Patent · US Active

Systems, methods and devices for link adaptation and reducing hybrid automatic repeat request overhead

US10880047B2 · kind B2 · utility

0Cited by

0References

26Claims

0Family size

Assignee

Intel IP Corporation · US

Inventors

Yeong-Sun Hwang · Germering, DE
Holger Neuhaus · Birkenfeld, DE
Huaning Niu · San Jose, US
Wenting Chang · Beijing, CN
Sabine Roessel · Munich, DE

Key dates

Filing date	Jun 23, 2016
Grant date	Dec 29, 2020
Priority date	—
Expiry date	Nov 15, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH04L1/203
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

An apparatus, a system and a method use a class of dynamic switching mechanisms with multiple HARQ block sizes to reduce HARQ retransmission overhead while limiting the increase of HARQ ACK feedback overhead. The apparatus includes a first processing unit configured to estimate an intra-subframe fluctuation level of per-codeblock errors; a second processing unit configured to: map the intra-subframe fluctuation level to a hybrid automatic repeat request (HARQ) block size; determine a HARQ acknowledgement (ACK) format based at least in part on the HARQ block size; indicate the selected HARQ block size to a data transmitter; and generate a HARQ ACK. Per-code block link adaptation can be used to support multiple MCSs for a single user in each subframe with fine time-frequency granularity, with low-bandwidth signaling overhead and without a complete dependency on reference signal (RS) structure.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.