US-20260129711-A1 - METHOD AND APPARATUS FOR ENTERING CONNECTED STATE, AND TERMINAL AND NETWORK DEVICE

Abstract

Embodiments of the present disclosure relate to the field of communications, and provide a method and apparatus for entering a connected state, and a terminal and a network device. The method for entering a connected state including receiving a reconfiguration message sent by a network device, and the reconfiguration message includes information of a target relay terminal; and when it is determined that there are other paths for connection with the network device, sending a first message to the target relay terminal, and the first message is used for triggering the target relay terminal to enter a connected state from an idle state or an inactive state or to keep in the connected state.

Inventors

• Huiying Zhang
• Yali Zhao

Assignees

• DATANG MOBILE COMMUNICATIONS EQUIPMENT CO.,LTD.

Dates

Publication Date

20260507

Application Date

20230518

Priority Date

20220926

Claims (20)

1. 1 . A method for entering connected state, performed by a remote user equipment (UE), comprising: receiving a reconfiguration message transmitted from a network device, wherein the reconfiguration message comprises information of a target relay UE; and in case of determining that other paths for connecting to the network device exist, transmitting a first message to the target relay UE, wherein the first message is used to trigger the target relay UE to enter connected state from idle state or inactive state, or remain in connected state.
2. 2 . The method of claim 1 , wherein the first message comprises a reconfiguration complete message or a sidelink message.
3. 3 - 4 . (canceled)
4. 5 . The method of claim 2 , wherein the first message comprises the sidelink message, the sidelink message comprises second indication information, and the second indication information is used to indicate the target relay UE to enter connected state from idle state or inactive state, or remain in connected state.
5. 6 . (canceled)
6. 7 . The method of claim 5 , wherein the sidelink message comprises at least one of the following: PC5-radio resource control (RRC) based sidelink message; sidelink media access control layer control element; sidelink scheduling control information; or PC5-S based sidelink message.
7. 8 . The method of claim 1 , wherein transmitting the first message to the target relay UE comprises: establishing a unicast connection with the target relay UE; and transmitting the first message to the target relay UE through the unicast connection.
8. 9 . A method for entering connected state, performed by a target relay user equipment (UE), comprising: receiving a first message transmitted from a remote UE; and based on the first message, entering connected state from idle state or inactive state, or remaining in connected state.
9. 10 . The method of claim 9 , wherein the first message comprises a reconfiguration complete message or a sidelink message.
10. 11 - 12 . (canceled)
11. 13 . The method of claim 10 , wherein the first message comprises the sidelink message, the sidelink message comprises second indication information, and wherein based on the first message, entering connected state from idle state or inactive state, or remaining in connected state comprises: based on the second indication information, entering connected state from idle state or inactive state, or remaining in connected state; wherein the second indication information is used to indicate the target relay UE to enter connected state from idle state or inactive state, or remain in connected state.
12. 14 . (canceled)
13. 15 . The method of claim 13 , wherein the sidelink message comprises at least one of the following: PC5-radio resource control (RRC) based sidelink message; sidelink media access control layer control element; sidelink scheduling control information; or PC5-S based sidelink message.
14. 16 . The method of claim 9 , wherein receiving the first message transmitted from the remote UE comprises: establishing a unicast connection with the remote UE; and receiving the first message through the unicast connection.
15. 17 . A method for entering connected state, performed by a network device, comprising: transmitting a reconfiguration message to a remote user equipment (UE), wherein the reconfiguration message comprises information of a target relay UE and first indication information; or, the reconfiguration message comprises information of a target relay UE and third indication information; wherein the first indication information is used to indicate the remote UE to transmit a reconfiguration complete message to the network device through the target relay UE; wherein the third indication information is used to indicate the remote UE whether to transmit a sidelink message to the target relay UE.
16. 18 - 19 . (canceled)
17. 20 . A remote user equipment (UE), comprising a memory, a transceiver, and a processor; wherein the memory is used for storing a computer program; the transceiver is used for receiving and transmitting data under control of the processor; and the processor is used for reading the computer program in the memory and performing the method of claim 1 .
18. 21 . The remote UE of claim 20 , wherein the first message comprises a reconfiguration complete message or a sidelink message.
19. 22 - 23 . (canceled)
20. 24 . The remote UE of claim 21 , wherein the first message comprises the sidelink message, the sidelink message comprises second indication information, and the second indication information is used to indicate the target relay UE to enter connected state from idle state or inactive state, or remain in connected state.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS The present application is a National Stage of International Application No. PCT/CN2023/094981, filed on May 18, 2023, which claims priority to Chinese patent application No. 202211176342.X filed on Sep. 26, 2022, entitled “Method and Apparatus for Entering Connected State, and Terminal and Network Device”, which are hereby incorporated by reference in their entireties. FIELD The present application relates to the field of communications, and in particular, to methods and apparatuses for entering connected state, user equipments and a network device. BACKGROUND The 3rd generation partnership project (3GPP) supports multi-path transmission, for example, a remote user equipment (UE) may support to access a network device through a UE to network (U2N) relay UE and a Uu interface simultaneously. In the above multi-path transmission scenario, in case that an indirect path is added or modified, if the remote UE determines that there is a direct path for connecting to the network device, the remote UE transmits a radio resource control (RRC) configuration complete message to the network device through the direct path, resulting in the remote UE being unable to communicate with the network device through the relay UE. BRIEF SUMMARY Embodiments of the present application provide methods and apparatuses for entering connected state, user equipments (UEs) and a network device, which are used to solve a problem that a remote UE cannot communicate with a network device through a relay UE in case that there are other paths for connecting to the network device. An embodiment of the present application provides a method for entering connected state, performed by a remote user equipment (UE), including: receiving a reconfiguration message transmitted from a network device, where the reconfiguration message includes information of a target relay UE; andin case of determining that other paths for connecting to the network device exist, transmitting a first message to the target relay UE, where the first message is used to trigger the target relay UE to enter connected state from idle state or inactive state, or remain in connected state. In an embodiment, the first message includes a reconfiguration complete message or a sidelink message. In an embodiment, the first message includes the reconfiguration complete message, and the reconfiguration message further includes first indication information, and where transmitting the first message to the target relay UE includes: transmitting the reconfiguration complete message to the target relay UE based on the first indication information;where the first indication information is used to indicate the remote UE to transmit the reconfiguration complete message to the network device through the target relay UE. In an embodiment, the first indication information includes at least one of the following: a primary path for a signaling radio bearer being an indirect path;a transmission path for a signaling radio bearer being an indirect path;a primary path for a signaling radio bearer being a direct path, and the reconfiguration complete message being transmitted through an indirect path;a transmission mode for a signaling radio bearer being duplication transmission; ora transmission path identifier for the reconfiguration complete message, where the transmission path identifier includes an identifier of an indirect path, or an identifier of an indirect path and an identifier of a direct path. In an embodiment, the first message includes the sidelink message, the sidelink message includes second indication information, and the second indication information is used to indicate the target relay UE to enter connected state from idle state or inactive state, or remain in connected state. In an embodiment, the reconfiguration message further includes third indication information, and where transmitting the first message to the target relay UE includes: in case of determining, based on the third indication information, to transmit the sidelink message to the target relay UE, transmitting the sidelink message to the target relay UE;where the third indication information is used to indicate the remote UE whether to transmit the sidelink message to the target relay UE. In an embodiment, the sidelink message includes at least one of the following: PC5-radio resource control (RRC) based sidelink message;sidelink media access control layer control element;sidelink scheduling control information; orPC5-S based sidelink message. In an embodiment, transmitting the first message to the target relay UE includes: establishing a unicast connection with the target relay UE; andtransmitting the first message to the target relay UE through the unicast connection. An embodiment of the present application further provides a method for entering connected state, performed by a target relay user equipment (UE), including: receiving a first message transmitted from a remote UE