Multi-band communication method and device

Abstract

The invention relates to a multi-band communication method and device. According to the embodiment of the invention, the network equipment can acquire the information of the first frequency band antenna panel and the information of the second frequency band antenna panel of the terminal, and then can perform beam management and / or channel measurement of the second frequency band according to the information of the first frequency band antenna panel and the information of the second frequency band antenna panel. The accuracy of beam management and / or channel measurement of the second frequency band can be ensured. Furthermore, the accuracy of beam management and / or channel measurement of the second frequency band is improved, so that the problem of large time delay caused by scanning high-frequency beams can be reduced, and the efficiency of beam management and / or channel measurement can be improved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a multi-band communication method and device. Background Art

[0002] Currently, the 3rd Generation Partnership Project (3GPP) standard defines two frequency bands: frequency band 1 (FR1) and frequency band 2 (FR2). FR1 ranges from 410 MHz to 7125 MHz, commonly known as low frequency. FR2 ranges from 24250 MHz to 52600 MHz, commonly known as millimeter wave band or high frequency.

[0003] Generally speaking, there may be a certain correlation between the low-frequency channel and the high-frequency channel, so that the network device can estimate the best beam or high-frequency channel information using the low-frequency channel information. However, this estimation method may be inaccurate. Summary of the invention

[0004] The present application provides a multi-band communication method and device, which can improve the accuracy of high-frequency beam management and / or channel measurement.

[0005] In a first aspect, a multi-band communication method is provided, which can be executed by a network device, or by a module (such as a processor, a chip, or a chip system, etc.) applied to the network device, or by a logical node, a logical module, or software that can implement all or part of the network device functions. In the multi-band communication method, first information is received from a terminal, and the first information is used to indicate information of a first-band antenna panel and information of a second-band antenna panel of the terminal; thereby, beam management and / or channel measurement of the second frequency band can be performed based on the information of the first-band antenna panel and the information of the second-band antenna panel.

[0006] It can be seen that in the above implementation, the network device can obtain the information of the first frequency band antenna panel and the second frequency band antenna panel of the terminal, and then can perform beam management and / or channel measurement of the second frequency band according to the information of the first frequency band antenna panel and the second frequency band antenna panel, so that the accuracy of the beam management and / or channel measurement of the second frequency band can be guaranteed. Furthermore, because the accuracy of the beam management and / or channel measurement of the second frequency band is improved, the problem of large delay caused by scanning high-frequency beams can also be reduced, thereby improving the efficiency of beam management and / or channel measurement.

[0007] In a possible embodiment, the information of the antenna panel includes at least one of the following: the position of the antenna panel, the direction of the antenna panel, the number of antenna units included in the antenna panel, and the frequency band of the antenna panel; wherein the direction of the antenna panel is represented by a horizontal angle and / or a vertical angle; and the antenna panel is a first frequency band antenna panel or a second frequency band antenna panel.

[0008] In a possible implementation, the method further includes: determining, based on information about the first frequency band antenna panel and information about the second frequency band antenna panel, that the first frequency band antenna panel and the second frequency band antenna panel are not co-planarly deployed.

[0009] It can be seen that in the above implementation mode, the network device can determine that the first frequency band antenna panel and the second frequency band antenna panel are not deployed on the same antenna surface based on the information of the first frequency band antenna panel and the information of the second frequency band antenna panel. In this way, the network device can be aware of the difference in deployment between the first frequency band antenna panel and the second frequency band antenna panel, and further clarify that the channel information of the first frequency band cannot be directly used for beam management and / or channel measurement of the second frequency band, which also ensures the accuracy of beam management and / or channel measurement of the second frequency band.

[0010] In a possible implementation, based on information of the first frequency band antenna panel and information of the second frequency band antenna panel, determining that the first frequency band antenna panel and the second frequency band antenna panel are not deployed on the same sky surface includes: when a preset condition is met, determining that the first frequency band antenna panel and the second frequency band antenna panel are not deployed on the same sky surface; wherein the preset condition includes at least one of the following: the difference between the position of the first frequency band antenna panel and the position of the second frequency band antenna panel is greater than a first threshold, the difference between the horizontal angle of the first frequency band antenna panel and the horizontal angle of the second frequency band antenna panel is greater than a second threshold, and the difference between the vertical angle of the first frequency band antenna panel and the vertical angle of the second frequency band antenna panel is greater than a third threshold.

[0011] In a possible implementation, beam management and / or channel measurement of the second frequency band is performed based on information of the first frequency band antenna panel and information of the second frequency band antenna panel, including: beam management and / or channel measurement of the second frequency band is performed based on the difference between the position of the first frequency band antenna panel and the position of the second frequency band antenna panel, and the difference between the direction of the first frequency band antenna panel and the direction of the second frequency band antenna panel.

[0012] It can be seen that in the above implementation, the network device can perform beam management and / or channel measurement of the second frequency band based on the difference between the position of the first frequency band antenna panel and the position of the second frequency band antenna panel, and the difference between the direction of the first frequency band antenna panel and the direction of the second frequency band antenna panel. This avoids the problem of low accuracy caused by the network device directly using the channel information of the first frequency band to perform beam management and / or channel measurement of the second frequency band, which ensures the accuracy of beam management and / or channel measurement of the second frequency band. Furthermore, because the accuracy of beam management and / or channel measurement of the second frequency band is improved, the problem of large delay caused by scanning high-frequency beams can also be reduced, thereby improving the efficiency of beam management and / or channel measurement.

[0013] In a possible implementation, beam management of the second frequency band is performed based on the difference between the position of the antenna panel of the first frequency band and the position of the antenna panel of the second frequency band, and the difference between the direction of the antenna panel of the first frequency band and the direction of the antenna panel of the second frequency band, including: estimating channel information of the second frequency band based on the difference between the position of the antenna panel of the first frequency band and the position of the antenna panel of the second frequency band, the difference between the direction of the antenna panel of the first frequency band and the direction of the antenna panel of the second frequency band, and channel information of the first frequency band; and performing beam management of the second frequency band based on the channel information of the second frequency band.

[0014] It can be seen that in the above implementation, the network device can estimate the channel information of the second frequency band based on the difference between the position of the first frequency band antenna panel and the position of the second frequency band antenna panel, the difference between the direction of the first frequency band antenna panel and the direction of the second frequency band antenna panel, and the channel information of the first frequency band, which makes the estimated channel information of the second frequency band more in line with the actual situation, that is, improves the accuracy of the channel information of the second frequency band. Furthermore, when the network device performs beam management of the second frequency band based on the channel information, the accuracy of the beam management of the second frequency band can also be guaranteed.

[0015] In a possible implementation, the method further includes: sending second information to the terminal, where the second information is used to request the first information.

[0016] In a second aspect, a multi-band communication method is provided, which can be executed by a terminal, or by a module (such as a processor, a chip, or a chip system, etc.) applied to the terminal, or by a logical node, a logical module, or software that can implement all or part of the terminal functions. In the multi-band communication method, a first information can be sent to a network device, the first information indicating information of a first-band antenna panel and a second-band antenna panel of the terminal, and the first-band antenna panel and the second-band antenna panel are not co-located. Optionally, the first information is used to perform beam management and / or channel measurement of the second frequency band.

[0017] In a possible embodiment, the information of the antenna panel includes at least one of the following: the position of the antenna panel, the direction of the antenna panel, the number of antenna units included in the antenna panel, and the frequency band of the antenna panel; wherein the direction of the antenna panel is represented by a horizontal angle and / or a vertical angle; and the antenna panel is a first frequency band antenna panel or a second frequency band antenna panel.

[0018] In a possible implementation, the method further includes: receiving second information from the network device, where the second information is used to request the first information.

[0019] According to a third aspect, a communication device is provided, comprising a unit or module for implementing the method as described in any one of the first aspect or the second aspect.

[0020] In a fourth aspect, a communication device is provided, comprising a processor and an interface circuit, wherein the interface circuit is used to receive signals from other communication devices and transmit them to the processor or send signals from the processor to other communication devices, and the processor is used to implement a method as described in any one of the first aspect or the second aspect through a logic circuit or by executing code instructions.

[0021] In a fifth aspect, a communication system is provided, the communication system comprising a network device and a terminal; the network device is used to execute the method as described in any one of the first aspects; the terminal is used to execute the method as described in any one of the second aspects.

[0022] In a sixth aspect, a computer-readable storage medium is provided, in which a computer program or instruction is stored. When the computer program or instruction is executed by a communication device, a method as described in any one of the first aspect or the second aspect is implemented.

[0023] In a seventh aspect, a computer program product is provided, the computer program product comprising: a computer program code, and when the computer program code is executed by a computer, the computer executes the method as described in any one of the first aspect or the second aspect.

[0024] In an eighth aspect, a chip is provided, comprising at least one processor and an interface, wherein the processor is used to read and execute instructions stored in a memory, and when the instructions are executed, the chip executes the method described in any one of the first aspect or the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the architecture of a mobile communication system used in an embodiment of the present application;

[0026] Figure 2 A schematic diagram of a coordinate system used in embodiments of the present application;

[0027] Figure 3 A schematic diagram of the deployment of a low-frequency antenna panel and a high-frequency antenna panel on a terminal provided in an embodiment of the present application;

[0028] Figure 4 A flowchart of a multi-band communication method provided in an embodiment of the present application;

[0029] Figure 5 A schematic diagram of the structure of a possible communication device provided in an embodiment of the present application;

[0030] Figure 6 A schematic diagram of the structure of another possible communication device provided for an embodiment of the present application. DETAILED DESCRIPTION

[0031] In order to better understand the embodiments of the present application, Figure 1 The system architecture shown is explained as an example. Figure 1 In the context of wireless networks, network equipment can be referred to as radio access network (RAN). Figure 1 As shown, the communication system includes RAN 100 and core network 200. Optionally, the communication system 1000 may also include Internet 300. RAN 100 includes at least one RAN node (such as Figure 1 110a and 110b in the figure, collectively referred to as 110), and may also include at least one terminal (such as Figure 1 RAN 100 may also include other RAN nodes, such as wireless relay equipment and / or wireless backhaul equipment ( Figure 1 (not shown in the figure). The terminal 120 is connected to the RAN node 110 by wireless means, and the RAN node 110 is connected to the core network 200 by wireless or wired means. The core network device in the core network 200 and the RAN node 110 in the RAN 100 may be independent and different physical devices, or may be the same physical device that integrates the logical functions of the core network device and the logical functions of the RAN node. Terminals and terminals and RAN nodes and RAN nodes may be connected to each other by wired or wireless means.

[0032] RAN100 may be an evolved universal terrestrial radio access (E-UTRA) system, a new radio (NR) system, and a future wireless access system defined in the 3rd Generation Partnership Project (3GPP), or a WiFi system, or an enhanced mobile broadband (eMBB), ultra-reliable low latency communication (URLLC), and massive machine type communication (mMTC), a long range Internet of Things (LoRa) system, or a vehicle networking system. RAN100 may also include two or more of the above-mentioned different wireless access systems. RAN100 may also be an open RAN (O-RAN).

[0033] RAN nodes, also known as radio access network equipment, RAN entities or access nodes, are used to help terminals access the communication system wirelessly. In one application scenario, a RAN node can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation NodeB (gNB) in a 5G mobile communication system, a next generation NodeB in a 6G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system. A RAN node can be a macro base station (such as Figure 1 110a), or a micro base station or an indoor station (such as Figure 1 110b) in the figure, it can also be a relay node or a donor node.

[0034] In another application scenario, the cooperation of multiple RAN nodes can be used to help the terminal achieve wireless access, and different RAN nodes respectively implement part of the functions of the base station. For example, the RAN node can be a centralized unit (CU), a distributed unit (DU) or a radio unit (RU). The CU here completes the functions of the radio resource control protocol and the packet data convergence protocol (PDCP) of the base station, and can also complete the function of the service data adaptation protocol (SDAP); the DU completes the functions of the radio link control layer and the medium access control (MAC) layer of the base station, and can also complete the functions of part of the physical layer or all of the physical layer. For the specific description of the above-mentioned various protocol layers, please refer to the relevant technical specifications of 3GPP. RU can be used to implement the transceiver function of radio frequency signals. CU and DU can be two independent RAN nodes, or they can be integrated in the same RAN node, such as integrated in a baseband unit (BBU). RU can be included in a radio frequency device, such as a remote radio unit (RRU) or an active antenna unit (AAU). The CU can be further divided into two types of RAN nodes: CU-control plane and CU-user plane.

[0035] In different systems, RAN nodes may have different names. For example, in an O-RAN system, CU may be called an open CU (open CU, O-CU), DU may be called an open DU (open DU, O-DU), and RU may be called an open RU (open RU, O-RU). The RAN node in the embodiment of the present application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module. For example, the RAN node may be a server loaded with a corresponding software module. The embodiments of the present application do not limit the specific technology and specific device form adopted by the RAN node. For the convenience of description, the following description takes a base station as an example of a RAN node.

[0036] A terminal is a device with wireless transceiver function, which can send signals to a base station or receive signals from a base station. A terminal can also be called a terminal device, user equipment (UE), a mobile station, a mobile terminal, etc. The terminal can be widely used in various scenarios, for example, device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IOT), virtual reality, augmented reality, industrial control, automatic driving, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, an airplane, a ship, a robot, a mechanical arm, a smart home device, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal.

[0037] Base stations and terminals can be fixed or movable. Base stations and terminals can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on airplanes, balloons, and artificial satellites. The embodiments of this application do not limit the application scenarios of base stations and terminals.

[0038] The roles of the base station and the terminal can be relative, for example, Figure 1 The helicopter or drone 120i in the figure can be configured as a mobile base station. For the terminal 120j that accesses the wireless access network 100 through 120i, the terminal 120i is a base station; but for the base station 110a, 120i is a terminal, that is, 110a and 120i communicate through the wireless air interface protocol. Of course, 110a and 120i can also communicate through the interface protocol between base stations. In this case, relative to 110a, 120i is also a base station. Therefore, base stations and terminals can be collectively referred to as communication devices. Figure 1 110a and 110b in the figure may be referred to as communication devices having base station functions. Figure 1 120a-120j in the figure can be called communication devices with terminal functions.

[0039] Base stations and terminals, base stations and base stations, and terminals and terminals can communicate through authorized spectrum, unauthorized spectrum, or both; they can communicate through spectrum below 6 gigahertz (GHz), spectrum above 6 GHz, or spectrum below 6 GHz and spectrum above 6 GHz. The embodiments of the present application do not limit the spectrum resources used for wireless communication.

[0040] In the embodiments of the present application, the functions of the base station may also be performed by a module (such as a chip) in the base station, or by a control subsystem including the base station function. The control subsystem including the base station function here may be a control center in the above-mentioned application scenarios such as smart grid, industrial control, smart transportation, and smart city. The functions of the terminal may also be performed by a module (such as a chip or a modem) in the terminal, or by a device including the terminal function.

[0041] In order to facilitate the understanding of the content of this solution, some of the terms involved in the embodiments of the present application are explained below to facilitate understanding by those skilled in the art. This part is only for ease of understanding and cannot be regarded as a specific limitation of the present application.

[0042] 1. Antenna panel

[0043] The antenna panel may be referred to as a panel for short. An antenna panel may include one or more antenna units, and the antenna unit may be referred to as an antenna for short.

[0044] The antenna panel can generate one or more beams. A beam is a communication resource. A beam can also be embodied in a protocol as a spatial filter or a spatial parameter.

[0045] In the present application, the antenna panel can be divided into a first frequency band antenna panel and a second frequency band antenna panel. For example, the first frequency band antenna panel can generate a beam of FR1, and the second frequency band antenna panel can generate a beam of FR2. For another example, the frequency points supported by the first frequency band antenna panel belong to FR1, and the frequency points supported by the second frequency band antenna panel belong to FR2. The definition of the frequency points refers to 3GPP standard 38.101, such as n78 represents 3.5GHz, and n261 represents 28GHz. Optionally, the same antenna panel can support one or more frequency points, and the multiple frequency points can belong to the same frequency band or different frequency bands. For example, the multiple frequency points supported by the first frequency band antenna panel can belong to the same frequency band or different frequency bands within FR1. For example, some of the multiple frequency points supported by the first frequency band antenna panel belong to the C band, and another part of the multiple frequency points belong to the X band. The C band refers to electromagnetic waves with frequencies between 4GHz and 8GHz, and the X band refers to electromagnetic waves with frequencies between 8GHz and 12GHz. For another example, the multiple frequency points supported by the second frequency band antenna panel may belong to the same frequency band or different frequency bands within FR2. The frequency band may include an interval determined by a maximum frequency and a minimum frequency, and the frequency band may also include boundary points or not, such as a maximum frequency and / or a minimum frequency, which are not limited here.

[0046] It should be noted that the first frequency band mentioned in this application may be FR1 or a frequency band within FR1 (such as C band or X band, etc.), which may also be called low frequency; the second frequency band may be FR2 or a frequency band within FR2, which may also be called high frequency. In a possible implementation, the first frequency band antenna panel and the second frequency band antenna panel may be respectively called a low frequency antenna panel and a high frequency antenna panel, and this application does not limit their names.

[0047] The antenna panel (such as one or more of the first frequency band antenna panel, the second frequency band antenna panel, etc.) can be deployed on the terminal or the network device. For example, the number of the first frequency band antenna panels deployed on the terminal or the network device can be one or more. For another example, the number of the second frequency band antenna panels deployed on the terminal or the network device can be one or more.

[0048] Optionally, the positions of different antenna panels deployed on a terminal or network device may be the same or different. This application takes the antenna panel deployed on a terminal as an example to illustrate the position of the antenna panel. Optionally, in order to define the position of the antenna panel, a configuration such as Figure 2 A coordinate system such as the Cartesian coordinate system. Figure 2In the coordinate system, the origin O can be the center point of the terminal, any vertex of the terminal, or the center point of any antenna panel on the terminal, etc., which is not limited here. Any three mutually perpendicular directions can be used as the X-axis, Y-axis, and Z-axis of the coordinate system respectively. The position of an antenna panel can be represented by a unique set of (x, y, z) coordinates. Optionally, the position of the center point of the antenna panel can be used as the position of the antenna panel, the position of any antenna unit of the antenna panel can be used as the position of the antenna panel, or the position of the first antenna unit in the antenna panel can be used as the position of the antenna panel, etc., which is not limited here.

[0049] Optionally, the directions of different antenna panels deployed on a terminal or network device may be the same or different. The direction of the antenna panel may be represented by a horizontal angle and / or a vertical angle. Figure 2 In the vector is the direction of the antenna panel, φ is the horizontal angle, and θ is the vertical angle. When the direction of the antenna panel is expressed by the horizontal angle, the directions of different antenna panels are the same, which means that the horizontal angles of different antenna panels are the same; conversely, the directions of different antenna panels are different, which means that the horizontal angles of different antenna panels are different. When the direction of the antenna panel is expressed by the vertical angle, the directions of different antenna panels are the same, which means that the vertical angles of different antenna panels are the same; conversely, the directions of different antenna panels are different, which means that the vertical angles of different antenna panels are different. When the direction of the antenna panel is expressed by the horizontal angle and the vertical angle, the directions of different antenna panels are the same, which means that the horizontal angles and vertical angles of different antenna panels are the same; conversely, the directions of different antenna panels are different, which means that any one or more of the horizontal angles and vertical angles of different antenna panels are different.

[0050] Optionally, different antenna panels deployed on a terminal or network device may include the same or different numbers of antenna units. Generally speaking, the number of antenna units included in an antenna panel deployed on a terminal may be 1, 2, 4 or 8, which is not limited here.

[0051] Optionally, the frequency bands of different antenna panels deployed on a terminal or network device may be the same or different. For example, the frequency bands of different first-band antenna panels deployed on a terminal or network device may be the same or different. For another example, the frequency bands of different second-band antenna panels deployed on a terminal or network device may be the same or different. For another example, the frequency band of the first-band antenna panel deployed on a terminal or network device is different from the frequency band of the second-band antenna panel.

[0052] Optionally, different antenna panels may be deployed on the same antenna surface or not on the same antenna surface on the terminal or network device. The following is an example of a first frequency band antenna panel and a second frequency band antenna panel deployed on a terminal. In a possible implementation, when a preset condition is met, the first frequency band antenna panel and the second frequency band antenna panel are not deployed on the same antenna surface.

[0053] The preset condition may include at least one of the following: the difference between the position of the first frequency band antenna panel and the position of the second frequency band antenna panel is greater than a first threshold, the difference between the horizontal angle of the first frequency band antenna panel and the horizontal angle of the second frequency band antenna panel is greater than a second threshold, and the difference between the vertical angle of the first frequency band antenna panel and the vertical angle of the second frequency band antenna panel is greater than a third threshold. Conversely, when the directions of the first frequency band antenna panel and the second frequency band antenna panel are both represented by horizontal angles, the difference between the position of the first frequency band antenna panel and the position of the second frequency band antenna panel is less than the first threshold, and the difference between the horizontal angle of the first frequency band antenna panel and the horizontal angle of the second frequency band antenna panel is less than the second threshold, the first frequency band antenna panel and the second frequency band antenna panel are deployed on the same sky. When the directions of the first frequency band antenna panel and the second frequency band antenna panel are both represented by vertical angles, the difference between the position of the first frequency band antenna panel and the position of the second frequency band antenna panel is less than the first threshold, and the difference between the vertical angle of the first frequency band antenna panel and the vertical angle of the second frequency band antenna panel is less than the third threshold, the first frequency band antenna panel and the second frequency band antenna panel are deployed on the same sky. When the directions of the first frequency band antenna panel and the second frequency band antenna panel are both represented by horizontal angles and vertical angles, the difference between the position of the first frequency band antenna panel and the position of the second frequency band antenna panel is less than a first threshold, the difference between the horizontal angle of the first frequency band antenna panel and the horizontal angle of the second frequency band antenna panel is less than a second threshold, and the difference between the vertical angle of the first frequency band antenna panel and the vertical angle of the second frequency band antenna panel is less than a third threshold, the first frequency band antenna panel and the second frequency band antenna panel are co-planar deployment. For example, Figure 3 In 3-1, the difference between the position of the low-frequency antenna panel and the position of the high-frequency antenna panel is greater than the first threshold, so the low-frequency antenna panel and the high-frequency antenna panel are not co-planar. Figure 3In 3-2, the difference between the position of any one of the two low-frequency antenna panels (one low-frequency antenna panel is deployed on the left and right sides of the terminal respectively) and the position of the high-frequency antenna panel is greater than the first threshold, the difference between the horizontal angle of any one of the two low-frequency antenna panels and the horizontal angle of the high-frequency antenna panel is greater than the second threshold, and the difference between the vertical angle of any one of the two low-frequency antenna panels and the vertical angle of the high-frequency antenna panel is greater than the third threshold. Therefore, the two low-frequency antenna panels and the high-frequency antenna panel are not deployed on the same antenna surface. For another example, Figure 3 In 3-3, the difference between the position of the low-frequency antenna panel and the position of the high-frequency antenna panel is less than the first threshold, the difference between the horizontal angle of the low-frequency antenna panel and the horizontal angle of the high-frequency antenna panel is less than the second threshold, and the difference between the vertical angle of the low-frequency antenna panel and the vertical angle of the high-frequency antenna panel is less than the third threshold. Therefore, the low-frequency antenna panel and the high-frequency antenna panel are deployed on the same sky surface.

[0054] It should be pointed out that "equal" (such as the difference between the position of the first frequency band antenna panel and the position of the second frequency band antenna panel is equal to the first threshold, the difference between the horizontal angle of the first frequency band antenna panel and the horizontal angle of the second frequency band antenna panel is equal to the second threshold, and the difference between the vertical angle of the first frequency band antenna panel and the vertical angle of the second frequency band antenna panel is equal to at least one of the third threshold) can be used as a condition that the first frequency band antenna panel and the second frequency band antenna panel are not deployed on the same sky surface, or as a condition that the first frequency band antenna panel and the second frequency band antenna panel are deployed on the same sky surface, and is not limited here.

[0055] Optionally, the difference between the position of the first frequency band antenna panel and the position of the second frequency band antenna panel refers to the absolute value of the difference. The difference between the horizontal angle of the first frequency band antenna panel and the horizontal angle of the second frequency band antenna panel refers to the absolute value of the difference. The difference between the vertical angle of the first frequency band antenna panel and the vertical angle of the second frequency band antenna panel refers to the absolute value of the difference.

[0056] Among them, the first threshold involved in this application may be a predefined or preconfigured value greater than or equal to 0, the second threshold involved in this application may be a predefined or preconfigured angle value greater than or equal to 0°, and the third threshold involved in this application may be a predefined or preconfigured angle value greater than or equal to 0°. It should be pointed out that the predefined mentioned in this application refers to the predefined by the protocol, and the preconfigured mentioned in this application refers to the information recorded in the hardware and / or software in the network device.

[0057] 2. Channel information

[0058] In the present application, channel information may be used to characterize channel characteristics. For example, channel information of a first frequency band may be used to characterize channel characteristics of the first frequency band. For another example, channel information of a second frequency band may be used to characterize channel characteristics of the second frequency band.

[0059] The channel information may include at least one of the following: a channel matrix H (the channel matrix may also be called a channel covariance matrix), an equivalent channel matrix, a precoding matrix W (the precoding matrix W may be derived from the channel matrix H), a right singular vector V of the channel matrix H, a square matrix H T The eigenvector of H (the conjugate transpose of the channel matrix H TThe CSI may be used to describe information related to channel quality. For example, the CSI describes the propagation process of a wireless signal between a transmitter and a receiver, including the effects of distance, scattering, fading, etc. on the signal. Exemplarily, the CSI may include at least one of the following: precoding matrix indicator (PMI), channel quality indicator (CQI), channel state information reference signal resource indicator (CSI-RS resource indicator, CRI), layer indicator (LI), synchronization signal block resource indicator index (SS / PBCH block resource indicator, SSBRI), rank indicator index (RI), layer indicator index (LI), layer 1 reference signal received power (Layer 1reference signal received power, L1-RSRP), layer 1 signal-to-noise and interference ratio (Layer 1signal-to-noise and interference ratio, L1-SINR), received arrival angle (angle of arrival, AOA), arrival angle spread (angle of arrival, AAS), transmission departure angle (angle of departure, AOD), departure angle spread (angle of departure spread, ADS), spatial correlation (spatial correlation), power angular spectrum of incident angle (power angular spectrum, PAS), etc. The meanings of the above terms may refer to the provisions of the protocols or standards of communication technologies, for example, and are not limited here.

[0060] Generally speaking, the terminal can obtain channel information by performing channel measurement on the downlink reference signal. Measurement can also be described as evaluation, detection or estimation, etc. Among them, the downlink reference signal may include a channel state information reference signal (CSI-RS), a synchronization signal block (SSB) or a demodulation reference signal (DMRS), etc. Similarly, the network device can obtain channel information by performing channel measurement on the uplink reference signal. Among them, the uplink reference signal may include a sounding reference signal (SRS), etc. The meaning of the above terms can, for example, refer to the provisions of the protocol or standard of the communication technology, and is not limited here. Among them, when the terminal is located in the first cell covered by the network device (the first cell operates in the first frequency band), the channel information measured by the terminal can be referred to as the channel information of the first frequency band, and the channel information measured by the network device can also be referred to as the channel information of the first frequency band. Similarly, when the terminal is located in the second cell covered by the network device (the second cell operates in the second frequency band), the channel information measured by the terminal can be referred to as the channel information of the second frequency band, and the channel information measured by the network device can also be referred to as the channel information of the second frequency band.

[0061] It should be noted that the terminal may be located in an overlapping area of ​​the first cell and the second cell. The overlapping area of ​​the first cell and the second cell is an area where the coverage of the first cell and the coverage of the second cell overlap. The coverage of the first cell and the coverage of the second cell may partially overlap or completely overlap, which is not limited here.

[0062] When the terminal is located in the overlapping area of ​​the first cell and the second cell, the terminal can perform channel measurement for any one or more of the first cell and the second cell, and the terminal can also report the result of the channel measurement to the network device. Similarly, the network device can also perform channel measurement for any one or more of the first cell and the second cell, and the network device also indicates the result of the channel measurement to the terminal. Exemplarily, the terminal performs channel measurement for the first cell, obtains channel information of the first frequency band, and sends the channel information of the first frequency band to the network device. The network device performs channel measurement for the second cell and obtains channel information of the second frequency band. Another exemplary embodiment, the terminal performs channel measurement for the first cell and the second cell respectively, obtains channel information of the first frequency band and channel information of the second frequency band, and sends the channel information of the first frequency band and the channel information of the second frequency band to the network device. Another exemplary embodiment, the network device performs channel measurement for the first cell and the second cell respectively, obtains channel information of the first frequency band and channel information of the second frequency band, and sends the channel information of the first frequency band and the channel information of the second frequency band to the terminal. The above is only an example, and there are other combinations, which are not listed here one by one.

[0063] 3. Channel correlation between the first frequency band and the second frequency band

[0064] The channel correlation between the first frequency band and the second frequency band may be determined by the terminal or the network device based on the historical channel information of the first frequency band and the historical channel information of the second frequency band. The channel correlation between the first frequency band and the second frequency band may include at least one of the following: the correlation between the PAS of the first frequency band and the PAS of the second frequency band, the correlation between the eigenvector of the first frequency band and the eigenvector of the second frequency band. PAS is a description of the wireless channel from the antenna to the grid, including information such as the number of paths, the path angle, and the path strength. Path strength refers to the power component on the path when a wireless signal of unit power propagates to the receiving end. Path strength characterizes the ratio of the remaining power of the signal on the path after spatial propagation. The eigenvector can be obtained based on the channel matrix, and the eigenvector here can be the maximum eigenvector.

[0065] In the present application, the historical channel information of the first frequency band and the historical channel information of the second frequency band may both be measured by the terminal, and the terminal may send the historical channel information of the first frequency band and the historical channel information of the second frequency band to the network device; or,

[0066] The historical channel information of the first frequency band and the historical channel information of the second frequency band may both be measured by the network device, and the network device may send the historical channel information of the first frequency band and the historical channel information of the second frequency band to the terminal; or,

[0067] The historical channel information of the first frequency band is measured by the terminal, and the historical channel information of the second frequency band is measured by the network device. The terminal may send the historical channel information of the first frequency band to the network device, and the network device may send the historical channel information of the second frequency band to the terminal; or,

[0068] The historical channel information of the first frequency band is measured by the network device, and the historical channel information of the second frequency band is measured by the terminal. The terminal can send the historical channel information of the second frequency band to the network device, and the network device can send the historical channel information of the first frequency band to the terminal.

[0069] 4. Radio resource control (RRC) connection state

[0070] The RRC connection state can also be referred to as the connection state. When the terminal is in the connection state, the terminal has established the RRC context. The parameters required to establish communication between the terminal and the network device have been acquired by both parties. The network device allocates a cell radio network temporary identifier (C-RNTI) to the accessed terminal. At the same time, the terminal also establishes a connection with the core network device, that is, the core network device is in CN_CONNECTED (core network connection state).

[0071] 5. High and low frequency collaborative algorithm

[0072] The high-low frequency cooperative algorithm is used to predict the best beam of the second frequency band and / or estimate the channel information of the second frequency band.

[0073] In the present application, the high and low frequency collaborative algorithms can be divided into artificial intelligence (AI) type high and low frequency collaborative algorithms and non-AI type high and low frequency collaborative algorithms. The AI ​​type high and low frequency collaborative algorithm refers to the use of an AI model to predict the best beam of the second frequency band and / or estimate the channel information of the second frequency band. Conversely, the non-AI type high and low frequency collaborative algorithm refers to not using an AI model to predict the best beam of the second frequency band and / or estimate the channel information of the second frequency band. Among them, the AI ​​model is a type of mathematical algorithm model that uses machine learning ideas to solve practical problems. The AI ​​model can be a neural network (artificial neural networks, ANNs) model, etc.

[0074] The following is a detailed description of the embodiments of the present application. Specifically, the terminal in the following text may be Figure 1 The terminals involved, the network devices mentioned below can be Figure 1It should be noted that the message names between network elements or the names of parameters in the messages in the following embodiments are only examples, and other names may be used in specific implementations, which are not specifically limited in the embodiments of the present application.

[0075] like Figure 4 As shown, a multi-band communication method provided in an embodiment of the present application includes but is not limited to the following steps:

[0076] 401. A terminal sends first information to a network device, where the first information is used to indicate information about a first frequency band antenna panel and information about a second frequency band antenna panel of the terminal.

[0077] Correspondingly, the network device receives the first information from the terminal.

[0078] In a possible implementation manner, the terminal may send the first information to the network device in any of the following ways, specifically:

[0079] 1. When the channel correlation between the first frequency band and the second frequency band is less than the first correlation threshold, the terminal sends the first information to the network device. Among them, "equal" (such as the channel correlation between the first frequency band and the second frequency band is equal to the first correlation threshold) can be used as a condition for the terminal to send the first information to the network device, and can also be used as a condition for the terminal not to send the first information. Optionally, the first correlation threshold can be a value greater than or equal to 0 predefined by the protocol, or the first correlation threshold can be a value greater than or equal to 0 determined by the terminal, or the first correlation threshold can be indicated to the terminal by the network device, which is not limited here.

[0080] 2. The terminal sends the first information to the network device based on the second information from the network device (the second information is used to request the first information). Furthermore, the terminal may send the first information to the network device when the second information is received and the channel correlation between the first frequency band and the second frequency band is less than the first correlation threshold. Optionally, the second information may be indicated to the terminal by the network device when the channel correlation between the first frequency band and the second frequency band is less than the second correlation threshold. The second correlation threshold may be a value greater than or equal to 0 predefined by the protocol. Optionally, the first correlation threshold and the second correlation threshold may be the same or different. Optionally, the second information may be carried in an RRC message (such as a terminal capability query (UEcapability enquiry) message defined by the protocol), a media access control layer control element (MAC CE) or downlink control information (DCI). Optionally, the DCI may be carried on a physical downlink control channel (PDCCH).

[0081] Optionally, the first information may be carried in an RRC message (such as a UE capability information message) or uplink control information (UCI). The uplink RRC message may generally be sent to a network device via a PUSCH. Optionally, the UCI may be carried on a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH).

[0082] It should be pointed out that in the present application, PUCCH and PUSCH are only used as an example of an uplink control channel and an uplink data channel, respectively, and PDCCH is only used as an example of a downlink control channel, respectively. In different systems and different scenarios, data channels and control channels may have different names, and the embodiments of the present application do not limit this.

[0083] Optionally, the first information is used to indicate the information of the first frequency band antenna panel and the information of the second frequency band antenna panel, which can be understood as: the first information includes the information of the first frequency band antenna panel and the information of the second frequency band antenna panel. The information of the first frequency band antenna panel may include at least one of the following: the position of the first frequency band antenna panel, the direction of the first frequency band antenna panel, the number of antenna units included in the first frequency band antenna panel, and the frequency band of the first frequency band antenna panel; the direction of the first frequency band antenna panel is represented by a horizontal angle and / or a vertical angle. The information of the second frequency band antenna panel may include at least one of the following: the position of the second frequency band antenna panel, the direction of the second frequency band antenna panel, the number of antenna units included in the second frequency band antenna panel, and the frequency band of the second frequency band antenna panel; the direction of the second frequency band antenna panel is represented by a horizontal angle and / or a vertical angle.

[0084] After step 401, the method can be implemented in any of the following ways: Way 1 includes step 402. Way 2 includes step 403.

[0085] Method 1:

[0086] 402. The network device performs beam management and / or channel measurement of the second frequency band according to information of the antenna panel of the first frequency band and information of the antenna panel of the second frequency band.

[0087] In the present application, beam management of the second frequency band can be understood as predicting the best beam of the second frequency band. Channel measurement of the second frequency band can be understood as estimating channel information of the second frequency band, where the channel information of the second frequency band can refer to the channel information of the second frequency band at the current moment.

[0088] Optionally, before step 402, the method may further include: the network device determines that the first frequency band antenna panel and the second frequency band antenna panel are not co-located based on information about the first frequency band antenna panel and information about the second frequency band antenna panel. For example, when a preset condition is met, the network device determines that the first frequency band antenna panel and the second frequency band antenna panel are not co-located. It can be seen that in the above implementation, the network device can be informed of the difference in deployment between the first frequency band antenna panel and the second frequency band antenna panel, and thus it is clear that the channel information of the first frequency band cannot be directly used to perform beam management and / or channel measurement of the second frequency band, thereby ensuring the accuracy of beam management and / or channel measurement of the second frequency band.

[0089] Optionally, step 402 may include: the network device performs beam management and / or channel measurement of the second frequency band according to the difference between the position of the first frequency band antenna panel and the position of the second frequency band antenna panel, and the difference between the direction of the first frequency band antenna panel and the direction of the second frequency band antenna panel. In a possible implementation, the network device may also perform beam management and / or channel measurement of the second frequency band in combination with the number of antenna units included in the first frequency band antenna panel and the number of antenna units included in the second frequency band antenna panel. For example, the network device performs beam management and / or channel measurement of the second frequency band according to the number of antenna units included in the first frequency band antenna panel, the number of antenna units included in the second frequency band antenna panel, the difference between the position of the first frequency band antenna panel and the position of the second frequency band antenna panel, and the difference between the direction of the first frequency band antenna panel and the direction of the second frequency band antenna panel. This avoids the problem of low accuracy caused by the network device directly using the channel information of the first frequency band to perform beam management and / or channel measurement of the second frequency band, which ensures the accuracy of beam management and / or channel measurement of the second frequency band. Furthermore, because the accuracy of beam management and / or channel measurement in the second frequency band is improved, the problem of long delay caused by scanning high-frequency beams can also be reduced, thereby improving the efficiency of beam management and / or channel measurement.

[0090] Optionally, the network device may perform beam management of the second frequency band in any of the following ways, specifically:

[0091] 1. The network device estimates the channel information of the second frequency band according to the number of antenna units included in the first frequency band antenna panel, the number of antenna units included in the second frequency band antenna panel, the difference between the position of the first frequency band antenna panel and the position of the second frequency band antenna panel, the difference between the direction of the first frequency band antenna panel and the direction of the second frequency band antenna panel, and the channel information of the first frequency band; the network device performs beam management of the second frequency band according to the channel information of the second frequency band (i.e., predicts the best beam of the second frequency band). The channel information of the first frequency band may refer to the most recently measured channel information of the first frequency band, or may also be referred to as the channel information of the first frequency band obtained by the most recent measurement, and the channel information of the second frequency band may refer to the channel information of the second frequency band at the current moment. In a possible implementation, the entire process of "estimation of the channel information of the second frequency band to beam management of the second frequency band according to the channel information of the second frequency band" can be achieved through a high-low frequency collaborative algorithm. For example, the high- and low-frequency coordination algorithm is an AI-type high- and low-frequency coordination algorithm, and the channel information of the first frequency band is the latest measured AOA or PAS of the first frequency band. The network device can input the number of antenna units included in the first frequency band antenna panel, the number of antenna units included in the second frequency band antenna panel, the difference between the position of the first frequency band antenna panel and the position of the second frequency band antenna panel, the difference between the direction of the first frequency band antenna panel and the direction of the second frequency band antenna panel, and the channel information of the first frequency band (such as the latest measured AOA or PAS of the first frequency band) into AI model #1 to perform beam management of the second frequency band (i.e., predict the optimal beam of the second frequency band).

[0092] 2. The network device estimates the first channel information of the second frequency band based on the channel information of the first frequency band; the network device performs beam management of the second frequency band based on the first channel information, the number of antenna units included in the antenna panel of the first frequency band, the number of antenna units included in the antenna panel of the second frequency band, the difference between the position of the antenna panel of the first frequency band and the position of the antenna panel of the second frequency band, and the difference between the direction of the antenna panel of the first frequency band and the direction of the antenna panel of the second frequency band. The channel information of the first frequency band may refer to the most recently measured channel information of the first frequency band, and the channel information of the second frequency band may refer to the channel information of the second frequency band at the current moment. Optionally, the network device performs beam management of the second frequency band according to the first channel information, the number of antenna units included in the first frequency band antenna panel, the number of antenna units included in the second frequency band antenna panel, the difference between the position of the first frequency band antenna panel and the position of the second frequency band antenna panel, and the difference between the direction of the first frequency band antenna panel and the direction of the second frequency band antenna panel, which may include: the network device adjusts the first channel information according to the number of antenna units included in the first frequency band antenna panel, the number of antenna units included in the second frequency band antenna panel, the difference between the position of the first frequency band antenna panel and the position of the second frequency band antenna panel, and the difference between the direction of the first frequency band antenna panel and the direction of the second frequency band antenna panel to obtain the second channel information; and uses the second channel information to perform beam management of the second frequency band. In a possible implementation, the entire process of "estimation of the channel information of the second frequency band to beam management of the second frequency band according to the channel information of the second frequency band" can be achieved through a high-low frequency collaborative algorithm. For example, the high- and low-frequency coordination algorithm is an AI-type high- and low-frequency band coordination algorithm, and the channel information of the first frequency band is the latest measured AOA or PAS of the first frequency band. The network device can input the number of antenna units included in the first frequency band antenna panel, the number of antenna units included in the second frequency band antenna panel, the difference between the position of the first frequency band antenna panel and the position of the second frequency band antenna panel, the difference between the direction of the first frequency band antenna panel and the direction of the second frequency band antenna panel, and the channel information of the first frequency band (such as the latest measured AOA or PAS of the first frequency band) into AI model #2 to perform beam management of the second frequency band (i.e., predict the optimal beam of the second frequency band).

[0093] Optionally, the network device can perform channel measurement of the second frequency band (i.e., estimate the channel information of the second frequency band at the current moment) in the following manner, such as, the network device estimates the first channel information of the second frequency band based on the channel information of the first frequency band (the channel information of the first frequency band may refer to the channel information of the first frequency band measured most recently); the network device adjusts the first channel information based on the number of antenna units included in the first frequency band antenna panel, the number of antenna units included in the second frequency band antenna panel, the difference between the position of the first frequency band antenna panel and the position of the second frequency band antenna panel, and the difference between the direction of the first frequency band antenna panel and the direction of the second frequency band antenna panel to obtain the second channel information, and the second channel information is the channel information of the second frequency band at the current moment. In a possible implementation, the entire process of "estimating the first channel information of the second frequency band to obtaining the second channel information" can be implemented by a high-low frequency collaborative algorithm. For example, the high- and low-frequency collaborative algorithm is an AI-type high- and low-frequency collaborative algorithm, and the channel information of the first frequency band is the latest measured channel matrix of the first frequency band. The network device can input the number of antenna units included in the first frequency band antenna panel, the number of antenna units included in the second frequency band antenna panel, the difference between the position of the first frequency band antenna panel and the position of the second frequency band antenna panel, the difference between the direction of the first frequency band antenna panel and the direction of the second frequency band antenna panel, and the channel information of the first frequency band (such as the latest measured channel matrix of the first frequency band) into AI model #3 to estimate the channel information of the second frequency band at the current moment (that is, the channel matrix of the second frequency band at the current moment).

[0094] Method 2:

[0095] 403. The network device does not enable the high and low frequency coordination algorithm.

[0096] Optionally, step 403 may be understood as: the network device does not use the channel information of the first frequency band to perform beam management and / or channel measurement of the second frequency band.

[0097] In a possible implementation, when the network device does not enable the high-low frequency coordination algorithm, step 401 can be replaced by: the terminal sends an indication message to the network device, the indication message is used to indicate that the first frequency band antenna panel and the second frequency band antenna panel on the terminal are not co-located. Optionally, the indication message can be carried in an RRC message (such as a terminal capability information (UE capability information) message) or uplink control information (uplink control information, UCI).

[0098] It can be seen that in the above implementation, the accuracy of the beam management and / or channel measurement of the second frequency band can be guaranteed. Furthermore, because the accuracy of the beam management and / or channel measurement of the second frequency band is improved, the problem of large delay caused by scanning high-frequency beams can also be reduced, thereby improving the efficiency of beam management and / or channel measurement.

[0099] It is understandable that in order to implement the functions in the above embodiments, the network device and the terminal include hardware structures and / or software modules corresponding to the execution of each function. It should be easily appreciated by those skilled in the art that, in combination with the units and method steps of each example described in the embodiments disclosed in this application, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application scenario and design constraints of the technical solution.

[0100] Figure 5 and Figure 6 The following is a schematic diagram of the structure of possible communication devices provided in the embodiments of the present application. These communication devices can be used to implement the functions of the terminal or network device in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments. In the embodiments of the present application, the communication device can be as follows: Figure 1 The terminal 120 shown may also be Figure 1 The network device 110 shown may also be a module (such as a chip) applied to a terminal or a network device.

[0101] like Figure 5 As shown, the communication device 500 includes a processing unit 510 and a transceiver unit 520. The communication device 500 is used to implement the above Figure 4 The functions of the terminal or network device in the method embodiment shown in FIG.

[0102] When the communication device 500 is used to implement Figure 4 In the method embodiment shown, the function of the terminal is: the transceiver unit 520 is used for the network device to send the first information, the first information indicates the information of the first frequency band antenna panel and the second frequency band antenna panel of the terminal, and the first frequency band antenna panel and the second frequency band antenna panel are not deployed on the same antenna surface.

[0103] In a possible implementation manner, the transceiver unit 520 is further configured to receive second information from the network device, where the second information is used to request the first information.

[0104] When the communication device 500 is used to implement Figure 4Among the functions of the network device in the method embodiment shown, the transceiver unit 520 is used to receive first information from the terminal, where the first information is used to indicate information of the first frequency band antenna panel and information of the second frequency band antenna panel of the terminal; the processing unit 510 is used to perform beam management and / or channel measurement of the second frequency band according to the information of the first frequency band antenna panel and the information of the second frequency band antenna panel.

[0105] In a possible implementation, the processing unit 510 is further configured to determine, based on information about the first frequency band antenna panel and information about the second frequency band antenna panel, that the first frequency band antenna panel and the second frequency band antenna panel are not co-planarly deployed.

[0106] In a possible implementation, when it is determined that the first frequency band antenna panel and the second frequency band antenna panel are not deployed on the same sky surface based on information of the first frequency band antenna panel and information of the second frequency band antenna panel, the processing unit 510 is used to determine that the first frequency band antenna panel and the second frequency band antenna panel are not deployed on the same sky surface when a preset condition is met; wherein the preset condition includes at least one of the following: the difference between the position of the first frequency band antenna panel and the position of the second frequency band antenna panel is greater than a first threshold, the difference between the horizontal angle of the first frequency band antenna panel and the horizontal angle of the second frequency band antenna panel is greater than a second threshold, and the difference between the vertical angle of the first frequency band antenna panel and the vertical angle of the second frequency band antenna panel is greater than a third threshold.

[0107] In a possible embodiment, when beam management and / or channel measurement of the second frequency band are performed based on information of the first frequency band antenna panel and information of the second frequency band antenna panel, the processing unit 510 is used to perform beam management and / or channel measurement of the second frequency band based on the difference between the position of the first frequency band antenna panel and the position of the second frequency band antenna panel, and the difference between the direction of the first frequency band antenna panel and the direction of the second frequency band antenna panel.

[0108] In a possible implementation, when beam management of the second frequency band is performed based on the difference between the position of the antenna panel of the first frequency band and the position of the antenna panel of the second frequency band, and the difference between the direction of the antenna panel of the first frequency band and the direction of the antenna panel of the second frequency band, the processing unit 510 is used to estimate the channel information of the second frequency band based on the difference between the position of the antenna panel of the first frequency band and the position of the antenna panel of the second frequency band, the difference between the direction of the antenna panel of the first frequency band and the direction of the antenna panel of the second frequency band, and the channel information of the first frequency band; and perform beam management of the second frequency band based on the channel information of the second frequency band.

[0109] In a possible implementation, the transceiver unit 520 is further configured to send second information to the terminal, where the second information is used to request the first information.

[0110] For more detailed description of the processing unit 510 and the transceiver unit 520, please refer to Figure 4 The method embodiment shown is described in detail.

[0111] like Figure 6 As shown, the communication device 600 includes a processor 610 and an interface circuit 620. The processor 610 and the interface circuit 620 are coupled to each other. It is understood that the interface circuit 620 can be a transceiver or an input-output interface. Optionally, the communication device 600 may also include a memory 630 for storing instructions executed by the processor 610 or storing input data required by the processor 610 to execute instructions or storing data generated after the processor 610 executes instructions.

[0112] When the communication device 600 is used to implement Figure 4 When the method is shown, the processor 610 is used to implement the function of the above-mentioned processing unit 510, and the interface circuit 620 is used to implement the function of the above-mentioned transceiver unit 520.

[0113] When the above-mentioned communication device is a chip applied to a terminal, the terminal chip implements the functions of the terminal in the above-mentioned method embodiment. The terminal chip receives information from the base station, which can be understood as the information is first received by other modules in the terminal (such as a radio frequency module or an antenna), and then sent to the terminal chip by these modules. The terminal chip sends information to the base station, which can be understood as the information is first sent to other modules in the terminal (such as a radio frequency module or an antenna), and then sent to the base station by these modules.

[0114] When the above-mentioned communication device is a chip applied to a base station, the base station chip implements the function of the base station in the above-mentioned method embodiment. The base station chip receives information from the terminal, which can be understood as the information is first received by other modules in the base station (such as a radio frequency module or an antenna), and then sent to the base station chip by these modules. The base station chip sends information to the terminal, which can be understood as the information is sent to other modules in the base station (such as a radio frequency module or an antenna), and then sent to the terminal by these modules.

[0115] In the present application, when entity A sends information to entity B, it can be that A sends it directly to B, or that A sends it to B indirectly through other entities. Similarly, when entity B receives information from entity A, it can be that entity B directly receives the information sent by entity A, or that entity B indirectly receives the information sent by entity A through other entities. Entities A and B here can be RAN nodes or terminals, or modules inside the RAN nodes or terminals. The sending and receiving of information can be information interaction between a RAN node and a terminal, for example, information interaction between a base station and a terminal; the sending and receiving of information can also be information interaction between two RAN nodes, for example, information interaction between a CU and a DU; the sending and receiving of information can also be information interaction between different modules inside a device, for example, information interaction between a terminal chip and other modules of the terminal, or information interaction between a base station chip and other modules in the base station.

[0116] It is understandable that the processor in the embodiments of the present application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0117] The method steps in the embodiments of the present application can be implemented in hardware or in software instructions that can be executed by a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, register, hard disk, mobile hard disk, CD-ROM or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. The storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a base station or a terminal. The processor and the storage medium can also be present in a base station or a terminal as discrete components.

[0118] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by 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 or instructions. When the computer program or instruction is loaded and executed on a computer, the process or function described in the embodiment of the present application is executed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device or other programmable device. The computer program or instruction may 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 or instruction may be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wired or wireless means. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server, data center, etc. that integrates one or more available media. The available medium may be a magnetic medium, for example, a floppy disk, a hard disk, a tape; it may also be an optical medium, for example, a digital video disc; it may also be a semiconductor medium, for example, a solid-state hard disk. The computer-readable storage medium may be a volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

[0119] In the various embodiments of the present application, unless otherwise specified or provided for in any logical conflict, the terms and / or descriptions between the different embodiments are consistent and may be referenced to each other, and the technical features in the different embodiments may be combined to form new embodiments according to their inherent logical relationships.

[0120] In the present application, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. In the text description of the present application, the character " / " generally indicates that the previous and next associated objects are in an "or" relationship; in the formula of the present application, the character " / " indicates that the previous and next associated objects are in a "division" relationship. "Including at least one of A, B and C" can mean: including A; including B; including C; including A and B; including A and C; including B and C; including A, B and C.

[0121] It is understood that the various numbers involved in the embodiments of the present application are only for the convenience of description and are not used to limit the scope of the embodiments of the present application. The size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic.

Claims

1. A multi-band communication method, characterized in that: include: Receive first information from a terminal, where the first information indicates information about a first frequency band antenna panel and information about a second frequency band antenna panel of the terminal; Beam management and / or channel measurement of the second frequency band is performed according to the information of the antenna panel of the first frequency band and the information of the antenna panel of the second frequency band.

2. The method according to claim 1, characterized in that The information of the antenna panel includes at least one of the following: the position of the antenna panel, the direction of the antenna panel, the number of antenna units included in the antenna panel, and the frequency band of the antenna panel; wherein the direction of the antenna panel is represented by a horizontal angle and / or a vertical angle; and the antenna panel is the first frequency band antenna panel or the second frequency band antenna panel.

3. The method according to claim 1 or 2, characterized in that: The method further comprises: According to the information of the first frequency band antenna panel and the information of the second frequency band antenna panel, it is determined that the first frequency band antenna panel and the second frequency band antenna panel are not deployed on the same sky plane.

4. The method according to claim 3, characterized in that The determining, according to the information of the first frequency band antenna panel and the information of the second frequency band antenna panel, that the first frequency band antenna panel and the second frequency band antenna panel are not co-planar deployment includes: When a preset condition is met, it is determined that the first frequency band antenna panel and the second frequency band antenna panel are not deployed on the same sky; wherein the preset condition includes at least one of the following items: the difference between the position of the first frequency band antenna panel and the position of the second frequency band antenna panel is greater than a first threshold, the difference between the horizontal angle of the first frequency band antenna panel and the horizontal angle of the second frequency band antenna panel is greater than a second threshold, and the difference between the vertical angle of the first frequency band antenna panel and the vertical angle of the second frequency band antenna panel is greater than a third threshold.

5. The method according to any one of claims 1 to 4, characterized in that The performing beam management and / or channel measurement of the second frequency band according to the information of the antenna panel of the first frequency band and the information of the antenna panel of the second frequency band includes: Beam management and / or channel measurement of the second frequency band is performed based on the difference between the position of the first frequency band antenna panel and the position of the second frequency band antenna panel and the difference between the direction of the first frequency band antenna panel and the direction of the second frequency band antenna panel.

6. The method according to claim 5, characterized in that The performing beam management of the second frequency band according to the difference between the position of the first frequency band antenna panel and the position of the second frequency band antenna panel, and the difference between the direction of the first frequency band antenna panel and the direction of the second frequency band antenna panel, includes: estimating channel information of the second frequency band according to a difference between a position of the first frequency band antenna panel and a position of the second frequency band antenna panel, a difference between a direction of the first frequency band antenna panel and a direction of the second frequency band antenna panel, and channel information of the first frequency band; Perform beam management of the second frequency band according to the channel information of the second frequency band.

7. The method according to any one of claims 1 to 6, characterized in that: The method further comprises: Sending second information to the terminal, where the second information is used to request the terminal to send the first information.

8. A multi-band communication method, executed by a terminal or a module applied to a terminal, characterized in that: include: Sending first information to a network device, where the first information indicates information about a first frequency band antenna panel and information about a second frequency band antenna panel of the terminal, where the first frequency band antenna panel and the second frequency band antenna panel are not deployed on the same antenna plane.

9. The method according to claim 8, characterized in that The information of the antenna panel includes at least one of the following: the position of the antenna panel, the direction of the antenna panel, the number of antenna units included in the antenna panel, and the frequency band of the antenna panel; wherein the direction of the antenna panel is represented by a horizontal angle and / or a vertical angle; and the antenna panel is the first frequency band antenna panel or the second frequency band antenna panel.

10. The method according to claim 8 or 9, characterized in that: The method further comprises: Second information is received from the network device, where the second information is used to request the first information.

11. A communication device, characterized in that: The method comprises a unit or a module for implementing the method according to any one of claims 1 to 10.

12. A computer-readable storage medium, characterized in that: The storage medium stores a computer program or an instruction. When the computer program or the instruction is executed by the communication device, the method according to any one of claims 1 to 10 is implemented.

13. A computer program product, characterized in that The computer program product comprises: a computer program code, and when the computer program code is executed by a computer, the computer is caused to perform the method according to any one of claims 1 to 10.

14. A chip, characterized in that: The chip includes at least one processor and an interface, wherein the processor is used to read and execute instructions stored in a memory, and when the instructions are executed, the chip executes the method according to any one of claims 1 to 10.

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