Broadcast method and apparatus, method and apparatus for receiving broadcast information, and electronic device

Abstract

The present application relates to the technical field of satellite communications. Provided are a broadcast method and apparatus, a method and apparatus for receiving broadcast information, and an electronic device. In the present application, the broadcast method comprises: first, determining an edge area and a non-edge area of a coverage area of a current serving cell; and then sending first broadcast information to the edge area, and sending second broadcast information to the non-edge area, wherein the first broadcast information comprises a system information set related to a neighbor cell of the serving cell and other information sets unrelated to the neighbor cell of the serving cell, and the second broadcast information comprises the other information sets and does not comprise the system information set. In this way, broadcasting to all coverage areas of serving cells system information sets related to neighbor cells can be avoided, thereby reducing the system information sending power consumption of a satellite, and increasing the utilization rate of channel resources.

Description

Broadcasting method, method and device for receiving broadcast information, and electronic equipment

[0001] This application claims priority to Chinese patent application No. 202410335350.7 filed on March 22, 2024, entitled “A broadcasting method, a method for receiving broadcast information, a device and an electronic device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of satellite communication technology, and in particular to a broadcasting method, a method and device for receiving broadcast information, and an electronic device. Background Art

[0003] The system information of the 5G communication system consists of a master information block (MIB) and a series of system information blocks (SIB).

[0004] This series of SIBs includes some SIBs related to neighboring cells, such as neighboring satellite configuration in SIB2, SIB3, SIB4, SIB5, and SIB19. Neighboring cell-related SIBs represent neighboring cell information of the current cell, including neighboring satellite configuration information related to measurement, reselection, and neighboring satellite ephemeris. The terminal uses neighboring cell-related SIBs to detect and reselect neighboring cells, so that before the coverage of the current cell (serving cell) ends, the terminal can change to the next cell based on the neighboring cell detection results. In the scenario of dynamic cell changes, the terminal can continuously reside in different cells and maintain the continuity of the terminal's use of network services.

[0005] In the existing 3GPP standard protocol, neighboring cell-related system information is sent at the cell level. In order to ensure the continuity of network services for all terminals within the coverage area of ​​the current cell, the network usually needs to broadcast the same neighboring cell-related system information to all coverage areas of the current cell.

[0006] Since all coverage areas of the currently located cell may contain target terminals that do not require cell measurement or reselection at the moment, for example, a target terminal located in the center of the currently located cell, if the network still broadcasts neighboring cell system information to all coverage areas, this will increase satellite transmission power consumption, occupy air interface links, and waste channel resources.

[0007] Summary of the Invention

[0008] This application provides a broadcasting method, a method and apparatus for receiving broadcast information, and an electronic device to reduce the power consumption of satellites transmitting neighboring area-related system information and improve the utilization of channel resources. The specific technical solution is as follows:

[0009] In a first aspect, the present application provides a broadcasting method, comprising:

[0010] Determine the edge area and non-edge area of ​​the current serving cell coverage area;

[0011] Sending first broadcast information to the edge area and sending second broadcast information to the non-edge area; wherein the first broadcast information includes a system information set related to the neighboring area of ​​the service cell and other information sets unrelated to the neighboring area of ​​the service cell; the second broadcast information includes the other information set and does not include the system information set.

[0012] Based on the above method, it is possible to avoid sending the same set of neighboring cell related system information to all coverage areas of the serving cell, reduce the transmission power consumption of the network device in sending the neighboring cell related system information, and improve the utilization rate of channel resources.

[0013] In a possible implementation, the other information set includes scheduling information of system information, where the scheduling information is used to instruct the terminal to obtain the system information set in an on-demand request manner or a direct extraction manner;

[0014] If, in the scheduling information, the scheduling type of the system information set is configured as a broadcast type, instructing the terminal to directly obtain the system information set;

[0015] If the scheduling type of the system information set is configured as a non-broadcast type in the scheduling information, the terminal is instructed to obtain the system information set in the on-demand request manner.

[0016] Based on the above method, after determining the scheduling type of the system information set related to the neighboring cells of the serving cell, the terminal can obtain the system information set related to the neighboring cells of the serving cell by on-demand request or direct extraction.

[0017] In a possible implementation, the system information set includes at least: neighboring satellite configuration in SIB19;

[0018] If the scheduling type of the neighboring satellite configuration is configured as a broadcast type, instructing the terminal to directly obtain the neighboring satellite configuration;

[0019] If the scheduling type of the neighboring satellite configuration is configured as a non-broadcast type, the terminal is instructed to obtain the neighboring satellite configuration in an on-demand request manner.

[0020] Based on the above method, after determining the scheduling type of the neighboring satellite configuration, the terminal can separately obtain the neighboring satellite configuration in SIB19 by on-demand request or direct extraction.

[0021] In a possible implementation, the sending the second broadcast information to the non-edge area includes:

[0022] Configuring the scheduling type of the system information set in the second broadcast information to a non-broadcast type;

[0023] determining whether a request for obtaining the system information set initiated by a terminal in the non-edge area based on the on-demand request manner is received;

[0024] If yes, sending the system information set to the terminal based on the acquisition request;

[0025] If not, broadcast the other information set to the non-edge area.

[0026] Based on the above method, when the terminal device determines that non-broadcast type neighboring cell-related system information has not been received, it can request the network device to send a set of system information related to the neighboring cells of the service cell, which can reduce the power consumption of the network device in sending the set of system information related to the neighboring cells and save system resources.

[0027] In a possible implementation, determining the edge area and the non-edge area of ​​the coverage area of ​​the current serving cell includes:

[0028] determining an edge sub-area of ​​the coverage area;

[0029] In the coverage area, one or more sub-areas to be selected are selected, extending from the edge sub-area to the interior of the coverage area to a set distance;

[0030] The one or more to-be-selected sub-areas are used as the edge areas, and the remaining sub-areas in the coverage area are used as the non-edge areas.

[0031] Based on the above method, it is possible to determine the edge area and non-edge area from the coverage area of ​​the service cell. After determining the edge area and non-edge area, broadcast information containing different content is sent to the edge area and non-edge area by broadcasting, avoiding sending a set of neighboring area-related system information to all coverage areas of the service cell, saving system resources and power consumption.

[0032] In a possible implementation, after determining the edge area and the non-edge area of ​​the coverage area of ​​the current serving cell, the method further includes:

[0033] determining whether a moving speed of the coverage area is greater than a moving speed of a terminal within the coverage area;

[0034] If yes, determining an upper periphery of the edge area projected in the moving direction and a lower periphery opposite to the upper periphery, and modifying the lower periphery into a non-edge area;

[0035] If not, any perimeter of the edge region is kept unchanged.

[0036] Based on the above method, the edge area can be further streamlined according to the relative speed of the network equipment and the terminal equipment, so that the area where the network equipment sends the system information set related to the neighboring area to the terminal equipment is smaller, saving air interface resources and improving the utilization of channel resources.

[0037] In a possible implementation, the coverage area is a fully enclosed area, the edge area is an outer periphery of the fully enclosed area, and the width of the outer periphery is equal to the width of n wave positions, where n is an integer greater than or equal to 1.

[0038] In a second aspect, the present application provides a method for receiving broadcast information, comprising:

[0039] When accessing a network device in a non-edge area, receiving broadcast information sent by the network device, wherein the broadcast information includes a set of other information unrelated to neighboring cells of a serving cell of the network device and does not include a set of system information related to neighboring cells of the serving cell, and the set of other information includes scheduling information of the system information set;

[0040] Based on the scheduling information, a scheduling type of the system information set is determined, and the system information set is acquired in a data acquisition manner corresponding to the scheduling type.

[0041] Based on the above method, when the terminal device determines that non-broadcast type neighboring cell-related system information has not been received, it can obtain the neighboring cell-related system information set according to the data acquisition method corresponding to the scheduling type of the system information set. This can avoid every terminal in the coverage area receiving the neighboring cell-related system information set broadcast by the network device, reduce the transmission power consumption of the network device in sending the neighboring cell-related system information set, save air interface resources, and improve the utilization rate of channel resources.

[0042] In a possible implementation, determining a scheduling type of the system information set based on the scheduling information, and acquiring the system information set in a data acquisition manner corresponding to the scheduling type includes:

[0043] Determining, based on the scheduling information, whether the scheduling type is a broadcast type or a non-broadcast type;

[0044] If the scheduling type is the broadcast type, determining that the data acquisition method is to directly acquire the system information set;

[0045] If the scheduling type is the non-broadcast type, the data acquisition method is determined to be based on the current operating state of the terminal, a data request method corresponding to the operating state is determined, and the system information set is requested from the network device according to the data request method.

[0046] Based on the above method, the terminal device can determine the method of obtaining the neighboring area-related system information set according to the scheduling type of the neighboring area-related system information set in the scheduling information, so that each type of terminal device can request the network device to send the corresponding neighboring area-related system information set when it determines that non-broadcast type neighboring area-related system information has not been received.

[0047] In a possible implementation, if the running state is an idle state, requesting the system information set from the network device in the data request manner includes:

[0048] Determine whether any non-broadcast system information has not been received;

[0049] If so, initiating a random access process, and initiating a first acquisition request for the system information set to the network device through an on-demand system information request, so that the network device sends the system information set to the current terminal based on the first acquisition request, wherein the first acquisition request at least includes a request to obtain neighboring satellite configuration related information in SIB2-5 and SIB19;

[0050] If not, continue to use the received system information.

[0051] Based on the above method, a terminal device located in a non-edge area and in an idle state can request a set of system information related to a neighboring area from a network device through an on-demand system information request method, which can reduce the power consumption of the network device in sending a set of system information related to a neighboring area, save air interface resources, and improve the utilization of channel resources.

[0052] In a possible implementation, if the running state is a connected state, requesting the system information set from the network device in the data request manner includes:

[0053] A second acquisition request for the system information set is reported to the network device in a dedicated system information request manner, so that the network device sends the system information set to the current terminal based on the second acquisition request, wherein the second acquisition request at least includes a request for obtaining neighboring satellite configuration related in SIB2-5 and SIB19.

[0054] Based on the above method, a terminal device located in a non-edge area and in a connected state can request a set of system information related to a neighboring area from a network device through a dedicated system information request method, which can reduce the power consumption of the network device in sending the set of system information related to the neighboring area, save air interface resources, and improve the utilization of channel resources.

[0055] In a third aspect, the present application provides a broadcasting device, comprising:

[0056] An area division module is used to determine the edge area and non-edge area of ​​the coverage area of ​​the current serving cell;

[0057] A data sending module, used to send first broadcast information to the edge area and send second broadcast information to the non-edge area; wherein the first broadcast information includes a system information set related to the neighboring area of ​​the service cell and other information sets unrelated to the neighboring area of ​​the service cell; the second broadcast information includes the other information set and does not include the system information set.

[0058] In a possible implementation, the data sending module is further configured to:

[0059] The other information set includes scheduling information of system information, where the scheduling information is used to instruct the terminal to obtain the system information set in an on-demand request manner or a direct extraction manner;

[0060] If, in the scheduling information, the scheduling type of the system information set is configured as a broadcast type, instructing the terminal to directly obtain the system information set;

[0061] If the scheduling type of the system information set is configured as a non-broadcast type in the scheduling information, the terminal is instructed to obtain the system information set in the on-demand request manner.

[0062] In a possible implementation, the system information set includes at least: neighboring satellite configuration in SIB19;

[0063] If the scheduling type of the neighboring satellite configuration is configured as a broadcast type, instructing the terminal to directly obtain the neighboring satellite configuration;

[0064] If the scheduling type of the neighboring satellite configuration is configured as a non-broadcast type, the terminal is instructed to obtain the neighboring satellite configuration in an on-demand request manner.

[0065] In a possible implementation, the data sending module is specifically configured to:

[0066] Configuring the scheduling type of the system information set in the second broadcast information to a non-broadcast type;

[0067] determining whether a request for obtaining the system information set initiated by a terminal in the non-edge area based on the on-demand request manner is received;

[0068] If yes, sending the system information set to the terminal based on the acquisition request;

[0069] If not, broadcast the other information set to the non-edge area.

[0070] In a possible implementation, the region division module is specifically configured to:

[0071] determining an edge sub-area of ​​the coverage area;

[0072] In the coverage area, one or more sub-areas to be selected are selected, extending from the edge sub-area to the interior of the coverage area to a set distance;

[0073] The one or more to-be-selected sub-areas are used as the edge areas, and the remaining sub-areas in the coverage area are used as the non-edge areas.

[0074] In a possible implementation, the region division module is further configured to:

[0075] determining whether a moving speed of the coverage area is greater than a moving speed of a terminal within the coverage area;

[0076] If yes, determining an upper periphery of the edge area projected in the moving direction and a lower periphery opposite to the upper periphery, and modifying the lower periphery into a non-edge area;

[0077] If not, any perimeter of the edge region is kept unchanged.

[0078] In a fourth aspect, the present application provides a device for receiving broadcast information, comprising:

[0079] a data receiving module, configured to receive broadcast information sent by a network device when accessing the network device in a non-edge area, wherein the broadcast information includes a set of other information unrelated to a neighboring area of ​​a serving cell of the network device and does not include a set of system information related to a neighboring area of ​​the serving cell, and the set of other information includes scheduling information of the system information set;

[0080] A data processing module is used to determine the scheduling type of the system information set based on the scheduling information, and obtain the system information set according to a data acquisition method corresponding to the scheduling type.

[0081] In a possible implementation, the data processing module is specifically configured to:

[0082] Determining, based on the scheduling information, whether the scheduling type is a broadcast type or a non-broadcast type;

[0083] If the scheduling type is the broadcast type, determining that the data acquisition method is to directly acquire the system information set;

[0084] If the scheduling type is the non-broadcast type, the data acquisition method is determined to be based on the current operating state of the terminal, a data request method corresponding to the operating state is determined, and the system information set is requested from the network device according to the data request method.

[0085] In a possible implementation, if the running state is an idle state, the data processing module is specifically configured to:

[0086] Determine whether any non-broadcast system information has not been received;

[0087] If so, initiating a random access process, and initiating a first acquisition request for the system information set to the network device through an on-demand system information request, so that the network device sends the system information set to the current terminal based on the first acquisition request, wherein the first acquisition request at least includes a request to obtain neighboring satellite configuration related information in SIB2-5 and SIB19;

[0088] If not, continue to use the received system information.

[0089] In a possible implementation, if the running state is a connected state, the data processing module is specifically configured to:

[0090] A second acquisition request for the system information set is reported to the network device in a dedicated system information request manner, so that the network device sends the system information set to the current terminal based on the second acquisition request, wherein the second acquisition request at least includes a request for obtaining neighboring satellite configuration related in SIB2-5 and SIB19.

[0091] In a fifth aspect, the present application provides an electronic device, comprising:

[0092] Memory for storing computer programs;

[0093] The processor is configured to implement the steps of the above-mentioned broadcasting method or the method for receiving broadcast information when executing the computer program stored in the memory.

[0094] In a sixth aspect, the present application provides a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, the steps of the above-mentioned broadcasting method or the method for receiving broadcast information are implemented.

[0095] For each of the above-mentioned aspects from the second to the sixth aspects and the technical effects that may be achieved by each of the aspects, please refer to the above-mentioned description of the technical effects that can be achieved by the first aspect or various possible solutions in the first aspect, and no further details will be given here. BRIEF DESCRIPTION OF THE DRAWINGS

[0096] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0097] FIG1 is a flow chart of a broadcasting method provided in an embodiment of the present application;

[0098] FIG2 is a schematic diagram of a network structure provided in an embodiment of the present application;

[0099] FIG3 is a schematic diagram of a scenario in which a network device sends a system information set to a terminal device according to an embodiment of the present application;

[0100] FIG4 is a simplified schematic diagram of an edge area provided in an embodiment of the present application;

[0101] FIG5 is a flow chart of a network device sending other information sets in a non-edge area according to an embodiment of the present application;

[0102] FIG6 is a flowchart of a method for receiving broadcast information provided in an embodiment of the present application;

[0103] FIG7 is a schematic diagram of a scenario in which a terminal device receives broadcast information according to an embodiment of the present application;

[0104] FIG8 is a flow chart of a terminal device located in a non-edge area and in an idle state acquiring a system information set according to an embodiment of the present application;

[0105] FIG9 is a flow chart of a terminal device located in a non-edge area and in a connected state obtaining a system information set according to an embodiment of the present application;

[0106] FIG10 is a schematic diagram of a scenario in which a terminal device obtains a system information set according to an embodiment of the present application;

[0107] FIG11 is a schematic structural diagram of a broadcasting device provided in an embodiment of the present application;

[0108] FIG12 is a schematic structural diagram of a device for receiving broadcast information provided in an embodiment of the present application;

[0109] FIG13 is a schematic structural diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0110] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail with reference to the accompanying drawings. The specific operating methods in the method embodiments can also be applied to device embodiments or system embodiments. It should be noted that in the description of the present application, "multiple" is understood as "at least two". "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist at the same time, and B exists alone. A is connected to B, which can represent the following two situations: A is directly connected to B and A is connected to B through C. In addition, in the description of the present application, words such as "first" and "second" are only used to distinguish the purpose of description, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying order.

[0111] In order to facilitate understanding of this solution, the relevant terms involved in this application are first explained:

[0112] community

[0113] In a cellular mobile communication system, a cell is the area covered by one base station or part of a base station (sector antenna), and the terminal equipment (mobile station) in this area can communicate reliably with the base station through a wireless channel; in a satellite communication system, a satellite cell is the area covered by the radio waves transmitted by one satellite, and radio communication stations in this area can communicate using the satellite as a relay.

[0114] 5G system information

[0115] MIB: Master Information Block, which contains cell barring status information and basic physical layer information required to receive further system information;

[0116] System Information Block (SIB)

[0117] SIB1, defines the scheduling of other system information blocks and contains the information required for initial access;

[0118] SIB2, contains cell reselection information, mainly related to the serving cell;

[0119] SIB3, contains serving frequency information and co-frequency neighboring cell information related to cell reselection;

[0120] SIB4, contains information about NR inter-frequency neighboring cells related to cell reselection;

[0121] SIB5, contains E-UTRA neighbor cell information related to cell reselection;

[0122] SIB6, containing the main ETWS notification;

[0123] SIB7, including ETWS auxiliary notification;

[0124] SIB8, containing CMAS warning notices;

[0125] SIB9, which contains information related to GPS time and Coordinated Universal Time (UTC);

[0126] SIB19, contains NTN service cell and neighboring satellite parameters.

[0127] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0128] Example 1:

[0129] The system information block includes multiple information types, some of which are related to neighboring cells, such as the neighboring satellite configuration in the system information blocks SIB2, SIB3, SIB4, SIB5, and SIB19. For ease of representation, the neighboring satellite configuration in the system information blocks SIB2, SIB3, SIB4, SIB5, and SIB19 is collectively referred to as a neighboring cell-related system information set. The neighboring cell-related system information set records the neighboring satellite configuration information. The terminal can detect and reselect the neighboring cell based on the neighboring satellite configuration information (such as the access standard and frequency of the neighboring cell). Another part of the system information block is not related to the neighboring cell, including system information blocks related to the serving cell of the local satellite or related to notification and alarm, such as SIB6-8. This application collectively refers to these system information blocks as other information sets. The local satellite configuration information is recorded in the system information block related to the serving cell of the local satellite. The terminal can determine how to access the local satellite based on the local satellite configuration information.

[0130] When the terminal is within the coverage area of ​​the satellite beam (service cell) and is in the edge area of ​​the satellite coverage area, it will detect the signal quality of the neighboring cell based on the SIB configuration related to the neighboring cell. Before the coverage of the service cell ends, the current service cell can be switched to the next service cell based on the neighboring cell detection result, so that the terminal can reside in different service cells and ensure the continuity of network services.

[0131] At present, for cellular mobile communication systems, terminals and networks usually use the 3GPP protocol to exchange information. In the 3GPP standard protocol, system information is sent at the cell level, that is, the network needs to broadcast the same neighboring cell-related system information to all coverage areas within the service cell; for satellite communication systems, due to the wide coverage range and large number of wave positions of the satellite network, and all coverage areas of the service cell may contain target terminals that do not have cell measurement or reselection requirements at the current moment; if the satellite network still sends neighboring cell-related system information to all coverage areas in a broadcast manner, this will increase the power consumption of the satellite in sending neighboring cell-related system information to the coverage area, squeeze the air interface link, and cause a waste of channel resources.

[0132] In view of this, in order to reduce the power consumption of satellites sending system information related to neighboring areas and improve the utilization rate of channel resources. In the first aspect, the present application provides a broadcasting method, which specifically includes: first determining the edge area and non-edge area of ​​the coverage area of ​​the current service cell; then sending first broadcast information to the edge area, and sending second broadcast information to the non-edge area; wherein the first broadcast information includes a system information set related to the neighboring areas of the service cell and other information sets unrelated to the neighboring areas of the service cell; the second broadcast information includes other information sets, and does not include a system information set.

[0133] Through the method provided in the present application, the network device (satellite) can send a system information set related to the neighboring area of ​​the service cell only in the edge area of ​​the service cell; and send other information sets in the non-edge area of ​​the service cell; by setting the scheduling type of the neighboring area related system information set to the "non-broadcast" type, the terminal in the non-edge area requests the neighboring area related system information set from the network device when it determines that there is non-broadcast type system information that has not been received; in this way, it is possible to avoid sending the same neighboring area related system information to all coverage areas of the service cell, reduce the satellite's system information transmission power consumption, and improve the utilization rate of channel resources.

[0134] 1 is a flowchart of a broadcasting method provided in Embodiment 1 of the present application, the method comprising:

[0135] S1, determining the edge area and non-edge area of ​​the coverage area of ​​the current serving cell.

[0136] Refer to Figure 2, which is a schematic diagram of the network structure provided by an embodiment of the present invention. As shown in Figure 2, the network structure includes: a terminal device and a network device, and the method provided in Example 1 of the present application can be run in the network device.

[0137] Terminal devices can be referred to as user terminals or user equipment (UE). Terminal devices can be deployed on land and include indoor, outdoor, handheld, wearable, or vehicle-mounted devices. For example, terminal devices can be mobile phones, tablet computers, computers with wireless transceiver functions, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, wireless terminals in industrial control, vehicle-mounted terminals, and wireless terminals in self-driving. In this application, terminal devices can also be referred to as terminals, UE units, UE stations, mobile stations, mobile stations, mobile devices, and UE terminal devices.

[0138] Network devices usually have wireless transceiver functions and mobility characteristics. In this application, network devices can be satellites or balloon stations. For example, satellites can be low earth orbit satellites (LEO), medium earth orbit satellites (MEO), geostationary earth orbit satellites (GEO), and high elliptical orbit satellites (HEO). For LEO satellites, LEO satellites are mobile relative to the ground. As the satellite moves, its coverage area on the ground also changes. However, the signal propagation distance between LEO satellites and terminal devices is short (usually 500km-1500km), and the link loss is small. Therefore, the satellite does not require high transmission power from the terminal device.

[0139] For GEO satellites, the orbital altitude of GEO is usually greater than 30,000 km. In order to ensure the signal coverage of the satellite and improve the system capacity of the communication network, the satellite can use multiple beams to cover the ground. For example, a satellite can use dozens or hundreds of beams to cover the ground, and one beam can cover a ground area with a diameter of tens to hundreds of kilometers. Of course, the network equipment can also be a base station set up on land or water. For example, the network equipment can be a next-generation base station (next generation NodeB, gNB) or a next-generation evolved base station (next generation-evolved NodeB, ng-eNB). Among them, gNB provides the user plane function and control plane function of the new radio (NR) for the UE, and ng-eNB provides the user plane function and control plane function of the evolved universal terrestrial radio access (E-UTRA) for the UE. This application does not specifically limit the number and type of network equipment.

[0140] See Figure 3, which is a schematic diagram of a scenario in which a network device provided in the present application sends a system information set to a terminal device. In the prior art, a network device usually sends the system information of a cell (including other information sets unrelated to the neighboring cells of the serving cell and system information sets related to the neighboring cells of the serving cell) to each wave position (e.g., the position corresponding to each grid in the serving cell 1) in the form of a periodic broadcast.

[0141] In some embodiments, any terminal device within the ground coverage area will search for surrounding cell signals, measure the signal quality of each surrounding cell, receive system information of the cell sent by the network device, and select the appropriate cell for access. For example, when the terminal device is in an idle state and performs cell reselection, the terminal device will detect the signal quality of the nearby neighboring cells. When a cell in the neighboring cell meets the cell reselection conditions, the terminal device reselects to the cell. For another example, when the terminal device is in a connected state and is currently connected to a cell, the terminal device can perform signal quality detection on the current serving cell and the neighboring cell. When it is determined that the signal quality of a neighboring cell is better than that of the serving cell, the cell switching process is triggered to control the terminal device to access the neighboring cell with better signal quality.

[0142] In the embodiment of the present application, among the terminals in the ground coverage area, there are target terminals that are far away from the neighboring cells, for example, the terminal UE1 in Figure 3. In actual application, this type of target terminal may not be able to search for information about the surrounding cells, and there is no current need to change cells. Therefore, this type of target terminal does not need to obtain a set of system information related to the neighboring cells. In view of this, the network device of the present application can first determine the edge area and non-edge area of ​​the coverage area of ​​the current serving cell. The edge area represents an area that is closer to the neighboring cell, and the terminal in the edge area has a greater cell switching demand.

[0143] The specific method for determining the edge area and non-edge area of ​​the coverage area is as follows:

[0144] Referring to Serving Cell 1 in FIG3 , the network device can first determine the edge sub-areas of the coverage area (e.g., edge sub-areas 1-4), where the location of edge sub-area 1 represents the location of a wave position of the cell. Wave position 1 in the figure corresponds to edge sub-area 1. This application does not impose any specific restrictions on the number of edge sub-areas in the coverage area. The network device then selects one or more candidate sub-areas in the coverage area that extend from the edge sub-area to the interior of the coverage area to a set distance, and uses the one or more candidate sub-areas as edge areas, such as the outer ring of serving cell 1. In this application, the set distance can be the width of several, dozens, or hundreds of wave positions, and can be set based on actual application requirements.

[0145] After determining the edge area, the network device may further remove the edge area from the coverage area to obtain remaining sub-areas, and finally use the remaining sub-areas as non-edge areas.

[0146] In the embodiments of the present application, the coverage area of ​​the service cell is related to the location where the network device is deployed and the beam emitted by the network device. The coverage area can be a fully enclosed area, and the shape of the coverage area can be a regular polygon, such as a regular quadrilateral, a regular hexagon, and a regular octagon. Of course, the shape of the coverage area can also be a circle, an ellipse, a star, or any other arbitrary shape. This application does not impose specific restrictions on this. To facilitate the subsequent explanation of edge areas and non-edge areas, this application uses the shape of the coverage area as a regular hexagon as an example for explanation.

[0147] In an embodiment of the present application, as shown in FIG3 , the edge area may be the outer periphery of a fully enclosed area, and for different satellite systems, the size of the satellite's ground coverage area may be different, and the period for sending system information sets to terminal devices may be different. The width of the outer periphery may be set to a width of n wave bits, where n is an integer greater than or equal to 1, for example, a width of 1 wave bit or a width of 2 wave bits. The present application does not impose any specific restrictions on the width of the outer periphery. During implementation, the network device may define an edge area as narrow as possible, provided that the terminal device has sufficient time in the edge area to receive the system information set related to the neighboring cell. This can reduce the power consumption of the network device in sending the system information set related to the neighboring cell, thereby improving the utilization of channel resources.

[0148] In the embodiment of the present application, since different orbital satellites have different rotation periods around the earth, in order to further reduce the power consumption of the network device in sending the neighboring area related system information set and improve the utilization rate of channel resources, the network device can also simplify the edge area. The specific simplification process is as follows:

[0149] Referring to FIG4 , FIG4 is a simplified schematic diagram of the edge area provided by an embodiment of the present invention. After determining the edge area and the non-edge area of ​​the coverage area of ​​the current serving cell, the network device may first determine whether the moving speed of the coverage area (its own moving speed) is greater than the moving speed of the terminal in the coverage area. When it is determined that the moving speed of the coverage area is greater than the moving speed of the terminal in the coverage area, the network device may determine the upper periphery of the edge area projected in the direction of satellite movement (as shown in FIG4 , the edge 1 to the edge 4 of the hexagonal edge area) and the lower periphery opposite to the upper periphery (as shown in FIG4 , the edge 5 to the edge 6 of the hexagonal edge area). Since the moving speed of the coverage area is greater than The moving speed of the terminal is such that the terminal may only enter the coverage area of ​​the current service cell from the upper periphery and will not enter the coverage area of ​​the current service cell from the lower periphery. Therefore, the network device may modify the lower periphery of the edge area to a non-edge area; that is, only the upper periphery of the coverage area is used as the final edge area. When the network device determines that the moving speed of the coverage area is less than or equal to the moving speed of the terminal in the coverage area, the terminal may enter the coverage area of ​​the current service cell from the upper periphery or the lower periphery. Therefore, the network device may keep any periphery of the edge area (edge ​​1-edge 6) unchanged, that is, the upper periphery and the lower periphery of the coverage area are used as the final edge areas.

[0150] By determining the edge areas and non-edge areas of the coverage area of ​​the service cell and streamlining the edge areas according to the moving speed of the network equipment and the terminal, the power consumption of the network equipment in sending the system information set can be reduced as much as possible, air interface resources can be saved, and the utilization rate of channel resources can be improved.

[0151] S2, sends the first broadcast information to the edge area and sends the second broadcast information to the non-edge area, wherein the first broadcast information includes a system information set related to the neighboring areas of the service cell and other information sets unrelated to the neighboring areas of the service cell; the second broadcast information includes other information sets and does not include the system information set.

[0152] In an embodiment of the present application, referring to FIG5 , FIG5 is a flow chart of a network device according to an embodiment of the present invention sending other information sets in a non-edge area. After determining the edge area and the non-edge area of ​​the serving cell, the network device can send other information sets that are not related to the neighboring area of ​​the serving cell to the terminal device located in the edge area in the form of broadcasting, for example, satellite configuration information related to the serving cell (ntn-config for serving cell in SIB19), and system information sets related to the neighboring area of ​​the serving cell (ntn-NeighCellConfigList in SIB2-5 and SIB19), i.e., the first broadcast information; and send other information sets that are not related to the neighboring area of ​​the serving cell to the terminal located in the non-edge area, i.e., the second broadcast information.

[0153] In the embodiment of the present application, other information sets include scheduling information of system information, for example, scheduling information of a system information set related to a serving cell or scheduling information of a system information set related to a neighboring cell of the serving cell. The scheduling information is used to instruct the terminal to obtain the system information set related to the neighboring cell in an on-demand request manner or a direct retrieval manner.

[0154] Specifically, if the scheduling type of the system information set in the scheduling information is configured as non-broadcast type (si-BroadcastStatus is set to notBroadcasting), it indicates that the system information set (ntn-NeighCellConfigList in SIB2-5 and SIB19) needs to be obtained by the terminal in an on-demand request (on demand SI) manner.

[0155] In an embodiment of the present application, if the scheduling type of the system information set in the scheduling information is configured as a broadcast type (si-BroadcastStatus is set to Broadcasting), the terminal is instructed to directly obtain the ntn-NeighCellConfigList in SIB2-5 and SIB19; for the edge area, the network device can broadcast the system information set and other information sets related to the neighboring area to the edge area. Specifically, the si-BroadcastStatus corresponding to the system information set and other information sets can be set to Broadcasting.

[0156] In an embodiment of the present application, the system information set related to the neighboring cells of the serving cell includes at least the neighboring satellite configuration (ntn-NeighCellConfigList) in SIB19. The neighboring satellite configuration is obtained by adding the sibType19Neigh subtype to the existing system information block type (SIB-TypeInfo). If the scheduling type of the neighboring satellite configuration is configured as a broadcast type, the terminal can directly obtain the neighboring satellite configuration; if the scheduling type of the neighboring satellite configuration is configured as a non-broadcast type, the terminal needs to obtain the neighboring satellite configuration by means of an updated on-demand SI request. In the existing solution, the system information block type does not have the sibType19Neigh subtype. Therefore, the terminal device cannot request the neighboring satellite configuration in SIB19 from the network device in an on-demand request manner.

[0157] By broadcasting the neighboring cell-related system information set to the edge area of ​​the service cell, since in most scenarios, the terminals enter the service cell through cell reselection or switching in the edge area of ​​the service cell, these terminals can directly obtain the neighboring cell-related system information set in the edge area; by sending only other information sets to the non-edge area of ​​the service cell, the other information sets include scheduling information of the system information. If the terminal device has not received the neighboring cell-related system information set in the edge area, it can request the neighboring cell-related system information set from the network device, avoiding the network device from periodically sending the neighboring cell-related system information set to all areas covered by the service cell, reducing the transmission power consumption of the network device in sending the system information set, saving air interface resources, and improving the utilization of channel resources.

[0158] In an embodiment of the present application, in order to ensure that terminal devices located in non-edge areas can also obtain system information sets related to neighboring areas, the network device can configure the scheduling type of the system information set related to the neighboring area in the second broadcast information to be a non-broadcast type when sending the second broadcast information to the non-edge area; determine whether a request for obtaining the system information set related to the neighboring area is received by the terminal in the non-edge area based on an on-demand request; when it is determined that the request for obtaining the system information set is received, send the system information set related to the neighboring area to the terminal according to the acquisition request; when it is determined that the request for obtaining the system information set is not received, broadcast other information sets to the non-edge area, and do not broadcast the system information set.

[0159] In summary, the broadcast method provided by the present application is that the network device can determine the edge area and non-edge area of ​​the coverage area of ​​the service cell, broadcast the first broadcast information to the edge area, and send the second broadcast information to the non-edge area; in other information sets, the scheduling information of the system information is included. When it is determined that non-broadcast type neighboring area related system information has not been received, the terminal device can determine the request method for requesting the neighboring area related system information set from the network device based on the scheduling information, so as to request the neighboring area related system information set from the network device. The above method avoids broadcasting the same neighboring area related system information set to all areas within the coverage area, can reduce the transmission power consumption of the network device in sending the system information set, save air interface resources, and improve the utilization rate of channel resources.

[0160] Example 2:

[0161] Based on the network architecture shown in Figure 2 above, the present application also provides a method for receiving broadcast information, which can be run in a terminal device, specifically including: first, when accessing a network device in a non-edge area, receiving the broadcast information sent by the network device, wherein the broadcast information includes other information sets that are not related to the neighboring areas of the service cell of the network device, and does not include a system information set related to the neighboring areas of the service cell, and the other information sets include scheduling information of the system information set related to the neighboring areas of the service cell; then, based on the scheduling information in the broadcast information, determining the scheduling type of the system information set, and obtaining the system information set according to the data acquisition method corresponding to the scheduling type.

[0162] Through the method provided in the present application, when a terminal accesses a network device in a non-edge area, it first receives the broadcast information sent by the network device; then, based on the scheduling information in the broadcast information, it determines the scheduling type of the system information set; finally, it obtains the system information set according to the data acquisition method corresponding to the scheduling type, which can avoid each terminal within the coverage area of ​​the service cell receiving the same neighboring area-related system information; by broadcasting the neighboring area-related system information set with a broadcast scheduling type in the edge area and broadcasting the neighboring area-related system information set with a non-broadcast scheduling type in the non-edge area, it can reduce the transmission power consumption of the satellite-transmitted system information set and improve the utilization rate of channel resources.

[0163] 6 , which is a flowchart of a method for receiving broadcast information provided in Embodiment 2 of the present application, the method includes:

[0164] S1, when accessing a network device in a non-edge area, receiving broadcast information sent by the network device.

[0165] In an embodiment of the present application, it is assumed that network device 1 includes service cell 1, network device 2 includes service cell 2, and service cell 1 provides network 1, and service cell 2 provides network 2. When the terminal device determines that the service cell (network 1) has changed to the current satellite cell (network 2) (i.e., when the terminal device reselects access), or when the terminal device determines that it has entered the coverage range of the satellite cell of the current network device (i.e., when the terminal device initially accesses), it will receive the broadcast information sent by the current network device; the difference is that the terminal devices accessing the network device in different areas have different contents of the broadcast information received by the terminal devices. Specifically, for terminal devices accessing the network device in a non-edge area of ​​the service cell, the broadcast information includes other information sets that are not related to the neighboring areas of the service cell of the network device, and does not include a system information set related to the neighboring areas of the service cell. The other information sets include scheduling information of the system information set related to the neighboring areas of the service cell; for terminal devices accessing the network device in an edge area of ​​the service cell, the broadcast information received by the terminal also includes a system information set related to the neighboring areas of the satellite cell. During specific implementation, the terminal device can determine whether the serving cell has been switched by judging whether the frequency or physical cell identifier has changed.

[0166] In the above manner, when the terminal device accesses the network device in a non-edge area, it can receive the broadcast information related to the switched service cell sent by the network device.

[0167] S2. Determine the scheduling type of the system information set based on the scheduling information, and obtain the system information set according to a data acquisition method corresponding to the scheduling type.

[0168] In conjunction with the above embodiment, refer to Figure 7. Figure 7 is a schematic diagram of a scenario in which a terminal device receives broadcast information provided by an embodiment of the present invention. In this scenario, terminals accessing a network device in an edge area or a non-edge area can receive broadcast information, but in the present application, the terminals located in the edge area and the non-edge area obtain neighboring area related system information sets in different ways. In an embodiment of the present application, a terminal accessing a network device in an edge area (such as UE1, UE2) can directly obtain a neighboring area related system information set from the broadcast information. This method is the same as the prior art, and the repeated parts are not repeated here; while a terminal accessing a network device in a non-edge area (such as UE3-UE5) needs to request a neighboring area related system information set from the network device through an on-demand system information request method (on demand SI). In specific implementation, after receiving the broadcast information sent by the network device, the terminal device can first determine the scheduling type of the system information set based on the scheduling information of the system information set related to the neighboring area of ​​the service cell in the broadcast information, and then obtain the system information set according to the data acquisition method corresponding to the scheduling type.

[0169] In an embodiment of the present application, the scheduling type can be a broadcast type or a non-broadcast type. For a terminal accessing in an edge area, the scheduling type of the system information in the broadcast information it receives is a broadcast type, and the terminal device can determine that it can directly obtain a set of system information related to the neighboring area; for a terminal accessing in a non-edge area, the scheduling type of the system information set in the broadcast information it receives is a non-broadcast type, and the terminal device can first determine its current operating status and determine the data request method corresponding to the current operating status, and finally request a set of system information related to the neighboring area from the network device according to the data request method corresponding to the current operating status.

[0170] Under normal circumstances, most terminal devices in non-edge areas enter the satellite cell from the edge area of ​​the service cell. According to the existing 3GPP specifications, such terminal devices can receive broadcasts containing other information sets of the service cell and broadcasts of system information sets related to the neighboring cells of the service cell in the edge area. However, some special terminal devices in non-edge areas may have entered the service cell without passing through the edge area of ​​the service cell or have received complete broadcast information in the edge area, but need to update the system information sets related to the neighboring cells in the non-edge area. For example, a terminal that is turned on in a non-edge area, a terminal that is temporarily disconnected from the original cell and enters the current service cell, and a terminal that has received a system information set in the edge area of ​​the service cell but the system information set has expired in the non-edge area.

[0171] In order to enable the above-mentioned special terminal devices to also obtain the system information set related to the neighboring cells, the existing on-demand system information request method (on demand SI) can be used to obtain the system information set related to the neighboring cells:

[0172] Regarding the existing on-demand system information request (on demand SI) process, the existing 3GPP protocol does not support the terminal requesting the neighboring cell-related system information SIB19 or the neighboring satellite configuration in SIB19 from the network device in a request manner, and only supports obtaining SIB19 through broadcast. Since SIB19 contains the information necessary for local satellite access, in order to facilitate special terminal devices to obtain the neighboring satellite configuration in SIB19 according to actual application requirements, this application expands the request for SIB19 neighbor-related content based on the existing on-demand SI process, and proposes a data request method corresponding to the operating state for terminals in different operating states to request the neighboring cell-related system information set from the network device. When expanding the request for SIB19 neighbor-related content, specifically, a new subtype can be defined in the existing type SIB-TypeInfo: sibType19Neigh, and this subtype can be used to indicate that the neighboring cell-related ephemeris information (ntn-NeighCellConfigList in SIB19) needs to be obtained in an updated on-demand SI manner.

[0173] Refer to Figure 8, which is a flowchart of a terminal device located in a non-edge area and in an idle state obtaining a system information set provided by an embodiment of the present invention. As shown in Figure 8, the terminal device first receives the MIB, SIB1 and satellite configuration information related only to the serving cell (ntn-config for serving cell in SIB19) sent by the network device.

[0174] In an embodiment of the present application, as shown in FIG8 , the terminal device can determine the scheduling type of the system information set related to the neighboring cell based on the scheduling information in SIB1, that is, determine the respective scheduling types of SIB2-5 and SIB19. When the terminal device determines that the scheduling type of the neighboring cell-related system information set is a non-broadcast type and its own operating state is an idle state, the terminal device can first determine whether there is any non-broadcast type system information that has not been received. When it is determined that there is any non-broadcast type neighboring cell-related system information that has not been received, the terminal device can initiate a random access process and initiate a first acquisition request (UE request for on demand system information) for the neighboring cell-related system information set to the network device through an on-demand system information request method, so that the network device sends the neighboring cell-related system information set to the current terminal according to the first acquisition request, that is, sends SIB2-5 and SIB19 with ntn-NeighCellConfigList. This application does not impose specific restrictions on the type and quantity of the neighboring cell-related system information to be obtained in the first acquisition request. In actual application, the terminal device can request the corresponding target system information in the neighboring cell-related system information set defined by the network device; when the terminal device determines that no non-broadcast type system information has not been received, it continues to use the received system information.

[0175] Referring to Figure 9, Figure 9 is a flowchart of a terminal device located in a non-edge area and in a connected state obtaining a system information set provided by an embodiment of the present invention. For a terminal device in a connected state, the prior art obtains on-demand SI through a dedicated system information request (Dedicated SIB Request) process. Since the dedicated system information request process only supports the acquisition of SIB12-SIB14, SIB20-SIB21 and posSIB, the present application extends the SIB-ReqInfo in the Dedicated SIB Request message to support the acquisition of neighboring area related system information such as SIB2-SIB5 and SIB19Neigh. The specific process is as follows:

[0176] As shown in Figure 9, a terminal device located in a non-edge area and in a connected state will first receive the MIB, SIB1, and satellite configuration information related only to the serving cell (ntn-config for serving cell in SIB19) sent by the network device.

[0177] When the terminal device determines, based on the scheduling information, that the scheduling type of the neighboring cell-related system information set is a non-broadcast type and its own operating state is a connected state, it can report a second acquisition request for the neighboring cell-related system information set to the network device through a dedicated system information request, so that the network device can send the neighboring cell-related system information set to the current terminal based on the second acquisition request. For example, the terminal reports a Dedicated SIB Request, and the reported Dedicated SIB Request includes a request list RequestedSIB-List for neighboring cell-related system information. The terminal device can fill in the information of the neighboring cell-related system information set to be obtained in the request list, and request the network device to send SIB2-SIB5 and SIB19 with ntn-NeighCellConfigList. Finally, when the network device receives the Dedicated SIB Request reported by the terminal device, it can send the neighboring cell-related system information set to the terminal device through the Dedicated systeminformation Delivery in RRCReconfiguration.

[0178] For the current 3GPP protocol, since SIB19 needs to carry the ephemeris information of the local star and the neighboring stars, and the terminal in the idle state needs the assistance of the ephemeris information of the local star to access the network and synchronize with the uplink, the standard SIB19 must be sent in a broadcast form. Based on this, the present application decouples the satellite configuration information (local star ephemeris information) and the neighboring area-related ephemeris information (neighboring area ephemeris information) in SIB19, and can configure different scheduling types for them respectively. For example, the satellite configuration information in SIB19 is configured as a broadcast type, while the neighboring area-related ephemeris information is configured as a non-broadcast type. The network device can broadcast two sets of SIB19 in one cell, that is, broadcast SIB19 with local star ephemeris information and neighboring area ephemeris information in the edge area of ​​the cell; broadcast SIB19 without neighboring area ephemeris information in the non-edge area of ​​the cell. Broadcasting two sets of SIB19 in this decoupled manner avoids sending neighboring area-related system information sets to terminal devices (terminal devices in non-edge areas) with less demand for neighboring area-related system information sets, which can reduce the transmission power consumption of network devices sending neighboring area-related system information sets, save air interface resources, and improve the utilization of channel resources.

[0179] For the current 3GPP protocol, the Dedicated SIB Request used to apply for a system information set in a connected state does not support applying for a neighboring cell-related system information set. In view of this, the present application enhances the Dedicated SIB Request and extends the SIB-ReqInfo field so that the network device supports the terminal device in the connected state to apply for a neighboring cell-related system information set (including the neighboring cell information ntn-NeighCellConfigList in SIB2-SIB5 and SIB19). By extending the SIB-ReqInfo field, a terminal device located in a non-edge area and in a connected state can request a neighboring cell-related system information set from the network device when it determines that non-broadcast type neighboring cell-related system information has not been received, thereby reducing the power consumption of the network device in sending the neighboring cell-related system information set to the terminal device, saving air interface resources, and improving the utilization of channel resources.

[0180] In order to more clearly illustrate the inventive point of the present application, the following, in combination with the above-mentioned Example 1, Example 2 and Figure 10, illustrates the process of terminal devices (including terminal devices in idle state and connected state) located in edge areas and non-edge areas obtaining a set of system information related to neighboring areas.

[0181] (1) For terminal devices located in edge areas and in idle state;

[0182] Step 1: First, the network device sends a first broadcast message to the terminal device (UE1) located in the edge area. The first broadcast message includes (1) MIB, (2) SIB1, wherein SIB1 includes scheduling information of SIB2-5 and SIB19, and it can be determined that SIB2-5 and SIB19 are both sent via broadcast type, (3) SIB2-5, (4) SIB19, wherein SIB19 carries local star ephemeris information and neighboring star ephemeris information.

[0183] Step 2: The terminal device UE1 that enters the edge area of ​​cell 1 (Cell 1) and is in an idle state (including terminal devices that reside in cell 1 through various forms such as cell selection / reselection / switching / redirection) directly obtains a set of system information related to the neighboring cell from the first broadcast information in accordance with the 3GPP protocol specification.

[0184] It should be pointed out here that for terminal devices entering the edge area of ​​cell 1 and in a connected state, the process of obtaining a set of neighboring cell-related system information is the same as that of the terminal devices entering the edge area of ​​cell 1 and in an idle state, and the repeated parts will not be repeated.

[0185] (2) For a terminal device (UE2) located in a non-edge area and in an idle state;

[0186] Step 1: First, the network device sends a second broadcast message to the terminal device UE2 located in the non-edge area. The second broadcast message includes (1) MIB, (2) SIB1, wherein SIB1 includes the scheduling information of SIB2-5 and SIB19, and it can be determined that the local star ephemeris information in SIB19 is sent in a broadcast type; the neighboring star ephemeris information in SIB2-SIB5 and SIB19 is sent in a non-broadcast type (that is, in the system information scheduling of SIB1, the si-BroadcastStatus of SIB2-SIB5 and SIB19NeighCell is configured as notBroadcasting), and (3) SIB19, which only carries the local star ephemeris information and does not carry the neighboring star ephemeris information.

[0187] Step 2: For terminal devices that are temporarily disconnected from the network and enter the non-edge area of ​​cell 1 and are in an idle state (special terminal devices, these special terminal devices do not receive neighboring cell-related system information through broadcasting in the edge area), obtain SIB2-SIB5 and SIB19 (including ntn-NeighCellConfigList) according to the improved on demand SI process of this application.

[0188] (3) For a terminal device (UE3) located in a non-edge area and in a connected state;

[0189] Step 1: First, the network device sends a second broadcast message to the terminal device UE3 located in the non-edge area, and the broadcast message includes (1) MIB, (2) SIB1, wherein SIB1 includes the scheduling information of SIB2-5 and SIB19, and it can be determined that the local star ephemeris information in SIB19 is sent in a broadcast type; the neighboring star ephemeris information in SIB2-SIB5 and SIB19 is sent in a non-broadcast type (that is, in SIB1, the si-BroadcastStatus of SIB2-SIB5 and SIB19NeighCell is configured as notBroadcasting), (3) SIB19, which only carries the local star ephemeris information and does not carry the neighboring star ephemeris information.

[0190] Step 2: For terminal devices that are powered on in the non-edge area of ​​cell 1 and in a connected state (special terminal devices, these special terminal devices do not receive the neighboring area-related system information set by broadcasting in the edge area), when the terminal device determines that the neighboring area-related system information has not been received, the terminal device applies for SIB2-SIB5 and SIB19 (including ntn-NeighCellConfigList) using the Dedicated SIB Request enhanced message provided in this application; the network device sends SIB2-SIB5 and SIB19 (including ntn-NeighCellConfigList) to the terminal device through the dedicated system information Delivery in RRCReconfiguration.

[0191] To sum up, the method provided by the present application is that since the satellite communication system has a wider coverage range and more wave positions, and the overlapping coverage range between cells is limited, the terminal only needs to perform neighboring cell measurements at the edge of the cell to ensure the continuity of the terminal's use of network services in dynamic scenarios; in the prior art, the network equipment is required to repeatedly send all neighboring cell-related system information sets throughout the entire cell, while the present application sends neighboring cell-related system information sets by combining broadcasting in the edge area of ​​the cell and terminal requests in the non-edge area of ​​the cell, which greatly reduces the area where the network equipment repeatedly sends the system information set, and the present application improves the existing on demand SI process and enhances the Dedicated SIB Request, so that it can meet the terminal's needs for obtaining neighboring cell-related system information sets in various scenarios, can reduce the power consumption of the network equipment in sending neighboring cell-related system information sets, save air interface resources, and improve the utilization of channel resources.

[0192] Based on the method provided in the first embodiment above, the present application also provides a broadcasting device corresponding to the method. FIG11 is a schematic structural diagram of a broadcasting device corresponding to the first embodiment of the present application, and the device includes:

[0193] An area division module 1101 is configured to determine an edge area and a non-edge area of ​​a coverage area of ​​a current serving cell;

[0194] The data sending module 1102 is used to send the first broadcast information to the edge area and send the second broadcast information to the non-edge area; wherein the first broadcast information includes a system information set related to the neighboring area of ​​the service cell and other information sets unrelated to the neighboring area of ​​the service cell; the second broadcast information includes the other information set and does not include the system information set.

[0195] In a possible implementation, the data sending module 1102 is further configured to:

[0196] The other information set includes scheduling information of system information, where the scheduling information is used to instruct the terminal to obtain the system information set in an on-demand request manner or a direct extraction manner;

[0197] If the scheduling type of the system information set in the scheduling information is configured as a broadcast type; instructing the terminal to directly obtain the system information set;

[0198] If the scheduling type of the system information set is configured as a non-broadcast type in the scheduling information, the terminal is instructed to obtain the system information set in the on-demand request manner.

[0199] In a possible implementation, the system information set includes at least: neighboring satellite configuration in SIB19;

[0200] If the scheduling type of the neighboring satellite configuration is configured as a broadcast type, instructing the terminal to directly obtain the neighboring satellite configuration;

[0201] If the scheduling type of the neighboring satellite configuration is configured as a non-broadcast type, the terminal is instructed to obtain the neighboring satellite configuration in an on-demand request manner.

[0202] In a possible implementation, the data sending module 1102 is specifically configured to:

[0203] Configuring the scheduling type of the system information set in the second broadcast information to a non-broadcast type;

[0204] determining whether a request for obtaining the system information set initiated by a terminal in the non-edge area based on the on-demand request manner is received;

[0205] If yes, sending the system information set to the terminal based on the acquisition request;

[0206] If not, broadcast the other information set to the non-edge area.

[0207] In a possible implementation, the region division module 1101 is specifically configured to:

[0208] determining an edge sub-area of ​​the coverage area;

[0209] In the coverage area, one or more sub-areas to be selected are selected, extending from the edge sub-area to the interior of the coverage area to a set distance;

[0210] The one or more to-be-selected sub-areas are used as the edge areas, and the remaining sub-areas in the coverage area are used as the non-edge areas.

[0211] In a possible implementation, the region division module 1101 is further configured to:

[0212] determining whether a moving speed of the coverage area is greater than a moving speed of a terminal within the coverage area;

[0213] If yes, determining an upper periphery of the edge area projected in the moving direction and a lower periphery opposite to the upper periphery, and modifying the lower periphery into a non-edge area;

[0214] If not, any perimeter of the edge region is kept unchanged.

[0215] Based on the method provided in the second embodiment above, the present invention further provides a device for receiving broadcast information corresponding to the method. FIG12 is a schematic structural diagram of a device for receiving broadcast information corresponding to the second embodiment of the present invention. The device includes:

[0216] A data receiving module 1201 is configured to receive broadcast information sent by a network device when accessing the network device in a non-edge area, wherein the broadcast information includes a set of other information unrelated to a neighboring area of ​​a serving cell of the network device and does not include a set of system information related to a neighboring area of ​​the serving cell, and the set of other information includes scheduling information of the system information set;

[0217] The data processing module 1202 is configured to determine a scheduling type of the system information set based on the scheduling information, and acquire the system information set in a data acquisition manner corresponding to the scheduling type.

[0218] In a possible implementation, the data processing module 1202 is specifically configured to:

[0219] Determining, based on the scheduling information, whether the scheduling type is a broadcast type or a non-broadcast type;

[0220] If the scheduling type is the broadcast type, determining that the data acquisition method is to directly acquire the system information set;

[0221] If the scheduling type is the non-broadcast type, the data acquisition method is determined to be based on the current operating state of the terminal, a data request method corresponding to the operating state is determined, and the system information set is requested from the network device according to the data request method.

[0222] In a possible implementation, if the running state is an idle state, the data processing module 1202 is specifically configured to:

[0223] Determine whether any non-broadcast system information has not been received;

[0224] If so, initiating a random access process, and initiating a first acquisition request for the system information set to the network device through an on-demand system information request, so that the network device sends the system information set to the current terminal based on the first acquisition request, wherein the first acquisition request at least includes a request to obtain neighboring satellite configuration related information in SIB2-5 and SIB19;

[0225] If not, continue to use the received system information.

[0226] In a possible implementation, if the running state is a connected state, the data processing module 1202 is specifically configured to:

[0227] A second acquisition request for the system information set is reported to the network device in a dedicated system information request manner, so that the network device sends the system information set to the current terminal based on the second acquisition request, wherein the second acquisition request at least includes a request for obtaining neighboring satellite configuration related in SIB2-5 and SIB19.

[0228] Based on the same inventive concept, an embodiment of the present application further provides an electronic device that can implement the functions of the aforementioned broadcasting device or the device for receiving broadcast information. Referring to FIG. 13 , the electronic device includes:

[0229] At least one processor 1301, and a memory 1302 connected to at least one processor 1301. In the embodiments of the present application, the specific connection medium between the processor 1301 and the memory 1302 is not limited. FIG13 takes the connection between the processor 1301 and the memory 1302 via the bus 1300 as an example. The bus 1300 is represented by a bold line in FIG13, and the connection method between other components is only for schematic illustration and is not intended to be limiting. The bus 1300 can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one bold line is used in FIG13, but this does not mean that there is only one bus or one type of bus. Alternatively, the processor 1301 can also be called a controller, and there is no limitation on the name.

[0230] In the embodiment of the present application, memory 1302 stores instructions executable by at least one processor 1301. At least one processor 1301 can execute the broadcast method or the method for receiving broadcast information discussed above by executing the instructions stored in memory 1302. Processor 1301 can implement the functions of each module in the apparatus shown in Figures 11 or 12.

[0231] Among them, the processor 1301 is the control center of the device, which can use various interfaces and lines to connect the various parts of the entire control device, and monitor the device as a whole by running or executing instructions stored in the memory 1302 and calling data stored in the memory 1302, the various functions of the device and processing data.

[0232] In one possible design, processor 1301 may include one or more processing units. Processor 1301 may integrate an application processor and a modem processor. The application processor primarily processes the operating system, user interface, and application programs, while the modem processor primarily handles wireless communications. It is understood that the modem processor may not be integrated into processor 1301. In some embodiments, processor 1301 and memory 1302 may be implemented on the same chip. In some embodiments, they may also be implemented on separate chips.

[0233] The processor 1301 can be a general-purpose processor, such as a central processing unit (CPU), a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the broadcast method or the method for receiving broadcast information disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware processor, or can be executed by a combination of hardware and software modules in the processor.

[0234] Memory 1302 is a non-volatile computer-readable storage medium that can be used to store non-volatile software programs, non-volatile computer executable programs and modules. Memory 1302 may include at least one type of storage medium, such as a flash memory, a hard disk, a multimedia card, a card-type memory, a random access memory (Random Access Memory, RAM), a static random access memory (Static Random Access Memory, SRAM), a programmable read-only memory (Programmable Read Only Memory, PROM), a read-only memory (Read Only Memory, ROM), an electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), a magnetic memory, a disk, an optical disk, etc. Memory 1302 is any other medium that can be used to carry or store a desired program code in the form of an instruction or data structure and can be accessed by a computer, but is not limited thereto. The memory 1302 in the embodiment of the present application can also be a circuit or any other device that can realize a storage function, for storing program instructions and / or data.

[0235] By designing and programming the processor 1301, the code corresponding to the broadcast method or the method for receiving broadcast information described in the aforementioned embodiments can be embedded in the chip, thereby enabling the chip to execute the steps of the broadcast method of the embodiment shown in FIG1 or the method for receiving broadcast information of the embodiment shown in FIG6 during operation. Designing and programming the processor 1301 is well known to those skilled in the art and will not be further described here.

[0236] Based on the same inventive concept, an embodiment of the present application further provides a storage medium storing computer instructions. When the computer instructions are executed on a computer, the computer executes the broadcasting method or the method for receiving broadcast information discussed above.

[0237] In some possible implementations, various aspects of the broadcast method or method for receiving broadcast information provided in the present application can also be implemented in the form of a program product, which includes program code. When the program product is run on the device, the program code is used to enable the control device to execute the steps of the broadcast method or method for receiving broadcast information according to various exemplary embodiments of the present application described above in this specification.

[0238] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0239] The present application is described with reference to the flow chart and / or block diagram of the method, device (system), and computer program product according to the embodiment of the present application. It should be understood that each flow process and / or box in the flow chart and / or block diagram and the combination of the flow process and / or box in the flow chart and / or block diagram can be realized by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processing machine or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for realizing the function specified in one flow chart flow or multiple flows and / or one box or multiple boxes of the block diagram.

[0240] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0241] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0242] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A broadcast method, applied to a network device, characterized in that: include: Determine the edge area and non-edge area of ​​the coverage area of ​​the current serving cell; Sending first broadcast information to the edge area and sending second broadcast information to the non-edge area, wherein the first broadcast information includes a system information set related to the neighboring areas of the service cell and other information sets unrelated to the neighboring areas of the service cell; the second broadcast information includes the other information set and does not include the system information set.

2. The broadcasting method according to claim 1, wherein: The other information set includes scheduling information of system information, where the scheduling information is used to instruct the terminal to obtain the system information set in an on-demand request manner or a direct extraction manner; If, in the scheduling information, the scheduling type of the system information set is configured as a broadcast type, instructing the terminal to directly obtain the system information set; If the scheduling type of the system information set is configured as a non-broadcast type in the scheduling information, the terminal is instructed to obtain the system information set in the on-demand request manner.

3. The broadcasting method according to claim 1, wherein: The system information set includes at least: the neighboring satellite configuration in SIB19; If the scheduling type of the neighboring satellite configuration is configured as a broadcast type, instructing the terminal to directly obtain the neighboring satellite configuration; If the scheduling type of the neighboring satellite configuration is configured as a non-broadcast type, the terminal is instructed to obtain the neighboring satellite configuration in an on-demand request manner.

4. The broadcasting method according to claim 2, wherein: The sending the second broadcast information to the non-edge area includes: Configuring the scheduling type of the system information set in the second broadcast information to a non-broadcast type; determining whether a request for obtaining the system information set initiated by a terminal in the non-edge area based on the on-demand request manner is received; If yes, sending the system information set to the terminal based on the acquisition request; If not, broadcast the other information set to the non-edge area.

5. The broadcasting method according to claim 1, wherein: Determining the edge area and the non-edge area of ​​the coverage area of ​​the current serving cell includes: determining an edge sub-area of ​​the coverage area; In the coverage area, one or more sub-areas to be selected are selected, extending from the edge sub-area to the interior of the coverage area to a set distance; The one or more to-be-selected sub-areas are used as the edge areas, and the remaining sub-areas in the coverage area are used as the non-edge areas.

6. The broadcasting method according to claim 1, wherein: After determining the edge area and the non-edge area of ​​the coverage area of ​​the current serving cell, the method further includes: determining whether a moving speed of the coverage area is greater than a moving speed of a terminal within the coverage area; If yes, determining an upper periphery of the edge area projected in the moving direction and a lower periphery opposite to the upper periphery, and modifying the lower periphery into a non-edge area; If not, any perimeter of the edge region is kept unchanged.

7. The broadcasting method according to claim 1, wherein: The coverage area is a fully enclosed area, the edge area is an outer periphery of the fully enclosed area, and the width of the outer periphery is equal to the width of n wave positions, where n is an integer greater than or equal to 1.

8. A method for receiving broadcast information, applied to a terminal device, characterized in that: include: When accessing a network device in a non-edge area, receiving broadcast information sent by the network device, wherein the broadcast information includes a set of other information unrelated to neighboring cells of a serving cell of the network device and does not include a set of system information related to neighboring cells of the serving cell, and the set of other information includes scheduling information of the system information set; Based on the scheduling information, a scheduling type of the system information set is determined, and the system information set is acquired in a data acquisition manner corresponding to the scheduling type.

9. The method for receiving broadcast information according to claim 8, wherein: The determining, based on the scheduling information, a scheduling type of the system information set, and acquiring the system information set in a data acquisition manner corresponding to the scheduling type, includes: Determining, based on the scheduling information, whether the scheduling type is a broadcast type or a non-broadcast type; If the scheduling type is the broadcast type, determining that the data acquisition method is to directly acquire the system information set; If the scheduling type is the non-broadcast type, the data acquisition method is determined to be based on the current operating state of the terminal, a data request method corresponding to the operating state is determined, and the system information set is requested from the network device according to the data request method.

10. The method for receiving broadcast information according to claim 9, wherein: If the running state is an idle state, requesting the system information set from the network device according to the data request method includes: Determine whether any non-broadcast system information has not been received; If so, initiating a random access process, and initiating a first acquisition request for the system information set to the network device through an on-demand system information request, so that the network device sends the system information set to the current terminal based on the first acquisition request, wherein the first acquisition request at least includes a request to obtain neighboring satellite configuration related information in SIB2-5 and SIB19; If not, continue to use the received system information.

11. The method for receiving broadcast information according to claim 9, wherein: If the running state is a connected state, requesting the system information set from the network device according to the data request method includes: Reporting a second acquisition request of the system information set to the network device in a dedicated system information request manner, so that the network device sends the system information set to the current terminal based on the second acquisition request, wherein In the embodiment, the second acquisition request at least includes a request to obtain the neighboring satellite configuration related request in SIB2-5 and SIB19.

12. A broadcasting device, characterized in that: include: An area division module is used to determine the edge area and non-edge area of ​​the coverage area of ​​the current serving cell; A data sending module, used to send first broadcast information to the edge area and send second broadcast information to the non-edge area; wherein the first broadcast information includes a system information set related to the neighboring area of ​​the service cell and other information sets unrelated to the neighboring area of ​​the service cell; the second broadcast information includes the other information set and does not include the system information set.

13. The broadcasting device according to claim 12, wherein The data sending module is further used for: The other information set includes scheduling information of system information, where the scheduling information is used to instruct the terminal to obtain the system information set in an on-demand request manner or a direct extraction manner; If, in the scheduling information, the scheduling type of the system information set is configured as a broadcast type, instructing the terminal to directly obtain the system information set; If the scheduling type of the system information set is configured as a non-broadcast type in the scheduling information, the terminal is instructed to obtain the system information set in the on-demand request manner.

14. The broadcasting device according to claim 12, wherein The system information set includes at least: the neighboring satellite configuration in SIB19; If the scheduling type of the neighboring satellite configuration is configured as a broadcast type, instructing the terminal to directly obtain the neighboring satellite configuration; If the scheduling type of the neighboring satellite configuration is configured as a non-broadcast type, the terminal is instructed to obtain the neighboring satellite configuration in an on-demand request manner.

15. The broadcasting device according to claim 13, wherein The data sending module is specifically used for: Configuring the scheduling type of the system information set in the second broadcast information to a non-broadcast type; determining whether a request for obtaining the system information set initiated by a terminal in the non-edge area based on the on-demand request manner is received; If yes, sending the system information set to the terminal based on the acquisition request; If not, broadcast the other information set to the non-edge area.

16. The broadcasting device according to claim 12, wherein The area division module is specifically used for: determining an edge sub-area of ​​the coverage area; In the coverage area, one or more sub-areas to be selected are selected, extending from the edge sub-area to the interior of the coverage area to a set distance; The one or more to-be-selected sub-areas are used as the edge areas, and the remaining sub-areas in the coverage area are used as the non-edge areas.

17. The broadcasting device according to claim 12, wherein The area division module is also used for: determining whether a moving speed of the coverage area is greater than a moving speed of a terminal within the coverage area; If yes, determining an upper periphery of the edge area projected in the moving direction and a lower periphery opposite to the upper periphery, and modifying the lower periphery into a non-edge area; If not, any perimeter of the edge region is kept unchanged.

18. A device for receiving broadcast information, characterized in that: include: a data receiving module, configured to receive broadcast information sent by a network device when accessing the network device in a non-edge area, wherein the broadcast information includes a set of other information unrelated to a neighboring area of ​​a serving cell of the network device and does not include a set of system information related to a neighboring area of ​​the serving cell, and the set of other information includes scheduling information of the system information set; A data processing module is used to determine the scheduling type of the system information set based on the scheduling information, and obtain the system information set according to a data acquisition method corresponding to the scheduling type.

19. The apparatus for receiving broadcast information according to claim 18, wherein: The data processing module is specifically used for: Determining, based on the scheduling information, whether the scheduling type is a broadcast type or a non-broadcast type; If the scheduling type is the broadcast type, determining that the data acquisition method is to directly acquire the system information set; If the scheduling type is the non-broadcast type, the data acquisition method is determined to be based on the current operating state of the terminal, a data request method corresponding to the operating state is determined, and the system information set is requested from the network device according to the data request method.

20. The apparatus for receiving broadcast information according to claim 19, wherein: If the running state is the idle state, the data processing module is specifically configured to: Determine whether any non-broadcast system information has not been received; If so, initiating a random access process, and initiating a first acquisition request for the system information set to the network device through an on-demand system information request, so that the network device sends the system information set to the current terminal based on the first acquisition request, wherein the first acquisition request at least includes a request to obtain neighboring satellite configuration related information in SIB2-5 and SIB19; If not, continue to use the received system information.

21. The apparatus for receiving broadcast information according to claim 19, wherein: If the running state is the connected state, the data processing module is specifically configured to: A second acquisition request for the system information set is reported to the network device in a dedicated system information request manner, so that the network device sends the system information set to the current terminal based on the second acquisition request, wherein the second acquisition request at least includes a request for obtaining neighboring satellite configuration related in SIB2-5 and SIB19.

22. An electronic device, characterized in that: include: Memory for storing computer programs; The processor is configured to implement the steps of the broadcasting method described in any one of claims 1 to 7 or the steps of the method for receiving broadcast information described in any one of claims 8 to 11 when executing the computer program stored in the memory.

23. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the broadcasting method according to any one of claims 1 to 7 or the steps of the method for receiving broadcast information according to any one of claims 8 to 11 are implemented.

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