Communication method and communication device

Abstract

A communication method and a communication device, the method being applicable to the field of communications, the method comprising: determining first antenna layout information, the first antenna layout information comprising: position coordinates of a plurality of array elements in a one-dimensional antenna array element layout and shape information of a two-dimensional antenna array element layout, the shape information is used for indicating the array element position in the two-dimensional antenna array element layout; and sending the first antenna layout information. According to the method, the antenna resources for sensing can be effectively saved, and the overhead of air interface transmission is saved.

Description

Technical Field

[0001] The present application relates to the field of communications, and more specifically, to a communication method and a communication device. Background Art

[0002] With the development and progress of communication technology, in future cellular networks, base stations will not only be able to connect people and things, but will also have perception functions. The enabling technology that realizes the coexistence, mutual assistance and mutual benefit of communication and perception functions is called communication and perception integration. Communication and perception integration enables a single base station system to integrate communication and perception functions. Communication and perception will share the same hardware resources. Taking antenna resources as an example, the number of array elements of a large multi-input multi-output (MIMO) array antenna can reach 32×32. How to allocate antenna resources for communication and perception will directly affect the performance of communication and perception integration.

[0003] At present, the antennas in the base station are often densely arranged at intervals of half the wavelength λ of the received signal, but this interval is not necessary for the perception task. Therefore, if the antenna port for perception is not selected for the specific application scenario, but a dense antenna array is used for perception, it will cause a waste of antenna resources. In addition, if sparsely arranged antennas can meet the measurement indicators, the cost of resource occupation can be reduced. However, the current solution of selecting antenna ports for perception based on application scenarios has the problem of high air interface transmission overhead, which needs to be solved urgently. Summary of the invention

[0004] The present application provides a communication method and a communication device, which can effectively save antenna resources used for sensing and save air interface transmission overhead.

[0005] In a first aspect, a communication method is provided, which is used to measure a node, and the method includes: determining first antenna layout information, the first antenna layout information including: position coordinates of multiple array elements in a one-dimensional antenna array element layout and shape information of a two-dimensional antenna array element layout, the shape information is used to indicate the array element position in the two-dimensional antenna array element layout; and sending the first antenna layout information.

[0006] Optionally, the measurement node may be a monostatic measurement node or a receiving measurement node in a bistatic measurement node. Further optionally, the measurement node may be a terminal device or a network device.

[0007] Optionally, the two-dimensional antenna array element layout may be determined based on position coordinates of a plurality of array elements in the one-dimensional antenna array element layout.

[0008] In the embodiments of the present application, the measurement node may send the first antenna layout information, so as to facilitate the processing node to obtain the sensing result based on the first antenna layout information. In this way, the measurement node does not need to send the position coordinates of each element in the two-dimensional antenna element layout, which can reduce the amount of data transmitted by the measurement node, thereby saving the overhead of air interface transmission.

[0009] In combination with the first aspect, in some implementation manners of the first aspect, the two-dimensional antenna element layout includes a plurality of element arrangements with the same shape. The regions surrounded by the plurality of element arrangements have the same center point, and the ratio of the areas of the regions surrounded by the plurality of element arrangements is the square of the ratio of the position coordinates of the plurality of elements.

[0010] Among them, each element arrangement in the plurality of element arrangements can enclose a specific shape, for example, a rectangle, a square, an ellipse, a circle, etc.

[0011] Optionally, the center point of the region surrounded by the plurality of element arrangements may be the coordinate of an element in the one-dimensional antenna element layout, and this element may be an element selected or not selected for sending the sensing signal; further optionally, the coordinate of this center point is the coordinate of the center point in the one-dimensional antenna element layout, and the coordinate of this center point is the origin of coordinates.

[0012] In the embodiments of the present application, the two-dimensional antenna element layout includes a plurality of element arrangements with the same shape, and moreover, the area surrounded by the plurality of element arrangements and the position coordinates of the plurality of elements in the one-dimensional antenna element layout are in a specific proportional relationship. In this way, the one-dimensional antenna element layout can be conveniently and quickly mapped to the two-dimensional antenna element layout, so as to facilitate the measurement node to determine the first antenna layout information.

[0013] In combination with the first aspect, in some implementation manners of the first aspect, the plurality of element arrangements are a plurality of rectangular element arrangements, and the shape information includes: a first value, a first interval, and a second interval. The first value is the ratio of the side lengths of the rectangles surrounded by each matrix element arrangement in the plurality of rectangular element arrangements, the first interval is the element interval in the horizontal direction in each rectangular element arrangement, and the second interval is the element interval in the vertical direction in each rectangular element arrangement.

[0014] Optionally, the above first value, first interval, and second interval may be preset.

[0015] Optionally, the element interval in the horizontal direction may be the element interval in the x-axis direction of the two-dimensional antenna element layout, and the element interval in the vertical direction may be the element interval in the y-axis direction of the two-dimensional antenna element layout.

[0016] In the embodiments of the present application, when multiple array elements are arranged in multiple rectangular array element arrangements, the first antenna layout information sent by the measurement node may include: the position coordinates of multiple array elements in the one-dimensional antenna array element layout, a first value, a first interval, and a second interval. In this way, the measurement node does not need to send the position coordinates of each array element in the two-dimensional antenna array element layout, and the processing node can restore the position coordinates of each array element in the second antenna array element layout according to the above parameters in the first antenna layout information. In this way, the amount of data transmitted by the measurement node is relatively small, thus saving the overhead of air interface transmission.

[0017] In combination with the first aspect, in some implementation manners of the first aspect, the multiple array elements are arranged in multiple elliptical array element arrangements, and the shape information includes: a second value and a third value. The second value is the ratio of the major axis to the minor axis of the ellipse surrounded by each elliptical array element arrangement among the multiple elliptical array element arrangements, and the third value is the angular interval of the array elements in each elliptical array element arrangement relative to the center point.

[0018] Among them, the angular interval of the array elements in each elliptical array element arrangement relative to the center point being the third value can be understood as: the included angles formed by the connection lines between the array elements in each elliptical array element arrangement and the center point are all the third value.

[0019] Optionally, the above second value and third value may be preset.

[0020] In the embodiments of the present application, when multiple array elements are arranged in multiple elliptical array element arrangements, the first antenna layout information sent by the measurement node may include: the position coordinates of multiple array elements in the one-dimensional antenna array element layout, a second value, and a third value. In this way, the processing node can restore the position coordinates of each array element in the second antenna array element layout according to the above parameters in the first antenna layout information. In this way, the amount of data transmitted by the measurement node is relatively small, thus saving the overhead of air interface transmission.

[0021] In combination with the first aspect, in some implementation manners of the first aspect, the method further includes: receiving a first sensing signal according to the two-dimensional antenna array element layout, where the two-dimensional antenna array element layout is determined based on the position coordinates of multiple array elements in the one-dimensional antenna array element layout; and sending sensing data according to the first sensing signal.

[0022] Optionally, the measurement node may first generate sensing data based on the first sensing signal and then send the sensing data.

[0023] Alternatively, after generating the sensing data, the measurement node may obtain a sensing result according to the sensing data and does not need to send the sensing data.

[0024] In the embodiments of the present application, the measurement node may receive the sensing signal based on the two-dimensional antenna element layout and send the sensing data based on the sensing signal, so that the processing node can determine the sensing result according to the sensing data. Since the two-dimensional antenna element layout is determined based on the position coordinates of multiple elements in the one-dimensional element layout, in this way, the measurement node does not need to use a dense antenna array to receive the sensing signal, which can effectively save the antenna resources for sensing. Moreover, this communication method has good generalization and can be applied to different communication sensing scenarios.

[0025] In combination with the first aspect, in some implementation manners of the first aspect, before receiving the first sensing signal according to the two-dimensional antenna element layout, the method further includes: sending a second sensing signal according to the two-dimensional antenna element layout, where the first sensing signal is an echo signal corresponding to the second sensing signal.

[0026] In the embodiments of the present application, when the measurement node is a monostatic measurement node, the measurement node may obtain the first sensing signal based on the second sensing signal sent by itself and send the sensing data according to the first sensing signal. In this way, there is no need to set an additional transmitting measurement node, thus saving the cost of the communication system.

[0027] In a second aspect, a communication method is provided. This method is used for a processing node and includes: receiving one or more first antenna layout information, where the one or more first antenna layout information includes: the position coordinates of multiple elements in the one-dimensional antenna element layout and the shape information of the two-dimensional antenna element layout, and the shape information is used to indicate the element positions in the two-dimensional antenna element layout; receiving the sensing data, and processing the sensing data based on the one or more first antenna layout information.

[0028] Optionally, the processing node may be a terminal device or a network device. The processing node processes the sensing data based on one or more first antenna layout signals and can obtain a sensing result.

[0029] Optionally, the sensing result may include: a single or multiple results including ranging, angle measurement, velocity measurement, or frequency measurement (Doppler) imaging.

[0030] Optionally, the above-mentioned multiple first antenna element information may come from one or more measurement nodes. For example, two first antenna layout information may come from two measurement nodes respectively. Further optionally, one of the two measurement nodes is a transmitting measurement node and the other is a receiving measurement node.

[0031] In the embodiments of the present application, the processing node may receive sensing data and process the sensing data based on one or more first antenna layout information to obtain a sensing result. In this way, the processing node does not need to obtain the position coordinates of each element in the two-dimensional antenna element layout from the measurement node, which can reduce the amount of data transmitted by the measurement node, thereby saving the overhead of air interface transmission.

[0032] Combined with the second aspect, in some implementation manners of the second aspect, the two-dimensional antenna element layout includes a plurality of element arrangements with the same shape. The areas surrounded by the plurality of element arrangements have the same center point, and the ratio of the areas surrounded by the plurality of element arrangements is the square of the ratio of the position coordinates of the plurality of elements.

[0033] In the embodiments of the present application, the two-dimensional antenna element layout includes a plurality of element arrangements with the same shape, and moreover, the area surrounded by the plurality of element arrangements and the position coordinates of the plurality of elements in the one-dimensional antenna element layout are in a specific proportional relationship. In this way, the one-dimensional antenna element layout can be conveniently and quickly mapped to the two-dimensional antenna element layout, facilitating the processing node to determine the position coordinates of each element in the two-dimensional antenna layout based on the first antenna layout information to obtain a sensing result.

[0034] Combined with the second aspect, in some implementation manners of the second aspect, the plurality of element arrangements are a plurality of rectangular element arrangements. The shape information includes: a first value, a first interval, and a second interval. The first value is the ratio of the side lengths of the rectangles surrounded by each matrix element arrangement in the plurality of rectangular element arrangements. The first interval is the element interval in the horizontal direction in each rectangular element arrangement, and the second interval is the element interval in the vertical direction in each rectangular element arrangement.

[0035] In the embodiments of the present application, when the plurality of element arrangements are a plurality of rectangular element arrangements, the first antenna layout information received by the processing node may include: the position coordinates of the plurality of elements in the one-dimensional antenna element layout, the first value, the first interval, and the second interval. In this way, the processing node does not need to receive the position coordinates of each element in the two-dimensional antenna element layout. The processing node can restore the position coordinates of each element in the second antenna element layout according to the above parameters in the first antenna layout information. In this way, the amount of data transmitted by the measurement node is relatively small, thereby saving the overhead of air interface transmission.

[0036] Combined with the second aspect, in some implementation manners of the second aspect, the plurality of element arrangements are a plurality of elliptical element arrangements. The shape information includes: a second value and a third value. The second value is the ratio of the major axis to the minor axis of the ellipse surrounded by each elliptical element arrangement in the plurality of elliptical element arrangements, and the third value is the angular interval of the elements in each elliptical element arrangement relative to the center point.

[0037] In an embodiment of the present application, when multiple array elements are arranged in multiple elliptical array element arrangements, the first antenna layout information received by the processing node may include: the position coordinates of multiple array elements in the one-dimensional antenna array element layout, a second value, and a third value. In this way, the processing node can restore the position coordinates of each array element in the second antenna array element layout according to the above parameters in the first antenna layout information. In this way, the amount of data transmitted by the measurement node is relatively small, thus saving the overhead of air interface transmission.

[0038] In a third aspect, a communication system is provided. The communication system includes: a receiving measurement node, a transmitting measurement node, and a processing node; the receiving measurement node is configured to send the first antenna layout information and sensing data to the processing node, where the sensing data is obtained by the receiving measurement node based on the second sensing signal sent by the transmitting measurement node. The first antenna layout information includes: first position coordinate information and first shape information. The first position coordinate information is used to indicate the position coordinates of multiple array elements in the one-dimensional antenna array element layout, and the first shape information is used to indicate the array element positions in the two-dimensional antenna array element layout; the transmitting measurement node is configured to send the second antenna layout information to the processing node, where the second antenna layout information includes: second position coordinate information and second shape information. The second position coordinate information is used to indicate the position coordinates of multiple array elements in the one-dimensional antenna array element layout, and the second shape information is used to indicate the array element positions in the two-dimensional antenna array element layout; the processing node is configured to process the sensing data based on the first antenna layout information and the second antenna layout information.

[0039] Optionally, the multiple position coordinates in the one-dimensional antenna array element layout in the first position coordinate information and the second position coordinate information may be the same or different. Similarly, the array element positions in the two-dimensional antenna layout indicated by the first shape information and the second shape information may be the same or different.

[0040] In an embodiment of the present application, when the measurement node is a bistatic measurement node, the processing node may process the sensing data according to the first antenna layout information sent by the receiving measurement node and the second antenna layout information sent by the transmitting measurement node to obtain a sensing result. In this way, the amount of data transmitted by the receiving measurement node and the transmitting measurement node can be reduced, thus saving the overhead of air interface transmission.

[0041] In combination with the third aspect, in some implementation manners of the third aspect, the two-dimensional antenna array element layout is determined by multiple array element arrangements with the same shape. The regions surrounded by the multiple array element arrangements have the same center point, and the ratio of the areas of the regions surrounded by the multiple array element arrangements is the square of the ratio of the position coordinates of the multiple array elements.

[0042] In the embodiments of the present application, the two-dimensional antenna element layout includes multiple element arrangements with the same shape, and moreover, the area enclosed by the multiple element arrangements has a specific proportional relationship with the position coordinates of the multiple elements in the one-dimensional antenna element layout. In this way, the one-dimensional antenna element layout can be conveniently and quickly mapped to the two-dimensional antenna element layout, facilitating the processing node to determine the position coordinates of each element in the two-dimensional antenna layout based on the first antenna layout information to obtain the sensing result.

[0043] In combination with the third aspect, in some implementation manners of the third aspect, the multiple element arrangements are multiple rectangular element arrangements, and the first shape information includes: a first value, a first interval, and a second interval. The first value is the ratio of the side lengths of the rectangles enclosed by each matrix element arrangement in the multiple rectangular element arrangements, the first interval is the element interval in the horizontal direction in each rectangular element arrangement, and the second interval is the element interval in the vertical direction in each rectangular element arrangement.

[0044] In the embodiments of the present application, when the multiple element arrangements are multiple rectangular element arrangements, the first antenna layout information received by the processing node may include: the position coordinates of the multiple elements in the one-dimensional antenna element layout, the first value, the first interval, and the second interval. In this way, the processing node does not need to receive the position coordinates of each element in the two-dimensional antenna element layout. The processing node can restore the position coordinates of each element in the second antenna element layout according to the above parameters in the first antenna layout information. In this way, the amount of data transmitted by the measurement node is relatively small, thus saving the overhead of air interface transmission.

[0045] In combination with the third aspect, in some implementation manners of the third aspect, the multiple element arrangements are multiple elliptical element arrangements, and the first shape information includes: a second value and a third value. The second value is the ratio of the major axis to the minor axis of the ellipse enclosed by each elliptical element arrangement in the multiple elliptical element arrangements, and the third value is the angular interval of the elements in each elliptical element arrangement relative to the center point.

[0046] In the embodiments of the present application, when the multiple element arrangements are multiple elliptical element arrangements, the first antenna layout information received by the processing node may include: the position coordinates of the multiple elements in the one-dimensional antenna element layout, the second value, and the third value. In this way, the processing node can restore the position coordinates of each element in the second antenna element layout according to the above parameters in the first antenna layout information. In this way, the amount of data transmitted by the measurement node is relatively small, thus saving the overhead of air interface transmission.

[0047] In combination with a third aspect, in some implementation manners of the third aspect, the transmitting measurement node is further configured to send the second sensing signal according to the two-dimensional antenna element layout; the receiving measurement node is further configured to receive a first sensing signal according to the two-dimensional antenna element layout, where the first sensing signal is an echo signal corresponding to the second sensing signal; the receiving measurement node is further configured to determine the sensing data according to the first sensing signal.

[0048] In the embodiments of the present application, the transmitting measurement node may send a second sensing signal according to a two-dimensional antenna element layout, and the receiving measurement node may receive a first sensing signal and determine sensing data according to the two-dimensional antenna element layout. In this way, the receiving measurement node and the transmitting measurement node do not need to use a dense antenna array for sensing and interaction, and can effectively save the antenna resources for sensing.

[0049] In a fourth aspect, a communication device is provided. The device includes a processing unit and a sending unit; the processing unit is configured to determine first antenna layout information, where the first antenna layout information includes position coordinates of multiple elements in a one-dimensional antenna element layout and shape information of a two-dimensional antenna element layout, and the shape information is used to indicate the positions of the elements in the two-dimensional antenna element layout; the sending unit is configured to send the first antenna layout information.

[0050] In combination with the fourth aspect, in some implementation manners of the fourth aspect, the two-dimensional antenna element layout is determined by arranging multiple elements with the same shape, the areas enclosed by the multiple element arrangements have the same center point, and the ratio of the areas enclosed by the multiple element arrangements is the square of the ratio of the position coordinates of the multiple elements.

[0051] In combination with the fourth aspect, in some implementation manners of the fourth aspect, the multiple element arrangements are multiple rectangular element arrangements, and the shape information includes a first value, a first interval, and a second interval. The first value is the ratio of the side lengths of the rectangles enclosed by each matrix element arrangement in the multiple rectangular element arrangements, the first interval is the element interval in the horizontal direction in each rectangular element arrangement, and the second interval is the element interval in the vertical direction in each rectangular element arrangement.

[0052] In combination with the fourth aspect, in some implementation manners of the fourth aspect, the multiple element arrangements are multiple elliptical element arrangements, and the shape information includes a second value and a third value. The second value is the ratio of the major axis to the minor axis of the ellipses enclosed by each elliptical element arrangement in the multiple elliptical element arrangements, and the third value is the angular interval of the elements in each elliptical element arrangement relative to the center point.

[0053] In combination with the fourth aspect, in some implementations of the fourth aspect, the apparatus further includes: a receiving unit; the receiving unit is configured to receive a first sensing signal according to the two-dimensional antenna element layout, and the two-dimensional antenna element layout is determined based on the position coordinates of a plurality of elements in the one-dimensional antenna element layout; the transmitting unit is further configured to transmit sensing data according to the first sensing signal.

[0054] In combination with the fourth aspect, in some implementations of the fourth aspect, the transmitting unit is further configured to transmit a second sensing signal according to the two-dimensional antenna element layout, and the first sensing signal is an echo signal corresponding to the second sensing signal.

[0055] In a fifth aspect, a communication apparatus is provided, the apparatus includes: a receiving unit and a processing unit; the receiving unit is configured to receive one or more first antenna layout information, and the one or more first antenna layout information includes: the position coordinates of a plurality of elements on the one-dimensional antenna element layout and the shape information of the two-dimensional antenna element layout, and the shape information is used to indicate the positions of the elements in the two-dimensional antenna element layout; the processing unit is configured to receive sensing data and process the sensing data based on the one or more first antenna layout information.

[0056] In combination with the fifth aspect, in some implementations of the fifth aspect, the two-dimensional antenna element layout is determined by arranging a plurality of elements with the same shape, the regions surrounded by the plurality of element arrangements have the same center point, and the ratio of the areas of the regions surrounded by the plurality of element arrangements is the square of the ratio of the position coordinates of the plurality of elements.

[0057] In combination with the fifth aspect, in some implementations of the fifth aspect, the plurality of element arrangements are a plurality of rectangular element arrangements, and the shape information includes: a first value, a first interval, and a second interval, the first value is the side length ratio of the rectangles surrounded by each matrix element arrangement in the plurality of rectangular element arrangements, the first interval is the element interval in the horizontal direction in each rectangular element arrangement, and the second interval is the element interval in the vertical direction in each rectangular element arrangement.

[0058] In combination with the fifth aspect, in some implementations of the fifth aspect, the plurality of element arrangements are a plurality of elliptical element arrangements, and the shape information includes: a second value and a third value, the second value is the ratio of the major axis to the minor axis of the ellipses surrounded by each elliptical element arrangement in the plurality of elliptical element arrangements, and the third value is the angular interval of the elements in each elliptical element arrangement relative to the center point.

[0059] In a sixth aspect, a communication apparatus is provided, including: at least one processor, configured to enable the apparatus to implement the method in any one of the implementations of the first aspect or the second aspect above.

[0060] In combination with the sixth aspect, in some implementations of the sixth aspect, the device further includes a memory, and the at least one processor is coupled to the memory for reading and executing instructions in the memory, so that the device implements the method in any one of the above-mentioned first aspect or second aspect.

[0061] In combination with the sixth aspect, in some implementations of the sixth aspect, the device further includes a communication interface, and the at least one processor is coupled to the communication interface for controlling the communication of the communication interface with other devices.

[0062] In combination with the sixth aspect, in some implementations of the sixth aspect, the communication interface is a transceiver, or an input / output interface.

[0063] The seventh aspect provides a chip, which includes a circuit for executing the method in any one of the above-mentioned first aspect or second aspect.

[0064] In combination with the seventh aspect, in some implementations of the seventh aspect, the circuit is a processing circuit or a logic circuit.

[0065] In combination with the seventh aspect, in some implementations of the seventh aspect, the chip further includes: an input / output interface, and the circuit is used to control the input / output interface to implement communication with other devices.

[0066] The eighth aspect provides a computer-readable storage medium, which stores program codes. When the computer program codes are run on a computer, the computer is caused to execute the method in any one of the above-mentioned first aspect or second aspect.

[0067] The ninth aspect provides a computer program product, which includes a computer program. When the computer program is run, the computer is caused to execute the method in any one of the above-mentioned first aspect or second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Figure 1 is a schematic diagram of the arrangement of antenna elements in an antenna panel provided by an embodiment of the present application;

[0069] Figure 2 is a schematic diagram of a sensing scenario provided by an embodiment of the present application;

[0070] Figure 3 is a schematic diagram of a sparse antenna element layout obtained based on the sensing scenario provided by an embodiment of the present application;

[0071] Figure 4It is a schematic diagram of a scenario applicable to the communication method provided by an embodiment of the present application;

[0072] Figure 5 It is another schematic diagram of a scenario applicable to the communication method provided by an embodiment of the present application;

[0073] Figure 6 It is a communication method provided by an embodiment of the present application;

[0074] Figure 7 It is a schematic diagram of a two-dimensional sparse antenna array element layout obtained by a rectangular mapping rule provided by an embodiment of the present application;

[0075] Figure 8 It is a schematic diagram of a two-dimensional sparse antenna array element layout obtained by an elliptical mapping rule provided by an embodiment of the present application;

[0076] Figure 9 It is another communication method provided by an embodiment of the present application;

[0077] Figure 10 It is a schematic diagram of a simulation scenario provided by an embodiment of the present application;

[0078] Figure 11 It is a comparison schematic diagram of perception results obtained from a dense antenna layout and a sparse antenna layout provided by an embodiment of the present application;

[0079] Figure 12 It is another communication method provided by an embodiment of the present application;

[0080] Figure 13 It is a schematic diagram of a communication device provided by an embodiment of the present application;

[0081] Figure 14 It is another schematic diagram of a communication device provided by an embodiment of the present application. Detailed implementation manners

[0082] Next, the technical solutions in the present application will be described with reference to the accompanying drawings.

[0083] In the description of the embodiments of the present application, unless otherwise specified, " / " means "or". For example, A / B may mean A or B. The "and / or" herein is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In the present application, "at least one" means one or more, and "a plurality" means two or more. "At least one (item)" or its similar expression refers to any combination of these items, including any combination of single (item) or plural items. For example, at least one (item) of a, b, or c may represent: a, b, c, a - b, a - c, b - c, or a - b - c, where a, b, c may be single or multiple.

[0084] In the embodiments of the present application, prefix words such as "first" and "second" are only used to distinguish different described objects, and have no restrictive effect on the position, order, priority, quantity, content, etc. of the described objects. The use of ordinal numbers and other prefix words for distinguishing described objects in the embodiments of the present application does not constitute a restriction on the described objects. The statement of the described objects refers to the description in the claims or the context of the embodiments, and should not constitute an unnecessary restriction due to the use of such prefix words.

[0085] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, 5th generation (5G) system, New Radio (NR), and future 6th generation (6G) system, etc.

[0086] The terminal device (user equipment, UE) in the embodiments of the present application may refer to a user equipment, an access terminal, a user unit, a user station, a mobile station, a mobile terminal, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user device. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing devices connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network, a terminal device in a future 6G network, or a terminal device in a future evolved public land mobile network (PLMN), etc. The embodiments of the present application are not limited thereto.

[0087] The network device in the embodiments of the present application can be a device for communicating with a terminal device. The network device can be a device in a radio access network (RAN) that provides wireless communication functions for the terminal device, and is called a RAN device. For example, the network device can be a base station (BS), an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation NodeB (gNB) in a 5G mobile communication system, a next generation base station in a 6th generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, etc.; it can also be a module or unit that completes part of the functions of a base station. For example, it can be a central unit (CU) or a distributed unit (DU). Here, the CU completes the functions of the radio resource control protocol and the packet data convergence protocol (PDCP) of the base station, and can also complete the function of the service data adaptation protocol (SDAP); the DU completes the functions of the radio link control layer and the medium access control (MAC) layer of the base station, and can also complete part or all of the functions of the physical layer. For specific descriptions of the above various protocol layers, reference can be made to the relevant technical specifications of the 3rd generation partnership project (3GPP). The network device can be a macro base station, a micro base station or an indoor station, and can also be a relay node or a donor node, etc. The embodiments of the present application do not limit the specific technologies and specific device forms adopted by the network device.

[0088] In another possible scenario, multiple RAN nodes cooperate to assist a terminal in achieving wireless access, and different RAN nodes respectively implement partial functions of a base station. For example, the RAN node can be a CU, a DU, a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and the DU can be separately provided, or can also be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, such as included in a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0089] In different systems, the CU (or CU-CP and CU-UP), the DU, or the RU may also have different names, but those skilled in the art can understand their meanings. For example, in an open radio access network (ORAN) system, the CU can also be called an O-CU (open CU), the DU can also be called an O-DU, the CU-CP can also be called an O-CU-CP, the CU-UP can also be called an O-CU-UP, and the RU can also be called an O-RU. For ease of description, in this application, the CU, CU-CP, CU-UP, DU, and RU are used as examples for description. Any one of the CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0090] In the embodiments of this application, the functions of the network device can also be executed by a module (such as a chip) in the network device, or can also be executed by a control subsystem including the functions of the network device. The control subsystem including the functions of the network device here can be a control center in the above application scenarios such as a smart grid, industrial control, intelligent transportation, and smart city. The functions of the terminal device can also be executed by a module (such as a chip or a modem) in the terminal device, or can also be executed by a device including the functions of the terminal device.

[0091] To facilitate the understanding of the embodiments of this application, first, a brief introduction to the concepts and technologies involved in the application embodiments is made.

[0092] (1) Sensing, also known as wireless sensing, refers to sending electromagnetic energy into space. By receiving the radio waves reflected by objects existing in the space, the information of the objects can be calculated. For example, parameters such as position, direction, height, speed, size, and movement path can be obtained, and the internal and external shapes and structures of the objects can be detected. By exploring the transmission, echo, reflection, and scattering of radio waves, the physical world can be sensed and better understood. As one of the electromagnetic wave sensing technologies, wireless sensing technology can be an important alternative technology for security inspections, detecting hidden objects, environmental reconstruction, and monitoring due to its penetrability and security.

[0093] The following introduces the technical problems to be solved by this application and the technical solutions adopted.

[0094] With the development and progress of communication technologies, in future cellular networks, base stations will not only be able to achieve the interconnection of people and things but also possess sensing capabilities. The enabling technology that realizes the coexistence, mutual assistance, and mutual benefit of communication and sensing functions is called communication-sensing integration. Communication-sensing integration enables a single base station system to integrate communication and sensing functions, and communication and sensing will share the same hardware resources. Taking antenna resources as an example, the number of array elements of a MIMO array antenna can reach 32×32. How to allocate the antenna resources for communication and sensing will directly affect the performance of communication-sensing integration.

[0095] Currently, as Figure 1 shown, the antenna array elements in a base station are often densely arranged at an interval of half of the received signal wavelength λ. However, this interval is not necessary for sensing tasks. That is to say, according to the characteristics and scope of the observation area, the antenna array elements can also be sparsely arranged. Therefore, if the antenna ports for sensing are not selected according to specific application scenarios but a dense antenna array is used for sensing, it will cause a waste of antenna resources. Moreover, if the measurement indicators can be satisfied by using sparsely arranged antennas, the cost of resource occupancy can be further reduced.

[0096] Currently, there are many optimization algorithms for the sparse layout of antennas. For example, genetic algorithms, simulated annealing algorithms, particle swarm algorithms, etc. can be used to obtain the sparse antenna array element layout. Figure 2 shows a method for optimizing the two-dimensional antenna array element layout based on the application scenario. In Figure 2 , the hollow circles can represent the grid positions, and the solid dots can represent the targets to be sensed; the measurement nodes can obtain the two-dimensional sparse antenna array element layout as shown in Figure 2 based on the Figure 3 scenario and measure the targets to be sensed based on this two-dimensional sparse antenna array element layout; among them, in Figure 3In the figure, the hollow circle can be used to represent the array element that is not selected for transmitting the perception signal, and the circle with the cross mark can represent the array element that is selected for transmitting the perception signal. However, this scheme of selecting the perception antenna port based on the application scenario has the problem of high transmission overhead, which needs to be solved urgently. For example, the measurement node needs to obtain the position coordinates of each array element in the two-dimensional sparse antenna array element layout in real time based on the scenario and transmit them. The processing node needs to receive the position coordinates of each array element and perform perception calculations. This processing method leads to high overhead of air interface transmission.

[0097] In an embodiment of the present application, a communication method and a communication device are provided, which can effectively save antenna resources used for sensing and save the overhead of air interface transmission.

[0098] Figure 4 It is a schematic diagram of a scenario applicable to the communication method provided in an embodiment of the present application.

[0099] like Figure 4 As shown, the application scenario may be a scenario in which a dual-base measurement node senses an environmental target (e.g., a building, a car, or a truck). In the application scenario, a processing node and two measurement nodes (including a transmit (Tx) measurement node and a receive (Rx) measurement node) may be included. The measurement node and the processing node may be a terminal device or a network device.

[0100] Figure 5 This is another scenario schematic diagram applicable to the communication method provided in the embodiment of the present application.

[0101] like Figure 5 As shown, the application scenario may be a scenario in which a single-base measurement node senses an environmental target (e.g., a building, a car, or a truck), and in this application scenario, a measurement node and a processing node may be included. The measurement node and the processing node may be a terminal device or a network device.

[0102] Figure 6 A communication method provided in an embodiment of the present application, method 600 can be applied to Figure 4 or Figure 5 In the application scenario, method 600 may include steps S601 to S603.

[0103] S601: A measurement node determines first antenna layout information.

[0104] The first antenna layout information includes: position coordinates of multiple array elements in a one-dimensional antenna array element layout and shape information of a two-dimensional antenna array element layout, where the shape information is used to indicate the array element positions in the two-dimensional antenna array element layout.

[0105] Optionally, the measurement node can be a single-base measurement node or a receiving measurement node in a bistatic measurement node. Further optionally, the measurement node can be a terminal device or a network device.

[0106] Among them, the two-dimensional antenna element layout can be determined based on the position coordinates of multiple elements in a one-dimensional antenna element layout.

[0107] In one embodiment, the two-dimensional antenna element layout includes multiple element arrangements with the same shape. The regions surrounded by the multiple element arrangements have the same center point, and the ratio of the areas of the regions surrounded by the multiple element arrangements is the square of the ratio of the position coordinates of the multiple elements. In this way, the measurement node can conveniently and quickly map the one-dimensional antenna element layout to the two-dimensional antenna element layout, thereby facilitating the measurement node to determine the first antenna layout information.

[0108] Optionally, each element arrangement in the multiple element arrangements can enclose a specific shape, such as a rectangle, a square, an ellipse, a circle, etc.

[0109] Optionally, the center point of the region surrounded by the multiple element arrangements can be the coordinate of an element in the one-dimensional antenna element layout. This element can be a selected or unselected element for transmitting sensing signals. Further optionally, the coordinate of the center point is the coordinate of the center point in the one-dimensional antenna element layout, and the coordinate of the center point is the origin of coordinates.

[0110] In one embodiment, the above-mentioned multiple element arrangements are multiple rectangular element arrangements, and the shape information includes: a first value, a first interval, and a second interval. The first value is the ratio of the side lengths of the rectangles enclosed by each matrix element arrangement in the multiple rectangular element arrangements. The first interval is the element interval in the horizontal direction in each rectangular element arrangement, and the second interval is the element interval in the vertical direction in each rectangular element arrangement.

[0111] Optionally, the above-mentioned first value, first interval, and second interval can be preset.

[0112] Optionally, the element interval in the horizontal direction can be the element interval in the x-axis direction in the two-dimensional antenna element layout, and the element interval in the vertical direction can be the element interval in the y-axis direction in the two-dimensional antenna element layout.

[0113] For example, according to the requirements of the application scenario and the element sparsity, the measurement node can first obtain the position coordinate vector P of multiple elements in the one-dimensional antenna element layout shown in (a) of Figure 7 and uniformly translate the multiple elements with the center of P x (the origin in the one-dimensional antenna element layout) as the center point, and the result can be obtained as shown in x and as shown in Figure 7The multiple rectangular element arrangements shown in (b) therein. Among them, the intervals between the elements in the x-direction and the y-direction in each element arrangement are Δ x , Δ y , and the side length ratio of each rectangular element is k. That is, the first antenna element layout information includes: P x , Δ x , Δ y and k. For the i-th element with the position coordinate P x (i) in the one-dimensional antenna element layout, after translation, a rectangular element arrangement with side lengths of P x (i) and kP x (i) can be obtained. That is to say, the ratio of the areas of the regions enclosed by the multiple matrix element arrangements is the square of the ratio of the position coordinates of the multiple elements in the one-dimensional antenna element layout.

[0114] Optionally, after obtaining the multiple matrix element arrangements shown in (b) in Figure 7 , a conformal scaling process can be performed on the multiple rectangular element arrangements, and finally the two-dimensional antenna element layout shown in (c) in Figure 7 can be obtained. Among them, the conformal scaling can change the sparsity of the multiple matrix element arrangements (increase or decrease the number of selected elements) so that the two-dimensional antenna element layout meets the requirements of actual applications. At this time, in addition to the above-mentioned Δ x , Δ y , k, and P x , the first antenna element layout information can also include the sparsity parameter S after conformal scaling.

[0115] In one embodiment, the above-mentioned multiple element arrangements are multiple elliptical element arrangements, and the shape information includes: a second value and a third value. The second value is the ratio of the major axis to the minor axis of the ellipse enclosed by each elliptical element arrangement among the multiple elliptical element arrangements, and the third value is the angular interval of the elements in each elliptical element arrangement relative to the center point.

[0116] Among them, the fact that the angular interval of the elements in each elliptical element arrangement relative to the center point is the third value can be understood as: the included angles formed by the connection lines between the elements in each elliptical element arrangement and the center point are all the third value.

[0117] Optionally, the above-mentioned second value and third value can be preset.

[0118] For example, the measurement node can, according to the requirements of the application scenario and the element sparsity, first obtain the position coordinate vector P Figure 8 of the multiple elements in the one-dimensional antenna element layout shown in (a) in x , and arrange the multiple elements with P xcentered at the center (the origin in the one - dimensional antenna element layout) for scanning (the scanning interval is Δ θ ), multiple elliptical element arrangements can be obtained. The eccentricity of the ellipse formed by each elliptical element arrangement in the multiple elliptical element arrangements can be e. For the i - th element with the position coordinate P x (i) in the one - dimensional antenna element layout, after scanning, an elliptical element arrangement with the major axis being P x (i) and the minor axis being can be obtained. The angular interval of the elements on this elliptical element arrangement is Δ θ . That is to say, the ratio of the areas of the regions enclosed by the multiple elliptical element arrangements is the square of the ratio of the position coordinates of the multiple elements in the one - dimensional antenna element layout. At this time, the first antenna element layout information includes: P x , and Δ θ .

[0119] Optionally, after obtaining the multiple elliptical element arrangements, a conformal scaling process can be performed on the multiple elliptical element arrangements to finally obtain a two - dimensional antenna element layout as shown in (b) of Figure 8 . Among them, the conformal scaling can change the sparsity of the multiple elliptical element arrangements (increase or decrease the number of selected elements) so that the two - dimensional antenna element layout meets the requirements of practical applications. At this time, in addition to the above - mentioned Δ x , Δ y , k and P x , the first antenna element layout information can also include the sparsity parameter S after conformal scaling.

[0120] In one embodiment, before step S601, the measurement node can receive a first sensing signal according to the two - dimensional antenna element layout, which is determined based on the position coordinates of multiple elements in the one - dimensional antenna element layout; and send sensing data to the processing node according to the first sensing signal. In this way, the measurement node does not need to use a dense antenna array to receive the first sensing signal, which can effectively save the antenna resources for sensing.

[0121] Optionally, the measurement node can first generate sensing data based on the first sensing signal and then send the sensing data.

[0122] Alternatively, after generating the sensing data, the measurement node can obtain a sensing result according to the sensing data without sending the sensing data.

[0123] In one embodiment, before the measurement node receives the first sensing signal according to the two-dimensional antenna element layout, the measurement node may sense the environment by sending a second sensing signal according to the two-dimensional antenna element layout, where the first sensing signal is an echo signal of the second sensing signal. In this way, there is no need to set up an additional transmitting measurement node, thus saving the cost of the communication system.

[0124] S602. The measurement node sends the first antenna layout information to the processing node.

[0125] Optionally, when the above-mentioned multiple elements are arranged in multiple rectangular element arrangements, the shape information of the two-dimensional antenna element layout may include: a first value, a first interval, and a second interval.

[0126] Optionally, when the above-mentioned multiple elements are arranged in multiple elliptical element arrangements, the shape information of the two-dimensional antenna element layout may include: a second value and a third value.

[0127] S603. The processing node processes the sensing data according to the first antenna layout information.

[0128] Optionally, before step S603, method 600 further includes: the processing node receives the sensing data sent by the measurement node.

[0129] Exemplarily, in step S603, the processing node processes the sensing data according to the first antenna layout information to obtain a sensing result.

[0130] Optionally, the sensing result may include: a single or multiple results including ranging, angle measurement, velocity measurement, or Doppler imaging.

[0131] In one embodiment, the processing node may receive multiple first antenna layout information sent by multiple measurement nodes and process the sensing data according to the multiple first antenna layout information. In this way, method 600 can be applied to different communication scenarios, making method 600 have good generalization.

[0132] For example, the two first antenna layout information may respectively come from two measurement nodes. Further optionally, one of the two measurement nodes is a transmitting measurement node and the other is a receiving measurement node.

[0133] In the embodiments of the present application, the measurement node may send the first antenna layout information, so as to facilitate the processing node to obtain a sensing result based on the first antenna layout information. In this way, the measurement node does not need to send the position coordinates of each element in the two-dimensional antenna element layout, which can reduce the amount of data transmitted by the measurement node, thereby saving the overhead of air interface transmission.

[0134] The following introduces the communication system provided by the embodiments of the present application, and this communication system can be applied toFigure 5 in the application scenario shown.

[0135] The communication system includes: a receiving measurement node, a transmitting measurement node, and a processing node; the receiving measurement node is configured to send first antenna layout information and sensing data to the processing node, where the sensing data is obtained by the receiving measurement node based on a second sensing signal sent by the transmitting measurement node, and the first antenna layout information includes: first position coordinate information and first shape information, the first position coordinate information is used to indicate the position coordinates of multiple elements in a one-dimensional antenna element layout, and the first shape information is used to indicate the element positions in a two-dimensional antenna element layout; the transmitting measurement node is configured to send second antenna layout information to the processing node, and the second antenna layout information includes: second position coordinate information and second shape information, the second position coordinate information is used to indicate the position coordinates of multiple elements in a one-dimensional antenna element layout, and the second shape information is used to indicate the element positions in a two-dimensional antenna element layout; the processing node is configured to process the sensing data based on the first antenna layout information and the second antenna layout information.

[0136] Optionally, the multiple position coordinates in the one-dimensional antenna element layout in the first position coordinate information and the second position coordinate information may be the same or different. Similarly, the element positions in the two-dimensional antenna layout indicated by the first shape information and the second shape information may be the same or different.

[0137] Optionally, the second antenna layout information may be one of the multiple first antenna layout information in method 600.

[0138] In an embodiment of the present application, when the measurement node is a bistatic measurement node, the processing node may process the sensing data according to the first antenna layout information sent by the receiving measurement node and the second antenna layout information sent by the transmitting measurement node to obtain a sensing result. In this way, the amount of data transmitted by the receiving measurement node and the transmitting measurement node can be reduced, thereby saving the overhead of air interface transmission.

[0139] In one embodiment, the two-dimensional antenna element layout includes multiple element arrangements with the same shape, the regions surrounded by the multiple element arrangements have the same center point, and the ratio of the areas of the regions surrounded by the multiple element arrangements is the square of the ratio of the position coordinates of the multiple elements. In this way, it is convenient and fast for the receiving measurement node and the transmitting measurement node to map the one-dimensional antenna element layout to the two-dimensional antenna element layout.

[0140] In one embodiment, the plurality of array elements are arranged as a plurality of rectangular array element arrangements. The first shape information includes: a first value, a first interval, and a second interval. The first value is the ratio of the side lengths of the rectangles formed by each rectangular array element arrangement in the plurality of rectangular array element arrangements. The first interval is the element interval in the horizontal direction in each rectangular array element arrangement, and the second interval is the element interval in the vertical direction in each rectangular array element arrangement.

[0141] Exemplarily, the first shape information and the second shape information may include: Δ x , Δ y and k, that is to say, the two-dimensional antenna element layout corresponding to the transmitting measurement node is the same as the two-dimensional antenna element layout corresponding to the receiving measurement node.

[0142] Exemplarily, the first shape information includes: Δ x1 , Δ y1 and k 1 , and the second shape information includes: Δ x2 , Δ y2 and k 2 , that is to say, the two-dimensional antenna element layout corresponding to the transmitting measurement node is different from the two-dimensional antenna element layout corresponding to the receiving measurement node.

[0143] In the embodiment of the present application, when the plurality of array elements are arranged as a plurality of rectangular array element arrangements, the first antenna layout information received by the processing node may include: the position coordinates of the plurality of array elements in the one-dimensional antenna element layout, the first value, the first interval, and the second interval. In this way, the processing node does not need to receive the position coordinates of each array element in the two-dimensional antenna element layout. The processing node can restore the position coordinates of each array element in the second antenna element layout corresponding to the receiving measurement node according to the above parameters in the first antenna layout information. In this way, the amount of data transmitted by the receiving measurement node is relatively small, thereby saving the overhead of air interface transmission.

[0144] In one embodiment, the plurality of array elements are arranged as a plurality of elliptical array element arrangements. The shape information includes: a second value and a third value. The second value is the ratio of the major axis to the minor axis of the ellipse formed by each elliptical array element arrangement in the plurality of elliptical array element arrangements. The third value is the angular interval of the array elements in each elliptical array element arrangement relative to the center point.

[0145] Exemplarily, the first shape information and the second shape information include: and Δ θ , that is to say, the two-dimensional antenna element layout corresponding to the transmitting measurement node is the same as the two-dimensional antenna element layout corresponding to the receiving measurement node.

[0146] Exemplarily, the first shape information includes: and Δ θ1 , and the second shape information includes: and Δ θ2 That is to say, the two-dimensional antenna element layout corresponding to the transmitting measurement node is different from the two-dimensional antenna element layout corresponding to the receiving measurement node.

[0147] In the embodiment of the present application, when multiple elements are arranged in multiple elliptical element arrangements, the first antenna layout information received by the processing node may include: the position coordinates of multiple elements in the one-dimensional antenna element layout, the second value, and the third value. In this way, the processing node can restore the position coordinates of each element in the second antenna element layout corresponding to the receiving measurement node according to the above parameters in the first antenna layout information. In this way, the amount of data transmitted by the measurement node is relatively small, thereby saving the overhead of air interface transmission.

[0148] In one embodiment, the transmitting measurement node is further configured to send a second sensing signal according to the two-dimensional antenna element layout; the receiving measurement node is further configured to receive a first sensing signal according to the two-dimensional antenna element layout, where the first sensing signal is an echo signal corresponding to the second sensing signal; the receiving measurement node is further configured to determine sensing data according to the first sensing signal.

[0149] In the embodiment of the present application, the transmitting measurement node can send a second sensing signal according to the two-dimensional antenna element layout, and the receiving measurement node can receive the first sensing signal and determine the sensing data according to the two-dimensional antenna element layout. In this way, the receiving measurement node and the transmitting measurement node do not need to use a dense antenna array for sensing and interaction, and can effectively save the antenna resources for sensing.

[0150] Figure 9 is another communication method provided by the embodiment of the present application. Method 900 can be applied to Figure 4 the scenario shown in. Method 900 can be a specific description of steps S601 to S603 in Method 600, or a specific description of the steps executed by each execution entity in the above communication system. Method 900 may include steps S901 to S909.

[0151] S901, the transmitting measurement node and the receiving measurement node map the one-dimensional antenna element layout into a two-dimensional antenna element layout according to the mapping rule.

[0152] Among them, the transmitting measurement node and the receiving measurement node can be arranged in a bistatic manner, that is, the transmitting measurement node and the receiving measurement node are separated and are not the same measurement node.

[0153] Specifically, the transmitting measurement node and the receiving measurement node can select a suitable one-dimensional antenna element layout according to the requirements of the measurement scenario and sparsity (for example, Figure 7 in (a) or Figure 8The one-dimensional antenna element layout shown in (a) in, and map the one-dimensional sparse antenna layout to a two-dimensional sparse antenna layout according to the mapping rule. Among them, the mapping rule can be Figure 7 or Figure 8 and the rectangular or elliptical mapping rules described in its text part.

[0154] S902, the transmitting measurement node sends a second sensing signal according to the two-dimensional antenna element layout.

[0155] Among them, the second sensing signal can be used to sense the environment.

[0156] S903, the receiving measurement node receives the first sensing signal according to the two-dimensional antenna element layout to form sensing data.

[0157] Among them, the first sensing signal can be the echo signal corresponding to the second sensing signal.

[0158] S904, the transmitting measurement node sends the second antenna layout information to the processing node.

[0159] Exemplarily, the second antenna layout information can be associated with the transmitting measurement node, and the second antenna layout information can include P described in method 600 x (i), Δ x , Δ y and k, or the second antenna layout information can include P described in method 600 x (i), Δ θ and e.

[0160] Optionally, the second antenna layout information can be one of the multiple first antenna layout information in method 600.

[0161] S905, the processing node receives the second antenna layout information.

[0162] S906, the receiving measurement node sends the first antenna layout information to the processing node.

[0163] Exemplarily, the first antenna layout information can be associated with the receiving measurement node, and the first antenna layout information can include P described in method 600 x (i), Δ x , Δ y and k, or the first antenna layout information can include P described in method 600 x (i), Δ θ and e.

[0164] Optionally, although the first antenna layout information and the second antenna layout information can include the same parameters, the specific values of the parameters can be different.

[0165] S907, the processing node receives the first antenna layout information.

[0166] S908, the processing node receives the sensing data sent by the measurement node.

[0167] S909, the processing node calculates the sensing result according to the first antenna layout information, the second antenna layout information, and the sensing data.

[0168] Exemplarily, the process of processing the sensing data by the standard back-projection algorithm is as follows: First, perform matched filtering on the transmitted signal data and the sensing data to obtain the multi-channel sensing data after matched filtering, where each pair of transceiver antennas forms a channel. Then, calculate the time delay τ from the imaging point (x, y, z) to any pair of transceiver antenna combinations, that is:

[0169]

[0170] In the above formula, (x T , y T , z T ) and (x R , y R , z R ) are the coordinates of the transmitting antenna and the receiving antenna respectively, and c is the speed of light.

[0171] Finally, multiply the phase compensation factor exp(j2πfτ) generated from the time delay by the multi-channel sensing data after matched filtering and perform coherent accumulation to obtain the sensing result. Among them, j is the imaginary unit, and f is the operating frequency of the communication system. The calculation accuracy of the time delay τ can be Δτ ≤ 8 / f. Considering that the operating frequency f of the communication system is generally greater than 1 GHz, that is, Δτ ≤ 8 nanoseconds, the calculation requirement for the time delay τ is very high and accurate transceiver antenna coordinates are required. Therefore, the processing node needs to obtain accurate first antenna layout information and second antenna layout information.

[0172] Optionally, the processing node processes the sensing data according to the correspondence between the second antenna layout information, the first antenna layout information, and the sensing data to obtain the sensing result.

[0173] Alternatively, the communication system may not include a processing node, and the receiving measurement node may be used to replace the function of the processing node. That is, method 900 may not execute steps S904 to S909. After the receiving measurement node forms the sensing data, it can directly calculate the sensing result based on the sensing data.

[0174] It should be understood that the purpose for the processing node to receive the first antenna layout information and the second antenna layout information is to achieve coherent processing of signals. In addition, in the context of communication-sensing integration, antenna ports are not only used for communication but also for sensing. Antenna ports used for sensing do not necessarily transmit reference signals (for example, channel state information reference signal (CSI-RS)). If the receiving end (for example, the processing node in method 900) uses CSI-RS as the reference signal for measurement, it may result in incorrect channel measurement values, which will lead to precoding failure and further affect the communication function. Therefore, the processing node also needs to receive the first antenna layout information or the second antenna layout information to avoid the above situation.

[0175] In the embodiments of the present application, in the scenario of bistatic sensing, the transmitting measurement node can transmit the second sensing signal based on the two-dimensional antenna element layout. Correspondingly, the receiving measurement node can receive the first sensing signal according to the two-dimensional antenna element layout and form sensing data. Since the two-dimensional antenna element layout is determined based on the position coordinates of multiple elements on the one-dimensional element layout, in this way, the measurement node does not need to use a dense antenna array to receive the sensing signal, which can effectively save the antenna resources used for sensing and can also save the overhead of air interface transmission.

[0176] The following combines Figure 10 and Figure 11 to specifically introduce and illustrate the technical effects achieved by method 900.

[0177] As Figure 10 shown, after two measurement nodes respectively perform sensing measurements on two buildings composed of discrete points in the area and send the sensing data to the processing node, the processing node can respectively obtain the measurement results as Figure 11 shown. Among them, the two measurement nodes respectively have a two-dimensional dense antenna layout with uniform arrangement (the interval between elements is half a wavelength, and the number of elements is 1024) and a two-dimensional antenna element layout obtained by using method 900 (which can also be called a sparse element layout, and the number of elements is 256). Figure 11 In (a) of Figure 11 is the sensing result obtained by the processing node based on the two-dimensional dense antenna layout.

[0178] Combining Figure 11 and the data in Table 1, it can be concluded that the two-dimensional antenna element layout obtained by using method 900 has similar sensing performance (similar values of reconstruction accuracy, reconstruction integrity, reconstruction discreteness, and recovery probability) to the two-dimensional dense antenna layout.

[0179] Table 1

[0180] Antenna layout Reconstruction accuracy Reconstruction integrity Reconstruction dispersion Recovery probability 1024 dense array elements 1.1093 0.5216 1.3110 0.9756 256 sparse array elements 1.2093 0.4405 1.5565 0.9762

[0181] Figure 12 Another communication method provided by an embodiment of the present application. Method 1200 can be applied to Figure 5 the scenario shown in. Method 1200 can be a specific description of steps S601 to S603 in Method 600. Method 1200 can include steps S1201 to S1207.

[0182] S1201. The measurement node maps the one-dimensional antenna element layout to a two-dimensional antenna element layout according to the mapping rule.

[0183] Among them, the measurement node can be arranged in a single base, that is, the transmitting measurement node and the receiving measurement node are co-located, and it is a measurement node.

[0184] Specifically, the measurement node can select a suitable one-dimensional antenna element layout according to the requirements of the measurement scenario and sparsity (for example, Figure 7 (a) in or Figure 8 (a) shown in the one-dimensional antenna element layout), and map the one-dimensional sparse antenna layout to a two-dimensional sparse antenna layout according to the mapping rule. Among them, the mapping rule can be Figure 7 or Figure 8 the rectangular or elliptical mapping rule described in its text part.

[0185] S1202. The measurement node sends a second sensing signal according to the two-dimensional antenna element layout, and at the same time receives the first sensing signal to form sensing data.

[0186] Among them, the second sensing signal can be used to sense the environment, and the first sensing signal can be the echo signal corresponding to the second sensing signal.

[0187] S1203. The measurement node sends the first antenna layout information to the processing node.

[0188] The first antenna layout information can include P x (i), Δ x , Δ y and k described in Method 600, or the first antenna layout information can include P x (i), Δ θ and e described in Method 600.

[0189] S1204. The processing node receives the first antenna layout information.

[0190] S1205. The measurement node sends the sensing data to the processing node.

[0191] S1206. The processing node receives the sensing data.

[0192] S1207, the processing node can calculate the sensing result according to the first antenna layout information and the sensing data.

[0193] Optionally, the processing node processes the echo data according to the correspondence between the first antenna layout information and the sensing data to obtain the sensing result.

[0194] In the embodiment of the present application, in the scenario of monostatic sensing, the measurement node can send a second sensing signal based on the two-dimensional antenna element layout and receive the first sensing signal to form sensing data. Since the two-dimensional antenna element layout is determined based on the position coordinates of multiple elements in the one-dimensional element layout, in this way, the measurement node does not need to use a dense antenna array to receive the sensing signal, which can effectively save the antenna resources for sensing and can save the overhead of air interface transmission.

[0195] The embodiment of the application also provides a device for implementing any one of the above methods, and the device includes units corresponding to the execution of each step in any one of the above methods.

[0196] Figure 13 FIG. 15 is a schematic diagram of a communication device 1300 provided by an embodiment of the present application. The device 1300 may include a receiving unit 1310, a transmitting unit 1320, and a processing unit 1330. The receiving unit 1310 is used to receive instructions and / or data, and the transmitting unit 1320 is used to transmit instructions and / or data. The receiving unit 1310 and the transmitting unit 1320 may also be referred to as a communication interface, a communication unit, or a transceiver unit. The processing unit 1330 is used to perform data processing so that the device 1300 implements the foregoing communication method.

[0197] Optionally, the device 1300 further includes a storage unit for implementing the corresponding storage function and storing the corresponding instructions and / or data.

[0198] As a design, the device 1300 can perform the actions performed by the measurement node or the receiving measurement node in the above method embodiment.

[0199] In one embodiment, the processing unit 1330 and the transmitting unit 1320; the processing unit 1330 is used to determine the first antenna layout information, and the first antenna layout information includes: the position coordinates of multiple elements in the one-dimensional antenna element layout and the shape information of the two-dimensional antenna element layout, and the shape information is used to indicate the element positions in the two-dimensional antenna element layout; the transmitting unit 1320 is used to transmit the first antenna layout information.

[0200] In a possible implementation, the two-dimensional antenna element layout includes a plurality of element arrangements with the same shape. The regions enclosed by the plurality of element arrangements have the same center point, and the ratio of the areas of the regions enclosed by the plurality of element arrangements is the square of the ratio of the position coordinates of the plurality of elements.

[0201] In a possible implementation, the plurality of element arrangements are a plurality of rectangular element arrangements. The shape information includes: a first value, a first interval, and a second interval. The first value is the ratio of the side lengths of the rectangles enclosed by each matrix element arrangement in the plurality of rectangular element arrangements. The first interval is the element interval in the horizontal direction in each rectangular element arrangement. The second interval is the element interval in the vertical direction in each rectangular element arrangement.

[0202] In a possible implementation, the plurality of element arrangements are a plurality of elliptical element arrangements. The shape information includes: a second value and a third value. The second value is the ratio of the major axis to the minor axis of the ellipses enclosed by each elliptical element arrangement in the plurality of elliptical element arrangements. The third value is the angular interval of the elements in each elliptical element arrangement relative to the center point.

[0203] In a possible implementation, the device further includes: a receiving unit 1310; the receiving unit 1310 is configured to receive a first sensing signal according to the two-dimensional antenna element layout, and the two-dimensional antenna element layout is determined based on the position coordinates of a plurality of elements in the one-dimensional antenna element layout; a transmitting unit 1320 is further configured to transmit sensing data according to the first sensing signal.

[0204] In a possible implementation, the transmitting unit 1320 is further configured to transmit a second sensing signal according to the two-dimensional antenna element layout, and the first sensing signal is an echo signal corresponding to the second sensing signal.

[0205] As a design, the device 1300 can perform the actions executed by the processing node in the above method embodiment.

[0206] In one embodiment, the device 1300 includes: a receiving unit 1310, configured to receive one or more first antenna layout information, and the one or more first antenna layout information includes: the position coordinates of a plurality of elements on the one-dimensional antenna element layout and the shape information of the two-dimensional antenna element layout, and the shape information is used to indicate the positions of the elements in the two-dimensional antenna element layout; a processing unit 1330, configured to receive sensing data and process the sensing data based on the one or more first antenna layout information.

[0207] In a possible implementation, the two-dimensional antenna element layout includes a plurality of element arrangements with the same shape. The regions enclosed by the plurality of element arrangements have the same center point, and the ratio of the areas of the regions enclosed by the plurality of element arrangements is the square of the ratio of the position coordinates of the plurality of elements.

[0208] In a possible implementation, multiple array elements are arranged in multiple rectangular array element arrangements. The shape information includes: a first value, a first interval, and a second interval. The first value is the ratio of the side lengths of the rectangles formed by each matrix array element arrangement in the multiple rectangular array element arrangements. The first interval is the interval between array elements in the horizontal direction in each rectangular array element arrangement. The second interval is the interval between array elements in the vertical direction in each rectangular array element arrangement.

[0209] In a possible implementation, multiple array elements are arranged in multiple elliptical array element arrangements. The shape information includes: a second value and a third value. The second value is the ratio of the major axis to the minor axis of the ellipse formed by each elliptical array element arrangement in the multiple elliptical array element arrangements. The third value is the angular interval of the array elements in each elliptical array element arrangement relative to the center point.

[0210] Figure 14 It is a schematic diagram of another communication device 1400 provided by an embodiment of the present application.

[0211] The device 1400 includes: a memory 1410, a processor 1420, and a communication interface 1430. Among them, the memory 1410, the processor 1420, and the communication interface 1430 are connected through an internal connection path. The memory 1410 is used to store instructions. The processor 1420 is used to execute the instructions stored in the memory 1410 to control the communication interface 1430 to obtain information, or to enable the device 1400 to implement the foregoing communication method. Optionally, the memory 1410 can be coupled to the processor 1420 through an interface or integrated with the processor 1420.

[0212] It should be noted that the above communication interface 1430 uses a transceiver device such as, but not limited to, a transceiver. The above communication interface 1430 may further include an input / output interface.

[0213] The processor 1420 stores one or more computer programs, and the one or more computer programs include instructions. When the instructions are run by the processor 1420, the device 1400 is caused to execute the communication methods in the above various embodiments.

[0214] In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware in the processor 1420 or the instructions in the form of software. The method disclosed in combination with the embodiments of the present application can be directly embodied as being executed and completed by the hardware processor, or executed and completed by the combination of the hardware and software modules in the processor. The software module can be located in a mature storage medium in the art such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, register, etc. This storage medium is located in the memory 1410, and the processor 1420 reads the information in the memory 1410 and combines its hardware to complete the steps of the above method. To avoid repetition, it will not be described in detail here.

[0215] Optionally, Figure 14 the communication interface 1430 in can implement Figure 13 the receiving unit 1310 and the sending unit 1320 in, Figure 14 the processor 1420 in can implement Figure 13 the processing unit 1330 in.

[0216] The embodiments of the present application further provide a computer-readable storage medium, and the computer-readable storage medium stores program codes. When the computer program codes are run on a computer, the computer is enabled to execute any of the above Figures 6 to 12 methods.

[0217] The embodiments of the present application further provide a computer program product. The computer product includes a computer program. When the computer program is run, the computer is enabled to execute any of the above Figures 6 to 12 methods.

[0218] The embodiments of the present application further provide a chip, including: a circuit, and the circuit is used to execute any of the above Figures 6 to 12 methods.

[0219] Those of ordinary skill in the art can realize that, combining the units and algorithm steps of each example described in connection with the embodiments disclosed herein, can be implemented by electronic hardware, or by the combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0220] Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments, and will not be elaborated herein.

[0221] In several embodiments provided by this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections between each other can be through some interfaces. The indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms.

[0222] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0223] In addition, in each embodiment of this application, each functional unit can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit.

[0224] If the above functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art or part of this technical solution can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of this application. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs that can store program codes.

[0225] As described above, it is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application can easily think of changes or substitutions, which should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

1. A communication method, characterized in that, the method is used for a measurement node, and the method includes: determining first antenna layout information, where the first antenna layout information includes: position coordinates of multiple elements in a one-dimensional antenna element layout and shape information of a two-dimensional antenna element layout, and the shape information is used to indicate the positions of the elements in the two-dimensional antenna element layout; sending the first antenna layout information.

2. The method according to claim 1, characterized in that, the two-dimensional antenna element layout includes multiple element arrangements with the same shape, the areas surrounded by the multiple element arrangements have the same center point, and the ratio of the areas surrounded by the multiple element arrangements is the square of the ratio of the position coordinates of the multiple elements.

3. The method according to claim 2, characterized in that, the multiple element arrangements are multiple rectangular element arrangements, and the shape information includes: a first value, a first interval, and a second interval. The first value is the ratio of the side lengths of the rectangles surrounded by each matrix element arrangement in the multiple rectangular element arrangements, the first interval is the element interval in the horizontal direction in each rectangular element arrangement, and the second interval is the element interval in the vertical direction in each rectangular element arrangement.

4. The method according to claim 2, characterized in that, the multiple element arrangements are multiple elliptical element arrangements, and the shape information includes: a second value and a third value. The second value is the ratio of the major axis to the minor axis of the ellipses surrounded by each elliptical element arrangement in the multiple elliptical element arrangements, and the third value is the angular interval of the elements in each elliptical element arrangement relative to the center point.

5. The method according to any one of claims 1 to 4, characterized in that, the method further includes: receiving a first sensing signal according to the two-dimensional antenna element layout, where the two-dimensional antenna element layout is determined based on the position coordinates of multiple elements in the one-dimensional antenna element layout; sending sensing data according to the first sensing signal.

6. The method according to claim 5, characterized in that, before receiving the first sensing signal according to the two-dimensional antenna element layout, the method further includes: sending a second sensing signal according to the two-dimensional antenna element layout, and the first sensing signal is the echo signal corresponding to the second sensing signal.

7. A communication method, characterized in that, the method is used for a processing node, and the method includes: receiving one or more first antenna layout information, where the one or more first antenna layout information includes: position coordinates of multiple elements on a one-dimensional antenna element layout and shape information of a two-dimensional antenna element layout, and the shape information is used to indicate the positions of the elements in the two-dimensional antenna element layout; receiving sensing data, and processing the sensing data based on the one or more first antenna layout information.

8. The method according to claim 7, characterized in that, the two-dimensional antenna element layout includes multiple element arrangements with the same shape, the areas surrounded by the multiple element arrangements have the same center point, and the ratio of the areas surrounded by the multiple element arrangements is the square of the ratio of the position coordinates of the multiple elements.

9. The method according to claim 8, wherein, the multiple array elements are arranged as multiple rectangular array element arrangements, and the shape information includes: a first value, a first interval, and a second interval. The first value is the ratio of the side lengths of the rectangles enclosed by each rectangular array element arrangement among the multiple rectangular array element arrangements. The first interval is the interval between array elements in the horizontal direction in each rectangular array element arrangement, and the second interval is the interval between array elements in the vertical direction in each rectangular array element arrangement.

10. The method according to claim 8, wherein, the multiple array elements are arranged as multiple elliptical array element arrangements, and the shape information includes: a second value and a third value. The second value is the ratio of the major axis to the minor axis of the ellipse enclosed by each elliptical array element arrangement among the multiple elliptical array element arrangements, and the third value is the angular interval of the array elements in each elliptical array element arrangement relative to the center point.

11. A communication system, wherein, the system includes: a receiving measurement node, a transmitting measurement node, and a processing node; the receiving measurement node is configured to send first antenna layout information and sensing data to the processing node. The sensing data is obtained by the receiving measurement node based on a second sensing signal sent by the transmitting measurement node. The first antenna layout information includes: first position coordinate information and first shape information. The first position coordinate information is used to indicate the position coordinates of multiple array elements in a one-dimensional antenna array element layout, and the first shape information is used to indicate the positions of array elements in a two-dimensional antenna array element layout; the transmitting measurement node is configured to send second antenna layout information to the processing node. The second antenna layout information includes: second position coordinate information and second shape information. The second position coordinate information is used to indicate the position coordinates of multiple array elements in a one-dimensional antenna array element layout, and the second shape information is used to indicate the positions of array elements in a two-dimensional antenna array element layout; the processing node is configured to process the sensing data based on the first antenna layout information and the second antenna layout information.

12. The system according to claim 11, wherein, the two-dimensional antenna array element layout is determined by multiple array element arrangements having the same shape. The regions enclosed by the multiple array element arrangements have the same center point, and the ratio of the areas of the regions enclosed by the multiple array element arrangements is the square of the ratio of the position coordinates of the multiple array elements.

13. The system according to claim 12, wherein, the multiple array elements are arranged as multiple rectangular array element arrangements, and the first shape information includes: a first value, a first interval, and a second interval. The first value is the ratio of the side lengths of the rectangles enclosed by each rectangular array element arrangement among the multiple rectangular array element arrangements. The first interval is the interval between array elements in the horizontal direction in each rectangular array element arrangement, and the second interval is the interval between array elements in the vertical direction in each rectangular array element arrangement.

14. The system according to claim 12, wherein, The multiple array elements are arranged in multiple elliptical array element arrangements. The first shape information includes: a second value and a third value. The second value is the ratio of the major axis to the minor axis of the ellipse formed by each elliptical array element arrangement among the multiple elliptical array element arrangements. The third value is the angular interval of the array elements in each elliptical array element arrangement relative to the center point.

15. The system according to any one of claims 11 to 14, wherein, the transmitting measurement node is further configured to send the second sensing signal according to the two-dimensional antenna array element layout; the receiving measurement node is further configured to receive a first sensing signal according to the two-dimensional antenna array element layout, and the first sensing signal is an echo signal corresponding to the second sensing signal; the receiving measurement node is further configured to determine the sensing data according to the first sensing signal.

16. A communication device, wherein, the device includes: a processing unit and a transmitting unit; the processing unit is configured to determine first antenna layout information, and the first antenna layout information includes: the position coordinates of multiple array elements in a one-dimensional antenna array element layout and the shape information of a two-dimensional antenna array element layout, and the shape information is used to indicate the positions of the array elements in the two-dimensional antenna array element layout; the transmitting unit is configured to send the first antenna layout information.

17. The device according to claim 16, wherein, the two-dimensional antenna array element layout is determined by multiple array element arrangements with the same shape. The areas enclosed by the multiple array element arrangements have the same center point, and the ratio of the areas enclosed by the multiple array element arrangements is the square of the ratio of the position coordinates of the multiple array elements.

18. The device according to claim 17, wherein, the multiple array element arrangements are multiple rectangular array element arrangements, and the shape information includes: a first value, a first interval, and a second interval. The first value is the ratio of the side lengths of the rectangle formed by each matrix array element arrangement among the multiple rectangular array element arrangements. The first interval is the interval between the array elements in the horizontal direction in each rectangular array element arrangement. The second interval is the interval between the array elements in the vertical direction in each rectangular array element arrangement.

19. The device according to claim 17, wherein, the multiple array element arrangements are multiple elliptical array element arrangements, and the shape information includes: a second value and a third value. The second value is the ratio of the major axis to the minor axis of the ellipse formed by each elliptical array element arrangement among the multiple elliptical array element arrangements. The third value is the angular interval of the array elements in each elliptical array element arrangement relative to the center point.

20. The device according to any one of claims 16 to 19, wherein, the device further includes: a receiving unit; the receiving unit is configured to receive a first sensing signal according to the two-dimensional antenna array element layout, and the two-dimensional antenna array element layout is determined based on the position coordinates of multiple array elements in the one-dimensional antenna array element layout; the transmitting unit is further configured to send sensing data according to the first sensing signal.

21. The device according to claim 20, wherein, The sending unit is further configured to send a second sensing signal according to the two-dimensional antenna element layout, and the first sensing signal is an echo signal corresponding to the second sensing signal.

22. A communication device characterized in that the device includes: a receiving unit and a processing unit; The receiving unit is configured to receive one or more first antenna layout information, and the one or more first antenna layout information includes: position coordinates of a plurality of elements on a one-dimensional antenna element layout and shape information of a two-dimensional antenna element layout, and the shape information is used to indicate the positions of the elements in the two-dimensional antenna element layout; The processing unit is configured to receive sensing data and process the sensing data based on the one or more first antenna layout information.

23. The device according to claim 22, characterized in that the two-dimensional antenna element layout is determined by arranging a plurality of elements with the same shape, the regions surrounded by the plurality of element arrangements have the same center point, and the ratio of the areas of the regions surrounded by the plurality of element arrangements is the square of the ratio of the position coordinates of the plurality of elements.

24. The device according to claim 23, characterized in that the plurality of element arrangements are a plurality of rectangular element arrangements, and the shape information includes: a first value, a first interval, and a second interval, where the first value is the ratio of the side lengths of the rectangles surrounded by each matrix element arrangement in the plurality of rectangular element arrangements, the first interval is the element interval in the horizontal direction in each rectangular element arrangement, and the second interval is the element interval in the vertical direction in each rectangular element arrangement.

25. The device according to claim 23, characterized in that the plurality of element arrangements are a plurality of elliptical element arrangements, and the shape information includes: a second value and a third value, where the second value is the ratio of the major axis to the minor axis of the ellipse surrounded by each elliptical element arrangement in the plurality of elliptical element arrangements, and the third value is the angular interval of the elements in each elliptical element arrangement relative to the center point.

26. A communication device characterized in that includes: a processor and a memory, the processor is coupled to the memory and is configured to read and execute instructions in the memory to execute the method according to any one of claims 1 to 10.

27. A computer-readable storage medium characterized in that the computer-readable storage medium stores program code, and when the computer program code runs on a computer, the computer is caused to execute the method according to any one of claims 1 to 10.

28. A chip characterized in that includes: a circuit, and the circuit is configured to execute the method according to any one of claims 1 to 10.

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