CN-122002325-A - Communication method and device

Abstract

The invention discloses a communication method and device, and relates to the technical field of communication. The method comprises the steps that after the UE receives PWS indication information, the PWS notification is preferentially received under the condition that the GNSS acquisition is triggered and the PWS notification reception is not completed, the GNSS acquisition is executed, or the GNSS acquisition is executed first, and after a new GNSS position is acquired, the PWS notification is acquired through a system message or a special RRC message. Therefore, when the RRC connection state UE receives the PWS indication information and the GNSS position of the UE is invalid, the behavior of the UE is clarified, the UE can be ensured to receive the PWS warning message content and execute GNSS acquisition, and the UE is prevented from entering the RRC idle state.

Inventors

• WANG FANFAN
• HU XINGXING

Assignees

• 华为技术有限公司

Dates

Publication Date

20260508

Application Date

20241107

Claims (20)

1. 1. A method of communication, comprising: Receiving PWS indication information of a public warning system; In the case where the global navigation satellite system GNSS acquisition is triggered and the reception of the PWS notification is not completed, the PWS notification is received or continues to be received.
2. 2. The method of claim 1, wherein the step of determining the position of the substrate comprises, The PWS indication information comprises at least one of an Earthquake and Tsunami Warning System (ETWS) indication information or a commercial mobile early warning system (CMAS) indication information; The condition that the GNSS acquisition is triggered comprises receiving a GNSS expiration indication, or receiving a GNSS measurement medium access control channel unit command, or uplink transmission extension expiration; The incomplete PWS notification reception condition includes that the PWS notification reception is not started, or that the PWS notification reception is started but all fragments of the PWS notification are not received; the PWS notification includes one or more of an ETWS primary notification, an ETWS secondary notification, or a CMAS notification.
3. 3. A method according to claim 1 or 2, characterized in that, After completing receiving the PWS notification, performing GNSS acquisition, or After receiving the ETWS master notification, performing GNSS acquisition.
4. 4. A method according to claim 1 or 2, characterized in that, After the PWS reception timer times out, GNSS acquisition is performed.
5. 5. A method according to claim 1 or 2, characterized in that, Between receiving the system message block 1 and the PWS notification, performing GNSS acquisition according to the implementation of the terminal device, the system message block 1 including scheduling information of the PWS notification.
6. 6. A method according to claim 1 or 2, characterized in that, During the PWS idle period, GNSS acquisition is performed.
7. 7. A method according to claim 1 or 2, characterized in that, Based on the PWS transmission start time, GNSS acquisition is performed.
8. 8. The method according to any one of claims 1-7, further comprising: at least one of PWS reception timer configuration information, PWS idle period, or PWS transmission start time is received.
9. 9. The method of claim 1, wherein receiving the PWS notification comprises: After GNSS acquisition is triggered, the PWS notification is received through a dedicated radio resource control RRC message.
10. 10. A method of communication, comprising: Receiving PWS indication information of a public warning system; The PWS notification is received via a dedicated radio resource control RRC message before the GNSS acquisition is not triggered.
11. 11. A method of communication, comprising: Sending PWS indication information of a public warning system; The PWS notification is sent based on the global navigation satellite system GNSS expiration date remaining time.
12. 12. The method of claim 11, wherein the method further comprises: at least one of PWS reception timer configuration information, PWS idle period, or PWS transmission start time is transmitted.
13. 13. The method according to claim 11 or 12, wherein sending the PWS notification based on the remaining time of the global navigation satellite system GNSS validity period comprises: according to the GNSS validity period residual time, before GNSS failure, the PWS notification is sent through a special Radio Resource Control (RRC) message; Or alternatively And under the condition that the reported GNSS validity period residual time is received, sending the PWS notification through a special RRC message.
14. 14. A method of communication, comprising: Receiving PWS indication information of a public early warning system, wherein the PWS indication information is at least one of ETWS indication information of an earthquake and tsunami warning system or CMAS indication information of a commercial mobile early warning system; In the case where the global navigation satellite system GNSS acquisition is triggered and the reception of the PWS notification is not completed, the GNSS acquisition is performed, and after a new GNSS position is acquired, the PWS notification is received or continued to be received.
15. 15. The method of claim 14, wherein obtaining a PWS notification comprises: The PWS notification is received through a dedicated radio resource control RRC message or a system message.
16. 16. A method of communication, comprising: Receiving the number of the PWS alarm message segments of the public early warning system; And sending a first time length to the network equipment, wherein the first time length is used for indicating a time length required for acquiring a PWS notification, and the PWS notification comprises a plurality of PWS alarm message fragments.
17. 17. A method of communication, comprising: receiving indication information, wherein the indication information comprises PWS indication of a public warning system; Receiving a PWS notification, the PWS notification including a plurality of PWS alert message segments; Transmitting a reception start instruction of the PWS notification and a reception completion instruction of the PWS notification; or when the last PWS alarm message segment of the PWS notification is received, transmitting a segment number of the PWS alarm message segment which is not received.
18. 18. A communication device comprising a processor and interface circuitry for receiving signals from other communication devices than the communication device and transmitting signals from the processor to the processor or sending signals from the processor to other communication devices than the communication device, the processor being configured to implement the method of any one of claims 1 to 17 by logic circuitry or executing code instructions.
19. 19. A computer readable storage medium, characterized in that the computer readable storage medium has stored therein a computer program or instructions which, when executed by a communication device, implements the method of any of claims 1 to 17.
20. 20. A computer program product, characterized in that it comprises a computer program or instructions which, when executed by a communication device, implements the method according to any of claims 1 to 17.

Description

Communication method and device Technical Field The present application relates to the field of communications technologies, and in particular, to a communications method and apparatus. Background Currently, the network device notifies the terminal device to provide an alert notification broadcasting indication, supporting notification of system message changes to the terminal device in idle state and the terminal device in connected state. After receiving the Public warning system (Public WARNING SYSTEM, PWS) instruction, the terminal equipment supporting the PWS acquires the warning message content. Before the terminal device connects to a Non-terrestrial communication network (Non-TERRESTRIAL NETWORK, NTN) cell, the terminal device has an active global navigation satellite system (Global Navigation SATELLITE SYSTEM, GNSS) location. The connected terminal equipment acquires a new GNSS position to maintain the GNSS effective. And the GNSS position fails, and the terminal equipment enters an idle state. The terminal device pauses the access stratum operation while performing GNSS position acquisition. Thus, the terminal device how to ensure GNSS position acquisition and PWS notification acquisition. Disclosure of Invention The application provides a communication method and device, which ensure GNSS position acquisition and PWS notification acquisition. In a first aspect, a communication method is provided, performed by a terminal device or by a module applied to the terminal device, comprising receiving PWS indication information, and receiving a PWS notification in case GNSS acquisition is triggered and PWS notification reception is not complete. Therefore, when the radio resource control (radio Resource Control, RRC) connected state User Equipment (UE) receives the PWS indication information, and the GNSS position of the UE also fails, the behavior of the UE is clarified, the UE can be ensured to receive the PWS warning message content and execute GNSS acquisition, and the UE is prevented from entering an RRC idle state. In one possible implementation, the PWS indication information includes at least one of an earthquake and tsunami warning system ETWS indication information or a commercial mobile early warning system CMAS indication information. The condition that the GNSS acquisition is triggered includes receiving a GNSS expiration indication, or receiving a GNSS measurement media access control channel unit command, or uplink transmission extension expiration. The PWS notifications include one or more of an ETWS primary notification, an ETWS secondary notification, or a CMAS notification. The case where the reception of the PWS notification is incomplete includes not starting the reception of the PWS notification, or starting the reception of the PWS notification but not receiving all segments of the PWS notification. In another possible implementation, the GNSS acquisition is performed after the completion of receiving the PWS notification, or after receiving the ETWS master notification. Upon receiving the PWS instruction, when the GNSS acquisition is triggered and the reception of the PWS notification is not completed, the terminal device immediately acquires or continues to acquire the PWS notification and then executes the GNSS acquisition. The terminal equipment can not only receive the PWS alarm message content, but also execute GNSS acquisition, and avoid the terminal equipment from entering an RRC idle state. In another possible implementation, the GNSS acquisition is performed after the PWS receive timer expires. In another possible implementation, between receiving the system message block 1 and the PWS notification, the GNSS acquisition is performed according to the implementation of the terminal device, the system message block 1 including the scheduling information of the PWS notification. In another possible implementation, the GNSS acquisitions are performed during the PWS idle period. In another possible implementation, the GNSS acquisitions are performed based on the PWS transmission start time. Determining when to start GNSS acquisition according to the indication information of the network equipment. The terminal equipment can not only receive the PWS alarm message content, but also execute GNSS acquisition, and avoid the terminal equipment from entering an RRC idle state. In another possible implementation, the method further comprises receiving at least one of PWS receive timer configuration information, PWS idle period, or PWS transmission start time. In another possible implementation, receiving the PWS notification includes receiving the PWS notification via a dedicated RRC message after the GNSS acquisition is triggered. The terminal device does not read or stops reading the system message related to the PWS, and obtains the PWS notification from the special signaling. The terminal equipment can not only receive the PWS alarm message content, but also execute GNSS acquisitio