Communication method and apparatus

Abstract

A communication method and apparatus. The method comprises: determining first information, wherein the first information is used for indicating panel information of an antenna panel, the first information is used for determining whether a first apparatus is suitable for camping on a cell of a first network device, and the antenna panel is used for transmitting and / or reflecting a signal; and sending the first information to the first network device. By means of the method provided in the present application, after camping on a cell of a first network device, panel information of an antenna panel is indicated by means of first information, and thus whether a first apparatus is suitable for camping on the cell of the first network device can be determined on the basis of the panel information of the antenna panel, such that cell switching can be executed when the first apparatus is not suitable for camping on the cell of the first network device, and thus the first apparatus can access a suitable cell, thereby improving a cell coverage effect.

Description

Communication method and apparatus

[0001] Cross-reference to Related Applications

[0002] This application claims priority to the Chinese Patent Application No. 202410546954.6, filed on April 30, 2024, and entitled "A Communication Method and Apparatus", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the field of communication technology, and in particular to a communication method and apparatus. BACKGROUND

[0004] In a cell of a network device, a reconfigurable intelligent meta-surface (RIS) can be deployed to assist the network to improve the coverage of the cell. The RIS is considered as a key enabling technology to expand the coverage of a wireless communication network. The RIS can be equipped with a mobile terminal (MT) for receiving control signaling of a base station, i.e., RIS-MT. After the RIS-MT accesses the base station, the base station can adjust the phase of each element in the RIS by sending signaling to the RIS-MT, so as to reflect the received signal of the RIS to a desired direction, thereby achieving the function of channel enhancement in a weak coverage area.

[0005] Since the RIS can be within the coverage of multiple base stations, the RIS can not be suitable for accessing the base station, but the RIS can also access the base station according to the access procedure. In this way, the function of the RIS cannot be exerted, and a better coverage improvement effect cannot be achieved. SUMMARY

[0006] The present application provides a communication method and apparatus to solve how to improve the effect of cell coverage.

[0007] In a first aspect, the present application provides a communication method, which can be applied to a first device. The first device can be a mobile terminal, or a processor, a chip or a functional module in the mobile terminal. The method can include: determining first information; the first information is used to indicate panel information of an antenna panel, and the first information is used to determine whether the first device is suitable for camping in a cell of a first network device; and the antenna panel is used to transmit and / or reflect a signal; and sending the first information to the first network device.

[0008] By the method provided in the application, after camping on a cell of a first network device, panel information of an antenna panel is indicated by first information, so that whether the first device is suitable for camping on the cell of the first network device can be determined according to the panel information of the antenna panel; in this way, the first device can perform cell switching when it is not suitable for camping on the cell of the first network device, so that the first device can access a suitable cell and the effect of cell coverage is improved.

[0009] In a possible implementation, the first information is used to indicate panel information of an antenna panel, including that the first information includes a first angle of arrival (AoA); and the first AoA is an AoA at which the first signal from the first network device is received by the antenna panel.

[0010] In the method, the first signal of the first network device is received by the antenna panel using the first AoA, so that the orientation of the antenna panel can be determined according to the first AoA, and whether the antenna panel is oriented to the first network device can be determined. In this way, when it is determined that the antenna panel is not oriented to the first network device, it can be determined that the first device is not suitable for camping on the cell of the first network device; and when it is determined that the antenna panel is oriented to the first network device, it can be determined that the first device is suitable for camping on the cell of the first network device.

[0011] In a possible implementation, the first information is used to indicate panel information of an antenna panel, including that the first information includes normal vector direction information of the antenna panel.

[0012] By the normal vector direction information of the antenna panel, the orientation of the antenna panel can be directly indicated, so that whether the first device is suitable for camping on the cell of the first network device can be quickly determined.

[0013] In a possible implementation, the method further includes: receiving second information from the first network device, the second information indicating that a signal is detected in a second AoA angle range; receiving a second signal by a second AoA angle in the second AoA angle range, and sending third information to the first network device; the third information indicating that the second signal is detected.

[0014] In a possible implementation, the second signal is from a second network device, and the method further includes:

[0015] Receiving fourth information from the first network device, the fourth information indicating switching to the second network device.

[0016] By the method, when it is determined that the second signal from the second network device is received by the second AoA, it can be determined that the first device can also receive the signal from the second network device, so as to instruct the second network device to switch to the second network device, and improve the coverage performance of the second network device.

[0017] In a possible implementation, the method further includes: sending fifth information to a terminal device associated with the first device, the fifth information indicating switching to the second network device after a first time length.

[0018] By the method, the terminal device associated with the first device can be simultaneously switched to the second network device, and the continuity of the terminal device service is ensured. Moreover, after the first device completes the switching, the reflection parameter of the RIS antenna panel also needs to be configured, and during the configuration of the reflection parameter, the RIS antenna panel can not form a new channel and can not reflect the signal. Therefore, by indicating the waiting time first time, the first device completes the switching and the configuration of the reflection parameter, and a new channel is formed; and the terminal device can communicate through the first network device within the waiting time first time, and after the terminal device completes the switching, the second network device can also provide services for the terminal device in time.

[0019] In a second aspect, the present application provides a communication method, and an execution subject of the method is a network device or a module or chip in the network device. Here, the network device is taken as an example for description. The method includes: establishing a connection with a first device; receiving first information from the first device; the first information is used to indicate panel information of an antenna panel, and is used to determine whether the first device is suitable for camping in a cell of a first network device, and the antenna panel is used to transmit and / or reflect a signal.

[0020] In a possible implementation, the method further includes: determining, according to the first information, whether the first device is suitable for camping in the cell of the first network device.

[0021] In a possible implementation, the first information includes a first angle of arrival (AoA); and the first AoA is an AoA of receiving a first signal from the first network device through the antenna panel.

[0022] In a possible implementation, the determining, according to the first information, whether the first device is suitable for camping in the cell of the first network device includes:

[0023] The first AoA is located in a first AoA angle range, and it is determined that the first device is suitable for camping in the cell of the first network device.

[0024] Or, the first AoA is outside the first AoA angle range, and it is determined that the cell of the first network device is not suitable for camping.

[0025] In a possible implementation, the first information comprises normal vector direction information of the antenna panel.

[0026] In a possible implementation, the determining whether the cell of the first network device is suitable for camping according to the first information comprises:

[0027] obtaining position information of the antenna panel; and determining, according to the position information of the antenna panel and the normal vector direction information of the antenna panel, that the orientation of the antenna panel matches the first network device, and determining that the cell of the first network device is suitable for camping.

[0028] Or, determining, according to the position information of the antenna panel and the normal vector direction information of the antenna panel, that the orientation of the antenna panel does not match the first network device, and determining that the cell of the first network device is not suitable for camping.

[0029] In a possible implementation, the determining that the cell of the first network device is not suitable for camping, the method further comprises:

[0030] sending second information, the second information indicating that a signal is detected in a second AoA angle range.

[0031] In a possible implementation, the method further comprises:

[0032] receiving third information from the first device, the third information indicating that a second signal is detected;

[0033] the second signal is from the first network device, and it is determined that the cell of the first network device is suitable for camping.

[0034] In a possible implementation, the method further comprises:

[0035] receiving third information from the first device, the third information indicating that a second signal is received;

[0036] the second signal is from a second network device, and fourth information is sent, the fourth information indicating that switching to the second network device.

[0037] In a possible implementation, the method further comprises: sixth information is sent by a terminal device associated with the first device, the sixth information indicating that the terminal device switches to the second network device after a first time.

[0038] In a third aspect, the present application provides a communication method, which can be applied to a first device, the first device can be a mobile terminal, or a processor, a chip or a functional module in the mobile terminal. The method can include: receiving a first signal from a first network device; sending first indication information to the first network device, the first indication information being used for feeding back whether the first device camps on a cell of the first network device; the first indication information being determined according to a first angle of arrival (AoA), the first AoA being an AoA of receiving the first signal through an antenna panel, the antenna panel being used for transmitting and / or reflecting signals.

[0039] By the method provided in the present application, after camping on the cell of the first network device, the first indication information is used for feeding back whether the first device camps on the cell of the first network device, so that the first device can perform cell switching when not camping on the cell of the first network device, thereby enabling the first device to access a suitable cell and improving the effect of cell coverage.

[0040] In a possible implementation, the first AoA is located within a first AoA angle range, and the first indication information is used for feeding back that the first device camps on the cell of the first network device; or the first AoA is located outside the first AoA angle range, and the first indication information is used for feeding back that the first device does not camp on the cell of the first network device.

[0041] In a possible implementation, the first indication information is used for feeding back that the first device does not camp on the cell of the first network device, and the method further includes: receiving second indication information from the first network device, the second indication information indicating that a signal is detected within a second AoA angle range; receiving a second signal through a second AoA angle within the second AoA angle range, and sending third indication information to the first network device; the third indication information indicating that the second signal is detected.

[0042] In a possible implementation, the second signal is from a second network device, and the method further includes:

[0043] receiving fourth indication information from the first network device; the fourth indication information indicating switching to the second network device.

[0044] In a fourth aspect, the present application provides a communication method, the execution subject of the method is a network device or a module or chip in the network device, and the network device is taken as an example for description. The method comprises: establishing a connection with a first device; receiving first indication information from the first device; the first indication information is used for feeding back whether the first device camps on a cell of a first network device; the first indication information is determined according to a first angle of arrival (AoA), the first AoA is an AoA of receiving a first signal of the first network device through an antenna panel, and the antenna panel is used for transmitting and / or reflecting a signal.

[0045] In a possible implementation, whether it is suitable to camp on the cell of the first network device is determined according to the first indication information.

[0046] In a possible implementation, the first indication information is used for feeding back that the first device does not camp on the cell of the first network device, and the method further comprises: sending second indication information, the second indication information indicating that a signal is detected in a second AoA angle range.

[0047] In a possible implementation, the method further comprises: receiving third information from the first device; the third information indicates that a second signal is detected; the second signal is from a second network device, sending fourth indication information; the fourth indication information indicates switching to the second network device; or the second signal is from the first network device, and it is determined that it is suitable to camp on the cell of the first network device.

[0048] In a fifth aspect, the present application further provides a communication device, which can implement any method provided in any of the first aspect to the fourth aspect. The communication device can be implemented by hardware, or by hardware executing corresponding software. The hardware or software comprises one or more units or modules corresponding to the above functions.

[0049] In a possible implementation, the communication device comprises a processor configured to support the communication device to perform the corresponding functions of the first device or the first network device in the above method. The communication device can further comprise a memory coupled to the processor, which stores necessary program instructions and data of the communication device. Optionally, the communication device further comprises an interface circuit for supporting communication between the communication device and a terminal device or the like.

[0050] In a possible implementation, the communication device comprises corresponding functional modules for respectively implementing the steps in the above method. The functions can be implemented by hardware, or by hardware executing corresponding software. The hardware or software comprises one or more modules corresponding to the above functions.

[0051] In a possible implementation, the communication apparatus comprises a processing unit and a communication unit, which can perform the corresponding functions in the above method examples, and the details are described in the method provided in any one of the first aspect to the fourth aspect, which will not be repeated here.

[0052] In a sixth aspect, a communication apparatus is provided, which comprises a processor and an interface circuit, the interface circuit is configured to receive a signal from another communication apparatus outside the communication apparatus and transmit the signal to the processor or send a signal from the processor to another communication apparatus outside the communication apparatus, and the processor realizes the function modules of the method in any possible implementation manner of any one of the first aspect to the fourth aspect by means of logic circuit or executing computer programs or instructions. Optionally, the communication apparatus further comprises a memory configured to store the computer programs or instructions.

[0053] In a seventh aspect, a circuit is provided, which is configured to execute the method in any possible implementation manner of any one of the first aspect to the fourth aspect, and the circuit can comprise a chip circuit. Optionally, the circuit can be further coupled with a memory.

[0054] In an eighth aspect, a chip is provided, which comprises a processor configured to realize the method in any possible implementation manner of any one of the first aspect to the fourth aspect when the processor executes computer programs or instructions. Optionally, the chip can further comprise a memory, and the chip can be composed of a chip or can comprise a chip and other discrete devices.

[0055] In a ninth aspect, a communication apparatus is provided, which comprises a processor configured to realize the method in any possible implementation manner of any one of the first aspect to the fourth aspect by means of logic circuit or executing computer programs or instructions.

[0056] In a tenth aspect, a communication apparatus is provided, which comprises units or modules configured to execute the method in any possible implementation manner of any one of the first aspect to the fourth aspect.

[0057] In an eleventh aspect, a computer readable storage medium is provided, which stores computer programs or instructions, and when the computer programs or instructions are executed by a processor, the method in any possible implementation manner of any one of the first aspect to the fourth aspect is realized.

[0058] In a twelfth aspect, a computer program product is provided, which stores instructions, and when a computer reads and executes the computer program product, the method in any possible implementation manner of any one of the first aspect to the fourth aspect is realized.

[0059] In a thirteenth aspect, the embodiments of the present application further provide a communication system. The communication system comprises: a first device for implementing the method in the first aspect and any possible implementation manner of the first aspect; a first network device for implementing the method in the second aspect and any possible implementation manner of the second aspect. Or the communication system comprises: a first device for implementing the method in the third aspect and any possible implementation manner of the third aspect; a first network device for implementing the method in the fourth aspect and any possible implementation manner of the fourth aspect. BRIEF DESCRIPTION OF DRAWINGS

[0060] FIG. 1 is a schematic diagram of a network device architecture according to an embodiment of the present application;

[0061] FIG. 2 is a schematic diagram of a RIS panel according to an embodiment of the present application;

[0062] FIG. 3 is a schematic diagram of a RIS device according to an embodiment of the present application;

[0063] FIG. 4 is a schematic diagram of a MT structure according to an embodiment of the present application;

[0064] FIG. 5A is a schematic diagram of an application scenario according to an embodiment of the present application;

[0065] FIG. 5B is a schematic diagram of an application scenario according to an embodiment of the present application;

[0066] FIG. 6 is a schematic diagram of a communication method according to an embodiment of the present application;

[0067] FIG. 7 is a schematic diagram of an application scenario according to an embodiment of the present application;

[0068] FIG. 8 is a schematic diagram of an application scenario according to an embodiment of the present application;

[0069] FIG. 9 is a schematic diagram of a communication method according to an embodiment of the present application;

[0070] FIG. 10 is a schematic diagram of a communication device structure according to an embodiment of the present application;

[0071] FIG. 11 is a schematic diagram of a communication device structure according to an embodiment of the present application;

[0072] FIG. 12 is a schematic diagram of a communication device structure according to an embodiment of the present application. DETAILED DESCRIPTION

[0073] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all embodiments.

[0074] The terms "first", "second", and the like, as well as corresponding terms denoted by numbers, etc., are used to distinguish similar objects, and do not have to be used to describe a particular order or sequence. It should be understood that the terms thus used can be interchanged, as appropriate, and are merely used to distinguish the objects of the same attribute in the description of the embodiments of the present application. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, so that a process, method, system, product or apparatus including a series of units does not have to be limited to those units, but can include other units not clearly listed or inherent to the process, method, product or apparatus.

[0075] In the description of the present application, "and / or" describes the association relationship of the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can represent the following three cases: A exists alone, A and B exist together, and B exists alone, where A and B can be singular or plural. " / " represents "or", for example, a / b represents a or b.

[0076] The method and device provided by the embodiments of the present application are based on the same or similar technical concepts. Since the principles of the method and device for solving problems are similar, the implementation of the device and the method can be mutually referred to, and the repeated parts will not be described again.

[0077] The method provided by the embodiments of the present application can be applied to various mobile communication systems, for example, can be internet of things (IoT), narrow band internet of things (NB-IoT), can be a fourth generation (4th generation, 4G) communication system (such as long term evolution (long term evolution, LTE)), can also be a fifth generation (5th generation, 5G) communication system (such as 5G new radio (new radio, NR)), can also be a hybrid architecture of LTE and NR, can also be a new communication system in future communication development, etc. The communication system can also include a machine to machine (machine to machine, M2M) network, machine type communication (machine type communication, MTC) or other networks.

[0078] In the following, first, some terms in the embodiments of the present application are explained and described, so as to facilitate the understanding of those skilled in the art.

[0079] In the embodiments of the present application, the network device can be a device in a wireless network, and the network device can also be referred to as a network apparatus or a radio access network device or an access network device. For example, the network device can be a radio access network (RAN) node that accesses a terminal device to a wireless network, and can also be referred to as an access network device. The network device includes but is not limited to: a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation NodeB (gNB) in a 5th generation (5G) mobile communication system, an access network device in an open radio access network (O-RAN), a base station in a future mobile communication system, or an access node in a wireless fidelity (WiFi) system, etc.; or can be a module or unit that completes part of the function of the base station, for example, can be a centralized unit (CU), a distributed unit (DU), a centralized unit control plane (CU-CP) module, or a centralized unit user plane (CU-UP) module. The access network device can be a macro base station, or a micro base station or an indoor station, or a relay node or a donor node, etc. The specific technology and specific device form of the network device adopted in the present application are not limited.

[0080] As shown in FIG. 1, in some implementations, a network device can include a centralized unit (CU) and a distributed unit (DU). The RAN device including a CU node and a DU node splits the protocol layers of a gNB in the NR system, with some protocol layer functions being centrally controlled at the CU and the rest or all of the protocol layer functions being distributed in the DU, with the CU centrally controlling the DU. Further, the CU can be further divided into a control plane (CU-CP) and a user plane (CU-UP). The CU-CP is responsible for control plane functions, mainly including radio resource control (RRC) and a packet data convergence protocol (PDCP) corresponding to the control plane (i.e., PDCP-C). The PDCP-C is mainly responsible for encryption and decryption of control plane data, integrity protection, data transmission, etc. The CU-UP is responsible for user plane functions, mainly including a service data adaptation protocol (SDAP) and a PDCP corresponding to the user plane (i.e., PDCP-U). The SDAP is mainly responsible for processing data of the core network and mapping a flow to a bearer. The PDCP-U is mainly responsible for encryption and decryption of the data plane, integrity protection, header compression, sequence number maintenance, data transmission, etc. The CU-CP and the CU-UP are connected through an El interface. The CU-CP represents the gNB to connect with the core network through an NG interface, and to connect with the DU through a control plane (i.e., Fl-C) and an Fl interface. The CU-UP connects with the DU through a user plane (i.e., Fl-U) and an Fl interface. Of course, there is also a possible implementation that the PDCP-C is also in the CU-UP.

[0081] It can be understood that the CU (including CU-CP or CU-UP) or DU can also have different names in different systems, but those skilled in the art can understand its meaning. For example, in an open radio access network (O-RAN) system, the CU can also be referred to as an O-CU (open CU), the DU can also be referred to as an O-DU, the CU-CP can also be referred to as an O-CU-CP, and the CU-UP can also be referred to as an O-CU-UP. For the convenience of description, the CU, CU-CP, CU-UP and DU are taken as examples for description in this application. The network device can also include an active antenna unit (AAU). The CU implements part of the function of the gNB, and the DU implements part of the function of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and implements the function of the RRC layer. The DU is responsible for processing the physical layer protocol and real-time service, and implements the function of the radio link control (RLC) layer, the media access control (MAC) layer and the physical (PHY) layer. In some deployments, the CU can also be divided into a centralized unit control plane (CU-CP) node and a centralized unit user plane (CU-UP) node. Among them, the CU-CP is responsible for the control plane function, and the CU-UP is responsible for the user plane function.

[0082] The terminal device involved in the embodiments of the present application can be a wireless terminal device capable of receiving network device scheduling and indication information. The terminal device can also be referred to as a terminal device, a user equipment (UE), a terminal, a mobile station (MS), a mobile terminal (MT), etc. The terminal device can be a device including a wireless communication function (providing voice / data connectivity to users). For example, a handheld device with wireless connection function, or a vehicle-mounted device, a vehicle-mounted module, etc. At present, some examples of terminal devices are: a mobile phone, a tablet computer, a notebook computer, a palm computer, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in vehicle networking, a wireless terminal in self driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, or a wireless terminal in smart home, a device-to-device (D2D) terminal device, a vehicle-to-everything (V2X) communication terminal device, a smart vehicle, a telematics box (T-box), a machine-to-machine / machine-type communications (M2M / MTC) terminal device, an internet of things (IoT) terminal device, etc. For example, the terminal device can be a vehicle-mounted device, a whole vehicle device, a vehicle-mounted module, a vehicle, an on board unit (OBU), a roadside unit (RSU), a T-box, a chip or a system on chip (SOC), etc. The above-mentioned chip or SOC can be installed in a vehicle, an OBU, an RSU or a T-box. The wireless terminal in industrial control can be a camera, a robot, etc. The wireless terminal in smart home can be a television, an air conditioner, a sweeper, a sound box, a set-top box, etc.The terminal device can also be a V2X device, for example, a smart car or an intelligent car, a digital car, an unmanned car or a driverless car or a pilotless car or an automobile, a self-driving car or an autonomous car, a pure EV or a Battery EV, a hybrid electric vehicle (HEV), a range extended EV (REEV), a plug-in HEV (PHEV), a new energy vehicle, a road site unit (RSU). The terminal device can also be a device in device-to-device (D2D) communication, for example, an electricity meter, a water meter, etc. In addition, in the embodiments of the present application, the terminal device can also be a terminal device in an IoT system. IoT is an important part of future information technology development, and its main technical feature is to connect objects through communication technology and network, so as to realize the intelligent network of human-machine interconnection and object-object interconnection.

[0083] A reconfigurable intelligent meta-surface (RIS) is a digital reconfigurable artificial electromagnetic surface composed of a large number of sub-wavelength digital reconfigurable basic units (also known as RIS units or array elements or reflecting units) arranged in a certain macroscopic arrangement (periodic arrangement or non-periodic arrangement). The RIS units can be arranged in an RIS panel. For example, as shown in FIG. 2, since the size and arrangement of the basic units included in the RIS panel can be designed arbitrarily, the RIS can break through the limitation that traditional materials are difficult to accurately manipulate at the atomic or molecular level, and construct a new material with super-normal medium parameters that cannot be realized by traditional materials and traditional technology. Compared with the surface of traditional materials, the RIS has the ability to shape electromagnetic waves according to the generalized Snell's law. The RIS can actively and intelligently control spatial electromagnetic waves to form an electromagnetic environment with controllable amplitude, phase, polarization and frequency. Since the RIS adopts the design concept of using a small number of active devices or even all passive devices, and can be deployed by using metamaterials and splicing, it has the advantages of low cost, low power consumption, low complexity and easy deployment, and has the potential for deployment of future networks. According to the specific control ability of the RIS on electromagnetic waves, the reconfigurable super surface can be divided into: amplitude reconfigurable, phase reconfigurable, polarization reconfigurable, etc.

[0084] Optionally, in some embodiments, the RIS can also be described as an intelligent reflecting surface (IRS), a reconfigurable reflecting surface (RRS), a smart surface, a transmissive metasurface, a large intelligent metasurface (LIM), a software-controlled metasurface, a smart reflect-array, a software-defined surface (SDS), a passive intelligent surface (PIS), a passive massive multiple input multiple output (passive massive MIMO), a distributed passive massive input multiple output (distributed passive massive MIMO), and the like.

[0085] By controlling the shaping parameters (such as reflection angle or refraction angle, etc.) of the RIS to the electromagnetic wave, flexible control of the electromagnetic wave can be achieved. The control mode of the RIS includes voltage control. For example, the basic unit in the RIS is connected to a control device such as a diode (such as a variable capacitance diode, etc.). By applying different bias voltages to the diode, the working parameters of the basic unit connected to the diode are different, thereby changing the working state of the basic unit, such as the reflection phase of the RIS to the electromagnetic wave changes by 180°.

[0086] From the above characteristics of the RIS, in order to achieve flexible regulation and control of the electromagnetic wave, the working state distribution of the basic unit in the RIS can be changed, thereby the transmission characteristics of the electromagnetic wave (including transmission direction, signal strength, signal amplitude, signal carrier frequency, signal phase, etc.) can be controlled.

[0087] In addition, due to its low cost, easy integration, low power consumption, and flexible control, RIS has broad application prospects in the fields of communication, radar, stealth, etc. In the field of communication, RIS is often used in wireless networks. By utilizing the reflection characteristics of RIS to reflect radio frequency signals (radio frequency signals are transmitted in the form of electromagnetic waves), the coverage and capacity of wireless networks can be improved. By utilizing the radiation characteristics of RIS, the transmitted data is directly modulated, eliminating the need for radio frequency front-end modules such as mixing and amplification in traditional communication links, thereby reducing power consumption and cost.

[0088] Based on this, in the field of communication, the characteristics of RIS can be utilized to control the working parameters of each basic unit, so that RIS can reflect multiple harmonic beams that meet the conditions. In this way, even a communication device with only a single radio frequency link (i.e., one antenna) can utilize RIS to achieve multi-beam control, and therefore RIS has broad application prospects in beamforming technology.

[0089] In this application, RIS can refer to a device or apparatus that includes RIS or a device or apparatus that supports RIS. The RIS apparatus can also be referred to as IRS, RRS, smart surface, transmissive metasurfaces, LIM, software-controlled metasurfaces, smart reflecting array, SDS, and PIS, passive massive MIMO, distributed passive massive MIMO, etc. Alternatively, the RIS apparatus can also be a device that supports at least one of RIS, IRS, RRS, smart surface, transmissive metasurfaces, LIM, software-controlled metasurfaces, smart reflecting array, SDS, and PIS, passive massive MIMO, distributed passive massive MIMO. RIS can also be referred to as RIS device or RIS apparatus or RIS relay or RIS, etc. Hereinafter, it is collectively referred to as RIS apparatus.

[0090] The RIS apparatus can also include RIS-MT, referred to as MT for short. The MT can have the function of a terminal device or can be a terminal device. As shown in FIG. 3, the RIS apparatus can include MT and RIS panel. The MT can also be referred to as a control unit or RIS controller, etc. The RIS panel can also be referred to as RIS antenna panel or RIS module or RIS forwarding module or reflecting array, etc. The MT and the RIS panel interact internally.

[0091] The MT can include a baseband module, a middle radio frequency module, and a radio frequency front end, etc. For example, as shown in FIG. 4, the baseband module can include a processor, a decoder, an encoder, a demodulator, a modulator, etc.; the middle radio frequency module can include an analog to digital converter (ADC), a digital to analog converter (DAC), an upconverter, and a downconverter, etc.; the radio frequency front end can include a duplexer, a low noise amplifier (LNA), a power amplifier (PA), and an antenna, etc. The above is only an example, and the MT can also include other modules, which are not limited in the present application.

[0092] After the MT accesses the network device, the network device can adjust the phase of each element in the RIS panel by sending signaling to the MT, so as to reflect the received signal of the RIS panel to the desired direction, thereby realizing the function of channel enhancement in the weak coverage area. For example, in FIG. 5A, the LoS path of the UE to the network device is blocked, and if no RIS device is deployed, the signal sent by the UE can only reach the network device through the non-line-of-sight (NLoS) path, and the received signal strength at the network device is weak. After the deployment of the RIS device, the network device can reasonably adjust the phase of the RIS panel, so that the RIS panel reflects the signal of the UE to the desired direction, thereby realizing the enhancement of the weak coverage area and improving the communication performance of the device in the weak coverage area. Similarly, when the LoS path exists between the network device and the UE, but the channel condition number is large, the network device can adjust the phase of the RIS panel to realize the overall channel enhancement between the network device and the UE.

[0093] According to the deployment position of the RIS panel, it can be divided into fixed RIS panel and mobile RIS panel. The fixed RIS panel is generally deployed on the wall or glass, which improves the signal energy of a relatively fixed area; the mobile RIS panel is generally deployed on a moving object, such as a car, a train, or an airplane glass, which provides stable communication signals for terminal devices inside the vehicle, or the mobile RIS is deployed on a drone, which flies to a signal coverage area (such as a disaster location), and through the cooperation of the base station at a long distance and the RIS carried on the drone, it provides coverage for the signal coverage area.

[0094] According to the change mode of the channel by the RIS panel, it can be divided into reflective RIS, transmissive RIS and hybrid bidirectional RIS. The reflective RIS and the transmissive RIS reflect and refract signals respectively. For example, as shown in FIG. 5A, the RIS panel can be installed on a large plane (such as a wall or a ceiling in a room, a building or a sign outside), so as to reflect the radio frequency (RF) energy around the obstacle and create a virtual line of sight (LoS) propagation path between the communication source and the communication target, so that the communication source and the communication target can directly communicate, avoiding the interference of the obstacle on the communication. In the figure, the communication source is a UE, and the communication target is a network device. Of course, the communication source can also be a network device, and the communication target can also be a UE.

[0095] According to the structural relationship between the RIS panel and the MT, it can be divided into two RIS architectures. The first architecture is that the antenna of the MT is independent of the RIS panel. The advantage of this architecture is that the signals received and transmitted by the MT are reflected or transmitted by the RIS panel, which can achieve focusing of the outgoing and incoming beams and enhance the signal energy. The second RIS architecture is that the antenna of the MT is included in the RIS panel, that is, the antenna array of the RIS panel, most of which are passive array elements for reflecting / transmitting signals by the RIS panel; a small part of the array elements are active array elements used as the receiving and transmitting antennas of the MT.

[0096] At present, the RIS device needs to establish a connection with the network device, and the network device can send signaling to the RIS device only after the RIS device accesses the network device. In the traditional method, a white list or a black list is mainly configured for the RIS device, so that the RIS device only needs to access the network device in the white list or is prohibited from accessing the network device in the black list. This is relatively simple to implement, and for a movable RIS device, the RIS device will access a network device that is not optimal due to changes in the environment during movement. In another possible scenario, the RIS device is within the coverage range of multiple network devices, as shown in FIG. 5B, the RIS device selects a network device to access according to the reference signal receiving power (RSRP), for example, network device 2. However, due to various reasons, for example, the RIS panel of the RIS device faces away from the network device 2, causing the RIS device to be unable to receive the signal of the network device 2, and the RIS device is unable to reflect the signal of the network device 2 to the UE, resulting in the network device 2 being unable to communicate with the UE. However, the RIS panel of the RIS device faces the network device 1, and the signal of the network device 1 can be received by the UE after being reflected by the RIS device. However, since the RIS device does not access the network device 1, the UE cannot obtain the services of the network device 1 and the network device 2. Therefore, the present application provides a method for optimizing the cell access of the RIS device.

[0097] The network architecture and service scenarios described in the embodiments of the present application are used to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that, with the evolution of network architecture and the appearance of new service scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0098] It can be understood that the embodiments of the present application do not particularly limit the specific structure of the execution subject of the method provided by the embodiments of the present application, and the modules in the RIS device or network equipment can be applied, as long as the program recording the code of the method provided by the embodiments of the present application can be run to communicate according to the method provided by the embodiments of the present application.

[0099] As shown in FIG. 6, it is a flowchart of a communication method provided by the embodiments of the present application. The method comprises the following steps:

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

[0101] Here, the establishment of the connection can mean the establishment of an RRC connection. The specific process of establishing the connection by the first network equipment and the first device is not limited by the present application, for example, the connection can be established through a random access process, which will not be described here.

[0102] In an implementation manner, the first device can have the function of a terminal device, for example, the first device can be an MT, etc. The first device is associated with an antenna panel. The antenna panel can transmit and / or reflect signals and can have the ability to shape electromagnetic waves. For example, the antenna panel can transmit and / or reflect the signals of the first network equipment, and / or transmit and / or reflect the signals of the terminal device in the cell of the first network equipment to the first network equipment. In the present application, the signal can also be replaced by a wireless signal.

[0103] Optionally, the antenna panel can also have at least one of the following functions: changing at least one of the transmission direction, signal strength, signal amplitude, carrier frequency, and phase of the wireless signal; changing the reflection angle or refraction angle of the wireless signal, etc.

[0104] For example, the antenna panel can be an RIS antenna panel or an antenna panel with RIS function. RIS can also be described as IRS, RRS, smart surface, transmissive metasurfaces, LIM, software-controlled metasurfaces, smart reflecting array, SDS, PIS, passive massive MIMO, distributed passive massive MIMO, etc.

[0105] The first device is associated with the antenna panel, which means that the first device and the antenna panel are connected by physical connection or wireless connection, and are integrated as a whole device. For example, as shown in FIG. 3, the RIS device, the first device is the MT in the RIS device, and the antenna panel is the RIS panel in the RIS device. Alternatively, the first device and the antenna panel can also be independent devices.

[0106] The first device can instruct the antenna panel to transmit and / or reflect the wireless signal through control signaling, and / or change at least one of the transmission direction, signal strength, signal amplitude, carrier frequency, and phase of the wireless signal, and / or change the reflection angle or refraction angle of the wireless signal and the like. The control signaling can be generated by the first device or from a network device or the like.

[0107] In another implementation, the first device includes an MT and an antenna panel, which can be an RIS antenna panel or an antenna panel with RIS function. At this time, the first device can also refer to an RIS device.

[0108] In an implementation, after the first device completes initial access and enters the RRC connected state, it can report user type information to the first network device. For example, the user type information indicates that the user type of the first device is an RIS device or a device associated with an antenna panel. For another example, the user type information indicates that the user type of the first device is an RIS-MT, or an MT capable of controlling an RIS antenna panel, or an MT connected to an RIS antenna panel.

[0109] Optionally, the first network device determines that the user type of the first device is an RIS device or an RIS-MT or an MT capable of controlling an RIS antenna panel or an MT connected to an RIS antenna panel, and can send first signaling to the first device. The first signaling can instruct the first device to report panel information of the antenna panel. The first signaling can be high-layer signaling or physical layer signaling, which is not limited in the present application.

[0110] Step 602: The first device determines first information.

[0111] The first information is used to indicate the panel information of the antenna panel. The first information can be used to determine whether the first device is suitable for camping on the cell of the first network device, and / or the first information can be used to assist the first network device to determine whether the antenna panel is directed to the first network device.

[0112] In the present application, the first device suitable for camping on the cell of the first network device can be replaced by the first device allowed to camp on the cell of the first network device, or the first device capable of camping on the cell of the first network device, and the like, which will not be described here.

[0113] How the first information indicates the panel information of the antenna panel is not limited in the application. In an implementation, the first information includes a first angle of arrival (AOA); the first AoA is an AoA of receiving, by the antenna panel, a first signal from the first network device. The first AoA can include a first horizontal AoA and a first vertical AoA.

[0114] The first signal can be a signal received by the first device through the antenna panel in an initial access process, for example, the first signal is a synchronous signal / physical broadcast channel block (SS / PBCH block, SSB). For another example, the first signal can be a message 2 or a message 4 or a message B in a random access process.

[0115] For example, the antenna panel is an RIS antenna panel, and the first device is a vehicle-mounted transmissive RIS device, that is, the first device is a vehicle-mounted device and includes an RIS antenna panel, and the RIS antenna panel is a transmissive RIS. The RIS antenna panel is arranged on the front windshield of the vehicle-mounted device; the first device further includes one transmitting array element, which is at a fixed position in the vehicle-mounted device. Since the positions of the RIS antenna panel and the transmitting array element are relatively fixed, the first device can determine the relative position relationship of each reflecting element on the transmitting array element and the RIS antenna panel, and thus the first device can calculate the relative time delay τ_i of the signal s(t) transmitted by the first device through the transmitting array element to each reflecting element of the N reflecting elements of the RIS antenna panel, where i is the serial number of the reflecting element. After the influence of the relative time delay is offset by phase compensation, the N reflecting elements are equivalent to N antennas for transmitting or receiving signals, so that the first device can accurately obtain the AoA information of the RIS antenna panel when receiving the signal.

[0116] In another implementation, the first information includes normal vector direction information of the antenna panel. Here, the normal vector can refer to the normal vector of the plane on which the antenna panel is located.

[0117] Step 603: The first device sends the first information.

[0118] Correspondingly, the first network device receives the first information.

[0119] How the first device specifically sends the first information is not limited in the application.

[0120] Optionally, step 604: The first network device determines whether it is suitable to camp on the cell of the first network device according to the first information.

[0121] Specifically, whether the first device is suitable to camp on the cell of the first network device can be determined according to the first information.

[0122] In an implementation, if the first information comprises a first AoA, the first device is determined to be suitable to camp on the cell of the first network device if the first AoA is within a first AoA angle range, and the first device is determined to be unsuitable to camp on the cell of the first network device if the first AoA is outside the first AoA angle range. The first AoA angle range can be predefined or preconfigured, or the first AoA angle range can be determined according to a range of a signal transmission direction of the first network device, which is not limited in the present application.

[0123] If the first AoA is within the first AoA angle range, it can mean that an orientation of the antenna panel matches the signal transmission direction of the first network device, and the antenna panel can receive the signal of the first network device with a signal quality greater than or equal to a threshold in the orientation, or the antenna panel can receive the signal of the first network device in the orientation. Correspondingly, if the first AoA is outside the first AoA angle range, it can mean that the orientation of the antenna panel does not match the signal transmission direction of the first network device, and the RIS antenna panel cannot receive the signal of the first network device with the signal quality greater than or equal to the threshold in the orientation, or the antenna panel cannot receive the signal of the first network device in the orientation. The signal quality can be represented by a reference signal receiving power (RSRP), and the threshold can be predefined or preconfigured, which is not limited in the present application.

[0124] For example, the first device is a vehicle-mounted device, and the antenna panel is an RIS panel. The RIS antenna panel is located on the front windshield of the first device. As shown in (a) of FIG. 7, the first AoA angle range includes a horizontal angle of arrival range of (-60°, 60°), and as shown in (b) of FIG. 7, the first AoA angle range includes a vertical angle of arrival range of (-30°, 30°). The first device receives a first signal from network device 1 in the figure through the RIS antenna panel. The first AoA of the first signal includes a first horizontal angle of arrival of 0° and a first vertical angle of arrival of 0°. The first horizontal angle of arrival is within (-60°, 60°), and the first vertical angle of arrival is within (-30°, 30°). Therefore, the first AoA is within the first AoA angle range, and the first device and the RIS antenna panel are suitable for camping in the cell of network device 1. As can be seen from the figure, the signal sent by network device 1 is within the first AoA angle range, and the signal of network device 1 can be received by the RIS antenna panel. For network device 2 in the figure, the signal sent by network device 2 is outside the first AoA angle range. Although the RIS antenna panel can receive the signal of network device 2, the signal quality is low, and the communication efficiency is low.

[0125] In an implementation manner, if the first information includes the normal vector direction information of the antenna panel, the first network device can obtain the position information of the antenna panel. For example, the first network device can send a sensing signal, and determine the position information of the antenna panel through the echo signal of the sensing signal. The specific process is not limited. The position information of the antenna panel herein can also be replaced by the position information of the first device.

[0126] The first network device determines that the antenna panel is suitable for camping in the cell of the first network device according to that the orientation of the antenna panel matches the first network device according to the position information of the antenna panel and the normal vector direction information of the antenna panel. The orientation of the antenna panel matching the first network device can mean that the orientation of the antenna panel matches the signal transmission direction of the first network device, and the antenna panel can receive the signal of the first network device with a signal quality greater than or equal to a threshold in the orientation; or the orientation of the antenna panel matches the first network device, and the antenna panel can receive the signal of the first network device in the orientation.

[0127] The first network device determines that the orientation of the antenna panel does not match the first network device according to the position information of the antenna panel and the normal vector direction information of the antenna panel, and determines that the first device is not suitable for camping on the cell of the first network device. The orientation of the antenna panel not matching the first network device can mean that the orientation of the antenna panel does not match the signal transmission direction of the first network device, and the antenna panel cannot receive a signal of the first network device with a signal quality greater than or equal to a threshold in the orientation. Alternatively, the orientation of the antenna panel not matching the first network device means that the antenna panel cannot receive a signal of the first network device in the orientation.

[0128] For example, the first device is a vehicle-mounted device, and the antenna panel is an RIS antenna panel located on the front windshield of the first device. The first network device determines the position information of the RIS antenna panel, and determines that the RIS antenna panel is located in the south-west 5° direction of the network device according to the position information, i.e., the network device perceives that the first device is located in the south-west 5° direction of the network device.

[0129] As shown in (a) of FIG. 8, if the normal vector of the RIS antenna panel is north-east 5°, it is determined that the orientation of the RIS antenna panel does not match the network device according to the position information of the RIS antenna panel and the normal vector of the RIS antenna panel. At this time, the orientation of the RIS antenna panel is the same as or within the same range as the signal transmission direction of the network device, and the RIS antenna panel cannot receive a signal of the network device.

[0130] As shown in (b) of FIG. 8, if the normal vector of the RIS antenna panel is south-west 5°, it is determined that the orientation of the RIS antenna panel matches the network device according to the position information of the RIS antenna panel and the normal vector of the RIS antenna panel. At this time, the orientation of the RIS antenna panel is opposite to the signal transmission direction of the network device, and the RIS antenna panel can receive a signal of the network device.

[0131] In this application, if the first network device determines that the first device is suitable for camping on the cell of the first network device, the first device can be sent control signaling, such as a control instruction indicating beam information and a validity time of the beam information. The first device can control the antenna panel to reflect signals using the beam information at the validity time according to the control instruction, and the specific process is not repeated.

[0132] In this application, if the first network device determines that the first device is not suitable for camping on the cell of the first network device, the first device can be instructed to re-detect signals. In one implementation, the first network device can send second information indicating to detect signals in a second AoA angle range. The second AoA angle range can also be preset, which is not limited in this application.

[0133] The first device receives second information, and then detects a signal in the second AoA angle range through the antenna panel.

[0134] In an implementation, if the second signal is received through a second AoA angle in the second AoA angle range, third information is sent to the first network device, and the third information indicates that the second signal is detected. Specifically, if the second signal is from the first network device, the third information can further indicate that the second signal from the first network device is detected. The type of the second signal is not limited, and for example, the second signal can be a first SSB.

[0135] In this implementation, it is illustrated that there is multipath between the first network device and the antenna panel, and in this case, the first device can camp in a cell of the first network device.

[0136] In another implementation, if the second signal is received through a second AoA angle in the second AoA angle range, third information is sent to the first network device, and the third information indicates that the second signal is detected. Specifically, if the second signal is from the second network device, the third information can further indicate that the second signal from the second network device is detected, and for example, the third information can include an identifier or a cell identifier of the second network device. The type of the second signal is not limited, and for example, the second signal can be a first SSB.

[0137] Optionally, in this implementation, the first network device can send fourth information, and the fourth information indicates switching to the second network device, and the fourth information can further include system information in a cell of the second network device. The first device receives the fourth information, and then can switch to the second network device according to the fourth information. The specific switching process is not limited.

[0138] Optionally, in an implementation, the first device can further send fifth information to a terminal device associated with the first device, and the fifth information indicates switching to the second network device, and the fifth information can further include system information in a cell of the second network device. The terminal device associated with the first device can be a terminal device whose distance to the first device is within a distance threshold, or can be a terminal device having the same motion information as the first device, and the motion information can include at least one of a motion trajectory, a motion speed, and a motion direction. For example, the first device is a vehicle-mounted device, and the terminal device is located in the first device, for example, is used by a user in the first device, and then the terminal device can be associated with the first device.

[0139] The fifth information can also indicate a first time, and the fifth information indicates switching to the second network device after the first time, that is, the first time is a waiting time for the terminal device to switch to the second network device. The terminal device waits for the first device to complete switching first within the first time, and the terminal device performs a switching process to the second network device after the first time ends. The start time of the first time can be the time of receiving the fifth information, which is not limited in the present application. The first time can also be predefined.

[0140] In a possible implementation, the first device can send the fifth information to the terminal device associated with the first device through sidelink.

[0141] Optionally, in an implementation, the first network device sends sixth information to the terminal device associated with the first device, and the sixth information indicates switching to the second network device. The sixth information can also include system information in the cell of the second network device and the like. The sixth information can also indicate a first time, and the sixth information indicates switching to the second network device after the first time, that is, the first time is a waiting time for the terminal device to switch to the second network device. The start time of the first time can be the time of receiving the sixth information, which is not limited in the present application. The first time can also be predefined.

[0142] Through the method, the terminal device associated with the first device can be simultaneously switched to the second network device, ensuring the continuity of the terminal device service. Moreover, after the first device completes switching, the reflection parameter of the antenna panel also needs to be configured. During the period of configuring the reflection parameter, the antenna panel can not form a new channel and can not reflect signals. Therefore, by indicating the first time, the first device completes switching and the configuration of the reflection parameter to form a new channel. The terminal device can communicate through the first network device within the first time, and after the terminal device completes switching, the second network device can also timely provide services for the terminal device.

[0143] Through the method provided in the present application, after camping on the cell of the first network device, the panel information of the antenna panel is indicated through the first information, so that whether the first device is suitable for camping on the cell of the first network device can be determined according to the panel information of the antenna panel. In this way, the first device can perform cell switching when it is not suitable for camping on the cell of the first network device, so that the first device can access a suitable cell and improve the effect of cell coverage.

[0144] In the present application, the first device can also directly indicate whether it is suitable for camping on the cell of the first network device, which will be described in detail below.

[0145] As shown in FIG. 9, a communication method flow diagram provided by an embodiment of the present application is shown. The method includes the following steps.

[0146] Step 901: The first network device sends a first signal.

[0147] Correspondingly, the first device receives the first signal from the first network device.

[0148] The first signal can be used for initial access or connection establishment. For example, the first signal can be a first SSB. For another example, the first signal can be a message 2 or a message 4 or a message B in a random access process.

[0149] Here, the connection establishment can refer to RRC connection establishment.

[0150] In an implementation manner, the first device can have a function of a terminal device, for example, the first device can be an MT, etc. The first device is associated with an antenna panel. The antenna panel can transmit and / or reflect signals and can have a capability of shaping electromagnetic waves. For example, the antenna panel can transmit and / or reflect signals of the first network device and / or transmit and / or reflect signals of a terminal device in a cell of the first network device to the first network device.

[0151] Optionally, the antenna panel can further have at least one of the following functions: changing at least one of a transmission direction, a signal strength, a signal amplitude, a carrier frequency of a signal, a phase of a signal of a wireless signal; changing a reflection angle or a refraction angle of a wireless signal, etc.

[0152] For example, the antenna panel can be an RIS antenna panel or an antenna panel with an RIS function. RIS can also be described as IRS, RRS, smart surface, transmissive metasurfaces, LIM, software-controlled metasurfaces, smart reflecting array, SDS, PIS, passive massive MIMO, distributed passive massive MIMO, etc.

[0153] The first device is associated with the antenna panel, which can mean that the first device and the antenna panel are connected through physical connection or wireless connection and are integrated as a whole device, for example, as shown in FIG. 3, the RIS device, the first device is an MT in the RIS device, and the antenna panel is an RIS panel in the RIS device. Alternatively, the first device and the antenna panel can also be independent devices.

[0154] The first device can control the antenna panel to transmit and / or reflect wireless signals and / or change at least one of a transmission direction, a signal strength, a signal amplitude, a carrier frequency of a signal, a phase of a signal of a wireless signal and / or change a reflection angle or a refraction angle of a wireless signal, etc. The control signaling can be generated by the first device or from a network device or the like.

[0155] In another implementation, the first device includes an MT and an antenna panel, which can be an RIS antenna panel or an antenna panel with RIS function. In this case, the first device can also be referred to as an RIS device.

[0156] Step 902: The first network device establishes a connection with the first device.

[0157] The specific process of establishing a connection between the first network device and the first device is not limited in the present application, for example, the connection can be established through a random access process, which will not be described here.

[0158] In one implementation, after the first device completes initial access and enters an RRC connected state, it can report user type information to the first network device, for example, the user type information indicates that the user type of the first device is an RIS device or a device associated with an antenna panel; for another example, the user type information indicates that the user type of the first device is an RIS-MT, or an MT capable of controlling an RIS antenna panel, or an MT connected to an RIS antenna panel.

[0159] Optionally, the first network device determines that the user type of the first device is an RIS device or an RIS-MT or an MT capable of controlling an RIS antenna panel or an MT connected to an RIS antenna panel, and can send first signaling to the first device. The first signaling can indicate that the first device reports panel information of the antenna panel. The first signaling can be high-layer signaling or physical-layer signaling, which is not limited in the present application.

[0160] Step 903: The first device sends first indication information.

[0161] Correspondingly, the first network device receives the first indication information.

[0162] The first indication information is used to feed back whether the first device is suitable for camping on the cell of the first network device; the first indication information is determined according to a first angle of arrival (AoA), and the first AoA is the AoA of receiving the first signal through the antenna panel. Correspondingly, the first network device can determine whether the first device is suitable for camping on the cell of the first network device according to the first indication information.

[0163] In one implementation, the first indication information is used to feed back that the first device camps on the cell of the first network device, for example, the first AoA is located within a first AoA angle range, and the first device can camp on the cell of the first network device.

[0164] In an implementation, the first indication information is used to feed back that the first device does not camp on the cell of the first network device. For example, the first AoA is out of the first AoA angle range, and the first device is not suitable to camp on the cell of the first network device. The first AoA angle range can be predefined or preconfigured, or the first AoA angle range can be determined according to the range of the signal transmission direction of the first network device, which is not limited in the present application. The first AoA in the first AoA angle range can mean that the orientation of the antenna panel matches the signal transmission direction of the first network device, and the first AoA out of the first AoA angle range can mean that the orientation of the antenna panel does not match the signal transmission direction of the first network device, which can be referred to the description in step 602 and will not be repeated here.

[0165] In the present application, if the first indication information is used to feed back that the first device camps on the cell of the first network device, the first network device can send control signaling to the first device, for example, the control instruction can indicate the beam information and the effective time of the beam information. The first device can control the antenna panel to reflect or transmit signals using the beam information at the effective time according to the control instruction, and the specific process will not be repeated here.

[0166] In the present application, if the first indication information is used to feed back that the first device does not camp on the cell of the first network device, the first network device can instruct the first device to re-detect the signal. In an implementation, the first network device can send second indication information to the first device, and the second indication information indicates to detect the signal in a second AoA angle range. The second AoA angle range can also be preset, which is not limited in the present application.

[0167] The first device receives the second indication information, and then detects the signal in the second AoA angle range through the antenna panel.

[0168] In implementation one, if the second signal is received through the second AoA angle in the second AoA angle range, third indication information is sent to the first network device; the third indication information indicates that the second signal is detected. Specifically, if the second signal is from the first network device, the third indication information can also indicate that the second signal from the first network device is detected. The type of the second signal is not limited, for example, it can be the first SSB.

[0169] In this implementation, it is explained that there is multipath between the signal of the first network device and the antenna panel, in which case the first device can camp in the cell of the first network device.

[0170] In a second implementation, the first network device sends third indication information to the first network device if the second signal is received through a second AoA angle in a second AoA angle range. The third indication information indicates that the second signal is detected. Specifically, if the second signal is from the second network device, the third indication information can further indicate that the second signal from the second network device is detected. For example, the third indication information can include an identifier or a cell identifier of the second network device, and the like. The type of the second signal is not limited, for example, the second signal can be a first SSB.

[0171] Optionally, in this implementation, the first network device can send fourth indication information, and the fourth indication information indicates switching to the second network device. The fourth indication information can further include system information in a cell of the second network device, and the like. The first device receives the fourth indication information, and can switch to the second network device according to the fourth indication information. The specific switching process is not limited.

[0172] Optionally, in this implementation, the first device can further send fifth indication information to a terminal device associated with the first device. The fifth indication information indicates switching to the second network device. The fifth indication information can further include system information in a cell of the second network device, and the like. The terminal device associated with the first device can be a terminal device whose distance to the first device is within a distance threshold, or a terminal device having the same motion information as the first device. For example, the first device is a vehicle-mounted device, and the terminal device is located in the first device, for example, is used by a user in the first device. In this case, the terminal device can be associated with the first device.

[0173] The fifth indication information can further indicate a first time. The fifth indication information indicates switching to the second network device after the first time, that is, the first time is a waiting time for the terminal device to switch to the second network device. The start time of the first time can be the time of receiving the fifth indication information, which is not limited in the present application. The first time can also be predefined.

[0174] In a possible implementation, the first device can send the fifth indication information to the terminal device associated with the first device through sidelink.

[0175] Optionally, in this implementation, the first network device sends sixth indication information to the terminal device associated with the first device. The sixth indication information indicates switching to the second network device. The sixth indication information can further indicate a first time. The sixth indication information indicates switching to the second network device after the first time, that is, the first time is a waiting time for the terminal device to switch to the second network device. The start time of the first time can be the time of receiving the sixth indication information, which is not limited in the present application.

[0176] By the method provided in the present application, after camping on a cell of the first network device, whether the first device camps on the cell of the first network device is fed back through the first indication information, so that the first device performs cell handover when not camping on the cell of the first network device, thereby enabling the first device to access a suitable cell and improving the effect of cell coverage.

[0177] It can be understood that, in order to implement the functions in the above embodiments, the first device or the first network device comprises a hardware structure and / or a software module for performing each function. Those skilled in the art should easily realize that, in combination with the units and method steps of each example described in the embodiments disclosed in the present application, the present application can be realized in the form of hardware or a combination of hardware and computer software. Whether a certain function is implemented in hardware or computer software driven hardware depends on the specific application scenario and design constraints of the technical solution.

[0178] The following is a possible structure of a communication device provided by the embodiments of the present application. These communication devices can be used to implement the functions of the first device or the first network device in the above method embodiments, and thus can also achieve the beneficial effects possessed by the above method embodiments.

[0179] As shown in FIG. 10, the communication device 1000 comprises a processing unit 1010 and a communication unit 1020. The communication device 1000 is used to implement the functions of the first device or the first network device in each of the above method embodiments.

[0180] When the communication device 1000 is used to implement the functions of the first device:

[0181] a processing unit configured to determine first information; the first information is used to indicate panel information of an antenna panel, and the first information is used to determine whether the first device is suitable for camping on a cell of the first network device, and the antenna panel is used for transmitting and / or reflecting signals;

[0182] a communication unit configured to send the first information to the first network device.

[0183] When the communication device 1000 is used to implement the functions of the first network device:

[0184] a processing unit configured to establish a connection with the first device;

[0185] a communication unit configured to receive first information from the first device; the first information is used to indicate panel information of an antenna panel, and the first information is used to determine whether the first device is suitable for camping on a cell of the first network device, and the antenna panel is used for transmitting and / or reflecting signals.

[0186] When the communication device 1000 is used to implement the functions of the first device:

[0187] a processing unit, configured to receive a first signal from a first network device through a communication unit;

[0188] the processing unit is configured to send first indication information to the first network device through the communication unit, the first indication information being used to feed back whether the first device camps on a cell of the first network device; the first indication information is determined according to a first angle of arrival (AoA), the first AoA being an AoA of receiving the first signal of the first network device through an antenna panel, the antenna panel being used to transmit and / or reflect signals.

[0189] when the communication device 1000 is used to implement the function of the first network device:

[0190] a processing unit, configured to establish a connection with a first device;

[0191] a communication unit, configured to receive first indication information from the first device; the first indication information being used to feed back whether the first device camps on a cell of the first network device; the first indication information being determined according to a first angle of arrival (AoA), the first AoA being an AoA of receiving a first signal of the first network device through an antenna panel, the antenna panel being used to transmit and / or reflect signals.

[0192] More detailed descriptions of the processing unit 1010 and the communication unit 1020 can be directly obtained by referring to the descriptions of the above-mentioned various method embodiments, and thus will not be repeated here.

[0193] It should be understood that the division of the units in the above device is only a logical functional division, and all or part of the units can be integrated into one physical entity, or can be physically separated. The units in the device can all be implemented in the form of being called by a processing element through software; or can all be implemented in the form of hardware; or part of the units can be implemented in the form of being called by a processing element through software, and part of the units can be implemented in the form of hardware. For example, each unit can be a separately established processing element, or can be integrated in a chip of the device, in addition, the units can also be stored in the form of programs in a memory, and the functions of the units are called and executed by a processing element of the device. In addition, all or part of the units can be integrated together, or can be independently implemented. The processing element herein can be a processor, which can be an integrated circuit with a signal processing capability. In the implementation process, each operation of the above-mentioned method or each unit can be implemented by an integrated logic circuit of hardware in the processing element, or in the form of being called by a processing element through software.

[0194] In one example, the units in any of the above apparatuses can be one or more integrated circuits configured to implement one or more of the above methods, e.g., one or more application specific integrated circuits (ASICs), or, one or more digital singnal processors (DSPs), or, one or more field programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms. In another example, when the units in the apparatuses can be implemented in the form of a processing element scheduler, the processing element can be a processor, such as a general purpose central processing unit (CPU), or other processor capable of invoking a program. In yet another example, the units can be integrated together in the form of a system-on-a-chip (SOC).

[0195] The above receiving unit is an interface circuit of the apparatus for receiving signals from other apparatuses. For example, when the apparatus is implemented in the form of a chip, the receiving unit is an interface circuit of the chip for receiving signals from other chips or apparatuses. The above transmitting unit is an interface circuit of the apparatus for transmitting signals to other apparatuses. For example, when the apparatus is implemented in the form of a chip, the transmitting unit is an interface circuit of the chip for transmitting signals to other chips or apparatuses.

[0196] As another possible product form, the terminal device or the network device of the embodiments of the present application can be implemented by a general bus architecture. For ease of illustration, refer to FIG. 11, which is a structural schematic diagram of a communication apparatus 1100 provided by the embodiments of the present application, the communication apparatus 1100 including a processor 1101 and a transceiver 1102. The communication apparatus 1100 can be a terminal device, or a chip or chip system therein; or the communication apparatus 1100 can be a network device, or a chip or module therein. FIG. 11 only shows the main components of the communication apparatus 1100. In addition to the processor 1101 and the transceiver 1102, the communication apparatus 1100 can further include a memory 1103, and an input output apparatus (not shown in the figure).

[0197] Optionally, the processor 1101 is mainly configured to process communication protocols and communication data, and control the whole communication device, execute software programs, and process data of the software programs. The memory 1103 is mainly configured to store software programs and data. The transceiver 1102 can include radio frequency circuit and antenna, and the radio frequency circuit is mainly configured to convert baseband signals and radio frequency signals and process the radio frequency signals. The antenna is mainly configured to transceive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screen, display screen, keyboard, etc., are mainly configured to receive user input data and output data to the user.

[0198] Optionally, the processor 1101, the transceiver 1102, and the memory 1103 can be connected through a communication bus.

[0199] When the communication device is powered on, the processor 1101 can read the software programs in the memory 1103, interpret and execute instructions of the software programs, and process data of the software programs. When data needs to be transmitted wirelessly, the processor 1101 processes the data to be transmitted to obtain baseband signals, and outputs the baseband signals to the radio frequency circuit. The radio frequency circuit processes the baseband signals to obtain radio frequency signals, and transmits the radio frequency signals in the form of electromagnetic waves through the antenna. When data is transmitted to the communication device, the radio frequency circuit receives radio frequency signals through the antenna, converts the radio frequency signals into baseband signals, and outputs the baseband signals to the processor 1101. The processor 1101 converts the baseband signals into data and processes the data.

[0200] In another implementation, the radio frequency circuit and the antenna can be arranged independently of the processor that performs baseband processing, for example, in a distributed scenario, the radio frequency circuit and the antenna can be arranged remotely from the communication device.

[0201] In some embodiments, in terms of hardware implementation, those skilled in the art can conceive that the above-mentioned communication device 1000 can adopt the form of the communication device 1100 shown in FIG. 11.

[0202] As an example, the functions / implementation processes of the processing unit 1010 in FIG. 10 can be realized by the processor 1101 in the communication device 1100 in FIG. 11 invoking computer execution instructions stored in the memory 1103. The functions / implementation processes of the communication unit 1020 in FIG. 10 can be realized by the transceiver 1102 in the communication device 1100 in FIG. 11.

[0203] As another possible product form, the first device or the first network equipment in the present application can adopt the constituent structure shown in FIG. 12, or include the components shown in FIG. 12. FIG. 12 is a constituent diagram of a communication device 1200 provided in the present application.

[0204] As shown in FIG. 12, the communication apparatus 1200 includes at least one processor 1201. Optionally, the communication apparatus further includes a communication interface 1202.

[0205] When the program instructions involved are executed in the at least one processor 1201, the communication apparatus 1200 can be caused to implement the method provided by any of the preceding embodiments and any possible design thereof. Alternatively, the processor 1201 is used to implement the method provided by any of the preceding embodiments and any possible design thereof by means of logic circuit or executing code instructions.

[0206] The communication interface 1202 can be used to receive program instructions and transmit them to the processor, or the communication interface 1202 can be used for the communication apparatus 1200 to communicate with other communication devices, such as interaction control signaling and / or service data, etc. For example, the communication interface 1202 can be used to receive signals from other devices outside the communication apparatus 1200 and transmit them to the processor 1201, or send signals from the processor 1201 to other communication devices outside the communication apparatus 1200.

[0207] Optionally, the communication interface 1202 can be a code and / or data read-write interface circuit, or the communication interface 1202 can be a signal transmission interface circuit between the communication processor and the transceiver, or a pin of the chip.

[0208] Optionally, the communication apparatus 1200 can further include at least one memory 1203, which can be used to store the program instructions and / or data involved. It should be noted that the memory 1203 can exist independently of the processor 1201, or can be integrated with the processor 1201. The memory 1203 can be located inside the communication apparatus 1200 or outside the communication apparatus 1200, without limitation.

[0209] Optionally, the communication apparatus 1200 can further include a power supply circuit 1204, which can be used to supply power to the processor 1201. The power supply circuit 1204 can be located in the same chip as the processor 1201, or in another chip outside the chip where the processor 1201 is located.

[0210] Optionally, the communication apparatus 1200 can further include a bus, through which various parts of the communication apparatus 1200 can be interconnected.

[0211] In some embodiments, in hardware implementation, those skilled in the art can conceive that the communication apparatus 1000 shown in FIG. 10 can adopt the form of the communication apparatus 1200 shown in FIG. 12.

[0212] As an example, the function / implementation process of the processing unit 1010 in FIG. 10 can be implemented by invoking the computer-executed instructions stored in the memory 1203 by the processor 1201 in the communication apparatus 1200 shown in FIG. 12. The function / implementation process of the communication unit 1020 in FIG. 10 can be implemented by the communication interface 1202 in the communication apparatus 1200 shown in FIG. 12.

[0213] It should be noted that the structure shown in FIG. 12 does not constitute a specific limitation on the terminal device or the network device. For example, in some other embodiments of the present application, the terminal device or the network device can include more or fewer components than those shown, or combine certain components, or split certain components, or different arrangement of components. The components shown can be implemented in hardware, software, or a combination of software and hardware.

[0214] When the communication apparatus is a terminal chip, the terminal chip implements the functions of the terminal in the method embodiments. The terminal chip receives information from other modules (such as a radio frequency module or an antenna) in the terminal, and the information is sent by the base station to the terminal; or the terminal chip sends information to other modules (such as a radio frequency module or an antenna) in the terminal, and the information is sent by the terminal to the base station.

[0215] When the communication apparatus is a base station module, the base station module implements the functions of the base station in the method embodiments. The base station module receives information from other modules (such as a radio frequency module or an antenna) in the base station, and the information is sent by the terminal to the base station; or the base station module sends information to other modules (such as a radio frequency module or an antenna) in the base station, and the information is sent by the base station to the terminal. The base station module here can be a baseband chip of the base station, or a DU or other module, and the DU here can be a DU under the open radio access network (O-RAN) architecture.

[0216] It can be understood that the processor in the embodiments of the present application can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor can be a microprocessor, or any conventional processor.

[0217] The method steps in the embodiments of the present application can be realized by hardware or by a processor executing software instructions. The software instructions can be composed of corresponding software modules, which can be stored in a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an erasable programmable read-only memory, an electrically erasable programmable read-only memory, a register, a hard disk, a mobile hard disk, a CD-ROM, or any other form of storage medium well 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. Of course, the storage medium can also be an integral part 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. Of course, the processor and the storage medium can also exist as discrete components in the base station or the terminal.

[0218] In the above embodiments, all or part of the embodiments can be realized by software, hardware, firmware, or any combination thereof. When realized by software, all or part of the embodiments can be realized in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer programs or instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are performed. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user equipment, or other programmable apparatus. The computer programs or instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another computer-readable storage medium, for example, the computer programs or instructions can be transferred from one website, computer, server, or data center to another website, computer, server, or data center through a wired or wireless manner. 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, data center, etc. that integrates one or more available media. The available medium can be a magnetic medium, for example, a floppy disk, a hard disk, a magnetic tape; an optical medium, for example, a digital video disc; or a semiconductor medium, for example, a solid-state disk. The computer-readable storage medium can be a volatile or non-volatile storage medium, or can include both volatile and non-volatile storage media.

[0219] In various embodiments of the present application, the terms and / or descriptions of different embodiments are consistent and can be referred to each other if there is no special description and logical conflict. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0220] Those skilled in the art will appreciate that embodiments of the present application can be readily used as a method, a system or a computer program product. Accordingly, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application can take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage etc.) embodying computer readable program code.

[0221] The present application is described in reference to the flowchart illustrations and / or block diagrams of the methods, apparatus (systems) and computer program products according to the present application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processing machine, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart illustrations and / or block diagrams block or blocks.

[0222] These computer program instructions can also be stored in a computer- readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart illustrations and / or block diagrams block or blocks.

[0223] It will be obvious, however, to those having skill in the art, that changes can be made in the application without departing from the scope of the present application. Accordingly, the application is not limited by the embodiments that are described herein, but is only limited as specified by the claims that follow.

Claims

1. A communication method characterized by comprising: The method comprises: determining first information; the first information is used to indicate panel information of an antenna panel, and the first information is used to determine whether the first device is suitable for camping on a cell of a first network device, and the antenna panel is used to transmit and / or reflect signals; sending the first information to the first network device.

2. The method of claim 1, wherein, The first information is used to indicate panel information of the antenna panel, and the first information comprises: the first information comprises a first angle of arrival (AoA), and the first AoA is an AoA of a first signal received from the first network device through the antenna panel.

3. The method of claim 1, wherein, The first information is used to indicate panel information of the antenna panel, and the first information comprises: the first information comprises normal vector direction information of the antenna panel.

4. The method according to any one of claims 1 to 3, characterized in that, The method further comprises: receiving second information from the first network device, and the second information indicates that a signal is detected within a second AoA angle range; receiving a second signal through a second AoA within the second AoA angle range, and sending third information to the first network device, and the third information indicates that the second signal is detected.

5. The method of claim 4, wherein, The second signal is from a second network device, and the method further comprises: receiving fourth information from the first network device, and the fourth information indicates that switching to the second network device.

6. The method of claim 5, wherein, The method further comprises: sending fifth information to a terminal device associated with the first device, and the fifth information indicates that switching to the second network device after a first time length.

7. A communication method characterized by comprising: The method comprises: establishing a connection with a first device; receiving first information from the first device; the first information is used to indicate panel information of an antenna panel, and the first information is used to determine whether the first device is suitable for camping on a cell of a first network device, and the antenna panel is used to transmit and / or reflect signals.

8. The method of claim 7, wherein, The method further comprises: determining whether the first device is suitable for camping on a cell of a first network device according to the first information.

9. The method of claim 8, wherein, The first information comprises a first angle of arrival (AoA), and the first AoA is an AoA of a first signal received from the first network device through the antenna panel.

10. The method of claim 9, wherein, The determination of whether the first device is suitable for camping on a cell of a first network device according to the first information comprises: the first AoA is within a first AoA angle range, and it is determined that the first device is suitable for camping on the cell of the first network device; or, the first AoA is outside a first AoA angle range, and it is determined that the first device is not suitable for camping on the cell of the first network device.

11. The method of claim 8, wherein, The first information comprises normal vector direction information of the antenna panel.

12. The method of claim 11, wherein, The determination of whether the first device is suitable for camping on a cell of a first network device according to the first information comprises: obtaining position information of the antenna panel; determining that the first device is suitable for camping on the cell of the first network device according to the position information of the antenna panel and the normal vector direction information of the antenna panel, if an orientation of the antenna panel matches the first network device; or determining that the first device is not suitable for camping on the cell of the first network device according to the position information of the antenna panel and the normal vector direction information of the antenna panel, if the orientation of the antenna panel does not match the first network device.

13. The method according to any one of claims 7 to 12, characterized in that, determining that a cell of the first network device is not suitable for camping on, the method further comprising: sending second information, the second information indicating that a signal is detected within a second AoA angle range.

14. The method of claim 13, wherein, The method further comprises: receiving third information from the first device; the third information indicating that a second signal is detected; The second signal is from the first network device, and it is determined that a cell of the first network device is suitable for camping on.

15. The method of claim 13, wherein, The method further comprises: receiving third information from the first device; the third information indicating that a second signal is received; The second signal is from a second network device, and fourth information is sent, the fourth information indicating switching to the second network device.

16. The method of claim 15, wherein, The method further comprises: sending sixth information to a terminal device associated with the first device, the sixth information indicating that the terminal device switches to the second network device after a first time.

17. A method of communication, comprising: Comprising: receiving a first signal from a first network device; sending first indication information to the first network device, the first indication information being used to feed back whether the first device camps on a cell of the first network device; the first indication information is determined according to a first angle of arrival AoA, the first AoA being an AoA at which the first signal is received by an antenna panel, the antenna panel being used to transmit and / or reflect signals.

18. The method of claim 17, wherein The first AoA is within a first AoA angle range, and the first indication information is used to feed back that the first device camps on a cell of the first network device; Or, the first AoA is outside a first AoA angle range, and the first indication information is used to feed back that the first device does not camp on a cell of the first network device.

19. The method of claim 17 or 18, wherein, The first indication information is used to feed back that the first device does not camp on a cell of the first network device, and the method further comprises: receiving second indication information from the first network device, the second indication information indicating that a signal is detected within a second AoA angle range; receiving a second signal through a second AoA angle within the second AoA angle range, and sending third indication information to the first network device; the third indication information indicating that the second signal is detected.

20. The method of claim 19, wherein, The second signal is from a second network device, and the method further comprises: receiving fourth indication information from the first network device; the fourth indication information indicating switching to the second network device.

21. A method of communication, comprising: Comprising: establishing a connection with a first device; receiving first indication information from the first device; The first indication information is used to feed back whether the first device camps on a cell of a first network device; the first indication information is determined according to a first angle of arrival AoA, the first AoA being an AoA at which a first signal of the first network device is received by an antenna panel, the antenna panel being used to transmit and / or reflect signals.

22. The method of claim 21, wherein, The method further comprises: determining whether a cell of the first network device is suitable for camping on according to the first indication information.

23. The method of any one of claims 21-22, wherein, The first indication information is used to feed back that the first device does not camp on a cell of the first network device, and the method further comprises: transmitting second indication information, the second indication information indicating detecting a signal in a second AoA angle range.

24. The method of claim 23, wherein, The method further comprises: receiving third information from the first device; the third information indicating detecting a second signal; the second signal is from a second network device, transmitting fourth indication information; the fourth indication information indicating switching to the second network device; or, the second signal is from the first network device, determining that the first device is suitable to camp on a cell of the first network device.

25. A communications device, characterized by comprising: a processing unit configured to determine first information; the first information is used to indicate panel information of an antenna panel, the first information is used to determine whether a first device is suitable to camp on a cell of a first network device, the antenna panel is used to transmit and / or reflect a signal; a communication unit configured to transmit the first information to the first network device.

26. A communications device, characterized by comprising: a processing unit configured to establish a connection with a first device; a communication unit configured to receive first information from the first device; the first information is used to indicate panel information of an antenna panel, the first information is used to determine whether the first device is suitable to camp on a cell of a first network device, the antenna panel is used to transmit and / or reflect a signal.

27. A communications device, characterized by comprising: a processing unit configured to receive a first signal from a first network device through a communication unit; the processing unit is configured to transmit first indication information to the first network device through the communication unit, the first indication information is used to feed back whether a first device camps on a cell of the first network device; the first indication information is determined according to a first angle of arrival (AoA), the first AoA is an AoA of receiving the first signal of the first network device through an antenna panel, the antenna panel is used to transmit and / or reflect a signal.

28. A communications device, characterized by comprising: a processing unit configured to establish a connection with a first device; a communication unit configured to receive first indication information from the first device; the first indication information is used to feed back whether the first device camps on a cell of a first network device; the first indication information is determined according to a first angle of arrival (AoA), the first AoA is an AoA of receiving a first signal of the first network device through an antenna panel, the antenna panel is used to transmit and / or reflect a signal.

29. A communications device, characterized by comprising a processor; the processor is configured to execute a computer program or instructions stored in a memory, so that the communication device implements the method of any one of claims 1 to 24.

30. A computer program product, characterised in that, When the computer reads and executes the computer program product, the method as claimed in any one of claims 1 to 24 is executed.

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