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.
Claims20
A method to reduce the occurrences of RLC reset or the chance of losing HFN synchronization during data block transmission between the sender and the receiver in a wireless communication system, wherein data blocks may contain different status related fields, wherein the method comprising the steps of:
- At the receiver:
- receiving data block from the sender while the data transmission operation is in a particular mode;
- determining the status of status related fields of the received data block;
- and
- discarding the received data block and treating the discarded data block as if it has never been received if one particular status related field matches one of a plurality of abnormal conditions.
A receiver for reducing the occurrences of RLC reset or the chance of losing HFN synchronization during data block transmission between the sender and the receiver in a wireless communication system, wherein data blocks may contain different status related fields, wherein the receiver comprising:
- means for receiving data block from the sender while the data transmission operation is in a particular mode;
- means for determining the status of status related fields of the received data block;
- and
- means for discarding the received data block and treating the discarded data block as if it has never been received if one particular status related field matches one of a plurality of abnormal conditions.
Dependencies are inferred from the claim text.