EP-4742556-A1 - WIRELESS COMMUNICATION METHOD, COMMUNICATION DEVICE, AND STORAGE MEDIUM

Abstract

Provided in the embodiments of the present application are a wireless communication method, a communication device, and a storage medium. The method comprises: a terminal device receiving first indication information, which is used for determining that a first satellite successfully receives mobile-originated (MO) data sent by the terminal device, wherein the MO data is transmitted by using a storage and forwarding mode of the first satellite; and the terminal device caching the MO data, wherein the cached MO data is cleared away in the following cases: the terminal device determining that the MO data is successfully submitted to a core network and/or the cached MO data is invalid.

Inventors

• HU, YI
• LI, HAITAO

Assignees

• GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

Dates

Publication Date

20260513

Application Date

20230707

Claims (20)

1. A method for wireless communication, comprising: receiving, by a terminal device, first indication information, wherein the first indication information is used to determine that a first satellite successfully receives Mobile Originated (MO) data sent by the terminal device, and a store-and-forward mode of the first satellite is used for transmission of the MO data; and buffering, by the terminal device, the MO data, wherein the buffered MO data is cleared in following cases: the terminal device determines that the MO data is successfully delivered to a core network and/or the buffered MO data is invalid.
2. The method of claim 1, wherein the first indication information is carried in a first message, and the first message comprises one of: a first Radio Resource Control (RRC) message; a physical layer Hybrid Automatic Repeat-reQuest (HARQ) message; a radio link control layer Automatic Repeat-reQuest (ARQ) message; and a Packet Data Convergence Protocol (PDCP) layer acknowledgement message.
3. The method of claim 2, wherein the first RRC message comprises one of: an RRC early data completion message; an RRC connection release message; an RRC connection reject message; an RRC connection set up message; an RRC connection resume message; an RRC release message; an RRC reject message; an RRC set up message; an RRC resume message; a preset RRC message.
4. The method of any one of claims 1 to 3, further comprising: determining, by the terminal device based on second indication information, that the MO data is successfully delivered to the core network and/or the buffered MO data is invalid.
5. The method of claim 4, wherein the first indication information is carried on a first service link, and the second indication information is carried on a second service link.
6. The method of claim 5, wherein the first service link is a link between the terminal device and the first satellite; and the second service link is a re-communicated link between the terminal device and the first satellite, or a link between the terminal device and a second satellite.
7. The method of any one of claims 4 to 6, wherein the second indication information is comprised in a second message, and the second message comprises one of: a first paging message; and a second RRC message.
8. The method of claim 7, wherein if the second message comprises the second RRC message, and the method further comprises one of: sending, by the terminal device, the MO data; and initiating, by the terminal device, an RRC connection set up procedure or an RRC connection resume procedure.
9. The method of claim 8, further comprising: receiving, by the terminal device, a third paging message.
10. The method of any one of claims 7 to 9, wherein the second RRC message comprises one of: an RRC early data completion message; an RRC connection release message; an RRC connection reject message; an RRC connection set up message; an RRC connection resume message; an RRC release message; an RRC reject message; an RRC connection message; an RRC resume message.
11. The method of any one of claims 4 to 10, wherein the second indication information is used to indicate whether the MO data is successfully delivered to the core network.
12. The method of claim 11, further comprising: when the second indication information received by the terminal device indicates an acknowledgement, determining, by the terminal device, that the MO data is successfully delivered to the core network; or when the second indication information received by the terminal device indicates a negative acknowledgement, determining, by the terminal device, that the MO data is failed to be delivered to the core network.
13. The method of claim 11, further comprising: when the terminal device receives no second indication information within a first duration, determining, by the terminal device, that the MO data is successfully delivered to the core network; or determining, by the terminal device, that the MO data is failed to be delivered to the core network, and/or determining, by the terminal device, that the buffered MO data is invalid.
14. The method of any one of claims 4 to 10, wherein the second indication information is used to indicate that the MO data is successfully delivered to the core network.
15. The method of claim 14, further comprising: when the second indication information received by the terminal device indicates an acknowledgement, determining, by the terminal device, that the MO data is successfully delivered to the core network.
16. The method of claim 14, further comprising: when the terminal device receives no second indication information within a first duration, determining, by the terminal device, that the MO data is failed to be delivered to the core network, and/or determining, by the terminal device, that the buffered MO data is invalid.
17. The method of claim 13 or 16, wherein a starting time of the first duration is a reception time of the first indication information, or a moment when the terminal device sends the MO data for a first time or for a last time.
18. The method of any one of claims 4 to 17, wherein the second indication information is determined based on third indication information sent by the core network, and the third indication information is used to indicate whether the core network successfully receives the MO data.
19. A method for wireless communication, comprising: sending, by a first satellites, first indication information to a terminal device, wherein the first indication information is used to determine that the first satellite successfully receives Mobile Originated (MO) data sent by the terminal device, and a store-and-forward mode of the first satellite is used for transmission of the MO data; wherein the MO data buffered by the terminal device is cleared in following cases: the terminal device determines that the MO data is successfully delivered to a core network and/or the buffered MO data is invalid.
20. The method of claim 19, wherein the first indication information is comprised in a first message, and the first message comprises one of: a first Radio Resource Control (RRC) message; a physical layer Hybrid Automatic Repeat-reQuest (HARQ) message; a radio link control layer Automatic Repeat-reQuest (ARQ) message; and a Packet Data Convergence Protocol (PDCP) layer acknowledgement message.

Description

TECHNICAL FIELD Embodiments of the present disclosure relate to the technical field of mobile communication, and particularly to, methods for wireless communication, a communication device, and a storage medium. BACKGROUND The Non-Terrestrial Network (NTN) provides communication services to terrestrial users in by means of satellite communication. Compared with terrestrial cellular network communication, the satellite communication has many unique advantages, such as: not restricted by users' geographical areas, a long communication distance, and high stability. The links in the NTN network include: a feeder link that is a link used for communication between a gateway and a satellite, and a service link that is a link used for communication between a terminal and a satellite. The operation mode of a communication satellite includes a store-and-forward mode. In the store-and-forward mode, the feeder link and the service link cannot be available simultaneously. For Mobile Originated (MO) data, after User Equipment (UE) sends the MO data to a base station, the base station delivers the MO data to a core network, and then the base station sends a response message to the UE according to the delivery result of the MO data. If the UE determines that the MO data is successfully delivered to the core network based on the response message returned from the base station, the MO data buffered in the buffer is cleared. How to regulate the behavior of the terminal device when the transmission of the MO data is performed in the store-and-forward mode is an urgent problem to be solved. SUMMARY Embodiments of the present disclosure provide methods for wireless communication, a communication device, and a storage medium. A method for wireless communication provided by the embodiment of the present disclosure includes following operations. A terminal device receives first indication information, where the first indication information is used to determine that a first satellite successfully receives MO data sent by the terminal device, and a store-and-forward mode of the first satellite is used for transmission of the MO data. The terminal device buffers the MO data, where the buffered MO data is cleared in following cases: the terminal device determines that the MO data is successfully delivered to a core network and/or the buffered MO data is invalid. A method for wireless communication provided by the embodiment of the present disclosure includes following operations. A first satellite sends first indication information to a terminal device, where the first indication information is used to determine that the first satellite successfully receives MO data sent by the terminal device, and a store-and-forward mode of the first satellite is used for transmission of the MO data; where the MO data buffered by the terminal device is cleared in following cases: the terminal device determines that the MO data is successfully delivered to a core network and/or the buffered MO data is invalid. A method for wireless communication provided by the embodiment of the present disclosure includes following operations. A second satellite sends second indication information to a terminal device, where the second indication information is used for the terminal device to determine that the MO data is successfully delivered to the core network and/or the buffered MO data is invalid, where the MO data buffered in the terminal device is cleared in a case where the MO data is successfully delivered to a core network and/or the buffered MO data is invalid. The terminal device provided by the embodiment of the present disclosure includes a first communication unit and a buffering unit. The first communication unit is configured to receive first indication information, where the first indication information is used to determine that a first satellite successfully receives MO data sent by the terminal device, and a store-and-forward mode of the first satellite is used for transmission of the MO data; and The buffering unit is configured to buffer the MO data, where the buffered MO data is cleared in following cases: the terminal device determines that the MO data is successfully delivered to a core network and/or the buffered MO data is invalid. The first satellite provided by the embodiment of the present disclosure includes a second communication unit. The second communication unit is configured to send first indication information to a terminal device, where the first indication information is used to determine that the first satellite successfully receives MO data sent by the terminal device, and a store-and-forward mode of the first satellite is used for transmission of the MO data; where the MO data buffered by the terminal device is cleared in following cases: the terminal device determines that the MO data is successfully delivered to a core network and/or the buffered MO data is invalid. The second satellite provided by the embodiment of the pr