US-12621047-B2 - Wireless communication method, terminal device and network device

US12621047B2US 12621047 B2US12621047 B2US 12621047B2US-12621047-B2

Abstract

The embodiments of the present disclosure provide a wireless communication method, a terminal device, and a network device. The network device can learn a difference between propagation delays from a serving satellite and a neighbor satellite to a terminal, thereby optimizing neighbor cell measurement configuration. The wireless communication method includes: transmitting, by a terminal device, first information including at least one of: signal propagation distance information from a serving satellite and a neighbor satellite of the serving satellite to the terminal device; signal propagation delay information from the serving satellite and the neighbor satellite of the serving satellite to the terminal device; or signal quality of the serving satellite and/or at least one neighbor satellite of the serving satellite as measured by the terminal device.

Inventors

Jiangsheng FAN
Haitao Li
Yi Hu

Assignees

GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

Dates

Publication Date: 20260505
Application Date: 20230516

Claims (20)

1 . A wireless communication method, comprising: transmitting, by a terminal device, first information comprising at least one of: service link propagation distance information from a serving cell and a neighbor cell to the terminal device; service link propagation delay information from a serving cell and a neighbor cell to the terminal device; or signal quality of a serving cell and/or at least one neighbor cell as measured by the terminal device, wherein the method further comprises: receiving, by the terminal device prior to transmitting the first information, second information, wherein the second information comprises: indication information indicating whether the terminal device is required to report at least one of the service link propagation distance information, the service link propagation delay information, or the signal quality; and neighbor cell ephemeris data configuration information for at least one of the service link propagation distance information, the service link propagation delay information, or the signal quality required to be reported by the terminal device.
2 . The method according to claim 1 , wherein the service link propagation delay information comprises: a difference between the service link propagation delay between the terminal device and the serving cell and the service link propagation delay between the terminal device and the neighbor cell.
3 . The method according to claim 1 , wherein the first information is carried by one of: a third message in a four-step random access procedure, a first message in a two-step random access procedure, or dedicated signaling for a connected state of the terminal device.
4 . The method according to claim 1 , wherein the second information comprises at least one of: an activation condition for recording at least one of the service link propagation distance information, the service link propagation delay information, or the signal quality; a trigger condition for reporting at least one of the service link propagation distance information, the service link propagation delay information, or the signal quality; or a format requirement for reporting at least one of the service link propagation distance information, the service link propagation delay information, or the signal quality.
5 . The method according to claim 1 , wherein: the neighbor cell ephemeris data configuration information is neighbor cell ephemeris original data configuration information, or the neighbor cell ephemeris data configuration information is neighbor cell ephemeris original data index identification configuration information.
6 . The method according to claim 1 , wherein the second information is carried by one of: system information or dedicated signaling of the terminal device.
7 . A wireless communication method, comprising: receiving, by a network device, first information transmitted by a terminal device, the first information comprising at least one of: service link propagation distance information from a serving cell and a neighbor cell to the terminal device; service link propagation delay information from a serving cell and a neighbor cell to the terminal device; or signal quality of a serving cell and/or at least one neighbor cell as measured by the terminal device, wherein the method further comprises: transmitting, by the network device prior to receiving the first information, second information to the terminal device, wherein the second information comprises: indication information indicating whether the terminal device is required to report at least one of the service link propagation distance information, the service link propagation delay information, or the signal quality; and neighbor cell ephemeris data configuration information for at least one of the service link propagation distance information, the service link propagation delay information, or the signal quality required to be reported by the terminal device.
8 . The method according to claim 7 , wherein the service link propagation delay information comprises: a difference between the service link propagation delay between the terminal device and the serving cell and the service link propagation delay between the terminal device and the neighbor cell.
9 . The method according to claim 7 , wherein the first information is carried by one of: a third message in a four-step random access procedure, a first message in a two-step random access procedure, or dedicated signaling for a connected state of the terminal device.
10 . The method according to claim 7 , wherein the second information comprises at least one of: an activation condition for recording at least one of the service link propagation distance information, the service link propagation delay information, or the signal quality; a trigger condition for reporting at least one of the service link propagation distance information, the service link propagation delay information, or the signal quality; or a format requirement for reporting at least one of the service link propagation distance information, the service link propagation delay information, or the signal quality.
11 . The method according to claim 7 , wherein: the neighbor cell ephemeris data configuration information is neighbor cell ephemeris original data configuration information, or the neighbor cell ephemeris data configuration information is neighbor cell ephemeris original data index identification configuration information.
12 . The method according to claim 7 , wherein the second information is carried by one of: system information or dedicated signaling of the terminal device.
13 . The method according to claim 7 , further comprising: transmitting, by the network device, handover request information for requesting handover to a target cell, the handover request information including at least content included in the first information.
14 . A terminal device, comprising a processor and a memory, wherein the memory has a computer program stored thereon, and the processor is configured to invoke and execute the computer program stored in the memory to cause the terminal device to perform: transmitting first information comprising at least one of: service link propagation distance information from a serving cell and a neighbor cell to the terminal device; service link propagation delay information from a serving cell and a neighbor cell to the terminal device; or signal quality of a serving cell and/or at least one neighbor cell as measured by the terminal device; and receiving, by the terminal device prior to transmitting the first information, second information, wherein the second information comprises: indication information indicating whether the terminal device is required to report at least one of the service link propagation distance information, the service link propagation delay information, or the signal quality; and neighbor cell ephemeris data configuration information for at least one of the service link propagation distance information, the service link propagation delay information, or the signal quality required to be reported by the terminal device.
15 . The terminal device according to claim 14 , wherein the service link propagation delay information comprises: a difference between the service link propagation delay between the terminal device and the serving cell and the service link propagation delay between the terminal device and the neighbor cell.
16 . The terminal device according to claim 14 , wherein the first information is carried by one of: a third message in a four-step random access procedure, a first message in a two-step random access procedure, or dedicated signaling for a connected state of the terminal device.
17 . The terminal device according to claim 14 , wherein the second information comprises at least one of: an activation condition for recording at least one of the service link propagation distance information, the service link propagation delay information, or the signal quality; a trigger condition for reporting at least one of the service link propagation distance information, the service link propagation delay information, or the signal quality; or a format requirement for reporting at least one of the service link propagation distance information, the service link propagation delay information, or the signal quality.
18 . The terminal device according to claim 14 , wherein: the neighbor cell ephemeris data configuration information is neighbor cell ephemeris original data configuration information, or the neighbor cell ephemeris data configuration information is neighbor cell ephemeris original data index identification configuration information.
19 . The terminal device according to claim 14 , wherein the second information is carried by one of: system information or dedicated signaling of the terminal device.
20 . A network device, comprising a processor and a memory, wherein the memory has a computer program stored thereon, and the processor is configured to invoke and execute the computer program stored in the memory to cause the network device to perform the method according to claim 7 .

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation of International Application No. PCT/CN2021/071931 filed on Jan. 14, 2021, the entire disclosure of which is incorporated herein by reference. TECHNICAL FIELD The embodiments of the present disclosure relate to communication technology, and more particularly, to a wireless communication method, a terminal device and a network device. BACKGROUND The 5th Generation mobile communication technology New Radio (5G NR) system defines Non-Terrestrial Network (NTN) system deployment scenarios including satellite networks. With the wide-area coverage capabilities of satellites, the NTN system can provide the continuity of 5G NR services. However, in the NTN scenario, since the network cannot always obtain the precise location of the terminal, a difference between propagation delays from different satellites to a terminal is unknown, which brings new challenges to neighbor cell measurement configuration. SUMMARY The embodiments of the present disclosure provide a wireless communication method, a terminal device, and a network device. The network device can learn a difference between propagation delays from a serving satellite and a neighbor satellite to a terminal, thereby optimizing neighbor cell measurement configuration. In a first aspect, a wireless communication method is provided. The method includes: transmitting, by a terminal device, first information including at least one of:signal propagation distance information from a serving satellite and a neighbor satellite of the serving satellite to the terminal device;signal propagation delay information from the serving satellite and the neighbor satellite of the serving satellite to the terminal device; orsignal quality of the serving satellite and/or at least one neighbor satellite of the serving satellite as measured by the terminal device. In a second aspect, a wireless communication method is provided. The method includes: receiving, by a network device, first information transmitted by a terminal device, the first information including at least one of:signal propagation distance information from a serving satellite and a neighbor satellite of the serving satellite to the terminal device;signal propagation delay information from the serving satellite and the neighbor satellite of the serving satellite to the terminal device; orsignal quality of the serving satellite and/or at least one neighbor satellite of the serving satellite as measured by the terminal device. In a third aspect, a terminal device is provided. The terminal device is configured to perform the method according to the above first aspect. In particular, the terminal device includes one or more functional modules configured to perform the method according to the above first aspect. In a fourth aspect, a network device is provided. The network device is configured to perform the method according to the above second aspect. In particular, the network device includes one or more functional modules configured to perform the method according to the above second aspect. In a fifth aspect, a terminal device is provided. The terminal device includes a processor and a memory. The memory stores a computer program, and the processor is configured to invoke and execute the computer program stored in the memory to perform the method according to the above first aspect. In a sixth aspect, a network device is provided. The network device includes a processor and a memory. The memory stores a computer program, and the processor is configured to invoke and execute the computer program stored in the memory to perform the method according to the above second aspect. In a seventh aspect, an apparatus is provided. The apparatus is configured to perform the method according to any of the above first and second aspects. In particular, the apparatus includes a processor configured to invoke and execute a computer program from a memory, to cause a device provided with the apparatus to perform the method according to any of the above first and second aspects. In an eighth aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores a computer program that causes a computer to perform the method according to any of the above first and second aspects. In a ninth aspect, a computer program product is provided. The computer program product includes computer program instructions that cause a computer to perform the method according to any of the above first and second aspects. In a tenth aspect, a computer program is provided. The computer program, when executed on a computer, causes the computer to perform the method according to any of the above first and second aspects. With the above technical solutions, the terminal device can report at least one of the signal propagation distance information from the serving satellite and the neighbor satellite to the terminal device, the signal propagation delay informatio