Method for transmitting control signaling in relay network, configuration method and device
The present disclosure relates to a pre-5 th -Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4 th -Generation (4G) communication system such as Long Term Evolution (LTE). According to the present application, a method for transmitting control signaling in a relay network comprises: a second relay node acquires a first control signaling and a second control signaling, wherein the first control signaling contains an F1AP message; the second relay node processes the first control signaling and the second control signaling in the same manner or different manners; and the second relay node transmits the first control signaling and the second control signaling to a first relay node.
1 . A method performed by a central unit (CU) of a donor node in a communication system, the method comprising:
transmitting, to a first integrated access and backhaul (IAB) node via a distributed unit (DU) of the donor node, a radio resource control (RRC) reconfiguration message including identification information of a logical channel corresponding to a backhaul link channel and information about priority of the logical channel corresponding to the backhaul link channel; and
transmitting, to the first IAB node, a configuration message including:
address information of a receiving node over the backhaul link channel, and
channel identification information for the backhaul link channel,
wherein the backhaul link channel comprises a radio link control (RLC) channel used for a link between a DU of the first IAB node and the receiving node.
2 . The method of claim 1 , wherein the RRC reconfiguration message further includes identification information of each backhaul link channel.
3 . The method of claim 1 , wherein the configuration message further includes indication information for indicating a type of information carried over the backhaul link channel, and
wherein the type of information is one of types including a user equipment (UE) associated F1 application protocol (F1AP) signaling or a non-UE associated F1AP signaling.
4 . The method of claim 3 , wherein the indication information for indicating the type of information is associated with a control plane.
5 . The method of claim 1 , wherein the receiving node comprises a second IAB node different from the first IAB node.
6 . The method of claim 1 , wherein the first IAB node comprises the DU of the first IAB node and a mobile termination (MT) of the first IAB node.
7 . A method performed by a first integrated access and backhaul (IAB) node comprising a distributed unit (DU) and a mobile termination (MT) in a communication system, the method comprising:
receiving, from a central unit (CU) of a donor node via a DU of the donor node, a radio resource control (RRC) reconfiguration message including identification information of a logical channel corresponding to a backhaul link channel and information about priority of the logical channel corresponding to the backhaul link channel; and
receiving, from the CU of the donor node, a configuration message including:
address information of a receiving node over the backhaul link channel, and
channel identification information for the backhaul link channel, wherein the backhaul link channel comprises a radio link control (RLC) channel used for a link between a DU of the first IAB node and the receiving node.
8 . The method of claim 7 , wherein the RRC reconfiguration message further includes identification information of each backhaul link channel.
9 . The method of claim 7 , wherein the configuration message further includes indication information for indicating a type of information carried over the backhaul link channel, and
wherein the type of information is one of types including a user equipment UE associated F 1 application protocol (F 1 AP) signaling or a non-UE associated F 1 AP signaling.
10 . The method of claim 9 , wherein the indication information for indicating the type of information is associated with a control plane.
11 . The method of claim 7 , wherein the receiving node comprises a second IAB node different from the first IAB node.
12 . A central unit (CU) of a donor node in a communication system, the CU comprising:
at least one transceiver; and
at least one processor coupled to the at least one transceiver and configured to:
transmit, to a first integrated access and backhaul (IAB) node via a distributed unit (DU) of the donor node, a radio resource control (RRC) reconfiguration message including identification information of a logical channel corresponding to a backhaul link channel and information about priority of the logical channel corresponding to the backhaul link channel,
transmit, to the first IAB node, a configuration message including:
address information of a receiving node over the backhaul link channel, and
channel identification information for the backhaul link channel, wherein the backhaul link channel comprises a radio link control (RLC) channel used for a link between a distributed unit (DU) of the first IAB node and the receiving node.
13 . The CU of claim 12 , wherein the RRC reconfiguration message further includes channel identification information of each backhaul link channel.
14 . The CU of claim 12 , wherein the configuration message further includes indication information for indicating a type of information carried over the backhaul link channel, and
wherein the type of information is one of types including a user equipment (UE) associated F 1 application protocol (F 1 AP) signaling or a non-UE associated F 1 AP signaling.
15 . The CU of claim 14 , wherein the indication information for indicating the type of information is associated with a control plane.
16 . The CU of claim 14 , wherein the receiving node comprises a second IAB node different from the first IAB node.
17 . The CU of claim 12 , wherein the first IAB node comprises the DU of the first IAB node and a mobile termination (MT) of the first IAB node.
18 . A first integrated access and backhaul (IAB) node comprising a distributed unit (DU) and a mobile termination (MT) in a communication system, the first IAB node comprising:
at least one transceiver; and
at least one processor coupled to the at least one transceiver and configured to:
receive, from a central unit (CU) of a donor node via a DU of the donor node, a radio resource control (RRC) reconfiguration message including identification information of a logical channel corresponding to a backhaul link channel and information about priority of the logical channel corresponding to the backhaul link channel, and
receive, from the CU of the donor node, a configuration message including:
address information of a receiving node over the backhaul link channel, and
channel identification information for the backhaul link channel, wherein the backhaul link channel comprises a radio link control (RLC) channel used for a link between a distributed unit (DU) of the first IAB node and the receiving node.
19 . The first IAB node of claim 18 , wherein the RRC reconfiguration message further includes identification information of each backhaul link channel.
20 . The first IAB node of claim 18 , wherein the configuration message further includes indication information for indicating a type of information carried over the backhaul link channel, and
wherein the type of information is one of types including a user equipment, UE, associated F1 application protocol (F1AP), signaling or a non-UE associated F1AP signaling.