| 摘要 |
A method performed in a telecommunication system. At a source node, receiving, a sequence of PDCP SDUs for transmission to a device, appending a sequence number to each PDCP SDU, storing and ciphering the PDCP SDUs, passing the ciphered PDCP SDUs to an Outer ARQ entity for segmentation, generating Outer ARQ segments, generating and appending a respective Outer ARQ header to each Outer ARQ segment to generate a corresponding Outer ARQ PDU, sending the generated Outer ARQ PDUs to the device, and sending a request to a target node. At the target node, receiving the request and sending a response to the source node. At the source node, receiving the response, sending a command to the device, and forwarding stored PDCP SDUs with their appended sequence number to the target node. At a target node, receiving PDCP SDUs, from the source node and sending to a device, Outer ARQ PDUs. |
