Communication method, core network device, access network device, terminal, communication system and storage medium

Abstract

The embodiment of the invention provides a communication method, core network equipment, access network equipment, a terminal, a communication system and a storage medium. The method comprises the following steps: sending first information to access network equipment; wherein the first information is used for triggering the access network equipment to use a first channel to send second information to the terminal, and the second information is used for indicating to adjust the position of the terminal. The technical scheme provided by the embodiment of the invention can be adapted to a satellite-based communication architecture.

Description

Communication methods, core network equipment, access network equipment, terminals, communication systems, and storage media Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to communication methods, core network equipment, access network equipment, terminals, communication systems and storage media. Background Technology

[0002] In the field of communication technology, satellite-based communication has been introduced. Satellite communication, such as transmitting information to terminals, typically has limited power. To achieve optimal communication performance, it usually needs to be conducted under line-of-sight (LOS) conditions. However, even within the satellite signal coverage area, some users are still in non-line-of-sight (NLOS) scenarios, such as when the communication terminal is in a backpack or obstructed by buildings. In these scenarios, sending paging messages to the terminal may result in the terminal missing the paging message, which is detrimental to the operation of some important services, such as emergency calls.

[0003] Summary of the Invention

[0004] With the introduction of a satellite-based communication architecture, the communication mechanism needs to be adjusted.

[0005] This disclosure provides a communication method, core network equipment, access network equipment, terminal, communication system, and storage medium.

[0006] According to a first aspect of the present disclosure, a communication method is provided, the method being performed by a core network device, the method comprising:

[0007] Send the first message to the access network device;

[0008] The first information is used to trigger the access network device to send the second information to the terminal using the first channel, and the second information is used to indicate: adjust the position of the terminal.

[0009] According to a second aspect of the present disclosure, a communication method is provided, the method being performed by an access network device, the method comprising:

[0010] Receive the first information sent by the core network equipment;

[0011] The first information is used to trigger the access network device to send the second information to the terminal using the first channel, and the second information is used to indicate: adjust the position of the terminal.

[0012] According to a third aspect of the present disclosure, a communication method is provided, the method being executed by a terminal, the method comprising:

[0013] The terminal receives second information sent by the access network device using the first channel.

[0014] The second information is used to indicate: adjust the position of the terminal.

[0015] According to a fourth aspect of the present disclosure, a communication method is provided, the method comprising:

[0016] The core network equipment sends the first information to the access network equipment;

[0017] The first information is used to trigger the access network device to send the second information to the terminal using the first channel, and the second information is used to indicate: adjust the position of the terminal.

[0018] According to a fifth aspect of the present disclosure, a core network device is provided, the core network device comprising:

[0019] The transceiver module is configured as follows:

[0020] Send the first message to the access network device;

[0021] The first information is used to trigger the access network device to send the second information to the terminal using the first channel, and the second information is used to indicate: adjust the position of the terminal.

[0022] According to a sixth aspect of the present disclosure, an access network device is provided, the access network device comprising:

[0023] The transceiver module is configured as follows:

[0024] Receive the first information sent by the core network equipment;

[0025] The first information is used to trigger the access network device to send the second information to the terminal using the first channel, and the second information is used to indicate: adjust the position of the terminal.

[0026] According to a seventh aspect of the present disclosure, a terminal is provided, the terminal comprising:

[0027] The transceiver module is configured as follows:

[0028] The terminal receives second information sent by the access network device using the first channel.

[0029] The second information is used to indicate: adjust the position of the terminal.

[0030] According to an eighth aspect of the present disclosure, a communication system is provided, wherein the communication system includes a core network device, an access network device, and a terminal; the core network device is configured to implement the method of the first aspect, the access network device is configured to implement the method of the second aspect, and the terminal is configured to implement the method of the third aspect.

[0031] According to a ninth aspect of the present disclosure, a core network device is provided, the core network device comprising:

[0032] One or more processors;

[0033] The core network device is used to perform the method described in the first aspect.

[0034] According to a tenth aspect of the present disclosure, an access network device is provided, the access network device comprising:

[0035] One or more processors;

[0036] The access network device is used to perform the method described in the second aspect.

[0037] According to an eleventh aspect of the present disclosure, a terminal is provided, the terminal comprising:

[0038] One or more processors;

[0039] The terminal is used to execute the method described in the third aspect.

[0040] According to a twelfth aspect of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions that, when executed on a communication device, cause the communication device to perform the methods provided in the first aspect, the second aspect, and / or the third aspect.

[0041] The technical solution provided in this disclosure enhances the communication mechanism to enable communication of terminals under NLOS conditions.

[0042] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the embodiments of this disclosure. Attached Figure Description

[0043] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments of the invention.

[0044] Figure 1a is a schematic diagram of the architecture of a communication system according to an exemplary embodiment;

[0045] Figure 2a is a flowchart illustrating a communication method according to an exemplary embodiment;

[0046] Figure 3a is a flowchart illustrating a communication method according to an exemplary embodiment;

[0047] Figure 3b is a flowchart illustrating a communication method according to an exemplary embodiment;

[0048] Figure 4a is a flowchart illustrating a communication method according to an exemplary embodiment;

[0049] Figure 4b is a flowchart illustrating a communication method according to an exemplary embodiment;

[0050] Figure 5a is a flowchart illustrating a communication method according to an exemplary embodiment;

[0051] Figure 5b is a flowchart illustrating a communication method according to an exemplary embodiment;

[0052] Figure 6a is a schematic diagram of a communication system according to an exemplary embodiment;

[0053] Figure 7a is a flowchart illustrating a communication method according to an exemplary embodiment;

[0054] Figure 7b is a flowchart illustrating a communication method according to an exemplary embodiment;

[0055] Figure 8a is a schematic diagram of the structure of a core network device according to an exemplary embodiment;

[0056] Figure 8b is a schematic diagram of the structure of an access network device according to an exemplary embodiment;

[0057] Figure 8c is a schematic diagram of the structure of a terminal according to an exemplary embodiment;

[0058] Figure 9a is a schematic diagram of the structure of a UE according to an exemplary embodiment;

[0059] Figure 9b is a schematic diagram of the structure of a communication device according to an exemplary embodiment. Detailed Implementation

[0060] This disclosure provides a communication method, core network equipment, access network equipment, terminal, communication system, and storage medium.

[0061] In a first aspect, embodiments of this disclosure provide a communication method, the method being executed by a core network device, the method comprising:

[0062] Send the first message to the access network device;

[0063] The first information is used to trigger the access network device to send the second information to the terminal using the first channel, and the second information is used to indicate: adjust the position of the terminal.

[0064] In the above embodiments, the core network device can send first information to the access network device to trigger the access network device to send second information to the terminal using the first channel. Since the second information is used to indicate the adjustment of the terminal's position, the terminal can respond to the network's position adjustment instruction to adjust its position, thereby reliably receiving signals and achieving reliable communication.

[0065] In conjunction with some embodiments of the first aspect, in some embodiments, the first channel is a paging alarm channel (PAC), and the signal-to-noise ratio of the PAC is greater than a first threshold.

[0066] In the above embodiments, using a PAC with a signal-to-noise ratio greater than the first threshold to perform transmission is more reliable.

[0067] In conjunction with some embodiments of the first aspect, in some embodiments, sending the first information to the access network device includes:

[0068] Send the first information to the access network device based on the first opportune moment;

[0069] The first timing is one of the following:

[0070] Paging failed;

[0071] The paging failed and the number of paging failures is greater than or equal to the first threshold;

[0072] Paging failed within the first time period of the predefined time.

[0073] In the above embodiments, first information can be sent to the access network device in a timely manner at a first opportune moment, thereby triggering the access network device to send second information to the terminal in a timely manner using the first channel.

[0074] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0075] The first strategy determines whether to send the first information to the access network device;

[0076] Wherein, the first strategy is used to indicate at least one of the following:

[0077] If it is determined that an enhanced notification for paging needs to be initiated for the service corresponding to paging, the first information is sent to the access network device;

[0078] If it is determined that an enhanced notification for paging is not required for the service corresponding to the paging, the first information will not be sent to the access network device.

[0079] In the above embodiments, it can be explicitly determined whether to send the first information to the access network device based on the first strategy, so that whether to send the first information to the access network device can be adapted to whether or not to initiate the enhanced notification of paging for the service corresponding to paging.

[0080] In conjunction with some embodiments of the first aspect, in some embodiments, the first information is also used to indicate at least one of the following:

[0081] The number of times the second message is sent repeatedly;

[0082] The time interval between repeated transmissions of the second information.

[0083] In the above embodiments, since the first information indicates the number of times the second information is repeatedly sent and / or the time interval between the repeated sending of the second information, the terminal can reliably receive the second information based on the first information.

[0084] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0085] Send a paging message for the terminal to the access network device.

[0086] In the above embodiments, a paging message for the terminal can be sent to the access network device in a timely manner while sending the first information to the access network device.

[0087] In conjunction with some embodiments of the first aspect, in some embodiments the second information is also used to instruct the terminal to send third information to the access network device in response to the paging message, the third information including at least one of the following: signaling; data.

[0088] In the above embodiments, after receiving the second information, the terminal is able to promptly send data and / or data to the network in response to the paging message.

[0089] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0090] Start the first timer;

[0091] Wherein, if the first timer times out and no third information is received from the terminal, the core network device determines that paging the terminal has failed; and / or, if the third information is received from the terminal within the timeout period of the first timer, the core network device determines that paging the terminal has succeeded; the third information includes at least one of the following: signaling; data.

[0092] In the above embodiments, the status of paged terminal failure or paged terminal success can be monitored based on the timing of the first timer.

[0093] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0094] If the first timer times out and the third information is not received, it is determined that paging the terminal has failed.

[0095] Send the fourth information to the access network device;

[0096] The fourth piece of information is used to instruct the access network device to release the first channel.

[0097] In the above embodiments, if it is determined that paging the terminal has failed, third information can be sent to the access network device to instruct the access network device to release the first channel in a timely manner.

[0098] Secondly, embodiments of this disclosure provide a communication method, the method being executed by an access network device, the method comprising:

[0099] Receive the first information sent by the core network equipment;

[0100] The first information is used to trigger the access network device to send the second information to the terminal using the first channel, and the second information is used to indicate: adjust the position of the terminal.

[0101] In conjunction with some embodiments of the second aspect, in some embodiments, the first channel is a paging alarm channel (PAC), and the signal-to-noise ratio of the PAC is greater than a first threshold.

[0102] In conjunction with some embodiments of the second aspect, in some embodiments, the first information is also used to indicate at least one of the following:

[0103] The number of times the second message is sent repeatedly;

[0104] The time interval between repeated transmissions of the second information.

[0105] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0106] Based on the first information, the first channel is established.

[0107] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0108] The second information is sent to the terminal using the first channel.

[0109] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0110] Receive paging messages sent by the core network equipment;

[0111] The paging message is sent to the terminal.

[0112] In conjunction with some embodiments of the second aspect, in some embodiments, sending the paging message to the terminal includes:

[0113] The paging message is sent to the terminal using the first channel.

[0114] In conjunction with some embodiments of the second aspect, in some embodiments, the second information is further used to instruct the terminal to send third information to the access network device in response to the paging message, the third information including at least one of the following: signaling; data.

[0115] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0116] Receive the fourth message sent by the core network equipment;

[0117] The fourth piece of information is used to instruct the access network device to release the first channel.

[0118] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes at least one of the following:

[0119] Stop sending the second information to the terminal via the first channel;

[0120] Stop sending paging messages to the terminal via the first channel;

[0121] Based on the fourth information, the resources associated with the first channel are released.

[0122] Thirdly, embodiments of this disclosure provide a communication method, the method being executed by a terminal, the method comprising:

[0123] The terminal receives second information sent by the access network device using the first channel.

[0124] The second information is used to indicate: adjust the position of the terminal.

[0125] In conjunction with some embodiments of the third aspect, in some embodiments, the first channel is a paging alarm channel (PAC).

[0126] In conjunction with some embodiments of the third aspect, in some embodiments, the method further includes:

[0127] Receive paging messages sent by the access network device.

[0128] In conjunction with some embodiments of the third aspect, in some embodiments, receiving the paging message sent by the access network device includes:

[0129] The access network device receives the paging message sent to the terminal using the first channel.

[0130] In conjunction with some embodiments of the third aspect, in some embodiments, the second information is further used to instruct the terminal to send third information to the access network device in response to the paging message, the third information comprising at least one of the following: signaling; data.

[0131] In some embodiments, the method further includes at least one of the following:

[0132] Based on the second information, adjust the position of the terminal;

[0133] In response to the paging message, a third message is sent to the network; the third message includes at least one of the following: signaling; data.

[0134] Fourthly, embodiments of this disclosure provide a communication method, the method comprising:

[0135] The core network equipment sends the first information to the access network equipment;

[0136] The first information is used to trigger the access network device to send the second information to the terminal using the first channel, and the second information is used to indicate: adjust the position of the terminal.

[0137] Fifthly, embodiments of this disclosure provide a core network device, the core network device comprising:

[0138] The transceiver module is configured as follows:

[0139] Send the first message to the access network device;

[0140] The first information is used to trigger the access network device to send the second information to the terminal using the first channel, and the second information is used to indicate: adjust the position of the terminal.

[0141] Sixthly, embodiments of this disclosure provide an access network device, the access network device comprising:

[0142] The transceiver module is configured as follows:

[0143] Receive the first information sent by the core network equipment;

[0144] The first information is used to trigger the access network device to send the second information to the terminal using the first channel, and the second information is used to indicate: adjust the position of the terminal.

[0145] In a seventh aspect, embodiments of this disclosure provide a terminal, the terminal comprising:

[0146] The transceiver module is configured as follows:

[0147] The terminal receives second information sent by the access network device using the first channel.

[0148] The second information is used to indicate: adjust the position of the terminal.

[0149] Eighthly, embodiments of this disclosure provide a communication system, the communication system including a core network device, an access network device, and a terminal; the core network device is configured to implement the method described in the first aspect, the access network device is configured to implement the method described in the second aspect, and the terminal is configured to implement the method described in the third aspect.

[0150] Ninthly, embodiments of this disclosure provide a core network device, the core network device comprising:

[0151] One or more processors;

[0152] The core network device is used to perform the method described in the first aspect.

[0153] In a tenth aspect, embodiments of this disclosure provide an access network device, the access network device comprising:

[0154] One or more processors;

[0155] The access network device is used to perform the method described in the second aspect.

[0156] In one aspect, embodiments of this disclosure provide a terminal, the terminal comprising:

[0157] One or more processors;

[0158] The terminal is used to execute the method described in the third aspect.

[0159] In a twelfth aspect, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the methods described in optional implementations of the first, second, and / or third aspects.

[0160] In a thirteenth aspect, embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform the method as described in the optional implementations of the first, second, and / or third aspects.

[0161] In a fourteenth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in optional implementations of the first, second, and / or third aspects.

[0162] In a fifteenth aspect, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the methods described according to optional implementations of the first, second, and / or third aspects above.

[0163] It is understood that the aforementioned core network equipment, access network equipment, terminals, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0164] This disclosure provides a communication method. In some embodiments, the terms "communication method" and "information indication method," "information processing method," and "information transmission method" can be used interchangeably, as can the terms "communication system" and "information processing system."

[0165] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular 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 particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0166] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0167] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0168] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0169] In the embodiments disclosed herein, "multiple" refers to two or more.

[0170] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0171] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0172] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0173] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0174] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0175] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.

[0176] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0177] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0178] In some embodiments, devices, etc., can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as “device”, “equipment”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “chip”, “chip system”, “entity”, and “subject” can be used interchangeably.

[0179] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0180] In some embodiments, the terms "access network device (AN device)," "radio access network device (RAN device)," "base station (BS)," "radio base station," "fixed station," "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," and "bandwidth part (BWP)" can be used interchangeably.

[0181] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", "subscriber station", "mobile unit", "subscriber unit", "wireless unit", "remote unit", "mobile device", "wireless device", "wireless communication device", "remote device", "mobile subscriber station", "access terminal", "mobile terminal", "wireless terminal", "remote terminal", "handset", "user agent", "mobile client", and "client" can be used interchangeably.

[0182] In some embodiments, access network devices, core network devices, or network devices can be replaced by terminals. For example, embodiments of this disclosure can also be applied to structures where communication between access network devices, core network devices, or network devices and terminals is replaced by communication between multiple terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the structure can also be configured such that the terminal has all or part of the functions of the access network device. Furthermore, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can be replaced with sidelink channel, and uplink link, downlink, etc., can be replaced with sidelink link.

[0183] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, core network device, or network device may also be configured to have all or some of the functions of the terminal.

[0184] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0185] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0186] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0187] Figure 1a is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0188] As shown in Figure 1a, the communication system 100 includes a terminal 101, an access network device 102, and a core network device 103.

[0189] In some embodiments, the terminal includes, but is not limited to, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home.

[0190] In some embodiments, the access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system.

[0191] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0192] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0193] In some embodiments, the core network equipment can be a single device, including a first network element, a second network element, etc., or it can be multiple devices or a group of devices, each including all or part of the first network element, the second network element, etc. Network elements can be virtual or physical. The core network includes, for example, at least one of the Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC).

[0194] In some embodiments, the first network element is, for example, the Access and Mobility Management Function (AMF).

[0195] In some embodiments, the first network element is used to perform registration, connection, reachability, and mobility management, and its name is not limited thereto.

[0196] In some embodiments, the first network element can be independent of the core network equipment.

[0197] In some embodiments, the first network element may be part of the core network equipment.

[0198] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.

[0199] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1a, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1a are illustrative. The communication system may include all or some of the main bodies in FIG1a, or it may include other main bodies outside of FIG1a. The number and form of each main body are arbitrary. Each main body may be physical or virtual. The connection relationship between the main bodies is illustrative. The main bodies may not be connected or may be connected. The connection may be in any way, such as direct connection or indirect connection, wired connection or wireless connection.

[0200] The embodiments disclosed herein 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), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0201] In some embodiments, satellite communications, such as information transmission to the UE, typically have very limited power and generally require LOS conditions to achieve optimal performance. However, within satellite coverage, 10% of users experience poor or non-line-of-sight (NLOS) channel conditions. For terminal-initiated services, users are aware of the channel quality and can therefore achieve LOS communication by consciously adjusting their location to transmit or receive signals. For terminal-received network-initiated services, users are unaware of their channel conditions and may miss important paging or messages even within LOS coverage areas (such scenarios include the UE being in a pocket, car, or obstructed by buildings).

[0202] In some embodiments, if the UE is in the Radio Resource Connection Idle (RRC_IDLE) or Radio Resource Connection Deactivated (RRC_INACTIVE) state, it will periodically wake up to check the paging signal. When the UE wakes up, it needs to detect that the Synchronization Signal / PBCH Block (SSB) is correct in order to continue monitoring the paging message. When the NLOS loss is as high as 18dB, the UE usually cannot detect the SSB even if it is still within the satellite beam coverage area. In this case, when the network attempts to send a normal paging signal via the Traditional New Radio (NR) physical downlink channel, it will start a T3513 timer and wait for a response from the UE. In cases of severe NLOS, no response will be received from the UE, and when T3513 expires, it indicates that the paging has failed. After multiple failed paging attempts, the network will eventually give up on paging.

[0203] In some embodiments, it is important to paging UEs that are experiencing NLOS, as this will greatly improve the user experience in NTN communication systems, especially for important public safety services such as emergency call services.

[0204] In some embodiments, in order to improve the reliability of paging signaling reception and solve the above problems, a dedicated Paging Alert Channel (PAC) is proposed to enhance communication when the existing paging channel cannot successfully transmit paging to the UE.

[0205] In some embodiments, PAC uses a low code rate combined with multiple retransmissions to extend the received signal-to-noise ratio (SNR) without affecting the remaining downlink channels, including the Physical Broadcast Channel (PBCH), Physical Downlink Control Channel (PDCCH), and Physical Downlink Shared Channel (PDSCH), thus without affecting the efficiency of existing systems.

[0206] In some embodiments, PAC is used to notify the UE when normal paging cannot be delivered due to factors such as poor UE signal reception conditions. However, how to use the PAC mechanism to notify the UE and when to initiate or terminate PAC are unclear.

[0207] Figure 2a is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2a, the present disclosure relates to a communication method for a communication system 100, the method comprising:

[0208] Step S2101: The core network device determines whether to send the first information to the access network device.

[0209] In some embodiments, the core network device determines whether to send the first information to the access network device based on a first policy.

[0210] In some embodiments, the first information may also be referred to as indication information, such as indication information for initiating robust notification. Here, robust notification may be second information sent by the access network device to the terminal.

[0211] In some embodiments, the first information is used to trigger the access network device to send the second information to the terminal using the first channel.

[0212] In some embodiments, the second information is used to indicate: adjusting the position of the terminal. Here, adjusting the position of the terminal can be based on the terminal's control or the terminal being adjusted after displaying a reminder message; no limitation is made here.

[0213] In some embodiments, adjusting the position of the terminal may be adjusting the relative position of the terminal, such as the position relative to object A. It should be noted that if A is moved, it can also be understood that the position of the terminal is changed, which is not limited here.

[0214] In some embodiments, the second information is used to indicate that the paging message cannot be transmitted to the terminal.

[0215] In some embodiments, the second information is further used to instruct the terminal to send third information to the access network device in response to the paging message, the third information including at least one of the following: signaling; data.

[0216] In some embodiments, the second information is further used to instruct the terminal to send third information to the access network device in response to the paging message, the third information including at least one of the following: signaling; data.

[0217] In some embodiments, the second information is further used to instruct the terminal to send signaling and / or data to the network in response to a paging message.

[0218] In some embodiments, the first channel is a paging alarm channel (PAC).

[0219] In some embodiments, the signal-to-noise ratio of the first channel is greater than a first threshold.

[0220] In some embodiments, the PAC uses a low coding rate and / or physical waveform repetition to enhance the signal-to-noise ratio.

[0221] In some embodiments, the first strategy is used to indicate at least one of the following:

[0222] If it is determined that an enhanced notification for paging needs to be initiated for the service corresponding to paging, the first information is sent to the access network device;

[0223] If it is determined that an enhanced notification for paging is not required for the service corresponding to the paging, the first information will not be sent to the access network device.

[0224] In some embodiments, the core network device determines that an enhanced notification for paging needs to be initiated for the service corresponding to the paging, and determines to send first information to the access network device.

[0225] In some embodiments, the core network device determines that it does not need to initiate an enhanced paging notification for the service corresponding to the paging, and determines not to send the first information to the access network device.

[0226] In some embodiments, the core network device determines that the service corresponding to the paging is an emergency service and decides to send first information to the access network device.

[0227] In some embodiments, the core network device determines that the service corresponding to the paging is a non-urgent service and decides not to send the first information to the access network device.

[0228] In some embodiments, the core network equipment may be an Access and Mobility Management Function (AMF), but is not limited thereto.

[0229] In some embodiments, the access network device may be a base station, such as a base station deployed on a satellite, but is not limited thereto.

[0230] Step S2102: The core network device sends the first information to the access network device.

[0231] In some embodiments, the access network device receives first information sent by the core network device.

[0232] In some embodiments, the core network device sends first information to the access network device at a first opportune moment.

[0233] In some embodiments, the first timing is one of the following:

[0234] Paging failed;

[0235] The paging failed and the number of paging failures is greater than or equal to the first threshold;

[0236] Paging failed within the first time period, which can be a predefined time period.

[0237] In some embodiments, the core network device determines that paging has failed and sends first information to the access network device.

[0238] In some embodiments, if the core network device fails to page and the number of page failures is greater than or equal to a quantity threshold, it sends first information to the access network device.

[0239] In some embodiments, if the core network device fails to page within a first time period, it sends a first message to the access network device.

[0240] In some embodiments, timer T3513 times out, and paging fails.

[0241] In some embodiments, the first threshold is a quantity threshold, such as 10 times.

[0242] For example, if the number of times T3513 times out and paging fails exceeds the quantity threshold, the core network device sends the first information to the access network device.

[0243] In some embodiments, the first information is also used to indicate at least one of the following:

[0244] The number of times the second message is sent repeatedly;

[0245] The time interval between repeated transmissions of the second information.

[0246] Step S2103: The core network equipment starts the first timer.

[0247] In some embodiments, the core network device starts a first timer while sending first information to the access network device.

[0248] In some embodiments, the core network device starts a first timer before sending the first information to the access network device.

[0249] In some embodiments, the core network device starts a first timer after sending the first information to the access network device.

[0250] In some embodiments, the time interval between the core network sending the first information and the time starting the first timer is a first time interval, for example, 1 second.

[0251] In some embodiments, if the first timer times out and no third information is received from the terminal, the core network device determines that paging the terminal has failed.

[0252] In some embodiments, if the third information sent by the terminal is received within the timing period of the first timer, the core network device determines that paging the terminal was successful.

[0253] In some embodiments, the third information includes at least one of the following: signaling; data.

[0254] In some embodiments, the third information is response information sent by the terminal in response to the paging message.

[0255] In some embodiments, the response information may be signaling and / or data sent by the terminal.

[0256] In some embodiments, the first timer is a newly added timer used to specify the duration for initiating the enhanced notification. Here, the enhanced notification may be second information sent by the access network device to the terminal.

[0257] Step S2104: The access network device establishes the first channel.

[0258] In some embodiments, the access network device establishes a first channel based on first information.

[0259] Step S2105: The access network device sends the second information to the terminal.

[0260] In some embodiments, the terminal receives second information sent by the access network device.

[0261] In some embodiments, the access network device uses a first channel to send second information to the terminal.

[0262] In some embodiments, the second information may be an enhanced notification message.

[0263] In some embodiments, the second information may be sent to the terminal based on the number of times the second information is repeatedly sent as indicated by the first information and / or the time interval between the repeated sending of the second information.

[0264] Step S2106: The core network device sends a paging message to the access network device.

[0265] In some embodiments, the access network device receives a paging message sent by the core network device.

[0266] Step S2107: The access network device sends a paging message to the terminal.

[0267] In some embodiments, the terminal receives a paging message sent by the access network device.

[0268] In some embodiments, the access network device receives a paging message sent by the core network device.

[0269] In some embodiments, the core network device sends a paging message for the terminal to the access network device.

[0270] In some embodiments, the core network device sends a paging message to the access network device while simultaneously sending the first information to the access network device.

[0271] In some embodiments, the core network device sends a paging message to the access network device before sending the first information to the access network device.

[0272] In some embodiments, the core network device sends a paging message to the access network device after sending the first information to the access network device.

[0273] In some embodiments, a second time interval is specified between the time the core network device sends the first information and the time it sends the paging message, for example, the second time interval is 1 second.

[0274] In some embodiments, the access network device uses a first channel to send a paging message to the terminal.

[0275] In some embodiments, the access network device may also use channels other than the first channel to send paging messages, which is not limited here.

[0276] In some embodiments, the paging message includes the terminal identifier and / or location information of the terminal.

[0277] In some embodiments, the paging message may include the identifier of the base station and / or cell identifier that the terminal recently accessed.

[0278] Step S2108: The terminal performs the operation.

[0279] In some embodiments, the terminal adjusts its position based on the second information.

[0280] In some embodiments, the terminal sends third information to the network in response to the paging message.

[0281] In some embodiments, the third information includes at least one of the following: signaling; data.

[0282] Step S2109: The core network device sends the fourth information to the access network device.

[0283] In some embodiments, the access network device receives fourth information sent by the core network device.

[0284] In some embodiments, the core network device determines that paging the terminal has failed if the first timer has expired and the third information has not been received; the core network device then sends a fourth information to the access network device.

[0285] In some embodiments, the fourth information is used to instruct the access network device to release the first channel.

[0286] Step S2110: The access network device performs the operation.

[0287] In some embodiments, the access network device performs an operation after receiving the fourth information.

[0288] In some embodiments, the operation can be performed by at least one of the following:

[0289] The access network device stops sending the second information to the terminal based on the first channel;

[0290] The access network device stops sending paging messages to the terminal based on the first channel;

[0291] The access network device releases the resources associated with the first channel based on the fourth information.

[0292] In some embodiments, the access network device stops sending the second information to the terminal based on the first channel.

[0293] In some embodiments, the access network device stops sending paging messages to the terminal based on the first channel.

[0294] In some embodiments, the access network device releases resources associated with the first channel based on the fourth information.

[0295] In some embodiments, the term "information" may be used interchangeably with terms such as "message," "signal," "signaling," "report," "configuration," "indication," "instruction," "command," "channel," "parameter," "field," and "data."

[0296] In some embodiments, the term "send" may be used interchangeably with terms such as "transmit," "report," or "transmit."

[0297] The information indication method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2110. For example, step S2101 can be implemented as an independent embodiment, step S2102 can be implemented as an independent embodiment, step S2103 can be implemented as an independent embodiment, step S2104 can be implemented as an independent embodiment, step S2105 can be implemented as an independent embodiment, step S2106 can be implemented as an independent embodiment, step S2107 can be implemented as an independent embodiment, step S2108 can be implemented as an independent embodiment, step S2109 can be implemented as an independent embodiment, and step S2110 can be implemented as an independent embodiment. For example, step S2102 combined with steps S2104, S2105, S2106, S2107, and S2108 can be implemented as an independent embodiment; step S2101 combined with steps S2102, S2103, S2104, S2105, S2106, S2107, and S2108 can be implemented as an independent embodiment; and step S2102 combined with steps S2104, S2105, S2106, S2107, S2108, S2109, and S2110 can be implemented as an independent embodiment, but is not limited thereto. It should be noted that each step can be implemented independently, or, without contradiction, its order can be arbitrarily changed and it can be freely combined for implementation.

[0298] Figure 3a is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3a, the embodiment of the present disclosure relates to a communication method executed by a core network device, the method comprising:

[0299] Step S3101: Determine whether to send the first information to the access network device.

[0300] In some embodiments, optional implementations of step S3101 can be found in optional implementations of step S2101 in FIG2a and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0301] Step S3102: Send the first information to the access network device.

[0302] In some embodiments, optional implementations of step S3102 can be found in optional implementations of step S2102 in FIG2a and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0303] Step S3103: Start the first timer.

[0304] In some embodiments, optional implementations of step S3103 can be found in optional implementations of step S2103 in FIG2a and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0305] Step S3104: Send a paging message to the access network device.

[0306] In some embodiments, optional implementations of step S3104 can be found in optional implementations of step S2106 in FIG2a and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0307] Step S3105: Send the fourth information to the access network device.

[0308] In some embodiments, optional implementations of step S3105 can be found in optional implementations of step S2109 in FIG2a and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0309] The information indication method involved in the embodiments of this disclosure may include at least one of steps S3101 to S3105. For example, step S3101 can be implemented as an independent embodiment, step S3102 can be implemented as an independent embodiment, step S3103 can be implemented as an independent embodiment, step S3104 can be implemented as an independent embodiment, and step S3105 can be implemented as an independent embodiment. For example, step S3101 combined with step S3102 can be implemented as an independent embodiment, step S3102 combined with steps S3103, S3104, and S3105 can be implemented as an independent embodiment, and step S3101 combined with steps S3102, S3103, S3104, and S3105 can be implemented as an independent embodiment, but it is not limited thereto. It should be noted that each step can be implemented independently, or, without contradiction, the order can be arbitrarily changed and the steps can be freely combined for implementation.

[0310] Figure 3b is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3b, the embodiment of the present disclosure relates to a communication method executed by a core network device, the method comprising:

[0311] Step S3201: Send the first information to the access network device.

[0312] In some embodiments, the first information is used to trigger the access network device to send second information to the terminal using a first channel, the second information being used to indicate: adjusting the position of the terminal.

[0313] In some embodiments, optional implementations of step S3201 can be found in optional implementations of step S2102 in FIG2a and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0314] In some embodiments, the second information is further used to instruct the terminal to send signaling and / or data to the network in response to a paging message.

[0315] Send the first information to the access network device based on the first opportune moment;

[0316] The first timing is one of the following:

[0317] Paging failed;

[0318] The paging failed and the number of paging failures is greater than or equal to the first threshold;

[0319] Paging failed during the first time period.

[0320] In some embodiments, the method further includes:

[0321] The first strategy determines whether to send the first information to the access network device;

[0322] Wherein, the first strategy is used to indicate at least one of the following:

[0323] If it is determined that an enhanced notification for paging needs to be initiated for the service corresponding to paging, the first information is sent to the access network device;

[0324] If it is determined that an enhanced notification for paging is not required for the service corresponding to the paging, the first information will not be sent to the access network device.

[0325] In some embodiments, the first information is also used to indicate at least one of the following:

[0326] The number of times the second message is sent repeatedly;

[0327] The time interval between repeated transmissions of the second information.

[0328] In some embodiments, the method further includes:

[0329] Send a paging message for the terminal to the access network device.

[0330] In some embodiments, the second information is further used to instruct the terminal to send third information to the access network device in response to the paging message, the third information including at least one of the following: signaling; data.

[0331] In some embodiments, the method further includes:

[0332] Start the first timer;

[0333] Wherein, if the first timer times out and no third information is received from the terminal, the core network device determines that paging the terminal has failed; and / or, if the third information is received from the terminal within the timeout period of the first timer, the core network device determines that paging the terminal has succeeded; the third information includes at least one of the following: signaling; data.

[0334] In some embodiments, the method further includes:

[0335] If the first timer times out and the third information is not received, it is determined that paging the terminal has failed.

[0336] Send the fourth information to the access network device;

[0337] The fourth piece of information is used to instruct the access network device to release the first channel.

[0338] Figure 4a is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 4a, the embodiment of the present disclosure relates to a communication method executed by an access network device, the method comprising:

[0339] Step S4101: Obtain the first information.

[0340] In some embodiments, optional implementations of step S4101 can be found in optional implementations of step S2102 in FIG2a and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0341] In some embodiments, the access network device receives first information sent by the core network device, but is not limited thereto; it may also receive first information sent by other entities.

[0342] In some embodiments, the access network device obtains first information as defined by the protocol.

[0343] In some embodiments, the access network device obtains first information from the upper layer(s).

[0344] In some embodiments, the access network device processes the information to obtain the first information.

[0345] In some embodiments, step S4101 is omitted, and the access network device autonomously implements the function indicated by the first information, or the above function is the default or default.

[0346] Step S4102: Establish the first channel.

[0347] In some embodiments, optional implementations of step S4102 can be found in optional implementations of step S2104 in FIG2a and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0348] Step S4103: Send the second information to the terminal.

[0349] In some embodiments, optional implementations of step S4103 can be found in optional implementations of step S2105 in FIG2a and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0350] Step S4104: Receive a paging message sent by the core network device.

[0351] In some embodiments, optional implementations of step S4104 can be found in optional implementations of step S2106 in FIG2a and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0352] Step S4105: Send a paging message to the terminal.

[0353] In some embodiments, optional implementations of step S4105 can be found in optional implementations of step S2107 in FIG2a and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0354] Step S4106: Obtain the fourth piece of information.

[0355] In some embodiments, the access network device receives third information sent by the core network device, but is not limited thereto; it may also receive third information sent by other entities.

[0356] In some embodiments, the access network device obtains third information as defined by the protocol.

[0357] In some embodiments, the access network device obtains third information from the upper layer(s).

[0358] In some embodiments, the access network device processes the information to obtain third information.

[0359] In some embodiments, step S4106 is omitted, and the access network device autonomously implements the function indicated by the third information, or the above function is defaulted or set to default.

[0360] In some embodiments, optional implementations of step S4106 can be found in optional implementations of step S2109 in FIG2a and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0361] Step S4107: Perform the operation.

[0362] In some embodiments, optional implementations of step S4107 can be found in optional implementations of step S2110 in FIG2a and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0363] The information indication method involved in the embodiments of this disclosure may include at least one of steps S4101 to S4107. For example, step S4101 can be implemented as an independent embodiment, step S4102 can be implemented as an independent embodiment, step S4103 can be implemented as an independent embodiment, step S4104 can be implemented as an independent embodiment, step S4105 can be implemented as an independent embodiment, step S4106 can be implemented as an independent embodiment, and step S4107 can be implemented as an independent embodiment. For example, step S4101 combined with steps S4102, S4103, S4104, and S4105 can be implemented as an independent embodiment, and step S4101 combined with steps S4102, S4103, S4104, S4105, S4106, and S4107 can be implemented as an independent embodiment, but is not limited thereto. It should be noted that each step can be implemented independently, or, provided there are no contradictions, the order can be changed and they can be freely combined for implementation.

[0364] Figure 4b is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 4b, the embodiment of the present disclosure relates to a communication method executed by an access network device, the method comprising:

[0365] Step S4201: Receive the first information sent by the core network device.

[0366] In some embodiments, the first information is used to trigger the access network device to send second information to the terminal using a first channel, the second information being used to indicate: adjusting the position of the terminal.

[0367] In some embodiments, optional implementations of step S4201 can be found in optional implementations of step S2102 in FIG2a and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0368] In some embodiments, the first channel is a paging alarm channel (PAC), and the signal-to-noise ratio of the PAC is greater than a first threshold.

[0369] In some embodiments, the first information is also used to indicate at least one of the following:

[0370] The number of times the second message is sent repeatedly;

[0371] The time interval between repeated transmissions of the second information.

[0372] In some embodiments, the method further includes:

[0373] Based on the first information, the first channel is established.

[0374] In some embodiments, the method further includes:

[0375] The second information is sent to the terminal using the first channel.

[0376] In some embodiments, the method further includes:

[0377] Receive paging messages sent by the core network equipment;

[0378] The paging message is sent to the terminal.

[0379] In some embodiments, sending the paging message to the terminal includes:

[0380] The paging message is sent to the terminal using the first channel.

[0381] In some embodiments, the second information is further used to instruct the terminal to send third information to the access network device in response to the paging message, the third information including at least one of the following: signaling; data.

[0382] In some embodiments, the method further includes:

[0383] Receive the fourth message sent by the core network equipment;

[0384] The fourth piece of information is used to instruct the access network device to release the first channel.

[0385] In some embodiments, the method further includes at least one of the following:

[0386] Stop sending the second information to the terminal via the first channel;

[0387] Stop sending paging messages to the terminal via the first channel;

[0388] Based on the fourth information, the resources associated with the first channel are released.

[0389] Figure 5a is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 5a, the embodiment of the present disclosure relates to a communication method executed by a terminal, the method including:

[0390] Step S5101: Obtain the second information.

[0391] In some embodiments, optional implementations of step S5101 can be found in optional implementations of step S2105 in FIG2a and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0392] In some embodiments, the terminal receives second information sent by the access network device, but is not limited thereto; it may also receive second information sent by other entities.

[0393] In some embodiments, the terminal obtains second information as defined by the protocol.

[0394] In some embodiments, the terminal obtains second information from the upper layer(s).

[0395] In some embodiments, the terminal processes the information to obtain the second information.

[0396] In some embodiments, step S5101 is omitted, and the terminal autonomously implements the function indicated by the second information, or the above function is defaulted or set to default.

[0397] Step S5102: Receive a paging message sent by the access network device.

[0398] In some embodiments, optional implementations of step S5102 can be found in optional implementations of step S2107 in FIG2a and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0399] Step S5103: Perform the operation.

[0400] In some embodiments, optional implementations of step S5103 can be found in optional implementations of step S2110 in FIG2a and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0401] The information indication method involved in the embodiments of this disclosure may include at least one of steps S5101 to S5103. For example, step S5101 may be implemented as an independent embodiment, step S5102 may be implemented as an independent embodiment, and step S5103 may be implemented as an independent embodiment. For example, step S5101 combined with step S5103 may be implemented as an independent embodiment, or step S5101 combined with steps S5102 and S5103 may be implemented as an independent embodiment, but it is not limited thereto. It should be noted that each step can be implemented independently, or the order can be arbitrarily changed and the steps can be freely combined without contradiction.

[0402] Figure 5b is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 5b, the embodiment of the present disclosure relates to a communication method executed by a terminal, the method including:

[0403] Step S5201: Receive the second information sent by the access network device to the terminal using the first channel.

[0404] In some embodiments, the second information is used to indicate: adjusting the position of the terminal.

[0405] In some embodiments, optional implementations of step S5201 can be found in optional implementations of step S2105 in FIG2a and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0406] In some embodiments, the first channel is a paging alarm channel (PAC).

[0407] In some embodiments, the method further includes:

[0408] Receive paging messages sent by the access network device.

[0409] In some embodiments, receiving the paging message sent by the access network device includes:

[0410] The access network device receives the paging message sent to the terminal using the first channel.

[0411] In some embodiments, the second information is further used to instruct the terminal to send third information to the access network device in response to the paging message, the third information including at least one of the following: signaling; data.

[0412] In some embodiments, the method further includes at least one of the following:

[0413] Based on the second information, adjust the position of the terminal;

[0414] In response to the paging message, a third message is sent to the network; the third message includes at least one of the following: signaling; data.

[0415] Figure 6a is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 6a, the present disclosure relates to a communication method for a communication system 100, the method including one of the following steps:

[0416] Step S6101: The core network device sends the first information to the access network device.

[0417] In some embodiments, the first information is used to trigger the access network device to send second information to the terminal using a first channel, the second information being used to indicate: adjusting the position of the terminal.

[0418] In some embodiments, optional implementations of step S6101 can be found in optional implementations of step S2102 in FIG2a and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0419] In some embodiments, the above methods may include the methods of the core network equipment side, access network equipment side, and terminal side embodiments described above, which will not be repeated here.

[0420] To better understand the embodiments of this disclosure, the following exemplary embodiments are provided for further explanation:

[0421] For the AMF side:

[0422] In some embodiments, the AMF sends an instruction message (corresponding to the first message in this disclosure) to the gNB (wireless access device) to initiate a robust notification (corresponding to the second message in this disclosure).

[0423] In some embodiments, when a second timer (e.g., T3513, used to determine paging failure) expires and the number of paging failures reaches a predetermined number, the AMF decides to send the indication information.

[0424] In some embodiments, when sending the indication information, a first timer (added) is also started. The first timer is used to specify the duration for starting the enhanced notification. When the first timer expires and no signaling / data is received from the UE, the AMF determines that the enhanced notification has failed to be enabled.

[0425] In some embodiments, if no signaling and / or data are received from the UE, an instruction to stop the enhancement notification (corresponding to the third information) is issued.

[0426] In some embodiments, when sending the indication (corresponding to the first information), the AMF also sends a paging message to the radio access device, the paging message containing the UE identifier and location information (e.g., the identifier of the gNB most recently accessed by the UE, the cell identifier, etc.).

[0427] In some embodiments, when sending the indication (corresponding to the first information), the enhanced notification initiation strategy is also included, the strategy including the number of times the enhanced notification message is repeatedly sent and the time interval between repeated sending, etc.

[0428] For the wireless access device side:

[0429] In some embodiments, an instruction from the startup enhancement notification (corresponding to the first information) is received, and the PAC channel is configured according to the instruction.

[0430] In some embodiments, a paging message is received and the paging message is sent to the UE.

[0431] In some embodiments, the paging message is sent via PAC, and the message further includes second information, which is used to instruct the UE to change its location in response to the paging message and to send signaling instructions.

[0432] In some embodiments, the paging message is sent via a downlink channel other than the PAC.

[0433] In some embodiments, an enhanced notification message (corresponding to the second information) is sent to the UE. The enhanced notification message is sent via PAC and is used to instruct the UE to change its location in response to the paging message and to send signaling instructions.

[0434] In some embodiments, the number of times the message is repeatedly sent to the UE via PAC or the retransmission interval is controlled according to the enhanced notification enable policy.

[0435] In some embodiments, when an instruction to stop enhanced notification is received (corresponding to third information), the sending of the message via the PAC is stopped and the PAC is released.

[0436] Example 1:

[0437] Please refer to Figure 7a. This disclosure relates to a communication method, which includes:

[0438] Step S7101: Perform registration.

[0439] In some embodiments, the UE accesses the PLMN via satellite and performs a registration process between the UE and the 5GC.

[0440] Step S7102: Send a paging message.

[0441] In some embodiments, the AMF is triggered to send a paging message to the UE. This triggering is caused by non-access stratum (NAS) signaling or user data to be sent to the UE.

[0442] Step S7103: Confirm the activation of enhanced notifications.

[0443] In some embodiments, if paging is applied, timer 3513 is enabled in the AMF to wait for a response from the UE. If the AMF does not receive any response from the UE when the timer based on the operation policy expires, the AMF may resend the paging message to the UE. After a certain number of failed attempts, the AMF determines to initiate enhanced paging (corresponding to the second information) based on the operator policy. The operator policy may be, for example, that the AMF determines to start enhanced paging if the service being paging is an emergency service, and does not determine to start enhanced paging for other types of services.

[0444] Step S7104 includes steps S7104a and S7104b.

[0445] Step S7104a: Send the first instruction information.

[0446] In some embodiments, based on the determination in step S7103, the AMF sends an indication to the gNB that enhanced paging is applied to the UE (corresponding to the first indication information).

[0447] In some embodiments, an enhanced paging policy may be sent to the gNB, which includes the number of times the enhanced paging is repeated and the interval for retransmitting the enhanced paging message.

[0448] Step S7104b: Send a paging message.

[0449] In some embodiments, the AMF simultaneously re-initiates the paging message.

[0450] Step S7105: Start the first timer.

[0451] In some embodiments, if the AMF sends an indication to the gNB, a first timer is started in the AMF to monitor whether the enhanced paging is successful. If the timer expires and the AMF does not receive any response from the UE, the enhanced paging fails.

[0452] Step S7106: Create PAC.

[0453] In some embodiments, upon receiving the instruction sent in step S7104a, the gNB establishes a paging alarm channel (PAC).

[0454] Step S7107: Send the second instruction information.

[0455] In some embodiments, enhanced paging is achieved by transmitting a paging message received from the AMF via the PAC. Additionally, a second indication message (corresponding to second information) is transmitted via the PAC, instructing the UE to change its location in response to the paging message.

[0456] In some embodiments, the message may be sent repeatedly based on the policy received in step S7104.

[0457] Step S7108: Determine that the first timer has timed out.

[0458] In some embodiments, when the first timer expires and the AMF still has not received any response from the UE, the enhanced paging fails.

[0459] Step S7109: Send a message indicating that enhanced paging has been terminated.

[0460] In some embodiments, the AMF sends a message to the gNB indicating that enhanced paging has been terminated.

[0461] Step S7110: Release PAC.

[0462] In some embodiments, based on a message indicating the termination of enhanced paging, the gNB releases resources associated with the PAC.

[0463] In the embodiments disclosed herein, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations in other embodiments.

[0464] Example 2:

[0465] Please refer to Figure 7b. This disclosure relates to a communication method, which includes:

[0466] Step S7201: Perform registration.

[0467] In some embodiments, the UE accesses the Public Land Mobile Network (PLMN) via satellite and performs a registration process between the UE and the 5GC.

[0468] Step S7202: Send a paging message.

[0469] In some embodiments, the AMF is triggered to send a paging message to the UE. This triggering is caused by non-access stratum (NAS) signaling or user data to be sent to the UE.

[0470] Step S7203: Confirm the activation of enhanced notifications.

[0471] In some embodiments, if paging is applied, timer 3513 is enabled in the AMF to wait for a response from the UE. If the AMF does not receive any response from the UE when the timer based on the operation policy expires, the AMF may resend the paging message to the UE. After a certain number of failed attempts, the AMF determines to initiate enhanced paging (corresponding to the second information) based on the operator policy. The operator policy may be, for example, that the AMF determines to start enhanced paging if the service being paging is an emergency service, and does not determine to start enhanced paging for other types of services.

[0472] Step S7204 includes steps S7204a and S7204b.

[0473] Step S7204a: Send the first instruction information (corresponding to the first information).

[0474] In some embodiments, based on the determination in step S7203, the AMF sends an indication to the gNB that enhanced paging is applied to the UE (corresponding to the first indication information).

[0475] In some embodiments, an enhanced paging policy may be sent to the gNB, which includes the number of times the enhanced paging is repeated and the interval for retransmitting the enhanced paging message.

[0476] Step S7204b: Send a paging message.

[0477] In some embodiments, the AMF simultaneously re-initiates the paging message.

[0478] Step S7205: Start the first timer.

[0479] In some embodiments, if the AMF sends an indication to the gNB, a first timer is started in the AMF to monitor whether the enhanced paging is successful. If the timer expires and the AMF does not receive any response from the UE, the enhanced paging fails.

[0480] Step S7206: Create PAC.

[0481] In some embodiments, upon receiving the instruction sent in step S7104a, the gNB establishes a paging alarm channel (PAC).

[0482] Step S7207: Send the second instruction information.

[0483] In some embodiments, enhanced paging is achieved by transmitting a paging message received from the AMF via the PAC. Additionally, a second indication message is transmitted via the PAC, instructing the UE to change its location in response to the paging message.

[0484] Step S7208: Adjust the position of the terminal.

[0485] In some embodiments, the position of the terminal is adjusted based on the second instruction information.

[0486] Step S7209: Send a service request.

[0487] In some embodiments, in response to paging, the UE initiates a service request procedure to the 5GC to establish or activate a connection. The network may then send NAS or downlink data to the UE upon completion of the service request.

[0488] This 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 the steps performed by the terminal in any of the above methods. Alternatively, another apparatus is provided that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0489] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0490] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute 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 relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using 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 configuring the hardware circuit 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. Furthermore, 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), or a Deep Learning Processing Unit (DPU).

[0491] Figure 8a is a schematic diagram of the core network device proposed in this embodiment of the present disclosure. As shown in Figure 8a, the core network device 8100 may include at least one of a transceiver module 8101, a processing module 8102, etc. In some embodiments, the transceiver module is used to send and receive information. Optionally, the transceiver module is used to perform at least one of the communication steps such as sending and / or receiving performed by the core network device in any of the above methods, which will not be described in detail here. Optionally, the processing module is used to perform at least one of the other steps performed by the core network device in any of the above methods, which will not be described in detail here.

[0492] Figure 8b is a schematic diagram of the structure of the access network device according to an embodiment of this disclosure. As shown in Figure 8b, the access network device 8200 may include at least one of a transceiver module 8201, a processing module 8202, etc. In some embodiments, the transceiver module is used to send and receive information. Optionally, the transceiver module is used to perform at least one of the communication steps such as sending and / or receiving performed by the access network device in any of the above methods, which will not be described in detail here. Optionally, the processing module is used to perform at least one of the other steps performed by the access network device in any of the above methods, which will not be described in detail here.

[0493] Figure 8c is a schematic diagram of the terminal structure proposed in an embodiment of this disclosure. As shown in Figure 8c, the terminal 8300 may include at least one of a transceiver module 8301, a processing module 8302, etc. In some embodiments, the transceiver module is used to send and receive information. Optionally, the transceiver module is used to perform at least one of the communication steps such as sending and / or receiving performed by the terminal in any of the above methods, which will not be described in detail here. Optionally, the processing module is used to perform at least one of the other steps performed by the terminal in any of the above methods, which will not be described in detail here.

[0494] Figure 9a is a schematic diagram of the structure of the communication device 9100 proposed in an embodiment of this disclosure. The communication device 9100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 9100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0495] As shown in Figure 9a, the communication device 9100 includes one or more processors 9101. The processor 9101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. The communication device 9100 is used to execute any of the above methods.

[0496] In some embodiments, the communication device 9100 further includes one or more memories 9102 for storing instructions. Optionally, all or part of the memories 9102 may also be located outside the communication device 9100.

[0497] In some embodiments, the communication device 9100 further includes one or more transceivers 9103. When the communication device 9100 includes one or more transceivers 9103, the transceivers 9103 perform at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S3101, but not limited thereto), and the processor 9101 performs at least one of other steps (e.g., steps S2102, S3102, but not limited thereto).

[0498] In some embodiments, a transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc., may be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., may be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., may be used interchangeably.

[0499] In some embodiments, the communication device 9100 may include one or more interface circuits 9104. Optionally, the interface circuit 9104 is connected to the memory 9102, and the interface circuit 9104 can be used to receive signals from the memory 9102 or other devices, and can be used to send signals to the memory 9102 or other devices. For example, the interface circuit 9104 can read instructions stored in the memory 9102 and send the instructions to the processor 9101.

[0500] The communication device 9100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 9100 described in this disclosure is not limited thereto, and the structure of the communication device 9100 may not be limited by FIG. 9a. The communication device may be a standalone device or a part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0501] Figure 9b is a schematic diagram of the structure of the chip 9200 proposed in an embodiment of this disclosure. For cases where the communication device 9100 can be a chip or a chip system, please refer to the schematic diagram of the chip 9200 shown in Figure 9b, but it is not limited thereto.

[0502] Chip 9200 includes one or more processors 9201, which are used to perform any of the above methods.

[0503] In some embodiments, chip 9200 further includes one or more interface circuits 9202. Optionally, the interface circuit 9202 is connected to memory 9203, and the interface circuit 9202 can be used to receive signals from memory 9203 or other devices, and the interface circuit 9202 can be used to send signals to memory 9203 or other devices. For example, the interface circuit 9202 can read instructions stored in memory 9203 and send the instructions to processor 9201.

[0504] In some embodiments, the interface circuit 9202 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S3101, but not limited thereto), and the processor 9201 performs at least one of the other steps (e.g., steps S2102, S3102, but not limited thereto).

[0505] In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc., can be used interchangeably.

[0506] In some embodiments, chip 9200 further includes one or more memories 9203 for storing instructions. Optionally, all or part of the memories 9203 may be located outside of chip 9200.

[0507] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 9100, cause the communication device 9100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0508] This disclosure also provides a program product that, when executed by the communication device 9100, causes the communication device 9100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0509] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

Claims

1. A communication method characterized by comprising: The method is performed by a core network device, and the method comprises: sending first information to an access network device; wherein the first information is used to trigger the access network device to send second information to a terminal using a first channel, and the second information is used to indicate adjustment of a position of the terminal.

2. The method of claim 1, wherein, The first channel is a paging alert channel (PAC), and a signal-to-noise ratio of the PAC is greater than a first threshold.

3. The method of any one of claims 1-2, wherein, The sending of the first information to the access network device comprises: sending the first information to the access network device based on a first occasion; wherein the first occasion is one of the following: paging failure; paging failure and a number of times of paging failure being greater than or equal to a first threshold; paging failure within a first time period.

4. The method according to any one of claims 1 to 3, characterized in that, The method further comprises: determining whether to send the first information to the access network device based on a first strategy; wherein the first strategy is used to indicate at least one of the following: determination that an enhanced notification of starting paging for a service corresponding to paging is needed, and sending the first information to the access network device; determination that the enhanced notification of starting paging for the service corresponding to paging is not needed, and not sending the first information to the access network device.

5. The method according to any one of claims 1 to 4, characterized in that, The first information is further used to indicate at least one of the following: a number of times of repeated sending of the second information; a time interval between repeated sending of the second information.

6. The method according to any one of claims 1 to 5, characterized in that, The method further comprises: sending a paging message for the terminal to the access network device.

7. The method of claim 6, wherein, The second information is further used to indicate that the terminal sends third information to the access network device in response to the paging message, and the third information comprises at least one of the following: signaling; data.

8. The method according to any one of claims 1 to 7, characterized in that, The method further comprises: starting a first timer; determination, when the first timer expires and the third information sent by the terminal is not received, that paging of the terminal fails; and / or determination, when the third information is received within a timing time of the first timer, that paging of the terminal succeeds; the third information comprises at least one of the following: signaling; data.

9. The method of claim 8, wherein, The method further comprises: determination, when the first timer expires and the third information is not received, that paging of the terminal fails; sending fourth information to the access network device; wherein the fourth information is used to instruct the access network device to release the first channel.

10. A communication method characterized by comprising: The method is performed by an access network device, and the method comprises: receiving first information sent by a core network device; wherein the first information is used to trigger the access network device to send second information to a terminal using a first channel, and the second information is used to indicate adjustment of a position of the terminal.

11. The method of claim 10, wherein, The first channel is a paging alert channel (PAC), and a signal-to-noise ratio of the PAC is greater than a first threshold.

12. The method of any one of claims 10-11, wherein, The first information is further used to indicate at least one of the following: a number of times of repeated sending of the second information; a time interval between repeated sending of the second information.

13. The method according to any one of claims 10 to 12, characterized in that, The method further comprises: establishing the first channel based on the first information.

14. The method according to any one of claims 10 to 13, characterized in that, The method further comprises: sending the second information to the terminal using the first channel.

15. The method according to any one of claims 10 to 14, characterized in that, The method further comprises: receiving a paging message sent by the core network device; sending the paging message to the terminal.

16. The method according to any one of claims 10 to 15, characterized in that, The sending of the paging message to the terminal comprises: sending, to the terminal, the paging message using the first channel.

17. The method according to claim 15 or 16, characterized in that The second information is further used to instruct the terminal to send third information to the access network device in response to the paging message, the third information including at least one of: signaling; data.

18. The method according to any one of claims 10 to 17, characterized in that, The method further includes: receiving fourth information sent by the core network device; The fourth information is used to instruct the access network device to release the first channel.

19. The method of claim 18, wherein, The method further includes at least one of: stopping sending the second information to the terminal based on the first channel; stopping sending a paging message to the terminal based on the first channel; releasing resources associated with the first channel based on the fourth information.

20. A method of communication, comprising: The method is performed by a terminal, and the method includes: receiving second information sent by an access network device to the terminal using a first channel; The second information is used to instruct adjustment of a location of the terminal.

21. The method of claim 20, wherein, The first channel is a paging alert channel (PAC), and a signal-to-noise ratio of the PAC is greater than a first threshold.

22. The method of any one of claims 20-21, wherein, The method further includes: receiving a paging message sent by the access network device.

23. The method of claim 22, wherein, The receiving of the paging message sent by the access network device includes: receiving the paging message sent by the access network device to the terminal using the first channel.

24. The method of claim 22 or 23, wherein, The second information is further used to instruct the terminal to send third information to the access network device in response to the paging message, the third information including at least one of: signaling; data.

25. The method of claim 20, 23, or 24, wherein, The method further includes at least one of: adjusting the location of the terminal based on the second information; sending third information to a network in response to the paging message; the third information including at least one of: signaling; data.

26. A method of communication, comprising: The method includes: a core network device sending first information to an access network device; The first information is used to trigger the access network device to send second information to a terminal using a first channel, the second information being used to instruct adjustment of a location of the terminal.

27. A core network device, comprising: The core network device includes: a transceiver module configured to: send first information to an access network device; The first information is used to trigger the access network device to send second information to a terminal using a first channel, the second information being used to instruct adjustment of a location of the terminal.

28. An access network device, comprising: The access network device includes: a transceiver module configured to: receive first information sent by a core network device; The first information is used to trigger the access network device to send second information to a terminal using a first channel, the second information being used to instruct adjustment of a location of the terminal.

29. A terminal, characterized by The terminal includes: a transceiver module configured to: receive second information sent by an access network device to the terminal using a first channel; The second information is used to instruct adjustment of a location of the terminal.

30. A communication system, characterized by The communication system includes a core network device, an access network device, and a terminal; the core network device is configured to implement the method of any one of claims 1 to 9, the access network device is configured to implement the method of any one of claims 10 to 19, and the terminal is configured to implement the method of any one of claims 20 to 25.

31. A core network device, comprising: The core network device includes: one or more processors; The core network device is configured to perform the method in any one of claims 1-9.

32. An access network device, comprising: The access network device comprises: one or more processors; The access network device is configured to perform the method in any one of claims 10-19.

33. A terminal, characterized by The terminal comprises: one or more processors; The terminal is configured to perform the method in any one of claims 20-25.

34. A computer program product comprising computer programs or instructions, characterized in that, The computer program or instructions, when executed by a processor, implement the steps of the method in any one of claims 1-9, claims 10-19, or claims 20-25.

35. A storage medium characterized by The storage medium stores instructions, which, when executed on a communication device, cause the communication device to perform the method in any one of claims 1-9, claims 10-19, or claims 20-25.

Images