Beam determination method and device, equipment and storage medium

Abstract

The present disclosure proposes a beam determination method, apparatus and device, and a storage medium, the method comprising: receiving first beam-related information reported by at least one terminal device, the first beam-related information being related information corresponding to a beam between the terminal device and a relay device; and beam determination information is acquired based on the first beam related information, the beam determination information is used for determining a target beam, and the target beam is a beam used when the relay device performs relay forwarding to the at least one terminal device. The invention provides a simple beam determination method, which can quickly and effectively determine the relay forwarding direction in a multi-user scene. Moreover, the beam quality of the determined target beam can be ensured, and the signal transmission precision is improved.

Description

A beam determination method, device, equipment and storage medium Technical Field

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

[0002] In the communication system, by introducing relay equipment, the signal transmitted by the base station is reflected or transmitted to the terminal device in a specific direction, so as to improve the network coverage, enhance the signal strength of the signal received by the terminal device, and realize the control of the channel.

[0003] In related technologies, when relay devices forward signals from base stations to terminal devices, they typically need to determine a specific forwarding direction to ensure accurate signal transmission to the terminal device. However, in current multi-user scenarios, the methods used by relay devices to determine forwarding directions are complex and inefficient.

[0004] Summary of the Invention

[0005] The beam determination method, apparatus, device, and storage medium proposed in the present disclosure are relatively concise and can quickly and effectively determine the relay forwarding direction in a multi-user scenario.

[0006] In a first aspect, an embodiment of the present disclosure provides a beam determination method, which is executed by a base station and includes:

[0007] Receive first beam-related information reported by at least one terminal device, where the first beam-related information includes relevant information corresponding to a beam between the terminal device and a relay device;

[0008] Beam determination information is acquired based on the first beam-related information, where the beam determination information is used to determine a target beam, wherein the target beam includes a beam used by a relay device to relay and forward to at least one terminal device.

[0009] In the present disclosure, a base station receives first beam-related information reported by at least one terminal device. The first beam-related information is related information corresponding to the beam between the terminal device and the relay device. Subsequently, the base station obtains beam determination information based on the first beam-related information. The beam determination information is used to determine a target beam, which is the beam used by the relay device when relaying to at least one terminal device. Thus, the present disclosure provides a beam determination method for determining a target beam used by a relay device when forwarding a signal sent by the base station to at least one terminal device. The method of the present disclosure is relatively concise and can quickly and efficiently determine the relay forwarding direction in a multi-user scenario. Furthermore, when determining the target beam, the present disclosure also takes into account the beam quality of the beam between the terminal device and the relay device, so that the beam direction of the determined target beam is infinitely close to the direction of a beam with high beam quality, thereby ensuring the beam quality of the determined target beam. Consequently, when the relay device forwards a signal sent by the base station to at least one terminal device based on the target beam, forwarding accuracy can be ensured, so that at least one terminal device can accurately receive the signal forwarded by the relay device, thereby improving signal transmission accuracy.

[0010] In a second aspect, an embodiment of the present disclosure provides a beam determination method, which is performed by a relay device and includes:

[0011] Determining a target beam, wherein determining the target beam includes at least one of the following:

[0012] receiving beam determination information sent by a base station, and determining a target beam based on the beam determination information;

[0013] Second beam related information sent by a base station is received, where the second beam related information includes related information of the target beam.

[0014] In a third aspect, an embodiment of the present disclosure provides a beam determination method, which is executed by a terminal device and includes:

[0015] Report first beam-related information to the base station, where the first beam-related information is the related information corresponding to the beam between the terminal device and the relay device.

[0016] In a fourth aspect, an embodiment of the present disclosure provides a communication device, which is configured in a base station and includes:

[0017] a transceiver module, configured to receive first beam-related information reported by at least one terminal device, where the first beam-related information includes relevant information corresponding to the beam between the terminal device and the relay device;

[0018] A processing module is used to obtain beam determination information based on the first beam-related information, and the beam determination information is used to determine a target beam, wherein the target beam includes the beam used by the relay device when relaying to at least one terminal device.

[0019] In a fifth aspect, an embodiment of the present disclosure provides a communication device, which is configured in a relay device and includes:

[0020] A processing module is configured to determine a target beam, wherein the processing module is configured to perform at least one of the following:

[0021] receiving beam determination information sent by a base station, and determining a target beam based on the beam determination information;

[0022] Second beam related information sent by a base station is received, where the second beam related information includes related information of the target beam.

[0023] In a sixth aspect, an embodiment of the present disclosure provides a communication device, which is configured in a terminal device and includes:

[0024] The transceiver module is used to report the first beam related information to the base station, where the first beam related information is the related information corresponding to the beam between the terminal device and the relay device.

[0025] In a seventh aspect, an embodiment of the present disclosure provides a communication device, which includes a processor. When the processor calls a computer program in a memory, the method described in any one of the first to third aspects above is executed.

[0026] In an eighth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the method described in any one of the first to third aspects above.

[0027] In the ninth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the method described in any one of the first to third aspects above.

[0028] In the tenth aspect, an embodiment of the present disclosure provides a communication system, which includes the communication device described in any one of aspects from the fourth to the sixth aspect, or the system includes the communication device described in the seventh aspect, or the system includes the communication device described in the eighth aspect, or the system includes the communication device described in the ninth aspect.

[0029] In the eleventh aspect, an embodiment of the present disclosure provides a computer-readable storage medium for storing instructions used by the above-mentioned network device, and when the instructions are executed, the terminal device executes the method described in the first aspect.

[0030] In a twelfth aspect, the present disclosure further provides a computer program product comprising a computer program, which, when executed on a computer, enables the computer to execute the method described in the first aspect above.

[0031] In a thirteenth aspect, the present disclosure provides a chip system comprising at least one processor and an interface for supporting a network device in implementing the functions described in any one of aspects one to three, such as determining or processing at least one of the data and information involved in the method. In one possible design, the chip system further comprises a memory for storing computer programs and data necessary for the source slave node. The chip system may be composed of a chip or may include a chip and other discrete components.

[0032] In a fifteenth aspect, the present disclosure provides a computer program, which, when executed on a computer, enables the computer to execute the method described in any one of the first to third aspects above. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0034] FIG1 is a schematic diagram of the architecture of some communication systems provided by embodiments of the present disclosure;

[0035] FIG2 is a schematic flow chart of a beam determination method provided by another embodiment of the present disclosure;

[0036] FIG3 is a schematic flow chart of a beam determination method provided in yet another embodiment of the present disclosure;

[0037] FIG4 is a schematic flow chart of a beam determination method provided in yet another embodiment of the present disclosure;

[0038] FIG5 is a schematic flow chart of a beam determination method provided in yet another embodiment of the present disclosure;

[0039] FIG6 is a schematic flow chart of a beam determination method provided in yet another embodiment of the present disclosure;

[0040] FIG7 a is a schematic flow chart of a beam determination method provided in yet another embodiment of the present disclosure;

[0041] FIG7 b is a schematic flow chart of a beam determination method provided in yet another embodiment of the present disclosure;

[0042] FIG8 is a schematic flow chart of a beam determination method provided in yet another embodiment of the present disclosure;

[0043] FIG9 is a schematic structural diagram of a communication device provided by another embodiment of the present disclosure;

[0044] FIG10 is a schematic structural diagram of a communication device provided by another embodiment of the present disclosure;

[0045] FIG11 is a schematic structural diagram of a communication device provided by another embodiment of the present disclosure;

[0046] FIG12 is a block diagram of a communication device provided by one embodiment of the present disclosure;

[0047] FIG13 is a schematic structural diagram of a chip provided in accordance with an embodiment of the present disclosure. DETAILED DESCRIPTION

[0048] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0049] The terms used in the embodiments of the present disclosure are for the purpose of describing specific embodiments only and are not intended to limit the embodiments of the present disclosure. The singular forms "a," "an," and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0050] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if" and "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0051] The embodiments of the present disclosure are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be understood as limiting the present disclosure.

[0052] To facilitate understanding, the terms involved in this application are first introduced.

[0053] 1. Relay equipment

[0054] Also known as relay communication equipment, a communication term, refers to the communication equipment used to forward information in a relay station.

[0055] In order to better understand the beam determination method disclosed in an embodiment of the present disclosure, the communication system to which the embodiment of the present disclosure is applicable is first described below.

[0056] Please refer to Figure 1, which is a schematic diagram of the architecture of a communication system provided in an embodiment of the present disclosure. The communication system may include, but is not limited to, a base station, a relay device, and a terminal device. The number and form of devices shown in Figure 1 are for example purposes only and do not constitute a limitation on the embodiments of the present disclosure. In actual applications, two or more base stations, two or more relay devices, and two or more terminal devices may be included. The communication system shown in Figure 1 includes, for example, a base station 11, a relay device 12, and a terminal device 13.

[0057] It should be noted that the technical solutions of the embodiments of the present disclosure can be applied to various communication systems, such as long-term evolution (LTE) systems, fifth-generation (5G) mobile communication systems, 5G new radio (NR) systems, or other future new mobile communication systems.

[0058] The base station in the embodiment of the present disclosure is an entity on the network side for transmitting or receiving signals. For example, the base station may be an evolved NodeB (eNB), a transmission reception point (TRP), a radio remote head (RRH), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system. The embodiment of the present disclosure does not limit the specific technology and specific device form adopted by the base station. The base station provided in the embodiment of the present disclosure may be composed of a central unit (CU) and a distributed unit (DU), wherein the CU may also be referred to as a control unit. The CU-DU structure may be used to split the base station, such as the protocol layer of the base station, and the functions of some protocol layers are placed in the CU for centralized control, while the functions of the remaining part or all of the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU.

[0059] The terminal device in the embodiments of the present disclosure can be an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal device can also be referred to as a terminal device (terminal), user equipment (UE), mobile station (MS), mobile terminal device (MT), etc. The terminal device can be a car with communication functions, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self-driving (self-driving), a wireless terminal device in remote medical surgery (remote medical surgery), a wireless terminal device in a smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in a smart city (smart city), a wireless terminal device in a smart home (smart home), etc. The embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal device.

[0060] The relay device in the embodiments of the present disclosure may be a base station or a terminal device.

[0061] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0062] The beam determination method, apparatus, device, and storage medium provided by the embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0063] FIG2 is a flow chart of a beam determination method provided by an embodiment of the present disclosure. The method is executed by a base station. As shown in FIG2 , the beam determination method may include the following steps:

[0064] Step 201: Receive first beam-related information reported by at least one terminal device, where the first beam-related information is related information corresponding to the beam between the terminal device and the relay device.

[0065] The method disclosed herein can be applied to a multi-user scenario (i.e., a multi-terminal device scenario). Assuming that there are three terminal devices in the current communication scenario, namely, terminal device #1, terminal device #2, and terminal device #3, the base station will receive the first beam-related information reported by terminal device #1, the first beam-related information reported by terminal device #2, and the first beam-related information reported by terminal device #3; wherein the first beam-related information reported by terminal device #1 is specifically: the relevant information corresponding to the beam between terminal device #1 and the relay device; the first beam-related information reported by terminal device #2 is specifically: the relevant information corresponding to the beam between terminal device #2 and the relay device; and the first beam-related information reported by terminal device #3 is specifically: the relevant information corresponding to the beam between terminal device #3 and the relay device.

[0066] Furthermore, in one embodiment of the present disclosure, the first beam-related information may indicate at least one of the following:

[0067] The beam direction of the beam between the terminal device and the relay device;

[0068] Beam quality between the terminal device and the relay device.

[0069] The first beam-related information may include at least one of the following:

[0070] A first precoding matrix indicator (PMI), wherein the first PMI is the PMI corresponding to the beam between the terminal device and the relay device;

[0071] Quality indication information of the beam corresponding to the first PMI;

[0072] Beam measurement information corresponding to the beam between the terminal device and the relay device, wherein the beam measurement information includes a resource identifier ID of a beam measurement reference signal and / or a beam quality measurement value corresponding to the beam measurement reference signal.

[0073] Specifically, in one embodiment of the present disclosure, the first beam-related information may include: a first PMI and / or quality indication information of a beam corresponding to the first PMI. The first PMI is: a PMI corresponding to a beam between a terminal device and a relay device; the first PMI may indicate a beam direction of the beam between the terminal device and the relay device; the quality indication information of the beam corresponding to the first PMI may indicate a beam quality of the beam between the terminal device and the relay device; the quality indication information of the beam corresponding to the first PMI may include at least one of the following:

[0074] Reference Signal Receiving Power (RSRP) of the beam corresponding to the first PMI;

[0075] The signal-to-interference plus noise ratio (SINR) of the beam corresponding to the first PMI;

[0076] Reference Signal Receiving Quality (RSRQ) of the beam corresponding to the first PMI;

[0077] The first PMI corresponds to the received signal strength indication (RSSI) of the beam.

[0078] Alternatively, in another embodiment of the present disclosure, the first beam-related information may include: beam measurement information corresponding to the beam between the terminal device and the relay device; the beam measurement information may include: a resource identifier (identity, ID) of a beam measurement reference signal and / or a beam quality measurement corresponding to the beam measurement reference signal. The resource ID of the beam measurement reference signal may indicate a beam direction of the beam between the terminal device and the relay device; the beam quality measurement corresponding to the beam measurement reference signal may indicate a beam quality of the beam between the terminal device and the relay device; and the beam quality measurement may include at least one of RSRP, RSRQ, SINR, and RSSI.

[0079] It should be understood that the first beam-related information may include one or more of the first PMI, quality indication information of the beam corresponding to the first PMI, and beam measurement information corresponding to the beam between the terminal device and the relay device. Other beam-related information is also possible, and the present disclosure does not limit this.

[0080] Step 202: Obtain beam determination information based on the first beam-related information. The beam determination information is used to determine a target beam. The target beam is a beam used by the relay device to relay and forward to at least one terminal device.

[0081] In one embodiment of the present disclosure, the step of acquiring the beam determination information based on the first beam-related information may include the following steps:

[0082] Step a: Determine first beam direction information corresponding to a beam between at least one terminal device and a relay device based on first beam related information of at least one terminal device.

[0083] In one embodiment of the present disclosure, the first beam direction information corresponding to the beam between the terminal device and the relay device includes:

[0084] a first-dimension angle value of a beam between the terminal device and the relay device, where the first-dimension angle value is: an angle value of the beam between the terminal device and the relay device relative to a reference direction in the first dimension; and

[0085] The second dimension angle value of the beam between the terminal device and the relay device, where the second dimension angle value is: the angle value of the beam between the terminal device and the relay device relative to the reference direction in the second dimension.

[0086] The first and second dimensions can be perpendicular to each other, for example, the first dimension can be a horizontal dimension and the second dimension can be a vertical dimension. Alternatively, the first dimension can be a vertical dimension and the second dimension can be a horizontal dimension. Furthermore, the reference direction can be, for example, the normal direction of the reflective surface of the relay device. However, other positional relationships between the two dimensions are also possible.

[0087] It should be noted that the first dimension angle value and the second dimension angle value of the beam between the terminal device and the relay device determined above are mainly used for the subsequent determination of the beam direction of the target beam. Among them, since the beam direction can be determined by the direction angle of two dimensions in three-dimensional space, only the first dimension angle value and the second dimension angle value are determined in the present disclosure. However, it should be understood that determining the beam direction of the target beam by determining the angle values ​​of two dimensions in the present disclosure is only an example, and it is also possible to determine the beam direction of the target beam by determining the angle values ​​of multiple dimensions (such as three dimensions), and the present disclosure does not limit this.

[0088] Step b: setting a first weighted value and a second weighted value for at least one terminal device.

[0089] In one embodiment of the present disclosure, the first weighted value and the second weighted value are both greater than or equal to 0 and less than or equal to 1, and the sum of the first weighted values ​​of all terminal devices is 1, and the sum of the second weighted values ​​of all terminal devices is 1.

[0090] And, in one embodiment of the present disclosure, the above-mentioned setting of the first weighted value and the second weighted value for at least one terminal device may include: setting the first weighted value and the second weighted value for at least one terminal device based on the first beam-related information reported by the at least one terminal device; wherein the quality indicated by the first beam-related information reported by the terminal device is positively correlated with the first weighted value and the second weighted value of the terminal device. That is, when the quality indicated by the first beam-related information reported by the terminal device is higher (such as the quality indicated by the quality indication information of the beam corresponding to the first PMI reported by the terminal device and / or the quality indicated by the beam quality measurement amount corresponding to the beam measurement reference signal reported by the terminal device is higher), the first weighted value and the second weighted value set for the terminal device are larger.

[0091] For example, assume that the current communication scenario includes three terminal devices, namely terminal device #1, terminal device #2, and terminal device #3. The first beam-related information reported by the three terminal devices is the first PMI and the quality indication information of the beam corresponding to the first PMI; wherein, if the quality indicated by the quality indication information of the beam corresponding to the first PMI reported by terminal device #1 is higher than the quality indicated by the quality indication information of the beam corresponding to the first PMI reported by terminal device #3 and higher than the quality indicated by the quality indication information of the beam corresponding to the first PMI reported by terminal device #2. The first weighted value set by the base station for terminal device #1 should be greater than the first weighted value set for terminal device #3 and greater than the first weighted value set for terminal device #2. Furthermore, the second weighted value set by the base station for terminal device #1 should be greater than the second weighted value set for terminal device #3 and greater than the second weighted value set for terminal device #2. For example, the first weighted values ​​set for terminal device #1, terminal device #2, and terminal device #3 can be 0.5, 0.2, and 0.3, respectively; and the second weighted values ​​set for terminal device #1, terminal device #2, and terminal device #3 can be 0.6, 0.15, and 0.25, respectively. It should be understood that other first and second weighted values ​​that satisfy the aforementioned magnitude relationships are also possible.

[0092] Alternatively, in another embodiment of the present disclosure, the above-mentioned setting of the first weighted value and the second weighted value for at least one terminal device may include: setting the first weighted value and the second weighted value of the terminal device corresponding to the first beam-related information with the highest quality indicated in the reported first beam-related information to 1 (such as setting the first weighted value and the second weighted value of the terminal device with the highest quality indicated in the quality indication information of the beam corresponding to the reported first PMI and / or the first weighted value and the second weighted value of the terminal device with the highest quality indicated by the beam quality measurement amount corresponding to the reported beam measurement reference signal to 1), and setting the first weighted value and the second weighted value of other terminal devices to 0.

[0093] For example, it is assumed that the current communication scenario includes three terminal devices, namely terminal device #1, terminal device #2, and terminal device #3. And the first beam-related information reported by the three terminal devices are all the first PMI and the quality indication information of the beam corresponding to the first PMI; wherein, if the quality indicated by the quality indication information of the beam corresponding to the first PMI reported by terminal device #1 is higher than the quality indicated by the quality indication information of the beam corresponding to the first PMI reported by terminal device #3 and higher than the quality indicated by the quality indication information of the beam corresponding to the first PMI reported by terminal device #2. It can be determined that the quality of the beam between terminal device #1 and the relay device is the highest. At this time, the first weighted value and the second weighted value set by the base station for terminal device #1 can both be 1, and the first weighted value and the second weighted value set for terminal device #2 and terminal device #3 can both be 0.

[0094] It should be noted that, in one embodiment of the present disclosure, if the current communication scenario only includes one terminal device and there are no other terminal devices (that is, the number of other terminals is 0), then in the above step a, the base station can directly determine the first dimension angle value and the second dimension angle value of the beam between the terminal device and the relay device as the first beam direction information; and directly set the first weighted value and the second weighted value of the terminal device to 1.

[0095] Step c: determining the first beam direction information, the first weighted value, and the second weighted value corresponding to at least one terminal device as the beam determination information

[0096] In summary, in the beam determination method provided by the present disclosure, the base station will receive first beam related information reported by at least one terminal device, and the first beam related information is related information corresponding to the beam between the terminal device and the relay device. Afterwards, the base station will obtain beam determination information based on the first beam related information, and the beam determination information is used to determine the target beam, and the target beam is: the beam used when the relay device relays to at least one terminal device. It can be seen that the present disclosure provides a beam determination method for determining the target beam used when the relay device forwards a signal sent by the base station to at least one terminal device. The method of the present disclosure is relatively concise and can quickly and effectively determine the relay forwarding direction in a multi-user scenario. Moreover, when determining the target beam, the present disclosure also takes into account the beam quality of the beam between the terminal device and the relay device, so that the beam direction of the determined target beam will be infinitely close to the direction of the beam with high beam quality, thereby ensuring the beam quality of the determined target beam. Therefore, when the relay device forwards the signal sent by the base station to at least one terminal device based on the target beam, the forwarding accuracy can be ensured, so that at least one terminal device can accurately receive the signal forwarded by the relay device, thereby improving the signal transmission accuracy.

[0097] FIG3 is a flow chart of a beam determination method provided by an embodiment of the present disclosure. The method is executed by a base station. As shown in FIG3 , the beam determination method may include the following steps:

[0098] Step 301: Determine a target beam based on beam determination information, and send second beam-related information to a relay device, where the second beam-related information includes relevant information of the target beam.

[0099] In one embodiment of the present disclosure, after the base station determines the beam determination information, it can first determine the target beam based on the beam information, and then send second beam-related information to the relay device, so that the relay device can directly use the target beam based on the second beam-related information to forward the signal sent by the base station to at least one terminal device without the need for the relay device to determine the target beam by itself. The signal sent by the base station can be understood as: a communication interaction signal that the base station wants to send to one or more terminal devices, and the communication interaction signal can be forwarded by the relay device to one or more terminal devices.

[0100] Furthermore, in one embodiment of the present disclosure, the method for determining a target beam based on beam determination information may include the following steps:

[0101] Step 1: Sum the product of the first dimension angle value of the beam between at least one terminal device and the relay device and the first weighted value of at least one terminal device to obtain the first dimension angle value of the target beam.

[0102] For example, it is assumed that the current communication scenario includes three terminal devices, namely terminal device #1, terminal device #2, and terminal device #3. The base station determines the first dimension angle values ​​of the beams between terminal device #1, terminal device #2, terminal device #3 and the relay device based on the first beam related information reported by the three terminal devices: α1, α2, α3; wherein the first weighted values ​​set for terminal device #1, terminal device #2, and terminal device #3 are: c1, c2 , c3∈[0,1], c1+c2+c3=1; then the calculated first dimension angle value of the target beam can be: c1*α1+c2*α2+c3*α3.

[0103] Step 2: Sum the product of the second dimension angle value of the beam between at least one terminal device and the relay device and the second weighted value of at least one terminal device to obtain the second dimension angle value of the target beam.

[0104] For example, assume that the current communication scenario includes three terminal devices, namely terminal device #1, terminal device #2, and terminal device #3, wherein the base station determines the second dimension angle values ​​of the beams between terminal device #1, terminal device #2, terminal device #3 and the relay device based on the first beam-related information reported by the three terminal devices, which are: β1, β2, β3; wherein the second weighted values ​​set for terminal device #1, terminal device #2, and terminal device #3 are: d1, d2, d3∈[0,1], d1+d2+d3=1; then the calculated second dimension angle value of the target beam can be: d1*β1+d2*β2+d3*β3.

[0105] Step 3: Determine the target beam based on the first dimension angle value of the target beam and the second dimension angle value of the target beam.

[0106] It can be seen from the above steps 1 to 3 that the base station determines the beam direction of the target beam used when the relay device forwards the signal to at least one terminal device by weighting the beam directions of the beams between each terminal device and the relay device and then summing them. Referring to the relevant introduction of the above step 202, it can be seen that the weighted value of each terminal device (i.e., the first weighted value and the second weighted value) is specifically related to the quality of the beam between the terminal device and the relay device. For example, the weighted value of each terminal device can be positively correlated with the quality of the beam between the terminal device and the relay device, or the weighted value of the terminal device with the highest quality of the beam between the relay device is 1, and the weighted values ​​of other terminal devices are 0. It can be seen that in the present disclosure, the higher the quality of the beam between the terminal device and the relay device, the greater the weighted value of the terminal device. Based on this, when the beam direction of the target beam is determined by the above-mentioned weighted summation method, the beam direction of the determined target beam can be made infinitely close to the direction of the beam with high beam quality, thereby ensuring the beam quality of the determined target beam. Therefore, when the relay device forwards the signal sent by the base station to at least one terminal device based on the target beam, the forwarding accuracy can be ensured, so that at least one terminal device can accurately receive the signal forwarded by the relay device, thereby improving the signal transmission accuracy.

[0107] Furthermore, in one embodiment of the present disclosure, the second beam direction information may include at least one of the following:

[0108] Second beam direction information, the second beam direction information including a first dimension angle value of the target beam and a second dimension angle value of the target beam;

[0109] The beam index corresponding to the target beam, where the beam index may be pre-defined by the base station and the relay device;

[0110] Information of the reference signal corresponding to the target beam;

[0111] Phase adjustment information of the antenna port or antenna unit of the relay device corresponding to the target beam; wherein the phase adjustment information is used to: adjust the antenna port or antenna unit of the relay device based on the phase adjustment information so that the relay device can transmit a signal based on the target beam;

[0112] A second PMI, where the second PMI is the PMI corresponding to the target beam.

[0113] In summary, in the beam determination method provided by the present disclosure, after the base station obtains the beam determination information, it will determine the target beam based on the beam determination information and send second beam-related information to the relay device, and the second beam-related information includes relevant information about the target beam. It can be seen that the present disclosure provides a beam determination method for determining the target beam used when the relay device forwards the signal sent by the base station to at least one terminal device. The method of the present disclosure is relatively concise and can quickly and effectively determine the relay forwarding direction in a multi-user scenario. In addition, when determining the target beam, the present disclosure will also take into account the beam quality of the beam between the terminal device and the relay device, so that the beam direction of the determined target beam will be infinitely close to the direction of the beam with high beam quality, thereby ensuring the beam quality of the determined target beam. Therefore, when the relay device forwards the signal sent by the base station to at least one terminal device based on the target beam, the forwarding accuracy can be ensured, so that at least one terminal device can accurately receive the signal forwarded by the relay device, thereby improving the signal transmission accuracy.

[0114] FIG4 is a flow chart of a beam determination method provided by an embodiment of the present disclosure. The method is executed by a base station. As shown in FIG4 , the beam determination method may include the following steps:

[0115] Step 401: Send beam determination information to a relay device so that the relay device determines a target beam.

[0116] In one embodiment of the present disclosure, after the base station determines the beam determination information, it can directly send the beam determination information to the relay device, so that the relay device can determine the target beam to be used when forwarding the signal sent by the base station based on the beam determination information.

[0117] In summary, in the beam determination method provided by the present disclosure, after the base station obtains the beam determination information, it will send the beam determination information to the relay device so that the relay device determines the target beam. It can be seen that the present disclosure provides a beam determination method for determining the target beam used when the relay device forwards the signal sent by the base station to at least one terminal device. The method of the present disclosure is relatively concise and can quickly and effectively determine the relay forwarding direction in a multi-user scenario. In addition, when determining the target beam, the present disclosure will also take into account the beam quality of the beam between the terminal device and the relay device, so that the beam direction of the determined target beam will be infinitely close to the direction of the beam with high beam quality, thereby ensuring the beam quality of the determined target beam. Therefore, when the relay device forwards the signal sent by the base station to at least one terminal device based on the target beam, the forwarding accuracy can be ensured, so that at least one terminal device can accurately receive the signal forwarded by the relay device, thereby improving the signal transmission accuracy.

[0118] FIG5 is a flow chart of a beam determination method provided by an embodiment of the present disclosure. The method is performed by a relay device. As shown in FIG5 , the beam determination method may include the following steps:

[0119] Step 501: Determine the target beam.

[0120] In one embodiment of the present disclosure, a method for a relay device to determine a target beam may include at least one of the following:

[0121] receiving beam determination information sent by a base station, and determining a target beam based on the beam determination information;

[0122] Second beam related information sent by a base station is received, where the second beam related information includes related information of the target beam.

[0123] Also, for a detailed description of step 501 , reference may be made to the above embodiment description.

[0124] In summary, in the beam determination method provided by the present disclosure, the relay device determines the target beam, wherein determining the target beam includes: receiving beam determination information sent by the base station, and determining the target beam based on the beam determination information; and / or receiving second beam-related information sent by the base station, wherein the second beam-related information includes relevant information about the target beam. It can be seen that the present disclosure provides a beam determination method for determining the target beam used when the relay device forwards a signal sent by the base station to at least one terminal device. The method of the present disclosure is relatively simple and can quickly and effectively determine the relay forwarding direction in a multi-user scenario. In addition, when determining the target beam, the present disclosure also takes into account the beam quality of the beam between the terminal device and the relay device, so that the beam direction of the determined target beam is infinitely close to the direction of the beam with high beam quality, thereby ensuring the beam quality of the determined target beam. Therefore, when the relay device forwards the signal sent by the base station to at least one terminal device, the forwarding accuracy can be ensured, so that at least one terminal device can accurately receive the signal forwarded by the relay device, thereby improving the signal transmission accuracy.

[0125] FIG6 is a flow chart of a beam determination method provided by an embodiment of the present disclosure. The method is performed by a relay device. As shown in FIG6 , the beam determination method may include the following steps:

[0126] Step 601: Receive beam determination information sent by a base station, and determine a target beam based on the beam determination information.

[0127] Among them, the method in which the relay device in this step determines the target beam based on the beam determination information is similar to the method in which the base station determines the target beam based on the beam determination information mentioned above, and the embodiments of the present disclosure are not repeated here.

[0128] For a detailed description of step 601 , reference may be made to the above embodiment description.

[0129] In summary, in the beam determination method provided by the present disclosure, the relay device will receive the beam determination information sent by the base station, and will determine the target beam based on the beam determination information. It can be seen that the present disclosure provides a beam determination method for determining the target beam used when the relay device forwards the signal sent by the base station to at least one terminal device. The method of the present disclosure is relatively concise and can quickly and effectively determine the relay forwarding direction in a multi-user scenario. In addition, when determining the target beam, the present disclosure will also take into account the beam quality of the beam between the terminal device and the relay device, so that the beam direction of the determined target beam will be infinitely close to the direction of the beam with high beam quality, thereby ensuring the beam quality of the determined target beam. Therefore, when the relay device forwards the signal sent by the base station to at least one terminal device, the forwarding accuracy can be ensured, so that at least one terminal device can accurately receive the signal forwarded by the relay device, thereby improving the signal transmission accuracy.

[0130] FIG7a is a flow chart of a beam determination method provided by an embodiment of the present disclosure. The method is performed by a relay device. As shown in FIG7 , the beam determination method may include the following steps:

[0131] Step 701a: Receive second beam related information sent by the base station, where the second beam related information includes related information of the target beam.

[0132] In summary, in the beam determination method provided by the present disclosure, the relay device will receive the second beam related information sent by the base station, and the second beam related information includes the related information of the target beam. It can be seen that the present disclosure provides a beam determination method for determining the target beam used when the relay device forwards the signal sent by the base station to at least one terminal device. The method of the present disclosure is relatively concise and can quickly and effectively determine the relay forwarding direction in a multi-user scenario. In addition, when determining the target beam, the present disclosure will also take into account the beam quality of the beam between the terminal device and the relay device, so that the beam direction of the determined target beam will be infinitely close to the direction of the beam with high beam quality, thereby ensuring the beam quality of the determined target beam. Therefore, when the relay device forwards the signal sent by the base station to at least one terminal device, the forwarding accuracy can be ensured, so that at least one terminal device can accurately receive the signal forwarded by the relay device, thereby improving the signal transmission accuracy.

[0133] FIG7 b is a flow chart of a beam determination method provided in an embodiment of the present disclosure. The method is performed by a relay device. As shown in FIG7 , the beam determination method may include the following steps:

[0134] Step 701b: forward the signal sent by the base station to at least one terminal device based on the target beam.

[0135] Among them, in one embodiment of the present disclosure, when the base station sends second beam related information to the relay device, if the second beam related information sent by the base station is different, the beam forming situation when the relay device forwards the signal sent by the base station to at least one terminal device based on the target beam will also be different. Specifically, when the base station sends second beam related information to the relay device including second beam direction information, a beam index corresponding to the target beam, information of a reference signal corresponding to the target beam, and phase adjustment information of the antenna port or antenna unit of the relay device corresponding to the target beam, the beam forming situation when the relay device forwards the signal sent by the base station to the terminal device based on the target beam is: analog beam forming; when the base station sends second beam related information to the relay device including a second PMI, the beam forming situation when the relay device forwards the signal sent by the base station to the terminal device based on the target beam is: digital beam forming (i.e., precoding).

[0136] In summary, in the beam determination method provided by the present disclosure, the relay device will determine the target beam, wherein determining the target beam includes: receiving beam determination information sent by the base station, and determining the target beam based on the beam determination information; and / or receiving second beam-related information sent by the base station, wherein the second beam-related information includes relevant information about the target beam. It can be seen that the present disclosure provides a beam determination method for determining the target beam used when the relay device forwards a signal sent by the base station to at least one terminal device. The method of the present disclosure is relatively concise and can quickly and effectively determine the relay forwarding direction in a multi-user scenario. Moreover, when determining the target beam, the present disclosure will also take into account the beam quality of the beam between the terminal device and the relay device, so that the beam direction of the determined target beam will be infinitely close to the direction of the beam with high beam quality, thereby ensuring the beam quality of the determined target beam. Therefore, when the relay device forwards the signal sent by the base station to at least one terminal device, the forwarding accuracy can be ensured, so that at least one terminal device can accurately receive the signal forwarded by the relay device, thereby improving the signal transmission accuracy.

[0137] FIG8 is a flow chart of a beam determination method provided in an embodiment of the present disclosure. The method is executed by a terminal device. As shown in FIG8 , the beam determination method may include the following steps:

[0138] Step 801: Report first beam related information to a base station, where the first beam related information is related information corresponding to the beam between a terminal device and a relay device.

[0139] Optionally, the first beam-related information indicates at least one of the following:

[0140] The beam direction of the beam between the terminal device and the relay device;

[0141] Beam quality between the terminal device and the relay device.

[0142] Optionally, the first beam-related information includes at least one of the following:

[0143] A first PMI, wherein the first PMI is a PMI corresponding to the beam between the terminal device and the relay device;

[0144] Quality indication information of the beam corresponding to the first PMI;

[0145] Beam measurement information corresponding to the beam between the terminal device and the relay device, wherein the beam measurement information includes a resource identifier ID of a beam measurement reference signal and / or a beam quality measurement value corresponding to the beam measurement reference signal.

[0146] Optionally, the quality indication information of the beam corresponding to the first PMI includes at least one of the following:

[0147] RSRP of the beam corresponding to the first PMI;

[0148] SINR of the beam corresponding to the first PMI;

[0149] RSRQ of the beam corresponding to the first PMI;

[0150] The first PMI corresponds to the RSSI of the beam.

[0151] Optionally, the beam quality measurement includes at least one of RSRP, RSRQ, SINR, and RSSI.

[0152] For a detailed description of step 801, please refer to the above embodiment description.

[0153] In summary, in the beam determination method provided by the present disclosure, the terminal device reports first beam-related information to the base station, and the first beam-related information is the related information corresponding to the beam between the terminal device and the relay device. The relay device will receive the target beam indicated by the base station, so that the base station determines the target beam during relay forwarding based on the first beam-related information and indicates it to the relay device, and / or, the base station determines the beam determination information based on the first beam-related information and indicates it to the relay device, and the relay device determines the target beam during relay forwarding based on the beam determination information. It can be seen that the present disclosure provides a beam determination method for determining the target beam used when a relay device forwards a signal sent by a base station to at least one terminal device. The method of the present disclosure is relatively concise and can quickly and effectively determine the relay forwarding direction in a multi-user scenario. Moreover, when determining the target beam, the present invention also takes into account the beam quality of the beam between the terminal device and the relay device, so that the beam direction of the determined target beam will be infinitely close to the direction of the beam with high beam quality, thereby ensuring the beam quality of the determined target beam. Therefore, when the relay device forwards the signal sent by the base station to at least one terminal device, the forwarding accuracy can be ensured, so that at least one terminal device can accurately receive the signal forwarded by the relay device, thereby improving the signal transmission accuracy.

[0154] FIG9 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure. As shown in FIG9 , the device may include:

[0155] a transceiver module, configured to receive first beam-related information reported by at least one terminal device, where the first beam-related information includes relevant information corresponding to the beam between the terminal device and the relay device;

[0156] A processing module is used to obtain beam determination information based on the first beam-related information, and the beam determination information is used to determine a target beam, wherein the target beam includes the beam used by the relay device when relaying to at least one terminal device.

[0157] In summary, in the communication device provided in the embodiment of the present disclosure, the base station will receive first beam related information reported by at least one terminal device, and the first beam related information is related information corresponding to the beam between the terminal device and the relay device. Afterwards, the base station will obtain beam determination information based on the first beam related information, and the beam determination information is used to determine the target beam, and the target beam is: the beam used when the relay device relays to at least one terminal device. It can be seen that the present disclosure provides a beam determination method for determining the target beam used when the relay device forwards a signal sent by the base station to at least one terminal device. The method of the present disclosure is relatively concise and can quickly and effectively determine the relay forwarding direction in a multi-user scenario. Moreover, when determining the target beam, the present disclosure also takes into account the beam quality of the beam between the terminal device and the relay device, so that the beam direction of the determined target beam will be infinitely close to the direction of the beam with high beam quality, thereby ensuring the beam quality of the determined target beam. Therefore, when the relay device forwards the signal sent by the base station to at least one terminal device based on the target beam, the forwarding accuracy can be ensured, so that at least one terminal device can accurately receive the signal forwarded by the relay device, thereby improving the signal transmission accuracy.

[0158] Optionally, in one embodiment of the present disclosure, the device is further used for at least one of the following:

[0159] A target beam is determined based on the beam determination information, and second beam-related information is sent to the relay device, where the second beam-related information includes information related to the target beam.

[0160] The beam determination information is sent to the relay device so that the relay device determines a target beam.

[0161] Optionally, in one embodiment of the present disclosure, the first beam-related information indicates at least one of the following:

[0162] The beam direction of the beam between the terminal device and the relay device;

[0163] Beam quality between the terminal device and the relay device.

[0164] Optionally, in one embodiment of the present disclosure, the first beam-related information includes at least one of the following:

[0165] A first precoding matrix identifier PMI, wherein the first PMI is a PMI corresponding to a beam between the terminal device and the relay device;

[0166] Quality indication information of the beam corresponding to the first PMI;

[0167] Beam measurement information corresponding to the beam between the terminal device and the relay device, wherein the beam measurement information includes a resource identifier ID of a beam measurement reference signal and / or a beam quality measurement value corresponding to the beam measurement reference signal.

[0168] Optionally, in one embodiment of the present disclosure, the quality indication information of the beam corresponding to the first PMI includes at least one of the following:

[0169] Reference signal received power (RSRP) of the beam corresponding to the first PMI;

[0170] The signal-to-noise ratio (SINR) of the beam corresponding to the first PMI;

[0171] Reference signal received quality (RSRQ) of the beam corresponding to the first PMI;

[0172] The first PMI corresponds to the received signal strength indicator RSSI of the beam.

[0173] Optionally, in one embodiment of the present disclosure, the beam quality measurement includes at least one of RSRP, RSRQ, SINR, and RSSI.

[0174] Optionally, in one embodiment of the present disclosure, the processing module is further configured to:

[0175] Determine first beam direction information corresponding to a beam between at least one terminal device and a relay device based on first beam related information of at least one terminal device;

[0176] Setting a first weighted value and a second weighted value for at least one terminal device respectively;

[0177] The first beam direction information, the first weighting value, and the second weighting value corresponding to at least one terminal device are determined as the beam determination information.

[0178] Optionally, in one embodiment of the present disclosure, the first beam direction information corresponding to the beam between the terminal device and the relay device includes:

[0179] A first-dimension angle value of a beam between a terminal device and a relay device, where the first-dimension angle value is: an angle value of the beam between the terminal device and the relay device relative to a reference direction in the first dimension;

[0180] The second dimension angle value of the beam between the terminal device and the relay device, the second dimension angle value is: the angle value of the beam between the terminal device and the relay device relative to the reference direction in the second dimension.

[0181] Optionally, in one embodiment of the present disclosure, the processing module is further configured to:

[0182] A first weighting value and a second weighting value are set for at least one terminal device based on the first beam-related information reported by the terminal device; wherein the quality indicated by the first beam-related information reported by the terminal device is positively correlated with the first weighting value and the second weighting value of the terminal device.

[0183] Optionally, in one embodiment of the present disclosure, the processing module is further configured to:

[0184] The first weighted value and the second weighted value of the terminal device corresponding to the first beam related information with the highest quality indicated in the reported first beam related information are set to 1, and the first weighted value and the second weighted value of other terminal devices are set to 0.

[0185] Optionally, in one embodiment of the present disclosure, the method is further used to:

[0186] The first dimension angle value of the target beam is obtained by summing the product of the first dimension angle value of the beam between at least one terminal device and the relay device and the first weighted value of at least one terminal device;

[0187] The second dimension angle value of the target beam is obtained by summing the product of the second dimension angle value of the beam between at least one terminal device and the relay device and the second weighted value of at least one terminal device;

[0188] The target beam is determined based on the first dimension angle value of the target beam and the second dimension angle value of the target beam.

[0189] Optionally, in one embodiment of the present disclosure, the second beam-related information includes at least one of the following:

[0190] Second beam direction information, the second beam direction information including a first dimension angle value of the target beam and a second dimension angle value of the target beam;

[0191] The beam index corresponding to the target beam;

[0192] Information of the reference signal corresponding to the target beam;

[0193] Phase adjustment information of the antenna port or antenna unit of the relay device corresponding to the target beam; wherein the phase adjustment information is used to: adjust the antenna port or antenna unit of the relay device based on the phase adjustment information so that the relay device can transmit a signal based on the target beam;

[0194] A second PMI, where the second PMI is the PMI corresponding to the target beam.

[0195] FIG10 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure. As shown in FIG10 , the device may include:

[0196] A processing module is configured to determine a target beam, wherein the processing module is further configured to perform at least one of the following:

[0197] receiving beam determination information sent by a base station, and determining a target beam based on the beam determination information;

[0198] Second beam related information sent by a base station is received, where the second beam related information includes related information of the target beam.

[0199] In summary, in the communication device provided by the embodiment of the present disclosure, the terminal device reports the first beam-related information to the base station, and the first beam-related information is the related information corresponding to the beam between the terminal device and the relay device. The relay device will receive the target beam indicated by the base station, so that the base station determines the target beam during relay forwarding based on the first beam-related information and indicates it to the relay device, and / or, the base station determines the beam determination information based on the first beam-related information and indicates it to the relay device, and the relay device determines the target beam during relay forwarding based on the beam determination information. It can be seen that the present disclosure provides a beam determination method for determining the target beam used when the relay device forwards a signal sent by the base station to at least one terminal device. The method of the present disclosure is relatively concise and can quickly and effectively determine the relay forwarding direction in a multi-user scenario. Moreover, when determining the target beam, the present invention also takes into account the beam quality of the beam between the terminal device and the relay device, so that the beam direction of the determined target beam will be infinitely close to the direction of the beam with high beam quality, thereby ensuring the beam quality of the determined target beam. Therefore, when the relay device forwards the signal sent by the base station to at least one terminal device, the forwarding accuracy can be ensured, so that at least one terminal device can accurately receive the signal forwarded by the relay device, thereby improving the signal transmission accuracy.

[0200] Optionally, in one embodiment of the present disclosure, the apparatus is further configured to:

[0201] The signal sent by the base station is forwarded to at least one terminal device based on the target beam.

[0202] Optionally, in one embodiment of the present disclosure, the beam determination information includes: first beam direction information, a first weighting value, and a second weighting value corresponding to a beam between at least one terminal device and a relay device;

[0203] The first beam direction information corresponding to the beam between the terminal device and the relay device includes:

[0204] A first-dimension angle value of a beam between a terminal device and a relay device, where the first-dimension angle value is: an angle value of the beam between the terminal device and the relay device relative to a reference direction in the first dimension;

[0205] The second dimension angle value of the beam between the terminal device and the relay device, the second dimension angle value is: the angle value of the beam between the terminal device and the relay device relative to the reference direction in the second dimension.

[0206] Optionally, in one embodiment of the present disclosure, the processing module is further configured to:

[0207] The first dimension angle value of the target beam is obtained by summing the product of the first dimension angle value of the beam between at least one terminal device and the relay device and the first weighted value of at least one terminal device;

[0208] The second dimension angle value of the target beam is obtained by summing the product of the second dimension angle value of the beam between at least one terminal device and the relay device and the second weighted value of at least one terminal device;

[0209] The target beam is determined based on the first dimension angle value of the target beam and the second dimension angle value of the target beam.

[0210] Optionally, in one embodiment of the present disclosure, the second beam-related information includes at least one of the following:

[0211] Second beam direction information, the second beam direction information including a first dimension angle value of the target beam and a second dimension angle value of the target beam;

[0212] The beam index corresponding to the target beam;

[0213] Information of the reference signal corresponding to the target beam;

[0214] Phase adjustment information of the antenna port or antenna unit of the relay device corresponding to the target beam; wherein the phase adjustment information is used to: adjust the antenna port or antenna unit of the relay device based on the phase adjustment information so that the relay device can transmit a signal based on the target beam;

[0215] A second PMI, where the second PMI is the PMI corresponding to the target beam.

[0216] FIG11 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure. As shown in FIG11 , the device may include:

[0217] The transceiver module is used to report the first beam related information to the base station, where the first beam related information is the related information corresponding to the beam between the terminal device and the relay device.

[0218] In summary, in the communication device provided by the embodiment of the present disclosure, the relay device will receive the beam determination information indicated by the base station and determine the target beam based on the beam determination information; and / or the relay device will receive the target beam indicated by the base station; and the relay device will forward the signal sent by the base station to the terminal device based on the target beam. It can be seen that the present disclosure provides a beam determination method for determining the target beam used when the relay device forwards the signal sent by the base station to at least one terminal device. The method of the present disclosure is relatively simple and can quickly and effectively determine the relay forwarding direction in a multi-user scenario. In addition, when determining the target beam, the present disclosure also takes into account the beam quality of the beam between the terminal device and the relay device, so that the beam direction of the determined target beam will be infinitely close to the direction of the beam with high beam quality, thereby ensuring the beam quality of the determined target beam. Therefore, when the relay device forwards the signal sent by the base station to at least one terminal device, the forwarding accuracy can be ensured, so that at least one terminal device can accurately receive the signal forwarded by the relay device, thereby improving the signal transmission accuracy.

[0219] Optionally, in one embodiment of the present disclosure, the first beam-related information indicates at least one of the following:

[0220] The beam direction of the beam between the terminal device and the relay device;

[0221] Beam quality between the terminal device and the relay device.

[0222] Optionally, in one embodiment of the present disclosure, the first beam-related information includes at least one of the following:

[0223] A first PMI, wherein the first PMI is a PMI corresponding to the beam between the terminal device and the relay device;

[0224] Quality indication information of the beam corresponding to the first PMI;

[0225] Beam measurement information corresponding to the beam between the terminal device and the relay device, wherein the beam measurement information includes a resource identifier ID of a beam measurement reference signal and / or a beam quality measurement value corresponding to the beam measurement reference signal.

[0226] Optionally, in one embodiment of the present disclosure, the quality indication information of the beam corresponding to the first PMI includes at least one of the following:

[0227] RSRP of the beam corresponding to the first PMI;

[0228] SINR of the beam corresponding to the first PMI;

[0229] RSRQ of the beam corresponding to the first PMI;

[0230] The first PMI corresponds to the RSSI of the beam.

[0231] Optionally, in one embodiment of the present disclosure, the beam quality measurement includes at least one of RSRP, RSRQ, SINR, and RSSI.

[0232] Please refer to Figure 12, which is a schematic diagram of the structure of a communication device 1200 provided in an embodiment of the present application. Communication device 1200 can be a base station or a terminal device, or a chip, chip system, or processor that supports a base station in implementing the above method. It can also be a chip, chip system, or processor that supports a terminal device in implementing the above method. This device can be used to implement the method described in the above method embodiment. For details, please refer to the description of the above method embodiment.

[0233] The communication device 1200 may include one or more processors 1201. The processor 1201 may be a general-purpose processor or a dedicated processor. For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control the communication device (e.g., a base station, a baseband chip, a terminal device, a terminal device chip, a DU or CU, etc.), execute computer programs, and process computer program data.

[0234] Optionally, the communication device 1200 may further include one or more memories 1202, on which a computer program 1204 may be stored. The processor 1201 executes the computer program 1204 to cause the communication device 1200 to perform the method described in the above method embodiment. Optionally, the memory 1202 may also store data. The communication device 1200 and the memory 1202 may be provided separately or integrated together.

[0235] Optionally, the communication device 1200 may further include a transceiver 1205 and an antenna 1206. The transceiver 1205 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, and is configured to implement transceiver functions. The transceiver 1205 may include a receiver and a transmitter. The receiver may be referred to as a receiver or a receiving circuit, and is configured to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, and is configured to implement a transmitting function.

[0236] Optionally, the communication device 1200 may further include one or more interface circuits 1207. The interface circuit 1207 is configured to receive code instructions and transmit the code instructions to the processor 1201. The processor 1201 executes the code instructions to enable the communication device 1200 to perform the method described in the above method embodiment.

[0237] In one implementation, processor 1201 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing the receiving and transmitting functions may be separate or integrated. The transceiver circuit, interface, or interface circuit may be used for reading and writing code / data, or may be used for transmitting or delivering signals.

[0238] In one implementation, processor 1201 may store a computer program 1203. Computer program 1203, when executed on processor 1201, enables communication device 1200 to perform the method described in the above method embodiment. Computer program 1203 may be embedded in processor 1201, in which case processor 1201 may be implemented by hardware.

[0239] In one implementation, the communication device 1200 may include a circuit that can implement the functions of sending, receiving, or communicating in the aforementioned method embodiments. The processor and transceiver described in this application can be implemented on an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (nMetal-oxide-semiconductor, NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0240] The communication device described in the above embodiments may be a base station or a terminal device, but the scope of the communication device described in this application is not limited thereto, and the structure of the communication device may not be limited to FIG12. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be:

[0241] (1) An independent integrated circuit (IC), or chip, or chip system or subsystem;

[0242] (2) a collection of one or more ICs, optionally including a storage component for storing data and computer programs;

[0243] (3) ASIC, such as modem;

[0244] (4) Modules that can be embedded in other devices;

[0245] (5) Receivers, terminal devices, intelligent terminal devices, cellular phones, wireless devices, handheld devices, mobile units, vehicle-mounted devices, base stations, cloud devices, artificial intelligence devices, etc.;

[0246] (6)Others, etc.

[0247] If the communication device can be a chip or a chip system, please refer to the schematic diagram of the chip structure shown in Figure 13. The chip shown in Figure 13 includes a processor 1301 and an interface 1302. The number of processors 1301 can be one or more, and the number of interfaces 1302 can be multiple.

[0248] Optionally, the chip further includes a memory 1303, which is used to store necessary computer programs and data.

[0249] Those skilled in the art will also appreciate that the various illustrative logical blocks and steps listed in the embodiments of the present application can be implemented by electronic hardware, computer software, or a combination of both. Whether such functions are implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art may use various methods to implement the described functions for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of the present application.

[0250] The present application also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.

[0251] The present application also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.

[0252] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0253] Those skilled in the art will understand that the various numerical numbers such as first and second involved in this application are only for the convenience of description and are not used to limit the scope of the embodiments of this application, and also indicate the order of precedence.

[0254] In this application, at least one can also be described as one or more, and multiple can be two, three, four or more, which is not limited in this application. In the embodiments of this application, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", and there is no order of precedence or size between the technical features described by "first", "second", "third", "A", "B", "C" and "D".

[0255] The correspondences shown in the tables in this application can be configured or predefined. The values ​​of the information in each table are examples only and can be configured to other values, which are not limited by this application. When configuring the correspondence between information and parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, in the tables in this application, the correspondences shown in certain rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables can also use other names that can be understood by the communication device, and the values ​​or representations of the parameters can also use other values ​​or representations that can be understood by the communication device. When implementing the above tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables, etc.

[0256] The predefined in this application may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0257] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0258] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0259] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A beam determination method, characterized in that: Executed by a base station, the method includes: Receive first beam-related information reported by at least one terminal device, where the first beam-related information includes relevant information corresponding to a beam between the terminal device and a relay device; Beam determination information is acquired based on the first beam-related information, where the beam determination information is used to determine a target beam, wherein the target beam includes a beam used by a relay device to relay and forward to at least one terminal device.

2. The method according to claim 1, wherein The method further comprises at least one of the following: determining a target beam based on the beam determination information, and sending second beam-related information to the relay device, where the second beam-related information includes relevant information of the target beam; The beam determination information is sent to the relay device so that the relay device determines a target beam.

3. The method according to claim 1, wherein The first beam-related information indicates at least one of the following: The beam direction of the beam between the terminal device and the relay device; Beam quality between the terminal device and the relay device.

4. The method according to claim 1 or 3, wherein: The first beam-related information includes at least one of the following: A first precoding matrix identifier PMI, wherein the first PMI is a PMI corresponding to a beam between the terminal device and the relay device; Quality indication information of the beam corresponding to the first PMI; Beam measurement information corresponding to the beam between the terminal device and the relay device, wherein the beam measurement information includes a resource identifier ID of a beam measurement reference signal and / or a beam quality measurement value corresponding to the beam measurement reference signal.

5. The method according to claim 4, wherein The quality indication information of the beam corresponding to the first PMI includes at least one of the following: Reference signal received power RSRP of the beam corresponding to the first PMI; The signal-to-noise ratio (SINR) of the beam corresponding to the first PMI; Reference signal received quality (RSRQ) of the beam corresponding to the first PMI; The first PMI corresponds to the received signal strength indicator RSSI of the beam.

6. The method according to claim 4, wherein The beam quality measurement includes at least one of RSRP, RSRQ, SINR, and RSSI.

7. The method according to claim 1 or 2, wherein: The acquiring beam determination information based on the first beam-related information includes: Determine first beam direction information corresponding to a beam between at least one terminal device and a relay device based on first beam related information of at least one terminal device; Setting a first weighted value and a second weighted value for at least one terminal device respectively; The first beam direction information, the first weighting value, and the second weighting value corresponding to at least one terminal device are determined as the beam determination information.

8. The method according to claim 7, wherein The first beam direction information corresponding to the beam between the terminal device and the relay device includes: A first-dimension angle value of a beam between a terminal device and a relay device, where the first-dimension angle value is: an angle value of the beam between the terminal device and the relay device relative to a reference direction in the first dimension; The second dimension angle value of the beam between the terminal device and the relay device, the second dimension angle value is: the angle value of the beam between the terminal device and the relay device relative to the reference direction in the second dimension.

9. The method according to claim 7, wherein The step of setting a first weighted value and a second weighted value for at least one terminal device respectively includes: A first weighting value and a second weighting value are set for at least one terminal device based on the first beam-related information reported by the terminal device; wherein the quality indicated by the first beam-related information reported by the terminal device is positively correlated with the first weighting value and the second weighting value of the terminal device.

10. The method according to claim 7, wherein The step of setting a first weighted value and a second weighted value for at least one terminal device respectively includes: The first weighted value and the second weighted value of the terminal device corresponding to the first beam related information with the highest quality indicated in the reported first beam related information are set to 1, and the first weighted value and the second weighted value of other terminal devices are set to 0.

11. The method according to claim 8, wherein The determining a target beam based on the beam determination information includes: The first dimension angle value of the target beam is obtained by summing the product of the first dimension angle value of the beam between at least one terminal device and the relay device and the first weighted value of at least one terminal device; The second dimension angle value of the target beam is obtained by summing the product of the second dimension angle value of the beam between at least one terminal device and the relay device and the second weighted value of at least one terminal device; The target beam is determined based on the first dimension angle value of the target beam and the second dimension angle value of the target beam.

12. The method according to claim 2 or 11, wherein: The second beam-related information includes at least one of the following: Second beam direction information, the second beam direction information including a first dimension angle value of the target beam and a second dimension angle value of the target beam; The beam index corresponding to the target beam; Information of the reference signal corresponding to the target beam; Phase adjustment information of the antenna port or antenna unit of the relay device corresponding to the target beam; wherein the phase adjustment information is used to: adjust the antenna port or antenna unit of the relay device based on the phase adjustment information so that the relay device can transmit a signal based on the target beam; A second PMI, where the second PMI is the PMI corresponding to the target beam.

13. A beam determination method, characterized in that: The method is executed by a relay device, and includes: Determining a target beam, wherein determining the target beam includes at least one of the following: receiving beam determination information sent by a base station, and determining a target beam based on the beam determination information; Second beam related information sent by a base station is received, where the second beam related information includes related information of the target beam.

14. The method according to claim 13, wherein The method further comprises: The signal sent by the base station is forwarded to at least one terminal device based on the target beam.

15. The method according to claim 13, wherein The beam determination information includes: first beam direction information, a first weighting value, and a second weighting value corresponding to a beam between at least one terminal device and a relay device; The first beam direction information corresponding to the beam between the terminal device and the relay device includes: A first-dimension angle value of a beam between a terminal device and a relay device, where the first-dimension angle value is: an angle value of the beam between the terminal device and the relay device relative to a reference direction in the first dimension; The second dimension angle value of the beam between the terminal device and the relay device, the second dimension angle value is: the angle value of the beam between the terminal device and the relay device relative to the reference direction in the second dimension.

16. The method according to claim 14, wherein Determining a target beam based on the beam determination information includes: The first dimension angle value of the target beam is obtained by summing the product of the first dimension angle value of the beam between at least one terminal device and the relay device and the first weighted value of at least one terminal device; The second dimension angle value of the target beam is obtained by summing the product of the second dimension angle value of the beam between at least one terminal device and the relay device and the second weighted value of at least one terminal device; The target beam is determined based on the first dimension angle value of the target beam and the second dimension angle value of the target beam.

17. The method according to claim 13, wherein The second beam-related information includes at least one of the following: Second beam direction information, the second beam direction information including a first dimension angle value of the target beam and a second dimension angle value of the target beam; The beam index corresponding to the target beam; Information of the reference signal corresponding to the target beam; Phase adjustment information of the antenna port or antenna unit of the relay device corresponding to the target beam; wherein the phase adjustment information is used to: adjust the antenna port or antenna unit of the relay device based on the phase adjustment information so that the relay device can transmit a signal based on the target beam; A second PMI, where the second PMI is the PMI corresponding to the target beam.

18. A beam determination method, characterized in that: The method is executed by a terminal device, and includes: Report first beam-related information to the base station, where the first beam-related information is the related information corresponding to the beam between the terminal device and the relay device.

19. The method according to claim 18, wherein The first beam-related information indicates at least one of the following: The beam direction of the beam between the terminal device and the relay device; Beam quality between the terminal device and the relay device.

20. The method according to claim 18 or 19, wherein The first beam-related information includes at least one of the following: A first PMI, wherein the first PMI is a PMI corresponding to the beam between the terminal device and the relay device; Quality indication information of the beam corresponding to the first PMI; Beam measurement information corresponding to the beam between the terminal device and the relay device, wherein the beam measurement information includes a resource identifier ID of a beam measurement reference signal and / or a beam quality measurement value corresponding to the beam measurement reference signal.

21. The method according to claim 20, wherein The quality indication information of the beam corresponding to the first PMI includes at least one of the following: RSRP of the beam corresponding to the first PMI; SINR of the beam corresponding to the first PMI; RSRQ of the beam corresponding to the first PMI; The first PMI corresponds to the RSSI of the beam.

22. The method according to claim 20, wherein The beam quality measurement includes at least one of RSRP, RSRQ, SINR, and RSSI.

23. A communication device, characterized in that: include: a transceiver module, configured to receive first beam-related information reported by at least one terminal device, where the first beam-related information includes relevant information corresponding to the beam between the terminal device and the relay device; A processing module is used to obtain beam determination information based on the first beam-related information, and the beam determination information is used to determine a target beam, wherein the target beam includes the beam used by the relay device when relaying to at least one terminal device.

24. A communication device, characterized in that: include: A processing module is configured to determine a target beam, wherein the processing module is configured to perform at least one of the following: receiving beam determination information sent by a base station, and determining a target beam based on the beam determination information; Second beam related information sent by a base station is received, where the second beam related information includes related information of the target beam.

25. A communication device, characterized in that: include: The transceiver module is used to report the first beam related information to the base station, where the first beam related information is the related information corresponding to the beam between the terminal device and the relay device.

26. A communication device, characterized in that: The device includes a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory so that the device performs the method according to any one of claims 1 to 12, or the processor executes the computer program stored in the memory so that the device performs the method according to any one of claims 1 to 17, or the processor executes the computer program stored in the memory so that the device performs the method according to claims 18 to 22.

27. A communication device, characterized in that: include: processor and interface circuitry, wherein The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to execute the code instructions to perform the method according to any one of claims 1 to 12, or to execute the code instructions to execute the method according to claims 13 to 17, or to execute the code instructions to execute the method according to claims 18 to 22.

28. A computer-readable storage medium storing instructions, which, when executed, enable the method according to any one of claims 1 to 12 to be implemented, or when executed, enable the method according to claims 13 to 17 to be implemented, or when executed, enable the method according to claims 18 to 22 to be implemented.

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