Technique for determining segmentation parameters for use in segmenting RLC PDUs

A User Equipment (UE) comprising:

• processing circuitry and memory, the processing circuitry being configured to execute software instructions stored in the memory whereby the UE is configured to:
• determine a Transport Block Size (TBS) prediction of an expected physical layer TBS;
• determine an observation prediction of at least one of an expected channel quality, an expected traffic volume, and an expected available bandwidth observable during transmission of Radio Link Control (RLC) Protocol Data Units (PDUs) to be included into a physical layer transport block;
• determine, based on the TBS prediction and the observation prediction, segmentation parameters comprising a size of RLC PDU segments and a number of RLC PDU segments, wherein to determine the segmentation parameters the processing circuitry is configured to maximize the size of RLC PDU segments while keeping a total size of the number of RLC PDU segments within the expected physical layer TBS;
• and
• segment the RLC PDUs in an RLC preprocessing procedure prior to receiving an uplink grant for transmission of the RLC PDUs and in accordance with the size of RLC PDU segments and the number of RLC PDU segments.

A non-transitory computer readable medium storing a computer program product for controlling a User Equipment (UE), the computer program product comprising software instructions that, when run on the UE, cause the UE to:

• determine a Transport Block Size (TBS) prediction of an expected physical layer TBS;
• determine an observation prediction of at least one of an expected channel quality, an expected traffic volume, and an expected available bandwidth observable during transmission of Radio Link Control (RLC) Protocol Data Units (PDUs) to be included into a physical layer transport block;
• determine, based on the TBS prediction and the observation prediction, segmentation parameters comprising a size of RLC PDU segments and a number of RLC PDU segments, wherein determining the segmentation parameters comprises maximizing the size of RLC PDU segments while keeping a total size of the number of RLC PDU segments within the expected physical layer TBS;
• and
• segment the RLC PDUs in an RLC preprocessing procedure prior to receiving an uplink grant for transmission of the RLC PDUs and in accordance with the size of RLC PDU segments and the number of RLC PDU segments.