Relay link HARQ operation
US8289895B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2009 |
| Grant date | Oct 16, 2012 |
| Priority date | — |
| Expiry date | Apr 26, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W16/32
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method for preventing a relay node from missing a transmission from an access node. The method includes, when a ten millisecond periodicity is used for Multicast/Broadcast Single Frequency Network (MBSFN) subframes, setting a time between an uplink grant from the access node to the relay node and an acknowledgement/negative-acknowledgement message (ACK/NACK) from the access node to the relay node equal to ten milliseconds. The method further includes, when a forty millisecond periodicity is used for MBSFN subframes, the access node sending the relay node an asynchronous grant for an uplink retransmission when a data packet is missed, and when the relay node receives the grant for the uplink retransmission, the relay node retransmitting the missed data packet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.