Methods of retransmission in semi-persistent scheduling without explicit HARQ feedback
US11502784B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2018 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | Feb 6, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/1896
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Example techniques for data retransmission in systems that do not utilize explicit hybrid automatic repeat request (HARQ) feedback are presented, including an example method (400) by a wireless device (102) that includes starting (402) a timer for a hybrid automatic repeat request (HARQ) process associated with a transport block (TB) transmission (105) by the wireless device (102) to the network node 106). The method (400) includes identifying (404) a HARQ policy (113) for the HARQ process, the HARQ policy (113) governing whether the wireless device (102) is to retransmit the TB or transmit a new TB where no HARQ feedback responsive to the TB transmission (105) is received from the network node (106) before the timer expires. Furthermore, the method (400) includes retransmitting (406) the TB or transmitting the new TB according to the HARQ policy (113) at a next periodic transmission occasion (307) for the HARQ process after the timer expires. Methods at a network node (106) and related apparatuses and computer programs are also presented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.