Abnormal case handling for acknowledged mode transmission and unacknowledged mode transmission
AssigneeInnovative Sonic Limited
InventorSam Shiaw-Shiang Jiang
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Abstract
Whenever the Receiver of this invention receives an AMD PDU or a UMD PDU with its “Length Indicator” having an invalid or a reserved value, the Receiver discards such a PDU and treats it as never received. The Receiver may report its receiving status accordingly if a report is required. This invention avoids invoking unnecessary RLC reset procedures and reduces the chance of losing HFN synchronization during AM or UM data transmissions.
Claims8
A method to reduce the chance of losing hyper frame number (HFN) synchronization during data block transmission between a sender and a receiver in a wireless communication system, wherein data blocks may contain a plurality of fields, wherein the method comprising:
- at the receiver:
- receiving a data block from the sender while the data transmission operation is in an unacknowledged mode;
- determining a condition of a particular field of the plurality of fields of the data block;
- and
- ignoring the data block when the condition of the particular field is one of a plurality of abnormal conditions;
- wherein ignoring the data block includes treating the data block as if it has never been received instead of treating the data block as missing when maintaining a HFN.
A receiver for reducing the chance of losing hyper frame number (HFN) synchronization during data block transmission between a sender and a receiver in a wireless communication system, wherein data blocks may contain a plurality of fields, wherein the receiver comprising:
- receiving a data block from the sender while the data transmission operation is in an unacknowledged mode;
- determining a condition of a particular field of the plurality of fields of the data block;
- and
- ignoring the data block when the condition of the particular field is one of a plurality of abnormal conditions;
- wherein ignoring the data block includes treating the data block as if it has never been received instead of treating the data block as missing when maintaining a HFN.
Dependencies are inferred from the claim text.