HARQ feedback implementation method and device
US9515782B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2013 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Mar 30, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/14
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed are an HARQ feedback implementation method and device. The method comprises: according to a TDD uplink/downlink reference configuration, dividing all downlink subframes contained in an FDD downlink carrier into two types, wherein the downlink subframes of the first type correspond to downlink subframes or/and special subframes in the TDD uplink/downlink reference configuration, and the downlink subframes of the second type correspond to the uplink subframes in the TDD uplink/downlink reference configuration; feeding back ACK/NACK information corresponding to the downlink subframes of the first type according to the timing sequence relationship in the TDD uplink/downlink reference configuration; and feeding back the ACK/NACK information corresponding to a downlink subframe m of the downlink subframes of the second type on an uplink subframe first meeting a preset condition after a subframe m+3 in the TDD uplink/downlink reference configuration. Thus, ACK/NACK information corresponding to downlink data can be accurately fed back in time, thereby performing accurate data retransmission, and then effectively guaranteeing the system performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.