Method for establishing connected state, terminal, core network function, and access network device

Patent metadata

Field	Value
Publication number	US-12598659-B2
Application number	US-202318137201-A
Country	US
Kind code	B2
Filing date	Apr 20, 2023
Priority date	Nov 6, 2020
Publication date	Apr 7, 2026
Grant date	Apr 7, 2026

Abstract

This application discloses a method for establishing a connected state, a terminal, a core network function, and an access network device. A method for establishing a connected state performed by a first terminal includes: receiving first information sent by a second terminal, where the first information includes at least one of: a second identifier, and network access information; and sending first indication information to a network side, where the first indication information includes at least one of: the second identifier, and a first identifier. The second identifier is used for indicating, to the network side, that the second terminal enters a connected state, and the first identifier is used for indicating, to the network side, that the first terminal enters a connected state.

First claim

What is claimed is:

1 . A method for establishing a connected state, performed by a first terminal, the method comprising:
receiving first information sent by a second terminal, wherein the first information comprises a second identifier, or the first information comprises the second identifier and network access information; and sending first indication information to a first core network function, wherein the first indication information comprises the second identifier, and a first identifier, wherein the second identifier is used for indicating, to the first core network function, that the second terminal enters a connected state, and the first identifier is used for indicating, to the first core network function, that the first terminal enters a connected state.

2 . The method according to claim 1 , wherein the first terminal sends, through the second terminal, the first indication information to the first core network function.

3 . The method according to claim 1 , wherein the network access information is obtained by the second terminal from a random access process.

4 . The method according to claim 1 , wherein the network access information comprises at least one of: synchronization information of an access network device; beam information of the access network device; contention resolution identifier; and radio resource control RRC configuration information.

5 . The method according to claim 1 , wherein the first terminal receives the first information sent by the second terminal in a PC 5 connection establishment process of the first terminal and the second terminal.

6 . The method according to claim 1 , further comprising:
sending, through the second terminal, a Msg3 to a network side; and receiving, through the second terminal, a Msg4 from the network side.

7 . The method according to claim 1 , further comprising:
receiving a Msg3 sent by the second terminal and forwarding the Msg3 to the to a network side; and receiving a Msg4 from the network side and sending the Msg4 to the second terminal.

8 . A first terminal, comprising a processor, a memory, and a program or an instruction stored in the memory and executable in the processor, wherein the program or instruction is executed by the processor to perform:
receiving first information sent by a second terminal, wherein the first information comprises a second identifier, or the first information comprises the second identifier and network access information; and sending first indication information to a first core network function, wherein the first indication information comprises the second identifier, and a first identifier, wherein the second identifier is used for indicating, to the first core network function, that the second terminal enters a connected state, and the first identifier is used for indicating, to the first core network function, that the first terminal enters a connected state.

9 . The first terminal according to claim 8 , wherein the first terminal sends, through the second terminal, the first indication information to the first core network function.

10 . The first terminal according to claim 8 , wherein the network access information is obtained by the second terminal from a random access process.

11 . The first terminal according to claim 8 , wherein the network access information comprises at least one of: synchronization information of an access network device; beam information of the access network device; contention resolution identifier; and radio resource control RRC configuration information.

12 . The first terminal according to claim 8 , wherein the first terminal receives the first information sent by the second terminal in a PC5 connection establishment process of the first terminal and the second terminal.

13 . The first terminal according to claim 8 , wherein the program or instruction is executed by the processor to perform:
sending, through the second terminal, a Msg3 to a network side; and receiving, through the second terminal, a Msg4 from the network side.

14 . The first terminal according to claim 8 , wherein the program or instruction is executed by the processor to perform:
receiving a Msg3 sent by the second terminal and forwarding the Msg3 to the to a network side; and receiving a Msg4 from the network side and sending the Msg4 to the second terminal.

Assignees

• Vivo Mobile Communication Co Ltd

Inventors

• Zhang Yizhong
• Xie Zhenhua
• Wang Wen

Classifications

• H04W76/20

  Manipulation of established connections · CPC title

• H04W74/0833

  Random access procedures, e.g. with 4-step access · CPC title

• H04W92/18

  between terminal devices · CPC title

• H04W76/14 Primary

  Direct-mode setup · CPC title

• H04W88/08

  Access point devices · CPC title