Communication device, control method for communication device, and non-transitory computer-readable storage medium
A communication device, that functions as a node connected to user equipment in an IAB (Integrated Access and Backhaul) network, performs: determining whether a type of a network slice requested by the user equipment is supported by a first other node connected above the communication device; determining, when the communication device determines that the type of the network slice is not supported by the first other node, whether at least one other node that can connect above the communication device, supports the type of the network slice is present; and, when the communication device determines that at least one other node that supports the type of the network slice is present, connecting to a second other node among the at least one other node that supports the type of the network slice.
1 . A communication device that functions as an IAB (Integrated Access and Backhaul) node connected to user equipment in an IAB network, the communication device comprising:
at least one processor; and
at least a memory coupled to the at least one processor and having instructions stored thereon, and when executed by the at least one processor, cause the at least one processor to perform:
determining whether a type of a network slice requested by the user equipment is supported by a first other IAB node connected above the communication device;
determining, when the communication device determines that the type of the network slice is not supported by the first other IAB node, whether at least one other IAB node, among at least one other IAB node that can connect above the communication device, that supports the type of the network slice is present; and
when the communication device determines that at least one other IAB node that supports the type of the network slice is present, connecting to a second other IAB node among the at least one other IAB node that supports the type of the network slice.
2 . The communication device according to claim 1 , wherein the communication device determines whether the type is supported by the first other IAB node based on a signal communicated from the first other IAB node.
3 . The communication device according to claim 1 , wherein the communication device determines whether a node that supports the type of the network slice is present based on a signal reported from at least one other IAB node that can connect above the communication device.
4 . The communication device according to claim 1 , wherein the communication device makes a query to the at least one other IAB node that can connect above the communication device as to whether the type of the network slice can be supported, and determines whether a node that supports the type of the network slice is present based on a signal in response to the query.
5 . The communication device according to claim 1 , wherein the communication device terminates a connection with the first other IAB node and connects to the second other IAB node.
6 . The communication device according to claim 1 , wherein the communication device maintains a connection with the first other IAB node and connects to the second other IAB node.
7 . The communication device according to claim 1 , wherein as the second other IAB node, the communication device preferentially determines and connects to a node under an IAB donor in a route to which the communication device is connected, from among the at least one other IAB node that supports the type of the network slice.
8 . The communication device according to claim 1 , wherein at least one of the first other IAB node and the second other IAB node functions as an IAB donor.
9 . The communication device according to claim 1 , wherein when executed by the at least one processor, the instructions further cause the at least one processor to perform:
notifying the user equipment that a node that supports the type of the network slice is not present when the communication device determines that the at least one other IAB node is not present.
10 . A control method for a communication device that functions as an IAB (Integrated Access and Backhaul) node connected to user equipment in an IAB network, the control method comprising:
determining whether a type of a network slice requested by the user equipment is supported by a first other IAB node connected above the communication device;
determining, when it is determined that the type of the network slice is not supported by the first other IAB node, whether at least one other IAB node, among at least one other IAB node that can connect above the communication device, that supports the type of the network slice is present; and
connecting, when it is determined that at least one other IAB node that supports the type of the network slice is present, to a second other IAB node among the at least one other IAB node that supports the type of the network slice.
11 . A non-transitory computer-readable storage medium storing a program that causes a computer to perform a control method for a communication device that functions as an IAB (Integrated Access and Backhaul) node connected to user equipment in an IAB network, the control method comprising:
determining whether a type of a network slice requested by the user equipment is supported by a first other IAB node connected above the communication device;
determining, when it is determined that the type of the network slice is not supported by the first other IAB node, whether at least one other IAB node, among at least one other IAB node that can connect above the communication device, that supports the type of the network slice is present; and
when it is determined that at least one other IAB node that supports the type of the network slice is present, connect to a second other IAB node among the at least one other IAB node that supports the type of the network slice.