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:
generating a configuration message including:
address information of a receiving node over a backhaul link channel,
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 first integrated access and backhaul (IAB) node of a distributed unit (DU) and the receiving node, and
indication information for indicating a type of information carried over the backhaul link channel, 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; and
transmitting, to the first IAB node, the configuration message; and
transmitting, to the first IAB node, a radio resource control (RRC) reconfiguration message including identification information of a logical channel corresponding to the backhaul link channel and information about priority of the logical channel corresponding to the backhaul link channel.
2. The method of claim 1 ,
wherein the RRC reconfiguration message further includes channel identification information for one or more backhaul link channels.
3. The method of claim 1 , wherein the indication information for indicating the type of information is associated with a control plane.
4. A method performed by a first integrated access and backhaul (IAB) node for a distributed unit (DU) in a communication system, the method comprising:
receiving, from a central unit (CU) of a donor node, a configuration message including:
address information of a receiving node over a backhaul link channel,
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 the first TAB node and the receiving node, and
indication information for indicating a type of information carried over the backhaul link channel, 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, and
receiving, from the CU of the donor node, a radio resource control (RRC) reconfiguration message including identification information of a logical channel corresponding to the backhaul link channel and information about priority of the logical channel corresponding to the backhaul link channel.
5. The method of claim 4 ,
wherein the RRC reconfiguration message further includes channel identification information for each backhaul link channel.
6. The method of claim 4 , wherein the indication information for indicating the type of information is associated with a control plane.
7. 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, configured to:
generate a configuration message including:
address information of a receiving node over a 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 first integrated access and backhaul (IAB) node of a distributed unit (DU) and the receiving node, and
indication information for indicating a type of information carried over the backhaul link channel, 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; and
transmit, to the first IAB node via the at least one transceiver, the configuration message,
transmit, to the first IAB node, a radio resource control (RRC) reconfiguration message including identification information of a logical channel corresponding to the backhaul link channel and information about priority of the logical channel corresponding to the backhaul link channel.
8. The CU of claim 7 ,
wherein the RRC reconfiguration message further includes channel identification information for each backhaul link channel.
9. The CU of the claim 7 , wherein the indication information for indicating the type of information is associated with a control plane.
10. A first integrated access and backhaul (IAB) node for a distributed unit (DU) in a communication system, the IAB node comprising:
at least one transceiver; and
at least one processor coupled to the at least one transceiver, configured to control the at least one transceiver to:
receive, from a central unit (CU) of a donor node, a configuration message including:
address information of a receiving node over a backhaul link channel,
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 the first IAB node and the receiving node, and
indication information for indicating a type of information carried over the backhaul link channel, 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, and
receive, from the CU of the donor node, a radio resource control (RRC) reconfiguration message including identification information of a logical channel corresponding to the backhaul link channel and information about priority of the logical channel corresponding to the backhaul link channel.
11. The first IAB node of claim 10 ,
wherein the RRC reconfiguration message further includes channel identification information for each backhaul link channel.
12. The first IAB node of claim 10 , wherein the indication information for indicating the type of information is associated with a control plane.