Method and apparatus for platoon-based communications
Various embodiments of the present disclosure provide a method for platoon-based communications. The method which may be performed by a first network node comprises determining, at a radio layer, a group header of a device group which comprises at least a terminal device. The group header comprises at least one of: an application layer group header being responsible for management of the device group at an application layer, and a radio layer group header being responsible for management of the device group at the radio layer. According to the embodiments of the present disclosure, a radio layer group header may be appointed for a device group so that communication management on the device group can be performed at the radio level.
1. A method performed by a first network node, the method comprising:
determining, at a radio layer, a group header of a device group which comprises at least a terminal device, the group header comprising at least one of:
an application layer group header being responsible for management of the device group at an application layer; and
a radio layer group header being responsible for management of the device group at the radio layer;
assigning a higher priority for communications with the group header of the device group than communications with other devices; and
the first network node being a radio access network node and the radio access node being a base station.
2. The method of claim 1 , wherein the determination of the group header of the device group comprises:
obtaining identification information of the application layer group header from at least one of a second network node and the terminal device of the device group; and
determining the radio layer group header of the device group, based at least in part on the identification information of the application layer group header.
3. The method of claim 1 , wherein the radio layer group header is the same as the application layer group header.
4. The method of claim 1 , wherein the determination of the group header of the device group comprises:
appointing the terminal device as the radio layer group header of the device group, according to one or more predefined appointment criteria, wherein the appointment of the terminal device as the radio layer group header of the device group is performed by the first network node, in response to a message from the terminal device triggered by one or more predefined events occurring at the terminal device.
5. The method of claim 4 , wherein the message triggered by the one or more predefined events indicates that the terminal device requests to become the radio layer group header or indicates that the terminal device appoints itself as the radio layer group header.
6. The method of claim 4 , further comprising:
informing a second network node of at least part of the message triggered by the one or more predefined events; and issuing a response to the message triggered by the one or more predefined events.
7. The method of claim 4 , further comprising:
notifying identification information of the terminal device to other members of the device group, in response that the terminal device is appointed as the radio layer group header of the device group.
8. The method of claim 1 , further comprising:
participating at least partly in an admission control process for a candidate member of the device group via the radio layer group header.
9. A first network node, comprising:
one or more processors; and
one or more memories comprising computer program codes, the one or more memories and the computer program codes configured to, with the one or more processors:
cause the first network node to determine, at a radio layer, a group header of a device group which comprises at least a terminal device, the group header comprising at least one of:
an application layer group header being responsible for management of the device group at an application layer; and
a radio layer group header being responsible for management of the device group at the radio layer;
assign a higher priority for communications with the group header of the device group than communications with other devices; and
the first network node being a radio access network node and the radio access node being a base station.