Wireless link management method, wireless link management device, and terminal device

Abstract

This invention provides a wireless link management method, a wireless link device, and a terminal device for enabling the management of indirect path wireless links by a remote terminal. [Solution] The method includes determining that a wireless link failure has occurred on a first indirect path of a terminal device if a wireless link failure occurs on a first link on the first indirect path of the terminal device. The first link includes at least one of the following: a Uu link between a first relay terminal and a network device, a direct communication link between a remote terminal and the first relay terminal, a direct communication link between a remote terminal and a second relay terminal, a direct communication link between two second relay terminals, and a direct communication link between a second relay terminal and the first relay terminal.

Claims

1. A wireless link management method performed by a terminal device, The system includes determining that a wireless link failure has occurred on the first indirect path of a terminal device if a wireless link failure occurs on the first indirect path of the terminal device. Here, the first link includes at least one of the following: a Uu link between the first relay terminal and the network device, a direct communication link between the remote terminal and the first relay terminal, a direct communication link between the remote terminal and the second relay terminal, a direct communication link between two second relay terminals, and a direct communication link between the second relay terminal and the first relay terminal. The first relay terminal is a relay terminal from a terminal to a network device, and the second relay terminal is a relay terminal from terminal to terminal. The aforementioned terminal device is the remote terminal, and the wireless link management method is also described.

2. If the first link includes at least one of the following: a Uu link between the first relay terminal and the network device, a direct communication link between two second relay terminals, and a direct communication link between the second relay terminal and the first relay terminal, before determining that a wireless link failure has occurred in the first indirect path of the terminal device, The method according to claim 1, comprising receiving first instruction information from a relay terminal for indicating that a wireless link failure has occurred in the first link.

3. After determining that a wireless link failure has occurred in the first indirect path of the terminal device, If a wireless link failure occurs in all first paths within the first cell group to which the first indirect path belongs, it is determined that a wireless link failure has occurred in the terminal device within the first cell group. The method according to claim 1, wherein the first path includes at least one of a direct path and a second indirect path, and the first indirect path is one of the second indirect paths.

4. After determining that a wireless link failure has occurred in the first indirect path of the terminal device, If no wireless link failure has occurred in at least one second path within the second cell group to which the terminal device is aggregated, the system includes transmitting indirect path wireless link failure instruction information to the network device via the second path that is not experiencing a wireless link failure. The method according to claim 1 or 3, wherein the second path includes a direct path or a third indirect path, and the second cell group is any of all cell groups aggregated by the terminal device.

5. The method according to claim 4, wherein the identification information of the first indirect path is carried in the indirect path wireless link failure instruction information.

6. The aforementioned identification information is Route identification information of the first indirect path, The identifier of the cell to which the first indirect path belongs and the path identification information within the cell, and The identifier of the cell to which the first indirect path belongs, the identifier of the relay terminal, and the identifier of the terminal device. The method according to claim 5, comprising at least one of the following.

7. After determining that a wireless link failure has occurred in the terminal device within the aforementioned first cell group, If the first cell group to which the first indirect path belongs is the first secondary cell group, and no wireless link failure has occurred in at least one third path within the second cell group, then the second instruction information for the first secondary cell group wireless link failure is transmitted to the network device via the third path that is not experiencing a wireless link failure, and If the first cell group to which the first indirect path belongs is a master cell group, and no wireless link failure has occurred in at least one fourth path within the secondary cell group, then the third instruction information for a master cell group wireless link failure is transmitted to the network device via the fourth path that is not experiencing a wireless link failure. Here, the second cell group includes at least one of the master cell group and other secondary cell groups excluding the first secondary cell group, and the third path includes a direct path or a fourth indirect path. The method according to claim 3, wherein the fourth path includes a direct path or a fifth indirect path.

8. The method according to claim 7, wherein the second instruction information carries identification information of the first secondary cell group.

9. Furthermore, This includes receiving a fourth instruction information from a network device to trigger the terminal device to perform the discovery and / or re-selection of a target object, The method according to claim 3 or 7, wherein the target object includes a relay terminal and / or a cell.

10. After determining that a wireless link failure has occurred in the first indirect path of the terminal device, This includes performing the discovery and / or re-selection of target objects, The method according to claim 1, wherein the target object includes a relay terminal and / or a cell.

11. A terminal device including memory, a transceiver, and a processor, Memory is used to store computer programs. The transceiver is used to send and receive data under the control of the processor. The processor is Read the computer program in the aforementioned memory, and further, This is used to determine that a wireless link failure has occurred on the first indirect path of a terminal device when a wireless link failure occurs on the first link on the first indirect path of the terminal device. Here, the first link includes at least one of the following: a Uu link between the first relay terminal and the network device, a direct communication link between the remote terminal and the first relay terminal, a direct communication link between the remote terminal and the second relay terminal, a direct communication link between two second relay terminals, and a direct communication link between the second relay terminal and the first relay terminal. The terminal device is such that the first relay terminal is a relay terminal from a terminal to a network device, the second relay terminal is a relay terminal from terminal to terminal, and the terminal device is the remote terminal.

12. If the first link includes at least one of the following: a Uu link between the first relay terminal and the network device, a direct communication link between two second relay terminals, and a direct communication link between the second relay terminal and the first relay terminal, the processor shall Read the computer program in the aforementioned memory, and further, The terminal device according to claim 11, which is used to receive first instruction information from a relay terminal via a transceiver for indicating that a wireless link failure has occurred in the first link.

13. The aforementioned processor, Read the computer program in the aforementioned memory, and further, This is used to determine that a wireless link failure has occurred in the terminal device within the first cell group to which the first indirect path belongs, when a wireless link failure occurs in all first paths within the first cell group to which the first indirect path belongs. The terminal device according to claim 11, wherein the first path includes at least one of a direct path and a second indirect path, and the first indirect path is one of the second indirect paths.

14. The aforementioned processor, It is used to read the computer program in the memory, and further, if no wireless link failure has occurred in at least one second path within the second cell group to which the terminal device is aggregated, to transmit indirect path wireless link failure instruction information to the network device via the second path that is not experiencing a wireless link failure. The terminal device according to claim 11 or 13, wherein the second path includes a direct path or a third indirect path, and the second cell group is any of all cell groups aggregated by the terminal device.

15. The terminal device according to claim 14, wherein the identification information of the first indirect path is carried in the indirect path wireless link failure instruction information.

16. A wireless link management device applicable to terminal equipment, The system includes a first determination unit used to determine that a wireless link failure has occurred on a first indirect path of a terminal device when a wireless link failure occurs on a first link on the first indirect path of the terminal device. Here, the first link includes at least one of the following: a Uu link between the first relay terminal and the network device, a direct communication link between the remote terminal and the first relay terminal, a direct communication link between the remote terminal and the second relay terminal, a direct communication link between two second relay terminals, and a direct communication link between the second relay terminal and the first relay terminal. The wireless link management device is characterized in that the first relay terminal is a relay terminal from a terminal to a network device, the second relay terminal is a relay terminal from terminal to terminal, and the terminal device is the remote terminal.

Images