FIELD: transmission of data packages.
SUBSTANCE: IAB donor defines the first configuration information, where the first configuration information is used to indicate the first radio link control channel (RLC) of the backhaul (BH), and the first RLC BH is used to transmit a control protocol data unit (PDU) at the backhaul network adaptation protocol layer (BAP). The IAB donor sends the first configuration information to the IAB node. According to the above procedure, the IAB donor indicates, using the first configuration information, the IAB node to send the BAP layer control PDU on the first BH RLC to implement bearer mapping when the IAB node is to send the BAP layer control PDU.
EFFECT: matching of unidirectional channels for data payload in transit communication line.
17 cl, 16 dwg
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