| 摘要 |
When the system receives a request to switch for using a smaller TBS size, instead of discarding the unacknowledged MAC-hs PDUs, this invention will pick up RLC UM PDUs or RLC AM PDUs or both of them from the unacknowledged MAC-hs PDUs affected by the size change request and reload them into the new PDU. Meantime, this invention will select RLC UM PDUs over RLC AM PDUs to load into the new PDU if the unacknowledged MAC-hs PDU contains both of them. Therefore, this invention reduces the risk of loss of synchronization for UM RLC because the discarding of unacknowledged MAC-hs PDUs according to the prior art.
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