" means at least two or at least two types.

[0028] In embodiments of the present invention, the terms "communication network" or "wireless communication network" may refer to a network conforming to any communication standard, such as, for example, Long Term Evolution (LTE), Long Term Evolution Advanced (LTE-A, LTE-Advanced), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), etc.

[0029] Additionally, communications between devices in a communications system may occur according to any stage of communications protocol, including, but not limited to, 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and future 5G, New Radio (NR), etc., and / or other currently known or future developed communications protocols.

[0030] In an embodiment of the present invention, the term "network device" refers to a device in a communication system that allows a terminal device to access the communication system and provides a service to the terminal device, and may include, but is not limited to, a base station (BS), an access point (AP), a transmission reception point (TRP), a broadcast transmitter, a mobility management entity (MME), a gateway, a server, a radio network controller (RNC), a base station controller (BSC), etc.

[0031] Among them, the base station may include, but is not limited to, a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), a 5G base station (gNB), etc., as well as a remote radio head (RRH), a remote radio unit (RRU), a relay, or a low-power node (e.g., femto, pico, etc.). The term "base station" may include some or all of these functions, and each base station may provide communication coverage for a particular geographic area. The term "cell" may refer to a base station and / or its coverage area, depending on the context in which the term is used.

[0032] In the embodiments of the present invention, the term "User Equipment" (UE) or "Terminal Equipment" (TE) refers to a device that accesses a communication network and receives network services via, for example, a network device. The terminal device may be fixed or mobile, and may also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, etc.

[0033] Among them, the terminal device may include, but is not limited to, a mobile phone, a personal digital assistant (PDA), a wireless modulation / demodulation device, a wireless communication device, a handheld device, a machine-type communication device, a laptop computer, a cordless phone, a smartphone, a smart watch, a digital camera, etc.

[0034] For example, in a scenario such as the Internet of Things (IoT), the user equipment may be a monitoring or measuring device or apparatus, including, but not limited to, a Machine Type Communication (MTC) terminal, an in-vehicle communication terminal, a Device to Device (D2D) terminal, a Machine to Machine (M2M) terminal, etc.

[0035] In the embodiments of the present invention, the term "repeater" refers to a relay device, for example, a relay device installed in a serving cell corresponding to a network device, for forwarding transmission signals between the network device and a terminal device. The repeater may also be a repeater node.

[0036] The following describes a scenario for an embodiment of the present invention with reference to an example, but the embodiment of the present invention is not limited thereto.

[0037] 1 is a schematic diagram of an example of a communication system according to an embodiment of the present invention. As shown in FIG. 1, the communication system 100 may include a network device 101, a terminal device 102, and a repeater 103.

[0038] In an embodiment of the present invention, existing services or future services may be performed between the network device 101 and the terminal device 102. For example, these services may include, but are not limited to, enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable and low-latency communication (URLLC).

[0039] As shown in FIG. 1, the repeater 103 receives a first RF signal from the network device 101, amplifies the signal to obtain a first forwarding signal, and transmits it to the terminal device 102; and / or the repeater 103 receives a second RF signal from the terminal device 102, amplifies the signal to obtain a second forwarding signal, and transmits it to the network device 101.

[0040] Example 1 An embodiment of the present invention provides a wireless communication method applied to a repeater. Figure 2 is a schematic diagram of an example of a wireless communication method according to embodiment 1 of the present invention. As shown in Figure 2, the method may include the following steps:

[0041] Step 201: Receive instruction information from a network device, the instruction information including information about a spatial filter and / or a reference signal.

[0042] Thus, the repeater can receive and / or transmit signals to the network device and / or the terminal device using beamforming technology based on the instruction information, and / or can receive and / or transmit reference signals to the network device and / or the terminal device, and can use the beamforming information of the reference signal when transmitting and / or receiving signals, thereby improving the gain of the transmission and reception signals of the repeater, avoiding interference with neighboring cells, and improving system performance.

[0043] In the embodiment of the present invention, a "repeater" is a relay device, for example, a relay device installed in a serving cell corresponding to a network device, for transferring a transmission signal between the network device and a terminal device. Also, the repeater may be a repeater node.

[0044] For example, the repeater belongs to the serving cell corresponding to the network device.

[0045] In an embodiment of the present invention, a spatial filter may be replaced with a beam, i.e., in the present invention, both a "spatial filter" and a "beam" can represent beamforming information, and the two are equivalent concepts.

[0046] In an embodiment of the present invention, the reference signal includes at least one of an SSB, an SRS, a CSI-RS, and a repeater-specific reference signal.

[0047] In an embodiment of the present invention, the instruction information may mean at least one of instruction information regarding a spatial filter and / or a reference signal used to instruct the repeater to transmit a first signal, instruction information regarding a spatial filter and / or a reference signal used to instruct the repeater to receive a second signal, instruction information for instructing the repeater to transmit a reference signal, and instruction information for instructing the repeater to receive a reference signal.

[0048] In an embodiment of the present invention, the wireless communication method of the present invention is described as an example in which the instruction information is used to instruct the beam of the transmitted and received signals on the terminal side of the repeater, but the instruction information and the wireless communication method of the present invention may also be applied to instructions for the beam of the transmitted and received signals on the network device side of the repeater.

[0049] For example, the first signal is a first forwarding signal that forwards a signal received from a network device to a terminal device, and the second signal is a signal received from the terminal device to be forwarded.

[0050] In the embodiment of the present invention, the "signal received from the network device or terminal device" is also called the "signal to be forwarded" or the "signal used for forwarding".

[0051] For example, a signal received by a repeater from a network device is a "signal to be forwarded" or a "signal used for forwarding" to be forwarded to a terminal device, and the signal is used for communication with the terminal device. After amplifying the "signal to be forwarded" or "signal used for forwarding" with a certain gain, a first forwarding signal, i.e., a first signal, is obtained. The first forwarding signal is transmitted by the repeater to the terminal device. That is, the first forwarding signal is generated based on a downlink transmission from the network device to the repeater node.

[0052] As another example, the signal received by the repeater from the terminal device is a "signal to be forwarded" or "signal used for forwarding" to be forwarded to the network device, i.e., a second signal, which is used for communication with the network device (for communication with the BS (gNB)). The "signal to be forwarded" or "signal used for forwarding" is amplified by a certain gain to obtain a second forwarding signal. The second forwarding signal is transmitted to the network device by the repeater. That is, the second forwarding signal is generated based on an uplink transmission from the terminal device to the repeater node.

[0053] In an embodiment of the present invention, the instruction information for instructing the repeater to transmit a reference signal may include instruction information regarding a spatial filter and / or a reference signal to be used to instruct the repeater to transmit a reference signal.

[0054] In an embodiment of the present invention, the instruction information for instructing the repeater to receive a reference signal may include instruction information regarding a spatial filter and / or a reference signal used to instruct the repeater to receive a reference signal.

[0055] In an embodiment of the present invention, the instruction information includes information regarding the spatial filter and / or the reference signal, for example, the information regarding the spatial filter and / or the reference signal includes at least one of a spatial filter index and / or a beam index, a reference signal index, the number of antenna ports of the reference signal, antenna polarization information, beam width information, and beam direction information.

[0056] In an embodiment of the present invention, the spatial filter may be implicitly indicated by at least one of a spatial filter index, a beam index, and a reference signal index.

[0057] For example, the network device may indicate only the index of the spatial filter, beam, or reference signal to be used, and the repeater may determine the specific spatial filter to be used based on the index. In this case, for example, the repeater may receive a CSI-RS configuration, which is not used for CSI-RS reception and CSI-RS transmission, but is used by the repeater to determine the spatial filter to be used.

[0058] In an embodiment of the present invention, a spatial filter may be explicitly specified by antenna polarization information, beam width information, and beam direction information. In other words, the repeater specifies a specific spatial filter by antenna polarization information, beam width information, and beam direction information.

[0059] For example, the number of antenna ports for the reference signal is one or two.

[0060] For example, the antenna polarization information includes single polarization or multiple polarizations.

[0061] In an embodiment of the present invention, the above two points may be combined. That is, the number of antenna ports of a reference signal and antenna polarization information may be combined or corresponded to each other. For example, a number of antenna ports of one corresponds to a single-polarized antenna, and a number of antenna ports of two corresponds to a dual-polarized antenna. Alternatively, if the repeater antenna is single-polarized, the number of antenna ports of the corresponding reference signal is one, and if the repeater antenna is dual-polarized, the number of antenna ports of the corresponding reference signal is two.

[0062] For example, the beamwidth information includes the number of antenna ports in a first dimension, n1, and the number of antenna ports in a second dimension, n2, where the first dimension is, for example, the horizontal dimension and the second dimension is, for example, the vertical dimension.

[0063] where n1≦N1, n2≦N2, N1 and N2 are the maximum number of antenna ports in the first dimension supported by the repeater and the maximum number of antenna ports in the second dimension supported by the repeater, respectively.

[0064] For example, the beam direction information includes a codebook index.

[0065] For example, the repeater may configure one or more candidate codebook indexes, each corresponding to one angle of departure or one antenna transmission phase. The network device transmits a codebook index indication to the repeater, the indication corresponding to one or more of the candidate codebook indexes. The terminal device then determines the spatial domain filter (e.g., beam direction and / or beam width) to be used for transmitting or receiving a signal based on the indicated codebook index.

[0066] In an embodiment of the present invention, after receiving the instruction information, the repeater may transmit a first signal and / or receive a second signal based on the instruction information.

[0067] In an embodiment of the present invention, for example, the first module of the repeater receives higher level instruction information from the network device.

[0068] In an embodiment of the present invention, the first module corresponds to a module of a terminal device, for example, the first module may be referred to as a mobile terminal (MT) module.

[0069] In an embodiment of the present invention, the repeater may forward a signal through a second module, which may amplify the received analog signal with a certain gain and forward the amplified signal. For example, the second module may include a network-side transceiver, a terminal-side transceiver, and a signal amplification circuit. As another example, the second module may be referred to as a radio unit (RU) module.

[0070] 3 is a schematic diagram of an example of one aspect of a wireless communication method according to Example 1 of the present invention. As shown in FIG. 3, the method includes the following steps:

[0071] Step 301: Receive instruction information from a network device, where the instruction information includes information about a spatial filter and / or a reference signal.

[0072] Step 302: Transmit a first signal and / or receive a second signal using a spatial filter corresponding to the indication.

[0073] In an embodiment of the present invention, the "spatial filter corresponding to the instruction information" means a spatial filter determined based on the instruction information. For example, as described above, the spatial filter corresponding to the instruction information may be determined implicitly or explicitly.

[0074] In step 302, a spatial filter corresponding to the instruction information may be used to transmit a first signal, i.e., a first forwarding signal that forwards a signal received from a network device to a terminal device, and / or a spatial filter corresponding to the instruction information may be used to receive a second signal, i.e., a signal to be forwarded that is received from a terminal device.

[0075] 4 is a schematic diagram of an example of another aspect of a wireless communication method according to Example 1 of the present invention. As shown in FIG. 4, the method includes the following steps:

[0076] Step 401: Receive instruction information from a network device, where the instruction information includes information about a spatial filter and / or a reference signal.

[0077] Step 402: Receive a signal from a network device.

[0078] Step 403: Amplify the signal received from the network device with a certain gain to obtain or generate a first signal, ie, a first transfer signal.

[0079] Step 404: Send a first signal to the terminal device using a spatial filter corresponding to the indication information.

[0080] In the embodiment of the present invention, the execution order of step 401 and step 402 is not limited, and both steps may be executed in parallel or sequentially.

[0081] In an embodiment of the present invention, as shown in FIG. 4, the method may further include the following steps:

[0082] Step 405: Send reporting information to the network device, where the reporting information includes information about the capability of the repeater, for example, parameters for repeater capability.

[0083] In an embodiment of the present invention, the reported information is used by the network device to determine a scheduling and / or indication scheme corresponding to the capabilities of the repeater, for example, to indicate the spatial domain filter or beam or beamforming method to be used by the repeater.

[0084] For example, the report information includes at least one of the maximum number of beams supported by the repeater and antenna information of the repeater.

[0085] For example, the maximum number of beams supported by the repeater refers to the upper limit of candidate beams that the repeater's hardware can support. The maximum number of beams supported by the repeater is, for example, the maximum number of beams supported by the repeater's terminal-side transmitter or transceiver. The repeater's antenna information is, for example, the antenna information of the repeater's terminal-side transmitter or transceiver.

[0086] For example, the maximum number of beams supported by the repeater includes at least one of the maximum number of candidate spatial filters (maximum number of candidate spatial filters) or the maximum number of candidate beams (maximum number of candidate beams), and the maximum number of candidate spatial filter reference signals (maximum number of candidate spatial filter RSs) or the maximum number of candidate beam reference signals (maximum number of candidate beam RSs).

[0087] For example, the maximum number of candidate spatial filter reference signals or candidate beam reference signals includes the maximum number of antenna ports for the candidate spatial filter reference signals (maximum number antenna ports for candidate spatial filter RS) or the maximum number of antenna ports for candidate beam reference signals (maximum number antenna ports for candidate beam RS). For example, if the repeater supports a cross-polarized antenna architecture, the maximum number of antenna ports is 2. For example, if the repeater does not support a cross-polarized antenna architecture, the maximum number of antenna ports is 1.

[0088] For example, the repeater antenna information includes at least one of antenna panel information, antenna polarization information, and antenna dimension information.

[0089] For example, the antenna panel information includes single panel, multi-panel, or the number of antenna panels.

[0090] For example, the antenna polarization information includes cross polarization or single polarization.

[0091] For example, the antenna dimension information includes the number of antenna ports in two dimensions supported by the repeater, i.e., the maximum number of antenna ports in a first dimension N1 supported by the repeater and the maximum number of antenna ports in a second dimension N2 supported by the repeater, for example, the first dimension is the horizontal dimension and the second dimension is the vertical dimension.

[0092] Also, the antenna dimension information corresponds to the antenna panel, ie, there is one corresponding N1, N2 for each antenna panel, or all the antenna panels correspond to the same N1, N2.

[0093] In an embodiment of the present invention, as shown in FIG. 4, the method may further include the following steps:

[0094] Step 406: The repeater establishes a connection with the network device.

[0095] For example, the eighth module of the repeater establishes a connection with a network device. For example, the process of establishing a connection is similar to the method established by an NR terminal and a network.

[0096] In an embodiment of the present invention, the eighth module may be the same module as the first module.

[0097] The following describes the method shown in Fig. 4 with reference to an example: Fig. 5 is a schematic diagram of an example of one aspect of a communication system according to a first embodiment of the present invention.

[0098] As shown in FIG. 5, first, the repeater 103 establishes a connection with the network device 101. Next, the repeater 103 transmits report information to the network device 101. Next, the network device 101 transmits instruction information and a first RF signal to the repeater 103. The repeater 103 receives the first RF signal via a network-side receiver, amplifies the signal with a certain gain, and obtains a first forwarding signal. The repeater 103 transmits the first forwarding signal to the terminal device 102 via a terminal-side transmitter using a spatial filter corresponding to the instruction information. Next, the repeater 103 may receive a second RF signal, i.e., a signal to be forwarded to the network device 101, from the terminal device 102 via the terminal-side receiver using a spatial filter corresponding to the instruction information (i.e., a spatial filter that transmits the first forwarding signal, utilizing reciprocity between uplink and downlink).

[0099] 6 is a schematic diagram of an example of one aspect of a wireless communication method according to Example 1 of the present invention. As shown in FIG. 6, the method includes the following steps:

[0100] Step 601: The repeater establishes a connection with the network device.

[0101] Step 602: Send reporting information to the network device, where the reporting information includes information about the capabilities of the repeater.

[0102] Step 603: Receive instruction information from a network device, where the instruction information includes information about a spatial filter and / or a reference signal.

[0103] Step 604: Receive a second signal from the terminal device using a spatial filter corresponding to the indication information.

[0104] Step 605: Amplify the second signal with a certain gain to obtain or generate a second transmitted signal.

[0105] Step 606: Send the second transfer signal to the network device.

[0106] In the embodiment of the present invention, there is no limitation to the execution order of step 603 and step 604, and both may be executed in parallel or sequentially.

[0107] For specific implementation methods of the above steps 601 to 606, refer to the relevant steps in FIG. 4, and the description thereof will be omitted here.

[0108] The following describes the method shown in Fig. 6 with reference to an example: Fig. 7 is a schematic diagram of an example of another aspect of a communication system according to the first embodiment of the present invention.

[0109] As shown in FIG. 7, first, the repeater 103 establishes a connection with the network device 101. Next, the repeater 103 transmits report information to the network device 101. Next, the network device 101 transmits instruction information to the repeater 103. The repeater 103 receives a second signal, i.e., a second RF signal, from the terminal device 102 via a terminal-side receiver using a spatial filter corresponding to the instruction information. The repeater 103 amplifies the second signal with a certain gain to obtain a second transport signal. Next, the repeater 103 transmits the second transport signal to the network device 101. The repeater 103 may also transmit a first signal, i.e., a first transport signal, to the terminal device 102 via a terminal-side transmitter using a spatial filter corresponding to the instruction information (i.e., a spatial filter that receives a first signal and utilizes reciprocity between uplink and downlink).

[0110] In an embodiment of the present invention, the instruction information includes information about a spatial filter and / or a reference signal, for example, the information about the reference signal includes configuration information of the reference signal, so that the repeater transmits and / or receives the reference signal, for example, transmits the reference signal to a terminal device and / or receives the reference signal from the terminal device.

[0111] For example, the reference signal includes at least one of an SSB, an SRS, a CSI-RS, and a repeater-specific reference signal.

[0112] For example, the reference signal corresponds to an uplink or downlink transmission from the repeater node to UEs.

[0113] For example, the reference signal is used for communication with UEs.

[0114] 8 is a schematic diagram of another example of a wireless communication method according to the first embodiment of the present invention. As shown in FIG. 8, the method includes the following steps:

[0115] Step 801: Receive instruction information from a network device, the instruction information including information about a spatial filter and / or a reference signal.

[0116] Step 802: Transmit and / or receive a reference signal based on the indication information.

[0117] In step 802, a reference signal is transmitted and / or received, for example, based on a spatial filter corresponding to the indication.

[0118] In an embodiment of the present invention, for example, a third module of the repeater transmits and / or receives a reference signal based on the instruction information, and the third module corresponds to a communication module of a network device, and may be referred to as a distributed unit (DU).

[0119] In step 802, transmit and / or receive a reference signal based on the indication information, for example, transmit a reference signal to the terminal device based on the indication information and / or receive a reference signal from the terminal device based on the indication information. Each situation will be described in detail below.

[0120] 9 is a schematic diagram of an example of another aspect of a wireless communication method according to Example 1 of the present invention. As shown in FIG. 9, the method includes the following steps:

[0121] Step 901: The repeater establishes a connection with the network device.

[0122] Step 902: Send reporting information to the network device, where the reporting information includes information about the capabilities of the repeater.

[0123] Step 903: Receive instruction information from a network device, where the instruction information includes information about a spatial filter and / or a reference signal.

[0124] Step 904: Transmit a first reference signal to the terminal device based on the indication information.

[0125] Step 905: Using the spatial filter determined based on the first reference signal, transmit a first signal to a terminal device and / or receive a second signal from the terminal device.

[0126] In step 905, a first signal is transmitted to the terminal device and / or a second signal is received from the terminal device, for example, using the same spatial filter as that used to transmit the first reference signal. The following will specifically describe the transmission of the first signal and the reception of the second signal.

[0127] 10 is a schematic diagram of an example of another aspect of a wireless communication method according to Example 1 of the present invention. As shown in FIG. 10, the method includes the following steps:

[0128] Step 1001: The repeater establishes a connection with the network device.

[0129] Step 1002: Send reporting information to the network device, where the reporting information includes information about the capabilities of the repeater.

[0130] Step 1003: Receive instruction information from a network device, where the instruction information includes information about a spatial filter and / or a reference signal.

[0131] Step 1004: Transmit a first reference signal to the terminal device based on the indication information.

[0132] Step 1005: Receive a first RF signal from a network device.

[0133] Step 1006: Amplify the first RF signal with a certain gain to obtain or generate a first signal, ie, a first transfer signal.

[0134] Step 1007: Transmit a first signal to a terminal device using the same spatial filter as that used to transmit the first reference signal.

[0135] The following describes the method shown in Fig. 10 with reference to an example: Fig. 11 is a schematic diagram of an example of another aspect of a communication system according to the first embodiment of the present invention.

[0136] As shown in FIG. 11 , first, the repeater 103 establishes a connection with the network device 101. Next, the repeater 103 transmits report information to the network device 101. Next, the network device 101 transmits instruction information to the repeater 103. Next, the third module of the repeater 103 transmits a first reference signal to the terminal device 102 using a spatial filter corresponding to the instruction. The repeater 103 receives the first RF signal from the network device 101 via a network-side receiver, amplifies the signal with a certain gain, and obtains a first signal, i.e., a first forwarding signal. In addition, the repeater 103 transmits the first forwarding signal to the terminal device 102 using the same spatial filter as the spatial filter used to transmit the first reference signal via the terminal-side transmitter.

[0137] 12 is a schematic diagram of an example of another aspect of a wireless communication method according to Example 1 of the present invention. As shown in FIG. 12, the method includes the following steps:

[0138] Step 1201: The repeater establishes a connection with the network device.

[0139] Step 1202: Send reporting information to the network device, where the reporting information includes information about the capabilities of the repeater.

[0140] Step 1203: Receive instruction information from a network device, where the instruction information includes information about a spatial filter and / or a reference signal.

[0141] Step 1204: Transmit a first reference signal to the terminal device based on the indication information.

[0142] Step 1205: Receive a second signal, ie, a second RF signal, from a terminal device using the same spatial filter as that used to transmit the first reference signal.

[0143] Step 1206: Amplify the second RF signal with a certain gain to obtain or generate a second transfer signal.

[0144] Step 1207: Send a second transfer signal to the network device.

[0145] The following describes the method shown in Fig. 12 with reference to an example: Fig. 13 is a schematic diagram of an example of another aspect of a communication system according to the first embodiment of the present invention.

[0146] As shown in FIG. 13, first, the repeater 103 establishes a connection with the network device 101. Next, the repeater 103 transmits report information to the network device 101. Next, the network device 101 transmits instruction information to the repeater 103. The third module of the repeater 103 transmits a first reference signal to the terminal device 102 using a spatial filter corresponding to the instruction. The repeater 103 receives a second signal, i.e., a second RF signal, from the terminal device 102 using the same spatial filter as the spatial filter used to transmit the first reference signal, amplifies the signal with a certain gain, and obtains a second forwarded signal. In addition, the repeater 103 transmits the second forwarded signal to the network device 101 via the network-side transmitter.

[0147] 14 is a schematic diagram of an example of another aspect of a wireless communication method according to Example 1 of the present invention. As shown in FIG. 14, the method includes the following steps:

[0148] Step 1401: The repeater establishes a connection with the network device.

[0149] Step 1402: Send reporting information to the network device, where the reporting information includes information about the capabilities of the repeater.

[0150] Step 1403: Receive instruction information from a network device, where the instruction information includes information about a spatial filter and / or a reference signal.

[0151] Step 1404: Receive a second reference signal from the terminal device based on the indication information.

[0152] Step 1405: Using the spatial filter determined based on the second reference signal, transmit a first signal to a terminal device and / or receive a second signal from the terminal device.

[0153] In step 1405, a first signal is transmitted to the terminal device and / or a second signal is received from the terminal device, for example, using the same spatial filter as that used to receive the second reference signal. The following will specifically describe the transmission of the first signal and the reception of the second signal.

[0154] 15 is a schematic diagram of an example of another aspect of a wireless communication method according to Example 1 of the present invention. As shown in FIG. 15, the method includes the following steps:

[0155] Step 1501: The repeater establishes a connection with the network device.

[0156] Step 1502: Send reporting information to the network device, where the reporting information includes information about the capabilities of the repeater.

[0157] Step 1503: Receive instruction information from a network device, where the instruction information includes information about a spatial filter and / or a reference signal.

[0158] Step 1504: Receive a second reference signal from the terminal device based on the indication information.

[0159] Step 1505: Receive a first RF signal from a network device.

[0160] Step 1506: Amplify the first RF signal with a certain gain to obtain or generate a first signal, ie, a first transfer signal.

[0161] Step 1507: Transmit a first signal to a terminal device using the same spatial filter as that used to receive the second reference signal.

[0162] The following describes the method shown in Fig. 15 with reference to an example: Fig. 16 is a schematic diagram of an example of another aspect of the communication system according to the first embodiment of the present invention.

[0163] As shown in FIG. 16, first, the repeater 103 establishes a connection with the network device 101. Next, the repeater 103 transmits report information to the network device 101. Next, the network device 101 transmits instruction information to the repeater 103. The third module of the repeater 103 receives a second reference signal from the terminal device 102 using a spatial filter corresponding to the instruction. The repeater 103 receives the first RF signal from the network device 101 via the network-side receiver, amplifies the signal with a certain gain, and obtains a first signal, i.e., a first forwarding signal. Furthermore, the repeater 103 transmits a first forwarding signal to the terminal device 102 via the terminal-side transmitter using the same spatial filter as the spatial filter used to receive the second reference signal.

[0164] 17 is a schematic diagram of an example of another aspect of a wireless communication method according to Example 1 of the present invention. As shown in FIG. 17, the method includes the following steps:

[0165] Step 1701: The repeater establishes a connection with the network device.

[0166] Step 1702: Send reporting information to the network device, where the reporting information includes information about the capabilities of the repeater.

[0167] Step 1703: Receive instruction information from a network device, where the instruction information includes information about a spatial filter and / or a reference signal.

[0168] Step 1704: Receive a second reference signal from the terminal device based on the indication information.

[0169] Step 1705: Receive a second signal, that is, a second RF signal, from the terminal device using the same spatial filter as that used to receive the second reference signal.

[0170] Step 1706: Amplify the second RF signal with a certain gain to obtain or generate a second transfer signal.

[0171] Step 1707: Send a second transfer signal to the network device.

[0172] The following describes the method shown in Fig. 17 with reference to an example: Fig. 18 is a schematic diagram of an example of another aspect of the communication system according to the first embodiment of the present invention.

[0173] As shown in FIG. 18, first, the repeater 103 establishes a connection with the network device 101. Next, the repeater 103 transmits report information to the network device 101. The network device 101 transmits instruction information to the repeater 103. The third module of the repeater 103 receives a second reference signal from the terminal device 102 using a spatial filter corresponding to the instruction. The repeater 103 receives a second signal, i.e., a second RF signal, from the terminal device 102 using the same spatial filter as that used to receive the second reference signal, and amplifies the second signal with a certain gain to obtain a second transport signal. The repeater 103 also transmits the second transport signal to the network device 101 via the network-side transmitter.

[0174] 19 is a schematic diagram of an example of another aspect of a wireless communication method according to Example 1 of the present invention. As shown in FIG. 19, the method includes the following steps:

[0175] Step 1901: The repeater establishes a connection with the network device.

[0176] Step 1902: Send reporting information to the network device, where the reporting information includes information about the capabilities of the repeater.

[0177] Step 1903: Receive instruction information from a network device, where the instruction information includes information about a spatial filter and / or a reference signal.

[0178] Step 1904: Receive at least two third reference signals based on the indication information.

[0179] Step 1905: Using the spatial filter determined based on the at least two third reference signals, transmit a first signal to a terminal device and / or receive a second signal from the terminal device.

[0180] In step 1904, the at least two received third reference signals are from different terminal devices.

[0181] In step 1905, a first signal is transmitted to a terminal device and / or a second signal is received from the terminal device using the spatial filter determined based on the at least two third reference signals. The embodiment of the present invention is not limited to a specific method for determining the spatial filter based on the at least two third reference signals.

[0182] The transmission of the first signal and the reception of the second signal will be specifically described below.

[0183] 20 is a schematic diagram of an example of another aspect of a wireless communication method according to Example 1 of the present invention. As shown in FIG. 20, the method includes the following steps:

[0184] Step 2001: The repeater establishes a connection with the network device.

[0185] Step 2002: Send reporting information to the network device, where the reporting information includes information about the capabilities of the repeater.

[0186] Step 2003: Receive instruction information from a network device, where the instruction information includes information about a spatial filter and / or a reference signal.

[0187] Step 2004: Receive at least two third reference signals from different terminal devices based on the indication information.

[0188] Step 2005: Receive a first RF signal from a network device.

[0189] Step 2006: Amplify the first RF signal with a certain gain to obtain or generate a first signal, ie, a first transfer signal.

[0190] Step 2007: Transmit a first signal to a terminal device using the spatial filter determined based on the at least two third reference signals, for example, transmit the first signal to at least one of a plurality of terminal devices.

[0191] The method shown in Fig. 20 will be described below with reference to an example. Fig. 21 is a schematic diagram of an example of another aspect of the communication system according to the first embodiment of the present invention.

[0192] As shown in FIG. 21 , first, the repeater 103 establishes a connection with the network device 101. Next, the repeater 103 transmits report information to the network device 101. The network device 101 transmits instruction information to the repeater 103. A third module of the repeater 103 receives third reference signals from the terminal devices 102-1 and 102-2 using a spatial filter corresponding to the instruction. The repeater 103 receives a first RF signal from the network device 101 via a network-side receiving unit, amplifies the first RF signal with a certain gain, and obtains a first forwarding signal. Furthermore, the repeater 103 transmits a first forwarding signal to at least one of the terminal devices 102-1 and 102-2 via a terminal-side transmitting unit using a spatial filter determined based on the two third reference signals.

[0193] 22 is a schematic diagram of an example of another aspect of a wireless communication method according to Example 1 of the present invention. As shown in FIG. 22, the method includes the following steps:

[0194] Step 2201: The repeater establishes a connection with the network device.

[0195] Step 2202: Send reporting information to the network device, where the reporting information includes information about the capabilities of the repeater.

[0196] Step 2203: Receive instruction information from a network device, where the instruction information includes information about a spatial filter and / or a reference signal.

[0197] Step 2204: Receive at least two third reference signals from different terminal devices based on the indication information.

[0198] Step 2205: Receive a second signal, that is, a second RF signal, from the terminal device using the spatial filter determined based on the at least two third reference signals.

[0199] Step 2206: Amplify the second RF signal with a certain gain to obtain or generate a second transfer signal.

[0200] Step 2207: Send a second transfer signal to the network device.

[0201] In step 2205, the second signal is from at least one terminal device of a plurality of terminal devices.

[0202] The method shown in Fig. 22 will be described below with reference to an example: Fig. 23 is a schematic diagram of an example of another aspect of the communication system according to the first embodiment of the present invention.

[0203] As shown in FIG. 23, first, the repeater 103 establishes a connection with the network device 101. Next, the repeater 103 transmits report information to the network device 101. The network device 101 transmits instruction information to the repeater 103. The third module of the repeater 103 receives second reference signals from the two terminal devices 102-1 and 102-2 using a spatial filter corresponding to the instruction. The repeater 103 receives a second signal, i.e., a second RF signal, from the terminal device 102 using the same spatial filter as that used to receive the second reference signal, and amplifies the signal with a certain gain to obtain a second forwarding signal. The repeater 103 also transmits the second forwarding signal to the network device 101 via a network-side transmitter.

[0204] According to this embodiment, the repeater receives instruction information from the network device, including information about the spatial filter and / or the reference signal. Therefore, the repeater can receive and / or transmit signals to the network device and / or the terminal device using beamforming technology based on the instruction information, and / or can receive and / or transmit reference signals to the network device and / or the terminal device, and can use the beamforming information of the reference signal when transmitting and / or receiving signals. Therefore, the gain of the transmission and reception signals of the repeater can be improved, and interference with neighboring cells can be avoided, thereby improving system performance.

[0205] <Example 2> A second embodiment of the present invention further provides a wireless communication method applied to a network device side, which corresponds to the wireless communication method applied to a repeater side according to the first embodiment, and the overlapping description of the similar contents will be omitted.

[0206] 24 is a schematic diagram of an example of a wireless communication method according to Example 2 of the present invention. As shown in FIG. 24, the method includes the following steps:

[0207] Step 2401: Send instruction information to a repeater, where the instruction information includes information about a spatial filter and / or a reference signal.

[0208] In an embodiment of the present invention, the repeater belongs to a serving cell corresponding to the network device.

[0209] In an embodiment of the present invention, the instruction information means at least one of instruction information regarding a spatial filter and / or a reference signal used to instruct the repeater to transmit a first signal, instruction information regarding a spatial filter and / or a reference signal used to instruct the repeater to receive a second signal, instruction information for instructing the repeater to transmit a reference signal, and instruction information for instructing the repeater to receive a reference signal.

[0210] In an embodiment of the present invention, the first signal is a first forwarding signal that forwards a signal received from a network device to a terminal device, and the second signal is a signal to be forwarded that is received from the terminal device.

[0211] In an embodiment of the present invention, the instruction information for instructing the repeater to transmit a reference signal includes instruction information regarding a spatial filter and / or a reference signal to be used to instruct the repeater to transmit a reference signal.

[0212] In an embodiment of the present invention, the instruction information for instructing the repeater to receive a reference signal includes instruction information regarding a spatial filter and / or a reference signal to be used to instruct the repeater to receive a reference signal.

[0213] In an embodiment of the present invention, the information about the spatial filter and / or reference signal includes at least one of a spatial filter index and / or a beam index, a reference signal index, the number of antenna ports of the reference signal, antenna polarization information, beam width information, and beam direction information.

[0214] In an embodiment of the present invention, the number of antenna ports of the reference signal is one or two.

[0215] In an embodiment of the present invention, the antenna polarization information includes single polarization or multiple polarizations.

[0216] In an embodiment of the present invention, the beamwidth information includes the number of antenna ports in a first dimension and the number of antenna ports in a second dimension.

[0217] In an embodiment of the present invention, the beam direction information includes a codebook index.

[0218] In an embodiment of the present invention, the codebook index corresponds to an emission angle or an antenna transmission phase.

[0219] In an embodiment of the present invention, as shown in FIG. 24, the method further includes the following steps:

[0220] Step 2402: Receive report information from the repeater, where the report information includes information about the capabilities of the repeater.

[0221] Step 2403: Determine a scheduling and / or indication scheme corresponding to the repeater's capabilities based on the reported information.

[0222] In an embodiment of the present invention, the report information includes at least one of the maximum number of beams supported by the repeater and antenna information of the repeater.

[0223] In an embodiment of the present invention, the maximum number of beams supported by the repeater includes at least one of a maximum number of candidate spatial filters or candidate beams, and a maximum number of candidate spatial filter reference signals or candidate beam reference signals.

[0224] In an embodiment of the present invention, the maximum number of candidate spatial filter reference signals or candidate beam reference signals includes the maximum number of antenna ports for the candidate spatial filter reference signals or candidate beam reference signals.

[0225] In an embodiment of the present invention, the repeater antenna information includes at least one of antenna panel information, antenna polarization information, and antenna dimension information.

[0226] In an embodiment of the present invention, as shown in FIG. 24, the method further includes the following steps:

[0227] Step 2404: The network device establishes a connection with the repeater.

[0228] In an embodiment of the present invention, the repeater may be a relay device.

[0229] In an embodiment of the present invention, the repeater may be a repeater node.

[0230] For the specific implementation of the above method, please refer to the description in the first embodiment, and the detailed description will be omitted here.

[0231] According to this embodiment, the network device transmits instruction information to the repeater, the instruction information including information about the spatial filter and / or the reference signal. Therefore, the repeater can receive and / or transmit signals to the network device and / or the terminal device using beamforming technology based on the instruction information, and / or can receive and / or transmit reference signals to the network device and / or the terminal device, and can use the beamforming information of the reference signal when transmitting and / or receiving signals. Therefore, the gain of the transmitted and received signals of the repeater can be improved, and interference to adjacent cells can be avoided, thereby improving system performance.

[0232] Example 3 The third embodiment of the present invention provides a wireless communication device applied to a repeater. The solution principle of the device is the same as that of the first embodiment, so the specific implementation may refer to the first embodiment, and the same or related content will not be described again.

[0233] 25 is a schematic diagram of an example of a wireless communication device according to Example 3 of the present invention. As shown in FIG. 25, a wireless communication device 2500 includes the following modules:

[0234] The first module 2501 receives instruction information from a network device, the instruction information including information about a spatial filter and / or a reference signal.

[0235] In the embodiment of the present invention, the first module 2501 corresponds to a module of a terminal device, and may be referred to as a mobile terminal (MT) module, for example.

[0236] In an embodiment of the present invention, the repeater belongs to a serving cell corresponding to the network device.

[0237] In an embodiment of the present invention, the instruction information means at least one of instruction information regarding a spatial filter and / or a reference signal used to instruct the repeater to transmit a first signal, instruction information regarding a spatial filter and / or a reference signal used to instruct the repeater to receive a second signal, instruction information for instructing the repeater to transmit a reference signal, and instruction information for instructing the repeater to receive a reference signal.

[0238] In an embodiment of the present invention, the first signal is a first forwarding signal that forwards a signal received from a network device to a terminal device, and the second signal is a signal to be forwarded that is received from the terminal device.

[0239] In an embodiment of the present invention, the instruction information for instructing the repeater to transmit a reference signal includes instruction information regarding a spatial filter and / or a reference signal to be used to instruct the repeater to transmit a reference signal.

[0240] In an embodiment of the present invention, the instruction information for instructing the repeater to receive a reference signal includes instruction information regarding a spatial filter and / or a reference signal to be used to instruct the repeater to receive a reference signal.

[0241] In an embodiment of the present invention, the information about the spatial filter and / or reference signal includes at least one of a spatial filter index and / or a beam index, a reference signal index, the number of antenna ports of the reference signal, antenna polarization information, beam width information, and beam direction information.

[0242] In an embodiment of the present invention, the number of antenna ports of the reference signal is one or two.

[0243] In an embodiment of the present invention, the antenna polarization information includes single polarization or multiple polarizations.

[0244] In an embodiment of the present invention, the beamwidth information includes the number of antenna ports in a first dimension and the number of antenna ports in a second dimension.

[0245] In an embodiment of the present invention, the beam direction information includes a codebook index.

[0246] In an embodiment of the present invention, the codebook index corresponds to an emission angle or an antenna transmission phase.

[0247] In an embodiment of the present invention, as shown in FIG. 25, the wireless communication device 2500 further includes the following modules:

[0248] The second module 2502 transmits a first signal and / or receives a second signal using a spatial filter corresponding to the indication.

[0249] In an embodiment of the present invention, the second module 2502 may amplify the received analog signal with a certain gain and transmit the amplified signal. For example, the second module 2502 includes a network-side transceiver, a terminal-side transceiver, and a signal amplification circuit.

[0250] In an embodiment of the present invention, the information about the reference signal includes configuration information of the reference signal.

[0251] In an embodiment of the present invention, as shown in FIG. 25, the wireless communication device 2500 further includes the following modules:

[0252] A third module 2503 transmits and / or receives a reference signal based on the indication information.

[0253] In the embodiment of the present invention, the third module corresponds to a communication module of a network device, and may be referred to as a mobile distributed unit (DU), for example.

[0254] In an embodiment of the present invention, the third module 2503 may transmit and / or receive a reference signal based on a spatial filter corresponding to the indication information.

[0255] In an embodiment of the present invention, the third module 2503 may send a first reference signal to the terminal device according to the indication information.

[0256] In an embodiment of the present invention, the device may further include the following modules:

[0257] The fourth module transmits a first signal to the terminal device and / or receives a second signal from the terminal device using a spatial filter determined based on the first reference signal.

[0258] For example, the fourth module and the second module 2502 may be the same module.

[0259] For example, the fourth module transmits a first signal to a terminal device and / or receives a second signal from the terminal device using the same spatial filter as the spatial filter used to transmit the first reference signal.

[0260] In an embodiment of the present invention, the third module 2503 may receive a second reference signal from the terminal device according to the indication information.

[0261] In an embodiment of the present invention, the device may further include the following modules:

[0262] The fifth module transmits a first signal to the terminal device and / or receives a second signal from the terminal device using a spatial filter determined based on the second reference signal.

[0263] For example, the fifth module and the second module 2502 may be the same module.

[0264] For example, the fifth module transmits a first signal to a terminal device and / or receives a second signal from the terminal device using the same spatial filter as the spatial filter used to receive the second reference signal.

[0265] In an embodiment of the present invention, the third module 2503 may receive at least two third reference signals according to the indication information.

[0266] For example, the at least two third reference signals are from different terminal devices.

[0267] In an embodiment of the present invention, the device may further include the following modules:

[0268] The sixth module transmits a first signal to the terminal device and / or receives a second signal from the terminal device using a spatial filter determined based on the at least two third reference signals.

[0269] For example, the sixth module and the second module 2502 may be the same module.

[0270] In an embodiment of the present invention, the reference signal corresponds to a downlink transmission from the repeater to a terminal device.

[0271] In an embodiment of the present invention, the reference signal is used for communication with a terminal device.

[0272] In an embodiment of the present invention, the reference signal includes at least one of an SSB, an SRS, a CSI-RS, and a repeater-specific reference signal.

[0273] In an embodiment of the present invention, the device may further include the following modules:

[0274] A seventh module transmits reporting information to the network device, the reporting information including information about the capabilities of the repeater.

[0275] For example, the seventh module and the first module 2501 may be the same module.

[0276] In an embodiment of the present invention, the reported information is used by the network device to determine a scheduling and / or indication scheme that corresponds to the capabilities of the repeater.

[0277] In an embodiment of the present invention, the report information includes at least one of the maximum number of beams supported by the repeater and antenna information of the repeater.

[0278] In an embodiment of the present invention, the maximum number of beams supported by the repeater includes at least one of a maximum number of candidate spatial filters or candidate beams, and a maximum number of candidate spatial filter reference signals or candidate beam reference signals.

[0279] In an embodiment of the present invention, the maximum number of candidate spatial filter reference signals or candidate beam reference signals includes the maximum number of antenna ports for the candidate spatial filter reference signals or candidate beam reference signals.

[0280] In an embodiment of the present invention, the repeater antenna information includes at least one of antenna panel information, antenna polarization information, and antenna dimension information.

[0281] In an embodiment of the present invention, the device may further include the following modules:

[0282] An eighth module establishes a connection with the network device.

[0283] For example, the eighth module and the first module 2501 may be the same module.

[0284] For example, the repeater is a relay device.

[0285] For example, the repeater is a repeater node.

[0286] According to this embodiment, the repeater receives instruction information from the network device, including information about the spatial filter and / or the reference signal. Therefore, the repeater can receive and / or transmit signals to the network device and / or the terminal device using beamforming technology based on the instruction information, and / or can receive and / or transmit reference signals to the network device and / or the terminal device, and can use the beamforming information of the reference signal when transmitting and / or receiving signals. Therefore, the gain of the transmission and reception signals of the repeater can be improved, and interference with neighboring cells can be avoided, thereby improving system performance.

[0287] Example 4 The fourth embodiment of the present invention provides a wireless communication device applied to a network device side. The solution principle of the device is the same as that of the method of the second embodiment, so that the specific implementation may refer to the method of the second embodiment, and the same or related content will not be described again.

[0288] 26 is a schematic diagram of an example of a wireless communication device according to Example 4 of the present invention. As shown in FIG. 26, a wireless communication device 2600 includes the following modules:

[0289] A ninth module 2601 transmits instruction information to the repeater, the instruction information including information about the spatial filter and / or the reference signal.

[0290] In an embodiment of the present invention, the repeater belongs to a serving cell corresponding to the network device.

[0291] In an embodiment of the present invention, the instruction information means at least one of instruction information regarding a spatial filter and / or a reference signal used to instruct the repeater to transmit a first signal, instruction information regarding a spatial filter and / or a reference signal used to instruct the repeater to receive a second signal, instruction information for instructing the repeater to transmit a reference signal, and instruction information for instructing the repeater to receive a reference signal.

[0292] In an embodiment of the present invention, the first signal is a first forwarding signal that forwards a signal received from a network device to a terminal device, and the second signal is a signal to be forwarded that is received from the terminal device.

[0293] In an embodiment of the present invention, the instruction information for instructing the repeater to transmit a reference signal includes instruction information regarding a spatial filter and / or a reference signal to be used to instruct the repeater to transmit a reference signal.

[0294] In an embodiment of the present invention, the instruction information for instructing the repeater to receive a reference signal includes instruction information regarding a spatial filter and / or a reference signal to be used to instruct the repeater to receive a reference signal.

[0295] In an embodiment of the present invention, the information about the spatial filter and / or reference signal includes at least one of a spatial filter index and / or a beam index, a reference signal index, the number of antenna ports of the reference signal, antenna polarization information, beam width information, and beam direction information.

[0296] In an embodiment of the present invention, the number of antenna ports of the reference signal is one or two.

[0297] In an embodiment of the present invention, the antenna polarization information includes single polarization or multiple polarizations.

[0298] In an embodiment of the present invention, the beamwidth information includes the number of antenna ports in a first dimension and the number of antenna ports in a second dimension.

[0299] In an embodiment of the present invention, the beam direction information includes a codebook index.

[0300] In an embodiment of the present invention, the codebook index corresponds to an emission angle or an antenna transmission phase.

[0301] In an embodiment of the present invention, as shown in FIG. 26, the wireless communication device 2600 further includes the following modules:

[0302] A tenth module 2602 receives report information from the repeater, the report information including information regarding the capabilities of the repeater.

[0303] In an embodiment of the present invention, as shown in FIG. 26, the wireless communication device 2600 further includes the following modules:

[0304] An eleventh module 2603 determines a scheduling and / or indication scheme corresponding to the capabilities of the repeater based on the reporting information.

[0305] In an embodiment of the present invention, the report information includes at least one of the maximum number of beams supported by the repeater and antenna information of the repeater.

[0306] In an embodiment of the present invention, the maximum number of beams supported by the repeater includes at least one of a maximum number of candidate spatial filters or candidate beams, and a maximum number of candidate spatial filter reference signals or candidate beam reference signals.

[0307] In an embodiment of the present invention, the maximum number of candidate spatial filter reference signals or candidate beam reference signals includes the maximum number of antenna ports for the candidate spatial filter reference signals or candidate beam reference signals.

[0308] In an embodiment of the present invention, the repeater antenna information includes at least one of antenna panel information, antenna polarization information, and antenna dimension information.

[0309] In an embodiment of the present invention, as shown in FIG. 26, the wireless communication device 2600 further includes the following modules:

[0310] A twelfth module 2604 establishes a connection with the repeater.

[0311] For example, the repeater is a relay device.

[0312] For example, the repeater is a repeater node.

[0313] According to this embodiment, the network device transmits instruction information to the repeater, the instruction information including information about the spatial filter and / or the reference signal. Therefore, the repeater can receive and / or transmit signals to the network device and / or the terminal device using beamforming technology based on the instruction information, and / or can receive and / or transmit reference signals to the network device and / or the terminal device, and can use the beamforming information of the reference signal when transmitting and / or receiving signals. Therefore, the gain of the transmitted and received signals of the repeater can be improved, and interference to adjacent cells can be avoided, thereby improving system performance.

[0314] <Example 5> An embodiment of the present invention provides a repeater, which includes the wireless communication device according to the third embodiment.

[0315] 27 is a schematic block diagram showing an example of a system configuration of a repeater according to a fifth embodiment of the present invention. As shown in FIG. 27, a repeater 2700 may include a processor 2710 and a memory 2720, and the memory 2720 is connected to the processor 2710. Note that this diagram is merely an example, and other types of structures may be used to supplement or replace this structure to realize communication functions or other functions.

[0316] In one aspect, the functionality of the wireless communication device may be integrated into the processor 2710, where the processor 2710 may be configured to perform the steps of receiving instructional information from a network device, the instructional information including information regarding a spatial filter and / or a reference signal.

[0317] In another aspect, the wireless communication device may be configured separately from the processor 2710, for example, configured as a chip connected to the processor 2710, and the functions of the wireless communication device may be realized under the control of the processor 2710.

[0318] As shown in Fig. 27, the repeater 2700 may further include a network-side transceiver 2740-1 and a network-side antenna 2750-1, a terminal-side transceiver 2740-2 and a terminal-side antenna 2750-2, and a signal amplifier circuit 2760. Here, the functions of the above units are similar to those of the prior art, and therefore a description thereof will be omitted here. Note that the repeater 2700 does not need to include all of the units shown in Fig. 27. Furthermore, the repeater 2700 may further include units not shown in Fig. 27, and prior art may be referred to.

[0319] 27, processor 2710, which may also be referred to as a controller or operation control device, may include a microprocessor or other processor and / or logic device. Processor 2710 accepts inputs and controls the operation of each part of repeater 2700.

[0320] Here, the memory 2720 may be, for example, one or more of a buffer, flash memory, hard drive, removable media, volatile memory, non-volatile memory, or other suitable device, and may store various data and programs that execute related information. The processor 2710 may also execute programs stored in the memory 2720 to store or process information. The functions of the other components are similar to those of the conventional components, and therefore, a description thereof will be omitted here. Each part of the repeater 2700 may be realized by dedicated hardware, firmware, software, or a combination thereof without departing from the scope of the present invention.

[0321] According to this embodiment, the repeater receives instruction information from the network device, including information about the spatial filter and / or the reference signal. Therefore, the repeater can receive and / or transmit signals to the network device and / or the terminal device using beamforming technology based on the instruction information, and / or can receive and / or transmit reference signals to the network device and / or the terminal device, and can use the beamforming information of the reference signal when transmitting and / or receiving signals. Therefore, the gain of the transmission and reception signals of the repeater can be improved, and interference with neighboring cells can be avoided, thereby improving system performance.

[0322] Example 6 An embodiment of the present invention provides a network device, which includes the wireless communication device described in the fourth embodiment.

[0323] 28 is a schematic block diagram showing an example of a system configuration of a network device according to a sixth embodiment of the present invention. As shown in FIG. 28, the network device 2800 may include a processor 2810 (e.g., a central processing unit (CPU)) and a memory 2820, and the memory 2820 is connected to the processor 2810. The memory 2820 may store various data, and may further store an information processing program 2830, and executes the program 2830 under the control of the processor 2810 to receive various information transmitted by a repeater and transmit various information to the repeater.

[0324] In one aspect, the functionality of the wireless communication device may be integrated into the processor 2810. Here, the processor 2810 may be configured to perform the step of sending instructional information to the repeater, the instructional information including information regarding the spatial filter and / or the reference signal.

[0325] 28, the network device 2800 may further include a transceiver 2840 and an antenna 2850. The functions of the above components are similar to those of the prior art, and the description thereof will be omitted here. The network device 2800 does not need to include all the units shown in FIG. 28. The network device 2800 may further include units not shown in FIG. 28, and prior art may be referred to.

[0326] According to this embodiment, the network device transmits instruction information to the repeater, the instruction information including information about the spatial filter and / or the reference signal. Therefore, the repeater can receive and / or transmit signals to the network device and / or the terminal device using beamforming technology based on the instruction information, and / or can receive and / or transmit reference signals to the network device and / or the terminal device, and can use the beamforming information of the reference signal when transmitting and / or receiving signals. Therefore, the gain of the transmitted and received signals of the repeater can be improved, and interference to adjacent cells can be avoided, thereby improving system performance.

[0327] Example 7 An embodiment of the present invention provides a communication system, and the communication system includes the repeater according to the fifth embodiment and / or the network device according to the sixth embodiment.

[0328] For example, the configuration of the communication system may refer to Fig. 1. As shown in Fig. 1, the communication system 100 includes a network device 101, a terminal device 102, and a repeater 103. The repeater 103 may be the same as the repeater described in the fifth embodiment, and the network device 101 may be the same as the network device described in the sixth embodiment, and the overlapping contents will not be described again.

[0329] According to this embodiment, the network device transmits instruction information to the repeater, the instruction information including information about the spatial filter and / or the reference signal. Therefore, the repeater can receive and / or transmit signals to the network device and / or the terminal device using beamforming technology based on the instruction information, and / or can receive and / or transmit reference signals to the network device and / or the terminal device, and can use the beamforming information of the reference signal when transmitting and / or receiving signals. Therefore, the gain of the transmitted and received signals of the repeater can be improved, and interference to adjacent cells can be avoided, thereby improving system performance.

[0330] The above-described apparatus and method of the present invention may be realized by hardware or a combination of hardware and software. The present invention relates to a computer-readable program that, when executed by a logic unit, causes the logic unit to implement the above-described apparatus or components, or to implement the above-described various methods or steps. The present invention also relates to a storage medium for storing the above-described program, such as a hard disk, magnetic disk, optical disk, DVD, flash memory, etc.

[0331] Each processing method in each device described with reference to the embodiments of the present invention may be implemented by hardware, a software module executed by a processor, or a combination of both. For example, one or more of the functional block diagrams shown in FIG. 25, or one or more combinations of functional block diagrams, may correspond to each software module in the flow of a computer program or each hardware module. These software modules may correspond to each step shown in FIGS. 2 and 3, respectively. These hardware modules may be implemented by implementing these software modules in hardware using, for example, a field programmable gate array (FPGA).

[0332] The software module may be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, mobile hard disk, CD-ROM, or any other form of storage medium known to those skilled in the art. The storage medium may be connected to the processor so that the processor reads information from or writes information to the storage medium, or the storage medium may be a component of the processor. The processor and the storage medium may be located in an ASIC. The software module may be stored in the memory of the mobile terminal or in a memory card inserted into the mobile terminal. For example, if a device (e.g., a mobile terminal) uses a relatively large-capacity MEGA-SIM card or a large-capacity flash memory device, the software module may be stored in the MEGA-SIM card or the large-capacity flash memory device.

[0333] One or more of the functional blocks and / or one or more combinations of functional blocks in the functional block diagram set forth in Figure 25 may be implemented with a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any suitable combination thereof to perform the functions described herein. One or more of the functional blocks and / or one or more combinations of functional blocks in the functional block diagram set forth in Figure 25 may be implemented with, for example, a combination of computing devices, such as a combination of a DSP and a microprocessor, a combination of multiple microprocessors, one or more microprocessors in combination with a DSP communication, or any other configuration.

[0334] Although the present invention has been described above with reference to specific embodiments, the above description is merely illustrative and does not limit the scope of protection of the present invention. Various modifications and changes may be made to the present invention without departing from the spirit and principles of the present invention, and these modifications and changes are also within the scope of the present invention.

[0335] Furthermore, the following supplementary notes are disclosed regarding the embodiments including the above-mentioned examples. [Appendix 1] (Appendix 1) A wireless communication device applied to a repeater, An apparatus comprising: a first module for receiving indication information from a network device, the indication information including information regarding a spatial filter and / or a reference signal. (Appendix 2) 2. The apparatus of claim 1, wherein the repeater belongs to a serving cell corresponding to the network device. (Appendix 3) The instruction information is Indication information regarding a spatial filter and / or a reference signal used to instruct the repeater to transmit a first signal; Indication information regarding a spatial filter and / or a reference signal used to instruct the repeater to receive the second signal; Instruction information for instructing the repeater to transmit a reference signal; and The apparatus of claim 1, wherein the repeater is configured to receive a reference signal, and the repeater is configured to receive a reference signal. (Appendix 4) the first signal is a first forwarding signal for forwarding a signal received from a network device to a terminal device; The apparatus of claim 3, wherein the second signal is a signal to be forwarded received from a terminal device. (Appendix 5) The instruction information for instructing the repeater to transmit a reference signal includes: 4. The apparatus of claim 3, further comprising instruction information regarding a spatial filter and / or a reference signal used to instruct the repeater to transmit a reference signal. (Appendix 6) The instruction information for instructing the repeater to receive a reference signal includes: 4. The apparatus of claim 3, further comprising instruction information regarding a spatial filter and / or reference signal used to instruct the repeater to receive the reference signal. (Appendix 7) The information about the spatial filter and / or the reference signal may include: spatial filter index and / or beam index, Reference signal index, the number of antenna ports for the reference signal; Antenna polarization information, beamwidth information, and 7. The apparatus of any one of claims 1 to 6, further comprising at least one of beam direction information. (Appendix 8) The apparatus of claim 7, wherein the number of antenna ports for the reference signal is one or two. (Appendix 9) 8. The apparatus of claim 7, wherein the antenna polarization information includes single polarization or multiple polarizations. (Appendix 10) 8. The apparatus of claim 7, wherein the beamwidth information includes a number of antenna ports in a first dimension and a number of antenna ports in a second dimension. (Appendix 11) 8. The apparatus of claim 7, wherein the beam direction information includes a codebook index. (Appendix 12) 12. The apparatus of claim 11, wherein the codebook index corresponds to an emission angle or an antenna transmission phase. (Appendix 13) 13. The apparatus of any of claims 1 to 12, further comprising: a second module for transmitting a first signal and / or receiving a second signal using a spatial filter corresponding to the instruction information. (Appendix 14) The apparatus of claim 1, wherein the information about the reference signal includes configuration information of the reference signal. (Appendix 15) 15. The apparatus of any one of Supplementary Notes 1 to 12 and 14, further comprising: a third module for transmitting and / or receiving a reference signal based on the instruction information. (Appendix 16) 16. The apparatus of claim 15, wherein the third module transmits and / or receives a reference signal based on a spatial filter corresponding to the instruction information. (Appendix 17) 17. The device described in Supplementary Note 15 or 16, wherein the third module transmits a first reference signal to a terminal device based on the instruction information. (Appendix 18) 18. The apparatus of claim 17, further comprising: a fourth module for transmitting a first signal to a terminal device and / or receiving a second signal from the terminal device using a spatial filter determined based on the first reference signal. (Appendix 19) 19. The apparatus of claim 18, further comprising: a fourth module for transmitting a first signal to a terminal device and / or receiving a second signal from the terminal device using the same spatial filter as that used to transmit the first reference signal. (Appendix 20) 17. The apparatus of claim 15, wherein the third module receives a second reference signal from the terminal device based on the indication information. (Appendix 21) 21. The apparatus of claim 20, further comprising: a fifth module for transmitting a first signal to a terminal device and / or receiving a second signal from the terminal device using a spatial filter determined based on the second reference signal. (Appendix 22) 22. The apparatus of claim 21, wherein the fifth module transmits a first signal to a terminal device and / or receives a second signal from the terminal device using a spatial filter identical to a spatial filter used to receive the second reference signal. (Appendix 23) 17. The apparatus of claim 15 or 16, wherein the third module receives at least two third reference signals based on the indication information. (Appendix 24) 24. The apparatus of claim 23, wherein the at least two third reference signals are from different terminal devices. (Appendix 25) 25. The apparatus of claim 23 or 24, further comprising: a sixth module for transmitting a first signal to a terminal device and / or receiving a second signal from the terminal device using a spatial filter determined based on the at least two third reference signals. (Appendix 26) 17. The apparatus of claim 15 or 16, wherein the reference signal corresponds to a downlink transmission from the repeater to a terminal device. (Appendix 27) 17. The apparatus of claim 15 or 16, wherein the reference signal is used for communication with a terminal device. (Appendix 28) 17. The apparatus of claim 15 or 16, wherein the reference signal includes at least one of an SSB, an SRS, a CSI-RS, or a repeater-specific reference signal. (Appendix 29) 29. The apparatus of any of Supplementary notes 1 to 28, further comprising: a seventh module for sending reporting information to the network device, the reporting information including information regarding the capabilities of the repeater. (Appendix 30) 30. The apparatus of claim 29, wherein the reporting information is used by the network device to determine a scheduling and / or indication scheme that corresponds to the capabilities of the repeater. (Appendix 31) The reporting information is the maximum number of beams supported by the repeater; and 31. The apparatus of claim 29 or 30, comprising at least one of the repeater's antenna information. (Appendix 32) The maximum number of beams supported by the repeater is: the maximum number of candidate spatial filters or candidate beams, and 32. The apparatus of claim 31, comprising at least one of a maximum number of candidate spatial filter reference signals or candidate beam reference signals. (Appendix 33) 33. The apparatus of claim 32, wherein the maximum number of candidate spatial filter reference signals or candidate beam reference signals comprises a maximum number of antenna ports for the candidate spatial filter reference signals or candidate beam reference signals. (Appendix 34) The repeater antenna information Antenna panel information, Antenna polarization information, and 32. The apparatus of claim 31, further comprising at least one of antenna dimension information. (Appendix 35) 35. The apparatus of any of claims 1 to 34, further comprising: an eighth module for establishing a connection with the network device. (Appendix 36) 36. The device of any one of claims 1 to 35, wherein the repeater is a relay device. (Appendix 37) 37. The apparatus of any preceding claim, wherein the repeater is a repeater node. (Appendix 38) A wireless communication device applied to a network device, an apparatus comprising: a ninth module for transmitting instruction information to a repeater, the instruction information including information regarding a spatial filter and / or a reference signal; (Appendix 39) 39. The apparatus of claim 38, wherein the repeater belongs to a serving cell corresponding to the network device. (Appendix 40) The instruction information is Indication information regarding a spatial filter and / or a reference signal used to instruct the repeater to transmit a first signal; Indication information regarding a spatial filter and / or a reference signal used to instruct the repeater to receive the second signal; Instruction information for instructing the repeater to transmit a reference signal; and 39. The apparatus of claim 38, wherein at least one of instruction information for instructing the repeater to receive a reference signal. (Appendix 41) the first signal is a first forwarding signal for forwarding a signal received from a network device to a terminal device; The apparatus of claim 40, wherein the second signal is a signal to be forwarded received from a terminal device. (Appendix 42) The instruction information for instructing the repeater to transmit a reference signal includes: 41. The apparatus of claim 40, including instructional information regarding a spatial filter and / or reference signal used to instruct the repeater to transmit a reference signal. (Appendix 43) The instruction information for instructing the repeater to receive a reference signal includes: 41. The apparatus of claim 40, including instruction information regarding a reference signal and / or a spatial filter used to instruct the repeater to receive a reference signal. (Appendix 44) The information about the spatial filter and / or the reference signal may include: spatial filter index and / or beam index, Reference signal index, the number of antenna ports for the reference signal; Antenna polarization information, beamwidth information, and 44. The apparatus of any of claims 38 to 43, further comprising at least one of: beam direction information. (Appendix 45) 45. The apparatus of claim 44, wherein the number of antenna ports for the reference signal is one or two. (Appendix 46) 45. The apparatus of claim 44, wherein the antenna polarization information includes single polarization or multiple polarizations. (Appendix 47) 45. The apparatus of claim 44, wherein the beamwidth information includes a number of antenna ports in a first dimension and a number of antenna ports in a second dimension. (Appendix 48) 45. The apparatus of claim 44, wherein the beam direction information includes a codebook index. (Appendix 49) 49. The apparatus of claim 48, wherein the codebook index corresponds to an emission angle or an antenna transmit phase. (Appendix 50) 50. The apparatus of any of claims 38 to 49, further comprising: a tenth module for receiving report information from the repeater, the report information including information regarding the capabilities of the repeater. (Appendix 51) 51. The apparatus of claim 50, further comprising: an eleventh module that determines a scheduling and / or indication scheme corresponding to the capabilities of the repeater based on the reporting information. (Appendix 52) The reporting information is the maximum number of beams supported by the repeater; and 52. The apparatus of claim 50 or 51, including at least one of the repeater's antenna information. (Appendix 53) The maximum number of beams supported by the repeater is: the maximum number of candidate spatial filters or candidate beams, and 53. The apparatus of claim 52, including at least one of a maximum number of candidate spatial filter reference signals or candidate beam reference signals. (Appendix 54) 54. The apparatus of claim 53, wherein the maximum number of candidate spatial filter reference signals or candidate beam reference signals includes a maximum number of antenna ports for the candidate spatial filter reference signals or candidate beam reference signals. (Appendix 55) The repeater antenna information Antenna panel information, Antenna polarization information, and 53. The apparatus of claim 52, further comprising at least one of antenna dimension information. (Appendix 56) 56. The apparatus of any of claims 38 to 55, further comprising: a twelfth module that establishes a connection with the repeater. (Appendix 57) 57. The device of any one of claims 38 to 56, wherein the repeater is a relay device. (Appendix 58) 58. The apparatus of any one of claims 38 to 57, wherein the repeater is a repeater node. (Appendix 59) 38. A repeater comprising the apparatus of any one of claims 1 to 37. (Appendix 60) 59. A network device comprising the device of any one of appendices 38 to 58. (Appendix 61) A communication system comprising a repeater according to claim 59 and / or a network device according to claim 60, and a terminal device. [Appendix 2] (Appendix 1) A wireless communication method applied to a repeater, comprising: 10. A method comprising: receiving indication information from a network device, the indication information including information regarding a spatial filter and / or a reference signal. (Appendix 2) 2. The method of claim 1, wherein the repeater belongs to a serving cell corresponding to the network device. (Appendix 3) The instruction information is Indication information regarding a spatial filter and / or a reference signal used to instruct the repeater to transmit a first signal; Indication information regarding a spatial filter and / or a reference signal used to instruct the repeater to receive the second signal; Instruction information for instructing the repeater to transmit a reference signal; and The method of claim 1, wherein the repeater is configured to receive at least one of the reference signals. (Appendix 4) the first signal is a first forwarding signal for forwarding a signal received from a network device to a terminal device; The method described in Supplementary Note 3, wherein the second signal is a signal to be forwarded received from a terminal device. (Appendix 5) The instruction information for instructing the repeater to transmit a reference signal includes: 4. The method of claim 3, including instruction information regarding a spatial filter and / or reference signal used to instruct the repeater to transmit a reference signal. (Appendix 6) The instruction information for instructing the repeater to receive a reference signal includes: 4. The method of claim 3, including instruction information regarding a spatial filter and / or reference signal used to instruct the repeater to receive a reference signal. (Appendix 7) The information about the spatial filter and / or the reference signal may include: spatial filter index and / or beam index, Reference signal index, the number of antenna ports for the reference signal; Antenna polarization information, beamwidth information, and 7. The method of any one of claims 1 to 6, including at least one of beam direction information. (Appendix 8) The method described in Supplementary Note 7, wherein the number of antenna ports for the reference signal is 1 or 2. (Appendix 9) 8. The method of claim 7, wherein the antenna polarization information includes single polarization or multiple polarizations. (Appendix 10) 8. The method of claim 7, wherein the beamwidth information includes a number of antenna ports in a first dimension and a number of antenna ports in a second dimension. (Appendix 11) 8. The method of claim 7, wherein the beam direction information includes a codebook index. (Appendix 12) 12. The method of claim 11, wherein the codebook index corresponds to an emission angle or an antenna transmission phase. (Appendix 13) 13. The method of any of claims 1 to 12, further comprising transmitting a first signal and / or receiving a second signal using a spatial filter corresponding to the indication information. (Appendix 14) 2. The method of claim 1, wherein the information about the reference signal includes configuration information of the reference signal. (Appendix 15) 15. The method of any one of appendices 1 to 12 and 14, further comprising transmitting and / or receiving a reference signal based on the indication information. (Appendix 16) The step of transmitting and / or receiving a reference signal based on the instruction information includes: 16. The method of claim 15, comprising transmitting and / or receiving a reference signal based on a spatial filter corresponding to the indication information. (Appendix 17) The step of transmitting and / or receiving a reference signal based on the instruction information includes: 17. The method of claim 15 or 16, further comprising: transmitting a first reference signal to a terminal device based on the indication information. (Appendix 18) 18. The method of claim 17, further comprising: transmitting a first signal to a terminal device and / or receiving a second signal from the terminal device using a spatial filter determined based on the first reference signal. (Appendix 19) 19. The method of claim 17 or 18, further comprising transmitting a first signal to a terminal device and / or receiving a second signal from the terminal device using the same spatial filter as that used to transmit the first reference signal. (Appendix 20) The step of transmitting and / or receiving a reference signal based on the instruction information includes: 17. The method of claim 15 or 16, further comprising receiving a second reference signal from the terminal device based on the indication information. (Appendix 21) 21. The method of claim 20, further comprising transmitting a first signal to a terminal device and / or receiving a second signal from the terminal device using a spatial filter determined based on the second reference signal. (Appendix 22) 22. The method of claim 20 or 21, further comprising transmitting a first signal to a terminal device and / or receiving a second signal from the terminal device using the same spatial filter as that used to receive the second reference signal. (Appendix 23) The step of transmitting and / or receiving a reference signal based on the instruction information includes: 17. The method of claim 15 or 16, further comprising receiving at least two third reference signals based on the indication information. (Appendix 24) 24. The method of claim 23, wherein the at least two third reference signals are from different terminal devices. (Appendix 25) 25. The method of claim 23 or 24, further comprising transmitting a first signal to a terminal device and / or receiving a second signal from the terminal device using a spatial filter determined based on the at least two third reference signals. (Appendix 26) 17. The method of claim 15 or 16, wherein the reference signal corresponds to a downlink transmission from the repeater to a terminal device. (Appendix 27) 17. The method of claim 15 or 16, wherein the reference signal is used for communication with a terminal device. (Appendix 28) 17. The method of claim 15 or 16, wherein the reference signal comprises at least one of an SSB, an SRS, a CSI-RS, or a repeater-specific reference signal. (Appendix 29) 29. The method of any of claims 1 to 28, further comprising the step of: sending reporting information to the network device, the reporting information including information regarding the capabilities of the repeater. (Appendix 30) 30. The method of claim 29, wherein the reporting information is used by the network device to determine a scheduling and / or indication scheme that corresponds to the capabilities of the repeater. (Appendix 31) The reporting information is the maximum number of beams supported by the repeater; and 31. The method of claim 29 or 30, including at least one of the repeater's antenna information. (Appendix 32) The maximum number of beams supported by the repeater is: the maximum number of candidate spatial filters or candidate beams, and 32. The method of claim 31, including at least one of a maximum number of candidate spatial filter reference signals or candidate beam reference signals. (Appendix 33) 33. The method of claim 32, wherein the maximum number of candidate spatial filter reference signals or candidate beam reference signals comprises a maximum number of antenna ports for the candidate spatial filter reference signals or candidate beam reference signals. (Appendix 34) The repeater antenna information Antenna panel information, Antenna polarization information, and 32. The method of claim 31, including at least one of antenna dimension information. (Appendix 35) 35. The method of any of claims 1 to 34, further comprising establishing a connection with the network device. (Appendix 36) 36. The method of any one of claims 1 to 35, wherein the repeater is a relay device. (Appendix 37) 37. The method of any one of claims 1 to 36, wherein the repeater is a repeater node. (Appendix 38) A wireless communication method applied to a network device, comprising: A method comprising: transmitting instruction information to a repeater, the instruction information including information regarding a spatial filter and / or a reference signal. (Appendix 39) 39. The method of claim 38, wherein the repeater belongs to a serving cell corresponding to the network device. (Appendix 40) The instruction information is Indication information regarding a spatial filter and / or a reference signal used to instruct the repeater to transmit a first signal; Indication information regarding a spatial filter and / or a reference signal used to instruct the repeater to receive the second signal; Instruction information for instructing the repeater to transmit a reference signal; and 39. The method of claim 38, wherein at least one of the instruction information is for instructing the repeater to receive a reference signal. (Appendix 41) the first signal is a first forwarding signal for forwarding a signal received from a network device to a terminal device; 41. The method of claim 40, wherein the second signal is a signal to be forwarded received from a terminal device. (Appendix 42) The instruction information for instructing the repeater to transmit a reference signal includes: 41. The method of claim 40, including instruction information regarding a spatial filter and / or reference signal used to instruct the repeater to transmit a reference signal. (Appendix 43) The instruction information for instructing the repeater to receive a reference signal includes: 41. The method of claim 40, including instruction information regarding a reference signal and / or a spatial filter used to instruct the repeater to receive a reference signal. (Appendix 44) The information about the spatial filter and / or the reference signal may include: spatial filter index and / or beam index, Reference signal index, the number of antenna ports for the reference signal; Antenna polarization information, beamwidth information, and 44. The method of any of claims 38 to 43, including at least one of beam direction information. (Appendix 45) 45. The method of claim 44, wherein the number of antenna ports for the reference signal is 1 or 2. (Appendix 46) 45. The method of claim 44, wherein the antenna polarization information includes single polarization or multiple polarizations. (Appendix 47) 45. The method of claim 44, wherein the beamwidth information includes a number of antenna ports in a first dimension and a number of antenna ports in a second dimension. (Appendix 48) 45. The method of claim 44, wherein the beam direction information includes a codebook index. (Appendix 49) 49. The method of claim 48, wherein the codebook index corresponds to an emission angle or an antenna transmission phase. (Appendix 50) 50. The method of any of claims 38 to 49, further comprising receiving reporting information from the repeater, the reporting information including information regarding the capabilities of the repeater. (Appendix 51) 51. The method of claim 50, further comprising determining a scheduling and / or indication scheme corresponding to the capabilities of the repeater based on the reporting information. (Appendix 52) The reporting information is the maximum number of beams supported by the repeater; and 52. The method of claim 50 or 51, including at least one of the repeater's antenna information. (Appendix 53) The maximum number of beams supported by the repeater is: the maximum number of candidate spatial filters or candidate beams, and 53. The method of claim 52, including at least one of a maximum number of candidate spatial filter reference signals or candidate beam reference signals. (Appendix 54) 54. The method of claim 53, wherein the maximum number of candidate spatial filter reference signals or candidate beam reference signals comprises a maximum number of antenna ports for the candidate spatial filter reference signals or candidate beam reference signals. (Appendix 55) The repeater antenna information Antenna panel information, Antenna polarization information, and 53. The method of claim 52, including at least one of antenna dimension information. (Appendix 56) 56. The method of any of claims 38 to 55, further comprising establishing a connection with the repeater. (Appendix 57) 57. The method of any one of claims 38 to 56, wherein the repeater is a relay device. (Appendix 58) 58. The method of any one of claims 38 to 57, wherein the repeater is a repeater node.

Claims

1. a repeater node, a first module for establishing a connection with at least a network device, the first module being a repeater mobile terminal (Repeater-MT); a second module for amplifying and forwarding signals between a terminal device and the network device; The repeater node receives instruction information from the network device via the first module, and the instruction information is used to instruct the second module to select a beam for transmitting a first signal at the terminal side and / or a beam for receiving a second signal at the terminal side; the first signal is a first transfer signal for transferring a signal received from the network device to the terminal device, and the second signal is a signal to be transferred received from the terminal device; A repeater node, wherein the beam for the second module to transmit the first signal at the terminal side, as instructed by the instruction information, and the beam for the second module to receive the second signal at the terminal side, as instructed by the instruction information, have reciprocity between uplink and downlink.

2. 2. The repeater node of claim 1, wherein the signal between the terminal device and the network device is an RF signal.

3. The repeater node of claim 1, wherein the instruction information indicates, via a beam index, a beam for the second module to transmit the first signal at the terminal side and / or a beam for the second module to receive the second signal at the terminal side.

4. The repeater node of claim 1, wherein the repeater node transmits the first signal using a beam indicated by the instruction information via a second module, and / or receives the second signal using a beam indicated by the instruction information.

5. the repeater node amplifies a signal received from the network device via the second module to obtain the first signal; 2. The repeater node according to claim 1, wherein the repeater node amplifies the second signal, which is a signal to be forwarded, via the second module to obtain a second forwarded signal for the repeater node to transmit on the network side.

6. the repeater node establishes a connection with a network device via the first module; The repeater node of claim 1 , wherein the repeater node transmits reporting information to the network device via the first module, the reporting information including information regarding capabilities of the repeater node.

7. The repeater node of claim 6 , wherein the reporting information includes parameters for repeater capability.

8. The reporting information is the maximum number of beams supported by the repeater node; and The repeater node of claim 6 , including at least one of the repeater node's antenna information.

9. The maximum number of beams supported by the repeater node is: the maximum number of candidate spatial filters or candidate beams, and The repeater node of claim 1 , comprising at least one of a maximum number of candidate spatial filter reference signals or candidate beam reference signals.

10. The repeater node of claim 9 , wherein the maximum number of candidate spatial filter reference signals or candidate beam reference signals comprises a maximum number of antenna ports for the candidate spatial filter reference signals or candidate beam reference signals.

11. The antenna information of the repeater node is Antenna panel information, Antenna polarization information, and 9. The repeater node of claim 8, including at least one of antenna dimension information.

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