Wireless communication method, beam direction acquisition system, terminal device and network device

Abstract

Provided are a wireless communication method, a beam direction acquisition system, a terminal device, and a network device. The wireless communication method includes: the terminal device sends the beam information of the terminal device to the network device; wherein the network device includes a first base station, the beam information is transmitted by the terminal device to the first base station, and the first base station is transparently transmitted to the LMF; or, the network device includes the LMF, the beam information is transmitted by the terminal device to the first base station, and the first base station is transparently transmitted to the LMF; or, the network device includes a positioning solution server, and the beam information is transmitted by the terminal device to the positioning solution server via a wireless network.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to a wireless communication method, a beam direction acquisition system, a terminal device and a network device. Background Art

[0002] The communication system provided by the related art locates the terminal device based on the transmission beam information of the base station. In some scenarios, the positioning of the terminal device based on the transmission beam information of the base station may result in inaccurate positioning. Summary of the invention

[0003] The present application provides a wireless communication method, a beam direction acquisition system, a terminal device and a network device. The following introduces various aspects involved in the present application.

[0004] In a first aspect, a wireless communication method is provided, comprising: a terminal device sends beam information of the terminal device to a network device; wherein the network device comprises a first base station, the beam information is transmitted by the terminal device to the first base station, and is transparently transmitted by the first base station to a positioning management function LMF; or, the network device comprises an LMF, the beam information is transmitted by the terminal device to the first base station, and is transparently transmitted by the first base station to the LMF; or, the network device comprises a positioning solution server, and the beam information is transmitted by the terminal device to the positioning solution server via a wireless network.

[0005] According to a second aspect, a wireless communication method is provided, comprising: a network device receives beam information of a terminal device sent by a terminal device; wherein the network device comprises a first base station, the beam information is transmitted by the terminal device to the first base station, and is transparently transmitted by the first base station to a positioning management function LMF; or, the network device comprises an LMF, the beam information is transmitted by the terminal device to the first base station, and is transparently transmitted by the first base station to the LMF; or, the network device comprises a positioning solution server, and the beam information is transmitted by the terminal device to the positioning solution server via a wireless network.

[0006] According to a third aspect, a terminal device is provided, comprising: a communication module for sending beam information of the terminal device to a network device; wherein the network device comprises a first base station, the beam information is transmitted by the terminal device to the first base station, and is transparently transmitted by the first base station to a positioning management function LMF; or, the network device comprises an LMF, the beam information is transmitted by the terminal device to the first base station, and is transparently transmitted by the first base station to the LMF; or, the network device comprises a positioning solution server, and the beam information is transmitted by the terminal device to the positioning solution server via a wireless network.

[0007] In a fourth aspect, a network device is provided, comprising: a communication module for receiving beam information of a terminal device sent by a terminal device; wherein the network device comprises a first base station, the beam information is transmitted by the terminal device to the first base station, and is transparently transmitted by the first base station to a positioning management function LMF; or, the network device comprises an LMF, the beam information is transmitted by the terminal device to the first base station, and is transparently transmitted by the first base station to the LMF; or, the network device comprises a positioning solution server, and the beam information is transmitted by the terminal device to the positioning solution server via a wireless network.

[0008] In a fifth aspect, a beam direction acquisition system is provided, which is located outside a baseband chip for wireless communication of a terminal device, and the beam direction acquisition system comprises: a beam scanning unit, used to control the antenna system of the terminal device to perform beam scanning to obtain the beam information; a communication unit, used to communicate with a positioning solution server to send the beam information to the positioning solution server; or, the communication unit is used to communicate with the baseband chip to send the beam information to a base station through the baseband chip.

[0009] In a sixth aspect, a terminal device is provided, comprising: an antenna system; a baseband chip for wireless communication; and the beam direction acquisition system as described in the fifth aspect.

[0010] In a seventh aspect, a terminal device is provided, comprising a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory so that the terminal device executes the method described in the first aspect.

[0011] In an eighth aspect, a network device is provided, comprising a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory so that the network device executes the method described in the second aspect.

[0012] In a ninth aspect, a device is provided, comprising a processor, configured to call a program from a memory so that the device executes the method described in the first aspect.

[0013] In a tenth aspect, a device is provided, comprising a processor, configured to call a program from a memory so that the device executes the method described in the second aspect.

[0014] In an eleventh aspect, a chip is provided, comprising a processor for calling a program from a memory so that a device equipped with the chip executes the method described in the first aspect.

[0015] In a twelfth aspect, a chip is provided, comprising a processor for calling a program from a memory so that a device equipped with the chip executes the method described in the second aspect.

[0016] In a thirteenth aspect, a computer-readable storage medium is provided, on which a program is stored, wherein the program enables a computer to execute the method as described in the first aspect.

[0017] In a fourteenth aspect, a computer-readable storage medium is provided, on which a program is stored, wherein the program enables a computer to execute the method described in the second aspect.

[0018] In a fifteenth aspect, a computer program product is provided, comprising a program, wherein the program enables a computer to execute the method described in the first aspect.

[0019] In a sixteenth aspect, a computer program product is provided, comprising a program, wherein the program enables a computer to execute the method as described in the first aspect.

[0020] In a seventeenth aspect, a computer program is provided, wherein the computer program enables a computer to execute the method as described in the first aspect.

[0021] In an eighteenth aspect, a computer program is provided, wherein the computer program enables a computer to execute the method described in the second aspect.

[0022] In an embodiment of the present application, the terminal device sends its own beam information to the network device, which helps to improve the positioning accuracy of the terminal device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 4 is a system architecture diagram of a communication system to which the embodiments of the present application can be applied.

[0024] Figure 2 4 is a system architecture diagram of a positioning system to which the embodiments of the present application can be applied.

[0025] Figure 3 is an example diagram of the beamforming process.

[0026] Figure 4 This is an example diagram of the direct path between the terminal device and the base station.

[0027] Figure 5 It is a flowchart of the wireless communication method provided in an embodiment of the present application.

[0028] Figure 6 It is a structural diagram of a terminal device provided by an embodiment of the present application.

[0029] Figure 7 yes Figure 6 A more specific structural example diagram of the terminal device shown.

[0030] Figure 8 is based on Figure 6 The flowchart of the terminal device collecting beam information is shown.

[0031] Fig. 9 It is a structural diagram of a terminal device provided in another embodiment of the present application.

[0032] Fig.10 is based on Fig. 9 The flowchart of the terminal device collecting beam information is shown.

[0033] Fig.11 This is an example diagram of a straight-line diameter detection process provided by an embodiment of the present application.

[0034] Fig.12 This is an example diagram of a straight-line diameter detection process provided by another embodiment of the present application.

[0035] Fig.13 It is a structural diagram of a terminal device provided in another embodiment of the present application.

[0036] Fig.14 It is a structural diagram of the network device provided in an embodiment of the present application.

[0037] Fig.15 It is a schematic diagram of the structure of the device provided in the embodiment of the present application. DETAILED DESCRIPTION

[0038] Communication System

[0039] Figure 1 The wireless communication system 100 to which the embodiment of the present application can be applied may include a base station 110 and a terminal device 120. The base station 110 may be a device that communicates with the terminal device 120. The base station 110 may provide communication coverage for a specific geographical area, and may communicate with the terminal device 120 located in the coverage area.

[0040] Figure 1 One base station and two terminals are shown exemplarily. Optionally, the wireless communication system 100 may include multiple base stations and each base station may include another number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0041] Optionally, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.

[0042] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: the fifth generation (5th generation, 5G) system or new radio (new radio, NR), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), etc. The technical solutions provided by the present application can also be applied to future communication systems, such as the sixth generation mobile communication system, satellite communication system, and so on.

[0043] The terminal device in the embodiment of the present application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, and can be used to connect people, objects and machines, such as a handheld device with wireless connection function, a vehicle-mounted device, etc. The terminal device in the embodiment of the present application can be a mobile phone, a tablet computer, a laptop computer, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. Optionally, the UE can be used to act as a base station. For example, the UE can act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc. For example, a cellular phone and a car communicate with each other using a sidelink signal. The cellular phone and the smart home device communicate with each other without relaying the communication signal through the base station.

[0044] The base station in the embodiment of the present application may be a device for communicating with a terminal device, and the base station may also be referred to as an access network device or a radio access network device. The base station in the embodiment of the present application may refer to a radio access network (RAN) node (or device) that connects a terminal device to a wireless network. A base station may broadly cover various names as follows, or be replaced with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmission point (TRP), transmission point (TP), master station MeNB, secondary station SeNB, multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, base band unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station may be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof. The base station may also refer to a communication module, modem or chip used to be set in the aforementioned device or apparatus. The base station may also be a mobile switching center and a device to device D2D, vehicle-to-everything (V2X), machine-to-machine (M2M) communication device that performs the base station function, a network side device in a 6G network, and a device that performs the base station function in a future communication system. The base station may support networks with the same or different access technologies. The embodiments of the present application do not limit the specific technology and specific device form adopted by the base station.

[0045] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device that communicates with another base station.

[0046] In some deployments, the base station in the embodiments of the present application may refer to a CU or a DU, or the base station includes a CU and a DU. The gNB may also include an AAU.

[0047] Base stations and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons, and satellites in the air. The scenarios in which the base stations and terminal devices are located are not limited in the embodiments of the present application.

[0048] Positioning Technology in Communication Systems

[0049] See also Figure 2 , the communication system 100 may also include a positioning device 130. The positioning device 130 may be used to determine the location information of the terminal device. The positioning device 130 may be located in the core network. The positioning device 130 may sometimes also be referred to as a positioning server. Taking the NR system as an example, the positioning device 130 may be a location management function (LMF). Taking other communication systems as examples, the positioning device 130 may be a location management unit (LMU), a location management center (LMC) or an evolved serving mobile location center (E-SMLC). It is understandable that the positioning device 130 may also be other network elements, nodes or devices for determining the location information of the terminal device, such as a network element or node for determining the location information of the terminal device in a future communication system. The embodiment of the present application does not specifically limit the name of the positioning device.

[0050] Positioning in the communication system 100 includes uplink positioning and downlink positioning. Some communication systems (such as NR systems) perform downlink positioning based on a positioning reference signal (PRS). PRS, also known as a downlink positioning reference signal (DL-PRS), is a reference signal used for positioning functions. For example, in the downlink positioning process, the terminal device 120 can first measure the PRS sent by the serving cell and the neighboring cell (or adjacent cell), and estimate the relevant information of the positioning measurement. Then, the terminal device 120 can report the relevant information of the positioning measurement as the measurement result of the PRS to the positioning device 130. The positioning device 130 can solve the position of the terminal device 120 based on the positioning measurement related information reported by the terminal device 120, thereby obtaining the position information of the terminal device 120.

[0051] Some communication systems (such as NR systems) perform uplink positioning based on SRS. For example, during the uplink positioning process, the terminal device 120 sends an SRS. The base station 110 (the base station of the serving cell and the base station of the neighboring cell) can obtain a measurement result based on the SRS sent by the terminal. The measurement result of the SRS may include relevant information of the positioning measurement. Then, the base station 110 may send the relevant information of the positioning measurement to the positioning device 130. The positioning device 130 may solve the position of the terminal device 120 based on the relevant information of the positioning measurement reported by the base station 110, thereby obtaining the position information of the terminal device 120.

[0052] The above-mentioned related information of the positioning measurement may include one or more of the following information: time information, distance information, power information, angle information. More specifically, the related information of the positioning measurement may include one or more of the following information: time difference of arrival (TDOA), angle difference of arrival (ADOA), reference signal receive power (RSRP), etc.

[0053] Beamforming System

[0054] The terminal equipment of some communication systems (such as NR systems) has a beamforming system, which can realize the beamforming function. During downlink reception, the beamforming system can be used to receive downlink signals. For example, during downlink reception, the terminal equipment will use the beamforming system to scan the receiving beam and receive beams in different directions (or different directions). Then, the terminal equipment can select the best beam for receiving downlink signals based on the signal strength of each receiving beam. Figure 3 For example, the terminal device 120 receives the downlink beam of the base station 110A (eg Figure 3 1 and 2 in the BS 110B), and receives the downlink beam of the BS 110B (e.g. Figure 3 After the beamforming system compares the signals of each beam, the terminal device 120 finally selects beam 5 to receive the downlink signal of the base station 110A, and selects beam 6 to receive the downlink signal of the base station 110B.

[0055] Assumption of direct path between base station and terminal device

[0056] The communication systems provided by the related technologies all assume that there is a direct path (or direct reach path) between the base station and the terminal device. After the positioning device obtains the transmission beam information of the base station, it can obtain the direction of the receiving beam of the terminal device according to the direct path assumption. Figure 4For example, the direction of the transmitting beam of the base station 110 is direction 1, then based on the straight path assumption, the direction of the receiving beam of the terminal device 120 is direction 2.

[0057] In some scenarios (such as complex urban environments), there is no direct path between the base station and the terminal device, or the direct path between the base station and the terminal device is not the signal transmission path with the highest power. Therefore, the direction of the receiving beam of the terminal device determined by the positioning device based on the direct path assumption may not match the actual situation, which will reduce the positioning accuracy of the communication system.

[0058] In addition, as mentioned above, during the positioning process, the positioning device will obtain the transmission beam information of the base station from the base station. However, in some cases, the positioning device may not be able to obtain this information. For example, if the positioning device is not a device provided by the operator, the positioning device may not be able to obtain the transmission beam information from the base station. If the positioning device cannot obtain the transmission beam information of the base station, it may also cause positioning failure or affect positioning accuracy.

[0059] In order to solve one or more of the above problems, the embodiments of the present application are described in detail below.

[0060] Figure 5 It is a schematic flowchart of the wireless communication method provided in an embodiment of the present application. Figure 5 The method can be executed by a terminal device and a network device.

[0061] See also Figure 5 In step S510, the terminal device sends beam information of the terminal device to the network device.

[0062] In some embodiments, the network device may include a first base station. The first base station may be any base station that provides access services to the terminal device. As an example, the first base station may be a gNB. Further, in some embodiments, after the first base station receives the beam information of the terminal device, it may transmit the beam information to the positioning device (for example, the first base station may transmit the beam information of the terminal device to the positioning device by transparent transmission). The positioning device may be located in the core network. Taking the NR system as an example, the positioning device may be an LMF. Taking other communication systems as an example, the positioning device may be an LMU, an LMC or an E-SMLC.

[0063] In some embodiments, the network device may include a positioning device. The positioning device may be located in the core network. Taking the NR system as an example, the positioning device may be an LMF. Taking other communication systems as examples, the positioning device may be an LMU, an LMC or an E-SMLC. It is understandable that the positioning device may also be other network elements, nodes or devices for determining the location information of the terminal device, such as a network element or node for determining the location information of the terminal device in a future communication system, or an independently deployed positioning device specifically for position resolution. The embodiment of the present application does not specifically limit the name of the positioning device, for example, it may also be referred to as a positioning server or a positioning resolution server.

[0064] The beam information of the terminal device can be understood as the beam information used by the terminal device. For example, the beam information can indicate which beam the terminal device uses to receive the signal of the base station. For another example, the beam information can indicate which beam the terminal device uses to send a signal to the base station. The beam information can include one or more of the following: the absolute direction of the beam, the relative direction of the beam, and the sequence number of the beam. The absolute direction of the beam can indicate the angle at which the beam is offset relative to the reference absolute direction. The reference absolute direction can, for example, include one or more of the following directions: due north, due south, due west, due east, an angle offset relative to the north, an angle offset relative to the south, an angle offset relative to the west, and an angle offset relative to the east. The reference absolute direction can, for example, be predefined in the protocol, or it can be notified to the terminal device by the network device through signaling. The relative direction of the beam can refer to the offset direction of the beam relative to a baseline direction. The baseline direction can, for example, be the direction of a beam, or it can be the direction relative to the connection line between a network device and the terminal. The baseline direction can be predefined by the protocol, or it can be notified to the terminal device by the network device through signaling. The beam number may be associated with the absolute direction of the beam (or the relative direction of the beam). The association may be predefined by a protocol or notified to the terminal device by a network device through signaling. The beam information of the terminal device may include beam information for one base station or may include beam information for multiple base stations. If the beam information of the terminal device includes beam information of the terminal device for multiple base stations, the beam information of the terminal device may further indicate the correspondence between the multiple base stations and the beam information.

[0065] The terminal device can directly send the beam information of the terminal device to the network device, or it can indirectly send the beam information to the network device. Taking the network device as a base station as an example, the terminal device can use the air interface to directly send the beam information of the terminal device to the network device. Taking the network device as a positioning device in the core network as an example, the terminal device can use the communication interface between the terminal device and the positioning device to directly send the beam information of the terminal device to the positioning device, or it can indirectly report the beam information of the terminal device to the network device through the base station.

[0066] In some embodiments, the beam information of the terminal device may include the receiving beam information of the terminal device. The receiving beam information of the terminal device may include one or more of the signal strength, direction (or pointing) and width of the receiving beam of the terminal device.

[0067] In some embodiments, the direction of the receiving beam of the terminal device may include the absolute direction of the receiving beam. The absolute direction of the receiving beam of the terminal device may be obtained using a direction sensor. The direction sensor may be, for example, a compass. As an example, the terminal device may determine the direction of the receiving beam based on the position of the antenna (the direction may be the direction of the receiving beam relative to the terminal device, i.e., the direction with the terminal device as the coordinate system), and determine the true north direction based on the direction sensor. Then, the terminal device may determine the absolute direction of the receiving beam based on the direction difference between the true north direction and the direction of the receiving beam. When the terminal device sends receiving beam information to the network device, in addition to carrying the absolute direction of the receiving beam of the terminal device, it may also carry the identity (ID) of the base station corresponding to the receiving beam.

[0068] In some embodiments, the direction of the receiving beam of the terminal device may include the relative direction of the receiving beam. The relative direction of the receiving beam may indicate the direction difference between the receiving beams of the terminal device for multiple base stations. For example, the terminal device may use a certain base station as a baseline base station (i.e., use the base station as a benchmark for measuring relative direction). When determining the direction of the receiving beam, the terminal device may determine the direction difference of the receiving beam of the non-baseline base station relative to the baseline base station. This direction difference can be used as the relative direction of the receiving beam of the terminal device mentioned above. When the terminal device sends the receiving beam information to the network device, in addition to carrying the relative direction of the receiving beam of the terminal device, it may also carry the IDs of the above-mentioned baseline base station and non-baseline base station.

[0069] In some embodiments, the signal strength of the received beam of the terminal device may include one or more of the following information: reference signal receiving power (RSRP), reference signal receiving quality (RSRQ), received signal strength indicator (RSSI), and received signal level (Rxlev).

[0070] In some embodiments, the signal strength of the receiving beam of the terminal device may include the absolute signal strength of the receiving beam, and may also include the relative signal strength of the receiving beam. The relative signal strength of the receiving beam may represent the difference in signal strengths of the receiving beams of the terminal device for multiple base stations. For example, the terminal device may use a certain base station as a baseline base station (i.e., use the base station as a benchmark for measuring relative directions). When determining the direction of the receiving beam, the terminal device may determine the signal strength difference of the receiving beam of the non-baseline base station relative to the baseline base station. This signal strength difference can be used as the relative signal strength of the receiving beam of the terminal device mentioned above. When the terminal device sends the receiving beam information to the network device, in addition to carrying the relative signal strength of the receiving beam of the terminal device, it may also carry the IDs of the above-mentioned baseline base station and non-baseline base station.

[0071] In some embodiments, the beam information of the terminal device may include the transmission beam information of the terminal device. The transmission beam information of the terminal device may include one or more of the signal strength, direction (or pointing) and width of the transmission beam of the terminal device.

[0072] In some embodiments, the direction of the transmit beam of the terminal device may include the absolute direction of the transmit beam. The absolute direction of the transmit beam of the terminal device may be obtained using a direction sensor. The direction sensor may be, for example, a compass. As an example, the terminal device may determine the direction of the transmit beam based on the position of the antenna (the direction may be the direction of the transmit beam relative to the terminal device, i.e., the direction with the terminal device as the coordinate system), and determine the true north direction based on the direction sensor. Then, the terminal device may determine the absolute direction of the transmit beam based on the direction difference between the true north direction and the direction of the transmit beam. When the terminal device sends the transmit beam information to the network device, in addition to carrying the absolute direction of the transmit beam of the terminal device, it may also carry the ID of the base station corresponding to the transmit beam.

[0073] In some embodiments, the direction of the transmit beam of the terminal device may include the relative direction of the transmit beam. The relative direction of the receive beam may represent the direction difference between the transmit beams of the terminal device for multiple base stations. For example, the terminal device may use a certain base station as a baseline base station (i.e., use the base station as a benchmark for measuring relative directions). When determining the direction of the transmit beam, the terminal device may determine the direction difference of the transmit beam of the non-baseline base station relative to the baseline base station. This direction difference can be used as the relative direction of the transmit beam of the terminal device mentioned above. When the terminal device sends the transmit beam information to the network device, in addition to carrying the relative direction of the transmit beam of the terminal device, it may also carry the IDs of the above-mentioned baseline base station and non-baseline base station.

[0074] In some embodiments, the signal strength of the transmitting beam of the terminal device may include one or more of the following information: the signal strength includes RSRP, RSRQ, RSSI, and Rxlev information.

[0075] In some embodiments, the signal strength of the transmit beam of the terminal device may include the absolute signal strength of the transmit beam, and may also include the relative signal strength of the transmit beam. The relative signal strength of the transmit beam may represent the difference in signal strength of the transmit beams of the terminal device for multiple base stations. For example, the terminal device may use a certain base station as a baseline base station (i.e., use the base station as a benchmark for measuring relative directions). When determining the direction of the transmit beam, the terminal device may determine the signal strength difference of the transmit beam of the non-baseline base station relative to the baseline base station. The signal strength difference can be used as the relative signal strength of the transmit beam of the terminal device mentioned above. When the terminal device sends the transmit beam information to the network device, in addition to carrying the relative signal strength of the transmit beam of the terminal device, it may carry the IDs of the above-mentioned baseline base station and non-baseline base station.

[0076] In some embodiments, the beam information of the terminal device may be positioning information, or information used to locate the terminal device. For example, the beam information of the terminal device may be used to locate the terminal device. As another example, the beam information of the terminal device may be used to determine whether there is a direct path between the terminal device and a base station (for example, the first base station mentioned above, or other base stations). The direct path detection result may be used to locate the terminal device. Of course, in other embodiments, the direct path detection result may also be used for other purposes other than positioning.

[0077] In some embodiments, whether there is a direct path between the terminal device and the base station is determined based on a first condition, and the first condition is associated with one or more of the following information: the direction of the receiving beam of the terminal device; the direction of the transmitting beam of the base station; the width of the receiving beam of the terminal device; and the width of the transmitting beam of the base station.

[0078] In some embodiments, the first condition is associated with one or more of the following information: the difference between the direction of the receiving beam of the terminal device and the direction of the transmitting beam of the base station; and the sum of the width of the receiving beam of the terminal device and the width of the transmitting beam of the base station.

[0079] In some embodiments, the first condition includes: 180-(Δθ+Δα) / 2<=|α-θ|<=180+(Δθ+Δα) / 2, wherein α represents the direction of the receiving beam of the terminal device, θ represents the direction of the transmitting beam of the base station, Δα represents the width of the receiving beam of the terminal device, and Δθ represents the width of the transmitting beam of the base station.

[0080] In some embodiments, the first condition is associated with one or more of the following information: the difference in directions of receiving beams of the terminal device relative to multiple reference base stations (the multiple reference base stations may include the first base station mentioned above, or may not include the first base station mentioned above); the difference in directions of transmitting beams of multiple reference base stations; and the sum of the widths of the receiving beams of the terminal device relative to the multiple reference base stations.

[0081] In some embodiments, the first condition includes: |θ1-θ2|<=|α1-α2|+(Δθ1+Δθ2+Δα2+Δα1) / 2, wherein θ1 represents the direction of a transmit beam of a first reference base station among multiple reference base stations, α1 represents the direction of a receive beam of the terminal device relative to the first reference base station, Δθ1 represents the width of the transmit beam of the first reference base station, θ2 represents the direction of a transmit beam of a second reference base station among multiple reference base stations, α2 represents the direction of the receive beam of the terminal device relative to the second reference base station, Δθ1 represents the width of the transmit beam of the second reference base station, Δα1 represents the width of the receive beam of the terminal device relative to the first reference base station, and Δα2 represents the width of the receive beam of the terminal device relative to the second reference base station.

[0082] In some embodiments, when the positioning device cannot obtain the beam information of the transmit beam or receive beam of the base station (or both the positioning device and the terminal device cannot obtain the beam information of the transmit beam or receive beam of the base station), the terminal device may send the beam information of the terminal device to the positioning device. The positioning device may locate the terminal device based on the beam information of the receive beam of the terminal device. For example, if the positioning device does not belong to the operator's device, the positioning device may not be able to obtain the beam information of the transmit beam of the base station. At this time, the terminal device may report the beam information of the terminal device to the positioning device based on the communication link between the terminal device and the positioning device, so that the positioning device can locate the terminal device based on the beam information of the terminal device.

[0083] Before step S510, Figure 5The method may further include step S505, that is, the terminal device obtains beam information of the terminal device.

[0084] In some embodiments, the terminal device may acquire beam information of the terminal device based on beam scanning.

[0085] In some embodiments, the terminal device may include an antenna system and a beam direction acquisition system (or MIMO system) connected to the antenna system. The terminal device may use the beam direction acquisition system to obtain the beam information of the terminal device. For example, the terminal device may use the beam direction acquisition system (or the beam scanning unit in the beam direction acquisition system) to perform beam scanning (beam scanning can be performed by controlling the antenna direction of the antenna system), thereby obtaining beam information using the beam direction acquisition system. In addition, the above-mentioned beam direction acquisition system may also include a communication unit. The communication unit may be responsible for the communication function between the beam direction acquisition system and the outside world. For example, the communication unit may be used to wirelessly communicate with an external positioning solution server; or, the communication unit may be used to communicate with the baseband chip of the terminal device to send the beam information of the terminal device to the base station through the baseband chip, or the baseband chip may use the beam information of the terminal device to perform positioning, direct path judgment and other processing. The base station may transparently transmit the beam information to the LMF. The communication unit may, for example, be a communication interface capable of communicating with a baseband chip, or a wireless communication component capable of independently performing wireless communication.

[0086] As an example, the beam direction acquisition system (or the beam scanning unit in the beam direction acquisition system) may include an antenna direction control system and an antenna direction adjustment system. The antenna direction control system may determine the antenna direction adjustment value of the antenna system according to the measurement result of the received signal of the antenna system. The antenna direction adjustment system may adjust the antenna direction of the antenna system according to the antenna direction adjustment value during the beam scanning process. There are many ways to implement the antenna direction adjustment system. For example, a reflector is provided in each antenna in the antenna system of the terminal device. By adding a transmitting plate, the receiving sensitivity of the antenna signal can be improved, and at the same time, other radio waves from the back of the reflector can be blocked and shielded, thereby reducing the interference to the antenna. The antenna direction can be adjusted by adjusting the angle of the reflector. The change in the angle of the reflector allows the terminal device to receive or send signals in different directions, thereby realizing directional reception or transmission of the terminal device. The receiving antenna of the terminal device continuously adjusts its direction to realize receiving beam scanning. There are many ways to change the angle of the reflector. For example, the antenna system can be placed on a rotating table and rotated at an angle at intervals. By recording the angle of rotation of the rotating platform between two measurements, the angle information of the receiving antenna between the two measurements can be obtained, thereby realizing beam scanning and measurement. For another example, the antenna direction adjustment system can also use a phase modulation system (such as a phase shifter) using an antenna array to adjust the antenna direction.

[0087] In some embodiments, the beam direction acquisition system may send the beam information to a baseband chip, and send the beam information to a network device through the baseband chip.

[0088] In some embodiments, the terminal device can use a device outside the baseband chip to obtain the beam information of the terminal device. For example, the terminal device can set a beam direction acquisition system outside the baseband chip. Then, the terminal device can use the beam direction acquisition system to perform beam scanning to obtain the beam information of the terminal device. The beam direction acquisition system is set outside the baseband chip, and is not controlled by the baseband chip, so that even if the baseband chip does not provide or support the receiving beam direction interface, the terminal device can obtain the beam direction information. The beam direction acquisition system can communicate with the baseband chip through an internal communication unit, thereby sending the collected beam information to the LMF. Alternatively, the beam direction acquisition system can use the internal communication unit to send the beam information directly to the positioning solution server through a wireless network. Alternatively, the beam direction acquisition system can communicate with the baseband chip through an internal communication unit, thereby sending the collected beam information to the positioning solution server.

[0089] During the beam scanning process of the receiving beam of the terminal device, the terminal device needs to measure the received signal of the antenna system. The measurement of the received signal may refer to the measurement of the power information and / or interference information of the received signal. For example, the terminal device may measure one or more of the following indicators of the received signal: RSSI, RSRP, RSRQ, signal to interference plus noise ratio (SINR). In some embodiments, the measurement result may also include the direction information of the terminal device, such as the absolute direction of the terminal device or the direction difference of the terminal device relative to a certain direction (such as the north direction). There are many ways for the terminal device to measure the received signal. For example, the terminal device can use the baseband chip to measure the received signal of the antenna system. For another example, the terminal device can use the beam direction acquisition system outside the baseband chip mentioned above to measure the received signal of the antenna system.

[0090] Combined with the following Figures 6 to 8 , giving a possible way to obtain the beam information of the terminal device. Figure 6 A possible structure of a terminal device is shown. Figure 6 The terminal device may include a baseband chip, a beam direction acquisition system and an antenna system. The beam direction acquisition system is located outside the baseband chip. The beam direction acquisition system includes an antenna direction control system and an antenna direction adjustment system. Figure 7 An example of the internal structure of the antenna direction control system is further shown. Figure 7 The antenna direction control system may further include a direction scanning system and a receiving beam direction (also referred to as user direction) determination system.

[0091] Figure 8 The shown is based on Figure 6 The flowchart of the terminal device collecting beam information is shown. Figure 8 Including step S810 to step S850, the following Figure 8 Each step is described in detail.

[0092] In step S810, the antenna system receives a signal.

[0093] In step S820, the baseband chip measures the received signal to obtain a measurement result. The measurement result may be, for example, measured power information. The baseband chip may send the measurement result to the antenna direction control system so that the antenna control system records the measurement result and the antenna direction (or antenna angle) corresponding to the measurement result.

[0094] In step S830, the direction scanning system (see Figure 7) determines the antenna direction adjustment value and inputs the antenna direction adjustment value into the antenna direction adjustment system.

[0095] In step S840, the antenna direction adjustment system adjusts the antenna direction of the antenna system.

[0096] For example, the antenna direction adjustment system can control the rotating platform in the direction of the reflector to adjust the antenna direction of the antenna system. Alternatively, the antenna direction adjustment system can also adjust the antenna element phase modulation system to adjust the antenna direction of the antenna system.

[0097] In step S850, after the antenna direction is adjusted, the antenna system receives signals in the new antenna direction. Steps S810 to S850 are repeated until the antenna system completes beam scanning in all directions. Then, the direction of the receiving beam is determined by the system (see Figure 7 ) can determine the best receiving direction according to the power of the received signal of the antenna system in each direction as the direction of the receiving beam. Then, the antenna direction control system can send the beam information containing the receiving beam direction to the positioning device, or feed the beam information back to the baseband chip, and feed the beam information back to the base station or positioning device through the baseband chip system.

[0098] Combine the following Fig. 9 and Fig.10 , giving another possible way to obtain the beam information of the terminal device. Fig. 9 Shown is another example of the structure of the terminal device. Fig. 9 The terminal structure shown is similar to Figure 6 The structures shown are similar overall, the difference between the two mainly lies in that the antenna direction control system is directly connected to the antenna system to measure the receiving beam, rather than the baseband chip measuring the receiving beam.

[0099] Fig.10 The shown is based on Fig. 9 The flowchart of the terminal device collecting beam information is shown. Fig.10 Including step S1010 to step S1050, the following Fig.10 Each step is described in detail.

[0100] In step S1010, the antenna system receives a signal.

[0101] In step S1020, the antenna direction control system measures the received signal to obtain a measurement result.

[0102] In step S1030, the direction scanning system in the antenna direction control system determines an antenna direction adjustment value and inputs the antenna direction adjustment value into the antenna direction adjustment system.

[0103] In step S1040, the antenna direction adjustment system adjusts the antenna direction of the antenna system.

[0104] For example, the antenna direction adjustment system can control the rotating platform in the direction of the reflector to adjust the antenna direction of the antenna system. Alternatively, the antenna direction adjustment system can also adjust the antenna element phase modulation system to adjust the antenna direction of the antenna system.

[0105] In step S1050, after the antenna direction is adjusted, the antenna system receives signals in the new antenna direction. Steps S1010 to S1050 are repeated until the antenna system completes beam scanning in all directions. Then, the direction of the receiving beam is determined by the system (see Figure 7 ) can determine the best receiving direction according to the power of the received signal of the antenna system in each direction as the direction of the receiving beam. Then, the antenna direction control system can send the beam information containing the receiving beam direction to the positioning device, or feed the beam information back to the baseband chip, and feed the beam information back to the base station or positioning device through the baseband chip system.

[0106] To simplify the design, Fig.10 In the embodiment, the direction of the receiving beam can be obtained by using a phase shifter and a combiner. For example, the signals of each antenna in the antenna system can be phase shifted according to different phases, and then the phase-shifted signals of each antenna are combined, and the direction of the receiving beam is determined according to the power of the signal.

[0107] Combination of the above Figures 5 to 10 , describes in detail the process of collecting and sending the beam information of the terminal device. After receiving the beam information of the terminal device, the network device can process the beam information. The following describes in detail the way in which the network device processes the beam information in conjunction with a specific embodiment.

[0108] See again Figure 5 , in some embodiments, Figure 5 The method may further include step S515, that is, the network device determines the target information according to the beam information of the terminal device.

[0109] The target information may indicate whether there is a direct path between the terminal device and the base station. In other words, the network device may determine whether there is a direct path between the terminal device and the base station (which may be any base station that sends a beam to the terminal device) based on the beam information of the terminal device.

[0110] In some embodiments, the network device can determine whether there is a direct path between the terminal device and the base station based on the beam information of the terminal device and the beam information of the base station. Taking the network device as a positioning device in the core network as an example, the beam information of the base station can be obtained from the base station, that is, reported by the base station to the positioning device.

[0111] For example, the network device can determine the direction difference between the receiving beam of the terminal device and the transmitting beam of the base station based on the beam information of the terminal device and the beam information of the base station. If the direction difference is less than a certain threshold, it can be considered that there is a direct path between the terminal device and the base station.

[0112] Combine the following Fig.11 , taking the network device as the positioning device, the beam information of the terminal device includes the absolute direction of the receiving beam of the terminal device as an example, an example of the direct path detection process is given.

[0113] like Fig.11 As shown, the positioning server obtains the direction of the base station's transmission beam relative to the terminal device reported by the base station as 135 degrees north by west. According to the direction of the transmission beam, when there is a direct path between the base station and the terminal device, the direction of the terminal device's receiving beam should theoretically be in the direction of 45 degrees north by east. In actual situations, both the transmission beam and the receiving beam have a certain width. For example, if the width of the base station's transmission beam is 30 degrees, then when the direction of the receiving beam reported by the terminal device is centered at 45 degrees north by east and offset by 15 degrees to the left or right, it can be considered that there is a direct path between the terminal device and the base station. Similarly, if the beam of the terminal device also has a certain width, such as the beam width of the terminal device is 30 degrees, it can be considered that when the direction of the terminal device's receiving beam is centered at 45 degrees north by east and offset by 30 degrees to the left or right, it can be considered that there is a direct path between the terminal device and the base station.

[0114] As an example, assuming that the direction angle of the transmitting beam reported by the base station is θ and the beam width is Δθ, and the direction of the receiving beam reported by the terminal device is α and the beam width is Δα, then when the following equation is satisfied, it can be considered that there is a direct path between the base station and the terminal device: 180-(Δθ+Δα) / 2<=|α-θ|<=180+(Δθ+Δα) / 2.

[0115] Combine the following Fig.12 , taking the network device as the positioning device, where the beam information of the terminal device includes the relative direction of the receiving beam of the terminal device (that is, the direction of the receiving beam is the direction difference of the receiving beam relative to the receiving beams of the two base stations) as an example, another example of the direct path detection process is given.

[0116] like Fig.12As shown in the figure, when the beam sent by base station A to the terminal device is at 135 degrees north by west, and the beam sent by base station B to the terminal device is at 120 degrees north by west, the terminal device should receive a beam direction difference of 15 degrees for the two base stations. Considering the beam width, assuming that the beam widths of the base station and the terminal device are both 10 degrees, when the receiving beam direction difference is 35 degrees, it can be considered that there is a direct path between the two. When the working frequency band is at high frequency, the beam is narrow, and this method can be used to determine whether there is a direct path between the transmitter and the receiver.

[0117] Assume that the sending direction angle reported by base station A is θ1, the beam width is Δθ1, the receiving direction reported by the terminal device of the base station is α1, the beam width is Δα1, the sending direction angle reported by base station B is θ2, the beam width is Δθ2, the receiving direction reported by the terminal device of the base station is α2, and the beam width is Δα2. When the following formula is satisfied, it can be considered that there is a direct path between the base station and the terminal device: |θ1-θ2|<=|α1-α2|+(Δθ1+Δθ2+Δα2+Δα1) / 2

[0118] See again Figure 5 , in some embodiments, the target information may indicate the location of the terminal device. In other words, the network device may determine the location of the terminal device based on the beam information of the terminal device (i.e., estimate the location of the terminal device). For example, when the direction of the receiving beam reported by the terminal device is an absolute direction, the direction of the receiving beam and the location of the base station may be used to determine the location of the terminal device at the base station. For another example, when the direction of the receiving beam reported by the terminal device is the directional difference between the receiving beams of two base stations, if the distance between the terminal device and the base station measured by the positioning device is a range, the direction information of the receiving beam may be used to narrow the estimated range of the terminal device's location.

[0119] In some embodiments, if the terminal device needs to obtain location information, the network device can send the estimated location information to the terminal device.

[0120] Fig.13 It is a structural diagram of a terminal device provided by an embodiment of the present application. Fig.13 The terminal device 1300 may include a communication module 1310. The communication module 1310 may be used to send beam information of the terminal device to a network device; wherein the network device includes a first base station, the beam information is transmitted by the terminal device to the first base station, and is transparently transmitted by the first base station to a positioning management function LMF; or, the network device includes an LMF, the beam information is transmitted by the terminal device to the first base station, and is transparently transmitted by the first base station to the LMF; or, the network device includes a positioning solution server, and the beam information is transmitted by the terminal device to the positioning solution server via a wireless network.

[0121] Optionally, in some embodiments, the terminal device includes an antenna system and a beam direction acquisition system that are interconnected, and the beam direction acquisition system is used to control the antenna system to perform beam scanning to obtain the beam information.

[0122] Optionally, in some embodiments, the terminal device further includes a baseband chip for wireless communication, and the beam direction acquisition system is located outside the baseband chip.

[0123] Optionally, in some embodiments, the baseband chip is used to measure a received signal of the antenna system, and the beam direction acquisition system performs the beam scanning based on the measurement result of the received signal.

[0124] Optionally, in some embodiments, the beam direction acquisition system includes: an antenna direction control system, used to receive the measurement results from the baseband chip and determine the antenna direction adjustment value of the antenna system based on the measurement results; and an antenna direction adjustment system, used to adjust the antenna direction of the antenna system according to the antenna direction adjustment value during the beam scanning process.

[0125] Optionally, in some embodiments, the beam direction acquisition system is used to measure a received signal of the antenna system, and perform the beam scanning based on the measurement result of the received signal.

[0126] Optionally, in some embodiments, the beam direction acquisition system includes: an antenna direction control system, used to measure the received signal of the antenna system and determine the antenna direction adjustment value of the antenna system based on the measurement results; an antenna direction adjustment system, used to adjust the antenna direction of the antenna system according to the antenna direction adjustment value during the beam scanning process.

[0127] Optionally, in some embodiments, the beam information is sent by the beam direction acquisition system; or, the beam information is sent by the baseband chip.

[0128] Optionally, in some embodiments, the beam information includes receiving beam information of the terminal device; and / or transmitting beam information of the terminal device.

[0129] Optionally, in some embodiments, the receive beam information includes one or more of the signal strength, direction and width of the receive beam of the terminal device; and / or the transmit beam information includes one or more of the signal strength, direction and width of the transmit beam of the terminal device.

[0130] Optionally, in some embodiments, the direction of the receiving beam includes an absolute direction and / or a relative direction of the receiving beam, and the relative direction of the receiving beam represents the direction difference between the receiving beams of the terminal device for multiple base stations.

[0131] Optionally, in some embodiments, the beam information is used to determine whether there is a direct path between the terminal device and the base station; and / or the beam information is used to locate the terminal device.

[0132] Optionally, in some embodiments, whether there is a direct path between the terminal device and the base station is determined based on a first condition, and the first condition is associated with one or more of the following information: the direction of the receiving beam of the terminal device; the direction of the transmitting beam of the base station; the width of the receiving beam of the terminal device; and the width of the transmitting beam of the base station.

[0133] Optionally, in some embodiments, the first condition is associated with one or more of the following information: the difference between the direction of the receiving beam of the terminal device and the direction of the transmitting beam of the base station; and the sum of the width of the receiving beam of the terminal device and the width of the transmitting beam of the base station.

[0134] Optionally, in some embodiments, the first condition includes: 180-(Δθ+Δα) / 2<=|α-θ|<=180+(Δθ+Δα) / 2, wherein α represents the direction of the receiving beam of the terminal device, θ represents the direction of the transmitting beam of the base station, Δα represents the width of the receiving beam of the terminal device, and Δθ represents the width of the transmitting beam of the base station.

[0135] Optionally, in some embodiments, the first condition is associated with one or more of the following information: the difference in directions of receiving beams of the terminal device relative to multiple reference base stations; the difference in directions of transmitting beams of the multiple reference base stations; and the sum of the widths of the receiving beams of the terminal device relative to the multiple reference base stations.

[0136] Optionally, in some embodiments, the first condition includes: |θ1-θ2|<=|α1-α2|+(Δθ1+Δθ2+Δα2+Δα1) / 2, wherein θ1 represents the direction of a transmit beam of a first reference base station among the multiple reference base stations, α1 represents the direction of a receive beam of the terminal device relative to the first reference base station, Δθ1 represents the width of a transmit beam of the first reference base station, θ2 represents the direction of a transmit beam of a second reference base station among the multiple reference base stations, α2 represents the direction of a receive beam of the terminal device relative to the second reference base station, Δθ1 represents the width of the transmit beam of the second reference base station, Δα1 represents the width of the receive beam of the terminal device relative to the first reference base station, and Δα2 represents the width of the receive beam of the terminal device relative to the second reference base station.

[0137] Fig.14 It is a structural diagram of a network device provided by an embodiment of the present application. Fig.14 The network device 1400 includes a communication module 1410. The communication module 1410 can be used to receive beam information of the terminal device sent by the terminal device; wherein the network device includes a first base station, the beam information is transmitted by the terminal device to the first base station, and is transparently transmitted by the first base station to the positioning management function LMF; or, the network device includes an LMF, the beam information is transmitted by the terminal device to the first base station, and is transparently transmitted by the first base station to the LMF; or, the network device includes a positioning solution server, and the beam information is transmitted by the terminal device to the positioning solution server through a wireless network.

[0138] Optionally, in some embodiments, the beam information includes receiving beam information of the terminal device; and / or transmitting beam information of the terminal device.

[0139] Optionally, in some embodiments, the receive beam information includes one or more of the signal strength, direction and width of the receive beam of the terminal device; and / or the transmit beam information includes one or more of the signal strength, direction and width of the transmit beam of the terminal device.

[0140] Optionally, in some embodiments, the direction of the receiving beam includes an absolute direction and / or a relative direction of the receiving beam, and the relative direction of the receiving beam represents the direction difference between the receiving beams of the terminal device for multiple base stations.

[0141] Optionally, in some embodiments, the beam information is used to determine whether there is a direct path between the terminal device and the base station; and / or the beam information is used to locate the terminal device.

[0142] Optionally, in some embodiments, whether there is a direct path between the terminal device and the base station is determined based on a first condition, and the first condition is associated with one or more of the following information: the direction of the receiving beam of the terminal device; the direction of the transmitting beam of the base station; the width of the receiving beam of the terminal device; and the width of the transmitting beam of the base station.

[0143] Optionally, in some embodiments, the first condition is associated with one or more of the following information: the difference between the direction of the receiving beam of the terminal device and the direction of the transmitting beam of the base station; and the sum of the width of the receiving beam of the terminal device and the width of the transmitting beam of the base station.

[0144] Optionally, in some embodiments, the first condition includes: 180-(Δθ+Δα) / 2<=|α-θ|<=180+(Δθ+Δα) / 2, wherein α represents the direction of the receiving beam of the terminal device, θ represents the direction of the transmitting beam of the base station, Δα represents the width of the receiving beam of the terminal device, and Δθ represents the width of the transmitting beam of the base station.

[0145] Optionally, in some embodiments, the first condition is associated with one or more of the following information: the difference in directions of receiving beams of the terminal device relative to multiple reference base stations; the difference in directions of transmitting beams of the multiple reference base stations; and the sum of the widths of the receiving beams of the terminal device relative to the multiple reference base stations.

[0146] Optionally, in some embodiments, the first condition includes: |θ1-θ2|<=|α1-α2|+(Δθ1+Δθ2+Δα2+Δα1) / 2, wherein θ1 represents the direction of a transmit beam of a first reference base station among the multiple reference base stations, α1 represents the direction of a receive beam of the terminal device relative to the first reference base station, Δθ1 represents the width of a transmit beam of the first reference base station, θ2 represents the direction of a transmit beam of a second reference base station among the multiple reference base stations, α2 represents the direction of a receive beam of the terminal device relative to the second reference base station, Δθ1 represents the width of the transmit beam of the second reference base station, Δα1 represents the width of the receive beam of the terminal device relative to the first reference base station, and Δα2 represents the width of the receive beam of the terminal device relative to the second reference base station.

[0147] Fig.15 It is a schematic structural diagram of the device of an embodiment of the present application. Fig.15 The dotted line in the figure indicates that the unit or module is optional. The device 1500 can be used to implement the method described in the above method embodiment. The device 1500 can be a chip, a terminal device or a network device.

[0148] The device 1500 may include one or more processors 1510. The processor 1510 may support the device 1500 to implement the method described in the method embodiment above. The processor 1510 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0149] The apparatus 1500 may further include one or more memories 1520. The memory 1520 stores a program, which can be executed by the processor 1510, so that the processor 1510 executes the method described in the above method embodiment. The memory 1520 may be independent of the processor 1510 or integrated in the processor 1510.

[0150] The apparatus 1500 may further include a transceiver 1530. The processor 1510 may communicate with other devices or chips through the transceiver 1530. For example, the processor 1510 may transmit and receive data with other devices or chips through the transceiver 1530.

[0151] The present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to a terminal device or a network device provided in the present application, and the program enables a computer to execute the method performed by the terminal device or the network device in each embodiment of the present application.

[0152] The embodiment of the present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to the terminal device or network device provided in the embodiment of the present application, and the program enables the computer to execute the method performed by the terminal device or network device in each embodiment of the present application.

[0153] The embodiment of the present application also provides a computer program. The computer program can be applied to the terminal device or network device provided in the embodiment of the present application, and the computer program enables a computer to execute the method executed by the terminal device or network device in each embodiment of the present application.

[0154] It should be understood that in the embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0155] It should be understood that the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0156] It should be understood that in the embodiments of the present application, the "indication" mentioned can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B.

[0157] It should be understood that in the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship of indication and being indicated, configuration and being configured, etc.

[0158] It should be understood that in the embodiments of the present application, "pre-definition" or "pre-configuration" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a network device), and the present application does not limit the specific implementation method. For example, pre-definition can refer to what is defined in the protocol.

[0159] It should be understood that in the embodiments of the present application, the "protocol" may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0160] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0161] In the several embodiments provided in the present 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 only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as 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 mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0162] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0163] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0164] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0165] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A wireless communication method, characterized in that: include: The terminal device sends beam information of the terminal device to the network device; The network device includes a first base station, the beam information is transmitted by the terminal device to the first base station, and transparently transmitted by the first base station to the positioning management function LMF; or, The network device includes an LMF, and the beam information is transmitted by the terminal device to a first base station, and transparently transmitted by the first base station to the LMF; or, The network device includes a positioning solution server, and the beam information is transmitted from the terminal device to the positioning solution server via a wireless network. The beam information is used to determine whether there is a direct path between the terminal device and the base station. Whether there is a direct path between the terminal device and the base station is determined based on a first condition, and the first condition is associated with one or more of the following information: The direction of the receiving beam of the terminal device; The direction of the transmission beam of the base station; the width of the receiving beam of the terminal device; and the width of the base station's transmit beam, The first condition is associated with one or more of the following information: The difference between the direction of the receiving beam of the terminal device and the direction of the transmitting beam of the base station; and The sum of the width of the receiving beam of the terminal device and the width of the transmitting beam of the base station, The first condition includes: 180-(Δθ+Δα) / 2<=|α-θ|<=180+(Δθ+Δα) / 2, wherein α represents the direction of the receiving beam of the terminal device, θ represents the direction of the transmitting beam of the base station, Δα represents the width of the receiving beam of the terminal device, and Δθ represents the width of the transmitting beam of the base station; or The first condition is associated with one or more of the following information: The difference in directions of the receiving beams of the terminal device relative to a plurality of reference base stations; The difference in directions of the transmission beams of the plurality of reference base stations; and the sum of the widths of the receiving beams of the terminal device relative to the multiple reference base stations, Among them, the first condition includes: |θ1-θ2|<=|α1-α2|+(Δθ1+Δθ2+Δα2+Δα1) / 2, wherein θ1 represents the direction of the transmission beam of the first reference base station among the multiple reference base stations, α1 represents the direction of the receiving beam of the terminal device relative to the first reference base station, Δθ1 represents the width of the transmission beam of the first reference base station, θ2 represents the direction of the transmission beam of the second reference base station among the multiple reference base stations, α2 represents the direction of the receiving beam of the terminal device relative to the second reference base station, Δθ1 represents the width of the transmission beam of the second reference base station, Δα1 represents the width of the receiving beam of the terminal device relative to the first reference base station, and Δα2 represents the width of the receiving beam of the terminal device relative to the second reference base station.

2. The method according to claim 1, characterized in that The terminal device includes an antenna system and a beam direction acquisition system that are connected to each other. The beam direction acquisition system is used to control the antenna system to perform beam scanning to obtain the beam information.

3. The method according to claim 2, characterized in that The terminal device also includes a baseband chip for wireless communication, and the beam direction acquisition system is located outside the baseband chip.

4. The method according to claim 3, characterized in that The baseband chip is used to measure the received signal of the antenna system, and the beam direction acquisition system performs the beam scanning based on the measurement result of the received signal.

5. The method according to claim 4, characterized in that The beam direction acquisition system comprises: an antenna direction control system, configured to receive the measurement result from the baseband chip and determine an antenna direction adjustment value of the antenna system according to the measurement result; and The antenna direction adjustment system is used to adjust the antenna direction of the antenna system according to the antenna direction adjustment value during the beam scanning process.

6. The method according to claim 3, characterized in that The beam direction acquisition system is used to measure the received signal of the antenna system and perform the beam scanning based on the measurement result of the received signal.

7. The method according to claim 6, characterized in that The beam direction acquisition system comprises: An antenna direction control system, used to measure a received signal of the antenna system and determine an antenna direction adjustment value of the antenna system according to a measurement result of the measurement; The antenna direction adjustment system is used to adjust the antenna direction of the antenna system according to the antenna direction adjustment value during the beam scanning process.

8. The method according to any one of claims 3 to 7, characterized in that: The beam information is sent by the beam direction acquisition system; or, the beam information is sent by the baseband chip.

9. The method according to any one of claims 1 to 8, characterized in that The beam information includes receiving beam information of the terminal device; and / or transmitting beam information of the terminal device.

10. The method according to claim 9, characterized in that: The receiving beam information includes one or more of the signal strength, direction and width of the receiving beam of the terminal device; and / or The transmit beam information includes one or more of the signal strength, direction, and width of the transmit beam of the terminal device.

11. The method according to claim 10, characterized in that The direction of the receiving beam includes an absolute direction and / or a relative direction of the receiving beam, and the relative direction of the receiving beam represents a direction difference between the receiving beams of the terminal device for multiple base stations.

12. The method according to any one of claims 1 to 11, characterized in that: The beam information is used to locate the terminal device.

13. A wireless communication method, characterized in that: include: The network device receives the beam information of the terminal device sent by the terminal device; The network device includes a first base station, the beam information is transmitted by the terminal device to the first base station, and transparently transmitted by the first base station to the positioning management function LMF; or, The network device includes an LMF, and the beam information is transmitted by the terminal device to a first base station, and transparently transmitted by the first base station to the LMF; or, The network device includes a positioning solution server, and the beam information is transmitted from the terminal device to the positioning solution server via a wireless network. The beam information is used to determine whether there is a direct path between the terminal device and the base station. Whether there is a direct path between the terminal device and the base station is determined based on a first condition, and the first condition is associated with one or more of the following information: The direction of the receiving beam of the terminal device; The direction of the transmission beam of the base station; the width of the receiving beam of the terminal device; and the width of the base station's transmit beam, The first condition is associated with one or more of the following information: The difference between the direction of the receiving beam of the terminal device and the direction of the transmitting beam of the base station; and The sum of the width of the receiving beam of the terminal device and the width of the transmitting beam of the base station, The first condition includes: 180-(Δθ+Δα) / 2<=|α-θ|<=180+(Δθ+Δα) / 2, wherein α represents the direction of the receiving beam of the terminal device, θ represents the direction of the transmitting beam of the base station, Δα represents the width of the receiving beam of the terminal device, and Δθ represents the width of the transmitting beam of the base station; or The first condition is associated with one or more of the following information: The difference in directions of the receiving beams of the terminal device relative to a plurality of reference base stations; The difference in directions of the transmission beams of the plurality of reference base stations; and the sum of the widths of the receiving beams of the terminal device relative to the multiple reference base stations, Among them, the first condition includes: |θ1-θ2|<=|α1-α2|+(Δθ1+Δθ2+Δα2+Δα1) / 2, wherein θ1 represents the direction of the transmission beam of the first reference base station among the multiple reference base stations, α1 represents the direction of the receiving beam of the terminal device relative to the first reference base station, Δθ1 represents the width of the transmission beam of the first reference base station, θ2 represents the direction of the transmission beam of the second reference base station among the multiple reference base stations, α2 represents the direction of the receiving beam of the terminal device relative to the second reference base station, Δθ1 represents the width of the transmission beam of the second reference base station, Δα1 represents the width of the receiving beam of the terminal device relative to the first reference base station, and Δα2 represents the width of the receiving beam of the terminal device relative to the second reference base station.

14. The method according to claim 13, characterized in that The beam information includes receiving beam information of the terminal device; and / or transmitting beam information of the terminal device.

15. The method according to claim 14, characterized in that: The receiving beam information includes one or more of the signal strength, direction and width of the receiving beam of the terminal device; and / or The transmit beam information includes one or more of the signal strength, direction, and width of the transmit beam of the terminal device.

16. The method according to claim 15, characterized in that The direction of the receiving beam includes an absolute direction and / or a relative direction of the receiving beam, and the relative direction of the receiving beam represents a direction difference between the receiving beams of the terminal device for multiple base stations.

17. The method according to any one of claims 13 to 16, characterized in that: The beam information is used to locate the terminal device.

18. A terminal device, characterized in that: include: A communication module, used for sending beam information of the terminal device to a network device; The network device includes a first base station, the beam information is transmitted by the terminal device to the first base station, and transparently transmitted by the first base station to the positioning management function LMF; or, The network device includes an LMF, and the beam information is transmitted by the terminal device to a first base station, and transparently transmitted by the first base station to the LMF; or, The network device includes a positioning solution server, and the beam information is transmitted from the terminal device to the positioning solution server via a wireless network. The beam information is used to determine whether there is a direct path between the terminal device and the base station. Whether there is a direct path between the terminal device and the base station is determined based on a first condition, and the first condition is associated with one or more of the following information: The direction of the receiving beam of the terminal device; The direction of the transmission beam of the base station; the width of the receiving beam of the terminal device; and the width of the base station's transmit beam, The first condition is associated with one or more of the following information: The difference between the direction of the receiving beam of the terminal device and the direction of the transmitting beam of the base station; and The sum of the width of the receiving beam of the terminal device and the width of the transmitting beam of the base station, The first condition includes: 180-(Δθ+Δα) / 2<=|α-θ|<=180+(Δθ+Δα) / 2, wherein α represents the direction of the receiving beam of the terminal device, θ represents the direction of the transmitting beam of the base station, Δα represents the width of the receiving beam of the terminal device, and Δθ represents the width of the transmitting beam of the base station, or The first condition is associated with one or more of the following information: The difference in directions of the receiving beams of the terminal device relative to a plurality of reference base stations; The difference in directions of the transmission beams of the plurality of reference base stations; and the sum of the widths of the receiving beams of the terminal device relative to the multiple reference base stations, Among them, the first condition includes: |θ1-θ2|<=|α1-α2|+(Δθ1+Δθ2+Δα2+Δα1) / 2, wherein θ1 represents the direction of the transmission beam of the first reference base station among the multiple reference base stations, α1 represents the direction of the receiving beam of the terminal device relative to the first reference base station, Δθ1 represents the width of the transmission beam of the first reference base station, θ2 represents the direction of the transmission beam of the second reference base station among the multiple reference base stations, α2 represents the direction of the receiving beam of the terminal device relative to the second reference base station, Δθ1 represents the width of the transmission beam of the second reference base station, Δα1 represents the width of the receiving beam of the terminal device relative to the first reference base station, and Δα2 represents the width of the receiving beam of the terminal device relative to the second reference base station.

19. The terminal device according to claim 18, characterized in that: The terminal device includes an antenna system and a beam direction acquisition system that are connected to each other. The beam direction acquisition system is used to control the antenna system to perform beam scanning to obtain the beam information.

20. The terminal device according to claim 19, characterized in that: The terminal device also includes a baseband chip for wireless communication, and the beam direction acquisition system is located outside the baseband chip.

21. The terminal device according to claim 20, characterized in that: The baseband chip is used to measure the received signal of the antenna system, and the beam direction acquisition system performs the beam scanning based on the measurement result of the received signal.

22. The terminal device according to claim 21, characterized in that: The beam direction acquisition system comprises: an antenna direction control system, configured to receive the measurement result from the baseband chip and determine an antenna direction adjustment value of the antenna system according to the measurement result; and The antenna direction adjustment system is used to adjust the antenna direction of the antenna system according to the antenna direction adjustment value during the beam scanning process.

23. The terminal device according to claim 20, characterized in that: The beam direction acquisition system is used to measure the received signal of the antenna system and perform the beam scanning based on the measurement result of the received signal.

24. The terminal device according to claim 23, characterized in that: The beam direction acquisition system comprises: An antenna direction control system, used to measure a received signal of the antenna system and determine an antenna direction adjustment value of the antenna system according to a measurement result of the measurement; The antenna direction adjustment system is used to adjust the antenna direction of the antenna system according to the antenna direction adjustment value during the beam scanning process.

25. The terminal device according to any one of claims 20 to 24, characterized in that: The beam information is sent by the beam direction acquisition system; or, the beam information is sent by the baseband chip.

26. The terminal device according to any one of claims 18 to 25, characterized in that: The beam information includes receiving beam information of the terminal device; and / or transmitting beam information of the terminal device.

27. The terminal device according to claim 26, characterized in that: The receiving beam information includes one or more of the signal strength, direction and width of the receiving beam of the terminal device; and / or The transmit beam information includes one or more of the signal strength, direction, and width of the transmit beam of the terminal device.

28. The terminal device according to claim 27, characterized in that: The direction of the receiving beam includes an absolute direction and / or a relative direction of the receiving beam, and the relative direction of the receiving beam represents a direction difference between the receiving beams of the terminal device for multiple base stations.

29. The terminal device according to any one of claims 18 to 28, characterized in that: The beam information is used to locate the terminal device.

30. A network device, characterized in that: include: A communication module, used for receiving beam information of the terminal device sent by the terminal device; The network device includes a first base station, the beam information is transmitted by the terminal device to the first base station, and transparently transmitted by the first base station to the positioning management function LMF; or, The network device includes an LMF, and the beam information is transmitted by the terminal device to a first base station, and transparently transmitted by the first base station to the LMF; or, The network device includes a positioning solution server, and the beam information is transmitted from the terminal device to the positioning solution server via a wireless network. The beam information is used to determine whether there is a direct path between the terminal device and the base station. Whether there is a direct path between the terminal device and the base station is determined based on a first condition, and the first condition is associated with one or more of the following information: The direction of the receiving beam of the terminal device; The direction of the transmission beam of the base station; the width of the receiving beam of the terminal device; and the width of the base station's transmit beam, The first condition is associated with one or more of the following information: The difference between the direction of the receiving beam of the terminal device and the direction of the transmitting beam of the base station; and The sum of the width of the receiving beam of the terminal device and the width of the transmitting beam of the base station, The first condition includes: 180-(Δθ+Δα) / 2<=|α-θ|<=180+(Δθ+Δα) / 2, wherein α represents the direction of the receiving beam of the terminal device, θ represents the direction of the transmitting beam of the base station, Δα represents the width of the receiving beam of the terminal device, and Δθ represents the width of the transmitting beam of the base station, or, The first condition is associated with one or more of the following information: The difference in directions of the receiving beams of the terminal device relative to a plurality of reference base stations; The difference in directions of the transmission beams of the plurality of reference base stations; and the sum of the widths of the receiving beams of the terminal device relative to the multiple reference base stations, Among them, the first condition includes: |θ1-θ2|<=|α1-α2|+(Δθ1+Δθ2+Δα2+Δα1) / 2, wherein θ1 represents the direction of the transmission beam of the first reference base station among the multiple reference base stations, α1 represents the direction of the receiving beam of the terminal device relative to the first reference base station, Δθ1 represents the width of the transmission beam of the first reference base station, θ2 represents the direction of the transmission beam of the second reference base station among the multiple reference base stations, α2 represents the direction of the receiving beam of the terminal device relative to the second reference base station, Δθ1 represents the width of the transmission beam of the second reference base station, Δα1 represents the width of the receiving beam of the terminal device relative to the first reference base station, and Δα2 represents the width of the receiving beam of the terminal device relative to the second reference base station.

31. The network device according to claim 30, characterized in that: The beam information includes receiving beam information of the terminal device; and / or transmitting beam information of the terminal device.

32. The network device according to claim 31, characterized in that: The receiving beam information includes one or more of the signal strength, direction and width of the receiving beam of the terminal device; and / or The transmit beam information includes one or more of the signal strength, direction, and width of the transmit beam of the terminal device.

33. The network device according to claim 32, characterized in that: The direction of the receiving beam includes an absolute direction and / or a relative direction of the receiving beam, and the relative direction of the receiving beam represents a direction difference between the receiving beams of the terminal device for multiple base stations.

34. The network device according to any one of claims 30 to 33, characterized in that: The beam information is used to locate the terminal device.

35. A beam direction acquisition system, characterized in that: The beam direction acquisition system is located outside the baseband chip for wireless communication of the terminal device. The beam direction acquisition system comprises: A beam scanning unit, used to control the antenna system of the terminal device to perform beam scanning to obtain the beam information; a communication unit, configured to communicate with a positioning solution server to send the beam information to the positioning solution server; or, the communication unit is configured to communicate with the baseband chip to send the beam information to a base station through the baseband chip, The beam information is used to determine whether there is a direct path between the terminal device and the base station. Whether there is a direct path between the terminal device and the base station is determined based on a first condition, and the first condition is associated with one or more of the following information: The direction of the receiving beam of the terminal device; The direction of the transmission beam of the base station; the width of the receiving beam of the terminal device; and the width of the base station's transmit beam, The first condition is associated with one or more of the following information: The difference between the direction of the receiving beam of the terminal device and the direction of the transmitting beam of the base station; and The sum of the width of the receiving beam of the terminal device and the width of the transmitting beam of the base station, The first condition includes: 180-(Δθ+Δα) / 2<=|α-θ|<=180+(Δθ+Δα) / 2, wherein α represents the direction of the receiving beam of the terminal device, θ represents the direction of the transmitting beam of the base station, Δα represents the width of the receiving beam of the terminal device, and Δθ represents the width of the transmitting beam of the base station, or, The first condition is associated with one or more of the following information: The difference in directions of the receiving beams of the terminal device relative to a plurality of reference base stations; The difference in directions of the transmission beams of the plurality of reference base stations; and the sum of the widths of the receiving beams of the terminal device relative to the multiple reference base stations, Among them, the first condition includes: |θ1-θ2|<=|α1-α2|+(Δθ1+Δθ2+Δα2+Δα1) / 2, wherein θ1 represents the direction of the transmission beam of the first reference base station among the multiple reference base stations, α1 represents the direction of the receiving beam of the terminal device relative to the first reference base station, Δθ1 represents the width of the transmission beam of the first reference base station, θ2 represents the direction of the transmission beam of the second reference base station among the multiple reference base stations, α2 represents the direction of the receiving beam of the terminal device relative to the second reference base station, Δθ1 represents the width of the transmission beam of the second reference base station, Δα1 represents the width of the receiving beam of the terminal device relative to the first reference base station, and Δα2 represents the width of the receiving beam of the terminal device relative to the second reference base station.

36. The beam direction acquisition system according to claim 35, characterized in that: The communication unit is further configured to receive a measurement result of a reception signal of the antenna system from the baseband chip.

37. The beam direction acquisition system according to claim 36, characterized in that: The beam scanning unit comprises: an antenna direction control system, configured to receive the measurement result from the baseband chip and determine an antenna direction adjustment value of the antenna system according to the measurement result; and The antenna direction adjustment system is used to adjust the antenna direction of the antenna system according to the antenna direction adjustment value during the beam scanning process.

38. The beam direction acquisition system according to claim 35, characterized in that: The beam scanning unit also includes: The signal measuring unit is used to measure the received signal of the antenna system, and the beam scanning unit performs the beam scanning based on the measurement result of the received signal.

39. The beam direction acquisition system according to claim 38, characterized in that: The beam scanning unit comprises: An antenna direction control system, used to measure a received signal of the antenna system and determine an antenna direction adjustment value of the antenna system according to a measurement result of the measurement; The antenna direction adjustment system is used to adjust the antenna direction of the antenna system according to the antenna direction adjustment value during the beam scanning process.

40. A terminal device, characterized in that: include: Antenna system; Baseband chips for wireless communications; as well as A beam direction acquisition system as claimed in any one of claims 35 to 39.

41. A terminal device, characterized in that: The terminal device comprises a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory so that the terminal device executes the method according to any one of claims 1 to 12.

42. A network device, characterized in that: The network device comprises a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory so that the network device executes the method according to any one of claims 13 to 17.

43. A device, characterized in that The device comprises a processor, configured to call a program from a memory so that the device executes the method according to any one of claims 1 to 12.

44. A device, characterized in that The device comprises a processor, configured to call a program from a memory so that the device executes the method according to any one of claims 13 to 17.

45. A chip, characterized in that: The device comprises a processor, which is used to call a program from a memory so that a device equipped with the chip executes a method as claimed in any one of claims 1 to 12.

46. ​​A chip, characterized in that: It comprises a processor, which is used to call a program from a memory, so that a device equipped with the chip executes a method as claimed in any one of claims 13 to 17.

47. A computer-readable storage medium, characterized in that A program is stored thereon, and the program enables a computer to execute the method according to any one of claims 1 to 12.

48. A computer-readable storage medium, characterized in that A program is stored thereon, the program causing a computer to execute the method according to any one of claims 17 to 25.

49. A computer program product, characterized in that The method comprises a program which causes a computer to execute the method according to any one of claims 1 to 12.

50. A computer program product, characterized in that The method comprises a program which causes a computer to execute the method according to any one of claims 13 to 17.

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