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EP-4496383-B1 - CONNECTING VIA A NON 3GPP PROTOCOL A TERMINAL TO A RELAY TERMINAL AND CONNECTING THE RELAY TERMINAL TO A NETWORK VIA A 3GPP PROTOCOL

EP4496383B1EP 4496383 B1EP4496383 B1EP 4496383B1EP-4496383-B1

Inventors

  • LU, QIANXI
  • ZHANG, Boyuan
  • LENG, Bingxue

Dates

Publication Date
20260506
Application Date
20220331

Claims (15)

  1. A wireless communication method (200), comprising: acquiring (S210), by a network device, target information from a first terminal, wherein the target information is information related to a connection between the first terminal and a second terminal; wherein the first terminal and the second terminal are connected via a first interface, the first interface is not an interface defined by a 3rd generation partnership project, 3GPP, protocol, the second terminal and the network device are connected via an interface defined by the 3GPP protocol, and a direct connection defined by the 3GPP protocol has been established between the first terminal and the network device; wherein acquiring (S210), by the network device, the target information from the first terminal, comprises: receiving, by the network device, first information transmitted by the first terminal, wherein the first information is information related to the connection between the first terminal and the second terminal; wherein the target information comprises the first information, and the first information is carried by terminal assistance information, UEAssistanceInformation.
  2. The method (200) according to claim 1, wherein the target information comprises identification information of the second terminal; wherein the identification information of the second terminal comprises a C-RNTI of the second terminal.
  3. The method (200) according to claim 1, wherein the first information is transmitted by the first terminal based on an indication of the network device.
  4. The method (200) according to claim 1, further comprising: transmitting (S203), by the network device, third information to the first terminal, wherein the third information is used to establish, modify, release or resume a relay connection between the first terminal and the network device; wherein the third information comprises identification information of the second terminal, and the relay connection comprises a connection between the first terminal and the second terminal and a connection between the second terminal and the network device.
  5. The method (200) according to claim 1, further comprising: transmitting (S204), by the network device, fourth information to the second terminal, wherein the fourth information is used to establish, modify, release or resume a relay connection between the first terminal and the network device; wherein the fourth information comprises second configuration information, which is used to configure a transmission performed via the relay connection between the first terminal and the network device, and the relay connection comprises a connection between the first terminal and the second terminal and a connection between the second terminal and the network device; wherein the second configuration information is used to configure a target Uu radio link control, RLC, channel, wherein the transmission corresponding to the target Uu RLC channel is performed via the relay connection.
  6. A wireless communication method (200), applied to a first terminal, wherein the first terminal and a second terminal are connected via a first interface, the first interface is not an interface defined by a 3rd generation partnership project, 3GPP, protocol, the second terminal and the network device are connected via an interface defined by the 3GPP protocol, and a direct connection defined by the 3GPP protocol has been established between the first terminal and a network device, and the method comprises: transmitting (S201), by the first terminal, first information to the network device, wherein the first information is information related to a connection between the first terminal and the second terminal, target information comprises the first information, and the first information is carried by terminal assistance information, UEAssistanceInformation.
  7. The method (200) according to claim 6, wherein the first information comprises identification information of the second terminal; wherein the identification information of the second terminal comprises a C-RNTI of the second terminal.
  8. The method (200) according to claim 6, wherein the first information is transmitted by the first terminal based on an indication of the network device.
  9. The method (200) according to claim 6, further comprising: receiving, by the first terminal, third information transmitted by the network device, wherein the third information is used to establish, modify, release or resume a relay connection between the first terminal and the network device; wherein the third information comprises identification information of the second terminal, and the relay connection comprises a connection between the first terminal and the second terminal and a connection between the second terminal and the network device.
  10. A network device (400), comprising: a processing unit (410), configured to acquire target information from a first terminal, wherein the target information is information related to a connection between the first terminal and a second terminal; wherein the first terminal and the second terminal are connected via a first interface, the first interface is not an interface defined by a 3rd generation partnership project, 3GPP, protocol, the second terminal and the network device are connected via an interface defined by the 3GPP protocol, and a direct connection defined by the 3GPP protocol has been established between the first terminal and the network device; wherein the processing unit (410) is configured to control a communication unit to receive first information transmitted by the first terminal, wherein the first information is information related to the connection between the first terminal and the second terminal; wherein the target information comprises the first information, and the first information is carried by terminal assistance information, UEAssistanceInformation.
  11. The network device (400) according to claim 10, wherein the target information comprises identification information of the second terminal; wherein the identification information of the second terminal comprises a C-RNTI of the second terminal.
  12. The network device (400) according to claim 10, wherein the first information is transmitted by the first terminal based on an indication of the network device.
  13. A terminal device (1000), wherein the terminal device (1000) and a second terminal are connected via a first interface, the first interface is not an interface defined by a 3rd generation partnership project, 3GPP, protocol, the second terminal and a network device are connected via an interface defined by the 3GPP protocol, and a direct connection defined by the 3GPP protocol has been established between the first terminal and the network device, and the terminal device comprises: a communication unit (1010), configured to transmit first information to the network device, wherein the first information is information related to a connection between the terminal device and the second terminal, target information comprises the first information, and the first information is carried by terminal assistance information, UEAssistanceInformation.
  14. The terminal device (1000) according to claim 13, wherein the first information comprises identification information of the second terminal; wherein the identification information of the second terminal comprises a C-RNTI of the second terminal.
  15. The terminal device (1000) according to claim 13, wherein the first information is transmitted by the first terminal based on an indication of the network device.

Description

TECHNICAL FIELD Embodiments of the present application relate to the field of communications, and in particular, to a wireless communication method, a network device, and a terminal device. BACKGROUND In some scenarios, a remote terminal may be connected to a network via multiple paths. For example, the remote terminal may be directly connected to the network and connected to the network via a relay terminal. In the related art, connections between the remote terminal and the relay terminal are based on interfaces defined by the 3rd generation partnership project (3rd Generation Partnership Project, 3GPP) protocol, such as a PC5 interface. In practical applications, the remote UE and the relay UE may also be connected by using an interface defined by a non-3GPP protocol, such as a wired connection, a wireless local area network (Wireless LAN, WLAN) connection, a blue tooth (Blue Tooth, BT) connection, etc. Therefore, in a multi-path relay system based on an interface defined by the non-3GPP protocol, how to perform connection management is an urgent problem to be solved. US 2019/159018 A1, US 2020/077460 A1 and 3GPP TS 36.331 V16.7.0 form part of the related prior art. SUMMARY The invention is carried out according to the appended independent claims. Optional features of the invention are carried out according to the dependent claims. The present application provides a wireless communication method, a network device and a terminal device, and a remote device may implement connection management such as establishment, release, modification, or resumption of a relay connection, by the network device. In a first aspect, a wireless communication method is provided, which includes: acquiring, by a network device, target information, where the target information is information related to a connection between a first terminal and a second terminal; where the first terminal and the second terminal are connected via a first interface, and the first interface is not an interface defined by a 3rd generation partnership project (3GPP) protocol. In a second aspect, a wireless communication method is provided, and applied to a first terminal, where the first terminal and a second terminal are connected via a first interface, and the first interface is not an interface defined by a 3rd generation partnership project (3GPP) protocol, and the method includes: transmitting, by the first terminal, first information to a network device, where the first information is information related to a connection between the first terminal and the second terminal. In a third aspect, a wireless communication method is provided, and applied to a second terminal, where the second terminal and a first terminal are connected via a first interface, the first interface is not an interface defined by a 3rd generation partnership project (3GPP) protocol, and the method includes: transmitting, by the second terminal, second information to a network device, where the second information is information related to a connection between the first terminal and the second terminal. In a fourth aspect, a network device is provided, and configured to perform the method in the above first aspect or any possible implementation of the above first aspect. Specifically, the network device includes a unit configured to perform the method in the above first aspect or any possible implementation of the above first aspect. In a fifth aspect, a terminal device is provided, and configured to perform the method in the above second aspect or any possible implementation of the above second aspect. Specifically, the terminal device includes a unit configured to perform the method in the above second aspect or any possible implementation of the above second aspect. In a sixth aspect, a terminal device is provided, and configured to perform the method in the above third aspect or any possible implementation of the above third aspect. Specifically, the terminal device includes a unit configured to perform the method in the above third aspect or any possible implementation of the above third aspect. In a seventh aspect, a network device is provided, and the network device includes: a processor and a memory. The memory is configured to store a computer program, and the processor is configured to invoke and execute the computer program stored in the memory, to perform the method in the above first aspect or various implementations thereof. In an eighth aspect, a terminal device is provided, and the terminal device includes: a processor and a memory. The memory is configured to store a computer program, and the processor is configured to invoke and execute the computer program stored in the memory, to perform the method in the above second aspect or various implementations thereof. In a ninth aspect, a terminal device is provided, and the terminal device includes: a processor and a memory. The memory is configured to store a computer program, and the processor is configured to in