Re-transmission CRC for polar coding incremental-redundancy HARQ
AssigneeMediatek Inc.
InventorsTun-Ping Huang, Mao-Ching Chiu, Wei-De Wu, Chia-Wei Tai, Tien-Yu Lin, Tao Chen
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Abstract
Examples pertaining to re-transmission cyclic redundancy check (CRC) for polar coding incremental-redundancy hybrid automatic repeat request (IR-HARQ) are described. An apparatus (e.g., UE) encodes a plurality of information bits using a polar code to generate a polar code block (CB). The apparatus performs one or more transmissions of the polar CB using hybrid automatic repeat request (HARQ) by performing an initial transmission of the polar CB and performing a re-transmission of the polar CB with a re-transmission cyclic redundancy check (ReTX CRC).
Claims12
A method, comprising:
- encoding, by a processor of an apparatus, a plurality of information bits using a polar code to generate a polar code block (CB);
- and
- performing, by the processor, one or more transmissions of the polar CB using hybrid automatic repeat request (HARQ) by:
- performing an initial transmission of the polar CB;
- and
- performing a re-transmission of the polar CB with a re-transmission cyclic redundancy check (ReTX CRC),
- wherein the performing of the initial transmission of the polar CB comprises performing the initial transmission of the polar CB with a code block cyclic redundancy check (CB CRC), and
- wherein a size of the ReTX CRC is smaller than a size of the CB CRC.
An apparatus, comprising:
- a transceiver configured to communicate wirelessly;
- and
- a processor coupled to the transceiver and configured to perform operations comprising:
- encoding a plurality of information bits using a polar code to generate a polar code block (CB);
- and
- performing, via the transceiver, one or more transmissions of the polar CB using hybrid automatic repeat request (HARQ) by:
- performing an initial transmission of the polar CB;
- and
- performing a re-transmission of the polar CB with a re-transmission cyclic redundancy check (ReTX CRC),
- wherein, in performing the initial transmission of the polar CB, the processor is configured to perform the initial transmission of the polar CB with a code block cyclic redundancy check (CB CRC), and
- wherein a size of the ReTX CRC is smaller than a size of the CB CRC.
Dependencies are inferred from the claim text.