Information transmission method and apparatus, and storage medium

Abstract

The present disclosure provides an information transmission method and apparatus, and a storage medium. The method comprises: broadcasting a system message, wherein the system message is used for providing new radio non-terrestrial network communication (NR NTN) neighbor cell information, and the NR NTN neighbor cell information is used by a terminal for cell reselection. The present disclosure achieves the objective of reselection from E-UTRAN TN to NR NTN, and improves the availability of NTN communication.

Description

Information transmission method and device, and storage medium Technical Field

[0001] The present disclosure relates to the field of communications, and in particular to an information transmission method and device, and a storage medium. Background Art

[0002] Currently, non-terrestrial network (NTN) communication is increasingly used as an important supplement to terrestrial cellular network communication.

[0003] Summary of the Invention

[0004] To improve the availability of NTN communications, embodiments of the present disclosure provide an information transmission method and apparatus, and a storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, an information transmission method is provided. The method is performed by a terrestrial network device, where the terrestrial network device is a network device of an Evolved UMTS Terrestrial Radio Access Network (E-UTRAN TN), including:

[0006] Broadcast system messages. System messages are used to provide New Radio Non-Terrestrial Communication (NR / NTN) neighbor cell information. NR / NTN neighbor cell information is used by terminals for cell reselection.

[0007] According to a second aspect of an embodiment of the present disclosure, there is provided an information transmission method, which is executed by a terminal and includes:

[0008] Receive system messages broadcast by terrestrial network equipment. The terrestrial network equipment is the network equipment of the evolved UMTS terrestrial radio access network (E-UTRAN TN). The system messages are used to provide new radio non-terrestrial communication (NR NTN) neighbor cell information. The NR NTN neighbor cell information is used by the terminal for cell reselection.

[0009] According to a third aspect of an embodiment of the present disclosure, a terrestrial network device is provided. The terrestrial network device is a network device of an evolved UMTS terrestrial radio access network (E-UTRAN TN), including:

[0010] The transceiver module is configured to broadcast system messages. The system messages are used to provide new radio non-terrestrial communication NR NTN neighbor cell information. The NR NTN neighbor cell information is used by the terminal to perform cell reselection.

[0011] According to a fourth aspect of an embodiment of the present disclosure, a terminal is provided, including:

[0012] The transceiver module is configured to receive system messages broadcast by terrestrial network equipment. The terrestrial network equipment is a network device of the evolved UMTS terrestrial radio access network terrestrial communication E-UTRAN TN. The system message is used to provide new air interface non-terrestrial communication NR NTN neighbor cell information, and the NR NTN neighbor cell information is used by the terminal to perform cell reselection.

[0013] According to a fifth aspect of an embodiment of the present disclosure, there is provided a ground network device, including:

[0014] one or more processors;

[0015] The processor is used to execute the method of information transmission behavior of any one of the first aspects.

[0016] According to a sixth aspect of an embodiment of the present disclosure, a terminal is provided, including:

[0017] one or more processors;

[0018] The processor is used to execute any one of the information transmission methods of the second aspect.

[0019] According to the seventh aspect of an embodiment of the present disclosure, a communication system is provided, comprising a ground network device and a terminal, wherein the ground network device is configured to implement the information transmission method of any one of the first aspects, and the terminal is configured to implement the information transmission method of any one of the second aspects.

[0020] According to an eighth aspect of an embodiment of the present disclosure, a storage medium is provided, which stores instructions. When the instructions are executed on a communication device, the communication device executes the information transmission method as described in any one of the first aspect or the second aspect.

[0021] According to a ninth aspect of an embodiment of the present disclosure, a computer program product is provided, comprising a computer program, which, when executed by a processor, is used to implement the information transmission method described in any one of the first aspect or the second aspect.

[0022] In the embodiment of the present disclosure, the network equipment of the E-UTRAN TN can broadcast system messages to provide NR NTN neighbor cell information. The NR NTN neighbor cell information can be used by the terminal to perform cell reselection, that is, it can reselect from the E-UTRAN TN cell to the NR NTN neighbor cell, thereby achieving the purpose of reselecting from the E-UTRAN TN to the NR NTN and improving the availability of NTN communication.

[0023] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0025] FIG1 is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.

[0026] FIG2 is an exemplary interaction diagram of an information transmission method provided according to an embodiment of the present disclosure.

[0027] FIG3A is an exemplary interaction diagram of an information transmission method provided according to an embodiment of the present disclosure.

[0028] FIG3B is an exemplary interaction diagram of the information transmission method provided according to an embodiment of the present disclosure.

[0029] FIG4A is an exemplary block diagram of a ground network device according to an embodiment of the present disclosure.

[0030] FIG4B is an exemplary block diagram of a terminal provided according to an embodiment of the present disclosure.

[0031] FIG5A is an exemplary block diagram of a communication device according to an embodiment of the present disclosure.

[0032] FIG5B is an exemplary block diagram of a chip provided according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0033] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, like numbers in different figures represent like or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present invention, as detailed in the appended claims.

[0034] The embodiments of the present disclosure provide an information transmission method, an information transmission device, and a storage medium.

[0035] In a first aspect, an embodiment of the present disclosure provides an information transmission method, which is performed by a terrestrial network device, the terrestrial network device being a network device of an evolved UMTS terrestrial radio access network (E-UTRAN TN), including:

[0036] Broadcast system messages. System messages are used to provide New Radio Non-Terrestrial Communication (NR / NTN) neighbor cell information. NR / NTN neighbor cell information is used by terminals for cell reselection.

[0037] In the above embodiment, the network equipment of the E-UTRAN TN can broadcast system messages to provide NR NTN neighbor cell information. The NR NTN neighbor cell information can be used by the terminal to perform cell reselection, that is, it can reselect from the E-UTRAN TN cell to the NR NTN neighbor cell, thereby achieving the purpose of reselection from the E-UTRAN TN to the NR NTN and improving the availability of NTN communication.

[0038] In conjunction with some embodiments of the first aspect, in some embodiments, the NR NTN neighbor cell information includes at least one of the following:

[0039] Satellite ephemeris information;

[0040] First time information, the first time information is used to indicate the valid time of the satellite ephemeris information;

[0041] Satellite frequency information;

[0042] NR NTN neighbor cell identifier;

[0043] Satellite identification;

[0044] Satellite dish information;

[0045] The second time information is used to indicate the time when the NR NTN neighboring cell starts service.

[0046] In the above embodiment, the NR NTN neighbor cell information may include but is not limited to at least one of the above items, thereby achieving the purpose of providing NR NTN neighbor cell information through system messages to facilitate reselection from E-UTRAN TN to NR NTN, with high availability.

[0047] In conjunction with some embodiments of the first aspect, in some embodiments, the system message includes at least one of the following:

[0048] The first system information block SIB is used to provide NR neighbor cell information;

[0049] The second SIB is used to provide satellite information of neighboring cells of IoT NTN (non-terrestrial communication)

[0050] The third SIB is used to provide NR NTN neighbor cell information.

[0051] In the above embodiment, the existing first SIB or the existing second SIB can be reused, or a new SIB, such as the third SIB, can be used to provide NR NTN neighbor cell information through system messages so as to reselect from E-UTRAN TN to NR NTN, with high availability.

[0052] In conjunction with some embodiments of the first aspect, in some embodiments, when the system message includes a first SIB, the first SIB includes any one of the following:

[0053] Satellite information associated with NR neighbor cells;

[0054] Frequency information of NR neighbor cells and satellite identification information associated with the frequency information of NR neighbor cells.

[0055] In the above embodiment, the first SIB may include a new information element to provide satellite information associated with the NR neighbor cell, or reuse the existing information element in the first SIB to provide the frequency information of the NR neighbor cell while providing the satellite identification information associated with the frequency information of the NR neighbor cell. This achieves the purpose of providing NR NTN neighbor cell information through system messages, and has high availability.

[0056] In conjunction with some embodiments of the first aspect, in some embodiments, when the system message includes a second SIB, the second SIB includes any one of the following:

[0057] NR NTN neighbor cell information;

[0058] IoT NTN neighboring cell information, which includes at least one of the following:

[0059] Satellite dish information;

[0060] Satellite frequency information.

[0061] In the above embodiment, the second SIB may include a new information element to provide NR neighbor cell information, or the existing information element in the second SIB may be reused to provide satellite information in the information element providing IoT NTN neighbor cell information. This achieves the purpose of providing NR NTN neighbor cell information through system messages, with high availability.

[0062] In combination with some embodiments of the first aspect, in some embodiments, when the system message includes a third SIB, an update period of the third SIB is different from a system message update period.

[0063] In the above embodiment, when the system message includes the third SIB, the update period of the newly added third SIB may be different from the system message update period. The update period of the third SIB may be determined based on satellite ephemeris information, which is not limited in the present disclosure, and is simple to implement and has high usability.

[0064] In combination with some embodiments of the first aspect, in some embodiments, when the system message includes the third SIB, the label value of the system message is irrelevant to whether the third SIB is updated.

[0065] In the above embodiment, when the system message includes the third SIB, the change of the label value of the system message is irrelevant to the update of the third SIB.

[0066] In combination with some embodiments of the first aspect, in some embodiments, the system message includes a second SIB or a third SIB, and when the second SIB or the third SIB includes NR NTN satellite frequency information, the NR NTN satellite frequency information is associated with the frequency information of the NR neighbor cell included in the first SIB; or

[0067] The system message includes the second SIB or the third SIB, the second SIB or the third SIB includes NR NTN satellite identification information, and the first SIB includes satellite identification information associated with the frequency information of the NR neighbor cell.

[0068] In the above embodiment, when the system message includes the second SIB or the third SIB, the NR NTN satellite frequency information can be associated with the frequency information of the NR neighbor cell included in the first SIB, or the first SIB includes satellite identification information associated with the frequency information of the NR neighbor cell. This achieves the purpose of providing NR NTN neighbor cell information through the system message, and has high availability.

[0069] In a second aspect, an embodiment of the present disclosure provides an information transmission method, which is executed by a terminal and includes:

[0070] Receive system messages broadcast by terrestrial network equipment. The terrestrial network equipment is the network equipment of the evolved UMTS terrestrial radio access network (E-UTRAN TN). The system messages are used to provide new radio non-terrestrial communication (NR NTN) neighbor cell information. The NR NTN neighbor cell information is used by the terminal for cell reselection.

[0071] In the above embodiment, the terminal can receive system messages broadcast by the terrestrial network equipment to obtain NR NTN neighbor cell information. This NR NTN neighbor cell information can be used by the terminal for cell reselection, that is, the terminal can reselect from the E-UTRAN TN cell to the NR NTN neighbor cell, thereby achieving the purpose of reselection from the E-UTRAN TN to the NR NTN and improving the availability of NTN communication.

[0072] In conjunction with some embodiments of the second aspect, in some embodiments, the NR NTN neighbor cell information includes at least one of the following:

[0073] Satellite ephemeris information;

[0074] First time information, the first time information is used to indicate the valid time of the satellite ephemeris information;

[0075] Satellite frequency information;

[0076] NR NTN neighbor cell identifier;

[0077] Satellite identification;

[0078] Satellite dish information;

[0079] The second time information is used to indicate the time when the NR NTN neighboring cell starts service.

[0080] In conjunction with some embodiments of the second aspect, in some embodiments, the system message includes any one of the following:

[0081] The first system information block SIB is used to provide NR neighbor cell information;

[0082] The second SIB is used to provide satellite information of neighboring cells of IoT NTN (non-terrestrial communication)

[0083] The third SIB is used to provide NR NTN neighbor cell information.

[0084] In conjunction with some embodiments of the second aspect, in some embodiments, when the system message includes a first SIB, the first SIB includes any one of the following:

[0085] Satellite information associated with NR neighbor cells;

[0086] Frequency information of NR neighbor cells and satellite identification information associated with the frequency information of NR neighbor cells.

[0087] In conjunction with some embodiments of the second aspect, in some embodiments, when the system message includes a second SIB, the second SIB includes any one of the following:

[0088] NR NTN neighbor cell information;

[0089] IoT NTN neighboring cell information, which includes at least one of the following:

[0090] Satellite dish information;

[0091] Satellite frequency information.

[0092] In combination with some embodiments of the second aspect, in some embodiments, when the system message includes a third SIB, an update period of the third SIB is different from a system message update period.

[0093] In combination with some embodiments of the second aspect, in some embodiments, when the system message includes the third SIB, the system message label value is irrelevant to whether the third SIB is updated.

[0094] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0095] The label value of the system message broadcast by the terrestrial network device is different from the label value of the system message stored in the terminal, and it is determined that the third SIB is still valid.

[0096] In combination with some embodiments of the second aspect, in some embodiments, the system message includes a second SIB or a third SIB, and when the second SIB or the third SIB includes NR NTN satellite frequency information, the NR NTN satellite frequency information is associated with the frequency information of the NR neighbor cell included in the first SIB; or

[0097] The system message includes the second SIB or the third SIB, and when the second SIB or the third SIB includes NR NTN satellite identification information, the first SIB includes satellite identification information associated with the frequency information of the NR neighboring cell.

[0098] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0099] Based on the NR NTN neighbor cell information, measure the NR NTN neighbor cells.

[0100] In a third aspect, an embodiment of the present disclosure provides a terrestrial network device, where the terrestrial network device is a network device of an evolved UMTS terrestrial radio access network (E-UTRAN TN), including:

[0101] The transceiver module is configured to broadcast system messages. The system messages are used to provide new radio non-terrestrial communication NR NTN neighbor cell information. The NR NTN neighbor cell information is used by the terminal to perform cell reselection.

[0102] In a fourth aspect, an embodiment of the present disclosure provides a terminal, including:

[0103] The transceiver module is configured to receive system messages broadcast by terrestrial network equipment. The terrestrial network equipment is a network device of the evolved UMTS terrestrial radio access network terrestrial communication E-UTRAN TN. The system message is used to provide new air interface non-terrestrial communication NR NTN neighbor cell information, and the NR NTN neighbor cell information is used by the terminal to perform cell reselection.

[0104] In a fifth aspect, an embodiment of the present disclosure provides a ground network device, including:

[0105] one or more processors;

[0106] The processor is used to execute the method of information transmission behavior of any one of the first aspects.

[0107] In a sixth aspect, an embodiment of the present disclosure provides a terminal, including:

[0108] one or more processors;

[0109] The processor is used to execute any one of the information transmission methods of the second aspect.

[0110] In the seventh aspect, an embodiment of the present disclosure proposes a communication system, including a ground network device and a terminal, wherein the ground network device is configured to implement any information transmission method of the first aspect, and the terminal is configured to implement any information transmission method of the second aspect.

[0111] In an eighth aspect, an embodiment of the present disclosure proposes a storage medium storing instructions. When the instructions are executed on a communication device, the communication device executes an information transmission method as described in any one of the first aspect or the second aspect.

[0112] In a ninth aspect, an embodiment of the present disclosure proposes a computer program product, comprising a computer program, which, when executed by a processor, is used to implement the information transmission method described in any one of the first aspect or the second aspect.

[0113] It is understandable that the above-mentioned terminals, ground network equipment, communication systems, storage media, and computer programs are all used to execute the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0114] The present disclosure provides an information transmission method, apparatus, and storage medium. In some embodiments, the terms "information transmission method," "information processing method," and "communication method" are interchangeable; the terms "information transmission apparatus," "information processing apparatus," and "communication apparatus" are interchangeable; and the terms "information processing system," "communication system," and "communication system" are interchangeable.

[0115] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0116] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0117] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0118] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when articles such as "a", "an", "the" in English are used in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0119] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0120] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0121] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0122] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0123] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0124] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0125] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0126] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "entity", "subject", etc.

[0127] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0128] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0129] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.

[0130] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0131] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0132] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0133] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0134] As shown in FIG1 , a communication system 100 includes a terminal 101 and a ground network device 102 .

[0135] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0136] In some embodiments, the ground network device 102 is relative to the non-ground network device, and may include an access network device 102-1, for example, a node or device that accesses the terminal to the wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0137] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0138] In some embodiments, the access network device 102-1 can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0139] In some embodiments, the ground network device 102 includes a core network device 102-2. The core network device 102-2 can be a single device, multiple devices, or a group of devices. The network element can be virtual or physical. The core network includes, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC). In the embodiments of the present disclosure, the core network device 102-2 may include, but is not limited to, a Location Management Function (LMF).

[0140] Terminal 101 can access core network device 102-2 through access network device 102-1.

[0141] In some embodiments, the communication system 100 may further include a satellite and network equipment deployed on the satellite (not shown in FIG1 ). The network equipment deployed on the satellite may be referred to as non-terrestrial network equipment, which may include access network equipment and some network elements of the core network, and this disclosure is not limited to this.

[0142] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0143] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0144] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, systems utilizing other communication methods, and next-generation systems based on these. Furthermore, a combination of multiple systems (for example, a combination of LTE or LTE-A with 5G) may also be used.

[0145] The 3rd Generation Partnership Project (3GPP) has standardized the technologies of Internet of Things (IoT) NTN and New Radio (NR) NTN. Subsequently, in terms of mobility, the terminal will be considered to move between the Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN) terrestrial network (TN) and NR NTN.

[0146] Among them, the E-UTRAN TN needs to provide NR NTN satellite information (from the terminal's perspective, NR NTN is the terminal's neighboring cell), that is, the E-UTRAN TN needs to provide NR NTN satellite information of the neighboring cell, such as satellite ephemeris information. The terminal can measure the NR NTN neighboring cell based on the NR NTN satellite information, which is beneficial for the terminal to perform cell reselection. For example, the terminal can reselect from the EUTRAN TN cell to the NR NTN neighboring cell.

[0147] The E-UTRAN TN can provide NR frequency and NR neighbor cell information through System Information Block 24 (SIB24) for the terminal to perform inter-Radio Access Technology (inter-RAT) cell reselection.

[0148] IoT NTN can provide satellite information of neighboring cells (IoT NTN) through SIB33. NR NTN can provide satellite information of neighboring cells (NR NTN) through SIB19. NR TN can also send SIB19 to provide satellite information of neighboring cells (NR NTN).

[0149] In some embodiments, idle terminal mobility can be supported, including reselection from E-UTRAN TN to NR NTN. Therefore, the present disclosure provides the following information transmission method, device, and storage medium, which enable the ground network equipment of E-UTRAN TN to provide NR NTN neighbor cell information through system messages for the purpose of terminal cell reselection, thereby improving the availability of NTN communication.

[0150] FIG2 is an interactive diagram of an information transmission method according to an embodiment of the present disclosure. As shown in FIG2 , the present disclosure embodiment relates to an information transmission method, which includes:

[0151] Step S2101: the ground network device 102 broadcasts a system message.

[0152] In some embodiments, the ground network device 102 is a network device of E-UTRAN TN.

[0153] In some embodiments, the system message may be used to provide NR NTN neighbor cell information, wherein the NR NTN neighbor cell information may be used by the terminal 101 for cell reselection.

[0154] In some embodiments, the terminal 101 receives the system message in an E-UTRAN TN cell.

[0155] In some embodiments, the NR NTN neighbor cell information may include but is not limited to at least one of the following:

[0156] Satellite ephemeris information;

[0157] First time information, the first time information is used to indicate the valid time of the satellite ephemeris information;

[0158] Satellite frequency information;

[0159] NR NTN neighbor cell identifier;

[0160] Satellite identification;

[0161] Satellite dish information;

[0162] The second time information is used to indicate the time when the NR NTN neighboring cell starts service.

[0163] In one example, satellite ephemeris information can be used to describe the operating status, orbit information, etc. of a satellite or a flying object. Any parameter that can describe satellite orbit information, operating status, etc. can be used as satellite ephemeris information, and this disclosure does not limit this.

[0164] In one example, the first time information may be used to indicate the validity period of the satellite ephemeris information. For example, the first time information may include, but is not limited to, at least one of an epoch time and a validity duration. The epoch time indicates the starting time when the satellite ephemeris information becomes effective. The validity duration indicates the validity period of the satellite ephemeris information.

[0165] In one example, the satellite frequency information may be used to indicate an operating frequency band of the satellite.

[0166] In one example, the satellite frequency information indicates the frequency of the NR NTN network deployed on the satellite.

[0167] In one example, the satellite frequency information indicates the frequency of a NR NTN cell, where the NR NTN cell is deployed on a satellite.

[0168] In one example, the NR NTN neighbor cell identifier may be used to identify the NR NTN neighbor cell provided by the satellite.

[0169] In one example, a satellite identification may be used to identify the satellite.

[0170] In one example, the satellite antenna information may include but is not limited to polarization information of the satellite uplink and downlink antennas.

[0171] In one example, the second time information can be used to indicate the time when the NR NTN neighboring cell starts serving a certain geographical area. Of course, the second time information can also be used to indicate the time when the NR NTN neighboring cell starts serving a certain geographical area and the time when the NR NTN neighboring cell ends serving a certain geographical area, which is not limited in this disclosure.

[0172] In one example, the second time information can be used to indicate the time when the satellite starts serving a certain geographical area. For example, if a satellite deploys multiple cells, the time when the satellite starts serving the certain geographical area indicates the time when the multiple deployed cells start serving.

[0173] The above is only an exemplary description, and the present disclosure does not limit the content of NR NTN neighbor cell information.

[0174] In some embodiments, the system message may be SIBn, where n may be a positive integer.

[0175] In some embodiments, the system message may be a first SIB, and the first SIB may be used to provide NR neighbor cell information. Exemplarily, the first SIB may be SIB24.

[0176] In one example, the first SIB includes NR frequency and NR neighbor cell information.

[0177] In one example, in order for the first SIB to provide NR NTN neighbor cell information, a new information element (IE) may be added to the first SIB. The newly added IE may be used to provide satellite information associated with the NR neighbor cell, for example, providing a satellite information list of the NR NTN neighbor cell in SIB24.

[0178] The satellite information associated with the NR neighbor cell may include, but is not limited to, at least one of the following: satellite ephemeris information; first time information; satellite frequency information; satellite identifier; satellite antenna information; and second time information. The specific information content has been introduced in the previous embodiment and will not be repeated here.

[0179] For example, the "association" in the satellite information associated with the NR neighbor cell can be understood as one or more NR NTN neighbor cells deployed on different frequencies, as well as the satellite information corresponding to each NR NTN neighbor cell.

[0180] In one example, in order to allow the first SIB to provide NR NTN neighbor cell information, the existing IE in the first SIB can be enhanced, for example, the IE providing the frequency information of the NR neighbor cell is enhanced, and satellite identification information associated with the frequency information of the NR neighbor cell is added to the IE, for example, a list of satellite identifications associated with the frequency information of the NR neighbor cell is added, so that the terminal 101 can obtain the satellite information of the NR NTN neighbor cell in SIB33 according to the satellite identification associated with the frequency information of the NR neighbor cell.

[0181] It should be noted that the premise for the terminal 101 to obtain the satellite information of the NR NTN neighboring cell in SIB33 based on the satellite identifier associated with the frequency information is that SIB33 includes the satellite information of the NR NTN neighboring cell. Since SIB33 currently includes the satellite information of the neighboring cell (IoT NTN), SIB33 can be enhanced to provide the satellite information of the NR NTN neighboring cell. The solution for SIB33 to provide the satellite information of the NR NTN neighboring cell will be described in subsequent embodiments and will not be described here.

[0182] For example, the "association" in the satellite identification information associated with the frequency information of the NR neighbor cell can be understood as one or more NR NTN neighbor cells deployed on the frequency, as well as a list of satellite identifications corresponding to the NR NTN neighbor cells.

[0183] In some embodiments, the system message may be a second SIB, and the second SIB may be used to provide satellite information of IoT NTN neighboring cells. Exemplarily, the second SIB may be SIB33.

[0184] In one example, the second SIB includes satellite information for IoT NTN neighboring cells. This satellite information may include, but is not limited to, at least one of the following: satellite ephemeris information; first time information; satellite frequency information; satellite identifier; satellite antenna information; and second time information. The specific information content has been described in the previous embodiment and will not be repeated here.

[0185] In one example, in order for the second SIB to provide NR NTN neighbor cell information, a new IE may be added to the second SIB, and the newly added IE may be used to provide NR NTN neighbor cell information.

[0186] For example, a new IE may be added to the second SIB, which may be NeighSatelliteInfo-r19. The newly added IE may only include NR NTN neighbor cell information, such as NR NTN neighbor cell identifier, NR NTN neighbor cell frequency, etc.

[0187] In one example, in order to allow the second SIB to provide NR NTN neighbor cell information, the existing IE in the second SIB can be enhanced. For example, the IE (NeighSatelliteInfo-r18) providing IoT NTN neighbor cell information is enhanced, and satellite-related information such as satellite antenna information and satellite frequency information is added to the IE.

[0188] In some embodiments, the system message may be a third SIB, the third SIB may be a newly added SIB, and the third SIB may be used to provide NR NTN neighbor cell information.

[0189] In one example, when a system message includes a third SIB, the update period of the third SIB may be different from the system message update period. That is, the update period of the third SIB is not limited to the system message update period, i.e., the third SIB is not limited to being updated only during the system message update period. For example, the third SIB may be updated based on satellite ephemeris information.

[0190] In one example, when the system message includes a third SIB, the update period of the third SIB may be the same as the system message update period. In other words, the update period of the third SIB may be the same as the update period of the existing SIB, i.e., both are subject to the system message update period, and the third SIB can only be updated during the system message update period.

[0191] In one example, the present disclosure does not limit whether the update period of the third SIB is different from the system message update period.

[0192] In one example, when the system message includes the third SIB, the tag value of the system message has nothing to do with whether the third SIB is updated.

[0193] Currently, when the label value of a system message is updated, terminal 101 should update the system message. However, in the disclosed embodiment, the label value of the system message broadcast by ground network device 102 is different from the label value of the system message stored in terminal 101. That is, even if the label value of the system message is updated, terminal 101 can still consider the third SIB valid and does not need to update the third SIB.

[0194] In some embodiments, the system message includes a second SIB (SIB33) or a third SIB (newly added SIB), and when the second SIB (SIB33) or the third SIB (newly added SIB) includes NR NTN satellite frequency information, the NR NTN satellite frequency information can be associated with the frequency information of the NR neighboring cell included in the first SIB (SIB24).

[0195] The terminal 101 can reselect to the NR NTN cell based on the cell reselection parameters of the first SIB for reselecting to the NR cell and the satellite information of the separate NR NTN neighbor cell deployed on the frequency.

[0196] In some embodiments, the system message includes a second SIB (SIB33) or a third SIB (newly added SIB), and when the second SIB (SIB33) or the third SIB (newly added SIB) includes NR NTN satellite identification information, the first SIB (SIB24) includes satellite identification information associated with the frequency information of the NR neighboring cell.

[0197] The terminal 101 can obtain the satellite information of the NR NTN neighboring cell in the third SIB according to the satellite identifier associated with the frequency information of the NR neighboring cell, so as to reselect the NR NTN cell.

[0198] The above is only an exemplary description. All schemes in which terrestrial network equipment broadcasts system messages to provide NR NTN neighbor cell information should fall within the scope of protection of this disclosure.

[0199] In step S2102, the terminal 101 measures the NR NTN neighboring cells based on the NR NTN neighboring cell information.

[0200] In some embodiments, the terminal 101 may obtain a first SIB from the ground network device 102. The first SIB may be used to provide NR neighbor cell information. For example, the first SIB may be SIB24. The terminal 101 may obtain NR NTN neighbor cell information from the enhanced SIB24.

[0201] In one example, in order for the first SIB to provide NR NTN neighbor cell information, a new IE can be added to the first SIB. The newly added IE can be used to provide satellite information associated with NR neighbor cells, for example, providing a satellite information list of NR NTN neighbor cells in SIB24.

[0202] In some embodiments, the terminal 101 may obtain a first SIB and a second SIB from the ground network device 102. The first SIB may be used to provide NR neighbor cell information. For example, the first SIB may be SIB24. The second SIB includes satellite information of IoT NTN neighbor cells. For example, the second SIB may be SIB33.

[0203] In one example, in order to allow the first SIB to provide NR NTN neighbor cell information, the existing IE in the first SIB can be enhanced. For example, when the second SIB includes NR NTN satellite frequency information, the NR NTN satellite frequency information can be associated with the NR neighbor cell frequency information included in the first SIB (SIB24).

[0204] Terminal 101 can reselect to the NR NTN cell based on the cell reselection parameters for reselecting to the NR cell in the first SIB and the satellite information of the NR NTN neighbor cell in the second SIB.

[0205] In one example, when the second SIB includes NR NTN satellite identification information, the first SIB (SIB24) includes satellite identification information associated with the frequency information of the NR neighboring cell.

[0206] The terminal 101 can obtain the satellite information corresponding to the satellite identifier of the NR NTN neighboring cell in the second SIB according to the satellite identifier associated with the frequency information of the NR neighboring cell, so as to reselect the NR NTN cell.

[0207] In some embodiments, the terminal 101 can obtain a third SIB from the ground network device 102, and the third SIB directly provides NR NTN neighbor cell information.

[0208] For example, the third SIB (in addition to providing NR NTN neighbor cell information) may also include some parameters for UE cell reselection.

[0209] In some embodiments, the terminal 101 may obtain the first SIB and the third SIB from the ground network device 102 to determine the NR NTN neighbor cell information.

[0210] In one example, when the third SIB (newly added SIB) includes NR NTN satellite frequency information, the NR NTN satellite frequency information can be associated with the frequency information of the NR neighboring cell included in the first SIB (SIB24).

[0211] The terminal 101 can reselect to the NR NTN cell based on the cell reselection parameters of the first SIB for reselecting to the NR cell and the satellite information of the separate NR NTN neighbor cell deployed on the frequency.

[0212] In one example, when the third SIB (newly added SIB) includes NR NTN satellite identification information, the first SIB (SIB24) includes satellite identification information associated with the frequency information of the NR neighboring cell.

[0213] The terminal 101 can obtain the satellite information of the NR NTN neighboring cell in the third SIB according to the satellite identifier associated with the frequency information of the NR neighboring cell, so as to reselect the NR NTN cell.

[0214] For example, the third SIB (in addition to providing NR NTN neighbor cell information) may also include some parameters for UE cell reselection.

[0215] The above is only an exemplary description, and all schemes in which the terminal 101 determines the NR NTN neighbor cell information based on the system message should fall within the scope of protection of this disclosure.

[0216] In some embodiments, the terminal 101 may perform measurements on the NR NTN neighbor cells based on the NR NTN neighbor cell information provided in the system message to support the terminal 101 to reselect from the E-UTRAN TN cell to the NR NTN cell.

[0217] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0218] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0219] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0220] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "some", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "some A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, some A, any A, or first A, etc., but not limited to this.

[0221] In some embodiments, the information transmission method involved in the embodiments of the present disclosure may include at least one of steps S2101 and S2102. For example, step S2101 may be implemented as an independent embodiment, step S2102 may be implemented as an independent embodiment, and steps S2101+S2102 may be implemented as independent embodiments, but are not limited thereto.

[0222] In some embodiments, step S2101 is optional, and one or more of these steps may be omitted or replaced in different embodiments. For example, when the terminal 101 obtains system information from other execution entities, step S2101 may not be performed.

[0223] In some embodiments, step S2102 is optional, and one or more of these steps may be omitted or replaced in different embodiments. For example, if the neighboring cell measurement condition is not met, step S2102 may not be performed.

[0224] In some embodiments, steps S2101 to S2102 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0225] In the above embodiment, the network equipment of the E-UTRAN TN can broadcast system messages to provide NR NTN neighbor cell information. The NR NTN neighbor cell information can be used by the terminal to perform cell reselection, that is, it can reselect from the E-UTRAN TN cell to the NR NTN neighbor cell, thereby achieving the purpose of reselecting from the terrestrial network cell to the non-terrestrial cell, and improving the availability of NTN communication.

[0226] FIG3A is an interactive diagram illustrating an information transmission method according to an embodiment of the present disclosure. As shown in FIG3A , the present disclosure embodiment relates to an information transmission method, which can be executed by a ground network device 102, which can be an E-UTRAN TN network device. The method includes:

[0227] Step S3101, broadcast system messages.

[0228] In some embodiments, the system message may be used to provide NR NTN neighbor cell information, wherein the NR NTN neighbor cell information may be used by the terminal 101 for cell reselection.

[0229] In some embodiments, terminal 101 may receive the system message.

[0230] In some embodiments, the optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2 and other related parts of the embodiment involved in Figure 2, which will not be repeated here.

[0231] The communication method involved in the embodiment of the present disclosure may include step S3101.

[0232] In some embodiments, step S3101 is optional, and one or more of these steps may be omitted or replaced in different embodiments. For example, when the terminal 101 obtains system information from other execution entities, step S3101 may not be performed.

[0233] In the above embodiment, the network equipment of the E-UTRAN TN can broadcast system messages to provide NR NTN neighbor cell information. The NR NTN neighbor cell information can be used by the terminal to perform cell reselection, that is, it can reselect from the E-UTRAN TN cell to the NR NTN neighbor cell, thereby achieving the purpose of reselecting from the E-UTRAN TN to the NR NTN and improving the availability of NTN communication.

[0234] FIG3B is an interactive diagram of an information transmission method according to an embodiment of the present disclosure. As shown in FIG3B , the present disclosure embodiment relates to an information transmission method, which can be executed by terminal 101, and the method includes:

[0235] Step S3201, obtain system messages.

[0236] In some embodiments, the system message may be used to provide NR NTN neighbor cell information, wherein the NR NTN neighbor cell information may be used by the terminal 101 for cell reselection.

[0237] In some embodiments, the terminal 101 may obtain the system message from the ground network device 102, but is not limited thereto. The terminal 101 may also receive system messages sent by other entities.

[0238] In some embodiments, the terminal 101 may obtain a first SIB from the ground network device 102. The first SIB may be used to provide NR neighbor cell information. For example, the first SIB may be SIB24. The terminal 101 may obtain NR NTN neighbor cell information from the enhanced SIB24.

[0239] In one example, in order for the first SIB to provide NR NTN neighbor cell information, a new information element (IE) may be added to the first SIB. The newly added IE may be used to provide satellite information associated with the NR neighbor cell, for example, providing a satellite information list of the NR NTN neighbor cell in SIB24.

[0240] In some embodiments, the terminal 101 may obtain a first SIB and a second SIB from the ground network device 102. The first SIB may be used to provide NR neighbor cell information. For example, the first SIB may be SIB24. The second SIB includes satellite information of IoT NTN neighbor cells. The second SIB may be SIB33.

[0241] In one example, in order to allow the first SIB to provide NR NTN neighbor cell information, the existing IE in the first SIB can be enhanced. For example, when the second SIB includes NR NTN satellite frequency information, the NR NTN satellite frequency information can be associated with the NR neighbor cell frequency information included in the first SIB (SIB24).

[0242] Terminal 101 can reselect to the NR NTN cell based on the cell reselection parameters for reselecting to the NR cell in the first SIB and the satellite information of the NR NTN neighbor cell in the second SIB.

[0243] In one example, when the second SIB includes NR NTN satellite identification information, the first SIB (SIB24) includes satellite identification information associated with the frequency information of the NR neighboring cell.

[0244] The terminal 101 can obtain the satellite information corresponding to the satellite identifier of the NR NTN neighboring cell in the second SIB according to the satellite identifier associated with the frequency information of the NR neighboring cell, so as to reselect the NR NTN cell.

[0245] In some embodiments, the terminal 101 can obtain a third SIB from the ground network device 102, and the third SIB directly provides NR NTN neighbor cell information.

[0246] For example, the third SIB (in addition to providing NR NTN neighbor cell information) may also include some parameters for UE cell reselection.

[0247] In some embodiments, the terminal 101 may obtain the first SIB and the third SIB from the ground network device 102 to determine the NR NTN neighbor cell information.

[0248] In one example, when the third SIB (newly added SIB) includes NR NTN satellite frequency information, the NR NTN satellite frequency information can be associated with the frequency information of the NR neighboring cell included in the first SIB (SIB24).

[0249] The terminal 101 can reselect to the NR NTN cell based on the cell reselection parameters of the first SIB for reselecting to the NR cell and the satellite information of the separate NR NTN neighbor cell deployed on the frequency.

[0250] In one example, when the third SIB (newly added SIB) includes NR NTN satellite identification information, the first SIB (SIB24) includes satellite identification information associated with the frequency information of the NR neighboring cell.

[0251] The terminal 101 can obtain the satellite information of the NR NTN neighboring cell in the third SIB according to the satellite identifier associated with the frequency information of the NR neighboring cell, so as to reselect the NR NTN cell.

[0252] For example, the third SIB (in addition to providing NR NTN neighbor cell information) may also include some parameters for UE cell reselection.

[0253] The above is only an exemplary description, and all schemes in which the terminal 101 determines the NR NTN neighbor cell information based on the system message should fall within the scope of protection of this disclosure.

[0254] In some embodiments, the terminal 101 obtains a system message determined according to a predefined rule.

[0255] In some embodiments, the terminal 101 performs processing to obtain the system message.

[0256] In some embodiments, step S3201 is omitted, the terminal 101 independently implements the function indicated by the system message, or the terminal 101 obtains the system message from other network nodes, or the above function is default or acquiescent.

[0257] In some embodiments, the optional implementation of step S3201 can refer to the optional implementation of step S2101 in Figure 2 and other related parts of the embodiment involved in Figure 2, which will not be repeated here.

[0258] Step S3202: Measure the NR NTN neighboring cell.

[0259] In some embodiments, terminal 101 performs cell reselection based on the measurements.

[0260] In some embodiments, the optional implementation of step S3202 can refer to the optional implementation of step S2102 in Figure 2 and other related parts of the embodiment involved in Figure 2, which will not be repeated here.

[0261] In some embodiments, the information transmission method involved in the embodiments of the present disclosure may include at least one of steps S3201 and S3202. For example, step S3201 may be implemented as an independent embodiment, step S3202 may be implemented as an independent embodiment, and steps S3201+S3202 may be implemented as independent embodiments, but are not limited thereto.

[0262] In some embodiments, step S3201 is optional, and one or more of these steps may be omitted or replaced in different embodiments. For example, when the terminal 101 obtains system information from other execution entities, step S3201 may not be performed.

[0263] In some embodiments, step S3202 is optional, and one or more of these steps may be omitted or replaced in different embodiments. For example, if the neighboring cell measurement condition is not met, step S3202 may not be performed.

[0264] In some embodiments, steps S3201 to S3202 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0265] In the above embodiment, the terminal can perform NR NTN neighbor cell measurement based on the system message broadcast by the ground network equipment, so that it can reselect from the E-UTRAN TN cell to the NR NTN cell, thereby achieving the purpose of reselecting from the E-UTRAN TN to the NR NTN and improving the availability of NTN communication.

[0266] The above method is further illustrated below with examples.

[0267] In the embodiment of the present disclosure, the E-UTRAN TN provides satellite information of the NR NTN, including any of the following:

[0268] 1. Enhance SIB24 to provide NR NTN satellite information in SIB24;

[0269] 2. Enhance SIB33 and provide NR NTN satellite information in SIB33;

[0270] 3. Introduce a new SIB. The content of the new SIB refers to the satellite information of the neighboring cells in SIB19;

[0271] (1) If a new SIB is introduced, the update of the new SIB is not restricted by the system message update cycle, and the value tag does not change;

[0272] (2) If a new SIB or enhanced SIB33 is introduced, the NR frequency in SIB24 is associated with the satellite information in the new SIB or SIB33.

[0273] Some embodiments of the present disclosure include the following embodiments and their combinations:

[0274] 1. E-UTRAN TN provides NR NTN neighbor cell information through system messages. NR NTN neighbor cell information is used by the terminal for cell reselection.

[0275] 2. The NR NTN neighbor cell information includes at least one of the following:

[0276] Satellite ephemeris information;

[0277] Valid time information of satellite ephemeris information, such as epoch time and validity duration;

[0278] Satellite frequency information;

[0279] NR NTN neighbor cell identifier (Identifier, ID)

[0280] Satellite ID;

[0281] Satellite antenna information, such as uplink antenna polarization information and / or downlink antenna polarization information;

[0282] Time information when the neighboring cell starts service.

[0283] 3. Based on the above, E-UTRAN TN provides NR NTN neighbor cell information through system messages, including providing NR NTN neighbor cell information through SIB24.

[0284] For example, a satellite information list of a neighboring cell may be provided in SIB24.

[0285] 4. Add satellite ID information to SIB24, for example, add a satellite ID list to the frequency information. The terminal can obtain the satellite information of the neighboring cells of the NR NTN in SIB33 based on the satellite ID associated with the frequency information.

[0286] 5. Based on the above, E-UTRAN TN provides NR NTN neighbor cell information through system messages, including providing NR NTN neighbor cell information through SIB33.

[0287] 6. Add NR NTN neighbor cell information in SIB33, such as NeighSatelliteInfo-r19.

[0288] 7. Among them, at least one of the following items is added to the neighboring cell information in SIB33:

[0289] Satellite dish information;

[0290] Satellite frequency information.

[0291] 8. Based on the above, E-UTRAN TN provides NR NTN neighbor cell information through system messages, including defining a new SIB to provide NR NTN neighbor cell information.

[0292] 9. Among them, the new SIB update is not restricted by the system message update cycle.

[0293] 10. Among them, the new SIB update may not change the value tag.

[0294] 11. Among them, when the value tag broadcast by the ground network device is different from the value tag saved by the terminal, the terminal should not consider the new SIB to be invalid.

[0295] 12. Based on the above, the frequency information of SIB24 can be associated with the NR NTN neighboring cell satellite information.

[0296] For example, through frequency information association, the terminal can determine the NR NTN neighboring cell satellite information existing on the frequency based on the frequency information.

[0297] For another example, satellite ID information can be added to SIB24, such as adding a satellite ID list to the frequency information. The terminal can obtain the satellite information of the neighboring cell of NR NTN in SIB33 according to the satellite ID associated with the frequency information.

[0298] 13. Based on the above, the terminal can measure the neighboring cells according to the NR NTN neighboring cell information provided by EUTRAN TN.

[0299] The present disclosure also provides an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing each step performed by a terrestrial network device (e.g., an E-UTRAN TN network device) in any of the above methods. For another example, another apparatus is provided that includes units or modules for implementing each step performed by a terminal in any of the above methods.

[0300] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0301] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0302] FIG4A is a schematic diagram of the structure of a ground network device according to an embodiment of the present disclosure. As shown in FIG4A , the ground network device 4100 may include a transceiver module 4101 .

[0303] In some embodiments, the above-mentioned transceiver module 4101 is configured to broadcast system messages, which are used to provide new radio non-terrestrial communication NR NTN neighbor cell information, and the NR NTN neighbor cell information is used by the terminal to perform cell reselection.

[0304] Optionally, the above-mentioned transceiver module 4101 is used to execute at least one of the communication steps such as sending and / or receiving (for example, step S2101, but not limited to this) performed by the ground network equipment 4100 in any of the above methods, which will not be repeated here.

[0305] FIG4B is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure. As shown in FIG4B , a terminal 4200 may include: a transceiver module 4201 .

[0306] In some embodiments, the above-mentioned transceiver module 4201 is configured to receive system messages broadcast by terrestrial network equipment, which is a network equipment of the evolved UMTS terrestrial radio access network terrestrial communication E-UTRAN TN. The system message is used to provide new air interface non-terrestrial communication NR NTN neighbor cell information, and the NR NTN neighbor cell information is used for the terminal to perform cell reselection.

[0307] Optionally, the above-mentioned transceiver module 4201 is used to execute at least one of the communication steps such as sending and / or receiving that can be executed by the terminal 4200 in any of the above methods (such as step S2101, but not limited to this), which will not be repeated here.

[0308] Optionally, the above-mentioned terminal 4200 may also include a processing module 4202 (not shown in Figure 4B), which is used to execute at least one of the other steps (such as step S2102, but not limited to this) that the terminal 4200 can execute in any of the above methods, which will not be repeated here.

[0309] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0310] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0311] Figure 5A is a schematic diagram of the structure of a communication device 5100 proposed in an embodiment of the present disclosure. Communication device 5100 can be a terrestrial network device (e.g., an E-UTRAN TN network device), or a chip, chip system, or processor that supports a network device implementing any of the above methods. It can also be a chip, chip system, or processor that supports a terminal implementing any of the above methods. Communication device 5100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0312] As shown in Figure 5A, the communication device 5100 includes one or more processors 5101. The processor 5101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The communication device 5100 is used to perform any of the above methods.

[0313] In some embodiments, the communication device 5100 further includes one or more memories 5102 for storing instructions. Optionally, all or part of the memories 5102 may be located outside the communication device 5100.

[0314] In some embodiments, the communication device 5100 further includes one or more transceivers 5103. When the communication device 5100 includes one or more transceivers 5103, the transceiver 5103 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., step S2101), and the processor 5101 performs at least one of the other steps (e.g., step S2102, but not limited thereto).

[0315] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0316] In some embodiments, the communication device 5100 may include one or more interface circuits 5104. Optionally, the interface circuit 5104 is connected to the memory 5102. The interface circuit 5104 may be configured to receive signals from the memory 5102 or other devices, and may be configured to send signals to the memory 5102 or other devices. For example, the interface circuit 5104 may read instructions stored in the memory 5102 and send the instructions to the processor 5101.

[0317] The communication device 5100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 5100 described in the present disclosure is not limited thereto, and the structure of the communication device 5100 may not be limited by FIG. 5A . The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0318] 5B is a schematic diagram of the structure of a chip 5200 according to an embodiment of the present disclosure. If the communication device 5200 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 5200 shown in FIG5B , but the present disclosure is not limited thereto.

[0319] The chip 5200 includes one or more processors 5201 , and the chip 5200 is configured to execute any of the above methods.

[0320] In some embodiments, the chip 5200 further includes one or more interface circuits 5202. Optionally, the interface circuit 5202 is connected to the memory 5203. The interface circuit 5202 can be used to receive signals from the memory 5203 or other devices, and can be used to send signals to the memory 5203 or other devices. For example, the interface circuit 5202 can read instructions stored in the memory 5203 and send the instructions to the processor 5201.

[0321] In some embodiments, the interface circuit 5202 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step S2101, but not limited to this), and the processor 5201 performs at least one of the other steps (for example, step S2102, but not limited to this).

[0322] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0323] In some embodiments, the chip 5200 further includes one or more memories 5203 for storing instructions. Alternatively, all or part of the memories 5203 may be located outside the chip 5200.

[0324] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 5100, causes the communication device 5100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a transient storage medium.

[0325] The present disclosure also provides a program product, which, when executed by the communication device 5100, enables the communication device 5100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0326] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

[0327] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0328] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An information transmission method, characterized in that, The method is executed by a terrestrial network device, which is a network device of an evolved UMTS terrestrial radio access network terrestrial communication E-UTRAN TN, and includes: Broadcasting system messages, where the system messages are used to provide new radio non-terrestrial communication NR NTN neighbor cell information, and the NR NTN neighbor cell information is used for a terminal to perform cell reselection.

2. The method according to claim 1, characterized in that, The NR NTN neighbor cell information includes at least one of the following: Satellite ephemeris information; First time information, which is used to indicate the valid time of the satellite ephemeris information; Satellite frequency information; NR NTN neighbor cell identifier; Satellite identifier; Satellite antenna information; Second time information, which is used to indicate the time when the NR NTN neighbor cell starts to provide services.

3. The method according to claim 1 or 2, characterized in that, The system messages include at least one of the following: The first system information block SIB, where the first SIB is used to provide NR neighbor cell information; The second SIB, where the second SIB is used to provide satellite information of Internet of Things non-terrestrial communication IoT NTN neighbor cells; The third SIB, where the third SIB is used to provide the NR NTN neighbor cell information.

4. The method according to claim 3, wherein When the system messages include the first SIB, the first SIB includes any one of the following: Satellite information associated with the NR neighbor cell; The frequency information of the NR neighbor cell and the satellite identifier information associated with the frequency information of the NR neighbor cell.

5. The method according to claim 3, characterized in that, When the system messages include the second SIB, the second SIB includes any one of the following: The NR NTN neighbor cell information; IoT NTN neighbor cell information, where the IoT NTN neighbor cell information includes at least one of the following: Satellite antenna information; Satellite frequency information.

6. The method according to claim 3, characterized in that When the system messages include the third SIB, the update period of the third SIB is different from the system message update period.

7. The method according to claim 3 or 6, characterized in that, When the system messages include the third SIB, the tag value of the system messages has nothing to do with whether the third SIB is updated.

8. The method according to any one of claims 3 or 6 - 7, characterized in that When the system messages include the second SIB or the third SIB, and the second SIB or the third SIB includes NR NTN satellite frequency information, the NR NTN satellite frequency information is associated with the frequency information of the NR neighbor cell included in the first SIB; or When the system messages include the second SIB or the third SIB, and the second SIB or the third SIB includes NR NTN satellite identifier information, the first SIB includes satellite identifier information associated with the frequency information of the NR neighbor cell.

9. An information transmission method, characterized in that, The method is executed by a terminal, and includes: Receiving system messages broadcast by a terrestrial network device, where the terrestrial network device is a network device of an evolved UMTS terrestrial radio access network terrestrial communication E-UTRAN TN, the system messages are used to provide new radio non-terrestrial communication NR NTN neighbor cell information, and the NR NTN neighbor cell information is used for the terminal to perform cell reselection.

10. The method according to claim 9, wherein The NR NTN neighbor cell information includes at least one of the following: Satellite ephemeris information; First time information, which is used to indicate the valid time of the satellite ephemeris information; Satellite frequency information; NR NTN neighbor cell identifier; Satellite identifier; Satellite antenna information; Second time information, which is used to indicate the time when the NR NTN neighbor cell starts to provide services.

11. The method according to claim 9 or 10, characterized in that, The system message includes at least one of the following: The first system information block SIB, which is used to provide NR neighbor cell information; The second SIB, which is used to provide satellite information of the Internet of Things non-terrestrial communication IoT NTN neighbor cell; The third SIB, which is used to provide the NR NTN neighbor cell information.

12. The method according to claim 11, wherein When the system message includes the first SIB, the first SIB includes any one of the following: Satellite information associated with the NR neighbor cell; The frequency information of the NR neighbor cell and the satellite identifier information associated with the frequency information of the NR neighbor cell.

13. The method according to claim 11, characterized in that, When the system message includes the second SIB, the second SIB includes any one of the following: The NR NTN neighbor cell information; IoT NTN neighbor cell information, which includes at least one of the following: Satellite antenna information; Satellite frequency information.

14. The method according to claim 11, wherein When the system message includes the third SIB, the update period of the third SIB is different from the system message update period.

15. The method according to claim 11 or 14, characterized in that, When the system message includes the third SIB, the system message tag value has nothing to do with whether the third SIB is updated.

16. The method according to claim 15, wherein The method further includes: When the tag value of the system message broadcast by the terrestrial network device is different from the tag value of the system message saved on the terminal, it is determined that the third SIB is still valid.

17. The method according to any one of claims 11 or 14 - 16, characterized in that When the system message includes the second SIB or the third SIB, and the NR NTN satellite frequency information is included in the second SIB or the third SIB, the NR NTN satellite frequency information is associated with the frequency information of the NR neighbor cell included in the first SIB; or When the system message includes the second SIB or the third SIB, and the NR NTN satellite identifier information is included in the second SIB or the third SIB, the satellite identifier information associated with the frequency information of the NR neighbor cell is included in the first SIB.

18. The method according to any one of claims 9 - 17, characterized in that, The method further includes: Measuring the NR NTN neighbor cell based on the NR NTN neighbor cell information.

19. A ground network device, characterized in that, The terrestrial network device is a network device of the evolved UMTS terrestrial radio access network terrestrial communication E-UTRAN TN, including: A transceiver module, configured to broadcast a system message, which is used to provide new radio non-terrestrial communication NR NTN neighbor cell information, and the NR NTN neighbor cell information is used for the terminal to perform cell reselection.

20. A terminal, characterized in that, Including: A transceiver module, configured to receive a system message broadcast by a terrestrial network device, the terrestrial network device is a network device of the evolved UMTS terrestrial radio access network terrestrial communication E-UTRAN TN, the system message is used to provide new radio non-terrestrial communication NR NTN neighbor cell information, and the NR NTN neighbor cell information is used for the terminal to perform cell reselection.

21. A ground network device, characterized in that, Including: One or more processors; Wherein, the processor is configured to execute the method for the information transmission behavior described in any one of claims 1-8.

22. A terminal, characterized in that, Comprising: One or more processors; Wherein, the processor is configured to execute the information transmission method described in any one of claims 9-18.

23. A communication system, characterized in that, Comprising a terrestrial network device and a terminal, wherein the terrestrial network device is configured to implement the information transmission method described in any one of claims 1-8, and the terminal is configured to implement the information transmission method described in any one of claims 9-18.

24. A storage medium storing instructions, characterized in that, When the instruction runs on the communication device, the communication device is caused to execute the information transmission method described in any one of claims 1-8 or 9-18.

25. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it is used to implement the information transmission method described in any one of claims 1-8 or 9-18.

Images