Method and apparatus for transport format signaling with HARQ
US7388848B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2004 |
| Grant date | Jun 17, 2008 |
| Priority date | — |
| Expiry date | Feb 22, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/1835
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention provides a method and apparatus for providing signaling in a communication link to a sending node and a receiving node using the hybrid automatic repeat request (HARQ) protocol. The invention is characterized by the fact that the signalling contains a predetermined bit pattern that indicates whether control information in the current transmission can be used alone for decoding, or whether some part of the control information from an earlier transmission must also be used. The basic idea is to inform only with one bit (‘TFCI flag’), whether the TFCI bits can be used for decoding the transport channel, using HARQ. If this bit is logical “1”, then it means that current TFCI can be used for decoding, i.e. that the number of information bits for this transport format equals the number that is defined also originally when TFCI has been defined. Alternatively, if this one bit is logical “0”, then it means that the receiving side has to assume the same number of information bits for this transport format as in the original transmission. Thus the number of information bits cannot be taken from the TFCI, when doing the decoding. Thus, typically, in the original transmission, th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.