Paging differentiation

Abstract

Embodiments of the present disclosure relate to paging differentiation. A terminal device acquires a first paging identifier for monitoring first paging information, the first paging information scheduling a first paging message for transmission fed back by an application level, the first paging identifier being different from a second paging identifier for monitoring second paging information, the second paging information scheduling a second paging message for data transmission, and monitoring first paging information from the access network device using the first paging identifier. Paging for new packets and paging for delivery of feedback may be distinguished to avoid false wakeup of UEs that do not wait for feedback.

Description

Technical Field

[0001] Various example embodiments relate to the field of telecommunications, and in particular to methods, devices, apparatus, and computer-readable storage media for paging differentiation. Background Art

[0002] In the field of communications, in order to provide efficient and reliable solutions for utilizing wireless communication networks, related technologies are constantly evolving. Each new generation of technology faces technical challenges in handling different situations and processes required to connect and serve devices connected to wireless networks. In order to meet the growing demand for wireless data services since the deployment of the fourth generation (4G) communication system, people have been working hard to develop improved fifth generation (5G) or pre-5G communication systems. The new communication system can support various types of service applications for terminal devices, such as IoT applications.

[0003] NTN (Non-Terrestrial Network) connectivity for cellular IoT is one of the major use cases for NTN-based cellular IoT, which was initially specified in Release 17 and will be enhanced in Release 18. In these scenarios, the nature of IoT data traffic and the available features in terrestrial IoT features play an important role in defining the solution for IoT-NTN in a store-and-forward (SF) manner in discontinuous coverage scenarios. Summary of the invention

[0004] In general, example embodiments of the present disclosure provide a method, device, apparatus, and computer-readable storage medium for paging differentiation.

[0005] In a first aspect, a terminal device is provided. The terminal device includes at least one processor and at least one memory storing instructions. When the instructions are executed by the at least one processor, the terminal device at least: obtains a first paging identifier for monitoring first paging information, the first paging information is a transmission scheduling first paging message of application-level feedback, the first paging identifier is different from a second paging identifier for monitoring second paging information, the second paging information is a data transmission scheduling second paging message; and uses the first paging identifier to monitor the first paging information from the access network device.

[0006] In a second aspect, an access network device is provided. The access network device includes at least one processor and at least one memory storing instructions. When the instructions are executed by the at least one processor, the access network device at least: obtains a first paging identifier for scrambling a first paging information, the first paging information is a transmission scheduling first paging message fed back to the application level of a terminal device, the first paging identifier is different from a second paging identifier for scrambling a second paging information, the second paging information is a data transmission scheduling second paging message to the terminal device; and sends the first paging information scrambled by the first paging identifier to the terminal device.

[0007] In a third aspect, a core network device is provided. The core network device includes at least one processor and at least one memory storing instructions. When the instructions are executed by the at least one processor, the core network device at least: determines a first paging identifier for a terminal device to monitor a first paging information, the first paging information being a transmission scheduling first paging message of application-level feedback, the first paging identifier being different from a second paging identifier for a terminal device to monitor a second paging information, the second paging information being a data transmission scheduling second paging message; and sends the first paging identifier to an access network device to which the terminal device is to be connected.

[0008] In a fourth aspect, a method implemented at a terminal device is provided. The method includes: obtaining, at the terminal device, a first paging identifier for monitoring first paging information, the first paging information being a transmission scheduling first paging message of application-level feedback, the first paging identifier being different from a second paging identifier for monitoring second paging information, the second paging information being a data transmission scheduling second paging message; and using the first paging identifier to monitor the first paging information from the access network device.

[0009] In a fifth aspect, a method implemented at an access network device is provided. The method includes: obtaining, at the access network device, a first paging identifier used to scramble first paging information, the first paging information being a transmission scheduling first paging message fed back to the application level of a terminal device, the first paging identifier being different from a second paging identifier used to scramble second paging information, the second paging information being a data transmission scheduling second paging message to the terminal device; and sending the first paging information scrambled by the first paging identifier to the terminal device.

[0010] In a sixth aspect, a method implemented at a core network device is provided. The method includes: determining, at the core network device, a first paging identifier for a terminal device to monitor first paging information, the first paging information being a transmission scheduling first paging message of application-level feedback, the first paging identifier being different from a second paging identifier for a terminal device to monitor second paging information, the second paging information being a data transmission scheduling second paging message; and sending the first paging identifier to an access network device to which the terminal device is to be connected.

[0011] In the seventh aspect, a device is provided, which includes: a component for obtaining a first paging identifier for monitoring first paging information at a terminal device, the first paging information being a transmission scheduling first paging message of application-level feedback, the first paging identifier being different from a second paging identifier for monitoring second paging information, the second paging information being a data transmission scheduling second paging message; and a component for using the first paging identifier to monitor the first paging information from an access network device.

[0012] In an eighth aspect, a device is provided, comprising: a component for acquiring, at an access network device, a first paging identifier for scrambling first paging information, the first paging information being a transmission scheduling first paging message for application-level feedback to a terminal device, the first paging identifier being different from a second paging identifier for scrambling second paging information, the second paging information being a data transmission scheduling second paging message to the terminal device; and a component for sending the first paging information scrambled by the first paging identifier to the terminal device.

[0013] In a ninth aspect, a device is provided, comprising: a component for determining, at a core network device, a first paging identifier for a terminal device to monitor first paging information, the first paging information being a transmission scheduling first paging message for application-level feedback, the first paging identifier being different from a second paging identifier for the terminal device to monitor second paging information, the second paging information being a data transmission scheduling second paging message; and a component for sending the first paging identifier to an access network device to which the terminal device is to be connected.

[0014] In a tenth aspect, a non-transitory computer-readable medium is provided, which includes program instructions, and when the program instructions are executed by a device, the device at least executes the method of any one of the fourth to sixth aspects above.

[0015] In an eleventh aspect, a non-transitory computer-readable medium is provided, the non-transitory computer-readable medium including program instructions stored thereon, the program instructions being used to execute the method of any one of the fourth to sixth aspects above.

[0016] In a twelfth aspect, a computer program is provided, which includes instructions, which when executed by an apparatus, causes the apparatus to at least: obtain a first paging identifier for monitoring a first paging information, the first paging information being a transmission scheduling first paging message of application-level feedback, the first paging identifier being different from a second paging identifier for monitoring a second paging information, the second paging information being a data transmission scheduling second paging message; and use the first paging identifier to monitor a first paging information from an access network device.

[0017] In a thirteenth aspect, a computer program is provided, which includes instructions, which when executed by an apparatus, causes the apparatus to at least: obtain a first paging identifier for scrambling a first paging information, the first paging information being a transmission scheduling first paging message for application-level feedback to a terminal device, the first paging identifier being different from a second paging identifier for scrambling a second paging information, the second paging information being a data transmission scheduling second paging message to the terminal device; and send the first paging information scrambled by the first paging identifier to the terminal device.

[0018] In a fourteenth aspect, a computer program is provided, which includes instructions, which when executed by an apparatus, causes the apparatus to at least: determine a first paging identifier for a terminal device to monitor a first paging information, the first paging information being a transmission scheduling first paging message for application-level feedback, the first paging identifier being different from a second paging identifier for a terminal device to monitor a second paging information, the second paging information being a data transmission scheduling second paging message; and send the first paging identifier to an access network device to which the terminal device is to be connected.

[0019] In a fifteenth aspect, a terminal device is provided. The terminal device includes an acquisition circuit system configured to acquire a first paging identifier for monitoring first paging information, the first paging information being a transmission scheduling first paging message of application-level feedback, the first paging identifier being different from a second paging identifier for monitoring second paging information, the second paging information being a data transmission scheduling second paging message; and a monitoring circuit system configured to use the first paging identifier to monitor the first paging information from an access network device.

[0020] In a sixteenth aspect, an access network device is provided. The access network device includes an acquisition circuit system configured to acquire a first paging identifier for scrambling a first paging information, the first paging information being a transmission scheduling first paging message fed back to an application level of a terminal device, the first paging identifier being different from a second paging identifier for scrambling a second paging information, the second paging information being a data transmission scheduling second paging message to the terminal device; and a sending circuit system configured to send the first paging information scrambled with the first paging identifier to the terminal device.

[0021] In a seventeenth aspect, a core network device is provided. The core network device includes a determining circuit system configured to determine a first paging identifier for a terminal device to monitor first paging information, the first paging information being a transmission scheduling first paging message of application-level feedback, the first paging identifier being different from a second paging identifier for the terminal device to monitor second paging information, the second paging information being a data transmission scheduling second paging message; and a sending circuit system configured to send the first paging identifier to an access network device to which the terminal device is to be connected.

[0022] It should be understood that the invention summary is not intended to identify the key or essential features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Some example embodiments will now be described with reference to the accompanying drawings, in which:

[0024] Figure 1A illustrates an example communication network in which embodiments of the present disclosure may be implemented;

[0025] Figure 1B illustrates example scenarios in which some embodiments of the present disclosure may be implemented;

[0026] Figure 2 An example of a method according to some embodiments of the present disclosure is illustrated;

[0027] Figure 3 A flowchart illustrating a terminal device receiving application-level feedback from an access network device according to some embodiments of the present disclosure is illustrated;

[0028] Figure 4 A flowchart illustrating a terminal device receiving application-level feedback from an access network device according to some other embodiments of the present disclosure is shown;

[0029] Figure 5 illustrates a message sequence chart for paging differentiation of SF paging messages and enhancement of group-based application feedback notification;

[0030] Figure 6 A flowchart illustrating an example method implemented at a terminal device according to some embodiments of the present disclosure is illustrated;

[0031] Figure 7 A flowchart illustrating an example method implemented at an access network device according to some embodiments of the present disclosure is illustrated;

[0032] Figure 8A flowchart illustrating an example method implemented at a core network device according to some embodiments of the present disclosure is illustrated;

[0033] Fig. 9 illustrates a simplified block diagram of an apparatus suitable for implementing embodiments of the present disclosure; and

[0034] Fig.10 A block diagram of an example computer-readable medium is illustrated in accordance with some embodiments of the present disclosure.

[0035] Throughout the drawings, the same or similar reference numerals refer to the same or similar elements. DETAILED DESCRIPTION

[0036] The principles of the present disclosure will now be described with reference to some example embodiments. It should be understood that these embodiments are described only for illustrative purposes and help those skilled in the art to understand and implement the present disclosure, and do not represent any limitation on the scope of the present disclosure. The disclosure described herein can be implemented in various other ways except for the way described below.

[0037] In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

[0038] In this disclosure, references to "one embodiment," "an embodiment," and "an example embodiment" indicate that the described embodiment may include a particular feature, structure, or characteristic, but not every embodiment must include the particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it should be noted that, whether or not explicitly described, it is within the knowledge of a person skilled in the art to affect such feature, structure, or characteristic in conjunction with other embodiments.

[0039] It should be understood that although the terms "first" and "second" etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, without departing from the scope of the example embodiments, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element. As used herein, the term "and / or" includes any and all combinations of one or more of the listed terms.

[0040] The terms used herein are only used to describe specific embodiments, and are not intended to limit exemplary embodiments. The singular forms "a", "an" and "the" used herein also include plural forms, unless the context clearly states otherwise. It is further understood that the terms "comprises", "comprising", "has", "having", "includes" and / or "including" specify the presence of the features, elements and / or components when used herein, but do not exclude the presence or addition of one or more other features, elements, components and / or their combinations. As used herein, "at least one of the following: <list of two or more elements>" and "at least one of the lists of <two or more elements>" and similar wording (wherein the list of two or more elements is connected by "and" or "or") refer to at least any one of these elements, or at least any two or more of these elements, or at least all of these elements.

[0041] As used in this application, the term "circuitry" may refer to one, more, or all of the following:

[0042] (a) a pure hardware circuit implementation (such as an implementation using only analog and / or digital circuitry), and

[0043] (b) a combination of hardware circuitry and software such as (where applicable):

[0044] (i) a combination of analog and / or digital hardware circuits and software / firmware, and

[0045] (ii) any portion of hardware processor(s) (including digital signal processor(s)) with software, software and memory(s) that work together to enable a device (such as a mobile phone or server) to perform various functions), and

[0046] (c) Hardware circuit(s) and / or processor(s), such as microprocessor(s) or portion(s) of microprocessor(s), that require software (e.g., firmware) to operate, but which may not be present when the software is not required for operation.

[0047] This definition of circuitry applies to all uses of the term in this application, including in any claims. As another example, as used in this application, the term circuitry also covers an implementation of only a hardware circuit or processor (or multiple processors) or a portion of a hardware circuit or processor and its accompanying software and / or firmware. For example, if applicable to a particular claim element, the term circuitry also covers a baseband integrated circuit or processor integrated circuit for a mobile device, or a similar integrated circuit in a server, cellular network device, or other computing or network device.

[0048] As used herein, the term "communication network" refers to a network that complies with any suitable communication standard, such as long term evolution (LTE), advanced LTE (LTE-A), wideband code division multiplexing (WCDMA), high speed packet access (HSPA), narrowband Internet of Things (NB-IoT), etc. In addition, the communication between the terminal equipment and the network equipment in the communication network can be performed according to any suitable generation of communication protocol, including but not limited to the first generation (1G), second generation (2G), 2.5G, 2.75G, third generation (3G), fourth generation (4G), 4.5G, future fifth generation (5G) communication protocol, and / or any other protocol currently known or to be developed in the future. The embodiments of the present disclosure can be applied to various communication systems. In view of the rapid development of communication, there will certainly be communication technologies and systems that can be used to embody future types of the present disclosure. It should not be regarded as limiting the scope of the present disclosure to the above-mentioned system.

[0049] As used herein, the term "network device" refers to a node in a communication network, via which a terminal device accesses the network and receives services from the network. Depending on the terminology and technology applied, a network device may refer to a base station (BS) or an access point (AP), such as a NodeB (NodeB or NB), an evolved NodeB (eNodeB or eNB), a NR NB (also known as a gNB), a remote radio unit (RRU), a radio head (RH), a remote radio head (RRH), a relay, a low-power node (such as a femto, a pico), etc.

[0050] The term "terminal device" refers to any terminal device capable of wireless communication. As an example and not limitation, the terminal device may also be referred to as a communication device, a user equipment (UE), a subscriber station (SS), a portable subscriber station, a mobile station (MS) or an access terminal (AT). The terminal device may include, but is not limited to, a mobile phone, a cellular phone, a smart phone, a voice over IP (VoIP) phone, a wireless local loop phone, a tablet computer, a wearable terminal device, a personal digital assistant (PDA), a portable computer, a desktop computer, an image capture terminal device (such as a digital camera), a game terminal device, a music storage and playback device, a vehicle-mounted wireless terminal device, a wireless endpoint, a mobile station, a laptop embedded device (LEE), a laptop mounted device (LME), a USB dongle, a smart device, a wireless customer premises equipment (CPE), an Internet of Things (IoT) device, a watch or other wearable device, a head mounted display (HMD), a vehicle, a drone, medical equipment and applications (e.g., remote surgery), industrial equipment and applications (e.g., robots and / or other wireless devices operating in industrial and / or automated processing chain environments), consumer electronic devices, equipment operating on commercial and / or industrial wireless networks, etc. In the following description, the terms "terminal device", "communication device", "terminal", "user equipment" and "UE" may be used interchangeably.

[0051] NTN connectivity for cellular IoT is one of the main use cases for cellular IoT over NTN, which was initially specified in Release 17 and will be enhanced in Release 18. In these scenarios, the nature of IoT data traffic and the available features in terrestrial IoT features play an important role in defining the solution for IoT-NTN in a store-and-forward manner in discontinuous coverage scenarios.

[0052] The following IoT features already defined in the current specification are enhanced for NTN connections with discontinuous coverage, where the NW implements the store and forward concept, Rel-14 NB-IoT / eMTC supports the Early Data Transfer (EDT) feature, where a single user packet is sent in the RACH procedure, and no RRC connection is established for EDT, thus achieving an energy-saving process for small data transmission. For the EDT variant based on user packet security, one solution is that the EDT packet uses the AS security key, and the UE and AS retain the AS security context when entering the idle state. Another solution is that the EDT packet uses the NAS security key, and the ENB does not intercept the packet.

[0053] NTN networks operating in store-and-forward mode with discontinuous coverage are a new problem space. 3GPP intends to handle this situation in 3GPP-Rel-19. In conventional paging (TS 36.304), the UE will monitor the paging downlink control information (DCI) scrambled with P-RNTI (Paging RNTI). If the paging DCI scrambled with P-RNTI is detected, the UE will monitor the corresponding scheduled resources on the physical downlink shared channel (PDSCH). The data on PDSCH is called a paging message. The message contains a list of UE IDs. If the UE detects its own UE ID, it will initiate a connection establishment.

[0054] In some schemes, UEs in the NTN-SF network may buffer application packets and stop retransmission until they get application feedback for earlier transmissions, but these schemes only apply to packets that require confirmation (confirmable COAP, TCP-ACK). In some other schemes, depending on the duration of the GW connection and the application server and the load of pending messages, the GW can provide responses to some UEs, but some UEs may need to wait longer.

[0055] A technique is needed to enhance small data transmission of an NTN network operating in SF mode, where all UEs waiting for feedback do not need to resume connection the next time they receive application feedback, and paging for new packets and paging for delivery of feedback can be distinguished to avoid false wake-up of UEs not waiting for feedback.

[0056] The principles and embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. Figure 1A , which illustrates an example communication system 100 in which embodiments of the present disclosure may be implemented. Figure 1A As shown, Figure 1A An example system 100 is illustrated in which some example embodiments of the present disclosure may be implemented. The system 100 may include a terminal device 110 and a satellite 120. Figure 1A As shown, system 100 may include an NTN including a satellite 120 in communication with a terminal device 110 . Figure 1A The device 120 - 1 shown may be a gateway (GW) device or a base station.

[0057] In some embodiments, device 120-1 may be BS 120-1 (such as a gNB). Satellite 120 may communicate with terminal device 110 via a service link or a wireless interface, and satellite 120 may communicate with BS 120-1 via a feeder link or a wireless interface. In some embodiments, satellite 120 may operate as a passive or transparent network relay node between terminal device 110 and BS 120-1. As shown in FIG. 1 , BS 120-1 may also communicate with core network (CN) device 130, for example, via a gateway device. In some other embodiments, device 120-1 may be a gateway device 120-1. In some embodiments, satellite 120 may communicate with a gateway device 120-1 associated with CN device 130.

[0058] In some other embodiments, the satellite 120 may operate as another BS (such as another gNB) and may be referred to as an access network device 120, and the CN device 130 may be referred to as a core network device 130. In the communication system, UL refers to a link in the direction from the terminal device 110 to the access network device 120, and DL refers to a link in the direction from the access network device 120 to the terminal device 110. The access network device 120 also communicates with the core network device 130, for example, the access network device 120 may obtain feedback from the core network device 130 for sending to the terminal device 110. In some scenarios, the connection between the access network device 120 and the terminal device 110 and the connection between the access network device 120 and the core network device 130 do not exist at the same time.

[0059] It should be understood that the number of access network devices 120 and terminal devices 110 is only for illustrative purposes and does not represent any limitation. The system 100 may include any suitable number of access network devices 120 and terminal devices 110 suitable for implementing the embodiments of the present disclosure. Although not shown, it should be understood that one or more terminal devices 110 may be located in a cell.

[0060] The communication in the communication system 100 can be implemented according to any appropriate (multiple) communication protocols, including but not limited to first generation (1G), second generation (2G), third generation (3G), fourth generation (4G) and fifth generation (5G) cellular communication protocols, wireless local area network communication protocols (such as Institute of Electrical and Electronics Engineers (IEEE) 802.11, etc.), and / or any other protocol currently known or to be developed in the future. In addition, the communication can utilize any appropriate wireless communication technology, including but not limited to: code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), frequency division duplex (FDD), time division duplex (TDD), multiple input multiple output (MIMO), orthogonal frequency division multiplexing (OFDM), discrete Fourier transform spread spectrum OFDM (DFT-s-OFDM) and / or any other technology currently known or to be developed in the future.

[0061] Figure 1B The diagram illustrates an example scenario in which some embodiments of the present disclosure may be implemented. When non-terrestrial base stations provide cellular coverage depending on the coverage area and the number of satellites, the coverage situation for the UE will be discontinuous. This also applies to NTN GNB / ENB connections with GW (Gateway) / CN (Core Network) elements if the NTN is deployed as a 'GNB' in satellite and the number of GWs is limited. In this case, due to the possibility of UE and GW connections at different points in time for satellites, storage and forwarding of data packets will be required. This situation is Figure 1B In the figure, such as Figure 1B As shown, when the NTN cell is located at position 1, the NTN-GNB establishes a connection with the MME / SGW but disconnects from the IoT device. As the NTN cell moves, at position 2, the NTN-GNB disconnects from the MME (Mobility Management Entity) / SGW but establishes a connection with the IoT device.

[0062] Figure 2 An example of a method according to some embodiments of the present disclosure is illustrated. Figure 2As shown, according to the example of method 200, the terminal device 110 can obtain (210) a first paging identifier 205 for monitoring the first paging information 215, which is a transmission scheduling first paging message for application-level feedback. The first paging identifier is different from the second paging identifier used by the terminal device 110 to monitor the second paging information, which is a data transmission scheduling second paging message. On the core network device 130 side, the core network device 130 can determine (220) the first paging identifier 205. The core network device 130 can send (230) the first paging identifier 205 to the access network device 120 to which the terminal device 110 is to be connected. Therefore, the access network device 120 can obtain (240) the first paging identifier 205 for scrambling the first paging information 215, which is a transmission scheduling first paging message for application-level feedback to the terminal device 110. The access network device 120 may send (260) the first paging information 215 scrambled with the first paging identifier 205 to the terminal device 110. The terminal device 110 may monitor (270) the first paging information 215 from the access network device 120 using the first paging identifier 205.

[0063] In this way, the access network device 120 and the terminal device 110 can distinguish between paging for new data and application-level feedback, which reduces the paging probability and energy consumption of the terminal device 110.

[0064] In some embodiments, in order to obtain the first paging identifier, the access network device 120 may select one of a group of paging identifiers as the first paging identifier based on at least one of a cell identifier or a satellite identifier associated with a cell to which the terminal device 110 was last connected. For example, the first paging identifier selection at the target cell may be determined based on a hash function from a first paging identifier group, which is based on the last connected cell (or satellite) of the terminal device 110 to be paged.

[0065] In some embodiments, to obtain the first paging identifier, the terminal device 110 may determine at least one of a cell identifier or a satellite identifier associated with a cell to which the terminal device 110 sends application-level data corresponding to the application-level feedback, and determine the first paging identifier based on the second paging identifier and at least one of the cell identifier or the satellite identifier. For example, if the terminal device 110 has transmitted uplink data and expects application-level feedback, the terminal device 110 may automatically monitor the first paging identifier associated with the last connected cell (or satellite). The association may be based on a mapping from a cell identifier (or satellite identifier) ​​to a first paging identifier, for example, the first paging identifier is equal to the second paging identifier minus the cell identifier.

[0066] In some embodiments, the terminal device 110 may obtain the first paging identifier from pre-programmed information. For example, the first paging identifier may be a hard-coded value that is different from the second paging identifier. The hard-coded value may be programmed into the terminal device 110 during the manufacturing process.

[0067] In some embodiments, the terminal device 110 may obtain the first paging identifier from the access network device 120. The access network device 120 may receive the first paging identifier from the core network device 130 associated with the terminal device 110.

[0068] On the core network device 130 side, in some embodiments, in order to determine the first paging identifier, the core network device 130 can determine at least one of a cell identifier or a satellite identifier associated with the cell to which the terminal device 110 was last connected, and determine the first paging identifier based on the second paging identifier and at least one of the cell identifier or the satellite identifier.

[0069] In some embodiments, the first paging identifier comprises a store-and-forward paging radio network temporary identifier (SF-P-RNTI). In some embodiments, the second paging identifier comprises a paging radio network temporary identifier (P-RNTI). In some embodiments, the PCI may be an example of a cell identifier, and the SAT ID may be an example of a satellite identifier.

[0070] On the core network device 130 side, in some embodiments, the core network device 130 can generate a first paging message including a temporary identifier specific to the terminal device 110 for receiving application-level feedback, and send the first paging message to the access network device 120 for sending to the terminal device 110.

[0071] In some embodiments, the terminal device 110 may receive first paging information from the access network device 120 using the first paging identifier, and receive a first call message from the access network device 120 based on the first paging information.

[0072] Figure 3 A flowchart 300 is shown in which a terminal device 110 receives application-level feedback from an access network device 120 according to some embodiments of the present disclosure. Figure 3 As shown, at box 310, the terminal device 110 may obtain a temporary identifier specific to the terminal device 110 for receiving application-level feedback. At box 320, the terminal device 110 may determine whether the first paging message includes a temporary identifier specific to the terminal device 110. At box 330, the terminal device 110 may establish a connection with the access network device 120 based on determining that the first paging message includes the temporary identifier for receiving application-level feedback.

[0073] In some embodiments, the terminal device 110 may acquire the temporary identifier and the first paging identifier when the connection between the access network device 120 and the terminal device 110 is released.

[0074] In some embodiments, the access network device 120 may determine to release the connection between the access network device 120 and the terminal device 110 , and send a connection release message including at least one of the temporary identifier and the first paging identifier to the terminal device 110 .

[0075] In some embodiments, the access network device 120 may receive a first paging message from the core network device 130 associated with the terminal device 110 , where the first paging message includes a temporary identifier specific to the terminal device 110 for receiving application-level feedback.

[0076] In some embodiments, the access network device 120 may determine that the application-level feedback is for the terminal device 110 , and based on determining that the application-level feedback is for the terminal device 110 , generate a first paging message to include a temporary identifier specific to the terminal device 110 for receiving the application-level feedback.

[0077] In some embodiments, the terminal device 110 may acquire the temporary identifier by receiving the temporary identifier from a previous access network device 120 to which the terminal device 110 was previously connected. In some embodiments, the temporary identifier comprises a store-and-forward radio network temporary identifier (SF-RNTI).

[0078] In some embodiments, there are multiple terminal devices 110 waiting for application-level feedback, and the flowchart of the terminal device 110 receiving application-level feedback from the access network device 120 can be as follows: Figure 4 Reference Figure 4 At block 410, the terminal device 110 may receive first paging information from the access network device 120 using the first paging identifier. At block 420, the terminal device 110 may determine whether the application-level feedback is for the terminal device 110 based on a bitmap in the first paging information, each bit of the bitmap indicating at least one terminal device among the plurality of terminal devices 110. At block 430, the terminal device 110 may establish a connection with the access network device 120 for receiving the application-level feedback based on determining that the application-level feedback is for the terminal device 110.

[0079] On the access network device 120 side, in some embodiments, the access network device 120 may determine that the first paging information will schedule the first paging message for multiple transmissions of application-level feedback to multiple terminal devices 110, and the terminal device 110 may be one of the multiple terminal devices 110. The access network device 120 may generate the first paging information to include a bitmap for indicating the terminal device 110, each bit of the bitmap indicating one of the multiple terminal devices 110.

[0080] In some embodiments, the access network device 120 may be a non-terrestrial network device. In some embodiments, the terminal device 110 may be an IoT UE. In the basic scenarios of some embodiments of the present disclosure, the attributes of IoT services and features for enhancing performance include, for example, IoT data services, and small data transmissions with few transmission packets, and application ACK is optional, in addition, periodic data transmission is not time-critical, and urgent transmissions (abnormal reports) need to reach the application within a certain duration (e.g., 10 seconds - a requirement of CIoT).

[0081] In order to distinguish between paging for delivering application-level ACK (or general application-level information / feedback) and paging for new data transmission, in some embodiments, the UE may be assigned a different RNTI (Radio Network Temporary Identifier) ​​to use when monitoring paging DCI (Downlink Control Information). Alternatively or additionally, the UE may be assigned a different RNTI to use when monitoring paging messages (compared to the traditional use of P-RNTI and UE ID). When paging the UE with application-level feedback, the network uses (multiple) different RNTIs.

[0082] In some embodiments, the SF-P-RNTI (store and forward paging RNTI) may be allocated based on the last connected cell (or satellite). This will enable target cell paging to distinguish between application level feedback and paging belonging to different new data transmissions. The SF-P-RNTI selection at the target cell will be determined based on a hash function from a group of SF-P-RNTIs based on the last connected cell (or satellite) of the UE to be paged.

[0083] In some embodiments, alternatively, if the UE has transmitted uplink data and is expecting application-level feedback, the UE will automatically monitor the SF-P-RNTI associated with the last connected cell (or satellite). The association can be based on a mapping from PCI (or SAT ID) to SF-P-RNTI, for example SF-P-RNTI=P-RNTI-PCI.

[0084] In some embodiments, on the CN (e.g., core network device 130) side, the MME can indicate to the RAN (Radio Access Network) what SF-P-RNTI to use for a particular UE based on the MME knowing which cell / satellite received the original uplink data. In these embodiments, the SF-RNTI (store and forward RNTI) based on the last connected cell is used for RAN paging differentiation of the stored and forwarded application-level feedback packets.

[0085] In some embodiments, (multiple) RNTIs may be fixed values ​​configured by the NW (network). Upon RRC (Radio Resource Control) connection release, a new paging identifier (SF-RNTI) uniquely different from the P-RNTI is allocated by the RAN to the UE waiting for application-level information in the next (satellite) connection opportunity. The CN's SGW indicates a flag in the downlink notification to the MME to indicate that these packets are responses to packets initiated by the UE (i.e., application-level feedback). The MME shall include this flag in the paging message. The UE shall monitor the SF-RNTI in the paging message to determine whether there is application-level feedback.

[0086] refer to Figure 5 , which is an enhanced message sequence chart for paging differentiation of SF paging messages and group-based application feedback notification. Figure 5 As shown, an IoT UE (which may be referred to as UE for short, an example of terminal device 110) may establish (5010) an RRC connection with an NTN-RAN (an example of access network device 120). After the RRC connection is established, the UE and NTN-RAN may complete (5020) uplink transmission without downlink transmission, and then the RRC connection is released (5030), and the UE will wait for an application-level ACK (i.e., app-ack or application Ack) for a downlink transmission corresponding to the uplink transmission. The NTN-RAN sends a connection release message to the UE, and the connection release message may include at least one of an SF-RNTI and a SF-P-RNTI. The SF-RNTI is used to resume the RRC connection to obtain the app-ack.

[0087] When the UE next wakes up, it monitors the search space for "application-level feedback" using the SF-P-RNTI. The UE may wake up (5040) in the next connection window and monitor (5050) the paging search space using the SF-P-RNTI. The UE may monitor the SF-RNTI in the paging message to determine if there is application-level feedback. The indication of UE-specific information is used for paging differentiation to receive application-level feedback.

[0088] On the NTN-RAN side, the NTN-RAN may obtain (5060) an Application Ack when the GW is connected, and determine (5070) the UE that needs to resume the RRC connection.

[0089] In some embodiments, (multiple) RNTIs may be assigned to the UE based on the last served cell / satellite. The NTN-RAN may use a different P-RNTI (i.e., SF-P-RNTI) than the legacy P-RNTI to issue a PDCCH (Physical Downlink Control Channel) to trigger connection establishment for pending application level feedback. In some embodiments, the NTN-RAN may send (5080) a PDCCH to page the pending downlink (using the SF-RNTI) and send (5090) a data notification bitmap in the PDCCH or a list of SF-RNTIs in the PDSCH (Physical Downlink Shared Channel). In some embodiments, the DCI content may include a 'data notification' bitmap or a downlink grant giving a list of SF-RNTIs that need to resume the RRC connection.

[0090] On the UE side, the UE may check (5100) its data notification group based on the SF-RNTI, for example, when two SF-RNTIs are mapped to the same PO (paging occasion) based on their S-TMSI, the SF-RNTI is used to identify (5110) the position within the bitmap of the 'data notification' sent in the PDCCH (paging DCI) or PDSCH (paging message). The SF-RNTI is modulo (mod) the number of bits for this purpose, in some embodiments, the bit position = SF-RNTI mod number of bits. If there is a 'data notification' for the UE in the PDCCH or PDSCH, the UE resumes (5120) the connection to obtain application-level feedback.

[0091] In this way, a paging that enables the network and UE to distinguish between new data and application-level feedback is achieved. This reduces the paging probability and UE energy consumption. In addition, the SF-P-RNTI enables the cell to indicate whether new data or application-level feedback is ready for transmission based on past transmissions to a specific cell linked to the SF-P-RNTI. In some embodiments, the paging occasion (PO) used for traditional RRC idle mode paging can also be used for paging of application-level feedback.

[0092] Figure 6A flow chart of an example method 600 implemented at a terminal device 110 according to some embodiments of the present disclosure is shown. At block 610, the terminal device 110 may obtain a first paging identifier for monitoring first paging information, the first paging information being a transmission scheduling first paging message of application-level feedback. The first paging identifier is different from a second paging identifier for monitoring second paging information, the second paging information being a transmission scheduling second paging message. At block 620, the terminal device 110 may use the first paging identifier to monitor the first paging information from the access network device 120.

[0093] In some embodiments, the terminal device 110 obtains the first paging identifier by: determining at least one of a cell identifier or a satellite identifier associated with a cell to which the terminal device sends application-level data corresponding to the application-level feedback; and determining the first paging identifier based on the second paging identifier and at least one of the cell identifier or the satellite identifier.

[0094] In some embodiments, the terminal device 110 obtains the first paging identifier by obtaining the first paging identifier from preprogrammed information.

[0095] In some embodiments, the method 600 further includes receiving first paging information from the access network device 120 using the first paging identifier; and receiving a first paging message from the access network device 120 based on the first paging information.

[0096] In some embodiments, method 600 also includes obtaining a temporary identifier specific to the terminal device for receiving application-level feedback; determining whether one of the first paging message and the second paging message includes a temporary identifier specific to the terminal device; and based on determining that the first paging message includes the temporary identifier, establishing a connection with the access network device 120 for receiving application-level feedback.

[0097] In some embodiments, the terminal device 110 obtains the temporary identifier by receiving the temporary identifier from a previous access network device 120 to which the terminal device was last connected.

[0098] In some embodiments, method 600 also includes receiving a first paging message from an access network device 120 using a first paging identifier; determining whether the application-level feedback is for a terminal device based on a bitmap in the first paging message, each bit of the bitmap indicating at least one terminal device among a plurality of terminal devices; and based on determining that the application-level feedback is for the terminal device, establishing a connection with the access network device 120 for receiving application-level feedback.

[0099] In some embodiments, method 600 also includes at least one of the following: the first paging identifier includes a store and forward paging radio network temporary identifier (SF-P-RNTI); the second paging identifier includes a paging radio network temporary identifier (P-RNTI); or the temporary identifier includes a store and forward radio network temporary identifier (SF-RNTI).

[0100] Figure 7 A flow chart of an example method 700 implemented at an access network device 120 according to some embodiments of the present disclosure is shown. At box 710, the access network device 120 may obtain a first paging identifier for scrambling first paging information, the first paging information being a transmission scheduling first paging message for application-level feedback to the terminal device 110. The first paging identifier is different from a second paging identifier for scrambling second paging information, the second paging information being a data transmission scheduling second paging message to the terminal device. At box 720, the access network device 120 may send the first paging information scrambled with the first paging identifier to the terminal device 110.

[0101] In some embodiments, the access network device 120 obtains the first paging identifier by selecting a paging identifier from a group of paging identifiers as the first paging identifier based on at least one of a cell identifier or a satellite identifier associated with a cell to which the terminal device was last connected.

[0102] In some embodiments, the access network device 120 obtains the first paging identifier by receiving the first paging identifier from the core network device 130 associated with the terminal device.

[0103] In some embodiments, method 700 also includes determining that the application-level feedback is for the terminal device; and based on determining that the application-level feedback is for the terminal device, generating a first paging message to include a temporary identifier specific to the terminal device for receiving the application-level feedback.

[0104] In some embodiments, the method 700 further includes determining to release the connection between the access network device 120 and the terminal device 110; and sending a connection release message to the terminal device 110, the connection release message including at least one of a temporary identifier and a first paging identifier.

[0105] In some embodiments, the method 700 further includes receiving a first paging message from a core network device 130 associated with the terminal device 110 , the first paging message including a temporary identifier specific to the terminal device 110 for receiving application-level feedback.

[0106] In some embodiments, method 700 also includes determining that the first paging information will schedule the first paging message for multiple transmissions of application-level feedback to multiple terminal devices 110, where the terminal device 110 is one of the multiple terminal devices; and generating the first paging information to include a bitmap for indicating the terminal device 110, each bit of the bitmap indicating one of the multiple terminal devices 110.

[0107] In some embodiments, at least one of the following: the first paging identifier includes a store-and-forward paging radio network temporary identifier (SF-P-RNTI); the second paging identifier includes a paging radio network temporary identifier (P-RNTI); or the temporary identifier includes a store-and-forward radio network temporary identifier (SF-RNTI).

[0108] In some embodiments, the access network equipment 120 is a non-terrestrial network equipment.

[0109] Figure 8 A flowchart of an example method 900 implemented at a core network device 130 according to some embodiments of the present disclosure is shown. At box 810, the core network device 130 may determine a first paging identifier for a terminal device to monitor a first paging information, which is a transmission scheduling first paging message for application-level feedback. The first paging identifier is different from a second paging identifier for a terminal device 110 to monitor a second paging information, which is a data transmission scheduling second paging message. At box 820, the core network device 130 may send the first paging identifier to the access network device 120 to which the terminal device 110 is to be connected.

[0110] In some embodiments, the core network device 130 determines the first paging identifier by: determining at least one of a cell identifier or a satellite identifier associated with a cell to which the terminal device was last connected; and determining the first paging identifier based on the second paging identifier and at least one of the cell identifier or the satellite identifier.

[0111] In some embodiments, the method 800 further includes generating a first paging message including a temporary identifier specific to the terminal device 110 for receiving application-level feedback; and sending the first paging message to the access network device 120 for sending to the terminal device 110 .

[0112] In some embodiments, at least one of the following: the first paging identifier includes a store-and-forward paging radio network temporary identifier (SF-P-RNTI); the second paging identifier includes a paging radio network temporary identifier (P-RNTI); or the temporary identifier includes a store-and-forward radio network temporary identifier (SF-RNTI).

[0113] In some embodiments, an apparatus capable of performing any of the methods 600 (e.g., terminal device 110) may include a component for performing the corresponding steps of the method 600. The component may be implemented in any suitable form. For example, the component may be implemented in a circuit system or a software module.

[0114] In some embodiments, the apparatus includes a component for acquiring, at a terminal device 110, a first paging identifier for monitoring first paging information, wherein the first paging information is a transmission scheduling first paging message of application-level feedback, and the first paging identifier is different from a second paging identifier for monitoring second paging information, wherein the second paging information is a data transmission scheduling second paging message; and a component for using the first paging identifier to monitor the first paging information from the access network device 120.

[0115] In some embodiments, the means for acquiring the first paging identifier includes: a means for determining at least one of a cell identifier or a satellite identifier associated with a cell to which the terminal device sends application-level data corresponding to the application-level feedback; and a means for determining the first paging identifier based on the second paging identifier and at least one of the cell identifier or the satellite identifier.

[0116] In some embodiments, means for obtaining the first paging identifier includes means for obtaining the first paging identifier from preprogrammed information.

[0117] In some embodiments, the apparatus further comprises means for receiving first paging information from the access network device using the first paging identifier; and means for receiving a first paging message from the access network device based on the first paging information.

[0118] In some embodiments, the apparatus further includes a component for obtaining a temporary identifier specific to a terminal device for receiving application-level feedback; a component for determining whether one of a first paging message and a second paging message includes a temporary identifier specific to a terminal device; and a component for establishing a connection with an access network device for receiving application-level feedback based on determining that the first paging message includes the temporary identifier.

[0119] In some embodiments, the means for acquiring the temporary identifier comprises means for receiving the temporary identifier from a previous access network device to which the terminal device was last connected.

[0120] In some embodiments, the apparatus further comprises a component for receiving first paging information from an access network device using a first paging identifier; a component for determining whether application-level feedback is for a terminal device based on a bitmap in the first paging information, each bit of the bitmap indicating at least one terminal device among a plurality of terminal devices; and a component for establishing a connection with the access network device for receiving application-level feedback based on determining that the application-level feedback is for the terminal device.

[0121] In some embodiments, at least one of the following: the first paging identifier includes a store-and-forward paging radio network temporary identifier (SF-P-RNTI); the second paging identifier includes a paging radio network temporary identifier (P-RNTI); or the temporary identifier includes a store-and-forward radio network temporary identifier (SF-RNTI).

[0122] In some embodiments, the apparatus further comprises means for performing other steps of some embodiments of method 700. In some embodiments, the means comprises at least one processor; and at least one memory comprising computer program code, wherein the at least one memory and the computer program code are configured to, together with the at least one processor, enable the above-mentioned execution of the apparatus.

[0123] In some embodiments, an apparatus (e.g., network device 120) capable of performing any of the methods 700 may include a component for performing the corresponding steps of the method 700. The component may be implemented in any suitable form. For example, the component may be implemented in a circuit system or a software module.

[0124] In some embodiments, the apparatus includes a component for acquiring, at the access network device 120, a first paging identifier for scrambling a first paging message, the first paging message being a transmission scheduling first paging message for application-level feedback to the terminal device, the first paging identifier being different from a second paging identifier for scrambling a second paging message, the second paging information being a data transmission scheduling second paging message to the terminal device 110; and a component for sending the first paging message scrambled by the first paging identifier to the terminal device 110.

[0125] In some embodiments, the means for obtaining the first paging identifier comprises means for selecting one of a set of paging identifiers as the first paging identifier based on at least one of a cell identifier or a satellite identifier associated with a cell to which the terminal device was last connected.

[0126] In some embodiments, the means for acquiring the first paging identifier includes: means for receiving the first paging identifier from a core network device associated with the terminal device.

[0127] In some embodiments, the apparatus further comprises a component for determining that application-level feedback is for a terminal device; and a component for generating a first paging message based on determining that the application-level feedback is for the terminal device to include a temporary identifier specific to the terminal device for receiving the application-level feedback.

[0128] In some embodiments, the apparatus further comprises a component for determining to release a connection between the access network device and the terminal device; and a component for sending a connection release message to the terminal device, the connection release message comprising at least one of a temporary identifier and a first paging identifier.

[0129] In some embodiments, the apparatus further comprises a component for receiving a first paging message from a core network device associated with the terminal device, the first paging message comprising a temporary identifier specific to the terminal device for receiving application-level feedback.

[0130] In some embodiments, the apparatus further includes a component for determining that the first paging information will schedule the first paging message for multiple transmissions of application-level feedback to multiple terminal devices, the terminal device being one of the multiple terminal devices; and a component for generating the first paging information to include a bitmap for indicating the terminal device, each bit of the bitmap indicating one of the multiple terminal devices.

[0131] In some embodiments, at least one of the following: the first paging identifier includes a store-and-forward paging radio network temporary identifier (SF-P-RNTI); the second paging identifier includes a paging radio network temporary identifier (P-RNTI); or the temporary identifier includes a store-and-forward radio network temporary identifier (SF-RNTI).

[0132] In some embodiments, the access network equipment is non-terrestrial network equipment.

[0133] In some embodiments, the apparatus further comprises means for performing other steps of some embodiments of method 700. In some embodiments, the means comprises at least one processor; and at least one memory comprising computer program code, wherein the at least one memory and the computer program code are configured to, together with the at least one processor, enable the above-mentioned execution of the apparatus.

[0134] In some embodiments, an apparatus capable of performing any of the methods 800 (e.g., core network device 130) may include a component for performing the corresponding steps of the method 800. The component may be implemented in any suitable form. For example, the component may be implemented in a circuit system or a software module.

[0135] In some embodiments, the apparatus includes a component for determining, at a core network device 130, a first paging identifier for a terminal device to monitor first paging information, the first paging information being a transmission scheduling first paging message for application-level feedback, the first paging identifier being different from a second paging identifier for a terminal device to monitor second paging information, the second paging information being a data transmission scheduling second paging message; and a component for sending the first paging identifier to an access network device 120 to which the terminal device 110 is to be connected.

[0136] In some embodiments, the means for determining the first paging identifier includes: means for determining at least one of a cell identifier or a satellite identifier associated with a cell to which the terminal device was last connected; and means for determining the first paging identifier based on the second paging identifier and at least one of the cell identifier or the satellite identifier.

[0137] In some embodiments, the apparatus further comprises a component for generating a first paging message comprising a temporary identifier specific to the terminal device for receiving application-level feedback; and a component for sending the first paging message to the access network device for sending to the terminal device.

[0138] In some embodiments, at least one of the following: the first paging identifier includes a store-and-forward paging radio network temporary identifier (SF-P-RNTI); the second paging identifier includes a paging radio network temporary identifier (P-RNTI); or the temporary identifier includes a store-and-forward radio network temporary identifier (SF-RNTI).

[0139] In some embodiments, the apparatus further comprises means for performing other steps of some embodiments of method 800. In some embodiments, the means comprises at least one processor; and at least one memory comprising computer program code, wherein the at least one memory and the computer program code are configured to, together with the at least one processor, enable the above-mentioned execution of the apparatus.

[0140] Fig. 9 is a simplified block diagram of a device 900 suitable for implementing embodiments of the present disclosure. The device 900 may be provided to implement a communication device, such as Figure 1A The terminal device 110, access network device 120 or core network device 130 shown. As shown in the figure, the device 900 includes one or more processors 910, one or more memories 940 coupled to the processor 910, and one or more transmitters and / or receivers (TX / RX) 940 coupled to the processor 910.

[0141] The TX / RX 940 is used for bidirectional communication. The TX / RX 940 has at least one antenna to facilitate communication. The communication interface may represent any interface required to communicate with other network elements.

[0142] Processor 910 may be of any type suitable for the local technology network, and may include, as non-limiting examples, one or more of a general purpose computer, a special purpose computer, a microprocessor, a digital signal processor (DSP), and a processor based on a multi-core processor architecture. Device 900 may have multiple processors, such as application specific integrated circuit chips that are time slaved to a clock synchronized with a main processor.

[0143] The memory 920 may include one or more non-volatile memories and one or more volatile memories. Examples of non-volatile memories include, but are not limited to, read-only memory (ROM) 924, electrically programmable read-only memory (EPROM), flash memory, hard disk, compact disk (CD), digital video disk (DVD), and other magnetic storage and / or optical storage. Examples of volatile memories include, but are not limited to, random access memory (RAM) 922 and other volatile memories that do not persist during power outages.

[0144] The computer program 930 includes computer executable instructions executed by the associated processor 910. The program 930 may be stored in the ROM 920. The processor 910 may perform any suitable actions and processes by loading the program 930 into the RAM 920.

[0145] The embodiments of the present disclosure may be implemented by a program 930, so that the device 900 may execute the reference Figures 2 to 9 Any process of the present disclosure discussed. The embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.

[0146] In some embodiments, the program 930 may be tangibly contained in a computer-readable medium, which may be included in the device 900 (such as in the memory 920) or in other storage devices accessible to the device 900. The device 900 may load the program 930 from the computer-readable medium to the RAM 922 for execution. The computer-readable medium may include any type of tangible non-volatile memory, such as ROM, EPROM, flash memory, hard disk, CD, DVD, etc. Fig.10 An example of a computer readable medium 1000 in the form of a CD or DVD is shown. The computer readable medium has a program 930 stored thereon.

[0147] Generally, various embodiments of the present disclosure may be implemented using hardware or dedicated circuits, software, logic, or any combination thereof. Some aspects may be implemented using hardware, while other aspects may be implemented using firmware or software that may be executed by a controller, microprocessor, or other computing device. Although various aspects of the embodiments of the present disclosure are illustrated and described as block diagrams, flow charts, or using some other graphical representations, it should be understood that, as non-limiting examples, the boxes, devices, systems, techniques, or methods described herein may be implemented using hardware, software, firmware, dedicated circuits or logic, general-purpose hardware or controllers or other computing devices, or some combination thereof.

[0148] The present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer-readable storage medium. The computer program product includes computer executable instructions, such as instructions included in a program module, which are executed in a device on a target real or virtual processor to perform the above reference Figure 2-Figure 9 The method 600 described. Typically, a program module includes a routine, program, library, object, class, component, data structure, etc. that performs a specific task or implements a specific abstract data type. In various embodiments, the functions of the program modules can be combined or split between program modules as needed. The machine executable instructions of the program modules can be executed in a local or distributed device. In a distributed device, the program modules can be located in both local and remote storage media.

[0149] The program code for executing the method of the present disclosure can be written in any combination of one or more programming languages. These program codes can be provided to a processor or controller of a general-purpose computer, a special-purpose computer or other programmable data processing device so that the program code is implemented when executed by the processor or controller in the flow chart and / or the block diagram. The program code can be executed completely on the machine, partially on the machine, as an independent software package, partially on the machine and partially on a remote machine, or completely on a remote machine or server.

[0150] In the context of the present disclosure, computer program codes or related data may be carried by any suitable carrier to enable a device, apparatus or processor to perform various processes and operations as described above. Examples of carriers include signals, computer readable media, etc.

[0151] Computer readable medium can be a computer readable signal medium or a computer readable storage medium. Computer readable medium can include but is not limited to electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. More specific examples of computer readable storage medium will include electrical connections with one or more wires, portable computer floppy disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), optical fibers, portable compact disk read-only memories (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing. The term "non-transient" used herein is a restriction on the medium itself (i.e., tangible, rather than signal), rather than a restriction on data storage persistence (e.g., RAM and ROM).

[0152] In addition, although the operations are described in a particular order, this should not be understood as requiring such operations to be performed in the particular order shown or in order or performing all the operations shown to obtain the desired result. In some cases, multitasking and parallel processing may be advantageous. Similarly, although several specific implementation details are included in the above discussion, these should not be interpreted as limitations on the scope of the present disclosure, but rather descriptions of features that may be specific to a particular embodiment. Certain features described in the context of a separate embodiment may also be implemented in combination in a single embodiment. On the contrary, the various features described in the context of a single embodiment may also be implemented in multiple embodiments individually or in any suitable sub-combination.

[0153] Although the disclosure has been described in language specific to structural features and / or methodological acts, it should be understood that the disclosure defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features or acts described above are disclosed as example forms of implementing the claims.

Claims

1. A terminal device, comprising: at least one processor; as well as At least one memory storing instructions, which, when executed by the at least one processor, enable the terminal device to at least: Acquire a first paging identifier for monitoring first paging information, where the first paging information is a transmission scheduling first paging message of application-level feedback, where the first paging identifier is different from a second paging identifier for monitoring second paging information, where the second paging information is a data transmission scheduling second paging message; as well as Using the first paging identifier, monitoring the first paging information from an access network device.

2. The terminal device according to claim 1, wherein the terminal device is configured to obtain the first paging identifier by: determining at least one of: a cell identifier or a satellite identifier associated with a cell to which the terminal device transmits the application level data corresponding to the application level feedback; and The first paging identifier is determined based on the second paging identifier and the at least one of the cell identifier or the satellite identifier.

3. The terminal device according to claim 1, wherein the terminal device is configured to obtain the first paging identifier by: The first paging identifier is obtained from preprogrammed information.

4. The terminal device according to any one of claims 1 to 3, wherein the terminal device is further configured to: Using the first paging identifier, receiving the first paging information from the access network device; and Based on the first paging information, the first paging message is received from the access network device.

5. The terminal device according to claim 4, wherein the terminal device is further configured to: Acquire a temporary identifier specific to the terminal device for receiving the application-level feedback; determining whether one of the first paging message and the second paging message includes the temporary identifier specific to the terminal device; and Based on determining that the first paging message includes the temporary identifier, a connection is established with the access network device to receive the application-level feedback.

6. The terminal device according to claim 5, wherein the terminal device is caused to obtain the temporary identifier by: The temporary identifier is received from a previous access network device to which the terminal device was last connected.

7. The terminal device according to claim 1 or 2, wherein the terminal device is further configured to: Using the first paging identifier, receiving the first paging information from the access network device; determining whether the application-level feedback is for the terminal device based on a bitmap in the first paging information, each bit of the bitmap indicating at least one terminal device among a plurality of terminal devices; as well as Based on determining that the application-level feedback is for the terminal device, establishing a connection with the access network device to receive the application-level feedback.

8. The terminal device according to any one of claims 1 to 7, wherein at least one of the following: The first paging identifier comprises a store and forward paging radio network temporary identifier (SF-P-RNTI); The second paging identifier comprises a Paging Radio Network Temporary Identifier (P-RNTI); or The temporary identifier comprises a store and forward radio network temporary identifier (SF-RNTI).

9. An access network device, comprising: at least one processor; as well as At least one memory stores instructions, and when the instructions are executed by the at least one processor, the access network device at least: Acquire a first paging identifier used to scramble first paging information, where the first paging information is a transmission scheduling first paging message fed back to the application level of the terminal device, where the first paging identifier is different from a second paging identifier used to scramble second paging information, where the second paging information is a data transmission scheduling second paging message to the terminal device; as well as The first paging information scrambled by the first paging identifier is sent to the terminal device.

10. The access network device according to claim 9, wherein the access network device is configured to obtain the first paging identifier by: One of a set of paging identifiers is selected as the first paging identifier based on at least one of a cell identifier or a satellite identifier associated with a cell to which the terminal device was last connected.

11. The access network device according to claim 9, wherein the access network device is configured to obtain the first paging identifier by: The first paging identifier is received from a core network device associated with the terminal device.

12. The access network device according to any one of claims 8 to 11, wherein the access network device is further configured to: determining that the application-level feedback is for the terminal device; and Based on determining that the application-level feedback is for the terminal device, the first paging message is generated to include a temporary identifier specific to the terminal device for receiving the application-level feedback.

13. The access network device according to claim 12, wherein the access network device is further configured to: Determine to release the connection between the access network device and the terminal device; and A connection release message is sent to the terminal device, where the connection release message includes at least one of the temporary identifier and the first paging identifier.

14. The access network device according to any one of claims 8 to 13, wherein the access network device is further configured to: The first paging message is received from a core network device associated with the terminal device, the first paging message including a temporary identifier specific to the terminal device for receiving the application-level feedback.

15. The access network device according to any one of claims 8 to 14, wherein the access network device is further configured to: determining that the first paging information is to schedule the first paging message for multiple transmissions of application-level feedback to a plurality of terminal devices, the terminal device being one of the plurality of terminal devices; and The first paging information is generated to include a bitmap for indicating the terminal device, each bit of the bitmap indicating one terminal device among the multiple terminal devices.

16. The access network device according to any one of claims 8 to 15, wherein at least one of the following is: The first paging identifier comprises a store and forward paging radio network temporary identifier (SF-P-RNTI); The second paging identifier comprises a Paging Radio Network Temporary Identifier (P-RNTI); or The temporary identifier comprises a store and forward radio network temporary identifier (SF-RNTI).

17. The access network device according to any one of claims 9 to 16, wherein the access network device is a non-terrestrial network device.

18. A core network device, comprising: at least one processor; as well as At least one memory stores instructions, and when the instructions are executed by the at least one processor, the core network device at least: Determine a first paging identifier for a terminal device to monitor first paging information, where the first paging information is a transmission scheduling first paging message of application-level feedback, and the first paging identifier is different from a second paging identifier for the terminal device to monitor second paging information, where the second paging information is a data transmission scheduling second paging message; as well as The first paging identifier is sent to an access network device to which the terminal device is to be connected.

19. The core network device according to claim 18, wherein the core network device is configured to determine the first paging identifier by: determining at least one of a cell identifier or a satellite identifier associated with a cell to which the terminal device was last connected; and The first paging identifier is determined based on the second paging identifier and the at least one of the cell identifier or the satellite identifier.

20. The core network device according to claim 18 or 19, wherein the core network device is further configured to: generating the first paging message including a temporary identifier specific to the terminal device for receiving the application-level feedback; and The first paging message is sent to the access network device for sending to the terminal device.

21. The core network device according to any one of claims 18 to 20, wherein at least one of the following: The first paging identifier comprises a store and forward paging radio network temporary identifier (SF-P-RNTI); The second paging identifier comprises a Paging Radio Network Temporary Identifier (P-RNTI); or The temporary identifier comprises a store and forward radio network temporary identifier (SF-RNTI).

22. A method comprising: At a terminal device, a first paging identifier for monitoring first paging information is obtained, where the first paging information is a transmission scheduling first paging message of application-level feedback, and the first paging identifier is different from a second paging identifier for monitoring second paging information, where the second paging information is a data transmission scheduling second paging message; as well as Using the first paging identifier, monitoring the first paging information from an access network device.

23. A method comprising: At the access network device, a first paging identifier for scrambling first paging information is obtained, where the first paging information is a transmission scheduling first paging message fed back to the application level of the terminal device, and the first paging identifier is different from a second paging identifier for scrambling second paging information, where the second paging information is a data transmission scheduling second paging message to the terminal device; as well as The first paging information scrambled by the first paging identifier is sent to the terminal device.

24. A method comprising: At the core network device, determining a first paging identifier for a terminal device to monitor first paging information, where the first paging information is a transmission scheduling first paging message of application-level feedback, and the first paging identifier is different from a second paging identifier for the terminal device to monitor second paging information, where the second paging information is a data transmission scheduling second paging message; as well as The first paging identifier is sent to an access network device to which the terminal device is to be connected.

25. An apparatus comprising: A component for acquiring, at a terminal device, a first paging identifier for monitoring first paging information, wherein the first paging information is a transmission scheduling first paging message of application-level feedback, the first paging identifier is different from a second paging identifier for monitoring second paging information, and the second paging information is a data transmission scheduling second paging message; as well as Means for monitoring the first paging information from an access network device using the first paging identifier.

26. An apparatus comprising: A component for acquiring, at an access network device, a first paging identifier for scrambling first paging information, wherein the first paging information is a transmission scheduling first paging message fed back to an application level of a terminal device, the first paging identifier is different from a second paging identifier for scrambling second paging information, and the second paging information is a data transmission scheduling second paging message to the terminal device; as well as A component for sending the first paging information scrambled by the first paging identifier to the terminal device.

27. An apparatus comprising: A component for determining, at a core network device, a first paging identifier for a terminal device to monitor first paging information, wherein the first paging information is a transmission scheduling first paging message of application-level feedback, and the first paging identifier is different from a second paging identifier for the terminal device to monitor second paging information, and the second paging information is a data transmission scheduling second paging message; as well as A means for sending the first paging identifier to an access network device to which the terminal device is to be connected.

28. A non-transitory computer-readable medium comprising program instructions, which, when executed by a device, cause the device to at least perform the method according to any one of claims 22 to 24.

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