Beam pointing error correction method and device and storage medium

Abstract

The invention relates to a beam pointing error correction method and device and a storage medium, and the method executed by network equipment comprises the steps: determining a first beam used for successfully paging a terminal, and enabling the first beam to be a beam used for expanding a paging area under the condition that the terminal is failed to be paged by using a second beam; a first message is sent to the terminal, and the first message is used for indicating the terminal to report beam error information; a second message sent by the terminal is received, the second message comprises the current first position and the elevation angle of the terminal, and the elevation angle is determined by the terminal according to the position of the network equipment and the second wave beam; and correcting the coverage range of the first cell to which the first beam belongs according to the first position and the elevation angle. Therefore, the network equipment can correct the coverage range dislocation of the cell caused by the beam pointing error, so as to accurately provide business service for the terminal.

Description

Beam pointing error correction method and device, and storage medium TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of communication, and particularly relates to a beam pointing error correction method and device, and a storage medium. BACKGROUND

[0002] A satellite communication system has advantages of large coverage area and long communication distance. Due to non-uniform distribution of user equipment (UE) service requirements, and the number of satellite spot beams is usually less than the number of cells, a hop beam technology is used to flexibly allocate limited on-board resources.

[0003] In the hop beam technology, a satellite controls the spatial pointing, bandwidth, frequency point and transmission power of a satellite multi-beam antenna, and only serves a single cell or multiple cells in a coverage range at the same time, so as to improve resource utilization by allocating more resources to a cell with large service requirements.

[0004] SUMMARY

[0005] The beam pointing error correction method, device and storage medium provided by the embodiments of the present disclosure are used to solve the problem that, in the related art, due to beam pointing error, the coverage range of a cell is misaligned, and the cell cannot accurately provide service to a terminal.

[0006] The embodiments of the present disclosure provide a beam pointing error correction method, device and storage medium.

[0007] According to a first aspect of the embodiments of the present disclosure, a beam pointing error correction method is provided, which is executed by a network device and includes: determining a first beam used for successfully paging a terminal, wherein the first beam is a beam used for expanding a paging area in a case that paging the terminal using a second beam fails; sending a first message to the terminal, wherein the first message is used to instruct the terminal to report beam error information; receiving a second message sent by the terminal, wherein the second message includes a first position of the terminal and an elevation angle, and the elevation angle is determined by the terminal according to a position of the network device and the second beam; and correcting a coverage range of a first cell to which the first beam belongs according to the first position and the elevation angle.

[0008] In the above embodiments, the network device can correct the misalignment of the coverage range of the cell caused by the beam pointing error, so as to accurately provide service to the terminal, and avoid problems of resource occupation, increased management complexity and enhanced adjacent channel interference.

[0009] According to a second aspect of the embodiments of the present disclosure, a beam pointing error correction method is provided, which is performed by a terminal and includes: receiving a first message sent by a network device, wherein the first message is used to instruct the terminal to report beam error information, and the first message is sent by the network device in a case that the network device successfully pages the terminal using a first beam after unsuccessfully paging the terminal using a second beam; determining an elevation angle according to a location of the network device and the second beam; and sending a second message to the network device, wherein the second message includes a current first location of the terminal and the elevation angle, and the first location and the elevation angle are used by the network device to correct a coverage range of a first cell to which the first beam belongs.

[0010] In the above embodiment, the terminal can provide the network device with the first location and the elevation angle of the terminal, so as to correct a cell coverage range misalignment caused by a beam pointing error on the network device side, to accurately provide service for the terminal by the network device, and to avoid problems such as resource occupation, management complexity increase, and adjacent channel interference enhancement.

[0011] According to a third aspect of the embodiments of the present disclosure, a beam pointing error correction method is provided, which includes: determining, by a network device, a first beam successfully used to page a terminal, wherein the first beam is a beam used to expand a paging area in a case that a second beam is unsuccessfully used to page the terminal; sending, by the network device, a first message to the terminal, wherein the first message is used to instruct the terminal to report beam error information; receiving, by the terminal, the first message sent by the network device; determining, by the terminal, an elevation angle according to a location of the network device and the second beam; sending, by the terminal, a second message to the network device, wherein the second message includes a current first location of the terminal and the elevation angle; receiving, by the network device, the second message sent by the terminal; and correcting, by the network device, a coverage range of a first cell to which the first beam belongs according to the first location and the elevation angle.

[0012] In the above embodiment, the network device can correct a cell coverage range misalignment caused by a beam pointing error, to accurately provide service for the terminal, and to avoid problems such as resource occupation, management complexity increase, and adjacent channel interference enhancement.

[0013] According to a fourth aspect of the embodiments of the present disclosure, a network device is provided, which includes: a processing module configured to determine a first beam successfully used to page a terminal, wherein the first beam is a beam used to expand a paging area in a case that a second beam is unsuccessfully used to page the terminal; a transceiver configured to send a first message to the terminal, wherein the first message is used to instruct the terminal to report beam error information; the transceiver is further configured to receive a second message sent by the terminal, wherein the second message includes a current first location of the terminal and an elevation angle, and the elevation angle is determined by the terminal according to a location of the network device and the second beam; and the processing module is further configured to correct a coverage range of a first cell to which the first beam belongs according to the first location and the elevation angle.

[0014] According to a fifth aspect of the embodiments of the present disclosure, a terminal is provided, including: a transceiver configured to receive a first message sent by a network device, wherein the first message is used to instruct the terminal to report beam error information, and the first message is sent by the network device in a case that the network device fails to page the terminal using a second beam and succeeds in paging the terminal using a first beam in an enlarged paging area; and a processor configured to determine an elevation angle according to a location of the network device and the second beam; and the transceiver is further configured to send a second message to the network device, wherein the second message includes a current first location of the terminal and the elevation angle, and the first location and the elevation angle are used by the network device to correct a coverage range of a first cell to which the first beam belongs.

[0015] According to a sixth aspect of the embodiments of the present disclosure, a communication device is provided, including: one or more processors; and a memory coupled to the processors and storing instructions thereon that, when executed by the processors, cause the communication device to perform the method of the first aspect.

[0016] According to a seventh aspect of the embodiments of the present disclosure, a communication device is provided, including: one or more processors; and a memory coupled to the processors and storing instructions thereon that, when executed by the processors, cause the communication device to perform the method of the second aspect.

[0017] According to an eighth aspect of the embodiments of the present disclosure, a communication system is provided, including a network device and a terminal, wherein the network device is configured to implement the method of the first aspect, and the terminal is configured to implement the method of the second aspect.

[0018] According to a ninth aspect of the embodiments of the present disclosure, a storage medium is provided, and the storage medium stores instructions that, when executed on a communication device, cause the communication device to perform the method of the first aspect or the second aspect. BRIEF DESCRIPTION OF DRAWINGS

[0019] FIG. 1 is an architecture diagram of a communication system according to an embodiment of the present disclosure;

[0020] [According to Rule 91 Correction 22.08.2024] FIG. 2 is a schematic diagram of cell mispositioning under beam pointing error according to an embodiment of the present disclosure;

[0021] FIG. 3 is a flowchart of a beam pointing error correction method according to an embodiment of the present disclosure;

[0022] FIG. 4A is a flowchart of another beam pointing error correction method according to an embodiment of the present disclosure;

[0023] FIG. 4B is a flowchart of still another beam pointing error correction method according to an embodiment of the present disclosure;

[0024] FIG. 4C is a flow chart of another beam pointing error correction method according to an embodiment of the present disclosure;

[0025] FIG. 5A is a flow chart of another beam pointing error correction method according to an embodiment of the present disclosure;

[0026] FIG. 5B is a flow chart of another beam pointing error correction method according to an embodiment of the present disclosure;

[0027] FIG. 5C is a flow chart of another beam pointing error correction method according to an embodiment of the present disclosure;

[0028] FIG. 6A is a schematic diagram of a satellite beam hopping system according to an embodiment of the present disclosure;

[0029] FIG. 6B is a schematic diagram of a control beam and traffic beam separation access according to an embodiment of the present disclosure;

[0030] FIG. 6C is a schematic diagram of a cell center displacement and beam diameter stretching and elevation angle adjustment according to an embodiment of the present disclosure;

[0031] FIG. 6D is a flow chart of a terminal location-based paging method according to an embodiment of the present disclosure;

[0032] FIG. 6E is a flow chart of terminal registration location information according to an embodiment of the present disclosure;

[0033] FIG. 6F is a flow chart of a terminal applying for traffic through a control beam according to an embodiment of the present disclosure;

[0034] FIG. 6G is a flow chart of satellite signaling for paging a terminal using a traffic beam according to an embodiment of the present disclosure;

[0035] FIG. 6H is a flow chart of satellite error correction according to SIB19 parameters fed back by a terminal according to an embodiment of the present disclosure;

[0036] FIG. 6I is a flow chart of a terminal completing traffic according to new configuration information according to an embodiment of the present disclosure;

[0037] FIG. 7A is a structural diagram of a network device according to an embodiment of the present disclosure;

[0038] FIG. 7B is a structural diagram of a terminal according to an embodiment of the present disclosure;

[0039] FIG. 8A is a structural diagram of a communication device according to an embodiment of the present disclosure;

[0040] FIG. 8B is a structural diagram of a chip according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0041] The embodiment of the present disclosure provides a beam pointing error correction method, device and storage medium.

[0042] In the first aspect, the embodiment of the present disclosure provides a beam pointing error correction method, which is executed by a network device and includes the following steps: determining a first beam used for successfully paging a terminal, wherein the first beam is a beam used for expanding a paging area in a case that paging the terminal by using a second beam fails; sending a first message to the terminal, wherein the first message is used for instructing the terminal to report beam error information; receiving a second message sent by the terminal, wherein the second message includes a first position of the terminal and an elevation angle, and the elevation angle is determined by the terminal according to a position of the network device and the second beam; and correcting a coverage range of a first cell to which the first beam belongs according to the first position and the elevation angle.

[0043] In the above embodiment, the network device can correct the misplacement of the coverage range of the first cell caused by the beam pointing error, so as to accurately provide service for the terminal, and avoid the problems of resource occupation, management complexity and adjacent channel interference enhancement.

[0044] In combination with some embodiments of the first aspect, in some embodiments, the above method further includes: correcting, by the network device, a coverage range of a second cell to which the second beam belongs according to the first position and the elevation angle.

[0045] In the above embodiment, the network device can correct the misplacement of the coverage range of the second cell caused by the beam pointing error, so as to accurately provide service for the terminal, and avoid the problems of resource occupation, management complexity and adjacent channel interference enhancement.

[0046] In combination with some embodiments of the first aspect, in some embodiments, the correcting, by the network device, of the coverage range of the first cell to which the first beam belongs according to the first position and the elevation angle includes: determining the coverage range of the first cell according to the elevation angle and the first beam; and determining that the first position is not within the coverage range of the first cell, and expanding the coverage range of the first cell to include the first position.

[0047] In combination with some embodiments of the first aspect, in some embodiments, the correcting, by the network device, of the coverage range of the second cell to which the second beam belongs according to the first position and the elevation angle includes: determining the coverage range of the second cell according to the elevation angle and the second beam; and determining that the first position is within the coverage range of the second cell, and reducing the coverage range of the second cell to not include the first position.

[0048] In combination with some embodiments of the first aspect, in some embodiments, the first message is further used for instructing the terminal to report beam information, and the second message further includes the second beam, wherein the above method further includes: determining, by the network device, the second beam according to the second message.

[0049] In some embodiments of the first aspect, in some embodiments, the method further comprises: adjusting, by the network device, the hop-beam pattern according to the elevation angle, the corrected first cell, and the corrected second cell.

[0050] In some embodiments of the first aspect, in some embodiments, the method further comprises: determining, by the network device, the resource configuration information according to the coverage of the corrected first cell, the coverage of the corrected second cell, and the adjusted hop-beam pattern; and sending, by the network device, the resource configuration information to the terminal.

[0051] In some embodiments of the first aspect, in some embodiments, the method further comprises: receiving, by the network device, service data sent by the terminal using the transmission resource, wherein the transmission resource is determined by the terminal according to the resource configuration information.

[0052] In some embodiments of the first aspect, in some embodiments, the method further comprises: paging, by the network device, the terminal using the second beam according to the second position of the terminal; determining, by the network device, that no paging response is received, expanding the paging area, and paging, by the network device, the terminal using the first beam, wherein the paging range of the first beam includes part or all of the range of a circle with the second position as the center and the distance threshold as the radius.

[0053] In some embodiments of the first aspect, in some embodiments, the method further comprises: receiving, by the network device, a third message sent by the terminal, wherein the third message includes the second position of the terminal, and the third message is sent by the terminal when the distance between the third position and the offset position exceeds the distance threshold, and the third position is the last position reported by the terminal to the network device.

[0054] In the second aspect, the embodiments of the present disclosure provide a beam pointing error correction method, which is executed by a terminal and includes: receiving a first message sent by a network device, wherein the first message is used to instruct the terminal to report beam error information, and the first message is sent by the network device in a case where the network device fails to page the terminal using a second beam and succeeds to page the terminal using a first beam after expanding a paging area; determining an elevation angle according to a position of the network device and the second beam; and sending, by the terminal, a second message to the network device, wherein the second message includes a first position of the terminal and the elevation angle, and the first position and the elevation angle are used by the network device to correct a coverage range of a first cell to which the first beam belongs.

[0055] In the above embodiments, the terminal can provide the network device with the first position of the terminal and the elevation angle, so as to correct the misalignment of the cell coverage range caused by the beam pointing error on the network device side, to realize that the network device accurately provides service to the terminal, and to avoid problems such as resource occupation, management complexity, and adjacent channel interference enhancement.

[0056] In some embodiments of the second aspect, in some embodiments, the first position and the elevation angle are used by the network device to correct a coverage range of a second cell to which the second beam belongs.

[0057] In some embodiments of the second aspect, in some embodiments, the second message further comprises the second beam.

[0058] In some embodiments of the second aspect, in some embodiments, the elevation angle, the corrected first cell, and the corrected second cell are further used by the network device to adjust a beam hopping pattern.

[0059] In some embodiments of the second aspect, in some embodiments, the method further comprises: receiving, by the terminal, resource configuration information sent by the network device, wherein the resource configuration information is determined by the network device according to the coverage range of the corrected first cell, the coverage range of the corrected second cell, and the adjusted beam hopping pattern.

[0060] In some embodiments of the second aspect, in some embodiments, the method further comprises: determining, by the terminal, a transmission resource according to the resource configuration information; and sending, by the terminal, service data to the network device using the transmission resource.

[0061] In some embodiments of the second aspect, in some embodiments, the method further comprises: determining, by the terminal, that a distance between the third position and the second position exceeds a distance threshold; and sending, by the terminal, a third message to the network device, wherein the third message comprises a second position of the terminal, the second position is used by the network device to determine that the terminal is paged using the second beam, and the third position is a last position reported by the terminal to the network device.

[0062] In a third aspect, the embodiments of the present disclosure provide a beam pointing error correction method. A network device determines a first beam used for successfully paging a terminal, wherein the first beam is a beam used for expanding a paging area in a case that the terminal is unsuccessfully paged using a second beam. The network device sends a first message to the terminal, wherein the first message is used to instruct the terminal to report beam error information. The terminal receives the first message sent by the network device. The terminal determines an elevation angle according to a position of the network device and the second beam. The terminal sends a second message to the network device, wherein the second message comprises a first position of the terminal and the elevation angle. The network device receives the second message sent by the terminal. The network device corrects a coverage range of a first cell to which the first beam belongs according to the first position and the elevation angle.

[0063] In the above embodiments, the network device can correct the misalignment of the coverage range of the cell caused by the beam pointing error, so as to accurately provide service to the terminal, and avoid the problems of resource occupation, management complexity, and adjacent channel interference enhancement.

[0064] In a fourth aspect, the embodiments of the present disclosure provide a network device, the network device comprising at least one of a transceiver module and a processing module; and wherein the network device is configured to perform the optional implementation manners of the first aspect.

[0065] In a fifth aspect, the embodiments of the present disclosure provide a terminal, the terminal comprising at least one of a transceiver module and a processing module; and wherein the terminal is configured to perform the optional implementation manners of the second aspect.

[0066] In a sixth aspect, the embodiments of the present disclosure provide a communication device, the communication device comprising: one or more processors; and a memory coupled to the processors and storing instructions that, when executed by the processors, cause the communication device to perform the method of the first aspect.

[0067] In a seventh aspect, the embodiments of the present disclosure provide a communication device, the communication device comprising: one or more processors; and a memory coupled to the processors and storing instructions that, when executed by the processors, cause the communication device to perform the method of the second aspect.

[0068] In an eighth aspect, the embodiments of the present disclosure provide a communication system, the communication system comprising: a network device and a terminal; wherein the network device is configured to perform the method described in the optional implementation manners of the first aspect, and the terminal is configured to perform the method described in the optional implementation manners of the second aspect.

[0069] In a ninth aspect, the embodiments of the present disclosure provide a storage medium, the storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the method described in the optional implementation manners of the first aspect and the second aspect.

[0070] In a tenth aspect, the embodiments of the present disclosure provide a program product, the program product, when executed by a communication device, causing the communication device to perform the method described in the optional implementation manners of the first aspect and the second aspect.

[0071] In an eleventh aspect, the embodiments of the present disclosure provide a computer program, when executed on a computer, causing the computer to perform the method described in the optional implementation manners of the first aspect and the second aspect.

[0072] In a twelfth aspect, the embodiments of the present disclosure provide a chip or chip system. The chip or chip system comprises processing circuitry configured to perform the method described in the optional implementation manners of the first aspect and the second aspect.

[0073] It can be understood that the network device, the terminal, the communication apparatus, the communication system, the storage medium, the program product, the computer program, the chip or the chip system are used to execute the method proposed in the embodiments of the present disclosure. Therefore, the beneficial effects achieved can refer to the beneficial effects in the corresponding method, which will not be repeated here.

[0074] The embodiments of the present disclosure propose a beam pointing error correction method, apparatus and storage medium. In some embodiments, the beam pointing error correction method can be replaced by the terms such as information processing method, communication method, etc.

[0075] The embodiments of the present disclosure are not exhaustive, but only illustrate some embodiments, and are not specific limitations on the protection scope of the present disclosure. In the case of no contradiction, each step in an embodiment can be implemented as an independent embodiment, and the steps can be combined arbitrarily, for example, the scheme after removing some steps in an embodiment can also be implemented as an independent embodiment, and the order of the steps in an embodiment can be exchanged arbitrarily, in addition, the optional implementation manners in an embodiment can be combined arbitrarily; in addition, the embodiments can be combined arbitrarily, for example, the steps of different embodiments or part or all of the steps of different embodiments can be combined arbitrarily, an embodiment can be combined with the optional implementation manners of other embodiments.

[0076] In the embodiments of the present disclosure, the terms and / or descriptions of the embodiments are consistent and can be referred to each other if there is no special description and logical conflict, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0077] The terms used in the embodiments of the present disclosure are only for the purpose of describing the specific embodiments, and not as a limitation on the present disclosure.

[0078] In the embodiments of the present disclosure, unless otherwise specified, the elements expressed in singular form, such as "one", "a", "the", "above", "said", "preceding", "this" and the like, can represent "one and only one", or "one or more", "at least one" and the like. For example, in the case of using articles such as "a", "an", "the" and the like in English, the noun after the article can be understood as singular expression, or can be understood as plural expression.

[0079] In the embodiments of the present disclosure, "a plurality of" means two or more.

[0080] In some embodiments, the terms "at least one of," "one or more of," "a plurality of," "multiple," and the like can be used interchangeably.

[0081] In some embodiments, the recitations "at least one of A, B," "A and / or B," "in one case A, in another case B," "in response to a case A, in response to a case B," and the like can include the following technical solutions according to the case: in some embodiments A (A is executed regardless of B); in some embodiments B (B is executed regardless of A); in some embodiments A and B are selected from A and B (A and B are selectively executed); in some embodiments A and B (A and B are both executed). When there are more branches such as A, B, C, and the like, the above is similar.

[0082] In some embodiments, the recitations "A or B" and the like can include the following technical solutions according to the case: in some embodiments A (A is executed regardless of B); in some embodiments B (B is executed regardless of A); in some embodiments A and B are selected from A and B (A and B are selectively executed). When there are more branches such as A, B, C, and the like, the above is similar.

[0083] In the embodiments of the present disclosure, the prefix words "first", "second", and the like are only used to distinguish different description objects, and do not constitute a limitation on the position, order, priority, quantity, or content of the description objects. The description of the description objects should refer to the description in the context of the claims or embodiments, and should not constitute an additional limitation because of the use of the prefix words. For example, the description object is "field", and the ordinal words before "field" in "first field" and "second field" do not limit the position or order between "fields", and "first" and "second" do not limit whether the "fields" modified thereby are in the same message or not, nor do they limit the order of "first field" and "second field". For another example, the description object is "level", and the ordinal words before "level" in "first level" and "second level" do not limit the priority between "levels". For another example, the quantity of the description object is not limited by the ordinal words, and can be one or more. For example, "first device", wherein the quantity of "device" can be one or more. In addition, the objects modified by different prefix words can be the same or different, for example, the description object is "device", and "first device" and "second device" can be the same device or different devices, and their types can be the same or different; for another example, the description object is "information", and "first information" and "second information" can be the same information or different information, and their contents can be the same or different.

[0084] In some embodiments, "comprising", "including", "to indicate", "carrying", can be interpreted as directly carrying A, or indirectly indicating A.

[0085] In some embodiments, the terms "in response to", "in response to determining", "in the case of", "when", "when", "if", "if" and the like can be replaced with each other.

[0086] In some embodiments, the terms "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", "above" and the like can be replaced with each other, and the terms "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", "below" and the like can be replaced with each other.

[0087] In some embodiments, the device and the like can be interpreted as physical or virtual, and the name is not limited to the name described in the embodiments. The terms "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject" and the like can be replaced with each other.

[0088] In some embodiments, "network" can be interpreted as a device (for example, access network device, core network device, etc.) contained in the network.

[0089] In some embodiments, the terms “access network device (AN device),” “radio access network device (RAN device),” “base station (BS),” “radio base station,” “fixed station,” “node,” “access point,” “transmission point (TP),” “reception point (RP),” “transmission / reception point (TRP),” “panel,” “antenna panel,” “antenna array,” “cell,” “macro cell,” “small cell,” “femto cell,” “pico cell,” “sector,” “cell group,” “serving cell,” “carrier,” “component carrier,” “bandwidth part (BWP),” “access network element,” and the like can be used interchangeably.

[0090] In some embodiments, the terms "terminal," "terminal device," "user equipment (UE)," "user terminal," "mobile station (MS)," "mobile terminal (MT)," "subscriber station," "mobile unit," "subscriber unit," "wireless unit," "remote unit," "mobile device," "wireless device," "wireless communication device," "remote device," "mobile subscriber station," "access terminal," "mobile terminal," "wireless terminal," "remote terminal," "handset," "user agent," "mobile client," "client," and so on can be replaced with each other.

[0091] In some embodiments, the access network device, the core network device, or the network device can be replaced with a terminal. For example, the embodiments of the present disclosure can also be applied to a structure in which communication between the access network device, the core network device, or the network device and the terminal is replaced with communication between a plurality of terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the terminal can also be configured to have all or part of the functions of the access network device. In addition, the terms "uplink," "downlink," and the like can also be replaced with terms corresponding to the inter-terminal communication (e.g., "side"). For example, the uplink channel, the downlink channel, and the like can be replaced with the side channel, and the uplink, the downlink, and the like can be replaced with the sidelink.

[0092] In some embodiments, the terminal can be replaced with the access network device, the core network device, or the network device. In this case, the access network device, the core network device, or the network device can also be configured to have all or part of the functions of the terminal.

[0093] In some embodiments, obtaining data, information, etc. can comply with laws and regulations of the country where the location is.

[0094] In some embodiments, data, information, etc. can be obtained after obtaining user consent.

[0095] In addition, each element, each row, or each column in the table of the embodiments of the present disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0096] FIG. 1 is an architecture diagram of a communication system provided by an embodiment of the present disclosure.

[0097] As shown in FIG. 1, the communication system 100 includes a terminal 101 and a network device 102.

[0098] In some embodiments, the terminal 101 includes at least one of a mobile phone, a wearable device, an Internet of Things device, a communication-capable automobile, a smart automobile, a Pad, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, etc., but is not limited thereto.

[0099] In some embodiments, the network device 102 can include at least one of an access network device and a core network device.

[0100] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network, and can include at least one of an evolved NodeB (eNB) in a 5G communication system, a next generation eNB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud RAN, a base station in other communication systems, an access node in a Wi-Fi system, but is not limited thereto.

[0101] In some embodiments, the access network device can be a satellite.

[0102] In some embodiments, the core network device can be one device including all or part of the first network element, the second network element, etc., or can be multiple devices or device groups including all or part of the first network element, the second network element, etc., respectively. The network function can be virtual or physical. The core network includes, for example, at least one of an evolved packet core (EPC), a 5G core network (5GCN), and a next generation core (NGC).

[0103] In some embodiments, the first network element is, for example, a network data analytics function (NWDAF)

[0104] In some embodiments, the second network element is, for example, an access and mobility management function (AMF).

[0105] In some embodiments, the first network element aims to support network automation and intelligence, optimize network performance, manage network resources, and provide better user experience by analyzing and utilizing network data.

[0106] In some embodiments, the NWDAF is a key component in the fifth generation (5G) network architecture, which is defined in the 5G standard by the 3rd generation partnership project (3GPP).

[0107] In some embodiments, the second network element is used for access control and mobility management of terminal access to the operator network, for example, including functions such as mobile state management, allocation of user temporary identity, authentication and authorization of users, and the name is not limited thereto.

[0108] It can be understood that the communication system described in the embodiments of the present disclosure is for more clearly illustrating the technical solutions of the embodiments of the present disclosure, and does not constitute a limitation on the technical solutions proposed by the embodiments of the present disclosure. It can be known by those skilled in the art that, with the evolution of system architecture and the appearance of new business scenarios, the technical solutions proposed by the embodiments of the present disclosure are also applicable to similar technical problems.

[0109] The following embodiments of the present disclosure can be applied to the communication system 100 shown in FIG. 1 or part of the subject, but are not limited thereto. The subjects shown in FIG. 1 are exemplary, and the communication system can include all or part of the subjects in FIG. 1, or other subjects other than FIG. 1. The number and form of each subject is arbitrary, each subject can be physical or virtual, the connection relationship between each subject is exemplary, each subject can not be connected or can be connected, the connection can be in any way, can be direct connection or indirect connection, can be wired connection or wireless connection.

[0110] Embodiments of the present disclosure can be applied to long term evolution (LTE), LTE-advanced (LTE-A), LTE-beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new-radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), global System for mobile communications (GSM (registered trademark)), CDMA2000, ultra mobile broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, ultra-wide band (UWB), bluetooth (bluetooth (registered trademark)), public land mobile network (PLMN) network, device-to-device (D2D) system, machine to machine (M2M) system, internet of things (IoT) system, vehicle-to-everything (V2X), system using other communication methods, next-generation system expanded based on them, and the like. Further, a plurality of systems can be applied in combination (for example, combination of LTE or LTE-A and 5G, and the like).

[0111] In the beam hopping technology, it is required to flexibly change the pointing direction of the beam using the phased array antenna, and especially the accuracy of the pointing direction of the narrow service beam is required to be high. The beam center offset and beam diameter stretching problems caused by the service beam pointing error can cause the misalignment of the cells and beams actually serving the cells planned under the view of the network device (for example, a satellite), as shown in FIG. 2. The ellipses with A0, B0, and C0 as the centers represent the cells planned under the view of the network device, and the cell reference points are A0, B0, and C0 respectively. The ellipses with A1 and B1 as the centers represent the actually serving cells under the beam pointing error, and the offset cell reference points are A1 and B1 respectively. The five-pointed star represents the terminal that cannot be successfully paged at one time due to the beam pointing error.

[0112] The network device configures the corresponding SIB19 information of the A0 cell (the ellipse with A0 as the center, the same below) to the beam through control, and indicates the terminal to communicate with the network device in the specified time-frequency resource. When the network device pings the terminal for the first time through the A0 corresponding service beam, the actual beam range on the ground is the A1 cell (the ellipse with A1 as the center, the same below), and the terminal is in the offset B1 cell of the B0 cell (the ellipse with B0 as the center, the same below), which causes the terminal of the five-pointed star to fail to be successfully paged.

[0113] Therefore, in the related art, the beam pointing error can cause the misalignment of the cell coverage range, so that the terminal cannot be accurately provided with service, which is a problem to be solved.

[0114] In some embodiments, in the case of unsuccessfully paging the terminal, the network device side pings multiple times through the expansion of the paging range until the connection with the terminal is established to provide service, which will cause the following problems:

[0115] 1) The terminal that should be served by the A0 corresponding service beam is finally served by the B1 corresponding service beam, which wastes the time-frequency resource allocated to the A0 corresponding service beam, occupies the time-frequency resource allocated to the B1 corresponding service beam, and causes the management complexity to increase;

[0116] 2) If the network device plans to meet the service beam orthogonality, the A0 and C0 corresponding service beams simultaneously serve the terminal without causing adjacent channel interference, at this time, the terminal that should be served by the service beam A0 is finally served by the service beam B1, so that the service beam corresponding to C0 is adjacent, which can destroy the orthogonality and cause the problem of enhanced adjacent channel interference.

[0117] Based on this, the embodiment of the disclosure provides a beam pointing error correction method. The method executed by a network device comprises: determining a first beam used for successfully paging a terminal, wherein the first beam is a beam used for expanding a paging area in a case that paging the terminal using a second beam fails; sending a first message to the terminal, wherein the first message is used for instructing the terminal to report beam error information; receiving a second message sent by the terminal, wherein the second message comprises a first position of the terminal and an elevation angle, and the elevation angle is determined by the terminal according to a position of the network device and the second beam; and correcting a coverage range of a first cell to which the first beam belongs according to the first position and the elevation angle. Thus, the cell coverage range dislocation caused by the beam pointing error can be corrected, so as to accurately provide service for the terminal, and avoid the problems of resource occupation, management complexity increase, and adjacent channel interference enhancement.

[0118] FIG. 3 is an interaction schematic diagram of a beam pointing error correction method according to an embodiment of the disclosure. As shown in FIG. 3, the embodiment of the disclosure relates to a beam pointing error correction method, and the method comprises:

[0119] S301, the terminal determines that a distance offset from a third position exceeds a distance threshold, and sends a third message to the network device, wherein the third message comprises a second position of the terminal, and the third position is a last reported position of the terminal to the network device.

[0120] In the embodiment of the disclosure, the terminal can report or update the position information of the terminal to the network device by itself, or can also update or report the position information based on the indication of the network device.

[0121] The last reported position of the terminal to the network device is the third position, and in a case that the distance offset from the third position exceeds the distance threshold, the terminal can update its position to the network device. The terminal can send a third message to the network device, and the third message comprises a second position of the terminal, i.e., a current position of the terminal, so as to realize position updating.

[0122] In some embodiments, the distance between the second position and the first position is the distance threshold.

[0123] In some embodiments, the second position is used by the network device to determine to page the terminal using the second beam.

[0124] It can be understood that the network device receives the third message sent by the terminal, determines the second position of the terminal, and can determine to select a beam capable of covering the terminal to page the terminal in a case that there is a need to send service data to the terminal, i.e., can determine to page the terminal using the second beam.

[0125] It can be understood that the network device broadcasts a system information block (SIB) 19, including auxiliary information for non-terrestrial network (NTN) access, and the terminal can obtain the coordinate of the current network device, the serving cell reference point, the handover cell list and the like according to the received auxiliary information, wherein the terminal can report the location information to the network device when performing cell handover.

[0126] In the embodiments of the present disclosure, when the terminal determines that the distance offset from the third position exceeds the distance threshold and no cell handover occurs, the third message is sent to the network device.

[0127] In some embodiments, the SIB19 field is defined as shown below.

[0128] 1) ntn-Config provides parameters required by the UE to access through the NTN, such as ephemeris data, common timing advance parameters, and the validity duration of uplink synchronization information.

[0129] 2) t-Service indicates when the NTN cell stops serving the current coverage area.

[0130] 3) referenceLocation indicates the reference point of the serving cell in the NTN fixed beam system.

[0131] 4) distanceThresh is a trigger threshold based on location measurement, indicating the distance from the reference location of the serving cell, with a unit of 50m.

[0132] 5) ntn-NeighCellConfigList provides a list of NTN neighboring cells, including ntn-Config, carrier frequency, and PhysCellID.

[0133] 6) movingReferenceLocation indicates the reference point of the serving cell in the NTN fixed beam system.

[0134] 7) satSwitchWithReSync provides parameters required for re-synchronization when switching target satellites.

[0135] In some embodiments, the ephemeris information field EphemerisInfo contained in ntn-Config in SIB19 carries satellite position and velocity and satellite orbit parameters, as shown below.

[0136] Wherein, the terminal obtains the three-dimensional coordinates (positionX, positionY, positionZ) of the satellite in the earth-centered, earth-fixed (ECEF) coordinate system through the satellite position velocity field PositionVelocity, as shown below

[0137] It can be understood that the terminal can determine the elevation angle according to the coordinates of the network device and the reference point of the beam.

[0138] In some embodiments, the distance threshold is related to the elevation angle, and different elevation angles correspond to different distance thresholds.

[0139] For example, when the elevation angle is 60°, the distance threshold is 14 kilometers (km). When the elevation angle is 30°, the distance threshold is 45 km.

[0140] It can also be understood that the terminal can determine the elevation angle according to the coordinates of the network device and the reference point of the beam, and the terminal can determine the coverage range of the service cell corresponding to the beam according to the elevation angle and the reference point of the beam.

[0141] In some embodiments, the distance threshold is related to the shortest distance from the location of the terminal to the edge of the coverage range of the service cell.

[0142] For example, the distance threshold is the shortest distance from the location of the terminal to the edge of the coverage range of the service cell. Or the distance threshold is half of the shortest distance from the location of the terminal to the edge of the coverage range of the service cell.

[0143] It should be noted that the above examples are only illustrative and not specific limitations on the embodiments of the present disclosure. The distance threshold can also be other values, and the embodiments of the present disclosure do not make specific limitations.

[0144] S302, the network device uses the second beam to page the terminal according to the second position of the terminal.

[0145] In the embodiments of the present disclosure, the network device determines the second position of the terminal, and can determine to use the second beam to page the terminal.

[0146] It can be understood that the network device can determine the coverage range of the cell to which the beam belongs, and in the case of determining the second position of the terminal, if the coverage range of the second beam includes the second position, it can be determined to use the second beam to page the terminal.

[0147] In the embodiments of the present disclosure, the network device can use the second beam to page the terminal according to the second location of the terminal if there is a need to send service data to the terminal.

[0148] In some embodiments, if the network device receives a paging response when using the second beam to page the terminal, the network device can establish a communication connection with the terminal device and send service data to the terminal.

[0149] In some embodiments, the second beam is a service beam, and the second beam is a gaze beam or a fixed beam.

[0150] In S303, the network device determines that no paging response is received, expands the paging area, and uses the first beam to page the terminal.

[0151] In the embodiments of the present disclosure, the network device can expand the paging area and use the first beam to page the terminal if no paging response is received when the network device pages the terminal.

[0152] In some embodiments, the network device uses the second beam to page the terminal, does not receive a paging response, and determines to expand the paging area and use the first beam to page the terminal.

[0153] In some embodiments, the coverage range corresponding to the first beam (i.e., the coverage range of the cell to which the first beam belongs) includes an area outside the coverage range corresponding to the second beam (i.e., the coverage range of the cell to which the second beam belongs).

[0154] In some embodiments, the paging range of the first beam includes part or all of the range of a circle with the second location as the center and a threshold value as the radius.

[0155] In some embodiments, the first beam is a service beam, and the first beam is a gaze beam or a fixed beam.

[0156] In some embodiments, the first beam and the second beam are both gaze beams, or the first beam and the second beam are both fixed beams, or one of the first beam and the second beam is a gaze beam and the other is a fixed beam.

[0157] In S304, the network device determines the first beam used to successfully page the terminal.

[0158] In the embodiments of the present disclosure, if the network device receives a paging response sent by the terminal when using the first beam to page the terminal, the network device can determine the first beam used to successfully page the terminal.

[0159] In some embodiments, the network device uses the second beam to page the terminal, does not receive a paging response, determines to expand the paging area and use the first beam to page the terminal, and if a paging response is received, can determine the first beam used to successfully page the terminal.

[0160] In some embodiments, the network device uses the first beam to page the terminal, receives a radio resource control (RRC) connection application sent by the terminal, and determines that a paging response is received.

[0161] In some embodiments, the network device receives an RRC connection application sent by the terminal, determines to establish an RRC connection with the terminal, and implements establishment of a communication connection with the terminal.

[0162] S305, the network device sends a first message to the terminal, wherein the first message is used to instruct the terminal to report beam error information.

[0163] In the embodiments of the present disclosure, in the case that the network device successfully pages the terminal using the first beam, the network device can establish a communication connection with the terminal and send a first message to the terminal.

[0164] The first message is used to instruct the terminal to report beam error information.

[0165] In some embodiments, the beam error information includes at least one of the following: position information of the terminal, elevation angle information, and information of a second beam.

[0166] It can be understood that the beam error information includes information of the second beam, which can be a reference point of the second beam.

[0167] In the embodiments of the present disclosure, the network device sends the first message to the terminal, which can instruct the terminal to report the current position information of the terminal.

[0168] In the embodiments of the present disclosure, the network device sends the first message to the terminal, which can instruct the terminal to report the elevation angle information.

[0169] In the embodiments of the present disclosure, the network device sends the first message to the terminal, which can instruct the terminal to report the information of the second beam, that is, to report the reference point of the second beam.

[0170] S306, the terminal determines the elevation angle according to the coordinates of the network device and the second beam.

[0171] It can be understood that the terminal can determine the coordinates of the network device and the second beam according to the SIB19 sent by the network device.

[0172] It should be noted that the second beam described in the embodiments of the present disclosure can be understood as a reference point of the second beam.

[0173] In the case that the terminal determines the coordinates of the network device and the second beam, the terminal can determine the elevation angle according to the coordinates of the network device and the second beam.

[0174] It should be noted that S306 can be performed in exchange with any one of S302 to S305 or simultaneously.

[0175] S307, the terminal sends a second message to the network device, wherein the second message includes the first position and the elevation angle of the terminal at present.

[0176] In the embodiments of the present disclosure, the terminal can send the second message to the network device, and report the first position and the elevation angle of the terminal at present to the network device.

[0177] In some embodiments, the terminal sends the second message to the network device in the case that the terminal receives the first message sent by the network device.

[0178] The first message is used to instruct the terminal to report the beam error information, and the second message includes the first position and the elevation angle of the terminal at present.

[0179] In some embodiments, the first message is also used to instruct the terminal to report the beam information, and the second message further includes the second beam, so that the network device can determine the second beam according to the second message.

[0180] S308, the network device corrects the coverage range of the first cell to which the first beam belongs according to the first position and the elevation angle.

[0181] In the embodiments of the present disclosure, the network device receives the second message sent by the terminal, determines the first position and the elevation angle of the terminal at present, and can correct the coverage range of the first cell to which the first beam belongs according to the first position and the elevation angle.

[0182] It can be understood that when the network device determines to page the terminal using the second beam according to the second position of the terminal, the paging fails, and then the paging range is expanded to use the first beam to page the terminal and successfully page the terminal. When the network device successfully pages the terminal, the first position and the elevation angle of the terminal at present are obtained, and the coverage range of the first cell to which the first beam belongs can be corrected according to the first position and the elevation angle.

[0183] In some embodiments, the network device corrects the coverage range of the first cell to which the first beam belongs according to the first position and the elevation angle, including: determining the coverage range of the first cell according to the elevation angle and the first beam; determining that the first position is not within the coverage range of the first cell, and expanding the coverage range of the first cell to include the first position.

[0184] In the embodiments of the present disclosure, the network device determines the coverage range of the first cell to which the first beam belongs according to the elevation angle and the first beam, and expands the coverage range of the first cell to include the first position if it is determined that the first position is not within the coverage range of the first cell.

[0185] In some embodiments, the network device determines the coverage range of the first cell to which the first beam belongs according to the elevation angle and the first beam reference point.

[0186] It can be understood that, since the network device successfully pages the terminal using the first beam, if the first position of the terminal is not within the coverage range of the first cell to which the first beam belongs, it is accurate to correct the coverage range of the first cell to which the first beam belongs to include the first position of the terminal.

[0187] In some embodiments, the first position is added to the coverage range of the first cell, so as to expand the coverage range of the first cell to include the first position.

[0188] In some embodiments, the coverage range of the first cell is adjusted according to the first position, so as to expand the coverage range of the first cell to include the first position.

[0189] Exemplarily, the coverage range of the first cell is uniformly expanded as a whole to include the first position.

[0190] S309, the network device corrects the coverage range of the second cell to which the second beam belongs according to the first position and the elevation angle.

[0191] In the embodiments of the present disclosure, the network device receives the second message sent by the terminal, determines the first position, the elevation angle and the second beam of the terminal, and can correct the coverage range of the second cell to which the second beam belongs according to the first position and the elevation angle.

[0192] It can be understood that, when the network device determines to page the terminal using the second beam according to the second position of the terminal, paging fails, and then the paging range is expanded to page the terminal using the first beam, and the terminal is successfully paged. When the network device successfully pages the terminal, the first position, the elevation angle and the second beam of the terminal are obtained, and the coverage range of the second cell to which the second beam belongs can be corrected according to the first position and the elevation angle.

[0193] In some embodiments, the network device corrects the coverage range of the second cell to which the second beam belongs according to the first position and the elevation angle, including: determining the coverage range of the second cell according to the elevation angle and the second beam; determining that the first position is within the coverage range of the second cell, and reducing the coverage range of the second cell to not include the first position.

[0194] In the embodiments of the present disclosure, the network device determines the coverage range of the second cell to which the second beam belongs according to the elevation angle and the second beam, and if it is determined that the first position is within the coverage range of the second cell, the coverage range of the second cell is reduced to not include the first position.

[0195] In some embodiments, the network device determines the coverage range of the second cell to which the second beam belongs according to the elevation angle and the second beam reference point.

[0196] It can be understood that, since the network device fails to successfully page the terminal by using the second beam, if the first position of the terminal is currently within the coverage range of the second cell to which the second beam belongs, it is accurate to correct the coverage range of the second cell to which the second beam belongs to not include the first position of the terminal.

[0197] In some embodiments, the first position is deleted from the coverage range of the second cell, so as to realize the reduction of the coverage range of the second cell to not include the first position.

[0198] In some embodiments, the coverage range of the second cell is adjusted according to the first position, so as to realize the reduction of the coverage range of the second cell to not include the first position.

[0199] Exemplarily, the coverage range of the second cell is uniformly reduced as a whole to not include the first position.

[0200] S310, the network device adjusts the skip beam pattern according to the elevation angle, the corrected first cell and the corrected second cell.

[0201] In the embodiments of the present disclosure, when the network device determines the corrected first cell and the corrected second cell, the network device can adjust the skip beam pattern according to the elevation angle, the corrected first cell and the corrected second cell.

[0202] In some embodiments, the network device determines the accurate elevation angle and beam position relationship diagram according to the elevation angle, the corrected first cell and the corrected second cell, and adjusts the skip beam pattern.

[0203] S311, the network device determines the resource configuration information according to the coverage range of the corrected first cell, the coverage range of the corrected second cell and the adjusted skip beam pattern.

[0204] In the embodiments of the present disclosure, when the network device determines the corrected first cell, the corrected second cell and the adjusted skip beam pattern, the network device can determine the resource configuration information according to the coverage range of the corrected first cell, the coverage range of the corrected second cell and the adjusted skip beam pattern.

[0205] S312, the network device sends the resource configuration information to the terminal.

[0206] In the embodiments of the present disclosure, when the network device determines the resource configuration information, the network device can send the resource configuration information to the terminal.

[0207] In some embodiments, the network device sends SIB19 to the terminal, wherein the SIB19 includes the resource configuration information.

[0208] S313, the terminal determines the transmission resource according to the resource configuration information.

[0209] In the embodiments of the present disclosure, the terminal receives the resource configuration information sent by the network device, and determines the transmission resource according to the resource configuration information.

[0210] In some embodiments, the transmission resource includes a time slot and / or a frequency band.

[0211] In the embodiments of the present disclosure, the terminal determines the time slot and / or the frequency band used for service data transmission according to the resource configuration information.

[0212] S314, the terminal sends service data to the network device using the transmission resource.

[0213] In the embodiments of the present disclosure, the terminal can send service data to the network device using the transmission resource after determining the transmission resource.

[0214] In some embodiments, the terminal determines the time slot and / or the frequency band used for service transmission, and sends service data to the network device using the determined time slot and / or frequency band.

[0215] In some embodiments, the names of information and the like are not limited to the names described in the embodiments, and the terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "code point", "bit", "data", "program", "chip", and the like can be replaced with each other.

[0216] In some embodiments, "acquire", "obtain", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be replaced with each other, which can be interpreted as receiving from other subjects, obtaining from protocols, obtaining from higher layers, processing to obtain by itself, and various meanings such as autonomous implementation.

[0217] In some embodiments, the terms such as "send", "transmit", "report", "issue", "transmit", "bidirectional transmission", "send and / or receive" can be replaced with each other.

[0218] In some embodiments, the terms "certain", "preset", "pre-set", "set", "indicated", "a certain", "any", "first", and the like can be replaced with each other, and "certain A", "preset A", "pre-set A", "set A", "indicated A", "a certain A", "any A", "first A" can be interpreted as A predetermined in a protocol or the like, or A obtained by setting, configuration, or indication, or a certain A, any A, or first A, but are not limited thereto.

[0219] In some embodiments, the determination or judgment can be made by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values (for example, comparison with a predetermined value), but is not limited thereto.

[0220] By implementing the embodiments of the present disclosure, the cell coverage range misalignment caused by the beam pointing error can be corrected to accurately provide service to the terminal, and the problems of resource occupation, management complexity increase, and adjacent channel interference enhancement can be avoided.

[0221] The communication method related to the embodiments of the present disclosure can include at least one of S301-S314. For example, S301 can be implemented as an independent embodiment, S302 can be implemented as an independent embodiment, S303 can be implemented as an independent embodiment, S304 can be implemented as an independent embodiment, S305 can be implemented as an independent embodiment, S306 can be implemented as an independent embodiment, S307 can be implemented as an independent embodiment, S308 can be implemented as an independent embodiment, S309 can be implemented as an independent embodiment, S310 can be implemented as an independent embodiment, S311 can be implemented as an independent embodiment, S312 can be implemented as an independent embodiment, S313 can be implemented as an independent embodiment, S314 can be implemented as an independent embodiment, S301+S302 can be implemented as an independent embodiment, S301+S302+S303 can be implemented as an independent embodiment, S304+S305+S306+S307+S308 can be implemented as an independent embodiment, S304+S305+S306+S307+S308 can be implemented as an independent embodiment, S304+S305+S306+S307+S308+S309 can be implemented as an independent embodiment, S303+S304+S305+S306+S307+S308+S309+S310 can be implemented as an independent embodiment, S304+S305+S306+S307+S308+S309+S310+S311 can be implemented as an independent embodiment, S304+S305+S306+S307+S308+S309+S310+S311+S312 can be implemented as an independent embodiment, S304+S305+S306+S307+S308+S309+S310+S311+S312+S313 can be implemented as an independent embodiment, S304+S305+S306+S307+S308+S309+S310+S311+S312+S313+S314 can be implemented as an independent embodiment, S303+S304+S305+S306+S307+S308 can be implemented as an independent embodiment, S303+S304+S305+S306+S307+S308+S309 can be implemented as an independent embodiment, S303+S304+S305+S306+S307+S308+S309+S310 can be implemented as an independent embodiment, S303+S304+S305+S306+S307+S308+S309+S310+S311 can be implemented as an independent embodiment, S303+S304+S305+S306+S307+S308+S309+S310+S311+S312 can be implemented as an independent embodiment,S303+S304+S305+S306+S307+S308+S309+S310+S311+S312+S313 can be implemented as an independent embodiment, S303+S304+S305+S306+S307+S308+S309+S310+S311+S312+S313+S314 can be implemented as an independent embodiment, S302+S303+S304+S305+S306+S307+S308 can be implemented as an independent embodiment, S302+S303+S304+S305+S306+S307+S308+S309 can be implemented as an independent embodiment, S302+S303+S304+S305+S306+S307+S308+S309+S310 can be implemented as an independent embodiment, S302+S303+S304+S305+S306+S307+S308+S309+S310+S311 can be implemented as an independent embodiment, S302+S303+S304+S305+S306+S307+S308+S309+S310+S311+S312 can be implemented as an independent embodiment, S302+S303+S304+S305+S306+S307+S308+S309+S310+S311+S312+S313 can be implemented as an independent embodiment, S302+S303+S304+S305+S306+S307+S308+S309+S310+S311+S312+S313+S314 can be implemented as an independent embodiment, but not limited thereto.

[0222] In some embodiments, S301 is optional, and one or more of the steps can be omitted or replaced in different embodiments.

[0223] In some embodiments, S301, S309, S310, S311, S312, S313, S314 are optional, and one or more of the steps can be omitted or replaced in different embodiments.

[0224] In some embodiments, S301, S310, S311, S312, S313, S314 are optional, and one or more of the steps can be omitted or replaced in different embodiments.

[0225] In some embodiments, S301, S313, S314 are optional, and one or more of the steps can be omitted or replaced in different embodiments.

[0226] In some embodiments, S306 and S302 can exchange order or be executed simultaneously, S306 and S303 can exchange order or be executed simultaneously, S306 and S304 can exchange order or be executed simultaneously, and S306 and S305 can exchange order or be executed simultaneously.

[0227] In some embodiments, other optional implementations can be found in the description before or after the corresponding description of FIG. 3.

[0228] FIG. 4A is a flow diagram of a beam pointing error correction method according to an embodiment of the present disclosure. As shown in FIG. 4A, the embodiment of the present disclosure relates to a beam pointing error correction method, the method is executed by a network device, and the method comprises:

[0229] S401A, determining a first beam used for successfully paging a terminal.

[0230] In some embodiments, optional implementations of S401A can be found in the optional implementations of S304 of FIG. 3 and other associated parts in the embodiments related to FIG. 3, which will not be repeated here.

[0231] In some embodiments, the first beam is a beam used for expanding the paging area in the case that the terminal is failed to be paged using the second beam.

[0232] S402A, sending a first message.

[0233] In some embodiments, optional implementations of S402A can be found in the optional implementations of S305 of FIG. 3 and other associated parts in the embodiments related to FIG. 3, which will not be repeated here.

[0234] In some embodiments, the first message is used to instruct the terminal to report beam error information.

[0235] In some embodiments, the network device sends the first message to the terminal, but is not limited thereto, and can also send the first message to other subjects.

[0236] Optionally, the first message is used for the terminal to send a second message to the network device to obtain the current first position and elevation angle of the terminal. Optional implementations thereof can be found in the optional implementations of S307 of FIG. 3 and other associated parts in the embodiments related to FIG. 3, which will not be repeated here.

[0237] S403A, obtaining a second message.

[0238] In some embodiments, optional implementations of S403A can be found in the optional implementations of S307 of FIG. 3 and other associated parts in the embodiments related to FIG. 4, which will not be repeated here.

[0239] In some embodiments, the network device receives the second message sent by the terminal, but is not limited thereto, and can also receive the second message sent by other subjects.

[0240] In some embodiments, the network device acquires the second message specified by the protocol.

[0241] In some embodiments, the network device acquires the second message from upper layer(s).

[0242] In some embodiments, the network device processes to obtain the second message.

[0243] In some embodiments, S403A is omitted, and the network device autonomously implements the function indicated by the second message, or the above function is default or default.

[0244] In some embodiments, the second message includes the current first position of the terminal and the elevation angle, and the elevation angle is determined by the terminal according to the position of the network device and the second beam.

[0245] S404A, correcting the coverage range of the first cell to which the first beam belongs according to the first position and the elevation angle.

[0246] The optional implementation of S404A can refer to the optional implementation of S308 of FIG. 3 and other associated parts in the embodiments involved in FIG. 3, which will not be repeated here.

[0247] In some embodiments, the network device corrects the coverage range of the first cell to which the first beam belongs according to the first position and the elevation angle, including: determining the coverage range of the first cell according to the elevation angle and the first beam; determining that the first position is not within the coverage range of the first cell, and expanding the coverage range of the first cell to include the first position.

[0248] S405A, correcting the coverage range of the second cell to which the second beam belongs according to the first position and the elevation angle.

[0249] The optional implementation of S405A can refer to the optional implementation of S309 of FIG. 3 and other associated parts in the embodiments involved in FIG. 3, which will not be repeated here.

[0250] In some embodiments, the network device corrects the coverage range of the second cell to which the second beam belongs according to the first position and the elevation angle, including: determining the coverage range of the second cell according to the elevation angle and the second beam; determining that the first position is within the coverage range of the second cell, and reducing the coverage range of the second cell to not include the first position.

[0251] By implementing the embodiments of the present disclosure, the cell coverage range misalignment caused by the beam pointing error can be corrected, so as to accurately provide service for the terminal, and avoid the problems of resource occupation, management complexity increase, and adjacent channel interference enhancement.

[0252] The communication method related to the embodiments of the present disclosure can include at least one of S401A-S405A. For example, S401A can be implemented as an independent embodiment, S402A can be implemented as an independent embodiment, S403A can be implemented as an independent embodiment, S404A can be implemented as an independent embodiment, S405A can be implemented as an independent embodiment, S401A+S402A+S403A+S404A can be implemented as an independent embodiment, S401A+S402A+S403A+S405A can be implemented as an independent embodiment, but not limited thereto.

[0253] In some embodiments, S405A is optional, and one or more of the steps can be omitted or replaced in different embodiments.

[0254] In some embodiments, other optional implementations described before or after the description corresponding to FIG. 4A can be referred to.

[0255] FIG. 4B is a flow diagram of a beam pointing error correction method according to an embodiment of the present disclosure. As shown in FIG. 4B, the embodiments of the present disclosure relate to a beam pointing error correction method, the method is performed by a network device, and the method includes:

[0256] S401B, obtaining a third message.

[0257] The optional implementation of S401B can be referred to the optional implementation of S301 of FIG. 3 and other associated parts in the embodiments related to FIG. 3, which will not be described here.

[0258] In some embodiments, the network device receives the third message sent by the terminal, but not limited thereto, and can also receive the third message sent by other subjects.

[0259] In some embodiments, the network device obtains the third message specified by the protocol.

[0260] In some embodiments, the network device obtains the third message from a higher layer.

[0261] In some embodiments, the network device processes to obtain the third message.

[0262] In some embodiments, S401B is omitted, and the network device autonomously implements the function indicated by the third message, or the above function is default or default.

[0263] In some embodiments, the third message comprises a second position of the terminal, the third message is sent by the network device in a case that a distance between the third position and the offset third position exceeds a distance threshold, and the third position is a last reported position of the terminal to the network device.

[0264] S402B, the terminal is paged using the second beam according to the second position of the terminal.

[0265] The optional implementation of S402B can refer to the optional implementation of S302 of FIG. 3 and other associated parts in the embodiments involved in FIG. 3, which will not be repeated here.

[0266] S403B, the paging area is expanded, and the terminal is paged using the first beam.

[0267] The optional implementation of S403B can refer to the optional implementation of S303 of FIG. 3 and other associated parts in the embodiments involved in FIG. 3, which will not be repeated here.

[0268] S404B, the first beam used for successfully paging the terminal is determined.

[0269] The optional implementation of S404B can refer to the optional implementation of S304 of FIG. 3 and other associated parts in the embodiments involved in FIG. 3, which will not be repeated here.

[0270] In some embodiments, the network device determines the first beam used for successfully paging the terminal, and then sends the first message, and further obtains the second message, determines the first position and the elevation angle, corrects the coverage range of the first cell to which the first beam belongs according to the first position and the elevation angle, and corrects the coverage range of the second cell to which the second beam belongs according to the first position and the elevation angle. The above-mentioned content can refer to the content described in the above-mentioned embodiments, which will not be repeated here.

[0271] By implementing the embodiments of the present disclosure, the cell coverage range misalignment caused by beam pointing error can be corrected to accurately provide service for the terminal, and the problems of resource occupation, management complexity and adjacent channel interference enhancement can be avoided.

[0272] The communication method related to the embodiments of the present disclosure can comprise at least one of S401B-S404B. For example, S401B can be implemented as an independent embodiment, S402B can be implemented as an independent embodiment, S403B can be implemented as an independent embodiment, S404B can be implemented as an independent embodiment, S402B+S403B+S404B can be implemented as an independent embodiment, but is not limited thereto.

[0273] In some embodiments, S401B is optional, and one or more of the steps can be omitted or replaced in different embodiments.

[0274] In some embodiments, other optional implementations can be found in the description before or after the corresponding description of FIG. 4B.

[0275] FIG. 4C is a flow diagram of a beam pointing error correction method according to an embodiment of the present disclosure. As shown in FIG. 4C, the embodiment of the present disclosure relates to a beam pointing error correction method, the method is performed by a network device, and the method comprises:

[0276] S401C, adjusting the skip beam pattern according to the elevation angle, the corrected first cell, and the corrected second cell.

[0277] The optional implementation of S401C can be found in the optional implementation of S310 of FIG. 3 and other associated parts in the embodiments related to FIG. 3, which will not be repeated here.

[0278] In some embodiments, the network device determines the first beam used for successfully paging the terminal, then sends the first message, and further obtains the second message to determine the first position and the elevation angle, to correct the coverage range of the first cell to which the first beam belongs according to the first position and the elevation angle, and to correct the coverage range of the second cell to which the second beam belongs according to the first position and the elevation angle, so as to determine the elevation angle, the corrected first cell, and the corrected second cell, to adjust the skip beam pattern according to the elevation angle, the corrected first cell, and the corrected second cell. The content can be found in the above embodiments, which will not be repeated here.

[0279] S402C, determining the resource configuration information according to the coverage range of the corrected first cell, the coverage range of the corrected second cell, and the adjusted skip beam pattern.

[0280] The optional implementation of S402C can be found in the optional implementation of S311 of FIG. 3 and other associated parts in the embodiments related to FIG. 4, which will not be repeated here.

[0281] S403C, sending the resource configuration information.

[0282] The optional implementation of S403C can be found in the optional implementation of S312 of FIG. 3 and other associated parts in the embodiments related to FIG. 3, which will not be repeated here.

[0283] In some embodiments, the resource configuration information is used by the terminal to determine the transmission resource used for transmitting service data.

[0284] In some embodiments, the network device sends the resource configuration information to the terminal, but is not limited thereto, and can send the resource configuration information to other subjects.

[0285] Optionally, the resource configuration information is used by the terminal to determine the transmission resource. Its optional implementation can be found in the optional implementation of S313 of FIG. 3 and other associated parts in the embodiments involved in FIG. 3, which will not be repeated here.

[0286] S404C, obtaining the service data.

[0287] Optionally, the optional implementation of S404C can be found in the optional implementation of S314 of FIG. 3 and other associated parts in the embodiments involved in FIG. 3, which will not be repeated here.

[0288] In some embodiments, the network device receives the service data sent by the terminal using the transmission resource, wherein the transmission resource is determined by the terminal according to the resource configuration information.

[0289] In some embodiments, the network device receives the service data sent by the terminal, but is not limited thereto, and can receive the service data sent by other subjects.

[0290] In some embodiments, the network device obtains the service data specified by the protocol.

[0291] In some embodiments, the network device obtains the service data from a higher layer.

[0292] In some embodiments, the network device processes to obtain the service data.

[0293] In some embodiments, S404C is omitted, and the network device autonomously implements the function indicated by the service data, or the above function is default or default.

[0294] The communication method involved in the embodiments of the present disclosure can include at least one of S401C-S404C. For example, S401C can be implemented as an independent embodiment, S402C can be implemented as an independent embodiment, S403C can be implemented as an independent embodiment, S404C can be implemented as an independent embodiment, S401C+S402C+S403C can be implemented as an independent embodiment, but is not limited thereto.

[0295] In some embodiments, S404C is optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0296] In some embodiments, other optional implementations can be found in the description before or after FIG. 4C.

[0297] FIG. 5A is a flow diagram of a beam pointing error correction method according to an embodiment of the present disclosure. As shown in FIG. 5A, the embodiment of the present disclosure relates to a beam pointing error correction method, the method is performed by a terminal, and the method comprises the following steps:

[0298] S501A, obtaining a first message.

[0299] The optional implementation of S501A can refer to the optional implementation of S305 in FIG. 3 and other associated parts in the embodiments related to FIG. 3, which will not be repeated here.

[0300] In some embodiments, the terminal receives the first message sent by the network device, but is not limited thereto, and can also receive the first message sent by other subjects.

[0301] In some embodiments, the terminal obtains the first message specified by a protocol.

[0302] In some embodiments, the terminal obtains the first message from a higher layer.

[0303] In some embodiments, the terminal processes to obtain the first message.

[0304] In some embodiments, S501A is omitted, and the terminal autonomously implements the function indicated by the first message, or the above function is default or default.

[0305] In some embodiments, the first message is used to instruct the terminal to report beam error information, and the first message is sent by the network device in the case that the network device successfully pages the terminal using the first beam to expand the paging area after failing to page the terminal using the second beam.

[0306] S502A, determining an elevation angle according to the position of the network device and the second beam.

[0307] The optional implementation of S502A can refer to the optional implementation of S306 in FIG. 3 and other associated parts in the embodiments related to FIG. 3, which will not be repeated here.

[0308] S503A, sending a second message.

[0309] The optional implementation of S503A can refer to the optional implementation of S307 in FIG. 3 and other associated parts in the embodiments related to FIG. 3, which will not be repeated here.

[0310] In some embodiments, the second message includes a first position and an elevation angle of the terminal at present, and the first position and the elevation angle are used for the network device to correct the coverage range of a first cell to which the first beam belongs.

[0311] In some embodiments, the terminal sends the second message to the network device, but is not limited thereto, and can send the second message to other subjects.

[0312] Optionally, the second message is used by the network device to correct the coverage range of the first cell to which the first beam belongs, and correct the coverage range of the second cell to which the second beam belongs. The optional implementation manner can be referred to the optional implementation manners of S308 and S309 in FIG. 3 and other associated parts in the embodiments involved in FIG. 3, which will not be described here.

[0313] The communication method involved in the embodiments of the present disclosure can include at least one of S501A-S503A. For example, S501A can be implemented as an independent embodiment, S502A can be implemented as an independent embodiment, and S503A can be implemented as an independent embodiment, but is not limited thereto.

[0314] In some embodiments, S501A and S502A are optional, and one or more of the steps can be omitted or replaced in different embodiments.

[0315] In some embodiments, other optional implementation manners can be referred to the other optional implementation manners described before or after the description of FIG. 5A.

[0316] FIG. 5B is a flow diagram of a beam pointing error correction method according to an embodiment of the present disclosure. As shown in FIG. 5B, the embodiment of the present disclosure relates to a beam pointing error correction method, the method is executed by a terminal, and the method includes:

[0317] S501B, sending a third message.

[0318] The optional implementation manner of S501B can be referred to the optional implementation manner of S301 in FIG. 3 and other associated parts in the embodiments involved in FIG. 3, which will not be described here.

[0319] In some embodiments, the terminal determines that the distance of the third position deviates from the second position by more than a distance threshold, and sends a third message to the network device, where the third message includes the second position of the terminal.

[0320] Optionally, the second position is used by the network device to determine to use the second beam to page the terminal, and the third position is the last position reported by the terminal to the network device.

[0321] In some embodiments, other optional implementation manners can be referred to the other optional implementation manners described before or after the description of FIG. 5B.

[0322] FIG. 5C is a flow diagram of a beam pointing error correction method according to an embodiment of the present disclosure. As shown in FIG. 5C, the embodiment of the present disclosure relates to a beam pointing error correction method, the method is executed by a terminal, and the method includes:

[0323] S501C, obtaining resource configuration information.

[0324] The optional implementation of S501C can refer to the optional implementation of S312 in FIG. 3 and other associated parts in the embodiments involved in FIG. 3, which will not be repeated here.

[0325] In some embodiments, the terminal receives the resource configuration information sent by the network device, but is not limited thereto, and can also receive the first message sent by other subjects.

[0326] In some embodiments, the terminal obtains the resource configuration information specified by the protocol.

[0327] In some embodiments, the terminal obtains the resource configuration information from a higher layer.

[0328] In some embodiments, the terminal processes to obtain the resource configuration information.

[0329] In some embodiments, S501C is omitted, and the terminal autonomously implements the function indicated by the resource configuration information, or the above function is default or default.

[0330] In some embodiments, the resource configuration information is determined by the network device according to the coverage of the corrected first message, the coverage of the corrected second cell, and the adjusted beam hopping pattern, wherein the adjusted beam hopping pattern is adjusted by the network device according to the elevation angle, the corrected first cell, and the corrected second cell, the coverage of the corrected first cell is determined by the network device after correcting the coverage of the first cell according to the first position of the terminal and the elevation angle, and the coverage of the corrected second cell is determined by the network device after correcting the coverage of the second cell according to the first position of the terminal and the elevation angle. For related descriptions in the above embodiments, they will not be repeated here.

[0331] S502C, determining a transmission resource according to the resource configuration information.

[0332] The optional implementation of S402C can refer to the optional implementation of S313 in FIG. 3 and other associated parts in the embodiments involved in FIG. 3, which will not be repeated here.

[0333] S503C, sending service data using the transmission resource.

[0334] The optional implementation of S503C can refer to the optional implementation of S314 in FIG. 3 and other associated parts in the embodiments involved in FIG. 3, which will not be repeated here.

[0335] In some embodiments, the terminal sends service data to the network device, but is not limited thereto, and can also send service data to other subjects.

[0336] The communication method related to the embodiments of the present disclosure can include at least one of S501C-S503C. For example, S501C can be implemented as an independent embodiment, S502C can be implemented as an independent embodiment, and S503C can be implemented as an independent embodiment, but is not limited thereto.

[0337] In some embodiments, S503C is optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0338] In some embodiments, reference can be made to other optional implementations described before or after the description corresponding to FIG. 5C.

[0339] To facilitate understanding of the embodiments of the present disclosure, exemplary embodiments are provided.

[0340] In exemplary embodiments, the network device is taken as a satellite (gNB) as an example for illustration.

[0341] The satellite communication system has the advantages of large coverage area and long communication distance. Due to the non-uniform distribution of service requirements of ground user terminals (UEs), and the number of satellite point beams is usually less than the number of cells, a hop beam technology is adopted to flexibly allocate limited on-board resources.

[0342] In the hop beam technology, the satellite controls the spatial pointing, bandwidth, frequency point and transmission power of the on-board multi-beam antenna, and only serves a single cell or multiple cells within the coverage range at the same time, and more resources are allocated to cells with large service requirements to improve resource utilization, as shown in FIG. 6A.

[0343] Under the hop beam mechanism of separating control beams and service beams, each satellite node is equipped with two types of beams, control beams with wide coverage and service point beams with narrow coverage, as shown in FIG. 6B.

[0344] 1) The control beam is fixedly pointed, responsible for the transmission of signaling and low-speed services in the entire satellite coverage area, and uses a waveform with low transmission rate and high reliability for continuous and wide-area coverage, collects terminal services in the coverage area, and is used for satellite planning all service beam pointing in each time slot within a period, i.e. the hop beam pattern;

[0345] 2) The service beam, i.e. the point beam, is time-divisionally hopped, responsible for providing on-demand services for high-speed services of terminals, and the coverage area formed on the ground by the service beam is a cell. According to the hopping mode, the service beam can be divided into two types:

[0346] Fixed beam: sweeping across the earth surface with the satellite moving, the beam is fixed relative to the satellite, the cell division is fixed under the satellite view, as shown in FIG. 6B, and the corresponding beam can be punched in the cell division according to the business demand;

[0347] Gazing beam: not moving with the satellite moving in the control beam coverage range, the business beam is fixedly covered by changing the direction at any time, the cell division is changed in real time according to the ground business distribution, and the beam is not punched according to the uniform cell division of FIG. 6B, but is planned only for the region with business, so that the best beam is punched.

[0348] When the satellite actually punches the beam, the deviation factors such as the satellite position, attitude, antenna installation and the like will cause the beam pointing error, and the array element geometric position error is the main factor of the beam pointing error, which cannot be changed after installation.

[0349] 1) Satellite position error: even if the worst ephemeris data is used, the beam pointing error caused thereby is not more than 0.1°;

[0350] 2) Receiver position error: the receiver position estimation error is generally in the order of kilometers, and the beam pointing error caused thereby is also not more than 0.1°;

[0351] 3) Array element geometric position error: for a typical 7-element central circular array, the millimeter-level random error of the array element geometric position can cause the beam pointing error to reach several degrees.

[0352] For example, when the random error range of the array element position is increased from ±0.01λ to ±0.1λ, the average error of the beam pointing is increased from 0.5° to 6°, and the 95% error is increased from 1° to 11°.

[0353] The 3rd Generation Partnership Project (3GPP) proposes that the beam pointing error of all cells from the same satellite is the same, when the satellite approaches the horizon at a lower elevation angle, the beam center offset and beam diameter stretching will become larger, and the beam diameter stretching of the satellite covering the edge cell is larger.

[0354] It is pointed out that the beam pointing error of the satellite can be controlled by controlling the beam width. When the elevation angle changes, the satellite adjusts the beam width and the azimuth angle accordingly to ensure that the diameter of all ideal beam cells is 50km, and when the satellite height is 600km, the beam center offset and the beam diameter stretching are related to the elevation angle as shown in FIG. 6C, and when the beam pointing error is considered to be 1°:

[0355] 1) At 60° elevation angle, the beam center offset is 14km, and the beam diameter stretching is 1km;

[0356] 2) At 30° elevation, the beam center is offset by 45 km, and the beam diameter is stretched by 3.5 km.

[0357] As can be seen from FIG. 6C, adjusting the beam width can reduce the beam diameter stretching, but there is still a large gap in the accuracy of the 50 m step length in the location-based measurement mechanism, and there is still a large error in the beam center offset.

[0358] Therefore, for the problem of beam pointing error, the beam center reference point and coverage range of the corresponding cell cannot be accurately calibrated by physical correction method, and a solution based on satellite signaling interaction is still needed, and the related signaling field is introduced as follows.

[0359] In some embodiments, solution one is proposed: expand the paging range for UEs that cannot be paged due to beam pointing error, as shown in FIG. 6D.

[0360] Step 1: The UE supports Global Navigation Satellite System (GNSS) function, can obtain its own position, and reports the position information to the base station (gNB), which may also include some auxiliary information such as UE type, speed information, etc.

[0361] Step 2: After receiving the UE position report, the gNB forwards the position information and auxiliary information to the Access and Mobility Management Function (AMF);

[0362] Step 3: The AMF stores the UE position information, auxiliary information and corresponding timestamp. When the UE returns to the idle state, these information will be retained in the AMF.

[0363] Step 4: When transmitting service data to the UE, the AMF selects the gNB that can cover the UE according to the stored position information and ephemeris;

[0364] Step 5: The AMF sends a paging message to the selected gNB, and the gNB decides which satellite beam to page after receiving the paging message, and accordingly pages the UE; When the location-based paging fails due to beam pointing error, the AMF may expand the paging area, for example, resend the paging in the entire registration area of the UE until the UE is found.

[0365] In some embodiments, solution two is proposed: a satellite-ground integrated high-precision satellite multi-beam calibration method

[0366] The satellite on-board calibration beam forming device is used to generate and beam form the multi-beam calibration signal; the ground calibration station is located at the center of the theoretical direction of the multi-beam calibration beam, and real-time beam pointing error information is obtained through the capture reception and power measurement of the calibration signal; the measurement data is transmitted to the control center through the ground link or satellite link; the beam pointing deviation compensation parameters are generated in the control center and sent to the satellite measurement and control station; the satellite measurement and control station converts the beam pointing deviation compensation parameters into uplink commands and injects them into the satellite platform for on-orbit attitude adjustment.

[0367] In scheme one, if the UE affected by the beam pointing error is not successfully paged, the satellite side needs to page multiple times by expanding the paging range until the connection with the UE is established, so that the UE that should be served by the service beam A is finally served by the service beam B, the time-frequency resources allocated to the beam A are wasted, and the time-frequency resources allocated to the service beam B are squeezed, which will cause the problems of increased paging overhead and improved management complexity.

[0368] In scheme two, an additional signal for measuring error needs to be designed, the beam pointing error information needs to be defined, and the beam pointing error needs to be corrected by adjusting the attitude, which may also need the cooperation of the satellite attitude control system, and a series of other effects are generated.

[0369] In the beam hopping technology, a phased array antenna is needed to flexibly change the pointing of the beam, and the accuracy of the pointing of the narrow service beam is particularly high. The problems of beam center offset and beam diameter stretching caused by the service beam pointing error will cause the planned cells and beams under the satellite view to be misaligned, as shown in FIG. 2. The ellipses with A0, B0 and C0 as the centers represent the planned cells under the satellite view, and the cell reference points are A0, B0 and C0 respectively. The ellipses with A1 and B1 as the centers represent the actual service cells under the beam pointing error, and the offset cell reference points are A1 and B1 respectively. The five-pointed star represents the UE that cannot be successfully paged at one time due to the beam pointing error.

[0370] The satellite configures the corresponding SIB19 information to the A0 cell (the same below) through the control beam, indicating the UE to communicate with the satellite in the specified time-frequency resources. When the satellite pings the UE for the first time through the corresponding service beam of A0, the actual beam range on the ground is the A1 cell (the same below), while the UE is in the offset B1 cell of the B0 cell (the same below), resulting in the failure to successfully page the five-pointed star UE this time.

[0371] Under the existing mechanism, if the UE is not successfully paged, the satellite side needs to page multiple times by expanding the paging range until the connection with the UE is established, which will cause the following problems:

[0372] 1) Satellite extended range multiple paging increases the paging overhead, and the UE waits for the satellite service delay to increase, thereby causing the service satisfaction to decrease;

[0373] 2) The UE that should be served by the A0 corresponding service beam is finally served by the B1 corresponding service beam, wasting the time-frequency resources allocated to the A0 corresponding service beam, and occupying the time-frequency resources allocated to the B1 corresponding service beam, thereby causing the management complexity to increase;

[0374] 3) The satellite is in high-speed motion, the beam center offset and the beam diameter stretch also change with the elevation angle, so that the actual beam coverage area changes constantly, and in the case of the gazing beam, the UE at the five-pointed star switches cells more frequently;

[0375] 4) If the satellite is planned to meet the service beam orthogonality, the A0 and C0 corresponding service beams simultaneously serve the UE without causing adjacent channel interference, at this time, the UE that should be served by the service beam A0 is finally served by the service beam B1, so that the service beam corresponding to C0 is adjacent, and then the orthogonality may be destroyed, causing the adjacent channel interference to increase.

[0376] Therefore, in view of the beam pointing error problem, the beam center reference point and the coverage range are calibrated through the signaling interaction between the satellite and the UE, so as to avoid a series of problems such as the increase of the paging overhead, the increase of the delay, the decrease of the service satisfaction, the increase of the management complexity, the frequent switching of the cell, and the increase of the adjacent channel interference.

[0377] In order to calibrate the satellite service beam center reference point and the coverage range, the present embodiment of the present disclosure proposes a beam pointing error correction method based on SIB19 parameter feedback, and the implementation process is as follows:

[0378] In some embodiments, the UE registers the location information, and the signaling process is shown in FIG. 6E.

[0379] Step 1: The UE supports the GNSS function, can obtain the own position, and reports the position information to the gNB, and can also include some auxiliary information such as the UE type, the speed information, etc.;

[0380] Step 2: After receiving the UE position report, the gNB forwards the position and auxiliary information to the AMF;

[0381] Step 3: The AMF stores the UE position information, the auxiliary information, and the corresponding timestamp. When the UE returns to the idle state, the information will be retained in the AMF.

[0382] In some embodiments, the UE applies for the service through the control beam, and the signaling process is shown in FIG. 6F.

[0383] Step 1: UE is in the control beam real-time coverage, when it needs to transmit traffic, it applies to the satellite side to establish a connection through the control beam.

[0384] Step 2: After the system receives the application, it performs arbitration and allocates time slot resources for the UE.

[0385] Step 3: The satellite side distributes the system resource allocation to the UE through the control beam, including synchronization information, uplink frequency band, bandwidth, downlink hop beam scheme, transmission time slot, etc.

[0386] In some embodiments, the satellite uses the traffic beam to page the UE, and the signaling flow is shown in FIG. 6G.

[0387] Step 1: Traffic data needs to be transmitted to the UE.

[0388] Step 2: The AMF selects a gNB that can cover the UE according to the stored location information and ephemeris.

[0389] Step 3: The AMF sends a paging message to the selected gNB.

[0390] Step 4: After receiving the paging message, the gNB decides which satellite beam to page and accordingly pages the UE.

[0391] Step 5: The gNB does not receive a paging response.

[0392] Step 6: The gNB expands the paging range to Tdist km near the UE, where Tdist is a parameter at the time of UE registration location, indicating that the UE needs to re-register and update its own location when it moves more than Tdist km.

[0393] Step 7: The UE applies to the gNB to establish a Radio Resource Control (RRC) connection.

[0394] Step 8: The gNB and the UE establish an RRC connection.

[0395] Step 9: The RRC connection is established.

[0396] In some embodiments, the satellite corrects the error according to the SIB19 parameter feedback by the UE, and the signaling flow is shown in FIG. 6H.

[0397] Step 1: When the one-time paging is not successful, record the reference point of the actual traffic beam used to find the UE when expanding the paging area, and the reference point generally uses the beam center position;

[0398] The fixed beam reference point is movingReferenceLocation in SIB19;

[0399] The gaze beam reference point is SIB19 referenceLocation.

[0400] Step 2: The gNB instructs the UE to report beam error information.

[0401] Step 3: Calculate the ideal elevation angle of the current beam cell according to the satellite coordinates (positionX, positionY, positionZ) in SIB19 and the fixed beam reference point or the gaze beam reference point.

[0402] Step 4: The UE feeds back error information (ideal elevation angle of the current beam, UE coordinates, and current fixed or gaze beam reference point coordinates) through the control beam.

[0403] Step 5: The satellite uses the reference point to identify different beams according to a large amount of UE feedback error information, removes the UE coordinate range in the cell corresponding to the reference point in SIB19, adds the UE coordinate range in the actual beam reference point cell, obtains the real elevation angle and corresponding beam coverage range relationship diagram, and adjusts the beam hopping pattern.

[0404] 1) Satellite side parameters: actual beam reference point B0.

[0405] 2) UE side reported parameters:

[0406] SIB19 beam reference point A0 + satellite coordinates in EphemerisInfo → ideal elevation angle of the current beam;

[0407] UE's own coordinates;

[0408] SIB19 beam reference point A0.

[0409] Satellite side correction process: the satellite updates the actual cell coverage range according to a large amount of UE feedback, as shown in FIG. 2. Finally, the satellite side obtains the real relationship diagram of the elevation angle and the cell coverage range. Take the UE at the five-pointed star as an example:

[0410] 1) A0 cell removes a large range of UEs, gradually tending to A1;

[0411] 2) B0 cell adds a large range of UEs, gradually tending to B1.

[0412] Step 6: According to the adjusted reference point and cell coverage range and the beam hopping pattern, retransmit appropriate system information and resource allocation.

[0413] In some embodiments, the UE completes the service according to the new configuration information, and the signaling flow is shown in FIG. 6I.

[0414] Step 1: The UE transmits services in the specified frequency band and time slot according to the new configuration information;

[0415] Step 2: UE completes service transmission, and feeds back completion information through a control beam;

[0416] Step 3: The system receives the end service information fed back by the UE, and releases the resource occupied by the UE.

[0417] By implementing the embodiments of the present disclosure, 1) the satellite can obtain a more accurate real beam coverage by comprehensively judging the error information fed back by a large number of UEs, thereby avoiding a series of problems such as an increase in paging overhead, an increase in time delay, a reduction in service satisfaction, an increase in management complexity, frequent cell switching, and an increase in adjacent channel interference; 2) the existing parameters in SIB19 are used for calculation and feedback, without the need to define new fields or design additional signals for measuring errors.

[0418] In the embodiments of the present disclosure, when the satellite side cannot successfully page the UE at one time according to the location information registered by the UE, the actual beam reference point of the UE in the error area is learned by expanding the paging range, which is recorded on the satellite side, and the UE is instructed to feed back the current error information. The UE feeds back the elevation angle, the own coordinates and the reference point coordinates calculated from the parameters in SIB19 to the satellite side. The satellite side calculates the actual reference point and the beam coverage area corresponding to each elevation angle when there is a beam pointing error according to a large amount of UE feedback information, and updates the beam hopping pattern, reconfigures the system information and resource allocation to the UE.

[0419] The embodiments of the present disclosure also propose a device for implementing any of the above methods, for example, a device is proposed, and the above device includes units or modules for implementing each step performed by the equipment (first equipment, second equipment, third equipment, etc.) in any of the above methods.

[0420] It should be understood that the division of each unit or module in the above apparatus is only a logical function division, and all or part of them can be integrated into a physical entity or physically separated in actual implementation. In addition, the units or modules in the apparatus can be implemented in the form of processor calling software: for example, the apparatus includes a processor, the processor is connected with a memory, the memory stores instructions, and the processor calls the instructions stored in the memory to realize the functions of any of the above methods or the units or modules of the above apparatus, wherein the processor is a general processor such as a central processing unit (CPU) or a microprocessor, and the memory is a memory in the apparatus or a memory outside the apparatus. Alternatively, the units or modules in the apparatus can be implemented in the form of hardware circuit, and the functions of part or all of the units or modules can be realized by the design of the hardware circuit. The above hardware circuit can be understood as one or more processors; for example, in one implementation, the above hardware circuit is an application-specific integrated circuit (ASIC), and the functions of part or all of the units or modules are realized by the design of the logical relationship between the elements in the circuit; for another example, in another implementation, the above hardware circuit is a programmable logic device (PLD), and a field programmable gate array (FPGA) is taken as an example, which can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, so as to realize the functions of part or all of the units or modules. All units or modules of the above apparatus can be all implemented in the form of processor calling software, or all implemented in the form of hardware circuit, or part implemented in the form of processor calling software and the remaining part implemented in the form of hardware circuit.

[0421] In the embodiments of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), a digital signal processor (DSP), or the like. In another implementation, the processor can implement certain functions through a logical relationship of hardware circuits, and the logical relationship of the hardware circuits is fixed or can be reconfigured. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In the reconfigurable hardware circuit, the processor loads a configuration document to implement the configuration of the hardware circuit. It can be understood that the processor loads instructions to implement the functions of the above part or all units or modules. In addition, the hardware circuit can also be designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), or the like.

[0422] FIG. 7A is a structural schematic diagram of a terminal according to an embodiment of the present disclosure. As shown in FIG. 7A, the network device 102 can include at least one of a transceiver module 1021, a processing module 1022, and the like.

[0423] In some embodiments, the processing module 1022 is configured to determine a first beam used for successfully paging the terminal, wherein the first beam is a beam used for expanding the paging area in a case that paging the terminal using a second beam fails.

[0424] The transceiver module 1021 is configured to send a first message to the terminal, wherein the first message is used to instruct the terminal to report beam error information.

[0425] The transceiver module 1021 is further configured to receive a second message sent by the terminal, wherein the second message includes a first position of the terminal and an elevation angle of the terminal, and the elevation angle is determined by the terminal according to a position of the network device and the second beam.

[0426] The processing module 1022 is further configured to correct a coverage range of a first cell to which the first beam belongs according to the first position and the elevation angle.

[0427] Optionally, the transceiver 1021 is configured to perform at least one of the communication steps (e.g., the communication steps performed by the network device in S301-S314, S401A-S405A, S401B-S404B, S401C-S404C, S501A-S503A, S501B, S501C-S503C, but not limited to this) of transmitting and / or receiving performed by the network device 102 in any of the above methods. Details are not described herein again. Optionally, the processing module 1022 is configured to perform at least one of the other steps (e.g., the steps other than the communication steps of transmitting and / or receiving performed by the network device in S301-S314, S401A-S405A, S401B-S404B, S401C-S404C, S501A-S503A, S501B, S501C-S503C, but not limited to this) performed by the network device 102 in any of the above methods. Details are not described herein again.

[0428] FIG. 7B is a structural schematic diagram of a terminal according to an embodiment of the present disclosure. As shown in FIG. 7B, the terminal 101 can include at least one of a transceiver 1011, a processing module 1012, and the like.

[0429] In some embodiments, the transceiver 1011 is configured to receive a first message sent by a network device, wherein the first message is used to instruct the terminal to report beam error information, and the first message is sent by the network device in a case where the network device fails to page the terminal using a second beam and successfully pages the terminal using a first beam in an enlarged paging area.

[0430] The processing module 1012 is configured to determine an elevation angle according to a location of the network device and the second beam.

[0431] The transceiver 1011 is further configured to send a second message to the network device, wherein the second message includes a current first location and the elevation angle of the terminal, and the first location and the elevation angle are used by the network device to correct a coverage range of a first cell to which the first beam belongs.

[0432] Optionally, the transceiver module 1011 is configured to perform at least one of the communication steps (for example, the communication steps of the terminal in S301-S314, S401A-S405A, S401B-S404B, S401C-S404C, S501A-S503A, S501B, S501C-S503C, but not limited to) of the terminal 101 in any of the above methods. Details are not described herein again. Optionally, the processing module 1012 is configured to perform at least one of the other steps (for example, the steps other than the communication steps of the terminal in S301-S314, S401A-S405A, S401B-S404B, S401C-S404C, S501A-S503A, S501B, S501C-S503C, but not limited to) of the terminal 101 in any of the above methods. Details are not described herein again.

[0433] In some embodiments, the transceiver module can include a sending module and / or a receiving module, which can be separate or integrated together. Optionally, the transceiver module can be mutually replaced with the transceiver.

[0434] In some embodiments, the processing module can be one module or include multiple sub-modules. Optionally, the multiple sub-modules perform all or part of the steps required to be performed by the processing module. Optionally, the processing module can be mutually replaced with the processor.

[0435] FIG. 8A is a structural schematic diagram of a communication device 8100 according to the embodiments of the present disclosure. The communication device 8100 can be a network device (for example, an access network device, a core network device, etc.), a terminal (for example, a user equipment UE, etc.), a chip, a chip system, or a processor supporting the network device to implement any of the above methods, or a chip, a chip system, or a processor supporting the terminal to implement any of the above methods. The communication device 8100 can be used to implement the methods described in the above method embodiments, and details can be referred to the descriptions in the above method embodiments.

[0436] As shown in FIG. 8A, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a special-purpose processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (for example, a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process data of the programs. Optionally, the communication device 8100 is configured to perform any of the above methods. Optionally, the one or more processors 8101 are configured to invoke instructions to enable the communication device 8100 to perform any of the above methods.

[0437] In some embodiments, the communication device 8100 further includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the transceiver 8103 performs at least one of the communication steps (e.g., the transmission and / or reception communication steps in S301-S314, S401A-S405A, S401B-S404B, S401C-S404C, S501A-S503A, S501B, S501C-S503C, but not limited to) in the above-described methods, and the processor 8101 performs at least one of the other steps (e.g., the steps other than the transmission and / or reception communication steps in S301-S314, S401A-S405A, S401B-S404B, S401C-S404C, S501A-S503A, S501B, S501C-S503C, but not limited to) in the above-described methods. In optional embodiments, the transceiver can include a receiver and / or a transmitter, which can be separate or integrated together. Optionally, the terms transceiver, transceiving unit, transceiver, transceiving circuit, interface circuit, interface, etc. can be replaced with each other, and the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc. can be replaced with each other, and the terms receiver, receiving unit, receiver, receiving circuit, etc. can be replaced with each other.

[0438] In some embodiments, the communication device 8100 further includes one or more memories 8102 for storing data. Optionally, all or part of the memory 8102 can also be outside the communication device 8100. In optional embodiments, the communication device 8100 can include one or more interface circuits 8104. Optionally, the interface circuit 8104 is connected with the memory 8102, and the interface circuit 8104 can be used to receive data from the memory 8102 or other devices, and can be used to send data to the memory 8102 or other devices. For example, the interface circuit 8104 can read the data stored in the memory 8102 and send the data to the processor 8101.

[0439] The communication device 8100 described in the above embodiments can be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 can not be limited by FIG. 8A. The communication device can be a standalone device or can be part of a larger device. For example, the communication device can be: 1) a standalone integrated circuit (IC), or a chip, or a chip system or subsystem; (2) a set of one or more ICs, which can optionally also include storage components for storing data, programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, a smart terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, and the like; (6) other devices, and the like.

[0440] FIG. 8B is a structural schematic diagram of a chip 8200 according to an embodiment of the present disclosure. For the case where the communication device 8100 is a chip or a chip system, the structural schematic diagram of the chip 8200 shown in FIG. 8B can be referred to, but is not limited thereto.

[0441] The chip 8200 includes one or more processors 8201. The chip 8200 is configured to execute any of the above methods.

[0442] In some embodiments, the chip 8200 further includes one or more interface circuits 8202. Optionally, the terms interface circuit, interface, transceiver pin, and the like can be replaced with each other. In some embodiments, the chip 8200 further includes one or more memories 8203 for storing data. Optionally, all or part of the memory 8203 can be outside the chip 8200. Optionally, the interface circuit 8202 is connected to the memory 8203, and the interface circuit 8202 can be configured to receive data from the memory 8203 or other devices, and the interface circuit 8202 can be configured to send data to the memory 8203 or other devices. For example, the interface circuit 8202 can read data stored in the memory 8203 and send the data to the processor 8201.

[0443] In some embodiments, the interface circuit 8202 performs at least one of the communication steps (e.g., the transmitting and / or receiving communication steps in S301-S314, S401A-S405A, S401B-S404B, S401C-S404C, S501A-S503A, S501B, S501C-S503C, but not limited to) in the above-described methods. The interface circuit 8202 performing the communication steps in the above-described methods, for example, means that the interface circuit 8202 performs data interaction between the processor 8201, the chip 8200, the memory 8203, or the transceiver device. In some embodiments, the processor 8201 performs at least one of the other steps (e.g., other steps in S301-S314, S401A-S405A, S401B-S404B, S401C-S404C, S501A-S503A, S501B, S501C-S503C, but not limited to) in the above-described methods.

[0444] The disclosure also proposes a storage medium, and the storage medium stores instructions, and the instructions, when executed on the communication device 8100, cause the communication device 8100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited to this, and it can also be a storage medium readable by other devices. Optionally, the storage medium can be a non-transitory storage medium, but is not limited to this, and it can also be a transitory storage medium.

[0445] The disclosure also proposes a program product, and the program product, when executed by the communication device 8100, causes the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0446] The disclosure also proposes a computer program, and the computer program, when executed on a computer, causes the computer to perform any of the above methods.

[0447] Those skilled in the art can realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be realized in electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the disclosure.

[0448] Those skilled in the art can clearly understand the specific working process of the system, device and unit described above for the convenience and brevity of description, which can refer to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0449] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

A method of beam pointing error correction, characterized in that The method is executed by a network device, and comprises: determining a first beam used for successfully paging a terminal, wherein the first beam is a beam used for expanding a paging area in a case that paging the terminal using a second beam fails; sending a first message to the terminal, wherein the first message is used for instructing the terminal to report beam error information; receiving a second message sent by the terminal, wherein the second message comprises a first position of the terminal and an elevation angle, and the elevation angle is determined by the terminal according to a position of the network device and the second beam; correcting a coverage range of a first cell to which the first beam belongs according to the first position and the elevation angle. The method of claim 1, wherein The method further comprises: correcting a coverage range of a second cell to which the second beam belongs according to the first position and the elevation angle. The method of claim 1 or 2, wherein The correcting the coverage range of the first cell to which the first beam belongs according to the first position and the elevation angle comprises: determining the coverage range of the first cell according to the elevation angle and the first beam; determining that the first position is not within the coverage range of the first cell, and expanding the coverage range of the first cell to include the first position. The method of claim 2 wherein The correcting the coverage range of the second cell to which the second beam belongs according to the first position and the elevation angle comprises: determining the coverage range of the second cell according to the elevation angle and the second beam; determining that the first position is within the coverage range of the second cell, and reducing the coverage range of the second cell to exclude the first position. The method of claim 2 wherein The first message is further used for instructing the terminal to report beam information, and the second message further comprises the second beam, wherein the method further comprises: determining the second beam according to the second message. The method of claim 2, wherein The method further comprises: adjusting a beam hopping pattern according to the elevation angle, the corrected first cell, and the corrected second cell. The method of claim 6, wherein The method further comprises: determining resource configuration information according to the coverage range of the corrected first cell, the coverage range of the corrected second cell, and the adjusted beam hopping pattern; sending the resource configuration information to the terminal. The method of claim 7, wherein The method further comprises: receiving service data sent by the terminal using a transmission resource, wherein the transmission resource is determined by the terminal according to the resource configuration information. The method of any one of claims 1 to 8, wherein The method further comprises: paging the terminal using the second beam according to a second position of the terminal; determining that no paging response is received, expanding a paging area, and paging the terminal using the first beam, wherein a paging range of the first beam comprises part or all of a range of a circle with the second position as a center and a distance threshold as a radius. The method of claim 9, wherein The method further comprises: receiving a third message sent by the terminal, wherein the third message comprises a second position of the terminal, and the third message is sent by the terminal in a case that a distance between the terminal and a third position exceeds a distance threshold, and the third position is a last position reported by the terminal to the network device. A method of beam pointing error correction, characterized in that The method is executed by a terminal, and comprises: receiving a first message sent by a network device, wherein the first message is used for instructing the terminal to report beam error information, the first a message is sent in a case where the network device successfully pages the terminal using the first beam by expanding a paging area in a case where paging the terminal using the second beam fails; determine an elevation angle according to a location of the network device and the second beam; send a second message to the network device, wherein the second message includes a current first location of the terminal and the elevation angle, and the first location and the elevation angle are used by the network device to correct a coverage range of a first cell to which the first beam belongs. The method of claim 11, wherein The first location and the elevation angle are used by the network device to correct a coverage range of a second cell to which the second beam belongs. The method of claim 11 or 12, wherein The second message further includes the second beam. The method of claim 12, wherein The elevation angle, the corrected first cell, and the corrected second cell are further used by the network device to adjust a beam hopping pattern. The method of claim 14, wherein The method further includes: receiving resource configuration information sent by the network device, wherein the resource configuration information is determined by the network device according to the coverage range of the corrected first cell, the coverage range of the corrected second cell, and the adjusted beam hopping pattern. The method of claim 15, wherein The method further includes: determine a transmission resource according to the resource configuration information; send service data to the network device using the transmission resource. The method of any one of claims 11 to 16, wherein The method further includes: determine that a distance of an offset third location exceeds a distance threshold, and send a third message to the network device, wherein the third message includes a second location of the terminal, and the second location is used by the network device to determine to page the terminal using the second beam, and the third location is a last location reported by the terminal to the network device. A method of beam pointing error correction, characterized in that The method includes: a network device determines a first beam used for successfully paging a terminal, wherein the first beam is a beam used for expanding a paging area in a case where paging the terminal using a second beam fails; the network device sends a first message to the terminal, wherein the first message is used to instruct the terminal to report beam error information; the terminal receives the first message sent by the network device; the terminal determines an elevation angle according to a location of the network device and the second beam; the terminal sends a second message to the network device, wherein the second message includes a current first location of the terminal and the elevation angle; the network device receives the second message sent by the terminal; the network device corrects a coverage range of a first cell to which the first beam belongs according to the first location and the elevation angle. A network device, characterized in that includes: a processing module configured to determine a first beam used for successfully paging a terminal, wherein the first beam is a beam used for expanding a paging area in a case where paging the terminal using a second beam fails; a transceiver module configured to send a first message to the terminal, wherein the first message is used to instruct the terminal to report beam error information; the transceiver module is further configured to receive a second message sent by the terminal, wherein the second message includes a current first location of the terminal and an elevation angle, and the elevation angle is determined by the terminal according to a location of the network device and the second beam; The processing module is further configured to correct a coverage range of a first cell to which the first beam belongs according to the first position and the elevation angle. A terminal, characterized by comprising: Comprising: The transceiver is configured to receive a first message sent by the network device, wherein the first message is used to instruct the terminal to report beam error information, and the first message is sent by the network device in a case where the network device fails to page the terminal using a second beam, and successfully pages the terminal using a first beam in an enlarged paging area; The processing module is configured to determine an elevation angle according to a position of the network device and the second beam; The transceiver is further configured to send a second message to the network device, wherein the second message includes a current first position of the terminal and the elevation angle, and the first position and the elevation angle are used by the network device to correct a coverage range of a first cell to which the first beam belongs. A communication device characterized by comprising: Comprising: One or more processors; A memory coupled to the processor, the memory having instructions stored thereon that, when executed by the processor, cause the communication device to perform the method of any one of claims 1-10, or when executed by the processor, cause the communication device to perform the method of any one of claims 11-17. A communication system characterized by Comprising a network device and a terminal, wherein the network device is configured to implement the method of any one of claims 1-10, and the terminal is configured to implement the method of any one of claims 11-17. A storage medium storing instructions, the instructions comprising: When the instructions run on the communication device, the communication device performs the method of any one of claims 1-10, or when the instructions run on the communication device, the communication device performs the method of any one of claims 11-17.

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